A 7 1/4 inch gauge, 4 inch scale Quarry Hunslet chassis. The work of an experienced model engineer with many locomotives to his credit, including a "Lilla" in the same gauge, it has been built to a good standard.
Work to date comprises a rolling chassis with flycranks broached and axles machined for keys, eccentric sheaves fitted, machined cylinders complete with valve chests, valves and glands with PTFE packing. There is a pair of expansion links, complete with lifting links, die blocks and spindles.
From here the chassis could be completed to an air-running state with little expenditure other than stock material for connecting, coupling and eccentric rods, and a pair of eccentric strap and crosshead castings, available from Reeves.
gauge | 7 1/4 inch |
length/inches | 48 |
width/inches | 21 1/2 |
height/inches | 9 |
wheel material | cast iron |
axlebox type | plain bearing |
cylinder material | cast iron |
valve type | slide |
valve gear | Stephensons |