US868703A - Pump. - Google Patents

Description

A. J. ROSS & M. J. MORTON.

PUMP.

APPLICATION FILED MAR. a, 1906.

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PATBNTED OCT. 22, 190?.

INVENTORS.

No. 868,703. PATENTED OGT. 22, 1907. A. J. ROSS & M. J. MORTON.

PUMP.

APPLIOAT'ION FILED MAR. a. 1906.

2 SHEETS-SHEET 2.

Attorneys,

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UNITED STATES PATENT OFFICE.

ANDI-t EW J'. ROSS AND MARSHALL J. MORTON, OF PIONEER, CALIFORNIA; SAID MORTON ASSIGNOR TO SAID ROSS.

PUMP.

Specification of Letters Patent.

Patented Oct. 22, 1907.

Application filed March 3,1906. Serial No. 304,120.

To all whom it may concern:

lie it known that we, Annnnw J. Ross and MAR- SHALL J. MoirroN, citizens of the United States of America, and residents of Pioneer, county of Kern, State 01' California, have invented certain new and useful Improvements in Pumps, 01' which the following is a full and clear specification, reference being had to the accompanying drawings, in which Figure I is a side elevation showing the outlet pipe in cross section; Fig 2 is a plan view partly in section, the section being taken on the line 22 of Fig. 1; Fig. 1% a vertical longitudinal section, partly in side elevation; Fig. 4 a vertical section on the line aa of Fig. 2, parts of the pump cylinders being broken away to show the positions oi the two pistons; Fig. 5 is a ver tical section on the line bb 01' Fig. 2; Fig. (i a view similar to Fig. l but showing the cylinders and the ports in their opposite position; Fig. 7 a view similar to Fig. 5 but with the ports in their opposite position; Figv 8 a vertical transverse section on the line 8-8 oi Fig. 3; and Fig. 9 a view similar to Fig. 6 showing the construction more in detail.

The object o'l this invention is to provide a simple and powerful apparatus which will furnish a large and continuous stream of water at a high pressure, as more fully hereinafter set forth.

To the acconiplislinient of this object and such others as may hereinafter appear, the invention consists of the parts and combination of parts hereinafter iully described and particularly pointed out in the appended claims, reference being had to the accompanying drawings forming a part of this specification, in which the same reference chantcters designate like parts throughout the several views.

Rel'errin g to the drawings annexed by referencechara'cters, the letters A and B designate two pump cylinders constituting the pump barrel and connected to gcthcr at their inner ends by a transverse cylindrical chamber C which extends laterally from the pump cylinders and forms oppositely projecting hollow trun nions lettered respectively 0 and (1 whose end walls are closed by screw heads. Vertically across the chamber C is arranged an inipcrforate partition c, the ends of this partition extending to the end walls of the trunnion chambers, thereby not only dividing said chamber into two parts but also separating the two pump cylind ers from each other. The trunnion chambers are closed except for the provision of two pairs of ports a and c, the ports (1 serving as inlet ports and the two on the other side serving as outlet ports, or vice versa. The ports of each pair are arranged on opposite sides of the partition c The hollow trunnions [it and Work in cylindrical bearings .l'ormed in the upper ends of the supporting pedestals ll and I) bolted to base G by bolts g. These cup or cylindrical shaped bearings are each closed by a solid wall at its outer side but in its under side each cylindrical bearing is provided with a pair of ports adapted to register with the ports in the under side of the hollow trunnions. 'lhe ports in the pedestal E are ltllltl'Gd e and the ports in the pedestal D are lettered d and these ports communicate respectively with chambers 0 and (1 formed in the pedestals, and the chamber 0 communicates with the outlet pipe 0 while the other chamber (1 communicates with the inlet pipe d.

In the cylinder A works the pistons P and in the other cylinder works a companion plunger P, and these two plungers are connected rigidly together by the long rods p and the cross-bars p and p Attached to one of the cross-bars p is a bearing 19 and connected to this bearing is the wrist-pin of a crank arm F carried by the shaft oi the belt pulley W which is adapted to be driven by any suitable power.

