Evening capital. (Annapolis, Md.) 1884-1910, 1907-01-26
SOME NEW TESTING DEVICES
LATEST DESIGN uF MACHINERY
FOR LABORATORY.
Department of Marine Engineering And
Naval Construction AT The Uni.
ted States Naval
Academy.
MODERN APPARATUS OF DIFF
FERENT MAKES.

A number of modern and interesting
testing apparatus of different kinds
and several new pieces of machinery
of late design, have been added recent
ly to the laboratory Of the Marine
Engineering Building al the Naval
Academy, the quarters of the DsTar.
ment of Marine Engineering and Ma
val Construction, of which Comman-
der J. X. Barton is the head. The
laboratory and model room of the de-
partment now contain the most com
plete collection of working models
and parts of marine machinery and
testing apparatus in the country and
one Of the most complete in the
world.
The policy of the department. is TO
procure for the instruction of the
midshipmen types of different classes
of machinery as soon as IL is being
minently4nentioned for naval use,
or working models of any large con
struction which embodies novel fea-
lures. 4 commission has recently
been appointed by the Navy Depart
ment 10 investigate and report upon
the use of gasoline engines in the
launches used in the navy and also rs
auxiliary power on board vessels for
such uses as anchor and ammunition
hoists. Consequently, the department
here has secured types of gasoline en-
gines of the kind likely to be used
and the midshipmen are now being
given instruction in their construction
and use.
The testing machinery recently i'm
stalled was made by Richie, of Phila-
delphia. It consists of an apparatus
to test torsional strain, one TO measure
tensile and crushing resistance, an oil
tester and several smaller apparatus.
The torsional testing machine, for
the purpose of testing the resistance
of various metals to a twisting or
torsional strain, such as applied to a
propeller shaft and its measuring cap
acity is $4,000.
Another machine is one which can
measure either the tensile strength of
the resistance to crushing force of
metals up to 100000. There is also
an interesting machine which tests the
efficiency of different machinery oils.
Ii consists of journal and shaft, with
the means of taking the temperature
OF the former. In testing the different
kinds of oil, the shaft is revolved at
constant speed and oil applied from
a VESSEL AiitdoAANA t3attA
tity. Sufficient oil is applied TO keep
the journal at constant temperature,
which is regarded as safe and the
quantity of oil required to do this is
obtained ny subtracting the amount
still in the vessel from that originally
there. The most efficient oil is, of
course. that of which the least is re-
quired to maintain the constant tem
perature.
The gasoline engines now in the
laboratory are a l2-horsc power 2-cycle
Giant engine, made by Goodshalk, of
philadelphia, and an lS-horse power
Standard 4-cyclc engine, made by the
standard Manufacturing Company,
of Jersey City, \. j. The three en-
ines are attached 10 different kinds of
reversingg apparatus for propellers.
A turbine engine of a new type, the
De Laval mas also been recently in
stalled. 4 new type of water brake.
for measuring horse power has been
applied TO this engine and also to an
electric motor.
Among the smaller testing machines
are one for testing the flash point Of
different oils, one for testing the
tensile strength and crush resistance
Of concrete and one for testing the
power of metal springs.
The officers attached TO the Depart
ment of Marine Engineering and Naval
Construction are: Head of Depart
ment, Commander j. X. Barton; as
sistants, Commander Dewitt G. Red
grave, Lieutenant Commander II. =.
Higgins, Lieutenants A. NJ. Cook,
Raymond Stone, l.. r. James. F. D.
Karns, w. +. ClHverius, r. l.. Pinney.