New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1908-05-17
\ TINE TESTED INSULATION.


He can see TO it that his architect specifies an
insulation that has stood the supreme tests OF
time and exposure: one. for example like the
"Kerite,' which has for many years-a half
century or more-been used, first for the teie-
graph and cable lines, then for electric light and
Telephone service The variety of fields in which
it has proved and is proving, its capacity and In
tegrity is sufficient warrant for using It mere as
exemplar Of what an insulated wire shouIn u pg
space here but chief among them are the Western
Union and Postal Telegraph Company, the allied
Bell telephone companies which operate throug,n-
out the United States and Canada. and other tele-
COMPANIES steam rallToadsa eteferic ousrnme er
il is used in in all fields where electricity Is
The roster of Kerites virtues also too long for
insertion here. but present it's more remarkable
qualities. it is said To successfully resist the cor
rosion Of earth, air and water its hexiolllty ana
rmness. and its insulating properties are impaired
by neither heat nor cold. at their extremes-tests
have demonstrated it's ability to endure Iorg COL %
tinued heat at 200 and for shorter intervals at 20
immersed in boiling water: strong solutions Of al
kalies njure it. while even acids act upon
than they do any other insulating covering; min,
eral oils. roots of plants do not affect IT, ana
the action water either salt fresh serves only
~ he tTo-es which has been found to render all
81 ther ins.iations useless it has shown itself
like gutta perche. invulnerable both to the ravages
of the white ants Of southern countries and 10
the attacks of teredo worms, those invincibe ma
rinc borers Of southern seas
The qualities above portrayed insure us ouraoi.
jtv in all climates and even under the severe test
of storage
Vi,lcsnized rubber may Withstand, in fact, they
will suffer great and rapid deteroration-it under
to devise test. that of FIRE, that could prove
even that most subtle OF fluids. that fiery current
or fire originating agency-e!ectriclty is cohlroii-
ed mastered and kept to its Legitimate course the
copper wire. inescapably and undeviatingly. and
not permitted 10 wander a1eld either TO set goods
corrode the metal fabrics of costly structures,
rms 81 ehicb has never been disclosed II has
been on the market now for more than half cen
hen ~ raiseH as TO its ali around efficiency have
been effectively answered through tests OF the
conditions Austin Goodyear Day. the associate of
the Goodyesrs IN ifs Having learned
from his experience with crude rubber that its
solving the dificult problem of finding something
was w2ad snS 50 Would increase it's life
After many years Of research and experiment ne
hopes By amalgamating certain materials
through very intricate chemical process ne Oh,
Compounded with Para rubber form "Kerite In
satTe 81 crude gue6er Itself made with the latter
perfectly homogeneous compound u.-,..
for electrical conductors And Gather Time. he.
material. this wonderful preservative: Kerits
say an' sef1es being
feet condition and giving as Eood mo not b beeF he
yond question proven that Kerite insulation does
due to certain popularity of the Crude Kerite"
The fact that kerite becomes even better insu-
laror with time means 80 its that he has
absolutely fixed factor Of safetythe best possible
insurance. There is other rubber compound,
or deterorates. owing to the drying
ont of the rubber and the consequent decrease of
the insulation resistance, that II is impossible
10 tell AT what time il may become effective and
cause serious resuts All other rubber COM
nounds even those of the highest grades,
made nv combining mineral matter, such as tale,
whiting zinc oxide, lead oxide, etc with the rub
t.r This mineral matter being dead" propo-
stttou the life such installations is limited to the
Tse Of the rubber In them, which Is. As every onA
now kneWs, ahoEf-A common sxAznvle % this -