US1687758A

US1687758A - Paper punch

Info

Publication number: US1687758A
Application number: US47184A
Authority: US
Inventors: Glaeser Ado
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-07-31
Filing date: 1925-07-31
Publication date: 1928-10-16
Anticipated expiration: 1945-10-16

Description

Oct. 16, 1928.

A. GLAESER PAPER PUNCH 7 Filed July 51, 1925 14- W l @1 w ll. 14

IA! VEN TOR.

I 10. Rdo GMeJer BY W A; ATTORNEY supported in such cross piece will register Patented Get. 16, 1928.

UNITED STA TIE-LS 1,687,753 (PATENT on-" w.

ADO enli ting or w om evn NEW ou PAP R PUNCH.

Application filed July 31, .1925; Serial No. 47,134.

springs for holding the punches normally in raised position and for returning the punches after operation, and a. comparatively long lever device for actuating the punches.

It is an object of the present invention to provide simple, compact and efiicient means for punching sheets at the required points.

Another object of my invention is to provide a simple, sturdy paper punchingdevice of improved construction and of few number of parts, and a punch that hasa novel and improved means for supporting and returning the punch members to their normal positions.

Other objects of the invention are to provide a device of this character adapted for easy assembly and disassembly, a device adapted for easy repair and replacement of parts. a device in which the die plate may readily be shar )ened and a device rovided with means for adjusting the depth to which paper may beinsertedifdes red.

These and other objects'ofthe invention may be attained n the following manner.

According to the preferred embodiment of the invention provision is made of abase having downwardly turned edge portions to ho d the body thereby spaced from a support there-for having an opening across which a suitable die plate may be secured. Mounted on the base is a T-shaped member or standard having the upright portionthereof extending torwardly-and the cross or top portion overlying the dievplate so that punches shdably with the openings in the die plate. Such punches are connected with the ends ofa leaf s n-ins preferably of steel supported at its r p q I the holes in the spring. Instead of having two punches only, a larger number may be cent-er by an upward proiecti on atthe center oi the cross piece of the T This single spring serves not only to maintain the punches in raised position but to return the pun h to normal p'os'tion after operation the sprint? may alsobe' usudiii removing the punches from thedevice or in bringing them I into the guides therefor.

To operate the punches provision is made of a handle or striking. platepivoted on the rearward portion of the. T and having a substantially round portion preterably posi-- 'tioned centrally with respect to the die. plate and lateral extensions having portions ontho lower faces thereof toengage the upper ends of the punches. The rounded head of the position for insertion in handle may be of considerable size to provide a suitable bearing surface for engagement or' striking by the hand. It will be evident that, with this arrangement ofthehandle-a'fvery compact form of the device will'be' obtained as there is no. long extending lever required for operation. The connectionjbetwen the handle and the T-shaped' supporting member is such thatthe handle has limited upward movement and it serves to prevent the punches falling out of the device when the latteris inverted.

According to anotherembodimentof the invention, provision ismade of'an adjustable spacing or gage to determine the deptlito which the paper may be inserted inthe punch and of means for adjusting the distance between the guides to spacethe punches as r'equired. i To correspond with such changes in the positions of the punches provision may be madeof die plates liaving'the openings therein spaced at different distances.

A convenient form of the punch-controlling leaf spring is one which has longitudinal slots extending inwardly fromtheends thereof so that these ends maycooperate with suit- "able grooves in the upper ends of the punches.

lVitli this arrangement the spring and the two "punch es may "be v conveniently assembled and moved as'a" unit into positionto insert the'punchesjin the guides. It will beunderstood that the slots at; the ends of the spring support may be extended in lengthto'allow for'adjustment of the punches, or the spring may beprovided with holes at difi'erent locations so that the punches may be inserted; In

thislast instance. I h'a'vefound' it satisfactory to provide washers to support the punches in.

provided and allfof these may be controlled by single leaf spring supported at suitable positions, in the inteva'ls between the punches. die plates may be flat M33 the punches may have circular ends, thus producing a uniform cutting action completely around the perforations in the die plates. It may, however, be desirableto start the cut at one or more points and then carry it com pletely around the perforation thus giving a progressive cutting. To produce such effects use may be made of a die plate curved upwardly from its edges to its central line, or the ends of the punches may be cut away so that device shown in Fig. 1;

' forated, and the cross member ward projection 18 vention shown in Figs. 1 and portions 3 and having ing ' position (Fig. 2) byany 3 is a view in section taken along the line 3-3 of Fig. 1; p

