Metal deforming – By use of non-deforming work-gripping clamp and relatively... – With cutting
Patent
1976-04-28
1977-05-03
Keenan, Michael J.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
With cutting
72203, 72217, 72297, 72332, B21D 4328, B21B 7024
Patent
active
040206696
ABSTRACT:
The invention concerns a bending machine for bar or rod material such as reinforcement bars for reinforcing concrete. The machine includes a bending mandrel which is stationary during the bending process and a bending tool which can be pivoted about the mandrel. Directly in front of the bending mandrel in the direction of the feed path of the bar or rod material are positioned two clamping cheeks movable relative to one another in a direction perpendicular to the feed path of the material, the cheeks each including a clamping face substantially parallel with the feed path and a cutting face substantially perpendicular to the respective clamping face, the lines of intersection of these faces forming cutting edges substantially parallel with one another. The clamping cheeks are also movable relative to one another in a direction substantially parallel toward the feed path so that they can be displaced from a clamping position in which their respective cutting edges are offset from one another and their clamping faces face one another, into a cutting position in which their cutting edges are aligned and the clamping faces are offset from one another.
REFERENCES:
patent: 670891 (1901-03-01), Cady
patent: 2424024 (1947-07-01), Garton
patent: 3120915 (1964-02-01), Horn et al.
patent: 3269164 (1966-08-01), Rutter
Gott Hans
Ritter Gerhard
Ritter Josef
Ritter Klaus
EVG Entwicklungs- und Verwertungsgesellschaft mbH
Keenan Michael J.
Marmorek Ernest F.
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