US870112A - Water-motor. - Google Patents

Description

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' WATER MOTOR. APPLIU'ATION FILED 001.1. 1906.

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UNITED STATES :PATENT ortica.

LEWIS C. LEWIS, OF COLUMBUS, OHIO, ASSIGNOR TOTHE MONARCH MANUFACTURING COM- PANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO.

WATER-MOTOR.

Specification of Letters Patent.

Patented Nov. 5, 1907..

Application led 'ictooef' 1| 1906 Serial No. 336.866.

To all whom it 'may concern:

Be it known that I, LEWIS C. Lnwis, a citizen of the United States, residing at Columbus, in the county of Franklin and State of Ohio, have invented certain new and useful Improvements in Water-Motors, of which the following is a specication.

My invention relates to water motors. A

In many instances, motors of this character are used to actuate pumps. In some sections of the country, the natural water supply is very hard and it is customary to provide water lifts in residences, said water lifts being actuated by the city water pressure and being utilized to elevate soit water from a cistern to the upper loors of the residence in which the lift is located. Since these lifts are used in residences, it is important that they should work with as little noise as possible and the present invention is designed to provide a motor for a water lift which will be absolutely noiseless in operation, the shiting oi the valves which control the water supply to the cylinder, being accomplished by water pressure and said valves being water cushioned at each end oi their stroke.

Further objects and advantages of the invention will be set orth in the detailed description which now ollows.

In the accompanying drawings: Figure l is a vertical section o a motor constructed in accordance with A the invention, illustrating the main piston at one end oi its stroke and illustrating the valves at one oi their limits of movement, Fig. 2 is a like view illustrating the piston at the opposite end ot its stroke and the valves at their opposite limit oi movement, Fig. 3 is a transverse vertical section upon line :t x o Fig. 2 looky ing in the direction indicated by the arrow, Fig. 4 is a side elevation of the valve chambers illustrating the arrangement oi the ports hereinafter described, and, Fig. 5 is a view looking trom the opposite side of said valve chambers, illustrating the arrangement oi exhaust ports hereinafter described.

Like reference numerals designate corresponding parts in all of the figures of the drawing.

Referring to the drawings, the numeral 5 designates the cylinder ol' the water motor. Mounted in this cylinder is the usual piston 6, said cylinder being secured to a piston rod 7. This piston rod may in turn be secured to any driven member, such as a pump, not shown. A stuiiing box 8 oi' the usual and well known construction, prevents leakage about the piston rod 7. The head 9 which closes the right hand end of the cylinder 5, in Fig. l, is provided with an extension l0 which has a port Il. formed therethrough. A by-pass l2 leads from the port ll to a port 13, said port being formed in a cap 14 which is secured to the end oi a casting l5. This casting 15 has valve chambers 16 and 17 formed therein, the outer ends of these chambers being closed by a web i8 and their innerl ends being closed by plugs 19. One of these plugs 19 carries a stuffing box 2O through 'which a rod 2l passes. Mounted upon the rod 2l are collars 22 and 23, the collar 23 lying inside ot the hollow piston rod 7 and said piston rod being provided with a shoulder 24 which serves a purpose hereinafter described. Slidably disposed within the valve chamber I7 is a valve 25 havingtwo heads 26 and 27, said valve being secured to the end of the rod 21. Slidably disposed within the valve chamber 16 is a valve comprising heads 28, 29, 30 and 3l, said heads being constructed in the usual manner by clamping leather disks between metallic washers. The detail construction of these heads orms no part ot' the present invention.

The sides of the casting l5 are closed by plates 32 and 33, the space which lies between the plate 32 and the walls oi the valve chambers 16 and I7, forms an exhaust chamber 34 (see Figs. l3 and 5). Exhaust ports 36 and 37 are formed in the walls of the chamber 16 and establish communication between said chamber and the exhaust chamber 34, it being understood that the exhaust pipe 35 (see Fig. 3.) communicates with this chamber, said pipe being carried by the plate 32. As is best illustrated in Figs. 3 and 4, the space which lies between the plate 33 and the walls oi the valve chambers 16 and 17 is divided into a plurality o chambers 38, 39, 40, 4l and 42 by suitable ribs 43 which are integral with the casting l5.

