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Image from page 217 of “Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval” (1879)

Image from page 217 of

Identifier: supplementtospon02spon
Title: Supplement to Spons dictionary of engineering, civil, mechanical, military, and naval
Year: 1879 (1870s)
Authors: Spon, Edward Byrne, Oliver Spon, Ernest Spon, Francis N
Subjects: Engineering
Publisher: London, brand new York, E. & F.N. Spon
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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Text Appearing Before Image:
1879. Niandet (A.), La PilejElectrique, 8vo, Paris, 1879. Maxwell (J. Clerk), A Treatise on Electricity and Magnetism,8vo. Journal of the Society of Telegraph Engineers, 8vo. Engineering; Electrician; Telegraphic Journal; Telegraph Journal, brand new York ; Electro Technische Zeitschrift. Zetzsche,* Handbuch der Elektrischen Telegraphic. Hankel, Electrische Untersuchungen. ENGINES, VARIETIES OF. Amongst the many varieties of the steam engine, the rotary engine has not realized thatefficiency which its comparative simplicity would appear to warrant. There are many forms of therotary engine, but those in Figs. 1206 to 1209 are of especial interest, as their capabilities havebeen carefully tested. The Myersengine, Figs. 1206 and 1207, has an inner case E, set eccentric to the outer cylinder,and revolving in a groove, so that the top portion forms an abutment. The piston 0 is secured to theshaft, and has a toggle-joint connection with the case at D. The piston also has a long fluke or lug 1207.

Text Appearing After Image:
at the end. The cylinder is divided into two compartments, each of which contains one of thesecases and pistons, the two pistons being set at right angles to each other. Steam is admittedthrough a valve and ports, F and G. The Gallahue engine, Fig. 1208, consists of a casting A, which includes the main cylinder, inwhich works the piston D, firmly attached to the inner revolving cylinder B, and there are twosliding abutments E and F, actuated by cams. Steam enters and is exhausted at the ends by steamports a b and exhaust ports c d. 1208.

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