US60081A - William j - Google Patents
William j Download PDFInfo
- Publication number
- US60081A US60081A US60081DA US60081A US 60081 A US60081 A US 60081A US 60081D A US60081D A US 60081DA US 60081 A US60081 A US 60081A
- Authority
- US
- United States
- Prior art keywords
- valve
- yoke
- steam
- pressure
- diaphragm
- 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
- 210000000038 chest Anatomy 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 230000000630 rising 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
- Figure 2 is a longitudinal Vertical section of the same, taken on the plane of the line yy, iig. 1.
- This invention consists in the arrangement of a slotted yoke, which is suspended from the flexible top of a cylindrical case rising from the top of the steam chest, lin combination with a roller tted to travel in the slotted yoke, and which is secured to the back of the valve in such manner that by adjusting the yoke up or down the pressure of the steam on the back of the valve can be counteracted; and it also consists in providing the said cylindrical case witha flexible or yieldingdiaphragm or top, by which Vthe downward pressure of-the steam ⁇ on the valve can be balanced by the upward pressure en said diaphragm.
- A. valve is ⁇ thus obtained which works just as free and easy under a pressure of a hundred or more pounds to the square inch as it does under the ordinary atmospheric pressure.
- A represents a slide Valve of any suitable form on shape, and made to fit steam tight on ⁇ its seat B. From the back of the valve there rise two lugs, a, which straddle a slotted yoke, C, and form the bearings 'for the axle of a roller b. This roller travels in the slot of the yoke, as shown in iig. 1; and it will be readily understood, from said figure, that by adjusting the yoke up or down the pressure of the slide valve on its seat can be cpuntera'cted, and the slide Valve can be made to work free and easy, independent of the pressure of the steam to which it may be exposed.
- the slotted yoke C is suspended from a flexible or yielding diaphragm D, which forms the top of a cylindrical case E, which rises from the steam chest cover, and said yoke may be made adjustable by suitable nuts, o1' ⁇ in any other desirable manner.
- the area-of the diaphragm D is so ⁇ adjusted that is, the area is of' such extent, that the upward pressure .of the steam on its inner surface will balance the downward pressure of the steam on the back of the valve; therefore, a valve is obtained which is self-balancing, and which, when once adjusted, requires no further attention,
- the slotted yoke C is provided with stops f, which will'strike the inner surface of the steam-chest cover, if said yoke rises up too high. The object of these stops is to prevent the valve from jumping oi' itsy seat, and also to save the .exble top D fromv being forced out any further than it properly should be.
Description
Varten tstrs @stmt fitta IMPROVEMENT 1N SLIDE VALVES,
SPEOIFICAT'ION.
T0 ALL WHOM IT MAY CONCERN: p
Be it knownrthatI, WILLIAM J. STEVENS, of the city, county, and State of New York, have invented a new and improved balance Slide Valve; and I do hereby declare that the following is 'a full, clear; and exact' description thereof, reference being had to the accompanying drawing, forming part of this specification, in whichl Figure 1 represents a transverse vertical section of this invention, the line x dig. 2, indicating the piane ofsection. i i l,
Figure 2 is a longitudinal Vertical section of the same, taken on the plane of the line yy, iig. 1.
Similar letters of reference indicate corresponding parts.
This invention consists in the arrangement of a slotted yoke, which is suspended from the flexible top of a cylindrical case rising from the top of the steam chest, lin combination with a roller tted to travel in the slotted yoke, and which is secured to the back of the valve in such manner that by adjusting the yoke up or down the pressure of the steam on the back of the valve can be counteracted; and it also consists in providing the said cylindrical case witha flexible or yieldingdiaphragm or top, by which Vthe downward pressure of-the steam` on the valve can be balanced by the upward pressure en said diaphragm. A. valve is `thus obtained which works just as free and easy under a pressure of a hundred or more pounds to the square inch as it does under the ordinary atmospheric pressure. I
A represents a slide Valve of any suitable form on shape, and made to fit steam tight on `its seat B. From the back of the valve there rise two lugs, a, which straddle a slotted yoke, C, and form the bearings 'for the axle of a roller b. This roller travels in the slot of the yoke, as shown in iig. 1; and it will be readily understood, from said figure, that by adjusting the yoke up or down the pressure of the slide valve on its seat can be cpuntera'cted, and the slide Valve can be made to work free and easy, independent of the pressure of the steam to which it may be exposed. The slotted yoke C is suspended from a flexible or yielding diaphragm D, which forms the top of a cylindrical case E, which rises from the steam chest cover, and said yoke may be made adjustable by suitable nuts, o1'` in any other desirable manner. The area-of the diaphragm D is so `adjusted that is, the area is of' such extent, that the upward pressure .of the steam on its inner surface will balance the downward pressure of the steam on the back of the valve; therefore, a valve is obtained which is self-balancing, and which, when once adjusted, requires no further attention, The slotted yoke C is provided with stops f, which will'strike the inner surface of the steam-chest cover, if said yoke rises up too high. The object of these stops is to prevent the valve from jumping oi' itsy seat, and also to save the .exble top D fromv being forced out any further than it properly should be.
What Ii claim as new, and desire to secure lby Letters Patent, is-
1. The arrangement, relatively to each other, of the slotted yoke C, exible diaphragm D, roller b, stop f, and valve A, substantially as shown and described.44
2. The arrangement of the iexible diaphragm D, with the yoke C, and roller `b, substantially as specified.
3. `The stops f, in combination with the yoke C, diaphragm D, and valve A, substantially as and for thepurpose set forth. V
` WM. J. STEVENS.
Witnesses: l
M. M. LIVINGSTON, JonN R. COOPER.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US60081A true US60081A (en) | 1866-11-27 |
Family
ID=2129620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US60081D Expired - Lifetime US60081A (en) | William j |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US60081A (en) |
-
0
- US US60081D patent/US60081A/en not_active Expired - Lifetime
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