US469173A - Steam-engine valve - Google Patents
Steam-engine valve Download PDFInfo
- Publication number
- US469173A US469173A US469173DA US469173A US 469173 A US469173 A US 469173A US 469173D A US469173D A US 469173DA US 469173 A US469173 A US 469173A
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- United States
- Prior art keywords
- steam
- valve
- main
- knockers
- cylinder
- 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
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- 238000005266 casting Methods 0.000 description 6
- 210000000038 chest Anatomy 0.000 description 6
- 210000001503 Joints Anatomy 0.000 description 4
- 241000422980 Marietta Species 0.000 description 4
- 241000283220 Odobenus rosmarus Species 0.000 description 4
- 238000004326 stimulated echo acquisition mode for imaging Methods 0.000 description 4
- 240000009011 Carpobrotus edulis Species 0.000 description 2
- 240000001973 Ficus microcarpa Species 0.000 description 2
- 206010022114 Injury Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910000754 Wrought iron Inorganic materials 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 230000003137 locomotive Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/103—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber
- F04B9/105—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having only one pumping chamber reciprocating movement of the pumping member being obtained by a double-acting liquid motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B17/00—Reciprocating-piston machines or engines characterised by use of uniflow principle
Definitions
- ATTORNEYS No Mode-1.
- W. S. PATTIN W. M. MORSE 8v D. P. PATTIN. STEAM ENGINE VALVE.-
- Our invention relates 'to improvements in that class of steam-valves that are employed on steam-pumps and like engines of reciprocating movement where the main steam-Valve is moved by a secondary steam-piston, which in turn is moved by an auxiliary valve, said auxiliary valve being operated by knockers moved by the direct action of the main steampiston.
- Our invention more particularly relates to improvements in the arrangement of steamports, valve-seats, steam-pockets, the., which we secure by a central plate, and to the peculiar form and arrangementof the auxiliary Valve and tappets or knockers, as hereinafter fully described.
- Figure-1 is a vertical longitudinal section of a steam-cylinder, valve, and valve-chest, taken on lines'E2 F2, Fig. 4.
- Fig. 2 is a vertical longitudinal section of a steam-cylinder, main and auxiliary valves, and steam-chest on line G2 H2, Fig. 5.
- Fig. 3 is a vertical longitudinal section of a steam-cylinder, auxiliary valve, steam chest, and knockers on line 12 J2, Fig. 5.
- Fig. 4 is a vertical cross-section of a steam-cylinder, valves, and chest on line A2 B2, Fig. l.
- Fig. 5 is a verticalcross-section of a steam-cylinder, valves, and chest on line O2 D2, Figs. 2 and Figs.
- FIG. 6 and 7 are a bottom and top plan, respectively, of the central plate N.
- Figs. 8 and 9 are a bottom and top view, respectively, of the auxiliary valve X.
- Figs. 10 and 1l are side views of the two knockers or tappets -K K.
- Fig. l2 is a top plan of main-cylinder casting, showing knocker-grooves, main steam-ports S S', and exhaust-port Y.-
- P is the main steam-piston
- Z the piston-rod
- V is the main steamevalve, and A the valve or secondary piston, having heads of unequal area and provided with suitable packingrings.
- N is the central plate, (shown in top and bottom views in Figs. 7 and 6, respectively,) in
- the central plate N rises into the steam-chest (see Fig. l) and forms the seats of main valve V and also of auxiliary Valve X. It further forms a steam-tight joint between the two knocker-cavities O O', Fig. 12, and in connection with the auxiliary valve X forms a steam-tight joint between the two knocker-cavities O O', so that no steam can blowthrough from one end of cylinder to the other.
- X is the auxiliary valve, (shown in top and bottom views in Figs. 9 and 8, respectively,) in which T T are cavities, into which the knockers K K project in order to move the valve.
- F F aresquare openings through the valve, through which live steam is admitted from the steam-space L, Figs. 4 and 2, to the ends of auxiliary piston through the steam-pockets Q Q in central plate and the steam-pockets R R in under side of auxiliary valve, Vthence (see Fig. 2) through the ports C C', Fig. 6, to end of piston A, Fig. 1.
- the pockets R R in under side of auxiliary valve are both livesteam and exhaust pockets, since when one is a live-steam the other is an exhaust pocket; but the steam-pockets Q Q in center plate are always live-steam pockets.
- the knockers K K', Figs. lO and l1 slide in groovesO O in main-cylinder casting, projecting downward into the main cylinder (see Fig. 3) so as to be moved by the main steampiston P, the heads of main cylinder having suitable recesses into which knockers move, so that by no possibility can they be caught and broken by main piston P.
- the knockers K K also'project upward into cavities in un- IOC der side of auxiliary valve, as heretofore described.
