Bernard Lundberg exhibition quality 2 inch scale Clayton steam wagon, with tipper back. The coal fired silver soldered copper boiler with water level gauge glass, twin safety valves piped to an outlet beside the chimney and 0-150psi pressure gauge. The boiler is fed with an engine driven feed pump via an exhaust heater or economiser and injector beside the driver. The twin cylinder engine having reversing quadrant in the cab and handle operated regulator, driving the rear wheels via a chain to the differential, both rear wheels being braked by internally expanding brakes with gear compensation or balance mechanism near the brake pedal. The rear body has drop sides and rear and is lifted by means of twin hydraulic rams powered by a unit driven by a turbine or external handle/electric motor. The wagon riding on spoked wheels shod with solid rubber tyres, both axles having leaf springs. Overall length 101cm.
Bernard Lundberg was born in 1924 and model making was very much a lifetime hobby. During WW2 he began working, first at Wimpey then at the Gramophone Co (later EMI) working on electronic projects and subsequently becoming a technical author, he continued at Elliot Brothers, G&E Bradley, Wayne Kerr and finally MEL, a defence electronics company within Phillips. He retired in 1987 but continued as a subcontractor, naming his company Beejay Enterprises (hence the signwriting). As he built the wagon he wrote a series of articles in Model Engineer magazine on various aspects of the build, including improvements he'd made and details added having had access to full size wagons. Included with the wagon is a ring binder titled The Book of the Clayton Wagon, a well written and very full account of the build, it is believed this was never published but is clearly assembled with this intention. The wagon was exhibited at Olympia in the late 1990s and I feel sure was much admired, many of the steam fittings are bespoke made and more to scale than typically seen, there is also a miniature jack and lamps for the engine