US1309843A - Planooraph co - Google Patents

Description

w. L. DAYTON] PUMP JACK.

APPLICATION FILED MAR. 20. 1918.

'1 369,843. Patented July 15, 1919.

2 SHEETS-SHEET I.

W. L. DAYTON.

PUMP JACK.

APPLICATION FILED MAR. 20, 1918.

1,309,843. Patented July 15,- 1919.

2 SHEETSSHEET 2.

avwawto'c 7 than pump-jacks,-

WILLIAM L. DAYTON,

OF FORT WORTH, TEXAS; assienoe To GRAVITY PUMP AND' POWER. do, or FORT wont-ii, TEXAs PUMP-JACK.

Specification of Letters Patent.

Patented July 15, 1919;

Application fi1e21M arch20, 1918. Serial No. 223,483.-

T 0 all whom it may concern: H

Be it known that 1, WILLI M L. DAYTON, a citizen of the United States of America,

residing at Fort WVor'th, in the county of Tarran-t and State of Texas, have lnvented certain new and useful Improvements in Pump-Jacks, of which the following is a specification. v Y

My invention relates to pump-jacks and more particularly to certain gravity-acm ated means for increasing the power of the pumpjacks, and the Object is to provide gravityactuated devices for operating. on levers and means for causing the greatest leverage on the upstroke of the sucker rod and for causing the least leverage onthe down stroke of the sucker rod'. Another object is to proyide a power savinglattachinent for pump-jacks or means for aiding the driving power of the pump-jacks. The

advantage is that a much smaller motor can be used to operate the pump jack and the attachment ma be used on other devices as for well drilling Ina chines. Other objects be fully explained in the folflowingdescription and the invention will be more particularly pointed out t me claims.

Reference is had to the accompanying drawings which form a part of this applica tion.

Figure 1 is a side elevation-of a singleacting pum -jack provided withthe attach ments. Fig. 2 is a plan view of the same.

Fig. 3 is a side elevation of a double-act" ing pump-jack which embodies the attachments shown in the revious views. Fig. 4; is a plan view of the same. Fig: 5 is an end elevation of the pump jacks shown in Figs. 3 and A.

Similar characters of reference are used to indicate the same parts throughout theseveral views.

The pump-jack is provided with a frame in two parts 1 and 2 which parts are substantially duplicates. Each part may be a single casting or formed of a single piece. The two frame members are connected and braced by sleeved rods or bars 3, there being two of such bars on one end of the frames and three bars on the other end. The frames will also be connected and bracedby the Operating shafts. A power wheel 1' is provided with a shaft 5 which is journale'd in the frame members 1 and- 2 and a balance and advantages will wheel 6 is mountedon shaft 5. A pinion 7 is rigid with shaft 5 and this pinion drives a cog wheel 8 which is rigid with and drives thema'in crank-shaft 9. A link bar 10 is pivot'a lly connected to the crankshaft 9 and is d riven'by this shaft. The link bar 10 is to be connected to the sucker or other pull" rod. The drawings show a crank 11 rigid with shaft demonstrating pump 14. The crank 11 is connected to a link bar 12 which is connected to the sucker rod 13 of the pump 14. The crank-shaft 9 is driven by the power wheel 4 through shaft 5, pinion 7 and cog wheel 8;

The gravity attachments are connected to the shaft?) and consist of a lever 15 which is rigid with shaft 9 and a sliding weight 16 is mounted on thelever 15. The weight 16' is shifted on the lever 15 by means of a crank 17 and a-link bar 18 which is pivotally connected to'the weight-16' and pivotally connected to the crank 17. The crank 17 is rigid with the pivot spur pinion 20 is rigid with the bolt 19 and meshes with and is driven by a spur pinion 21 which is rigid with frame 1. An adjustablej weight 22 may be mounted on the lever 15 for increasing or decreasing the power of the lever.

Upon rotation of the shaft 9 and the lever 15 carrying the pinion 20, the latter will have a planetary movement around the fixed pinion 21 and also a rotation on its own axis due to its meshing" with the pinion 21 which is fixed.

