US659686A - Snap-hook. - Google Patents

Snap-hook. Download PDF

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Publication number
US659686A
US659686A US817000A US1900008170A US659686A US 659686 A US659686 A US 659686A US 817000 A US817000 A US 817000A US 1900008170 A US1900008170 A US 1900008170A US 659686 A US659686 A US 659686A
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Prior art keywords
mousing
hook
locking
main
snap
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Expired - Lifetime
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US817000A
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John F Mitchell
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John F Mitchell
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Priority to US817000A priority Critical patent/US659686A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B45/00Hooks; Eyes
    • F16B45/02Hooks with pivoting or elastically bending closing member
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/45Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45272Projection passes through cavity then moves toward noninserted portion of its member to complete interlock [e.g., snap hook]
    • Y10T24/45288Hook type projection member
    • Y10T24/45304Noninserted portion of projection member includes movably connected gate for closing access throat
    • Y10T24/45319Pivotally connected gate
    • Y10T24/45335Pivotally connected gate having means biasing gate about pivot

Description

No. 659,686. Patented Oct. l6, I900.
J. F. MITCHELL.
SNAP HOOK.
(Application filed Mar. 10, 1900.) (No Model.)
UNrrnn I PATENT OFFICE.
JOHN F. MIlGHELL,-OF KNEELAND, WISCONSIN.
S NAP- HOOK.
SPECIFICATION forming part of Letters Patent No. 659,686, dated dctobei 1c, 1906.
To 00M whom it may concern:
Be it known that 1, JOHN F. MITCHELL, of Kneeland, in the county of Racine and State of Wisconsin, have invented a new and usefulImprovement in Snap-Hooks, of which the following is a description, reference being had to the accompanying drawings, which are a part of this specification.
Myinvention has relation to improvements in snap-hooks.
The primary object had in view is to provide a snap-hook which is simple in construction and operation and inexpensive of production.
A further object contemplated is to provide a construction wherein the necessity for using rivets to form the pivots for the turning or swinging parts is entirely obviated.
A still further object is to provide a construction of such character that it will be proof against dirt or other foreign matter entering the interior of the hook, and thereby clogging and preventing the successful operation of the working parts.
With the above objects in View the invention consists of the devices and parts or their equivalents, as hereinafter more fully set forth.
In the accompanying drawings, Figure 1 is a side elevation of the complete hook. Fig. 2 is an edge view. Fig. 3 is a side elevation with the side plate removed and showing the parts in locked position; and Fig. at is a similar view to Fig. 3, but showing the parts unlocked, so as to admit of the insertion of a ring or bail into the hook.
Referring to the drawings, the numeral 5 indicates the main or body portion of the hook, from the end of which projects a curved arm or hook member 6. The metal at the lower end of this main or base portion is thickened, as indicated by the numeral 7, and the upper edge of this thickened portion is provided with two circular recesses 8 and 9, respectively.
The numeral 10 indicates a mousing or keeper the lower end of which is curved inwardly, as indicated by the numeral 11, and this inwardly-curved end fits and turns in the recess 8. The upper end of the mousing, as is usual in this class of devices, cooperates or contacts with the free end of the hook member 6 when the snap is in its normally-locked position. The mousing is also provided at No model.)
The lower rounded extremity of a locking 7 device 13 fits and turns in the recess 9, and the outer edge of this locking device is outwardly-curved, as clearly shown, and occu-' pies the space between the inner end of the hook member 6 and the inner edge of the thickened portion 7. The end of theinwardlyvextending finger 12 is adapted to normally rest against a shoulder 14, formed on the look-- ing device, and this shoulder is advisably formed by the end of a projection 15 from the lower portion of the inner edge of said locking device, the space between the projection 15 and the curved portion of the locking device forming a recess 16, which receives the finger 12 of the mousing when said mousing is forced inwardly.
The numeral 17 indicates a .spring. The coil of this spring fits in the inwardly-curved lower end 11 of the mousing. One end of this spring bears against the mousing and the opposite end thereof against the locking device.
The numeral 18 indicates a side plate which is fitted over the mousingand the locking device and conforms to the general shape of the main portion 5 of the snap. Its lower end fits against the lower thickened portion 7, and its upper end fits against an upper thickened portion '19. of the body of the snap and against a shoulder 20, formed near the inner end of the hook member 6. The plate is secured by means of a rivet 21. At the lower end of the main part 6 of the hook is arranged the usual transverse loop 22 for the passage of a harness-strap or other device therethrough.
If the parts are in the position shown in Figs. 1, 2, and 3 and it is desired to insert a link or bail into the hook behind the mousing orkeeper, pressure is exerted on the looking device 13 in a direction to force said device inwardly against the action of the spring 17. This will throw the shoulder 14 out of engagement with the end of the finger 12, and hence no obstruction will be offered 'to the forcing inwardly also of the mousing against the action of the spring 17, the finger 12 passing into the recess 16 and the parts assuming the positions shown in Fig. 4. It will be evident that a ring or bail can now be readily inserted back of the mousing. Pressure on the vice and the mousing are adapted to turn A disadvantage inherent in other forms of snap-hooks freely in the recesses 8 and 9.
