B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
152/28
B21D 25/00 (2006.01) B21D 1/05 (2006.01) B21D 3/12 (2006.01) B21D 11/02 (2006.01)
Patent
CA 1068203
ABSTRACT OF THE DISCLOSURE An apparatus for stretching sheet-metal strips includes several bending heads removably mounted between pairs of tension rollers, each bending head comprising a slender deflecting roller journaled in two end bearings and supported by heavier, shorter back-up rollers arrayed in two closely adjoining rows. The back-up rollers of each row have stub shafts cradled in V-shaped notches of a multiplicity of parallel webs transverse to their axis, the webs being integral with a common beam swingably mounted on a supporting frame. Oppositely notched retaining yokes are detach- ably secured to the webs to held the roller shafts in place and to complement the notches to diamond-shaped seats for these shafts. The bearing notches of all the webs are simultaneously machined and/or trued by the same tool sweeping thereacross.
259059
Noe Oskar
Skrober Wolfgang
LandOfFree
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