Cotton mill processes and calculations. An elementary text book for the use of textile schools and for home study (1899)
Tompkins, Daniel Augustus, 1851-1914 · Charlotte, N.C., The author · leaf 68
58 SHELL ROLLS. 51. Leather covered top rolls, as described in (50) may beeither solid, as at C, Fig. 12 or shell, (or loose boss)as at D. Solid rolls are cheaper, and are supplied by themakers, unless otherwise specified. Shell rolls are some-times used for all lines of top rolls, but more…
Cotton growing · Cotton manufacture
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