Handling: hand and hoist-line implements – Grapple – Pivoted jaws
Patent
1990-07-09
1991-10-15
Cherry, Johnny D.
Handling: hand and hoist-line implements
Grapple
Pivoted jaws
294902, B66C 144
Patent
active
050568450
ABSTRACT:
An apparatus including pivoted arms relatively movable together, including a first arm and a second arm and a pivot axle positioned to secure each arm in a cross pivoted configuration, wherein the first arm includes a first jaw and the second arm includes a second jaw, each formed with a resilient face. Each arm includes an upper respective first and second link, each pivoted rearwardly to each respective first and second arm and pivoted at their forward terminal ends relative to one another securing a support ring, with the support ring including support linkage mounting the arms to a lifting member. The arms include medial linkage, including a third and fourth link to align the linkage relative to one another, with the third link including an abutment flange to prevent over-centering of the third link relative to the fourth link. The jaws are formed with replaceable faces including a "C" shaped jaw support slidably receiving a support web mounted at a lower terminal end of each arm.
REFERENCES:
patent: 580558 (1897-04-01), Scott
patent: 2337177 (1943-12-01), Breslav
patent: 2586843 (1952-02-01), McDonald
patent: 4169622 (1979-10-01), Claassen et al.
patent: 4175903 (1979-11-01), Carson
patent: 4452481 (1984-06-01), Williams
patent: 4543032 (1985-09-01), Leverett et al.
patent: 4545609 (1985-10-01), Pasquazzi et al.
Cherry Johnny D.
Gilden Leon
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