256 (#334) ############################################ WOOLLEN AND WORSTED SPINNING the full bobbins or the full bobbin spindle rails are transferred to doffing position out of fixed paths from spindles or lifter rods to receiving pegs placed in front of the frame; the empty bobbins or empty bobbin spindle rails are transferred to spinning position, from another set of pegs placed in front of the frame, to either spindles or lifter rods. For the first time in type 2(a) the rails both during spinning and doffing are worked on fixed slides from which it is impossible for them to deviate, the falling rail also balancing the rising rail during doffing. Mr. Newsholme claims to effect the doffing with five movements as against more than three times that number in the case of other frames; and it must certainly be conceded that a marked advance has been made in simplifying the machine. Cap frames do not lend themselves to mechanical doffing so effectively as flyer frames. Many attempts have been made to mechanically doff cap-spindle, and broadly the evolution has been similar to that observ- able in the case of the flyer frame. In applying the principle of Spindle Rail Doffing, type 2(a), Mr. Newsholme in the first type made construc- tion to include duplicate spindle rails, duplicate tubes and duplicate lifter plates. In the second type, the spindles are lowered out of the way, and duplicate rails (which are out of engagement during spinning) carry the duplicate set of tubes along fixed slides from spinning to doffing position and the reverse. In Fig. 73 the Arnold-Forster doffer is illustrated as being typical of the “individual spindle doffing type. In Fig. 74b the Aked-Prince-Smith Flyer doffer is > 256
26 26 Textile Machine Part
28 29 Textile Machine Part
31 32 Textile Machine Part
62 62 Textile Machine
65 65 Textile Machine Part
67 68 Textile Machine Part
224 224 Textile Machine Part
262 263 Textile Machine
279 281 Textile Machine
9 9 Textile Machine Part
13 15 Textile Machine Part
38 38 Textile Machine
41 41 Textile Machine Part
44 46 Textile Machine Part
130 130 Textile Machine
148 149 Textile Machine
160 161 Textile Machine
170 170 Textile Machine Part
187 188 Textile Machine
211 212 Textile Machine Part
214 214 Textile Machine Part
217 218 Textile Machine Part
233 233 Textile Machine Part
246 246 Textile Machine Part