US175012A - Improvement in pumps - Google Patents

Description

J'. BEWSHER..

PUMP.

No.175,01z. Patented March 21,1876.

N. PETERS, PHOTO-LIYHOGRFMER, WASNNGYON. D. C4

UNTTED STATES PATENT EEICEL JAMES BEWSHER, OF KASAS CITY, MISSOURI, ASSIGNOR OF ONE-HALF HIS RIGHT TO JOHN SHAW, OF SAME PLAGE.

IMPROVEMENT IN PUMPS.

Specification forming part of Letters Patent No. 175,012, dated March 21,1876; application filed August 7, 1875.

To all whom 'it may concern Be it known that I, JAMES BEWSHEE, of'

Kansas City, Missouri, have invented certain Improvements in Pumps for pumping water mixed with sand or other granular material, of which the following is a specification:

The object of my invention is to construct a simple and effective apparatus for pumping water mixed with sander other 'granular sub,

detached views, illustrating diii'erent features. of my invention.

A represents part of the frame-work of the.

` apparatus, and to the upper end of this framework is attached a pump-barrel, B, provided with a plunger, D, and communicating with a pipe, E, which acts both as a suction and 'discharge pipe, as described hereafter. The end of the pum p-barrel B is also provided with a chest, a, containing a check-valve, a', and with a cock, b, the construction of which is illustrated more fully in Fig. 3. At one side of the pump-barrel B is arranged a smaller supplementary pump, F, provided with a plunger, which is operated through the medium of an arm, c, attached to the plunger ofthe main pump. The pump F has an inlet-pipe, d, and an outlet-pipe, e, the latter forming-acommnnication between said pump F and the main pump B, and being provided with a checky valve, f, acted on by a spring, for a purpose explained hereafter. The construction of the check-valvef is illustrated in Fig. 4. To the base Gr of the apparatus are attached cylindrical casings, inclosing chambers H H', (two in the present instance,) the former chamber communicating at the top with the pipe E, and at the bottom with an inlet-pipe, g, through which the sand and water are drawn. This pipe g projects for a considerable distance above the bottom of the chamber H, and its upper end is provided with a valve, h, and projects into a tapering receiver, I, which communicates at its lower end with a passage, i, formed in the base Gr. The opposite end of this passage communicates with a pipe, g', similar to the pipe g, provided with a valve, It', and extending into a tapering receiver, I', contained in the chamber H', the lower end of this receiver communicating with a passage, fi', into the outer end of which is screwed the dischargepipe j. Within the chamber H, immediately below the opening of the pipe E, and between it and the top of the tube g, is arranged a concave-convex screen or shield, fm,` the objectof which will be rendered apparent hereafter. The lower end of the pipe g is .provided with an agitator, K, the upper end of which is so secured to said pipe that it can be turned freely thereon by means of its operating-handle n, and its bottom being perforated and provided with a series of curved varies, p, so that by .partially rotating -the agitato", the sand will be stirred up and caused to pass up with the water into the tube g.

The operation of the above-described apparatus is as follows: The chambers H and HL are arranged either above or below the surface of the water, the pump B and its connections being always above the surface. When the operation is rst commenced the cock b is opened, the plunger of the pump B is then drawn back, and the pump-barrel consequently filled with air from the pipe E. When the plunger is forced in, this air is expelled through the check-valve a and cock b,`

and as this operation is repeated a partial vacuum is created in the pipe E and chamber H, which causes a rise of sand and water into and its discharge from the tube g. The water fills the chamber H and rises in the pipe E, and lls the pump-barrel B, the sand, however, striking the guard or shield lm., and passing down through the tapering receiver I.

When the pump-barrel B becomes full of water the cock b is closed, and the body of water within the barrel is then alternately forced from the pump into the pipe E and drawn back again into the pump, so that a body of water free from grit is acted on by the pump, while the sand and water is drawn through the pipe g and forced out, through the receiver I, into the pas sa,,. fi, and thence through the pipe g', receiver I', and passage i to the ontletpipe j.

The pump F receives a supply of clear water through the pipe d, and, besides aiding in the filling of the barrel of the pump B at the outset, forces a supply of water into the same during its operation, in order to prev-ent any accumulation of air which may enter through the suction-pipe, or through imperfect joints, and which might interfere with the perfect operation of the apparatus.

The pump B is prevented from drawing water from the pump F during its backward stroke, owing to the presence in the connect ing-pipe e of the check-valve f, which is acted upon by a spring, with a pressure sufcient to prevent any movement except that caused by the passage of the jet of water forced by the pump. F.

It will be observed in Fig. 1 that the inlet tubes g g project for some distance above the bottoms of the chambers H H', the object of which arrangement is to prevent the sand from interferin g with the proper closing ofthe valves, which it would do if the valves were arranged directly on the bottoms of the chambers.

In order to, prevent any lodgment of sand whatever in the chambers H H', the tapering receivers I I are employed, these receivers conducting the mixture of sand and water directly to the outlets of the chambers.

The agitator K may be operated constantly or at intervals during the operation of the apparatus, in order to cause a thorough admixt-ure of sand and water to be pumped up.

By the above-described apparatus I have frequently pumped water containing from twenty to fifty per cent. of coarse, heavy sand without any interference whatever with the proper operation of the valves, and without the access of any sand or grit to the barrel of the pump B. g

If desired, one of the chambers H H may be dispensed with, although I prefer two, as they canse a more uniform discharge than a single chamber, and in some cases, instead of `arranging the tapering respirer I Within chamber-,the receiver may he dispensed with, and the casing of the chamber itself made funnei-shaped.

I claim as my invention- 1. In a machine for pumping water mixed with sand or other granularma'teriai, the combination of a pis qu or; plunger pump, B, a suction-pipe, E, an one or more chambers H H', communicating with the discharge-passage, and provided with an inlet pipe or pipes, projecting above the bottom of the same, the various parts being so arranged and operating in Such a manner that. the mixture Qt' Stud and water will he received into and discharged from the chambers H H' without passing through the pump, all as set forth.

2. The combination of the elevated vaiveseat of the inlet-pin@ with e. tqndettot. 1, communie-ating with the dismesse-passage, as and for the esmas@ set fet-th- 2. The combinaties ai the iilletfnine y with the agiata;- K. haviug mme@ been provided with iangjes j), as ,set forth,

4- The ccmiiintitien ot the .plunger-mlm B with a supplementary nenni-tt?, connected to .said nnmli B. and Operate. ie unison with the Same. all as and fer! the newest, described- 5 The check-vanaf. arranged in. the pipe e, between the pump F and the pump B, as and for the -purpQQ destibetf 6. The cnmbiiatien et the. 990k b. and checkvtlve a with the Rump. 'B and pine E liet having a .check-valve. as and fer the paresse set forth.

7. The comhinatiqn of ythe chambers H H', their inlet-pines y a', and t nenne receivers 1 I', with passages i t" forme 'in the base Gr, as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses,

JAMES BFNVSHEl-'t- Witnesses:

WILLIAM M. sima HoMEa REED;

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