| 摘要 |
1463541 Engraving DR-ING RUDOLF HELL GmbH 12 July 1974 [16 July 1973] 31076/74 Heading B6J [Also in Division H4] A printing cylinder is engraved by tool 15, which responds to signals applied to coil 5, and oscillatory excursions of shaft 6 are limited by a damper 9 comprising a stationary support with an annular surface coaxial with the shaft and damping means arranged symmetrically about the shaft and connected between the shaft and the annular surface. The damping means may consist of cuboid or segmental bodies or of at least one ring, and may be made from a homogeneous, elastically deformable solid material. |
