. Automotive industries . he safety oflight cars is the arrangement of the spring hanger of thefront spring. With the usual arrangement of frontsprings the axle is attached to the frame only by thefront part of the spring. A considerable number ofsprings broke, and if the fracture was between the axleand the front spring horn there was nothing to hold theaxle except the rear shackle. In the earlier days of motor cars the shackle was intension, being hung from a bracket as shown in Fig. 1,following carriage practice. Later, however, the shacklewas generally put in compression (See Fig. 2) as ab
. Automotive industries . he safety oflight cars is the arrangement of the spring hanger of thefront spring. With the usual arrangement of frontsprings the axle is attached to the frame only by thefront part of the spring. A considerable number ofsprings broke, and if the fracture was between the axleand the front spring horn there was nothing to hold theaxle except the rear shackle. In the earlier days of motor cars the shackle was intension, being hung from a bracket as shown in Fig. 1,following carriage practice. Later, however, the shacklewas generally put in compression (See Fig. 2) as abracket is saved and the appearance is neater. In case the front spring breaks in front of the axle,the construction shown in Fig. 1 is in stable equilibriumwhile that in Fig. 2 is not. Further, in the first casethe motion backwards is limited, while in the second thelink may swing back to the position shown in dottedlines. In the latter case the motion of the axle is con-siderable, and the car frequently gets quite out of. control. The result of this, in France, was a number ofvery serious accidents owing to the cars running off theroad at speed. In order to avoid these a short length ofbelting was fixed under the spring at the spring seat andattached at the front in such a way as to prevent theaxle going back in case of the spring breaking. Whilethis belting was the usual method of securing the axlein the service there are neater ways of doing it. Figs. 3 and 4 show two methods which were tried andfound effective. In Fig. 3 two short lengths of angleiron bolted to the shackle formed stops so that in caseof the spring breaking the motion of the shackle waslimited. This proved effective and was easily adapted tothe spring shackles of some cars.| It was very cheapand easy to apply, requiring only two pieces of angleiron about 2 in. long, and one bolt for each front springshackle. Fig. 4 illustrates another arrangement, which wasalso very effective and not expensive. In this case
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
