US1484744A - Pump jack - Google Patents

Description

L. L. TURNEY PUMP JACK r-Feh 26 1924.

Filed Nov 10.

2 Sheets-Sheet 1 66 Z. Tuvzay Feb. 26 1924.

L. L. TURNEY PUMB JACK Filed Nov 10. 1922 Ill 2 Sheets-Sheet 2 \IL I! E i leeLfw/zcy Patented Feb. 26, 1924*.

near stars LEE L. TURNEY, OF MUSKEGON, MICHIGAN, ASSIGNOR TO THE MAXIIMOTOR COMPANY, OF MUSKEGON HEIGHTS, MICHIGAN, A CORPORATION 01? MICHIGAN.

PUTsIP JACK.

Application filed November 10, 3.922.

To all whom it may concern.

Be it known that 1, LEE L. TURNEY, a citizen of the United States, and resident of Muskegon, in the county of Muskegon and tate of Michigan, have invented certain new and useful Improvements in Pump Jacks, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to an improvement in pump jacks, and contemplates the provision of a generally improved device of this class.

Among the objects of my invention are the following:

First: The provision of a pump jack which comprises a novel arrangement of gearing which is entirely enclosed by a housing so designed as to insure perfect lubrication of the several parts of such gearing;

Second: The provision of a pump jack comprising novel means for attaching the jack to a pump stand in such a manner that the crank shaft of the jack is located immediately adjacent to the pump stand, and hence very close to the pump element which reciprocates vertically in the pump stand;

Third: The provision of a pump jack so constructed as to permit access to the several parts of the gearing, and which also provides exceptionally long and sturdy bearings for the several rotating elements of the jack;

Fourth: The provision of a pump jack which is very compact, neat in appearance, of sturdy construction, and which may be mounted in operative relation to an ordinary farm pump by unskilled labor.

Other features, objects and advantages of my invention will appear as the following detailed description progresses.

In the accompanying drawings illustrating my invention Figure 1 is a side elevational view-illustrating my improved ack in operative relation to an ordinary farm pump, the details of the connection between the jack and engine being partially illustrated in section;

Figure 2is an elevational view of that end of the jack which lies adjacent to the pump stand, and

Figure 3 is a plan view of the jack with the upper section of the housing thereof removed.

Serial No. 690,026.

Similar characters of reference refer to similar parts throughout the drawings.

Referring to the drawings, reference letter A indicates the stand of an ordinary farm pump, B'the pump rod which reciprocates vertically within the stand and projects from the upper end thereof, and G the platform whereon the pump stand is mounted.

The jack comprises a horizontally divided housing consisting of the lower orfixed section 4, and the removable or cover section 5, the said cover section being normally retained in position upon the section 4 by a plurality of bolts 5 -5 Referring now particularly to the hous ing section 4, it will be noted that it is provided with a pair of elongated bearing bosses 6 and 7 which journal'a shaft 8, each end of the shaft 8 projecting outwardly beyond the bearing boss in which it is journaled and having a crank 9 fixed thereon inany suitable manner. The cranks 9 are parallel with each other. Fixed to the shaft 8 is a bevel gear 10 which is disposed parallel with and in close proximity to that wall of the housing section 4 which carries bearing 6.

Gear 10 meshes with the teeth of the bevel portion 11 of an integral double gear, which also comprises a spur ear portion I2. This integral double gear is mounted for rotation upon shaft 13 which is disposed at right angles to the shaft 8, one end of shaft 13 hearing in one of the outer walls of housing section 4, the other end of said shaft bearing in an internal wall 14 which extends but partially across that portion of housing section 4 in which bevel gear 10 is mounted. A pin 15 is preferably provided to hold shaft 13 fixed with respect to housing section 4. The spur gear portion 12 of the integral double gear previously mentioned meshes with the pinion 16 which is fixed upon shaft 17. The shaft 1? is journaled for rotation in heavy elongated bearings bosses 1818 which form part of housingsection 4. Pinion 16 is the only rapidly 4' rotating gear in the jack train, and it should be noted that the housing section 4 is conformed to overlie pinion 16 at 16 to prevent said pinion from throwing lubricant from the jack housing when, with the gearing in operation, the cover section 5 is removed for the purpose of inspection or repair.

