US81863A - ashcroft - Google Patents
ashcroft Download PDFInfo
- Publication number
- US81863A US81863A US81863DA US81863A US 81863 A US81863 A US 81863A US 81863D A US81863D A US 81863DA US 81863 A US81863 A US 81863A
- Authority
- US
- United States
- Prior art keywords
- valve
- ashcroft
- spring
- head
- cross
- 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
- 238000004326 stimulated echo acquisition mode for imaging Methods 0.000 description 4
- 230000023298 conjugation with cellular fusion Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000266 injurious Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 230000021037 unidirectional conjugation Effects 0.000 description 2
Images
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
- Y10T137/7929—Spring coaxial with valve
- Y10T137/7932—Valve stem extends through fixed spring abutment
- Y10T137/7933—Yoke or cage-type support for valve stem
Definitions
- my invention consists in protecting the metallic spring or springs used in connection with steam safety-valves.
- A represents the base or seat of my valve.
- C is a cross-head, through which the standards pass, its height being regulated by nuts, 8 s.
- D is the valve-seat, in which is fitted properly the valve V, which has, as usual, a stem, 12, passing upon and through the cross-head O.
- c is a'spring, which is confined between the valve B and the cross-head C surrounding the stem, 6, and properly secured in place.
- the cross-head O has a suitable projection, 12, on each side of it as a top covering for the spring c.
- P is a raised cylindrical projection, of one inch, more or less, in height, which surrounds the lower end of the spring 0. This projection is a part of the top of the valve V.
- d is a cylindrical jacket enveloping the spring a, which must be secured at the top to the cross-head C, or be a part of the same.
- the jacket must extend downward below the top of projection P, fitting nicely around it, so as to permit said projection to rise up inside of the same without friction.
- Thisjaeket forms a complete covering for and protection to the spring 0, so that its condition will be little, if at all, affected by the escape of steam, which is the result aimed at, it being well known that the action of steam will produce oxidation and injurious results.
Description
HEASHOROFT. STEAM SAFETY VALVE.
No. 81,863. Patented Sept. 8, 1868.
gotten gram gatrntgffirer E. H. ASHCROFT, OF BOSTON, MASSACHUSETTS Letters Patent No. 81,863, dated September 8,1868
IMPROVEMENT IN STEAM SAFETY-VALVE.
tits seam refrmh in in; time some fitted mm mating part at flge same.
TO ALL WHOM IT MAY CONCERN-z Be it known that I, E. H. ASHCROFT, of the city of Boston, county of Suffolk, and State of Massachusetts, have invented a new and useful Improvement in Steam Safety-Valves; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawing, making a part of'this specification, ill-Which like parts are indicated by like letters in the several figures.
The nature of my invention consists in protecting the metallic spring or springs used in connection with steam safety-valves.
- To enable others skilled in the art to make and use my invention, I will proceed to describe its construction and operation.
In the drawings- Figure 1 represents a part elevation and section of my improvement, and
Figure 2 a horizontal section of the same;
A represents the base or seat of my valve.
B, standards attached to the base.
C is a cross-head, through which the standards pass, its height being regulated by nuts, 8 s.
D is the valve-seat, in which is fitted properly the valve V, which has, as usual, a stem, 12, passing upon and through the cross-head O.
c is a'spring, which is confined between the valve B and the cross-head C surrounding the stem, 6, and properly secured in place.
The cross-head O has a suitable projection, 12, on each side of it as a top covering for the spring c.
P is a raised cylindrical projection, of one inch, more or less, in height, which surrounds the lower end of the spring 0. This projection is a part of the top of the valve V.
d is a cylindrical jacket enveloping the spring a, which must be secured at the top to the cross-head C, or be a part of the same. The jacket must extend downward below the top of projection P, fitting nicely around it, so as to permit said projection to rise up inside of the same without friction.
Thisjaeket, it will be seen, forms a complete covering for and protection to the spring 0, so that its condition will be little, if at all, affected by the escape of steam, which is the result aimed at, it being well known that the action of steam will produce oxidation and injurious results.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-
The arrangement of the projecting jacket cl with the cross-head C, with reference to the valve and spring,
substantially as herein shown and described.
' E. H. ASHCROFT.
Witnesses:
EDWIN J, WRIGHT, F. W. ASHCROFT.
Publications (1)
Publication Number | Publication Date |
---|---|
US81863A true US81863A (en) | 1868-09-08 |
Family
ID=2151356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US81863D Expired - Lifetime US81863A (en) | ashcroft |
Country Status (1)
Country | Link |
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US (1) | US81863A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180119830A1 (en) * | 2016-10-28 | 2018-05-03 | Vortech Engineering, Inc. | Valve Apparatus, System and Method |
-
0
- US US81863D patent/US81863A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180119830A1 (en) * | 2016-10-28 | 2018-05-03 | Vortech Engineering, Inc. | Valve Apparatus, System and Method |
US10704699B2 (en) * | 2016-10-28 | 2020-07-07 | Vortech Engineering, Inc. | Valve apparatus, system and method |
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