US1603836A - Counterbalanced pumping jack - Google Patents

Description

Oct. 19,1926.

J. D. BROWN COUNTERBALANCED PUMPLNG JACK 2. 'heetseet 1 Oct 19 1926. 1,603,836

- J. D. BROWN COUNTERBALANCED PUMPLNG JACK Filed March 29. 1924 2 Sheets-Sheet 2 @Mg-ffm Patented Oct. 19, 19266 PATENT JOI-IN' D. BROWN, 0F BRECKE'NRIDGE, TEXAS.

COUNTERBALANCED PUMPING JACK.

Application led March 29, 1924.

This invention relates to improvements in pumping apparatus.

The primary object of this invention is the provision of an improved pumping ack for use in connection with oil pumping apparatus, embodying an improved counterbalancing feature, and means to permit its collapsing into an out of the way relation with respect to a pumping rod.

A further object of this invention is the provision of a pumping jack which includes counterbalancing means to offset the excessive weight of the pump line and 4to permit operation of the pump line or rod with the expenditure of less power than is ordinarily necessary.

A further object of this invention is the provision of an improved pumping jack which embodies a folding feature by which the jack may be folded into an out of the way relation with respect to the pumping line or rod, so that access to the latter may readily be had either for the purpose of drawing the pumping rod, or Working about the same.

Other objects andV advantages of this invention will be apparent during the course of the following detailed description.

In the accompanying drawings, forming a part of this specification, and wherein similar reference characters designate corresponding parts throughout the several views,

Figure 1 is a side elevation showing the,

manner in which the improve-d pumping jack is used in connection with other pumping apparatus.

Figure 2 is a. plan view of the improved pumping jack and its associating pumping apparatus.

Figure 3 is a cross sectional. view taken substantially on the line 3 3 of Figure 1.

Figure 4 is a cross sectional view taken substantially on the line 4-4 of Figure 1, and

Figures 5, 6 and 7 are perspective views showing details of the improved pumping jack.

Figure 8 is a cross sectional view taken on the line 8-8 of Figure 1.

Referring to the pumping apparatus, the

letter A may generally designate the pump rod; B the main beam pivoted at one end upon a support C; D the improved pump,-

Selial No. 702,824.

ing jack connected for operation to the main beam B by means of a pitman E; the improved pumping ack D being operated by a power cable or rod F.

The support C on the upper end thereof is preferably provided with arib which is arcuate in cross section and over which the beam B restsythe beam B being provided in one end thereof with a recess 16 to receive the rib 15 for fulcruming the beam B.

The pump rod A is connected in pivotal manner to the beam B, by means 17.

A base 18 is provided for the pumping jack D, which upwardly thereon is provided with a groove 19 for pivotally receivingthe pumping jack D in fulcruming relation thereon.

The improved pumping jack D furthermore consists of the upright rocker construction 20; a fixed frame construction 21 extending to one side of the upright construction 20; a foldable frame construction 22 extending to the opposite side of the upright construction 20; and the counterbalance receptacle 24 supported by the fixed frame construction 21.

The upright rocker construction 2O preferably consists of the fulcrum block 25, which is provided with a fulcrum rib 26 extending therebelow adapted for pivotal reception in the fulcrum groove 19 of the base 18. The upright rocker construction 20 furthermore includes the side bars 27 and 28 which extend upwardly from the block 25,

being connected lto the latter by suitable bolts 29 and BOwhioh respectively connect the fixed and foldable frame constructions 21 and 22 to the upright 20. The upright bars 27 and 28 are connecte-d at their upper ends by means of a bolt construction 31 which receives details of the fixed and foldable frame constructions 21 and 22, as will be subsequently described.

The fixed frame construction 21 which is supported by the upright construction 2O to one side of the latter, preferably consists of a laterally extending arm connected at right angles to the upright construction 20, and which arm consists of a pair of bars 38 and 34 with a block 35 clamped therebetween. The bars 33 and 34 are fixedly connected by the bolt 29 to the upright construen tion 2O at the lower end of the latter, and

