Special Agents Series Volume 21-25 (Paperback)

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1908 edition. Excerpt: ...the first and fig. 12 the latter. The weight is usually hung inside, as the centrifugal foice of a rapidly revolving carrier tends to prevent an outside carrier dropping quickly enough to prevent kinking when the thread slackens. The weight is thus also more protected from dirt, but this arrangement makes the threading somewhat more troublesome. Fig. 11 shows a carrier without bobbin, but when a bobbin is placed on it the thread is first run through the eye near the center of the standard, then through the stop-motion eye, then up through the eye at the top of the standard, down through an eye in the lever e, through the tension-weight eye, and then through the eye at the top of the hollow spindle, whence it goes to the braid former. This makes a total of six eyes to be threaded. On both styles the short lever at the top is arranged so as to be lifted clear of notches in the top of the spool by the tension of the thread, but when this tension ceases the lever drops into a notch and prevents the bobbin continuing to unwind. Fig. 11. Fig. 12. Fig. 13. Fig. 11.--Vertical bobbin holder. Fig. 12.--Bobbin carrier, showing the outside tension weight. Fig. 13.--('curses of bobbins in milking three-line laee. VARIATIONS REQUIRED LOR THE VARIOUS WEAVES. For making ordinary braid two gears are of course the least possible number that can be used. On large lace machines there may be as many as 60. In making the simple "soutache" braid previously noted the horn gears at the end are always made with an odd number" of teeth and the middle gears with an even number of teeth. The reason for this is readily seen, as the end gears have to carry each bobbin completely around and start it in between two other bobbins on its return course. The...