US162831A - Improvement in lock-up safety-valves - Google Patents

Improvement in lock-up safety-valves Download PDF

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Publication number
US162831A
US162831A US162831DA US162831A US 162831 A US162831 A US 162831A US 162831D A US162831D A US 162831DA US 162831 A US162831 A US 162831A
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Prior art keywords
valve
screw
safety
lock
improvement
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Expired - Lifetime
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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
    • 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
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
    • 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
    • F16K17/06—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 special arrangements for adjusting the opening pressure
    • 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
    • Y10T137/7738—Pop 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
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7866—Plural seating
    • Y10T137/7867—Sequential
    • 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
    • Y10T137/7929—Spring coaxial with valve

Definitions

  • My invention is an improvement in the class of safety-valves which are constructed with an annular chamber in the under side of a flange formed on the head thereof, the same being generally held to their seats by a rod or stem, which entersa central recess in the upper side of the valve.
  • the improvement relates to the construction and arrangement of parts,whereby economy of space is attained, and the sealed pressure-adjusting screw protected, as hereinafter described.
  • the adjusting-screw for regulating the tension of the spring is adapted for and provided with a split-wrench, with taper adjusting screw and nut for turning it.
  • Figure l is a sectional elevation of the improved lock-up safety-valve.
  • Fig. 2 is partly a top view and partly a horizontal section.
  • Fig. 3 is a detail in section, showing a modified form of the valve and its seat.
  • Fig. 4 is a detail in top view, showing the seal applied for guarding the adjusting-screw of the spring.
  • Fig. 5 is a plan of a cap for inelosing the top of the adjusting-screw.
  • Fig. 6 is partly a side elevation and partly a sectional elevation of the wrench for turning the adjusting-screw
  • Fig. 7 is an end elevation of the wrench.
  • A is the steam-pipe, which is connected to the boiler or to another pipe at B.
  • J is the cap to this pipe, for inclosing the valve. It has a flange, D, extending down the side of the pipe, and looking to it by the ribs E on the pipe and the grooves in. the flange. It is also fastened against turning after being adjusted by a set-screw, F.
  • G annular escape-passage, G, through the top of the cap next to the flange O.
  • H is the valve.
  • the seat is thus divided into two parts, one of which may receive the valve into it a little, as at Q, or it may receive it on the surface, as at R.
  • the former arrangement will probably be most eflicient in retaining the steam in the chambers to increase the lift, but both will act in the same manner to a certain extent.
  • the adjusting-screw M screws down into a socket, S, to be covered by a cap, T, and to guard against improperly changing it by unauthorized persons a seal, consisting of a lead disk, 0;, is put on and fastened by pressing some parts into holes or recesses in the top of the screw, so as to hold it on temporarily to prevent the application of a wrench for turning it.
  • the wrench consists of the taper split socket-key V and nut 'W, the socket being made round and ribbed inside to fit grooves to be made in the head of the screw, to prevent the wrench from slipping round. This form is also difficult to imitate by false keys, but other forms may be used.
  • the valve has wings X to keep it in proper position in the steam-pipe.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Description

