US294210A - Self and w - Google Patents

Description

2 Sheets Sheet 1.

(Nbmodel.)

J. W. DOUGLAS.

PUMP.

No. 294,210. Patented Peb. 26, 1884.

Inv/enfra?? @Tage/Woutgla @me 6.

2 'Sheets-Sheet 2.

(Ne Medel.)

J. W.`DOUGLAS.

PUMP.

No. 294,210. Peteeted Peb. 26, 1884.

N. PETERS. mwxefunwmpner. wnehmemn. u c

raras' afirmar @einen JOSEPH IV. DOUGLAS, OF MIDDLETOW'N, CONNECTICUT, ASSIGNOR TO HIM- S'ELF AND W. t B. DOUGLAS, OF SAME PLACE.

PUMP.

SPECIFICATION forming part of Letters Patent No. 294,210, dated February 26, 1884.-.

Application filed April 1853. (Xo model.) l

all whom, may ceiwczt.-

.Be it known that I, J osnrn: W'. DoUcLAs, a citizen of the United States, residing at Middletown, in the` county of Middlesex and St-ate of Connecticut, have invented new and useful Improvements in Pumps, of which t-he following is a specification.

Myinvention relates to that class of attachments for pumps whereby the Water raised by io the action of the plunger may either be discharged through the nozzle or `be diverted through a branch p ipe and delivered at any desired point at pleasure.

The object of my invention is to improve such class of pumps by passing the plungerrod ofthe pump through both of the tva-ten Ways ofthe three-way cock, said Waterlivays forming eontinuations et' the Water-pipe leading to the Water stratum. This I accomplish 2O in the manner and by the means hereinafter described and claimed, and illustrated in the accompanying drawings, in which Figure l is a central longitudinal section taken through a pump of ordinary construev tion, having the tube, together with the cylinder and plunger, attached. Fig. 2 is a central vertical section ot' Fig. 3. Fig.3 is a side elevation of the attachment shown in section in Fig. 2. Fig. 4t is a central vertical section, 3o showing a further modification; and Fig. 5 a detached sectional view, showingv modiiied means for operating the three-way valve.

A in said drawings designates the pump, which may be ol' any ordinary pattern7 hav- 3 5 ing a dischargespout, B, and handle C. The latter is linked directly to the plunger-rod D. which passes down through the open body of the pump to the point Where it unites with the plunger E. These parts do not differ in 4o. any respect from thewell-known constructions in ordinary use.

F indicates a short section, which is interposed in the pump-tube at any suitable point above the plungerE and the chamber or cylinder in which it moves. This part F is provided with suitable fittings, whereby it may be threaded upon the ends of the pump-tube, and it forms the Water-Ways G G for a three- Way valve, H, having a seat, I, upon Which it 5o turns, and provided with openings i it, Op-

posite the valve-seat I a branch, L, enters the part F, having a short seat vfor the valve at the points a c and giving said valve the nec essary support. The plunger-rod D passes through an opening, I, inthe central part ofthe 55 body of thesection F. No stuilingboxes are used, the Water-packing being all that is required. Even should the Water escape between the plungerrod and the sides of the Wall through which it passes, it will not affect the operation, since it readily leaks back through the freezing-hole, which is always above the three-Way valve. The valve H is operated by an arm, M, which has one end united with the spindle of the valve. By lifting the opposite end the valve may be turned so as to. cut off the current ot' water from the branch pipe L and direct it through the Water-ways G- G to the spout of the pump. This arm M may be operated bya rod, N, passing down through the platformor Hoor, upon Which the pump stands, and pivotally connected With said arm, as at m.

In Fig. lv the plunger-rod is shown passing through the Waterways of the interposed seetion-pipe and without packing-boxes. For all ordinary constructions this answers every purpose, and by operating the pump in the usual manner Water may be delivered at the spout B, or by changing the three-Way valve 8o II it may be directed through thebra-nch pipe L and carried to any desired point. W'hen it is desired, however, to force the Water to a point above the level of the pump, orto ob= tain a head7 or -pressure upon the stream S5 issuing through the branch pipe, it may be necessary to pack the plungeraod, and this I propose to accomplish by either of the following constructions. Y

F, Figs. 2 and 3, represents the section-pipe 9o shown in Fig. l, having .the water-Ways G G and the bran ch pipe L, together With the three- Way valve II, having its seats formed in the manner already described. Instead, however, of casting the structure with a solid continuous body of metal between'the two Water-Ways, through which the plunger-rod passes Without packing, as in Fig. l, I propose to pass the rod through the Walls d d, one or both of which may be provided with a suitable stufiing-box. Ioo

2 QEDLQH@ In the figures referred to I have shown one gland and box only through which the rod passes placed in the lowerl wall. A convenient form of construction is to form the lower the section-pipe F is C-shaped,'the three-way valve H being seated in the center of the long upright arm. L represents the branch pipe, and

P I? the ends of the pumptube, between which the section F is interposed, each extremity of the latter having a short vertically-arranged head, It, one end of which receives the end of the pump-tube P, while into the other end is screwed a stuiiing-box, g. This box is cupshaped, and has a female thread cut within to receive a gland, L, which closely surrounds thepiston-rod D. The end of said gland entering the box is concaved, as shown at m', whereby the packing in the box will, as the gland is screwed down, be wedged or driven closely against the rod, thereby making a perfectly-tight joint, and the outer ends of the glands are cupped, as shown in said figure.

It will readily be seen that Vby this construction the pump may be used as a forcepump at either the branch pipe or the spout I5.

The value and importance of this invention are evident. It is often necessary to carry water to different points, in manufacturing operations, in farming and stock-raising, as well as in other callings. By my invention this may be accomplished without the expense of a complete special apparatus, since the attachment may be applied to any ordinary pump at very small expense.

In Fig. 5 I have illustrated modiiied means for operating the three-way valve. In this example the cock II stands vertically in the section F, and has an annular head, a', for receiving the socketed end b of the rod c', the latter having a suitable handle, (l, at its upper end, located within convenient reach, which I arrangement is simple and efficient.

In most yard-pumps now manufactured the pump tube or barrel is made continuous and straight from end to end, and the plungera'od passes directly through the same. By my in vention I am enabled to apply the three-way valve or cock to this style of pump without material reconstruction of the tube or barrel rately-working structure, reducing the cost of manufacture, and avoiding the employment of a separate discharge-pipe leading from the pump tube or barrel to the three-way valve,

as usual. Further, the valve can be applied to any of the usual constructions of pumps, and if attached to one style of pumpstandard it can be changed to another style without extra fittings, and as the plunger-rod is inclosed within the pump-tube and the waterways of the valve, the rod is not liable to become bent or injured, but is at all times retained in alignment with the tube and waterways.

Having thus described my invention, what I claim is- The combination, with a pump-tube,v of a three-.way valve or cock having a lateral c branch pipe, and provided with two waterways arranged in alignment and introduced into the pump-tube to form straight continuations thereof, and a plunger-rod passing directly through the pump-tube from its top portion, and also through both the aligned water-ways of the three-way valve'or cock, substantially as described.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JOSEPH XV. DOUGLAS. lVitnesses:

E. G. CAMP, G. A. CRAIG.

Images