Movable or removable closures – With operator for movably mounted closure – One direction pull cable
Patent
1983-05-24
1984-12-11
Kannan, Philip C.
Movable or removable closures
With operator for movably mounted closure
One direction pull cable
24115F, 24115M, 24136R, 49404, 49449, E05F 1104
Patent
active
044869797
ABSTRACT:
A releasable grip-lock device for flexible elongate connectors such as ropes are used, particularly, in the cattle industry. The device is especially applicable to guillotine-type doors which are raised, maintained in a raised position in rock condition, and subsequently dropped at rather precise times so as to retain cattle in enclosures. The accommodating structure includes the principal of jaws, one of which is spring-loaded, for the purpose of gripping the rope holding the door open, for example, or actuates as a feeder which serves as a detent to keep the jaws open so that a rope will slip therethrough when a door to which the rope is attached or to which the same cooperates is dropped at desired times. A control lever is incorporated for the purpose of requiring a positive situation to urge the jaws from locked to unlocked position. When the control lever is actuated, the detent automatically comes into play whereby a finger provided nestles in a slot or a recessed area of the movable jaw so as to keep the jaw out of positive engagement with the rope and pulley.
REFERENCES:
patent: 154587 (1874-09-01), Davis
patent: 261797 (1882-07-01), Wimer
patent: 1260892 (1918-03-01), Goodman
patent: 3524227 (1970-08-01), Kelly
patent: 3821865 (1974-07-01), Steinke
patent: 4071926 (1978-02-01), Sweet et al.
Kannan Philip C.
Shaffer M. Ralph
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