US1541991A

US1541991A - Safety hook

Info

Publication number: US1541991A
Application number: US722071A
Authority: US
Inventors: Joseph F Moody; Bois Virgil L Du
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-06-24
Filing date: 1924-06-24
Publication date: 1925-06-16
Anticipated expiration: 1942-06-16

Description

June 16,1925.

I J. F. MOODY ET AL SAFETY Hook Filed June 24, 1924 J [M000], Yvuentoz asap/2 y Z] L- ALDUBOIIS) Pate'ntedJune 16, 192 5. 7

JOSEPH F. mooDY'A NovmoIr. L. Di: 1301s, or TULSA, o'xLAnomA.

SAFETY HOOK.

Application filed June 24, 1924. Serial No. 722,071.

.To all whom it concern i Be. it known that we, JOSEPH F. Moonr and VIRGIL L. DU Bots, citizens of the United States, residing at Tulsa, in the county of Tulsa and State of Oklahoma, have invented new and useful Improvements in Safety Hooks, of which the following-is a specification. q

This invention relates to safety hooks especially adapted for use in connection with the bails of elevators, and. the like.

Briefly stated, an important object, of

' this invention is to provide a safety hook having simple means whereby the same may be positively closed to hold the bails of an elevator, or the like, in engagement with the hook A further ob'ect of the invention is b rovide a hook aving simple means wherey the hand of the operator may. be directly engaged therewith in such a manner that the hand is Well protected and in such a manner that the locking member may be.

conveniently o rated.

. a A further 0 gect is to provide a safety hook which is 0 highly simplified construction, durable inuse, and cheap to manufac ture.

Other objects and advantages .will be apparent durmg the course 0f.the following description.

In the accompanying drawing forming a part of this application and in which llke.

numerals are employed to parts throughout the same, h Fliigure 1 1s a perspective of the improved oo 1 r -Fig. 2 is a vertical sectional View through the same in its closed position; t

Fig. 3 is agroup perspective illustrating a closing or looking bar and a trigger for holding the same in an operative position; Fig. 4 is a vertical sectional view through the improved hook in its open position; Fig. is a detail elevation illustrating a slightly modified form of trigger.

In the drawing, the numeral 5 designates a body. having a shank 6 to which-an attaching member 7 is swiveled bty a ball hear ing connection 8. Figs. 1 an 2 illustrate that the lower portion of the hook is provided with a pair of curved bills 9 cooperating with the forwardportion of the body designate like defining a socket for the reception of the of the body 5" ishollowed elevator or 1d the coil spring various objects, such as sitions the latch 10 in an outwardly tween the spaced bills 9 and is adapted to extend over and close the socket in the hook so as to positively prevent the bail or bails of an elevator or the like from being accidentally disconnected from the hook.

Figs. 2 and 3 illustrate that the latch 10 is provided with an inwardly extending branch 11 adapted to be engaged by a shoulder 12 on'the lower portion of a hand operated trigger 14. The major portion out for the reception of the trigger l4 and is provided with alined hand holes which the hand of the o erator may be extended through the body and through a hand hole 16 in the latch. It is thus seen that the hand of the operator ma e conveniently engaged with the hook and with the trigger 14 for either guiding the hook into engagement with the bails of an for disengaging the shoulder 12 of the trigger from the branch 11..

The trigger 14 is pivotally mounted at its upper. end as indicated at 18 and the lower portion of the trigger is connected by 19 .with the lower portion of a coil spring h. s soon 'as'the latch is released the late by the backward movement of the trigger 19 will urge the latch 10 4 so as.

to the position illustrated in to move the bail out of the soc et in the hook. A further and equally im ortant purpose of the spring 19 is to hold t e tri ger 1n engagement with the branch 11 whi e the bail is'within the socket of the hook.

In operation, the hand of the operator is extended through the

openings

15 and 16 and the hook is guided into en agement with the bail or bails to be engage As the bail enters the socket it engagesthdbranch 11 and forces it downwardly to the position illustrated in Fig. 2 whereupon the shoulder 12 is hooked over the branch 11 so as to hold the latchin the position illustrated in Figs. 1 and 2. The ,bail is now securely held in the socket o disengaged a he hook and is not easily result of the hook striking portions of the derrick. It is important to note that the branch 11' extends into the of the hook and 2. depending stop member 25 is carried by the upper portion of the hook and "is aranged in the path of travel of the branch 11 so as to limitthe outward swinging movement of the same. This pohollo-wed portion nnssuEn 15 by meansof lot inclined.

