Metal deforming – By use of roller or roller-like tool-element – Comprising tool movable relative to stationary work-portion...
Patent
1992-02-11
1993-06-22
Larson, Lowell A.
Metal deforming
By use of roller or roller-like tool-element
Comprising tool movable relative to stationary work-portion...
72459, B21D 702
Patent
active
052208184
ABSTRACT:
Apparatus for bending pipes, particularly plastic or composite pipes, includes a chucking fixture for anchoring the pipes near the bending region, a bending template, the profile of which is made to fit the pipe cross section, and a bending cylinder which, in turn, has a profile that is made to fit the pipe cross section and is supported by a provided lever which, during a pivoting motion of the bending cylinder, is moved on a graduated circle about the bending template and runs concentrically to the surface of the bending template. In order to achieve easy manipulation, the apparatus is constructed as a manually operated device and parts of the apparatus are disposed on a mounting plate which is provided with a hand lever as a back-stop and which has a pivoted lever in the form of a hand lever for the bending cylinder.
REFERENCES:
patent: 1272552 (1918-07-01), Spencer
patent: 2345102 (1944-03-01), Dick
patent: 3051218 (1962-08-01), Franck
patent: 3059683 (1962-10-01), Atherton
patent: 3194038 (1965-07-01), Small et al.
patent: 3458440 (1976-05-01), Sassak
patent: 4132100 (1979-01-01), Schuler
patent: 4355528 (1982-10-01), Rothenberger
Hewing GmbH
Larson Lowell A.
McKeon Michael J.
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