US149019A - Improvement in balance slide-valves - Google Patents

Improvement in balance slide-valves Download PDF

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Publication number
US149019A
US149019A US149019DA US149019A US 149019 A US149019 A US 149019A US 149019D A US149019D A US 149019DA US 149019 A US149019 A US 149019A
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Prior art keywords
valve
steam
valves
improvement
balance slide
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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
    • 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
    • Y10T137/86702—With internal flow passage

Definitions

  • my invention consists in the combination, with a cylindrical steam-chest having a steam passage at the top with inletports, outlet-ports at the bottom, and a round valve, of a valve-stem connected to the valve near the bottom, as will be hereinafter more fully set forth.
  • A represents the steam-chest, made in cylindrical form, and bolted to the cylinder of the engine in the usual place where the steamchests generally are bolted.
  • the cylindrical steam-chest A is provided with three ports, a a and b, the middle port b being for the exhaust and the side ports a a for the steam.
  • B represents the valve, made round to t the interior of the steam-chest A, and provided with a number of circumferential split metal or composition rings, cl d, placed in grooves around the valve for the purpose of making the valve perfectly steam-tight while covering the ports. Through the valve are passages c e to allow the steam to pass through the valve from either side of the valve to the open port.
  • G In the bottom of the valve is an exhaust-port, h, which will allow the steam to exhaust while passing over the steam-ports.
  • G is the valvestem, which is attached to the valve near the bottom in order to come in a line with the rocker-arm of the locomotive.
  • G is a steampassage on the upper part, extending nearly the entire length of the chest A.
  • D In its center is a steam-inlet, D, and at its bottom, near each end, is a small inlet-port, a2, which ports alternately convey the steam within the chest at alternate ends of the valve.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sliding Valves (AREA)

Description

R. WITTY.
Balance Slide-valves- NOA/19,019. Pa:entedMarch24,1874..
J/VIQN'ESSES. V/ i uw, @WWK .Attorney/s.
PATENT RICHARD wITTY, or sTUART, IOWA.
IMPROVEMENT IN BALANCE SLIDE-VALVES.
Specification forming part of Letters Patent No. 149,019, dated March 24,11874; application led January 20, 1874.
To all whom. it may concern:
Be it known that I, RICHARD WITTY, of Stuart, in the county of Adair and in the State of Iowa, have invented certain new and useful Improvements in Balance Slide-Valves 5 and do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings and to the letters of reference marked thereon, making a part of this speciiication.
The nature of my invention consists in the combination, with a cylindrical steam-chest having a steam passage at the top with inletports, outlet-ports at the bottom, and a round valve, of a valve-stem connected to the valve near the bottom, as will be hereinafter more fully set forth.
In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, in which- Figure l is a longitudinal section of the steam-chest and valve. Fig. 2 is a bottom view of the same. Fi g. 3 is a side view of the valve, and Fig. 4 is an end view of the same.
A represents the steam-chest, made in cylindrical form, and bolted to the cylinder of the engine in the usual place where the steamchests generally are bolted. The cylindrical steam-chest A is provided with three ports, a a and b, the middle port b being for the exhaust and the side ports a a for the steam. B represents the valve, made round to t the interior of the steam-chest A, and provided with a number of circumferential split metal or composition rings, cl d, placed in grooves around the valve for the purpose of making the valve perfectly steam-tight while covering the ports. Through the valve are passages c e to allow the steam to pass through the valve from either side of the valve to the open port. In the bottom of the valve is an exhaust-port, h, which will allow the steam to exhaust while passing over the steam-ports. G is the valvestem, which is attached to the valve near the bottom in order to come in a line with the rocker-arm of the locomotive. G is a steampassage on the upper part, extending nearly the entire length of the chest A. In its center is a steam-inlet, D, and at its bottom, near each end, is a small inlet-port, a2, which ports alternately convey the steam within the chest at alternate ends of the valve.
Having thus fully described my invent-ion, what I claim as new, and desire to secure by Letters Patent, isy The combination, with the cylindrical steamchest A with passage G and inlet-ports w a' at the top, and ports a t and b at the bottom, and valve B, of the valve-stem C connected to the valve near its bottom, as and for the purposes herein set forth.
In testimony that I claim the foregoing I have hereunto set my hand this 24th day of December, 1ST I RICHARD IVITTY.
Witnesses:
C. In. EVERT, JOHN S. LITTLE.
US149019D Improvement in balance slide-valves Expired - Lifetime US149019A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3211183A (en) * 1962-02-08 1965-10-12 Eickmann Karl Hydraulic or pneumatic controller
US3478781A (en) * 1967-11-16 1969-11-18 Colorado Mfg Corp Sliding block valve and actuating mechanism therefor
US3552429A (en) * 1967-10-05 1971-01-05 Armstrong Patents Co Ltd Hydraulic pistons
US4355505A (en) * 1979-04-28 1982-10-26 Zahnradfabrik Friedrichshafen, Ag Rotatable controller valve
US4359866A (en) * 1979-04-28 1982-11-23 Zahnradfabrik Friedrichshafen, Ag Rotatable controller system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3211183A (en) * 1962-02-08 1965-10-12 Eickmann Karl Hydraulic or pneumatic controller
US3552429A (en) * 1967-10-05 1971-01-05 Armstrong Patents Co Ltd Hydraulic pistons
US3478781A (en) * 1967-11-16 1969-11-18 Colorado Mfg Corp Sliding block valve and actuating mechanism therefor
US4355505A (en) * 1979-04-28 1982-10-26 Zahnradfabrik Friedrichshafen, Ag Rotatable controller valve
US4359866A (en) * 1979-04-28 1982-11-23 Zahnradfabrik Friedrichshafen, Ag Rotatable controller system

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