Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
A pin gear has a toothed wheel installed on the driving shaft, a pinwheel, this has a rim with cylindrical openings and is installed on the driven shaft, and pins arranged as cylinder springs. At that the toothed wheel is placed inside the pinwheel.
Chain drive system comprises drive wheel which has cylindrical recess at its center and driven wheel fitted into recess with recesses around its edge forming fluid-filled chambers producing damping effect when drive operates