US270573A - Check-valve - Google Patents

Check-valve Download PDF

Info

Publication number
US270573A
US270573A US270573DA US270573A US 270573 A US270573 A US 270573A US 270573D A US270573D A US 270573DA US 270573 A US270573 A US 270573A
Authority
US
United States
Prior art keywords
valve
piston
cylinder
casing
seat
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
Application number
Publication date
Application granted granted Critical
Publication of US270573A publication Critical patent/US270573A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0433—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with vibration preventing means
    • 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
    • F16K15/14—Check valves with flexible valve members
    • F16K15/16—Check valves with flexible valve members with tongue-shaped laminae
    • 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
    • Y10T137/7852—End of valve moves inside dashpot chamber
    • Y10T137/7853—Enlarged piston on end of valve stem
    • 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]
    • Y10T137/7879—Resilient material valve
    • Y10T137/7888—With valve member flexing about securement
    • Y10T137/7891—Flap or reed
    • 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

Definitions

  • the object of my invention is to preventthe valve from hammeringits seat; and. it consists partly in the combination, with the valve and its seat, of a piston connected with the valvestem, and a cylinder therefor connected with the interior of the valve-casing.
  • the upper end of the cylinder referred to opens directly into the valve-casing, and the lower end thereof is closed.
  • the piston on the valve-stem fits loosely in the cylinder, and is provided with a small passagecontrolled by a downwardlyopening valve, which permits the water of condensation collected in the lower part of the valve-case to pass down into the cylinder below the piston when the valve is raised from its seat, and the said water in the cylinder retards themovement of the valve as it returns to its seat, preventing concussion,the water below the piston having its only exit between the cylinder and piston.
  • Fig. 3 a diagram illustrating, in plan view, the relation of the valve to the exhaust-passages of the engine.
  • the casing A having inlet and outlet openings 2 3, and a partition, a, between them provided with the valve port and seat I), may be of any suitable or usual construction, it being shown in this instance as provided with a removable cover or bonnet, c; for the insertion of the valve (1, the upper portion of the stem 6 of which travels in a guide,f, attached to the said bonnet c.
  • the lower portion of the casing" A is provided with a cylinder or daslrpot, g, shown as made in a separate piece, having a flange, h, for attaching it to the said casing, which has a suitable opening to receive it, the said cylinder being closed at its lower end and opening directly into the casing A at its upper end.
  • valve-stem has connected therewith a piston or plunger, i, loosely fitted in the cylinder g, and provided with a small passage, k, controlled by a valve, m, shown as consisting of a flexible strip of metal, opening downward, to permit a free passage of fluid through the opening k from the interior of the casing A into the cylinder 9 below the piston, but preventing the flow thereof in the opposite direction.
  • a valve, m shown as consisting of a flexible strip of metal, opening downward, to permit a free passage of fluid through the opening k from the interior of the casing A into the cylinder 9 below the piston, but preventing the flow thereof in the opposite direction.
  • the cylinder 9 may be cast-in one piece with the casing A.
  • valve In operation the valve is intended to be placed, as shown in Fig. 3, in the outboard exhaust-pipe n, or pipe leading from the exhaust-pipe 0, that connects the engine and condenser, into the atmosphere, so that the pressure of the atmosphere will act on the valve 01 to seat it, except when the exhaust-pressure acting'on the under side of the valve d is greater.
  • the lower portion of thecasing A will become filled with water of condensation, and when the pressure of the exhaust exceeds that of theatmosphere it will raise the valve cl.
  • the pressureabove the piston i will open the valve on and cause the said water to flow through the passage k and fill the cylinder 9 below the said piston i.
  • valve-seat By locating the valve-seat, as shown,b etween the valve and piston, and having the valve seat downwardly upon itsupper surface, the
  • valves have been controlled in their seating movement by a connected piston operated in a cylinder connected with the valve-casing, and do not broadly claim such construction.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Description

