. The Saturday evening post. sand artisans—among the latter a largeproportion of people who already knewneedle trades. They also came here foreconomic freedom—to escape taxation,landlordism and crowding at home, and tomake money. Landing in New York, handicapped bylanguage, isolated from Americans andtypical American industries, their energywas directed to the garment trades. With (Concluded on Page 153) THE SATURDAY EVENING POST 151 The load on a moving truckseldom pushes down evenly acrossthe whole width of the axles. The illustration with the perpen-dicular plumb line crudely showshow the c
. The Saturday evening post. sand artisans—among the latter a largeproportion of people who already knewneedle trades. They also came here foreconomic freedom—to escape taxation,landlordism and crowding at home, and tomake money. Landing in New York, handicapped bylanguage, isolated from Americans andtypical American industries, their energywas directed to the garment trades. With (Concluded on Page 153) THE SATURDAY EVENING POST 151 The load on a moving truckseldom pushes down evenly acrossthe whole width of the axles. The illustration with the perpen-dicular plumb line crudely showshow the center of the weight hasshifted from the center of the axlenearly to the end of the axle be-cause the truck is on a sloping road. There are many other elementsto cause this shifting of the brings five times morestress upon parts of the axle thanthe ordinary weight of the corners at high speedmomentarily slews the weight outof line, lifts it from one side of theaxle and throws it to the The Plumb LineShows What Happens That is why the two insidewheels will lift from the ground ifa car is driven around the cornerat an excessive speed. This shifting weight, the sidestrains and stresses encountered byall axles on commercial trucks havebeen studied in the designing andbuilding of Sheldon Axles. Theyare built on the same principleused by locomotive and freight caraxle makers—widely spread bear-ings and wheels rigidly fixed tothe revolving axle. Sheldon Axlesare worm-gear driven with ballbearings that never need adjust-ment. Made for trucks from ]/2 to5-ton capacities. When you see a truck withthese torpedo-shaped hubcaps and double anchortrade mark—it has Shel-don Axles. SHELDON AXLE AND SPRING COMPANY, Wilkes-Barre, Pa. Manufacturers of Sheldon Axles for Motor Trucksand Sheldon Springs for Trucks and Automobiles
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