Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1985-08-19
1987-04-28
Davis, Jr., Albert W.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
29446, 29464, B21D 3906
Patent
active
046602640
ABSTRACT:
A method is disclosed of assembling a tube into two non-parallel tube sheets. The tube ends are placed in mandrels. The mandrels are moved into the holes in the tube sheets by bending the tube. The tubes are provided with convex concave curvature to provide the necessary flexibility to aid assembly.
Aluminum Company of America
Davis Jr. Albert W.
Sullivan Jr. Daniel A.
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