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	<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?action=history&amp;feed=atom&amp;title=Chwarel_Pen-y-bryn</id>
	<title>Chwarel Pen-y-bryn - Hanes golygu</title>
	<link rel="self" type="application/atom+xml" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?action=history&amp;feed=atom&amp;title=Chwarel_Pen-y-bryn"/>
	<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Pen-y-bryn&amp;action=history"/>
	<updated>2026-05-06T12:03:45Z</updated>
	<subtitle>Hanes diwygio&#039;r dudalen hon ar y wici</subtitle>
	<generator>MediaWiki 1.43.1</generator>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Pen-y-bryn&amp;diff=13006&amp;oldid=prev</id>
		<title>Cyfaill Eben am 14:41, 22 Chwefror 2022</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Pen-y-bryn&amp;diff=13006&amp;oldid=prev"/>
		<updated>2022-02-22T14:41:58Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 15:41, 22 Chwefror 2022&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi oedd chwarel &amp;#039;&amp;#039;&amp;#039;Pen-y-bryn&amp;#039;&amp;#039;&amp;#039;, rhwng [[Chwarel Cilgwyn|Cilgwyn]], [[Chwarel Dorothea|Dorothea]] a [[Nantlle]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi oedd chwarel &amp;#039;&amp;#039;&amp;#039;Pen-y-bryn&amp;#039;&amp;#039;&amp;#039;, rhwng [[Chwarel Cilgwyn|Cilgwyn]], [[Chwarel Dorothea|Dorothea]] a [[Nantlle]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mae&#039;r chwarel hon yn cael ei hystyried &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;fel &lt;/del&gt;un o&#039;r chwareli hynaf yn yr ardal, gan ei bod wedi ei hagor yn y 1770au. Yn y safle yma mae nifer o dyllau cloddio sydd wedi eu henwi ar ôl y criwiau bychain oedd yn gweithio ynddynt. Dyma rai o&#039;r enwau: &#039;&#039;Cae Cilgwyn&#039;&#039;, &#039;&#039;Cloddfa Dafydd&#039;&#039; a &#039;&#039;Twll Ismaeliaid&#039;&#039;. Roedd incléin i lawr at Reilffordd Nantlle yn rhan o&#039;r chwarel hon hefyd.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mae&#039;r chwarel hon yn cael ei hystyried &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;yn &lt;/ins&gt;un o&#039;r chwareli hynaf yn yr ardal, gan ei bod wedi ei hagor yn y 1770au. Yn y safle yma mae nifer o dyllau cloddio sydd wedi eu henwi ar ôl y criwiau bychain oedd yn gweithio ynddynt. Dyma rai o&#039;r enwau: &#039;&#039;Cae Cilgwyn&#039;&#039;, &#039;&#039;Cloddfa Dafydd&#039;&#039; a &#039;&#039;Twll Ismaeliaid&#039;&#039;. Roedd incléin i lawr at Reilffordd Nantlle yn rhan o&#039;r chwarel hon hefyd.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Prynwyd y chwarel hon ym 1836 gan gwmni &#039;&#039;Kennaway &amp;amp; Co.&#039;&#039;, gan gyfuno Pen-y-bryn a Moel Tryfan (o dan yr un arweinyddiaeth) gyda [[Cloddfa&#039;r Lôn|Chloddfa&#039;r Lôn]] a Thwll Balast. Roedd y rhwydwaith hwn o&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;r &lt;/del&gt;chwareli bychain yn llwyddiannus iawn rhwng y 1840au a&#039;r 1880au. Erbyn 1882, roeddynt yn cyflogi oddeutu 240 o ddynion ac yn cyhynrchu 5,000 tunnell yn flynyddol. Yn y cyfnod yma roeddynt yn defnyddio pedwar twll, incléin a dwy olwyn ddŵr a weithiwyd gyda stêm, a hefyd wedi gosod tramffordd fewnol.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Prynwyd y chwarel hon ym 1836 gan gwmni &#039;&#039;Kennaway &amp;amp; Co.&#039;&#039;, gan gyfuno Pen-y-bryn a Moel Tryfan (o dan yr un arweinyddiaeth) gyda [[Cloddfa&#039;r Lôn|Chloddfa&#039;r Lôn]] a Thwll Balast. Roedd y rhwydwaith hwn o chwareli bychain yn llwyddiannus iawn rhwng y 1840au a&#039;r 1880au. Erbyn 1882, roeddynt yn cyflogi oddeutu 240 o ddynion ac yn cyhynrchu 5,000 tunnell yn flynyddol. Yn y cyfnod yma roeddynt yn defnyddio pedwar twll, incléin a dwy olwyn ddŵr a weithiwyd gyda stêm, a hefyd wedi gosod tramffordd fewnol.