US1669418A - Sucker-rod hook - Google Patents

Description

I May 15, 1928.

J. D. LEMEX SUCKER ROD HOOK Filed June 24, 1927 2 Sheets-Sheet May 15, 1928. 1,669,418

J. D. LEMEYX SUCKER ROD HOOK FiledJune 24. 1927 2 Sheets-Sheet 2 latented May THE, WEB.

can; STATES insane JOHN D. LEMEXLOF TULSA, oxnarroma.

s oKnn-non noon.

' Application filed mnezaism. Serial No..201,14;9.

My invention relates to im u'ovoiucnts in lmohs. and more particularly to sucker rod hooks used in connection with sucker rod elevators employed for elevating orloweringr oil well sucker or iuinping rods.

The prime object of the present invention is to provide a sucker rod heck of simple and strong constructiom embodying a lock. ing or latch means for preventing the hook from becoming accidentally disengaged from an elevator or other device to which it is applied.

'lTurther objects otthe present invention are, to provide new and improvedlocking or latch mechanism and ineansi'or actuating the lockingmechanism, said mechanism and actuating means being wholly contained Within the hook structure; to provide a hook structure so designed that it has no projecting parts to catch or hang on the derrick or rigging; and to provide a safe and convenient handle for the operator.

Various additional objects and advantages will eitherbe pointed out or become apparent from a consideration of an operative embodiment as hereinafter described and as illustrated by the accompanying drawings. In the drawings, which illustrate an application of my invention:

Fig. 1 is a front elevational view of a hook embodying my invention;

Fig. 2; a side elevational view; Fig. 3, a sectional view taken on line Ill-III of Fig. 2; and

Fig. 4, a view similar to Fig. 3, taken on line IV-IV of Fig. 2.

Referring to the drawings. and as prefeared, the sucker rod hook c esignated generallyby the numeral 5 includes an elongated body 6 provided with a neck 7 having a slightly reduced and threaded end portion 8. 9 designates aclevis member designed, when ap plied to the hook, to swivel on the neck and is held in place thereon by a lock nut 11 carried on the threaded portion 8 ofthe neck. I The elongated body portion of the hook is formed with a hand opening 1.2. and is cored or otherwise constructed to provide recesses, slots or spaces adapted to receive locking or latch means and actuating; means for moving the locking means into and. out of locking positions. As shown, the body is formed with a horizontally disposed space or recess 13 having an inclined bottom wall 14, a front vertically extending inclined recess i5 (lGtllgl'lGfl to receive a latch orlocking bar or member iii, anda verticallyextending rear recess or space it? having an en. largcnientflS at its'uppor end. Locking bar 16 is slidably mounted in recess 15 and is dispose-iii at a slight angle to the vertical axis of thebody oi the hook. Bar 16 formed with an elongated slotiltl and with an apertured higiltll Said harfilfi is guided and positioned in the recess 15 by means of a pin 21 cooperatingwiththe slot Ether-cot; j

The h'uzki-ngbar actuating lliECltllllS-ili is Wholly contained withinthe heel-restructure ill) and; as illustratedand as preferred, includes abcllcranlc loverQZ jlulcrunied on a pin 23 and having liSlOllf i flillIQl: at one end. iorlred and secured to the apertured lug of the bar 16 by a pin 25. The short arm oi: the bell crank lever is connected to an operating lever or handle 27 by means of spin 528. The bell crank lever 2-9. and its operative connections are disposed in the cored-out portion or recess 13. and the said. lever 27 extends upwardly through hand opening and has a reduced upper end 29 designed to engage a stop Wall or shoulder to limit the inward movement of the said sirin CJ pressed operating lever.

Arranged to bear against the hand lever 27, I provide a flat spriitig 31 having its up per end secured to thchody by any suitable means. for instance, by screws having threaded engagement with the body.

The nose of the hook is preferably formed with an. inclined face 33 designed to cooperate with an inclined tacefi l: formed on the lower end oi the locking bar 16. These in clined faces in conjunction with the inclined positioned be and its connections tend to prevent an. accidental movement of inn; bar-to open position. Y

It will be understood that the locking bar may be readily moved into unlocked position by pressing: upon or rasping the operating lever Hand moving: it slightly against the pressure of the spring: 31., and that the loclc inn bar will be automatically returned to" loclrcd position by a release of lever 27;

What I claim is: i i. In a. sucker rod hook. the combination with an elongated body, of a vertically slidable locking bar member operable within the body and disposed in a plane inclinedto the the lock- Eli has

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vertical axis vof the body, and means for moving the locking member into and out of locking position.

2. In a sucker rod hook, the combination with an elongated body, of vertically slidable locking bar member operable Within the body and disposed in a plane inclined to" the vertical axis of the body, and means for sliding the locking member into and out of locking position, said locking member and its actuatin means being positioned and openable Wholly Within the hook structure.

, 3. In a sucker rod hook, the combination with an elongated body formed with a vertically extending locking bar receiving recess, of a vertically slidable locking bar mounted in the recess and having an elongated slot, a pin in the recess cooperating with :the said slot for positioning and guiding the looking bar, and means for moving the looking bar into and out of locking position including a bell crank lever and a ispning-pressed operating lever, said locking zbar andits actuating means being positioned and operable Wholly within the hook struci. In a sucker rod hook, the combination arm of the bell crank lever.

5. In a sucker rod hook, a slidable locking bar, and means for positively sliding the bar into unlocked position and automatically moving it into locked position.

6. In a sucker rod hook, a slidable locking bar, and means for positively sliding the bar into unlocked position and automatically moving it into locked position, said means including a bell crank lever positioned Within the hook body and a spring-pressed operating lever connected With the bell crank lever.

In testimony whereof I atlix my signature.

JOHN D. LEMEX.

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