US1081427A - Combination slip-socket. - Google Patents

Description

w. s. BRUMMETT as? TL. s. METZ. COMBINATION SLIP SOCKET. APPLIGATION r Lsn rnxfi dsls.

Patented Dec. 16, 1913.

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Specification oflpetters Patent.

Patented nee. 1c, 1913.

Application filed February 6, 1913. Serial No. 7%,506f

To all whom it may concern."

Be it known that we, WILLIAM S.'lBnUM- METT and LAMECH S. Mnrz, citizens of the United 'States, residing at-Ooalinga, in the county of Fresno and State of California have invented certain new and useful III}? provements in Combination Slip-Sockets, of which the following is a specification.

The present invention relates to certain new and useful improvements in fishing tools :such as are commonly employed in the drilling of Artesian and oil wells for the recovery of broken drill rods or other tools which may have become wedged or firmly lodged in the well, the object of the inven tion being to provide a device of this character which embodies novel features of construction whereby it will securely grip the broken drill rod or other tool for the purpose of pulling the same out of the well, and also whereby the broken drill rod or other tool can be readily released should itbe so firmly lodged within the well as to position;

resist the attempts to pull the same out of position.

A further object of the invention is to provide a fishing tool or drill rod grab which is comparatively simple and l1]X pensive in its construction which can be used in the conventional manner, which will securely grip the broken drill rod or other tool, and which can be readily manipulated to releasethe broken drill rod should such become desirable.

With these and otherobjects in View the invention consists in certain novel combinations and arrangements of the partsas will more fully appear as the description proceeds, the novel features thereot being pointed out in the appended claims. a

For a full understanding of the invention, reference is to be had to the following description and accompanying drawing, in which z- Figure 1 is n a vertical sectional View through a drill rod grab constructed in accordance with'the invention, the tongs being shown in side elevation in the position assumed when gripping the tool which it is desired to withdraw from the well. Fig 2 is aside elevation of the tool, showing the position-assumed by the parts when the tongs have been moved into an inoperative Fig. dis a transverse sectional view on the line 3-3 of Fig' 1. Fig. t is a' the plug 8.

similar View on the line 4-lof Fig. 1 .and Fig. 5 is an enlarged detail View of the detent for holding the tongs in'an inoperatlve position.

Corresponding and like partslare referred to in the following description and indip ited in all the views of the drawing by thesalme reference (bllnrnntflmg Specifically describing the present embodiment of the invention, the numeral 1 designates the socket member which is pro vided with the usual opening 2 extending 4 upwardly into the same from the lower end thereof, the upper end of the socket member being provided with the usual threaded stud 3.by means of whichthe device can be readily attached to the drill rods 4. A pair oflongitudinalslots 5 which communicate with the opening- 3 are formed in opposite sides of the socket member 1 to admit of access being readily had to the tongs for releasing the same after they have been moved into an inoperative position. The lower end of the opening 2 is formed with a flared mouth 6 for directing a tool or broken drill rod into the socket, while the interior of the opening 2 isprovided toward the lower end thereof with the downwardly converging inclined side walls '7.

The upper end of the socketmember 1 is provided at a point above the-opening :2 with a transverse opening within; which a plug 8 is removably'inserted. A guide rod 9 which projects longitudinally into the socket opening 2 from the upper end or base thereof has its upper extremity threaded within For the purpose of locking both the plug 8 and the guide rod!) rigidly in position so as to avoid any possibility ofthe parts working-loose while in an oil well, a transverse pin 10 which is disposed at right angles to the plug 8 is inserted within the socket member 1, the said pin passing through both the plug and the guide rod so as to anchor the members firmly in position.

The guide rod 9 preferably has a polygonal cross section and; a slide 11 is mounted for longitudinal movement thereon, the

downward movement of the slide being limited by means of a nut12 which is threaded upon the lower end of the guide rod; Surrounding the uide rod 9 and interposed between the base of the socket opening 2 and the slide 11 is a coil spring 13, the said coil spring normally forcing'the slide 111 downwardly to the lower limit of' its-movement so as to hold the tongs yield.

ingly'in operative position. The tongs in- .clude'a pair, of-wedge shaped jaws 14 which with the teeth 14*, while the outer faces thereof arejadapted to slide upon theinclined side walls 7 VVhenthe drill rod grab is dropped into an oil well, the upper end of the broken. drill rod or tool 16 which'it is desired to engage will enter the socket opening '2 and engage the wedge shaped jaws 14 These jaws '14 may slide upwardly a slight amount upon the inclined side walls 7 to admit of the member 16 being received between the same, although when the socket 1 is pulled upwardly, the jaws 14 will slide downwardly upon the inclined sidewalls 7 and be thereby drawn into a firm engagement with the member 16.

