US1417418A - Rotary pump - Google Patents

Description

J. F. SMITH.

ROTARY PUMP.

APPLICATION FILED MAR. 5, 192x.

/ 1 9% 1 7 Q 1 8 Patented May .23,

STATES JOHN F. SMITH, OF WOOSTER, OHIO, ASSIGNOR OF ONE-HALF TO CHARLES M, JEFFRIES,

OF APPLE CREEK, OHIO.

ROTARY PUMP.

L HTAlS.

Application filed March 5, 1921.

To 11/] w/mm i2 may concern:

lie it known that 1, JOHN F. SMITH, a citizen of the l'nited States, residing at Wooster. in the county of \Vayne and State of Ohio. have invented a new and useful Rotary Pump. of which the following is a specification.

My invention relates to improvements in rotary pumps or engines, and particularly to improvements upon my former invention for like use set forth in Letters Patent of the l nited States, No. 1,045,754, issued thereon to me November 26, 1912, the main object" of which was to provide means for keeping the piston automatically in tight engagement with the cylinder wall of the pump at all times, irrespective of wear, and means for holding the piston on its seat in such manner as to take up its own wear automatically.

The main ob ect of my present invention is to combine with said means a simple and practical device for largely increasing the pumping capacity and for making the pump cylinder a stationary valve within itself, withot the aid of any other valves or valve connections heretofore required, and, secondly, to so construct the cylinder and its connections as to avoid the use of bolts, and provide means for threading the several parts of the mechanism together compactly so as to simplify its manufacture and increase its durability and efiiciency.

My invention consists principally of the novel construction of the pump cylinder by coring out the Walls thereofin such manner as to form cavities therein for the passage of water therethrough, and to so divide said cavities as to cause both suction and discharge .ofthe water by the revolving eccentric piston within the cylinder with each revolution of said piston; and it further consists in pro viding enlarged and more numerous openings into said cavities for the inflow and discharge of Water, thereby largely increasing the capacity of the pump,and the incidental features as hereinafter fully set forth, and stated in the appended claims.

My invention is illustrated by the accompanying drawings in which similar letters and figures of reference indicate like parts.

Referring thereto, Fig. 1 is avertical longitudinal section through the pump casing.

' Fig. 2 is a side view of the pump body, one

side being cut away for better illustration of the interior; and Fig. 3 1s a horizontal sec- Specification of Letters Patent.

Patented May 23, 1922.

Serial No. 449,997.

, disposed conical socket j at its base J, and a conical opening through its top N adapted to receive the collar I and stud H about which it is threaded, as shown in Fig. l.

The members N and J are preferably inserted separately fromthe cylinder and secured thereto by set screws t and g, respectively. Said top N is also perforated with a plurality of openings through which water is discharged upwardly from the cavity in the cylinder, as shown by the arrows a a a a. The walls of said cylinder are cored out to form cavities K K therein, which, on one side of the cylinder, open upwardly for the escape of water discharged therethrough in the direction of said arrows, and on the other side of said cylinder the cavities open downwardly through the walls, and, by suction therethrough, the water passes upwardly into and through said cavity in the direction of the arrows a a. The said cavities are divided on one side of the cylinder by a vertical diaphragm M (best shown in Fig. 2), and also by a spiral diaphragm L, whereby the water below the cylinder is drawn upand thence into the pump pipe P, by the.

action of the rotor B within the chamber of the cylinder, as hereafter more fully described. The tubular caps ,E and F are respectively connected to the top and bottom of the cylinder body A by the threaded connections shown in Fig. 1, and to the well pipes P and P by similar threaded joints, so as to make the same air tight and impervious to water; the construction of the cylinder body being such as to admit of such connection, and obviate the use of bolts as hereto fore employed, thus adapting the exterior of said body to fit within an outer casing, such as is commonly used in deep wells, but not herein shown because immaterial except incidentally. A plurality of openings O 0' along each side of the vertical diaphragm M afiord channels for suction of the water on one side of the latter, and discharge thereof on the other. To cause this action of the water the rotor B, having a frusto-conical body, and eccentrically disposed within the cylinder, as heretofore, is provided with a single flat member C, which is loosely mounted to slide laterally through a slot 7', (Fig. 3) therein, freely, in such manner as to vibrate back and forth therein with its opposite ends snugly against the inner wall of the cylinder 10 body.

The rotor B is driven rotarily in the cylinder by means of the shaft D which is secured thereto by being threaded into the stud H, the latter being held in vertical position by the collar I, which is tapered downwardly to fit the conical opening in the plate N, as aforesaid, whereby wear of the parts is taken up automatically. The collar serves the double urpose of securing the shaft D and stud B in vertical position, and a slightly wedge shaped connection of said 'stud with the conical opening in the plate N,

' forth by the eccentric action of the rotor body, thereby causing a powerful suction through the perforations O of the inner wall of the cylinder body on one side of the vertical rib or diaphragm M, and a like powerful draft outwardly and upwardly through the perforations O on the opposite side of said rib, with every revolution of said rotor. The vertical edges of the member C are preferably slotted to receive a thin wearing member d, which is kept in constant slidable connection with the inner wall of the cylinder body by the springs 61 0, shown in Fig. 3, while travelling thereon in the direction of the arrow I) through the elliptical space Gr around the rotor B.

The vertical rib or diaphragm M and the spiral diaphragm L, which are stationary within the core K in the cylinder body A, unite at top and bottom thereof, and thus afford, in connection with the cored cavities K K, improved means for suction and discharge (constituting a complete valve within said body), and more space for openings through the plates N N, for inflow and outflow ,f water, than would be otherwise possible, thus greatly increasing the capacity of the pump, and diminishin the power necessary to actuate the rotor by the shaft D, as aforesaid.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a device of the character described, the combination with a cylindrical casing, of a piston rotor seated eccentrically therein, a wing slidably mounted in said rotor adapted to conform with the wall of said conical well, while said rotor revolves; cavities within the wall of said casing, a vertical diaphragm dividing the cavities longitudinally; a spiral diaphragm in relation to said vertical diaphragm, dividing said cavities laterally; openings from said cavities inwardly on both sides of said vertical diaphragm; openings from and into said cavities above and below said spiral diaphragm, respectively, and means for actuating said piston rotor, substantially as set forth.

2. In a device of the character described, the combination with a conical well, a conical rotor mounted eccentrically therein, a laterally shiftable wing loosely mounted transversely in said rotor, cavities in the wall of the casing of said well, a vertical diaphragm, and a spiral diaphragm connected therewith, separating said cavities, openings leading into and from said cavities, respectively, above and below the spiral diaphragih, openings inwardly from said'cavities on both sides of said vertical diaphragm,

means for automatically adjusting said rotor vertically, and means for connecting said casing by threaded connections with adjacent pipe couplings above and below, substantially as set forth and for the purpose specified.

In witness whereof I hereunto set my hand at \Vooster, Ohio, this 24th day ofDecember, A. D. 1920.

JOHN F. SMITH. In presence of CHARLES C. JoNEs, HIRAM B. SwAR'rz.

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