US1113282A - Emergency check-valve. - Google Patents

Emergency check-valve. Download PDF

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Publication number
US1113282A
US1113282A US1912729525A US1113282A US 1113282 A US1113282 A US 1113282A US 1912729525 A US1912729525 A US 1912729525A US 1113282 A US1113282 A US 1113282A
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US
United States
Prior art keywords
valve
casing
arm
shaft
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
Application number
Inventor
Edward V Anderson
Original Assignee
Charles E Golden
Edward V Anderson
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 Charles E Golden, Edward V Anderson filed Critical Charles E Golden
Priority to US1912729525 priority Critical patent/US1113282A/en
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Publication of US1113282A publication Critical patent/US1113282A/en
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Expired - Lifetime legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00Check valves
    • F16K15/02Check valves with guided rigid valve members
    • F16K15/025Check valves with guided rigid valve members the valve being loaded by a helicoidal spring
    • F16K15/026Check valves with guided rigid valve members the valve being loaded by a helicoidal spring the valve member being a movable body around which the medium flows when the valve is open
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/785With retarder or dashpot
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7854In couplings for coaxial conduits, e.g., drill pipe check valves
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7866Plural seating
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7869Biased open
    • Y10T137/7875Pivoted valves
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00Fluid handling
    • Y10T137/7722Line condition change responsive valves
    • Y10T137/7837Direct response valves [i.e., check valve type]
    • Y10T137/7898Pivoted valves
    • Y10T137/7901Valve head movably connected for accommodation to seat

Description

E. V. ANDERSON. EMERGENCY CHECK VALVE. APPLICATION FILED Nov.4, 1912.

Patented Oct. 13, 1914.

E lllllulm 'w 1 i. ab? 7 .|IIIIII IIIIIII l a l Atf'y,

C? 1 W VMWMINVENTOH wn'NEssEs r UNITED sTATEs PATENT oEEIcE.

EDWARD v. ANDERSON, or MoNEssoN, PENNSYLVANIA, AssIeNoR orv ONE-HALF To CHARLES E. GOLDEN, 0F GRAFTON, PENNSYLVANIA.

. EMERGENoY CHECK-VALVE.

Speccation of Letters Patent.

Application filed November 4, 1912. Serial N o. 729,525.

To all whom t may concern.'

.Be it known that I, EDWARD V. ANDERSON, a citizen of the United States, residing at Monesson, Pennsylvania, have invented cer-- tain new and useful -Improvements in Emergency Check-Valves, of which the following is a specifcatio My invention relates to valves for controlling iiuids and its primary object is to provide an automatic valve which will close when the difference in pressure `on the two.

a vertical longitudinal section through a casing supplied with my invention, andI Fig. 2 is a vertical section at right angles to that of Fig, 1.l

Preferably 'by means. of spring toggle levers I arrange the valve to occupy an open position until a certain difference of pressure on the two sides of the valve is attained, whereupon the Valve is closed without water hammer and remains closed; meantime the sensitiveness of the valve is adjustable and the valve may be taken out without removing the `valve casing from the line. Thus in the accompanying drawing I represent a valve casing with the inlet A and dutlet B and having two valve seats a and b. An

K `pwardly extending .head C carries a sha-ft provided with a packing, and having a shank of angular section upon which fits an arm E .carrying a swinging valve F, which normally, in open position, stands as shown in Fig. l in a vertical position between the two valve seats.l On the outside of the shaft D, I provide a double lever arm whose up- Ward extension G carries a link g attached to a piston I-I in a-pivoted dashpot I mounted on the cap C of the' valve casing. The lower extension K of the lever on the shaft D carries a pin L which engages a slotted head m of a collapsible cylinder comprising theparts M and N, the part N being piv oted on pin O on an arm attached to the valve casing.4 The inside cylinder M carries a coil spring P resting on a follower Q, which is adjustable in position .bymeans of a bearing pin R passing through the lower end of the outside cylinder N. 1 The follower Q'has lugs working in slots in the cylinder N in order to prevent its turning. The main valve F is preferably pinned on to the arm E and "I provide a spring f to' take up any play of this pin.` The lvalve is of V 'shape as shown in lorder to neatly fit either one of the valve seats.

