Metal deforming – By deflecting successively-presented portions of work during... – By use of work-contacting wiper and moving – work-holding form
Patent
1993-05-10
1994-02-08
Larson, Lowell A.
Metal deforming
By deflecting successively-presented portions of work during...
By use of work-contacting wiper and moving, work-holding form
72157, 72369, B21D 704
Patent
active
052840417
ABSTRACT:
Method and apparatus for bending metal tubes such as for furnace heat exchangers. After the bend die is rotated 180.degree. to make a bend, an upper section of the bend die is split from a lower section, and the upper section is then rotated approximately 90.degree.. In such manner, a portion of the upper section is displaced laterally to vacate a region directly above the lower section. Therefore, in moving the tube forwardly to a new location for a subsequent bend operation, a portion of a previous bend passes through the vacated region thereby enabling sequential bend angles that are less restricted than without rotating the upper section of the split die.
REFERENCES:
patent: 1873939 (1932-08-01), Mason et al.
patent: 2406838 (1946-09-01), Kepler
patent: 2814327 (1957-11-01), Charlton
patent: 3657911 (1972-04-01), Clarke et al.
patent: 4063441 (1977-12-01), Eaton
patent: 4112728 (1978-09-01), Noack et al.
patent: 5142895 (1992-09-01), Schuchert
patent: 5187963 (1993-02-01), Sutton et al.
Christensen David M.
Schuchert Eugene H.
Walker Richard N.
Amana Refrigeration Inc.
Clark William R.
Larson Lowell A.
McKeon Michael J.
Sharkansky Richard M.
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