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Cafodd y chwarel ei chau 1887, ac &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;yn &lt;/del&gt;ei &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ail&lt;/del&gt;-agor &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;yn &lt;/del&gt;1892 ar ôl i gwmni [[Chwarel Dorothea]] ei phrynu. Caewyd y chwarel ym 1932 yn dilyn cwymp mawr yn y diwydiant.&amp;lt;ref&amp;gt;Tomos, Dewi &#039;&#039;Chwareli Dyffryn Nantlle&#039;&#039; (Llyfrau Llafar Gwlad, 2007)&amp;lt;/ref&amp;gt;&amp;lt;ref&amp;gt;Jean Lindsay, &#039;&#039;A History of the North Wales Slate Industry ‘’, (Newton Abbot, 1974), t. 328.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Cafodd y chwarel ei chau 1887, ac &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;yna &lt;/ins&gt;ei &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;hail&lt;/ins&gt;-agor &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ym &lt;/ins&gt;1892 ar ôl i gwmni [[Chwarel Dorothea]] ei phrynu. Caewyd y chwarel ym 1932 yn dilyn cwymp mawr yn y diwydiant.&amp;lt;ref&amp;gt;Tomos, Dewi &#039;&#039;Chwareli Dyffryn Nantlle&#039;&#039; (Llyfrau Llafar Gwlad, 2007)&amp;lt;/ref&amp;gt;&amp;lt;ref&amp;gt;Jean Lindsay, &#039;&#039;A History of the North Wales Slate Industry ‘’, (Newton Abbot, 1974), t. 328.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Cyfaill Eben</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Pen-y-bryn&amp;diff=4628&amp;oldid=prev</id>
		<title>Irion am 15:19, 24 Hydref 2018</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Pen-y-bryn&amp;diff=4628&amp;oldid=prev"/>
		<updated>2018-10-24T15:19:00Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 16:19, 24 Hydref 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi oedd chwarel &amp;#039;&amp;#039;&amp;#039;Pen-y-bryn&amp;#039;&amp;#039;&amp;#039;, rhwng [[Chwarel Cilgwyn|Cilgwyn]], [[Chwarel Dorothea|Dorothea]] a [[Nantlle]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi oedd chwarel &amp;#039;&amp;#039;&amp;#039;Pen-y-bryn&amp;#039;&amp;#039;&amp;#039;, rhwng [[Chwarel Cilgwyn|Cilgwyn]], [[Chwarel Dorothea|Dorothea]] a [[Nantlle]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mae&#039;r chwarel hon yn cael ei hystyried fel un o&#039;r chwareli hynaf yn yr ardal, gan ei bod wedi ei hagor yn y 1770au. Yn y safle yma mae nifer o dyllau cloddio sydd wedi eu henwi ar ôl y criwiau bychain oedd yn gweithio ynddynt. Dyma &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&lt;/del&gt;rai o&#039;r enwau: &#039;&#039;Cae Cilgwyn&#039;&#039;, &#039;&#039;Cloddfa Dafydd&#039;&#039; a &#039;&#039;Twll Ismaeliaid&#039;&#039;. Roedd &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;inclein &lt;/del&gt;i lawr at Reilffordd Nantlle yn rhan o&#039;r chwarel hon hefyd.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mae&#039;r chwarel hon yn cael ei hystyried fel un o&#039;r chwareli hynaf yn yr ardal, gan ei bod wedi ei hagor yn y 1770au. Yn y safle yma mae nifer o dyllau cloddio sydd wedi eu henwi ar ôl y criwiau bychain oedd yn gweithio ynddynt. Dyma rai o&#039;r enwau: &#039;&#039;Cae Cilgwyn&#039;&#039;, &#039;&#039;Cloddfa Dafydd&#039;&#039; a &#039;&#039;Twll Ismaeliaid&#039;&#039;. Roedd &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;incléin &lt;/ins&gt;i lawr at Reilffordd Nantlle yn rhan o&#039;r chwarel hon hefyd.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Prynwyd y chwarel hon &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;yn &lt;/del&gt;1836 gan gwmni &#039;&#039;Kennaway &amp;amp; Co.&#039;&#039;, gan gyfuno Pen-y-bryn a Moel Tryfan (o dan &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;y &#039;run &lt;/del&gt;arweinyddiaeth) gyda [[Cloddfa&#039;r &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Lon&lt;/del&gt;]] a Thwll Balast. Roedd y rhwydwaith &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;yma &lt;/del&gt;o&#039;r chwareli bychain yn llwyddiannus iawn rhwng y 1840au a&#039;r 1880au. Erbyn 1882, roeddynt yn cyflogi oddeutu 240 o ddynion ac yn cyhynrchu 5,000 tunnell yn flynyddol. Yn y cyfnod yma roeddynt yn defnyddio pedwar twll, &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;inclein &lt;/del&gt;a dwy olwyn ddŵr a weithiwyd gyda &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;stem&lt;/del&gt;, a hefyd wedi gosod tramffordd fewnol.