In operation the rotation of the crank F not only oscillates the pump barrel on its hollow trunnions but simultaneously reciprocates the plungers alternately in opposite directions. As the plungers, alternately reciprocate in opposite directions they alternately draw in and force out the liquid, the ingress taking place at one side of the pump and the egress taking place at the opposite side, the ports being so arranged that one pair of inlet ports will always be open and one pair of outlet ports will be discharging, thus providing for a continuous stream of water. i

The arrangement of the hollow trunnions permits ports of ample capacity to be employed thereby insuring not only a continuous supply of water but also a large volume. By the employment of the central partition and the ports at the sides of the pump, it will be observed that the plungers are permitted to work close up to the center of the pump, thereby obtaining the greatest capacity possible with a given length of pump barrel. It will be observed also that the construction is exceedingly simple and durable, there being no valves, in the true sense, employed; and it will be iurthcr observed that wear will be reduced to a minimum and that even when it takes place to a considerable degree there will be little or no leakage in view of the employment of the closed-ended trunnions and closed-ended bearing cups and the further fact that the trunnions continually wear their own seats in the supporting cylinders.

As shown in Fig. 9, a series of rollers Z may be interposed between the upper side of each trunnion and a wear plate L supported in the bearing, for the purpose of relieving friction, these being especially desirable since when the pump is working under heavy pressure there is a strong tendency for it to rise in its bearings and thus cause leakage at the valve seats. The bearing plate L is preferably fitted into an upward enlargement or bulge d formed in the upper side of the bearing, and it is rendered adjustable by means of a set-screw N, by means of which the bearing plate may be kept pressed down on the rollers to maintain a tight joint at the valve seat. As also shown in Fig. 9, the valve seats may be provided with linings of suitable hard metal, one lining, J, being attached to the trunnion and the other lining, H, being attached to the bearing. Horizontal ribs (1 are formed in each bearing to hold the lining H in place and to assist in forming a dead space around the upper hall of the trunnion. The linings are of course provided with ports corresponding with the ports in the trunnions and the bearings, a series of" ports being shown in Fig. 9 on each side of the partition 0' instead of single ports as shown in the other ligures, the ports in the lining J being designated by j and the ports in lining H being designated by h.

It will be apparent to those skilled in the art that various mechanical embodiments of the invention are possible and we, therefore, do not wish to be limited to theexactlarrangement and construction shown.

What we claim and desire to secure by Letters Patent is 1. In combination, a pair of pump cylinders connected together at their inner ends by a chamber and open at their outer ends, this chamber having lateral supporting parts and provided with a central impert'orate partition extending across the chamber, thereby dividing the chamber into two parts and also separating the pump cylinders from each other, ports leading into the chamber at opposite sides of the pump and opposite sides of the partition, means for supporting; these lateral parts, this supporting means bcingprovided with ports adapted to alternately register with the ports aforesaid, a plunger working in each cylinder, means connecting the plunger-s, and power driven means for actuating the plungers and oscillating the pump barrel.

2. In combination, a pair of pump cylinders connected together at their inner ends by a chamber, this chamber having lateral cylindrical hollow trunnions whose outer ends are closed and whose under sides are each provided with a pair of ports, a vertical imperforate partition extending across the chamber between said ports, thereby dividing the chamber into two parts and also separating the pump cylinders from each other a stationary cup-like cyliudrical bearing adapted to embrace and cover the end of each trunnion, the under side of this hearing being provided with ports, inlet and outlet chambers connected with these latter ports, connected plungcrs working in the cylinders, and suitable operating means.

3. In combination, a pair of pump cylinders connected together at their inner ends by a chamber, this chamber having lateral cylindrical hollow trunnions whose outer ends are closed and whose under sides are each provided with a pair of ports, a vertical imperlorate partition ex tending across the chamber between said ports, thereby dividing the chamber into two parts and also separating the two pump cylinders from each other a stationary cylin drical cup-like bearing adapted to embrace and cover the end of each trunnion, the under side of this bearing being provided with ports, a series of rollers between the upper side of each trunnion and the top of the cylindrical bearing, and means for exerting a pressure downward on these rollers, inlet and outlet chambers connected with these latter ports, connected plungers working in the cylinders, and suitable operating means.

4. In a pump of the type set forth, a pair of pump cylindcrs connected together at their inner ends and having lateral hollow trunnions, connected pistons working in the cylinders and means for simultaneously operating these pistons in opposite directions and oscillating the cylinders on said hollow trunnions, inlet and exhaust ports in the under sides of said hollow trunnions, an imperforate partition extending across the hollow trunnions between the ports, stationary cylindrical bearings embracing said hollow trunnions and provided with ports adapted to register with the ports in the trunnions, and adjustable hntifriction pressure devices between the upper sides of the trunnions and the upper sides of the inclosiug bearings, whereby the trunnions are adjustably held down to their seats in the lower sides of the stationary bearings, for the purposes set forth.

In testimony whereof we hereunto aflix our signatures in the presence of two witnesses this 24 day of February 1006.

ANDREW .T. ROSS. MARSHALL J. MORTON. Witnesses L. A. Ross, C. A. HOME.

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