, 1860-09-04
MECHANICS INSTITUTE FAIR
r 1 r T IL D A 7 .
Notes of the Exhibition.

iugly with the great exhibition at the Wigwam.
Tie attendance Of vieitdfs yesterday was larger
thsn on any preceding day, and lest evening
gave very large turn cut.
We gre CAD to see that the public are prop
erly appreeiatinR this local display Of the IN
dustr1al and 6ne arts, and that the Mechanics
Institute are to be tho gamers from the success-
ful results Of lhe finest fsir they have ever hello
in this city. Il is SO pronounced BY all who |
have seen il, and held az it ID in the W'gwau, bJ
lar the largest building in ills Northwest, tie |
attraction Of the interior Of tile structure, filled
with article Of interest and raue, causes every
visitor to be loud in praiac Of the same.
Our nutes Of the Fair we continue, taking up |
almost at random such features and articles rs
attract cur attention. Ths Machine De-
partnent is especially interesting, and
attracts large crowds Of visitors. Some
OF the art cles We hare already referred to.
Prominent ID interest rs CT Chicago invention
and manufacture, il Hurlbut j. Doaue's Patent
Ssare Saving Machine, in operation at the
southern end Of the hail. Il IA great SUCCESS,
aod deserving Of much ere dit to The inventors.
Its utility cannot but prescntitse1f to every ore
who sees it In operation. It ssws the stave
from tie bolt, to any desired curve and thick
ness, rounding the outside in the most finished
and perfect manner 4. one operation, with the
utmost precision and rapidity-, ut the rate Of
about fifteen staves per minute, making saE-
ing Of more than 33 per cent. over tie old meth.
cd Of irving out and dressing by hand. It il
t-u1y great labor saving machine. 1t will do
tho work OF more than ten men, and IN very
much better manner. 1t is also capable Of pro-
ducin9 more than three tines the amount Of
work than can be done with the Cylinder and
Reciprocatirg Saws, nj about the came proper
ton Of sayiEg in timber One Of The finest
tight barrels We ever saw WIS exhibited BY
them, which was saved from the log and made
up into barrel On the spot. We also noticed
very ingenious machine for rounding barrel
heading, emitting both edges at one operation;
also machine tor cham!er and cEozng ma
chine for Finishing both ends Of the s:aEe at The
same time. These machines are all Of Chicago
manufacture, 1nd ere one Of the most attract
i've features on exhibition. The staye machiac
is kept in operation m7st Of the time, atfordng
much satisfaction tu the practical men who are
lockers oc. They will bs operated each day
and evening till the Fair cfoses, and Mr.. Doane
informs us will be exhibited ut The Cincinnati
and St. Louis Faisa.
We have already stated that the motor Of the
mecAap ical department is q beautiful twenty
horsepower engine exhibited By Messrs. Wal
worth, Hubbard i Co., Of No. ISL Like St. Il
is a superb piece Of Mechanism, perfectly noise
less III its working, aud universally admired for
its style and finish. I. is surrounded By quite
a little famil; Of appliances aud distinc! urtl-
ces contributed BY the game house, who arc
largely in the branch Of trade they represent in
tha fair.
Attached to the boiler, which is en- the alley, is
dskctofts Low W4ter Leteet:r, oue Of the
most complete aud infAliible guards ever put
Oh duty. 1t is simply wrought iron ripe
passed through the top Of the boiler mud reach
| ing JUS: below 7he point where it is desired 10
| main,ain the surface o: the wste7. The top Of
the pipc ia surmoun!ed by u spherical air CHAM
| b.r Of cas-! iron. Just below this chamber q
short nzm Of pipe Terminates in 4 small steam
whistle. The ar chamber Is elevated about
three feet above The boiler. The operation o!
the Detector is Is follows: When tha lower
ead Of the pips is as it should be. below the wa
ter, TIE pressure naturally drives water up into
the pipe and compresses air III the air. chamber.
1t is SO maintained until the water BY careless.
ness is suffered to get below the pipe, when q
| rush Of hot steam takes its place. The kccess
to the short arm Of pipe ending in steam
whistle is closed with .fusible safety plug, TIT
water kept cooled by ihs mir without did moi
melt this plug but The steam does it instantly
and the Tell ta,e whistle at onca gives Ill
alarm.
| Ga the front Of the boiler is Asher9fs'. 1Rdtt'
Guage and Ashcroft's Steam Guage, By mean'
Of which trio Of ever faithful employees the in
terror Of the boiler, its water, steam and press
ure are kept exactly indicated.
Attached to the cagins is Whit1ifr's Improrft
Fan Rgulato,s, in which The rary isg resistance
offered By the air to revolving iron fans Is in
mast admirable manner made to operate on
lever ard close or open the throttle valve. Thi
is frequently shown At the Fair. Say doze,
machines are in operation, saving, grindlul
quartz, sheliEg corn, cutting staves, de-, &c
The next minute half OF than are thrown IL
Toe released power would drive the rrmalnde
at fearful rate, hut the slightest accellera,ie
OF tie regulator. fans increases the Eesistanc
Of the air, raises the lever, closes the throttle
: and the beautiful engine goes steadily on q
) before.
Just beside the engine is at work what som
E Practical mechanics in our hearing prononne
Q the gem OF the fair Il is JK0ftAinqkou's SkfQ,