Patent GB-156603-A (GB)
Title: Bobbin-handling apparatus
IPC: B65H67/06
Filed: 1921-01-06
Abstract: 156,603. Barber-Colman Co., (Assignees of Colman, H. D.). Feb. 1, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Weft-replenishing mechanism.-Relates to a device for selecting bobbins singly from a mass and depositing them on a conveyer by which they are fed to the magazines of automatic weft-replenishing looms, such bobbins as are deposited upon the conveyer with the tip or small end leading being automatically reversed. In the arrangement described, the conveyer carries the bobbins to a winding-machine. The bobbins are fed from a hopper by an oscillating trough 2, Fig. 1, to a selector or aligning device A comprising a rotary table 28 surrounded by a stationary guard 29 and provided with pockets which deposit single bobbins in holders on a conveyer C. The trough 2 is oscillated by an arm 6 which is locked to an arm 4 by a catch 9, but if there be sufficient bobbins in the selector device A the catch 9 is removed to prevent the action of the arm 6 by a lever system 37 connected to a feeler, which is disposed in the selector and operated bv the weight of the bobbins thereon. Any threads which may extend from the bobbins on the table 28 to the bobbins in the trough are severed bv a breaker B, Fig. 4, comprising fixed plates and oscillating jaws operated by a shaft 48<a> and link 47. The table 28 is provided with a series of peripheral pockets 61, Fig. 9, which are of such depth that the bobbins carried therein will not drop out during the rotation of the table and are provided with gearing 68. 69, operated bv a roller 71 and a cam-plate 72 so that the bobbins are successively deposited in holders 76 en a conveyer. The cam surface is oscillated bv a cam 95, but normally is prevented from making its full travel by means of a detent 97 so as to be retained in position to operate the pockets. The capacity of the selector A is greater than the need, of the device to which the bobbins are fed by the conveyer, and, in order to prevent bobbins being deposit.ed into holders already charged, a feeler 99 is. arranged so that, when raised by a passing bobbin in a holder, it removes the detent 97 whereupon the cam-plate 72 is moved beyond the range of the roller 71 and the corresponding pocket is not operated. Any trailing threads from the bobbins deposited in the holders are guided into the throat of a guide-plate 107, Fig. 4, and severed by shears operated by the shaft 48<a>. The severe ends fall on to the table 28, and, together with the ends severed by the breaker B, are eventually engaged by the rotary post 66 and wrapped therearound. The post 66 also cooperates with a fixed post 67, Fig. 1, to sever and wind up any ends which may extend from the bobbins on the table. The conveyer is driven by a sprocket wheel 81, Fig. 4, fixed to a shaft which is driven through a clutch comprising spring-pressed dogs adapted to yield in case of obstruction to the conveyer. A resilient rotary paddle 118, Fig. 1, and a fixed stop-pin are provided to engage the bobbins and to dispose them correctly in the holders if they are deposited with their ends resting on the end stop lugs of the holder or are too far forward therein. The bobbin-reversing mechanism comprises a channelshaped member 154, Figs. 4 and 20, carried by a spindle 165 which is turned through 180‹ when a bobbin is carried bv the conveyer with the buttend to the rear. To prevent breakage if a bobbin is not properly seated in its holder, a feeler 123 is arranged so that when moved by a displaced bobbin it releases a spring-controlled bellcrank lever 134, Fig. 1, through levers 128, 130,- and thereby disconnects a clutch 140 on the driving shaft 52 and applies a brake thereto. A. loose pinion 176, oscillated through 180‹ by a sector 178 operated by a cam-disc 181, is mounted on the spindle 165 and is clutched thereto by means controlled bv a. feeler 145. The feeler 145 springs down on a passing bobbin and retards it until the rear end is in contact with a lug 77 and lies on a ledge 148 in the holder. Below the ledge is a flange 149 which travels over rollers 146 so that if a butt-end is at the rear of the holder it is firmly supported and raises the feeler and thereby operates a stop-rod 151. A dog 173, Fig. 25, mounted on an arm fixed to the pinion 176, is normally prevented from engaging with two diametrical notches 174 in a collar fixed to the spindle 165 by the stop-rod 151 at one end of its oscillation and by a cam surface on an arm 186 at the other. The arm 186 is mounted rigidly on a dog 170 which engages one or the other of two diametrical notches in the collar. If the stop-rod is withdrawn, the dog 173 engages a notch 174 and turns the spindle through 180‹ and at the end of its swing is removed from the notch by the arm 186, which is operated by the arm 170 falling into the notch 168 on the collar opposite to that from which it was forced at the beginning of the movement.