| 摘要 |
1,260,773. Suspending curtains. RILOGAWERK JULIUS SCHMIDT. July 17, 1970 [July 18, 1969], No.34854/70. Heading A4B. A curtain suspension device comprises an upper member and a lower member, means for securing them together, an electric motor to drive a pulley arrangement which by means of draw cords can effect opening and closing movement of curtains supported on the device, the electric motor being mounted either on the upper member or the lower member, the two members together defining an enclosed space to accomodate the pulley arrangement. The two members may define gaps between their edge which form the trackways for suspending the curtains. The pulley arrangement may include gear wheels, and a cord-tensing device. The cord-drive pulley may have a part thereof forming cord-engaging surfaces of wear-resistant resilient plastics material. Trip members, such as micro-switches may be positioned so as to shut off the motor at the limits of motion of the curtains. |
