US134203A - Improvement in balanced slide-valves - Google Patents
Improvement in balanced slide-valves Download PDFInfo
- Publication number
- US134203A US134203A US134203DA US134203A US 134203 A US134203 A US 134203A US 134203D A US134203D A US 134203DA US 134203 A US134203 A US 134203A
- Authority
- US
- United States
- Prior art keywords
- steam
- slide
- valves
- valve
- improvement
- 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
- 210000002832 Shoulder Anatomy 0.000 description 4
- 210000001847 Jaw Anatomy 0.000 description 2
- 230000000994 depressed Effects 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
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
- Witmm gguvmtnxz AM PHDTO-LITHUGRAPPHG COAX/058081153 PROCESS) end on a horizontal pivot.
- invention consists, first, in connecting a pivoted yoke with the slide-valve, said yoke having a vertical stem that swings at its upper This pivot is supported in a tube or cylinder, which is held balanced by the steam, so that the actual support is applied to the valve by the steam, but indirectly under said cylinder, and thence to the pivot at the upper end of the rod.
- the invention also consists in the arrangement of the various details of the invention, whereby the main idea, above set forth, is more fully carried out.
- the letter A represents the slide-valve, of suitable size, shape, and kind; It works in the steam-chest B over the ports a, b, and c, substantially in the same manner as other slide-valves.
- G is a yoke straddling the slide-valve and pivoted thereto at its ends.
- D is a rod projecting upward from the yoke into a vertical cylinder, E, that is applied above the steam-chest, as shown.
- the upper end of the rod D is by a pin, 6, pivoted in the upper end of the tube E.
- the lower end of the tube E enters an opening in the top of the steam-chest, and has directly above said top f an outwardly-projecting flange, g. Steam is admitted under this flange through holes h in the top of the steam-chest, so that the cylinder E will be balancedthat is to say, held on the steam-cushion under its flange 9, there being thus steam under the tube E, which tends to elevate the same.
- the valve that is suspended by the pin 0 from said tube will be raised ofi its seat at least as much as is necessary to avoid friction.
- the tube E is held and guided in a cylindrical projection, F, that is built upon the steam-chest, as shown. Suitable packing-rings i prevent the escape of steam around E within F.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve Housings (AREA)
- Cookers (AREA)
- Control Of Turbines (AREA)
Description
H. HENDBICKSON.
. Balanced Slide-Vaives.
No. 134,203. I 4 Patented Dec.24, 1872.
Jaw
JZ'F":
Witmm: gguvmtnxz AM PHDTO-LITHUGRAPPHG COAX/058081153 PROCESS) end on a horizontal pivot.
UNITED STATES PATENT QFFICE.
HUBBARD HENDBIGKSON, OF RED BANK, NEW JERSEY.
IMPROVEMENT IN BALANCED SLIDE-VALVES.
Specification forming part of Letters Patent No. 134,203, dated December 24, 1872.
To all whom it may concern:
Be it known that I, HUBBARD HENDRICK- SON, of Red Bank, in the county of Monmouth and State of New Jersey, have invented a new and Improved Slide-Valve, of which the following is a specification:
. invention consists, first, in connecting a pivoted yoke with the slide-valve, said yoke having a vertical stem that swings at its upper This pivot is supported in a tube or cylinder, which is held balanced by the steam, so that the actual support is applied to the valve by the steam, but indirectly under said cylinder, and thence to the pivot at the upper end of the rod. The invention also consists in the arrangement of the various details of the invention, whereby the main idea, above set forth, is more fully carried out.
In the accompanying drawing, the letter A represents the slide-valve, of suitable size, shape, and kind; It works in the steam-chest B over the ports a, b, and c, substantially in the same manner as other slide-valves. G is a yoke straddling the slide-valve and pivoted thereto at its ends. D is a rod projecting upward from the yoke into a vertical cylinder, E, that is applied above the steam-chest, as shown. The upper end of the rod D is by a pin, 6, pivoted in the upper end of the tube E. As the slide-valve moves back and forward in the steam-chest the rod D will swing on its pivot e in conformity with and following the motions of the slide-valve. The lower end of the tube E enters an opening in the top of the steam-chest, and has directly above said top f an outwardly-projecting flange, g. Steam is admitted under this flange through holes h in the top of the steam-chest, so that the cylinder E will be balancedthat is to say, held on the steam-cushion under its flange 9, there being thus steam under the tube E, which tends to elevate the same. The valve that is suspended by the pin 0 from said tube will be raised ofi its seat at least as much as is necessary to avoid friction. The tube E is held and guided in a cylindrical projection, F, that is built upon the steam-chest, as shown. Suitable packing-rings i prevent the escape of steam around E within F. Steam is, in a pipe or steam passage j, also carried to above a flange or shoulder, l, of the tube, so that by this means the tube can also be depressed by steam-power. The proportionate differences in the areal extents of the shoulders g and Z will determine the greater or less pressure upward applied to the cylinder E, so that thus the balancing of the valve can be regulated by enlarging or reducing the respective flangesurfaces. on is a pipe projecting from the cylinder F, for the discharge of steam therein contained. The pipes j and m are provided with cocks to control the passage of steam through them.
Having thus described my invention ,I claim as new and desire to secure by Letters Patentp 1. The means described for exerting a yield ing pressure upon a slide-valve to hold it firmly to its seat at all parts thereof, but with- 'out unnecessary friction, consisting of the pivoted yoke-rod O D and a steam-balanced cylinder, E, as set forth.
2. The means described for enabling the downward pressure of a steam-balanced cylinder, E g h, to be increased, consisting of the flange l, cavity thereabove, and steam-inlet, all arranged as specified.
HUBBARD HENDRIGKSON.
Witnesses:
A. V. BRIEsEN, T. B. MosHER.
Publications (1)
Publication Number | Publication Date |
---|---|
US134203A true US134203A (en) | 1872-12-24 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US134203D Expired - Lifetime US134203A (en) | Improvement in balanced slide-valves |
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US (1) | US134203A (en) |
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- US US134203D patent/US134203A/en not_active Expired - Lifetime
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