US288350A - Valve - Google Patents
Valve Download PDFInfo
- Publication number
- US288350A US288350A US288350DA US288350A US 288350 A US288350 A US 288350A US 288350D A US288350D A US 288350DA US 288350 A US288350 A US 288350A
- Authority
- US
- United States
- Prior art keywords
- valve
- face
- ports
- seat
- steam
- 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
- 230000000875 corresponding Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 230000001808 coupling Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F16K3/04—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 pivoted closure members
- F16K3/06—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 pivoted closure members in the form of closure plates arranged between supply and discharge passages
- F16K3/08—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 pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86718—Dividing into parallel flow paths with recombining
- Y10T137/86743—Rotary
Definitions
- This invention relates to that class of valves commonly called rotary ⁇ valves; and the invention consists in the peculiar and novel shape ofthe valve face and seat, bymeans of which the valve is kept steam or water tight during a long period of use without the necessity of refacing it, and without the use of any packing whatever, all as more fully hereinafter described.
- Figurel is a vertical central section of my improved valve, taken through the axis of the inlet and outlet couplings.
- Fig. ⁇ 2 is a-horizontal section on line XX.
- Fig. 3 is a vertical central section of ⁇ the valve, taken at right angles to the one in FigQl.
- Fig. 4 is adiagram section of my improved valve-face and of the ordinary conical one.
- C is the inlet and D the outlet coupling.
- E is the valve ⁇ proper. Its face is conoidal, and ⁇ has been generated by the concave line F, which shows the valve-face in section.
- valve-seat G is cast integral with the upper half of the shell, and is of proper shape to fit the face of the valve steam-ti ht.
- i H is the valve-stem, and I the valve-handle, by means of which it can be rotated.
- ⁇ K isa nut which secures the handle upon the stem and allows the valve tobe tightened to its seat.
- valve-face is either a plane disk or a cone
- the valve begins to leak after having been in ⁇ use some time, and this isentirely owing to the unequal wear of the valve-face upon its seat when in operation, as the parts farther away from the center of rotation have to traverse part of a larger circle than those nearer the center.
- the valveface gets more worn awaynearer the edges than toward the center, and nothing but refacing can Vmake it steam-tight.
- my valve-face after being worn off, may be' ⁇ perfectly parallel tg the original face, providing its concavo generating curve has been properly selected, which may easily be done by the constructer, if he proportions his curve so as to make up for the loss of travel toward the center of the valve by a corresponding comparative increase of the wearing-surface.
- valve-seat the material of which the valve and valve-seat are madedoes not affect the question of unequal wear. In practice both the valve-seat and the valve-face will wear off, but it is clear that if one is adjusted to ⁇ wear off evenly the other will Ido the same.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Description
(No Model.)
VALVE.
- Patented Nov. 13, 1883;
N Prrzns. mwmogmpmn ummm". D. c:A
UNITED STATES PATENT OFFICE.
RICHARD LAUCHNER, or BAY CITY, MICHIGAN.
VALVE.
p SPEGIFICATIONforming part'of Letters Patent No. 288,350, dated November 13, 1883.
i Application nieu January s1', icas. (No model.)
To @ZZ whomimoty concern.-
Beit known that I, RICHARD LAUCKNER, of Bay City, in the county of Bay and State of Michigan, have invented new and useful Improvements in Valves; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form a part of this specification. Y
This invention relates to that class of valves commonly called rotary` valves; and the invention consists in the peculiar and novel shape ofthe valve face and seat, bymeans of which the valve is kept steam or water tight during a long period of use without the necessity of refacing it, and without the use of any packing whatever, all as more fully hereinafter described.
Figurel is a vertical central section of my improved valve, taken through the axis of the inlet and outlet couplings. Fig. `2 is a-horizontal section on line XX. Fig. 3 is a vertical central section of `the valve, taken at right angles to the one in FigQl. Fig. 4 is adiagram section of my improved valve-face and of the ordinary conical one.
In the accompanying drawings, A repre-` sents the lower and B the upper half of the valve-shell, each provided with a correspond ing annular ring, a, by means .of which the two halves can be fitted together steam-tight.
C is the inlet and D the outlet coupling.
E is the valve` proper. Its face is conoidal, and `has been generated by the concave line F, which shows the valve-face in section.
b b are two ports in the valve, diametrically opposite each `other and corresponding with two ports, c c, in thevalve-seat G. The two ports clead into ducts d, cast in the upper `valve-shell, andleading both into the outletcoupling D. f In the drawings the valve-seat G is cast integral with the upper half of the shell, and is of proper shape to fit the face of the valve steam-ti ht. i H is the valve-stem, and I the valve-handle, by means of which it can be rotated.
` K isa nut which secures the handle upon the stem and allows the valve tobe tightened to its seat.
In practice the valve is opened by making the ports Zi and c coincide. It has been demonstrated in practice that in all rotary valves where the valve-face is either a plane disk or a cone the valve begins to leak after having been in `use some time, and this isentirely owing to the unequal wear of the valve-face upon its seat when in operation, as the parts farther away from the center of rotation have to traverse part of a larger circle than those nearer the center. Theresult is that the valveface gets more worn awaynearer the edges than toward the center, and nothing but refacing can Vmake it steam-tight.
In the diagram in Fig. 4, I show my improved valve-face and an ordinary conical one, the lower lines showing the worn faces of each. It is clear that the conical face, after it is Worn, will not flt its seat steam-tight; but
my valve-face, after being worn off, may be'` perfectly parallel tg the original face, providing its concavo generating curve has been properly selected, which may easily be done by the constructer, if he proportions his curve so as to make up for the loss of travel toward the center of the valve by a corresponding comparative increase of the wearing-surface.
It is clear that the material of which the valve and valve-seat are madedoes not affect the question of unequal wear. In practice both the valve-seat and the valve-face will wear off, but it is clear that if one is adjusted to `wear off evenly the other will Ido the same.
What I claim as my invention 'is- In a rotary valve, the parts A and B, the former having the ,inlet-coupling C, and the latter having the ports c c, water-way d, connecting said ports and outlet-coupling D, combined with the conoidal valve E, having ports b b, arranged to register with the ports. c c when the cock is open, and adapted to close the said ports by a quarter-turn of the valve- 'stem H, as set forth.
RICHARD LAUGKNER.
Witnesses:4
H. S. SPRAGUE, E. SCULLY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US288350A true US288350A (en) | 1883-11-13 |
Family
ID=2357543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US288350D Expired - Lifetime US288350A (en) | Valve |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US288350A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2471859A (en) * | 1944-11-18 | 1949-05-31 | Delphis C Breault | Pressure regulating valve |
-
0
- US US288350D patent/US288350A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2471859A (en) * | 1944-11-18 | 1949-05-31 | Delphis C Breault | Pressure regulating valve |
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