US1734845A - Swing - Google Patents

Description

Nov. 5, 1929. c. H, BALDWIN SWING Filed Jan. 18, 1927 wila,

INVENTOR. lld

' lines some dist-ance and to provide a meansfor Patented Nov. T5929 vunan Price 1 CLOISE -I. BALDWIN, OF FORT -WOR'II'I, TEXAS, ASSIGNOR TO TEXAS STEELLCOMPANY, OF FOR-T W'GRTH, TEXAS, -A CORPORATION OF' DELAWARE SWING Application med January 1819277. "Serial No. 161,938.

This invention relates to a swing, designed primarily for use in connection with pull rods employed in the operation of oil or gas well pumps, but it is to be understood that a swing, in accordance with this invention can be employed for any purposes for which it is found applicable, and the invention has for its object to provide, in a manner as hereinafter setforth, a device of the class referred to including an oscillatory member interposed between and connecting a pair of pull rods together, and further with said device including means to provide -for the lubrication of said member and for the lubrication of the stirrups employedfor attaching the pull rods to the oscillatory member. I

When pumping a number of oil wells,

where the power is supplied from a central pumping plant, the wells are operated by at-l taching them to surface lines running from the power plant to each of the wells.

T he surface lines consist of pull irons suspended or held upa short distance from the ground. At each revolution of the pumping power the'rods move backward and forward, thereby delivering up and ldown motion to the pumps in the wells. By this method a great many wells can be pumped Afrom one central power plant.

Very often, due to becomes necessary to extend these surface turning their direction at various angles, in order to connect them to the Well. This 1s accomplished by using a swing, mounted on bearings with the surface lines attached to both ends bythe use of a stirrup, mountedin the bearings of the same.

Heretofore only shallow wells have been pumped by this method, but from time to time greater depth wells are being attached to cene.

i tral pumping plants which necessitate amore4 rigidly constructed swing .as well as more ade uate means for lubricating the bearings of t ie same, and which isprovided for by a y pull rod coupling in accordance with this invention. l

' Further ob; ects of the invention are to prof the topography and general layout of the property, as well yas interference from highway or property lines, itl

vide, in av manner as hereinafter set forth a i i pull rod coupling which is comparatively simpleinits construction and arrangement,

view the invention consists of the novel con struction, combination and arrangement of parts as hereinafter more specificallyl de-` scribed and illustrated in the accompanying drawings wherein is shown an .embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which fall within the scope ofthe claims hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views:

Figure ll is a top plan view of a swing in accordance with this invention. Figure 2 is a section on line 2-2 Figure 1.

Figure 8 is a section on line 3 3 Figure 2.

`Figure 4 is-a section on line Figure 1.

Figure 5 is a section on line 5-.5 Figure l.

Figure 6 is a top plan viewfof vthe head piece forming a part .of the oscillatorymem-` :The oscillatory element includes a head' member referred to. generally by the reference character l andv which consists of a tubuence .character 2 and said part 2 is lformed of a pair .of end portions 3, 4 and an intermediate portion 5 whichlisfof greater diameter than Vlar part,.referred to generally by the' refer- 'l n the diameter ofthefend portions 3, 4. :The

tubular part 2 isfvertically disposed and Owing tothe intermediate part 5 v.beingof greater diameter than the end part 3,4 the `tubular :part 2 intermediate the ends thereof is provided with` .a pair of peripheral shoulders 6, 7:. The shoulder 6 is formed threugliout with an annular groove 8. The

shoulder 7, which is the lower shoulder, is square-d throughout. The intermediate part 5 is formed with a lengthwise extending groove 9 in the periphery thereof and said groove opens at one end in the groove 8 and its other end at the face'of the shoulder 7. The groove 8 provides means for collecting lubricant and the groove 9 forms a'passage for the lubricant from thev groove 8 tothe lower end portion 4: of the tubular part 2. The end portions 3, 4 provide journals for the head memberl l.

