STEAM ENGINE VALVE GEAR ON THE COMPUTER

Windows Version
by Charles Dockstader
HCR 69 Box 3111    California Valley CA 93453      805 475 2519

UpDated July 23 2008    Windows Ver 2.7.3


         Central Pacific RR  229  4-8-0   1882     
      Feb 2 2007  at Bitter Creek Western RR

In 1986 I wrote the first of the MS-Dos versions of the software to simulate Baker valve gear. Since then I have made continuous additions and improvements to add other types of valve gear and improve functionality and ease of use. In early 1999 I started converting one of the valve gears to the Windows format. I have made the software available by placing it in the public domain as freeware. There are no restrictions on the use of the software. I, the author accept no responsibility for any claim arising from the use of the software.

The programs can be used with the default settings to view operation and characteristics of any of the types of valve gear supported. They may also be used to check or change designs as all the dimensions in the gear can be modified. Performance for all types can be viewed using several different types of diagrams.

The default dimensions used in the programs are in inches and most are 1.5 inch scale. They can be user modified to suite the scale desired or for use with the metric system.


 
Windows Types of Valve Gear Supported
Start Menu, Instructions, Icon, etc File 10
Zeuner Diagram.   File 10
Walschaert Inside Admission File 10A
Walschaert Outside Admission File 10A
Stephenson Inside Admission File 10A
Stephenson Outside Admission File 10A
Baker Inside Admission File 10B
Baker Outside Admission File 10B
Southern Outside Admission File 10B
Joy1 Outside Admission File 10B
Hackworth Outside Admission File 10C
Marshall/Hackworth2 Outside Admission File 10C
Bremme/Klug Outside Admission File 10C
Woolf Outside Admission File 10C
Allan Outside Admission File 10D
Gooch Outside Admission File 10D
Young Inside Admission File 10D
Crampton Outside Admission File 10D
Corliss Reynolds Trip Rotary Valve File 10E
Corliss Inglis Spencer Trip Rotary Valve File 10E
Simple Oscillator Oscillating Cylinder File 10E
Franklin Oscillating Cam, Poppet Valve File 10E
Caprotti Rotating Cams, Poppet Valve File 10F
"R-C' Rotating Cam Rotating Cams, Poppet Valve File 10F
Single Acting Rotary Valve File 10F
A J Stevens 1885 Outside Admission double valve  File 10F
Southern  Inside Admission File 10G
Bagnall Outside Admission File 10G
Baguley Outside Admission File 10G
Milling Inside Admission File 10G
Greenly Outside Admission File 10H
Heywood Outside Admission File 10H
Joy1  Inside Admission File 10H
Stephenson Special Outside Admission File 10H
Double Acting Rotary Valve File 10I
Fink Outside Admission File 10I
Dake Square Piston File 10I
Western River Steam Boat Poppet Valve Calif. CutOff File 10I
Helmholtz  Outside Admission File 10J
El Gobernador(A.J.Stevens1882) Outside Admission double valve File 10J
Golsdorf Outside Admission File 10J
Kitson Outside Admission File 10J
Gresley  3 Cylinder Inside Admission File 10K
Bulleid  3 Cylinder Outside Admission File 10K
Southern Variable Lead Inside Admission File 10K
Hagans Swivel Frame   File 10K
Lentz 4 Cylinder Compound Poppet Valve File 10K
Aspinal Outside Admission File 10L
Skinner Uniflow 2 Cyl Poppet Valve File 10L
J M G Outside Admission File 10L
Crellin Outside Admission File 10L
Sissons Outside Admission File 10M
Twining Inside Admission File 10M
Joy2 Outside Admission File 10M
Klose Articulated Outside Admission File 10M
Bremme Inside Admission File 10M
Walschaert Special   Ecc Drive Inside Admission File 10M
Joy1   Straight Link Outside Admission File 10M

 

The programs require Windows 95 or higher. The instructions at this time are limited and will be expanded in the future. The Windows programs were created using  Borland Delphi 5 Pro. Since some of these Windows programs are new, there are probably some bugs in them.

