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US78280A - Improvement in safety-valves - Google Patents

Improvement in safety-valves Download PDF

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Publication number
US78280A
US78280A US78280DA US78280A US 78280 A US78280 A US 78280A US 78280D A US78280D A US 78280DA US 78280 A US78280 A US 78280A
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US
United States
Prior art keywords
valves
safety
improvement
pressure
steam
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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Publication date
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Publication of US78280A publication Critical patent/US78280A/en
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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
    • 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
    • F16K17/12—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side weight-loaded
    • 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
    • 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
    • F16K17/065—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 with differential piston
    • 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
    • F16K17/10—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 auxiliary valve for fluid operation of the main 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface
    • Y10T137/7835—Valve seating in direction 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
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7908—Weight biased
    • Y10T137/7909—Valve body is the weight

Definitions

  • FREDERICK HARDEN OF CONSHOHOGKEN, PENNSYLVANIA.
  • This invention relates to an improvement in'safety-valves, whereby they are made much more sensitive and sure in their operation than those hitherto in use. And it consists in lthe employment of two valves of dilferent diameters, and arranged as will be hereinafterv described.
  • the drawing is a longitudinal section of the arrangement, showing the position of the valves in the shell, and the manner in which the weight connteracts the pressure of steam.
  • A is the shell, which is connected with a steam-boiler or other vessel by the pipe B.
  • G is the upper valve.
  • D is the lower valve.
  • E is the rod connecting the two.
  • the upper valve opens upward against the atmosphere.
  • the lower valve opens upward against the pressure of steam in the shell.
  • valves vary, so that the upward pressure of the steam may be counteracted by a weight operating on the valves.
  • the diameters of the valves will be determined by the amount of weight employed, and the pressure oi' steam valve acts as a weight.
  • F is a cup which surrounds the lower end of the shell for steadying the valves.
  • the weight is attached to the ri'ng G, and may be more or less, according to ⁇ the pressure required.
  • the safetyvalve can be applied with equal advantage to large and small steamboilers. The valves will not rise until-the steam-pressure overbalances the weight, and as soon as the pressure is reduced they close instantly.
  • This safety-valve is applicable to hydrostatic presses, and to pumps and pipes, and in all cases where it is desired to control the pressure of Vapor or fluids within given limits.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rod-Shaped Construction Members (AREA)

Description

UNITED STATES PATENT QEEICE.
FREDERICK HARDEN, OF CONSHOHOGKEN, PENNSYLVANIA.
IMPROVEMENT IN SAFETY-VALVES.
Specification forming part of Letters Patent No. 78,280, dated May 26, 1868.
To all whom it may concern:
Be it known that I, F. HARDEN, ofConshohocken, in the county of Montgomery and State of Pennsylvania, have invented a new and Improved Safety-Valve; and I do hereby declare that the following` is a full, clear, and exact description thereof, which will enable' those skilled in the art to make and useA the same, reference being had to the accompanying drawings forming a part of this specication.
' This invention relates to an improvement in'safety-valves, whereby they are made much more sensitive and sure in their operation than those hitherto in use. And it consists in lthe employment of two valves of dilferent diameters, and arranged as will be hereinafterv described.
The drawing is a longitudinal section of the arrangement, showing the position of the valves in the shell, and the manner in which the weight connteracts the pressure of steam.
A is the shell, which is connected with a steam-boiler or other vessel by the pipe B.
G is the upper valve. D is the lower valve.
E is the rod connecting the two.
The upper valve opens upward against the atmosphere.
The lower valve opens upward against the pressure of steam in the shell.
It will be seen that the diameters of these valves vary, so that the upward pressure of the steam may be counteracted by a weight operating on the valves. The diameters of the valves will be determined by the amount of weight employed, and the pressure oi' steam valve acts as a weight.
F is a cup which surrounds the lower end of the shell for steadying the valves.
The weight is attached to the ri'ng G, and may be more or less, according to `the pressure required. By retaining the same relative proportions between the valves, the safetyvalve can be applied with equal advantage to large and small steamboilers. The valves will not rise until-the steam-pressure overbalances the weight, and as soon as the pressure is reduced they close instantly.
This safety-valve is applicable to hydrostatic presses, and to pumps and pipes, and in all cases where it is desired to control the pressure of Vapor or fluids within given limits.
Itwill be seen that this valve is so simple and cheap in construction that it possesses, in this respect, a great advantage over all other known valves.
Having thus described my invention, I claim as new and desire to secure by Letters Patentrlhe arrangement oi' the cap F and weighted ring G, with relation to the stem E, and the valves C D of dicerent diameters, as herein described, for the purpose speciied.
FREDERICK HARDEN.
Witnesses GEO. CHUENsIDE, WM. HAYWooD.
US78280D Improvement in safety-valves Expired - Lifetime US78280A (en)

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US78280A true US78280A (en) 1868-05-26

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US78280D Expired - Lifetime US78280A (en) Improvement in safety-valves

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420430A (en) * 1943-05-26 1947-05-13 Bailey Meter Co Gas analyzer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2420430A (en) * 1943-05-26 1947-05-13 Bailey Meter Co Gas analyzer

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