Messrs. Beyer, Peacock & Co. Ltd.
Gorton Foundry, Liverpool Road, Manchester
2-4-0 Bissell-truck Tank Locomotives, 3 ft Narrow Gauge
Design Changes - 1896  

Description:
 
From photographic evidence (or lack thereof), a further design change seems to have been incorporated into DOUGLAS with the deletion of the external blower valve behind the chimney and its control mechanism through the right-hand boiler handrail.  As a result, a continuous handrail starting from the cab on one side, proceeding high along the boiler cladding, then round the top of the smokebox front plate and back to the cab on the other side was fitted.  The blower valve became situated centrally on the backhead inside the cab, steam being fed by a pipe from inside the dome, a separate delivery pipe being routed internally through the boiler to the smokebox tubeplate and from there to a chimney blower pipe.  
 
Specification Changes:

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