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 423
The Modern Gas Tractor owning and operating a gas tractor state that theweekly expense when using six horses on the road machinehas been $84.00 per week (including two-horse teamhire at the rate of $4.00 each per day). They state thatwhen operating the scraper by means o^ the tractorthey accomplish… … Fig. 187.—Special Wagon Adapted to be Used in Train Hauledby Gas Tractor. of the cost for an equal amount of work, the hire ofone additional team should be added, in which casethe saving effected by the tractor is $72.00 per week.These figures cover the total cost of the work basedon actual working…
Farm engines · Internal combustion engines
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