Metal deforming – By deflecting successively-presented portions of work during... – To form helical coil or tube
Patent
1977-04-01
1978-09-12
Combs, E. M.
Metal deforming
By deflecting successively-presented portions of work during...
To form helical coil or tube
B21D 704, B21D 1106
Patent
active
041127277
ABSTRACT:
Apparatus for making flanges for large diameter pipe from bar stock of the type having a generally rectangular cross-section includes a substantially flat work surface for supporting the bar stock, a rotatable die position adjacent to the work surface and a drive shaft coupled to a motor for rotation of the die. A bonnet surrounds the die for applying pressure against the bar stock in directions toward the work surface, the bonnet being rotatable with the die and the drive shaft. One end of the bar stock is pinned to the peripheral edge of the bonnet such that the bar stock is bent about one short side thereof and wrapped around the die. The wrapped bar stock, in the form of a helical coil, is severed along a line substantially normal to the long sides thereof to form a plurality of C-shaped members, and the ends of the C-shaped members are joined into an endless loop so as to form the desired flange.
REFERENCES:
patent: 390357 (1888-10-01), Gathmann
patent: 393505 (1888-11-01), Green
patent: 1107005 (1914-08-01), White
patent: 1156458 (1915-10-01), Blanchard
patent: 2527518 (1950-10-01), Benson
patent: 2719563 (1955-10-01), Nielsen
patent: 3729968 (1973-05-01), Norris
patent: 3807211 (1974-04-01), Huhnen
patent: 3996779 (1976-12-01), Hawley
LandOfFree
Method and apparatus for making pipe flanges does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for making pipe flanges, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for making pipe flanges will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2378237