Daily press. [volume] (Newport News, Va.) 1896-current, 1906-11-22
THE MAKING OF GLUE
MATERIALS WHICH PRODUCE THIS
USEFUL SUBSTANCE.
Waste From Hides. Horns and IIoofs
OF Antmnis Is Used, hut the Sinews
OF Animals Slaughtered For Food
Give the Best Results.

OF Animuls Slaughtered For Food
Give the Best Results.
Few substances arc more generally
useful than glue. AT one time or an.
other nearly every householder has to
use 1t. yet few persons know anything
about the different kinds or which Is
best for the purpose In hand.
For ordinary repairs 10 articles OF
wood, especially IL ITO severe strain is
to he placed upon the object, the pre-
pared CLUES are convenient ana ade
quntc. 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 first melted In glue
pot ami then applied hot, and of this
kind there are many grades. which
vary greatly in quality.
The manufacture of hard glue, as It
Is usually cnllcd-that Is. glue which ls
to be used hot-is to II large degree tho
utilization of waste products. The raw
materials are pieces and scrnplngs from
hides. chips and dust from horn work.
Ing factories, pnrinSs from hoofs and.
best of ull. sincws from animals killed
Tor food In the great slaughter houses.
The first process Is II soaking In lime
water, made thick enough to he called
milk of lime" In this bath the sinews
and other glue material remain for two
weeks or more, In order that all the
grease and blood may be eaten away,
but Immediately on removal tho ma
terial Is exposed to currents of air,
which allow any adhering lime to nh
sorD carbonic acid. This checks the nc
ton Of the nlknli on the animal matter
and makes it possible 10 keep the ma
ierlal in the dry state for an Indefinite
period or until II Is desired to use It,
Previous TO boiling, the scrap Is again
Immersed for twenty-four hours in Il
bath of milk of lime. 1t Is then
placed in Il caldron built on the plan
of the housewives familiar double boil
or. This kind OF vessel Is necessary to
prevent burning on" Water Is add
cd, and The mass Is gently boiled until
II firm gelatinous liquid results from
cooling.
The clear portion Is now drawn OF
from the first culdron into Il second
vessel and Is known as FIRST run slnew
glue"-thc best of all small guam
tity of alum dissolved in water is add
ed for the purpose Of Clarifying the
glue 10y causing 1t to precIpitute its i'm
purities.
In second double boiler the liquid
remains several hours, till 1t Is perfect
~ clear. and is then run Off iuto the
conSealing boxes, over the bottoms of
which 1t spreads out In thin sheets.
The boxes arc 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
ell brass wires. MS Il iirkin of butter Is
cut by the country grocer.
After further drying on revolving
MEETINGS the sheets are dipped in hot
water and rubbed with brush to give
them Il polish. They then pass to the
kllns for the stove drying" This re-
moves all moisture and leaves what ap-
pears to be sheet OF translucent vel
lowisli brown bottle glass. Indeed, the
best sinew glue seems on casual ex-
animation to he nearly as hard as
glass. and quick. sharp blow will
produce fracture TINT is clean cut
and vitreons. The best Of this glue Is
light in color
The rcsiduum icft IN the caldron
when the first rum Of glue was drawn
off Is boiled and boiled again, so long
as any gclatin0us matter can be cy-
trnctcd from 1t. The product Is glue
OF Inferior grades. of course, but use
full rs sizing and for other purposes in
various arts and industries. Although
still classcd rs slnew 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
best glue was sold in sheets TOdny
by fnr the greater part is ground ut
the factories to the flneness OF ordi-
| nary sawdust. Since In this form It
dissolves more quickly, 1t Is so pre-.
ferred by Woodworking factories,
which use large quantities, but as the
chances Of adulteration are greaier
when the glue is ground the purchaser
who wishes to be sure of strength and
durability will choose the sheets. Ed
ward Williston Frentz In Youths Com
pnnion.
Why Dreams Come True.
There Is scientific explanation OF
the fact that illness, at least, can be
fnl,ninl1 m