TheGreat Western Railway (GWR)Bogie Class4-4-0ST werebroad gaugesteam locomotives for passenger train work. The first two locomotives of this class were introduced into service in August/September 1849, with the remainder following between June 1854 and March 1855. All but one were withdrawn between October 1871 and 1873, with the final locomotive being withdrawn in December 1880.
The first two locomotives were built atSwindon Works in 1849 for working trains on thesteep andtightly-curvedSouth Devon Railway which at that time was operated by locomotives from the Great Western Railway. The frames only ran from the front of the flangeless forward driving wheels to the rearbuffer beam. The bogie swivelled in a ball-and-socket joint, riveted to a gusset under the boiler barrel.[1] Early examples were fitted withsledge brakes, mounted between the driving wheels, but these were later replaced with a conventional brake acting on just one coupled wheel.[2] The operation of South Devon Railway had been contracted by that company toMessrs Evans and Geach from 1851 – using new4-4-0STs designed by Daniel Gooch – and so the Bogie Class found use on other parts of the Great Western network. In 1855 additional locomotives were built for the GWR byR and W Hawthorn.
^Tuplin, William (1971).Great Western Saints and Sinners. London: Allan & Unwin. p. 37.ISBN0-04-385057-X.
Reed, P. J. T. (February 1953). White, D. E. (ed.).The Locomotives of the Great Western Railway, Part 2: Broad Gauge. Kenilworth:RCTS. pp. B21 –B23.ISBN0-901115-32-0.OCLC650490992.{{cite book}}:ISBN / Date incompatibility (help)
