The modern gas tractor, its construction, utility, operation and repair: a practical treatise defining every branch of up-to-date gas tractor engineering, driving and maintenance in a non-technical manner. Considers fully all types of power plants and their components, methods of drive and speed changing mechanisms. Describes design and construction as well as practical application of tractors in the field (1919)
Pagé, Victor Wilfred, 1885-1947 · New York : Scientific American Pub. Co. · leaf 307
shown in section at Fig. 125. Thisconsists of a casting pierced with a number of holesthrough which the spokes extend to the rim. Thishub is of steel and is lined with a bushing of bronzewhich is interposed between it and the steel shaft andwell lubricated to take the wear. It is kept from… … Fig. 125.—Cross Section of Hart-Parr Rear Hub ShowingWheel Bearing and Method of Lubrication. In order to secure greater traction on soft groundthan would be obtainable with a smooth steel tire theouter rims of the traction wheels are always providedwith a series of projecting lugs or points which…
Farm engines · Internal combustion engines
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