Patent GB-410844-A (GB)
Title: Improvements in mechanism for packing into cans or other receptacles, slivers discharged from carding, drawing and like machines
IPC: B65H54/84
Filed: 1932-11-18
Abstract: 410,844. Packing arrangements for sliver cans. FAIRBAIRN LAWSON COMBE BARBOUR, Ltd., Wellington Foundry, and BEE, J. R., 7 Simpson Street, Armley Road, both in Leeds. Nov. 18, 1932, No. 32609, [Class 120 (iii).] In mechanism for packing into cans or other receptacles slivers discharged from carding, drawing and like machines the known camoperated lever devices 6, 7, 7<a> are employed for vertically reciprocating the pressing member 5, Fig. 1, in combination with means for engaging the cam 6<a> with its operating shaft 8 and disengaging it therefrom by the action of a rotatable key 10 which when in contact with a hand-operated lever 14 disengages the shaft 8 from the cam 6<a> and when not in contact therewith is actuated by a spring 13<c>, Figs. 3 and 5, to lock the cam on the shaft, and with means for arresting and locking the. pressing member 5 in its raised position. A chain or sprocket wheel 9 driven from the lower delivery roller 3b is loosely mounted on the shaft 8, the hub 9<a> of the wheel 9 being formed with a concave opening 9<c>, Fig. 7, conforming to part of the periphery of the semi-cylindrical locking key 10. A pinion 11 is fixed on the hub of the sprocket wheel 9. Discs 11<a>, 12 are also mounted on the shaft 8 respectively adjoining the pinion 11 and the wheel 9, the ends of the key 10 passing through the discs 11<a>, 12 being cylindrical. A latch 13 extends laterally from the key 10 a notch 13<a> therein being adapted to engage with an arm 14 fixed upon the starting shaft 15. The arm 13 is formed with a curved shoulder 13b. When operative, the arm 14 holds the arm 13 in the position shown in Fig. 3 against the action of the spring 13<c>. A cam 6<d> notched at 6f for engagement with a weighted catch 20 is formed integral with or fixed to the cam 6<a> while a pawl 21 is pivoted at 21<a> on the face of the sprocket wheel 9 and engages with a notch 12<a> formed on the disc 12, a spring 21b retaining the pawl against the periphery of the disc 12. When the packing member 5 is raised and inoperative the wheel 9 revolves freely on the shaft 8 without transmitting motion except, if desired, to the can B through gearing s<1>, s<2>, s<3>, and the arm 14 is in engagement with the arm 13. To start the packing movements the handle 16 is moved to carry the lever 14 out of engagement with the arm 13 the spring 13<c> then recoils and forces the arm 13 into engagement with a stop 13d causing the key 10 to rotate so that its edge 10<a> is brought into the opening 9<c>, Fig. 5, thus driving the shaft 8 from the sprocket wheel 9. Simultaneously the pawl 21 engages the notch 12<a> and the disc 12 and spur wheel 9 rotate together. The hand lever 16 may be operated at any time but the key 10 is only rotated by the spring 13<c> when the notch 9<c> registers therewith. The pawl 21 is arranged to engage the notch 12<a> simultaneously with the registering of the notch 9<c> with the cut-away portion of the key 10 so that the starting position of the cam 6<a> and the stopping position of the member 5 by engagement of the pawl 20 with the notch 6f are always the same. The member 5 is stopped in its raised position when the cam 6<a> is approaching its highest point so that the parts are effectively locked.