Shaft 17 may be connected with a source of power, usually a gasoline engine, in any suitable manner, but I prefer to connect the engine with shaft 17 through a semi-flexible connection of the type illustrated in Figure 1. This driving connection comprises a section of gas pipe .19 having its ends projecting into cups 20-20, one associated with the jack shaft 17 and the other associated with the crank shaft 21 of the engine indicated at 22. Each end of the pipe 19 has a relatively loose lit in its associated cup 20, and is capable of a certain amount of movement relative to the cup around the axis of a pivot pin 23. It will be noted that the pivot pins 23 are disposed at right angles to each other. Each of the cups 20 is provided with three screws whereby it is secured to and centered upon its associated shaft 17 or 21, as the case maybe. In prac-v tice, two of the screws of each cup are permanently set, the third screw being operable for securing the cup to its associated shaft and for properly centering the cup with respect to the shaft.

'This form of connection is inexpensive, can be installed by unskilled labor, and will compensate for reasonable misalignment of jack shaft 17 and engine shaft 21-.

It will be noted that the side walls of the housing which lie nearest the pump stand A. (these walls being indicated at 26 and 27) closely hug the shaft 8 and gear 10 respectively, the said walls being disposed substantially at right angles to each other. This relation of walls 26 and 27 to each other and to shaft 8 and gear 10 is important because permitting the jack to be rigidly attached to thepump stand in the novel and effective manner presently to be described. Formed integral with wall 26 and project .ing therefrom is a relatively heavy block or boss 28 which is spaced a substantial distance from wall 27 and is provided with an end or wedging surface 29. A bolt 30 project's outwardly from block 28.

Formed integral with the wall 27 of housing section at is a broad faced hook 31, the open side of which is presented to the wall 26. Adapted to co-operate with this hook is a clamping bar 32 having one end 33 conformed to engage in hook 31 and having its other end 34 apertured to slip over the bolt 30. It will be noted that'bar 32 is provided with a recess bounded by inclined wedging surfaces 3535 which diverge toward the wall 26.

In attaching the jack to the pump stand A, the jack housing is moved up to the stand with the latter lying against wedging surface 29 and between wall 27 and the bolt 30. The clamping bar 32 is then positioned, as shown in Figure 3, and nut 30 is turned down firmly to clamp the stand A between the wall 27 and the several wedging surfaces 29 and 3535. This construction affords an ex-' tremely rigid connection between the jack housing and pump stand, and also insures that the axis of cranks 9-9 shall lie immediately adjacent to the vertical path of the pump rod which is connected with said cranks in the manner presently to be described.

Hhe hereinbefore described device for ataching the jack housing to the pump stand is designed to accommodate the largest pump stants now in commercial use. It will be apparent, however, that the clamping device may readily be adapted to pump stands of very small diameter. by interposing a wooden block of the necessary size and shape between the stand A and the bar 32.

The lower section 4 of the housing is preferably provided with a plane bottom surface 35 adapted to rest upon thepump platform C, as shown in Figure 1. Fur thermore, the lower housing section 4 is also provided at the end which lies away from the pump stand with integral legs 37+??? provided at their lower ends with feetor flanges suitably apertured for the reception of bolts whereby the housing section i is attached to the platform C,

. as is most clearly illustrated in Figures 1 and 2., I

In practice, the jack housing is filled with lubricant, preferably ordinary transmission oil, to a level slightly below the joint between the upper and lower sections of the housing. Lubricant may be supplied or replenished to the requisite degree without removing'the upper section of the housing. This is accomplished'by removing the plugs 38 and 89 and by supplying lubricant through the hole normally closed by plug 38 until lubricant begins to run out of the opening normally closed by plug 39. If necessary, all of the lubricant contained within the jack may be withdrawn through a bottom drain opening normally closed by a suitable plug 40.

The movement of the gears maintains a v constant circulation of oil within the jack housing. Thus adequate lubrication is insured under all operating conditions.

I shall now describe the connr tl'ion between the jack cranks 9 andthe reciproeating element of the pump. Each of said cranks is provided with a crank pin 4-]. conveniently a bolt, which may be adjusted toward and away from the axis of the crank in a well lcnown manner. Each of these crank pins passes through the lower end of'a connecting rod 422 which is preferably formed of wood. The upper ends of the said connecting rods are embraced by the bifurcated ends are adjustably secured to said bar by clamp-I ing bolts 14l4-4: associated with the hifuirc cated ends of such bar. The bar 43 is proof a cross bar 43. and c ciated with said cranks for agma vided on one side of its central portion with a pair of spaced ears 45l5 carrying a bolt 46. The ears 45 -l5 lie on opposite sides of the vertically reciprocating pump rod B, and the bolt 46 passes through one of the usual plurality of apertures in said pump rod. It will be understood, of course, that bar i3 is capable of a limited amount of articulation with respect to pump rod B to compensate for the throw of the cranks 99.

