Metal deforming – With cutting – By composite tool
Patent
1983-05-19
1985-04-16
Crane, Daniel C.
Metal deforming
With cutting
By composite tool
72328, 83140, 83136, 83132, 29 62, B21D 2810, B21D 4508
Patent
active
045107866
ABSTRACT:
A method of making double reverse corrugated material includes feeding the material between an upper die and a lower die. Each of the dies have laterally spaced projections and a stripper positioned in the spaces between the projections of the die. One die is moved toward the other die to form the corrugations in the material. One die is moved away from the other die while both strippers and the other die are maintained substantially fixed with respect to each other. The stripper associated with the moving die is then moved with respect to the other die and the stripper associated with the other die is then moved with respect o the other die to strip the formed double reverse corrugated material from the dies. The formed material is then moved out from between the dies.
REFERENCES:
patent: 493791 (1893-03-01), Schurig
patent: 1925034 (1933-08-01), Fitzgerald
patent: 2350004 (1944-05-01), Whistler et al.
patent: 2828792 (1958-04-01), Hill
patent: 3162925 (1964-12-01), Felsenthal
patent: 3376684 (1968-04-01), Cole et al.
patent: 3488987 (1970-01-01), Stoeckli
patent: 3803894 (1974-04-01), Bustin
Crane Daniel C.
The Langenau Manufacturing Company
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