Machinery and processes of the industrial arts, and apparatus of the exact sciences (1869)
Barnard, Frederick A. P. (Frederick Augustus Porter), 1809-1889 · Washington, Govt. print. off. · leaf 244
or of the case,A. Its interior communicates freely with the atmosphere, and itsexterior is plane on one side and perforated as represented in Fig. 72, theperforations being covered by the small slide valve J. This slide valveis connected by the rod I to the lever G, and consequently moves… … 228 PARIS UNIVERSAL EXPOSITION. several indexes, which work on the face of corresponding dials, as rep-resented by R, in Fig. 72. A ratchet wheel on the lowest and quickestshaft is operated by a pawl, which latter is connected to the work insidethrough the rod, L, which stands loosely enclosed in…
Machinery · Scientific apparatus and instruments
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