Sheet material drilling apparatus

Details Sheet material drilling apparatus Sheet material drilling apparatus

1987-04-30

1988-06-07

Weidenfeld, Gil

Cutting by use of rotating axially moving tool

With product handling or receiving means

Ejector

83125, 83140, 83454, 408 95, 408130, B23B 4100

Patent

active

047493143

ABSTRACT:
An apparatus for drilling sheet material comprises a reciprocating subframe which rotatably supports an annular drill and pressing means. The pressing means holds the material down during drilling and strips the material from the drill when the subframe is raised.

REFERENCES:
patent: 2637396 (1953-05-01), Spiller et al.
patent: 2686440 (1954-08-01), Van Cutsem
patent: 3066554 (1962-12-01), Hanson
patent: 3125883 (1964-03-01), Wollner
patent: 3289500 (1966-12-01), Tarello
patent: 3730634 (1973-05-01), Gerber et al.
patent: 3781124 (1973-12-01), Bodycomb
patent: 3899264 (1975-08-01), Tobias

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