US1989918A - Staple remover - Google Patents

Description

' Feb. s, 1935;

w. DRYPOLCHER- STAPLE nmlovsa Filed April 28, 1933 1 ll l I Patented Feb. 5, 1935 I it I UNITED STATES PATENT OFFICE."

William Drypolcher, Valley Sh-eam, N. Y., assignor to Markwell Mfg. Co. Inc., New York, N. Y.

. Application April as, 1933, Serial No. 668,331

12 Claims. (01. 254-28) There have been in use for many years maonly inconvenient, but rumples the material, parchines which drive a wire staple through mateticularly if it happens to bethln paper. rial and then clinch the staple by bending the It is a purpose of this invention to provide a legs inwardly toward each other and then subnew and improved method of removing staples stantially flat against the under surface of the from material which has been fastened together 5 material which has been stapled. At times, itby this means. becomes necessary or desirable to remove these I i a fur h r je t 01 h inv p so-called clinched staples from the material withvide an arrangemen 0! he typ s ri whi h out damaging said material. In the past, this has been simplified and which is inexpensive to has been accomplished at times by first trying to m ml fl lir lift up the clinched ends of the staple with finger A till furth r ob ect i to p v d a device nails and then, still using the finger nails, pull which has been i e o e sp ifi purp se the staple through from the other side. Needless described and does not therefore is merely to say, this has resulted not only in broken finger cf D 1 1 h dle with attachments fastened to nails, but occasionally in personal injury. 15

Recent developments for removing staples have Addiiicncl advantages of h invention w embodied the use of a wedge which is inserted be clearly p en fr m h f ll wins cripunder the cross-bar of the staple. Thisis not lion together w the c mp nyin drawin always satisfactory, as a wedge frequently rips the which forms a P Of this pp nmaterial, I One form of the invention is illustrated in the 20 Other devices comprise pliers of various types accompanying drawing of which which operate by first inserting a form attached to. Figure I is a P n V w 1 h devi It is esthe pliers under the cross-bar of the staple and sentiauy simplified Plicr arrangement in which t having auxiliary means, also attached to thetwo main pieces forming the plier are pivoted the pliers, which raise or slide the staple over the t0 each ther but do 110i? cross each other- 25 form depending on the side edges of the form to Figure 11 is an open Staplestraighten out the legs of the staple so that the Figure m c e clinched staples auxiliary means may proceed further, lifting the Figures Iv i v are Views showing the device now-opened staple out of the material. in It has been found that if a device somewhat In Figure both of the handles are substan' 0 similar to an 'ordmary pair scissors is inserted tially alike. Both of these handles 1, have openunder the cross-bar of the staple and the blades mas the fingers memence in handing then separated, as soon as the sides of the blades the device- They are pivoted at and the handle hit the legs of the staple the outward pressure section held apart by a spring that the device 'exerted' tends to straighten out the legs of the is always kept refi'dyto whereas the handles 35 staple suillciently so that continued spreading are one side of the Pivt arrangement motion 'detaches the staple from the material. the working part of the device is the Opposite Furthermore, if one of the legs of the staple side of the pivot This working part we Shall indicate as the split tongue 5, and each of the 2333s :gfggg; g g gf gg gx gfgg' gi f g side pieces composing the split tongue 5, we shall 40 call the prongs 6. The forward end of the split the leg being drawn mm This is tongue 5, is shaped so that the entire forward secl' the with types staple tion is thinned down. This is the part which is v on the market because if device is used intended to be inserted under the cross-bar '7, of

at a slight angle one leg is sometimes drawn O the staple. It will also be noted that the outside without trouble, but the other leg remains emedges f each f the prongs 6, particularly at the bedded in the material with the result that the forward part, are rounded off so as to provide for Operation m e p d to om y remove easy insertion under the cross-bar '1. On the the staple. other hand, this inserted edge should not be so Some type of staple removers are merely pliers sharp as to possibly cause injury. In Figures IV 60 with attachments added to them to perform sepand V, we see the prongs 6, of the split tongue arate functions. The shape of the plier handles 5. underne th th r a '7. p s in inst on these machines is generally such that the hand the side legs 8, of the staple and partially straight- 'gripping these handles scrapes the material durening them out and on the point of completely ing the operation of the device. This is not extracting the Staple from the material.

It will be understood that there may be slight changes made in the construction and the details of my invention without departing from the field and the scope of the same, and I intend to include all such variationsas fall within the'scope of the appended claims of this application in which the preferred forms only of my invention are discussed.

I claim:

1. A staple remover comprising two pivoting arms assembled together so that one end of the assembled arrangement acts as a pair of handles,

the other end as a pair of prongs, the verticaledges of said prongs being substantially parallel when prongs are adjacent to each other but converging toward the pivoting point of the arms when said prongs are separated.

