| Description | Two undated drawings, early 1780s [?]:
Basic section and plan of an engine with chain connection - dimensions of some parts, such as the pipes and air pump are marked on.
Basic outline of section of an engine with chain connection, marked "Bradley".
Plan and section of new cylinder bottom for Bradley Old Furnace engine, 5 Jan. 1783. [This was for the first engine erected at Bradley, a 40 inch blowing engine.]
Plan and sections of a boiler, 10 Aug. 1796, marked "for John Wilkinson Esq." [It is not stated which engine this was for.]
Original portfolio cover. |