US309155A - Gearing for force-pumps - Google Patents

Description

(No Model.)

A. F. NAGLE.

GEARING FOR FOR-GE PUMPS.

No. 309,155. Patented Dec. 9, 1884.

'Unrrnn Snares Parent @FFICE.

AUGUSTUS F. NAGLE, OF CHICAGO, ILLINOIS.

GEARING FOR FORCE 'PUMPS.

ffiP'flCIFICATION forming part of Letters Patent No. 309,155, dated December 9', 1884 Application filed May 2, 1884.

To all whom it may concern:

Be it known that I, AUGUSTUS F. NAGLE, a citizen of the United States, residing at Ohicago, in the countyof Cook and State of Illinois, have invented certain new and useful Improvements in Gearing for Force-Pumps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form apart of this specification.

My present invention relates to force or pressure pumps; and it consists, essentially, in the peculiar manner of connecting the plunger with the driving mechanism, whereby the lateral thrust upon the plunger is balanced at all points of the stroke. To accomplish this the upper end of the plunger is provided with a beam secured at right angles therewith, each end of the beam having a pin adapted to engage with a link or, connection, which in turn is connected with the crank-pin of a geared shaft, all as will be more fully hereinafter set forth.

The object of this invention is to produce a pump having a balanced pressure or thrust exterior to the packing at all portions of the stroke, and at the same time being more efficient, combined with reduced cost, as compared with the commonly-used pumps having crosshead and guides.

In the accompanying sheet of drawings, Figure 1 represents a front elevation of a single-acting pump provided with my improvement, the plunger being shown about midway in its upward or suction stroke. Fig. 2 represents a side view of the same.

The following is a detailed description of the invention A in the drawings represents the frame or standard of the pump, to which all the parts are secured.

p is the bearing for the driving-shaft, the latter being provided with fast and loose pulleys G G and pinion E, as common.

p 1) represent bearings or boxes formed one on each side of the center and at the top of said frame.

(No model.)

F F are gears secured to or niounted upon the shafts F, said gears being of equal size, meshing together, and adapted to receive rotary motion by means of said pulley and pinion. Cranlepins h are secured to the gears F, the location of the former corresponding to the stroke of the plunger.

13 is the pump-barrel, provided with inlet and outlet passages, a a, and check-valves '0 o, as common.

T represents the plunger working in said barrel. braced by a beam, H, the latter preferably be ing made in two parts and'secured together by pins 0 h h, the length of the beam being represented as corresponding to the distance between the shafts F. Links I serveto connect said gears and plunger. It is now evident that the revolution of the driving-shaft in the arrow direction imparts rotary motion to the shafts F by means of said gears E F F, the latter in turn adapted to connect with the plunger by means of said links I, all as fully shown. It is further apparent that by means of this improved device the thrust upon the plunger is balanced laterally at all points of the stroke, thus adapting the plunger to move in a true vertical direction, thereby resulting inincreased efficiency and diminished cost.

I do not limit myself to the use of gears and beam having the proportionate ratio shown, as I contemplate making the beam-centers less than the distance between the gear-centers, thereby giving to the downstroke, in case of great pressure, less angular thrust. Neither do I restrict myself to the exact construction of the frame and adjacent parts represented herewith, as they may be modified without departing from the spirit of the invention; but, however, in any case, I desire to retain the de-. vice embodied by the two cranks moving in opposite directions, and the plunger provided with means for connecting said cranks for the purpose of balancing or neutralizing the lateral thrust of the plunger.

The upper end of the former is em- This device may be adapted for use in double-acting pumps, or even in other machines susceptible of its applicationsuch, for instance, as presses working a reciprocating plunger or die. I prefer in such cases to make the beam and plunger integral.

IOO

Having thus described my invention, what I claim asnew, and desire to secure by Letters Patent, isp 1. The device for converting rotary motion into reciprocating motion herein described, consisting of two oppositely-revolving geared crank-shafts suitably mounted and driven, in

combination with the head or plunger having 3. The combination in a force-pump provided with the barrel, valves, and frame, sub- 20 stantially as herein shown, of the two oppositely-revolving crank gear-wheels F, links I, and plunger '1, the latter being secured to the beam H, adapted to receive said links, the

whole arranged whereby the rotary motion of 25 said wheels F imparts reciprocating movement to the plunger, the thrust upon the latter thereby being balanced at every point of the stroke, as and for the purpose set forth.

In testimony whereof I have affixed my sigo nature in presence of two witnesses.

AUGUSTUS F. NAGLE.

Witnesses:

P. A. MONTGOMERY, W. L. BOUGHTON.

Images