Sheet metal shears for metal sheets and plates with a highly sen

Details Sheet metal shears for metal sheets and plates with a highly sen Sheet metal shears for metal sheets and plates with a highly sen

1975-12-11

1977-03-29

Abercrombie, Willie G.

Cutting

With product handling means

Including means to form or hold pile of product pieces

83157, B26D 706

Patent

active

040142302

ABSTRACT:
A sheet metal shears for metal sheets and plates with a highly sensitive surface comprises: a sheet metal infeed platen with a lower blade secured to the edge thereof extending transversely to the direction of sheet advance; a sheet stop disposed in spaced relation from the lower blade in the direction of sheet advance; a movable top blade which in cooperation with the lower blade cuts sheet metal strips from the metal sheet which is advanced over the lower blade up to the sheet stop; and a support means for the sheet metal strips including a movable table which may be extended to support said strips prior to and during the cutting operation in a support plane which is a continuation of the surface of the sheet metal infeed platen and which may be retracted to enable the cut metal strips to fall vertically after they are cut from the sheet. The support table when extended prevents the free edge of the sheet which has been pushed beyond the lower blade from sagging downwardly due to the inherent weight of the sheet. The support table when retracted allows the strips to fall but does not scratch the undersurface of the strips as it retracts.

REFERENCES:
patent: 2933966 (1960-04-01), Dehn
patent: 3631750 (1972-01-01), Hanni
patent: 3760668 (1973-09-01), Spaulding
patent: 3893358 (1975-07-01), Dixon

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