US629449A - Check-valve. - Google Patents

Check-valve. Download PDF

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Publication number
US629449A
US629449A US1899713350A US629449A US 629449 A US629449 A US 629449A US 1899713350 A US1899713350 A US 1899713350A US 629449 A US629449 A US 629449A
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United States
Prior art keywords
valve
check
closed
seat
packing
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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Inventor
James John Locke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
T E WILSON
Original Assignee
T E WILSON
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by T E WILSON filed Critical T E WILSON
Priority to US1899713350 priority Critical patent/US629449A/en
Application granted granted Critical
Publication of US629449A publication Critical patent/US629449A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • F16K15/033—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member spring-loaded
    • 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
    • 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]
    • Y10T137/7854—In couplings for coaxial conduits, e.g., drill pipe check valves
    • 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]
    • Y10T137/7898—Pivoted valves

Definitions

  • My invention relates generally to checkvalves, and more particularly to that class of Io check-valves adaptable for use in the feedwater pipes of steam-boilers, the object of the invention being to provide a strong, neat, cheap, reliable, and durable, valve the nse'of which will avoid many of the accidents and r difficulties encountered in the use of ordinary check-valves.
  • Figure l is a vertical sectional view on a plane cutting longitudinally through a checkvalve constructed in accordance with my invention, the valve being closed.
  • Fig. 2 is a transverse vertical section taken on the plane indicated by the dotted line 2 2 of Fig. 1, looking in the direction of the arrow.
  • Fig. 3 is a 5 similar view to Fig. 1, the valve being open and the ends of the case broken away.
  • Fig. 4 is a detail perspective view of the valve removed from the ease.
  • A indicates the casing or frame of the valve,which has cylindrical threaded ends B B to receive pipes, a cubical central chamber in which the valve works and in one side of which is the valve-seat O, and avertieal extension D of the central box or chamber, through which the valve can be inserted or removed, said extension being closed by the screw-cap E.
  • valve F indicates the valve, which is made, preferably, of brass or analogous metal, is rectangular in outline, has a fiat rear face and a convex front face, and is provided with a series of slots G near its upper edge to engage over hooks II, and thereby pivotally support the valve with a normal tendency to hang in its closed position.
  • a square sheet I of asbestos packing On the rear flat face of the valve F is a square sheet I of asbestos packing, in position to lie between the valve and its seat when the valve is closed, such packing being held in place on the valve by a clamp-plate J, secured by screws K, the clamp-plate being of less diameter than the opening in the valveseat, so as not to interfere with the seating of the packing, as clearly shown in Fig. l.
  • L indicates a stop-pin toprevent the valve from rising too high when opened by the passage of the water.
  • a check-Valve the combination with the case or bodyhavinga cubical chamber and a valve-seat in one side thereof, of hooks arranged above the valve-seat, the valve proper provided with slots to pass over said hooks, whereby the valve is suspended thereon, and a stop-pin to prevent the valve from rising too high when open, substantially as described.
  • valve-plate rectangular in outline, having a flat rear face, a convex front face, and a series of suspending

