145 (#201) ############################################ WOOLLEN FRAME SPINNING stationary ring-plate and lifting spindle-rail (Fig. 46a), and the other with lifting ring-plate and stationary spindle-rail (Fig. 46). The pitch of spindles and rings is varied from 21 in. to 5 in. to suit the width of con- denser bobbins and the size of cop or bobbin required. Special attention should also be given to the limits and control of the false twist, which must be much less for thick yarns than for thin yarns. The following comparative results from cloths woven from yarns spun on the mule and upon Platt's frame are illuminative and should be carefully studied : Frame Spun Yarn. Mule Spun Yarn: 34 in. 34 in. 30 in. Width in loom Width in grey state Width in finished state Length in loom Length in grey state Length in finished state Weight in grey, state Weight in fin shed state Warp, strength in lb. (6f in. X 7 in.) Warp, elongation in inches Weft, strength in lb. (fin. x 7 in.) Weft, elongation in inches 31} in. / 311 in. 301 in. 20 yd. 20 yd. 151 yd. 17 yd. 151 yd. 161 yd. 78 lb. 64 lb. 65.6 59.9 1•73 7.69 597 50.6 1.85 1.69 73 lb. 63 lb. Note should be made that the cost per spindle of the frame is about three times that of the mule (pre-war rates ros. 6d. and 30s. respectively), but space for space, or spindle for spindle, there are often outweighing advantages for the frame as distinct from the mule. For some classes of woollen yarns the product of this frame is even preferred to that of the mule-yarn for yarn ; but for hosiery and certain special yarns the mule product is better. Before passing on it should perhaps be noted that the K. 145
3 4 Textile Machine
6 7 Textile Machine Part
9 10 Textile Machine Part
17 18 Textile Machine Part
20 21 Textile Machine Part
93 93 Textile Machine
96 97 Textile Machine
106 106 Textile Machine
109 109 Textile Machine
220 220 Textile Machine
228 228 Textile Machine
256 256 Textile Machine
27 27 Textile Machine Part
29 29 Textile Machine Part
50 50 Textile Machine Part
52 52 Textile Machine Part
43 45 Textile Machine Part
217 217 Textile Machine Part
241 241 Textile Machine Part
243 243 Textile Machine Part
251 251 Textile Machine
267 267 Textile Machine
275 275 Textile Machine
287 287 Textile Machine