US1364017A - Pump-head drive for rotary well-pumps - Google Patents

Description

M. V. ANDREWS AND S. W. HOLMAN.

PUMP HEAD DRIVE FOR ROTARY WELL PUMPS. APPLICATION HLED MAR. 1i. 1920.

1,354,017, Patented Deo. 28,1920.

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APPLICATION FILED MAR. II. I92o. 1,340l7, v Patented D60. 28, 1920.

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MOBIL V. .ANDREVIS AND STEEHEN W. HOLMAN, 0F MARMARTH, NORTH DAKOTA, ASSIGNORS TO MORA PUMP COMPANY, OF MARMARTH. NORTH DAKOTA.

PUMP-HEAD DRIVE FOR ROTARY WELL-PUMPS.

Application filed March 11, 1920.

To all whom t may concern Be it known that we, MOBIL V. AN- Drnws and STEPHEN W. HOLMAN, citizens of the United States, residing at Marmarth, in the county of Slope and State of North Dakota, have invented certain new and useful Improvements in Pump-Head Drives for Rotary Tell-Pumps, of which the following is a specification.

rl`his invention relates to water elevating pumps, and pertains especially to operating devices or pump head mechanism for operating` rotary pumps. i

The object of the invention is to provide cooperating gears assembled within a pump head for revolving the driving shaft of a rotary pump located in a well or cistern.

A further object of the invention is to provide the driving shaft of a rotary pump with a pair of united'gears slidable on the shaft and meshing with a pair of gears having independent `driving power, and to furnish means for shifting the said united gears into mesh with one or the other of said driven gears so as to operate said shaft either by hand or motive power as desired.

A still further object of the invention is to provide a pump head having vertical shaft hangers and bearings formed therein between the hangers, and a water discharge conduit formed upon the outside of said head and adapted to be connected with a rotary pump driven by said shaft within a well.

Various other objects, advantages and irnproved results are attainable in the manufacture and practical application of the invention as will be hereinafter pointed out.

1n the accompanying drawings forming part of this application:

Figure 1 is a perspective view of a pump head showing the invention as operating a rotary pump in a well.

Fig. 2 is a vertical sectional view showing the pump shaft and operating gears in elevation.

Fig. 3 is a detail sectional view of the shifting gears and keyed end of the shaft.

Fig. 4 is a detail top view of the gearing, with the pump head in cross section.

Fig. 5 is a detail elevation of the shifting lever.

The same reference characters denote the same parts throughout the several views of the drawings.

Specification of Letters Patent.

Patented Dec. 28, 1920.

serial No. 364,961.

1n carrying out our invention we employ a hollow pump head as 1, having a suitable detachable top cover 2, and a water discharge conduit 3 to which may be coupled a water conveying pipe 4, and a pipe 5 connecting the conduit with a rotary pump as 6 located in a water well. A pair of shaft hangers is formed on the inner wallvof the head 1, and comprises a top hanger 7 forming ay journal with ball bearings 8 for a vertical driving shaft 9, and a bottom hanger 10 in which the shaft is journaled. Centrally between the hangers 7 and 10 a bearing 11 is formed on the inner face of the head wall for a shifting lever 12, hereinafter more particularly referred to. The top hanger7 has mounted on the side thereof a beveled gear 13 operated by a shaft 14 extending therefrom and proj ecting` through the head wall where it is provided with a crank handle 15. The bottom hanger 10 has the inner end of a driven shaft 16 journaled thereon, and this shaft is also journaled in the wall of the head 1 and projects therefrom for the application of a driving pulley 17. A beveled gear 18, like the gear 13, is secured to and operated by the shaft 16, on the reverse side of the bottom to that occupied by the gear 13 with respect to the top hanger, so that the shaft 9 extends vertically between the gears 13 and 18, and the shafts 14 and 16 extend at right angles to or perpendicular to the shaft 9 in opposite directions. I

In order to operate the pump shaft 9 independently either by hand or by motive power as desired, we interpose between the gears 13 and 18, a pair of beveled gears 19 and 20. The gear 19 is bolted as at 21 to a neck 22 of the gear 20, and the neck is fitted with a collar 23 having the circular yoke 24 of the shifting lever 12 pivoted thereto as at 25. The united gears 19 and 2O are slidably secured to the shaft 9 by a key 26, and the upper end of the shaft has a head piece 27 resting on the top hanger 7. The shifting lever 12 has one end as 28 fulcrumed in the bearing 11, and the other or handle end engages notches 30 in the slot 31 of the pump head through which the lever 12 projects. Other means such as a toothed rack may be used for holding the lever in adjusted positions.

Obviously by raising the hand lever 12, the gear 19 is made to mesh with the gear 13,

which is revolved by the crank handle 15 independent of the gear 18, and when the lever 12 is lowered, the gear 20 is held 1n v mesh with the gear 18 which is revolved by the driven shaft 1G, independent of the gear 13, whereby the pump shaft may be revolved in the same direction either by hand or by motive power, without altering or changing the mechanism, but by merely raising and loweringthe hand lever 12 for shifting the sliding gears into and out of mesh respectively with the driven gears 18 and 18, thus leaving one or the other of the tion of the invention as may not seem inconsistent with the appended claims.

Having thus described our invention what we claim as new and desire to secure by=Let ters Patent is:- f

1. In pump head mechanism for operating rotary well pumps, a pair of gearsmounted within the pump head, the axis plane of one gear beingabove the axis plane of the other gear and said 'gears being offset from a central vertical plane therebetween, a vertical shaft revoluble in said central plane, a pair of united gears slidably secured to said shaft, and means operated from the outside of the pump head for shifting the united gears into mesh with one or the other of the gears of said pair.

2. In pump head mechanism for operating rotary well pumps, a pair ofl gears offset horizontally and vertically with respect to each other, a rotary vertical shaft extending centrally between said gears, a pair of gears slidably keyed to the portion of the shaft between the said offset gears, and means for sliding the keyed gears so that one of the keyed gears will mesh with the offset gear adjacent thereto and the other of the keyed f' gears will mesh with the other offset gear, for revolving said shaft in the same direction.

3. ln pump head mechanism for operating rotary well pumps, a pair of gears offset horizontally and vertically with respect to each other, a rotary vertical shaft extending centrally between said gears, a pair of gears one of which has a neck extension to which the other of said gears is secured, a collar on the neck between said gears, and a hand lever pivoted to the collar and fulcrumed to the wall of the pump head for sliding said secured gears on said shaft inte and out of mesh with said offset gears.

4. A pump head having a pair of shaft hangers lspaced apart vertically and projecting inwardly ifrom the wall of said head, a fulcrum bearing in said wall centrally between the hangers, a revoluble shaft journaled in said hangers, a driven gear supported by each hanger, power-shifting gears slidable on the shaft between said driven gears, and a hand lever pivoted to the shifting gears and fulcrumed in said bearing.

5. The combination with a pump head, and a rotary well pump, of mechanism for operating the pump comprising a vertical shaft journaled in the head and connected with the pump, a pair of gears revolubly mounted in the head` with the axis of each gear perpendicular to the shaft, said gears being' spaced apart vertically on opposite sides of the shaft, a pair of pinions slidable on the shaft, an adjusting lever fulcrumed in the head and projecting therefrom for sliding the pinions into and out of mesh with the gears, means for pivotally connecting the lever with the pinions, and means for holding the lever in adjusted positions.

ln witness whereof we hereunto set our hands in the presence of two witnesses.

MORIL V. ANDREWS. STEPHEN l. HOLMAN.

Witnesses l N. A. PARK, MARTIN O. GRADY.

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