Winding mechanism

Details Winding mechanism Winding mechanism

1977-02-16

1979-01-02

Blix, Trygve M.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

254184, 214 14, B66D 148

Patent

active

041323874

ABSTRACT:
Winding mechanism for example for cranes in which a winding drum is rotatable by two motors the first arranged to drive the drum so as to take up any slack rope when operating conditions, for example sea-state, reduce the load on the drum, the other motor driving the drum through an over-run device. If required the first motor is controllable in response to the difference between signals from the winding drum and a sensing drum in a manner to reduce the difference to zero to ensure motion of the winding drum in sympathy with motion of the messenger drum.

REFERENCES:
patent: 1999936 (1935-04-01), Lange
patent: 2042480 (1936-06-01), Patterson, Jr.
patent: 2402789 (1946-06-01), Tweedale
patent: 2443028 (1948-06-01), Edwards
patent: 3218034 (1965-11-01), Schat
patent: 3309065 (1967-03-01), Prud'homme et al.

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