Patent GB-191510035-A (GB)
Title: Improvements in or relating to Self-Acting Spinning Mules.
Inventor: DUPONT RENE ABEL
IPC: D01H3/12
Filed: 1915-07-09
Abstract: 10,035. Dupont, R. A. July 9. Mules.-In a device of the kind in which the reserve of thread remaining unwound upon the cop at the completion of the run in is dependent upon the position of the counterfaller, which controls a pinion and chain transmission moving the quadrant screw to vary the position of the nut, the movement of the screw to cause the nut to descend, is effected proportionately to the rise of the counterfaller. The actual movement of the nut takes place only during the outward run of the carriage, but the setting of the controlling-apparatus in accordance with the position of the counterfaller takes place at the end of the inward run. A roller 19, Fig. 2, at the end of an arm 91 fixed on the counterfaller shaft, comes into contact with a lever 20<1> at the end of the inward run, when the counterfaller has risen too high. The movement of the lever 20<1> causes a lever 22 to rock about its pivot and carry a pawl 24 backwards over the teeth of a ratchet 25, and also to raise a rod 26 against the action of a weak spring 28, thus operating a lever 29 and bringing the end 29<1> of the lever into the position shown in dotted lines, Fig. 2.. On the commencement of the outward run, a projection 38 raises the lever 29<1>, draws down the rod 26, and operates the ratchet 25. The movement of the ratchet-wheel is transmitted to the screw of the quadrant by chains 43, 44, 45 and suitable gearing, the spur-wheel 65 driving the shaft 15 through a free-wheel clutch. Motion is transmitted from the spur-wheel 51 to the spur-wheel 57 through a clutch and gears 46, 47, 48, the clutch being put into gear at the end of the inward run, and opened as soon as the motion of the ratchet 25 has been transmitted to the quadrant screw. The clutch is controlled by a lever 71 operated by a cam-slot in a sliding plate 73. This plate is moved by a lug 85 on the carriage which engages a member 82 on the inward journey. having previously passed under the pivoted arm 80, and presses the arm 80 against a lug 79 on the outward journey. A modified arrangement comprises a lever 20', Fig. 12, connected by a rod 23 to a counterbalanced lever 22, which is pivoted on the spindle 53, the ratchet 25 being mounted on this spindle and clutching directly on to it without the intervention of the chain 43. The arm 91, Fig. 2, is hinged to a bell-crank lever 92 on the shaft 3 and can be raised slightly by a screw 93 to raise the roller 19 and cause it to operate on the lever 20<1> for a smaller reserve of thread. This adjustment is required as the number of convolutions on the base spindle is reduced as the cop grows. During the formation of the base of the cop, means is provided for raising the quadrant nut when the reserve of thread is too small and the counterfaller is drawn too low. An arm 100 on the winding-faller shaft 96 carries a roller 101 adapted to engage the arm 104 of a lever 102, which supports one end of a chain 109, the other end of which is adjustably attached to an arm 95 on the counterfaller shaft 3. The chain 109 supports, by a roller 110, a bar 111 sliding in a support 112 and having a catch 116 adapted to engage the teeth of a ratchet 114 keyed on the boss of a chain-wheel 115. An endless chain 117 passes over the wheel 115, under a roller 120, and over a wheel 119, through which motion is transmitted to the quadrant screw by a chain 122. When the wheel 115 is fixed by the catch 116, the chain 117 is drawn along, rotating the wheel 119 by the movement of the carriage. When the winding-faller is depressed at the commencement of the inward run, the roller 101 pushes the arm 104 into a position where it is retained by a tooth engaging the teeth of a lever 131. As the cop base is being formed, the winding-faller will descend to a less and less extent, and the arm 104 will be pushed over correspondingly; thus, the roller 110 will fall lower, and the counterfaller will have to occupy a lower position to raise the catch 116 sufficiently to engage the ratchet 114. When the carriage has completed its inward run, a chain 134 raises the lever 131 and releases the arm 104. When the cop base is completed, the chain 109 is removed.