2. A staple remover comprising two pivoting arms assembled together so that one end of the assembled arrangement acts as a pair of handles, the other end as a pair of prongs, the vertical edges of said prongs being substantially parallel when prongs are adjacent to each other but converging toward the pivoting point of the arms when said prongs are separated; said prongs being insertable under the cross-bar of the clinched staple, the clinched legs of the staple being at least partially opened by the spreading apart, when pressure is applied on the handles of the plier, of that part of the plier which is inserted underneath the cross-bar of the staple.

3. A staple remover comprising two pivoting arms assembled together so that one end of the assembled arrangement acts as a pair of handles, the other end as a pair of prongs, the vertical edges of said prongs being substantially parallel when prongs are adjacent to each other but converging toward the pivoting point of the arms when said prongs are separated, said prongs being insertable underneath the cross-bar of a staple clinched through material and removing clinched staple from the material by the divergent action of the prongs which spread apart from each other with a motion substantially parallel to the surface of the material.

4. A staple remover comprising two pivoting arms assembled together so that one end of the arrangement acts as a pair of handles, the other end as a pair of prongs, the vertical edges of said prongs being substantially parallel when prongs are adjacent to each other but converging toward the pivoting point of the arms when said prongs are separated, said prongs having thin leading edges to provide for easy insertion beneaththe cross bar of a staple.

5. A staple remover comprising two pivoting arms assembled together so that one end of the arrangement acts as a pair of handles, the other end as a pair of prongs, the vertical edges of said prongs being substantially parallel when prongs are adjacent to each other but converging toward the pivoting point of the arms when said prongs are separated, said prongs having substantially parallel top and bottom surfaces so as to provide for effective positioning of the prongs beneath the staple crown prior to removing the staple from its clinched position.

6. A staple remover comprising two pivoting arms assembled together so that one end of the arrangement acts as a pair of handles, thelother end as a pair of prongs, the vertical edges of said prongs being substantially parallel when prongs are adjacent to each-other but converging toward the pivoting point of the arms when said prongs are separated, said prongs having means to act as a stop for the staple crown during positioning of the prongs, this means being intended to maintain the staple at an effective distance from the pivoting point to provide for easy removal of the staple.

'7. A staple remover comprising two pivoting arms assembled together so that one end of the arrangement acts as a pair of handles, the other end as a pair or prongs, the vertical edges of said prongs being substantially parallel when prongs are adjacent to each other but converging toward the pivoting point of the arms when said prongs are separated, said prongshaving substantially parallel top and bottom surfaces extending backwards to a definite point at which point a portion of the upper surface is raised abruptly to act as a stop for the staple crown during insertion of the prongs so as to maintain the staple at an effective distance from the pivoting point to provide for easy removal of the staple.

8'. A staple remover in which two arms are pivoted to each other, one end of the arrangement acting as a pair of handles, the other end acting as a tongue, said tongue having a top surface which is substantially parallel to the cross bar of the staple and to the top surface of the material as well as to the bottom surface of the tongue, said tongue being insertible under the cross gar of a clinched staple to remove said staple by the action of the tongue against the side legs of the staple, the vertical edges of said tongue being substantially parallel when closed in position but converging toward the pivot point when the handles move toward each other.

9. A staple remover in which two arms are pivoted to each other, one end of the arrangement acting as a pair of handles, the other end acting as a tongue which is insertible under the cross bar of a clinched staple to remove said staple by the action of the tongue against the side legs of the staple, the motion of the tongue being in a plane parallel to the cross bar of the staple and in or parallel to the plane including the cross bar and the legs of the staple, the ver-- tical edges of said tongue being substantially parallel when closed in position but convergingtoward the pivot point when the handles move toward each other. 1

10. A staple remover in which two arms are pivoted to each other,-one end of the arrangement acting as a pair of handles, the other end acting as a tongue, said tongue being insertible under the cross bar of the staple and being made to act against the side legs during which {action the motion of the tongue is parallel in direction to the surface of the material into which the staple is driven, said action thereby removingthe staple from the material into which .it has been clinched, the vertical edges of said tongue being substantially parallel when closed in position but converging toward the pivot point when the handles move toward each other.

11. A staple remover in which two arms are pivoted to each other, one end of the arrangement acting as a pair of handles theother end acting as a tongue which is' insertible under the crossbar of a clinched staple toremove said staple by the action of .the tongue against the side legs of the staple, the motion of the tongue being substantially parallel in direction to the length of the cross bar of the staple, the vertical edges of said tongue being substantially parallel when closed in position but converging toward the pivot point actinzasapair of handles, the other end actln: .as a pair 0! prongs which is insertible under the cross bar of a clinched staple to remove said staple by the action of the prongs against the side legs otthe staple, the motion of the prongs being in opposite directions away from each other and in a plane parallel to the surface of the material, the vertical edges parallel when closed in position but converging were the v t p int when the ma s ge toward each other. 7

WILLIAM DRYPOLCHER.

of said prongs being substantially

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