US1738572A - Paper punch - Google Patents

Description

Patented Dec. 10, 1929 r s'r ADO GLAESEE, 0F WOODHAVEN, NEW YORK, ASSIGNORTTO MODERN OFFICE DEVICES INC OF NEWYORK,'Nl 1., A CORPORATION OF DELAWARE rnrnn PUNCH Original application filed July 31, 1925, Serial No. 47,184. Divided and this application filed August '18 i927. Serial No. 213,718." s

This invention relates to means for punching paper and more particularly to means for punching sheets to prepa'rethem for filing in suitable binders or similar devices. This application is a division of my application S. N. 47,184, filed July 31, 1925. I

Feretofore'it has been proposed to provide punching devices each of which has a base and a die plate carried by the base and in having openings positioned in accordance with the spacing of the perforations to be made, punches to cooperate with the die plate, guides for the punches, separate helical 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 andeflicient means for punching sheets at the required points.

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

Other objects of the invention are to provide a device of this character adapted'for easy assembly and disassembly,f a device adapted for easy repair and replacement of parts, a device in whichthe die plate may readily be sharpened, andia device'provided with means forv adjustingthe depth to. which paper maybe inserted if desired. c

These and other objects of the invention maybe attained in the following manner.

According to the preferred embodiment of the invention provision is made of a "base having downwardly turned edge portions to hold the body thereby spaced froma support therefor having an opening across which a suitable-die plate may be secured. Mounted on the base is a T-shaped member oristandard having the upright portion thereof extending forwardly and the cross or top portion overlying the die plate so that punches slidably supported in such cross piece will register with the openings in the die plate. punches are connected with theends of a leaf Such spring preferably of steel supported at its center by an upward projection at the center of the cross piece of the T- This single spring serves not only to maintain the punches in raised position but to return the punches to normal position after operation thereof and thespring may also beused in removing the punches from the device or in bringing them into position for insertion in the guides there-- To operate the punches provision is made of a handle or striking plate pivoted on'the rearward portion of the T and having a substantially round portion preferably positioned centrally with respect to the die plate .65 and lateral extensions having portions on the.

lower faces thereof to engage the upper ends of the punches. The rounded head of the handle may be of considerable size to provide a suitable bearing surface for engagement or striking by the hand. It will be'evident that, j

with this arrangement of the handle a very compact form of the device will be obtained as there is no long extending lever required for operation. The connection between the handle and the T-shaped supporting member is such that the handle has limited upward movement and it serves to prevent the punches falling out of the device when the'latter is inverted. i

According t another embodiment of the invention, provision'is made of an adjustable spacing: or-gage to determine the depth to which'the paper may be inserted in the punch and of means for adjusting the distance'between the guides to space the punches as required. To correspond with such changes in the positions of the punches provisionmay may be extended in length to allow for adjustment of the punches, or the spring may be provided with holes at different locations so that the punches may be inserted. In this last instance, I have found it satisfactory to provide washersfto support" thepunches in the holes in the spring. Instead ofhaving w pun hes il y a lar numbe av be Provided and al ress may heflwa rolled by a single leafspring supported at suitable positions in the intervals between the punches.

1 The di plfitfi meyibe-flat andthepunehes' 1 may have circular ends, thus producing 1 uniform cutting action completely around the perforations in the .d'ief'plates. It. may, .how-

ever, bedesirableito start the cut at one or more points then "carry ;-it .complt-ly around the perforation thus giving aprogres- ,sive butting. To ,pro.du'ce"?suoh"eifectszluse Inlay-be madeof a die plate curvedupjwardly .froinits edgestdits central line, or :the ends of the .punchesmayihe cut .aivayso thaticer;

tainlpoi'nts thereof will engage the paper before others.

