Instruction book on ring spinning

by Francis L. Lincoln

DRAUGHT FOR YARN.

31. To know the draught for any number of yarn. Write the number you are spinning or want to spin, add two ciphers to it; divide that by the hank roving that you are spinning from, to get draught. Example; hank roving 225, No. yarn 18. Add two ciphers, (1800); divided by 225 gives 8 draught.