Metal deforming – By deflecting successively-presented portions of work during... – By tension applied to work or product
Patent
1978-12-13
1980-08-26
Mehr, Milton S.
Metal deforming
By deflecting successively-presented portions of work during...
By tension applied to work or product
100162B, 226186, 72205, 72160, 72289, 29130, B21D 102, B21B 3708, B21C 102
Patent
active
042189063
ABSTRACT:
For use in drawing, straightening or stretching a strip of metallic material such as bars, wire, and coils, an apparatus having a pair of elastic ring-equipped roll assemblies which provide a high tensioning force for the strip material held therebetween. As the tensioning force increases, the elastic ring in each of the roll assemblies tends to deform elastically along the circumferential direction of the area which contacts the material, thus increasing the contact area over which the applied force is evenly distributed. By this means the force per unit area can be reduced. The elastic ring is mounted on a control driving shaft by at least three axially rotatable rollers, two of which are arranged to bridge the area of the material contacted by the ring.
REFERENCES:
patent: 1563130 (1925-11-01), Weston
patent: 2696907 (1954-12-01), Fisk
patent: 2950507 (1960-08-01), Keyser
patent: 3881233 (1975-05-01), Schmidt et al.
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