US477398A - Valve - Google Patents

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US477398A
US477398A US477398DA US477398A US 477398 A US477398 A US 477398A US 477398D A US477398D A US 477398DA US 477398 A US477398 A US 477398A
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valve
stem
chamber
passages
water
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
    • B62D5/08—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of steering valve used
    • B62D5/083—Rotary valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/86638—Rotary valve
    • Y10T137/86646—Plug type
    • Y10T137/86654—For plural lines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86839—Four port reversing valves

Definitions

  • FIG. 1 is a vertical section on line 1 l of Fig. 2.
  • Fig. 2 is a top or plan view of the valve chamber and seat.
  • Fig. 3 is a vertical section on line 3 3 of Fig. 2.
  • Fig. 4 is a top or plan view of the valve-stem, and
  • Fig. 5 is a bottom View of the valve-stem.
  • My invention relates to valves, and more particularly to that class called balanced valves, which are adapted to be used in hydraulic machinery where the valves are subject to great pressure, such as in hydraulic cranes.
  • the object of my invention is to simplify and improve the construction of valves of this class, and I accomplish this object as hereinafter specified, and as illustrated in the drawings.
  • A indicates the valve-casing, in which is a cylindrical valve-chamber B.
  • a a indicate pipes, which are preferably cast integral with the valve-casing, and which are adapted to conduct water into the valvechambor B through ports I) b, which open into the valve-chamber through the bottom of said chamber.
  • the pipes at a are preferably screw-threaded, as best shown in Fig. 1, so that the proper connections may easily be made.
  • the ports I) b are located about forty-five degrees from each other on the arc of a circle and are preferably shaped as shown in the drawings.
  • the pipes a a, which lead to the ports I) b, are preferably in the same straight line on opposite sides of the valve-casing; but they may be located at any other points, if desired.
  • the port 0 indicates a pipe, which is also preferably cast integral with the valve-casing, and which leads to a port a, which opens into the valvechamber at a point a short distance above the bottom of said chamber, as best shown in Fig. 3.
  • the port 0 may be located at any suitable point in the Valve-chamber, but is preferably at a point equidistant from the ports I) b and at the opposite side of the valve-chamber.
  • D indicates the valve-seat, which is flat and has a central opening or passage d, which leads to a waste-pipe. If desired, by making suitable connections with the passage (1 the water as it passes from the valve-chamber, as will be hereinafter described, may be conducted back to a reservoir and used over again.
  • E indicates a cap, which is adapted to be screwed upon the valve-casing to tightly seal :the valve-chamber, the valve-chamber being internally screw-threaded at its upper portion to receive the threads of the cap, as best shown in Figs. 1 and 3.
  • the capE is provided with a gland 6, adapted to be screwed upon it at its upper end.
  • the gland e is adapted to tightly fit the valvestem F, the upper end of which passes 111 ward through the cap E, as shown in the drawings. Any suitable packing may be used to prevent leakage through the cap E and gland e.
  • the valve-stem F is somewhat bell-shaped, its lower end being circular and adapted to fit tightly into' the valve-chamber B, as best shown in Fig. 1, while its upper portion is elongated into a stem, which is adapted to pass through the cap, as hereinbefore described.
  • a peripheral groove f Near the upper part of that portion of the valve-stem which fits into the chamber 13 is provided a peripheral groove f, which is shaped as shown in Fig. 1, being angular at the top and inclining gradually outward to the sides of the valve-chamber.
  • the groove f is so located on the valve-stem that the lip f will be upon a level with or slightly higher than the top of the port- 0 when the valve-stem is resting upon the valveseat, as best shown in Fig. 3. The groovef will then be opposite the port 0.
  • G indicates a central chamber, which. is formed in the lower part of the valve-stem, as best shown in Figs. 1 and 3, which chamber is adapted to be over the passage cl when the stem is resting upon the valve-seat.
  • passages which are formed in the valve-stem on opposite sides and extend from the chamber G to the bottom of the valve-stem, as best shown in Fig. 1, and are adapted to register with the ports 6 b.