-ally connected at the lower end of the upright construction to normally extend at right angles to the latter. This arm construction comprises a pair of bars 45 and 4G pivotally connected by thebolt to theupright construction 20. At their outer ends the arms and 46 support a pitman i'ulcrun'i bloclr 48 by means ot a bolt 49; this tulcrum block 48 in the upper surface thereot having` a recess within lwhich the lower end of the pitman E may rest. A diagonal brace construction is provided for the fold- A able frame construction 22 which consists oi' sectional side bars. Side bar sections 51 and 52 are pivotally connected to the bars 45 -and 46 by means ci the bolt 49 above mentioned, and brace sections 53 and 54are pivot-ally connected to the bolt 31 at thetop of the upright construction 20. The brace sections 51 and 52 are pivotally hinged to the sections 53 and 54 by means of a bolt 58; a spacing sleeve 59 being provided to separate the brace sections 51 and 53 from the brace sections 52 and 54. l/Vhen the sections 51 to 54 inclusive are extended in aligning relation they provide a diagonal brace for supporting the bars 45 and 46 in a 'right angled relation with respect to the upright construction 20, and this places the v,pumping jack in an operating position so thatthepit- Y man E may rest upon the ulcrum block 48.

'At the upper end of the upright construction 20, and between the bars 27 and 28 ofi said upright construction a stirrup Vblock 60 may be pivotally supported by the bolt 31; p

said stirrup block having atransverse opening 61 therein for receiving the bolt 31, and having a second opening or passageway 62 therethrough adapted to receive a bolt vfor pivotal connection of the stirrup 63 to the block 60. The stirrup 63 is oi' course a part of the power line F.

The counterbalancing feature of this invention consists of the box or receptacle 24 which is supported by the arm portion of the fixed iframe 21 ;the receptacle 24 being bolted to the block 35 by means oi bolts-65. The receptacle is, of course, open, andinay receive therein-stone, cement, scrapY iron, r

any approved weighing material 6? which will counterbalanc'e the Vweight-fof the pump rod or line. y

Referring 'to the operation 'of this invention, during pumping, the partsare Iassem- :led as illustrated in Figure 1 of the draw ngs. The pitman E at its lower end rests upon the i'ulcrum block 48, and at its upper end engages in a recess in the lower side ot the main beam B at a point adjacent the pump rod A and on the opposite side oi the pumprod A from the pivotal support oi' the beam B with respect to the standard C. The pumping jack D is iiulcrumed upon the base 18 as above mentioned, and the i'olding1 trame construction 22 is extended so that the pitman E may rest upon the iiulcrum block 48. The power line F is connected by means ot the stirrup 63 tothe upper end oi the upright construction 2O and suitable weighing material is disposedin the receptacle 24 fior counteibalancing the, weight of the pump line A. The power line or cable li" transmits the power for rocking of the pumping jack D, so that upon the upstrolie oi the trame 22 the pump 'rod A will be elevated through the connection et the pumping jack with the beam B. The power line F is, Vof course, connected to the pumping jack at one end and to a central pover station at the other, as many wells can be 'pumped 'from one such central power station. Each well must have its own pumping jack andv power line, but incidentto the simplicity or' Athe improved pumping jack 'he counte'rbalancing kteature ot this invcntioi'i renders the pumping apparatus all the more practical as many more wells may be operated during the pumping action with a given amount'oil power by the use of this improved pumping jack. A very great improvement of the improved pumping jack D lies in the fact/that it does away with Vthe necessity ot deta'cliing bolts and other complicated parts of the pumping jack and otherapparatus in order that the pitman E may be disconnected from tliepu'mping Jack trame portion land the latter may be swung back upon the7 iixed frame construction 21 in the manner illustrated by tlie'dot and dash lines in Figiir'e 1 of the drawings. In this position the pumping jack is entirely out 'of the way the pumping rod or line A, so that workmen may with facility work about the pun'iping rod, or may draw the same without intcr ference. lWhile during operation the bolts 30, 31, 49 and 58 are tightened, they may be loosened'to,peri-nit4 the pivotal folding action of the parts of the frame construction Various changes in the shape, size, and arrangement of partsy may be madeY to the form of the improved pumping` jack and apparatus'herein shown and described, without depart-ing from the spirit oiE this invention or 'scope ofthe claims.

I claim:

1. In avdevice of the class described a pivotmemben 'a rigid 'frame extending to one side'oftlie pivot member, and a `collapsible'franie extendingA to the opposite side oi iii() the pivot member which when in extended position is rigid with said rigid frame.

