Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Locking device
Patent
1986-08-18
1987-11-03
Cherry, Johnny D.
Handling: hand and hoist-line implements
Hook, hoistline, or grab type
Locking device
294 8641, 294106, 294902, B66C 164
Patent
active
047039680
ABSTRACT:
The present invention is a grapple for orienting track rails. The grapple includes a front tine and rear tine arcuate in shape and pivotally secured to a bottom end of a frame and depending therefrom to tip ends. Each tine defines an inner concave surface, and the tines are mounted to the frames so that the concave surfaces face towards each other. The front tine includes a knob portion integral with its tip end that extends outwardly from its inner concave surface towards the inner concave surface of the back tine. The tines are operated by a pair of hydraulic cylinders, and each tine includes a plurality of gear teeth extending from the end thereof that is secured to the frame. The gear teeth are enmeshed and provide for coincidental opening and closing of the tines by operation of the hydraulic cylinders. The knob portion of the front tine provides for cooperation with the ball portion of the railroad rail for orienting the rail into a desired upright position.
REFERENCES:
patent: 451090 (1891-04-01), Walter
patent: 2415898 (1947-02-01), Meadows
patent: 2509484 (1950-05-01), Curley
patent: 2639937 (1953-05-01), Billings
patent: 3177029 (1965-04-01), Larson
patent: 3201167 (1965-08-01), Wampler
patent: 3651966 (1972-03-01), Willett
patent: 4012069 (1977-03-01), Carson
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