US1562148A - Pump-rod-handling device - Google Patents

Description

Nov. 17, 1925. I1,562,148

F. w. CARLSON PUMP ROD HANDLING DEVICE 0 g/Jaal Filed Dec. 2 1924 W CARLSON, @MMM wwwa:

Patented Nov. 17, 1925.

UNITED STATES PATENT' OFFICE."`

FRANK WILLIAM CARLSON, or oILrInLns, CALIFORNIA, AssIGNoR or ONE-FOURTH To JOHN NnLsoNL sCAnLnr'r AND oNn-IoUn'rIIro LELAND EnAsTIs AX'rnLL,-

BOTH 0F OILFIELDS, CALIFORNIA.

PUMP-Ron-HANDLING DEVICE.

Application led December 2, 1924, Serial No. 753,532. Renewed October 13, 1925. v

To all whom t 'may concern Be it known that I, FRANK WILLIAM CARL- soN, a citizen of the United States, residing at Oilelds, in the county of Fresno and State of California, have invented certain new and useful Improvements in a Pump- Rod-Handling Device, of which the following Vis a'specilication, reference being had therein to the accompanying drawings.

This invention relates to a pump rod handling device. It was formerly the practice in removing pump rods from deep wells to hoist the rods out in stands, each stand consisting ,of two or three lengths of pump 7 rod and to lay the stands out upon the ground. A more modern method and the one now commonly employed is to hang these rod stands from rod hangers, which are in turn supported by the usual derricks of the wells.

It is a primary object of the present invention to provide an improved device by means of which one man can hold the stand of rods during the disengagement of the elevator therefrom and during the time that the stand is being unscrewed from the rods therebelow, and transfer said rods to the hangers by which they are supported from the derrick.

Further objects and advantages of the invention will be set forth in the detailed description which follows:

In the accompanying drawings:

Figure 1 is a side elevation of the rod handling device constructed in accordance with the invention. j j

Figure 2 is a plan view of the forward end thereof.

Figure 3 is an elevation of one of the rods showing one of the rod elevators attached thereto, and

Figure Liis a detailed viewof a modified form of rod hereinafter described.

Like numeralsr designates corresponding' parts in all of the figures of the drawing:

The particular embodiment of the invention which I have chosen for purposes of illustration comprises an elongated tubular handle 5, the outer end of which receives the shank 6, of a head 7. By referring to Figure 2 it will be` seen that this head is in the form of a fork including the jaws 8. and 9. This fork is recessed as indicated at 10 to forma seat for the' usual flange 11, of a pump rod section` 12. These pump rod sections are provided with threaded portions 13, which screw intothe lower ends of the superimposed sections. -Flanges or collars 14 are formed at the base of the threaded' portions 13 and serve a purpose which will be resently described. Upwardly projecting s oulr ders 15 are formed at the outer ends of the jaws 8 and 9 and the seat 10 is continuedl into and along the inner faces of thesie` shoulders in an arcuate path, as indicated at 16. This construction insures that the-pump rod cannot, by any means, slipy out of lengagement with the suspension device but that upon the contrary the derrick man couldV release his hold entirely upon the lever 5 without having the stand offrods slip out of engag'ementwith the head'7. In that case, the shoulder 11 would merely ride around to the portion 16 lof the seat 10,' the tipping action of the suspension device being stopped byk engagement of the cable clamp '17 with pulley 18, before the head 7 and lever 5 had reached such an angle as copermit disengagement of the rod therefrom, the pulley 18 is suspended by means of a soft wire cable 19 from the crown of the derrick, not shown. A soft'cable 20 passes over the pulley 18 and is engagedwith the eye bolts 21 and 22 which in turn pass through the handle .5. ',The eye' bolt 21, `in

addition, passes through the shank 6 Vof head 7 and secures the head in place. The cable clamps 17 and 18 serve to `secure the cable 20 to the eyebolts 21 and 22. Thus rods weighing 60 pounds and three rods weighing pounds.