Figfi l is a view of a leaf spring for controlling the punches;

Fig.5 is a top plan view of a device embodying another form of the invention;

Fig. 6 is an elevational view of three punches supported by a single spring;

Fig. 7 is a top plan view of a leaf spring having three punches combined therewith; Fig. 8 is a perspective view showing a curved die plate; 7

Fig. 9 is a view illustrating the operation of a punch in connection with the curved die plate of Fig. 8; and V v Fig. 10'is a top plan view illustrating a resilient means such as a spring, with slots ineither end for holding the punches. j

According to the embodiment of the in- 2, the device comprises a stand having a'base 2 spaced above by means of downwardly turned flange at its front an openplaced a die plate 5, and which may be sesuitable means such as ing a over wiich is preferably of steel,

cured in posit-ion by screws 6. The stand also includes a member or standard 7 having a rearward portion supported by the base 2 and extendis positioned above the die plate 5. The die plate is provided with suitable openings 9 positioned to determine the desired location.

sheets to be per 8 is provided with cylindrical guideways 10 in register with the openingsl) and designed to receive punches 11 to cooperate with the die plate 5. These punches 11 are normally held in raised suitable means prefof the perforations in the erably by a leaf spring of the cross member 8. The spring is provided at its ends with slots 14 to receive reduced portions of the punches 11, such reduced portions of the punches 11. being obtained by forming circular grooves device which consists of a T-shaped forwardly to the cross member 8 which 1n the paper there is 12 resting on an up of slightly greater Width than the thickness of the leaf spring. It will be evident that the punches 11 and leaf spring 12 maybe assembled conveniently and then brought into position with the punches immediately above the guide-ways 10 and be lowered into the same thereby providing simple assembly.

To depress the punches 11 provision is made of a handle or striking plate 15 having forked extension to embrace the part of the T-shaped member and connected therewith by means of a pivot, usually in the form of a bolt 16. secured in position by a nut 16, the arrangement being such that the upward v movement of the handle 15 is limited by the of a stop portion 17 thereon with engagement The centhe upper edge of the member 7.

tral portion of the handle 15 is substantially circular and so formed as to" provide an eX- tended surface for engagement by the hand. Extending laterally from the central portion of the handle 15 are arms 18 forming a substantially fiat arch provided with downwardly-extending portions to engage the upper ends of the punches 11.- At the rear edge of the die plate opening 1 there is a guide or gage 20 to determine the extent of insertion of the sheet beneath the punches.

Thus in my preferred form'disclosed in Figs. 1 to a, I have shown a simple, sturdy and very'satisfactorily operating punching parts that are automatically maintained in assembled-position. This preferred punching device is of compact form andoccupies very small spacevand does not have an extended lever which is usual with punches heretofore manufactured. An additional advantage is that the die plate may be sharpened if desiredwit-hout removing the from the punch, although it is a simple operation toremove the plate to recondition the openings 9. It will also be noted th this preferred type of punch the Strike! plate 15 has its center located back of the front edge of the base or it may be said that the center is between the. front and rear edges of the base so that upon striking the plate 15 or pushing the same down to form the holes no dangerof the punch Further, the simplicity of tipping over. the single supporting for the punches is particularly,'benencial in the normal operation of. the punch, and such construction 'materially facilitates assembling and disassembling the small number of parts.

It is often usual in the construction of paper punching devices to provide means for adjusting the distances between the punches. I have herein disclosed one form of adjusting means as illustrated in Fig. 5.

Referring particularlyto this figure the base is provided with the standard? whicrerttends forwardly to provide a portion similar few number of with andv returning means ill?) plate to portion '13 in Fig. 3 to support a leaf spring. Such construction having been above described and being of purely mechanical nature has not been illustrated in this figure. The preferred form for disclosing the 1.{ justability herein is shown as providing two standards 21 upon which are mountedadjustably two

guides

22 and 23. Set screws 24 are provided to maintain the

guides

22 and 23 in desiredlocations and if desired other means may be employed to accomplish this purpose. The dotted-lines onthe left of Fig. 5 illustrate a. position of guide QQ so that the punch therein will engage perforation 25 in the die plate. Liliei *ise this guide'may be moved so that it will permit the punch to enter perforation 26. The normal position of this guide is as shown in full lines so that the punch will enter

perforation Perforations

28, and 31 are formed in the die and are similar to

perforat ons

25, 26 and 27 and are employed for the adjustments of guide 3. It will be noted by reason of this simple form toprovide adjustment that by providing for instance guide 23 may e maintained in its normal position while guide 22 may be positioned in any one of the three perforations 25 to 27. Thus it will be observed that several combinations of difierent distances b I tween the punches may be readily obtained.