Formed integral .with the intermediate portion 5, centrally thereof, and extending at right angles with respect to each other, is a. pair of arms 10, 11 and each of said arms has both ofrits 'faces formed with lengthwise grooves 12 which open at the outer end of their respective arms and terminate at a point removed from the inner end thereof. The arms 10 and 11 are connected together by an inclined brace piece 13 formed integral therewith and arranged .forwardly with respect to the tubular part 2, see Figure 6. |The arm 10 as well as the arm 11 is provided with a plurality of spaced openings 14 in the grooved portions thereof. v

Secured to the arms 10, as well as the arm 11, is a pair of oppositely disposed channelshaped bars 15, 16v of appropriate length and which are maintained in spaced relation with respect to each other. The inner end of each pair ofbars is seated inthe grooves 12 and is `iixedly secured to the arm 1() or l1, by the holdfast devices 16 extending through' the pair of bars and also through the openings ,14. The bars 15 and 16 project from the arm 10 or 11,'see Figure 2.

Extending from one pair of bars to the other, as woll as arranged betwen each pair of bars, isY -.pair of combined bracing and spacing rods 18, having at each end terminal portion thereoffixedly securedin position by y holdfast devices 1-9. y The ends of the rods 18 are fiush with the outer side edges of the pairs of bars 15, 16. The rod 18,7in` connection with an arm 10, or 11, maintains each pair l* each other."

From the construction and arrangement of parts of thefcscillatory'element it isset up in the form of abell crank, and the 'combined Y holding or supporting, bearing and lubricat? ing means for suchelement associates with the journals-,thereof which are formed by the end portions 3, 4' of the tubular part 2. The said member 21. The member 20 includes a lubricant pocket 22 Yformedin the top thereof, a cylindrical chamberv23 for the reception of positioned below the pocket 22. The bottom 221 of the pocket22 is formed with openings 25 and 26. The diameter of the chamber 23 is slightly greater than the diameter of the end portion 3, but the diameter of such chamber is less than the diameter of the intermediate part 5v of the tubular part 2. The openings 25 and 26 are so arranged that the lubricant discharged from the pocket 22 will be equally divided, one portion going to lower bearing through tubular part 2, the remainder flowing downthe periphery orvbearing sur face on the outside diameter of the upper portion of part 1. A body of waste 27 is arranged in the pocket 22. The pocket 22 and chamber 23 are arranged in the forward part of the member 20. The inner part of the member 2O is provided with a vertically disposed concavity 28 of arcuate form to provide for the abutting of the member 20,`against a standard, post or other support 29. The width of the intermediate part of the member 2O is greater than the diameter of the post or standard 29. The intermediate-part of the member 2O is cut away at its top and bottom to form each side thereof with an upper and a lower shoulder indicated at 30, 31 respectively. By providing the intermediate portion of the member 2O with the.

shoulder 30, 31 each side of said member 20 is formed with an integral web 32 positioned between each pair of shoulders, see Figure 3. Above and below each web 32, the member 2O is formed with a lengthwise disposed opening 33 which extends from the rear edge vof the member 20 and terminates at the shoulder. The openings 32 vare positioned adjacent the concave part 28 of the member 20. The member 20 is fixedly secured to the standard or post 29 by a pair of superposed yokes 34: and each yoke extends through a pair of openings 33 and has its ends provided with clamping nuts 35 which abut against a pair of shoulders. The nuts 35 carried by the upper yoke abut against the shoulders 30 and the nuts 35 carried by the lower yoke abuts against the shoulders 31. The yokes 34 embrace the post Vor standard 29 and in connection with the nuts 35 and the shouldered portions of the member 20 fixedly secures the same in position.

The member 20 is of inverted cup-shape and the member 21 cup-shaped. The member 21 is constructed and secured in the same manner as the member 20, with this exception that it is not provided with a lubricant pocket 22 or the ports 25, 26. The member 20 acts as a means for su portino` the tubular art means includes an upper bearing member 20 p C p and a lower combined bearing and supporting 2, as well as providing a bearing therefor. The chamber formedV in the member 21 and which receives the end portion 4 of the tubular part 2, is indicated at 36. Otherwise than that as stated the construction ofthe member Y v21 is the same as the member 20.

