US126589A - Improvement in balanced slide-valves - Google Patents
Improvement in balanced slide-valves Download PDFInfo
- Publication number
- US126589A US126589A US126589DA US126589A US 126589 A US126589 A US 126589A US 126589D A US126589D A US 126589DA US 126589 A US126589 A US 126589A
- Authority
- US
- United States
- Prior art keywords
- valves
- improvement
- valve
- piston
- 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
- 238000010276 construction Methods 0.000 description 2
- 239000000725 suspension 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 improvement consists, first, in constructing therod connectingthe valve with the piston in two parts, having a central joint, the pivot or pin of which is at right angles with the pins on either end, so as to secure a self-adjusting suspension to the valve and piston.
- This arrangement for balancing the valves may be used with or without cut-offs.
- Figure l is a vertical longitudinal section.
- Fig. 2 is a vertical transverse section.
- Fig. 3 is a plan View.
- Fig. 4 is a detail view, on an enlarged scale, showing the connection between the slide-valve and the piston-rod.
- valve O and balancing-piston D connected by a rod which has a central joint, the pivot of which stands at right angles to its bearings E and B, at either end substantially as and for the purpose specified.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Light Receiving Elements (AREA)
Description
Patented May 7,1872.
aamvs's Pnocssag UNITED STATES PATENT QEEICE.
ALLAN STIRLING, OF TROY, NEW YORK.
IMPROVEMENT IN BALANCED SLIDE-VALVES.
To all whom it may concern:
Be it known that I, ALLAN STIRLING, of Troy, in the State of New York, have invented a new and useful Improvement in the Construction of Balanced Slide-Valves of Steam- Engines when the valve is balanced by a piston connected with it, operating in a cylinder at or near right angles with the face of the valve, the inner surface of the piston being exposed to the pressure of steam in the steamchest.
My improvement consists, first, in constructing therod connectingthe valve with the piston in two parts, having a central joint, the pivot or pin of which is at right angles with the pins on either end, so as to secure a self-adjusting suspension to the valve and piston.
This arrangement for balancing the valves may be used with or without cut-offs.
To enable others skilled in the art to make and use' my invention, I will proceed to describe its construction and operation.
Figure l is a vertical longitudinal section. Fig. 2 is a vertical transverse section. Fig. 3 is a plan View. Fig. 4 is a detail view, on an enlarged scale, showing the connection between the slide-valve and the piston-rod.
I construct my valve C and balancing-piston D and cylinder F in the usual way; but, in order to allow the valve to adjust itself to the seat, I make the connecting-rod between the valve and piston in two pieces, jointed together by a transverse joint, as shown at A A; and in order to reduce the friction and wear of the journals, I make the pins and bushes at the ends of the connecting-rod, as shown at B or E, so that the connecting-rod rolls, but does not slide on the pins.
I do not claim the use of abalancing-piston in connection with a slide-valve, for the same has been in use before. My invention relates only to improvements thereon.
What I claim as my invention, and desire to secure by Letters Patent, is-
The valve O and balancing-piston D, connected by a rod which has a central joint, the pivot of which stands at right angles to its bearings E and B, at either end substantially as and for the purpose specified.
ALLAN STIRLING.
Witnesses RicnARn DAvmsoN, Tnos. B. Cook.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US126589A true US126589A (en) | 1872-05-07 |
Family
ID=2196014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US126589D Expired - Lifetime US126589A (en) | Improvement in balanced slide-valves |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US126589A (en) |
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0
- US US126589D patent/US126589A/en not_active Expired - Lifetime
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