(No Model.)
G. F. BLAKE.
UHF-GK VALVE.
Patented Jan.16,'1883.
Wi'fiwsses.
WfH ML/M Uwrre TATES GEORGE F. BLAKE, OF BELMONT, MASSACHUSETTS.
CH E'CKQ-AVALVE.
SPECIFICATION forming part of Letters Patent No 270,573, dated January 16, 1883.
Application filed September 26, 1882. (No model.)
To all whom it may concern:
3e it known that I, GEORGE F. BLAKE, of Belmont, county of Middlesex, State of Massachusetts, have invented an Improvement in Check-Valves, of which the following descripfail to maintain the pressure in the exhaustpipe below that of the atmosphere, or when it is desired to run the engine non-condensing.
The object of my invention is to preventthe valve from hammeringits seat; and. it consists partly in the combination, with the valve and its seat, of a piston connected with the valvestem, and a cylinder therefor connected with the interior of the valve-casing. The upper end of the cylinder referred to opens directly into the valve-casing, and the lower end thereof is closed. The piston on the valve-stem fits loosely in the cylinder, and is provided with a small passagecontrolled by a downwardlyopening valve, which permits the water of condensation collected in the lower part of the valve-case to pass down into the cylinder below the piston when the valve is raised from its seat, and the said water in the cylinder retards themovement of the valve as it returns to its seat, preventing concussion,the water below the piston having its only exit between the cylinder and piston.
Figure lis avertical longitudinal section of a valve embodying this invention; Fig. 2, an
under side view ofthe piston at the end of the valve-stem and Fig. 3, a diagram illustrating, in plan view, the relation of the valve to the exhaust-passages of the engine.
The casing A, having inlet and outlet openings 2 3, and a partition, a, between them provided with the valve port and seat I), may be of any suitable or usual construction, it being shown in this instance as provided with a removable cover or bonnet, c; for the insertion of the valve (1, the upper portion of the stem 6 of which travels in a guide,f, attached to the said bonnet c.
The lower portion of the casing" A is provided with a cylinder or daslrpot, g, shown as made in a separate piece, having a flange, h, for attaching it to the said casing, which has a suitable opening to receive it, the said cylinder being closed at its lower end and opening directly into the casing A at its upper end. The lower end of the valve-stem has connected therewith a piston or plunger, i, loosely fitted in the cylinder g, and provided with a small passage, k, controlled by a valve, m, shown as consisting of a flexible strip of metal, opening downward, to permit a free passage of fluid through the opening k from the interior of the casing A into the cylinder 9 below the piston, but preventing the flow thereof in the opposite direction. The cylinder 9 may be cast-in one piece with the casing A.
In operation the valve is intended to be placed, as shown in Fig. 3, in the outboard exhaust-pipe n, or pipe leading from the exhaust-pipe 0, that connects the engine and condenser, into the atmosphere, so that the pressure of the atmosphere will act on the valve 01 to seat it, except when the exhaust-pressure acting'on the under side of the valve d is greater. The lower portion of thecasing A will become filled with water of condensation, and when the pressure of the exhaust exceeds that of theatmosphere it will raise the valve cl. Atthe same time the pressureabove the piston i will open the valve on and cause the said water to flow through the passage k and fill the cylinder 9 below the said piston i. If the pressure of the exhaust is suddenly diminished, the "alve d is closed by its own weight and the pressure of the atmosphere; but the downward movement is checked by water in the cylinder 9 beneath the piston c, which permits the said movement to take place only as fast as the water can escape from the cylinder around the piston, the water thus retarding the downward movement and preventing concaused hyits being hammered by the valvecan be prevented.
By locating the valve-seat, as shown,b etween the valve and piston, and having the valve seat downwardly upon itsupper surface, the
movement of the valve in seating is positively resisted by the fluid entrapped beneath the piston, the said movement; taking place only as fast as the liquid can escape around the piston.
I am aware that previous to this invention valves have been controlled in their seating movement by a connected piston operated in a cylinder connected with the valve-casing, and do not broadly claim such construction.
I claim- 1. The "alve-casing and valve-seat therein,
and the valve seating on the upper surface of the said valve-seat, and the piston connected with the said valve, combined with the cylinder or dash-pot, co-operating with the said piston and openinginto the said valve-casing,
US270573D Check-valve Expired - Lifetime US270573A (en)

Publications (1)

Publication Number Publication Date
US270573A true US270573A (en) 1883-01-16

Family

ID=2339813

Family Applications (1)

Application Number Title Priority Date Filing Date
US270573D Expired - Lifetime US270573A (en) Check-valve

Country Status (1)

Country Link
US (1) US270573A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661766A (en) * 1947-03-12 1953-12-08 Denison Eng Co Hydraulic apparatus
US2884951A (en) * 1956-12-24 1959-05-05 Danfoss Ved Ingenior Mads Clau Pilot-controlled regulating valve
WO2015120183A1 (en) 2014-02-05 2015-08-13 Innovative Inventions, LLC Vehicle lifting and parallel parking aid

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2661766A (en) * 1947-03-12 1953-12-08 Denison Eng Co Hydraulic apparatus
US2884951A (en) * 1956-12-24 1959-05-05 Danfoss Ved Ingenior Mads Clau Pilot-controlled regulating valve
WO2015120183A1 (en) 2014-02-05 2015-08-13 Innovative Inventions, LLC Vehicle lifting and parallel parking aid
US9758133B2 (en) 2014-02-05 2017-09-12 Innovative Inventions, LLC Vehicle lifting and parallel parking aid

Similar Documents

Publication Publication Date Title
US270573A (en) Check-valve
US1209753A (en) Flushing-valve.
US709262A (en) One-way valve.
US741828A (en) Cylinder relief-valve.
US1722155A (en) Flush valve
US417329A (en) Relief-valve for steam-engin es
US572211A (en) Cylinder-cock
US673250A (en) Compound steam-trap.
US882740A (en) Fluid-controlled flushing-valve.
US598386A (en) Air-valve for water pipe-lines
US548977A (en) Valve
US811420A (en) Steam-trap.
US1890591A (en) Steam trap
US197037A (en) Improvement in water-closet valves
US333140A (en) William j
US375748A (en) Water-service apparatus
US193800A (en) Improvement in valves for water-closets
US423097A (en) Valve
US147949A (en) Improvement in water and gas cut-offs
US1000169A (en) Water-elevating apparatus.
US253984A (en) Steam-trap
US406615A (en) Hydraulic governor for steam-pumps
US909510A (en) Valve.
US288591A (en) John e
US408176A (en) Steam-trap