US1197754A

US1197754A - Water-power motor.

Info

Publication number: US1197754A
Application number: US5031915A
Authority: US
Inventors: John N Moehn
Original assignee: MILWAUKEE WOVEN WIRE WORKS
Current assignee: MILWAUKEE WOVEN WIRE WORKS
Priority date: 1915-09-13
Filing date: 1915-09-13
Publication date: 1916-09-12
Anticipated expiration: 1933-09-12

Description

J. N. MOEHN.

WATER POWER MOTOR.

APPLICATION FILED SEP-T.- 1s. I9l5- 1 1 97,754. I Patehted Sept. 12, 1916.

7m: "cums PETERS cu, Puomumc. wAsmmnoN o. c.

UNITED STATES PATENT OFFICE.

JOHN N. MOEHN, OF MILWAUKEE, WISCONSIN, ASSIGNOR OF ONE-HALF TO MILWAUKEE WOVEN WIRE WORKS, OE MILWAUKEE, WISCONSIN, A CORPORATION OF WISOON SIN.

WATER-POWER MOTOR.

Specification of Letters Patent.

Patented Sept. 12, 1916.

To all whom it may concern:

Be it known that I, JOHN N. MOEHN, a citizen of the United States, residing at the city of Milwaukee, county of Milwaukee, and State of lVisconsin, have invented new and useful Improvements in Water-Power Motors, of which the following is a specification.

My invention relates to improvements in that class of motors which are adapted to be driven by water power and used for operating a clothes washer, and such improvements pertain, more especially to the construction of the valve mechanism by which the course of power water is controlled and alternately led to opposite sides of the power piston.

My invention is explained byreference to the accompanying drawing, in which- Figure 1 represents a plan view. Fig. 2 is a vertical section drawn on line w, as of Fig. 1, and Fig. 3 is a detail of the power controlling mechanism, also shown in vertical section. Fig. 4 is a plan view of the ported valve block and valve detached.

Like parts are referred to by the same reference numerals throughout the several views.

1 represents the walls of the motor which are preferably cast integral, substantially as shown.

2 is the inlet duct.

3 is a piston, and 4 is the piston inclosing chamber.

5 is a valve supporting block provided with cavities 5' and 5", in its upper and lower portion respectively. The cavity 5 is in constant communication with the inlet duct 2. The cavity 5" is in constant communication with the outlet duct 21. A slide valve 8 is mounted in the block 5 and has

tubular end portions

7, 7 respectively, each of which is provided with a

slot

6, 6 respectively in its upper wall, adapted for registry with end portions of the cavity 5, but so spaced that when port 6 is in registry with the cavity 5', the other port 6' will be out of registry therewith.

Assuming port 6 to be in registry with the cavity 5', as shown in Fig. 4, water from the inlet duct 2 will be permitted to pass from the cavity 5 through the port 6 and through the tubular open end 7 of the valve member 8 into the piston inclosing chamber 4 on one side of the piston. But

if the valve is shifted so that the opposite port 6 is brought in registry with cavity 5, the port 6 will be carried out of registry w1th said cavity, whereupon water will pass from the inlet duct 2 through the cavity 5 and through port 6 and the open end 7 of the valve member 8 into the piston chamber 4 on the opposite side of the piston. If the water is under pressure, it is therefore obvious that the'piston will be caused to oscillate first in one direction and then the other, as often as the valve is shifted, provided of course that the water previously admitted is permitted to escape. This escape of water from the chamber 4 is permitted by providing

exhaust ports

30 and 30 in valve 8, lead ing respectively to the inner ends of the

tubular passages

7, 7 whereby when port 6 is in registry with cavity 5, port 30 will be in registry with cavity 5", which cavity is in permanent communication with the exhaust duct 21. On the contrary, when the valve is shifted to the left in Figs. 8 and 4 to bring port 6 into registry with the cavity '5, then port 30 will be closed by the central portion of the valve supporting block 5 and port 30 will be carried from said central portion into registry with the left hand ild. portion of cavity 5", port 6 being simultaneously carried away from the valve block into registry with the chamber 4. The water may then pass from one side of the piston 3 through the tubular passage 7 and port 30 into cavity 5, and thence to the exhaust duct 21 simultaneously with the admission of Water 'to chamber 4 on the other side of piston 3, through port 6 and tubular passage 7.

The solid central portion of the slide valve 8 is provided with an upwardly projecting stem 10 which passes through a slot 19 in the block 5 and a corresponding slot in the partition wall 26, the stern projecting into a cavity 24 formed between this wall 26 and the cap 23 of the motor casing, and in which cavity the stem 10 is connected with a traveler 20 to each side wall of which, coiled

springs

14 and 15 are secured. When the piston 3 is moving in one direction under pressure of the water exerted against one side face thereof, its motion will be transmitted through shaft 9 to the actuating arm 12 connected with that portion of the shaft which projects into cavity 24 and with the continued movement of piston 3, arm 12 will eventually be brought into contact with the coiled spring 14, compressing said spring until the pressure becomes sullicient to overcome the friction of traveler 20 and valve 8, whereupon the valve, as soon as it commences to move, will be shifted with a quick positive stroke by reaction of spring 14:. The valve will thus be shifted to a position where the water will be admitted, as above explained, to the op- 1 posite side of the piston 3, whereupon piston 3 will move in the opposite direction until the actuating arm 13 carried by the shaft 9 in cavity 24:, is brought into contact with coiled spring 15, compressing the latter until the friction of the valve and associated parts is again overcome, whereupon the valve will be again shifted and the flow of water reversed.

