US1524303A - Loose-leaf device and method of assembly - Google Patents

Description

Jan, 27. 1925. 1,524,303

G. w. NEWMAN LOOSE LEAF DEVICE AND METHOD OF ASSEMBLY Filed Sept. 20, 1924 Georye Washin mnA/ewm Patented Jan. 27', 1925.

PATENT OFFICE.

UNITED STATES GEORGE W'ASHINGTON NEWMAN, OF CHICAGO, ILLINOIS, ASSIGNOR TO WILSON-JONES LOOSE LEAF 60., OF CHICAGO, ILLINOIS, A CORPORATION O'F MASSACHUSETTS.

LOOSE-LEAF DEVICE AND METHOD OF ASSEMBLY.

Application filed. September 20, 1924.

To all whom it may concern:

Be it known that I, GEORGE VVAsI-IINd TON NEWMAN, a citizen of the United States, and a resident of the city of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in a. Loose-Leaf Device and Method of Assembly; and I hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the numerals of reference marked thereon, which form a part of this specification.

This invention relates to a loose leaf device and the method of making the same and concerns itself primarily with the means and manner of securing the rings to their supports.

In the past it has been customary in the construction of such devices toprovide suitable slots in the toggleplates or base plates that sustain the rings, and provide tongues upon the rings for extending through the slots in such plates. These tongues would then be swaged over. In practice it has been found that ring hooks secured in such a manner would soon work loose. The metal ring plates are usually thin especially in small ring hooks so that the walls of the slots have little resistive power.

It is an object of this invention to overcome this defect by anchoring hooks upon their base plates so that the same will be firmly retained and not liable to work loose.

1th this and other objects in view which will become more apparent in the following description and disclosures this invention comprises the novel structure and combinations hereinafter described and more particularly pointed out and defined in the appended claims.

In the accompanying drawings, which illustrate a preferred embodiment of this invention and in which similar reference numerals refer to similar features in the different views:

Figure 1 is a plan view of a loose leaf holding device involving this invention.

Figure 2 is an enlarged side elevational view of one of the ring hooks.

Figure 3 is an enlarged front elevational view of one of the ring hooks. V

Figure 4 is an enlargedperspective and fragmentary view of one of the ring holding plates.

Serial No. 738,743.

Figure 5 is an enlarged elevational view of a ring hook inserted in a slot in the base plate.

Figure 6 is a View similar to Figure 5 showing the ring hook secured in the base plate.

Figure 7 is a part sectional and part eleva tion view upon an enlarged scale of the secured ring hook.

Figure 8 is a plan view of a ring hook holding plate.

Figure 9 is an enlarged sectional View upon the line 99 of'Figure 1.

As shown on the drawings:

The form of loose leaf holding device that is illustrated in connection with my invention consists of a pair of toggle plates 1 sustained by a resilient bowed plate 2..

Double headed rivets 3 connect the adjacent edges of the toggle plates. The invention concerns itself with the structure and method of securing the ring hooks which are designated by the reference a to the toggle plates, which are rather thin and hence can not afford a very solid foundation.

According to this invention, the base plates 1 for the ring hooks are provided with slots 5 which are preferably stamped therein in such a manner as to provide a depending lip 6 at one end of each slot which inclines forwardly. The ring hooks are provided at their base with a tongue 7 which is adapted to fit in such slots. This tongue is usually stamped or formed by flattening the outer portion of the. base of the ring. This stamping operation produces .a tongue which is slightly rounded at its front end or toe as indicated at 8, and which slopes at its heel 9 where it merges into the ring proper. One of the difficulties heretofore encountered existed in the fact that there was nothing to sustain the heel of the hook when assembled and nothing except the lateral swaged flanges to sustain the toe. Consequently the ring hook-s would soon work loose. According to this invention the tongues of the ring hooks are firmly anchored at the heel and toe, as well as upon the sides so that there is very little tendency for the hooks to work loose.

In assembling, the ring hooks upon a base plate, the tongues of the hooks are inserted in the slots, the tongues and forwardly inclined lips 6 are then simultaneously swaged over theback of the late the force applied to the inclined ilips has a considerable fo'r ward component which causes them to bite in the heels 9 of the tongues and flatten the same to provide an e'liici'cnt heel support as shown in Figure 6. At the same 'ti'me, the tongues are j ammedagainst the forward end of the slots thereby flattening the toes to some extent. This forward pressure together with the swaging operation causes the metal of the tongues to overflow or overlap the forward ends of -t'he slots as shown at 10 in Figure 6 for resisting the rearward pressureon thering hooks when in use.

From the foregoing, it will be apparent that the tongues "7 are firmly secured and braced both at the heels and toes to resist the pressure applied thereto which is normally in the plane of the ring hooks. The laterally swaged flanges will readily resist any lateral strains.

I am aware that many changes may be made, and numerous details of construction may be varied through a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted hereon, otherwise than necessit-ated by the prior art.

I claim as my invention:

1. In a loose'leaf device, a base plate, having a slot with a depending lip, a ring hook having a tongue extending into said slot, said tongue being swaged over said plate and said lip bein'gswage'd intosaidtongue.

2. In a: loose leaf device, a base plate havinga slot with {a depending lip, a ring hook having a'tongueextending into said slot and havin'ga toeand heel said lip beingswaged against the heel of'said tongue; the tongue being 'swaged-over said plate overlapping said toe.

'3. Ina loose leaf device, a base plate, a ring "hook-having a tongue with a toe and heel anchored in said plate, said base plate having bracing means for the heel and said tongue overlapping said base plate at the toe. v

4. Inajloose leaf device, a base plate, a ring hook having a tongue with a heel anchored in said base plate, said plate having means lapped against said heel and said tongue being swa'ged overihe back of said plate.

5. The method of attachin a ring hook to a base plate consistingof Iorminga slot in said plate with a de ending lip, inserting said ring hook iii-said slot and simultaneously swaging the end of said ring hook over said plate and said lip against the heel of said hook.

6. The method of attaching ring hooks to a base plate consistingof forming slots in said plate with depending lips, inserting said ring hooks in said slots, and simulta neou'sly swaging the ends of said hooks over said plate and said lips against the heels of said hooks.

7. Themethod of attaching a ring hook to a basepl'ate which consists in forming a slot in said plate with a depending lip, in-

serting the endof said hook in said slot. crimping the end of said hook over said plate and pressing said lip to bite into the heel of said hook.

*8. In a'loose leaf device a base plate having a slot and a depending li a ring hook having a tongue adapted for tting said slot, said tongue having upper shoulders resting on said base plate, and said t0n ue being swaged over the sides and front of said slot and said lip being swaged to bite into the heel of said tongue.

9. 'In a loose leaf device, a base plate having a slot formed to provide embracing means at one end,a ringhookprovided with a tongue having a heel and toe fitting said slot, said ton ue terminating in upper shoulders and hteingswaged over the sides and front of said slot and said embracing means beingswaged against said heel.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

GEORGE WASHINGTON NEWMAN.

Witnesses CARLTON HILL, RENE WENDELL.

Images