When the jack is in operation, there is a tendency for the jack housing to rise each time the cranks 9 move downwardly from upper center, there being a similar tendency for the housing to move downwardly when the cranks move upwardly from lower center. In certain pump jacks of the prior art which are held in position solely by being bolted to the pump platform, the connection between the jack frame and the platform becomes loosened, with the result that the jack frame moves about when the pump is in operation, this movement being accompanied by a disagreeable noise and tending to derange the operating parts of the jack.

Having thus illustrated my invention, what I claim is new and desire to secure by Letters Patent of the United States is:

1. A pump jack comprising a closed housing, a reducing train within said housing, said train comprising a crank shaft which extends through the housing, said housing comprising a pair of side walls which are disposed substantially at right angles to each other and which form an external angle, that portion of the crank shaft which is contained within the housing lying immediately adjacent to one of said walls, means associated with the housing for clamping said walls closely and fixedly to a pump stand with the latter lying in said angle, cranks upon the outer ends of said crank shaft, and means for transmitting motion from said cranks to a pump rod.

2. A pump ack comprising a closed housing, a reducing train within the housing, a crank shaft forming part of said reducing train and extending through the housing, cranks upon the ends of said crank shaft, two of the side walls of said housing being disposed substantially at right angles to each other and forming an external angle, means associated with the housing for clamping said walls closely and fixedly to a pump stand disposed in said angle, and means assotransmitting motion therefrom to a pump rod.

A pump jack comprising a closed housing, a reducing train within the housing, a crank shaft mounted in and extending from the housing, two of the side walls of said housing being disposed substantially at right angles to each other and forming an external angle, a bolt projecting outwardly from one of said walls, said bolt being sub stantially parallel to and spaced from the other of said side walls, a hook carried by the last mentioned wall and disposed opposite said bolt, a clamp having one end adapted to engage said hook and its other end adapted to engage said bolt, a nut for moving said clamp relatively to said bolt, said clamp and associated parts constituting means for rigidly securing said housing to a pump stand with the latter disposed in the external angle between said walls, and means for transmitting motion from said crank shaft to a pump rod reciprocating in said stand.

4:. In combination with a pump comprising a vertical stand and a pump rod reciprocating therein and projecting from the upper end thereof, a pump jack comprising a closed housing, a train of reducing gears within the housing, a shaft to which the last gear of the train is fixed, said shaft extending from opposite sides of the housing, cranks upon the extremities of said shaft, connecting rods for transmitting motion from said cranks to the pump rod, one of the side walls of said housing lying immediately adjacent to said shaft, and means for clamping said wall closely and fixedly to the pump stand.

5. A pump jack comprising a horizontally divided closed housing, a train of reducing gears disposed within the lower section of the housing, a shaft to which the last gear of the train is fixed and which extends from opposite sides of the housing, cranks on the ends of said shaft, connecting rods for transmitting motion from said cranks to a vertically reciprocating pump rod, means for clamping the lower housing section closely and fixedly to a pump stand within which the aforesaid pump rod operates, and means for detachably securing the upper housing section to the lower housing section.

6. A pump jack comprising a closed housing consisting of upper and lower sections, three shaft-s within the lower housing section, two of said shafts being parallel to each other, the third shaft being at right angles to the others, said third shaft extending from opposite sides of the lower housing section, a spur pinion fixed on one of said parallel shafts, a double gear carried by the other of said parallel shafts, said double gear comprising spur and beveled teeth, the spur teeth of said double gear meshing with the teeth of said spur pinion, a bevel gear fixed to the third shaft and co-operating with the beveled teeth of said double gear, cranks upon the extremities of said third shaft, connecting rods for transmitting motion from said cranks to a vertically reciprocating pump rod, means for clamping said lower housing section closely and fixedly to a pump stand within which the aforesaid pump rod operates, and means for holding the upper housing section upon the lower housing section.

7. In combination, a pump jack comprising a closed housing, a train of reducing gears within said housing, said housing comprising two side walls which are disposed substantially at right angles to each other and form an external angle, a pump having the stand thereof disposed in said angle and in immediate proximity to said walls, clamping means associated with the housing for drawing said walls into close and fixed relation to said pump stand, said reducing train comprising a crank shaft which extends crank shaft, said pump comprising a vertically reciprocating pump rod operating within and projecting upwardly from said pump stand, and connecting rods affording a driving connection between said cranks and said pump rod.

In witness whereof, I hereuntosubscribe my name this 6th day of November, 1922.

, LEE L. TURNEY. \"Vitnesses Hams E. GREPIN, Jossri-I T. RILEY. Y

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