Renwick, James, 1790?-1863 · New York, G. & C. & H. Carvill · leaf 158
ving the cap, and all the others will be turnedequally by the wheel and pinions. CONDENSING ENGINE 151 In the figure annexed a is the piston rod, h h the wheelfitted loose upon it, c, c, c, c, c pinions forming the heads ofthe screws tliat compress the packing, d square head formedupon one of the… … 88. A metallic packing invented by Cartwright appears,in the opinion of a very intelligent artist, Hkely to super-sede all others. Two rings of metal, accurately ground tofit the cylinder, are interposed between the upper andlower parts of the piston. Each of these rings is cut intathree parts, and…
Steam-engines
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