| Description | United Mines wanted to erect an engine without infringing Boulton & Watt’s patent – Richard Trevithick has said he can do this. He also proposed to erect a whim engine at Ale & Cakes mine. However United Mines bought Wheal Carpenter’s engine, Mitchell is putting it up and Trevithick has quit the mine. Has been ordered to erect an engine at Poldory – cannot refuse as he needs the money and Trevithick and Bull will do it if he does not. Trevithick’s proposals for Podice’s engine. Details of Edward Bull’s engine at Pednandray [Penandrea?]. Hornblower’s engine at Penryn. Trevithick’s engine at Ding-dong mine. William Murdock’s alterations to Bull’s engine at Pednandray. |