Слике страница
PDF
ePub

A—Continued.

Plates for planking bottom and sides.

DIMENSIONS.

[graphic]
[ocr errors]

8 0

6-16 8 1 8 2 8 0 5-16 8 1 8 2 5 0 6-16 5 6 6 0 70 90 9 6 10 6 4 0 5-16 5 0 5 6 7 0 90 10 0 8 0 3-16 90 8 0 2-16 9 0 8 6 8-16 8 0 10-16 8 0 4-16

[ocr errors]
[ocr errors]
[ocr errors]
[ocr errors]
[ocr errors]

do

Stem and stern post, {i place 28. feet long, 7 inches wide, 11 inch thick.

do.
Ribbands 4} by inches, 5 pieces, 10 feet long.
Do

inches, 130 pieces, 10 feet long.
Do 4 $

80 do 10 do.
Round iron 9-16 inch diameter, 1,500 feet in length.

for rivets, 10-16 inch diameter, 3,800 feet in length.
do 11-16 do do 7,400

do, All to be of the best quality, and that portion for rivets to be of extra quality, similar to the kind used for chain cables. The whole weighing 283,399 pounds, as estimated.

WABHINGTON, March 25, 1842.

B.

Schedule of the iron required for gun deck beam fastenings for the

steamer to be built at Lake Erie.

[merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]

Flat iron, 6 by i of an inch

Do 4 by 2 inches
Do 4 by of an inch
Do

3 by 1 do
Do 3 by
Do 21 by 1 do
Do 2 by 1 do

4,725

500

550 3,200

do do do do do do do

do

300 1,000 1,750

Square iron, It inch

12,025 1,500

Schedule of the iron required for iron steamer to be built on Lake Erie,

deduced from schedules A and B.

[merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][ocr errors][ocr errors][merged small][merged small]

No. 3.

CIRCULAR.

NAVY COMMISSIONERS' OFFICE, April 21, 1842. Sir: The Board of Navy Commissioners, having been authorized to request proposals from steam engine builders, for building and putting up

the engines and boilers required for the steamer building for service on Lake Erie, enclose, herewith, a blank form, which specifies the particular classification of the work with reference to prices for the different parts, and which, it is believed, will be found mutually advantageous to the persons who may contract and to the Government.

The boilers (of which there will be twó) are to be of iron, and will be of the kind usually called leg boilers, with water bottoms the whole length, and one tier of return flues, with openings through the front or back for cleaning them.

They are to be so arranged as to have the flues of both terminate in one chimney, and also in such a manner as that either one bojler or both may be used at the same time. They are to be braced on the flat parts with socket or other braces, as may be directed, eight inches from centre to centre, and the arched parts at proper distances, to give the boiler equal strength throughout.

The engines are to be of the description known as the inclined low pressure or condensing engines. The cylinders are to be thirty-six inches diameter, and have a stroke of eight feet.

The water wheel and centre shafts are to be of wrought iron, and not less than ten and one-half inches diameter in the journal.

All the parts of the engines are to be put up on board the vessel, either on the stocks or after she is launched, at the port of Erie, on Lake Erie, as may be directed, unless otherwise specially directed by the Secretary of the Navy; and the United States are to be at no expense for the transportation of any of the articles furnished by the contractor.

If you should be disposed to undertake the building of the engines and boilers for this vessel, you will be pleased to fill the proper blanks in the enclosed form, (in words, not in figures,) and procure the signatures in the proper places of the persons who are willing to become your sureties, that such information may be obtained respecting them as may be considered necessary.

You are particularly requested, in specifying the time within which you will contract to complete them, to name such a period as you feel well assured will enable you to complete them fully, as the Department is anxious to avoid any disappointment on this point, and will be disposed to exact fully the proposed forfeiture in case of non-fulfilment.

The Board are desirous that your reply shall be forwarded as early as practicable, and, if possible, before the 6th of May. Respectfully, your obedient servant,

L. WARRINGTON,

For the Board of Navy Commissioners.
Messrs. ROBINSON & MINIS,
Messrs. STACKHOUSE & TOMLINSON,
Mr. M. STACKHOUSE,

Pittsburg, Pennsylvania.
Messrs. ARTHURS & PRESTON,
Messrs. WARDEN, NICHOLSON,& Co.,

A.

The undersigned propose to furnish the materials, build, put up, and connect, ready for use, on board a steamer to be built at the port of Erie, on Lake Erie, one pair of steam engines, with the necessary shafts, paddle wheels, with all their dependencies of every kind, with iron boilers, coal bunkers, smoke chimney, and casings; all of the best materials and workmanship

. Said engines to be of the collective power of about 170 horses. The cylinders will be thirty-six inches in diameter, with eight feet length of stroke. The engines and boilers, shafts, paddle wheels, and all their dependencies and connexions, to be made according to such working plans, drawings, and descriptions, as may be furnished by order of the Navy Department; and to be put up on board the said steamer, under the direction of a naval engineer appointed to that duty, and completed ready for use within fourteen months from the reception of the first working plans for the same. The boilers to be completed within eight months from the receipt of the drawings, so far as is necessary for putting them on board the vessel; and placed on board previous to the main deck being laid, and, consequently

, before the vessel is launched. The whole to be furnished upon the following terms and conditions, viz :

1st. For the cylinders and air pumps, when bored and flanges faced, shall be cents per pound. 2d. For such iron castings as it is necessary to make in loam moulds,

cents per pound. 3d. For such iron castings as it is necessary to make in dry sand moulds,

cents per pound. 4th. For the grate bars necessary for the boilers, cast in green sand and close flasks, cents per pound. 5th. For such other iron castings as may be made in green sand moulds

cents per pound. 6th. For the composition castings necessary for the engines, per pound.

7th. For furnishing the materials and building the boilers of iron, according to the description and directions which will be furnished, placing thema on board, and connecting them with the engines, ready for use, per pound.

sth. For the smoke chimney, braces, bands, and sheet iron casings for the chimney, all fitted in their places, complete, — cents per pound.

9th. For the coal bunkers of plate iron, with the bolts, braces, doors, &c., all fitted in their places, complete, cents per pound.

10. For the copper pipes necessary for the engines and boilers, ---cents ilth. For the water wheel and centre shafts of wrought iron, accurately turned in the journals, and for the eccentric and cut-off cams, and to be rough turned the rest of their length, cents per pound.

12th. For the cranks of wrought iron, when bored, faced, and dres sed, ------cents per pound.

13th. For the cross heads of wrought iron, when bored, turned, faced, and dressed, complete, — cents per pound.

14th. For the wrought iron work for the water wheels, put together complete, in their places on the vessel, with the buckets fastened in their

cents

cents

per pound.

« ПретходнаНастави »