In the fiow of fluid in the direction of the arrow in Fig. l, the valve F willnormally stand in a` middle position without-seriously obstructing the passage, vthe pressure on the lefthand face being met by the resistance of the pin L of the arm Kto downward movement against spring P, because the distance from the center of shaft Dto the center of shaft O is less than the sum of the effected lengths of arm K and the lever formed by the cylindersM and N inexpanded condi- .tion. By adjusting the pin R, the force necessary to overcome thevspring` toggle links .may bev adjusted. If a break in the line to the right of Fig, 1 should occur, reducing very much. the pressure .on the outlet side of the valve, therushing fluid carries the valve over against the seat o, depressing the spring Pthereby and carrying the pin L to the other side ofthe vertical-line between the two pivots of the toggle links, so that the valve will remain closed on seat b. In case of a sudden reduction vof pressure on the left side of the valve in Fig. l, the valve of course may close against the seat a, the

pin L rising out of the slotted head m, asl

indicated in dotted lines in. Fig. 1. Meantime, any movement of the valve F ischecked so as to prevent hammer bv means of the dashpot I-I, I;

It will be observed that the valve cannoty move suddenlyA in either direction; that the limiting pressure at which it moves 1s adjustable; and that the parts are outside the -valve casing for easy inspection and repair y and the valve itself may be taken out without removing the casing from the line.

The device is 'very simple and effective and its advantages' will be readily apparent to those familiar with the .art.' y

Having thus described my invention and illustrated its use, what I` claim is 1. In valve mechanism, the' combination of a casing havingftwopfvalvefseats, @aL- valve ona pivot shaft. inthecasingvand mounted to swing' against j eitherseat, aflever-r arm Viixedhon the pivot vshaft of the valve, a colratented oet. 13,1914.

lapsible elastic member pivoted to the casing and pivoted to said arm, the said member and arm forming a pair of toggle links adapted to hold the valve normally in position off both valve seats.

2. In valve mechanisrm the combination of a valve casing having two valve seats, a shaft in the casing, a swinging valve carried rigidly on the shaft in position to swing against either of said seats, an arm on said shaft outside. the casing, a plunger pivoted to said arm, a dashpot pivoted on the casing and coperating with said plunger, a second arm on said shaft, a cylinder pivoted to said arm, a cooperating telescoping cylinder pivoted on the valve casing, and al1 adjustable spring therein holding said telescoping cylinders in expanded condition so'that the cylinders and arm form adjustable spring toggle levers to hold the 'valve in normally open position or to hold it closed, substantially as described.

3. A double check-valve comprising a 'casing with two seats, a piVo'ted Valve xed on a rock shaft, spring .toggle levers attached to said shaft and adapted to permit the valve to close against the seat on the inow side of the casing, or to hold the valve against the seat onthe outflow side when the difference in pressure between two sides surpasses a given and adjustable value, substantially as described.

In testimony whereof I have hereunto signed myname in the-presence of the two subscribed witnesses.

EDWARD V. ANDERsoN.

Witnesses:

FREDK. STAUB, W. A. HICKMAN.

US1912729525 1912-11-04 1912-11-04 Emergency check-valve. Expired - Lifetime US1113282A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2760512A (en) * 1951-08-01 1956-08-28 Chicago Pump Co By-pass valve
US2882921A (en) * 1954-06-16 1959-04-21 Claude H Webber Shutoff valve for fluid pressure mains
US3132666A (en) * 1961-12-15 1964-05-12 Elnathan K Nelson Anti-blast and anti-suction air valve for atomic bomb shelter
US3191613A (en) * 1962-07-26 1965-06-29 Texas Pipe Line Company Two-way check valve combination
DE2303715A1 (en) * 1973-01-26 1974-08-01 Regel Und Messtechnik Gmbh Reg Safety shutoff valve
US4256283A (en) * 1979-04-06 1981-03-17 Reneau Bobby J Pivotal ball check valve
US4595032A (en) * 1983-02-25 1986-06-17 John Valves Pty., Ltd. Valve closing device
US20060158029A1 (en) * 2003-08-13 2006-07-20 Shaw Edward G Valve assembly

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2760512A (en) * 1951-08-01 1956-08-28 Chicago Pump Co By-pass valve
US2882921A (en) * 1954-06-16 1959-04-21 Claude H Webber Shutoff valve for fluid pressure mains
US3132666A (en) * 1961-12-15 1964-05-12 Elnathan K Nelson Anti-blast and anti-suction air valve for atomic bomb shelter
US3191613A (en) * 1962-07-26 1965-06-29 Texas Pipe Line Company Two-way check valve combination
DE2303715A1 (en) * 1973-01-26 1974-08-01 Regel Und Messtechnik Gmbh Reg Safety shutoff valve
US4256283A (en) * 1979-04-06 1981-03-17 Reneau Bobby J Pivotal ball check valve
US4595032A (en) * 1983-02-25 1986-06-17 John Valves Pty., Ltd. Valve closing device
US20060158029A1 (en) * 2003-08-13 2006-07-20 Shaw Edward G Valve assembly

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