Hiscox, Gardner Dexter, 1822?-1908 · New York, The Norman W. Henley publishing co. · leaf 363
..1458. AUTOMATIC DISENGAGING GRIP for a pile driver. The arms of the grip jaws are collapsed bycontact with the inclined chocks above. … 1459. SWIVELLING DUMPINGCAR.— By turning the box and itsframe, which is pivoted on the truck,the load can be dumped in any direc-tion.
Mechanical movements
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