US59252A - Improvement in steam piston-valves - Google Patents
Improvement in steam piston-valves Download PDFInfo
- Publication number
- US59252A US59252A US59252DA US59252A US 59252 A US59252 A US 59252A US 59252D A US59252D A US 59252DA US 59252 A US59252 A US 59252A
- Authority
- US
- United States
- Prior art keywords
- valve
- valves
- improvement
- steam
- steam piston
- 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 4
- 102100018802 GANAB Human genes 0.000 description 2
- 101700042360 GANAB Proteins 0.000 description 2
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/16—Closures stopper-rod type, i.e. a stopper-rod being positioned downwardly through the vessel and the metal therein, for selective registry with the pouring opening
- B22D41/18—Stopper-rods therefor
Definitions
- Figure 1 is a vertical section
- Fig. 2 is a cross-section.
- My invention consists in a new and simple Inode of constructing reciprocating governorvalves for steam-engines.
- valve-shell A of suitable size and shape to be secured to the steam-chest and pipes, and being somewhat in form of a cylinder with lower thirdbulged out, as shown in drawings at a. v
- valve-cup B which is cast as a part of the vshell A, is cast concentrically within thel enlarged portion, being attached thereto by the metallic portions b, so as to leave two or more ports of communication between the valve-chambers C and O above and below the cup B.
- E is the valve, secured to the valve-stem D, which is to be secured to the governor-stem.
- G is a circular port, and is the narrow space included between the top of the cup B and the enlarged part of the valve at a.
- the valve can be easily varied in its construction, so as to have two or more ports.
- valve can be balanced opposite the port Gr, so as to shut oli' both at the up and the down strokes.
- valve-shell A constructed as described, being enlarged at a, and provided with cup B, cast as a part of the shell, and attached at b b, so as to form the enlarged circular port G,
- valve E and rod D in combination with the valve E and rod D, in the manner and for the purposes described.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Description
UNITED STATES PATENT OFFICE.
WILLIAM NICHOLS, OF ELMIRA, NEW YORK.
IMPROVEMENT IN STEAM PISTON-VALVES.
Specification forming part of Letters Patent N 0. 59,252, dated October 30, 1866.
To all whom it may concern.'
Beit known that I, WILLIAM NIoHoLs, of Elmira, in the county of Ohemun g, and in the State of New York, have invented certain new and useful Improvements in Valves for Steam- Engines; and I do hereb'y declare that the following is a full, clear, and exact description thereof, reference being had to the annexed drawings, forming a part of this specification.
In the drawings, Figure 1 is a vertical section, and Fig. 2 is a cross-section.
My invention consists in a new and simple Inode of constructing reciprocating governorvalves for steam-engines.
I rst cast the valve-shell A of suitable size and shape to be secured to the steam-chest and pipes, and being somewhat in form of a cylinder with lower thirdbulged out, as shown in drawings at a. v
At the same time the valve-cup B, which is cast as a part of the vshell A, is cast concentrically within thel enlarged portion, being attached thereto by the metallic portions b, so as to leave two or more ports of communication between the valve-chambers C and O above and below the cup B.
E is the valve, secured to the valve-stem D, which is to be secured to the governor-stem. G is a circular port, and is the narrow space included between the top of the cup B and the enlarged part of the valve at a. When desired the valve can be easily varied in its construction, so as to have two or more ports.
The operation is very simple. When the balls of the governor are at rest the valve-port is open, as shown in Fig. l, the valve E being seated in its valve-cup B. As the governorstem rises the valve E proportionally rises and closes the port Gr. The round port G, having so large a'diameter, can be made vertically very narrow, and yet be of sufficient capacity for the steam. By this construction I gain very much in the sensitiveness of the machine, having to move the valve E through such a short space.
It is obvious that the valve can be balanced opposite the port Gr, so as to shut oli' both at the up and the down strokes.
What I claim as my invention, and desire to secure by Letters Patent, is-
The valve-shell A, constructed as described, being enlarged at a, and provided with cup B, cast as a part of the shell, and attached at b b, so as to form the enlarged circular port G,
in combination with the valve E and rod D, in the manner and for the purposes described.
In testimony that I cla-im the above-described invention I'or improved valve for steamengines I have hereunto signed my name this 31st day of July, 1866.
WM. NICHOLS.
Witnesses Y 4 GIIAs. G. LAPPE, O. M. FLETCHER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US59252A true US59252A (en) | 1866-10-30 |
Family
ID=2128791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US59252D Expired - Lifetime US59252A (en) | Improvement in steam piston-valves |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US59252A (en) |
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0
- US US59252D patent/US59252A/en not_active Expired - Lifetime
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