Attention being still directed to Fig. 4, it will be seen that a port 44 establishes communication between the chamber 38 and the port I3 of the cap I4. It will also be seen that a like port 45 establishes communication between the chamber 40 and the interior of the cylinder 5. Ports 46 establish communication between the chamber 38 and the interior o the valve chamber 16. Ports 47 establish communication between the chamber 42 and the interior ot the valve chamber 16. Ports 48 establish communication between the chamber 40 and the interior oi the valve chamber 16. A port 49 establishes communication between the chamber 39 and the interior of the valve chamber 17. between the chamber 42 and the interior ol the valve chamber I7. A port 5l establishes communication between the valve chamber 4l and the interior of the valve chamber 17. Ports 52 and 53 establish communication between the chambers 4l and 39 and the interior of the valve chamber 16 at the opposite ends thereof. Exhaust ports 54 lead from the extreme ends of the valve chamber 17 to the exhaust chamber 34. An inlet pipe y55 which is carried by the plate 33 is adapted to conduct water from any suitable source of water supply to the chamber 42.

The operation o the device is as follows: Water be- A port 50 establishes communication ing supplied to the chamber 42, we will assume that the parts are in the position illustrated in Fig. 1. At this time the piston 6 has reached its limit of movement toward the right and the shoulder 24 by striking the collar 23, has moved the rod 21 and shoved the valve 25 to the right. At this time the port 50 is in communication with the port 51 through the chamber 17, the water passing through the port 50 into said chamber, between the heads 26 and 27 of the valve 25. The water then passes out of the port 51 into the chamber 41, thence through the port 52 to the interior of the chamber 16 where it acts upon the head 3l to shift the valve of which said head forms a part, to the left in Fig. 1, or to the position illustrated in said ligure. When this is done, the ports 46 are in communication with the ports 47 through. the chamber 16, the water entering from the chamber 42 through the ports 47 to the interior of said chamber 16 between the heads 29 and 30, passing thence through the ports 46 to the chamber 38, thence through the port 44, port 13, bypass 12 and port 11 to the right hand end ofthe cylinder 5, where it acts to move the piston toward the left in Fig. 1. When this piston reaches its limit of movement toward the left in Fig. 1, the end of the piston rod strikes the collar 22 and shifts the valve rod 21 and consequently the valve 25 to the position illustrated in Fig. 2. During this movement of the piston toward the left in Fig. 1, the exhaust of the water contained in the cylinder upon the left side of the'piston, is accomplished as follows: The water to be exhausted passes through the port 45 to the chamber 40, thence through the ports 48 and between the heads 30 and 31 to the interior of the valve chamber 16.' From this chamber, the water passes through the exhaust ports 36 to the exhaust chamber 34 and thence through the exhaust pipe 35 to the waste pipe. When the valve 25 is in the position illustrated in Fig. 2, communication is established between the ports 49 and 50. The water then enters from the chamber 42 through the port 50 to the valve chamber 17 and between the heads 26 and 27. It passes from said chamber through the port 49 which has now been uncovered by the head 27 and brought into communication with the port 50, into the chamber 39. 1t passes from the chamber 39 through the port 53 to the chamber 16 where it acts upon the head 28 to shift said head and the valve of which said head forms a part, to the position illustrated in Fig. 2. This movement of this valve, establishes communication between the ports 47'and 48, the water entering from the chamber 42 through the ports 47 and between the heads 29 and 30. The water then passes from the chamber 16 out of the ports 48 to the chamber 40, thence through the port 45 to the cylinder 5 where it drives the piston toward the right. During the movement of the piston toward the right in Fig. 2, the Water contained in the cylinder 5 upon the right hand side of said piston, is driven out through the port 11, by-pass 12, port 13, port 44, chamber 38, ports 46 to the valve chamber 16, and from said valve chamber through the exhaust ports 37 to the exhaust chamber 34 and thence through the exhaust pipe 35 to the waste.

and this is accomplished in the following manner. After the valve has been shifted to the position illustrated in Fig, l., when water enters at the left of the chamber 16 to shift said valve to the position illustrated in Fig. 2, the water contained in the chamber 16 at the right hand end of the valve, is forced through the port 52 to the chamber 4l passing thence through the port 51 to the interior of the chamber 17 and thence through the exhaust port 54 to the exhaust chamber. With the valve in the position illustrated in Fig. 2, 4when water enters at the right hand end of said valve to shift it to the left, the water contained at the left hand end of said valve is forced through the port 53 to the chamber 39, thence through the port 49 to the chamber 17 passing from saidv chamber to the other port 54 through the exhaust chamber and thence to the waste.

From the foregoing description, it will be seen that means are herein provided for supplying water to one side of the piston until said piston reaches the limit of its stroke and for then supplying water to the opposite side of said piston to return said piston. Means are also provided for exhausting-the water from each side of the piston. Means are provided for shifting the valves which control the flow of this water by water pressure and means are also provided for the exhaust of the water which has been used in shifting the valves.

