42 (#80) ############################################## 1 WOOLLEN AND WORSTED SPINNING 1) (5) The "setting," i.e. the spacing apart of the various cylinders included in a “set” of machines. (6) The design of the card-clothing with which the cylinders composing the set of carding machines are clothed, and (7) To a minor extent the relative design of scribbler, intermediate and condenser, All these points should be kept in mind in reading the following descriptions of a carding engine and of a "set of machines. * The action of a carder should be carefully studied under the headings (A) Feeding and feeding mechanisms; (Note: with this is almost invariably in- volved the delivery from the previous machine.) (B) Passage through the card, this involving the study of carding, stripping, and method of passage forward in the machine itself; and (C) Method of deliveryma simple problem ex- cepting in the case of the last machine, the condenser. (A) Feeding and Feeding Mechanisms are of two types :- ist. Preliminary or hopper feeds; and 2nd. Intermediate feeds. The object of a hopper feed is to take away from the “hands" the control of the quantity of material passed through the machine. Under the old conditions of hand-feeding the workman or workwoman weighed out a given quantity of the blend and spread this more or less evenly on each marked 12" of the feed-sheet as it slowly travelled towards the feed rollers. In the case of 1 1 42
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