American School of Correspondence · Chicago, American school of correspondence · leaf 196
This will require a draft gear of 55 teeth which is shown onthe plan of the gearing. Rule 2. To find the production of the machine: Multiplytogether the revolutions of the calender roll per minute (60), thecircumference of the calender roll (15.70), the weight of the lapin grains per yard (272) and… … Fig. 110. Plan of Sliver Lap Machine. From this amount should be deducted about ten per cent for timelost in doffing. An examination of the gearing will show that on the drivingshaft is a pinion of 29 teeth which drives the calender roll gear of72 teeth. The driving pulleys thus make 2.48…
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