394 
EXPLANATION OF THE PLATES. 
F, Steam-pipe from boiler. 
G, Stop valve. 
H, Cylinder. 
I, Belt round the cylinder, to bring the 
steam into the valve case. 
K, Slide valve. 
L, Steam ports. 
M, Piston. 
N, Eduction pipe. 
O, Feed pump. 
P, Feed pipe. 
Q, Water cock. 
R, Clack valves of feed pump. 
S, Connecting rod. 
T, Eccentric, for working the slide valve. 
U, Eccentric rod for ditto. 
V, Governor wheels. 
W, Governor. 
PLATE LXIV. 
ELEVATION OF LOCOMOTIVE ENGINE, STANHOPE AND TYNE RAILWAY; CON 
STRUCTED BY MESSRS. ROBERT STEPHENSON AND CO., OF NEWCASTLE- 
UPON-TYNE. 
This plate exhibits a general elevation of the engine without the tender. It 
should be observed, that the construction of locomotive engines has undergone con 
siderable variation in external form and detail since the establishment of the Liver 
pool and Manchester railway. The particular form and arrangement of engine 
represented in the accompanying engraving is such as was adopted on this railway 
about the year 1834. The following is a general table of the dimensions of the 
various parts. 
Diameter of boiler 
Length of ditto . 
Length of fire-box outside 
Breadth ditto 
Depth below boiler 
Length of inside fire-box 
Breadth of ditto 
From top of bars to crown of fire-box 
Area of fire-grate in square feet 
Length of smoke-box 
Breadth of ditto . 
Depth below boiler 
Diameter of chimney 
Height from rail 
Ft. In. 
3 6 
8 0 
3 7 
4 0 
2 3 
2 11J 
3 7f 
3 5f 
10 7 
2 If 
4 H 
2 5 
1 2 
14 0