US178393A - Improvement in balanced slide-valves - Google Patents
Improvement in balanced slide-valves Download PDFInfo
- Publication number
- US178393A US178393A US178393DA US178393A US 178393 A US178393 A US 178393A US 178393D A US178393D A US 178393DA US 178393 A US178393 A US 178393A
- Authority
- US
- United States
- Prior art keywords
- steam
- valve
- valves
- improvement
- balanced slide
- 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
- 210000000614 Ribs Anatomy 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 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
- 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
- the invention consists in the improvement of balanced slide-valves, by combining a piston, diaphragm, and valve with a seat having port, passages, and channels leading from steam-inlet, substantially as hereinafter described.
- the piston -rod may travel forward and backward under the support above it by a roller in its upper end, or by a vibrating rod bearing on or pivoted to its upper end, and also bearing against the support above the center of the course traveled by the valve.
- the former arrangement is the one best adapted for a steam-engine, and the latter is preferred for a steam-pump.
- Figure l is a longitudinal sectional elevation of an engine constructed according to my invention, taken on the line 3/ y. Fig. 2. Fig.
- ' 2 is a transverse section on the line a; a' of Fig.
- Fig. 3 is a section on line 2 z
- Fig. 4 is a detail section of the modification adapted for steam-pumps
- Fig. 5 is a plan of the ports in the valve-seat.
- A is the valve, in which the live-steam ports B extend only a short distance upward from the bottom, and which receive the steam from passages O, to which it is supplied through the valve-seat by the passages D, which, in
Description
WATSON.
BALANCED SLIDE VALVE. No. 178,393. Patented June 6, 1876..
Ammms.
N PETERS. FHOTO-LITIIOGRAPHER, WASm-NGTON, D C.
UNI ED STATES PATENT OFFICE.
JOHN EDWARD WATSON, OF LOUISVILLE,'KENTUGKY.
-IMPROVEMENT IN BALANCED SLIDE -VALVES.
Specification forming part of Letters Patent No. 178,393, dated June 6, 1876; application filed April 18, 1876.
To all whom it may concern Be it known that I, JOHN E. WATSON, of Louisville, in the county of Jefferson and State of Kentucky, have invented a new and Improved Balanced Slide-Valve, of which the following is a specification:
The invention consists in the improvement of balanced slide-valves, by combining a piston, diaphragm, and valve with a seat having port, passages, and channels leading from steam-inlet, substantially as hereinafter described.
The piston -rod may travel forward and backward under the support above it by a roller in its upper end, or by a vibrating rod bearing on or pivoted to its upper end, and also bearing against the support above the center of the course traveled by the valve.
The former arrangement is the one best adapted for a steam-engine, and the latter is preferred for a steam-pump.
Figure l is a longitudinal sectional elevation of an engine constructed according to my invention, taken on the line 3/ y. Fig. 2. Fig.
' 2 is a transverse section on the line a; a' of Fig.
1. Fig. 3 is a section on line 2 z, and Fig. 4 is a detail section of the modification adapted for steam-pumps. Fig. 5 is a plan of the ports in the valve-seat.
Similar letters of reference indicate corresponding parts.
A is the valve, in which the live-steam ports B extend only a short distance upward from the bottom, and which receive the steam from passages O, to which it is supplied through the valve-seat by the passages D, which, in
this example, are cored around the cylinder to the chamber E, which the steam enters at F. From port B there is a passage, I, admitting steam into the chamber J, in which is a diaphragm, K, of thin copper or other flexible metal, and above which is the piston L, the rod of which bears against the support M by a roller, N, or a vibrating rod, 0. This diaphragm takes the upward pressure of the steam, and has sufficient movement to allow the valve to be pressed by the down pressure in said chamber steam-tight on the seat, and the area of the chamber is sufficiently larger than that on the under side of the "alve subject to lifting pressure to keep the valve tight. The valve works between raised ribs P, which keep it from working out of place laterally,
. and it works without a steam-chest, which is not needed in consequence of receiving the steam through the seat below, on which it works.
When a single valve is used, it will have two inlets to the chamber J, as in Fig. 4, 7
instead of one, as in the double valve.
Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is----- The combination of piston L, diaphragm K, and valve A with seat, having port B, steampassages O O, and steam channels leading from inlet F, all arranged substantially as and for the purpose specified.
JOHN EDWARD WATSON. Witnesses: T. B. MOSHER, ALEX. F. ROBERTS-
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US178393A true US178393A (en) | 1876-06-06 |
Family
ID=2247800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US178393D Expired - Lifetime US178393A (en) | Improvement in balanced slide-valves |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US178393A (en) |
-
0
- US US178393D patent/US178393A/en not_active Expired - Lifetime
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