Патент USA US2131401код для вставки
Sépt. 2.7, 1938. w. w. KAfRLEN COMBINATION SHEET FAS’I‘ENER 2,131,401 BAGKING SHEET Filed Oct. '7. 1935 K 5^ 4mvrsm'on. - Zfïï‘œzífzz «è BY 'à ‘ A ORNEY. Patented Sept. 27, 1938 A 2,131,401 UNITED STATESl 2,131,401 COMBINATION SHEET FASTENER AND BACKING SHEET Willis W. Karien, Vilas, S. Dak. Application October 7, 1935, Serial No. 43,969 8 Claims. tion sheet fasteners and backing sheet with the compressing bar plate removed. The principal object of my invention is to pro vide a means for detachably holding sheets such as sheets of paper that occupies a minimum of Fig. 3 is a cross-sectional View of one of my devices taken on line >3--3 of Fig. 1, and shows flat space when in use, thereby making for com one method of attaching the same to a backing UI 5 pactness, neatness, and the conserving of valuable file cabinet space. Since the paper backing or folders usually em ~ Fig. 4 is a longitudinal sectional view of my de ployed in filing correspondence and similar papers vice taken on line 4--4 of Fig. 1. ' struction in which the paper fastener is con structed to retain an offset in the paper backing and at the same time mount the paper fastener on the paper backing or folder without increas l ing the thickness or “build-up” of the folder be yond the combined thickness of the metal of the fastener and the paper. A still further object of my invention is to pro vide a paper fastener that may be easily, quickly, 20 and rigidly secured to its backing sheet, and when vice taken on line 8_8 of Fig. 7. and construction free from undesirable projec tions or sharpcorners that might accidentally ' Y . _ ' A still further object of my invention is to pro vide a combination backing sheet and sheet fastener that has certain depressions and/-or ridges in the backing sheet for engagement with 30 complementary elements or portions of the sheet fastener. 2U Sheet fasteners orl clasps used individually or catch or snare other items coming in contact it. , Fig; 9 is across-sectional view of my device taken on> line 9_9 of Fig. '7. once so attached has a smooth ñat appearance with Y Fig. 5 is a top plan view of o-ne of my sheet fas teners before attachment to a backing sheet or like. Fig. 6 is a side View of one of my sheet fas teners before attachment to a backing sheet or like. Fig. 7 is a top plan View of one end portion of my device with its bendable arm bent outwardly and with the compressing bar plate turned over from its position as shown in Fig. 1. Fig. 8 isa longitudinal sectional View of the de is soft and flexible and will not retain offsetting, 10 this invention provides a backing or folder con 25 sheet. ' A still further object of this invention is to pro vide a combination sheet fastener and backing in combination with backing sheets or folders are indeed well known as they are almost universally used in every voiîlce, kboth small or large, where it is desired to p-reserve and secure one or more sheets together. These clasps or fasteners, how ever, due to their bulky construction, add much to` the room required in the ñling cabinets and when 30 several groups of held sheets are piled up ver-A tically on a desk or like the stack is, highly un-l balanced and the attached sheets do not lie in sheet that is exceptionally strong in construction proper flat condition. Another undesirable fea 35 with certain portions of the sheet fastener self ture of such fasteners is their protrusions, espe- 30 centering with certain portions` of the backingv cially those on the outside of the folder, which are always >catching on other objects vand which sheet. . prevent the ready withdrawal or replacement A still further object of this invention is to pro vide a sheet fastener in combination with an, of the ñlefolders from or into the ñlingcabi 40 especially prepared file folder, file wrapper, back--> net. A still further objection to such fasteners is ing sheet, or like that is attractive in appearance, their tendency to tear loose from the folder or economical in manufacture, and durable in use. backing member to which they are attached. I ’I‘hese and other objects will be apparent to have overcome such objections as will be appreci- ' ated by those familiar with sheet fasteners. those skilled in the art. 45 Referring to the drawing, I have used the nu My invention consists in the construction, ar meral lil to designate the usual folder, file, back rangement and combination of the Various parts` of the device, whereby the objects contemplated are attained as hereinafter more fully set forth, 50 pointed out in my claims and illustrated in th accompanying drawing, in which: ' Fig. l is a top plan View of one of my complete combination sheet fasteners and backing sheet ready for use. 55 Fig. 2 is a top plan view of one of my combina ing sheet, `or like, of flexible material such as cardboard, stiff paper, etc. As is well known, paper fasteners are secured to such backing sheets and the sheets to be held are secured by the fas- Y tener to the front or face of the backing sheet. My method differsfrom the general custom of f construction and arrangement of parts, however, in that I especially prepareor construct the back ing sheet for the reception of the fastener. This 55 2,131,401 consists in embossing the backing sheet and piercing it. This embossed depression or recess is in the back of the backing sheet, as shown in Figs. 1, 2, 3, and 4, and I have designated it by CTI the numeral II. In this embossed depression II may be a longitudinal slot I2, as shown in Figs. 2 and 3. Near each end of the depression II is a slit opening I3. It is to such a prepared back incr sheet that I attach my sheet fastener and which I will now describe. ’ I have used the numeral I4 to designate the elongated comparatively flat base body portion of my fastener. This portion I4 has its corners rounded in order to eliminate any catching pro jections and has dimensions similar but slightly smaller than