US1073186A - Triple-valve device. - Google Patents

Triple-valve device. Download PDF

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Publication number
US1073186A
US1073186A US1911603560A US1073186A US 1073186 A US1073186 A US 1073186A US 1911603560 A US1911603560 A US 1911603560A US 1073186 A US1073186 A US 1073186A
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Prior art keywords
valve
piston
port
operated
triple
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Expired - Lifetime
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Walter V Turner
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Westinghouse Air Brake Co
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Westinghouse Air Brake Co
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Priority to US1911603560 priority Critical patent/US1073186A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/36—Other control devices or valves characterised by definite functions
    • B60T15/42—Other control devices or valves characterised by definite functions with a quick braking action, i.e. with accelerating valves actuated by brake-pipe pressure variation
    • 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
    • Y10T137/86928—Sequentially progressive opening or closing of plural valves
    • Y10T137/86936—Pressure equalizing or auxiliary shunt flow

Definitions

  • This invention relates to automatic fluid pressure brakes, and, has for its object to provide improved means for securing a local venting offluid from the train pipe in 1 service applications ofQthe brakes to thereby accelerate the movement of the SllCOGSSlVG' triple valves-throughout the train.
  • Figure 1 is a central sectional view of a triple valve device embodying'my invention, showing the parts in normal full release position and Fig. 2a similar view, with the parts shown in service application position.
  • the triple valve device illustrated in the drawing is of the so called retarded release type for securing a more uniform release of the brakes, particularly on long trains, but I wish it understood that my present improvement may be applied to various other types of triple valves.
  • the triple valve device may comprise a casing 1 having a piston chamber 2 connected by passage 3 to the train pipe and containing triple valve piston 4t, and having a valve chamber 5 open to the auxiliary reservoir and contain ing main slide valve 6 and auxiliary slide valve 7 mounted on the'main slide valve and having a' movement relative thereto.
  • a yielding resistance. device 8. serves as a stop for the piston 4 to determine the normal full release position of the valves and is adapted to yieldingly resist movement of said valves to an inner retarded release position in which. the exhaust from the brake munication from train pipe passage 3 to Specification of Letters Patent.
  • valve 15 adapted to control conununication from chamber 13 to a passage 16 leading to the brake cylinder.
  • the valve 15 is provided with a projecting portion 1'7 adapted to be engaged by the stem 11 of piston 9, said valve being normally maintained seated by a spring 18.
  • an auxiliary puppet valve 19 is provided in the main slide valve 6 and this valve is operated by the movement of triple valve piston 4 in service applicationsto open communication from the auxiliary reservoir to a port 20 in the main slide valve, which port is adapted to register with a passage 21 leading to one side of the movable abutment 9.
  • the body of emergency valve 15 has a chamber containing a puppet valve 22 having a stem 23 adapted to project out through the portion 17, said valve being normally seated by a spring 24.
  • the abutment 9 is thereupon operated and the stem 11 engages the stem 23 and opens the valve 22 to thereby permit air to flow from the train pipe past check valve 14- to chamber 13 and thence through a restricted port 28 to passage 16 and the brake cylinder.
  • a passage 29 leading to passage 16 is uncovered by the outward movement of piston 9 so that in the position shown in Fig. 2, the air flowing from the auxiliary reservoir through passage 21 flows through the passage 29 to the brake cylinder.
  • the pressure on the outer face of said abutment is thus relieved and prevents any further outward movement of the abutment to open the emergency valve 15.
  • the triple valve piston moves inwardly and operates the auxiliary valves 7 and 19 to close the ports 25 and 20 respectively and the pressures then equaliz ing on opposite sides of the abutment 9, the same is shifted by the spring 30 to its normal position, permitting the valve 22 to close and prevent further venting of air from the train pipe.
