350,145. Locking devices for lift cages. DAVIES, E. A., 146, Cathedral Road, Cardiff, and LYNAS, G. R. G., Druidstone, The Common, Pontypridd, Glamorgan. April 17, 1930, No. 12239. [Class 78 (iii).] The handlever for operating mine cage &c. keps is connected to the keps through a disengagable coupling, handlever quadrant and kep-gear adjusting devices being also provided. The handlever 12 is loosely mounted on the shaft 13 and has a spring-bolt 14 engaging a notch in the quadrant 16. A pair of crank arms 17 are keyed to the shaft 13 which operates the keps 10 through the usual gearing 29 so that they are projected to engage the cage 11 or are retracted to free the cage. A hand-grip 25. on the hand-lever operates a sliding rod 20 carrying stops 21 so that as the rod rises the stops are freed from the crank arms 17 and a projection 22 then disengages the spring-bolt 14. The handlever is thus freed and by means of projections 27 thereon rocks the crank arms and disengages the keps. In a modification two hand-grips are used, one operating the crank arm freeing device and the other the quadrant-engaging bolt. In another modification the hand-grip has a projection adapted to engage the hand-lever so that it actuates the lever as well as the releasing devices. The quadrant 16, Fig. 5, may have a slot 43, the notch 47, Fig. 6, being formed in a curved plate 45 with slots 46 and adjustably mountable by bolts 44 on the quadrant. A web 51, Fig. 7, for operating the keps by a link 52 has abutments 49 adapted to engage adjustable screw studs 50 to facilitate the setting of the keps.
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