US310459A - Ttpon-tbent - Google Patents

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US310459A
US310459A US310459DA US310459A US 310459 A US310459 A US 310459A US 310459D A US310459D A US 310459DA US 310459 A US310459 A US 310459A
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United States
Prior art keywords
valve
spring
seat
annular
opening
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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
    • F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
    • F16K15/036—Dual valve members with hinges crossing the flow line substantially diametrical
    • F16K15/038—Dual valve members with hinges crossing the flow line substantially diametrical having a common hinge
    • 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
    • F16K15/066—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring with a plurality of valve members
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/18—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on either side
    • 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]
    • Y10T137/7838—Plural
    • Y10T137/7839—Dividing and recombining in a single flow path
    • 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]
    • Y10T137/7838—Plural
    • Y10T137/7841—One valve carries head and seat for second valve
    • 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
    • Y10T137/8158—With indicator, register, recorder, alarm or inspection means
    • Y10T137/8326—Fluid pressure responsive indicator, recorder or alarm

Definitions

  • This invention relates to improvements in safety-valves; and it consists in the combination of devices hereinafter described and claimed.
  • Figure 1 is a side elevation of the valve detached from its seat.
  • Fig. 2 is a longitudinal section, and
  • Fig. Sis a plan of the underside of a complete safety'valve made in accordance with our invention.
  • the inner central valve, B is provided with a spindle, G, projecting through the annular valve A, and furnished with a loose collar, D, and an adjusting-nut, d, for regulating the pressure of a spiral spring, S, which bears with one extremity against the collar D and with its other end against the annular valve A, so tending to hold the in ternal valve, B, up to its seat 6 on the annular valve A with a force equal to that which is required to hold the whole compound valve down on its seat a against the pressure of the steam in the boiler.
  • the compound valve so formed is weighted down to its seat a by a le ver, L, with a weight or spring, ⁇ V, of ordinary construction, which presses on the head of the spindle G of the inner central valve, B.
  • This pressure is transmitted through the spiral spring S to the annular valve A, and so long as it does not exceed that of the spring S the compound valve A and B will act as an ordinary safety-valve. Should, however, the pressure applied by the lever L exceed that of the spring S, the annular valve A will 'be held down to its seat a, the spring S deflected,
  • the dome of a whistle, H may be attached to the valve-spindle 0, having its edge over the central hole of the annular valve A, so that it may be sounded by the escape of steam "from the valve B, and an audible warning given of the overweighting.
  • the drawings show the valve to be weighted by means of the lever L and a weight or spring, W, it is obvious that either of the latter can be applied direct to the valve-spin- (lle 0, without the intermediate lever, L, in in any of the methods in ordinary use.
  • the compound valve A and B and its spring S are inclosed in a case, E, fastened to the baseplate F, and secured by a lock, K, so that the spring S, after having been adjusted to the required pressure, cannot be tampered with.
  • one or more stops, N are formed on or fixed to the bottom of the valve B. They engage with corresponding stops, N, formed on the annular valve A, and which also form guides to direct it on its seat a, By rotating the valvespindle O the stops N come in contact with the stops N on the annular valve A, and so turn it on its seat a, also allowing an interval for the valve B to rotate on its own seat b.

