. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. HYDRAULIC POWER AND APPLIANCES. 133. 319. HYDRAULICPUNCH. A small plungerin the cylinder D, with in-let valve E and dischargevalve below, is operated bythe lever B, to give greatpressure to the ram H, towhich is attached the opening the by-passvalve K, the ra
. Mechanical appliances, mechanical movements and novelties of construction; a complete work and a continuation, as a second volume, of the author's book entitled "Mechanical movements, powers and devices" ... including an explanatory chapter on the leading conceptions of perpetual motion existing during the past three centuries. HYDRAULIC POWER AND APPLIANCES. 133. 319. HYDRAULICPUNCH. A small plungerin the cylinder D, with in-let valve E and dischargevalve below, is operated bythe lever B, to give greatpressure to the ram H, towhich is attached the opening the by-passvalve K, the ram is liftedby the lever L and revolv-ing wedge M, pushing theoil back into the reservoir Cross section of the hydrauhc punch, showing lever action. 321. FIRE EXTINGUISHER. Grinnel sprinkler type. Eachsprinkler is calculated to supply an area of 100 feet. The valve, a leaden disk affixedto the center of alarger disk of brass,is held up againstthe valve orifice bya system of twocurved levers, thelower of which issecured by fusiblesolder at its lowestpoint to a lightmetal frame. The valve seat is itself made elastic by the device offixing it in the center of a diaphragm of thin, hard metal, perforatedfor that purpose, and the pressure of the water upon the diaphragmkeeps it tight against the valve. The larger disk attached to the valvedisk serv^es as a d
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Keywords: ., bookauthorhiscoxgardnerdexter18, bookcentury1900, bookdecade1910