ATTORNEYS.
Patented May 4,1875.
E B KUNKLE Lock-Up Safty-Valve.
NI'IED SATES ATENT FFIC.
ERASTUS B. KUNKLE, OF FORT WAYNE, INDIANA, ASSIGNOR TO HIMSELF AND E. BOSTIGK, OF SAME PLACE.
IMPROVEMENT IN LOCK-UP SAFETY-VALVES.
Specification forming part of Letters Patent No.- 162,83 1, dated May 4, 1875; application filed November 14 1874.
State of Indiana, have invented a new and Improved Lock-Up Safety-Valve, of which the following is a specification:
My invention is an improvement in the class of safety-valves which are constructed with an annular chamber in the under side of a flange formed on the head thereof, the same being generally held to their seats by a rod or stem, which entersa central recess in the upper side of the valve.
The improvement relates to the construction and arrangement of parts,whereby economy of space is attained, and the sealed pressure-adjusting screw protected, as hereinafter described.
The adjusting-screw for regulating the tension of the spring is adapted for and provided with a split-wrench, with taper adjusting screw and nut for turning it.
Figure l is a sectional elevation of the improved lock-up safety-valve. Fig. 2 is partly a top view and partly a horizontal section. Fig. 3 is a detail in section, showing a modified form of the valve and its seat. Fig. 4 is a detail in top view, showing the seal applied for guarding the adjusting-screw of the spring. Fig. 5 is a plan of a cap for inelosing the top of the adjusting-screw. Fig. 6 is partly a side elevation and partly a sectional elevation of the wrench for turning the adjusting-screw, and Fig. 7 is an end elevation of the wrench.
Similar letters of reference indicate correspondin g parts.
A is the steam-pipe, which is connected to the boiler or to another pipe at B. (J is the cap to this pipe, for inclosing the valve. It has a flange, D, extending down the side of the pipe, and looking to it by the ribs E on the pipe and the grooves in. the flange. It is also fastened against turning after being adjusted by a set-screw, F. There is an annular escape-passage, G, through the top of the cap next to the flange O. H is the valve. It has a deep chamber, I, in the upper side, in which is the pressure-spring, J, for holding it closed, the spring being arranged between the b plates K and L, and confined against the bottom of the chamber by the adjusting-screw M in the cap. N are the channels in the valveseat, to receive steam when the valve opens to amplify the lifting force on the valve, and insure the holding of it open until the pressure falls somewhat. The seat is thus divided into two parts, one of which may receive the valve into it a little, as at Q, or it may receive it on the surface, as at R. The former arrangement will probably be most eflicient in retaining the steam in the chambers to increase the lift, but both will act in the same manner to a certain extent. The adjusting-screw M screws down into a socket, S, to be covered by a cap, T, and to guard against improperly changing it by unauthorized persons a seal, consisting of a lead disk, 0;, is put on and fastened by pressing some parts into holes or recesses in the top of the screw, so as to hold it on temporarily to prevent the application of a wrench for turning it. The wrench consists of the taper split socket-key V and nut 'W, the socket being made round and ribbed inside to fit grooves to be made in the head of the screw, to prevent the wrench from slipping round. This form is also difficult to imitate by false keys, but other forms may be used. The valve has wings X to keep it in proper position in the steam-pipe.
Having th us described my invention, I claim as new and desire to secure by Letters Patcut-- 1. The cup or chambered valve H, the spiral spring J, and disks K L, respectively provided with a point and recess, and arranged within the valve, the pointed pressure-adjusting screw M, and the steam'pipe or casing A, having cap 0, all combined as shown and described.
2. In asafety-valve, the combination of the steam-pipe cap 0, having a socket, S, and screw-cap T with the sealed pressure screw M, to permit the latter to be turned by a wrench, substantially as herein described.
EBASTUS B. KUNKLE. Witnesses:
E. N. THOMAS,
HENRY ZIMERMAN,
US162831D Improvement in lock-up safety-valves Expired - Lifetime US162831A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695032A (en) * 1951-10-31 1954-11-23 Mcdonnell & Miller Inc Pressure relief valve
US2904616A (en) * 1958-03-18 1959-09-15 Mc Graw Edison Co Encased electrical apparatus having pressure relief means
US6497248B2 (en) * 2001-01-18 2002-12-24 Qualitrol Corporation Pressure relief device with one piece gasket

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2695032A (en) * 1951-10-31 1954-11-23 Mcdonnell & Miller Inc Pressure relief valve
US2904616A (en) * 1958-03-18 1959-09-15 Mc Graw Edison Co Encased electrical apparatus having pressure relief means
US6497248B2 (en) * 2001-01-18 2002-12-24 Qualitrol Corporation Pressure relief device with one piece gasket

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