clock with quadrant obtained from a slit shaped semicer - chios, carved on the upper part of a grid form use

摘要

in the watch, we have two quadrants; a and b, the quadrant is a circle whose upper part is open a fissure in the shape of a semicircle, which allows you to see the quadrant b below.with the base corresponding to the diameter of the quadrant to quadrant b is located a reading of the hours from left to right respectively from 1 o'clock at 12 o'clock.the length of the clock c of the hours, minutes and seconds of the clock will be double the normal clocks; example: the hand c will be one with the clock c1.in such a way that just disappeared from the quadrant b hand c, appears, at the same time, on the other hand c1.the operation of this watch is made possible by varying the movement of hands, filming in rate halved compared to a clock with the normal 12 hours.