The Ely miner. [volume] (Ely, Minn.) 1895-1986, 1902-09-19
HARDENEN' COPPER

The following taken from the Bos-
ton Journal of Aug. %, relating to
former citizen will prove of interest
to the friends of Mr. StockLridge in
this vicinity and Duluth. The Jour-
nal says:
Experiments for the purpose of
hardening copper have been going on
in the mechanical world for a great
many years, but, as is well known, the
results have been very discouraging:
The public statement that success
has at last been achieved in this di-
rection will cause general astonishment,
although it has been known in private
circles for some time.
The credit for giving to copper the
adamantine hardness, which is de-
sired in the manufacture of the ore. be-
longs to Mr.. Il. A Stockbridge of %
Rockville Park Boston. This gentle
man is the producer of what is known
as the Stockbridge Non Friction, Non
Heating Metal. The importance of such
a metal is obvious VIXEN it is remem-
bered fer what multitude of purposes
copper is now utilized. Among these
may be mentioned armature bearings.
bushings, gibbs and engine journals.
BY the use of this metal mot boxes
loE railroad cars are Impossible.
| 1T is only about year and half
since Mr.. Stockbridge perfected his
process, but already it has been given
very severe tests which have aston
ished engineers and electricians. One
of these well and favorably known in
Boston says: With 40 years expert
ence with-alI kinds of metals for both
high and low speed engines I have yet
to find any that will equal it. I have
had it in constant use for some time,
and it seems to form a glossy surface
and requires less oil than any other;
also runs much cooler so there must
be less friction and for this reason out
lasts any other metal many times"
Another engineer, in a governmental
building. states: Il have had under
my charge 100-horse power engine.
equipped with wrist pin boxes of the
Stockbridge metal, which has been run
ming for over year under the hardest
conditions and has shown the most
satisfactory results, showing hardly
any wear. My previous experience has
been that with all other metals 1 have
been obliged to pull the engine to pieces
several times during the year TO re-
place these boxes. I have found no
metal to equal it in strength wearing
and non-heating qualities"
Dpcn a leading steam railroad
Stockbridge hardened copper driving
box liner was furnished for trial, and
applied to the left front driving box
of an engine over six months ago. The
superintendent reports: cit has given
JUS no trouble whatever since the en-
CINE went out of the shop into service,
is still working very satisfactorily, the
locomotive having run upwards of 15,-
GOO miles thus far
Armature bearings of the Stockbridge
metal applied on an elevated railway
after one years service did not show
wear enough to speak off,
Many written testimonials similar to
the above have been given.
Mr.. Stockbridge has been engaged in
mining operations in the West for the
past 20 years. He is interested in iron
mines. but has for a long time been
also experimenting to secure a superior
hardening process for copper. The
Stockbridge metal whihc he has so
successfully produced, according to the
testimony of engineers and electricians.
is destined to become known and util-
lied in time throughout the world"