The state rights democrat. [volume] (Albany, Linn County, Oregon) 1865-1900, 1882-07-28


Considering the merits Of glass as .
roofing material, . German authority
finds that hail Is not 30 destructive to
glass rs Is usually believed, as it sell
dom damages panss an eighth of an
inch thick, and thickness of q quar-.
t9 of an inch is almost absolutely safe.
The largest boring and turning ma
chine in the United States has just
been set up in the establishment of
McIntosh, Hsmphill & CT, of this
city. Il weighs 2s6,o0o pounds, or
lIo tons, is twenty-five feet high and
occupies space thirty ieet square.
It viii turn, bore and cut key way
in wheels Of any size up to sixteen feet
in diameter. by eleven feet wide On the
face.
Belgian firms prepare an ornamental
paper, which, at Erss sight, cannot be
distinguished from satin. The method
used is this: Common paper is covered
with an adhesive size, and asbestos,
dyed 20 the shade required, Is sprinkled,
upon the moist surface. Asbestos
takes up al colors, especially the anil
ines, very readily. The superfiuors
matter, when dry is easily shaken on
An inventor proposes to make ma
chine gear wheels of raw buffalo hide
By cementing and pressing together as
many layers ss are required for the
breadth Of the wheel. The bIanks
thus prepared are cut to form the teeth
In the usual manner with suitable tools.
The advantages claimed are smooth and
nsiseless action at very high speeds
and greater durability without lubrica-
tion.
An experienced cabinet maker says
that the best preparation for cleaning
picture frames and restoring furniture,
especially that Is somewhat marred
and scratched, Is . mixture Of three
parts Of linseed oil and one part spirits
Of fturpentine. It net only covers the
disfgured surface, but restores wood to
its original color, leaving lustre upon
the surface. Apply with . wo0llen
cloth, and, when dry, rub with woollen.
In order to remove rust and scales
from iron plates, wire, and other iron
and steel articles, Mr.. A. Horst places
them, without previous cleaning, inte
. wrought or cast-iron or retort on 9
6ne sieve covered with powdered cast
or pig iron. The retort Is closed with @
lid, and heated, if the iron is covered
with oxide or slag, to q white heat.
After cooling, the goods are found to
be quite bright aud clean. The gases
evolved during heating are absorbed
By the powdered metal.
By mixing three parts of powdered
silica (fints) and three parts powdered
marble, two parts china-clay and two
parts Of freshly-slaksd lime, paint Of
whitewash Is obtained, which, by fire.
quent wetting with water, forms .
silicate and becomes, after some time,
as hard as stone, while remaining por-
Gus. White Carrara marble, however,
Is not suitable for this purpose. The
four substances form the bsdy of the
paint, to which any ether color suitable
for mixing with lime may be added.
The surfaces are painted somewhat
thickly with this, left to dry for day
AMI frequently wster0i On the next
day, thereby the paint becomes weather
proof. This paint may be washed with
out losing any color, but becomes hard
or and harder, 50 that il may even be
cleaned with brush. The paint can
also serve a. a foundation for wall paint
ings, its porosity causing it to absorb
eolors.