Continuous cord roll up blindAnthony Torti
Shu-Qing, Liu et al., Old spinal cord injury treated by pulsed electric stimulation, General Hospital of Beijing Command, Beijing, 5 pages (full article in Chinese; abstract on last page) Dec. 6, 1990. Siegel, RJ et al., Clinical demonstration that catheter-delivered ultrasound energy reve...
This continuous cord roll up window blind has an endless cord that engages and causes a sprocket to rotate. The sprocket in turn causes a take up spool to rotate. When the take up spool rotates, a take up cord, which is wrapped around the window covering material, either wraps around or...