The programs are in Fourteen files, VALGR10.ZIP ,VALGR10A.ZIP to
VALGR10M.ZIP.  The total programs expand to about 42 MB. To use, create a folder on your hard drive and download the  ZIP files into the folder. From inside the folder use an UNZIP program to unzip the files. Windows XP will unzip. To start the program use VGSTART.EXE. Or make a short cut to VGSTART.EXE and place the short cut on the desk top.


Download Windows Valve Gear Programs File 10,   0.42 MB,  Version 2.7.3

Download Windows Valve Gear Programs File 10A,  1.27 MB,  Version 2.7.3

Download Windows Valve Gear Programs File 10B,   1.26 MB,  Version 2.7.3

Download Windows Valve Gear Programs File 10C,   1.25 MB,  Version 2.7.3

Download Windows Valve Gear Programs File 10D,   1.28 MB,  Version 2.7.3

Download Windows Valve Gear Programs File 10E,   1.33 MB,  Version 2.7.3

Download Windows Valve Gear Programs File 10F,   1.29 MB,  Version 2.7.3

 Download Windows Valve Gear Programs File 10G,   1.29 MB,  Version 2.7.3

DownLoad Windows Valve Gear Programs File 10H,   1.25 MB,  Version 2.7.3

DownLoad Windows Valve Gear Programs File 10I,   1.24 MB,  Version 2.7.3

DownLoad Windows Valve Gear Programs File 10J,   1.27 MB,  Version 2.7.3

DownLoad Windows Valve Gear Programs File 10K,   1.50 MB,  Version 2.7.3

DownLoad Windows Valve Gear Programs File 10L,   1.30 MB,  Version 2.7.3

DownLoad Windows Valve Gear Programs File 10M,   2.52 MB,  Version 2.7.3

Created Site Nov 10 2000

Windows UpDating
Jun 18 2004   Added Western River Steamboat Calif. CutOff.
Jun 21 2004  -2.6- Added a visual ERROR indicator. Added Error.wav for error sound in place of the Windows Beep. Some times the Windows Beep would not sound.
Dec  8 2004  -2.6- Added Helmholtz Outside Admission.  Added A.J.Stevens 1882 that was on
CPRR 237 El Gobernador  4-10-0.  Modified main menu.
May 10 2005 Added Golsdorf Outside Admission.
Jun    6  2005 -2.6.3  Added Kitson.
July 18 2005  Added Gresley.
Sep 28 2005  Added Bulleid.
Oct  5 2005  No longer support MSDos versions.
Oct 5 2005   Down loadable files are in ZIP format. No longer supplied as self executable files.
Oct 5 2005  -2.7.
Jan 28 2006 Added Southern Variable Lead.
Feb 28 2006 Added Hagans Swivel Frame.
Mar 29 2006 Added Lentz 4 Cylindeer Compound.
Sep 20 2006 Added Aspinal.
Nov 2 2006 Added Skinner.
Apr 4 2007 More title information to Frame and Cylinder Dim.
Apr 6 2007 Added J M G.
Apr 7 2007 Added Crellin.
Apr 10 2007  -2.7.1.
Apr 16 2007 Added Sissons.
Jul 12 2007 Added Twining.
Jul 16 2007 Fixed error of lap and exhaust data in Sine and Oval diagrams that used inside admission cylinders.
Jul 27 2007 Added more data to most Steam Diagrams.
Jul 29 2007 -2.7.2.
Nov 27 2007 Added Joy2 Outside Admission.
Dec 12 2007 Added ReverseArmNorm/Max paragraph to instructions.
Feb  1 2008 Added Klose Articuilated.
Mar 15 2008 Added Bremme Inside Admission.
Mar 15 2008 Added Walschaert Inside Adm  Special.
Mar 15 2008 Added Joy1 Outside Adm Straight Link.
Mar 15 2008  Fixed Joy2 Outside Adm.     Was corrupt.
May 31 2008 Changed some labeling on some of the Sine and Oval diagrams.

Valve Gear on the Computer has been placed in the public domain
 by the author and it is not to be sold.     Charles J Dockstader