- the exhaust-opening Y under auxiliary valve is made Very large, as shown, in order to insure the seating of said valve when working ina vertical position, as when applied toy locomotive air-pumps.
- the cylinder-casting and covered by the central plate and auxiliary valve, and being two solid pieces of wrought iron or steel, are not liable to any injury or to getting out of ord er, as might be the case in hinged tappets or connected tappets.
- Ve are aware that various forms of auxiliaryvalves operated by knockers, levers, or
- the central plate N having the main ports E S S', knocker-holes U U', passages C C', and recesses Q Q', in vcombination with the auxiliary valve X, with knocker-recesses' T T', openings F F', and recesses R R', and the knockers K K', slidingin the cylinder and extending through the central plate into the recesses T T of the auxiliary valve, substantially as shown and described.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Description
(No Model.) 2 'sheets-sheet 1.
W. s. PATTIN, Wim. MORS an D. P. PATTIN. STEAM ENGINE VALVE.
.lll
ATTORNEYS (No Mode-1.) .zusneets-sheet l2. W. S. PATTIN, W. M. MORSE 8v D. P. PATTIN. STEAM ENGINE VALVE.-
110.469-,173- Patented Peb. 16, 1892.
Mum..." l', lllll nu O Jv O l Y mmm o 1. e
w/rA/Essfs NVE/vrees:
UNITED STATES PATENT OFFICE.
lVlNFIELD S. PATTIN, WILLIAM M.` MORSE, AND DOUGLAS P. PATTIN, OF MARIETTA, OHIO.
STEAM-ENGINE VALVE.
SPECIFICATION forming part of Letters Patent No. 469,173, dated February 16, 1892.
' Application filed November '7, 1891. Serial No. t11,237. (No model.)
v To cir/ZZ whom it may concern.-
Be it known that we, WINFIELD S. PATTIN, WILLIAM M. MORSE, and DOUGLAS P. PATTIN, citizens of the United States, residing at Marietta,in the county of Washington and State of Ohio, have invented certain new and useful Improvements in Steam-Engine Valves, of which the following is a specication.
Our invention relates 'to improvements in that class of steam-valves that are employed on steam-pumps and like engines of reciprocating movement where the main steam-Valve is moved by a secondary steam-piston, which in turn is moved by an auxiliary valve, said auxiliary valve being operated by knockers moved by the direct action of the main steampiston.
Our invention more particularly relates to improvements in the arrangement of steamports, valve-seats, steam-pockets, the., which we secure by a central plate, and to the peculiar form and arrangementof the auxiliary Valve and tappets or knockers, as hereinafter fully described.
Figure-1 is a vertical longitudinal section of a steam-cylinder, valve, and valve-chest, taken on lines'E2 F2, Fig. 4. Fig. 2 is a vertical longitudinal section of a steam-cylinder, main and auxiliary valves, and steam-chest on line G2 H2, Fig. 5. Fig. 3 is a vertical longitudinal section of a steam-cylinder, auxiliary valve, steam chest, and knockers on line 12 J2, Fig. 5. Fig. 4 is a vertical cross-section of a steam-cylinder, valves, and chest on line A2 B2, Fig. l. Fig. 5 is a verticalcross-section of a steam-cylinder, valves, and chest on line O2 D2, Figs. 2 and Figs. 6 and 7 are a bottom and top plan, respectively, of the central plate N. Figs. 8 and 9 are a bottom and top view, respectively, of the auxiliary valve X. Figs. 10 and 1l are side views of the two knockers or tappets -K K. Fig. l2 is a top plan of main-cylinder casting, showing knocker-grooves, main steam-ports S S', and exhaust-port Y.-
Similar letters refer to similar parts throughout the several views.
P is the main steam-piston, and Z the piston-rod. j
V is the main steamevalve, and A the valve or secondary piston, having heads of unequal area and provided with suitable packingrings.
N is the central plate, (shown in top and bottom views in Figs. 7 and 6, respectively,) in
which plate are the main steam-ports S S the main exhaust-port E, the exhaust-port Y for4 auxiliary valve, the auxiliaryvalve steamports C C', leading to ends of piston A, the steam-pockets Q Q to admit steam under auxiliary valve, and the cavities U U, through which the knockers K K project into the cavities T T in under side of auxiliary valve. (See Fig. 8.) The central plate N rises into the steam-chest (see Fig. l) and forms the seats of main valve V and also of auxiliary Valve X. It further forms a steam-tight joint between the two knocker-cavities O O', Fig. 12, and in connection with the auxiliary valve X forms a steam-tight joint between the two knocker-cavities O O', so that no steam can blowthrough from one end of cylinder to the other.
