| 摘要 |
The invention concerns an orientable angular gear-type instrument for easy actuation of a transmission at an angle between 0 and 360 DEG . The instrument comprises two mutually rotating half-housings (1, 1'), rotation being facilitated by a bronze ring (2) the lower part of which is gripped by a ring (3). Sealing is effected by a joint (4). Each half-housing comprises a pinion (5, 6) mounted on ball bearings (7, 8, 9, 10). Linkage of the transmission is effected by a large crown (11) attached to a shaft (12) by a key (13) and a clip (14). Rotation is effected by the shaft (12) mounted on ball bearings (15, 16). The part (17) facilitates remounting of the shaft of the large crown. |
