ROLLING TRAIN FOR THE DEEP PINNING ON THE SLEEPERS Russian patent published in 1995 - IPC

FIELD: wood-working industry. SUBSTANCE: rolling train has a conveyer feeding the sleepers, equipped with grippers and divided into two sections, one of them is of uninterrupted action and the other is of step-type. On the second section the grippers in each pair have different heights. The second section is disposed below the level of the first one at a distance not less than the height of the low gripper and is mounted relative to the end of the first one with the shifting backwards for the distance greater than the step between the grippers on it but less than two steps between the grippers of the conveyer section of uninterrupted action minus the sleeper width. The pinhole machine tools are mounted one another at a distance equal to that between the grippers of the second section of the conveyer multiplied by an uneven number. EFFECT: enhanced efficiency. 2 dwg