US582053A - Angle-cock for air-brake pipes - Google Patents
Angle-cock for air-brake pipes Download PDFInfo
- Publication number
- US582053A US582053A US582053DA US582053A US 582053 A US582053 A US 582053A US 582053D A US582053D A US 582053DA US 582053 A US582053 A US 582053A
- Authority
- US
- United States
- Prior art keywords
- train
- air
- valve
- port
- angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000007990 PIPES buffer Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000003247 decreasing Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/01—Spray pistols, discharge devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
-
- 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
- Y10T137/877—With flow control means for branched passages
- Y10T137/87829—Biased valve
- Y10T137/87837—Spring bias
- Y10T137/87861—Spring coaxial with valve
- Y10T137/87869—Biased open
Definitions
- My invention relates to improvements in angle-cocks for the train-pipes of fluid-pressure air-brakes of that class or description in which the brakes are set by reducing the pressure in the train-pipe.
- the object of the invention is to provide an improved construction of the same,whereby should any of the angle-cocks of the train be closed by unauthorized persons or through accident or carelessness the brakes of the entire train will be set and the train be stopped.
- Figure 1 is a side elevation of an'angle-cock constructed in accordance with my invention.
- Fig. 2 is a transverse section of the same, showing the valve open.
- Fig. 3 is a similar view showing the valve closed.
- Fig. 4 is a plan View.
- the reference-hum eral 1 designates the train'pi pe,which contains the air under pressure by which the brakes are set by decreasing the pressure therein through the engineers valve in'the locomotive-cab, as usual.
- the numeral 2 designates the valve-casing, having a tapering bore, in which is seated a correspondiugly-tapered plug-valve 3, which is operated by the usual handle.
- the numeral 4E designates a coiled spring bearing against the lower end of the valve.
- the said. valve is formed with a port or opening 5, which when the valve is open is alined with the train-pipe, so as to allow a free passage of the air. At one side the valve is formed with a port or opening 6, intersecting or communicating with the opening or port 5.
- Cast integral with said valve-casing is a cylinder 7, provided with an inclined port 8, communicatingwith the lower end thereof and with the tapering bore of the valve-casing. Also communicating with said cylinder, above port 8, is an inclined port 9,1eading to the train-pipe and communicating therewith. (See dotted lines, Fig. 1.)
- the cylinder is also provided with outlet-openings 10 and 12, leading to the atmosphere.
- two pistons 13 and 14 Located in. said cylinder are two pistons 13 and 14, connected together by means of a valve-stem 15, and against the upper piston 13 abuts a coiled spring 17.
- the numerals 18 and 19 designate screwcaps, closing thelower ends of the cylinder and valve-casing, respectively.
- the said pistons are provided with packing-rings 20.
- the passage or port 9 com municates with the train-pipe, and so long as there is any pressure in the train-pipe it has a free passage through said port into the cylinder between the said pistons, thus maintainin g the same pressure in the cylinder that The' air from Thus there is in the train-pipe.
- These pistons are of the same diameter, and consequently their areas are the same, so that they are balanced, and therefore the spring 17 is employed to force them down and almost close the outletopenings 10 and 12. It will be seen that when said pistons are in normal position the openings 10 and 12 are partially opened above and below the pistons, respectively, so that in case any air should leak from the plug-valve or around the packingrings of the pistons it can escape.
- valve of the last car of the train is closed, and as port 6 will then be open to the atmosphere the pistons will not be elevated and the pressure in the train p'ipe will be maintained.
Description
2 Sheets-Sheet 1.
(No Model.)
Patented May 4; 1897.
I I IlIlllm M. G. GLENN. ANGLE 000K FOB AIR BRAKE PIPES.
mil
awn/nu; a.
2 Sheets-Sheet 2.
(No Model.)
M. G. GLENN. ANGLE 000K FOR AIR BRAKE PIPES.
II'UIIIIIIIR L unn- .I'illlllhl Patented May 4, 1897;
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Q Vi/bne V llnrrnn rnrns Parent rrrcn.
MILES CIUROE GLENN, OF DURHAM, NORTH CAROLINA.
ANGLE-COCK FOR AlR BRAKE PIPES.
SPECIFICATION forinin part of Letters Patent No. 582,053 dated Ma 4 1897.
g a y Application filed December 23, 1896-. Serial No. 616,697. (No model.)
