Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 360
Section XVI. CONSTRUCTION AND DEVICES. Mixing, Testing, Stump and Pile Pulling, Tackle Hooks, Pile Driving,Dumping Cars, Stone Grips, Derricks, Conveyer, Timber Splic-ing, Roof and Bridge Trusses, Suspension Bridges. 1444, POST AUGER.—Often mads with asingle turn to the blade. Used also for… … 1445. PUG MILL, with spiral worm in a conicalshell, for mixing mortar, concrete, or other material. 1446. CONICAL PUG MILL for mixing clays,mortar, concrete, and other material. 1447. CONICAL MIXING BARREL formortar, concrete, or other material. 1448. CONCRETE MIXER.—A rectan-gular box of iron…
Mechanical movements
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