Metal deforming – By use of non-deforming work-gripping clamp and relatively... – By individually non-deforming clamps
Patent
1976-04-19
1977-05-31
Keenan, Michael J.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
By individually non-deforming clamps
B21D 1114
Patent
active
040261379
ABSTRACT:
A machine for twisting and bending of elongated metallic strips which takes the form of a base upon which is mounted an elongated member of polygonal cross-section. A first holder is fixed to one end of said elongated member with a second holder being slidably mounted upon said elongated member adjacent the free end thereof. Within the first holder is located a first grasping means. Within the second holder is located a second grasping means. An elongated metallic strip is to be fixedly secured at each end thereof to said first grasping means and said second grasping means and to be positioned in a taut manner therebetween. A biasing means is included within said second holder with said second grasping means moving against said biasing means. A torque applying means attached to said first grasping means. Upon rotational movement of said torque applying means a uniform twist is established along the length of the metallic strip. A twist eliminator structure may be connected to the machine which would prevent a twist being formed a selected distance spaced from each end of the metallic strip if such is desired.
REFERENCES:
patent: 392119 (1888-10-01), Hardsocg
patent: 825511 (1906-07-01), Blondell
patent: 2192783 (1940-03-01), Ackerman
patent: 2636538 (1953-04-01), Algatt
patent: 2835283 (1958-05-01), Thone et al.
patent: 2929434 (1960-03-01), Barnes
patent: 3015355 (1962-01-01), Humphrey
Keenan Michael J.
Munro Jack C.
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