Hoist including guards with chain swelling and twist corrective

Details Hoist including guards with chain swelling and twist corrective Hoist including guards with chain swelling and twist corrective

1992-04-09

1994-05-31

Crowder, Clifford D.

Implements or apparatus for applying pushing or pulling force

Apparatus for hauling or hoisting load, including driven...

Device includes rotatably driven, cable contacting drum

254372, B66D 136, B66D 302

Patent

active

053162676

ABSTRACT:
A lever type traction machine including a pair of chain holders for holding a chain entering, between side plates, towards the load sheave. Each of the chain holders is provided with a chain-swelling (slacking) restraint portion for preventing the drain from slacking at the rear of the chain holders. The machine is especially advantageous in that the chain will not become entangled or slackened, even if the traction machine is operated up-side down or on its side.

REFERENCES:
patent: 1458354 (1923-06-01), Neller
patent: 1572001 (1926-02-01), Dotzert
patent: 2240523 (1941-05-01), Scramm
patent: 2342091 (1944-02-01), Schroeder
patent: 2477783 (1949-08-01), Britt
patent: 2529084 (1950-11-01), King
patent: 2656150 (1953-10-01), Lock
patent: 3056586 (1962-10-01), Burrows
patent: 4260136 (1981-04-01), Harman et al.
patent: 5007617 (1991-04-01), Nishimura et al.

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