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9258

3 inch scale Wallis & Steevens "Simplicity" steam roller

A 3 inch scale Wallis & Steevens "Simplicity" steam roller, built to the Plastow design, based on a small batch of 3 ton diagonal boilered machines produced by the Basingstoke company in the 1920s.

Fitted with a marine boiler as per the prototype engine, with feed by axle driven and hand pumps, as well as a small vertical injector of dubious efficiency.

Whilst some examples require a definite knack to fire, this one seemed remarkably eager when steamed earlier in the week, steaming freely all afternoon whilst running around the yard - there's a video of it here.

Technical information

Stock code

9258

Scale

3 inch

Length/inches

38

Width/inches

15

Height/inches

25

Cylinder material

cast iron

Valve type

slide

Valve gear

Stephensons

Reverser type

pole

Lubricator type

mechanical

Boiler type

marine

Boiler construction

silver soldered

Boiler material

copper

Working pressure

90

CE/UKCA mark

n/a - non-commercial

Boiler number

WS-261

Safety valve type

spring

Safety valve

2

Fusible plug

no

Differential

yes

Road speed

1

Whistle

yes

Hand pump

1

Mechanical pump

1

Injector

1

Date out

Oct-20

Hydraulic test valid to

21-Sep-24

Steam test valid to

30-Nov-21

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