In various forms of satisfactory paper punches it may be desirable to obtain adjustment for the position or extent to which the paper may be inserted in the punch, there punched holes. In this instance, I have dis closed simple screws 32 of cam formation having the stems 33 of the screws located as shown in dotted positions. Any means may be provided for movement by the rotation of these cams 32 so thatthe paper may be ins rted into the punch only to the extent dered and as illustrated for example by lines 43. 25 and 36. It is usual in such cam formed screws to provide side way movement so that the adjustment may be properly obtained and provision, therefore, is shown in dotted lines about the dotted lines 33. The stems 33 cooperate with the base and frictionally hold the screws in position. As this construction is simple in its particular form and is within the scope of mechanical skill, there is only an outline made.

It will be understood, however, that it is my intention to provide some form of means forpermittingadjustmentfor the amount or of the paper in the punch.

In punches which provide adjustment for the width or distancesbetween the punches the spring holding and returning means may be formed in any desired manner, and I prefer to provide various holes in the spring and to. in ert the punches in these openings and prov .0 them with washers 37 s illustrated, for

instance, in Fig. 7 to maintainthe punches different margins for the extent of insertion in openings. This is a simple form of arrangement and will be readily appreciated by reference also to Fig. 6 which shows the center punch held by means of the washer 37. Also, if desired, the spring holding and returning means may take the form illustrated in Fig. 10 wherein slots are provided near each end and running longitudinally of the spring, for receiving and supporting the punches. The middle or central opening may be provided and used when there are three punches. \Vith the use of such a spring holding and returning means the punches may move along the slots so as to permit the

guides

22 and 23 to'be moved to their several adjusting positions.

In some forms of punching devices it may be desirable to provide more than two punches and I have shown in Figs. 6 and 7 the use of three punches supported and operated by a single leaf spring, In. such instances, there will be provided two slots 14. In these figures the middle punch is shown as being supported in the leaf spring by-means of the washer 37 as has been above described. It will be noted that the two endpunches are supported by reason of being inserted in the slots formed in the ends of the spring as described in connection with the holding of the punches illustrated in Figs. 1 to 4 in-' elusive. It isto be understood, however, that if desired holes may be provided instead of the slots. If desired two leaf springs may be employed with slots in the ends thereof. In such an instance, the middle punch would be he d by both springs.

In both of the forms of punches illustrated onlycut at'two points and will. then progressively continue until the paper is cut throughout the periphery of the punch as will be noted in Fig. 9-. The same result may be oba groove through the end of the punch so that the end is contoured to prox ide' engagement -with the paper at different points of the punch at the beginning and will then operate to progressively cut the paper.

In prior punch devices, each punch is. normally held in raised position by a helical lZO spring which also serves to-return the punch after operation thereof; The single leaf spring of the present invention serves also as a supporter holder for use in Withdrawing the punches from the guides in which the punches may be assembledor from assembling the punches before they are inserted in the guides. Another advantage of the leaf t ained by usinga flat die plate and by cutting a punch which is .springs is that, if they become bent in one dircction they may readily be turned over and used before.

Another advantage of the device results from the use of the short handle or striking plate disclosed herein which enables the device to be made in very compact form. This handle is so associated with the base as to prevent the unches and leaf springs in the device from fallin out and as to be easilv removable for various purposes such as removal and replacement of the punches and sprin s.

It will. be seen from the foregoing disclosures and detailed descriptions that 1 have provided a very simple and compact form of sturdy, and as designed there is a small cost of production or manufacture and so that assembly of the parts once completed will automatically be maintained, and so that the striking portion of the punch is maintained within the confines of the base. The adjustable ilfeatures of the punch are readily provided without material inooification of the parts of' the punch and in addition the single supporting means which also ope-rates to return the punches to normal position forms an advantageous p art to the-invention It will be understood that while I have here in described in detail a particular-embodiment of my invention for purposes of full disclosures, and some detailed features which I am specifically claiming for a special advantage, many changes and modifications may be made in the particular construction and arrangement of parts without departing 'from' which 1s outthe broad scope of my invention lined in the sub-joined claims.

