Details
A Vertical Firetube Test Boiler
Built by J.R. Johnson with brass bound mahogany lagging, brazed superheated copper with ashpan, adjustable damper, grate, input manifold with drain plug and three clack valves, one connected to an injector, other fittings include water gauge, glass protector, pressure gauge, safety, main stop, injector, whistle and other valves, finished in black, natural wood and polished brightwork. Drum dia. -- 4½in. (10.4cm.): overall height -- 28½in. (72.5cm.). Boiler certificate valid to 9.9.95
Built by J.R. Johnson with brass bound mahogany lagging, brazed superheated copper with ashpan, adjustable damper, grate, input manifold with drain plug and three clack valves, one connected to an injector, other fittings include water gauge, glass protector, pressure gauge, safety, main stop, injector, whistle and other valves, finished in black, natural wood and polished brightwork. Drum dia. -- 4½in. (10.4cm.): overall height -- 28½in. (72.5cm.). Boiler certificate valid to 9.9.95