  • the auxiliary valves 7 and 19 may be again opened to supply air to the brake cylinder and also supply air to operate the abutment 9 and valve 22 to vent air from the train pipe in accordance with the operation hereinbefore described.
  • the piston 4 moves out its full traverse and uncovers the usual large emergency port 31, Which supplies air to the abutment 9 in such volume as to cause same to move outwardly with full force and thereby lift the emergency valve 15 from its seat, to produce the usual emergency venting of air from the train pipe.
  • a triple valve device for fluid pressure brakes comprising a piston, a main slide valve operated thereby and having a graduating port adapted to communicate with a brake cylinder port in service application position, an auxiliary valve movabl with the piston for controlling said graduating port, and a second auxiliary valve operated by said piston and adapted in service application position to effect the opening 01 a local train pipe discharge port.
  • a triple valve device for fluid pressure brakes comprising a piston, a main slide valve operated thereby, a graduating slide valve mounted on said main slide valve and operated by the piston for controlling a brake cylinder service port, and an auxiliary puppet valve operated by said piston and adapted in service application position to effect the opening of a local train pipe discharge port.
  • a triple valve device for fluid pressure brakes comprising a piston, a main slide valve operated thereby, a graduating slide valve mounted on said main slide valve and operated by the piston for controlling a brake cylinder service port, and an auxiliary valve mounted in the main slide valve and operated by said piston for efi'ecting the opening of a local train pipe discharge port.
  • a triple valve device for fluid pressure means is a triple valve device for fluid pressure means.
  • brakes comprising a piston, a main slide valve operated thereby, a graduating slide valve mounted on said main slide valve and operated by the piston for "controlling a brake cylinder service port, means for controlling a local train pipe discharge port, and an auxiliary valve carried by the main slide valve and operated in a service application of the brakes by said'piston for supplying air to actuate said means.
  • a triple valve device for fluid pressure brakes comprising a piston, a main slide valve operated thereby and having a brake cylinder service port adapted in service application position a to register with a 7 brake cylinder port, a graduating slide valve for controlling said service port, means operated by How of air from-the auxiliary reservoir to the brake cylinder for controlling a local train pipe dischargeport', andan auxiliary valve carried by the main slide valve and operated by said piston in a service application of'the brakes for supplying air from the auxiliary reservoir to operate said 6.
  • a triple yalverdevicefor fluid pressure brakes comprising a piston, a main slide valve operatedthereby and having a brake cylinder service portadapted in scrvice'application position to register with a brake cylinder port, a graduating slide valve'for controlling said service port, a valve for controlling a local train pipe discharge port,
  • auxiliary valve operated by said piston and having a movement relative to the main valve for controlling said service port
  • second auxiliary valve carried by said main valve and having a movement relative to the main valve and operated by said piston for effecting the opening of a local train pipe discharge port in a service application of the brakes.
  • Atriple valve device comprising a piston, a main slide valve operated thereby and having a service port adapted in service application position to register with a brake cylinder port for supplying air from the auxiliary reservoir to the brake cylinder, an auxiliary valve operated by said piston and having a movement relative to the main valve for controlling said service port an emergency valve for venting the train pipe in an emergency application of the brakes, a valve carried by said emergency valve for locally venting the train pipe in a service application of the brakes, a movable abutment operated by flow of air from the auxiliary reservoir to the brake cylinder for opening said service train pipe vent valve,

