The mechanism is based on four-bar double-swing linkage ACDB which is driven by crank 2 through intermediate link 10. When crank 2 rotates about fixed axis 0, levers 3 and 9 oscillate about fixed axes A and B. The ribbon slides along guide 1. Then it passes through component 7 of link CD and is laid on platform 5. By means of weight 4, mounted on the extension of segment gear 8 which meshes with rack 6, platform 5 can be set at the required height.
$899$LW,FD$