Apparatus for determining the reeving of a pulley system

Details Apparatus for determining the reeving of a pulley system Apparatus for determining the reeving of a pulley system

1979-04-09

1981-02-17

Jillions, John M.

Implements or apparatus for applying pushing or pulling force

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

Device includes rotatably driven, cable contacting drum

254266, 340677, B66C 2360, B66D 136, B66D 154

Patent

active

042510597

ABSTRACT:
Apparatus for determining reeving of a pulley system including head pulleys on a jib or boom of a crane and reeving pulleys opposite the head pulleys. There is provided a sensor which may be electrically, mechanically, optically or pneumatically operable at some of the pulleys of the pulley system for sensing the presence or absence of the rope at its associated pulley. Each sensor provides a signal which is fed into a decoder module which may be connected to a display unit for displaying the information or a control device for enabling or inhibiting operation of the associated lifting equipment.

REFERENCES:
patent: 3345812 (1967-10-01), Pickering
patent: 3511476 (1970-05-01), Horton
patent: 3843883 (1974-10-01), DeVita
patent: 4042213 (1977-08-01), Schreyer
patent: 4046355 (1977-09-01), Martin
patent: 4169981 (1979-10-01), White et al.

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