. Railroad digest . rt C resting on it. C is attached to the lower face of thecylinder saddle, and its lower face rests on B. The faces of B and C are inclined from the sides towaids the centre line L) atan angle of 1 in lU. The plate B has a flange around it, ; sufficient cheap oil is kept in it to submerge the facesof B and C. When the forward wheels of the truck pass on to a curve,plate B is, of course, carried in the direction of the curve, andC therefore slides from its central position upward on the in-cline and so allows the truck to adjust itself to the curve. Thefaces of B an
. Railroad digest . rt C resting on it. C is attached to the lower face of thecylinder saddle, and its lower face rests on B. The faces of B and C are inclined from the sides towaids the centre line L) atan angle of 1 in lU. The plate B has a flange around it, ; sufficient cheap oil is kept in it to submerge the facesof B and C. When the forward wheels of the truck pass on to a curve,plate B is, of course, carried in the direction of the curve, andC therefore slides from its central position upward on the in-cline and so allows the truck to adjust itself to the curve. Thefaces of B and C are inclined only enough to cause the truckto assume its central position practically of its own accord onagain passing to a straight track, at the same time it offers butslight resistance to the lateral movement of the truck whenadjusting itself to the curves. The pin A is slightly behind therear axle of the truck. When the front wheels of the truck,in following the curve, move towards E. for instance, the rear. \-heels then become the pivotal point of the truck in ad-justing itself on the curve. The frame (front of the engine) is however guided by the pinA. The centre line of the engine if extended forward wouldpass through H, and that of the curve through I, but the pin A-which, as mentioned, guides the front end of the engine, passesalong the centre line of the curve, allowing the drivers to prac-tically assume the position on the curve that they would dowithout the influence of a truck. A radius line extended fromthe centre of the curve, would theoretically at least, passthrough the centre of the middle driving axle, but as the guid-ing point is at A, the engine would, of course, be steadied atthat point, and the drivers would be less liable to the side swingthat six-ch-iver engines have without a truck.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
