US7350A - Abbawerement oe several slide-valves ist the same steam-chest - Google Patents
Abbawerement oe several slide-valves ist the same steam-chest Download PDFInfo
- Publication number
- US7350A US7350A US7350DA US7350A US 7350 A US7350 A US 7350A US 7350D A US7350D A US 7350DA US 7350 A US7350 A US 7350A
- Authority
- US
- United States
- Prior art keywords
- valves
- steam
- chest
- abbawerement
- ist
- 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
- 210000000038 chest Anatomy 0.000 description 12
- 230000003467 diminishing Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000003137 locomotive Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
- B25C1/00—Hand-held nailing tools; Nail feeding devices
- B25C1/04—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure
- B25C1/041—Hand-held nailing tools; Nail feeding devices operated by fluid pressure, e.g. by air pressure with fixed main cylinder
Definitions
- FIG. l is a plan of the valves, eccen trics, &c., ⁇ the cap plate of the steam chest being removed in order to exhibit the interior of the steam chest.
- Fig. 2 is a vertical cross section on the line 0, o, of Fig. l, the cap plate being in its proper position.
- Fig. 3 is a longitudinal section on the line w, w, of Fig. l, the cap plate being in its place.
- Fig. 4 is a plan of the steam chest, the cap and valves H, I-I, being rqmoved in order to show the openings in the valve seat.
- My improved arrangement consists in making two or more valve seats in the same steam chest, with a valve cup to each seat, one of which is made in the usual form, and is used when the engine has to draw its ordinary load, and the valve cups to the other seats are made of various lengths longer than is usual and are used when the engine has less than its ordinary load, and graduates the quantity of steam used as to apportion it in some measure according to theA load, and thus enables the engineer to economize, or reduce the quantity of fuel used to generate the steam.
- This is eit'ected by stopping the ingress of the steam into the cylinder when the cylinder is one third, one half, or partially lled with steam; and by this means the expansive force of the steam is gained.
- valve cup H isintended to work a full stroke of steam and is arranged u on one side of the aforesaid triangular be plate, and is operated by the usual kind of machinery used for that purpose, such as eccentrics B, B eccentric hook rods C, C', vibrating lever beam E, rock ⁇ shaft D, valve rod F, F2, cam shaft M, and
- the valve cup H is intended to work a is effected by making the sweep of the y eccentrics B2 twice as long as the eccentrics B, B, so that when the piston arrives at the center of the cylinder the valve closes and shuts or cuts olf the steam upon that side of the piston until the next stroke.
- the valve I-I is connected to the eccentric B2 by the eccentric hook rod C2, lever E2 valve rod F2.
- the cam V2 is designed for disengaging the hook rod C2, and is operated in the usual manner.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Turbines (AREA)
Description
UNITED sTATEs PATENT orrrcn.
CYRUSA RICHARDSON, 0F WOBURN, MASSACHUSETTS.
ARRANGEMET 0F SEVERAL SLIDE-VALVES IN `'III-IE SAME STEAIVLCHEST.
Specification of Letters Patent No. 7,350, dated May 7, 1850.
To all whom t may concern:
Be it known that I, CYRUs RioHARDsoN, of the town of Woburn, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Arranging Valves for Locomotives and other Engines, called Richardsons Improved Arrangement of Valves, which is described as follows, reference being had to the annexed drawings of the same making part of this specification.`
` Figure l is a plan of the valves, eccen trics, &c.,` the cap plate of the steam chest being removed in order to exhibit the interior of the steam chest. Fig. 2 is a vertical cross section on the line 0, o, of Fig. l, the cap plate being in its proper position. Fig. 3, is a longitudinal section on the line w, w, of Fig. l, the cap plate being in its place. Fig. 4 is a plan of the steam chest, the cap and valves H, I-I, being rqmoved in order to show the openings in the valve seat.
Similar letters in the several gures refer to like parts.
My improved arrangement consists in making two or more valve seats in the same steam chest, with a valve cup to each seat, one of which is made in the usual form, and is used when the engine has to draw its ordinary load, and the valve cups to the other seats are made of various lengths longer than is usual and are used when the engine has less than its ordinary load, and graduates the quantity of steam used as to apportion it in some measure according to theA load, and thus enables the engineer to economize, or reduce the quantity of fuel used to generate the steam. This is eit'ected by stopping the ingress of the steam into the cylinder when the cylinder is one third, one half, or partially lled with steam; and by this means the expansive force of the steam is gained.