2. A lpumping jack comprising an upright member, a rigid frame extending to one side of the upright member, a pivoted arm extending to the opposite side of said upright, and collapsible means for holding the arm in extended relation with respect to the upright member.

3. In a pump jack the combination of an upright construction, means rockably supporting the upright construction, a rigid frame extending to one side of the upright construction, and a collapsible frame extending to the opposite side of the upright construction adapted to be extended outwardly of the upright construction or collapsed with respect thereto.

4. A pumping jack comprising a base, an upright rockably supported on the base, a rigid frame extending to one side of the upright, an arm pivotally carried at the opposite side of the upright, and a collapsible brace adapted to support the pivoted arm in an extended relation with respect to the up right.

5. In a pumping jack the combination of an upright, an arm extending to one side of said upright, a brace connected at the outerend of saidarm and to the upper end of said upright for stably holding the arm in extended relation with the upright, an arm pivotally connected to the opposite side of the upright with respect to the mounting of said first mentioned arm with the upright, and a collapsible brace connected at the outer end of the second mentioned arm and at the upper end of the upright adapted to be collapsed to permit folding of the second mentioned arm towards the upright.

6. A pumping jack comprising an uprightconstruction, a pivot block carried at the lower end of said upright construction, a

stirrup block carried at the upper end of said upright construction, a rigid frame extending to one side of the upright construction, an arm pivotally connected to the lower end of the upright and extending to the opposite side of the upright with respect to the rigid frame, a pitman support member carried by the free end of said arm, and a collapsible sectional brace connecting the free end of said arm to the upper end of said up-l right whereby the arm may be extended with respect to the upright or folded thereagainst.

7. In combination a base, an upright member, a rigid frame construction extending to one side of the upright member, a foldable frame construction extending to the opposite side of said upright, and means for connecting a power line to the upper end of said upright.

8. A pumping jack comprising a base, a block pivotally mounted on the base, a pair of bars connected at opposite sides of said block in a fixed relation therewith, a stirrup connecting block pivotally supported at the upper end of said bars therebetween, an arm connected at the lower end of said bars and extending to one side of the pivot axle thereof, a diagonal brace connected at the outer end of said arm and at the upper end of said bars, an arm extending to the opposite side of said bars ina pivotal connection therewith, and a diagonal brace consisting of a plurality of pivotally connected sect-ions pivotally connected at the upper end of said bars and at the outer end of said last mentioned arm.

9. In combination a platform, a support carried by the platform, a beam pivoted at an end thereof on said support, a pump rod pivotally connected with said beam remote from said beam pivot, a pump jack structure pivoted intermediate its ends including a counterweight to one side of the pivot axis thereof and an arm extending to the opposite side of the pivot axis thereof, and a pitman connected between said arm of the jack and the beam pivot engaging said beam at a point thereon to the opposite side of said pump rod pivot with respect to the beam pivot on said support.

10. In combination a platform, an upright on the platform, a beam pivoted on said upright, a pump rod pivotally connected with said beam remote from the beam pivot on said upright and intermediate the ends of said beam, a second support, a pump jack structure pivoted intermediate its ends on said second support including a counterweight extending to one side of the pivot axis of said pump jack and a collapsible arm extending to the opposite side of the axis of said jack whereby the arm when extended projects toward said pump rod and when collapsed folds away from the pump rod toward said counterweight, and a pitman disposed between the collapsible arm of said jack 'and said beam engaging the latter at the opposite side of the pump rod pivot connection therewith with respect to the pivot action of the beam on said first mentioned support.

ll. In combination a base, an upright member on the base, a counterweight rigid with the upright member extending to oneside thereof, a foldable frame construction extending to the opposite side of said upright, and means for connecting a power line to said upright.

i12. In combination a base, a movably mounted upright member, a frame construction carried by and rigidly extending to one side of the upright member, a foldable frame construction carried by and'extending to the opposite side of said upright, and a counterweight carried by said rigid frame construction.

13. In an article of manufacture 4a pump jack comprising an upright pivoty member, an yarm pivotally connected with the upright pivot member and extended laterally .there- 5 from at the lower end of said upright member, anda seetional diagonal brace including a plurality of pivotally connected .sections and at the ends thereof being pivotally conneetedto the upper end of said upright, and the outer end of said pivoted arm whereby when the brace is extended in rigid relation the arm yWill ,be Aextended from the upright in rigid right angled relation.

JOHN D. BROWN.

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