US486181A

US486181A - Lincoln king

Info

Publication number: US486181A
Authority: US
Publication date: 1892-11-15
Anticipated expiration: 1909-11-15

Description

L. KING} SAFETY HOOK.

'Patented No v. 15, 1892.

(No Model.)

1': Nomi PETERS c0, FNOTO-LITHDU WASHINGTON, D. c.

1 UNITED STATES PATENT OFFICE.

LINCOLN-KING, OF NEW YORK, N. Y.

SAFETY-HOOK.

SPECIFICATION forming part of Letters Patent No. 486,181, dated November 15, 1892.

Application filed July 27, 1892.

Serial No, 441,407- (No model.)

To aZZ whom it may concern.-

Be it known that I, LINCOLN KING, a citizen of the United States, and a resident of the city of New York, in the State of New York, have invented a new and useful Improvement in Safety-Hooks, of which the following is aspecification.

This invention relates to hooks (large or small) used anywhere for suspending loads. The improved safety-hook or safe shacklehook is especially adapted for use in hoisting-tackle on wire guy-ropes and on handfalls for all work which is likely to spread open hooks and for which safety-hooks having tightly-fitted or spring-fastened guards are not suitable.

The invention consists in certain novel combinations of parts, as hereinafter set forth and claimed, having, respectively, the following objects, viz: first, to adapt the hook to be made as strong as may be necessary for any work and to be used as an open hook when looking is not required, the safety-link when in use being free from load strain until the hook begins to spread, when the whole strength of the link goes to resist spreading;

' secondly, to securely lock the hook, so as to prevent spreading and so as to prevent the lashing, or whatever may be in the hook, from escaping, by a one-part safety-link without the aid of springs, weights, or the like, and, thirdly, to facilitate and expedite interlocking the safety-link with the hook proper to so look the hook.

A sheet of drawings accompanies this specification as part thereof.

Figure 1 of the drawings is a side view of the improved safety-hook locked. Figs. 2 and 3 are elevations projected from Fig. 1, showing the respective edges of the locked hook, the safety-link being also shown in dotted lines in Fig. 2 as it hangs when the device is being used as an open hook. Fig. 4is a front edge view illustrating the locking and unlocking operations; and Fig. 5 is a top View of the hook alone, showing its peculiar point more clearly.

Like letters refer to like parts in all the figures.

The hook proper A (shown detached by Fig. 5, as aforesaid, and hereinafter termed the hook has a suspension eye a in the plane of the body of the hook, which is permanently interlocked with a short link or small ring B, and this in turn is permanently interlocked with a main suspensionring 0 of suitable size, hereinafter termed the large ring.

The parts above described are adapted to be made as strong as may be required for any work and are designed to and do ordinarily sustain the entire load of the hook.

A safety-link D, which may likewise be of any desired strength, is permanently interlocked at one end with the large ring 0 in front of the small ring B and at its other end is adapted to be and is ordinarily interlocked with the point I) of the hook A. If it be desired to use the device as an open hook, it is only necessary to let the link D swing loosely, as represented in dotted lines in Fig. 2. It will then ofier no obstruction whatever.

To securely interlock the hook A and safety-link D when the latter is used, said point b of the hook is preferably made with lateral projections and of a rounded broad-arrow shape, as best seen in Fig. 5, and to facilitate so interlocking the two the link D is connected with the large ring 0 by means of an eye 0, distinct from the longitudinal loop d, which embraces the round or substantiallyround stem of said point I) immediately behind its said lateral projections. The link D must be brought into a horizontal position, as represented in Fig. 4, in order to engage its said loop 01 with said point b of the hook, and consequently must be brought into this position in order to disengage it. It is not therefore likely to he accidentally disengaged. Owing to its distinct eye 0 and loop d, as above, the position of the link D is positively controlled by that of the large ring 0 in locking the hook, and this operation is thus facilitated and expedited. When the safety-hook is used on a main fall of hoisting-tackle, for example, it is only necessary to lower away in order to put the parts in their locking and unlocking positions, as in Fig. 4.

If preferred, a safety-hook otherwise organized, as above, may have its parts so proportioned as to distribute the load strain ordinarily between the small ring B and the safety-link D, and other like modifications will suggest themselves to those skilled in the art.

Having thus described the said improvement, I claim as my invention and desire to patent under this specification- 1. The combination, in a safety-hook, of a hook proper having a suspension-eye in the same plane as its body, a small ring permanently interlocked with said eye, a main suspension-ringpermanently interlocked with said small ring, and a safety-link which is permanently interlocked with said main ring and is adapted to interlock with the point of said hook proper, which is provided with an enlarged point or to hang loosely, said eye and small ring serving in either case ordinarily to sustain the entire load strain, substantially as hereinbefore specified.

2. The combination, in a safety-hook, of a hook proper having a suspension-eye in the same plane as its body and a point of broadarrow shape with lateral projections, a small ring permanently interlocked with said eye,

a main suspension-ring permanently interlocked with said small ring, and a safety-link permanently interlocked with said main ring and having a longitudinal loop to interlock with said point of the hook proper, substantially as hereinbefore specified.

3. The improved safety-hook composed of the book A, having a suspension-eye a in the same plane as its body and a locking-point b of broad-arrow shape with lateral projections, the small ring B, permanently interlocked with said eye a, the ring 0, permanently interlocked with said small ring, and the safetylink D, permanently interlocked with said ring 0 by means of an eye a and having a distinct longitudinal loop (1 to interlock with said point 17, substantially as hereinbefore specified.

LINCOLN KING.

WVitnesses:

ANDREW M. DORR, MELVILLE E. MURPHY.