The true northerner. [volume] (Paw Paw, Mich.) 1855-1920, 1882-06-02
THE WORKSHOP.

THE first type-setting machine was in
vented In Connecticut, In 1920, by DIR.
William Church.
BURNING kerosene oil can be extin-
guished by throwing milk upon it. A
persons first impulse is to throw water,
but the oil rises and the only result is to
make the first spread.
A NOVELTY in carriage springs consists
of an elliptic spring connected to the
vehicle body at its upper side, and on its
lower side to half-spring extending
across the body by iointed coupling
studs.
To MAKE cisterns and tanks water
tight paint thickly on the inside with
mixture of eight parts of melted glue
and four of linseed oil, boiled with
htharge. In forty-eight hours it will be
so hard that the tank can be filed with
water
To FIX pencil marks so they will not
rub, take well skinned milk and dilute
with an equal bulk of water. Wash the
ing) with this liquid, using a soft camel
hair brush, and avoid all rubbing. Place
upon a flat board to dry.
A ROAD locomotive for war purposes
was lately tried before Count Moltke.
1t weighed 283 tons, and drew easily
forty tons weight of guns mounted on
their carriages fully equipped. Its maxi
mum traction power is $50 tons and its
cost of maintenance is about thirty cents
an hour.
LUBRICATIoN.-For general purposes,
sperm answers best; next, winter strained
lard-oh. For high speed and heavy
pressures, add finest air hoated plumbago
Graphite, black lead). For cooling
heated journals use flour of sulphur and
olive oil. For curing badly scored jour-
mails use lead filings
A NEW filter consists of bottomless
Jug placed In an open vessel containing
filtering material. Around the sides of
the jug near the bottom is a series of
perforations, through which the water
precolates after passing through the
filtering material. 4 pipe inserted into
the neck of the Jug serves to draw of the
filtered liquid.
SILK workers from Europe are aston
ished to find here no schools for instruc-
ton in the mechanical arts and industries.
In every considerable European manu-
featuring town there are polytechnic
schools. Zurich, with twenty per cent
less population than Paterson, has two
such schools, where all the useful arts
are taught, even to basket making.
A COLUMN of water 2.3093 feet (or
27.71 inches) high, at 81 degrees
Fahrenheit, will exert pressure of one
pound per square inch. A column of
;o.h ~
Fahrenheit, will exert pressure of one
atmosphere Q4.7 pounds per square
inch); 1928 cubic inches, 220015 cylin-
drical inches, 330023 spherical inches,
or 6600 40 conical inches, make one
cubic foot.
THE largest tur1i- table in the world is
said to be that of the Chicago, Burling-
ton and Quincy Road, at Chicago, which
Is seventy feet in length In England
most of the roads have short turn tables,
and cut the tender loose from the engine
when turning it. In this country the
average length of the turn-table is fifty
feet, but the putting in service of heavy
engines necessitates the roads using
them putting in sixty-foot turntables.
THE comparative strength of wire and
manila rope was severely tested In the
attempt of the Persian monarch to tow
the disabled steamer Edam, as reported
on the 18th ult. The tow line, as de-
scribed by Capt. Duncombe, was a COM
posite affair, the two ends being of
manila and the central portion of wire,
the whole attached to the steamer by
spring. In repeated efforts the manila
yielded every time, and at last went to
pieces, so that the Edam was abandoned
to her fate. The wire portions remained
intact