.Other features and advantages .will here- .inafte'rappear. Y 'In the 'draw'ings:m

Fig.1 is a .top plan view of a device embodying one formof theinvention; I

jFig. Qi's' a sectional front elevation of .the device .shown'in'Eig. 1;

.Fig. 3 is a vview in sectiontaken along the Figf l' is a view of aleaf 'sp ing for controlling thepun'c'hes'j V 4 :Fig. 5 is a {top plan viewof'a device embodying another form of'the invention;

Fig: 6' is an elevational view-"ofthre punches supported by'a'single spring; Fig. :Tis'a'top plan view'bf'a leaf spring having three punches combined therewith curved 'di e 'alatef Y Fig. 9 1s a View illustrating the operation Fig. .8 Ji's'a perspective .view showing a of a punch in connection with] the curved. die plate of Fig.8; and i Fig. "10 a top plain viewillustrating a resilient means such a spring, with islots in either'endfor holding-the'p'unches.

yA'ccording-to the embodiment-ofthe inven- 7 tion shown 'in Figs'l and 2,lthe device 'com prime astand having a-baseQ'spaced above means ofdownwardlyjturned' fiange'por ticns 3 and-having at its front an opening 4 over which is place'd' ad ie'platef), preferably of steel, and which may be secured position by suitable means'such' as screws 6. The

.stand also includes a -T-shaped member or I I) l V i standard havlng a rearward port on sup: 3

ported by the base 2 and extending forward to the 'crossdnember 8 which is" positioned abovethe die plate 5. The tlie plate i's pro': Vided with suitable openi n gsfi positioned to determine the desired location o-f the" per forations inthe sheets to be perforated, and V the cross member 8'is provided with cylindrical guideways 1O in v register with the openings 9 and designed to receive punches 5111139 cooperatewith the die plate 5. These punches 11' are normally held in'raised posr ably by? Ref r g miss .1. an pv r projection 1213 "of thefcross member 8. The

springis provided "at" itsfends with slots 1.4 toreceive reduced portions of the punches 11, "sueh reduced portions of the punches 11 being obt ined by f rmi g ci cular grooves-10f ,slightlygreater width than the thickness of the leaf spring. It will be evident that the punches-'11 and leafspringlZ may be assembled conveniently andthe'n brou ht into position withv the punches immediate; y above the'gu-ideways 10 and bjeloivferdinto the same thereby providing. simple assembly.

To depress the, punches 11 .provision is made ofa handle or striking plate 15 having .forkedlextens'ion to embrace the part of the T-shaped member and conn cted her with by means .ofa' pivot; usually in the form of a bolt-16 secured in position by a nut 1:6, the arrangement being such that Ithe upward .tion (Fig. 2) by any suitable means prefermovement of the- handle 1,5 is-limited by the 7V Figs. l'to 4, 1fhave showna.simple,,sturdy V alidwery satisfactorily operating punching device whichconsist's of'a few number of parts :that are automatically maintained in assembled position; llhis preferred punchingidevice-isof compact form and occupies very small space and does not T have i an extended lever which "is usual. with punches heretofore manufactured. An additional advantage is-thaftlie die plate may-be sharpened iif desired without removing the same from the-punch, althoughitis asimple 0p;- v

eration torem'ove the plate to recondition-the openings 9. It will also be noted-that with this preferred ty eot punchthei strike plate l5 hasits center-locatedjback of the front" edge of' the base or {it riday be said 'that 'the center is between the front and fear edges of the base so thatup'on strikifig the plate-"1'50? r the paper thereife i ddangei of thfpt neh supp; pg" eve-v; Eurther; "the of i the s ngle sfi portmg' and return'iiigineaiis for the punches is particularly beneficial in the normal operation of the punch,and such construction materially facilitates assembling and disassembling the smallnumber 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 particularly to this figure the base is provided with the standard 7 which extends forwardly to provide a portion similar 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 adjustability herein is shown as providing two standards 21 upon which are mounted adjustably two guides 22 and 23. Set screws 24 are provided to maintain the guides 22 and 23 in desired locations and if desired other means may be employed to accomplish this purpose. The dotted lines on the left of Fig. 5 illustrate a position of guide 22 so that the punch therein will engage perforation 25 in the die plate. Likewise 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 27. Perforations 28, 30 and 31 are formed in the die plate 5 and are similar to perforations 25, 26 and 27 and are employed for the adjustments of guide 23. It will be noted by reason of this simple form to provide adjustment that for instance guide 23 may be maintained in its normal position while guide 22 may be positioned in any one of the 3 perforations 25 to 27 Thus it will be observed that several combinations of different distances between the punches may be readily obtained.

