Trials of Tradion-Eiifjines at Wolverhampton. 553 
of the "Sutherland," hut was arranged in a somewhat diflerent manner witli 
respect to the steering-wheel space. 
The driving-wheels were 5 feet diameter outside the indiarnhbcr tyre, 
which was 11 j inches wide by inclics thick, and was surrounded by a ciiain 
of steel shoes, as in the " Sutherland." The steering-wheel was 3 feet 1 inch 
diameter over the indiarubbcr, which was llj inches wide by 4 inches 
thick, and was ]irotected by a chain of steel shoes. 
The steering-wheel fork-spindle passed iipwards through a boss, in a strong 
dome-shaped casting, and was worked by a worm wheel keyed on it, driven by 
a worm jiinion on tlie horizontal steering-spindle. 
Tliere was not any canopy over the steersman and fireman. 
The principal difference between this machine and the " Sutherland" lay in 
the arrangements of the engine and of the gearing. To speak nautically, the 
cylinders and crank-shaft, instead of being fore and aft, as in the " Sutherland," 
■were placed athwartship. The cylinders were inverted, and gave motion to a 
two-throw wrought-iron crank-shaft, containing between the throws the four 
eccentrics for the link motion. These eccentrics were forged in the solid, with 
the shaft. At each end of the shaft there was a sliding pinion to gear into an 
internal spur-wheel, bolted on to the inner side of the driving-wheels. These 
pinions, when in gear, gave the quick sj^eed for travelling. The crank-shaft, 
by means of a spur pinion and wheel, drove the second-motion shaft, which 
extended across the engine, and carried at its two ends two pinions, which 
could be slid into gear for the slow speed with the internal spur gear of the 
driving-wheels. Tliese and the other two sliding pinions were controlled by 
levers, fi.xed on the ends of shafts which extended lengthways of the engine : 
those for the quick-speed pinions were solid, and lay within the .shafts for the 
slow speed. These latter shafts were hollow. 1'he four handles were conveni- 
ently placed two on each side of the driver, and there was an ingenious arrange- 
ment of stops by which the driver was secured against inadvertently endeavour- 
ing to put the one speed into gear before the other was taken out. It will be 
seen that this disposition of handles sufficed for throwing out one wheel when 
turning sharp curves, as well as for putting in and out the quick and slow 
gear. The reversing handle and steam handle were also brought within con- 
venient reach of the steersman. There was not any break. The feed was 
controlled by the fireman by means of a cock in an overflow pipe. The feed- 
pump was worked off the second-motion shaft by an eccentric. 
There was not any provision for heating the feed-water from the exhaust 
steam, but there was a heating-pipe to deliver surplus steam from the boiler 
into the tank. 
There was a vertical governor, actuated by a spring as well as by gravity, 
to control the engine when working as a driver of farmyard machinery. When 
thus acting, recourse was had to a very original device for the purpose of 
obtaining motion for a band-wheel. It was as follows: the left-hand driving- 
wheel, having been got round to a particular position, was fixed there by a 
connection to the framing. When in this position, a hole in the inner, and 
a corresponding hole in the outer, disc of the wheel (these wheels being wrought- 
iron disc-wheels, as in the case of the "Sutherland") were brought into a 
line with the left-hand end of the crank-shaft. The pinion was slidden back 
on the shaft, exposing the outer end, with its two keys or driving-feathers. A 
piece of shaft a little longer than the width of the driving-wheel was then put 
through the holes in the left-hand wheel, and the end of this piece of shaft beinijr 
provided with a suitable socket having two key ways, was passed on to the end of 
the crank-shaft. A bearing was then bolted on to the outer disc of the wheel, 
to support that end of the short spindle, and to keep it in position cndway.s. 
On the end of the short spindle projecting beyond this bearing a band-wheel 
was placed to deliver off jjower by a strap, or an universal joint could be 
VOL. VII. — S. S. 2 O 
