US647714A - Snap-hook. - Google Patents

Description

- No. 647.714. Patented Apr. l7,'|eoo.

s. L. BAKER.

SNAP HUOK.

(Anuman mad my 1, xs's.)

(No Modal.)

iran STATES i PATENT Omen.

GILBERT LINCOLN BAKER, OF XVATERFORD, CALIFORNIA;

SNAP-HOOK.

1 srncrnrcATIoN forming 'part of nttrs Patent No. 647,714, daten Aprn 17, '1906.

Appnmion nea May 1, 189e. Ysenti No. 715,116. dit man.)

To all whom it 12mg/ concern:

Be it known that I, GILBERT LINCLN BAKER, a citizen of the United States, residing at Waterford, in the county of Stanislaus and State of California, have invented a new and useful Snap-Hook, of which the following is a specification.

This invention relates to snap-hooks of that class embodying a sliding bolt, and has for its object to provide means whereby the bolt may be locked against accidental disengagement from its locked position.

To these ends the present invention consists in the combination and arrangement of parts, as will be hereinafter more fullydescribed,shown in the accompanying drawings, and particularly pointed out in the appended claim.

In the drawings, Figure l is a perspective view of the improved snap-hook, the bolt thereof being in looked position. Fig. 2 is a side elevation showing the boltfree and a portion of the shank broken away. Fig. 3 is an edge view of the bill side ofthe hook. Fig. 4 is a longitudinal sectional view showing the lapdink swiveled to the shank. Fig. 5 is an end View of the link end of the device.

Corresponding parts are designated by like reference characters in all the figures of the drawings.

Referring to the accompanying drawings, l designates the shank of the device, having at one end the hooked bill 2. The shank is hollow, as indicated in Fig. 2, and within the hollow shank is mounted the longitudinallyslidable bolt 3, which is adapted to be moved beyond the end of the shank, across the opening between the latter and the end of the hooked bill 2,thereby closing the entrance into the eye formed by the hook. The bolt is provided with a headed pin 4,e.\:tending laterally therefrom and outward through a longitudinal slot 5, formed through one side of the shank upon the same side andin line with the blll end of the hook 2 and communicating with the interior of the shank. Inclosed within the hollow shank is a coiled spring t`,bearing at one end against the rear wall 7 of the longitudinal opening in the shank4 and at the opposite end against the adjacent rear end of the sliding bolt 3 to normally hold the same extended and closing the eye formed by the hook, as herl inbefore set forth.

To lock the sliding bolt against accidental displacement, the shank is provided with a'. substantially L;shaped or bayonet slot 8,com municating with the rear end of the longitndif nal entrance-slot 5 and extending forwardly and inclined downwardly therefrom. This slot 8 comprises an initial portion of decided cur'- vature and a portion 9 of slight curvature that .is `substantially parallel to the slot 5 and a transverse recess lO at the forward end of the vportion 9 and extending toward the entrance'- slot 5. It will be noted that this transverse slot is wider at the outer side than at the inner side thereof to accommodate the head of the pin 4. Then it is desired to lock the bolt, the pin 4: is entered into the inclined portionA of the bayonet-slot and then turned into the trans;

verse slot. The shank of the pin fits in the narrow inner portion ll of the slot and is held thereby against lat-eral movement, and the head of the pin is received within the enlarged portion of the slot, the opposite walls of which extend above the head of the pin to protect the same against being caught in some part of a harness or other object. The pin being engaged in the bayonetslot, as hereinbefore `set forth, the bolt is locked against accidental disengagement, but may be readily drawn back as desired.

It will be observed that the initial portion of the inclined slot is of arcuate shape and is also bowed outwardly from the straight entrance-slot 5, whereby the outer wall of the bowed slot ofers resistance to the retraction of the transverse operating-pin 4, so as to prevent accidental inward movement of the bolt 3. Moreover, as the operating-pin travels in the bowed or arcuate slot it imparts a rotary movement to the bolt, and the friction generated thereby will also tend to prevent accidental inward movement of the bolt.