To ctZZ whom it may concern:
Be it known that I, MILES Cronon GLENN, a citizen of the United States, and a resident of Durham, in the county of Durham and State of North Carolina, have invented certain new and useful Improvements in Anglo- Oocks for Air-Brake Pipes; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.
My invention relates to improvements in angle-cocks for the train-pipes of fluid-pressure air-brakes of that class or description in which the brakes are set by reducing the pressure in the train-pipe.
The object of the invention is to provide an improved construction of the same,whereby should any of the angle-cocks of the train be closed by unauthorized persons or through accident or carelessness the brakes of the entire train will be set and the train be stopped.
The invention consists in the novel construction and combination of parts herein- I after fully described and claimed.
In the accompanying drawings, Figure 1 is a side elevation of an'angle-cock constructed in accordance with my invention. Fig. 2 is a transverse section of the same, showing the valve open. Fig. 3 is a similar view showing the valve closed. Fig. 4 is a plan View.
In the said drawings the reference-hum eral 1 designates the train'pi pe,which contains the air under pressure by which the brakes are set by decreasing the pressure therein through the engineers valve in'the locomotive-cab, as usual.
The numeral 2 designates the valve-casing, having a tapering bore, in which is seated a correspondiugly-tapered plug-valve 3, which is operated by the usual handle. (Not shown The numeral 4E designates a coiled spring bearing against the lower end of the valve. The said. valve is formed with a port or opening 5, which when the valve is open is alined with the train-pipe, so as to allow a free passage of the air. At one side the valve is formed with a port or opening 6, intersecting or communicating with the opening or port 5.
Cast integral with said valve-casing is a cylinder 7, provided with an inclined port 8, communicatingwith the lower end thereof and with the tapering bore of the valve-casing. Also communicating with said cylinder, above port 8, is an inclined port 9,1eading to the train-pipe and communicating therewith. (See dotted lines, Fig. 1.) The cylinder is also provided with outlet- openings 10 and 12, leading to the atmosphere. Located in. said cylinder are two pistons 13 and 14, connected together by means of a valve-stem 15, and against the upper piston 13 abuts a coiled spring 17. I
The numerals 18 and 19 designate screwcaps, closing thelower ends of the cylinder and valve-casing, respectively. The said pistons are provided with packing-rings 20.
The operation is as follows: The brakes having been coupled up and tested and the train-pipe charged as usual, the valve is opened and will occupy the position shown in Fig. 1, so that air can pass through. the
As before stated, the passage or port 9 com municates with the train-pipe, and so long as there is any pressure in the train-pipe it has a free passage through said port into the cylinder between the said pistons, thus maintainin g the same pressure in the cylinder that The' air from Thus there is in the train-pipe. These pistons are of the same diameter, and consequently their areas are the same, so that they are balanced, and therefore the spring 17 is employed to force them down and almost close the outletopenings 10 and 12. It will be seen that when said pistons are in normal position the openings 10 and 12 are partially opened above and below the pistons, respectively, so that in case any air should leak from the plug-valve or around the packingrings of the pistons it can escape.
It will be noticed. that when the cock is turned as described the pressure is reduced in the train-pipe on both sides of the plugvalve, so that the brakes of the entire train are set.
It Will be understood that the valve of the last car of the train is closed, and as port 6 will then be open to the atmosphere the pistons will not be elevated and the pressure in the train p'ipe will be maintained.
When the pressure under piston 14 has been extending through the same, and a port intersecting the same, of the cylinder having a passage communicating with said casing, and a passage leading to the train-pipe and with outlet-openings, the piston-rod, the pistons connected therewith and the coiled spring for seating said pistons; all constructed and operating substantially as described.
In testimony that I claim the foregoing as my own I have hereunto aflixed my signature in presence of two Witnesses.
MILES OIOROE GLENN.
Witnesses W. J. HoLLoWAY, W. B. HURLY.
Publications (1)
Publication Number | Publication Date |
---|---|
US582053A true US582053A (en) | 1897-05-04 |
Family
ID=2650729
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US582053D Expired - Lifetime US582053A (en) | Angle-cock for air-brake pipes |
Country Status (1)
Country | Link |
---|---|
US (1) | US582053A (en) |
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0
- US US582053D patent/US582053A/en not_active Expired - Lifetime
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