Nova Patents
US2083370A

Automatic rotary punch

Abstract

This record has no abstract on file.

US2083370A, drawing sheet 1
Sheet 1 of 2

Term

Term ended

Expired 26 June 1956, 70.2 years ago.

  1. Priority and filed
  2. Granted
  3. Expired
  4. Today

1 claim: 1 independent, 0 dependent

  1. 1
    I claim:,-/ _ a , uto2natlc rotary punch comprising male ’ Λβ m ? mbers · means adapted to rotate said die members in unison, said die members secured to said rotating means, spring actuated plungers disposed about the periphery of in Of ώβ mem bers, openings in the other 10 fi* member, a stationary shaft having a laterally extending arm thereon adapted to successively S £ d plungers into said openings as the “·® rot®** 1 to Punch a portion of material from the stock, the axis of said stale tionary shaft coinciding with said driving means mf’ ‘^o’natic rotary punch comprising die “ eans adapted to rotate said die membras in unison, said die members secured to said 9n r^^f ?**“· plungers disposed about the pe 20 of ° ne ot saId me “embers, openings in dle J ne ^. ber ’ a stationary shaft having a laterally extending arm thereon adapted to successively depress said plungers into said openings as the die members are rotated to punch a 9,088.870 no° f material from the stock, the axis of said stationary shaft coinciding with said driving means for said die members, and means for automatically retracting said plungers. . ,7 a rotary die member for punching ma- । S SnS %**’ - plunUlt y of Plungers mounted around the periphery of said die member a cam, projections on said plunger^ nahmted 'to engage said cam to automatically retract said plungers after the punching operation. . 4 / Jo a rotary die member for punching material from stock, a die ring having a plurality of disposed about the periphery thereof, ssdd plungers having pins mounted thereon adapted to cooperate with a cam finger to automatically retract said plungers in said die ring 5. In a rotary die member for punching ma a pluraUt * °f Punch members provided witii projecting pins and disposed about the periphery of said die member, means for suc sald punch members with the material and cam means adapted to engage said pins to retract said punching memtwy GKRAU) G. GRKUUCH. ι: