Metal deforming – By deflecting successively-presented portions of work during... – By use of deflector arranged to bend work transversely of...
Patent
1998-05-01
1999-09-07
Crane, Daniel C.
Metal deforming
By deflecting successively-presented portions of work during...
By use of deflector arranged to bend work transversely of...
72181, 72177, B21D 508
Patent
active
059469617
ABSTRACT:
The inventive apparatus allows for bowing a continuous web being advanced axially of its length, about either or both axes that lie parallel to or perpendicular to its length. The parallel axis bowing structures include a plurality of separate stations spaced axially apart of web travel, each station having a pair of cylindrical outer rollers and a convex inner roller, respectively supported on opposite sides of the web operable to engage the web faces generally opposite one another. All outer rollers can be substantially the same and all inner rollers can be substantially the same. Mounting structures set the orientation of or included angle between the outer rollers differently at the different stations, to be parallel to different portions of the inner roller. Threaded screws force the rollers against opposite web faces, yielding progressive web bowing up to the curvatures of the inner roller as the web proceeds past each station. The perpendicular axis bowing structures include two sets of axially separated upper and lower rolls positioned against the opposite web faces, and a bias roll mounted to be adjusted against one web face and to project past the straight line tangent between the adjacent axially spaced rolls.
REFERENCES:
patent: 1056030 (1913-03-01), Killion
patent: 4299108 (1981-11-01), Kato
patent: 4530225 (1985-07-01), Meurer
patent: 4770017 (1988-09-01), Yamashita
patent: 4850212 (1989-07-01), Frey
patent: 5647241 (1997-07-01), Ruple
Buhrke Industries, Inc.
Crane Daniel C.
Lind Charles F.
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