US2091188A - Loose leaf binder - Google Patents

Description

' 37- c. v. ST. LOUIS 2,09 188 LOOSE LEAF B INDER Filed Oct. 51, 1954 IXVENTOR. 69,4245; M Jrlaws A TTORNE Y.

Patented Aug. 24, 1937 UNITED STATES PATENT OFFICE LOOSE LEAF BINDER Charles V.

St. Louis, Chicago, Ill., assignor to Application October 31, 1934, Serial No. 750,780

2 Claims.

This invention relates to loose leaf binders and more particularly to wire ring metals having more than two rings.

It is an object of this invention to provide means for reinforcing a wire ring metal to eliminate the possibility of displacing the wire from the cover plate. It is a further object of this invention to provide simple and efli-cient reinforcing means that will not necessitate the use of additional material. Other objects of this invention will become apparent upon reading the following description, taken in conjunction with the accompanying drawing, in which Figure 1 is a perspective view of a loose leaf binder embodying the invention;

Figure 2 is a perspective view of the underside of the ring metal of the binder shown in Figure l; and

Figure 3 is a cross sectional view taken along the line III-III of Figure 2.

In the drawing, the reference numerals 2, 3, and 4 respectively indicate a back member and a pair of cover members on opposite sides of said back member. The back and cover members may 2 be integral, or may be formed separately and hinged together in any suitable manner. A spring cover plate 5 is secured to said back member 2 by means of rivets or eyelets 6.

A pair of mating wire members 1 are positioned under the cover plate 5 with the sheet retaining prongs or ring sections 8 projecting through apertures 9. The structure of the wire members is conventional and therefore will not be described in detail. As seen in Figure 2, the

toggle connections l0 serve as reinforcement for the end rings so that the rings may be opened and closed without displacing the wire members. However, the center ring sections which are welded to members I do not have any such reinforcement, and any force applied to the center ring might displace the wires in proximity to said center ring so that the prongs of the center ring would not meet. This condition is particularly true in the case of student binders which are generally made very inexpensively. In most student binders the back of the binder can not ofier any substantial resistance to the displacement of the wires.

As seen in Figures 2 and 3, the lower edge of the side wall ll of the cover plate 5 is bent, as indicated at l2, on each side of the center ring, to fit snugly against the wire I in proximity to the center ring. The portions 12 of the side wall II will prevent vertical movement of the wire with respect to the cover plate. The cover plate 5 is provided with a plurality of short ribs or projections [3 which are spaced adjacent the wire I so as to prevent lateral movement of the wires.

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

I claim:

1. In a loose leaf binder, a pair of wire members, a pair of ring sections welded to said wire members, a cover plate fitting over said wire members, the edges of said cover plate being bent against said wire members, and imperfcrate longitudinally extending projections on said cover plate in proximity to said welded ring sections spaced from said bent portions a suflicient distance to receive said wire members snugly between said bent portions and said projections.

2. In a loose leaf binder, a pair of wire members, a pair of ring sections welded to said wire members, a cover plate fitting over said wire members, said cover plate being apertured to allow said ring sections to project thereabove, the edges of said cover plate being bent against said wire members, and a plurality of imperforate projections depending from said cover plate on opposite sides of said apertures and cooperating with said bent portions of said cover plate to form channel-like members adapted to snugly receive said wire members therein.

CHARLES V. ST. LOUIS.

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