Firecycle by andy a, on Flickr
Spotted at the fire museum today. Not one from their collection, but brought along by an enthusiast.
This curious velocipede is an ex-London Fire Brigade hose layer bike.
The vehicle in the background is a 1960s-era hose layer, a specialised fire appliance that carried huge quantities of hoses internally to connect distant fire hydrants or other water sources to the scene of a fire. It carried a trailer pump to assist in moving the water along. Such a vehicle would be dispatched to support a major emergency where local water supplies may be insufficient to fight the fire. Such was the expected distance between the appliance and the water sources, two of these bicycles were carried internally to assist in quickly towing the hoses to the hydrants and getting back again. The bike also carried connection pieces and a hydrant key.