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Prynwyd y chwarel hon &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ym &lt;/ins&gt;1836 gan gwmni &#039;&#039;Kennaway &amp;amp; Co.&#039;&#039;, gan gyfuno Pen-y-bryn a Moel Tryfan (o dan &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;yr un &lt;/ins&gt;arweinyddiaeth) gyda [[Cloddfa&#039;r &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Lôn|Chloddfa&#039;r Lôn&lt;/ins&gt;]] a Thwll Balast. Roedd y rhwydwaith &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;hwn &lt;/ins&gt;o&#039;r chwareli bychain yn llwyddiannus iawn rhwng y 1840au a&#039;r 1880au. Erbyn 1882, roeddynt yn cyflogi oddeutu 240 o ddynion ac yn cyhynrchu 5,000 tunnell yn flynyddol. Yn y cyfnod yma roeddynt yn defnyddio pedwar twll, &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;incléin &lt;/ins&gt;a dwy olwyn ddŵr a weithiwyd gyda &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;stêm&lt;/ins&gt;, a hefyd wedi gosod tramffordd fewnol.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Cafodd y chwarel ei chau 1887, ac yn ei ail-agor yn 1892 ar ôl i gwmni Dorothea ei phrynu. &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Roedd &lt;/del&gt;y chwarel &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;wedi cau erbyn 1950 &lt;/del&gt;yn dilyn cwymp mawr yn y diwydiant.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Cafodd y chwarel ei chau 1887, ac yn ei ail-agor yn 1892 ar ôl i gwmni &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Chwarel &lt;/ins&gt;Dorothea&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]] &lt;/ins&gt;ei phrynu. &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Caewyd &lt;/ins&gt;y chwarel &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;ym 1932 &lt;/ins&gt;yn dilyn cwymp mawr yn y diwydiant.&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&amp;lt;ref&amp;gt;Tomos, Dewi &#039;&#039;Chwareli Dyffryn Nantlle&#039;&#039; (Llyfrau Llafar Gwlad, 2007)&amp;lt;/ref&amp;gt;&amp;lt;ref&amp;gt;Jean Lindsay, &#039;&#039;A History of the North Wales Slate Industry ‘’, (Newton Abbot, 1974), t. 328.&amp;lt;/ref&amp;gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Ffynhonnell&lt;/del&gt;==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{eginyn}}&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt; &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Cyfeiriadau&lt;/ins&gt;==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Tomos, Dewi &#039;&#039;Chwareli Dyffryn Nantlle&#039;&#039; (Llyfrau Llafar Gwlad, 2007)&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{cyfeiriadau}}&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori: Chwareli llechi]]  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori: Chwareli llechi]]  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori: Diwydiant a Masnach]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori: Diwydiant a Masnach]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;{{eginyn}}&lt;/del&gt;&lt;/div&gt;&lt;/td&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-added&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Pen-y-bryn&amp;diff=4627&amp;oldid=prev</id>
		<title>Irion: Symudodd Heulfryn y dudalen Chwarel Pen-y-Bryn i Chwarel Pen-y-bryn heb adael dolen ailgyfeirio</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Pen-y-bryn&amp;diff=4627&amp;oldid=prev"/>
		<updated>2018-10-24T15:14:49Z</updated>

