Introductory course of natural philosophy for the use of schools and academies. Ed. from Ganot's popular physics. By William G. Peck (1869)
Ganot, Adolphe, 1804-1887, Peck, William Guy, 1820-1892 · New York A.S. Barnes · leaf 132
ication to pumps and other machines. The Air-pump. 125. An Air-pump is a machine for exhausting the airfrom a closed space. The air-pump was invented by Ottovon Guericke, in 1650. A perspective view of one of the most common forms of the airrpump is given in Fig. 87. The details of its construction… … Fig. 67. tudinal, and the latter a transverse section. In all of the figures, thesnme letters indicate corresponding parts. The air-pump consists of two glass cylinders, called barrels, inwhich are pistons, P and Q. made of leather, thoroughly soaked inoil. The pistons arc attached to rods, and are…
Physics
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