US434369A - Means for operating pumping-engin es - Google Patents

Description

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J. P. WHITING.

MEANS FOR OPERATING PUMPING ENGINES.

No. 434,369. Patented Aug. 12, 1890.

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J. P. WHITNG. MEANS FOB.' OPERATING PUMPING ENGINES.

No. 434,369. Patented Aug. 12, 1890..

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UNITED STATES PATENT OFFICE.

J UNIUS F. VHITING, OF ALIBANY, OREGON.

MEANS FOR OPERATING PU'MPING-ENGINVES.

SPECIFICATION forming part of Letters Patent No. 434,369, dated August 12, 1890.

Application filed .Tune 4. 1890. Serial No. 354,261. (No model.)

To all whom t may concern:

Be it known that I, JUNIUs F. WHITING, of Albany, in the county of Linn and State of Oregon, have invented certain new and useful Improvements l in Means for Operating Pumping-Engines; and I do hereby declare that the following is a full. clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification, in which-- Figure 1 is a perspective view of my improved power-pump for forcing water or other fluids. Fig. 2 is a transverse vertical section of the same. Fig. 3 is a plan View. Fig. 4 is a side elevation, partly broken, illustrating a number of pumps operated similarly from one driving-power. Fig. 5 is a detail.

The present invention is an improvement in forcing or pumping engines, and its object is to provide mechanism whereby large volumes of Water or fluids can be lift-ed or projected by piston-pumps with a small expenditure of power; and to this end it consists in novel means for operating the pistons of a single or double cylinder pump, or a series thereof, from a single drivin g-engine or source of power, and in certain novel combinations and construction of parts whereby the power of the initial or driving engine is increased manifold and transmitted to the pumps, all of which will be clearly understood from the following description and claims.

Referring to the drawings by letter, A A designate a pair of pumping-cylinders, arranged vertically one above the other and supported on a frame W, or otherwise braced and sustained. B designates a single pistonrod, the ends of which play in the respective cylinders and are connected to the pistons c therein. The rod is of such length that pistons a a move simultaneously and properly within cylinders A A when the piston is reciprocated. The central part of rod B is enlarged and hasacoarse screW-threadb formed on it, as shown, the thread extending on the rod a length equal to the stroke of the pistons in the cylinders. This threaded portion b does not enter the stuffing-boxes on the cylinder-heads, however, as the cylinders are separated sufficiently to prevent this.

C designates a spool lying intermediate the cylinders and having a central female-threaded bore, which engages the threaded portion b of the piston-rod, and it has collars or journals c p at the ends of the bore, which engage in bearings formed in the bottom yoke D, at'- tached to frame W, and which sustains the spool, and in a top yokefd, also attached to f the frame, the piston-rods passing through the openings in said yokes, as shown,the cylinders standing respectively above and below the yokes. The lower edge of the periphery of the spool has cog-teeth E, which may be formed integral with the spool or attached thereto, and these teeth are engaged by sliding racks ff, secured to and formed on longitudinally-movable bars F F, which are supported on the frame in suitable guides or ways, as indicated, and are directly opposite each other and on opposite sides of the spool, so that when one rack-bar moves forward the other must move backward.

The'rack-bars are reciprocated in the present instance by means of pitmen G G, that are pivotally connected to the ends of the rack-bars and to wrist-pins on a pairof disks H I-I, which are mounted on a shaft journaled in proper supports at one end of frame W, the wrist-pins on said disks being relatively set at diametrically-opposite points, so that when the disks are rotated one rack-bar will be moved forward and the other simultaneously moved backward. The disks, as shown, are toothed peripherally, and are driven by a small pinion I on a shaft which is rotated by an engine or belt from an engine or motive power. (Not shown.) Other means might be employed for driving the rack-bars without varying the invention.

