Improvements in Apparatus for Rolling or Welding Tubes, and the like.

Реферат: 264. Lambert, G. A., and Cardozo, H. A. Jan. 5. Rolling; welding. -A mill for rolling or welding tubes and the like is shown in Fig. 2. Four or other suitable number of rolls g are loosely mounted on journals g<1> carried by a frame c adapted to rotate on a shaft a. Two sets of rolls are arranged on shafts a, b so that the spirally - m o v i n g mandrel i can force the work between the rolls, which successively act on the work.