{"id":299,"date":"2017-02-19T19:08:01","date_gmt":"2017-02-19T19:08:01","guid":{"rendered":"https:\/\/danderton.co.uk\/projects\/portmm\/?page_id=299"},"modified":"2017-02-21T21:19:48","modified_gmt":"2017-02-21T21:19:48","slug":"heavy-loads","status":"publish","type":"page","link":"https:\/\/portmm.org\/cy\/the-museum\/heavy-loads\/","title":{"rendered":"Llwythi Trymion"},"content":{"rendered":"<p><\/p>\n<h1>LLWYTHI TRYMION ARBENIGOL<\/h1>\n<p>Wrth adeiladu atomfa yn Nhrawsfynydd yng nghanol ucheldir Eryri, 12 milltir o dref Porthmadog, fe gododd anhawster diddorol &#8211; sut i symud offer a pheiriannau trymion i safle mor anghysbell.<\/p>\n<p>Adeiladwyd yr atomfa gan gonsortiwm o gwmn\u00efoedd: Crompton Parkinson; International Combustion, Fairey Engineering a Richardsons Westgarth.\u00a0 Yr ymgynghorydd pensaern\u00efol ar gyfer yr adeiladau oedd Sir Basil Spence a Sylvia Crowe oedd pensaer y tirlunio.\u00a0 Cychwynnwyd ar y gwaith ym mis Gorffennaf 1959, ac roedd y ddau adweithydd yn weithredol erbyn Mawrth 1965, gyda\u2019r atomfa yn gwbl gynhyrchiol erbyn Hydref 1968, ar gost o \u00a3103 miliwn.<\/p>\n<p>Penderfynwyd yn gynnar iawn mai\u2019r dull orau o drosglwyddo\u2019r llwythi trymion o\u2019r ffatr\u00efoedd cynhyrchu i Borthmadog oedd gyda llong, ac oddi yno i Drawsfynydd ar y ffordd fawr.\u00a0 Golyga hyn osod sylfaen concrid ar lanfa Maenofferen, codi craen llwythi trymion anferth ar gyfer dadlwytho\u2019r offer o\u2019r llongau, a lledu a gwella rhannau o\u2019r ffordd fawr, gan gynnwys cryfhau\u2019r pontydd.\u00a0 Adeiladwyd y craen yn 1960, a daethpwyd \u00e2\u2019r offer codi llwythi trymion i mewn yn ystod y ddwy i dair blynedd ganlynol.<\/p>\n<p>Yn ystod cyfnod o chwe blynedd ar hugain y bu\u2019r atomfa\u2019n gweithredu, daeth llwythi trymion eraill gyda chwch i\u2019w dadlwytho ar Ben Cei &#8211; ym 1987 cafodd newidydd ar gyfer Pwerdy Ffestiniog ei gludo gan ddau gwch o eiddo cwmni o Gaergybi &#8211; <em>Holyhead Towing Co Ltd.<\/em> &#8211; y North Stack a\u2019r South Stack.<\/p>\n<p><a href=\"https:\/\/portmm.org\/wp-content\/uploads\/2017\/02\/Heavy-load1.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft wp-image-301 size-thumbnail\" src=\"https:\/\/portmm.org\/wp-content\/uploads\/2017\/02\/Heavy-load1-150x150.jpg\" width=\"150\" height=\"150\" \/><\/a><a href=\"https:\/\/portmm.org\/wp-content\/uploads\/2017\/02\/Heavy-load2.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft wp-image-302 size-thumbnail\" src=\"https:\/\/portmm.org\/wp-content\/uploads\/2017\/02\/Heavy-load2-150x150.jpg\" width=\"150\" height=\"150\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>LLWYTHI TRYMION ARBENIGOL Wrth adeiladu atomfa yn Nhrawsfynydd yng nghanol ucheldir Eryri, 12 milltir o dref Porthmadog, fe gododd anhawster diddorol &#8211; sut i symud offer a pheiriannau trymion i safle mor anghysbell. Adeiladwyd yr atomfa gan gonsortiwm o gwmn\u00efoedd: Crompton Parkinson; International Combustion, Fairey Engineering a Richardsons Westgarth.\u00a0 Yr [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":77,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/portmm.org\/cy\/wp-json\/wp\/v2\/pages\/299"}],"collection":[{"href":"https:\/\/portmm.org\/cy\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/portmm.org\/cy\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/portmm.org\/cy\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/portmm.org\/cy\/wp-json\/wp\/v2\/comments?post=299"}],"version-history":[{"count":3,"href":"https:\/\/portmm.org\/cy\/wp-json\/wp\/v2\/pages\/299\/revisions"}],"predecessor-version":[{"id":345,"href":"https:\/\/portmm.org\/cy\/wp-json\/wp\/v2\/pages\/299\/revisions\/345"}],"up":[{"embeddable":true,"href":"https:\/\/portmm.org\/cy\/wp-json\/wp\/v2\/pages\/77"}],"wp:attachment":[{"href":"https:\/\/portmm.org\/cy\/wp-json\/wp\/v2\/media?parent=299"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}