By referring to Fig. 4 oi the drawing, it will be seen that the exhaust ports 52 and 53 are so located that the valve leathers of the valves 28 and 31 will cut off the iiow of Huid through said ports before the valve reaches its end of travel. Consequently a small amount of water will be caught between the ends of the valve and the ends of the valve vchamber to cushion the valve, said valve being thereby prevented from bumping against the ends of the valve chamber.

From the foregoing description, it will be seen that simple and eHicient means are herein provided for accomplishing the objects of the invention, but while the elements shown and described are well adapted to serve the purposes for which they` are intended, it is to be understood that the invention is not limited to the precise construction set forth, but includes within its purview such changes as may be made within the scope of the appended claims.

What I claim, is:

1. A water motor comprising two centrally disposed valve chambers 16 and 17, an exhaust chamber located upon one side of the centrally disposed valve chambers, an exhaust pipe leading from said exhaust chamber, a central chamber 42 located upon the opposite side of the valve chambers, chambers 38, 39, 40 and 41 located upon the same side of the valve chambers as the chamber 42, ports establishing communication between all of said chambers and the valve chambers, ports establishing communication between both of the valve chambers and the exhaust chamber, a main cylinder', a port establishing communication between the chamber 40 and one end of the cylinder, a port 44 establishingl communication between the chamber 3S and the opposite end of the cylinder, a primary `valve located in one of said valve chambers, a secondary valve located in the other of said valve chambers, means for causing the piston to move the primary valve at each end of its stroke, said primary valve controlling the [low of fluid to the secondary valve, and said secondary Valve controlling the ilow of fluid to the cylinder.

2. A wateiumotor, comprising two centrally disposed valve chambers 1G and 17, an exhaust chamber located upon one side of the centrally disposed valve central chamber 42 located upon the opposite side of the valve chambers, chambers 3S, 3i), 40 and 4l located upon the same side of the valve chambers as the chamber 42, there being ports establishing communication between all of said chambers and the valve chambers and there being ports establishingl communication between`botl1 of the valve chambers and the exhaust chamber, a main cylinder', there being a port establishing communication between the chamber 40 and one end of the cylinder, a chamber 1S located at one end of the valve chambers, there being a port 44 which establishes communication between the chamber 13 and chamber 3S and there beiney a by-pass leadingfrom chamber 13 to the opposite end of the c vlinder, a primary valve located in one of said valve chambers. a secondary valve located in the other of said valve chambers. means for causing the piston to move the primary valve at each end of its stroke, said primary valve controlling the tlow of iuid to the secondary valve, and said secondary valve controlling the flow of fluid to the cylinder.

3. A water motor, comprising two centrally disposed valve chambers 1G and 1T, an exhaust chamber located upon one side of the centrally dispose'd valve chambers, a central chamber 42 located upon the opposite side of the valve chambers, chambers 3S, 39, 40 and 41 located upon the same side of the valve chambers as the chamber 42, there being ports establishing communication. between all ol' said chambers and the valve chambers and there being ports establishing communication between both of the valve chambers and the exhaust chamber, a main cylinder, there being a port establishing communication between the chamber 40 and one end of the cylinder, a chamber 13 chambers, a l located at one end of the valve chambers, there beinf,r a

port 44 which establishes communication between the chamber 13 and chamber 38 and there being a bypass establishingcommunication between chamber 13 and the opposite end ot' the cylinder, a primary valve located in one o1 said valve chambers, a secondary valve located in the other of said valve chambers, a rod which projects through the cylinder head into the cylinder and is rigidly connected to the primary valve, a hollow piston rod in which the end of said rod is disposed to travel, and means for causing the piston to shift said rod at each end of its stroke.

4. A valve casingT for water motors, comprising two centrally disposed valve chambers 16 and 17, an exhaust chamber located upon one side of the centrally disposed valve chambers, an exhaust pipe leading from said exhaust chamber, a central chamber 42 located upon the opposite side. of the valve chambers, chambers 38, 39, 40 and 4l located upon the same side of the valve chambers as the chamber 42, ports establishing communication between all of said chambers and the valve chamber, ports establishing communication between both ot the valve chambers and the exhaust chamber, a port establishing communication between the chamber 40 and one end of the cylinder of a water motor, a port 44 establishing communcation between the chamber 38 and the opposite end of the cylinder, and valves mounted in said valve chamber.

In testimony whereof I affix my signature in presence of two witnesses L. Cant. STOUGHTON.

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