.I designates a rope, which is given several turns around the spool C above cog E, and its opposite ends are carried forward and connected to the rack-bars F F, respectively, or to the pitmen or wrist-pins, being guided by lugs K on the bars, as indicated, so that should one of the teeth of the rack-bars or cog E be accidentally broken there will be no jar or stoppage of the pump, as the rope Will transmit movement to the spool, and the rope is pinned to the spool to prevent its slipping thereover.

The operation is as follows: The alternate reciprocation of the bars F F imparts alternate rotary movements to spool C, and as it is confined in one position by the yokes, but is threaded on the piston-rod, necessarily the latter will be alternately raised and lowered by the forward and reverse motions of the spool. The threaded connection between the spool and piston-rod gives an enormous power to the latter in both its rising and falling motions,.and hence a greater pressure can be given to the water or iluid pumped, and a large volume can be lifted by the pump with comparatively little expenditure of power, as the power necessary to turn the spool is insignificant beside the power exerted by the piston reciprocated by the threaded connections. Of course the lifting power of the piston compared with the power exerted in rotating the spool will vary according to the pitch of the thread, and this variation can be calculated and determined beforehand, so that a machine of the requisite power can be accuratelyvplanned.Y f

It is not necessary that both the rack and cog and the rope should be used. Either would operate the pump; but where both are employed there is less loss by slipping of the parts, and the breaking of the cog or of the rope would not alone necessitate the stoppage of the machine. The racks, however, each impart direct force to the spool in both forward and backward movements.

A number of pump-cylinders constructed as described,but mounted in line on the fram e, as indicated in Fig. 4, can be simultaneously operated from one initial source of power, as is evident, by merely elongating the rackbars orproviding separate ropes foreach spool, and they can be arranged horizontally or at angles without affecting the operation.

I am aware that in various devices for converting a rotary into a reciprocating movement a reciprocating slide has been employed to impart rotary movements to a shaft or gearing by means of a male screw on the shaft and a female screw-threaded socket in the slide; but this is exactly the reverse of my object and invention, and a large amount of power is wasted, whereas inmy invention the initial power is amplified.

Having described my invention, what I claim as new, and desire to secure by Letters Patent thereon, is

l. The combination of the cylinders, the piston-rod connected to the piston therein and having a central threaded portion,with a spool having a threaded bore engaging the threads of the piston rod and the yokes confining said spool in one position, and mechanism, substantially as specified, for rotating said spool in alternate directions, as and for the purpose set forth.

2.` The combination of the cylinders, the piston-rod having a screw-threaded portion, and the spool having a threaded bore engaging the piston-rod and coniined in one position, with a reciprocating rack-bar engaging a cog on said spool for rotating the same, and mechanism for operating said rack, substantially as and for the purpose specified.

3,. The combination of a piston-rod having a screwthreaded portion with a sp'ool having a threaded bore engaging the threaded portion of the piston-rod and mounted in fixed bearings, and the devices, substantially as described, for imparting alternate rotary movements to said spool, substantially as and for the purpose described.

4. The combination of the pair of cylinders, the pistons therein, the single piston-rod having a screw-threaded portion intermediate the cylinders, with the spool engaging said threaded portion of the rod and mounted in stationary bearings, and a pair of oppositely-rcciprocating rack-bars for operating said spool, substantially as described, and the. pit-men and disks for operating said.bars, substantially as specified.

5. The combination of the main frame, the cylinders, the single piston-rod connected to the pistons of both cylindersand having an intermediate threaded portion,- the spool engaging the threaded portion of the piston-rod and mounted between` yokes connected to the frame and having cog-teeth on its periphery, and the pair ot' oppositely-reciprocating rackbars mounted in the main frame and engaging the cog-teeth at opposite sides of the spool, and the mechanism for operating said rackbars, substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my own I aiiix my signature in presence of two witnesses.

JUNIUS F. NVI-IITIN G.

Witnesses:

G. W. WRIGHT, D. R. N. BLACKBURN.

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