A Meccanoman's delight - a glorious Heath-Robinson medley of journals and shafts, pulleys and drive belts, giant gears, cams, eccentrics and supporting ironwork - all the paraphernalia of the traditional engineering from which Meccano was inspired, driven by a 1901 Marshall single-crank tandem compound steam engine in an adjacent room.
The "endless rope" driving most of the slip house machinery is tensioned by a sliding weight fixed to the wall, and in the model was represented by nylon cord with a soldered joint.
The building - wall, floor, ceiling joists and girders were reproduced in Yellow/Zinc, and the machinery in Red/Green.
The whole shebang was powered by a car fan motor concealed in the 'yellow box', driving both machinery and engine from the overhead shaft. A second output, concealed inside the plinth, assisted by driving the Slip Room's two vertical shafts from underneath.
I hate Meccano steam engines with sprocket chain drives on the crankshaft or knicker elastic round the flywheels. In this case, both were prototypical! The chain drove the governor, and the elastic (actually a 1' wide canvas belt) the machinery "next door".
Builder's comment: A popular model in the Meccano world, but ignored by the museum.