US619654A - Herbert ashley - Google Patents

Description

No. 6|9,654. Patented Feb. 14, I899.

H. ASHLEY.

PUMP.

(Application fled Aug. 26, 1898.) (No Medial.)

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'NITED STATES" PATENT OFFICE.

HERBERT ASHLEY, OF LONDON, ENGLAND.

PUMP.

SPECIFICATION forming part of Letters Patent No. 619,654, dated February 14, 1899.

Application filed August 26, 1898.

To all whom it may concern.-

Be it known that I, HERBERT ASHLEY, a subject of the Queen of Great Britain and Ireland, residing at 104 Mount Pleasant Lane, Upper Clapton, London, England, have invented certain new and useful Improvements in Pumps, (for which I applied for British Letters Patent February 9, 1898, No. 3,248,) of which the following is a specification.

My said invention has for its object to construct a pump in an improved manner and so as While thoroughly efficient in its operation to be such that easy, rapid, and certain access to the valves is at any time obtainable, such access being specially important in the case of pumps used for raising liquid from a considerable depth, as in mines or wells.

An essential feature of my invention is the application of both the inlet or suction valves and the delivery-valves to what is hereinafter termed the bucket and corresponds to an ordinary pump-bucket, but is of greater length, this bucket working in a fixed cylinder or barrel which is continued in the rising main, through which the pumped liquid ascends. Whenever access to the valves is required for examination, repair, or renewal, the bucket has simply to be drawn up through the rising main, no part of or attached to the barrel requiring to be opened or interfered with.

The accompanying drawings represent a pump as constructed according to my invention.

Figure 1 is an elevation; Fig. 2, a view showing the barrel in vertical section and the bucket in elevation; Fig. 3, an enlarged vertical section of the bucket; Fig. 4, a horizontal section of the bucket; Fig. 5, a more enlarged sectionof one of the inlet or suction valves, and Fig. 6 an inside View corresponding to Fig. 5. i

In the drawings the same reference-letters are used to mark the same or like parts wherever they are repeated.

The barrel A of the pump consists of an external cast-iron shrouding or shell provided with an inner gun-metal lining a, in which the bucket 13 works. The bucket 13 is a cylinder, the upper and lower parts I) c of which are slightly larger than the intervening part Serial No. 689,581. (No model.)

and are grooved and adapted to work as pistons in the upper and lower parts of the bar rel A. The head 5 of the bucket B is fixed to the pump-rod O by means of an internallyscrewed boss D, connected to the sides of the head by radial flanges, and in the head I) there are formed annular ports E, for closing which there are annular valves F, adapted to work within guards G, these ports and valves constitutin g the delivery-valves,which open during the downstroke of the bucket to allow liquid to pass up through them from the inte-' rior of the bucket and close during the up stroke. 7

The inlet or suction valves are fitted to the part of the bucket B between its piston-like ends, holes H, Figs. 1 and 2, being bored through the shell of the bucket to receive valve boxes J, Figs. 3, 4, and 5, which are screwed into the holes and which are provided with rubber disk valves K, secured in each case by a central bolt L, between the wheellike inner face of the box and a curved guard M. The liquid has access to the inlet or suction valves through inlet-openings N in the barrel A, these openings being at about the middle of the length of the barrel, which is immersed in the liquid to be pumped to such an extent at least as for the level of the liquid outside of the barrel to be above the inletopenings N.

The bucket Bis in Fig. 2 represented as at about half-stroke. When it rises, the space within and beneath it is enlarged and the liquid enters through the inlet-openings N and through the suction-valves J K, and at the same time liquid above the bucket is forced upward, the delivery-valves F being closed. On the descent of the bucket the suctionvalves J K become closed and liquid passes through the delivery-valves F. The rising main, of which the bottom P of the lowest length is shown in Figs. 1 and 2 as fixed by flanges to flanges at the top of the barrel A, is internally of slightly-larger diameter than the working part of the barrel, so that the bucket B can easily be drawn up through it when required.

It is obvious that in applying my invention any suitable construction or arrangement of suction-valves or delivery-valves may be em ployed which can be fitted to the bucket in a manner to be within the diameter of the barrel in which the bucket Works.

What I claim as my invention is 1. In a pump, a stationary barrel having inlet-openings in its sides for the liquid to be pumped, a bucket reciprocating within the barrel, said bucket having piston-like ends and suction-valves between said ends for admitting liquid to its interior, delivery-valves in the head of the bucket, and a rising main fixed to the barrel and of a size to allow of the bucket being raised through it, substantially as herein set forth.

2. In a pump, a reciprocating bucket having in its head annular ports with annular delivery-valves adapted thereto, suction-valves consisting of valve-boxes screwed into the sides of the bucket and having rubber disk valves and guards, a stationary barrel within which the bucket reciprocates, and in1et-openings in the sides of the barrel, all combined and operating substantially as herein set forth.

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

HERBERT ASHLEY.

Witnesses EDMUND S. SNEWIN, WM. 0. BROWN.

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