Description

QNO Model.)
W. N.'NIOHOLSON & A. T. ALLGOGK.
SAFETY VALVE. No.310,459. Patented Jan. 6, 1885.
UNITED STATES PATENT OFFICE.
V. NEYVZAM NICHOLSON AND ARTHUR THOMAS ALLOOOK, OF N EWABK- UPON-TBENT, COUNTY OF NOTTINGHAM, ENGLAND.
SAFETY-VALVE.
SPECIFICATION forming part of Letters Patent No. 310,459, dated January 6, 1885. Application filed November 6,1884. (No model.) Patented in England March 1,1884, No. 4,211.
To all whom it may concern Be it known that we, WILLIAM NEWZAM NICHOLSON and ARTHUR THOMAS ALLoocK, subjects of the Queen of Great Britain, residing at Newark-upo11-Trent, in the county of Nottingham, England, engineers, {have invented certain new and useful Improvements in Safety-Valves, (for which we have obtained a patent in Great Britain, No. 4,211, bearing date March 1, 1884,) of which the following is a specification.
This invention relates to improvements in safety-valves; and it consists in the combination of devices hereinafter described and claimed.
In the appended sheet of drawings, Figure 1 is a side elevation of the valve detached from its seat. Fig. 2 is a longitudinal section, and Fig. Sis a plan of the underside of a complete safety'valve made in accordance with our invention.
It consists of a compound valve made up of the annular valve A, opening outward from its seat a, and an internal central valve, B, closing the annulus and opening inward from its seat I). The inner central valve, B, is provided with a spindle, G, projecting through the annular valve A, and furnished with a loose collar, D, and an adjusting-nut, d, for regulating the pressure of a spiral spring, S, which bears with one extremity against the collar D and with its other end against the annular valve A, so tending to hold the in ternal valve, B, up to its seat 6 on the annular valve A with a force equal to that which is required to hold the whole compound valve down on its seat a against the pressure of the steam in the boiler. The compound valve so formed is weighted down to its seat a by a le ver, L, with a weight or spring, \V, of ordinary construction, which presses on the head of the spindle G of the inner central valve, B. This pressure is transmitted through the spiral spring S to the annular valve A, and so long as it does not exceed that of the spring S the compound valve A and B will act as an ordinary safety-valve. Should, however, the pressure applied by the lever L exceed that of the spring S, the annular valve A will 'be held down to its seat a, the spring S deflected,
and the inner central valve, B, opened inward and the steam allowed to escape.
For the purpose of further calling attention to the escape of steam, due to overweighting the lever L, the dome of a whistle, H, may be attached to the valve-spindle 0, having its edge over the central hole of the annular valve A, so that it may be sounded by the escape of steam "from the valve B, and an audible warning given of the overweighting. Although the drawings show the valve to be weighted by means of the lever L and a weight or spring, W, it is obvious that either of the latter can be applied direct to the valve-spin- (lle 0, without the intermediate lever, L, in in any of the methods in ordinary use. The compound valve A and B and its spring S are inclosed in a case, E, fastened to the baseplate F, and secured by a lock, K, so that the spring S, after having been adjusted to the required pressure, cannot be tampered with. For the purpose of enabling the annular valve A to be rotated on its seat a, one or more stops, N, are formed on or fixed to the bottom of the valve B. They engage with corresponding stops, N, formed on the annular valve A, and which also form guides to direct it on its seat a, By rotating the valvespindle O the stops N come in contact with the stops N on the annular valve A, and so turn it on its seat a, also allowing an interval for the valve B to rotate on its own seat b.
Having now particularly described and ascertained the nature of the said invention and in what manner the same is to be performed, we declare that what we claim isl. The combination of the annular va'lve A, the internal central valve,- B, for controlling the opening in valve A, the spindleOto valve B, spring S, acting on said valves, and .an adjustable pressure a power applied to said spindle, substantially as described.
2. The combination of the annular valve A, the internal central valve, B, for controlling the opening in valve A, the spindle C to valve B, a spring, S, acting on valve A, a collar, D, connecting with spindle O and serving as a bearing for spring S, and a nut, (Z, for regulating the pressure of said spring,substantially as described.
3. The combination, with a valve having an opening therein and a second valve for controlling said valve,of a Whistle adjacent to the opening in said first valve, to sound an alarm when said second valve is moved from its seat, substantially as described.
4. The combination of the annular valve A, the internal central valve, 13, for controlling the opening in said valve, and stops N and N, permitting the rotation of said valves, substantially as described.
In testimony whereof we have hereto set our hands this 17th day of October, 1884.
\V. NEXVZAM NICHOLSON. ARTHUR THOMAS ALLCOCK.
Witnesses:
W. E. HAMMOND, E. BOUSFIELD,
20th of Ncwarhon-T; c211.
US310459D Ttpon-tbent Expired - Lifetime US310459A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433302A (en) * 1943-08-14 1947-12-23 Thompson Prod Inc Pump valve
US2629328A (en) * 1947-09-26 1953-02-24 Floyd R Ladd Pump
US2731035A (en) * 1951-08-30 1956-01-17 Anco Inc Spring loaded dual type relief valve
US3986795A (en) * 1973-08-22 1976-10-19 Caterpillar Tractor Co. Fuel injection assembly
US4450860A (en) * 1981-02-13 1984-05-29 Copeland Corporation Discharge valve guide
US4469126A (en) * 1981-11-04 1984-09-04 Copeland Corporation Discharge valve assembly for refrigeration compressors
US4478243A (en) * 1978-12-20 1984-10-23 Copeland Corporation Valve assembly
US4543989A (en) * 1981-11-04 1985-10-01 Copeland Corporation Discharge valve assembly for refrigeration compressors

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433302A (en) * 1943-08-14 1947-12-23 Thompson Prod Inc Pump valve
US2629328A (en) * 1947-09-26 1953-02-24 Floyd R Ladd Pump
US2731035A (en) * 1951-08-30 1956-01-17 Anco Inc Spring loaded dual type relief valve
US3986795A (en) * 1973-08-22 1976-10-19 Caterpillar Tractor Co. Fuel injection assembly
US4478243A (en) * 1978-12-20 1984-10-23 Copeland Corporation Valve assembly
US4450860A (en) * 1981-02-13 1984-05-29 Copeland Corporation Discharge valve guide
US4469126A (en) * 1981-11-04 1984-09-04 Copeland Corporation Discharge valve assembly for refrigeration compressors
US4543989A (en) * 1981-11-04 1985-10-01 Copeland Corporation Discharge valve assembly for refrigeration compressors

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