| November/December 1969

  • Bryan light steam tractor
    Bryan light steam tractor, boiler and engine. This is a copy taken from a magazine.
  • Steam Tractor
    This picture has no courtesy line it was found in some of my Lost In The Files pictures, but I thought it would fit in well with Mr. Somerville's article. It did have this information on the back ''Bryan Steam Tractor - number 55, new in 1925, cost $2500.

  • Bryan light steam tractor
  • Steam Tractor

12498 14th Ave. N. Haney, B.C., Canada

The Bryan light steam tractor was made about 1920, until depression days in 1933 when lots of good companies folded up.

This tractor was made by the Bryan Harvester Company, Peru, Indiana and sold for about $2000. which was a good price in those days. It had outstanding qualities not possessed by the conventional traction engine and by the gasoline tractor.

It could be steamed up in about 20 minutes, did not have to have 1 or 2 teams hauling water, nor a fireman to be firing it with straw. Its fuel was kerosene or distillate and being a condensing type of steam engine, the water was used over and over again. The engine was a 2 cylinder, simple double acting one with piston valves of Shepheson and reversing gear. The speed of the engine was about 220 r.p.m. and the bore was 4 inches and the stroke 5 inches. It had few working parts and was enclosed against dust and dirt. Lubrication was by means of Madison Kipp force feed pump. The crankshaft operated in roller bearings.

The boiler was a water tube type. It had interchangeable tubes, had no shell and no stay bolts or crown sheet to get hot or crack. Each tube was removable, independent of all others. It had a steam pressure of 600 psi. automatically controlled. Before reaching the cylinders, the steam was superheaded to 750 degrees. The boiler was the 3' drum-type.

The fuel burner was the vaporizing type. A pilot light was used to ignite the main burner. A double acting water pump was used. After the steam had done its work in the cylinders, it was passed through a radiator type condenser assisted by a fan and turned back to warm water and returned to the water tank to do its work again. In this way, very little water was lost through evaporation.


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