In various forms of satisfactory paper punches it may be desirable to. obtain adj ustment for the position or extent to which the paper may be inserted in the punch, thereby providing different margins for the punched holes. In this instance, I have disclosed simple screws 32 of cam formation having the stems 33 of the screws located as shown in dotted positions. Any means may be provid ed for movement by the rotation of these cams 32 so that the paper may be inserted into the punch only to the extent desired and as illustrated for example by lines 34, 35 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, howthe width or distances between the punches the spring holdingand returning means may i be formed inany desired manner, and I prefer to provide various holes in the spring and, to

insert the punchesin these openings'and provide them with washers37, as illustrated, for instance, inFig. 7 to maintain the punches in openings. This is a simple form of arrangement and will bereadily appreciatedby reference also to Fig. 6 which shows the center punch held by vmeans of the washer 37.

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. .Withthe 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 ad'-' justing positions. I i

' In some forms of punching devices it may be desirable to providemore than two punches and I have shown in Figs; 6 and 7 the use of three punches supported andoperated 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'benoted that the two end punches are supported by reason of being inserted in the slots formed in the ends of the spring as described in con nection with the holding-of the punches illustrated in Figs. 1 m4. inclusive- It is to be understood, however, that if desired'h'oles may be provided instead of the slots. If desired two leaf springs may be employed'with slots in the ends thereof. In such aninstance, the middlepunch would be held by both springs.

In both of the forms ofpunches illustrated in Figs.,1 and 5, it may be desirable to arrange.

progressively continue until the paper is out throughout the periphery of the punch as will be noted inyFig; 9. be obtained by using a flat die plate and by cutting a groove through the end of the punch so that the v end is contoured, to provide engagement with the paper at different points Also, if desired, the spring holding and returning means may take the form illustrated in Fig. 10 wherein slots are provided near- The same result may 20 v v v w device from falling out and as to be easily so "pleted will automaticallybe maintained, and

. of the punch at the beginning and will then operate to progressively cut the paper.

l Inprior punch devices, each punch is normally held in raised position by a helical spring which also serves to return the punch after operation thereof. The single leaf spring of the present invention serves also as a support or holds for use inwithdrawing in one direction they may the punches from the'guide s in which the punches may be assembled before they are inserted in the guides. Another advantage of tending above said base and forwardly, a striker carriedwby said standard, a plurahty of punches adapted to cooperate with said .die to punch holes in paper inserted in said punch, a singleresilient means associated Wlth' said standard for supporting said punches, and pivoted adjustable guides for said punches for positioning the, same at'dlfi'erent ADO GLAESER.

distances apart,

handle is so associated with the base asto prevent the punches and leaf springs in the removable for various purposes such as resprings.

.. It will beseen from the foregoing disclosures and detailed descriptions that I have provided avery simple and compact formvof punchwhich is sturdy, and as designed there is a small cost of production or manufacture and so that assemblyof the parts oncecomso that the striking or tion of the punch is moval and'replaeement of the punches and maintained within t e confines o ffthe base.

V The adjustable features of the punch are readily providedwithout material modification of the parts of the puneh and addition the single supporting means which also eperates to return theflpuneheis'lto normal position forms an advantageous part to the invention.

It Will be understood that while I have herein' described in detail a particular embodiment o 'fmyinvention for purposes of full disclosures, an d some detailed features which-I am specificallyjelaiming for a s ecialadvantage, many changes. and imodi cationsmay bemade in the particular cQnStruction vand V aIrH-QQQ QQD of P t Wfihbllt departing from 3 claim:

'the broad scope of myinvention which is o tl ned n h sub-jo ne H ing the? d rib mr erenti I 1. In a paper punching device, a base, a

V plurality of punches, a -sin'gle member for r supporting said punches, pivotedadjustable guides for said punches, said guides adapted tobe swung about their centers 'to definite 'positions to thereb obtainidifierent distances between saidpunc es, means for Varying the "depth to which a paper maybe inserted in said'punchinjg device, and means cooperating v with said depth varying means and saidbase to maintain said depth varying means in ads justed positions, i

2. In a paper; unching device, a base, a die wee b ai a a s a en ra award,

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