US1140532A - Motor. - Google Patents

Description

L. S. RZEH.

MOTOR.

APPLICATION FILED MAR. z, I9I4.

1,140,532.. Patented May 25, 1915 2 SHEETS-SHEET l.

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1HE NORRIS PETERS C0.. PHOTO-LITHO.. WASHINGTUN, D4 C.

L. S. RIZER.

MoToR.

' APPLICATION FILED MAR. 2, 1914. 1,149,532. Patented May 25, 1915.

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LOUIS S.`RIZER, OF SERINGFIELD, OHIO.

Moron.

Speocation of Letters Patent.

Patented May 25, 1915.

Application filed March 2, 1914. Serial No. 821,973.

T0 all whom it may concern:

Be it known that I, LOUIS S. RIZER, a citizen of the United States, residing at Springfield, in the county of Clark and State of Ohio, have invented certain new and useful Improvements in Motors, of vwhich the following is a specification, reference being had therein to the accompanying drawing.

rIlhis invention relates to motors and more particularly to water motors of.VA that type designed for the operation of washing machines, water lifts and thelike.

The object of the invention is to provide a motor of this kind in which the valves may be shifted without the use of springs; in which vthe'action ofthe motor will be positive; and in which the mechanism will be of such a character that it will require no delicate adjustments and will not be likely to become disarranged and to be rendered inoperative in service. y

To this end it is a further object of the invention to provide means for actuating the valve, which controls the flow of fluid to and from the motor, by fluid pressure and to control this pressure by the movement of the piston of the motor so that the flow of fluid will be reversed at the end of each stroke of the motor piston.

In the accompanying drawings,Figure 1 is a side elevation of apmotor embodying my invention; Fig. 2 is a top, plan view of the same; Fig. 3 is a transverse section, taken on the line 3 3 of Fig. 1; Fig. 4 is a longitudinal section taken on the line 4 4 of Fig. 2; Fig. 5 is a section taken on the line 5 5 of Fig. 2 and looking in the direction of the arrows; Fig. 6 is a section ltaken on the line 6 6 of Fig. 2; and Fig. 7 is a Section taken on the line 7 7 of Fig. 2 and looking in the direction of the arrows.

In these drawings I have illustrated one embodiment of my invention and have shown the same as applied to a reciprocatory motor which is arranged in a vertical Y position but it will be understood that this type of motor is chosen for the purposes of illustration only and that neitherl thetype of motor nor the manner of its arrangement is essential to the invention but may be varied at will.

In the present embodiment of theinvention I have shown the motor as comprising a cylinder consisting of the usual cylindrical body portion 1 and cylinder heads 2 and 3 which may be connected with the cylindrical body portion in any suitable manner. Each cylinder head has an opening provided with a stufling box 4 through which passes a piston rod 5. One end of the piston rod is adapted to be connected with the device which is to be operated and the other end of the piston rod controls the valve-shifting devices. It will be obvious, however, that the rod could be projected through one end of the cylinder only and that the valve shifting-device could be controlled by the same portion of the rod which is connected with the work.

