Metal deforming – By relatively movable offset tool-faces – With tool motion in fixed path
Patent
1987-06-08
1989-01-17
Jones, David
Metal deforming
By relatively movable offset tool-faces
With tool motion in fixed path
83200, 72212, 72479, 72324, 72326, B21D 910, B21D 4328
Patent
active
047980788
ABSTRACT:
A hand-operated rebar bender, bent rebar straightener, and rebar cutting machine which includes a base, a pair of spaced apart bending posts, and a linearly reciprocable slide disposed between the posts and movable reciprocally in directions perpendicular to a line interconnecting the posts. The slide defines first and second grooves, both adapted to receive the rebar, which move with the slide. The grooves are positioned so that the straight rebar to be bent and the inclined legs of bent rebars to be straightened can be positioned tangent to the post. The base includes a guideway for the slide and, in one of its first and second positions, an end of the slide projects past the guideway. A rebar cutter defined by a frame releasably connected to the base includes a pair of rebar cutting discs having aligned, peripherally open grooves, one of the discs being fixed and the other being rotatable relative to the one. The rotatable disc includes a radially projecting arm arranged so that it is aligned with and proximate to the guideway for the slide when the peripheral disc grooves are in mutual alignment. When the slide end moves out of the guideway, it engages the actuating arm, pivot it relative to the fixed disc and thereby cuts a rebar disposed in the peripherally open, aligned grooves of the discs.
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patent: 4005593 (1977-02-01), Goldberg
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patent: 4594875 (1986-06-01), Schweitzer
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