US128340A - Improvement in slide-valves for steam-engines - Google Patents
Improvement in slide-valves for steam-engines Download PDFInfo
- Publication number
- US128340A US128340A US128340DA US128340A US 128340 A US128340 A US 128340A US 128340D A US128340D A US 128340DA US 128340 A US128340 A US 128340A
- Authority
- US
- United States
- Prior art keywords
- steam
- valves
- levers
- engines
- slide
- 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
- 210000004907 gland Anatomy 0.000 description 3
- 240000004658 Medicago sativa Species 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/0655—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with flat slides
-
- 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
- Y10T137/86879—Reciprocating valve unit
Definitions
- the invention relates to the combination of cylinders and levers for the purpose of sustaining plates placed over the valves, so that the pressure of the steam will be upon the plates and not upon the valves.
- Figure 1 is a side sectional elevation of a device embodying our invention.
- Fig. 2 is a plan of a plate, levers, and valve, the dotted lines representing the valve.
- Fig. 3 is an end elevation of the plate b.
- Fig. 4 is an elevation of the steam-chest cover F.
- Fig. 5 is a plan of Fig. 4.
- Fig. 6 is an elevation of a cylinder with projectionsat one end for the lever Cto rest upon.
- Fig. 7 is a plan of Fig. 6.
- Fig. 8 is an elevation of a small cylinder with projections at one end to receive the lever 0.
- Fig. 9 is a plan of Fig. 8.
- Fig. 10 is an elevation of a gland for the top of the steamchest cover.
- Fig. 11 is a plan of Fig. 10.
- a is a slide-valve open above.
- the dotted line in the elevation represents an ofl'set for a yoke to rest upon, the ofl'set a a being added to the length of the valve for the purpose of of balancing the downward pressure of the steam on the offset a.
- b is a plate covering the whole upper face of the valve and the space through which the valve travels. This plate is sustained by the levers C and O passing through the loops in each end of the plate, one of which loops is shown in the elevation of the plate, Fig. 3. The levers C and 0 rest on projections s s from the steam-chest R.
- the cylinder c is constructed to work loosely in a cavity, c, in the cylinder d, to which it is attached by the bolt E.
- This bolt is screwed through the cylinder d and into the cylinder 0 at c.
- the bolt is constructed with a difl'erent pitch of thread for each cylinder. means the cylinder 0 is adjustable to the cylinder d, the former rising or falling within the latter as the screw is turned; and the action of the two levers upon the plate can be made equal and symmetrical.
- the cylinder d passes through the steam-chest cover F, and is made steam-tight by the gland g being pressed against the packing m m by means of the bolts J J.
- An elliptic spring, K is placed on the top of the bolt H to increase the pressure on the valve, and is adjusted, as may be required, by the bolt 1 passing through that part of the gland marked g.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Turbines (AREA)
Description
Patented June 25,1872.
1% w. v L
C.. H. VANDYNE & S. A. ALEXANDER.
improvement in Slide-Valves for Steam-Engines UNITED STATES PATENT OFFICE.
CHARLES H. VANDYNE, OF HAZL ETON, AND SOLOMON A. ALEXANDER, OF SUNBURY, PENNSYLVANIA.
IMPROVEMENT IN SLlDE-VI-YLVES FOR STEAM-ENGINES.
Specification forming part of Letters Patent No. 128,340, dated June 25, 1872.
SPECIFICATION.
We, CHARLEs H. VANDYNE, of Hazleton, in the county of Luzerne and State of Pennsylvania, and SOLOMON A. ALEXANDER, of Sunbury, in the county of Northumberland and State of Pennsylvania, have invented certain Improvements in the Slide-Valves of Steam-Engines, to relieve them of the excessive pressure from the steam.
Nature and Objects of the Invention.
The invention relates to the combination of cylinders and levers for the purpose of sustaining plates placed over the valves, so that the pressure of the steam will be upon the plates and not upon the valves.
Description of Accompanying Drawing.
Figure 1 is a side sectional elevation of a device embodying our invention. Fig. 2 is a plan of a plate, levers, and valve, the dotted lines representing the valve. Fig. 3 is an end elevation of the plate b. Fig. 4 is an elevation of the steam-chest cover F. Fig. 5 is a plan of Fig. 4. Fig. 6 is an elevation of a cylinder with projectionsat one end for the lever Cto rest upon. Fig. 7 is a plan of Fig. 6. Fig. 8 is an elevation of a small cylinder with projections at one end to receive the lever 0. Fig. 9 is a plan of Fig. 8. Fig. 10 is an elevation of a gland for the top of the steamchest cover. Fig. 11 is a plan of Fig. 10.
General Description.
a is a slide-valve open above. The dotted line in the elevation represents an ofl'set for a yoke to rest upon, the ofl'set a a being added to the length of the valve for the purpose of of balancing the downward pressure of the steam on the offset a. b is a plate covering the whole upper face of the valve and the space through which the valve travels. This plate is sustained by the levers C and O passing through the loops in each end of the plate, one of which loops is shown in the elevation of the plate, Fig. 3. The levers C and 0 rest on projections s s from the steam-chest R. The
other ends of the levers rest on the projections n n and n n of the cylinders d and e. The cylinder c is constructed to work loosely in a cavity, c, in the cylinder d, to which it is attached by the bolt E. This bolt is screwed through the cylinder d and into the cylinder 0 at c. The bolt is constructed with a difl'erent pitch of thread for each cylinder. means the cylinder 0 is adjustable to the cylinder d, the former rising or falling within the latter as the screw is turned; and the action of the two levers upon the plate can be made equal and symmetrical. The cylinder d passes through the steam-chest cover F, and is made steam-tight by the gland g being pressed against the packing m m by means of the bolts J J. An elliptic spring, K, is placed on the top of the bolt H to increase the pressure on the valve, and is adjusted, as may be required, by the bolt 1 passing through that part of the gland marked g.
When the steam enters the chest the pressure acts on the cylinders d and e, which, being attached to the levers C and 0, cause the levers to operate on the fulcrums s s and in the loops b b, so as to counterbalance the heavy pressure of the steam on the plate b. The proportions of the levers C and O and the areas of the cylinders d and e are regulated to resist so much of the pressure upon the plate b as may be desirable.
Claims.
We claim as our invention-- 1. The combination of the levers C and O with the cylinders 01 and e acting on the plate b, substantially as and for the purpose hereinbefore set forth.
2. The combination of the levers C O,'cylinders d e, and plate b, with the valve a having offsets a a", substantially as and for the purposes herein set forth.
CHARLES H. VANDYNE. SOLOMON A. ALEXANDER.
Witnesses:
F. LANDERBURN, JOHN M. WILLIAMS.
By this
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US128340A true US128340A (en) | 1872-06-25 |
Family
ID=2197759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US128340D Expired - Lifetime US128340A (en) | Improvement in slide-valves for steam-engines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US128340A (en) |
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0
- US US128340D patent/US128340A/en not_active Expired - Lifetime
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