Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 54
undertaking. In Hoods machine, the saw i- suspCD hd by a Blight sledge, and is worked by the power of only twoor three men at the end of a lever; a bar, called a propeller, is fixed on the lever between the fulcrumand the saw, the other end resting on the surface of the ice. and so adjusted that… … a -ide elevation of the machine, n >i ■/ i- a sledge, of open frame v.. on the surface of the ice; 6 a transverse bar passing through the lever ee, and forming the fulcrum on whichit moves; this lever has a cross-handle ated in perspective in doited lin tnp or consisting of two cheek-, one on…
Mechanical engineering
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