US189830A - Improvement in pump-valves - Google Patents

Description

E. WORTHEN.-

y PUMP-VALVE. 1 ,189,830, Patented April '17, 1877.

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""trc bLPETERS. PHDTO LITHDGRAPHER, WASHINGTON D C To all ivhoni it may concern: :Be it known that I, WILLIAM'E. WoBrrHEN,

- will be noisy and destructive.

PATENT] loral,

-'-E.'- -woR'rHE"1 I, OF NEW YORK, N. Y.

term a lifeline-va ves.

Specificationfor'ming part of Laws Patent no, fsogsam'datea April 17, ls77 j-application filed i 1 "MarchQfi I877. v I

of New York city, in the Statei'of NewYork, have invented certain new ;andg u'seful Improvement's relating to Pump-Valves, of which 'thefollowing is a specification:

The object of the invention l'iis' to obtain a;

liberal water-way with only ,a slight motion,

and consequently only a-"li-ght' beat" of the valve. i

The piston: velocity ;allowablefand conseqrie'ritlythe" efficiency' of a pump of a given size, is practically determined by the area of the passage-way, and theamoiint ofli'ft ofthe valves. If the size of "theipor'ts bes'mall the water will not flow so rapidly in or out of the pump-barrel, and if the lift of the valves be large the beat in opening and seating the valves I have devised a construction in which the passages are ample and the necessary lift of the valve very small.

I employ a gridiron-valve rising and sinking on a gridiron-seat, being efficiently controlled in a parallel motion.

In some large work which I am now making according to the invention, the widths of the ports are five-eighths of an inch, and the lift only five-sixteenths. I provide for preventing the flow of the currents against each other, and cause them to be deflected smoothly upward through the spaces.

- The following is a description of what I consider the best means of carrying out the invention. The accompanying drawings form a part of this specification.

Figure 1 is a central vertical section through a pump provided with my valves. Fig. 2is a plan view of one valve or set of valves and their appurtenances. Fig. 3 is a perspective view of some of the parts detached, showing the peculiarities somewhat exaggerated.

Similar letters of reference indicate like parts in all the figures.

I piece, A, and I provide for fitting it with its several attachments complete on the bench before applying it in'the pump. There are, aslusual, separate valves controlling the induction and the eduction from each end making; four sets. A description of onewill'suffice for the whole.

I will "use the term bars to describethe separate parts of the gridiron valve," and f bridges to describe the several parts of the seat. "A number of bars, b,arecombined toge'ther by rigid connections bto oonstitute'a unit, which I designate as the valve, and will represent, when necessary, by the single letter B. Links O are pivoted'at one end to lugs on the connections b,"andat other end to rocking-shafts C. There are two of these rocking-shafts O turning in hearings in the bars D, one or both of which latter bars may be removed at will by taking out the holding-bolts d, which bind them to the removable seat A, and then the shafts O and their connections may be readily withdrawn through bonneted openings provided for thepurpose.

The number of the bars b may be increased or diminished, the seat and the other parts being correspondingly formed. I have shown four bars, I), and a corresponding number of apertures each a little narrower and shorter in the removable seat A. The lower face of each bar bis rounded. The surface of the seat A which receives it is correspondingly hollowed. The considerable ridge or elevation at in the. surface of the seat-'A, which is presented between the bars 1), serves to deflect the water when the valve is up. The current flowing from under one bar b if allowed to flow horizontally as it would on a flat seat, would strike squarely against the corresponding stream from under the adjacent bar I). The

collision of the currents would retard the motion.

My ridges a on the seat between the resting places of the bars b deflects each current smoothly upward. The united streams flow upward through the openings between the bars 1) directly and smoothly.

The pieces D perform the double functions of affording bearings for the shafts G and stops to arrest the lift of the valve B.

One or both the striking-surfaces, wherethe valve B strikes the pieces D, as also one or side of the removable seat A. A, is introduced into the body A it looks under projections in the body or in the bonnets,-

surfaces of the body A.

2 reaeso' both the surfaces where the lower faces of the.

Long and only slightly-tapering wedges E,

of iron, smoothly finished, are inclosed within casings of lead or analogous soft metal G, and matched in the recesses represented in each When a seat,

which hold the seat firmly down to the body and makes it serve as a unit. But it is highly desirable to not only hold it stiffly, but to make thejoint tight along each edge. This I accomplish by driving the tapering keys E farther vinto their soft inclosing material G. The wedge E being made considerably longer than is required is driven forcibly into the lead casing G, and the latter is caused to apply very tightly both to the interior'of the groove in the removable seat A andto the adjacent The projecting ends of the wedges or, keys E are planed off after the driving is completed. Various modifications may be made in the forms and proportions of the details by any good mechanic without departing from the principle of the invention.

I propose to m'ake'some or all of the parts of brass, where the expense will be warranted.

I claim as my inventionl. The links 0, turning on the fixed centers 0, and guiding a gridiron-valve working to,

and from a gridiron-seat, as and for the purposes specified.

2. The links 0 and shafts O in combination with the gridiron-valve B and with the bars D, performing the double functions of bear,- ings and stops, as herein specified.

3. The deflectors a. in the gridiron-seat between the bars I) of a gridiron-valve, rising and sinking thereon, as herein specified.

4.- The wedges E and soft-metal envelopes G, matched in recesses between a removable valve-seat and the body of a pump, as and for .the purposes herein specified. Y In testimony whereof I have hereunto set my hand this 24th day of March, 1877, in the,

presence of two subscribing witnesses.

' WM. E. WORTHEN.

Witnesses:

' W. L. BENNEM,

CHAS. O. STETSOIL'

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