		<summary type="html">&lt;p&gt;Symudodd Heulfryn y dudalen &lt;a href=&quot;/index.php?title=Chwarel_Pen-y-Bryn&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Chwarel Pen-y-Bryn (nid yw&amp;#039;r dudalen yn bodoli)&quot;&gt;Chwarel Pen-y-Bryn&lt;/a&gt; i &lt;a href=&quot;/wici/Chwarel_Pen-y-bryn&quot; title=&quot;Chwarel Pen-y-bryn&quot;&gt;Chwarel Pen-y-bryn&lt;/a&gt; heb adael dolen ailgyfeirio&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;1&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 16:14, 24 Hydref 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-notice&quot; lang=&quot;cy&quot;&gt;&lt;div class=&quot;mw-diff-empty&quot;&gt;(Dim gwahaniaeth)&lt;/div&gt;
&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Pen-y-bryn&amp;diff=4494&amp;oldid=prev</id>
		<title>Irion am 08:26, 16 Hydref 2018</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Pen-y-bryn&amp;diff=4494&amp;oldid=prev"/>
		<updated>2018-10-16T08:26:42Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 09:26, 16 Hydref 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l11&quot;&gt;Llinell 11:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 11:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Tomos, Dewi &amp;#039;&amp;#039;Chwareli Dyffryn Nantlle&amp;#039;&amp;#039; (Llyfrau Llafar Gwlad, 2007)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Tomos, Dewi &amp;#039;&amp;#039;Chwareli Dyffryn Nantlle&amp;#039;&amp;#039; (Llyfrau Llafar Gwlad, 2007)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori: Chwareli]]  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori: Chwareli &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;llechi&lt;/ins&gt;]]  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori: Diwydiant a Masnach]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori: Diwydiant a Masnach]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Irion</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Pen-y-bryn&amp;diff=1832&amp;oldid=prev</id>
		<title>Miriamlloydjones am 14:02, 3 Chwefror 2018</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Pen-y-bryn&amp;diff=1832&amp;oldid=prev"/>
		<updated>2018-02-03T14:02:37Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;cy&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Fersiwn hŷn&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Fersiwn yn ôl 15:02, 3 Chwefror 2018&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Llinell 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi oedd chwarel &#039;&#039;&#039;Pen-y-bryn&#039;&#039;&#039;, rhwng [[Chwarel &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;y &lt;/del&gt;Cilgwyn|Cilgwyn]], [[Chwarel Dorothea|Dorothea]] a [[Nantlle]].&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Chwarel lechi oedd chwarel &#039;&#039;&#039;Pen-y-bryn&#039;&#039;&#039;, rhwng [[Chwarel Cilgwyn|Cilgwyn]], [[Chwarel Dorothea|Dorothea]] a [[Nantlle]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mae&amp;#039;r chwarel hon yn cael ei hystyried fel un o&amp;#039;r chwareli hynaf yn yr ardal, gan ei bod wedi ei hagor yn y 1770au. Yn y safle yma mae nifer o dyllau cloddio sydd wedi eu henwi ar ôl y criwiau bychain oedd yn gweithio ynddynt. Dyma &amp;#039;rai o&amp;#039;r enwau: &amp;#039;&amp;#039;Cae Cilgwyn&amp;#039;&amp;#039;, &amp;#039;&amp;#039;Cloddfa Dafydd&amp;#039;&amp;#039; a &amp;#039;&amp;#039;Twll Ismaeliaid&amp;#039;&amp;#039;. Roedd inclein i lawr at Reilffordd Nantlle yn rhan o&amp;#039;r chwarel hon hefyd.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Mae&amp;#039;r chwarel hon yn cael ei hystyried fel un o&amp;#039;r chwareli hynaf yn yr ardal, gan ei bod wedi ei hagor yn y 1770au. Yn y safle yma mae nifer o dyllau cloddio sydd wedi eu henwi ar ôl y criwiau bychain oedd yn gweithio ynddynt. Dyma &amp;#039;rai o&amp;#039;r enwau: &amp;#039;&amp;#039;Cae Cilgwyn&amp;#039;&amp;#039;, &amp;#039;&amp;#039;Cloddfa Dafydd&amp;#039;&amp;#039; a &amp;#039;&amp;#039;Twll Ismaeliaid&amp;#039;&amp;#039;. Roedd inclein i lawr at Reilffordd Nantlle yn rhan o&amp;#039;r chwarel hon hefyd.