der 8 in. wide and costing £88. in-cluding £r^ for fixing, replaced a double leather 22 in.wide. The quotation for the latter at the time of thereplacement was about £139. Four ropes 2 in. diameterwould prove .superior to the estimated power at £42,including fixing, or less than one-half the cost… … Fig. 2. at 220 revolutions per minute. The peripheral velo-city was thus increased by about 20 per cent, andpower in about the same proportion. Under the improved conditions considerably moreduty might have been imposed upon foiu- ropes 1%in. diameter at a cost including fixing of £11. Thecharge…
Textile fabrics · Textile industry
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