The lubricant passing down through the tubular part 2 is collected upon the bottom 37 of the chamber 36. The lubricant passing through the port 26 and down 'between the end portion 3 of the part -2 and 'the wall of the chamber 23 falls into the groove 8 from where 'it 'is conducted by the passage 9 into the chamber 36 between the end portion 4 of the part 2and the wall of said chamber 36. The chamber 36 maybe provided With waste surrounding the end portion 4 of the part 2.

The oscillatory element Ioscillates Within the members 2O and21 and during its oscillatory movement is lubricated owing to the construction and arrangement of the members 2O and 21 and with .the setting up of the member 21 with the lubricant'pocket 22, opening 25, port 26 and further'with the setting up cf the intermediate portion ofthe tubular part 2, with the groove 8, and passage 9. The yokes 34, in connection with the nuts 35, provides the anchoring means for the combined holding or supporting, bearing and lubricating means for :the oscillatory element or swing.

The stirrup receiving, attaching and lubricating members are disposed at right angles with respect to 'each other and carried at the ends :of the oscillatory element or swing, the latter as :before stated being in the form of a bell crank.v Two of such members are shown and indicated generally at 38, 39 and each is arranged against the outer terminal portion of the inner side of a pair of bars 15, 16. As each of the stirrup receiveing, attaching .and lubricating members are of the same construction, but one will be described, asthe description of one willapply to the other. Each of ,said members vincludes a body portion 40 provided on its outer face with spaced transversely extending concavities or grooves 41, 42. The intermediate part of the body portion 4() -is of less height than the end parts thereof and each yend part is formed with a lubricant reservoir 43. Leading from the reservoir'43, at a point abovc the inner end 'wall thereof is a lubricant supply duct 44' which opens into V'a concavity or groove. rEhe ducts 44 are oppositely disposed with respect to each other and of angleshaped contour. Formed integral with the body portion 40, is a shank 45 which extends between a pair of bars 15, 16 and is ixedly secured therewith by the holdfast devices 46. Y

The pull rods are indicated at 47, 48 and the former has secured therewith a clamp 49 which 'carries the stirrup 50.V The'rod 48 has secured thereto a clamp 49 which carries the stirrups 50. The stirrups are mount-ed in the concavities or grooves 42, but they can also be mounted in the concavities or grooves 41. rlhe members 38, 39 provide means for attaching to the oscillatory element or swing, that is to say each member,

y a plurality of pull rods if desired.

All lubricant reservoirs are made integral with the part they serve, thus avoiding leakage of lubricant.

'The construction is such as to furnish suflicient lubricant for twenty-four hour operation with a single application.

All lubricant ducts are extremely short, thus lessening the liability of becoming clicked.

Both upper and lower corner or fulcrum bearings are served from a single reservoir, the design of which insures anequal distribution of lubricant without using dual reservoirs for this purpose. y

'Srtirrup boxes or attaching members are doubled to accommodate two rod lines in the same direction if necessary, each bearing being lubricated from individual reservoirs.y

This is accomplished by a duct leading from a poi-nt approximately one-halfthe depth of the reservoir and directly to the bearing surface in Contact with the stirrup in such a manner that the stirrup serves as a valve or cover for this duct to prevent escape of lubricant except as a film, which is distributed uniformly over the entire bearing surface due to the oscillating movement of these parts in actualservice. As this duct or'passage is `approximately midway of the oil reservoir, it follows that it isalso approximately midway of bearing surfaces, thereby permitting the lubricant film to travel the minimum distance to accomplish complete lubrication. That part ,of the reservoir below the outlet is useful asa catch basin for any `sediment or moisture that might accumulate due to the fact that the equipment is `always exposed to the `action of the elements. For the same reason, all lubricant reservoirs are so placed as to permit the use of a cover if desired.

hIt is thought swing, in accordance with this invention, can be readily understood, and although the preferred embodiment ofV ythe invention is as illustrated and described, yet it is to be' understood-that changes in the details ofv construction can be had which will fall within the scopeof the invention as claimed.l

i What I'elaim isz-.- y

1. A swing comprising an oscillatory element including a head piece having ournals as a part thereof and further including ya lubricant collecting groove at the inner end of one of the journals and a peripheral passage opening into and Yleading Ifrom said groove tothe other of the'journals.

