US1446002A - Safety hoisting hook - Google Patents

Description

Patented Feb. 20, i923.

HUGO ERNEST DREWS, OF JERSEY CITY, NEWERSEY, ASSIGNOR 0l? OIllEvI-IALFr T0v naires stares "rarest-oie tritati.

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HERMAN r. niiasnwiirfrna, or innsisr cirr, New Ann ONE-HALF 'ro LELAND STANFORD.

Application inea April ee,

To all 207mm t mag/.concern Be it known that I, HUGO ERNEST Dniiws, a subject of the King of Denmark, having declared my intentions of becoming a citizenof the United States, residing in Jersey City, Hudson County, and State of New Jersey, have invented certain new and useful Improvements in Safety Hoisting Hooks, of which the following is a speciiica-A tion.

My invention vrelates to that class of hooks which are used in hoisting packages, bales 8:0., from the holds' or hatches or steainships, in which the rope or cable is attached to the upper or eye end of the hook, the other end of the rope or cable passing around la drum or windlass ory other orin of hoist-ing appai'atus.

Heretofore accidents and loss ot life have been caused by the packages ialling off theend of the hook, by reason of the hook catching in some object or for other reasons of the rope or cable becoming detached from the eye of the hook, and it is the object of my invention to guard and overcome these objectionable features by providing a hook which is free of all projections on its surface, having a smooth and plain surface, and to guard against all possibility of the package becoming detached from the hook when placed thereon.

My invention consists broadly in forming a hook in two sections, which are mounted slidably upon each other, the upper end of one section :forming an eye for engaging a rope or cable, the other end forming a hook for engaging the sling for holding the package to be hoisted; and in providing means whereby the two sections are locked posi-v tively together and held in this position until released by the operator.

The invention also includes minor details of construction hereinafter described and claimed.

In the accompanying drawings,

Fig. l, is a side elevation of my hook, of a rope and the other end engaging` a sling on a bale;

'9 a side elevation of my hook, the

improved parts being shown in a locked position;

F ig. 3 a similar view, the sections being shown as spread apart, and the middle portion of one section being broken away to ytion of the arrow a, and held in position by a showing the same attached to one end siiin'rr Hgois'riiicf nooit. j

1922. serial iro'. 556,604.

more lclearly show oneof `the means of connecting the two sections;-

Fig. et, is an edge View t Fig. 2; l

slots, andthe i aken inthe direcn r I f i Y, Figs. o and 6, edge views of the twosec-` tions,`showing the straps spread apart to allow the insertion of the sections inthe 'slots vbefore the straps are welded tothe 'sides of their respective sections The hook H, as

a whole is formed of th two sections A, B. 'l e .The section A, is formed at its upper vend, with an eye a., ior engaging a ringy i", in thev rope or cable R, and to insure the cable or rope being held in place, a springs, fastened at a', to the section A, and free at its other end topermit of the insertion of 'the cable or rope'lt, is provided. It is obvious that a bolt and nut may be provided with like effect, the bolt passing through the eye nut on its outer end The upper end of the section A, is Aformed witha recess a2, and the lower end A2, with a catch hoo-lc 0,, the purpose of which will be more fully explained.

The section A, at or near its upper end and at a prescribed a, is formed with an elongated slot a3, having the shoulders a, at, for limiting the eX- tent of motion of the section B.

The section B, is formed at its upper end with a catch hook b, which engages rthe distance below the eye recess a2, formed in the section A, when the two sections are brought an elongated slot Z, and shoulders 3, 4, which limit the extent of motion of the section A, when in position. The hook B', vis formed at its lower endwith al recess Z, with which the catch hook a, on the section A, engages when the parts are brought together locking the two sections positively with relation to each other, in which position they will remain until released` by the operator.'

rllhe sections A, B, are preferablx7 madev of metal and are dropped forged. The slots ai, b2, areformedby drilling or punching out the metal at the desired point, the straps a, o, being cut and forming openings a33, Z933, (as shown in Figs. 5 to allow of the insertion of the section A, in place, before the straps a, o, are welded onto the sides of the sections A, B.

When it is desired to insert the lower end,`

together, and with as far as required, when the sections are ,t same time engaging again locked together by pressing the lower section A2, of section A, with its catch hook a, into engagement with the recess b', in the lower end of the loop B, and at the the catch hook b, with formed in the upper end of the the recess a2, section A.

It will thus be seen that l provide a safety hoistinghook, that is positive in action, in that the more strain applied to the lower loop B', the tighter the parts will be locked together, and at the same time by my construction make a hook as a whole that is free ofall projections that are liable to catch or interfere with .the operation of hoisting, and thereby prevent the possibility of the package becoming detached from the hook.

What l claim as my invention and desire to secure by Letters Patent is,

1. A safety hoisting hook of the character designated, formed in two sections, one section having an eye and the other section formed with a hook portion, said sections being mounted loosely upon and held within each other near their upper extremities substantially as described, each of said sections being formed with a recess and catch hook for engagement with each other, for the purn both of said sections being formed wt'lthslotsv therein whereby the said sections are mounted slidably upon each other, said slots being formed with shoulders -forl'imiting' the eX" tent of motion of said sections, and each of said sections being formed with recesses land catch hooks for the purpose of locking said sections together, for the purpose andsu'b` stantially in the manner described.

HUGO ERNEST DREWS.

Witnesses:

D. W. GARDNER, HERMAN F. KIESEWETTER.

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