that of the dimensions of the em bossed depression I I. The reason for this is that this body portion is designed to- rest within the depression II of the backing sheet when on the` backing sheet. By such a construction the out side face of the body I4 will be substantially flush with the back outside face of the backing sheet. This provides a smooth, uniform surface over the back of the backing sheet. Y The numerals I5 and I6 designate the usual bendable arms extending from the two ends of the base I4, respectively. As is well known such arms extend through the backing sheet from its back side to detachably engage the sheets to be held. In the drawing, these arms extend through the backing sheet by passing through the two slits I3. The numeral I 'I designates a longitu dinal ridge extending down the center line of the base I4, When the sheet fastener is on the backing sheet this ridge I'I extends upwardly and into the slot I2 of the backing sheet. This ridge obviously strengthens the base bar I4 and aids I_n centering the sheet fastener properly on the backing sheet at time of installation. Any suitable means may be used to rigidly the two arms I5 and I6. Extending between these two slits 20 is a longitudinal trough 2|. Extending from each of the slits 20 to the ex treme end of the bar plate is a trough 22. The trough 2I is conversely arranged relative to the troughs 22 and when the arms I5 and I6 are bent inwardly as shown in Fig. 1, the trough 2l is exposed to receive them. However, when the arms I5 and I6 are bent out wardly as shown in Fig. '7, the plate I9 is turned over. in order that the troughs 22 will be exposed to receive the arms I5 and I6, respectively. When the fastener base is constructed' and mounted in the folder or backing sheet as shown in Figs. 2 and 5, the attachment of the fastener base to the backing sheet along opposite sides at spaced intervals throughout the length of the base of the fastener, provides such a connection between the fastener base and the folder; that in the use of the usual bendable sheet metal em 20 ployed for making fasteners, the bending of the fastener base in the use of the backing sheet with correspondence papers filed on the front face thereof, will not cause the central portion of the base oneither side to become separated from the 25 backing sheet so as to project rearwardly from the sheet and provide an objectionable projection at the back of the folder or backing sheet that will cause one set of bound papers when being placed in or removed from a ñle drawer'to catch on an 30. adjacent and similarly constructed set of bound papers. 'I'he manner of securing the fastener base to the backing sheet therefore retains inti mate contact between the backing sheet and the fastener base throughout its length and around its 35 entire margin and with particular reference to the construction shown in Fig. 5, the extension of the prongs through the backing sheet from the back to the front and then outwardly over the front face of the backing sheet provides a particu 40 larly desirable construction because where there is any tendency for any part of another folder or secure my sheet fastener portion to my backing sheet, although it is understood that in some . fastener to catch on the fastener base, the secur instances it may not be desirable to so perma ing projections will help to guide such other nently secure it. In Fig. 2, I sho-w the base bar I4 secured by the conventional burr rivets I8. These burr rivets are each formed in the bar I4 by cutting a cross, bending the resulting four prongs upwardly, having them pierce the back ing sheet, and then riveting them. When riveted they add no additional thickness, but do rigidly secure the sheet fastener to the backing sheet. In Figs. 3, 5, and 6, I show the bar I4 secured by fastener over the rear smooth face of the fastener 45 and folder. In this way the likelihood of one backing sheet and one thickness of the sheet metal forming the fastener in securing the fastener to tongues or prongs I8’ formed on the side mar the backing sheet or folder. gina] edges of the bar I4 and designed to pierce and clamp onto the backing sheet. When plac ing the bar I4 these prong projecting tongues may be bent upwardly to pass through the back ing sheet and then bent outwardly, as shown in 60 Fig. 3. When these members I 8’ are bent out wardly they not only provide a very flat con struction, but tend to maintain the embossing. From the above it will be seen that I have provided a very thin combined sheet fastener and backing sheet, as the ridge I‘I merely comes to the upper embossed surface of the backing sheet as shown in Fig. 3. The sheets to be held are threaded onto the arms I5 and I6 in the usual manner. They may be bent inwardly as shown 70 in Fig. l, or bent outwardly as shown in Fig.- 7 . I have provided a novel compression bar plate I9 that may be used with the device when de sired and which lends itself to the bending of the arms I5 and I6 either outwardly or inwardly. 75 This bar plate has the usual two slits 20 to receive folder catching on another is substantially obvi ated. The outwardly extending projections ' of the structure, as shown in Fig. 5, effectively retain the embossment in the paper backing without increasing the thickness of the paper forming the . Some changes may be made in the construction and arrangement of my improved combination sheet fastener and backing sheet without depart ing from the real spirit and purpose of my inven tion, and it is my intention to cover by my claims any modified forms of structure or use of mechan 60 ical equivalents which may be reasonably included within their scope. I claim: ~ I 1. In combination with a backing sheet element having an embossed depression and an elongated 65 slot opening extending through it and communi eating with said embossed depression, a sheet fastener comprising a base portion, a ridge por tion on said base portion extending into and en gaging said slot opening in said backing sheet ele ment, and a sheet engaging means on said base portion. . 