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Publication numberUS1368443 A
Publication typeGrant
Publication dateFeb 15, 1921
Filing dateJun 28, 1919
Priority dateJun 28, 1919
Publication numberUS 1368443 A, US 1368443A, US-A-1368443, US1368443 A, US1368443A
InventorsRolph J Lackner
Original AssigneeRolph J Lackner
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Punch for paper
US 1368443 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

R. J. LACKNER.

PUNCH FOR PAPER.

APPLICATION f|Ln1uNE28,19r9.

1,368,443.1- Patented Feb. l5,

INVENTOR ATTOR UNITED STATELS rArsNr ortica.`

ROLPH J'. LACKNER, 0F NEW YORK, N. Y.

PUNCH FOR PAPER.

my invention is to provide a simple and in` expensive punch for punching' holes in paper checks, and particularly to punch holes in checks embodying my invention of raiseproof check designed to prevent a check from being; altered and raised.

Referring' to the drawings forming a Vpart ot' this application,

Figure l is a, perspective view olf a punch embodying my invention, carried on a key ring', and about double the actual size ci the punch as manufactured for use.

Fig. 2 is a side view of my improved punch illustrated on a. very large scale.

The punch is made oit' spring` brass or steel, or in :tact of any spring' material suitable for punching' a hole through thin paper, and is stamped 'lroin a sheet et such mate rial. illustrated by A, and bent into a llshaped form at E, to .torni a spring which normally holds the free ends C and D apart as illustrated. The end C is formed with male die portion E preferably cone shaped as shown on its outer surface to iorin an anvil and the lower end D is provided with a. hole F. the upper edge F ot which presents a sharp cutting edge to the cone surtace E so that a sheetot` paper lying between the ends C and D would be punched when said ends were 'Forced together as will be readily understood. In the drawings, the punching; portion of the punch or die is shown as circular but it is obvious that it may be formed in other patterns to provide holes of any desired torni within the skill of the die Specification of Letters Patent. Patented Feb, 15, 1921 Application filed June 28, 1919.

Serial No. 307,426.

maker. It will be seenV that the cutting edges are located on the inner sides of the spring' members and therefore will not cut the clothing' of the wearer.

The punch is operated by pressing the ends together between the thumb and lingers oi the operator. l prefer to iorrn` holes Gr and Ct in alinement with each other as illustrated for convenience in carrying the punch and to prevent its loss.

Having.;` thus described my invention, I

claim l. A punch for thin paper 'formed in a single piece comprising,` two oppositely disposed spring' members one oi' which is provided with a hole, one edge of which iorms the (Hitting portion et the punch and the other et which is provided with an inclined surface forming' an anvil adapted to contact with the cutting portion ot the punch.

2. A punch comprising' a strip oi sheet metal having a hole in one end, the wall of which is Jrorzned with a sharp edge; and the other end thereof extending,- over said hole and provided with an anvil of greater diaineter than that of said hole, the outer surtace ot which is inclined and disposed opposite said sharp edge and adapted to be pressed in contact therewith. f

A punch comprising a strip of sheet metal having;A a hole in one end, the wall of which is formed with a sharp edge; and the other end thereof extending' over said hole and in'ovided with an anvil of greater diameter than that of Vsaid hole7 the outer surtace oi which is conical in shape and disposed opposite said sharp edge and adapted to be pressed in contact therewith.

Signed at New York city, in the county of New York and State of New York, this 3rd day of June, A. D. 1919.

ROLPH J. LACKNER.

lWitness FRANK M. ASHLEY.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2445440 *Jan 20, 1945Jul 20, 1948Klemm William FPunch for loose-leaf binders
US2448627 *Jun 11, 1946Sep 7, 1948Claude SchaffnerDress pattern marker
US2996211 *Jan 2, 1959Aug 15, 1961Herman KoehlCombination punching and eyeleting device
US4756581 *Jul 7, 1986Jul 12, 1988Geoff PhillipsPortable file
US6314645 *Feb 16, 2000Nov 13, 2001Joseph N. WahlCigarette perforator
US20120102764 *Oct 29, 2010May 3, 2012Henry RogersPuncture Device for Blister Pack Medicine
WO2001060187A1 *Feb 16, 2001Aug 23, 2001Wahl JoeCigarette perforator
Classifications
U.S. Classification30/358, 402/1, 30/234, 59/93
International ClassificationB26F1/36
Cooperative ClassificationB26F1/36, B26F2001/365
European ClassificationB26F1/36