Mae ymchwilydd Comisiwn Brehinol Prosiect Atlanterra Spencer yn gweithio yn Cefn Mawr, Bwrdeisdref Sirol Wrecsam, yn chwilio am olion periant codi cwch camlas o’r 18fed ganrif yn agos i Traphont Pontcysyllte. Treialwyd nifer o cynlluniau periannau codi cwch camlas yn ystod diwedd y 18fed ganrif yn ystod cynfod ‘Canal Mania’ a talodd dau dyn busnes lleol, Edward Rowland a Exuperius Pickering costau adeiladu un o’r periannau yma, oedd am fod yn rhan o estyniad gorllewinol Camlas Ellesmere i’r gogledd o Traphont Pontcysyllte. Er i’r periant gweithio yn llwyddianus, ni chafodd yr estyniad gorllewinol ei adeiladu a tynnwyd y periant yn ddarnau. Ymwelodd nifer o beriannwyr sifil nodedig, yn cynwys John Rennie a cynorthwyydd James Watt, James Southern, i wylio y periant yn gweithio, ond yn anfodus, sgwenodd neb i lawr yn union lle adeiadwyd y periant.Mae ddau safle wahanol wedi cael ei awgrymu gan ymchilwyr hanes lleol a mae gwaith yn cael ei cynal i edrych ar y safleoedd yma i ceisio dod o hyd i tystiolaeth archaeolegol safle y peiriant codi cwch camlas.
Royal Commission Atlanterra Project investigator Spencer is currently working in Cefn Mawr, Wrexham County Borough, looking for the remains of an 18th century experimental canal boat lift near the Pontcysyllte Aqueduct. Many boat lift designs were trialled during the late 18th century at the height of ‘Canal Mania’ and two businessmen, Edward Rowland and Exuperius Pickering paid for the building of one such lift, which would have been part of a western extension of the Ellesmere Canal to the north of the Pontcysyllte Aqueduct. Although the lift worked successfully, the western extension of the canal was never built and the lift dismantled. Several notable civil engineers, including John Rennie and James Watt’s assistant, James Southern, visited the lift to watch it at work, but unfortunately did not record where the lift was actually built. Two different sites have been proposed by local history researchers and work is currently being carried out to look at these sites in an attempt to find archaeological evidence for the location of the boat lift.
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