USRE16613E

USRE16613E - Safety hook

Info

Publication number: USRE16613E
Authority: US
Publication date: 1927-05-03

Description

May 3 1927.

J. F. MOODY ET AL SAFETY HOOK Original Filed June 24 1924 INVENTOR ATTORNEY Reissued May 3, 1927 UNITED STATES Re. 16,613 PATENT OFFICE.

JOSEPH F. MOODY AND VIRGIL L. DU 3015, OF TULSA, OKLAHOMA, ASSIGNORSQBY DIRECT AND MESNE ASSIGNMENTS. TO ALBERT H. NEILSON, OF TULSA, OKLAHOMA. I

SAFETY HOOK.

' Original No. 1,541,991, dated June 16, 1925, Serial No. 722,071, filed June 24, 1924. Application for reissue filed November 6, 1926.

This invention relates to safety hooks espe' cially 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 hav ing 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 object of the invention is to provide a hook having simple means whereby the hand of the operator may be directly engaged therewith in such a manner that the handis well rotected and in such a manner that the ocking member may be conveniently operated.

A further object is to provide a safety hook which is of highly simplified construct-ion, durable in use, and cheap to manufacture.

Other objects and advantages will be apparent durlng the course of the following description.

In the accompanying drawing forming a part of this application and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a perspective of the improvedhook;

Fig. 2 is a vertical sectional view through the same in its closed position; Fig. 3 is a group 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. 5 is a detail elevation illustrating a slightl modified form of trigger.

In t e drawing, the numeral 5 designates a body having a shank 6 to which an attaching member 7 is swiveled by a ball bear- ,ing connection 8. Figs. 1 and 2 illustrate that the lower portion of the hook is provided with a pair of curved bills 9 co-operating with the forward portion of the body in defining a socket for the reception of the bails or a bail of an elevator or the like.

A latch 10 is pivoted as indicated at 3 between 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 Serial No. 146,834.

thus seen that thehand of the operator may be conveniently engaged with the hook and with the trigger 14 for either guiding the hook into engagement with the bails of an elevator or 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 a coil spring 19 with the lower portion of the latch. As soon as the latch is released by the backward movement of the trigger 14 the coil spring 19 will urge the latch 10 to the position illustrated in Fig. 4 so as to move the bail out of the socket in the hook. A further and equally important purpose of the spring 19 is to hold the trigger in engagement with the branch 11 while 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 engagement with the bail or bails to be engaged. As the bail enters the socket it engages the branch 11 and forces it downwardly to the position.

illustrated in Fig. 2 whereupon the shoul member 25 is carried by the upper portion of the hook and is arranged in the path of travel of the branch 11 so as to limit the outward swinging movement of the same. This positions the latch 10 in an outwardly inclined position for properly engaging the bail of an elevator. This also forms a gradually restricted entrance opening for the bail so thatthe bail may be conveniently engaged. Also, it will be seen that the inward movement of the latch 10 is limited'by con .oilwellsand tor hooking bucketsfrom lead and zinc mines or in fact, incany other place .Where a hook of this character would be i'ound desirable.

The safety feature of the hook does not in any way interfere with the freedom of use ot; the hook or involve any departure from established practices. 20 I ig. lqplainly illustrates that the latch 10 has .its 1 lower portion laterally enlarged to uprovide.Harcuate shoulders 31 which ride over the' rounded ears 32, at the ends of the bills. 9 so that the strain on the pivot point 11 is removed. :The lower end o'tthe latch -may also be provided with shoulders EA iwhicheengage the ends of the bills at opposite sides oftheearsSZ to limit the swinging movement of the latches.

-From the foregoing it is apparent that when a bail is located in. the hook and the latch andtr-igger are intheir functional positions, the bail cannot be accidentally dis- :placed. Should the hook be swung into contact with-the derrick: or be struck by an .;obiiect-,=jar ofthe bailagainst the latch would be resistedby the detent and contact of the latch by or with an object would be resisted by; the-hook body.

It is further apparent that the spring .urges the :trigger' to position vfor engaging thelatchand that thetriggerserves as; an actuator .for the ,lfltCll after the. latch has been released from the detent.