I position for properly engaging the hail of in de ning a socket, a latch branch to hol most position,

an elevator. This also forms a gradually restricted entrance opening for the bail so that the bail may be conveniently engaged. Also, it will be seen that the inward movement of the latch 10 is limited by contactwith the'depending stop 25.

In carrying out the invention, the latchcontrolling' trigger 14 may be be provided with a lug or shoulder 30 arranged in the path of travel of the latch 11 so as-to limit the outward swinging movement of the same-this feature 0 lustrated in Fig. ,5. v

The invention forming the subject matter of this application is especially adapted for use in pulling sucker rods and tubing from oil wells and for hooking buckets from lead and zinc mines or in fact in any other place where a book of this character would be found desirable. i.

The safety featureof the book does not in any way interferewith the freedom of use of the hook or involve any. departure from established practices.

Fig. 1 plainly illustrates that the latch 10 has its lower portion laterally enlarged to provide arcuate shoulders 31 which ride over the rounded ears 32 at the point 11 is-removed. The lower end of the latch may also be provided. with shoulders 34 which engage .the ends of the bills at opposite sides of the ears 32 to limit the swinging movement of the latches.

Having thus described the invention, what is claimed is:

1. A safety hook comprising a body hav-' ing a air of bills cooperating with the body in de ing a socket, a latch ivot'ed to the bills and having an inwar 1y extending branch, and a trigger adapted to engage the branch to hold the same in position, said trigger being housed within and protected by said body. 2. A safety hook comprising a body having a air of bills cooperating with the body ivoted to the bills and having an inwar ly extending branch, a tri ger adapted to engage the the same in position, and a spring connecting the lower portion of the latch and the lower ortion of the trigger to urge the trigger into engagement with the branch and to urge the latch to its outersaid trigger being housed within and protected by said bod 3. A safety hook comprising a body hav ing s aced bills, a latch pivoted to the bills and aving a branch arranged between the bills, and a tr' ger pivotally carried within the body and a apted to engage said branch to hold the latch -in an operative position,

tected by said he y.

f the invention being ilends of the bills 9 so that the strain on the-pivot.

. LA safety hook comprising a body having spaced bills, a latch pivoted to the bills and having a branch arranged between the bills, a trigger pivotally carried within the body and adapted to engage said branch and a spring'arranged between said bills and. being connected to the lower portion of said trigger and lower portion of said latch to u'rgethe trigger into engagement with said branch and to urge the latch to its outermost position,- said trigger being housed within and protected by said body.

5. A safetyhook comprising. a bodyhaving spaced bills, a latch pivoted to the bills and having a branch arranged between the bills, a trigger pivotally carried within the body and-adapted hold the latch in an operative osition, and a spring arranged between said bills and being connected to the lower portion of said trigger and lower portion of said latch to urge the trigger into engagement with said branch and to urge the latch to its outermost position, said body and said trigger being provided with hand oles, said trigger lgllg housedwithin and protected by said 6. A safety hook comprising abody having spacedbills, a latch pivoted to the bills and having a branch arranged between the bills, a trigger pivotallly carried within the body and adapted to engage said branch to hold the latch in \anoperative position a spring arranged between said bills and being connected to the lower ortion of said trigger and lower portion 0? said latch to urge the trigger into engagement with said branch and to urge the latch to. its outermost position, said body and said trigger being provided with hand holes, and said body being provided with a depending lug arran ed in the path of travel of said latch and t e branch of the same to limit the movement of'the latch in one direction and to limit the movement of the branch in the other direction, said trigger being housed within andprotected by said bod 7. A safety hook comprising a dy having its major portion hollowedand provided with 'a pair of bills, the end portions of which are provided with ears, a latch pivoted between said bills and having a branch arranged-between the bills, a trig er pivoted. at itsupper portion within sai hollowed bod and having its lower portion provided wit a shoulder adapted to engage said branch to hold the latch in a set sition, and a coil spring connected to said latch below the pivot point of the same and to the lower rtion of said tri ger to urge the trigger into enga ement wit said branch and tourge the latcld outwardly upon being released, said trigger beinghoused within and protected by said body.

to hold the latch in an operative position,,

to engage said branch to ition, and a coil portion of said trigger to urge the 'tri ger into engagement withsaid branch an to urge the latch outwardly upon being released, said latch provided with oppositely arranged shoulders riding over and engaging said ears, said trigger being housed within and protected by said body.

tures.

In testimony whereof we aflix our signa- JOSEPH F. MOODY. VIRGIL L. DU BOIS.