rare scientific instrument produced by Eliott Brothers Ltd of London that gives the optical effect of"" slow motion"" to objects moving at high speed. If the object under test executed a recurring movement, then it is possible to see the object as a stationary, or nearly so, by adjusting the time interval accordingly. It can make a governor operates between 50 and 125 rpm and thus, multiplying this gear ratio, can be calculated shutter speed. Rotoscoping was used to examine the operation of a machine operating at a known speed, and determine the speed variations. Paint the front cover is splintering otherwise in perfect working condition, original wooden box set A patented shutter controlled by a gear connected to a centrifugal governor. A winding rod engages under the lower handle for winding a spring. The speed gear is controlled by sliding gears 5 - coarse adjustments graduation infinite control by a centrifugal governor achieved balanced. Ashdown Rotoscoping acts to engage the human vision to zero speed relative to an object with recurrent movement. The shutter rotates at a precise speed that only allows the viewer to watch at times determined time intervals. If the object under test executed a recurring movement, then it is possible to see the object as a stationary, or nearly so, by adjusting the time interval accordingly. It can make the regulator to operate between 50 and 125 rpm and thus, multiplying this gear ratio, can be calculated shutter speed. It rotoscoping used in two ways: a) To examine the operation of a machine operating at a known rate and determining the speed variations. b) To measure the unknown speed of a machine, setting the Rotoscoping to operate at a much higher speed than that of the machine and reducing the rate of rotoscoping to achieve a stable image.
