Spur and bevel gearing; a treatise on the principles, dimensions, calculation, design and strength of spur and bevel gearing, together with chapters on special tooth forms and methods of cutting gear teeth (1914)
New York, The Industrial press; [etc., etc.] · leaf 205
enty-four hours from the start to bring themup to a carbonizing heat. On the other hand, there is no delaywhatever in getting the required heat with oil or gas, and wherethere is not sufficient work to keep a furnace running continu-ously, the oil or gas furnace would undoubtedly prove the… … MACHINING AND HEAT-TREATMENT 191 objection to the use of oil or gas for carbonizing gears is thatfurnaces of this kind require constant attendance when run afterworking hours and that extra power is needed for air pressurein the burners. There is always the danger of an interruptedflow of the gas…
Gearing
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