US1097095A - Safety-valve. - Google Patents

Safety-valve. Download PDF

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Publication number
US1097095A
US1097095A US1913743578A US1097095A US 1097095 A US1097095 A US 1097095A US 1913743578 A US1913743578 A US 1913743578A US 1097095 A US1097095 A US 1097095A
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US
United States
Prior art keywords
valve
plug
gas
safety
pin
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
Lawrence W Henry
Original Assignee
Lawrence W Henry
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.)
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Publication date
Application filed by Lawrence W Henry filed Critical Lawrence W Henry
Priority to US1913743578 priority Critical patent/US1097095A/en
Application granted granted Critical
Publication of US1097095A publication Critical patent/US1097095A/en
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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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief 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
    • Y10T137/7723—Safety cut-off requiring reset
    • Y10T137/7726—Responsive to change in rate of flow
    • 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
    • Y10T137/7723—Safety cut-off requiring reset
    • Y10T137/7731—Fluid counter-biased or unseated valve
    • Y10T137/7732—With mechanical stop against reopening
    • 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
    • Y10T137/7922—Spring biased
    • Y10T137/7924—Spring under tension

Description

L. W. HENRY.
SAFETY VALVE. APPLICATION FILED-JAN. 22, 1913.
LAWRENCE W. HENRY, OIE BUFFALO, NEW YORK.
SAFETY-VALVE.
Specification of Letters Patent.
Patented May 19, 1914.
Application filed January 22, 1913. Serial No. 743,578.
To all whom it may concern:
Be it known that I, LAWRENCE W. HENRY, a citizen of the United States, residing at Buffalo, in the county of Erie, State of New York, have invented certain new and useful Improvements in Safety-Valves; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.
The present invention is directed to improvements in safety valves for gas burners, and has for its object to provide a device of this character so constructed that should the pressure of gas in the main decrease the valve will operate to cut oif the flow of gas.
A further object of the invent-ion is to so construct a valve of this character that after the valve is operated to. cut off the supply the same is held positively seated, and can be only released manually.
With these and other objects in view, this invention resides in the novel features of construction, formation, combinations and arrangements of parts to be hereinafter more fully described, claimed and illustrated in the accompanying drawing, in which Figure 1 is a side elevation of the device. Fig. 2 is a longitudinal sectional View through the same. Fig. 3 is a sectional view on line 3-3 of Fig. 1. Fig. 4 is a similar view on line 4 -4: of Fig. 1.
Referring to the drawing, the numeral 1 designates a casing, said casing having connected to one end an inlet pipe 2, and to the other end an outlet pipe 3 which supports the usual gas burner and is provided with a cutoif valve 1 which is of the usual construction.
The casing 1 is formed with a valve seat 5 upon which is adapted to seat the tapered valve plug 6, said plug having the rounded end 7 which is provided with a shoulder 8. Formed integral with the rounded end of the plug 6 is a stem 9, said stem being rectangular in cross section and is adapted to slide in the guide strip 10 which is supported vertically within the outlet pipe 3. Surrounding the stem 9 is a coil spring 11, the tension of which is regulated so that the usual gas pressure will hold the plug 6 from engagement with the valve seat 5, but should the pressure be reduced the spring will force the plug into engagement with the seat.
Connected to the under surface of the easing 1 is a tubular extension 12 in which operates the pin 13. Mounted in the extension 12 is a coil spring 14:, the upper end of which is connected to the pin 13 so as to hold one end thereof projected into the casing 1, the lower end of said spring being supported upon the cap 15 which is carried by the extension 12.
The gas pressure normally holds the valve stem unseated, at which time the inner end of the pin engages the plug, but should the gas fall below the predetermined pressure the spring 11 will force the plug into engagement with the seat 5, during which operation the inner end of the pin will pass over the rounded end of the plug and into engagement with the shoulder 8 and will be held thus by the spring 14. Thus it will be seen that should the gas again reach the normal pressure the plug will be held positively seated, thereby preventing gas from entering the room through the burner. It is obvious that when it is desired to again light the burner it is only necessary to remove the pin 13 from engagement with the shoulder 8, after which the gas will unseat the plug 6.
What is claimed is:-
An automatic cut-oif comprising a valve casing, an egg-shaped spring pressed valve in said casing normally held open by gas pressure, there being a notch in one side of said valve, and a spring pressed pin bearing against the rounded exterior of said valve and being constantly kept under slight motion by yielding of the valve under varying gas pressure, and being adapted to seat in said notch upon closing of said valve whereby to positively hold said valve seated until said pin is manually released.
In testimony whereof, I afiix my signature, in the presence of two witnesses.
LAWRENCE W. HENRY.
Witnesses:
WILLIAM L. HENRY, ALBERT A. WEBER.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.
US1913743578 1913-01-22 1913-01-22 Safety-valve. Expired - Lifetime US1097095A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1913743578 US1097095A (en) 1913-01-22 1913-01-22 Safety-valve.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1913743578 US1097095A (en) 1913-01-22 1913-01-22 Safety-valve.

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US1097095A true US1097095A (en) 1914-05-19

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US1913743578 Expired - Lifetime US1097095A (en) 1913-01-22 1913-01-22 Safety-valve.

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2890712A (en) * 1953-10-08 1959-06-16 Frederick D Bowen Safety gas valves
US4044790A (en) * 1976-05-27 1977-08-30 Mcdonnell Douglas Corporation Self re-arming valve
DE3203859A1 (en) * 1982-02-03 1983-08-04 Jürgen 1000 Berlin Binder Safety system for hydraulic installations
DE102005034866A1 (en) * 2005-07-26 2007-02-08 Paley, Anatoly, Prof. dRF Flexible gas valve for gas equipment, has spring, where valve is automatically fixed to housing of equipment after closing valve with safety catch pin, with lack of gas pressure, and opened under normal pressure
US20150219234A1 (en) * 2014-01-31 2015-08-06 GM Global Technology Operations LLC Valve unit and motor vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2890712A (en) * 1953-10-08 1959-06-16 Frederick D Bowen Safety gas valves
US4044790A (en) * 1976-05-27 1977-08-30 Mcdonnell Douglas Corporation Self re-arming valve
DE3203859A1 (en) * 1982-02-03 1983-08-04 Jürgen 1000 Berlin Binder Safety system for hydraulic installations
DE102005034866A1 (en) * 2005-07-26 2007-02-08 Paley, Anatoly, Prof. dRF Flexible gas valve for gas equipment, has spring, where valve is automatically fixed to housing of equipment after closing valve with safety catch pin, with lack of gas pressure, and opened under normal pressure
US20150219234A1 (en) * 2014-01-31 2015-08-06 GM Global Technology Operations LLC Valve unit and motor vehicle
US9752697B2 (en) * 2014-01-31 2017-09-05 GM Global Technology Operations LLC Valve unit and motor vehicle

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