Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 580
levereh has it- centre of oscillation at the upper extremity of :t Btrong frame l>. cast in a piece withle or base by which the machine is fixed to its foundations. The opposite end of the lever C isud by the rod K, to a piston working in the cylinder F. This cylinder, which i- open above,… … .
Mechanical engineering
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