74 
Report of the Judges on the 
The Judges awarded it the Second Prize, 201. 
It would not be right to close the notice of this engine without a word of 
commendation for its driver. 
As is well known to the readers of this Journal, the management of the 
engines during trial is confided by the Exhibitors to men of great ability and 
experience in the art of driving ; but, among them, the Judges believe the 
driver of this engine is entitled to a very high rank, and certainly nothing 
could exceed the steady, earnest, and unflagging attention which he devoted 
to his work. 
The next engine for trial was (No. 4245) by E. R. and F. 
Turner, of Ipswich. Price 245Z. 
Like many other engines tried on this occasion, this had two fly-wheels ; 
one, the working wheel used for transmitting power, the other the wheel con- 
taining the universal joint to suit the brake. 
One of these wheels unhappily became unkeyed twice during the trial ; it 
was therefore determined by the Judges that this precluded the engine from 
competing for the prize ; but, at the request of the Exhibitors, and in order to 
ascertain its merits, the engine was suflered to make the trial. 
This engine has a cylinder nine inches in diameter, and one foot length of 
stroke. It has a total heating surface of 187"8 square feet, and a total fire- 
grate area of 3'5 square feet, the whole of the area being used during the 
trial. 
The Exhibitors elected to work at 80 lbs. pressure, to develop 20-horse- 
power on the brake, and to run at 180 revolutions per minute. 
The cylinder is bolted on to the top of the fire-box, and is steam-jacketed, 
as is also the front cover ; the back cover has an air space, but is left rm- 
jacketed in order to admit of the joint being broken whilst steam is up ; the 
jacket is at all times open to the boiler. 
The steam is collected by means of an internal pipe, running along the barrel 
of the boiler to the front end, and having, for about three feet of the front 
part, I in. holes in its upper side, about 20 in number. 
It should be stated that the top of the fire-box is level with the top of the 
tarrel. 
The steam is admitted to the slide-jacket through an ordinary slide-regulator, 
or starting-valve. 
Q'he slide-jacket is bored out to receive the slide-valve, which is of the 
piston kind ; this valve is hollow, and the steam passes from that end of 
the jacket, to which it is admitted from the regulator, through the body of the 
valve, to the other end of the jacket. At each extremity of the slide-valve there 
are two packing-rings of cast iron ; these rings are pinned to the valve for so 
much of their circumference as is required to cover the passages into the 
cylinder, beyond these places the rings rapidly taper down and are left free to 
expand. The exhaust takes place in between the two ends of the valve, and 
round about the tube through which the steam passes. There is no expan- 
sion-slide, but the throw of this main valve is regulated by the governor 
acting on the eccentric ; this action is obtained in a peculiar manner — a manner 
which it will probably be difficult to render intelligible by mere description — 
a sketch is therefore added (Fig. 7, p. 75). 
On the crank-shaft " a," is keyed, by one of its sides only, a hollow disk, 
" b," containing the governor, and containing the attachment of the eccentric. 
The sheave, " c," of the eccentric (which takes the eccentric band) is outside 
the disk, " b this part of the eccentric has a slot, or oval space, " rf," in it to 
allow the crank-shaft to pass freely through, — the connection of the eccentric 
not being in any way to the crank-shaft (as already stated), but to a point of 
attachment, "/," within the hollow disk keyed upon the shaft. There is a 
