US2124282A - Loose leaf book binders - Google Patents

Description

July 19, 1938. E. E. H. BEHNKE LOOSE LEAF'BOOK BINDERS Filed March 24, 1937 Patented July 19, 1938 UNITED STATE PATENT OFF EverettE. H. Behnke, Manitowo c Wis-.Qass'ignor] to The, E. and.B., Manitowoe, Wis.

Application March .24., 1937, Serial o; 132mm My invention refers toloose-leaf binders, and it has for its object to provide a simple, economical, and effective metallic clip unit, a plurality of which are utilized to bind together loose 5 leaves, and in some instances a cover, the leaves and cover having the usual plurality of perforationsat their binding edges for the reception of the individual clips.

Another object of my invention is to provide a pair of legs extending from the clip with means for locking the same together after the clips are threaded through the perforations of the leaves.

Anotherobject of my invention is to provide the clip leg of different lengths, whereby the longer leg may be folded over its companion leg sectionalelevation of a book or catalog, theleaves and cover of which are bound together by a clip embodying the features of my invention.

Figure 2 is a plan view of the same, with one of, the back covers folded open, and one of the clips being illustrated partly in section, as indicated by line 22 of Figure 1.

Figure 3 is a diagrammatic sectional elevation of one of my clips, illustrating in connection therewith a plurality of leaves and covers in the process of threading or binding the same.

Figure 4 is a perspective view of one form of the clip unit.

Referring by characters to the drawing, Figures 1 and 2, |-l indicate a cover, and 2 a plurality of leaves fitted therein. The cover, as illustrated, is in one piece, and folded upon itself over the binding edges of the leaves. The cover is provided with a plurality of alined apertures 3-3, and the leaves are also provided With apertures 4-4 at their binding edges. While these apertures are shown or illustrated as round, obviously their formation and shape may be varied indefinitely.

A circular loop 5 of the clip extends through of leaf perforations.

the two seriesfof perforations, and the base portion of said loop is trained around the binding edges ofboththe'v cover and leaf, the same extending outsideofythe cover, as shown. The clip, as illustrated, is"v formed from a fiat metal ribbon, preferably with rounded-edgeaas indicated at X Figure-2, wherebyyliability of snagging the leaves maybe avoided. The loop 5 of said clip terminateswith a short leg 6, and a, slightly longer leg 1. After the loop .is threaded through the book, the legs are'brought together, and the end 1 of the longer leg is folded over the end of the shorter leg, whereby a permanent binder lock is effected. Obviously, in assembling the book or catalog for the purpose of binding with my clip, the said clips may be correctly spaced in a template of any desired formation to correspond with the distance between the series As illustrated in Figure 3, the legs being initially spaced apart, as shown, the first cover section is threaded into the clip loop by means of the shorter leg 6. In this particular instance, the covers are illustrated as separate elements, and hence the first cover element is threaded into the loop, and thereafter the desired volume of leaves are threaded into the loop. After the first clover section and leaves are assembled, the next cover section is threaded upon the opposite leg I, it being noted that the end 1' is disposed at a slight angle extending in the direction of the shorter leg 6.

The leg end 1 constitutes a lip, which is normally positioned at a slight angle to its associated leg proper, within a line of fold is sharply defined, and this line of fold is approximately equal to the full width of the companion short leg 6. Hence, it will be seen that the leg end I will fiex about the fold line upon folding the leg end 1 to clamp the pair of legs together, and insure uniform clamping of the extension I with relation to the pair of legs to bind the same. Obviously, when it is desired, this fold section or end 1 can be straightened or bent out, whereby the union as a whole can readily be removed from the gang of leaves.

Hence, after the final cover element is adjusted in position, the clip legs are brought together, and the extension I of the longer leg is then folded over the end of the shorter leg to form a permanent binder, this fold being effected by f any suitable compressing tool.- In practice, a tool may be used which will simultaneously fold the entire series of clip legs in a single operation. It is also understood that the clips may bemade of spring metal, in which instance the terminal legs may be normally held together, and thereafter spread for the purpose of threading said clip as a binder element for the group of the perforated sheets. It is understood that this binder may be used in connection with any form of book or catalog, and the leaves, if desired, can be removed by opening up the folded lock between said legs.

In some instances it is Within the scope of my invention to form the clip units from a wire strand round in cross section, in which instance the terminals of the legs may be flat for the purpose of effecting a lock.

In practice I have found that the most desirable metal for use in connection with the clips is aluminum, but, obviously, they may be formed of any other suitable material, and owing to the fact that these clips are formed from a continuous strand or ribbon, it is manifest that cheapness in manufacture would result. Any suitable cutting and forming machine may be employed for cutting and stamping the clips into proper shape by practically a single operation.

As shown in Figure 1 of the drawing, the last cover element is indicated in dotted lines as be ing folded back or open, and, obviously, the leaves will also readily fold back upon the cover, whereby any desired leaf is readily accessible. Particu lar attention is called to the fact that owing to the loop arrangement, the leaves sliding back over said loop will form a fiat, open book.

7 varied indefinitely as to width.

While I have shown and described certain forms of my invention minutely as to detail, it

- is understood that I may vary the structural features within the scope of the claim.

I claim:

A loose-leaf binder clip unit comprising a metal loop terminating with companion legs, one of said legs being formed with a foldable extension positioned at an angle to the main portion of the leg whereby the line of fold is positively defined at the end of the pair of legs proper, the legs of each independent clip being adapted to pass through alined apertures of book sheets and thereafter locked together by folding the end extension of one of the legs about the end portion of the companion leg.

EVERETT E. H. BEHNKE

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