US587094A - Combined pressure and vacuum valve - Google Patents

Combined pressure and vacuum valve Download PDF

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Publication number
US587094A
US587094A US587094DA US587094A US 587094 A US587094 A US 587094A US 587094D A US587094D A US 587094DA US 587094 A US587094 A US 587094A
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Prior art keywords
valve
pressure
combined pressure
vacuum valve
seat
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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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
    • F16K17/19—Equalising valves predominantly for tanks
    • F16K17/196—Equalising valves predominantly for tanks spring-loaded
    • 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
    • Y10T137/7771—Bi-directional flow valves
    • Y10T137/7772—One head and seat carried by head of another
    • Y10T137/7774—Supporting valve spring carried by supporting valve
    • Y10T137/7775—Spring stop on supported valve stem

Definitions

  • the upper portion of the body B is provided with internal screw threads E, which are adapted to be engaged by the threaded portion of a cap F, which latter is provided with a series of ports G.
  • the lower wall or edge H of the cap F serves as an abutment or stop for the top surface M of the pressure-valve K, located thereunder, said valve having an annular body portion which yis adapted .to rest on the valve-seat J, said body portion being bridged by the web K and having depending therefrom the wings or guides L,
  • vN designates an opening through the web K', through which the stem P of the vacuumvalve Q passes, said valve seating upwardly in the present instance in opposite directions to the pressure-valve and being adapted to contact with a suitable valve-seat R, located in said pressure-valve.
  • S designates a nut or projection mounted upon the vacuum-valve stem P and adapted to have one end of a spring T bearing ythereupon, the other end of said spring abutting against the web K', whereby the normal tendency of said spring T is to always hold the vacuum-valve Q against its seat R.
  • the operation is as follows: The valve is secured in a cask in the manner indicated in Fig. 1, and when for any reason the pressure within the cask or body B of the valve increases to a dangerous degree the valve K will be raised by reason of the pressure upon the under side of the valve-Q, and said pressure will be allowed to escape through the ports G, the edge H of the cap F serving to retain the valve K in position and prevent it from displacement under all conditions and to also assist in limiting the upward movement thereof. Said'valve, after the pressure has beenV reduced, returns to its former position and is again seated.
  • a body having a seat therein, a pressure-valve supported on said seat, a cap supported on said body, said cap serving as a closure therefor and adapted to limit the movement and prevent displacement of said pressure-valve, a web extending across the latter and having an opening therein, a vacuum-valve adapted to seat upon said pressure-valve in an opposite direction to the movement of the latter, a stem attached to said vacuum-valve and passing through said opening, a nut or projection on said stem and a spring interposed between said projection and web and adapted to hold said vacuum-valve normally upon its seat.

Description

(No Model.) v
H. GOBHRING. COMBINED PRESSURE AND VAGUUM VALVE.
No. v587,0 94. n
Patented July 2'7 lll.
wlTNEssEs Y E N R O T T nn HENRY GOEHRING, OF PHILADELPHIA,
PATENT OFFICE.
PENNSYLVANIA.
COMBINED PRESSURE AND VACUUiVl VALVE.
SPECIFICATION forminglpart of Letters Patent No. 587,094, dated July 27, 1897.
Application filed March ll, 1897.
To all whom it may concern:
" Beit known that I, HENRY GOEHRING, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Improvement in a Combined Pressure and Vacuv um Valve, which improvement is fully set or body B, the lower portion of which is provided with screw-threads O, and the flange D, adapted to enter and engage, respectively, a cask, barrel, &c., B.
The upper portion of the body B is provided with internal screw threads E, which are adapted to be engaged by the threaded portion of a cap F, which latter is provided with a series of ports G. The lower wall or edge H of the cap F serves as an abutment or stop for the top surface M of the pressure-valve K, located thereunder, said valve having an annular body portion which yis adapted .to rest on the valve-seat J, said body portion being bridged by the web K and having depending therefrom the wings or guides L,
which may be three or more in number, according to requirements.
vN designates an opening through the web K', through which the stem P of the vacuumvalve Q passes, said valve seating upwardly in the present instance in opposite directions to the pressure-valve and being adapted to contact with a suitable valve-seat R, located in said pressure-valve.
S designates a nut or projection mounted upon the vacuum-valve stem P and adapted to have one end of a spring T bearing ythereupon, the other end of said spring abutting against the web K', whereby the normal tendency of said spring T is to always hold the vacuum-valve Q against its seat R.
serial No. 627,031. (No model.)
The operation is as follows: The valve is secured in a cask in the manner indicated in Fig. 1, and when for any reason the pressure within the cask or body B of the valve increases to a dangerous degree the valve K will be raised by reason of the pressure upon the under side of the valve-Q, and said pressure will be allowed to escape through the ports G, the edge H of the cap F serving to retain the valve K in position and prevent it from displacement under all conditions and to also assist in limiting the upward movement thereof. Said'valve, after the pressure has beenV reduced, returns to its former position and is again seated. When for any reason there is a vacuum occasioned within the cask, as soon as the pressure of the atmosphere upon the valve Q becomessuficiently great to overcome the tension of the spring T the valve Q will be unseated or moved downwardly, and air will pass into the cask until the pressure within and without the latter or its valve is in substantial equilibrium.
It will be observed that by the employment of the web K' and the stem P with the nut or projection thereon and the spring interposed between said nut and web I am enabled to economize space and to simplify the invention, thereby greatly reducing the cost of production.
Having Vthus described my invention, what I claim as new, and desire to secure by Letters Patent, is-
In a combined pressure and vacu um valve, a body having a seat therein, a pressure-valve supported on said seat, a cap supported on said body, said cap serving as a closure therefor and adapted to limit the movement and prevent displacement of said pressure-valve, a web extending across the latter and having an opening therein, a vacuum-valve adapted to seat upon said pressure-valve in an opposite direction to the movement of the latter, a stem attached to said vacuum-valve and passing through said opening, a nut or projection on said stem and a spring interposed between said projection and web and adapted to hold said vacuum-valve normally upon its seat.
HENRY GOEHRING.
IOO
US587094D Combined pressure and vacuum valve Expired - Lifetime US587094A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735443A (en) * 1956-02-21 Automatic bi-directional flow valves

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735443A (en) * 1956-02-21 Automatic bi-directional flow valves

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