Method and apparatus for flattening portions of a corrugated pla

Details Method and apparatus for flattening portions of a corrugated pla Method and apparatus for flattening portions of a corrugated pla

1992-10-30

1994-08-02

Crane, Daniel C.

Metal deforming

By use of non-deforming work-gripping clamp and relatively...

Plural or complex apparatus

723796, 72312, 72414, 2989003, 226166, B21D 2210, B21D 1302

Patent

active

053334825

ABSTRACT:
A method and apparatus is provided for crushing a portion of a corrugated plate in a selected area of the corrugations without blocking the grooves. In accordance with the method teeth are inserted into grooves on opposite sides of the corrugated plate and the corrugation ridges associated with such grooves are, axially adjacent such insertion, crushed to a predetermined thickness. The teeth are then withdrawn, the corrugated plate is indexed a desired number of ridges/grooves and the die members are again engaged with the opposite sides of the plate. The apparatus for crushing a plate includes a frame for supporting the plate, a feed apparatus for moving the plate at the desired time in the desired direction, and a forming apparatus for crushing plate ridges in a zone and obstructing, in a transition zone between the crushed ridges and the uncrushed ridges, ridge transverse movement into adjacent grooves.

REFERENCES:
patent: 1462475 (1923-07-01), Atkinson
patent: 2221464 (1940-11-01), Zahodiakin
patent: 3748889 (1973-07-01), Miller et al.
patent: 3759323 (1973-09-01), Dawson et al.
patent: 3845654 (1974-11-01), Fuller et al.
patent: 4022050 (1977-05-01), Davis et al.
patent: 4114253 (1978-09-01), Loomis
patent: 4275581 (1981-06-01), Miller
patent: 4434637 (1984-03-01), Bailey

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