US1027052A - Pump-operating mechanism. - Google Patents

Description

T. J. JOHNSON.

PUMP OPERATING MEGHANISM.

APPLIOATION FILED 116.212) 1911.

Patented May 21, 1912.-

2 SHEETS-SHEET 1.

Patented May 21, 1912.

2 SHEETS-SHEET 2.

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UNITED STATES PATENT OFFICE.

THOMAS J'. JOHNSON, OF NORMAN, OKLAHOMA.

PUMP-OPERATING MECHANISM.

To all whom it may concern.

Be it known that I, THOMAS J. JOHNSON,

citizen of the United States, residing at Norman, in the county of Cleveland and State of Oklahoma, hove invented certain new and useful Improvements in Pump-Operating Mechanism, of which the following is a specification.

This invention has relation to pump op erating mechanisms, and has for its object to provide in combination with two pump cylinders mounted for reeiprocation with pistons mounted for reciprocation therein, mechanism for simultaneously reciprocating the cylinders and the pistons, the pistons being arranged to move at a slower rate of speed than the cylinders which contain them. By such an arrangement two pump factors are put approximately in counterbalance one with the other, whereby the downward movement of one serves to assist the lifting of the other, and vice versa, thereby uniformly distributing the power throughout the complete stroke.

For a full understanding of the invention reference is to be had to the following description and accompanying drawings in which:

Figure l is a side elevation of two pumps with the pumping mechanism applied thereto; Fig. 2 is a side elevation of the same viewing the pumps at a right angle to the View shown in Fig. 1; Fig. 3 is a horizontal sectional view of the same; Fig. 4 is a detail perspective view of the upper end portion of one of the pump cylinders; Fig. 5 is a side elevation of a modified form of the pumping mechanism; and Fig. 6 is a side elevation of the same form of pumping mechanism illustrated in Figs. 1, 2 and 3 showing the same applied to another style of pump.

Corresponding and like parts are referred to in the following description and indicated in all the views of the accompanying drawings by the same reference characters.

As illustrated in Figs. 1, 2, 3 and 4 of the drawings, the pumps consist of cylinders 1 which are provided at their upper ends with caps 2. Vertically disposed rods 3 are located at the opposite sides of the cylinder 1 and pass through the side portions of the caps 2, and serve as guides for the said caps and cylinders. Pistons 4 are arranged for reciprocatory movement in the lower por- Specification of Letters Patent.

Application filed August 22, 1911.

Patented May 21, 1912. Serial No. 645,358.

tions of the cylinders 1 and are attached to i the lower ends of piston rods 5. These rods 5 are connected at their upper end portions with rack bars 6 which pass through the tops of the caps 2. A rack bar 7 is attached to the inner portion of each of the caps 2.

A bracket 8 is supported above the upper ends of the cylinder 1 and carries a pulley 9. A cable 10 is trained over the pulley 9 and brackets 11 are attached to its ends. Pulleys 12 are journaled in the brackets 11. Cables 13 are attached at one end to the upper ends of the rack bars 6 and are trained over the pulleys 12 and at their upper ends are secured to the caps 2. A shaft 14 is carried by each of the caps 2 and a journaled gear wheel 15 is mounted upon each shaft 14 and is connected at its side with a gear wheel 16. The gear wheels 15 are of greater diameter than the gear wheels 16 and the gear wheel 15 carried by one cap 2mesheswitl1 the rack bar 7 carried by the other cap 2, and the gear wheel 16 carried by each cap 2 meshes with the rack bar 6 which is slidably mounted in the same cap. A roller 17 is journaled in each of the caps 2 and is located against the outer side of the rack bar 6 in the same cap and serves as means to hold the teeth of the rack bar in engagement with the teeth of the gear wheel 16.

The parts are so arranged that when one of the cylinders 1 is in elevated position the other cylinder is in a lowered position, and vice versa. Also when each cylinder is in its lowermost position the piston 4 located therein is at the lower end of its stroke in that cylinder, and when the cylinder is at its highest position the piston therein is at the upper end of its stroke therein.

