Patent GB-191221539-A (GB)
Title: An Improved Yarn Mercerising Machine.
Inventor: HAHN PAUL
IPC: D06B7/06
Filed: 1912-09-21
Granted: 1913-03-13
Abstract: 21,539. Hahn, P. Sept. 21. Hank type.-In a hank-mercerizing machine, two parallel rollers 2, 3 are mounted in fixed bearings and co-operate respectively with two rollers 2<a>, 3<a> mounted in vertically-moving bearings. The hanks, one of which, 140, is shown in Fig. 1, are placed over the parts of the rollers projecting beyond the framework of the machine. The bearings of the upper rollers are raised and lowered by yokes 71 operated by suitable gearing from cams on a main shaft 21, driven slowly by a driving-shaft 60 through reduction gearing 55 ... 59. The two rollers 2<a>, 3<a> are raised alternately and stretch the hanks before treatment with liquid. A shaft 32 carrying loose pulleys 45, 46 and a fast pulley 43 rotates the lower rollers 2, 3; through suitable gearing. Two oppositely-running belts cooperate with the systems of pulleys so that the rollers are alternately rotated in opposite directions with intervals of rest between the two motions. The belts are controlled by belt-forks 41, 42 which are periodically shifted through suitable gearing by a cam 39 on the main driving-shaft. Four boxes 4, 5, each of which is divided into two compartments by a partition 6 are carried on railed platforms 7 adapted to be raised and lowered by rack-and-pinion gearing operated from cams on the shaft 21. The boxes are provided with openings in their sides to allow the ends of the rollers to pass into the interior when the boxes are in the raised position. Fixed slides through which the rollers pass co-operate with the openings in the boxes to render them liquid-tight. As the boxes reach the lower position, they are moved to the other end of their respective platforms by camoperated forks 18 so that the rollers enter the two compartments of each box alternately. A cam-shaft 88, driven off the shaft 21 by chain gearing 86, operates lye valves 84, warm-water valves 108, cold-water valves 112, and draining- valves in the bottom of the boxes. Each box carries squeezing-rollers 23, co-operating with the rollers 2, 3. The lye and water valves are connected by pipes to distributing pipes 224. Each pair of rollers with their respective boxes operate in the same manner. As will be seen from Fig. 1, the operations of one set begin when those of the other set are half completed. Taking one set only as an example, the sequence of operations is as follows: The roller 3<a> being lowered, hanks 140 are placed each end around the rollers 3, 3<a>. The roller 3<a> is then raised and the belt forks 41, 42 are shifted to rotate the shaft 3. The hanks are therebv stretched. At the same time. the boxes 5 are slowly raised and the rollers enter the left-hand compartment. The lye valve 84 is now opened and lye fills the compartment. Subsequently the belt-forks are again shifted and the roller 3 rotates in the opposite direction. The draining-valves are then opened and the lye is run off. The roller 3 and the squeezing-rollers 23 squeeze the yarn. The boxes are then lowered and moved to the left. On being raised, the right-hand compartments are brought up to the yarn and the rinsing operation takes place, the roller 3 rotating alternately in both directions as before. The boxes are then again lowered and the cycle of operations is repeated with fresh hanks of yarn. The whole machine is started or stopped by a belt-shifting lever 53.