121 (#175) ############################################ WOOLLEN YARN SPINNING (P1) V1 x 20 x 3 = 1 sec. for completion of ist period of (PC) V6 X 4 draft; (P2) V2 x 20 x3 and 3•14 secs. for completion of ist and (P) VÕ x 4 2nd periods of draft; and (P) V5 x 20 x 3 = 15 secs. for completion of ist, 2nd, (P) VÕ X 4 3rd, 4th, 5th, 6th periods of draft; Illustrating this from the draft of 14-say 48 in. drafted to 72 in., then (P1) VI x 20 x 3 48 X 20 X 3 = 8.4 secs. for com- (PI) V iš 4 pletion of ist period of draft. (PI) Vī} x 20 x 3 X 86 X 20 X 3 = 15 secs. for com- (PI) VI} + 4 pletion of ist and 2nd periods of draft. 86 X 4 86 X 4 * * All the points raised in this section may be summarized as follows :- 1. To find the skeins to which any blend will spin : WF x 20) K² = skeins (drams per yard). . 2. To find the spindle-draft which any blend will reasonably stand : VI = draft I + 2 2a. To find the skeins to condense to Count of yarn required skeins of condensed sliver. VL I + 2 3. To find the drafting-twist angle to employ in spinning any given blend : 121