382 THE COLLIERY GUARDIAN. February 19, 1915. Empty Side. Back Legs of Headgear 3' Raising Ram Longitudinal Section Fig. 1.—The Pit Top Arrangement. — SCALE OF FEET — 10 5 0 10 20 30 Pit Sump. Sectional End View. Seco joar? Cages *or . Empty Tubs, Sectional Plan, 20 o 10 Raising and Lowering Rams for Full. Tubs. / Pushing • out/ Rams, / Secondary Cag:s for Full Tube . Main -+~ Cages, IF * I Raising and Lowering Rams for Empty Tubf 30 Fig. 2.—Arrangement of Decking Plant at Pit Bottom.