It was also an arm strong lift. the W&C cars had to be manhandled on at the top and bottom of the shaft and couplers had to be removed at each end of each car to fit in the Armstrong lift, which was hydraulically worked.
Somewhere on the net is a picture of an M7 steam loco which went down the lift shaft. The lift was at the bottom at the time. The photo is excellent if you want to super-detail your Hornby M7 chassis.
Actually the lift was on the surface and the M7 loco started to venture onto it - but for whatever reason the lift started to descend (not locked in place maybe). The crew jumped clear and the lift ended up at the bottom with a mangled M7 on top of it (which had to be cut up for scrap on site as there was no easy way of removing it).
Somewhere on the net is a picture of an M7 steam loco which went down the lift shaft. The lift was at the bottom at the time.
The loco was shunting coal wagons on to the lift platform (which was at the top) so that they could be taken below to the W&C's power station (even in 1948 the W&C still used its own power supply, rather than using a feed from the later electrification scheme upstairs). The platform hadn't been locked in place and tilted, allowing the first wagon to fall and dragging the other wagons, and the loco, after it.