. Automotive industries . en out concerning the steelare based entirely upon shop production, and not uponthose compiled under ideal conditions by different so-cieties and organizations. This feature is unique in thatit tells the absolute facts about the springs. On theshort leaf of each spring is stamped the date of manu-facture and the key number which refers to the heattreatment. In case of trouble, this enables the engineersand metallurgists to make an accurate and intelligentanalysis. Proceeding with the first step in spring making, thelong strips of steel are taken from the storage bins
. Automotive industries . en out concerning the steelare based entirely upon shop production, and not uponthose compiled under ideal conditions by different so-cieties and organizations. This feature is unique in thatit tells the absolute facts about the springs. On theshort leaf of each spring is stamped the date of manu-facture and the key number which refers to the heattreatment. In case of trouble, this enables the engineersand metallurgists to make an accurate and intelligentanalysis. Proceeding with the first step in spring making, thelong strips of steel are taken from the storage bins bythe traveling crane and deposited directly upon theshearing tables where they are cut to the desired varying length of the bars is carefully watched sothat there is a minimum of waste. This item has beenso closely figured that the present total loss of metalis less than 5 per cent for the entire production. From the shears, the plates from which the main March 3, 1921 AUTOMOTIVE INDUSTRIES THE AUTOMOBILE 507. ntroUing pyrometers are locked inThe McCann-Harri8on walking beam 10,000 tons of pring iteel are carried in storage bins. -J Electric•glass cases and guard thi constancy of the temperatures of the furnaces,type, gas fired tempering furnace. The output of thes\ tempering furnaces controls ike speed of production of the plant. -1—7//, machine, d< igned by the plant engii ■ in the spring industry; it forms the cambei in <«./ leaves and tempers the leaves in an oil bath. 5 TJie McKenzie three-operation eye machine. First,thtend of the white-hut plate is shaved and bent; second, the loop of the eye is made; third, tht entin platt is aligm d by 11< an i of special gages 508 AUTOMOTIVE INDUSTRIES THE AUTOMOBILE -Match 3, 19-21
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
