The republic. [volume] (Washington [D.C.]) 1849-1853, 1853-01-21
PROPOSALS. ron DnrDar-poArs.
. WAR DgPARrMEHr,
BUREAU CoRPs ToPoaa APHIcAL ENerrEsRs.

. W Az DgPARTMgNr, 90
BUREAU CORPS ToPoGR APHIcAL ENeInK.Rs,
ea3 l,saF t4# December 8, 1852.
PROPOSALS will be received until and includ
ing the 10th day of next February, for the
construction Of four steam dredge- boats to be
worked by high-Pressure engines, viz:
One Tor Lake Champlaia, to be delivered, in
spected, and received at White Hall Harbor, on
One for Lake Ontario, to be delivered, irspect-
ed. and received at oswego, on Lake Ontario.
and received at Erie, on Lake Erie.
One for Lake Michigan, to be delivered in.
spected, and received at Chicago, Illinois Isl
The hui! Of each boatto be ITO feet long. 30 feet
et-ladder and paddle wheels. to draw when
equipped not exceeding feet Of water.
To have two cylindrical boilers, made of the bes
boiler iron, one quarter of an inch in thickness
twenty. feet long, and forty inches in diameter
each. 49,.
The working cylinders of the engine to be
twelve inches diameter inside, not less than hal
an inch thickness Of metal, and to have length
OF stroke of four feet, with halfstroke cutoff
Each boat to have paddle wheels for locomo-
ton, with suitable accommodation for the officers
and hands required to manHuvre and work the
BOAT, say captain, mate, pilot, engineer, and
twelve hands; also suitably constructed coal.
bunkers for about fifty tons Of coal.
NO advance will be made on a contract, nor will
boat be received or paid for until after it has
been inspected and tried, and found to meet the
Each boat will be supplied with a good four
Dared yawl boat, 20 feet long, and with four good
oars, and also suitable yawl- boat and oars for
assisting in weighing anchor. s't
The boat will be inspected in reference to ar
engagements, materials, and equipment, and will
be subject to the following trial: s#S
Isl. AS to locomotive power. 1t will have to
move not less than 100 miles in calm weather on
the waters OF each lake respectively, in conscious
i've hours, at rate of not less than six mile.
the hour. 4se tstst5 - ta'8a
I'd. As to dredging power. 1t will have TO raise
and discharge into scows of loose sand, 100 cubic
sand, part sand and parts clay, not less than
100 cubic yards the hour; of pure clay, so cubic
yards the hour; of tenacious clay and Of sand and
gravel, SO cubic yards the hour, from depth of
not less than 10 nor exceeding IL feet. 80
This must be the continued work of the boat
during ~ hours, and not an average during any
shorter time of work. S -
Each boat will have to be supplied with an al
Choir OF not less than 800 lbs, and too kedge al,
chors of 200 lbs each; and with an adequate chain
cable of not less than 10 fathoms long, of iron
Also z-inch hemp cable 100 fathoms long.
The trials will be under pressure of steam for
dredging. not exceeding SO pounds the square
inch; for locomotion not exceeding $50 pounds the
square inch. &e t2N.e#T ~ b.
The trials and inspection to be made by Uni
ted States agent. 7-s''as
The boats to be ready at the places stated by the
Proposals will at the same time be received for
four discharging scows for each dredge. boat each
scow to be provided with two good sweeps, and
with bottoms 30 arranged as to discharge the whole
load at once. Each boat capable Of holding not
less than 40 tons of excavated soil sa
Proposals to be addressed TO the undersigned,
and marked on the envelope Proposals for
Dredge boat.'' z#a tA5@4f 81
| ,!E%i rs as's,~a- esa j. j. ALBERT,
Col. Corps Top Engineers.
| The Republic, Intelligencer, and Union, Wash
ington; Courier and Enquirer,3 and Express, New
York; Commercial Advertiser, Buffalo, N. Y J;
Advertiser, Detroit, Mich; Commercial Adver
tiser. Chicago, ILL.,; Commercial Times, Oswego,
N. Y; Pittsburgh Gazette, Pittsburgh, Pa. AL
bany Register, Albany. N. Y, will give the above
twenty daily insertions, hen twice week until
February 10. col sa aaas. $50 =geE ~
Dec 9-d20t& awtFebl ascr .s~,.. ..-.s. "