Having thus described my invention, :iaim:

1. In a paper punching device, a base, a die plate assembled therewith, a plurality of punches adapted to cooperate with said die plate to punch holes in paper, a standard associated with said base, said standard being constructed to guide gle member for supporting said punches and returning said punches to normal position after operation. r

2. In a paper punching device, a base, a die plate EtSS-illllJlQtl therewith, a plurality of punches adapted to' cooperate with said die to punch holes in paper, a standard associated with said base, said standardbeing constructed to guide said punch-es, av single member for supporting said punches and for returning said punches to normal position after operation, and a striking handle positinned to bear directly on said punches.

8. In a paper punching device, a base, and

a T-shaped standard comprising a central portion connected at its rear with the base and a transverse portion at the forward end of the central portion, said transverse portion being provided with guides for punches.

said punches, and a 8111-" a. In a paper punching device, a base having at its front an opening across which a die plate is to be placed, said opening being provided with die plate supporting means around said openimg, and a lying the die plate opening and being provided with guide-ways for punches to cooperate with a die plate on said support.

5. In a paper punching device, a base, a standard connected with the base at the rear and having at its forward end a transverse portion provided with guide-ways for punches, punches inserted in said guide-ways from above, and a striking handle overlying said punches and pivoted on saidstandard, the striking handle and formed as to limit the upward movement of the handle and thereby prevent removal of the punches.

6. 7 standard connected with the base and having a portion thereof provided with guideways for punches, punches inserted in said guideova a, and leaf spring supported on said standardand having its their retracted positions.

7. In a paper punching device, a base, a standard connected with the base'at the rear and having at its forward end a transverse portion provided with guide-ways for punches, punches inserted in said guide-ways, and a leaf spring connected with said punches for holding them normally in retracted position and supported on 7 tion between said punches.

8. In a paper punching device, a base, a standard connected with the base and having a portion thereof provided with guide-ways for punches, punches inserted in said guideways, spring means for supporting the punches, and a striking handle pivoted on said standard and comprising a circular plate for engagement by the hand and positioned with its center substantially over line of the'punches. H

9. In a paper punching device, a base, a standard connected with the base at the rear and having at its forward end a transverse port-ion provided with guide-ways for punches, punches inserted in said guidaways from above, and a striking handle overlying said punches and the stri ring handle and standard being .so assembled as to limit the upward movement of the handle and thereby prevent removal of the punches, and arms extendin'gfrom said striking handle over said punches.

10. In a paper punching device, a die having a plurality of aligned openings, an ele ment spaced from said die and having a plu= rality of guideways to be in register T-shaped standard comprising a central portion connected at its rear standard being so said transverse porthe center pivoted on said standard,

In a paper punching device, a base, a i

ends connected 7 with said punches to hold the same normally 5 9.

lit) with said openings, punches in said guideways, and a leaf spring supported between said punches, said leaf spring and the punches being so formed that the punches may be as sembled with the spring and supported thereby for insertion in the guide-ways or withdrawal therefrom.

11.. Ina paper punching device, a die having a plurality of openings, an element spaced from said die and having a plurality of guideways to be placed in register with said openings, punches in said guide-ways and having reduced portions at the upper ends thereof,

and a leaf spring supported betweensaid punches and having openings to embrace. the

reduced portions of said punches so that in addition to'controlling thepunches in. the ordinary operation of the device the spring may serve as a support for the punches for withdrawing the same from the guide-ways.

12. In a paper punching device, a base, a die plate having aligned punch openings and curved downwardly on each side of the line through the centers of said punch openings, a

1 member spaced above said die plates and having guidewvaysin register with said openings, andpunches in said guide-ways adapted to cooperate with the die plate and to start the cuts at the high points of the die plate openings and then carry the cuts completely around said openings.

13. In a paper punching device, a base, a die plate assembled therewith, a plurality of punches, means associated with said base for guiding said punches, and a leaf spring enfront edge of said base.

15. In a paper punching device, a base provided with an opening, a die plate secured to said'base over said openingfand being provided with holes in predetermined positions to receive punches, a standard carried by said base and constructed to extend over said die plate, said standard being provided with punch guiding. portions, a plurality of punches adapted to be placed in said guide 7 portions and in alignment with the openings in said die plate, notches in its ends for receiving and'holding said punches and being positioned on a portion of said standard to thereby support said engage said punches, said striking platehaving a rounded portion the center of which falls in a line drawn between the said die plate.

ADO GLAESER.

a single leaf spring having openings in punches, an'da strikingplate pivoted to said standard and adapted to'extend forwardly to