X is the auxiliary valve, (shown in top and bottom views in Figs. 9 and 8, respectively,) in which T T are cavities, into which the knockers K K project in order to move the valve.
F F aresquare openings through the valve, through which live steam is admitted from the steam-space L, Figs. 4 and 2, to the ends of auxiliary piston through the steam-pockets Q Q in central plate and the steam-pockets R R in under side of auxiliary valve, Vthence (see Fig. 2) through the ports C C', Fig. 6, to end of piston A, Fig. 1. The pockets R R in under side of auxiliary valve are both livesteam and exhaust pockets, since when one is a live-steam the other is an exhaust pocket; but the steam-pockets Q Q in center plate are always live-steam pockets.
The knockers K K', Figs. lO and l1, slide in groovesO O in main-cylinder casting, projecting downward into the main cylinder (see Fig. 3) so as to be moved by the main steampiston P, the heads of main cylinder having suitable recesses into which knockers move, so that by no possibility can they be caught and broken by main piston P. The knockers K K also'project upward into cavities in un- IOC der side of auxiliary valve, as heretofore described. Y
The exhaust-opening Y under auxiliary valve is made Very large, as shown, in order to insure the seating of said valve when working ina vertical position, as when applied toy locomotive air-pumps.
the cylinder-casting and covered by the central plate and auxiliary valve, and being two solid pieces of wrought iron or steel, are not liable to any injury or to getting out of ord er, as might be the case in hinged tappets or connected tappets.
The method of operation is as follows: Referring to Fig. 1, the action of the main valve V over the two Vinduction-,I )orts S S' Aand the` intermediate exhaust-port E is the ordinary; and well-known action o f the D-valve-that' is .to say, in the position shown in this viewv steam. is entering at the right-hand end of the Figs. l, 2, and,3,theknocker K ismoved to the right, as shown in Fig. 8, carrying with it the auxiliary valve X to the position shown in Fig. 2. Steam is then admitted from the central` cavity of steam-chest L (seeFig. 4) through the opening F, Fig. 2, in auxiliary valve, thence through steam-pocket Q in central plate,
thence through steam-pocket Rin under side of auxiliary valve, throughport C in central plate, an d` in steam-chest to ri ght-hand end of piston A, thus throwing4 piston A, carrying .main valve V, to position shown in Fig. 2. At this time steam is admitted through main port. S to right-hand end of main piston P, when conditions are ready to commence return stroke. Meantime exhaust has taken place from left-hand head of valve-piston A, through port C and valve-pocket R' to main exhaust Y.
Ve are aware that various forms of auxiliaryvalves operated by knockers, levers, or
tappets in the cylinder have been heretofore provided. Our invention is chiefly distinctive in the separate central plate N, in which the various ports or openings are formed and through which the knockers operate upon the auxiliary valve. This plate entirely sepaj rates the two knocker-chambers and prevents The knockers K K', being entirely within leakage of steam from one to the other by making close contact between the lower side of the auxiliary valves and the top side of the cylinder at a point between the knockers. This enables us to cheaply construct an engine of this type with but few parts and with no necessity 4of any nicety of adjustment. Furthermore, all the joints are ground joints, and all gaskets are done away with.
Having thus described our invention, what we claim asnew,fand desireto securebyLetters Patent, is- Jl p -l. In a steam-cylinder having a piston-actuated slide-valve, the vcombination of thesliding knockers K K', theauxiliary valve X, engaged by said knockers and moving Awith them, and theintermediateplate N, having openings lthrough which its knockers pass in `connecting with the valve, the said plate serving'to make a tight connection between the lower sideof said valve and the upper surface of vthe cylinder at a point between the knockers, whereby the knocker-chambers are entirely separated from each other, substan tially as shown and described. Y
2. The central plate N, having the main ports E S S', knocker-holes U U', passages C C', and recesses Q Q', in vcombination with the auxiliary valve X, with knocker-recesses' T T', openings F F', and recesses R R', and the knockers K K', slidingin the cylinder and extending through the central plate into the recesses T T of the auxiliary valve, substantially as shown and described.
WINFIELD SPATTIN. WILLIAM M. MORSE. DOUGLAS P. PATTIN. Witnesses:
A. L. SMITH, PHIL. BACHMANN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US469173A true US469173A (en) | 1892-02-16 |
Family
ID=2538033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US469173D Expired - Lifetime US469173A (en) | Steam-engine valve |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US469173A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2635586A (en) * | 1948-11-17 | 1953-04-21 | Kuhn George | Passageway system for fluid operated devices |
-
0
- US US469173D patent/US469173A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2635586A (en) * | 1948-11-17 | 1953-04-21 | Kuhn George | Passageway system for fluid operated devices |
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