The daily crescent. [volume] ([New Orleans, La.]) 1848-1851, 1851-04-15
PROPOSALS FOR BUILDING AND PUTTING
UP AN IRON LIGHTHOUSES.

VI AN IthON LSGHI-HOlSE.
Customhouse. New Orleans,
COLLECToR's OFTIcK, April !, 1851
SEALED PROPOSALS will be received at this
ing and putting at the of the South and South
west Passes
An Iron Lighthouse,
in accordance with the following specifications. Said Light
house be complete, with the exception of the lighting
apparatus
The Lighthouse bs feet high from foundation to the
lantern deck foundation 30 feet diameter base 20 feet d.
amete at top above ground nches under ground
feet 3nches l6 foundation bolts IA inch diameter feet
long, with plates, keys and nuts.
The foundation to be laid two of sawed or hewed
timber 35 feet long laid in the manner as the ounda
ton of the Cusombouse. The foundation to be built
of good hard brick laid in cement.
The tower circular in FORM and to be made sections
in height together through horizontal anges on the
inside OF the sections at the and bottom Each of
tons composed of segmens boed together the inner
side by vertical anges The first section to be IS feet
diameter it, base, Is feet inches It's top and 10 feet
- inches in height 10 have hange its base inches
wide on the outer surface through which the
to the foundation Thickness of casting in lower
section Ia inch bolt for the inch diameter "a
bolts Second section IL feet inches diameter al base Is
tset top, height 10 feet Section made 10 segmsns in the
same manner first sec0n and the ting be Ia inch
thick screw bolts the first Third section Is feet
screw bolts inst and second Fourth section castings
Ia inch. diameter base - feet g. at top IL feet height II
feet segments and bolts in each of X inch diameter
Filth section castings inch diameter, II feet base top
10 feet 8. height II feet segments and bos each of y
inch diameter. Sixth section q inch casting, 10 feet d.
ameter at base feet top IL feet high seements and
bolts in each of z inch diameter. Tie sections to be placed
each other that the vertical connections shall break Joint
each other boted on The top section by
inside ange CThs ring may be in piece or in
segments) Diameter of ring base feet flare out with
far IL feet inches top height of section ,u
Six openings to be left in the upper part receive ange
cast on the under side of the lantern deck Casting for cap
ring u inch thick, bolts in diameter and "a bolts
Lantern deck Is feet diameter formed by egments DO ted
together by anges the under side. The ange extends
round the OUTER edge of the segmens as To form rim
round the lantern deck On the outer side emcrcu ar
opening to be left in the of the deck give access TO
the lantern from the stairway below Castings for the lantern
deck q inch thick, bolt q inch diameter and 30 Dol
cast iron column oow) inches diameter e5 feet high
inch thick resting lange of 10 inches diameter rises
from the centre OF the foundation to the of the lantern
deck The lantern deck be enclosed by wrought iron
railing feet inches high q inch round bars spaces inches
stancheon Ia inch diameter each segment. Hand.ra
inch by IA inch. ring feet high, with an opening in one
side for doorway forms the lower part of the lantern This
ring has ange at bottom and top, projecting inward. the
former to the lantern deck. the latter TO form
rabbit for the lower edge of the plate of glass; Castings for
rim inch thick, bolts q inch diameter "a bolts. 16
wrought iron upnghs by inches, feet long, standing
the deck secured to the inside Of the m noches being
cut in the upper ange of the rim to receive these
to be rabbed the edges receive the plate glass The
roof Of the lantern elliptic dome feet inches high II
feet inches diameter at the base, om which projects
ange inches to form gutter pipes he attached to the
gutter leading through the lantern deck and sufficient to carry
the water from the roof The dome be made in segments
united by anges and will require the joints perfectly
tight bar III inches square, to extend the base of
the dome, support the chandelier circular opening to
be left in the top Of the dome communicating with hollow
ball foot inches diameter and which have ventating
the under side From the top Of the ball rise rod
and Castings for dome q inch thick bolts in each
segment e in diameter Globe feet diameter a inch thick
with staff and Upright supports for lantern dome
inches by u, feet high The lantern contains 80 plates glass
feet inch by feet high. ter. door to be formed in
the lantern the width of plate of glass stairway IS feet
high, feet inches diameter, rising inside the from
the foundation to the lantern deck The ends of the
steps secured to the central column the ends sup
pored by wrought iron carriage wrought iron hand.
rail supported from the steps by bannse OF q ncn round
iron by 30 inches long, and intervals of feet
placed bannister Of inch diameter. The steps to be Ia
inches wide at the outer edge with inches e The eads OF
the steps be made in lattice tome sod having pro-
jecng ribs the upper side to give oothod Steps II OF
lattice work. inch thick; if soid y inch thick Hand rail
\ inch by IL inch. Wrought iron carriage by Ia inch.
brick wall inches thick leaving air space of inches
between il and the iron be bui from the foundation to
the lantern deck Windows IL by Is inches. door feet
wide feet high made of BIG sheet iron, with frame round
the edge of u inch by ga inches iron.
The proposals will sate-First the of the tower in
Guiding all iron work. lanern plate glass; etc. landed at the
place for building second, the cost of foundation and brick
work third the cost for landing and building the tower
complete, according TO specifications.
The bids to be transmitted to the Superintendent of Lights
at Washington for his approval
The Proposals to be addressed to the UNDERSIGNED, and
endorsed Proposals for Building an Iron Light house"
ap3 WIN. FRERET, Collector and Spn, or i,h,s