Grapple

Details Grapple Grapple

1977-12-21

1980-07-15

Werner, Frank E.

Material or article handling

Pole or tree handlers

81 5717, 294 21, 294 88, 414731, 414732, 414739, 414757, B65G 4790

Patent

active

042125774

ABSTRACT:
A grapple attachment for the boom of a hoisting machine having a pair of arms movable between open and closed positions, the arms supporting an endless chain which, when the arms are closed, embrace a pole to be placed so that the pole can be lifted and then rotated about its own axis by a drive motor engaging the chain so that the fittings and the like attached to the pole can be aligned in a selected direction while the pole is held by the grapple.

REFERENCES:
patent: 1752737 (1930-04-01), Grinnell
patent: 2746329 (1956-05-01), Paget
patent: 3112830 (1963-12-01), Podlesak
patent: 3177944 (1965-04-01), Knights
patent: 3776584 (1973-12-01), Van Gerven

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