US147614A - Improvement in check-valves - Google Patents

Improvement in check-valves Download PDF

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US147614A
US147614A US147614DA US147614A US 147614 A US147614 A US 147614A US 147614D A US147614D A US 147614DA US 147614 A US147614 A US 147614A
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seat
valve
check
valves
improvement
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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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • 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
    • Y10T137/7908—Weight biased
    • Y10T137/7909—Valve body is the weight
    • Y10T137/7913—Guided head
    • Y10T137/7915—Guide stem
    • Y10T137/792—Guide and closure integral unit

Definitions

  • A represents the globeshaped elbow-piece, to whose tubular extension 13 the steam or water pipes are screwed under suitable angle in the usual manner.
  • the valve-seat (J is cast in one piece, wit-h the globe part A projecting in the shape of a cup horizontally from the entrance side of the steam, the lower outer part of seat 0 being curved upward, while the upper part projects vertically downward, narrowing the steam-entrance pipe, and connecting the same with the cup-shaped seat in the form of an S, to the aperture of which the valve D is closely fitted.
  • the steam enters below the valve D, in the manner indicated by arrows in the drawing, presses equally on all parts of the same, and lifts it vertically from the seat.
  • the valvestem at is guided in a ring-shaped extension,
  • the globe-shaped elbow A forms an annular chamber around the cupshaped seat, through which the steam or water is easily conducted to the exit-pipe, their return being checked in an effective manner by their vertical downward pressure exerted on the valve, securing it more tightly in its seat.
  • the valve works thus easily in both direct-ions, and forms by its position at the el bow-joint of the pipes a very convenient and efficient connection of the same.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Massaging Devices (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Finger-Pressure Massage (AREA)

Description

Witnesses: Inventor: 65, K) WWW n C/ M. aw? Per r 5 I f t Attorneys.
A Mimi t NITED STATES MARSHALL T. DAVIDSON, OF BROOKLYN, NEW YORK.
IMPRQVEMENT IN CHECK-VALVES.
Specification forming part of Letters Patent No. 14?,614, dated February 17, 1874; application filed November 15, 1873.
To all whom it may concern:
Be it known that I, MARSHALL T. DAVLD- SON, of Brooklyn, in the county of Kings and State of New York, have invented a new and Improved Check-Valve, of which the following is a specification:
The accompanying drawing represents a vertical central section of my improved checkvalve.
The invention will first be fully described, and then pointed out in the claim.
In the drawing, A represents the globeshaped elbow-piece, to whose tubular extension 13 the steam or water pipes are screwed under suitable angle in the usual manner. The valve-seat (J is cast in one piece, wit-h the globe part A projecting in the shape of a cup horizontally from the entrance side of the steam, the lower outer part of seat 0 being curved upward, while the upper part projects vertically downward, narrowing the steam-entrance pipe, and connecting the same with the cup-shaped seat in the form of an S, to the aperture of which the valve D is closely fitted. The steam enters below the valve D, in the manner indicated by arrows in the drawing, presses equally on all parts of the same, and lifts it vertically from the seat. The valvestem at is guided in a ring-shaped extension,
I), of screw-cap E, which is placed vertically.
above the seat 0, being easily detachable, and allowing thereby convenient access to the interior of the valve. The globe-shaped elbow A forms an annular chamber around the cupshaped seat, through which the steam or water is easily conducted to the exit-pipe, their return being checked in an effective manner by their vertical downward pressure exerted on the valve, securing it more tightly in its seat. The valve works thus easily in both direct-ions, and forms by its position at the el bow-joint of the pipes a very convenient and efficient connection of the same.
Having thus described my invention, I claim as new and desire to secure by Letters Iatent-- The combination of the globe-shaped elbow, having a horizontal valve-seat, as described, with a screw-cup arranged vertically above the seat, with ring-shaped extension for guiding the valve in a vertical direction, substantially as and for the purposes set forth.
MARSHALL T. DAVIDSON.
Witnesses:
HENRY BARAGWANATH, RIoHD. LoPPIN.
US147614D Improvement in check-valves Expired - Lifetime US147614A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050216306A1 (en) * 2004-03-24 2005-09-29 Benjamin Atkinson Evidence-based extender system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050216306A1 (en) * 2004-03-24 2005-09-29 Benjamin Atkinson Evidence-based extender system

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