The shrill toot of the little whistle which commanded the engineer to stop motion became a throb in a sore tooth to Jim.
That power which acts upon a body, either tending to create, or to stop motion.
A breakage of the yarn allows this spring to act; contact is made, and the stop motion operates as before.
Usually, the point emphasised in the pictures bought is the shutters' ability to "stop motion" at their high speeds.
This stop motion consists of a pulley suspended by a rod, and riding on the belt which supports its weight.
At a is the slot for receiving the arm from the speeder and from the stop motion.
Double exposure, double printing, and the stop motion are the most common methods of obtaining 212 these marvellous results.
The safety stop or stop motion is shown on the right, Fig. 3320.