North Carolina standard. [volume] (Raleigh, N.C.) 1850-1852, 1851-05-28

Hewitson have engines, of which is rather
clumsy in design.
In the French department Derosne ct Gail ct Co.
have set up locomotive, having horIZontai valves,
orked connecting rods-in fact. quite in the old STYLE
1t is only fair say that built for the pur-
pose of being exhibited.
There is some locomotives in the Belgian depart
ment, none Of which present any novel feature. Inc
Soceie Corcillet exhibit one rather like Stephenson
build. The Societe Cocker exhibit bogy engine
on plan much adopted in America. The bogy con-
siss of simple four wheeled truck, which genera'-
ly supports the foepart of the engine and Is only hA
ed to the engine by means of a swivel AS lle GU
CINE goes round a curve, the little truck OF oosS' US
it is technically termed, suits itself to the
abllng the engine TO sweep rounn "itIUu' ~
danger OF being thrown off the rails we nave "et-
er seen the plan adopted in this county, anu " "
live it is getting generally Obsolete. ,Lo
One of the hydraulic presses usea II, rasihS une
tubes of the Britannia bridge cxhlhlted. IL Is Won
derful TO contemplate what tremendous power can
/ ~ a,taiped nv such simple 1t is single
rose and we believe the most powerful ever made:
+ is to be shown at work. This press was placed
a. the ton Of of the towers or pers of the bridge.
Re;ng single press, there is cylinder in which
H. nIunrer works. We may as well remark here
that il is the water which is pumped into the GYM
der which forces the plunger up. At the top oil the
nunqer is fixed cross-head, from each extremity OF
which the chains hang these chains were connected
TO the tube below the cross-head works through
two guides secured rider above, the chains be-
ing secured the tube below, and to the cross-head
above; the punger being forced up raised the tube
as soon as one lift accomplished, the tube was
hacked up underneath, the chains secured above the
faseninus which connected the chains to the Cross
head were uosened and the punger, with the cross
head was then allowed to descend to prepare for
another stroke; the chains were again made last 10
the crusS-head and the was then ready Tor all
other lift.
The press used for testing the cast-lron gIrders o
the Crystal Palace roof is also exhibited. In the
case of the long girders supporting the roof over the
l,l u,rht irnn he IN
cipl was ties ted and that deemed sufficient; but
reliance could not be placed in the cast-iron gIrders
they were, therefore, all tested. The pressure was
not apped al the middle of the girder, but at two
points-each al one-ihrd of its length, according 10
the nature of the principle upon which the girder is
constructed.
There are specimens of Wyld's turn tables I; some
rood cranes. There is also fine collection OF mod
els for amateurs TO scruiinlZe, amongst which we
saw Parsey's pneumatic locomotive again exhibited,
though not at work, which is perhaps as we'll.
In the French department, Derosns Ell Gail ct Ca
show horizontal engine, the parts OF which are well
nronoriioued (: it is connected to aIr-pump, used
f,r The nurpose Of eXhausng boiler, i'll which the
nroc.ss or extracting sugar from beeroot is carried
on Near to this is d superior piece OF mechanism In
the shane Of Il paper-mill made by Middleton & FL
we'll an English firm III Paris: AT one extremity is
an endless hand of wire mauZe OF the required width,
which masses round rollers on this The pulp is al
lowed to flow the thickness of The paper is regGa-
ted according the flow Of the pulp, or according
to the speed at winch the wire auze is driven. AS
the pulp is carried along by the gauze the wafer per-
colates through; something's Jogging houGh Is CIV
en- 10 the rluZe more eifec;uay to set the pulp,
which having acquired certain degree of consSien-
cy lust sufficient to bear being removed, it passes
to a long jack towel, if We may SO term it, which
absorbs the moisture more eectuaIy; tie pulp thus
travels on, gradually acquiring greater degree of
consistency ill il passes three cylinders heated
by sleam each cylinder increasing in temperature
tie paper is then made, and is cut longitud naly and
rranverseIy into any sized Sheets All this is done
by The same machine.
In the Aus TRAN department, there is stationary
direct action engine by II. D. Schmd renarkabein
appearance for the Immense strength Of the frame
work 1t has a governor, which may be possessed
OF some peculiar decacy of action, but it appears TO
Us rather liable derangemrnt Altogether, the
CINE is well fitted up and finished.
London Nelrs.