Handling: hand and hoist-line implements – Grapple – Resilient jaws
Patent
1988-06-03
1990-05-01
Skaggs, H. Grant
Handling: hand and hoist-line implements
Grapple
Resilient jaws
271204, 271268, 294104, 1988037, B25B 106
Patent
active
049212940
ABSTRACT:
A gripper assembly for gripping sheet materials such as a folded newspaper includes a fixed jaw and a movable jaw for engaging opposite surfaces of the article. The jaws are supported on a base block for pivotal movement relative to each other. The movable jaw is made of spring wire and includes a pair of gripping tangs, a pair of spring coils associated one with each gripping tang, and a pressing element extending between the gripping tangs. The movable jaw is pivotally mounted on a shaft about which the spring coils are wrapped. The spring coils bias the clamp arm as a whole, and also the gripping tangs, independently of one another, into clamping relation toward the fixed clamp arm. The pressing element clamps and presses the lower folded edge of a folded newspaper being held in the gripper assembly. The movable clamp arm is made from a single continuous piece of spring wire.
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IBM Technical Disclosure Bulletin, vol. 15, No. 5, Oct. 1972, Card Gripper for Rotary Press, Hingstman, pp. 1406-1407.
AM International Incorporated
Skaggs H. Grant
Waffner W.
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