Load-suspension arrangement for hoisting apparatus

Details Load-suspension arrangement for hoisting apparatus Load-suspension arrangement for hoisting apparatus

1989-03-08

1990-06-05

Cherry, Johnny D.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Driven positioning mean

188318, B66C 134

Patent

active

049308289

ABSTRACT:
Two rod portions (30, 31) are integral with a piston (3) which can slide in a cylinder (1) when a cone-point screw device (8) is partially open, the result of which is a translatory motion downward, of adjustable speed, of the load hooked to the cylinder by a shackle (21). The speed of translation can be controlled in such a way that the load is lowered onto its location very gently and without jolting.

REFERENCES:
patent: 1560477 (1925-11-01), Kessler
patent: 2500459 (1950-03-01), Hoover et al.
patent: 2860908 (1958-11-01), Peterson
patent: 4724970 (1988-02-01), Kuhn

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