US123546A - Improvement in lock safety-valves for steam-boilers - Google Patents
Improvement in lock safety-valves for steam-boilers Download PDFInfo
- Publication number
- US123546A US123546A US123546DA US123546A US 123546 A US123546 A US 123546A US 123546D A US123546D A US 123546DA US 123546 A US123546 A US 123546A
- Authority
- US
- United States
- Prior art keywords
- valves
- valve
- steam
- boilers
- cap
- 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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Classifications
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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
- F16K15/06—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
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- 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
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- 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
- Y10T137/7939—Head between spring and guide
Definitions
- the case B is cylindrical; is screwed upon the standard, as shown at a a; has a series of long slots or openings, 1) I), made vertically through it; and is surmounted by a circular cap, O,provided with a knob or handle, 0. Furthermore, there is arranged concentrically within the standard A and at its upper part, or applied thereto, in manner as shown in Fig. 2, a cylindrical valve, E, which has a cylindrical extension, (I, provided with a semi-spherical open chamber, 6.
- a guide-cylinder, F closed at top and formed as shown, is screwed at its top, as represented at e 0, into the upper part of the case B, and extends downward nearly to the valveseat, and encompasses and fits to the cylindrical part of the valve, all being as shown.
- a ey lindrical journal, f is projected downward through a corresponding hole, g, made in the head of the guide-cylinder F, and is connected .with the said head by a nut, h, screwed upon the journal.
- a male screw, G which is screwed into and through a nut or cap, H, between and against which and the valve, and within the cylinder F, there is arranged ahelical spring, I.
- ahelical spring, I By taking hold of the knob c and revolving the cap 0 the nut or cap H may be depressed or raised within the cylinder F so as to vary the pressure of the spring upon the valve.
- a bolt, K goes through the cap O and the flange a; of the case B, such bolt being provided with an eye or hole going transversely through its lower part to receive the hasp of a padlock, L.
- the said cap C may or should be provided with a series of holes made down through it at or about at equal distances apart, so as to admit of the cap 0 being fixed or looked after it may have been adjusted, to cause the spring to operate with any desired degree of pressure on the valve. If desirable, such holes may be marked or stamped, or provided with marks or numbers, to indicate the pressure in pounds per square inch of the spring on the safety-valve, when the bolt may be in either of such holes of the flange.
- the space between the bottom of the insulator and guide F and the valve-seat D will admit of the escape of steam into the case B and out of its openings 1) when the valve is forced ofi' its seat.
- the purpose of said part F is not only to guide the valve vertically, but to insulate the spring and its contractile mechanism from the steam, as well as to prevent any person from gaining access to the spring and its cap'nut when the cap 0 is locked down.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Preventing Unauthorised Actuation Of Valves (AREA)
Description
H. G.YASHTON.
Improvement in Lock Safety Valves for Steam Boilers.
Patented Feb.13 1872.
W uynezm e d fy/awe;
an, M r Insane/v53 rnaozss a tubular valve-seat, D, having HENRY G. ASHTON, OF EAST CAMBRIDGE, MASSACHUSETTS.
IMPROVEMENT IN LOCK SAFETY-VALVES FOR STEAM-BOILERS.
Specification forming part of Letters Patent No. 123,546, dated February 13, 1872.
To allpersons to whom tizesepresents may come:
Be it known that I, HENRY G. ASHTON, of East Cambridge, of the county of Middlesex and State of Massachusetts, have invented an Improved Lock Safety-Valve for Steam-Boilers and do hereby declare the same to be fully described in the following specification, and represented in the accompanying drawing, of Which- Figure 1 is a front elevation, and'Fig. 2 a vertical section of it, it being shown as applied to a hollow standard or educt, A, to be fixed to the top of a boiler.
