172 (#234) ############################################ CHAPTER VI THE BASIC PRINCIPLES INVOLVED IN WORSTED DRAWING THE somewhat complex series of operations to be studied under the heading “Worsted Drawing" will best be understood by treating these operations under the following headings :- 1. The basic principles involved ; 2. The clothing (mechanical) of the basic principles ; and 3. The study of the various types of worsted drawing machines. Chapters VI, VII, and VIII are respectively de- voted to these three different aspects of the problems now to be faced. It is fundamentally important to note that worsted drawing involves (a) The feeding of a sliver or slivers into the gill-box or the drawing-box; (6) The passage of the sliver or slivers through the gill-box or the drawing-box; and (c) The delivery of the sliver or slivers from the gill- box or the drawing-box in an efficient manner, and convenient form for subsequent treat- ment. It will be well to remember, in the first place, that in the early days of the worsted industry there was no such thing as worsted drawing-combing (as a prepara- 172
107 107 Textile Machine
110 110 Textile Machine
121 121 Textile Machine
124 124 Textile Machine
136 137 Textile Machine
140 140 Textile Machine