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Antique Engine Database
Charles Williams Stores
The Williamsport air cooled engine made its debut in 1908. As with the water cooled engines, no data concerning the various sizes available ahd yet been secured. Cooling was effected by a large centrifual blower mounted directly to the engine crankshaft and visible behind the flywheel. Suitable piping carried the cooling air into a shroud beneath the cyllinder for even distribution. To futher enhance the cooling effect, Williamsport air cooled engines featured an auxiliary exhaust port. The company claimed that about 70% of the hot exhaust gases passed through the port, thus making the taks of cooling the engine much easier. After 1908 the Williamsport engine passed from view.
history
Beginning in 1916, the huge mailorder house of Charles Williams began offering the Maynard Jr. engine in a 1 1/2 horsepower model. Featuring a 3 1/4 x 4 1/2 inch bore and stroke, this little engine had a rated speed of 400 to 600 RPM and weighed in at 240 pounds. When mounted on skids the Maynard Jr. carried a 1916 retail price of $29.50. Other options included a portable style priced at $33.75 and a complete pumping outfit for $34.40. A microscopic nnotice in the catalog copy stated tha tthis engine could be “shipped from a factory in Pennsylvania”. Possibly then, actual manufacturing took place at the Jacobson works in Warren, Pennsylvania. Since this state had a large number of engine builders, the Author has determined to leave the question of origin to those with accurate data.
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