Presses – With flexible or deformable pressure surface – Circumferentially tightened loop
Patent
1977-03-29
1978-10-17
Wilhite, Billy J.
Presses
With flexible or deformable pressure surface
Circumferentially tightened loop
100 3, B30B 504
Patent
active
041202430
ABSTRACT:
A bundle compactor for elongated elements includes a plurality of aligned compacting units adapted to be used in conjunction with automatic stacking and strapping machines, each bundle compactor unit having a pair of coaxially pivotally mounted arms which are moved by a single piston-cylinder assembly from an open to a closed position through a crank and toggle links which lock the arms in closed position. A chain cinch trained over the distal ends of the arms completely encircles the bundle when the arms are closed and another piston-cylinder assembly tightens the cinch by moving a crank which includes rolls around which the cinch is trained, such rolls being thus moved away from a fixed anchor and fixed rolls for the cinch to tighten the cinch uniformly from each arm. At least one arm is bifurcated so that the other may move between the forked end of the one substantially completely to encircle the bundle with the cinch, the cinch also being bifurcated accordingly. A cyclically operated pressure intensifier is employed with the piston-cylinder assembly which tightens the cinch, the cyclical operation of which alternately increases and decreases the pressure in a ratio of about 3 to 1, respectively, until a predetermined maximum pressure is achieved. The compactor holds the bundle compacted until a strapping operation is completed.
REFERENCES:
patent: 306729 (1884-10-01), Elder
patent: 987740 (1911-03-01), Peterman
patent: 3427959 (1969-02-01), Keil
patent: 3956982 (1976-05-01), Hill
Carl Krasny & Associates, Inc.
Wilhite Billy J.
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