The case B is cylindrical; is screwed upon the standard, as shown at a a; has a series of long slots or openings, 1) I), made vertically through it; and is surmounted by a circular cap, O,provided with a knob or handle, 0. Furthermore, there is arranged concentrically within the standard A and at its upper part, or applied thereto, in manner as shown in Fig. 2, a cylindrical valve, E, which has a cylindrical extension, (I, provided with a semi-spherical open chamber, 6. A guide-cylinder, F, closed at top and formed as shown, is screwed at its top, as represented at e 0, into the upper part of the case B, and extends downward nearly to the valveseat, and encompasses and fits to the cylindrical part of the valve, all being as shown. From and concentrically with the cap 0 a ey lindrical journal, f, is projected downward through a corresponding hole, g, made in the head of the guide-cylinder F, and is connected .with the said head by a nut, h, screwed upon the journal. Furthermore, there extends down from such journal a male screw, G, which is screwed into and through a nut or cap, H, between and against which and the valve, and within the cylinder F, there is arranged ahelical spring, I. By taking hold of the knob c and revolving the cap 0 the nut or cap H may be depressed or raised within the cylinder F so as to vary the pressure of the spring upon the valve. A bolt, K, goes through the cap O and the flange a; of the case B, such bolt being provided with an eye or hole going transversely through its lower part to receive the hasp of a padlock, L. The said cap C may or should be provided with a series of holes made down through it at or about at equal distances apart, so as to admit of the cap 0 being fixed or looked after it may have been adjusted, to cause the spring to operate with any desired degree of pressure on the valve. If desirable, such holes may be marked or stamped, or provided with marks or numbers, to indicate the pressure in pounds per square inch of the spring on the safety-valve, when the bolt may be in either of such holes of the flange. The space between the bottom of the insulator and guide F and the valve-seat D will admit of the escape of steam into the case B and out of its openings 1) when the valve is forced ofi' its seat. The purpose of said part F is not only to guide the valve vertically, but to insulate the spring and its contractile mechanism from the steam, as well as to prevent any person from gaining access to the spring and its cap'nut when the cap 0 is locked down.
I am aware of the safety-valves shown and described in the United States patents 81,320, 86,346, and 97 ,472, and make no claim thereto or anything contained therein. Neither of such valves has to its case a rotary cover with a screw -projected fiom it, as in my safetyvalve; nor has either of the said patented valves a guard, F, screwed into-the outer case and separate from the valve, and serving as a bearing for the screw-journal and its rotary cover; nor is there in said patented valves the arrangement of the guard as a guide for the valve, and at a short distance on" its seat, as is shown in my lock-up safety-valve. Therefore my said valve differs in essential particulars from the others, as stated.
- I claim- The case B, the rotary cap 0, the valve E, its seat D, the insulator F, the spring I, the screw G, and the cap-nut H, all constructed, arranged, and applied together substantially in manner as explained.
HENRY G. ASHTON.
Witnesses:
B. H. EDDY, J. R. Snow.
Publications (1)
Publication Number | Publication Date |
---|---|
US123546A true US123546A (en) | 1872-02-13 |
Family
ID=2192982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US123546D Expired - Lifetime US123546A (en) | Improvement in lock safety-valves for steam-boilers |
Country Status (1)
Country | Link |
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US (1) | US123546A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2603231A (en) * | 1952-07-15 | Pressure relief valve | ||
US2969811A (en) * | 1955-03-14 | 1961-01-31 | Mathew L Freeman | Valves |
US3163178A (en) * | 1962-11-19 | 1964-12-29 | Pioneer Hydraulics Inc | Coupler for hydraulic lines |
US20110073286A1 (en) * | 2009-09-29 | 2011-03-31 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Water-cooled heat dissipation system and water tank thereof |
US20180187788A1 (en) * | 2008-03-27 | 2018-07-05 | Water Management Solutions LLC | Accuracy enhancing valve assembly and method |
-
0
- US US123546D patent/US123546A/en not_active Expired - Lifetime
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2603231A (en) * | 1952-07-15 | Pressure relief valve | ||
US2969811A (en) * | 1955-03-14 | 1961-01-31 | Mathew L Freeman | Valves |
US3163178A (en) * | 1962-11-19 | 1964-12-29 | Pioneer Hydraulics Inc | Coupler for hydraulic lines |
US20180187788A1 (en) * | 2008-03-27 | 2018-07-05 | Water Management Solutions LLC | Accuracy enhancing valve assembly and method |
US10428963B2 (en) * | 2008-03-27 | 2019-10-01 | Water Management Solutions, Llc | Accuracy enhancing valve assembly and method |
US11555549B2 (en) * | 2008-03-27 | 2023-01-17 | Microflow, Llc, A Delaware Limited Liability Company | Accuracy enhancing valve assembly and method |
US20110073286A1 (en) * | 2009-09-29 | 2011-03-31 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Water-cooled heat dissipation system and water tank thereof |
US8631860B2 (en) * | 2009-09-29 | 2014-01-21 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd | Water-cooled heat dissipation system and water tank thereof |
US20140096847A1 (en) * | 2009-09-29 | 2014-04-10 | Hon Hai Precision Industry Co., Ltd. | Water tank of water-cooled heat dissipation system |
US9254948B2 (en) * | 2009-09-29 | 2016-02-09 | Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. | Water tank of water-cooled heat dissipation system |
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