A CIRCA-1920 20-HP STANLEY CONDENSING STEAM CAR ENGINE, Serial No. 735-2480. Details include twin cylinders, each of 4" bore x 5" stroke, 40-tooth drive gear, Stephenson link reversing valve gear. In New England storage for over 35 years in a prominent collection. The engine is missing a cast iron slide valve, Stephenson valve link quadrant slide and valve guide rod. (Note: all missing parts are available in either new or replacement through Vintage Steam Restorations, J.R. Gould, proprietor, or from other Stanley enthusiasts.) Other fine details include removable cylinder heads, heavy cast exhaust manifold, brass cylinder and valve chest packing glands, removable threaded valve chest access cover, bar design crosshead guides with heavy cast crosshead and forked connecting rods, each with 4" crankshaft with counterbalanced crankshaft, center-mounted drive gear with four crankshaft-driven eccentric straps each with rod to reversing mechanism, four spring-loaded threaded mounting studs, the serial number stamped on cross frame "735-2480", 15" oval baffle plate with packing glands (Note: 2" section of plate side flange side missing, easily repaired). Final details include a horizontal cross-shaft with provision for attachment of reverse linkage to operator. Dimensions: overall length - 41"; overall width over cylinders - 17"; overall width - 21"; overall width over crankshaft - 12". (See photo).
The Stanley Brothers from Kingfield, Maine, had their first steam engines built at Mechanic Falls, Maine by the J.W. Penney Co.. Their manufacturing operation then moved to Newton, MA., with a rich history of American heritage in the area of motor road technology, photography and related technologies. This is a rare opportunity to obtain an American icon of industrial design that represents function, but at the same time incredible form. See link in "Resources" section to Stanley Museum. (See photo).