American School of Correspondence · Chicago, American school of correspondence · leaf 111
16 _Example : = 4.2 Rule 6. To find the weight of lap being delivered, draftbeing known, multiply the number of laps on the apron by theweight per yard and divide the product by the draft. Eixample : • = lo. ^ 4.2 After the draft has been calculated, which in this case wehave found to be 4.2, the… … C a bnS The feed roll is 21 inches in diameter and has upon the enda spur gear of 12 teeth, which is driven from the evener roll by ajrear of 16 teeth. Compounded with this gear is one of 28 teeth. 96 COTTON SPINNING. 61 which is driven from the apron roll by a gear of 20 teeth. Onthe outer end of…
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