The republic. [volume] (Washington [D.C.]) 1849-1853, 1853-01-26
PROPOSALS FOR DREDax-soAu. Sc.

| 10 EasaAeer Department., Jan. IL, 1853.
1 2EALED PROPOSALS will be received until
~ the 10th February, inclusive, for the construc-
more, Maryland. Of steam dredging machine
six dumping scows, and one decked lighter. for
the waters Of the Chesapeake Bay and the Atlantic
coast 4asy as's'--.1-,. N~'-
The proposals will state separately the prices of
the dredge. boat, including machinery; dumning
| scows, each and the decked lighter "A =
The hull OF the dredge must be strongly nut to-
esther, wen kneed, bolted, and braced; to be not
less than sixty feet in length thirty feet in width
! and six feet in depth. To have suitable seenn o
and necessary accommodations for twelve men,
all requisite store-roons, and storage for about
| twenty tons OF coal. 81 liiH s5e.ts :
The machine must be capable of working in an
exposed situation, such as sea-way, being in
| tended for operating in the waters of the Chesa.
peake Bay; and will be required to dig and raise
from depth of twenty four feet of water and to
deliver into scows or lighters at least sixty cubic
yards of hard clay per hour, or six hundred cubic
yards in working day of ten hours.
Inc SIX dumping scows must be strongly put
together, well kneed and bolted; each capable of
holding forty-five cubic yards of dredged matter
and TO be SO arranged as to discharge their loads
readily and at once from the sides of the scows in
depth of four feet of water.
The decked lighter, which is intended for the
transportation OF coal and other supplies for the
machine, must be strongly put together, we'll
kneed and bolted, and capable of carrying about
forty tons.
The dredge, with its scows and lighter must be
covered at Baltimore, ryland, on or before the
fifteenth day OF April next, ready for inspection
and trial BY the officer of engineers, or such other
agent of the Government as may be appointed for
this purpose. The dredge and its equipment to be
moored at the expense o. the contractor to such
part OF the Patapsco river as may be designated by
the agent of the Government, and there tested as
to its performance at the contractors exnense
which test must be in every respect satisfactory
and conforming to the conditions of the contract
he mad &C
dredge or Its equipment until the whole shall have
been delivered, inspected, and tested as above pre-
scribed and received, when the contractor will be
paid in full. la
Parties offering to contract for this dredge and
is equipment will state distinctly on what princi.
pie they propose to construct the machine: if ma.
tented, the name OF the patentee; whether simi-
lar machine has been built and subjected to trial.
and if so, where, and under what circumstances:
giving the character of the Idredged matter and
the depth of water from which it was raised; NAM
ing persons to whom reference can be had in re-
gard to the same. The dimensions of the hull of
the dredge, as we'll as of those of the dumping.
scows and lighter, should be given with the details
OF their construction; also the power of the engine
Tor driving the machinery of the dredge expressed
in number of horses; and also in the diameter of
the cylinder and length of stroke of the piston
and the pressure of steam under which the engine
is ordinarily worked. If practicable, drawings
should be forwarded of the dredge complete, and
also the dumping -scows.
Proposals will also be received for adding Ioco
motive power to the dredge, as to be able to pro-
pei it, with its scows and lighter, in still water at
the rate of six miles per hour; stating fully the
arrangement of the motive power; and the change,
If any, such addition would make in the form and
dimensions OF the hull of the dredge and in the ar
rangement of the machinery.
Further particulars may be obtained by CORE
spending with Captain H. Beaverton, Corps of
Engineers, Baltimore, Maryland.
Inc proposals to be addressed to the under
signed, and marked on the envelope " Proposals
for steam dredging machine, &c, for the waters
OF the Chesapeake Bay and Atlantic coast" a
|GE JOS. G. TOTTEN.
Brevet Brig. Gen. and Col Engineers
To be inserted in the Republic, Intelligencer,
and Union, Washington; Courier and Enquirer, and
Express, New York; Albany Register, and Albany
Express, Albany, New York; Wing, Troy, New
York; Pennsylvania Enquirer, and Daily News,
Philadelphia, Pennsylvania; Boston Courier Bos.
ton, Massachusetts; Patriot, Baltimore, MARYLAND,
daily till 10th February One copy of each paper
containing the advertisement to be sent to the En-
gineer Department, Washington. s--a-.. "a
Jan l4-dtl0Feb