It not infrequently happens that the tool or member 16 is so firmly wedged'or anchored within the oil well as to successfully resist all efforts to withdraw the same by means of the socket, and'insuch instances it is .very desirable that some means be provided whereby the 'socket or grab can be disengaged from the member 16. In the resent instance the spring arms 15 are loosely connected at an intermediate point in-their length by means of the transverse pin 17 which provides an abutment for engagement with the upper end of the broken drill rodor tool 16 when the socket member 1- 'is pushed downwardly instead of being drawn upwardly. The guide rod 9 is also formed with a transverse opening 18 within which a pair of spring detents 19 are mounted. These detents 19 diverge outwardly and upwardly and are normally forced outwardly into an operative position by means of a sp ring.20. It will thus be obvious that by forcing the socket member 1 downwardly and bringing the abutment or transverse pin 17 into engagement with the upper end of the member or tool 16, the tongs can be moved upwardly within the socket against the, action of the spring 13 until the sllde 11 isengaged by the detents 19, as indicated by Figs. 2' and 5. v, The slide 11 and jaws 14 are thenlocked in araised and inoperative position such as admits of the grab being readily well. With this construction it will be obvious that the broken drill rod or tool can be engaged by the effort made to dislodge the same, although should it be impossible to dislodge the tool the grab can be readily disengaged therefrom by pushing the same downwardlyuntil the tongs are-locked in an inoperatlve position. The wedge shaped jaws 14 are detachand opposed facesreleased and withdrawn from the drill rod grab and anvarious sizes of jaws can-be mounted within the socket, according to the nature of the work to be performed.

Any suitable manner of connecting the v jaws to the springs 14 may be employed,

instance the said are shown as constructed with 14 into which the ends ofthe although in the present jaws 14 sockets springs 15 are fitted, suitable rivets 'or fastening members 15* being utilized for retaining the extremities of the springs in the sockets.

' Having thus described the invention, what we claim as new and desire to secure by Let'- ters Patent, is

1. A drill rod grab including a socket, a guide rod projecting into the socket, a slide mounted upon the guide rod, tongs carried by the slide, yielding means engaging the slide and normally forcing the same downwardly to hold the tongs in-an operativev position, and a detent on the guide rod for engagingthe slide to hold the tongs in an inoperative position when the slide has been pushed rearwardly against spring.

2. A drill rod grab including a socket, a guide rod projecting into the socket from the base thereof, a slide mounted upon the guide rod, spring arms projecting from the slide, cooperating jaws carried by the spring arms, a spring surrounding the guide rod and engaging the slide for normally moving the same outwardly to hold the jaws in operative position, and a detent upon the guide rod for engaging the slide to hold the jaws in an inoperative position when the slide has been moved rearwardly against the action of the spring.

3. A drill. rod grab including a socket, a guide member projecting into the socket from the base thereof, a slide mounted upon the guiderod, spring arms projecting from the slide, cooperating aws carried by the spring arms, a spring surrounding the guide rod and normally forcin the slide. downwardly to hold the jaws in operative position, an abutinent upon the spring arms for engagement with the member being operated upon to force the slide and jaws upwardly against the action of the spring, and a detent upon the slide to hold the members in an inoperative position when the slide has thus been moved upwardly upon the guide rod.

4. A drill rod grab including a socket, a guide member projecting into the socket from the base thereof, a slide mounted upon the guide rod, a pair ofspring arms projecting from the slide, cooperating jaws carried by the spring arms, a cross pin loosely connecting the spring arms, a spring engaging the slide and normally moving the same downwardly to hold the jaws yieldingly a. 'nmmfivp. nosition. the before mentionedthe action of the withp the guide rod for engaging transverse pin being adapted to engage the member belng fished for to force the jaws upwardly and move the slide upwardly upon the guide rod, and a detent upon the i 5 guide rod for engaging the slide to'lock the members in an inoperative position when the slide has thus been moved up Ward-1y upon the guide rod.

5. A drill rod grab including a socket 10 member provided with a socket opening and ing its upper end fitted within the plug, a locking pin extending transversely through the plug and guide rod, a slide mounted upon the guide rod, tongs carried by the slide, and means engaging the slide for nor- 20 mally moving the same downwardly to hold the tongs in operative position.

In testimony whereof we afiix oursignatures 1n presence of two witnesses.

"WILLIAM S. BRUMMETT.

LAMECH S. METZ.

Witnesses BUEL GAILBRATH, LOUIS GEORGE.

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