t'. e., the possibility of dirt'and other foreign matter getting into the hook, and thereby clogging the parts-is also avoided. It will be evident that inasmuch as the side plate 18 fits against the enlarged or thickened portions 7 and 19 of the main part 5 the edges which would otherwise be exposed are covered. The slot in one side edge is also effectually covered by the curved formation of the locking device 13, while the mousing covers the slot in the oppositeside'edge.
What I claim as my invention is- 1. In a-snap-hook, the combination of a main part having a depressed portion, and said main portion also provided with slots in opposite edges thereof, and with a hook projecting from one end thereof, a pivoted locking device arranged in the depressed portion of the main part and having an outwardlycurved edge fitting in the slot of one of the side edges and covering said slot, a pivoted mousing or keeper also arranged in the depressed portion of the main part and filling the slot in the opposite sideedge, said mousing provided with a projecting finger adapted normally to engageashoulder of-theloc king device, and a spring acting against the. locking device and against the mousing, and adapted to hold said parts in their normal outwardly-swung positions, with the finger of the mousing resting against the shoulder of the locking device, but permitting said parts to be pushed inwardly, so as to admit of the insertion of a ring or bail.
2. In a snap-hook, the combination of ;a main part having a depressed portionyand also having slots in opposite side edges, and further provided at one end with 'a projecting hook member, a pivoted locking device arranged in the depressed portion of the main part and having a lower rounded end fitting in a rounded recess in the main part and adapted to turn therein, said locking device also having an outwardly-curved edgefitting in the slot-of one of the side edges and covering said slot, a mousing or keeper-arranged in'the depressed portion of the main part, and provided with a lower rounded end fitting a rounded recess in said main part,said mousing also fitting the, opposite sideslot, and provided with an inwardly-projecting finger adapted normally toengage a shoulder of the locking device, and a spring acting against the locking device and against the mousing and adapted to hold said parts "in their normaloutwardly'swung positions,with the finger of the mousing resg'ng against the shoulder of the locking device, but permitting said parts to be pushed inwardly so as to admit of the insertion of a ring or, bail.
3. In a snap-hook, the combination of a main part having a depressed portion, and also provided in opposite side edges with slots, and at one end with a projecting hook member, a pivoted locking device arranged in the depressed portion of the main part, and having an outwardly-curved edge fitting iii the slot of one of the side edges and covering said slot, and also having an inward extension, the end thereof forming a shoulder, and the space between said in ward extension and the main part of the locking device forming a recess (-16,) apivot'ed mousing or keeper also arranged in the depressed portion of the main ipa'rt and filling the slot in the opposite side edge, said mousing providedrwith a pro- 'je'cti n-g finger adaptedto norm allyengage the shoulder at the end of the extension from the locking device, and a spring acting against the locking device amd'agai nst-th'e mousing and adapted to :hold said parts in their normal outwardly-swung positions, with the finger of th'e mousing resting against the shoulder of the locking device,hut permitxtingsaid parts to he "pushed inwardly so=as to aadmit'of the insertion "of a ring'or hail, the finger ot the mousing, when the parts "are pushed in- *wardly, passing into the recess 16.
4. In a snaphook, the comhi nationyof a main part having adepressed portion, and thickened portions :at its upper and lower ends, and also provided in its side'edges with slots, a hook member projecting from o'ne'end of the main pan-tut :pivoted locking devicearranged (in the depressed portion 'of the main part, and having an outwardly-curved*edge fitti-ng in the slot ot on'e'of thesideedges and covering said slot, at pivoted mousing or :keepe'rialso arrarrgedin thedepressed portion =of'tl1e main part and fi' lling-theslot in the opposite-side edge, said mousing provided with a projecting finger adapted normally toengage a shoulder-of the lockingdevice, aspri'ng acting against the locking device'and against the m'ousin'g and adapted to hold said parts in their normal outwardly-swung positions, with the finger of the mousing restingagainst the shoulder of the locking device, but permitt ingrsaidiparts'to be pushed inwardly so as "to a'd-miitof the insertionof a ring or bail,
Ia'ndaplate fitted to oneside of the main part and conforming to the shape t-hereof, and adapted to cover the interior parts, and to fit against the enlarged or thickened opposite ends of the snap-hook.
A. L. MORSELL, ANNA V. FAUST.
US817000A 1900-03-10 1900-03-10 Snap-hook. Expired - Lifetime US659686A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544147A (en) * 1945-12-28 1951-03-06 Evans Whiting Clasp
US2657446A (en) * 1951-07-09 1953-11-03 Tom R Roberts Safety snap hook
US2848777A (en) * 1953-12-15 1958-08-26 Eastern Rotorcraft Corp Chain anchor release mechanism
US20110113602A1 (en) * 2009-11-16 2011-05-19 Chen zhi-jia Safety hook for fall arrest system
US8544155B2 (en) * 2011-12-21 2013-10-01 Usang Industrial Co., Ltd. Safety hook

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2544147A (en) * 1945-12-28 1951-03-06 Evans Whiting Clasp
US2657446A (en) * 1951-07-09 1953-11-03 Tom R Roberts Safety snap hook
US2848777A (en) * 1953-12-15 1958-08-26 Eastern Rotorcraft Corp Chain anchor release mechanism
US20110113602A1 (en) * 2009-11-16 2011-05-19 Chen zhi-jia Safety hook for fall arrest system
US8128141B2 (en) * 2009-11-16 2012-03-06 Yoke Industrial Corp. Safety hook for fall arrest system
US8544155B2 (en) * 2011-12-21 2013-10-01 Usang Industrial Co., Ltd. Safety hook

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