US1110961A - Apparatus for raising or lowering pump-pipes. - Google Patents

Description

G. H. REUTER.

APPARATUS FOR RAISING 0R LOWERING PUMP PIPES.

APPLICATION FILED JUNE 8,1912.

Patented Sept. 15, 1914.

2 SHEBTSSHEEI 1.

THE NORRIS PETERS CO1. PHDTD-LITHCL. WASHINGTON. D. C,

G. H. REUTER. APPARATUS FOR RAISING 0R YLOWERING PUMP PIPES.

APPLICATION FILED JUNE 8, 1912.

Patented Sept. 15, 1914;

2 SHEETSSHEET 2.

UNITED srA'ras rarnu'r orrrca.

CHARLES a. minivan, or I-IOXIE, Kansas.

. APPARATUS For. RAISING on LowEnINo PUMP-PIPES.

To all whom it may concern A Be it known that I, CHARLES H. REUTER, a citizen of the United States, residing at Hoxie, in the county of Sheridan and State ofKansas, have invented new and useful Improvements in Apparatus for Raising or Lowering Pump-Pipes, of which the following is a specification.

This invention relates to apparatus for raising and lowering pump pipes and sucker rods, the object of the invention being to provide a construction of apparatus of this character which will efiectivelylift a pipe or rod with a minimumamount of power, and which will include means for positively holding or looking the pipe or rod against accidental falling during the l0weringoperpipe to a. predetermined position to cause the dog to immediately respond and effectively grip the pipe and thereby prevent the further movement of the same in one direc- C1011; a a

Figure l'is a side view of the apparatus .showing the same in usewhen lowering a pipe, parts being shown in section. Fig.2 is a similar View showing the clamp adjusted for raising the pipe, parts being shown in section. Fig. 3 is a side view of the opposite side of the apparatus. Fig. 4. is a horizontal section taken on line 4.-4-. of Fig. 1. .Fig. 5 is a perspective view ofthe dog. In describing the apparatus, it is said that a suitable frame such as that illustrated at 1 isemployed, the same being so constructed that it'can be readily mounted upon the platform of the well drilling machine, not shown. At the lower end, the frame is provided with a horizontal bar 2 on which is mounted the fixed jaw 3 and the adjustable jaw 4:, the latter being designed to cooperate with the jaw 3 so as to define therewith an Specification of Letters Patent. Application filed June 8, 1912.

'intervening guide through I or sucker rod is adapted to slide. a is provided with a bracket portion 5 in which the horizontal slot 6 is formedfor Patented Sept. 15, 1914.. Serial No. 702,597. a

which the pipe The jaw &

the reception of the bolt 7 on the bar 2 of the 4 frame 1. Thisconstruction is such that the f jaws 3 and 4 are relatively movable so as to accommodate the j of different sizes on the bolt 7 may be adjusted to bear against the bracket portion 5 of the jaw 4 whereby I the latter can be effectively held in justed position. At the upper end the frame l is provided with a 9 in whichthe f formed. the plateE), and i vided with an embracing portion 13 to partly engage around the rod or pipe to hold the 1 same securely j The keeper carries a lever 1e: engaged behind the latch 15 ;whereby the keeper is held in its adjusted position.- An operating at 17 tothe frame 1 and passage of pipes or rods therethrough. A nut 8 its adhorizontal bracket plate pipe or rod guide slot 10 is A. keeper 11 is pivoted at12 to as shown, said keeper is propositioned in the guide slot. which may be on the plate 9 lever 16 is pivoted pivotally connected to said lever are the companion links 18 and 1 19, the latter 'being considerably longer than ;the former'for a purpose to be hereinafter l described. A clutch element or clamp 20 is 1 pivoted at 21 to the links 19 thesame having formed therein a slot22 whose endwall is beveled downwardly and outwardly to form a relatively sharp upper gripping edge 23.

By forming the slot 22 as shown, the clamp 20 is provided with spaced fingers 24 which I are partly embraced by the hook like ends 25 of the removable keeper or retainer plate 26. l Cotter pins or suitable fastening devices 27 ;are removably fitted to the fingers 24 and are designed to hold the plate 26 against accidental displacement. The plate 26 is :provided with an arcuate wall 28 which ;is disposed directly opposite the sharp edge 23'0f the clamp so as to define therejwith an intervening passage for movement therethrough of the pipe or rod. A similar clamp 29 is pivoted at 30 to the links 18,

the former being disposed above the clamp :20 and having formed therein a slot 31 whose end Wallis beveled downwardly and outwardly in an opposite direction to the 29 carries a relatively short hook 84 to Y which is removably connected the lower end of the coiled spring 30, the upper end of said spring being fixedly secured to the eye member 35 on the operating lever 16 and at a point thereon inwardly of thelink 18.

