Weaving; a practical guide to the mechanical construction, operation, and care of weaving machinery, and all details of the mechanical processes involved in weaving . d be allowed for change. With a new setof boxes the binders must be tighter than is necessary with an oldset, due to a certain amount of grease whichit is mipossible toremove, and the shuttles as well are mclined to be oily. Set the liftmg rod thoroughly by means of the lock-nut under-neath the boxes. Carelessness in regard to this is a source oftrouble as the boxes become loose, and during the picking of the 174 WEAVING 161 shut
Weaving; a practical guide to the mechanical construction, operation, and care of weaving machinery, and all details of the mechanical processes involved in weaving . d be allowed for change. With a new setof boxes the binders must be tighter than is necessary with an oldset, due to a certain amount of grease whichit is mipossible toremove, and the shuttles as well are mclined to be oily. Set the liftmg rod thoroughly by means of the lock-nut under-neath the boxes. Carelessness in regard to this is a source oftrouble as the boxes become loose, and during the picking of the 174 WEAVING 161 shuttle the front of the box descends, causmg the shuttle to strikethe race-plates with harmful effect. A loose lock-nut is also acommon cause of the boxes binding in the slides. The above directions apply to the fitting and fixing of boxesregardless of the motion employed to actuate them. Before de-scribing the setting of the boxes, due consideration must be giventhe box motion. The box motion used on the two-harness ginghamloom consists of two parts, the Upper and the Lower, the latter ofwhich will be explained first because it is connected directly to Fig. 107. Knowles Gingham Box Loom. KNOWLES BOX LOOM LOWER nOTION. This box motion derives its movement from elliptical gears,and consequently has a fast and slow motion. The gears are timedto impart their greatest speed during the change from one box toanother, which regulates the color of filling to enter the it is not only advisable but necessary to have the boxeschanged in time, it is not always desirable to have too rapid action, 175 162 WEAVING for the movement should be as even as possible. A jerky actionm changmg boxes is constantly causing trouble. A diagram ofthe gearmg of this motion is presented at Fig. 108. Elliptic gear
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