US2415539A - Punch - Google Patents

Description

1947 v s. SEGAL 2,415,539

PUNCH Filed Nov. 15, 1944 Sheets-Sheet :5 f

Patented Feb. '11, 1947 s'm'lss ossi PUNCH Samuel Sega], New York, N. Y., assignor to Wilson-J ones (Jompany, Chicago, 111., a, corporation of Massachusetts Application November 15, 1944, Serial No. 563,485-

. l This invention relates to a punch of the type adapted to perforate sheets of paper or similar material. g

It is an object of this invention to provide simple, inexpensive and efficient means for retaining the shaft in the punch and for holding the handle down to conserve space in shipping It is a further object of this invention to provide an efficient side gauge that may be easily adjusted. It is ,a further object of this invention to simplify the manufacture of punches so as to reduce the cost without impairing the emciency line v-v of Figure 1 but showing the handle in depressed position;

Figure dis a fragmentary pressed position;

Figure '7 is a view similar to Figure 6 showing another embodiment of the invention; and

Figure 8 is an end elevation of the embodiment illustrated in Figure '7.

In the drawings, the reference numeral 2 indicates a base member provided with a plurality of punch heads 3, 3. The unch heads may be cast integrally with the base member, or may be secured to the base member by any suitable means. Each punch head is milled to form a throat l 'into which the sheets to be perforated are inserted. Each punch head is-provided with a, vertically extending aperture 5 which is pro-" vided with a shoulder 6 adjacent. the throat 4. A punch pin 1 is positioned in. the aperture 5.

- The lower end 8 of the punch pin is of reduced diameter so as to permit the cutting edge 9 to pass through the lower end ll) of the aperture 5, across the throat 4, and into an aperture H in the base member 2. A .coiled spring I! entop elevation illus-' -trating the means for holding the handle in degages the other edge. position of the punchis clearly illustrated in circling the lower portion of the punch pin '1 is mounted in the aperture 5 above the shoulder 6. When the punch pin 1 is depressed to perforate sheets positioned in the throat A, the spring I! 7 Claims. ,(Cl. 164-91) is effective to lift the punch pin as soon as the depressing pressure is released.

The upper portion of each punch pin 1 is provided with a recess l3 from the base of which a single tooth M projects; A shaft 15 having a longitudinal groove I6 is positioned in the punch with the groove I6, engaging the teeth M of each of the punch heads 3, 3. The shaft I5 may be mounted in apertures drilled through the punch heads, but, in order to save the expense of this drilling operation, I prefer to mill a recess ll in the punch head simultaneously with the milling of the throat t. v

An operating handle I8 is secured to. one end "of the shaft [5 so that when the handle is depressed each of the punch pins 1 is depressed in order to perforate the sheets positioned in the throats '4 of the punch heads. A spring pressed stu-d |'9-, illustrated in detail in Figure 4, is mounted adjacent one end of the shaft to prevent accidental removal of the shaft-from the punch heads. The shaft [5 is provided with a, small recess 26 and a spring 2| is inserted in the recess 20. The stud H! has an enlarged end 22 of the same diameter as the recess 20 which is inserted inthe recess 20 over the spring 2!. The edges of the shaft I5 adjacent the recess 20 are then peened over to permanently retain the enlarged end 22 of the stud I9 in the recess 20. When the shaft isto be inserted in the punch, the stud I9 is depressed until it is engaged by the punch head 3' (see Figure 1). As soon as the stud I9 is moved past the punch head, the spring'zl will project the stud outwardly so that the shaft cannot be removed unless the stud is again depressed so that the shaft may be moved in the reverse direction.

The handle I8 is provided with a projection 23 on its inner edge which is adapted to engage one edge of the punch head 3' when the stud l9 en- Ifhis normal operating Figure 1 of the drawings. When the handle l8 is depressed the projection 23 registers with a recess 24 provided in the adjacent edge'of the punch head 3'. The shaft l5 and handle l8 may then be moved to the left a short distance in order to engage the projection 23 with the recess 24. This engagement will hold the handle down in the position indicated in Figure 5 against the action of the spring l2 which exerts pressure to force the handle upwardly into the position indicated in Figure 3. The engagement of the projection 23 with the'recess 24 makes it possible to pack the punches without the necessity of tying the handle asiasss 3 down to the base member. This depressed position also enables a user to keep the punch in a desk drawer which would be too shallow to close if the punch handle I! were in its normal elevated position, as indicated in Figure 3.

