Richmond enquirer. [volume] (Richmond, Va.) 1815-1867, 1826-11-21

ways, strikes US as calculated to excite and crafty
the attention of the scientific and inquisve. The
Company will complete a slack water navigation
from tide water to within l6 miles OF the Susq1e-
hanna. Permit US to add, that MIR. Chapman is a
gentleman of handsome talents and attachments;
interchangeable in the acquisition OF useful
and in its application TO practical aud useful pur-
poses; and will approve himself an able engineer.
Such are jus, the men country and the cause OF
internal improvement, need. Piilage Record.
MAucH CHUNK, Oct. ooh, 1926.
=" Charles Miner, ESQ.
" Dear Sir Siuce saw you have been al
most constantly engaged in the service of the
Lehigh Coal and Navigation Company. In the
fore part of the season ran a course of levels from
| this place TO the Delaware, and was several weeks
engaged in locating the improvements which are to
form the slack water navigation of the Lehish.-
This navigation will consist OF pools formed in the
natural channel OF the river where the river bed Is
nearly level, by means OF dam at the head OF
the rapids. The rapid parts of the river or falls
| are 10 be overcome 10y short canal. commencing
att he dam the head of each fall, aud terminating
in lock atlhe foot OF the FALL where it opens into
the next pool below.
The whole fall from certain point on the lock
| at Mauch Chunk to certain point at low water,
on the pier OF the chainbridge over the Lebish at
Easton, 36l feet ten inches, TO overcome which
with a slack-water navigation, there will be re-
CURED II dams and 81 locks. After that was
DONE 1 Land out the dams proposed TO be erected In
the upper section, from Stoddartsville to Mauch
Chunk. The improvement OF this sec'ion is pro-
posed to be effected by succession oil dams To be
built in the river, which is well confined between
high hills and little valuable land 10 be
flowed. This improv ement however, is not pro-
posed TO be effected until the other principal works
of the Company completed. The whole
amount of fall from the foot Of the great falls at
Stoddar,svlle, to the point mentioned on the lock
at the Mauch Chunk, is 925l feet; requiring IS
large DAMS
In September | laid our rail road which is
TO extend from Msuch Chunk to the Coal Mine, a
distance of nine miles, and is TO be a sinsle-,rack-
edge-ra with turnout places. The top of the
mine is $50 feet above he river, but the railroad
will terminate on the top of the hill above the Viii
lase, al elevation of215 feet above the river
The railroad is 10 form nearly uniform des-
cent, and to be constructed in such manner that
coal-waggons may descend by the force of gravity
To regulate and controul the descent OF the wag
CONS, q new kind OF Brake has been constructed,
which is different and perhaps l may safely say,
superior to any thing which has been used for that
purpose in the English other colleres This
brake consists properly of two kinds, both founded
upon the same principle one is called an Atmos-
pheric and the other an Hydraulic brake The
former, put into operation first; it consists of
horizontal cylinder enclosed at each end, with
piston working in the inside OF ii, after The man
ner Of steam engine. The ps,on-rod works
through one head OF the cylinder, and In each head
end of the cylinder is valve for the admission
of air, opening inwaids. There is also at each
end, another valve TO let the air out, which is re-
gulated by stop-cock. The piston rod is worked
by a crank affixed to Of the Wagon wheels -
The which is inside OF the cylinder, Iesists the
motion of the piston, and forms the checking power
TO the wheels; this checking power is made greater
or less required by the regulation OF the stop
cock, which admits more or less air to escape -
a short piece of rail road is laid, on which these
brakes have been successfully tried The spring
of The atmosphere i'll entirely stop the motion OF
the heels when the Wagon is under full
way, loaded with three tons of coal. The hydrau-
lie brake consists in substitution of water for air.
with another cylinder over the working cylinder,
10 receive the elected water. l, may in familiar
language be compared TO two horizontal charms,
connected together at each end by small pipe +,
which should permit the milk or water (whichever
might be in hem) be forced through these pipes,
as the dasher moves alternately back ard forward
and the resistance which is thus produced, forms
the check, while the stopping OF the pipes, entirely
stops the wheels of the wagon. This may be
powers and will probably supercede other kinds
OF brakes in all situations, il may be screwed TO
egulate itself under various circumstances. Mr.
Strickland has been here at the request Of the COM
pany, to examine the location of The railroad
which he approves, and appears much pleased with
these brakes, only of which (the atmospheric
brske,) he III Experimentation the location
OF the railroad, proceeded with series of le-
vels down the Delaware from Easton 10 the tide.
making at the same time careful survey OF the RI
yer. This work IL just completed, and am now
executing chart OF The river on a large scale. ON
which it is intended to exhibit every particular in
relation 10 the river which can be useful or inter
esting.
" Il great deal may be told ia a fen tyords ~
a few days ago party oil itinerant equestri-
ans attracted OVERLOOKING audience, to witness
their performances in Alexandria. So much for
theul. Ia the course OF song which they gave
one night, the bare mention Of : Old Hi,korv,
General Jackson,) was not only recei, ed 81 itb
rounds of applause, but was greeted with thr ee
hearty cheers loud enough almost to be heard in
the Secretary of States Office. That's all. we
were not present but were told By those who
wetc-and mention the fact, not because we are
either friendly opposed TO Gen. Jackson's cleo
ton. But there is no harm in the truth
.dter. Herald.
MISSOURI.
AT