US2116989A - Loose leaf binder - Google Patents

Description

May 30, E938. P. o. UNGER ET AL LOOSE LEAF BINDER Filed Nov. 26, 1934 A TTORNE Y.

Patented May 10, 1938 r 2,116,989

UNITED STATES PATENT oFF c'E Paul 0. Unger, Glen Ellyn, and Fred D. Wedge, Lombard, 111., assignors to Wilson-Jones Company, Chicago, 111., a corporationof Massachusetts Application November 26, 1934, Serial No."754,'186

2 Claims. (01. 129-4) This invention relates to a loose leaf binder, rality of prong members 8. The prong members and more particularly to an arch binder in which meet at their outer ends .when the toggle plates folded sheets or groups of sheets are retained by are in closed position to form arches. A cover means of wires positioned between the folded plate 9 is provided with downwardly bent edges edges of the sheets and the underside of a plu- ID adapted to embrace the edges 1 of the spring rality of arches. This type of binder is exempli back. The cover plate 9 is notched along its lonfied by the patents to McCleary Nos. 1,843,575 gitudinal edges, as indicated at H, to allow the and 1,843,608, both issued February 2, 1932. prong members 8 to project therethrough. The

Binders of this type have proved to be very arc of the prong members has substantially the successful in connection with pamphlets or groups same axis and is parallel to that of the cover of folded sheets but the field of use therefor has plate when in closed position. I been limited because the binder is not adapted to Each folded sheet I2 is provided with a plureceive single unfolded sheets. It is often desirrality of notches I3 adapted to straddle the able to insert single unfolded index or correction arches 8. A wire I4 is positioned inside the 5 sheets in a binder containing a plurality of pamfolded edge of the sheet and under the arches to phlets or groups of folded sheets, but heretofore retain the folded sheet in the binder just as in no binder of this type has been available in which conventional binders of this type. Unfolded such insertions can be made without necessitat sheets l5 are punched and inserted on the arches ing so much effort as to make the binder imprac just as in the case of conventional ring books.

0 tical for the intended purpose. Of course, the folded sheets with the wires posi- It is an object of this invention .to provide a tioned adjacent the folded edge may also be inloose leaf binder adapted to retain a plurality of serted on the arches when they are in open sheets either folded or unfolded. It is a further position. object of this invention to provide a loose leaf Apair of triggers I6 is provided at opposite ends binder particularly adapted to retain groups of of the metal to move the toggle plates to open and 25 folded sheets with means for permitting rap-id closed position. The specific structure of the and easy insertion of single unfolded sheets. It trigger constitutes the subject matter of a sepais a further object of this invention to provide a rate application, Serial No. 750,446 filed October binder of this type with a convenient accessible 29, 1934 in the name of Paul O. Unger, which ismagazine for carrying extra sheet retaining wires sued as Patent No. 2,056,812 on October 6, 1936. that will not interfere with the normal operation Accordingly, it is deemed to be unnecessary to deof the binder, and will not detract from the apscribe the trigger structure in detail in the present pearance of the binder. Other objects of this application. Any trigger capable of moving the inventionwill become apparent upon reading the toggle plates 6 to open and closed position may be ,5 following description taken in conjunction with used in the present structure. However, the trigthe accompanying drawing, in which ger must extend above the cover plate at least as Figure 1 is a perspective view of a loose leaf much as the arch members, in order to prevent binder embodying the invention with parts broken the accidental displacement of the sheet retaining away to facilitate illustration of the structure. wires. The preferred embodiment of our invene Figure 2 is a fragmentary View, partly in plan tion is shown with a trigger at each end. Howand partly in section, of the binder shown in Figever, it is obvious that a single trigger may be ure 1; and substituted, and one end of the metal may be Figure 3 is a cross sectional view taken along provided with any conventional closure that exthe line III-III of Figure 2. tends above the cover plate enough to serve as In the drawing, the reference numerals 2, 3 and a stop member for the ends of the sheet retaining 45 4 respectively indicate a back member and a pair wires. of cover members integral with the back member A tubular member I! is secured to the cover or secured to opposite edges thereof. A metal member 4 near its outer edge to provide a magaspring back 5 is secured to the back member 2 in zine for carrying extra sheet retaining wires i4.

any conventional manner. Two toggle plates 6 The magazine may be made of any suitable ma- 50 are positioned in the spring back in side by side terial. One end of the magazine is threaded, relation with their outer longitudinal edges reas indicated at I8, Figure 2, and is provided with strained from outward movement by the u a similarly threaded closure member I9. The turned edges 1 of the spring back. outer end 20 of the closure member I9 is prefer- Each toggle plate 6 has secured thereto a pluably knurled to facilitate turning thereof. Al- 55 though the magazine may be secured to the cover member 4 in any desired manner, it is preferred to enclose it in a strip of fabric 2| and to secure the ends 22 of the fabric strip under the lining member 23. If the cover member is not lined, the fabric strip may be sewed or cemented direct- 1y to the cover member. It will readily be seen from an inspection of Figure 3, that the magazine carrying the spare Wires cannot interfere with the normal operation of the binder.

Although we have described a preferred embodiment of our invention in detail, it will be understood that the description thereof is illustrative, rather than restrictive, as many details may be modified or changed without departing from the spirit or scope of our invention. Accordingly, we do not desire to be restricted to the exact construction described, except as limited by the appended claims.

We claim:

1. In a loose leaf binder, a plurality of sectional arch members, a plurality of folded sheets notched at their folded edges to straddle said arch members, a plurality of wires positioned within the folded edges of said sheets and under said arches to retain said folded sheets in the binder, and means at each end of said binder to prevent accidental longitudinal displacement of said wires, said last mentioned means being op- I erable to open said sectional arch members.

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