US128923A - Improvement in stop-valves - Google Patents
Improvement in stop-valves Download PDFInfo
- Publication number
- US128923A US128923A US128923DA US128923A US 128923 A US128923 A US 128923A US 128923D A US128923D A US 128923DA US 128923 A US128923 A US 128923A
- Authority
- US
- United States
- Prior art keywords
- disks
- wedge
- valves
- improvement
- disk
- 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
- 241001661918 Bartonia Species 0.000 description 6
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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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
S. P. M. TASKER.
Improvement in Stop-Valves.
Patented July 9, 1872.
FIG. a
mw, wam nInlay/www to, my. /assnR//f's PRocEssJ lessee NI i IMPROVEMENT IN STQP-VALVES.
Specification forming part of Letters Patent No. 128,923, dated July 9, 18772.
sphere with the exception of a dat portion, tov
which the screw is connected.
I am aware that various means have been used for closing duplicate disks on opposite seats by either sliding them forward or, by a` merely lateral movement, outwardly of each disk, the disks at the Sametime keeping apositive lateral position with each other, neither disk being at all times free to keep its parallelism with its seat when the other disk has been raised at one point by dirt or other material getting between the face of the disk and seat.
My inventiomby means of the spherical form `of the wedge and the eounter-form of the connecting parts of the disks, admits of either disk turning in any direction freely on the connecting side of the wedge, when anything gets between the face of the disk and the valveseat, without turning the other disk from its parallel position with its seat; and hence one of the disks or valves may be calculated upon in performing its function when the other is deranged, so as to keep up an effectual operation of the valve at all times.
Figure 1 is a longitudinal section of the improved valve. Fig. 2 is an end view of the box A and disks E E, the central piece B being removed. Fig. 3 is a longitudinal section of the same at right angles to Fig. 1. Figs.
4, 5, and 6 are a face and two edge views of the spherical Wedge F. Figs. 7 and 8 are views at right angles to each other of a modified form of the wedge F.
Like letters in all the figures indicate the same parts.
A is the valvebox. B is the center piece connected with the projection b of the box A. It has a central screw-nut, d, and stalling-box C, through which the screwstem D works for closing the disks E E upon their seats e e. The screw-stem D is provided with a spherical wedge, F, which is connected with the spher ical inclines f f of the disks E E, so thatwhen the hand-wheel G, on the outer end of the screwy stem D, is turned in the direction of the arrows,
the wedge in its forward movement, by pressing upon the inclines f f of the disks, closes them upon their seats e e, as seen in Fig. l. By a reversed movement of the screw-stem D the wedge F is drawn into the space g and away from the-inclines f f, and thus admits of the opening of the disks from their seats. I have represented the spherical wedge F as if the middle portion of the section of a sphere were taken out and the outside portions brought together. It may, however, if desired, have the whole section of a sphere, as shown in Figs. 7 and 8; but I prefer the form represented in Figs. 4, 5, and 6. By the wedge being made of spherical form either disk may be tilted by dirt getting on its seat without disturbing the normal condition of the other.
I claim as my invention- The spherical wedge F, constructed substantially as described, operated by suitable meehanism for closing two opposite disks upon their seats, the said disks having counter spherical inclines combined with the wedge, substantially as described.
y 'STEPHEN P. M. TASKER. y
Witnesses:
STEPHEN UsTrcK, THOMAS J. BEWLEY.
Publications (1)
Publication Number | Publication Date |
---|---|
US128923A true US128923A (en) | 1872-07-09 |
Family
ID=2198341
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US128923D Expired - Lifetime US128923A (en) | Improvement in stop-valves |
Country Status (1)
Country | Link |
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US (1) | US128923A (en) |
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0
- US US128923D patent/US128923A/en not_active Expired - Lifetime
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