| 摘要 |
An angularly adjustable support includes a base and a cylindrical body having a longitudinal axis. The body is rotatable relative to the base about a pivot axis which is transverse to the longitudinal axis. The body has a circumferential sidewall with a track extending partially around the sidewall. A mounting is movable along the track to a selected angular position. A clamp secures the mounting in the selected angular position. |
