細節
A finely engineered 1½in scale model of an Aveling and Porter single cylinder two speed four shaft road roller --13 x 24in (33 x 61cm)
With braised copper boiler with fittings including water and pressure gauges, safety, blower and clack valves. Engine details include blued steel lagged cylinder ¾in bore x 1in stroke, piston valve controlled through Stephenson's link reverse, trunk type crosshead guide, wedged and strapped big end, counterbalanced crankshaft, ratchet operated lubricator, eccentric driven feed pump and by-pass, two road speeds, disc flywheel and oil pots to all bearings. Chassis details include spoked steel rolls, worm and roller chain steering, damper, band brake to rear axle, rear roll scrapers and tender water tank. Finished in green, black, red and polished brightwork with brass bound blued steel boiler cladding.
See illustration
With braised copper boiler with fittings including water and pressure gauges, safety, blower and clack valves. Engine details include blued steel lagged cylinder ¾in bore x 1in stroke, piston valve controlled through Stephenson's link reverse, trunk type crosshead guide, wedged and strapped big end, counterbalanced crankshaft, ratchet operated lubricator, eccentric driven feed pump and by-pass, two road speeds, disc flywheel and oil pots to all bearings. Chassis details include spoked steel rolls, worm and roller chain steering, damper, band brake to rear axle, rear roll scrapers and tender water tank. Finished in green, black, red and polished brightwork with brass bound blued steel boiler cladding.
See illustration