US12187A - Improved crank-connection in double-piston steam-engines - Google Patents
Improved crank-connection in double-piston steam-engines Download PDFInfo
- Publication number
- US12187A US12187A US12187DA US12187A US 12187 A US12187 A US 12187A US 12187D A US12187D A US 12187DA US 12187 A US12187 A US 12187A
- Authority
- US
- United States
- Prior art keywords
- crank
- engines
- pistons
- double
- connection
- 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
- 238000005266 casting Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
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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
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/02—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders arranged oppositely relative to main shaft
Definitions
- Thisinvention relates to an improvement in reciprocatingsteam-engines5 Aand it consists in having two pistons within a cylinder, said pistons being connected with a crank, as will be hereinafter shown, so that the pistons act directly upon it without the intervention of a piston and connecting rods, and transmit the power of the steam directly to the driving or crank shaft.
- A represents a steameylinder provided with the usual slide-valve
- B B are two pistons which are connected by a cross head or plate, O, which is sufficiently long to allow a requisitedistance or space between the two pistons.
- the pistons B B and cross head or plate C may be composed of one casting.
- the steam is admitted into the ends of the cylinder and exhausted or allowed to escape in the usual manner, there being no peculiarity in the construction of the valve,which, as before stated, is the ordinary slidevalve.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
NITED STATES i PATENT OFFICE.
JOHN SMITH, OF CINCINNATI, OHIO.
IIVIPROVED CRANK-CONNECTION IN DOUBLE-PISTON STEAM-ENGINES.
` Specification forming part of Letters Patent No. 12,187, dated January 72, 1855.
.To @ZZ whom, it may concern:
Beit known that I, Jol-IN SMITH, of Cincinnati, in the county of Hamilton and State of Ohio, have invented anew and useful Improvement in Steam-Engines; and I do hereby declare that the following is a full, clear, and exact description of the same, referencebeing had to the annexed drawings, making a part of this specification, in whieh- Figure l is a longitudinal section of astcamcylinder, the pistons within it not being bisected. Fig.2 is a transverse section of the same.
Similar letters of reference indicate corresponding parts in the two figures.
Thisinvention relates to an improvement in reciprocatingsteam-engines5 Aand it consists in having two pistons within a cylinder, said pistons being connected with a crank, as will be hereinafter shown, so that the pistons act directly upon it without the intervention of a piston and connecting rods, and transmit the power of the steam directly to the driving or crank shaft.
A represents a steameylinder provided with the usual slide-valve, and B B are two pistons which are connected by a cross head or plate, O, which is sufficiently long to allow a requisitedistance or space between the two pistons.
At about the center of the cross head or plate O there is a vertical slot, D, in which the crank E fits, said crank being on a shaft, F, which passes transversely through the cylinder, as shown in Fig. 2. The steam is admited alternatelyinto the ends ofthe cylinder A 'and acts against the outer faces of the pistons forth the crank E is turned and a rotary motion given the shaft F.
By the above improvementthe ordinary piston and connecting rods are dispensed with, the pistons being connected directly with the crank. The engine is economical to Inanufac` ture, having but few parts, and works well in practice.
The pistons B B and cross head or plate C may be composed of one casting. The steam is admitted into the ends of the cylinder and exhausted or allowed to escape in the usual manner, there being no peculiarity in the construction of the valve,which, as before stated, is the ordinary slidevalve.
I do not claim the employment of two pistons within a cylinder separately; but
What I do claim as new, and desire to secure by Letters Patent, is-
rIhe employment or use of two pistons, B B, connected by a cross head or plate, C, which has a slot, D, through it, in which the crank E of the shaft F ts,whereby the pistons are directly connected to the crank, and a rotary motion given the crank-shaft without the intervention ofthe usual piston and connecting rods, as herein shown.
JOI-IN SMITH.
Vitnesses:
W. L. NnwrLL, N. MARCHANT.
Publications (1)
Publication Number | Publication Date |
---|---|
US12187A true US12187A (en) | 1855-01-02 |
Family
ID=2072525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12187D Expired - Lifetime US12187A (en) | Improved crank-connection in double-piston steam-engines |
Country Status (1)
Country | Link |
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US (1) | US12187A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998036698A1 (en) | 1996-02-23 | 1998-08-27 | Slocum D Barclay | Joint support |
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0
- US US12187D patent/US12187A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998036698A1 (en) | 1996-02-23 | 1998-08-27 | Slocum D Barclay | Joint support |
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