Evening Republican, Volume 14, Number 192, Rensselaer, Jasper County, 13 August 1910 — The Six-Wheels Truck. [ARTICLE]

The Six-Wheels Truck.

Many American cars are carried on trucks which have three pairs of wheels. This construction almost entirely prevents the jolting in passing over the ends of rails which is so annoying when the old style of truck with four wheels is employed. When the front wheel of a four wheeled truck has passed the last of the cross ties which support the rail on which the wheel is rolling the end of the rail Is bent downward by the pressure exerted by the wheel, which is equal to about one-eighth of the weight of the car. Hence the wheel strikes violently against the end of the nekt rail, which is not correspondingly depressed. The front wheel of the six wheeled truck reaches the junction of the two rails before the middle wheel has passed the last cross tie, so that the middle and rear wheels rest on- the rigid part of the rail. In these conditions there is no tendeucy for the flexible portion to bend.