A. It varies directly as the speed. A given belt will transmit twice the horse-power if its speed is doubled within limits.
Q. Is the capacity of a belt affected by its width?
A. Yes, the capacity varies directly as the width. If a two inch belt will transmit one horse-power, two such belts will transmit two horse power; and this is true whether they are run separately or joined into a four inch belt.
To preserve cotton or Gandy belting, apply with a brush a little common paint to pulley side of belt while running, to be followed shortly afterwards by a little soft oil or grease to preserve its flexibility.
If the edges of the belt become frayed from the use of belt guides or forks, the loose threads may be cut off without injury to the belt.
If the belt slips at first, consequent to the surface being ruffled by unrolling, apply a little grease, oil or soap to the pulley side to make it grip.
Armington & Sims High Speed Engine.