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Description

No. 629,449. Patented July 25, 899. J. J. LOCKE.
CHECK VALVE.
m: upims PETERS co. Pno'mLrn-u, WASHINGTON. n. l:v
UNITED STATES PATENT QE ICE.
JAMES JOHN LOCKE, OF'OI-IIOKALAH, ARKANSAS, ASSIGNOR OF ONE-HALF TO T. E. \VILSON, OF DARDANELLE, ARKANSAS.
CHECK-VALVE.
SPECIFICATION forming part of Letters Patent No. 629,449, dated July 25, 1899.
Application filed April 17, 1899. SerialNo. 713,350. (No model.)
To (bi/Z whom it may concern:
Be it known that I, JAMES JOHN LOGKE, a citizen of the United States,residin g at Chickalah, in the county of Yell and State'of Arkansas, have invented a certain new and useful Check-Valve, of which the following is a specification.
My invention relates generally to checkvalves, and more particularly to that class of Io check-valves adaptable for use in the feedwater pipes of steam-boilers, the object of the invention being to provide a strong, neat, cheap, reliable, and durable, valve the nse'of which will avoid many of the accidents and r difficulties encountered in the use of ordinary check-valves.
IVith this object in view my invention consists in the improved construction, arrangement, and combination of parts hereinafter fully described, and afterward specifically pointed out in the claims.
In order to enable others skilled in the art to which my invention most nearly appertains to make and use the same, I will now proceed to describe its construction and operation,
having reference to the accompanying drawings, forming part hereof, in which Figure l is a vertical sectional view on a plane cutting longitudinally through a checkvalve constructed in accordance with my invention, the valve being closed. Fig. 2 is a transverse vertical section taken on the plane indicated by the dotted line 2 2 of Fig. 1, looking in the direction of the arrow. Fig. 3 isa 5 similar view to Fig. 1, the valve being open and the ends of the case broken away. Fig. 4 is a detail perspective view of the valve removed from the ease.
Like letters of reference mark the same 0 parts wherever they occur in the various figures of the drawings.
Referring to the drawings by letters, A indicates the casing or frame of the valve,which has cylindrical threaded ends B B to receive pipes, a cubical central chamber in which the valve works and in one side of which is the valve-seat O, and avertieal extension D of the central box or chamber, through which the valve can be inserted or removed, said extension being closed by the screw-cap E.
F indicates the valve, which is made, preferably, of brass or analogous metal, is rectangular in outline, has a fiat rear face and a convex front face, and is provided with a series of slots G near its upper edge to engage over hooks II, and thereby pivotally support the valve with a normal tendency to hang in its closed position.
On the rear flat face of the valve F is a square sheet I of asbestos packing, in position to lie between the valve and its seat when the valve is closed, such packing being held in place on the valve by a clamp-plate J, secured by screws K, the clamp-plate being of less diameter than the opening in the valveseat, so as not to interfere with the seating of the packing, as clearly shown in Fig. l.
L indicates a stop-pin toprevent the valve from rising too high when opened by the passage of the water.
The operation of my invention will be readily understood from the foregoing description.' Water will freely pass through the valve from the outside, (from the left as indicated in Figs. land 3,) tipping up the valve to the position shown in Fig. 3 if the flow is sufficiently strong; but any back flow or pressure will at once close the valve down to position of Fig. 1, and the heavier the back pressure the tighter the valve will be closed.
The advantages attending the use of my in= vention are numerous. The water has a straight passage, without crooks or turns, to increase friction, and has no dead-weight to raise, as in a lift-valve. The asbestos packing will not stick and cause trouble in the water- 'the spirit of the invention.
Having thus fully described my invention, too
what I claim as new, and desire to secure by Letters Patent of the United States, is-
1. In a check-Valve, the combination with the case or bodyhavinga cubical chamber and a valve-seat in one side thereof, of hooks arranged above the valve-seat, the valve proper provided with slots to pass over said hooks, whereby the valve is suspended thereon, and a stop-pin to prevent the valve from rising too high when open, substantially as described.
2. The valve-plate herein described, rectangular in outline, having a flat rear face, a convex front face, and a series of suspending
US1899713350 1899-04-17 1899-04-17 Check-valve. Expired - Lifetime US629449A (en)

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US1899713350 US629449A (en) 1899-04-17 1899-04-17 Check-valve.

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US1899713350 US629449A (en) 1899-04-17 1899-04-17 Check-valve.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947321A (en) * 1956-04-16 1960-08-02 Kovalcik Frank Trap for catch basins
US3047010A (en) * 1958-06-09 1962-07-31 Bendix Corp Air pressure regulator
US3173439A (en) * 1961-06-26 1965-03-16 Donald G Griswold Backflow prevention device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947321A (en) * 1956-04-16 1960-08-02 Kovalcik Frank Trap for catch basins
US3047010A (en) * 1958-06-09 1962-07-31 Bendix Corp Air pressure regulator
US3173439A (en) * 1961-06-26 1965-03-16 Donald G Griswold Backflow prevention device

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