US133038A - Improvement in balanced slide-valves - Google Patents
Improvement in balanced slide-valves Download PDFInfo
- Publication number
- US133038A US133038A US133038DA US133038A US 133038 A US133038 A US 133038A US 133038D A US133038D A US 133038DA US 133038 A US133038 A US 133038A
- Authority
- US
- United States
- Prior art keywords
- valves
- improvement
- rings
- valve
- 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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- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/16—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together
- F16K3/18—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members
- F16K3/184—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members by means of cams
- F16K3/186—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with special arrangements for separating the sealing faces or for pressing them together by movement of the closure members by means of cams by means of cams of wedge from
Definitions
- My invention relates to improvements in that class of slide-valves which have a hearing against the top of the steam-chestin order to prevent the steam from getting above it, and thus permit the valve to move easily without a pressure of steam upon it.
- My improvement consists in employing two beveled pack ing-rings around the upper end of the valve, which are supported on springs so as to be held above the upper face of the valve. These rings bear against the underside of the cover of the steam-chest and make a tight joint, thus preventing the entrance of steam above the valve, which is thereby balanced and the pressure on the seat materially reduced.
- A represents the steam-chest
- B the On top of this valve I secure a circular disk, C, from the base of which a horizontal flange, d, projects.
- This disk should be made of a thickness to come almost, but not quite, up to the top of the steam-chest, as
- a spring At two or more points around the circumference of the disk C I secure upon the flange d a spring, e.
- Each of these springs consists simply of a thin steel plate, which is bent upward at each end and secured by a rivet at its middle to the flange, so that their upturned ends provide the spring;
- f and g are two packing-rings, having their opposite edges beveled so that they will fit one inside of the other, as shown. These rings are of the proper size to fit down over the disk C, and rest upon the springs e.
- the two rings are of sufficient thickness to extend above the upper face of the disk C when placed upon-thesprin gs e, and when the cover of the steam-chest is firmly screwed down the springsc are compressed by the pressure of the cover upon the rings, thus making a tight joint between the rings and cover, which will prevent the steam from getting above the valve.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussion Or Vibration Massage (AREA)
Description
H. KESSLER. Improvement in Balanced Sfide-valves I No. 133,038, Patented Nov.12,1872. I
I: 1 I: :LZI'IQIII. II i 7% @M I Witnesses Inventor 1 M. PHOT0-LITHOGHAPHIC C0 NXIUSBWPNES PROCESS.)
' slide-valve.
UNITED STATES PATENT OFFICE.
HENRY KESSLER, SAN FRANCISCO, CALIFORNIA.
IMPROVEMENT IN BALANCED SLIDE-VALVES. v
Specification forming part of Letters Patent No. 133,038, dated November 12, 1872.
To all whom it may concern:
Be it known that I, HENRY KESSLER, of San Francisco city and county, State of California, have invented Improvements in Slide- Valves; and I do hereby declare the following description and accompanying drawing are sufficient to enable any person skilled in the art or science to which it most nearly appertains to make and use my said invention or improvements without further invention or experiment.
My invention relates to improvements in that class of slide-valves which have a hearing against the top of the steam-chestin order to prevent the steam from getting above it, and thus permit the valve to move easily without a pressure of steam upon it. My improvement consists in employing two beveled pack ing-rings around the upper end of the valve, which are supported on springs so as to be held above the upper face of the valve. These rings bear against the underside of the cover of the steam-chest and make a tight joint, thus preventing the entrance of steam above the valve, which is thereby balanced and the pressure on the seat materially reduced.
In order to more fully illustrate and explain my invention, reference is had to the accompanying drawing forming a part of this specitication, in which-- Figure l is a perspective view of the steamchest valve and rings. Fig. 2 is a vertical section of the same.
A represents the steam-chest, and B the On top of this valve I secure a circular disk, C, from the base of which a horizontal flange, d, projects. This disk should be made of a thickness to come almost, but not quite, up to the top of the steam-chest, as
shown. At two or more points around the circumference of the disk C I secure upon the flange d a spring, e. Each of these springs consists simply of a thin steel plate, which is bent upward at each end and secured by a rivet at its middle to the flange, so that their upturned ends provide the spring; f and g are two packing-rings, having their opposite edges beveled so that they will fit one inside of the other, as shown. These rings are of the proper size to fit down over the disk C, and rest upon the springs e. The two rings are of sufficient thickness to extend above the upper face of the disk C when placed upon-thesprin gs e, and when the cover of the steam-chest is firmly screwed down the springsc are compressed by the pressure of the cover upon the rings, thus making a tight joint between the rings and cover, which will prevent the steam from getting above the valve.
By this arrangement I secure all of the advantages of a balanced slide-valve, and also reduce the area of the friction-surface to the simple bearing-surface of the rings.
- Having thus described my invention, what I claim, and desire to secure by Letters Patent is- T he valve B, provided with the disk C with its flange d, in combination with the springs e and beveled packing-rings f g, all constructed and arranged as described, to operate substantially as and for the purpose above set forth.
In witness whereof I hereunto set my hand and seal.
HENRY KESSLER. [L- 5.]
Witnesses:
J. L. BOONE, O. M. RICHARDSON.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US133038A true US133038A (en) | 1872-11-12 |
Family
ID=2202454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US133038D Expired - Lifetime US133038A (en) | Improvement in balanced slide-valves |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US133038A (en) |
-
0
- US US133038D patent/US133038A/en not_active Expired - Lifetime
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