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l11&quot;&gt;Llinell 11:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Llinell 11:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Tomos, Dewi &amp;#039;&amp;#039;Chwareli Dyffryn Nantlle&amp;#039;&amp;#039; (Llyfrau Llafar Gwlad, 2007)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Tomos, Dewi &amp;#039;&amp;#039;Chwareli Dyffryn Nantlle&amp;#039;&amp;#039; (Llyfrau Llafar Gwlad, 2007)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori: Chwareli]]&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;[[Categori: Chwareli&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;]] &lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Categori: Diwydiant a Masnach&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;{{eginyn}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Miriamlloydjones</name></author>
	</entry>
	<entry>
		<id>https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Pen-y-bryn&amp;diff=1829&amp;oldid=prev</id>
		<title>Miriamlloydjones: Crëwyd tudalen newydd yn dechrau gyda &#039;Chwarel lechi oedd chwarel &#039;&#039;&#039;Pen-y-bryn&#039;&#039;&#039;, rhwng Cilgwyn, Dorothea a Nantlle.  Mae&#039;r chwarel hon yn cael...&#039;</title>
		<link rel="alternate" type="text/html" href="https://cof.canolfanuwchgwyrfai.cymru/index.php?title=Chwarel_Pen-y-bryn&amp;diff=1829&amp;oldid=prev"/>
		<updated>2018-02-03T13:53:01Z</updated>

		<summary type="html">&lt;p&gt;Crëwyd tudalen newydd yn dechrau gyda &amp;#039;Chwarel lechi oedd chwarel &amp;#039;&amp;#039;&amp;#039;Pen-y-bryn&amp;#039;&amp;#039;&amp;#039;, rhwng &lt;a href=&quot;/index.php?title=Chwarel_y_Cilgwyn&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Chwarel y Cilgwyn (nid yw&amp;#039;r dudalen yn bodoli)&quot;&gt;Cilgwyn&lt;/a&gt;, &lt;a href=&quot;/wici/Chwarel_Dorothea&quot; title=&quot;Chwarel Dorothea&quot;&gt;Dorothea&lt;/a&gt; a &lt;a href=&quot;/wici/Nantlle&quot; title=&quot;Nantlle&quot;&gt;Nantlle&lt;/a&gt;.  Mae&amp;#039;r chwarel hon yn cael...&amp;#039;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;Tudalen newydd&lt;/b&gt;&lt;/p&gt;&lt;div&gt;Chwarel lechi oedd chwarel &amp;#039;&amp;#039;&amp;#039;Pen-y-bryn&amp;#039;&amp;#039;&amp;#039;, rhwng [[Chwarel y Cilgwyn|Cilgwyn]], [[Chwarel Dorothea|Dorothea]] a [[Nantlle]].&lt;br /&gt;
&lt;br /&gt;
Mae&amp;#039;r chwarel hon yn cael ei hystyried fel un o&amp;#039;r chwareli hynaf yn yr ardal, gan ei bod wedi ei hagor yn y 1770au. Yn y safle yma mae nifer o dyllau cloddio sydd wedi eu henwi ar ôl y criwiau bychain oedd yn gweithio ynddynt. Dyma &amp;#039;rai o&amp;#039;r enwau: &amp;#039;&amp;#039;Cae Cilgwyn&amp;#039;&amp;#039;, &amp;#039;&amp;#039;Cloddfa Dafydd&amp;#039;&amp;#039; a &amp;#039;&amp;#039;Twll Ismaeliaid&amp;#039;&amp;#039;. Roedd inclein i lawr at Reilffordd Nantlle yn rhan o&amp;#039;r chwarel hon hefyd. &lt;br /&gt;
&lt;br /&gt;
Prynwyd y chwarel hon yn 1836 gan gwmni &amp;#039;&amp;#039;Kennaway &amp;amp; Co.&amp;#039;&amp;#039;, gan gyfuno Pen-y-bryn a Moel Tryfan (o dan y &amp;#039;run arweinyddiaeth) gyda [[Cloddfa&amp;#039;r Lon]] a Thwll Balast. Roedd y rhwydwaith yma o&amp;#039;r chwareli bychain yn llwyddiannus iawn rhwng y 1840au a&amp;#039;r 1880au. Erbyn 1882, roeddynt yn cyflogi oddeutu 240 o ddynion ac yn cyhynrchu 5,000 tunnell yn flynyddol. Yn y cyfnod yma roeddynt yn defnyddio pedwar twll, inclein a dwy olwyn ddŵr a weithiwyd gyda stem, a hefyd wedi gosod tramffordd fewnol. &lt;br /&gt;
&lt;br /&gt;
Cafodd y chwarel ei chau 1887, ac yn ei ail-agor yn 1892 ar ôl i gwmni Dorothea ei phrynu. Roedd y chwarel wedi cau erbyn 1950 yn dilyn cwymp mawr yn y diwydiant.&lt;br /&gt;
&lt;br /&gt;
==Ffynhonnell==&lt;br /&gt;
&lt;br /&gt;
Tomos, Dewi &amp;#039;&amp;#039;Chwareli Dyffryn Nantlle&amp;#039;&amp;#039; (Llyfrau Llafar Gwlad, 2007)&lt;br /&gt;
&lt;br /&gt;
[[Categori: Chwareli]]&lt;br /&gt;
&lt;br /&gt;
{{eginyn}}&lt;/div&gt;</summary>
		<author><name>Miriamlloydjones</name></author>
	</entry>
</feed>