US96099A - Improvement in pumps - Google Patents

Description

, tion in any proper manner.

'ilniteil fetales aient ottico.

Letters Patent No. 96,099, dated Octubcr 26, 1869.

The Schedule referred to in these Letters Patent and making parl: of the same.

ing to be a full, cleannd exact description of thel vsaine, reference being had to the accompanyingdrawings, which make part of this specification, and in which i Figure l is an elevation of a pump, embracing my @mpio ve ments Figure 2 represents a vertical longitudinal section of the pump, on an enlarged scale, the .valve being shown as closed;

Figure 3 represents a similar section, the valve being shown as raised byits connection with the hollow plunger; and

Figure 4 represents a view of the under siderof the hollow plunger, showing the cross-bar and springv catch. for sustaining and operating the valve-opener and closer.

My improvements relate to the construction of that class of pumps which receives and forces the water by a hollow plunger moving within n oylindrical case; and

consist in the construction and arrangement of a, de,

vice for opening and closing the valve by the movement of said plunger, as will be more fully hereinafter described.

In the accompanying drawings- A represents the case, which is placed at the bot-- tom of the well, cistern, or other place, so as to be immersed in the water, and provided with a cylindrical opening, of proper size, to receive a hollow plunger, B.

This case may be supported in its immersed posi- Its lower end is fitted with a cylindrical core or stopper, C, also provided with a cylindrical opening of much less diameter than that of the case, to form a seat'for the valve, and for -the purpose of admitting the water into the case, and

to receive a vertical stem, D, to which the valve is secured. The plunger is fitted to move within this case, so as to render it water-tight, and is of a length about equal to that of the case in which it is enclosed. It is also provided with a central opening, extending throughout its length, to receive and discharge the water. rlhe upper end of the case is open, so as to admit of the movement ofthe plunger within said case.

This plunger is connected to a shaft, or follower, E, which extends above the case a' suitable distance, to allow it to be operated by gearing mounted in a frame, F, placed above the oistern, or other place from which the water is to be forced.

This gearing-consists of a rack', G, secured to the rshaft or follower E of the plunger, and a pinion, g, mounted on a short shaft or axis, H, supported in suitable bearings in the frame, and matching into the teeth of said rack.

On one end of this axis H is placed a ratchet-wheel, I, and upon the same end of the axis, a lever, J, is also placed, having its end forked, so as to embrace the ratchc t-wlieel, and to receive a dog, j, which may be thrown into and out of gear with the teeth of the ratchet, for the purpose of raising the plunger, land to allow it to be forced vdownward to discharge the water.

The dog j is held in gear with the teeth by meansA of a spring, It, as the plunger is being lifted, and held out of gear by a cord, l, attached thereto, and hooked over a pin, m, on the lever J, when the plunger is being forced down.

In the latter case, the lever is locked eccentrically with the Iratchet-wheel I, by means of a pin passing through the lever into holesA in the wheel. The plunger, however, may be provided with a weight, by which it may be forced down with or without the :iid of the lever.

As the plunger is being lifted by the ratchet, dog2 and wheel, it may be held up by means of a ratchetpawl, p, hinged to the base of the frame F, so as to tit into any one of a series of ratchet-teeth, q, in the side of the follower E, as shown by red lilies iu tig. 1, and thus prevent it from descending while the dog ot' the lever moves over the ratchet-teeth.

The discharging-pipe L moves with the plunger, Y

and is connected to the'uppcr end of its central opening. It rises above the frame, and is supported and guided in'its movement by it.

These parts may be constructed and arranged as represented and described, or any other' suitable devices for Voperating the plunger may be adopted, to snit the purposes for and position in which the pump may be used.

The packing, for rendering the plunger water-tight at the upper end of the case, consists of a leatherring, M, fitted between the plunger and the case, the latter being made Haring forthat purpose, and is held in place by an annular follower, N, fitted around the plunger so as to bear upon said leather packing.

lThis annular follower is held down by means of four arms 0, tted in dovetail-notehes on the exterior of the oase, so that their upper ends extend over and upon the circular follower, which, of course, keeps the packing in place.A The packing may be forced down, if necessary, by wedges intervened between the ends of the arms and the annular follower.

The particular feature of my invention, however, is thevalve-opener and closer, which consists of a rod or bar, P, connected with and extending from the npper face of the valve, provided witha series of teeth` of rounding form, and fitted within an openingin a. cross-piece, It, at the lower open end of the plunger B, so as to move up and down within said plunger.

Its connection, however, with4 the plunger is not fixed, but is eiected by means of a spring-tooth, a, fitted in the cross-bar It, through which the toothed rod P passes, so as to bite into the teeth of the latter, and thus effect a ryielding connection between the plunger and the valve Q, the ltooth being held in Ithe notches ot' the bar by means of a spring, b.

To allow of the proper operation of the yielding connection of the plunger and the valve, the lower stem D ofthe latter must be of a length to admitof a movement of the valve above its seat, of about four inches, to allow the water to enter the case, and this movement is limited by a stop, c, at the lower;4 end of said stem, coming in contact' with the bottom of the valve-seat.'

The lower valvestem is slotted, in order to allow the .water to enterfreely around its sides and through its middle, while the lower end ofthe plunger is made flaring, so as to allow the water to enter freely into the plunger. The length of the toothed rod is sufficient. to allow of the full upward stroke of the plunger, and still maintain its yielding connection therewith.

The operation of opening and closing the valve is as follows:

rlhe plunger being down, and the valve closed upon its seat, the first four inches, or thereabout, of the upward movement of said plunger will lift the valve, by means of the yielding connection, and allow the water to enter the case, and as the plunger continues to rise, the spring-tooth a will yield, and slip over the rounding teeth of the bar P, and thus continue to hold the valve open while the plunger rises to the extent of its upward stroke, during which the water, seeking its level, rises and lls the case.

The movement of the plunger is nowreversed, and the rst four inches, or thereabout, of its descent, carries also with it the valve Q down upon Aits seat C,

case. The yielding connection ot' the spring-tooth a then allows the plunger to readily descend and force ythe water up through it, and out of the dischargingtube L. This latter position of the parts is shown in iig. 2, while that of opening the valve by the ascent of the plunger, is shown in tig. 3 of they drawings.

This arrangement of opening and closing the valve with, Iv have 'found to be o f great advantage, and to possess a power to force the water toa great distance.

Having thus described my invention,

I claim- I ,1. The hollow plunger B, united directly to the valve'f.)J of the pump, by means of a yielding connec- 2. The lower valve-stem D, having a stop, c, for ai'-v resting the ascent of the valve, substantially as de- JAMES O. RAYMOND.

thus closing it, and confining the water within the by the yielding direct connection of the plunger theretion, for thepurpose substantially as before described.'

scribed, in combination with the yieldingft'omleoti`y

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