03-26-2009, 02:58 PM
post 7
The Revell 0-6-0t Omaha. Revell like Marx made this locomotive with a headlight and smoke. It also had a device to make a chugging sound. The center axel has a cam added to it so that it provides a high spot every rotation. This cams high spot comes in contact with a lever that is part of hollow cylinder that has some bb's in it making it a rattle. This cylinder is mounted on a shaft. The cylinder can slide foward and aft on this shaft. The Cylinder is kept centered on ths shaft by springs on both sides that keep it centered. The cam moves catching the lever moving it from center against the pressure of the spring. The cam moves out of contact with the lever releasing the cylinder. The cylinder snaps back to center rattiling the bb's, making a chug sound. And walla, every rotation either in foward or reverse causes the cylinder to make a chug sound.
frank
The Revell 0-6-0t Omaha. Revell like Marx made this locomotive with a headlight and smoke. It also had a device to make a chugging sound. The center axel has a cam added to it so that it provides a high spot every rotation. This cams high spot comes in contact with a lever that is part of hollow cylinder that has some bb's in it making it a rattle. This cylinder is mounted on a shaft. The cylinder can slide foward and aft on this shaft. The Cylinder is kept centered on ths shaft by springs on both sides that keep it centered. The cam moves catching the lever moving it from center against the pressure of the spring. The cam moves out of contact with the lever releasing the cylinder. The cylinder snaps back to center rattiling the bb's, making a chug sound. And walla, every rotation either in foward or reverse causes the cylinder to make a chug sound.
frank
" It's a Heck of a Day " !!!!