GB1401188A - Double drum winding engines - Google Patents

Abstract

1401188 Winches GEC-ELLIOTT MECHANICAL HANDLING Ltd 21 Nov 1973 [22 Sept 1972] 43893/72 Heading B8B [Also in Division F2] Figs. 1, 2 show a double-drum winder wherein the drums 1, 2 are individually and rigidly fixed to separate shafts 3, 4 for rotation therewith in respective bearings 8, 9 and 6, 7, wherein the shafts 3, 4 are co-axially aligned and arranged to be driven from the output drive shaft 15 of an electric motor 14 through a double clutch 21 whereby either or both of the shafts 3, 4 may be driven. The clutch 21 includes a sleeve 22 splined at 23 to rotate with drive shaft 18 (coupled at 19 to the shaft 15) but free to slide therealong on bearing bushes 24, under the action of an hydraulic piston and cylinder 28 operating through a bifurcated lever 26 acting on a thrust collar 25, into one of three positions. A coupling member 29 attached to the sleeve 25 has internal teeth 31 and external teeth 32. As shown, in the central position of the sleeve 25, the teeth 31 engage teeth 36 on a member 35 attached to the shaft 3 while the teeth 32 engage teeth 34 on a member 33 connected through a flange 13 to the shaft 4-both shafts 3, 4 are thus driven. In the two extreme positions of the sleeve 25 (not shown) one or other of the sets of teeth 34, 36 is disengaged so that either one of the shafts 4, 3 is not driven while the other 3, 4 is. Figs. 3, 4 (not shown), illustrate mechanical equivalents of the clutch 21. Fig. 6 shows a single clutch used in an arrangement where the shaft 3 is driven continuously (from a motor 14 positioned to the left, as shown), and the shaft 4 is either driven therefrom through teeth 36, 56, 57, 34, as in the position shown, or locked by the teeth 57 engaging fixed sprog teeth 58 when the lever 26 is moved, in this embodiment, to the second of two positions.