US136618A - Improvement in relief-valves for locomotives - Google Patents
Improvement in relief-valves for locomotives Download PDFInfo
- Publication number
- US136618A US136618A US136618DA US136618A US 136618 A US136618 A US 136618A US 136618D A US136618D A US 136618DA US 136618 A US136618 A US 136618A
- Authority
- US
- United States
- Prior art keywords
- valve
- relief
- steam
- valves
- cylinders
- 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
- 230000003137 locomotive Effects 0.000 title description 12
- 238000009825 accumulation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/161—Control arrangements for fluid-driven presses controlling the ram speed and ram pressure, e.g. fast approach speed at low pressure, low pressing speed at high pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/505—Pressure control characterised by the type of pressure control means
- F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
- F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
Definitions
- the first part of my invention relates to an improvement in the construction of reliefvalves, whereby the steamjoint between the valve and its seat is made durable.
- the sec 0nd part of my invention relates to the connectionbetween therelief-valves and the steamchests and cylinders of locomotive-engines, whereby heated atmospheric air is introduced into them in order to prevent the loosening of their steam-joints bythe introduction of cold air, and to prevent the accumulation of water by condensation on the readmission of steam into the chests and cylinders.
- Figure l is a plan of my improved relief; valve viewed from beneath.
- Fig. 2 is a vertical section of the same in the line a: m, Fig. 1, excepting the valve itself, which is shown in elevation.
- Fig. 3 shows two of my reliefvalves with the connection between them and the steam-chests and cylinders of a locomotiveengine.
- A is the valve, which I construct witha balljoint and a spindle, B, which, by working up and down in the sockets or hubs O and O, is kept in position.
- the wings or brackets D serve to strengthen the shoulder or connection between the valve A and the spindle B.
- the case G and the cap H, against which the top of the spindle B strikes, may be constructed in any desired form.
- the outlet-pipe I unites the relief-valve to the steampipe K at its top in the smoke-arch, by which the valve is connected with the steam-chests and cylinders.
- the relief-valve may be united to the dry-pipe of the locomotive at any desired point.
- My improved relief-valve being constructed and connected with the steam-chests and cylinders of a locomotive as hereinbefore described, will operate as follows: Whenever a vacuum tends to form in either cylinder, (and this will 2, through the outlet-pipe I,into the steam-pipe K; here it is heated and passes in this condition into the steam-chests and cylinders alternately, so long as steam is shut off, and, while preventing the vacuum which would otherwise form in the cylinders by being heated, prevents the frequent contracting and expan ding of the steam-chests and cylinders, which would necessarily occur were cold air introduced into them every time steam were shut off with the locomotive in motion.
- the relief-valve is united to the steam-pipe, to have one or more coils in the uniting-pipe within the smokearch, so as to afford additional heating-surface to which the inrushing air may be exposed.
- the same end may be accomplished by making some portion of .the'smoke-arch double, and by passing the air between the plates either before or after entering the relief-valve.
- a relief -valve constructed with spiral Wings in the bush or seat or on the valve-stem, substantially as and for the purpose hereinbefore set forth.
- a relief-valve connected to the steamchest or cylinder of a locomotive-engine by apipe, arranged substantially as described, so that atmospheric air introduced therein by means of said relief-valve maybe heated while passing through said pipe before enteringthe steam-chest or cylinder, for the purpose hereinbefore set forth.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Description
ofWpmoHAnosoN.
Relief-Valoes for Locomotives.
No. 136,618, PatentedMarch11,1873.
TVi'ZHesQf J a q v UNITED STATESK PATENT. Orrron.
GEORGE W. RICHARDSON, OF TROY, NEW YORK.
IMPROVEMENT IN RELIEF-VALVES FOR LOCOMOTIVES.
Specification forming part of Letters Patent No. 136,618, dated March 11, 1873.
To all whom it may concern.-
Be it known that I, GEO. W. RICHARDSON, of Troy, in the county of Rensselaer and State of New York, have invented certain Improvements in Anti-Vacuum or Belief Valves for preventing the formation of a vacuum in the cylinders of locomotive-engines, of which the following is a specification:
The first part of my invention relates to an improvement in the construction of reliefvalves, whereby the steamjoint between the valve and its seat is made durable. The sec 0nd part of my invention relates to the connectionbetween therelief-valves and the steamchests and cylinders of locomotive-engines, whereby heated atmospheric air is introduced into them in order to prevent the loosening of their steam-joints bythe introduction of cold air, and to prevent the accumulation of water by condensation on the readmission of steam into the chests and cylinders.
Figure l is a plan of my improved relief; valve viewed from beneath. Fig. 2 is a vertical section of the same in the line a: m, Fig. 1, excepting the valve itself, which is shown in elevation. Fig. 3 shows two of my reliefvalves with the connection between them and the steam-chests and cylinders of a locomotiveengine.