The motor, as shown, is mounted upon a bracket 6 which, in turn, may be mounted upon a suitable support, such as the hinged top for a washing machine. Arranged adjacent to` and preferably alongside of the cylinder 1 is a valve casing 7 having formed therein two valve chambers 8 and 9. The valve chamber 9 communicates with the cylinder 1 on opposite sides of a piston 10 mounted within the cylinder 1 and connected with the rod 5. The communication between ythe valve chamber 9 and the cylinder is through a two part chamber or conduit 11 which, in the present form of the device, is arranged between the valve chamber 9 and the cylinder. This two part 'chamber is provided at its opposite en ds with ports 12 and 18 connecting the same with the interior of the cylinder 1 at the opposite ends thereof. The two parts of the chamber or conduit 11 are respectively provided at their adjacent ends with inlet and exhaust passages 14 and 15 and 16 and 17 connecting said two parts of said chamber with the valve chamber 9. Mounted in the valve chamber 9 is a piston valve 18 having three annular ports, one near the center and one near each end thereof. The central port 19 is an inlet port and is adapted to be moved into registration with either of the inlet ports 14 and 16 leading to the chamber 11 and is always in communication with a passageway 20 leading to the valve chamber 8 which, in turn, is connected with a source of supply by means of an inlet passageway 21. The other annular ports, 22 and 23, are exhaust ports and are so arranged that when the inlet port 19 is in register with the port 16 of the chamber 11 the exhaust port 22 will register with the port 15 of the chamber 11, and when the port 19 is registered with the port 14 the exhaust port 23 will register with the port 17 of the chamber 11. The valve chamber 9 is also connected with an exhaust chamber 24 by means of ports 25 and 26 arranged toV communicate with the exhaust ports 22 and 23 of the valve 18 when these ports are in register, respectively, with the'ports 15 and 17 of the chamber 11, thus permitting the fluid to exhaust from the cylinder 1 through one part of the chamber 11 and thev exhaust port of the valve to the exhaust chamber 24 which is connected with the exhaust pipe by means of a nipple 27. WhileV -valve chambers 8.and 9sare connected one to the other, on opposite sides of the passageway 20, by passages 28 and 29, these passageways communicating` vwith .the valve chamber 9 beyond thelimits of movement .of the piston valve 18. :The movement of p this valve is, in the'present instance, limited by means of-hollow'extensions 30 formed on the heads closing the ends of the valve chamber and spaced awayrfromv the Walls vof the valve chamber. TheseV hollow extensions are provided with ports 31 to'connect the interior thereof with the valve chamber proper and thus expose substantially the full end of the valve to the pressure ofthe waterthat enters through the ports 28 and 29. The valve :chamber 8 communicates with the l source lof fluid supply, which communication, in the present instance, iis by means of the inlet passage 21 which enables the chamber to be connected with a Isupply pipe. Mounted within the valve chamber is a suitable valve to control the flow of Huid through the valve chamber 9. This valve is here shown 'in the lform of a piston valve 33 i and isprovided with a wide central annular' port 34 by ymeans of.,which the supply4 pipe or inlet 21 is always connected with the passageway 20 so thatvthe water-always has free passage` from the supply pipe Athrough the valve chamber 8y and passage 20 to the valve chamber 9. The valve v33 hasy a longitudinal passageway 35 which extends through one end of the valve and communicates with the interior of the valve chamber at the other end of the valve by4 means of ports 36. The passageway 35 is connected with the source of fluid supply by means of a port 37 and, consequently, there is a constant fluid pressure at both ends'of the longitudinal lpassageway 35 and through whichever of the ports 28 or 29 isV open. lVith the valve 33 in the position shown in the drawings the passageway 35 is in communication with the port 28 at theupper end of the valve chamber 8 and the fluid has passed through the port 28 into the valve chamber 9 above the piston valve 18 and has moved this valve downward into the position shown, so that the fluid is entering the cylinder 1 beneaththe pistonlO. As the piston rises in its cylinder it will shift'the valve'member 33 to reverse the flow of water from the valve chamber 8 to the valve chamber 9. To this end the pisvton rod 5, which pro-jects above the cylinder 1, has a -slotted arm 38 which extends about a valve stem 39 connected with the valve member 33 and having stops 4() between which the arm 38 moves. These stops are so arranged y that when the piston 10 Vapproaches the limit of its movement in either direction it will engage one -or the other of thestops and shift theLvalve 33. The upward movement of the piston will causethe ed to bring the inlet-:port 19 into registration with the port 14 ofthe upper part of the .chamber 11, whichV communicates with the cylinder 1 above the piston. To permit this `movement of the piston valve 18 `it is necessary that the water above the valve should be exhausted land I-have, therefores provided the valve chamber-8 with two exhaust ports 41 and 42 communicating, re-

spectively, with the two parts vof-a chamber 43 arranged between thev valve chamber V8 and the cylinder. The' valve 33 has annular ports 44 and 45 so arranged that the -port 44 will connect the relief'port 41 with the port 28 when the latter porthas been cut off from the source of fluid suppl-y, and the port 45 lwill connect the A` ports 42 and 29 when the port 29 has been cut off from the source of iluidsupply. .The two parts of the:chamber 43 are connected by-.conduits 46 with the exhaust chamber 24.

