| 摘要 |
PCT No. PCT/GB95/02552 Sec. 371 Date Apr. 23, 1997 Sec. 102(e) Date Apr. 23, 1997 PCT Filed Oct. 31, 1995 PCT Pub. No. WO96/13816 PCT Pub. Date May 9, 1996A drive assembly is constituted by a strip (10) and three or more parallel and rotatable supports (12, 16, 22) around which the strip (10) is wrapped. At least two of the rotatable supports (22) are linked together for common movement, for example by a movable holder in the form of a light box (20) carrying a series of light bulbs (50) while at least one of the rotatable supports (12, 16) is stationary.
|
