36. To get the twist pulley for another number of yarn. See what twist the pulley gives that you have on, and multiply the twist that you have in, by the pulley that is on, and divide that product by the twist you would like to put in to get the pulley required.
TWIST OF YARN.
37. To know how to get the exact twist in yarn. Have your roll belt tight, and band also. Count the revolutions of the spindle to the rollers once. Divide that by the circumference of the roll, which is 3-14/100 inches. Example. Say 86 turns to the rolls once. (3-14/100) 86.00 turns, (27-38/100) twists to the inch.
WEIGHT ON TOP ROLLS.
38. To know the weight on top rolls. You must measure the distance from where the stirrup is attached to the lever to where the wire is attached that holds the weight; then multiply the distance by whatever the weight weighs, and divide that product by the exact distance from where the lever is attached to the set screw, to where the stirrup is attached.
SQUARE ROOT TABLE FOR THE TWIST OF YARNS.
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