US148075A - Improvement in piston balance-valves for steam-engines - Google Patents
Improvement in piston balance-valves for steam-engines Download PDFInfo
- Publication number
- US148075A US148075A US148075DA US148075A US 148075 A US148075 A US 148075A US 148075D A US148075D A US 148075DA US 148075 A US148075 A US 148075A
- Authority
- US
- United States
- Prior art keywords
- steam
- valves
- improvement
- engines
- case
- 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
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Classifications
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- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
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- 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
- Y10T137/8667—Reciprocating valve
- Y10T137/86694—Piston valve
- Y10T137/8671—With annular passage [e.g., spool]
Definitions
- This invention relates to certain improvements in that class of steam-valves known as pistonvali'es; and the invention consists of a tapering sleeve or bush arranged within the valve-case, having an external annular depression, an opening over the exhaust-port, and diagonal port-openings, as hereinafter more fully specified and claimed.
- Figure l is a vertical longitudinal section of a valve and steam-chest containing my im provement.
- Fig. 2 is a detached view of the before-mentioned sleeve which embodies my improvement.
- B is a sleeve whose outside surface is straight from one end to the other, but is made slightly tapering from end to end, so that one end is a little smaller in diameter than the other.
- tapering sleeve or bush 13 having an external annular depression and an opening over the exhaust-port, and provided with diagonal openings 1), substantially as and for the purpose described.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
S. MALTBY.
Piston Balance-Valves for steam-Engin'ess. N0.l48,075, I Patent ed March3.187-4.
Wifmasscs. Invert-tor. /L W i UNITED STATES PATENT OFFIoE.
SIDNEY MALTBY, OF CLEVELAND, OHIOL IMPROVEMENT IN PISTON BALANCE-VALVES FOR STEAM-ENGINES.
Specification forming part of Letters Patent No. 148,075, dated March 3, 1874; application filed February 2, i874.
To all whom it may concern:
Be it known that I, SIDNEY MALTBY, of
Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain Improvements in Piston Balance-Valves, of which the following is a spcification:
This invention relates to certain improvements in that class of steam-valves known as pistonvali'es; and the invention consists of a tapering sleeve or bush arranged within the valve-case, having an external annular depression, an opening over the exhaust-port, and diagonal port-openings, as hereinafter more fully specified and claimed. I To enable my invention to be fully understood, I will proceed to describe the same in edetail with reference to the accompanying drawing.
Figure l is a vertical longitudinal section of a valve and steam-chest containing my im provement. Fig. 2 is a detached view of the before-mentioned sleeve which embodies my improvement.
' Arepresents the case of the valve, the inside surface being provided with annular chambers forinin g the steam-ports leading to the cylinder. B is a sleeve whose outside surface is straight from one end to the other, but is made slightly tapering from end to end, so that one end is a little smaller in diameter than the other. By this meansit is easily made rectly over the exhaust-port.
to fit inside the case A. There is also a slight annular depression in the outer surface of the said sleeve B, in width corresponding to the exhaust-chamber in the case A. A portion of the under side of the sleeve B is cut away di- Through the sleeve B are also made diagonal openings 1) I), connected with the annular lead-ports in the case A. G is a piston-valve fitted to play inside of the sleeve B. This valve and case may set inside of a steam-chest, in which case the case A need not have heads attached, .but should the valve and case be used or placed on a cylinder alone, then the-ends of the case A must be closed with closely-fitting heads. Making the openings 1) diagonal makes the valve-wear alike on its whole surface.
I am aware that it is not new to provide valve-cases with interior bushings, and I do not desire to claim this.
But what I do claim is- The tapering sleeve or bush 13, having an external annular depression and an opening over the exhaust-port, and provided with diagonal openings 1), substantially as and for the purpose described.
SIDNEY MALTBY.
Witnesses:
GEO. W. TIBBITTS, CHARLES A. STrnLn
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US148075A true US148075A (en) | 1874-03-03 |
Family
ID=2217488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US148075D Expired - Lifetime US148075A (en) | Improvement in piston balance-valves for steam-engines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US148075A (en) |
-
0
- US US148075D patent/US148075A/en not_active Expired - Lifetime
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