US944221A - Water-motor. - Google Patents

Description

W. G. STOWELL.

WATER MOTOR.

APPLICATION FILED JAN. 1a, 1900.

944,221 Patented De.21,19o9

2 SHEETS-SHEET 1.y

JUWEL M 42 a 4l 3; Vg f" W. Gr. STOWELL.

WATER MOTOR.

APrLIoATIoN FILED 3,111.18, 1909.

944,221 Patented Dec. 21, 1909.

2 SHEETS-SHEET Z.

UNiTED STATES PATENT onirica.

WILLIAM GrL .STOWELL, OF DAYTON, OHIO, ASSIGNOR TO THE W. Gr.` STOWELL CO., OF DAYTON, OHIO, A CORPORATION F OHIO.

WATER-MOTOR.

SpeciiicationY of Letters Patent.

Application filed J' anuary 18, 1909. Serial No. 472,975.

-To all whom it may concern:

Be it known that I, WILLIAM Gr, STOWELL, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Water-Motors,

" of which the following is a specification.

My invention relates to hydraulic motors and more particularly to motors of the oscillating type adapted to be connected direct tothe machines to be driven and especially adapted for driving Washing machines.

The object of the invention is to simplify the structure as well as the means and mode of operation of such' motors whereby they will not only be cheapened in construction but will be more positive and efficient in operation and unlikely to get out of repair. p A further object of the invention 1s to provide improved means of controlling the valves whereby the water pressure will be employed to alternately reverse the valves at the limit of the stroke of the prime mover in each direction. l

A further object is to provide an improved form of packing forthe oscillator or prime mover.

With the above primary and other incidental objects in view as will more fully appear in the specification, the invention consists of certain features of construction, parts and combinations thereof and the mode of operation or their equivalents, as hereinafter described and set forth in the claims. Y l

Referring to the drawings, Figure l is a perspective view ofthe assembled motor. Fig. 2 is a transverse sectional view on line a' of Fig. 3. Fig. 3 is a vertical sectional View on line y y of Fig. 2. Fig. 4 is a vertical sectional view on line a e ofvFig. 3.

Like parts are indicated by similar characters of reference throughout the several views.

In constructing the motor there is employed a frame or casing comprising two intersecting cylindrical bodies 1 and 2, the respective axes of which are arranged at right angles to each other. The cylindrical.

- trolling valves and the operating mechanism therefor. The body 1 of the casing is provided with a cover or head 3 in which is formed a bearing 4 for the oscillator or prime mover. A corresponding recess or depression 5 is formed in the bottom of the member 1` which constitutes the opposite bearing for the oscillator. A Wall or septum 6 is radially located within the member 1 and in conjunction with the oscillator divides the chamber into two non-communicating chambers. The water supply under pressure is admitted alternately to the said chambers and causes the oscillator to move in alternate directions about its bearings 4 and 5 throughout an arc of substantially two hundred and forty degrees.

The oscillator comprises a sleeve 7 engaging at the top and bottom in the bearings 4 and 5 and from which sleeve projects an integral wing 8 substantiallyy conforming in outline to the interior Walls of the member 1. The wing 8 extends radially within the member 1 and is moved about its pivotal point by the water pressure directed alternately to opposite sides thereof. The wing 8 is rabbeted about its exterior for the reception of strips of packing 9. The packing 9 may be of leather, rubber, or other material, and is secured in place by plates 10 attached to the wing 8 and adapted to clamp the packing in place. The packing strips 9 are substantially right vangles in cross section, formingl a peripheral flange about each side of the oscillator whereby the oscillator will be substantially double concave. WVhen subject to the water pressure, the flexible flanges formed by the packing strips 9 tend to force outward and into close contact with the walls of the member 1. The reater the Water pressure the closer the pacling strips 9 will cling to the walls, thus effectually preventing the leakage of the water between the oscillator and the walls of the member 1 into the opposite chamber.

Stop arms 11 are provided on each side of the oscillator which arms engage the wall or septum 6 and limit the movement of the oscillator in eitherv direction. The wall or septum 6 is provided with a verticalgroove at its extremity in which-is located a strip '7 of the oscillator.

