If a beam has 2200 ends, the counts being 40’s, and the weight 50 lbs., find the length.
By multiplying 40 by 840 the yards in 1 lb. are obtained, and multiplying this by 50, the yards of yarn on the beam are arrived at. If this is divided by the ends in the warp, the result will be the length of warp thus:—
40 × 840 × 502200 = 763·6 yards.
A simple method of mentally calculating the number of hanks in a piece is as follows:—
A warp 84 yards long will contain just one-tenth as many hanks as ends. Thus a warp of 2000 ends, 84 yards long, contains 200 hanks. This can be proved as follows:—
2000 × 84840 = 200 hanks.
The number of hanks in a warp 84 yards long can thus be seen at once, and it is a very simple matter to mentally calculate the difference for any other length.
The hanks of weft can also be calculated mentally in a similar manner.
If the piece is 84 yards, the counts multiplied by the width and divided by 10 will give the number of hanks required for 84 yards. Thus, find the hanks of weft in a piece 34 inches wide, 84 yards long, 60 picks per inch.