  • the openings of the passages g are preferably shaped to correspond with the shape of the ports I) b.
  • the openings of the passages g at the bottom of the valve-stem are also preferably shaped to correspond with the shape of the ports I) b, with which they are adapted to register.
  • the top of the valve-stem is preferably squared, so that the stem can be more easily turned; but any suitable device may be provided for operating it.
  • the bottom of the valve-stem is flat, so as to be adapted to rest steadily upon the valve-seat.
  • valve The operation of my improved valve is as follows: The valve is connected at the pipe 0 to a pump or other source of water-supply, and the pipes act are connected with the opposite ends of a cylinder, in which is a piston. Water under high pressure is then forced through the pipe 0 .into the valvechamber B on a level with the groove f, as best shown in Fig. 3. The presence of the lip f will cause the water to bear upwardly upon 7' the valve stem and so equalize the pressure within the valve that the valve-stem is approximately balanced and may be easily operated. When the valvestem is in the position shown in Fig.
  • the water after entering the chamber through the port a will pass around the valve -stem through one of the passages g and out through the port 12 and passage 0., since when the valve-stem is in the position indicated one of said passages 9' will register with the port I).
  • the water will be prevented from flowing through the other passage g because of the fact that said passage will be over the solid portion of the valveseat.
  • the water After passing through the passage a the water will pass to the cylinder above referred to, where its pressure may be utilized to drive the piston in the usual manner. In order to return the piston to the opposite end of the cylinder, the valve is turned so that the pressure will be transferred to the other end of the cylinder to force the piston back.
  • valve-stem may be provided with two passages g and one g or with two passages g and one g.
  • Either of the above forms may be used with a cylinder in which the pressure of the water is transferred to opposite ends of the cylinder to drive a piston, as hereinbefore described.
  • valve will therefore last much longer than valves heretofore used for a similar class of work.
  • the connections are also rendered much tighter, so that leakage is avoided.
  • valve-casing A having the cylindrical valve-chamber B, the flat valve-face D, the central outlet-passage d, the lateral port 0, opening into the valve-chamber above the Hat valve-face thereof, and the pair of inlet and outlet ports I) Z), both opening upwardly at different points through the flat valve-face which constitutes the bottom wall of the cylindrical valve-chamber,in combination with the valve-stem F, provided with the vertical central chamber G, the vertical passages g g,
  • valve-casing A having the cylindrical valve-chamber B, the flat valve-face D, the central outlet-passage d, the port 0, opening into the valve-chamber above the flat valve-face thereof, and the inlet and outlet ports I) I), both opening upwardly at different points through the flat valve-face of the valvechamber, in combination with the bell-shaped valve-stem F, having a flat lower end and "provided with a central chamber G, the passages g g, arranged round the latter and closed by the flat valve-face of the valvechamber, the peripheral groove f, opening at opposite sides into the passages g, and the lip f, located above the peripheral groove for equalizing the pressure and balancing the valve-stem, substantially as described.

Description

2 Sheets-Sheet 1 .1
(No Model.)
- G.ANDERSON.
VALVE.
No. 477,398. Patented June 21, 1892.
2 SheetsSheet 2. G. ANDERSON.
VALVE.
(No Model.)
UNITED STATES- PATENT OF ICE...
GILBERT ANDERSON, OF CHICAGO, ILLINOIS.
VALVE.
SPECIFICATION forming part of Letters Patent No. 477,398, dated June 21, 1892. Application filed June 23, 1891- Serial No. 397,257- (No model.)
To to whom zit may concern:
Be it known that I, GILBERT ANDERSON, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illi nois, have invented certain new and useful Improvements in Valves, of which the following is a specification, reference being had to the accompanying drawings, in Which- Figure 1 is a vertical section on line 1 l of Fig. 2. Fig. 2 is a top or plan view of the valve chamber and seat. Fig. 3 is a vertical section on line 3 3 of Fig. 2. Fig. 4 is a top or plan view of the valve-stem, and Fig. 5 is a bottom View of the valve-stem.
