MODEL TRACTION ENGINE

Mr. Arndt's letter

See Mr. Arndt's letter.

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Noel, Missouri

This is a 1/26 scale model of the 25 H.P. Wood Brothers traction engine with special coal bunker and water tank, and all parts were hand made from scrap flat material. It is nine inches long, weighs 23 ounces and has a self-contained power plant for traction and belt power.

The front and rear wheel hubs were moulded from printers type lead and finished on a jewelers lathe. The wheel bands and spokes were drilled in the flat, then formed into shape and assembled with optical screws. The wheel cleats were riveted to the wheel band with hand made rivets.

The boiler is the dry bottom type and riveted construction. The boiler barrel or longitudinal tube is 1 outside diameter.

The connecting rod has split bearings and adjustable taper wedges. The band wheel was made from two pieces of metal. The hub and spokes from one piece, the band was made from a flat piece of metal formed into the round then welded and fastened to the spokes with optical screws, then finished on a jewelers lathe.

The bull gears, disc wheel, crosshead, worm gear and all bearings were hand made with a jewelers saw, file and lathe. The teeth in the bull gears were cut by hand with a jewelers saw and file.

Working only a few minutes at a time, it required about eighteen months to make this little engine. It is needless to say that I am very proud of it.