Spirit of the age. [volume] (Woodstock, Vt.) 1845-1913, 1897-05-15
HOW CElLULOID is MADE.
Produced by the Combined Action of
Pressure and Heat.

rfoGureu by the combined action OF
Pressure and Heat.
Celluloid il made by the combined
action of pressure and heat, or with
the aid of solvents, in that case i'll
the cold. The camphOr is dissolved
in alcohol, as little Us possible, and
the solution sprayed through rose
OH to the pyroXylin, which must
be perfectly dry. y second layer
of pyroNylin is added, moistened
again with camphor solution, and
SO on The selatinous lumpis work
ed between iron rollers, to which it
adheres. The layer is split longitu-
dinully and rolled again.
Tho cakes, o. ( inch thick, are cut
into plates about . feet by 1 foot,
which pass for - hours into ny
draulic prcsaos, which are douhly
steam j;aAut,d lie mass is now
sawed into plates, which are dried al
about % degrees L. for Il week OF
two, and finally cut into smaller
pieces, from which the articles are
stamped. Further particulars are
difficult to obtain. The writer in
the Gummi Zeitung believes, how
ever, that Musnus d Co. of Berlin
pour 100 PARTS of ether on 80 of
collodion wool and 70 of camphor
and stir til" covered mass in earth
enwure We. sells with rubber sticks
until Homogeneous gelatlnous
mass is cli.:inll, which is then loil.
ed. At -. Etlis eilyl alcohol is
said to lie used. Apart from dye
stuff and other additions the cellu
loid consists IA AN avC1GSo of two
thirds OF pyroXylin AID one-third
Of cumphor Ace camplor imrarts
an unpleasant smell end inlTairs the
strength Of the product Tho chem
ical ,Cl. tiiltiOn OF ccliuioid is still
doubtful.
Tho celluloid is generally sup
piled in rOus Gf 3 fC>t in length, OF
in plates ui - i!ches by II inches,
Of Il yellow!.;.4 cols,, unless dyed. 1t
cannot be cN,,io,iul by heat, blows
on friction. 1t burns, Lit tho flame
can o"slly be blown out. 1t leaves
an Il #.v! :, ~, which contin-e.; to
SPAR. - i,4..,iy for NOimu time. 1t il
s>iullein alcohol, while either
CT thu il .il..a alone only at
tilc.ti Il t., i )hor.
Cou~3uuratei acids and caustic al
kali, ,iI,n AD1.;3 or curDonizc the
crllui id. N'nilD Tho finished article
il not d.! eru;I3, tho manufacture
j. H.. hiy ao. Various additions to
lenu,rt:. r {, ,itl i'll less inIi,,.. :. ma
Bio :.lr ii.,. y required. The small
er ulti,.,J are cut ready III the cold,
dil1tu MO hot water, bent and
shaped, al. plunged into cold water
again to re,ain their shape. Larger
alticics tic retsed in heated molds
If lll t:;ted DUNG farther opera
tiGi-E, lie ali !ci iCse their shape.
The comb Manufacture is simpler
than with had lubLer. The teeth
i1c STAMPED with dyes, by hand OF
machinery, and thcn l.olislied with
pumile stone and cold water. The
dyes arc generally added at the
time when "a pyroXylin and cam
plior arc mixed. Striped articles are
obtained hy snlcrrosition Of plates
Of different colols and cross cutting
Of the complcssed blocks. Surface
dyes may be dissolved i'll acetic acid
or acetic ethels which slightly at
tack the celluloid Trade Journals
Review.
Ii Shout be nadc Il matter OF publ c
knowledge that De Wits Witch Hazel
Sa'vc will speedily cure piles o: the lo'g-
est standing 1t is the household favor
it's for buruS, >cal1|. cuts. bruises, and
sores Of all kinds.
Scott Tinkham. Queclleci a. Il, Nor
gan, Woodstock l.. j. Nj. Marcy, Tatts-
willie.
"What do you intend to make of
that boy when he grows up?
81 don't think he will need any
He seems to be cut out for
Il fnlncier. Every time get him a
toy bank, he goes after it with