US182183A - Improvement in steam-engines - Google Patents
Improvement in steam-engines Download PDFInfo
- Publication number
- US182183A US182183A US182183DA US182183A US 182183 A US182183 A US 182183A US 182183D A US182183D A US 182183DA US 182183 A US182183 A US 182183A
- Authority
- US
- United States
- Prior art keywords
- steam
- valve
- ports
- improvement
- engines
- 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
- 230000000576 supplementary Effects 0.000 description 12
- 210000000038 chest Anatomy 0.000 description 4
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/046—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed depending on the position of the working member
- F15B11/048—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed depending on the position of the working member with deceleration control
Definitions
- N- PETERS PHOTQ-L
- the object of my invention is toaiford facilities for starting a steam-engine when the valve or valves cover both steam-ports and exclude the steam from .the usual passages.
- Figure l is a sectional view of part of a steam-cylinder with steam-chest and valve, and containing my improvement;
- Fig. 2 a sectional plan on the line 1 2, and
- Fig., 3 a moditicatiou of my invention.
- a supplementary valve-seat, Gr having two ports, m m', the former communicating, through a passage, u, with the main steam-port at one end of the cylinder, and the other, through a passage, n', with the steam-port at the opposite end of the cylinder.
- a small valve, H attached to a spindle, I,'which passes through a stuffing- ⁇ box on the steam-chest.
- H H du plex supplementary valve
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Description
C. ERVIEN.
STEAM-ENGINE.
Patented Sept. 12, 1876.
N- PETERS, PHOTQ-L|THOGRAPHER, WASHINGTON, D CV UNITED STATES PATENT OFFICE.
CHARLES W. ERVIEN, OF PHILADELPHIA, PENNSYLVANIA.
IMPROVEMENT'IN STEAM-ENGINES.
Specitication forming part of Letters Patent No. 182,183, dated September 12, 1876; application led August 4,1816. y
Be it known that I, CHARLES W. ERvIEN,
0f Philadelphia, Pennsylvania, have invented an Improvement in Steam-Engines, of which the following is a spccication:
The object of my invention is toaiford facilities for starting a steam-engine when the valve or valves cover both steam-ports and exclude the steam from .the usual passages.
In the accompanying drawing, Figure l is a sectional view of part of a steam-cylinder with steam-chest and valve, and containing my improvement; Fig. 2, a sectional plan on the line 1 2, and Fig., 3 a moditicatiou of my invention.
Arepresents part of the cylinder of a steamengine, and B the steam-chest. In the present instance there is a duplex valve, D D', connected to the valve-spindle and adapted to the steamports a and exhaust-ports b in the usual manner.
When the engine has stopped at such a point that the valve covers both steam-ports,
.as shown in Fig. 1', the operation' ofthe valve by hand becomes necessary in starting an ordinary engine, and this is usually accomplished by throwing the end of the eccentric rod out ot' gear and manipulating a lever connected to the valve-spindle-operatious demanding costly appliances, which I dispense with by arranging within the steam -chest a supplementary valve-seat, Gr, having two ports, m m', the former communicating, through a passage, u, with the main steam-port at one end of the cylinder, and the other, through a passage, n', with the steam-port at the opposite end of the cylinder. To the valv'eseat G is adapted a small valve, H, attached to a spindle, I,'which passes through a stuffing- `box on the steam-chest.
r point that the main valve covers both steamports a a.
Instead of making long passages -n n', communicating with the steam-ports, and a single seat for a single supplementary valve, there may be within the chest two seats for a du plex supplementary valve, H H, adapted to ports m, communicatingthrough short passages with the main steam-ports.
l do not desire to claim, broadly, the use of a supplementary valve for introducing steam to the cylinder when both steam-ports are closed; nor do I restrict the application of my invention to a valve of the class shown, as it may be applied to different styles of valves; but Y I claim as my invention- The combination, with the steam-chest B and its main valve, of the supplementary valve seat or seats G, arranged within the chest, the ports m m', communicating with the main steam-passages, and the supplementary valve or valves H, all substantially as set forth. Y
In testimony whereof I have signed my name to this `specification in the presence of two subscribing witnesses.
CHARLES W. ERVIEN.
Witnesses:
HARRY HoWsoN, Jr.,
HARRY SMITH.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US182183A true US182183A (en) | 1876-09-12 |
Family
ID=2251589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US182183D Expired - Lifetime US182183A (en) | Improvement in steam-engines |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US182183A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9845599B2 (en) | 2014-04-23 | 2017-12-19 | Nucor Corporation | Structural steel decking system and method of securing |
| US10316519B2 (en) | 2015-05-14 | 2019-06-11 | Nucor Corporation | Structural panel systems with a nested sidelap and method of securing |
| US10370851B2 (en) | 2016-03-21 | 2019-08-06 | Nucor Corporation | Structural systems with improved sidelap and buckling spans |
-
0
- US US182183D patent/US182183A/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9845599B2 (en) | 2014-04-23 | 2017-12-19 | Nucor Corporation | Structural steel decking system and method of securing |
| US10465384B2 (en) | 2014-04-23 | 2019-11-05 | Nucor Corporation | Structural decking system |
| US10316519B2 (en) | 2015-05-14 | 2019-06-11 | Nucor Corporation | Structural panel systems with a nested sidelap and method of securing |
| US10370851B2 (en) | 2016-03-21 | 2019-08-06 | Nucor Corporation | Structural systems with improved sidelap and buckling spans |
| US10808403B2 (en) | 2016-03-21 | 2020-10-20 | Nucor Corporation | Structural systems with improved sidelap and buckling spans |
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