. In the'embodiment illustrated in Figures 7 and 8, the handle 25 is provided with a shoulder 28. The punch head 21 is provided with a projection 28 on the side adjacent the handle 25. When the adapted to pass. The gauge 30 comprisesa wire,

preferably square in cross section, having one end bent forwardly, as indicated at 3i, Figure 1, and then downwardly, as indicated at 32, Figure 2, and then inwardly, as indicated at 33, in order to form a stop for one edge of the sheets to be perforated. The punch head 3' is provided with a recess 34 intersecting the aperture 23 at right angles. A coiled spring 35- is positioned in the bottom ofthe recess 34 and a plunger 36 is then placed in the recess. The plunger 33 has a notch 3'] extending transversely across one portion of its circumference. The plunger has a small, sharp projection 38 which extends into the notch 31 from the side which is closest to the bottom of the recess 34 as indicated clearly in Figure 5. The notch 31 is caused to register laterally with the aperture 29 when the plunger 36 is pushed inwardly against the action of the spring 35. When the notch 31 and the aperture 29 are in proper alignment the wire 30 may then be inserted. In order to hold the side gauge in any desired posi- 36 and the projection 38 will be pressed into contact with the wire 30 by the coiled spring 35. To facilitate lateral adjustment of the side gauge 30 to predetermined positions, the wire 30 is preferably provided with a plurality of indentations 39 spaced at predetermined distances which correspond with the commercial sizes of the paper normally used.

Although I have described two embodimentsof I I cept as limited by the appended claims.

I claim:

1. In a punch, a punch head, an operating handle, spring means urging said operating handle to an elevated position, and cooperating means on said handle and said punch head for retaining said handle indepressed position.

2. In a punch, a punch head provided with a recess on one edge thereof, and an operating handle provided with a projection adapted to engage with said recess when said handle is in depressed position.

tion, it is necessary only to release the plunger 8. In a punch, a punch head, a shaft mounted in said punch head, an operating handle secured to said shaft, said operating handle being normally in an elevated position, and cooperating means on said punch head and on said handle'adapted; to register with each other when said handle is in depressed position, said handle and said shaft be: ing slidable laterally of said punch head when said handle is in depressed position'whereby said cooperating means may engage each other to hold said handle in said depressed position.

4. In a punch, a punch head, a shaft mounted in said punch head, and a depressible spring pressed stud projecting from said shaft to prevent accidental displacement of said'shaft from said punch head. l

5. In a punch, a punch head having a milled recess in one surface, and another recess in one edge, a shaft positioned in said milled recess, said shaft having a' spring pressed stud projecting therefrom to prevent accidental displacement of said shaft, and a handle secured to said shaft andprovided with a projection on one edge, said projection registering with said second mentioned recess when said handle is depressed, said handle and said shaft being movable laterally of said punch head when said handle is depressed to engage said projection with said second mentioned recess, whereby said handle is maintained in depressed position. 1

6. In a punch, a transverse aperture and a recess intersecting said aperture, a plunger positioned in said recess, said plunger having a transverse notch adapted'to register withsaid aperture,

a side gauge extending through said aperture and said notch, and spring means urging said notch out of registration-with said aperture whereby said side gauge is held against lateral displaceing engageable with said indentations to facilitate lateral adjustment of said side gauge. i

- SAMUEL SEGAL.

REFERENCES CITED The following references are of record in the file of this patent:

' UNITED STATES PATENTS Number Name. Date 1,152,886 Dom Sept. '7, 1915 1,541,188 Salt June 9, 1925 2,328,558 Kipp Sept. '1, 1943 FOREIGN PATENTS Number Country Date 450,662 a British I July 22, 1938

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