Description

W. V TURNER. TRIPLE VALVE DEVICE.
AYPLIOATION FILED JAN. 19. 1911.
1,073,186, Patented Sept. 16, 1913.
WITNESSES INVENTOR COLUMBIA PLANOGRAPH co-, WASHINGTON. n. c.
urn s'rx'rns rxrnr prion WALTER V. TURNER, OE EDGEWOOD, PENNSYLVANIA, ASSIGNOR TO THE WESTING- HOUSE AIR BRAKECOMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORATION or PENNSYLVANIA.
To all whomit'mag conoem: 1'
Be it known that I, WA TE V. TURNER, a citizen of the United States, residing at Edgewood, in the county of Allegheny and State of Pennsylvania have invented new and "useful Improvements in Triple-Valve Devices, of which; the following'is a specification.
This invention relates to automatic fluid pressure brakes, and, has for its object to provide improved means for securing a local venting offluid from the train pipe in 1 service applications ofQthe brakes to thereby accelerate the movement of the SllCOGSSlVG' triple valves-throughout the train.
In the accompanying drawing; Figure 1 is a central sectional view ofa triple valve device embodying'my invention, showing the parts in normal full release position and Fig. 2a similar view, with the parts shown in service application position.
The triple valve device illustrated in the drawing is of the so called retarded release type for securing a more uniform release of the brakes, particularly on long trains, but I wish it understood that my present improvement may be applied to various other types of triple valves.
As shown in the drawings, the triple valve device may comprise a casing 1 having a piston chamber 2 connected by passage 3 to the train pipe and containing triple valve piston 4t, and having a valve chamber 5 open to the auxiliary reservoir and contain ing main slide valve 6 and auxiliary slide valve 7 mounted on the'main slide valve and having a' movement relative thereto.
A yielding resistance. device 8. serves as a stop for the piston 4 to determine the normal full release position of the valves and is adapted to yieldingly resist movement of said valves to an inner retarded release position in which. the exhaust from the brake munication from train pipe passage 3 to Specification of Letters Patent.
TRIPLE-VALVE DEVICE.
Patented Sept. 16, 1913.
Application filed January 19, 1911. Serial No. 603,560
said chamber and an emergency valve 15 adapted to control conununication from chamber 13 to a passage 16 leading to the brake cylinder. The valve 15 is provided with a projecting portion 1'7 adapted to be engaged by the stem 11 of piston 9, said valve being normally maintained seated by a spring 18. i
In addition to the graduating slide valve 7, an auxiliary puppet valve 19 is provided in the main slide valve 6 and this valve is operated by the movement of triple valve piston 4 in service applicationsto open communication from the auxiliary reservoir to a port 20 in the main slide valve, which port is adapted to register with a passage 21 leading to one side of the movable abutment 9.
The body of emergency valve 15 has a chamber containing a puppet valve 22 having a stem 23 adapted to project out through the portion 17, said valve being normally seated by a spring 24.
The train pipe being charged to the standard pressure in the usual manner, it it is desired to effect a service application of the brakes, a gradual reduction in train pipe pressure is made and the triple valve piston 4 is then moved outwardly. The first movement of said piston shifts the auxiliaryslide valve 7 to uncover service port 25 in the main slide valve and port 20. The main slide valve 6 is then actuated to cause the service port 25 to register with port 26 leading to the brake cylinder passage 27 and port 20 to register with passage 21. Fluid from the auxiliary reser voir then flows from the auxiliary reservoir to the brake cylinder through port 25 and fluid also flows through passage 21 to the outer face of the movable abutment 9. The abutment 9 is thereupon operated and the stem 11 engages the stem 23 and opens the valve 22 to thereby permit air to flow from the train pipe past check valve 14- to chamber 13 and thence through a restricted port 28 to passage 16 and the brake cylinder. A passage 29 leading to passage 16 is uncovered by the outward movement of piston 9 so that in the position shown in Fig. 2, the air flowing from the auxiliary reservoir through passage 21 flows through the passage 29 to the brake cylinder. The pressure on the outer face of said abutment is thus relieved and prevents any further outward movement of the abutment to open the emergency valve 15.
As soon as the auxiliary reservoir pressure becomes reduced by flow to the brake cylinder to a point slightly less than'the train pipe pressure, the triple valve piston moves inwardly and operates the auxiliary valves 7 and 19 to close the ports 25 and 20 respectively and the pressures then equaliz ing on opposite sides of the abutment 9, the same is shifted by the spring 30 to its normal position, permitting the valve 22 to close and prevent further venting of air from the train pipe. By making further gradual reductions in train pipe pressure, the auxiliary valves 7 and 19 may be again opened to supply air to the brake cylinder and also supply air to operate the abutment 9 and valve 22 to vent air from the train pipe in accordance with the operation hereinbefore described.
