Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . Pitman-Box Pitman-coupling. A means of connecting apitman to the object which it drives. Wrist-Wheel, Wri^t,anJ PIT-SAW. 1721 PIVOT-GEARING. lower end is plunged in thewater, the mouth pointingup stream. The rising of thewater in tlie tube, above thelevel of the outside, is themeasure of the force, thatis, speed of the
Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . Pitman-Box Pitman-coupling. A means of connecting apitman to the object which it drives. Wrist-Wheel, Wri^t,anJ PIT-SAW. 1721 PIVOT-GEARING. lower end is plunged in thewater, the mouth pointingup stream. The rising of thewater in tlie tube, above thelevel of the outside, is themeasure of the force, thatis, speed of the Pit-saw. A .saw oper-ateil by two men, one ofwhom stands on the logand the other beneath place of the latter isfrequently in a pit, andthence the name. Pit-w^ork. The pump-ing and lifting ajjparatusof a mine-shaft. Pivot. 1. (Machinery.)A short shaft or pintle onwhich a body oscillates or, revolves. A bearing-pin of a smallPii-Saic. shaft. 2. {JFatchmating.) Ajournal at the end of an arbor. The workman uses
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Keywords: ., bookcentury1800, booksubjectin, booksubjectmechanicalengineering