In the drawing accompanying my application I have represented similar valve seats upon, and wavs through the sides of `a triangular bed plate, or prism, represented in the drawings at I, the valve cup H isintended to work a full stroke of steam and is arranged u on one side of the aforesaid triangular be plate, and is operated by the usual kind of machinery used for that purpose, such as eccentrics B, B eccentric hook rods C, C', vibrating lever beam E, rock` shaft D, valve rod F, F2, cam shaft M, and
lifting cams V, V, for disengaging the ec-v centric rods C, C', from the lever E, all of Lwhich may be made and operated in the usual manner to change orstop the motion of the valve cup.
The valve cup H is intended to work a is effected by making the sweep of the y eccentrics B2 twice as long as the eccentrics B, B, so that when the piston arrives at the center of the cylinder the valve closes and shuts or cuts olf the steam upon that side of the piston until the next stroke. The valve I-I is connected to the eccentric B2 by the eccentric hook rod C2, lever E2 valve rod F2. The cam V2 is designed for disengaging the hook rod C2, and is operated in the usual manner.
The operation of the common slide valves in steam engines being so well known as to require no farther description, I shall therefore proceed to describe the operation or erates the valve H giving the piston half a stroke of steam. There may be several pins in the lever E2 at various distances from the center of the rock shaft to eifect a less stroke by diminishing the sweep of the beam. Where the amount of power required varies, I contemplate the use of steam chests with such a number of valve seats wit-h the requisite steam ways as may be necessary to eect the changes in the quantity of steamused, to suit the quantity of power required, the valves to be arranged upon a plane, or the portion of a cylinder, or upon angular elevations. I am aware (that two or more slide valves and valve seats have been used in the same `steam chest, as is the case when a cut ofi'. valve above the usual valve is employed.V I am also aware"VV and from the cylinder of a steam engine, ar-
ranged and operated to graduate the admissionofsteam into the cylinders ofsteam engines in the manner and for the purpose substantially as above set forth in the foregoing specification.
In testimony whereof I have hereunto signed my name before two subscribing witnesses.
CYRUS RICHARDSON.
Witnesses:
o JOHN B. BEERS,
JAMES M. RANDALL.
Publications (1)
Publication Number | Publication Date |
---|---|
US7350A true US7350A (en) | 1850-05-07 |
Family
ID=2067658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US7350D Expired - Lifetime US7350A (en) | Abbawerement oe several slide-valves ist the same steam-chest |
Country Status (1)
Country | Link |
---|---|
US (1) | US7350A (en) |
-
0
- US US7350D patent/US7350A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7350A (en) | Abbawerement oe several slide-valves ist the same steam-chest | |
US11549A (en) | Improved arrangement of the steam-engine | |
US12187A (en) | Improved crank-connection in double-piston steam-engines | |
US795880A (en) | Compound locomotive. | |
US13320A (en) | Water-meter | |
US10417A (en) | Valve and valve-seat op steam-engines | |
US14906A (en) | Arrangement of supplemental valves for high-pressure steam-engines | |
US386285A (en) | baily | |
US10454A (en) | Piston-valve and steam-passage in cylindrical steam-chests | |
US14749A (en) | Completing the throw of the valves op direct-acting engines by the | |
US440531A (en) | Marine engine | |
US330862A (en) | Moeeis wuebpel | |
US149068A (en) | Improvement in steam-engine valve-gears | |
US13359A (en) | Ctjt-ofe valve for steam-engines | |
US554966A (en) | wigzell | |
US22322A (en) | Valve of steam-engines | |
USRE759E (en) | Improvement in cut-off and working valves of steam-engines | |
US762377A (en) | Engine valve-gear. | |
US118692A (en) | Improvement in steam-engines | |
US133260A (en) | Improvement in reciprocating engines | |
US510279A (en) | Valve-gear for steam-engines | |
US54150A (en) | Improvement in steam-engines | |
US87448A (en) | Improvement in steam-engine valve-gearing | |
US486148A (en) | Steam-engine valve | |
US684143A (en) | Cut-off-valve mechanism. |