A is the valve, which I construct witha balljoint and a spindle, B, which, by working up and down in the sockets or hubs O and O, is kept in position. The wings or brackets D serve to strengthen the shoulder or connection between the valve A and the spindle B. Just beneath the valve A, between the hub G and bush F, I construct spiral wings E. These spiral wings may be constructed on the spindle B itself, either below or above the valve A. The case G and the cap H, against which the top of the spindle B strikes, may be constructed in any desired form. The outlet-pipe I unites the relief-valve to the steampipe K at its top in the smoke-arch, by which the valve is connected with the steam-chests and cylinders. The relief-valve may be united to the dry-pipe of the locomotive at any desired point.
My improved relief-valve, being constructed and connected with the steam-chests and cylinders of a locomotive as hereinbefore described, will operate as follows: Whenever a vacuum tends to form in either cylinder, (and this will 2, through the outlet-pipe I,into the steam-pipe K; here it is heated and passes in this condition into the steam-chests and cylinders alternately, so long as steam is shut off, and, while preventing the vacuum which would otherwise form in the cylinders by being heated, prevents the frequent contracting and expan ding of the steam-chests and cylinders, which would necessarily occur were cold air introduced into them every time steam were shut off with the locomotive in motion. The leaking of their steam-joints which would be occasioned thereby is by this means prevented. The accumulation of water in the cylinders by condensation every time steam is readmitted after running with it shut off, providing cold air has been admitted, is also prevented, and the damage to which thepistonrods and cylinder-heads would be exposed is hereby avoided.
In order to make sure that the air is suflicient-ly heated at all times before entering the steam-chests, I prefer, when the relief-valve is united to the steam-pipe, to have one or more coils in the uniting-pipe within the smokearch, so as to afford additional heating-surface to which the inrushing air may be exposed. The same end may be accomplished by making some portion of .the'smoke-arch double, and by passing the air between the plates either before or after entering the relief-valve.
The current of air rushingin and through the relief-valve is so directed by the spiral wings E that by striking against the valve A the momentum of the air turns the valve about from left to right or from right to left, according as the spiral wings are inclined from left to right or from right to left. By this means the steam-joint between the valve and its seat is rendered durable by the valve constantly seating itself in different places.
I claim as my invention 1. A relief -valve constructed with spiral Wings in the bush or seat or on the valve-stem, substantially as and for the purpose hereinbefore set forth.
2. The combination of .a relief-valve with the steam-pipe, or with the dry-pipe and steampipe of a locomotive, substantially as and for the purpose hereinbefore set forth.
3. A relief-valve connected to the steamchest or cylinder of a locomotive-engine by apipe, arranged substantially as described, so that atmospheric air introduced therein by means of said relief-valve maybe heated while passing through said pipe before enteringthe steam-chest or cylinder, for the purpose hereinbefore set forth.
GEO. W. RICHARDSON. Witnesses:
WM. H. POOR, FRED. W. RICHARDSON.
Publications (1)
Publication Number | Publication Date |
---|---|
US136618A true US136618A (en) | 1873-03-11 |
Family
ID=2206034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US136618D Expired - Lifetime US136618A (en) | Improvement in relief-valves for locomotives |
Country Status (1)
Country | Link |
---|---|
US (1) | US136618A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100269021A1 (en) * | 2007-09-05 | 2010-10-21 | Gower Kevin C | Method for Performing Error Correction Operations in a Memory Hub Device of a Memory Module |
-
0
- US US136618D patent/US136618A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100269021A1 (en) * | 2007-09-05 | 2010-10-21 | Gower Kevin C | Method for Performing Error Correction Operations in a Memory Hub Device of a Memory Module |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US136618A (en) | Improvement in relief-valves for locomotives | |
US725893A (en) | Blow-off cock. | |
US133847A (en) | Improvement in steam-pumps | |
US171086A (en) | Improvement in throttle-valves | |
US696847A (en) | Vacuum and water relief valve apparatus for locomotives. | |
US152659A (en) | Improvement in suctxon air-pumps for locomotives | |
US617331A (en) | Rotary steam-valve | |
US130759A (en) | Improvement in feed-water heaters for locomotives | |
US126600A (en) | Improvement in aerated steam-generators | |
US602392A (en) | cleveland | |
USRE7585E (en) | Improvement in combined high and low pressure engines | |
US133751A (en) | Improvement in steam water-elevators | |
US228742A (en) | eames | |
US124373A (en) | Improvement in feed-water heaters | |
US116568A (en) | Improvement in toy-locomotive steam-engines | |
US642007A (en) | Throttle-valve. | |
USRE4894E (en) | Improvement in steam-enginery for surface-condensers | |
US129647A (en) | Improvement in steam vacuum-pumps | |
US819752A (en) | Steam-motor. | |
US360834A (en) | Oooooo | |
US440719A (en) | Steam and vacuum pump | |
US635696A (en) | Exhaust-relief for locomotive-engines. | |
US202144A (en) | Improvement in variable exhausts for locomotives | |
US304186A (en) | Slide-valve | |
US141343A (en) | Improvement in steam-engines |