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New PDF release: A history of the growth of the steam-engine

By Robert H. Thurston

This number of literature makes an attempt to collect a number of the vintage, undying works that experience stood the try of time and provide them at a discounted, cheap rate, in an enticing quantity in order that every person can take pleasure in them.

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Such an arrangement was in operation many years at the works of a Mr. Kiers, St. Pancras, London. It is described in detail, and illustrated, in Nicholson's " Philosophical Journal," vol. , p. 419. It had a "wagon boiler " 7 feet long, 5 wide, and 5 deep; the wheel was 18 feet in diameter, and drove the lathes and other machinery of the works. In this engine Blakely's plan of injecting air was adopted. The injection valve was a clack, which closed automatically when the vacuum was formed. The engine consumed 6 or 7 bushels of good coals, and made 10 strokes per minute, raising 70 cubic feet of water 14 feet, and developing nearly 3 horse power.

Papin's Two-Way Cock. cold condensing water. The dispersion of the water in minute streams or drops was a very important detail, not only as securing great rapidity of condensation, but enabling the designer to employ a comparatively small receiver or condenser. The engine is shown in Fig. 1S, which is copied from the "Experimental Philosophy" of Desaguliers. html (36 of 47)10/26/2006 12:30:20 Chapter 1 Fig. 15. - Engine built by Desagulier in 1718. The receiver, A, is connected to the boiler, B, by a steam pipe, C, terminating at the two way cock, 19; the " forcing pipe," E, has at its foot a check valve, g and the valve G is a similar check at the head of the suction pipe.

Such an arrangement was in operation many years at the works of a Mr. Kiers, St. Pancras, London. It is described in detail, and illustrated, in Nicholson's " Philosophical Journal," vol. , p. 419. It had a "wagon boiler " 7 feet long, 5 wide, and 5 deep; the wheel was 18 feet in diameter, and drove the lathes and other machinery of the works. In this engine Blakely's plan of injecting air was adopted. The injection valve was a clack, which closed automatically when the vacuum was formed. The engine consumed 6 or 7 bushels of good coals, and made 10 strokes per minute, raising 70 cubic feet of water 14 feet, and developing nearly 3 horse power.

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