When the pump jack is in action the weight 16 will be automatically actuated or 9for' operating a temporary or bolt or shaft 19 and a A shifted by the gearing 20 and 21- and the crank 171 and link bar 18. The weight 16' is shifted toward theend of the lever 15 on the upstroke to aid in liftingtheload and shifted toward the shaft 9 when there is no need of much power or when less power is reguired on the down stroke of'the suckerro The pump jack shown in Figs. 3 and 4 is adapted for operating two sucker rods instead of one. The gravity attachments are duplicates of the gravity attachments previously shown. The pump-j ack is provided with two frame members 25 and 26' which may be braced by connecting bars 27 The frames will be braced by the fulcrum bars 28 and 29 and by the power shaft 30. An Off-set bearing 31 is provided on each frame member for the power shaft 30. A power wheel 32 and a balance wheel 33 are rigid with the shaft 30.' The shaft drives pinions 34 which are rigid therewith. .The pinions 34 drive cog wheels 35 which are mounted on shafts.

or stub shafts 36 which are provided with,

bearings 37 formed on the frame members. 25 and 26. The cog wheels 35 drive or cause to be actuated walking beams 38 and 39.. The walking beam 38 is connected to one wheel 35 by a pitman rod 40 and the walking beam 39 is connected to the other wheel 35 by apitman rod 41 so that the walkingbeams 38 and 39 are positively driven from the power shaft 30. The walking beams 38- and 39 may be used to drive the type of dou-- ble acting pumps which have one sucker rod running Within the other.

Means are provided for aiding the powerdriven shaft 30. Power arms or levers 42 and 43 are rigidly mounted on the stub shafts 36 and turn with these shafts. Slid ing weights 44 and 45 are mounted on the arms 42 and 43 respectively. Pinions 46 are rigid with the frame members 25 and 26 and mesh with pinions 47 which are rigid with pivot bolts or shafts 48 which are journaled in the short arms of the levers 42 and 43. Cranks 49 and 50- are rigid with the pivot bolts 48 and pitn an bars 51 and 52 are pivotally connected to the weights 44 and 45 and to the'cranks 49 and 50 respectively. The weights 44 and 45 are shifted in the same manner as the weight 16 is shifted. The weights 44 and 45 are shifted toward and from the fulcrum or stub shafts 48 by the gear wheels 46 and 47 respectively. When the work ends of the walking beams 38 and 39 are at their lowest points, the weights 44 and 45 are at their highest points ready to aid the walking beams on the up stroke to bring up the loads.

What I claim, is,

1. A pump jack comprising a frame, a

power shaft journaled in said frame, a crank shaft journaled in said frame and gearing for driving said crank shaft from said power shaft, a sucker rod to be actu ated by said crank shaft, a lever rigid with said crank shaft, a slidable weight mounted shaft, a sucker rod to said crank shaft and on the pivot shaft of said crank for actuating said crank to reciprocate said weight on said bar.

2. A pump jack comprising a frame, a power shaft journaled in said frame, a crank shaft journaled in said frame and gearing for driving said crank shaft from said power be actuated by said crank shaft, and gravity attachments for aiding in driving said crank shaft consisting of a' lever rigid with said crank shaft, a weight slidable thereon, a crank provided with a pivot shaft journaled insaid. lever, a gear wheel rigid with said crank shaft and a gear wheel mounted on the pivot shaft of said crank and driven by the first mentioned gear wheel for actuating said crank, and a link bar pivotally connected to said crank and to said'weight for reciprocating said weight on said lever.

3. A pump jack comprising a frame, a crank shaft journaled in said frame, means for driving said crank shaft, and gravity attachments for aiding in driving said crank shaft consisting of a bar rigid with said crank shaft, a weight slidable thereon, a crank pivotally connected with said bar on the opposite side of said crank shaft from said weight, gearing for actuating said crank from said. crank shaft, and a link bar pivotally connected to said crank and to said IBveight for reciprocating said weight on said 4. A pump jack comprising a frame, a crank shaft journaled insaid frame, means for driving said crank shaft, and gravity attachments for aiding in driving said crank shaft consisting of a bar rigid with said crank shaft, a weight slidable thereon, a crank pivotally connected to said bar, gearing for actuating said crank from said crank shaft, a link bar pivotally connected to said crank and to said weight, and an adjustable weight mounted on said bar.

In testimony whereof, I set my hand, this- 21st day of January, 1918.

WILLIAM L. DAYTON.

copies if this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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