My invention relates to valves, and more particularly to that class called balanced valves, which are adapted to be used in hydraulic machinery where the valves are subject to great pressure, such as in hydraulic cranes.
The object of my invention is to simplify and improve the construction of valves of this class, and I accomplish this object as hereinafter specified, and as illustrated in the drawings.
That which I regard as new will be pointed out in the claims.
In the drawings, A indicates the valve-casing, in which is a cylindrical valve-chamber B. a a indicate pipes, which are preferably cast integral with the valve-casing, and which are adapted to conduct water into the valvechambor B through ports I) b, which open into the valve-chamber through the bottom of said chamber. The pipes at a are preferably screw-threaded, as best shown in Fig. 1, so that the proper connections may easily be made. As best shown in Fig. 2, the ports I) b are located about forty-five degrees from each other on the arc of a circle and are preferably shaped as shown in the drawings. The pipes a a, which lead to the ports I) b, are preferably in the same straight line on opposite sides of the valve-casing; but they may be located at any other points, if desired.
0 indicates a pipe, which is also preferably cast integral with the valve-casing, and which leads to a port a, which opens into the valvechamber at a point a short distance above the bottom of said chamber, as best shown in Fig. 3. The port 0 may be located at any suitable point in the Valve-chamber, but is preferably at a point equidistant from the ports I) b and at the opposite side of the valve-chamber.
D indicates the valve-seat, which is flat and has a central opening or passage d, which leads to a waste-pipe. If desired, by making suitable connections with the passage (1 the water as it passes from the valve-chamber, as will be hereinafter described, may be conducted back to a reservoir and used over again.
E indicates a cap, which is adapted to be screwed upon the valve-casing to tightly seal :the valve-chamber, the valve-chamber being internally screw-threaded at its upper portion to receive the threads of the cap, as best shown in Figs. 1 and 3.
The capE is provided with a gland 6, adapted to be screwed upon it at its upper end. The gland e is adapted to tightly fit the valvestem F, the upper end of which passes 111 ward through the cap E, as shown in the drawings. Any suitable packing may be used to prevent leakage through the cap E and gland e.
The valve-stem F is somewhat bell-shaped, its lower end being circular and adapted to fit tightly into' the valve-chamber B, as best shown in Fig. 1, while its upper portion is elongated into a stem, which is adapted to pass through the cap, as hereinbefore described. Near the upper part of that portion of the valve-stem which fits into the chamber 13 is provided a peripheral groove f, which is shaped as shown in Fig. 1, being angular at the top and inclining gradually outward to the sides of the valve-chamber. By making the groove f in this manner a projecting lip f is formed, as best shown in Figs. 1 and 3. The groove f is so located on the valve-stem that the lip f will be upon a level with or slightly higher than the top of the port- 0 when the valve-stem is resting upon the valveseat, as best shown in Fig. 3. The groovef will then be opposite the port 0.
G indicates a central chamber, which. is formed in the lower part of the valve-stem, as best shown in Figs. 1 and 3, which chamber is adapted to be over the passage cl when the stem is resting upon the valve-seat.
9 indicates passages which are formed in the valve-stem on opposite sides and extend from the chamber G to the bottom of the valve-stem, as best shown in Fig. 1, and are adapted to register with the ports 6 b. The openings of the passages g are preferably shaped to correspond with the shape of the ports I) b.
g indicate openings or passages which extend from opposite sides of the bottom of the valve-stem and open into the valve-chamber at the groove f, as best shown in Fig. 3. The openings of the passages g at the bottom of the valve-stem are also preferably shaped to correspond with the shape of the ports I) b, with which they are adapted to register.
The top of the valve-stem is preferably squared, so that the stem can be more easily turned; but any suitable device may be provided for operating it. The bottom of the valve-stem is flat, so as to be adapted to rest steadily upon the valve-seat.
