細節
A well engineered 2in. scale model of the Fowler Class BB1 twin crank compound ploughing engine 'Princess Mary', built by J. Haining and C.R. Tyler -- 24½ x 45½in. (62.2 x 115.5cm.)
With brazed copper boiler with fittings including twin water gauges, pressure gauge, safety, blower, injector, whistle, water lift and clack valves. Engine details include cylinders 1in and 1½in. bores x 2in. stroke, Stephenson's link reverse, counterbalanced crankshaft with two roadspeeds, eccentric driven feed pump and by-pass, ratchet operated lubricator, dog clutch and gear operated rope drum and spoked flywheel. Chassis details include spoked straked wheels with brass hub caps, spud pan and spuds, worm and roller operated chain and rod steering, water lift and pipe, injector, wooden foot boards and many other details. Finished in maroon and black with yellow lining and polished brightwork See colour illustration
With brazed copper boiler with fittings including twin water gauges, pressure gauge, safety, blower, injector, whistle, water lift and clack valves. Engine details include cylinders 1in and 1½in. bores x 2in. stroke, Stephenson's link reverse, counterbalanced crankshaft with two roadspeeds, eccentric driven feed pump and by-pass, ratchet operated lubricator, dog clutch and gear operated rope drum and spoked flywheel. Chassis details include spoked straked wheels with brass hub caps, spud pan and spuds, worm and roller operated chain and rod steering, water lift and pipe, injector, wooden foot boards and many other details. Finished in maroon and black with yellow lining and polished brightwork See colour illustration