12 of packing material. Thel packing material 12 isfolded upon itself, the olded edge being inserted within the groove of the wall or septum, the opposite edges of the strip of packing being separated so that they project in opposite direct-ions and bear uponthe sleeve The packing 12 like the strips of packing 9 of the oscillator conform closely to the surface of the sleeve 7 when subject to the water pressure. The packing 12 can best be described as being Y shaped in cross section, the arms of which engage the sleeve of the oscillator, while thestem is engaged by the wall or septum 6.l

Themain or drive shaft extends through a hub or boss 13 in the bottom of the member 1 and through the sleeve 7 of the oscillator to which it is secured by pinning as at 14, or in any other suitablemanner. wWithin the interior of the head 3 of the member 1 and above the bearing 4 is provided an annular chamber 15 for the reception of-the lubricant. The cylinder 2 is provided at opposite ends with heads 16 and is divided centrally by a valve compartment into two chambers 18 and 19, which connect respeclator as tively with the chambers of the member 1 at the opposite sides of the septum 6 and oscilbefore mentioned. vThe valve compartment dividing the cylinder 2 is itself Y divided into two non-communicating chambers 20 and 2l. Located in the chamber 2O is a double reciprocating inlet` valve 22,

opposite seats for which are formed on the inner sides of two bushings 23 screw-threaded in the opposite walls of the ,valve compartment. The external diameter of the bushi ings 23 is such that when either of said 24. This outlet bushings is vremoved from the valve compartment, the`valve 22 may readily withdraw from the chamber 20.

Located in the chamber 21 of the valve compartment is a reciprocating outlet valve valve 24 is mounted in a bushing 25 screw-threaded into 'the walls of the compartment. Valve seats` are provided on the opposite ends of the bushing 25 for the outlet valve -24. The bushing .25 is further provided with an orifice or transverse openings 26 connected with the interior of the chamber 21. The external diameter of the bushing 25 is equal to or greater than the diameter of the heads of the valve 24. By' unscrewing the valve bushing 25 from the valve compartment, the outlet valve 24 will be removed therewith. Both the inlet valve and the outlet valve are provided With valve stems 27 projecting in opposite directions beyond the respective bushings. Yokes 28 are loosely mounted on the valve stems 27 and connect the corresponding ends of the respective valves.

An inlet conduit 29 1s provided which leads into the inlet chamber 20 and an out- 19 of the cylinder 2,

'Will pass and let conduit 30 leads from the outlet chamber 21. The arrangement is such that with the valves in the position shown in Fig. 4 the infleaving water will be permitted to pass through the inlet valve 22 into the chamber and thence through the opening 31 between the cylinder 2 and the member 1 into one of the chambers of the member 1, and thereby causing the oscillator to move about its pivotal connections. The exhaustor spent water in the advance of the oscillator will pass through the opening 32 from the member 1 into the chamber 18 of the cylinder 2 and thence through the outlet valve 24 to the openings 26 into the valve chamber 21 and thence through the off-take conduit 30. When .the oscillator reaches the limit of its stroke the valves will be reversed and the oscillator will be moved in the opposite direction by the Water entering through the inlet valve into the chamber 18v and thence into the member 1, the exhaust water flowing throughvthe member 1 through the .opening 31 into the chamber 19 and thence through the outlet valve. To provide means for quickly and' positively reversing the valves atl the limit of the stroke of the oscillator is one of the several important'features of the present invention.

Each of the heads 1'6 of the cylinder 2. is

projected inward in the form of a sleeve 33 'within which is mounted a reciprocating piston head 34. The piston head 34 is provided with a central stem 35 projecting beyond the said head and adapted to engage the transverse yoke 28 when the head 34 is moved to its innermostposition. Located about, the stem 35 of each o the heads 34 is a helical spring 36 adapted to engage yoke 28 prior to the engagement thereof by the stem 35. In each of the heads 16 at the outer side of the iston head 34 is provided an annular cham er 37. A conduit 38 in the Wall of the member 1 together with an, intersecting port 39 in said wallforms a means of communication between the annuthe transverse lar member 37 and they interior of the member 1. The piston head 34 is provided with a lug or projection 40 adapted to engage the inner side of the head 16and limit the'outward movement of the head 34.

