The Blackburn count, in which the number of beers in 45 inches was the basis. The beer, as above, being 20 dents, representing 40 ends in a beer.
The Preston count was based on the number of beers in different widths.
The 6-4 count was based on the number of beers of 20 dents—representing 40 ends—in 58 inches.
The 9-8’s count was based on the number of beers in 44 inches.
The 4-4’s count was based on the beers in 39 inches.
The 7-8’s count was based on the beers in 34 inches.
The Scotch system is based on the number of dents in 37 inches. Thus in a 2000 reed there will be 2000 dents in 37 inches, representing 4000 ends in that space.
The Bradford system is based on the number of beers of 40 ends in 36 inches. If there are 50 times 40 ends in 36 inches, it is a “50 sett.”
To find the number of ends per inch in a given sett, it is necessary to multiply the sett by 40 and divide by 36, thus—
50 sett × 4036 = 552036 ends per inch.