2. In combination with a single backing sheet element having an embossed depression in one of itsv sides and an opening extending through it> and 70 3 2,131,401 communicating with said embossed depression, a sheet fastener comprising a base element resting in said embossed depression, a projection on said base element extending into said opening in said backing sheet element, and bendable arms on said base element extending through said backing sheet element. 3. In combination with a single backing sheet having a depressed area portion and an elongated 10 slot opening extending through it and communi cating with said depressed area portion, a sheet fastener comprising, a base portion, a ridge on said base portion extending into and engaging said slot opening in said backing sheet, bendable mem 15 bers on said base portion extending through said backing sheet for holding said base portion in said depressed area portion, and bendable sheet en gaging arms on said base portion. 4. A paper filing device, comprising a backing 20 member formed of a single sheet of material, a section of said member being offset to one side thereof and forming a recess in the opposite side, a bendable prong fastener formed of sheet metal having a base portion seated in said recess against 25 said section, retaining projections on said base portion extending outwardly therefrom through said sheet at the juncture of said section with the remainder of said sheet with the ends overlying the opposite face of the sheet beyond said section 30 for retaining said base portion in said recess, and bendable prongs on said base portion extending through said sheet of material for impaling papers on the opposite side of the backing mem ber, whereby the composite thickness of said de 35 vice at any point does not exceed that of the paper sheet plus the thickness of the metal form ing said fastener base, and said offset section co operates in facilitating the mounting of said fastener base on said sheet and provides a smooth back surface on said backing member to prevent catching of papers and fasteners when one device is slid over another. 5. A paper filing device, comprising a backing member formed of flexible sheet material, a sec tion of said member being offset to one side member formed -of flexible sheet material,a sec tion of said member being offset to one side thereof and Vforming a recess in the opposite side, a bendable prong fastener having a base en gaged in said recess with bendable paper impal ing prongs extending` through said backing member for impaling papers on the side opposite said base and projections at spaced intervals around the edge of said base extending outwardly therefrom through and outwardly over the op 1o posite face of said backing member for securing substantially all» portions of said base against separation from said backing member and re taining said embossed portion in said backing member without increase in the composite thick 15 ness of said device at any point greater than one thickness of said backing sheet plus one thick ness Vof the material forming said fastener. 7. A paper filing device, comprising a backing member formed of sheet material, a section of 20 said material being offset to one side thereof and forming a recess in the opposite side, a bendable prong fastener having a base engaged in said recess with the margins of said base and the portions of said backing member connecting said 25 offset section to the-remainder thereof in con tiguous relation, a pair of bendable paper impal ing prongs on said base arranged one at each end projecting through said backing member for binding papers on the opposite side of said base, 30 and a plurality of projections spaced along each side edge of said base extending outwardly from' said base through the portions of said backing member connecting said offset section to the remainder thereof and outwardly, over the oppo 35 site face of said backing member beyond said offset section, for retaining said offset section in offset relation and intimate contact between said base and offset section throughout all por tions thereof. Y ' 8. A paper filing device, comprising a backing member formed of flexible sheet material, >and a 40 bendable prong fastener formed of bendable sheet metal having a base portion with one face engaging one surface Vof said backing member, 45 thereof and forming a recess in the oppositeV .bendable paper impaling means on said base side, a bendable prong fastener having a base portion, said backing member having a slot engaged in said recess with bendable paper im formed therein, an offset portion on said base paling prongs extending through said backing member for impaling papers on the side oppo 50 site said base, and attaching means extending> outwardly in opposite directions at the margin of said fastener base having cooperative engage ment with said backing member for securing said fastener base to said backing member to retain 55 intimate contact between all portions thereof and for also retaining said section in said offset relation without increasing the composite thick ness of said device at any point more than the - thickness of said sheet material plus the thick ness of the material forming said base. 6. A paper :tiling device, comprising a backing portion engaging in said slot, and a plurality'of projections on the side edges of said base por tion extending through said backing memberand 50 outwardly from said base portion over the oppo site face of `said backing member to retain all portions of said base in intimate relation with said backing member and prevent one device 55 from catching on an adjacent one', without in creasing the composite thickness of‘said device to an extent greater than the thickness of said sheet metal plus the thickness of said sheet ma terial. 60 WILLIS W. KARLEN.