The operation of the device is as follows: A pump rod elevator 24 of a usual and known construction is hooked into engagement, at 25, beneath the shoulder or collar 11, of the uppermost one of a stand of pump rods, said lelevator being then drawn upwardly by the operation of thepulling line 26 in a usual and known way until the lowermost pump rod of that particular stand is entirely clear of the well tubing or stand pipe. At this timetheuppermost end of the pump rods extends above a tubing board ofY the derrick, (not shown) upon which the. derrick `man stands and into proximity tol the suspension deviceY of thepresent yinvention. The -stand'of -rods is then brought toy a step. and another lelevator corresponding to elevator 24 is. engaged beneath the shoulder corresponding to theishoulderll of the uppermost pump rodv of the succeed-- ing stand of `pump rfods, the upper end of which is 'at thistime justabove the upper end of the well tubing. VThe line 26 is then slackened, the rodsfat this time being supported by the lower tubing elevator. kThe sla'ckening of the line 26 permits the elevator 24 -tof moveldownwardly `along rod l2 and .thederri'ckman-grasping the upper end ofthe rod 12 with Vhis right handand the handle 15- withl his .left hand thrusts the device ofthe presentv invention forward to cause its fhookedend to engage/beneath the shoulder 1v1 of rod 12;/ he then bears down on the handle ltakingthe weight of the stand of rods, unhooks the elevator 24 and permits said lelevator *to return to the ground.

During .the time that the; elevator .is descending; the men 'below unsc'rew the rod stand from the rods sti-ll inthe well. The sta-nd yof v'rods is free to turn on the curved or roundedy seat 10. yWhen the stand has been unscrewed the der'rick man further depresses the leverr 5` and takes the whole weight of the stand on the handling device. By properly manipulating the handle 5, i. e. tilting itupon the Vpivot provide by pulley 18 and bodily swinging it upon cable `19 he is enabled to move the rod vstand to the 'usual rode hangers suspended close by from the derrick andu to suspend the stand from one of said rod hangers, it being Vunderstood that said hangers which are ofV conventional formv 'are .adapted to engage beneath `the shoulder ll or 14, and some of them are adapted `to engage the rods 12. After the stand has been hung lona hanger, the han-v drlingf device is .disengaged there-from and swung back to "its former 4posi-tion -in' readiness for the" reception of the next stand of rods which is, by this "time, coming up.

I contemplate including a spring -80fin the connection between the cable 19 and pulley tance before the fork of the suspension device is applied, (this beingnecessary because the forked lever engages the shoulder formerly engaged by the elevator) there is a short time, during which the stan-dof rods is supported vupon .the lowerelevat-or at the t'op of the well tubing. In other 'words Ythe rods are standinglupon this. lower elevator and their upper ends tend tosag over and. f

the whole stand tends to bend through the distance between the top of the stand. pipe and the top ofthe rods. By. providingl the collar illustrated in Figure l' the handling device can be applied to this collar vand the derrick man take the weight of the. stand before the tension istaken off` of the upper elevator. It makes no difference from a patentable standpoint how this bushing is applied to the rod. It may be pinned on, welded on or may be made an integral part of the rod, in the course'of manufacture of the same. Y

It is to be understood that the invention is not limited to the precise construction set for-th but that itl includes within its purview-whatever ychanges fairly come within eitherl the` terms or the spirit of the' appended claims. v

"Having described claim is: Y l A l. A device ofV the character described comprising a manually operable lever having a part a-dapted. to engage a shoulder of a stand of rodsand a bodily movable pivot point for said lever, said pivotjpoint being located closer to .the-rod engaging ends of the. levier thanthe other end thereof and a means for suspending lsaid pivot to' adapt it to swing freely in all directions.

2. A device of the character described comprising an elongated lever, vhaving a forked end adapted to engage a standy of rods, a 'suspension cable, a pulley supported by said suspension cable, a cablepassing over said, pulley and :having the opposite ends engaged with .said lever in such manner :as to suspend the-lever ina substantially horizontal plane from said pulley andat two points in its length.

3. A-device of the cha-racter'described comprising an elongated lever, having afforked headl adapted -to engage a stand of ,pump rods, a pulley7 .means for suspending vsaid pulley and a short section of cable having .my invention, what I soy its ends attached to the lever and having its standing shoulders at the outer ends of the bight portion passed over said pulley. forked head into and along which said ar- 4. In a device of the character described, cuate seat extends. l0 the combination With an elongated lever, of In testimony whereof I hereunto aiix my 5 a swinging pivot for said lever, said lever signature.- having a forked head and said forked head FRANK WILLIAM CARLSON.

having an arcuate Seat formed therein, up-

Images