US1569005A - Loose-leaf binder - Google Patents

Description

Jan. 12 1926. 1,569,005

.1. c. DAWSON LOOSE LEAF BINDER Filed Sept. 16 1924 2 Sheets-Sheet 1 I zal'gni' v Inventor.- Jaime; Cfia'zason Jan. 12 ,1926. 1,569,005

J. c. DAWSON LOOSE LEAF BINDER Filed Sept. 1 2 2 Sheets-Shasta [922/092 601-: JZrm e,s (5 Ja wp'm Patented Jan. 12, 1926.

" UNITED STATES JAMES C. DAWSON, OF WEBSTER GROVES,

MISSOURI, ASSIGNOR TO ELMA N. DAWSON,

OF WEBSTER GROVES, MISSOURI.

LOOSE-LEAF BINDER.

Application filed September 16, 1924. Serial No. 738,022.

To aZZw/wm it may concern:

Be it known that I, JAMns C. DAWSON, a citizen of the United States, and resident of Webster Groves, county of St. Louis, and State of Missouri, have invented certain new and useful Improvements in Loose-Leaf Binders, of which the following is a specification, and which are illustrated in the accompanying drawings, forming a part thereof.

This invention relates to loose leaf binders of the type disclosed in my application, S. N. 623,690, filed March 8, 1923, of which this is a division in part.

One of the objects of the invention is the provision of new and improved means for automatically holding the paper engaging prongs in either open or closed position.

Another object of the invention is the pro. vision of a new and improved method of, and means for, assembling the parts of the binder.

Other objects of the invention are the pro vision of new and improved loose leaf binder mechanism that is cheap to manufacture, easily assembled, simple in construction, and that is not likely to become broken or get out of order.

Other and further objects and advantages of the invention will appear from the following description taken in connection with the following drawings, in which Fig. 1 is a bottom plan View of a loose leaf binder mechanism showing the parts in partially assembled relation;

Fig. 2 is a plan view of the loose leaf binder in position in a cover, with parts broken away;

Fig. 3 is a similar view showing a finish ing strip in position thereon;

Fig. 4 is a perspective view of the finishing strip;

Fig. 5 is a detail view showing one of the clips; 1

Fig. 6 is a view similar to Fig. 1, but showing a modified form of the construction;

Fig. 7 is a plan view of a modified form of the device, showing the same in position on a cover, with parts broken away;

Fig. 8 is a section on line 8-8 of Fig. and

Fig. 9 is a similar section, but showing the paper holding prongs in closed position.

On the drawings, the reference characters 10 and 11 designate two bars or rods which may be more or less resilient. The rod 10 is formed at its ends into short, rigid arches 12 and 13. The ends of the rod 10 adjacent the arches terminate in laterally extending paper holding prongs 14 and, 15 which are.

preferably curved, as shown on the drawing. The rod 11 is provided with short rigid arches 16 and 17 which are adapted to cooperate with the corresponding arches 12 and .13 respectively of the rod 10 for forming toggles as willpresently appear. The ends of the rod 11 terminate in paper holding prongs 18 and 19 that are adapted to cooperate with the prongs 14 and 15 to form a paper retaining ring, of any approved construction. i

If desired, the'rods 10 and 11 may be duplicates of each other, thus simplifying the construction and assembly of the parts. It is understood, however, that the construction of the rods may be otherwise.

Suitable means are provided for forming bearings at the base portions of the arches of the rods, whereby when the rods are assembled with the arches of one opposed to the arches of the other, the arches will pivot to form toggles. In the form of the device shown in Figs. 1 and 2 the bearings are in tegral with the rods and in this construction the arch 13 of the rod 10 is provided at its base or base portions with lugs or projections 21 and 22 which are adapted to engage corresponding recesses 23 and 24 at the bases or base portions of the arch 17 of the rod 11.

The lugs and recesses are reversed at the other ends of the rods, as clearly shownin Fig. 1 of the drawings. For convenience of description the bearings 22 and 24 formed by the outer base-portions of the arches will be termed the outer bearings, and the bearings 21 and 23 the inner bearings.

The lugs 22 and recesses 24 at the outer ends of the rods are preferably slightly out of alinement with the lugs 21 and recesses 23 forming the inner bearings of the toggles, so that in assembling the parts, as shown in Fig. 1, the inner hearings will first-come in contact with each other and act as fulcrums thereby causing an arching or bowing of the central portions 25 of the rods 10 and 11 when the ends of the rods are forced together to cause the lugs or projections to engage the recesses 24. The arching or bowing of the I central portions 25 of the rods will afford resiliency to assist" in maintai'ning the toggles in open or closed position.

