US388254A

US388254A - Snap-hook

Info

Publication number: US388254A
Authority: US
Publication date: 1888-08-21
Anticipated expiration: 1905-08-21

Description

(No Model.)

B. BRADLEY.

SNAP HooK.

No. 888,254. Patented Aug. 21, 1888.

I TJVESSES, INVENTOR @55M @Ml .Attorney ATENT @tirreno EVERAL BRADLEY, OF TRUMANSURG, NE\V YORK.

SNAP-HOOK.

.-. '.CPICATION forming part of Letters Patent No. 388,254, dated August 21, 1889.

Application filed June i', 1883. Serlal No. 215,819. (No model.)

To all wtom/ it may concern,.-

Be it known that LEVERAL BRADLEY, a citizen of the United States, residing at Trumansburg, in the county of Tompkins and Stateof New York, have invented certain new and useful Improvements in Snap-Hooks, of which the following` is a specification, reference being had therein to the accompanying drawings, in which-e Figure l represents a perspective view of my improved snap-hook; Fig. 2, a longitudinal sectional view of the same, and Fig. 3 a plan View thereof.

This invention is particularly designed as an improvement upon that class of snap-hooks covered by Letters Patent No. 364,572, issued to me on the 7th day of June, 1887; and it has for its objects to simplify and improve the construction generally of such hooks, whereby they are rendered more practical and positive in operation, as will more fully hereinafter appear.

rIhe invention will be fully understood from the following description and annexed drawings; and it consists in certain novel features of construction,that will be specifically pointed out :in the claims appended.

Referring to the drawings by letters, A designates the stationary body portion of the hook, which is provided with a strap or chain loop, B, at its rear end and a pair of perforated ears, a a, upon its upper side.

Projecting from the forward end of the body A is the stationary hook C and the beveled shoulder b, this hook U being inclined rearwardly at its forward end, forming a nose, c. Pivoted between the ears a a by means of a transverse pivot-pin, d, is the rear end of the movable hook U', corresponding in size and shape to the hook C, but oppositely inclined at its forward end, forming the nose 0, this hook C being provided with a lateral beveled shoulder, b. As thus constructed, the beveled free ends of the hooks C G abut, respectively, against the eorrespondingly-beveled shoulders b b', and the contiguous faces of the hoops themselves lie `fiat against each other. The rear end of the hook C is provided with a short downwardly-projecting lug or extension, e, against which bears the rear end of a coil-spring, E, this spring being inserted in a recess or cavityin the body A, and

serving to keep the hooks normally closed. The lug e fits between the ears c a, and when the hooks C C' are forced apart the spring E is compressed.

I have described the snap-hook generally as shown in my former patent, and I will now describe my improvements thereon.

In order to restrict the movement of the hook C', I provide the same near its rear end with a lateral lug,f, which is adapted to ecntact with a shoulder,f', formed ou one of the ears a, when thehooks are forced apart, thereby preventing the hook C from being thrown too far back when the snap is opened.

A difficulty with my former snap-hooi; was that the rear end of the spiral spring E would work out under the lower end of the extension e, and by the continual opening and closing of the hook this spring would eventually worm itself entirely out of its cavity. In order to remedy this defect, I bend the rear end of the spring in toward the center of the same, as shown in Fig. 2 at g. I also curve or turn up the portion g of the body between the ears a a, the degree of curvature of this portion g being approximately equal to the arc described by the lower end ot' the extension e when the hooks are separated. By this means the rear end of the spring will be effeet-ually prevented from working out under the lowerl end of the extension e.

'The letter 7L designates a hole to permit the ready egress of any water or sand that may find its way into the spring-cavity.

It will be observed by reference to Figs. l and 3, particularly, that the free ends of the hooks C C are turned slightly outward in opposite directions, and that the beveled shoulders b b' are correspondingly laterally enlarged. The object in thus curving the ends of the hooks and laterally enlarging the shoulders b b' is to facilitate the removal of a ring from the snap-hook. All that is necessary to do to remove the ring is to hold the same firmly in one hand and at the same time twist or turn the snap-hook to one side. By this means the hooks are forced apart, an d then the ring may be easily slipped out from between the hooks, the curved ends of the hooks permitting this to be done.

I also Vfind that by making the recess in which the forward end of the spring rests IOO shallowerv than in my former patent, as shown in Fig. 2, the body portion A will be easier to manufacture, and a newspring can be substituted for the old one without removing the pivot-pin d.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is'- l. The combination, with the hook-body A, providedV with a loop, B, and forwardly-extending hook C, and beveled shoulders b, of the spring-aetuated hook C', provided with a shoulder, b', the free ends of the said hooks C C being curved outwardly in opposite directions, and the shoulders Z1 Z1' being correspondingly laterally enlarged, substantially as herein set forth.

2. The combination, with the hook-body A, provided with perforated ears ct a, a loop, B, and vforwardlyprojecting hook C, and beveled shoulder b, one of the said ears a being provided With a shoulder, f, of amovable hook, C', provided with a lateral beveled shoulder, b', and 1a downward extension, e', this portion C being pivoted between the said perforated ears a, a, and also provided with a lateral'lug, f, and a spiral spring inserted in a cavity in the body A and adapted to bear against the said extension e and hold the hooks closed, substantially as described.

3. The combination, with the body A, provided vvith a loop, B, and a hook, C, and a pair of perforated ears, a a, and a slightlycurved portion, g', between these ears, of a movable hook, C', pivoted between the said ears a a and provided with a downward eX- tension, e, and a spiral spring, E, inserted in a cavity in the body A, and adapted tO press with its rear end upon the said extension e and hold the Vhooks normally closed, the rear end of the said spring being turned in toward its center, as at g, substantially as described.

In testimony whereof I affix my signature in presence Of two witnesses.

EVERAL BRADLEY. Witnesses:

GEORGE COMFORT, ARTHUR YOUNG.'