US8893A - Rotary - Google Patents

Description

H. G. SPALDING 8v G. STIOKNBY.

ROTARY PUMP.

Patented Apr. 20, 1852.

i'IiFFTQ 1 1 H. O. SPALDING AND G. STIGKNEY, OF HARTFORD, CONNECTICUT.

ROTARY PUMP.

Specification of Letters Patent No. 8,893, dated April 20, 1852.

To all whom it may concern:

Be it known that we, HENRY C. SPALDING and GAGE STICKNEY, of Hartford, in the county of Hartford and State of Connecticut, have invented a new and Improved Rotary Pump; and we do hereby declare that the following is a full, clear, and eXact description of the construction and operationof the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure 1, is a front view of the pump in elevation. Fig. 2, is a horizontal section of the case taken at the line X, X, Fig. 1, the flanch and shaft not being bisected. Fig. 3, is a front View in elevation, the case being out vertically through the center, and the part nearest the eye removed, a portion of the front of the eduction tube being also re moved, as also the front of the chamber im- ,mediately over the injection pipe adjoining one of the side plates and inclosing the aperture in the side plate. The screw and shaft spiral curve and forms right angles with the shaft, these portions of the fianch bear against the side plates of the case; there is an induction aperture through one of the side plates and an eduction aperture through the other and the ends of the spiral flanch above mentioned pass over and close both these apertures at necessary intervals as the flanch revolves; the ends of the fianch passing each other as the fianch makes rather more than one revolution around the shaft, the above arrangement in connection with a sliding valve (which will be hereafter described) for preventing back draft when both the apertures are open constitute the invention.

To enable others skilled in the art to make and use our invention we will proceed to describe its construction and operation.

A, is a circular case, having the side plates B, B, attached to it by screw bolts (a), in

the center of the case A, a shaft C, is placed, around which is a spiral flanch D, said fianch forming a part of a thread of a screw this will be clearly seen by referring to Figs. 2, and 3, the outer surface of this fianch works tightly againstthe inner surface of the case A, by means of any suitable packing (b); the ends (0) (0) of the fianch pass each other see Fig. 3, or in other words the flanch makes rather more than one revolution around the shaft C.

(d) is the induction aperture through the side plate B, and (c) is the eduction aperture through the side plate B, these aperturespass through the side plates at opposite points see dotted lines in Fig. 3.

E, is the induction pipe which passes into a well or reservoir, this pipe connects with a chamber F, which is attached to the side plate B, and covers the induction aperture (CZ) Figs. 2 and 3.

G, is the eduction tube attached to the side plate B, the water is forced into this tube through the eduction orifice H, is a shaft which passes through the shaft C, one end of the shaft H, fits in the center of the inner side of the side plate B, the other end passes through a stufiing box (f) at the center of the side plate B, the power is applied to this shaft.

I, is a valve which vibrates through the eduction aperture (0), this valve is pressed out of the case A, and into the eduction tube Gr, by the flanch D, as it rotates, the end (9) of the valve bearing against the side of the flanch see Figs. 2 and 3, the end (9) of the valve is so shaped as to fit snugly against the side of the fianch and conform to its curvature, and any wear caused by friction will only tend to make the end (9) of the valve sit closed to the side of the flanch.

J, is a spiral spring inclosed within the eduction tube one end bearing against the end (it) of the valve 1, this spring tends to keep the end (9) of the valve always close against the side of the flanch, one side of the valve works in a recess in the inner surface of the case A, and the other side bears closely against the shaft C, that is as much of the valve as is within the case.

The several parts of the pump are now described and the operation now remains to be described.

Power being applied to the shaft H, the flanch D, revolves within the case A, the

that the two ends of the fianch (0) are bent out of the spiral curve so that they bear against the inner surface of the side plates. By this arrangement both apertures (d) (e) are closed while the slide is thrown out from the case, as the ends (0) (0) pass each other, or the fianch makes rather more than one revolution on the shaft C, and when the end (0') adjoining the side plate B, has passed the eduction aperture the slide 1, is thrown by the spiral spring across the end of the fianch (0) adjoining the side plate B, and against the side of the fianch as seen in Fig. 2. This valve then is a cut off, and prevents any back draft or reaction when the ends (0) (0) of the fianch do not cover the induction and eduction apertures, the ends of the fianch are so bent that the induction aperture is closed till the end (0) then passes the induction aperture and the water is allowed to enter the pump;

The above arrangement of pumps is sim- ,ple, is not liable to get out of repair, and

in practice works well by employing suitable packing on the outer surface of the fianch leakage is not likely to occur and the valve works perfectly tight as the wear attendant upon friction only serves to fit the end (9) of the valve closer to the side of the fianch.

Having thus described the nature and operation of our invention, what we claim as new and desire to secure by Letters Patent, is a The spiral fianch D, working within a circular case A, said fianch being constructed as described in combination with the sliding valve I, the spiral fianch and valve operating in the manner and for the purpose substantially as herein shown and specified.

Witnesses:

CHAS. R. CHAPMAN, R. G. DRAKE.

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