US688830A - Automatic valve. - Google Patents

Automatic valve. Download PDF

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Publication number
US688830A
US688830A US1901071878A US688830A US 688830 A US688830 A US 688830A US 1901071878 A US1901071878 A US 1901071878A US 688830 A US688830 A US 688830A
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US
United States
Prior art keywords
valve
steam
automatic valve
boilers
piston
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
Inventor
William J Collins
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.)
New Bedford Boiler & Machine Co
Original Assignee
New Bedford Boiler & Machine Co
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 New Bedford Boiler & Machine Co filed Critical New Bedford Boiler & Machine Co
Priority to US1901071878 priority Critical patent/US688830A/en
Application granted granted Critical
Publication of US688830A publication Critical patent/US688830A/en
Anticipated expiration legal-status Critical
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
    • 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
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
    • 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
    • Y10T137/7852—End of valve moves inside dashpot chamber

Definitions

  • My invention relates particularly to valves used in the pipes leading from the separate boilers of a battery of boilers to the steammain; and its object is to provide a valve for such use which when the steam-pressure in any one of said battery of boilers falls below that of the others, because of an accident to said boiler or from any other cause, will automaticall y close,and that when the steam-pressure in said boiler rises to the same degree of the other boilers will automatically open.
  • a further object of my invention is to provide means whereby the valve in its automatic action shall open and close gradually, so that the valve or its seat shall not be inj ured thereby.
  • my invention consists in a valve having its upper surface provided with a piston, and a cylinder attached to the valve-stem adapted to receive said valve-piston and provided with a small aperture in its bottom, whereby the valve is caused to move slowly to or from its seat.
  • the numeral 1 represents the valve body or shell.
  • valve 2 is the valve, having the guide 3 and its upper surface provided with the valve-piston l.
  • valve-stem 5 is a cylinder attached to and movable with the valve-stem, having the small aperture 6 in its bottom and adapted to receive the valvepiston 4.
  • valves are situated in the steam-pipe leading from each one of a battery of boilers to the steam-main:
  • the valve in the steam-pipe leading from that boiler is closed by the back pressure of the steam in the main on the upper surface of the valve and it is caused toclose slowly, because the vacuum formed in the cylinder 5 by the partial closing of the valve can only be filled slowly through the small orifice 6.
  • the valve opens slowly because the steam or air which fills the cylinder when the valve is closed can only escape slowly through the small aperture 6.
  • An automatic valve comprising a valvebody having a valve-seat; a valve operating in conjunction with said seat, having its upper surface provided with a piston; a cylinder attached to the valve-stem adapted to receive said valve-piston, and provided with a small aperture in its bottom, substantially as shown, and for the purpose described.

Description

Patented Dec. I7, I901.
(No Model.)
JM JM WTIRQ UNITED STATES ATENT FFICE.
WILLIAM J. COLLINS, OF NEW BEDFORD, MASSACHUSETTS, ASSIGNOR TO NE W BEDFORD BOILER & MACHINE 00., OF NEW BEDFORD, MASSACHUSETTS.
AUTOMATIC VALVE.
SPECIFICATION forming part of Letters Patent No. 688,830, dated December 17, 1901. Application filed AugustlZ, 1901. Serial No. 71,878- (No model.)
To all whom it may concern:
Be it known that I, WILLIAM J. COLLINS, a citizen of the United States of America, residing at New Bedford, in the county of Bristol and State of Massachusetts, have invented certain new and useful Improvements in Automatic Valves, of which the following is a specification.
My invention relates particularly to valves used in the pipes leading from the separate boilers of a battery of boilers to the steammain; and its object is to provide a valve for such use which when the steam-pressure in any one of said battery of boilers falls below that of the others, because of an accident to said boiler or from any other cause, will automaticall y close,and that when the steam-pressure in said boiler rises to the same degree of the other boilers will automatically open.
A further object of my invention is to provide means whereby the valve in its automatic action shall open and close gradually, so that the valve or its seat shall not be inj ured thereby.
To this end my invention consists in a valve having its upper surface provided with a piston, and a cylinder attached to the valve-stem adapted to receive said valve-piston and provided with a small aperture in its bottom, whereby the valve is caused to move slowly to or from its seat.
The accompanying drawing,which is a view of my improved automatic valve in longitudinal vertical section, illustrates my invention.
The numeral 1 represents the valve body or shell.
2 is the valve, having the guide 3 and its upper surface provided with the valve-piston l.
5 is a cylinder attached to and movable with the valve-stem, having the small aperture 6 in its bottom and adapted to receive the valvepiston 4.
The operation of the device is as follows, it being observed that one of the above-described valves is situated in the steam-pipe leading from each one of a battery of boilers to the steam-main: When the steam-pressure in any one of a battery of boilers falls below the pressure in the steam-main, the valve in the steam-pipe leading from that boiler is closed by the back pressure of the steam in the main on the upper surface of the valve and it is caused toclose slowly, because the vacuum formed in the cylinder 5 by the partial closing of the valve can only be filled slowly through the small orifice 6. The valve opens slowly because the steam or air which fills the cylinder when the valve is closed can only escape slowly through the small aperture 6.
Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-- An automatic valve, comprising a valvebody having a valve-seat; a valve operating in conjunction with said seat, having its upper surface provided with a piston; a cylinder attached to the valve-stem adapted to receive said valve-piston, and provided with a small aperture in its bottom, substantially as shown, and for the purpose described.
Signed by me at New Bedford, Massachusetts, this 24th day of April, 1901.
WILLIAM J. COLLINS.
Witnesses:
EDWARD P. HASKELL, HENRY W. MASON.
US1901071878 1901-08-12 1901-08-12 Automatic valve. Expired - Lifetime US688830A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1901071878 US688830A (en) 1901-08-12 1901-08-12 Automatic valve.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1901071878 US688830A (en) 1901-08-12 1901-08-12 Automatic valve.

Publications (1)

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US688830A true US688830A (en) 1901-12-17

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US1901071878 Expired - Lifetime US688830A (en) 1901-08-12 1901-08-12 Automatic valve.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6443182B1 (en) * 2000-11-08 2002-09-03 Ingersoll-Rand Company Non-slamming check valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6443182B1 (en) * 2000-11-08 2002-09-03 Ingersoll-Rand Company Non-slamming check valve

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