The operationA of thefdevice has been fully explained in connection with the description of the several parts thereof and it will be apparent that theflow of the motorzfluid to the cylinder is controlled by the :piston valve 18 and that this `piston valve isshifted, to cause the motor fluid to act upon one side or the other of the piston, bymeans of the motor fluid itself which is caused to act upon one end or` the other of the piston result the water will enter the valvefchamber-9 beneath the piston valve 18. The val-ve'wilhbe shiftvalve 18 by the valve 33, this latter valve being controlled by the movement of the piston of the motor. The action is positive, the valve cannot become balanced and there are required no fine or delicate adjustments which would make the device impractical for service in the hands of unskilled persons.

IVhile I have shown and described one embodiment of the invention it will be understood that this has been chosen for the purposes of illustration only, and that I do not desire to be limited to the details of construction shown and described, for obvious modifications will occur to a person skilled in the art.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a motor, the combination with a cylinder anda piston mounted therein, of a casing having two parallel valve chambers arranged along side of said cylinder, one of said valve chambers communicating with said cylinder on opposite sides of said piston and with an exhaust chamber, a piston valve mounted in said valve chamber and having an inlet port, the second of said valve chambers communicating with asource of fluid supply and having a port in permanent communication with the inlet port of said piston valve and also having other ports communicating with said first mentioned valve chamber at the opposite ends of said piston valve, a piston valve mounted in said last mentioned valve chamber and having a port to permanently connect said source of iiuid supply with the inlet port for the first mentioned valve chamber, said piston valve having an axial conduit connected with said source of fluid supply, said last mentioned valve chamber having relief ports at the opposite ends thereof and said last mentioned piston valve being constructed to alternately connect the ports leading to the ends of the iirst mentioned valve chamber with said axial conduit and said relief ports, and a motor controlled Vdevice for actuating said last mentioned piston valve.

2. In a motor, the combination with a cylinder, and a piston mounted therein, of a casing secured to said cylinder and having two parallel valve chambers, two-part chambers interposed between the respective valvev chambers and said cylinder, the two parts of one of said two-part chambers communicating, respectively, with said motor cylinder on opposite sides of the piston, and each havingl an inlet port and an exhaust port connecting the same with the corresponding valve chamber, a piston valve mounted in said valve chamber and having an inlet port adapted to be moved into l registration with either of the inlet ports leading to said two-part chamber, and having exhaust ports to be moved into registration with the respective exhaust ports of said two-part chamber, the other of said valve chambers communicating with a source of fluid supply, having a passageway in permanent communication with the inlet port of said piston valve and having relief ports connected respectively to the two parts of the second two-part chamber, other ports connecting said last mentioned valve chamber with the first mentioned valve chamber at the opposite ends of said piston valve, a piston valve mounted in said last mentioned valve chamber to control said ports, and a device actuated by the motor piston for operating said last mentioned piston valve.

3. In a motor, the combination, with a cylinder, and a piston mounted therein, of a casing secured to said cylinder and having two parallel valve chambers, two part chambers interposed between the respective valve chambers and said cylinder, the two parts of one of said two part chambers communicating, respectively, with said motor cylinder on opposite sides of the piston and each having an inlet port and an exhaust port, connecting the same with the corresponding valve chamber, a piston valve mounted in said valve chamber and having an inlet port adapted to be moved into registration with either of the inlet ports leading to said two part chamber and having exhaust ports to be moved into registration with the respective exhaust ports of said two part chamber, the other of said valve chambers communicating with a source of iuid supply, having a passageway in permanent communication with the inlet port of said piston valve and having relief ports connected, respectively, to the two parts of the second two part chamber, other ports connecting said last-mentioned valve chamber with the first-mentioned valve chamber at the opposite ends of said piston valve, a valve mounted in said last-mentioned valve chamber and having a longitudinal passageway communicating with said source of fluid supply and having outlet ports near the opposite ends of said valve, said last-mentioned valve being arranged to alternately connect the ports leading to the opposite ends of the first-mentioned valve chamber with said longitudinal passageway and the respective relief ports, and a connection between said last-mentioned valve and the motor piston.

In testimony whereof, I aiiix my signature in presence of two witnesses.

LOUIS S. RIZER. Witnesses:

C. W. RIZER, GEORGE W. TEHAN.

Copies of this patent may be obtained for ive cents each, by addressing the Commissioner of Patents, Washington, D. C.

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