Torque transmitting and indicating device

Details Torque transmitting and indicating device Torque transmitting and indicating device

1975-11-03

1977-06-14

Herrmann, Allan D.

192 clutches and power-stop control

Clutches

74520, 81 525, 116 67R, 192 431, 192 56L, F16D 4116, B25B 23142, G08B 302

Patent

active

040291855

ABSTRACT:
A device particularly adapted to transmit torque to a lever operated hoist for moving a load and including a torque transmitting toggle linkage mechanism biased to an operative position for transmitting the torque required to move loads not exceeding a predetermined magnitude upon movement of the hoist input lever and moveable to an indicating position upon movement of the input lever against a load in excess of the predetermined value. In some embodiments the movement of the toggle linkage to its indicating position occurs suddenly as in a snap action and a stop is provided on the input lever for arresting the movement of the linkage to create an audible indication of the movement of an overload. In other embodiments, means are provided to disengage the device from the hoist upon movement of the linkage to its indicating position.

REFERENCES:
patent: 460474 (1891-09-01), Knapp et al.
patent: 2074079 (1937-03-01), Bahr et al.
patent: 2300652 (1942-11-01), Cooney
patent: 2365486 (1944-12-01), Morris
patent: 3338359 (1967-08-01), Baillie et al.
patent: 3742786 (1973-07-01), Krain

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