US189493A - Improvement in safety-valves - Google Patents
Improvement in safety-valves Download PDFInfo
- Publication number
- US189493A US189493A US189493DA US189493A US 189493 A US189493 A US 189493A US 189493D A US189493D A US 189493DA US 189493 A US189493 A US 189493A
- Authority
- US
- United States
- Prior art keywords
- valve
- safety
- improvement
- valves
- key
- 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
Links
Images
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
- 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
-
- 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
- F16K2200/00—Details of valves
- F16K2200/30—Spring arrangements
- F16K2200/303—Means for protecting the spring in the fluid 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]
- Y10T137/7904—Reciprocating valves
- Y10T137/7922—Spring biased
- Y10T137/7923—With means to protect spring from fluid
Definitions
- the object of my invention is to provide a safety-valve of a cheap and simple construction, which is not liable to get out of order, and which may be readily set, by means of a key, to blow off at any desired pressure, and, when set and the key removed, any tampering with the same is prevented.
- the ordinary lever and weight are dispensed with, and a spiral spring substituted, which is inclosed within a hollow cylindrical valve and a compression-cylinder, the compression-cylinder, which works within the valve proper, being operated by a setscrew in the upper part of thevalve-chamber.
- Figure l is an exterior view ot' my improvement in safety-valves.
- Fig. 2 is a vertical section of the same.v
- the valve-casing consists ot' a cylinder, A, having flanges B and B1 at its upper and lower ends. 0n the upper flange a dome, G, is bolted,having an escape-pipe, D, projecting from it.
- the lower flange, B1 is bolted to a llange, B2, which is secured to the steam-boiler, and in the center of which the valveseat is formed.
- E is a hollow cylindrical valve with a closed bottom, which rests upon the annui lar valve-seat F.
- An annular projection, a is
- valve-seat F also formed on the bottom of the valve, similar to the valve-seat F, by which means a close joint may be maintained, and all possibility of the valve sticking on the seat avoided.
- Gr is a spiral spring, of suitable elasticity, placed within the cylindrical valve E, and
- a hollow compression-cylinder, H which tits into the upper end of the cylindrical valve, and acts as a guide for the spring, and is depressed by means of a setscrew, I.
- This set-screw passes through a flange, J, at the upper part ofthe valve-chamber, and is made with a circular head and two openings, to accommodate the lugs on the lower end of the key K; or the head may be made square, or of any suitable form, to accommodate a socket-wrench.
- the valve-chamber A is made considerably larger in diameter than the valve, so as to form a steam-passage around the valve. It is also furnished with ribs b b b b, to guide the valve as it rises from the seat. The escaping steam passes through the annular space around the valve, into the dome, and out through the pipe D.
- the head ot' the set-screw I is surrounded with a funnel, so as to guide the key or wrench when it is inserted down a long length of pipe.
- the set-screw I by which the spring is depressed and the valve regulated to blow off at the desired pressure, is so far removed from the mouth ot' the escape-pipe D that it will be impossible for a person to tamper with it in the absence of the long-handle key or wrench.
- an additional safeguard may be adopted, in the way of a perforated cover fitting over the end of the pipe, and secured by a lock and key.
Description
I. PHELPS.
SAFETY-VALVE.
No.`189,493. Patented AprllO, 1877.
FlEl
wnNEssES. Mia/)i m MPEIERS. PHOTD-LIIHOGRAPHER, WASHINGTON. u C.
UNTTED STATES PATENT QEEroE-l IRA M. PHELPS, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO SAMUEL L. GARRETT, OF SAME PLAGE.
IMPROVEMENT IN sAFETv-vALvEs.
Specification forming part of Letters Patent No. 189,493., dated April 10, 1877 application liled September 9 1976.
To all whom it may concern Be it known that I, IRA M. PHELPS, of the city and county ofPhiladelphia, State ot'Penn- Sylvania, have invented a new and useful Improvement in Safety-Valves, which improvement is fully set forth in the following specification, reference being had to the accompanying drawings.
The object of my invention is to provide a safety-valve of a cheap and simple construction, which is not liable to get out of order, and which may be readily set, by means of a key, to blow off at any desired pressure, and, when set and the key removed, any tampering with the same is prevented.
