Evening star. [volume] (Washington, D.C.) 1854-1972, 1881-07-04
Are you ready. SIN
"Y.y.yes-yes. sig.
Then On ahead.
and quite ready

| Then so ahead" ano qutte req
The people stood looking On. IRE. An, s
10 laugh at the poor boys fsi> ana I
moves. The bis wheels turn SOW. ekSar
COD and silent engine rolled slowly b.
For an Instant there was q laugh. Sh>
goIIg the wrong way. She moved faster
faster, and the laugh died away. All. sho A..
SOWING up. She has stopped. It's a failure.
30. Tom could be seen turning the reversing
uaI. ILe engine gave one loud whistle, and
started ahead. Faster and faster! on & came.
ana rushed past all the people at ~ miles an
hour How the people cheered and cheered
IL was wonderful Tom was looking straight
,se IKE good engineer. The ladies waved
thelr hapdkerchiefs. and the boys shouted until
they were hoarse. Tom Stay boltt had won the
prize. - N10
The engine ran on about half mile. stopped.
before the presidents pretty daughters. Tom
came to the window, and took OF his hat and
bowed politely 10 the ladies.
"How much pressure have YOU Master Fnct
heeT ,? said the president
1-t-tWenty-20 pounds, SIR"
Insn tne school gave three cheers for Tom
SAID it was far better TO do something than 20
write the best composition ever seen. OF course
every ole wished TO know just how IL was done,
ana 10 make IL all clear, the president mounted
apile OF sleepers, and told them the whole story
= on all know that in steam-englne is a boiler
ahd a furnace, or ffre-oox. Water Is put in the
oo.er, snd IRE IS mace In the furnace precisely
as I'D 'na-BeJtle on stove. The water bolls In
the tea kettle, and we see the steam escape In
the engine the steam is locked In and cannot
6 cape, and very soon 1t becomes crowded ami
II sun kept locked in, it will burst the boiler
STORE this can happen. the engineer opens a
valve, and permits the steam TO enter Two oh.
long IRON boSes called the cylinders. Here IL
IeetS piece OF metal, called the piston that
nus the inside or the cylinder pretty closely IL
canrot get past, and SO 1t pushes the piston
away 10 the other end OF the cylinder. AS soon
as thlS happens, the valves clio e OF their own
accord and the steam escapes into the omen air
WIN loud pun. Then the steam enters the
other end Of the cylinder, and drives the pls.
ton back agan. In this manner the Steam
PUSHES the piston 10 and fro as tt tries to escape
from the boiler.
Now there is a rod fastened to the piston
and passing through the end OF the cylinder.
Eacn cylinder has one, and these are Connected
py means OF other RODS with the great wheels
OF the locomotive. You now see that the pis-
ueh, GrlVen forward and backward. moves the
Whtels, and thus ft Is the escaping steam moves
the engine These rods you can see outside the
en- lne; the piston and valves are inside, out OF
Nov the ar is elastic, like steam. and II may
pe used Ia any engine In place OF steam III air
is pumped into tight box like a boiler. it may
oe lockeo up or compressed, and If we were 10
go on pumping, we might burst the boiler with
cclnpfes Sed air. Master Stay bolM knew all this
ana he also knew that when an empty engine
as happened on our ride out here, the wheels
VIII turn rouAd, and these move the rods ana the
pistops, and each cylinder works like a pumn
Instead OF letting steam out IL pushes air back
Ito the boiler, and very soon the boiler Is fun
y. eidSuC CoihpIeSSeu air struggling 10 get out.
Master Stayb oltt, as soon as the train stopped
opened the valves and the air rushed Out me
way 1t Went In, making the pi5tons move, and
The wheels turn round. OF course the air soon
ran out, and tie engine stepped. This made
no difference to us, for Master Stayboltt Clearly
showed that he had learned his lessons we'll
and knew how to apply them
Then the presidents youngest daughter
Climbed up into the engine, and gave TON the
pie watch. The boys took him on their
shoulders In triumph TO the presidents car
every one got on board, the flag-men were
called IL, and the entire party went gayly home
with the empty engine trailing behind.