US187896A

US187896A - Improvement in hand-punches

Info

Publication number: US187896A
Authority: US
Publication date: 1877-02-27
Anticipated expiration: 1894-02-27

Description

H. F. OSBORNE.

HAND PUNCH.

Patented Feb. 2'7, 1877.

UNITED STATES.

PATENT OFFICE.

HENRY F. OSBORNE, OF NEWARK, NEW JERSEY, ASSIGNOR TO CHAMPION BELT HOOK COMPANY, OF NEW YORK.

IMPROVEMENT IN HAND-PUNCHES.

Specification forming part of Letters Patent No. 187,896, dated February 27, 1877; application filed J annary 24, 1877.

To all whom it may concern:

Be it known that I, HENRY F. OSBORNE, of Newark, Essex county, New Jersey, have invented an Improvement in Hand-Punches and I hereby declare that the following is a full, clear, and exact description of the same, reference being bad to the accompanying drawings, of which- Figure 1 is a perspective View of the punch. Fig. 2 is a detailed view of the eccentric guide-pin. Fig. 3 is a view of a piece of leather belting and belt-hook.

The various adjustable guides in use not beingpositive in their adjustment, I have sought to devise one that, while not adjustable, could be changed in its relation to the cuttingtube t a limited number of times with the greatest convenience as well as certainty.

I therefore recess or bore the lower jaw O of the punch O D E F at a suitable point near the seat on which the tube cuts, and in the recess or hole insert a stud, l, secured by a clamp-nut, 0, and prevented from turning by a small pin in the jaw O, which fits into notches r, cut in the head of the stud E. On this stud l I form an eccentric guide-pin, 'i, of any required form, as round, flat, or polygonal, against which the substance to be punched is pressed when the tool is used. This pin, as shown in Fig. 2, being set off of the center of the stud l, is advanced toward the tube t, or withdrawn therefrom, by loosening the nut 0,

' so that the stud l can be lifted from its steadypin in the jaw U and turned in the required direction. Of course as many notches 1 will be required in the head of the stud l as there are sides or faces to the pin 0', a square pin, 4;,

necessitating the provision of four holes in the stud l.

In the drawings the punch is shown fitted for the punching of belts for books of a peculiar kind, rquiring two holes to be punched in each end of the belt.

The end of the belt being pushed (see Fig. 3) against the eccentric guide-pint, the first row of holes (marked a) is punched, and the pin 1' being inserted in these holes, the next row I) is correctly punched. As this special form of hook requires an oblong hole, only two positions of the stud l are possible, the one shown being adapted for the larger of two sizes of belt-hooks.

By reversing the stud lin the jaw C, it is evident that the guide-pin i would be advanced toward the tube t a certain amount, anld the holes punched closer together in the be t.

For larger or' smaller sizes of flat hooks than those named, another stud, 1, can be constructed with a greater eccentricity in the pin 2', and readily inserted in jaw 0 when required.

Having thus described my invention, what 1 claim, and desire to secure by Letters Patcut, is-

The combination, in a hand-punch, of the eccentric guide-pin '5, formed on a stud, l, with the jaw O and the tube t, all constructed and operated substantially in the manner shown and described.

H. F. OSBORNE.

Witnesses Tnos. S. CRANE, A. H. TRIMPI.