In an emergency application, the piston 4 moves out its full traverse and uncovers the usual large emergency port 31, Which supplies air to the abutment 9 in such volume as to cause same to move outwardly with full force and thereby lift the emergency valve 15 from its seat, to produce the usual emergency venting of air from the train pipe.
Having now described my invention,what I claim as new and desire to secure by Letters Patent, is
1. A triple valve device for fluid pressure brakes, comprising a piston, a main slide valve operated thereby and having a graduating port adapted to communicate with a brake cylinder port in service application position, an auxiliary valve movabl with the piston for controlling said graduating port, and a second auxiliary valve operated by said piston and adapted in service application position to effect the opening 01 a local train pipe discharge port.
2. A triple valve device for fluid pressure brakes, comprising a piston, a main slide valve operated thereby, a graduating slide valve mounted on said main slide valve and operated by the piston for controlling a brake cylinder service port, and an auxiliary puppet valve operated by said piston and adapted in service application position to effect the opening of a local train pipe discharge port.
8. A triple valve device for fluid pressure brakes, comprising a piston, a main slide valve operated thereby, a graduating slide valve mounted on said main slide valve and operated by the piston for controlling a brake cylinder service port, and an auxiliary valve mounted in the main slide valve and operated by said piston for efi'ecting the opening of a local train pipe discharge port.
-l-. A triple valve device for fluid pressure means.
brakes, comprising a piston, a main slide valve operated thereby, a graduating slide valve mounted on said main slide valve and operated by the piston for "controlling a brake cylinder service port, means for controlling a local train pipe discharge port, and an auxiliary valve carried by the main slide valve and operated in a service application of the brakes by said'piston for supplying air to actuate said means.
5. A triple valve device for fluid pressure brakes, comprising a piston, a main slide valve operated thereby and having a brake cylinder service port adapted in service application position a to register with a 7 brake cylinder port, a graduating slide valve for controlling said service port, means operated by How of air from-the auxiliary reservoir to the brake cylinder for controlling a local train pipe dischargeport', andan auxiliary valve carried by the main slide valve and operated by said piston in a service application of'the brakes for supplying air from the auxiliary reservoir to operate said 6. A triple yalverdevicefor fluid pressure brakes, comprisinga piston, a main slide valve operatedthereby and having a brake cylinder service portadapted in scrvice'application position to register with a brake cylinder port, a graduating slide valve'for controlling said service port, a valve for controlling a local train pipe discharge port,
a movable abutment operated by flow of air.
auxiliary reservoir to the brake cylinder,
an auxiliary valve operated by said piston and having a movement relative to the main valve for controlling said service port,"and a second auxiliary valve carried by said main valve and having a movement relative to the main valve and operated by said piston for effecting the opening of a local train pipe discharge port in a service application of the brakes.
8. Atriple valve device, comprising a piston, a main slide valve operated thereby and having a service port adapted in service application position to register with a brake cylinder port for supplying air from the auxiliary reservoir to the brake cylinder, an auxiliary valve operated by said piston and having a movement relative to the main valve for controlling said service port an emergency valve for venting the train pipe in an emergency application of the brakes, a valve carried by said emergency valve for locally venting the train pipe in a service application of the brakes, a movable abutment operated by flow of air from the auxiliary reservoir to the brake cylinder for opening said service train pipe vent valve,
10 and a second auxiliary valve operated by said piston in a service application of the brakes for supplying air to actuate said movable abutment.
In testimony whereof I have hereunto set my hand.
\VALTER V. TURNER.
Witnesses:
A. M. CLEMENTS, C. R. ROGERS.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,
Washington, D. C.
US1911603560 1911-01-19 1911-01-19 Triple-valve device. Expired - Lifetime US1073186A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040226520A1 (en) * 2003-05-12 2004-11-18 Ballard Jay A. Arrangement for tethering horses

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040226520A1 (en) * 2003-05-12 2004-11-18 Ballard Jay A. Arrangement for tethering horses

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