The lever type differentialadjustment can be made by hand or by foot to make the operation simply and freely. it is capable for sewing various flexible fabrics.
杠杆式差动调节，即可手动又可脚动，使操作变的简单自如，最适合伸缩面料的各种缝制要求。
2
In this paper, the adjustment parameters of universal rolling disk in gear grinding machine, such as generating length, eccentric distance of generating and differential crank disk are calculated.