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Publication numberUS1175437 A
Publication typeGrant
Publication dateMar 14, 1916
Filing dateJun 24, 1915
Priority dateJun 24, 1915
Publication numberUS 1175437 A, US 1175437A, US-A-1175437, US1175437 A, US1175437A
InventorsEdward Franklin Grotz, William Walter Jones
Original AssigneeEdward Franklin Grotz, William Walter Jones
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Double snap-hook.
US 1175437 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)




1,175,437; Patented Mar. 14,1916.

wi/tmeooeo THE COLUMBIA PLANOGRAPH cm. wAsumr'mv n c entrain snares rarnsr orrrori.




Specification of Letters Patent.

Patented Mar. 14, 1916.

Application filed June 24, 1915. Serial No. 36,029.

To all whom it may concern.

Be it known that we, ED ARD FRANKLIN Gno'rz and lViLLiAM VALTER JoNns, citizens of the United States, residing at Bridgeport,

for use in fastening antiskidding chains upon automobile tires, but which may be used with equal efi?ect1veness for various other purposes, such as upon hitching chains, draft chains, and the like.

The object of the invention is to provide a cheap, simple and efiicient double snaphook, and relates particularly to the novel, and inexpensive and eflicient manner of con necting the spring tongue to the hook.

In the drawings, illustrating the invention, in the several figures of which like parts are similarly designated, Figure 1 is a perspective view of our improved snaphook. Fig. 2 is a side elevation of the same drawn on a larger scale. Fig. 3 is a face view of the same. the spring tongue. tion of the link of the hook, the spring being omitted. Fig. 6 is aface view of the same. Fig. 7 is a horizontal section drawn on a larger scale on the line aa of Fig. 2.

1 designates our improved snap-hook, constructed preferably of malleable metal, and comprising an open link having one end 2 thereof cut away, as at 3, to provide a seat 3 for the free end of the spring tongue l, the opposite end of said spring tongue being held in a saw slot 5 (Fig. 5) produced in the opposite end 2 of the link, the end of the spring tongue beingsecurely held in position in the end 2 of the link in a manner as will now be described.

The sides of the spring tongue 4, adjacent to the anchor end thereof, are formed with notches or recesses 6, the width of the metal of the spring tongue between the notches or recesses being slightly less than that of the diameter of the end 2 of the link or loop, whereby to permit the metal of the link or loop being forced inwardly to securely fasten the spring tongue in position. I

In the manufacture of the link, the blank,

(asshown in Figs. 5 and 6), is first formed,

Fig. 4 is a face view of Fig. 5 is a slde elevathe base or notched end of the spring tongue 4 is then inserted in the saw slot 5, with the free end of the tongue resting against the seat 3, after which the sides of the end 2 of the link are compressed and bent in \vardly as shown at 7, in Figs. 2, 3 and 7, so as to close the sides of the saw slot and force the metal into the notches or recesses 6 of the spring tongue +L, thus securely looking the base end of the latter to the end 2 of the hook, and it will be noted that the seat 3 is located out of vertical alinement with the center of the saw slot 5, so that the free end of the spring tongue 4 will normally be held into engagement with its seat. In practice, the body portion of the link is bent inwardly toward the spring tongue so as to fit the curvature of an automobile the when the hook is used for fastening an antiskidding chain thereon. 4

It will be understood that the sides of the metal may be forced together and into the notches or recesses 6 by placing the loop upon a suitable die-block and striking the opposite side with a hammer, or by means of a suitable stamp-press having suitably shaped die-block and punch for forcing the metal of the link into the notches or recesses as the punching tool descends, as will be readily understood. 7

It will thus be seen that we provide an exceedingly simple and efficient snap-hook, which can be manufactured at considerably less cost than those now upon the market, and one by which connections between the ends of a chain may be readily made, and, furthermore, by our construction, it will be apparent that, in the event of injury to our snap-hook, anew snap-hook may be readily attached to the chain without necessitating special work, such as would be required with a snap-hook having a loop at one end and a tongue at its opposite end.

What we claim is l. A snap hook comprising an open link provided at one end with a tongue-receiving slot, and a tongue mounted in said slot, the faces of the slot being compressed against the faces of the tongue entirely across the width of the tongue and the lateral margins of the link opposite a portion of the tongue in the slot being engaged against side portions of said tongue.

2. A snap hook comprising an open link provided at one end with a tongue-receiving set our hands this 19th day of June, A. D. slot, and a tongue having one end mounted 1915. in the slot, said end being provided with oppositely disposed marginal notches, the ma- 5 terial of the link on opposite faces of the tongue when inserted engaging said opposite faces entirely across the width of the tongue and the marginal portions of said material opposite the notches engaging in 10 the notches.

In testimony whereof we have hereunto EDWARD FRANKLIN GROTZ.


WVitnesses to Edward Franklin Grotz:

CHARLES E. ALLARD, WM. MGLENNAN. Witnesses to William vValterJ ones:



Copies of this patent may be obtained for five cents each, by addressing the (Commissioner of Patents, Washington, D. G.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6244803 *Feb 5, 1999Jun 12, 2001Smr Technologies, Inc.Aircraft cargo barrier net
U.S. Classification24/600.9
Cooperative ClassificationA44C5/145