Daily Kennebec journal. [microfilm reel] (Augusta, Me.) 1870-1975, 1891-06-23
oUa NAME SAKE.
What ths csuissr Maine viii Hsvs tc
Make Her GO.

i BRsoKlNS. N. T., June 2S.-The ma
chinery for the big Armored cruiser Main,
vill be ready for assembling aboard ship il
50 days This seAtemen. WAS made yssteY
day By N. +. Palmer. Jr., Prssien. Of ths
N. r. Palmer, Jr.. Company. All the
pafts for the Names engines have been
completed. The sngiaes have been fully
erected st the works Of the company. The
builders are now engaged in fitting oil
cups, iuorieafing paris, and various email
work which might be left until the machin.
cry 10 placed aboard the Maine Mr..
Palmer desires. however, to hArs every
| part fitted before the engines leave the
eompany's houses. The machinery will be
transported in lighters from East Twelfth
street TO tie Ms,4e at The navy yard.
As the machinery of The Maine nov ap-
pears IN the shops OF the builders, il 10 one
Of the finest pieces Of marine engine work
ever seen in an American establishment
II Is the lArsest set Of eugines - yet bull,
FOR an American var vessel. The engines
must develop as the mean of four hours
trial 3 ,0o0 horse power. The contract
price for the Mains's machinery is $780,
COO. The seventh payment, amounting TO
over $4,000. Was authorized yesterday By
the government engineers experimenting
the work. The contract calls for the com.
pletiou Of the machinery in . year from
next 0ctcber. On that ds;e the engines
must not onl..' be aboard ship, but ready for
tfisl.
No apprehension is~felt by the builders
that the time limit will be insufficient. Il
is declared that but for change in the type
Of metal for the columns the engines could
na h..ap do fnr W al
ahead Of The allotted time. II WAS originally
intended 10 employ cast steel tubular col
umns, bu. they failed to pass the inspectors
The N. +. Palmer, Jr-, Company then
asked ard received permission to substitute
forged steel columns. II was thought the
substitution could be effected in four
months time, but six months was needed,
The engines Of the Maine have in all 20
columns.
The Names boilers, eigh. in number, of
the Scotch tubular type, are practically
finished. They are now lined up in the
boiler shops af the company, occupying the
same relative position that viii be assigned
them aboard chip. They will be placed
against the side Of the vessel, a6ording a
8 fors-aud.sfs fi,erocm. This fferoom
will be divided by athwsrtship bulkhesd,
giving two fiterooms With four boilers 10
eacn The boilers are designed to furnish
an efficiercy Of go s horse power to he
square foot.
The engiaes are double.working twin
screws. 10 type they are triple expansion,
vertical. inverted cylinder. direct acting.
The cylinders in the case Of each engine
will measure in diameter, high. pressure,
30 l2 inches; intermediate pressure, 81
inches, and low pressure. IS inches. The
stroke Of all pistons ia 36 inches. II is
calculated thst 5000 horse power will be
developed when the main engines are max
ing about 1872 revolutions per minute. The
high pressure cylinder of each engine will
be aft, and the low pressure cyhoder for
ward. The low pressure cylinders are so
arranged ~ to be disconnected when
working al Low power. Each boiler meas
utes II feet inches in outside diameter. |
They sre all constructed for . working
pressure Of 1876 pounds per square inch.
The to's! heating surface is 1880 square
feet. Forced draught wilt be introdu led
on the asl-pi, system.