In my invention the ordinary lever and weight are dispensed with, and a spiral spring substituted, which is inclosed within a hollow cylindrical valve and a compression-cylinder, the compression-cylinder, which works within the valve proper, being operated by a setscrew in the upper part of thevalve-chamber.
Figure lis an exterior view ot' my improvement in safety-valves. Fig. 2 is a vertical section of the same.v
The valve-casing consists ot' a cylinder, A, having flanges B and B1 at its upper and lower ends. 0n the upper flange a dome, G, is bolted,having an escape-pipe, D, projecting from it. The lower flange, B1, is bolted to a llange, B2, which is secured to the steam-boiler, and in the center of which the valveseat is formed.
E, Fig. 2, is a hollow cylindrical valve with a closed bottom, which rests upon the annui lar valve-seat F. An annular projection, a, is
also formed on the bottom of the valve, similar to the valve-seat F, by which means a close joint may be maintained, and all possibility of the valve sticking on the seat avoided.
Gr is a spiral spring, of suitable elasticity, placed within the cylindrical valve E, and
covered by a hollow compression-cylinder, H, which tits into the upper end of the cylindrical valve, and acts as a guide for the spring, and is depressed by means of a setscrew, I. This set-screw passes through a flange, J, at the upper part ofthe valve-chamber, and is made with a circular head and two openings, to accommodate the lugs on the lower end of the key K; or the head may be made square, or of any suitable form, to accommodate a socket-wrench.
The valve-chamber A is made considerably larger in diameter than the valve, so as to form a steam-passage around the valve. It is also furnished with ribs b b b b, to guide the valve as it rises from the seat. The escaping steam passes through the annular space around the valve, into the dome, and out through the pipe D.
The head ot' the set-screw I is surrounded with a funnel, so as to guide the key or wrench when it is inserted down a long length of pipe.
The set-screw I, by which the spring is depressed and the valve regulated to blow off at the desired pressure, is so far removed from the mouth ot' the escape-pipe D that it will be impossible for a person to tamper with it in the absence of the long-handle key or wrench. In shorter lengths of pipe an additional safeguard may be adopted, in the way of a perforated cover fitting over the end of the pipe, and secured by a lock and key.
What I claim as my invention is- The compression-cylinder H, set-screw l, valve-casing A, and funnel L. adapted to guide the key K, in combination with the safetyvalve E, substantially as shown and described.
IRA M. PHELPS.
Witnesses:
' ALBERT A. FREEMAN,
JEH. S. PIEN.
Publications (1)
Publication Number | Publication Date |
---|---|
US189493A true US189493A (en) | 1877-04-10 |
Family
ID=2258900
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US189493D Expired - Lifetime US189493A (en) | Improvement in safety-valves |
Country Status (1)
Country | Link |
---|---|
US (1) | US189493A (en) |
-
0
- US US189493D patent/US189493A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US208986A (en) | Improvement in valves | |
US501437A (en) | Steam or gas regulator | |
US189493A (en) | Improvement in safety-valves | |
US185578A (en) | Improvement in valves for ice-machines | |
US500645A (en) | William frank west | |
US480528A (en) | Relief-valve | |
US121659A (en) | Improvement in safety-valves for steam-boilers | |
US359389A (en) | Muffler | |
US582445A (en) | Safety-valve | |
US313249A (en) | Faucet | |
US507636A (en) | Valve for beer-tanks | |
US926755A (en) | Non-return stop-valve. | |
US452230A (en) | Muffled pop safety-valve | |
US460728A (en) | Compression-cock | |
US365475A (en) | Automatic water-gage valve | |
US143644A (en) | Improvement in combined indicators and safety-valves | |
US850626A (en) | Safety-valve. | |
US549987A (en) | Safety-valve | |
US287167A (en) | richardson | |
US524208A (en) | kunkle | |
US184128A (en) | Improvement in hydrants | |
US256510A (en) | Half to john h | |
US562543A (en) | Automatic valve for water-tanks | |
US161077A (en) | Improvement in self-closing water-cocks | |
US756624A (en) | Shut-off valve. |