| Description | Engine Designs by James Watt, Edward Bull and Jonathan Hornblower’s Engines, Dutch Windmill etc. (27 items).
1345. Model Engines. Jul. 1788, Oct. 1792. 27 items.
Models of Boulton & Watt and Edward Bull's engines etc.
Plan and side view of a model of a working beam, 1780s [?] (this drawing is similar to the drawings of the model of the Hallamanin Mine working beam - see Portfolio 1307); plan and side and front views of a model of a barrel mounted in a frame (for winding or rolling?) - original and reverse drawings, Jul. 1788.
Reverse drawings of the model of Boulton & Watt's engine, Oct. 1792:
Parallel motion, working gear, side view of the engine, front view of the engine. All these drawings bear letter codes.
Reverse drawings of the model of Edward Bull's engine, Oct. 1792:
Nozzles, side view of the engine, front view of the engine and boiler, air pump, cylinder etc. All these drawings bear letter codes.
Also 16 untitled and undated drawings of various views of model engines, parts etc., including 5 drawings which appear to be of a model of framing.
Original Portfolio or 'Book' No. 191. Catalogue of Old Engines p. 338.
In 1792 Boulton & Watt made models of a typical example of their engine and Edward Bull's engine for use in their legal action. Matthew Boulton wrote from London to Watt requesting models of Watt's, Bull's and Newcomen's engines on 13 Oct. 1792 [Correspondence and Papers, 3/16/4]. Drawings were prepared for making these models, and John Southern placed the drawings in Book 191. At some point various other drawings of models were added, such as that of the model of the working beam and those of the model of the barrel. |