.Having thus describedthe invention, what isclaimed is:

1. In a safety hook, body andhook mem .bers, forming a bail socket, a latch :movable relative :to :thesocketto close the socket,a

'handlei pivoted tothe hook body and having a shoulder :it'or detaining thQElELtClh, .and connection between the handle and latch for operating the ,latch vt'ollowing its release from=the-shoulder, the shoulder and said connectimrbeing, atthesame side of the handle pivot.

2:111. a safety; hook, body andv hook members, forming a bail socket, a latch movable relative to the socketto close the socket, a

handle having onerend pivoted to the hook body and having a shoulder atits other end for detaining the latch,- and means at said other end of the handle connecting the handle and latch for operatingthe latch following .its release ifrom the shoulder and by continued movement of the handle in the direction of movement for releasing the latch.

3. In a safety hook, body and hook members, forming a bail socket, a latch movable relative to'the socket-toform a-keeper, a

trigger member comprising a detent shoulder 'for the latch, the latch when in functional position being engageable -with the body member to limit its movement in one direction and with the detent shoulder to limit its movement in the other direction, the v trigger having actuating connection with the latch. a. In a safety hook, a body member havabi 'll, forminga-bail socket aalatch -zll1OV2lblG relative to the socketto-i'orm akeeper, ,atrlgger member comprising. a detent shoulder for the =latch,. thei latclt engageable with. the body to limit its movement inone direction and with the detentishoulder to, limit its movement-in the other direction, and-a :trigger being "housed withinandprotected by saidbody. .6. 'A safety hook comprising a body having a pair of bills cooperatingiwith thebody indefining ,asocket,.a latch 'pivote-ditoz the bills and having an inwardly extending branch, a trigger adapted to engage the branch to hold ,thesame impositionand a spring connecting-the lower portion oi the :latchand thelower-zportions of the trigger to urgethe trigger into engagement with i the branch and. to urge the latch to its ,outermost vposition,;-said trigger beingwhoused within and protected by, said body.

7. A safety-hook comprisinga body having spaced bills, a latch pivoteditothe bills and having abranchsarranged between the bi-lls,. 1anda triggerpivotally carried within the bodyand adapted to engage said branch to hold :the latch in, an operative position, said trigger being housed-=withinand-,protected by saidbody.

8. Asafety hook comprising a body haw ing spaced bills, alatch pivoted to therbills and having a branch arranged between the bills, a'trigger pivotally carried within the body and adapted to engage said branch to hold the latchvin an operative position, and a spring arranged betweenisaid bills and being connected to the lower portion .of

- said trigger and lowerportion of'said latch to urge the 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.

9. A 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 to hold the latch in an operative position, 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 holes, said trigger being housed within and protected by said body.

10. A 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 bodyvand adapted to engage said branch to hold the latch in an operative position, a spring arranged between said bills and belng connected to the lower portion of said tri ger 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 holes, and said body being provided with a depending lug arranged in the path of travel of said latch and the 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 and protected by said body.

11. A safety hook comprising a body having its major portion hollowed and 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 trigger pivoted at its upper portion within said hollowed body and having its lower portion provided with a shoulder adapted to engage said branch to hold the latch in a set osition, and a coil spring connected to said latch below the pivot point of the same and to the lower portion of said trigger to urge the trigger into engagement with said branch and to urge the latch outwardly upon being released, said trigger being housed within and protected by said body.

12. A safety hook comprising a body having its major portion hollowed and provided with a pair of bills, the end portions of which are provided with cars, a latch pivoted between said bills and having a branch arranged betweenthe bills, a trigger pivoted at its upper portion within said hollowed body and having its lower portion provided with a shoulder adapted to engage said branch to hold the latch in a set position, and a coil spring connectedto said latch below the pivot'point of the same and to the lower portion of said trigger to urge the trigger into engagement with said branch and to urge the latch outwardly upon being released, said latch provided with o positely arranged shoulders riding over anc engaging said ears,'said trigger being housed within and protected by said body.

In testimony whereof we alfix our signatures. I

JOSEPH F. MOODY. VIRGIL L. DU BOIS.