137 (#191) ############################################ WOOLLEN YARN SPINNING Counts Inclination from vertical Pitch Size Bobbin or Cap. 5 skeins to 10 skeins Io skeins to 25 skeins 25 skeins to 50 skeins 12° 14° 3 in. 21 Up to 9 in. long 78 6 > 9 16° 2 Standard conditions indicating the inclination and setting of the spindles for woollen and worsted mules are set out in Fig. 43, and in Fig. 44 the three spindle inclinations of 8°, 16° and 32° to the vertical are shown from which the "slipping over ” and quick periodic “tug” during spindle-drafting following the rotation of the spindle will be realized. 2. The mule should be arranged to spin either from condenser bobbins or from slubbing bobbins, condenser and mule pitch of rollers being the same ; and possibly in some cases a creel for doubling, roving, and re-spinning may be advisable ; 3. Speeding-up may be effected by arranging for three different speeds on the mule ; or if two speeds only are employed the double-speed may be brought into action before the carriage reaches the extremity of its draw; 4. Increased production may be obtained by holding the carriage out at its extreme traverse and delivering additional condensed sliver by brief rotation of the delivery rollers to compensate for the take-up in twisting : 5. Perfect control of the delivery of the condensed sliver throughout the carriage movement in place of the definite delivery and stoppage 137
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