US1525422A

US1525422A - Safety hook

Info

Publication number: US1525422A
Application number: US736214A
Authority: US
Inventors: Julius C Boehme
Original assignee: BLISS BROTHERS Co
Current assignee: BLISS BROTHERS Co
Priority date: 1924-09-06
Filing date: 1924-09-06
Publication date: 1925-02-03
Anticipated expiration: 1942-02-03

Description

Patented Feb. 3, 1925.

VVMN TED HS A TE. S

,earn-Nr terrien.

JULIUS'C. BOEHIIE, yOI ATTLEBORO, MASSACHUSETTS, ASSIGNOR IO BLISS BROTHERS COMBANY, OF ATTLEBORO, MASSACHUSETTS.

SAFETY .HO-O K.

Application filed September 5, 1924 To all whom t may concern.'

Be it known that I, JULlUs C. BonHME, a citizen of the United States, residing at Attleboro, in the county of Bristol and State of Massachusetts, have invented new and useful Improvements in Safety Hooks, of which the following is a specification,

This invention relates to certain new and useful improvements in safety hooks and pertains `more particularly to a hook employed in connection with wrist watch bracelets. y

The primary object of the invention is'to provide a`hook of improve-d and simplified construction, which can be easily and quickly assembled `and which is positive in its operation, and to further provide improved means for mounting and tensioning the catch.

The invention still further aims to provide a hook which embodies a minimum of parts, and which are not subject to easy derangement.

The invention has other and 'further objects which will be later setlforth and manifested in the coursev of the-following description.

In the drawings Figure 1 is a pla-n view.

Figure 2 is a section on line 2-2 of Fig. 1,

Figure 3 is a section on line 3-3 of Fig. 1,

Figure 4 is a bottom plan view, and

Figure 5 is a detail perspective view of the spring.

In proceeding in accordance with the present invention, a main member 1 is provided and is formed of a piece of metal, bent at one end to form a. hook 2 which projects downwardly from the member. The sides 3 of the metal are attenuated and bent inwardly into abutting relation to form a hollow neck 4 for attachment to the flexible wrist encircling element W.

The top is slotted at 5, while the bottom 6 constituted of the inwardly bentY parts of the sides 3, is likewise slotted at 7, the slots receiving the arms or

ends

8 and 9 of the substantially U-shaped catch 10 therein. The lower arm 9 is enlarged and cooperates with the hook 2, while the upper arm 8 is provided with an outwardly projecting finger engaging mamber 11 that eX- tends beyond the curved part of the hook 2 so as to be rendered easily accessible for opwaaien by a linger-nail..

Serial No. 736,214.

A substantially U-sha-ped 4spring 12 formed of a plate or flat piece of metal, has each of its arms slotted at 13 and shaped to conformably engage in the tapered hollow neck of the main member. The catch is received in the slots 13 of the spring arms. One of the arms of the spring has its end parts turned outwardly at 14 so as to form lingers which engage the trunnions 15 form-ed on the upper `arm 8, affording bearings for the trunnions, and hol-ding the upper arm of the catch against forward movement, rearward movement of the catch being prevented by the tapered part of the neck. Teats 16 are struck-inwardly from the bottom 6 and engage the lower arm of the spring, so as to prevent forward movement thereof.

From the foregoing it will be seen that no solder, or other extraneous fastening is employed in assembling or securing the parts in operative relation. The upper-arm 8 of the catch is held engaged withthe top of the hookby the spring.

The entire structure thus includes but ythree movable parts.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is l. In a safety hook, a main member having an end thereof bent to form a hook and having a tapering hollow neck, the top and bottom of the member having slots therein, a substantially U-shaped catch in the member having trunnions and having its arms arranged in the said slots and with one of the arms cooperating with the hook, and a substantially U-shaped spring having each of its arm bifurcated to receive the rear part of the catch, said spring being of t-apered form and conformably received in the neck and having the free ends of its upper arm bent upwardly to engage the catch trunnions, the bottom of the main member having inwardly struck teats engaging the ends of the lower arm of the spring.

2. In a safety hook, a main member having an end thereof bent to form a hook and. having a tapering hollow neck, the -top and bottom of the member having slots therein, a substantially U-shaped catch in the member having trunnions and having its arms arranged in the said slots and with one ofthe arms cooperating with the hook, and

a substantially U shaped spring having means to engage the tnunnions to tension the catch and to provide bearings on which the catch pivots.

3. In a safety hook, a member having a hookj a substantially U-shaped catch having one arm thereotcooperating with the hook and the other arin overlying the lattertrunnions on the catch, and spring means in the member xed relative Ythereto for tensioning theY catch and Yfor affording bearings about which the trnnnions pivot,

Y 4. In a safety hook; a member havingl a hook, a catch havingY a part cooperating with the hook, and spring means in the fmember fixed relative thereto for tensioning the catch and 'for providing Vbearings about which the catch pivots.

5. In a safety hook, a member having a hook, a catch having a part cooperating with the hook, and having a pair of laterally projecting trlinnions7 a spring for tensionin'g the catch7 and parte on the spring engaging the trunnions for providing bearings about which the trannions pivot.

6. In a. safety hook, a member having a hook, a catch having a part cooperating with the hook, and having trunnions7 a U-shaped spring' having fingers on one arm thereof engaging the trunniors, and means integral with the member to engage the other arm of the spring to prevent sliding movement thereof.

T. In a safety hook, a 'member having a hook and a tapered neck, a catch, and tapered spring means for tensioning the catch the neek and being held against rearward movement by engagement with the tapered parts ofthe neck. y

Y 8. In safety hook, a member having a hook and a tapered neck, a catch7 tapered spring means for tensioning the catch and to prevent inward movement of the catch and means engaging 'the spring means to prevent outward movement thereof.

9. In a safety hook, a member having a hook and a spring pressed tJ-shaped catch havingYV one arm confronting the hook and cooperating therewith and having its opposite arm extending through the top of the member and projecting over and beyond the hook.

10.111 a safety hook., a. hook member, a U-shaped catch cooperating with the member and a U-shaped spring fixed relative to the member and having one of its arms engaged with'one ofthe arms of the catch to provide bearings about whichthe catch pivots.

lli In a safety jhook, amembe'r having a hook7 a catch having an arm cooperating with the hook and having a second Yarm which extends over t-he back of the hook, and means to tension the catch.

In testimony whereof I have signed my name to this specification in the presence ot two subscribing witnesses.

JUIJIUS C. BOEHME. Witnesses:

LEAH Knowles, .I/VALTER A. BRIGGS.