Handling: hand and hoist-line implements – Grapple – Fixed and moveable jaw
Patent
1982-03-22
1985-07-30
Cherry, Johnny D.
Handling: hand and hoist-line implements
Grapple
Fixed and moveable jaw
294 92, 414911, B66C 144
Patent
active
045317712
ABSTRACT:
An "F-shaped" rug puller is disclosed for pulling stacked carpets wound in convolute rolls. The "F-shaped" rug puller has a rigid "L-shaped" arm with the central member of the "F" being pivotally attached. The L-shaped member includes two arms rigidly joined at right angles. One arm has a carpet claw at one end extending downwardly and upon the upper and outer surface of the convolute carpet roll. Medially located to the other arm of the L is a pivoted arm with a pointed aperture which imparts to the rigid "L" member the "F" configuration. This pivoted arm penetrates to and into the convolutely wound carpet roll. At the extreme end of the rigid arm remote from the carpet claw, there is preferably mounted a clevice. Typically, a tensive device such as a rope, chain or cable is used to pull the puller. In operation, the device is inserted into the spirally wound carpet with the pivoted arm penetrating into the central portion of the spirally wound convolute carpet roll. The carpet claw fits on top of the outer wind of the carpet. Upon pulling, an interaction between pivoted arm and outer claw develops urging the two, one towards another with a lever arm action about the pivoted central arm. The carpet thus is securely grasped so that as to first prevent a telescoping unwinding of the carpet. Thereafter, and with the successive spirally wound layers of carpet compressed, the roll as a whole is grasped and thereafter removed in a unitized and unwound spiral pack.
REFERENCES:
patent: 1135992 (1915-04-01), Cahill
patent: 2519067 (1950-08-01), Rich
patent: 2699880 (1955-01-01), Haehn et al.
patent: 2714969 (1955-08-01), Bartel et al.
patent: 2764447 (1956-09-01), Schmidt
patent: 2851300 (1958-09-01), Thayer
Bernardi A. L.
Cherry Johnny D.
Kinney William M.
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