. Automotive industries . laminated springs, the dimensions being roughly11 in. in width by 4 ft. in length. Each skid is cut awayin the center so as to allow the wheel to pass throughto a depth of about 1% in., so that on a hard surface theweight is taken on the. pneumatic tires, and the skidsonly come into play when the tire has bedded in the snowto this extent. The skids are carried in brackets from thesteering pivot and are free to swing to a certain extent,so if an obstacle is struck the skid swings up before it,and its flexible construction enables it to absorb theshock. The front spring
. Automotive industries . laminated springs, the dimensions being roughly11 in. in width by 4 ft. in length. Each skid is cut awayin the center so as to allow the wheel to pass throughto a depth of about 1% in., so that on a hard surface theweight is taken on the. pneumatic tires, and the skidsonly come into play when the tire has bedded in the snowto this extent. The skids are carried in brackets from thesteering pivot and are free to swing to a certain extent,so if an obstacle is struck the skid swings up before it,and its flexible construction enables it to absorb theshock. The front springs of the caV are maintained. Two of the Citroens equipped with the Kegresse ap-pliance had the normal gear ratio of 4% to 1. The thirdmachine had an additional reduction gear fitted, giving atotal reduction of 9 to 1. All three machines operatedover the snow, but the low gear reduction one was moresuitable for work on the mountain side. The machineswere brought down 63 per cent gradients and climbed22 per cent Kegresse mottti ileigh Detail of tli track-laying mechanism March SI. 1921 AUTOMOTIVE INDUSTRIES THE AUTOMOBILE 70i> Influence of Nickel on Cast Iron Best results obtained with alloy containing 1 per cent nickel, the increasein compressive and transverse strength amounting to 30 per cent, whiletensile strength increases 25 per cent and the hardness 18 per cent. Effectof cobalt reverse of that with nickel, except in respect to hardness. THE use of alloy steels has assumed great importanceduring recent years, and their properties have beenthe subject of numerous researches. The same doesnot apply to the alloys which may be obtained with castiron. About all that can be found on this subject in theliterature of the industries is a few general studies on theinfluence of titanium and vanadium on the properties ofcast iron. The influence of nickel it appears has never beeninvestigated, notwithstanding the fact that this metal haslong been used in the manufacture o
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
