. Cassier's magazine . FIG. 12. ENGINES OF STANHILL MILL. BY YATES & THOM, BLACKBURN DRIVING OF COTTON MILLS 309. FIG. 13. SPECIAL STEAM DASHPOT GEAR FOR VARIABLE LOADS. HICK. HARGREAVES & CO., LTD., BOLTON for all the machinery to be five counts the number of mulespindles may be 70 per indicatedhorse-power for 136s and 54 forring spindles on 50s or 6os. Gener-ally, for equal counts the power todrive a given number of ringspindles, and preparation will exceedby 20 per cent, that necessary foran equal number of mule spindles,partly because mules require less driving than ring frames
. Cassier's magazine . FIG. 12. ENGINES OF STANHILL MILL. BY YATES & THOM, BLACKBURN DRIVING OF COTTON MILLS 309. FIG. 13. SPECIAL STEAM DASHPOT GEAR FOR VARIABLE LOADS. HICK. HARGREAVES & CO., LTD., BOLTON for all the machinery to be five counts the number of mulespindles may be 70 per indicatedhorse-power for 136s and 54 forring spindles on 50s or 6os. Gener-ally, for equal counts the power todrive a given number of ringspindles, and preparation will exceedby 20 per cent, that necessary foran equal number of mule spindles,partly because mules require less driving than ring frames and partlybecause the ring frame has a largersupport for spindle and requiresmore preparatory machinery. Whatever the size of a factory it isequally important in all that the turn-ing effort should be steady, and themodern tendency in some cases hasbeen in the direction of higher speedsof rotation and of the use of three- crank The tripe-expansion 3io CASSIERS MAGAZINE engine has lent itself to the three-crank type, but otherwise there is noeconomy in the triple engine in com-parison with the compound en
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