As the oscillator reaches the limit of its stroke as shown in dotted lines, Fig. 2, it uncover the port 39. The water under pressure which has moved the oscillator to the limit ,of its stroke will flow through the port 39 and the conduit 38 into the annular chamber 37 upon the piston head 34 and will force said piston head 34 inward, compressing the helical spring 36 until the stem '35 contacts the transverse yoke 28 of the inlet and outlet valves.` This position is shown at the left in Fig. 4. Upon a slightadditional movement of the piston head 34 due to the Water pressure the inlet and outlet valves 22 and 24 will be positively moved to unseat said valves after which the expansion of the helical spring 36 will complete the movement of the valves or carry them to the opposite seats. This will reverse the direction of the flow of the Water. In Fig. 4 the parts are shown in such position as to indicate that the piston head 34 has been partially operated, that is, it has been moved by the water pressure entering through the conduit 38 into the chamber 37 sufficient to bring the stem 35 into contact with the yoke 28 and to compress the helical spring 36, but has not yet moved sufficient to unseat the valves. As shown in said figure, the water supply is flowing through the inlet valve into the chamber 19. Upon the reversal of the valves by. the slight additional movement of the head 34, the water supply will be deflected into the chamber 18, the outlet valve being open to the chamber 19 to permit the outflow of the water from said chamber.

rlhe first action of the water when admitted to the chamber 18 will be to return the piston head 34 to its normal position as shown at the right in Fig. 4 by exerting a pressure on the inner side of said piston head. The water pressure then being exerted against the oscillator will move the oscillator to the opposite limit of its stroke where the same action may be repeated upon the oscillator reaching a point to uncover the opposite port 39. To* facilitate .the manufacture of the motor lugs, or bosses 41 have been provided on the sides of the member 1 and the conduit 38 has been formed in said lugs by drilling longitudinally through the lug 41 and thefport 39 has been drilled so as to intersect the conduit 38. The extremity of the conduit 38 has then been closed by a plug or screw 42 inserted therein.

It is obvious that the port and conduit might be formed by coring the casting or by other processes.

While the valve mechanism as shown and described herein is especially desirable when used in connection with the oscillating or gearless type of motor, it is equally adaptable to other types of motors and I, therefore, do not Wish to limit myself to the use of this valve mechanism in any particular type of motor.

Having thus described my invention, I claim:

1. In a motor of the type specified, a motor casing consisting of two cylindrical casings providing a main chamber and valve chambers, inlet and exhaust ports between said main chamber and valve chambers, and by-passes between the main chamber and the outer ends of the valve chambers, an oscillator and a septum in the main chamber dividing it into two non; communicating chambers, inlet and exhaust valves in said valve chambers controlling the inlet and exhaust ports, plungers actuated by the fluid enteringthe valve casing through the bypasses to initially move the valves, and springs carried by said plungers and adapted to impart the final movement to said valves after being thus initially moved, and to thereby reverse said valves.

2. In a motor of the type specified, a casing, an oscillator and a septum within said casing, a valve casing united to the said casing, inlet and exhaust` ports between said casing and the valve casing, inlet and exhaust valves mounted in said valve, casing and adapted to alternately change the direction of the fiow of the motive fluid to and from said casing, heads inclosing the ends of the valve casing and provided with chambers which communicate with the main 'chamber of the motor by means of by-passes,

plungers mounted in the said heads of the valve casing and adapted to be alternately actuatedto initially move the valves, and springs supported on said plungers to impart the final movement of the valves and to thereby change the course of the motive fluid to and from the chamber in the main casing of the motor.

3. In a Water motor, a casing, a prime mover Within said casing, valves controlling the flow of Water tothe opposite sides of' said prime mover, a valve casing within which said valves are located, heads in said valve casing having chambers therein, pistons mounted in said chambers, yokes connecting said valves, stems on said pistons adapted to engage saidyokes and by the movement of the piston unseat the valves, springs carried by said pistons adapted to engage said yokes prior to the engagement of said stems, and to be placed under tension by the movement of said pistons, and further a'dapted to complete the movement of the valves after they'have been unseated by the movement of' the pistons,- and means Jfor admitting water to the piston chambers at predetermined times.

4. In "a iuid motor, a casing, a prime mover, valves controlling the flow of water to and from the opposite sides of said prime mover, and means for unseating said valves by the water pressure as the prime mover approaches the limit of its stroke in either direction, in combination with springs for completing the movement of said valves after they have been unseated.

5. In a fluid motor, a casing, a prime mover, inlet and exhaust valves, pistons adapted to be moved by the Water pressure at Vpredetermined points in the prime movers stroke and to unseat said valves, in combination with springs which complete the movement of said valves after said In testimony whereof, I havehereunto set valves areunseated. my hand this 12 day of January A. D. 10

6. In a fluid motor, a. easing, a prime 1909. mover double puppet inlet and exhaust 5 valves; pistons, by-passes for admitting Wa- WILLIAM G Srl OWELL ter to operate said pistons to unseat said Witnesses: valves, and springs to completely seat Said HARRY F. NOLAN,

vulves. F. L. WALKER.

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