. The clamp 20 carries a relatively long hook 36 which is removably fitted to the lower end of the coiled spring 37, the latter being also secured at its upper end to the lever 16, inwardly of the link 19, as shown. 7

The operation is as follows for raising a pipe or rod: A pipe or rod is operatlvely fitted in the upper and lowerguides of the frame and in the slots in the clamps 20 and 29 and the latter disconnected from 13 springs 30 and 37. Now, by rocking the lever 16 up and down the clamps 20 and 29 will be alternately moved toward and away from each other, the sharp edges 23 and 32 of the clamps being brought alternately into gripping engagement with the pipe to thereby cause the latter to moveupward. When lowering the pipe, the springs 30 and 37 are connected with the clamps and under the tension .of the springs, the clamps will be alternately made to grip the pipe only on their downward movement, there being sufficient play between the clamps to permit the step by step like fall of the pipe as the lever 16 is rocked. When lowering the pipe it is essential that means be employed for preventing the pipe fromslipping-and for causing the positive gripping of the lower clamp 20 against the pipe prior to the release of the clamp 29 therefrom, .and in view thereof I provide a substantially bell-crank lever 38 which is pivoted at 39 to the frame 1. This lever has the free end of the arm 10 disposed above the plate 26. The arm 41 of this lever -is provided with a lug 42 through which the adjusting screw 43 extends. A retractile spring 44. connects the arm 40 of'the lever with the bar 2 of the frame 1 so that the free end of the arm 10 will be engaged against the keeper plate 26 on a predetermined movement of the levg 16 in a downward direction. One end of the screw 43 bears against one of the side members of the frame 1 and the screw is thereby capable of Operation to vary the tension on the spring 14: as the occasion may demand.

a A slotted member 44: operatively connects the upper and lower clamps together, being fitted to the pins 45 thereon whereby a pre determined movement ofthe lever'i16 in an upward direction causes the upper clamp to engage against the pipe slightly rior to the vided with a grippin release of the lower clamp from said pipe. As means to prevent the sudden fall of the pipe into the well in the event of the failure of the clamps 20 and 29 to respond properly, I provide a pivoted locking dog46 upon the bar 2 of the frame 1. This dog is disposed above the fixed jaw 3 and it is prosurface 4:7 which is designed to partly em racethe pipe. This dog is yieldingly held upwardly at an angle to the bar 2 through the medium ofthe spring 48. A dog releasing device 48* isro tatably mounted on the frame 1, the lower end of the same havin a nose 49 which may be engaged beneath tfi latter disengaged from the pipe. The releasing device is providedwith a crank arm.50

to which is connected one end of a retractile spring 51,.the opposite end of the same being secured to the. frame 1 whereby under the tension ofzthe spring the device tends to move to a released positionQ In order that the device may be held against the tension e dog46 to hold the.

of its sprin I provide the device at its upper end wit a-lever 52 whichis adapted to engage against the side ofthe pipe and held by the latter .to prevent the rotation of said device, the pipe, thus serving to hold the device in a set position. Should theipi'pe fall,

it is understood that as soonas its :upper. end passes the lever 52, the device-48 will rotate and the nose of the device then.dis-. engagefrom the dog 46 to permitthe latter pipe locking position. Inthismanner the pipe while, being lowered is effectively guarded against its sudden fall as is now understood. i Y 1 Iclaima- 1 L .1. In an apparatus for raisingand lowering pump pipes, a frame, alternatelyvreciprocating clamps, a lever pivoted on the frame and operatively connectedwith said clamps, springs carried by the lever, hooks carried by the clamps and removably fitted to said springs, means connected with the to'moveunder the tension of its spring'to clamps adjacent the free ends thereof'for operatively connecting the clamps together,

and a yielda'ble member for causing the positive gripping of one of the clamps prior to the: disengagement of the :other of said clamps. I r a 1 2. In an apparatus for raising andlowerr.

ing pump pipes, superposed reciprocating clamps, means for operatively connecting the clamps together, operating means for said clamps, springs carried by said means and adapted for detachable engagement with said clamps, and a yieldable member disposed in contacting proximity to one of said clamps for causmg thepositive' gripping of 'the latter with the pipe prior to the disengagement of the other of said clamps. v

3.111 an apparatus for raising and lowerof the latter with the pipe prior to the ening pump pipes, superposed reciprocating gagement of the other of said clamps. l0 clamps, means for operatively connecting In testimony whereof I afiix my signature the clamps together, operatingmeans for in presence of two Witnesses. said clamps, springs carried by said means CHARLES H. REUTER. and adapted for detachable engagement Witnesses: with said clamps and an adjustable yield- JAMES C. JAYNE, able member for causing a positive gripping RICHARD J. J ONES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of latents,

Washington, .D. C.

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