Patent GB-190813258-A (GB)
Title: Improvements in Spool Changing Apparatus for Looms.
Inventor: ARLT RICHARD
Filed: 1908-06-22
Granted: 1909-03-25
Abstract: 13,258. Arlt, R., and Maresch, W. June 22. Loom shuttles, changing bobbins and the like in, automatically.-The spool magazine is adjustably bolted to the breast beam, and has a fixed side cheek 5, Fig. 2, and an adjustable side cheek 6, Fig. 1. The ends 14 of the spool spindles lie on the upper surface of the cheek 6 and are conducted down. wards, at fixed distances apart, by pins 13, Figs. 1 and 7, on an endless chain 12 in the hollow cheek 6, the pins protruding through a longitudinal slot 7. The spool-spindle heads are guided in the partly-covered channel or gutter shaped cheek 5, Fig. 2, and have annular flanges, which bear one against another and project over the hent-up inner edges of the cheek, the spindle being thereby prevented from lengthwise movement. The thread ends are secured to a rosette and are laid over the links of an endless chain, which moves in unison with the chain. The foremost spool is supported on one side between a hook-shaped spring 19 and the forward face of the cheek 5, and at the other side by a spring lever 17, Fig. 1, and a counterholder 18, Figs. 1 and 2, attached to the spring 19. When the weft-fork mechanism is actuated, a shaft 30 is rocked and a lever 31 is raised, against the action of a strong spring 32, from a projection 33 on a lever 35, which is thereupon rocked by a weaker spring 36 and by lever mechanism 37, 39 rocks a shaft 38. A lever 40 on this shaft is thereby raised from a pin 42 on a knuckle-lever 41, which is then raised by a spring 44 into an horizontal position and is struck by a tappet 53 on the lay. By means of an adjustable pusher-rod 43, a bell-crank 46 is rocked against spring action, and the transferrer 49, 50, 51 forces a fresh spool into the shuttle, the old spool passing out through an opening 54 and along a curved or inclined guide surface 55. A pawl 57 which is reciprocated from the lay by link mechanism and has a spring 58, is placed in gear with a ratchet-wheel 56 by means of the link 39, so that the chain 12 is moved forward when the spool-changing mechanism is actuated. The usual shuttle-feeler 62 or a modified form described below may be provided to prevent the actuation of the spool-changing mechanism when the shuttle is not properly boxed. Curved bars on an arm hinged to the cheek 5 bear upon and position the spools and threads. In a modification, the ratchet-wheel 56, Fig. 9, is operated by a spring pawl s on the transferrer 46, and the shuttlefeeler 62 is mounted on an arm g on the cheek 5. The knuckle-lever 41 is controlled by a lever 40 on the shaft 38, operated from the shaft 30 and the weft-fork mechanism by a lever o, which bears against a lever m on the shaft 38. A piece l on the lever m is adjustably connected by nuts k and a threaded rod j to the longitudinally slotted arm h of the shuttle-feeler, so that the operation of the spool - changing mechanism is prevented if the shuttle is not properly boxed. The foremost spool is supported on one side by a pivoted plate c, acted upon by a spring b, and at the other side by a spring-pressed finger and a counter-holder secured by a cross-bar d to the plate c.