Novel Relay Demonstrated at British Fire Service College
Novel techniques in water relaying were demonstrated at the Fire Service College, Wotton House, near Dorking. England last Fall during a series of five-day courses for chief fire officers and firemasters in the United Kingdom, at which problems arising from emergency fire-fighting were discussed. With four men, (two pump men, driver, mate), a line of 6-in. diameter canvas hose was laid by the prototype “emergency pattern” hose laying appliance carrying a mile of hose. After the hose had been joined to a pre-laid polythene plastic pipe line, water was pumped from one of the new 1,000-g.p.m. pumping appliances to discharge into a lightweight fibre glass tank. From this, three light portable pumps took water to supply 12 75-ft. hose lines terminating in light alloy branches having 3/4-in. nozzles. It was estimated that 900 g.p.m. of water were being passed along the quartermile line of hose and piping.
The whole operation was completed in under four minutes and 12 good streams resulted. The hose layer worked at about 15 m.p.h. for the demonstration, but it is capable of operating at up to 30 m.p.h. The 6-in. diameter hose carried on the appliance will have eventually light alloy couplings of the same type as is used to connect the polythene pipes together. From “Fire Protection Review,” G. F. D. Pratt, Editor.