The operation of my improved valve is as follows: The valve is connected at the pipe 0 to a pump or other source of water-supply, and the pipes act are connected with the opposite ends of a cylinder, in which is a piston. Water under high pressure is then forced through the pipe 0 .into the valvechamber B on a level with the groove f, as best shown in Fig. 3. The presence of the lip f will cause the water to bear upwardly upon 7' the valve stem and so equalize the pressure within the valve that the valve-stem is approximately balanced and may be easily operated. When the valvestem is in the position shown in Fig. 1, the water after entering the chamber through the port a will pass around the valve -stem through one of the passages g and out through the port 12 and passage 0., since when the valve-stem is in the position indicated one of said passages 9' will register with the port I). The water will be prevented from flowing through the other passage g because of the fact that said passage will be over the solid portion of the valveseat. After passing through the passage a the water will pass to the cylinder above referred to, where its pressure may be utilized to drive the piston in the usual manner. In order to return the piston to the opposite end of the cylinder, the valve is turned so that the pressure will be transferred to the other end of the cylinder to force the piston back. In
' using my improved valve when the pressure of the water is through the pipe at to the cylinder and the pipe a is connected with the opposite end of the same cylinder as the water from the pipe at forces the piston to the opposite end of the cylinder what may be called the spent water will be forced from the cylinder through the pipe a and passage 9 into the central chamber 61 in the valvestem, whence it may flow back to the reservoir to be pumped through the valve again, as hereinbefore suggested. To reverse the valve in order to throw the water into the other end of the cylinder to which the valve is attached, the valve-stem is so turned that one of the passages g will be over'or register with the port b'. The pressure of the water will then be through the pipe at to the cylinder, and the return flow of the water will be through the pipe or.
I have described one way in which my improved valve may be used; but I do not wish to limit myself to the use described, as it may be used with various kinds of machinery.
In the drawings I have shown two passages g and two passages g but, if desired, the valve-stem may be provided with two passages g and one g or with two passages g and one g. Either of the above forms may be used with a cylinder in which the pressure of the water is transferred to opposite ends of the cylinder to drive a piston, as hereinbefore described.
'By making the bottom of the valve-stem flat and resting it upon a flat valve-seat wear is in a great measure compensated for, and
the valve will therefore last much longer than valves heretofore used for a similar class of work. The connections are also rendered much tighter, so that leakage is avoided.
That which I regard as new, and desire to secure by Letters Patent, is
1. The valve-casing A, having the cylindrical valve-chamber B, the flat valve-face D, the central outlet-passage d, the lateral port 0, opening into the valve-chamber above the Hat valve-face thereof, and the pair of inlet and outlet ports I) Z), both opening upwardly at different points through the flat valve-face which constitutes the bottom wall of the cylindrical valve-chamber,in combination with the valve-stem F, provided with the vertical central chamber G, the vertical passages g g,
arranged round the latter, separated from each other, and closed at their lower ends by the fiat valve-face at the bottom of the valvechamber, and the peripheral groove f, opening at opposite sides of the valve-stem into the passages g, substantially as described.
2. The valve-casing A, having the cylindrical valve-chamber B, the flat valve-face D, the central outlet-passage d, the port 0, opening into the valve-chamber above the flat valve-face thereof, and the inlet and outlet ports I) I), both opening upwardly at different points through the flat valve-face of the valvechamber, in combination with the bell-shaped valve-stem F, having a flat lower end and "provided with a central chamber G, the passages g g, arranged round the latter and closed by the flat valve-face of the valvechamber, the peripheral groove f, opening at opposite sides into the passages g, and the lip f, located above the peripheral groove for equalizing the pressure and balancing the valve-stem, substantially as described.
GILBERT ANDERSON. Witnesses.
JOHN L. J ACKSON, RALPH VANDYKE.
ITO
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855000A (en) * 1955-02-16 1958-10-07 Robertshaw Fulton Controls Co Reverse flow valve
US3580283A (en) * 1969-01-24 1971-05-25 Wolverine Ind Inc Single lever valve for automatic washers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855000A (en) * 1955-02-16 1958-10-07 Robertshaw Fulton Controls Co Reverse flow valve
US3580283A (en) * 1969-01-24 1971-05-25 Wolverine Ind Inc Single lever valve for automatic washers

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