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Llewellyn and Cubitt of Pentre, Rhondda Valley, South Wales, maker of stationary engines.  and mining equipment including headgear and pit cages.
William Cubitt had trained as a mining engineer, and then worked for Easton and Anderson.
1874 He founded Llewellyn and Cubitt Ltd in partnership with Griffith Llewellyn of Baglan, who owned large areas of land in the Rhondda.
The Rhondda Engine Works in Pentre supplied colliery equipment to mining concerns throughout South Wales. Their workshops consisted of an engine-house, iron and brass foundry, boiler shop and a smithy, and were erected on a portion of the Baglan Estate.