The Ocala banner. (Ocala, Marion County, Fla.) 1883-194?, 1918-06-21

lucky Accordingly. It carried n the
feminine mind little value as I gem.
] believe that without using the
phrase, the Womens League for con
serV alton Of platinum mas already be
gun to Instill into the minds Of Am
er.can women what really rad 1as
it j. to wear metal that looks like
lead III rings. bracelets, etc. simply
on account OF its high price ! also
believe that the slacker wedding
ing made Of platinum Will soon be
r thing q the past
Il Is perhaps MOI fea-lzed ~ the
pubic that platinum : neces sary N
ne production Of nitric and sulphur
Is acid ne essential in All explo-
slvee
Y. i- Absolutely essential Il lie
O special promoters
ana no gun ran Re made withou, tie
use o1 pyIometer
so1ne necessary signal lpstraro ems
are oomt without platinum
Platinum is essential in me ON
position Of certain delicate gun ne
chaDsmE
The rapidly growing chemical IL
dlstries engaged il war WORE. need
platinum Ill their laboratories
Platinum IS required il the new
plants the government is erecting
with such teyerish haste for the man
ufacture OF nItrates from the air,
these nitrates being needed for fer
tilizers and munitions
Without platinum al experiments
il gases would be greatly handicap
ped
The socalIed platinum 1eed IN
electrical work is like he jewelers.
platinum an alloy Of platinum and r.
idium put with this difference mat
the proportion of iridium is ordinar-
lily greater IL electrical platinum thar
il leweei platinum and for some
work may h as nigh as fifty per
cent Unless one Is informed h does
not realize NAT each telephone and
telegraph Instruments mas platinum
contacts nat every nigh grace mag
meta for aiTpiaDe automobile motor
boat OF gas engine mas from .wo 70
SIX contacts Ct pIatinupl, and that the
multitude OF contacts on The tele-
phone switchboard on the relay II
suuments Of goth the telephone and
telegraph hnes are OF platinum
There are d large numper q dlf-
ferent kinds q electrical control
systems in whch platinum j. used.
one Of The most important ct which
are the tbermocouples fer ne cleo
trical control OF heat in furnaces and
ovens for Yarie1y o1 purposes While
the actual Qlantity Of platinum n any
single piece Of electrical equipment
is very small and its value almost
negligible comparison 70 me VA
liz OF the WDoie instrnm ent, yeT The
great numt1I q these lDstrom ents,
wnicn have teen made ana are te-
ing made tor The goeer1men. work.
calls for an uDbeGeveably ]arge guam
tity Of platinum and iridium &c tbeir
construction
The marvellous ddcrility q platin-
um one of the elements tha, make it
SC necessary Tor industrial work IS
better conceived when II IS consid-
cred that OUT Of Single Troy ounce
of the metal il Is possible to make
an almost Infinitely slender wire mat
would reach about SOC miles To
draw out platinum INTO 50 extremely
q fine wire II is covered with { thin
laye1 Of gold This new wire is
drawn to the thinness If the former
one and the GOLD is dissolved away
A smaI1 section Of this second wire
is then given coating Of gold. re-
drawn and the gold covering dissol-
we'd After this process has been sew.
eral times repeated the wire finally
secured, is still intact but virtually
invisible