US1031072A - Rotary pump. - Google Patents

Description

J. R KINNEY.

ROTARY PUMP. APPLICATION FILED D120. 21, 1908. RENEWED NOV. 20, 1911. 2.,

Patented July 2, 1912.

2 SHEETS-SHEET 1.

LU3LU7 J. R. KINN BY. ROTARY PUMP. APPLICATION FILED D30. 21, 1908. RENEWED NOV. 20, 1911. o Patented July 2, 1912.

2 SHEETS-SHEET 2.

Jnsrosn. rmnnr, or noncnnsrna; irassaeriusn'r'rs. 1

30mm rum;

warms.

Specification of Letters Patent.

Patented July 2; 1912.

Application filed December 21, 1908, Serial No. 468,658: Renewed November 20, 1911. Serial No. 661,422.-

To all whom tt'ma/y concern:

Be it known that I, J USTUS R. KINNEY, a citizen of the United States of America, and

a resident of Dorchester, in the countylof pivoted blade in contact with the periphery ofthe piston under any desired" tension.

parts which reference to i The invention consists in certainnovel features of construction and-arrangement of will be readily understood by the description of the drawings and to the claims hereinafter given.

Of the drawings: Figure 1 represents a vertical section of a pump. embodying the features of this inventlon, the cutting plane Fig. 2. Fig. 2 reprebeing on line 11 on the cutting plane sents a horizontal section,

being on line 22 on Fig. 1, and Fig. 3 rep;

resents a horizontal section, the cutting plane being on line 3-3 on Fig. '1. 4

Similar characters designate like artsthroughout the several figures of the raw- Tn the drawings, 10 represents the casing of a pump embodying t e features of this invention provided with the inlet 11 and the outlet 12 while the interior thereof is provided with a chamber 13. In the chamber 13 is mounted an eccentric piston 14, this piston being keyed to a shaft 15 mounted in suitable packed bearings 16 formed upon the end plates 17 secured to the main casing 10 by means of a plurality of screws 18.

The casing 10 is provided with the flanges 19 having openings 20 therein by which the pump may be secured in position. The shaft 15 is provided with reduced ends 21 having splines or key-ways 22 by which any suitable pulley or gear (not shown) may be secured to the shaft for the purpose of driving the same. Each side wall of the piston 14 is provided with an annular groove 23 m which is mounted a packing ring 24 forced outwardly against the mner face of the end plates 17 by a plurality of springs 25 each inserted in a hole in the piston 14. The casing 10 is also provided with a chamber 26 communicatin with the piston chamber 13. Within an at each side of effective means for retaining a with" a seat 27 in each of which is adapted to rest an enlarged cylindrical end or trunnion 28 of a member 29, these cylindrical ends or trunnions forming a suitable pivot about which said member may be moved within the-chamber 26, the opposite end of said member'being provided with a surface 30 concentric to the axis of said ends 28. This surface 30 bears against a concentric sun face .formed upon' the inner wall of said chamber 26 and is securely packed at this point by means of the packing member 31 forced outwardly into contact with the surface 30 by means of the spring 32.

The free end of the member 29'is provided with a blade 33 the outer end of which is formed at an angle to the main part thereof sothat the surface which contacts with the surface of the piston 14 is substantially tangential to said periphery. Mounte in the casing'lO above said blade 29 is a chambered bolt 34 threaded to the casing 10 so that it may beadjusted longitudinally. The inner end of the bolt 34 is tubular as at 35 and within the cylindrical chamber of said bolt is mounted a cylindrical chambored plunger 36, the chamber of which c0n tains a spring 37 which is adapted to force said plungeroutwardly into contact with the member 29-to insure positive contact at all times between the blade 33 and the pethe piston 14. It is obvious that the bolt 34 in either direction the tension 0 the spring 37 may be varied to. suit varying conditions in the operation of the pump. 7

The member 29 is of open construction so that the water or other material being pumped-may pass from the inlet pipe 11 through the blade 29 ofthe chamber 13 and be forced by the revolution of the piston 14 through the outlet pipe 12, the spring 37 acting u on the member 29- to retain the blade 33 1n contact with the periphery of the piston 14'during this operation so as to prevent any leakage at this point. A better result is found to be obtained by making the contacting portion of the blade 33 substantially tangential to'the periphery of the piston 14, any tendency of the liquid topass by the blade 33 back into the inlet chamber 26 bein overcome by the action of the liquid upon t e tangential portion of the blade 33 to retain it in firmer contact.

The provision of the seat 27 in which the riphery of by turning member 29. rests without necessitating the same, power bein 'ble shaft of said lston.

provision of any bearings for the pivots of said member simplifies the construction of the pum quite materially and overcomes many ditiiculties in its operation and any tendency for the liquid to leak throu h the bearing parts where such are provide The construction of the spring plunger mechanism for retaining the blade 33 in contact with the periphery of the piston is such as to make it very effective in 1ts operation and ada ted for adjustment to vary the tension of 518 spring as desired.

It is obvious that thedevice described and shown may be used equally as well as a motor by admitting a motive agent to the piston chamber and causing arotation of the taken from the' revolu- It is believed t at from the foregoing the operation and manyadvantages of the invention will be fully understood without further description.

Having thus described my invention, I claim: v

1. In a device of the class described, the combination of a casing having a cylindrical chamber; a revoluble shaft centrally positioned therein; a cylindrical piston eccentricall mounted on said shaft with one portion 0 its periphery in contact with the wall of said chamber; an inlet chamber one wall of which is provided with a pair of alined shallow seats; a pivoted blade .within said inlet chamber'and provided'with two alined cylindrical projections normally resting'in said seats; an inlet passage through said blade connecting said inlet chamber with said piston chamber; a memberthreaded to -v1ded with a. semi-spherical end bearing upon a flat face of said ivoted blade and retaining it in its seat an in contact with said rotar piston. V V y 2; n a device of the class described, the combination of a casing having a cylindrical chamber; a revoluble shaft centrally. positioned therein; a cylindrical piston eccentri'callv mounted on said shaft with one portion of its periphery in contact with the'wall V of said chamber; an inlet chamber one wall of which is provided with a air of alined shallow seats; a pivoted bla e within said inlet chamber and provided with two alined cylindrical projections normally resting in said seats; an inlet assage through said blade connecting said inlet chamber with said piston chamber; a member threaded to said casing opposite said pivoted blade and provided with a. cylindrical chamber; a tuular plunger in said chamber provided I with a semi-spherical end bearing upon a flat face'of said pivoted blade and retaining itin its seat and in-contact withsaid rotary piston; and a spring in said tubular plunger bearing against'the inner end of said chamber. 7

Signed by me at 4 Post Oflice Sq., Boston, Mass, this 14th da of December, 1908.- STUS 'R. KINNEY. Witnesses:

Emu G. 0mm), WALTER E. Lounann.

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