ENGLISH WEIGHTS AND MEASURES OF COTTON YARN.
24 Grains = l Pennyweight (Dwt. Troy).
437.5 Grains = 1 Ounce (Avoirdupois).
16 oz. = 7,000 Grains = l Pound (Avoirdupois).
1-1/2 Yards = 54 in. = 1 thread or circumference of Cotton Reel.
120 Yards = 80 threads = l Skein.
840 Yards = 560 threads = 7 skeins = 1 Hank.
The number of Hanks in 1 lb. is the number of the yarn.
7,000 grains (1 lb.) divided by the weight in grains of 1 Hank (840 Yards) = the number of yarn.
It is unnecessary and inconvenient to measure and weigh a full hank, and a lesser number of yards are usually taken. 120 yards for yarn, and 12 yards for Roving are common, and the Dividends for these are given in the following table.
DIVIDEND TABLE
| Yards | Dividends |
| 1 | 8.33 |
| 2 | 16.66 |
| 3 | 25.00 |
| 4 | 33.33 |
| 5 | 41.66 |
| 6 | 50.00 |
| 7 | 58.33 |
| 8 | 66.66 |
| 9 | 75.00 |
| 10 | 83.33 |
| 12 | 100.00 |
| 30 | 250.00 |
| 60 | 500.00 |
| 120 | 1000.00 |
| 840 | 7600.00 |
RULES
Divide 7,000 (Grains in 1 lb.) by 840 (yards in 1 Hank) = dividend for 1 yd., 8.33.
Dividend/by weight in grains = Hank.
Dividend/by Hank = Weight in Grains.
EXAMPLES—If 1 yard of Card Sliver weighs 55 Grains, what Hank is it? Divide the dividend for 1 yard (8.33) by 55 = .151 Hank.
What should 120 yds. of No. 25s yarn weigh? Divide the dividend for 120 yards (1,000) by 25 = 40 grains.