Owing to the fact that the actuating

arms

12 and 13 are located above the partition 26 and owing to the fact that the traveler 20 is also located above the partition, together with the

springs

14 and 15, it is obvious that access may be had to these parts from the exterior without permitting an escape of water. That is to say, it is not necessary to shut off the water in order to obtain access to the valve operating mechanism, it being merely necessary to remove the cap 23 by removing the screws 25 and an annular clamping plate 24", which overlaps the margin of cap 23. The cap 23 will preferably be made of glass or translucent material, whereby the operation of the valve actuating mechanism may be observed.

Actuating

arms

12 and 13 are rigidly connected with the shaft 9 by a hub 11. The piston is connected with the shaft by a similar hub which bears upon the valve block 5 in water tight relation thereto. The motor is preferably provided with a plurality of legs 22, whereby the casing is supported above the floor or above the machine driven by shaft 9. Said shaft 9 extends downwardly through the bottom plate 23, whereby it may be connected with any driven machine. An ordinary stuffing box 2% is employed to prevent leakage along the shaft. A similar stufling box is not required to prevent leakage into cavity 24, for the reason that even if this cavity should fill with water, cap 23 would prevent its escape.

Briefly reviewing the operation of the motor and assuming the valve 8 to be in a position to deliver water from the inlet 2 in a direction. to drive piston 3 around to a point where arm 12 will contact with spring 14, then the continued movement of the piston will compress said spring 14 until the valve begins to move, whereupon the spring will, by re-action, throw the valve to reversed position, thereby allowing the water previously admitted to pass to the outlet 21 c5 and directing the incoming water to the opposite side of piston 3 which will there upon move in the opposite direction until arm 13 engages and compresses spring 15 to a point where it will actuate and reverse the valve. Piston 3 will therefore oscillate continuously, back and forth in the chamber l, imparting an oscillatory movement to shaft 9 to which it is secured.

Having thus described my invention what I claim as new, and desire to secure by Letters Patent, is 1- 1. In a device of the described class, the combination with a piston inclosing chamber provided with inlet and outlet ducts, and having a slot in its upper wall, an oscillating piston in said chamber, a piston supporting shaft projecting through said upper wall, a valve supporting block in said chamber located underneath said slot and provided with a slide valve controlling the admission and exhaust of liquid from portions of the piston chamber on opposite sides of the piston, and also adapted to prevent the escape of liquid through said slot, a valve actuating member extending through said slot to the space above said upper wall, .and connections for transmitting motion from the piston supporting shaft to said valve actuating member during the final movement of the piston in either direction.

2. In a device of the described class, the combination with a piston inclosing chamber provided with inlet and outlet ducts, and having a slot in its upper wall, an oscillating piston in said chamber, a piston supporting shaft projecting through said upper wall, a valve supporting block in said chamber located underneath said slot and provided with a slide valve controlling the admission and exhaust of liquid from portions of the piston chamber on opposite sides of the piston, and also adapted to prevent the escape of liquid through said slot, a valve actuating member extending through said slot to the space above said upper wall, and connections for transmitting motion from the piston supporting shaft to said valve actuating member during the final movement of the piston in either direction, said connections comprising a pair of rigid arms connected with said shaft and projecting in opposite directions, and a pair of springs connected with said valve actuating member and projecting in the path of said arms, each of the springs being adapted to receive pressure from one of said arms and transmit the same to the valve actuating member and valve when such pressure becomes sufficient to overcome the friction of the parts.

3. In a device of the described class, the combination of a piston inclosing chamber provided with inlet and outlet ports, a piston therein adapted to oscillate upon a central axis, a centrally disposed piston supporting shaft, a valve supporting member located at one side of said piston supporting shaft, a valve mounted to slide longitudinally in said member and provided at opposite ends with outlet ports, each end of said valve being adapted in one position to afford communication between the inlet and the piston chamber on one side of the piston and to simultaneously open communication between the opposite side of said piston chamber with the exterior, said valve being adapted for longitudinal shifting movements to connect the inlet and outlet ports with the opposite sides of said piston, and means connected with the piston shaft eX terior to said chamber for shifting said valve.

In a device of the described class, the combination of a piston inclosing chamber provided with inlet and outlet ports, a piston therein adapted to oscillate upon a central axis, a centrally disposed piston supporting shaft, a valve supporting member located at one side of said piston supporting shaft, a valve mounted to slide longitudinally in said member and ported at opposite ends thereof,

each end of said valve being adapted in one position of adjustment to afford communication between the inlet and the piston chamber on one side of the piston with simultaneous communication through the ports at the other end of said valve from the other side of the piston to the chamber outlet port, said valve being adapted for longitudinal shifting movements to connect the inlet and outlet ports with the opposite sides of said piston, and means connected with the piston for shifting said valve, said piston chamberhavingasuperposed cavity into which an operating stem, connected with the valve, projects, valve actuating wings connected with the piston shaft, and adapted to actuate said valve stem and valve alternately in opposite directions, and springs interposed between the valve stem and said valve actuating wings.

In testimony whereof I affix my signature in the presence of two witnesses.

JOHN N. MOEHN. Witnesses:

ALIoE J. MOKERIHAN, EDNA A. SMITH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.?