A SMALL FULL-SIZE BOX TABLE ENGINE, Ferrabee of Stroud, circa 1855,
the cylinder is 2¼in bore x 4in stroke, has integrally cast steam passage and valve face with shaped cylinder cover. The two-part valve chest is driven via a rocking lever shaft, running in bearings integrally cast with external steam passages fixed to the entablature. The rocking lever is driven by a yoked eccentric pushrod. The adjustable governor butterfly valve is driven by a Watt-type governor, with central spindle swivel counterbalance weight and rocker, with a pedestal which straddles the crankshaft. Connecting rods are driven by the crosshead running on bar-type guides surmounted by a Gothic spreader. The crankshaft is driven by a connecting rod and carries a flywheel, eccentric and crank-driven feed pump. The entablature is supported on a box bed with mouldings and brass beaded oval openings, unique to Ferrabee. Finished in green black and polished brightwork. Original oak plinth, 30½in (77.5cm) high, 24in (61cm) wide