Any suitable means may be provided for reciprocating the cylinders and the pistons. The means shown in Fig. 1 consists of a crank shaft 18 which is journaled in a suitable support and which is provided with a handle 19. A rod 20 connects the free end portion of the shaft 18 with one of the end portions of one of the cables 13. Therefore it will be seen that when the shaft 18 is rotated the cable 13 will be moved longitudinally whereby the rack bar 6 is moved vertically along the side of the gear wheel 16. This through the rod 5 moves the piston 4 within the cylinder 1. At the same time the wheel 15 rotates with the wheel 16, and

inasmuch as it meshes with the rack bar 7 carried by the other cap 2 the last mentioned -rack bar and its cap are moved which moves the cable 10 around-the pulleys 9 and the first mentioned cylinder is lifted and lowered, depending upon the direction of rotation of shaft 18. The said cylinder moves faster than the piston 4 contained therein, and consequently a column of water in the cylinder is lifted within the same. Therefore as the cylinder 1 shown at the right hand portion of Fig. 1 is elevated the cylinder 1 at the left hand portion of the said figure is lowered, and during its downward movement the gear wheel 15 attached to the cylinder at the left is rotated by being in contact with the rack bar 7 carried upon the cap of the cylinder at the right. This last mentioned gear wheel 15 rotates the gear wheel 16 attached thereto which in turn moves the rack bar 6 with which it is meshing in a downward direction at a slower rate of speed than that at which the cylinder at the left is descending, and consequently the piston in the cylinder at the leftpasses under the column of water which is trapped in the lower portion of the said cylinder above the valve 21 with which each cylinder is provided. Therefore itwill be seen that the pump factors and the operating parts are so assembled that the power to operate the factors is uniformly distributed throughout the complete pumping stroke. It is to be understood that these pumps are the same size and weight so that when the two are reciprocated the water in the down moving pump cylinder serves as power to help lift the water in the up moving pump cylinder, and to this extent it lessens the power necessarily required to lift the water under other conditions.

Inthe form of pump as shown in Fig. 6 the same form of mechanism for operating the cylinders and pistons as that just described is employed, but in this form of pump the cylinders 1 communicate at their upper ends with a reservoir 22 which is provided with a discharge outlet 23. The water passes from the cylindersV 1 into the reservoir 22, from whence it passes through the outlet 23 in a steady stream.

In the form of operating mechanism as shown in Fig. 5 the racks 7 are not attached to the caps 2, but are mounted upon fixed supports 24:. Otherwise the mechanism in this form of the invention is the Y same as that shown in Figs. 1 to 3, inclusive,

and the operation of the pump cylinders and pistons yis the same.

This pump together with its operating mechanism may be used to advantage for farm purposes, water works, railroads, for draining overiowed lands, irrigation etc.

Having thus described the invention what is claimed asnew is:

1. A pump comprising two cylinders mounted for reciprocation and having pistons slidably mounted therein, caps mounted upon the upper ends of the cylinders, wheels connected in pairs and journaled in the caps, one member of each pair being operatively connected with the piston in the same cylinder upon which the pairof wheels is supported, and means for rotating the other wheels of the pairs as the cylinders reciprocate.

2. In combination with two cylinders mounted for reciprocation with pistons slidably mounted therein, and an operating means located at the upper end of each cylinder and consisting of gear wheels of difaul diameter being operatively engaged with t-he y piston rod and the gear wheel of larger diameter being operatively connected with the other cylinder.

3. In combination with cylinders mounted for reciprocation and pistons slidably mounted therein, an operating means located at the upper end of each cylinder and consisting of gear wheels of different diameters, one of which is operatively engaged with the piston rod and the other of which is operatively connected with the other cylinder, a cable connected at one end with the upper end of each piston rod and at its other end with the cylinder in which the said rod is located, and a cable mounted for movement over a pulley located above bothV cylinders and carrying at its ends pulleys over which the first mentioned cables are trained.

t. In combination with cylinders mounted for reciprocation and pistons slidabljyT mounted therein, an operating mechanism located at the upper end of each cylinder diameters, one of which operatively engages the piston rod and the other operatively engages the other cylinder, a pulley j ournaled above the cylinders, a cable trained over said pulley, pulleys carried at the ends of said cable, cables attached at one end to the upper ends of the piston rods and trained over the last mentioned pulleys and connected at their other ends with the upper portions of the cylinders in which the said piston rods are located, and means connected with one of the last mentioned cables to move the same longitudinally.

In testimony whereof, I affix my signature in presence of two witnesses.

Witnesses:

A. R. CLEMENT, QI. F. BENKE.

Copies of this patient may-be obtained for ve cents each, by addressing the Commissionercf Patents, Washington, D. C.

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