US201468A - Improvement in pump-valves - Google Patents

Improvement in pump-valves Download PDF

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Publication number
US201468A
US201468A US201468DA US201468A US 201468 A US201468 A US 201468A US 201468D A US201468D A US 201468DA US 201468 A US201468 A US 201468A
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US
United States
Prior art keywords
valve
pump
valves
improvement
pistons
Prior art date
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Expired - Lifetime
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
    • F16K15/065—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring spring pulling the closure member against the seat
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/067—Check valves with guided rigid valve members with guided stems stem guided at two or more points
    • 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
    • F16K47/00—Means in valves for absorbing fluid energy
    • F16K47/01—Damping of valve members
    • F16K47/011—Damping of valve members by means of a dashpot
    • F16K47/0111—Damping of valve members by means of a dashpot the valve members comprising a plunger sliding within a fixed dashpot
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/785—With retarder or dashpot
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7905—Plural biasing means

Definitions

  • Our invention relates to valves employed in steam-pumps; and it consists in a semi-cylindrical valve fitted to a suitable valve-seat, and provided with recesses in each end for receivin g a head formed on the rod of a small piston.
  • a piston is connected with each end of the valve, and works in a chamber or cylinder formed at the end of the water-way in the valve-seat.
  • A is a semi-cylindrical valve, having a T-shaped recess, 1), formed in each end; and B is a valve-seat, having the water-way O, and having at each end chambers or cylinders D, in which are placed pistons E, whose rods 0 are provided with T- shaped heads d, that are fitted to the recesses b in the ends of the valve A.
  • the object of this device is to prevent the too rapid rise or fall of the valve, to prevent pounding and consequent undue wear, by employing water under the above piston E as a cushion for modifying the action of the valve.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Description

J. TREGONING 8v M-.,HASTINGS.
Pump Valve.
No; 201,468. Patented March 19,1878..
wnusszs: v
ATTORNEYS.
UNITED STATES PATENT QFFICE.
JOHN TREGONTNG AND MICHAEL HASTINGS, OF BROOKLYN, NEW YORK.
IMPROVEMENT IN PUM P-VALVES.
Specification forming part of Letters Patent No. 201,468, dated March 19, 1878; application filed August 24, 1877.
sponding parts.
Our invention relates to valves employed in steam-pumps; and it consists in a semi-cylindrical valve fitted to a suitable valve-seat, and provided with recesses in each end for receivin g a head formed on the rod of a small piston.
A piston is connected with each end of the valve, and works in a chamber or cylinder formed at the end of the water-way in the valve-seat.
Referring to the drawing, A is a semi-cylindrical valve, having a T-shaped recess, 1), formed in each end; and B is a valve-seat, having the water-way O, and having at each end chambers or cylinders D, in which are placed pistons E, whose rods 0 are provided with T- shaped heads d, that are fitted to the recesses b in the ends of the valve A.
Above the pistons E, around the rods 0,
springs e are placed, which force the pistons downward. The pistons are not accurately fitted to their cylinders, sufficient space being left around them to permit of the escape of water from one side of the piston to the other.
The object of this device is to prevent the too rapid rise or fall of the valve, to prevent pounding and consequent undue wear, by employing water under the above piston E as a cushion for modifying the action of the valve.
Having thus described our invention, we claim as new and desire to secure by Letters Patentl. The combination, with a pump-valve, of two pistons working in cylinders formed at the ends of the water-way in the valve-seat, substantially as shown and described.
2. The combination of the pistons E with the valve A and the valve-seat B, having formed in it cylinders or chambers lD, substantially as shown and described.
JOHN TREGONING.
MICHAEL HASTINGS.
Witnesses to signature of John Tregoning:
(3310. M. HOPKINS, JAMES M. HENLEY.
US201468D Improvement in pump-valves Expired - Lifetime US201468A (en)

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US201468A true US201468A (en) 1878-03-19

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US201468D Expired - Lifetime US201468A (en) Improvement in pump-valves

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525487A (en) * 1944-10-17 1950-10-10 Westinghouse Electric Corp Relief device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525487A (en) * 1944-10-17 1950-10-10 Westinghouse Electric Corp Relief device

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