US158333A - Improvement in hydraulic safety-valves - Google Patents

Improvement in hydraulic safety-valves Download PDF

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US158333A
US158333A US158333DA US158333A US 158333 A US158333 A US 158333A US 158333D A US158333D A US 158333DA US 158333 A US158333 A US 158333A
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valve
valves
pressure
improvement
hydraulic safety
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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
    • 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
    • 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
    • Y10T137/7739—Pop closing valves

Definitions

  • This invention relates to certain improvements in safety-valves, mainly intended for hydraulic presses, but applicable also to steam and air engines.
  • the invention consists in novel means whereby the valve may be weighted with great convenience and facility by the aid of the iiuid employed, as hereinafter fully described, and pointed out in the claims.
  • A represents the valvechamber, in which I locate my valve B, provided with a stem, C, that passes through the cap D, and is tightly packed within the same.
  • Valve B rests upon its seat E above the water-chamber G, and closes the annular outlets F.
  • H are equalizing-passages through Athe valve, which connect the water-chamber G with another chamber, G', above the valve, so that the diii'erence of area upon the upper and lower side of the valve is the unit of pressure.
  • a valve-chamber provided with openings in its seat connecting with the escapepipe, in combination with a valve having different areas of pressure' upon its opposite sides, substantially as and for the purpose described.
  • a valve having holes through the same for the purpose of admitting pressure to the upper side of the valve and letting the pressure off when the valve rises, substantially as and for the purpose described.

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

Description

UNITED STATES PATENT OEEToEo JOHN F. TAYLOR, OF CHARLESTON, SOUTH CAROLINA.
IMPROVEMENT IN HYDRAULIC SAFETY-VALVES.
Specication forming part of Letters Patent No. 158,333, dated December 29, 1874; application tiled November 16, 1874.
To all whom it may concern:
Be it known that I, JOHN F. TAYLOR, of the city and county of Charleston, and State of South Carolina, have invented a new and Improved Hydraulic Safety-Valve; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing forming a part of this specification, in whichi Figure l is a vertical section. Fig. 2 is a transverse sect-ion through line a' av. Fig. 3 is a transverse section through line y y.
This invention relates to certain improvements in safety-valves, mainly intended for hydraulic presses, but applicable also to steam and air engines. The invention consists in novel means whereby the valve may be weighted with great convenience and facility by the aid of the iiuid employed, as hereinafter fully described, and pointed out in the claims.
In the drawing, A represents the valvechamber, in which I locate my valve B, provided with a stem, C, that passes through the cap D, and is tightly packed within the same. Valve B rests upon its seat E above the water-chamber G, and closes the annular outlets F. H are equalizing-passages through Athe valve, which connect the water-chamber G with another chamber, G', above the valve, so that the diii'erence of area upon the upper and lower side of the valve is the unit of pressure. For instance, if it is desired to admit a pressure of two thousand sixA hundred pounds to the square inch before allowing the valve to act and the huid to escape through the outlet, we will suppose the lower area of the piston is twelve inches and the upper area is eleven inches, and the valve weighted to two thousand six hundred pounds; then the unit of pressure will be all the weight einployed by ine-z'. e., two thousand six hundred pounds to the square inch-whereas, with the pressure upon one side of the piston alone, the valve would have to be weighted to thirty-one thousand two hundred pounds, or twelve times two thousand six hundred, to give the same unit of pressure, the area being the same 5 or, instead of this, I should be compelled to use an inch pipe with the two thousand six hundred pound weight, which pipe would not relieve the pressure fast y enough.
The above-described arrangement I prefer to all others, as I can make my valve of any reasonable size, and make the weight anything I choose, the valve being so constructed as to relieve a large body ot' water instantly and with a comparatively small weight.
Having thus described my invention, what I claim as new is l. A valve-chamber provided with openings in its seat connecting with the escapepipe, in combination with a valve having different areas of pressure' upon its opposite sides, substantially as and for the purpose described.
2. A valve having holes through the same for the purpose of admitting pressure to the upper side of the valve and letting the pressure off when the valve rises, substantially as and for the purpose described.
3. The combination, with a water-chamber having an annular outlet, of a weighted valve having', on opposite sides, different areas of pressure, and equalizing-passages H through the same, substantially as and for the purpose described.
JOHN F. TAYLOR.
Witnesses:
J oHN D. KELLY, A. 1t. WALKER.
US158333D Improvement in hydraulic safety-valves Expired - Lifetime US158333A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040005291A1 (en) * 2001-10-12 2004-01-08 Rogers Martha Karen Newell Methods for regulating co-stimulatory molecule expression with reactive oxygen
US20040256730A1 (en) * 2003-06-23 2004-12-23 Naohiko Hirano Mold type semiconductor device and method for manufacturing the same
US20050048055A1 (en) * 1998-12-29 2005-03-03 University Of Vermont And State Agricultural College Use of CD40 engagement to alter T cell receptor usage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050048055A1 (en) * 1998-12-29 2005-03-03 University Of Vermont And State Agricultural College Use of CD40 engagement to alter T cell receptor usage
US20040005291A1 (en) * 2001-10-12 2004-01-08 Rogers Martha Karen Newell Methods for regulating co-stimulatory molecule expression with reactive oxygen
US20040256730A1 (en) * 2003-06-23 2004-12-23 Naohiko Hirano Mold type semiconductor device and method for manufacturing the same

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