Suitable means are provided for holding the rods 10 and 11 in assembled relation. In the form of the device selected'to illustrate one embodiment of the invention, sheet metalclips are employed for this purpose. Preferably there are as many clips employed as toggle joints. Each clip 26, see Fig. 6, comprises a base" portion 27 provided with curved side portions 28qand 29' that are the clip be resilient provided the arched ends of the rods be so constructed or bent that the lugs 22 do not engagethe bottoms of the recesses 24 when the toggles are at either side of dead center, whereby when the toggles are operated thelugs 22 will be forced farther into'the' recesses 24, thus causing the body portions 25' of the rods to spread apart, thereby furnishing the necessary resiliency to hold the prongs in either open or closed position.- As shown in Figs. 1 and 2 of the drawings, the clips are also resilient.

In assembling the parts, the rodslO and 11'- are brought together with the lugs or projections 21 in engagement with the recesses 23 after which the clips are placed in position on the central portions of the rods and slid outwardly over the arches'to force the outer ends together tocause the projections 22 to loosely engage the recesses 24. Since the arches are rigid the forcingof the clips over the same will cause the central portions of. the rods to bow slightly apart, as shown in Figs. 1 and 2, thus placing them under tension to furnish the necessary resiliencv for operating the toggle joints. The clips are more or lessresilient and thus assist in holding the toggles in either adjusted position. The resiliency of the clips may be obtained by curving the body portion thereof as shown at 40, see Fig. 1.

While I have described the clips and'rods as both being resilient it is understood that the necessary resiliency may be obtained by either for holding the prongs in' open or closed position. A snappier action, however, may be obtained by forming both the rods and clips of suitable resilient material.

After the clips are slid in position over the toggles the attaching tabs 31 are bent downward as at 33 over the basesv of the paper holding prongs, for retaining the rods in assembled relation,=after which the device may be secured. to the back 34 of a cover 35 43 are provided with a slightly different form of hearing. In this construction,-the

base portions of the arches are provided with recesses which are adapted: to re'celve" pins 44'therein to form journals for the toggles. The outer ends of the arches being spaced further apartthan theirinner ends, the pins 44 may be easily and readily assembled in position, aswill be evident from an inspection of Fig. 6.

The form of the'device shown inFigs. 7 S'and 9 diflers from that shown in Figs. 1 to 5 in that the crowns of'th'e arches'45 and 46 of the rods 47 and 48 areflat, thereby forming a longer bearing surface for engaging the clips 49. The clips 49-difier from those described above in that they are provided with notches 51 for engaging the paper holding prongs 52 and-53,011 the rods 47 and 48. The clips 49 are attached to-th'e back 34 ofthe cover 35 by fastening means 54 in substantially the same manner asithe' clips 26 in Figs. 1, 2 and 6, inclusive.

It is thought from the foregolng, taken in connection with the accompanying drawings, that the construction and operation of.

mydevice will be apparent to those skilled in the art, and that various changes in size, shape, proportion anddetails of construction may be made without departing. from the spirit and scope of the appended claims.

I claim as my invention:

- 1. In combination, a palr of resilient rods,

each formed at each end into a short rigid arch and a curved paper-holding prong, co-v operating bearings at the base of each arch, the outer bearings of the arches ofeach; rod being out of alinement with the inner bearings thereof, said arches forming atoggle at each end of saidrods and means for holding said hearings in engagement whereby the resiliency of the rods between said toggles will retainsaid prongs in eitheropen or closed position through the action of said toggles.

2. In' a loose leaf binder, a. resilient rod terminating at each end in paper holding prongs and formed into an arch ad acent to each of said prongs, the bases of said arches forming bearings and the outer bearing of each arch being in the plane of the arches and out of alinement wit-h the inner bearings of saidarches.

In a looseleaf bindeigthe combination of a pair of rods each formed into a short rigid arch at each end thereof and terminating in paper holding prongs, said arches extending outwardly and forming a toggle at each end of the pair of rods and means for resiliently retaining said prongs in either open or closed position through the action of said toggles.

4. In combination, a pair of resilient rods, each formed at each end into a short rigid arch and a curved paper holding prong, cooperating bearings at the base of each arch, the outer bearings of the arches of each rod being out of alinement with the inner bearing s thereof, said arches forming a toggle at each end of said rods andmeans cooperating with the resilient portions of said rods for holding said prongs in either open or closed position.

5. A method of assembling a pair of loose leaf binder rods having toggle arches formed therein, which consists in arranging said rods with the arches of one rod opposite those of the other, placing a clip on the inner portions of a pair of arches, and forcing the same outwardly over said arches.

6. A method of assembling a pair of loose leaf binder rods having toggle arches and paper holding prongs formed thereon, which consists in arranging said rods with the arches of one rod opposite those of the other, placing a clip having an attaching tab on the inner portions of the pair of arches, and forcing the same outwardly over said arches, and offsetting said tab over said prongs for holding said rods in assembled relation.

7. In a loose leaf binder, the combination of a pair of rods each formed into a short rigid arch at each end thereof and terminating in paper holding prongs, said arches forming a toggle at each end of the pair of rods and resilient clips for holding said rods in assembled relation and for retaining said prongs in either open or closed position through the action of said toggles.

In testimony whereof I aifix my signature.

JAMES C. DAVSON.

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