British Railways Board

Robert Illingworth

Maurice G Pollard

A motorized vehicle truck having a pair of wheel sets each with a live axle and a motor mounted on each axle with its axis parallel to the associated axle. Each motor is secured to prevent its rotation about the respective axle, but since this permits substantially unrestrained horizontal movement of the motors relative to the truck, braces are employed in the form of at least one link which is connected between the respective motor casings and pivotally, resiliently mounted for rotation about a vertical axis positioned between the motor casings. In this way, a stiffness is provided through the motor casing to restrain parallel shear movement of one wheel set horizontally relative to the other.

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Allestree, United Kingdom

Robert Illingworth