The side rows of holes only are used for transmitting the message, the centre row being required for feeding forward the paper in the transmitter.
Deep holes in the ground, rimmed with black, pockmarked the shallow valley.
It consists in punching, by means of " a puncher," a series of holes in a strip of paper in such a way that, when the strip is sent through another instrument, called the " transmitter," the holes cause the circuit to be closed at the proper times and for the proper proportionate intervals for the message to be correctly printed by the receiving instrument or recorder.
The blades of the rotator are adjustable, being fitted into its tube or body by slits and holes and then soldered.
They sell 'em. So what do they do with the Cheerios' holes?
