The daily telegram. [volume] (Clarksburg, W. Va.) 1901-1926, 1906-11-21
THE 1IAKING Oh ST.TF
IissfEFlI IS u FiIcH FRopBGE THIS
GsEFUE sssTeNcE

y ~ ~ - r. ~ ~ ~ = - - = Nc
lsEF0E s9ssTtNcE
waste From IIlllls.i II6ris llrla lIoofa
Of Animals !. Uaea. bat tlae slncyys
OF A81naaIs s1nrialacFed Fer rood
Give the Best Resalts.
Few substances ARE more generally
useful than glue. At one time or IN
other nearly every householder has 70
use Il. yet few persons know anything
about the dlherent kinds or which Is
best for the purpose In hand.
For ordinary repairs to articles OF
wood. especially Il no severe strain Is
to be placed upon the object, the pre-
pared Clues are convenient and AIDE
auate. They are therefore often chosen
In preference to the old fashioned sort
But for strength and durability no glue
which Is applied cold can compare with
the kind that Is hrst melted In a glue
pot and then applied hot, and of this
kind there are many grades, which
vary greatly In quality.
The manufacture OF hard glue. as 1t
Is usually called-that e, glue which Is
to be used hot-Is to q large degree the
utilization of waste products. The raw
materials are pieces and scrapings from
hides. chips and dust from horn work
ing factories, parings from boots and.
best Of all, sineWs from animals killed
for food In the great slaughter houses.
The frst process Is q soaking In lime
water. made thick enough to be called
..rnIIly of lime" In this bath the sinews
and other glue material remain Tor two
weeks or more, In order that an the
crease and blood may be eaten away
but Immediately ON removal the ma
terfnI % exposed to currents OF ar,
which allow any adhering lime TO al
serb carbonic acid This checks the &C
don OF the aIkall on the animal matter
and makes It possible 20 keep the ma
teriaI In the dry state for an indefinite
period or until It 10 desired to use II.
Previous to boiling. the scrap Is again
Immersed for twenty-eOur hours In
bath of milk OF lime. It Is then
placed In a caldron built on the plan
OF the housewives familiar double boil
or. This kind Of vessel Is necessary to
prevent 'Eburnlng on" Water is add
ed, and the mnss Is gently boiled until
a firm geIatinous liquid results from
cooling.
The clear portion is now drawn on
from the first cnldron into second
vessel and Is known as ''hrst run sineW
glue..-the best of all. A small guam
ed for the purpose of clarifying the
glue by causing it to precipEtate its Inn
purlties-
In a second double boiler the liquid
remains several hours, till It Is perfect
" clear, aud is then run OF Into the
congeaIing boxes. over the bottoms of
which it spreads out in thin sheets.
The boxes are run into the cooling
rooms. where they remain until the
glue has hardened enough to be re-
moved In sheets, but not enough to be
brittle. In this state it IS ready to be
cut
The sheets are laid upon boards
which have previously been wet to
prevent the glue from sticking. Here
the cutting is done with tightly stretch
ed brass wires, as a hrlzfn of butter is
cut by the country grocer.
After a further drying on revolving
MEETINGS the sheets are dipped In hot
water and rubbed with a brush to give |
them a polish. They then pass to the |
kIlns for the stove drying" This re-
moves all moisture and leaves what APP |
pears to be a sheet of translucent vel
Iowish brown bottle glass. Indeed. the |
best sIneW glue seems on casual ex-
to be nearly as bard as |
glass, and a quick. sharp blow viii /
and vitreous. The best OF this glue is
light In color.
The resIduum left in the caldron
when the ''hrst run" of glue was drawn
Oh is boiled and boiled again, 50 long
as any gelatInous matter can be ex-
racted from It. The product Is glue
Of Inferior grades, OF course, but use
full us sizing and for other purposes In
various arts and industries. Although
5till classed as sinew glue, the later
runs" have not the strength OF the
first run. They are darker and less
translucent
Not many years ago nearly all the
pest glue was sold In sheets. Today
oy far the greater part Is ground at
he factories to the dneness of orCli-
nary sawdust Since In this form it
iissolves more quickly. 1t is SO pre-
erred by woodworking factories,
which use large quantities. but as the
,hnnces of adulterntion are greater
when the glue is ground the purchaser
Fho wishes to be sure OF strength and
durability will choose the sheets-Ed
ward wDliston Frentz in Youths Com.
,anlon.