2.1na swing an oscillatory element for interposition between the pullrods and inv-cluding a head piece formed of a tubular vro the many `advantages of a part havingan intermediate and a pair ofl endportions, said end portions constituting ]o. urnals,sa1d intermediate part having one end thereof formed with a lubricantcollecting groove positioned at the innerend of one of saidjournals,said intermediate part i further provided with a peripheral lengthwise disposed passage opening into and .leadpiece provided with oppositely extendingtubular journals, of a combined holding, bearing and lubricating means for said oscillatory element, said means comprising a pair oic superposed, spaced castings each formed with a ournal receiving chamber, said chambers being oppositely disposed with respect to each other, the upper of said castings provided at its top wit-h a lubricant reservoir opening at twopoints into one of said chainbers 'for supplying lubricant into and eX- teriorly of the journal within such chamber and the other of said chambers receiving lubricant through the head piece and ournals iti-om that chamber with which the lubricant reservoir communicates, and means engaging with each casting for anchoring it in position.

4. A swing comprising an oscillatory element in the form of a bell crank provided with a head piece having a pair of oppositely disposed hollow journals spaced from each other and communicating with each other, a pair of supeiposed, spaced castings each provided witli a chamber for the reception of a journal, said chambers oppositelyvdisposed with respect to each other, one of said castings provided at its top with a lubricant reservoir communicating at one point with the interior of one of saidjournals and at another point with one oit said chambers exteriorly of such journal, and said head piece provided Von its periphery with means :tor conducting lubricant tothe periphery of the other of said journals, and means for anchorin?` each of said castings in position.

5. Ina swing, an oscillatory element including a hollow head piece provided 'with oppositely extending tubular ournals, a combined holding, bearing and lubricating means for said oscillatory element, said means comprising a pair of superposed, spaced castings each lformed with a journal receiving chamber, said chambers being oppositely disposed with respect tor each other, the upper of said castings providedat its top with a lubricant j v reservoir opening at two points into one Vof said chambers for supplying lubricant into :and exteriorly of the journal in such chamber and the other of said chambers receiving lubricant through the head piece and journals Vfrom that chamber with which the lubricant Vreservoir communicates, means engaging with each casting or anchoring it in position, and pull rod stirrup receiving and attaching members carried by said element and each of said members including means to provide for the lubrication of a stirrup carried thereby.

6. In a swing an oscillatory element including a hollow head provided with a pair of oppositely disposed hollow journals, and a pair of oppositely disposed combined holding and bearing members including chambers for said journals, said members arranged in superposed, spaced relation and one provided with a lubricant reservoir and further having means for the discharge of the lubricant into one of said chambers and within and eX- teriorly of the journal in such chamber whereby the lubricant will be supplied t0 the other journal and chamber.

7. In a swing for the purpose set fort-h, a hollow head open at each end and having extended from its endst-ubular journals opening thereinto, a pair of arms integral with the head, disposed kat right angles with respect to each other and positioned on the head intermediate the ends thereof, said arms having the top and bottom thereof grooved, a pair or oppositely disposed channel bars seated in and secured to each of said arms and arianged'in spaced relation, and a brace element common to said-pairs of channel-bars and extending between and secured to the bars of each pair.

8. A swing Jfor the purpose set forth including a hollow head lformed at each end with a tubular journal opening thereinto and provided intermediate its ends with a pair of arms disposed at right angles with respect to each other, bracing means between said arms, twov pairs of flanged bars, the bars of one pair disposed at right angles with respect to the bars of the other pair, means for securing the inner ends of the bars of said pairs to the said arms, and stirrup receiving means secured at the outer ends of said pairs of'bars. In testimony whereof, I aiiiximy signature

Images