As best illustrated in Figs. l and 3 of the drawings, it will be seen `that the widened outer portion of the transverse slot lO forms a socket for the reception of the head of the operatin gpin which lies Within the outer side of the shank, so that the latter is entirely free from projections which might catch in the harness or other objects.

IOG

Opposite the bill'end of the shank there is provided. a lap-link 12, having its opposite ends beveled upon adjacent sides thereof, as clearly indicated in Fig. 3. One of the members of the link is preferably longer than the"v other and is provided with an eye or opening 13, formedthrough the beveled end of the member. The other and shorter member has a lugor rivet 14 projecting out from the beveled end thereof, and the longer member is capable of being bent or forced into engagement with theshorter member, the opening 13 receiving the lug or rivet 14, which isthen upset against the vouter face of the longer member, whereby the lap-link maybe formed into a closed linker eye. It will be understood that the link is normally used; asianorcapableof' being Aformed intesaclosed link, as desired..

dinary lap-link and.. is also In some; instances iltrmay be desirable: to'- have the''lap-link swiveled to theshank,4 and:v

l' provide for-this, as shown in Fig. 4.. The;

endv of theshank opposite the hooked?V end*- thereof isreducedl in diameter, asfat 15,.- and: theflink 12V is provided withv anropeuingtl, formedthroughV one side thereof:` and a'daptfadi` toreceive the reduced end' of the shank, the; end; of the latter being rivetedior upset, asat 18,v against the inner side of the link, whereby the-,latter is; swiveledto the shankott'hesnap hook.

Inthe manufacture-of the'deviceithe end of theahooked bill 2 alinementfl with the shankI 1, so asl notltoob.-

structtheentrance ntothehollow shank, and

therebytofacilitate the position-ing. of4 the! springandftheslidingbolt 3, havingthein.-

t'egral pin 4'., After the partszhave been; ase sembled the bill isf bentA backV intoVv its norm-alf position, andltherebyprevents accidentalloss off theis'liding bolt', as w-i-ll-beunderstood'. It; l

willnowfbe apparenty thatthe purpose of the straight longitudinal slot 5 isto faclitatefithe;

introduction of the bolt 3 and the operatingav longitudinal; bore,A

is originally twisted. outiof' within, the outer pin 4, as it would be inconvenient to insert the latter through a bowed slot.

The present improvements provide an exceedingly practical and useful form of snaphook, the partsofwhich may be readily assembled together,l the sliding bolt may be lock'ed'against accidental-disengagement, and

efficient means is vprovided inthe form of a i lap-link whereby the device may be connected or fastened to a strap or other object.

Ghangesin the form, proportion, size, and

the, minor details of construction within the scope ofthe appended claim may be resorted t'o= without departing from the spirit or sacri ficing any of the advantages of the present invention. I o y Having thusadescribed` the invention', what A snapt-hook; having-a; shankprovidedi with opening at. the bill end thereof', and-.whichis circular 'incrossfse'ctiom a longitudinal entranceslotl communicating.

a throughout its*lengthlwithithefboreandopeningat the'. bill end offthey shank,.an1 arcuate slot extending`V forwardly' and' bowed@ Outwardly fromthe rear 'endfof the entrancefslot, a transverse slot'at theeforwardY ends of thearcuate; slot, said transverseV slot being: widened at-itsouter'side toforma socket, anda longit'udinallyslidableiandrotatableabolt housed fwithin the'vborieof the shank,` and l'raving a.

transverse headed operating-pin: workingin -the arcuateslot, and also received in the transverse slot, when the; boltL is locked, the.: head of the; pin: being seated: in the socket and side ofl theshank.

I-n testimonyl that* Ifclaiin'. theiforegoing as my own I-have heretoailixedmysignaturein the presence of. two witnesses:

GILBERT LINCOLN BAKER;

Witnesses:

WM.,T.` PINKsToN, R. Mv. Tow-Nus.

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