The home journal. (Winchester, Tenn.) 1858-188?, 1883-06-06
CURRENTS.

! To MAKE hprd lead pencils consia-
cradle quantity of fine clay is mixed with
the powdered graphite.
OSE ounce OF gold may be beaten ont
so aa to cover 100 square feet Of surface,
but the leaves are seldom made so thin
100 square feet 10 the ounce troy being
the usual extent.
In strength granite exceeds all other
building stones i'll common use. It's
weight is about 1G6 pounds to the cubic
foot, hence u cubic yard weighs about
two tons. Granite usually contains
about one per cent. of wafer.
THE. water power at Lowell, Massa-
chusetts, was begun to be improved for
general manufacturing purposes in 1922.
The Mcrrimac River Mt this point has n
fall OF thirty-iivo feet, and furnishes ut
minimum, about ten thousand horse
power during the usual working hours.
Hollow steel shaiting is being III
troduccd into France. 1t is made by
casting the metal round core Of lime,
the ingot being finally rolled into shaft
ing, the lime core going with it and
diminishing in diameter in the same
prop as the metal, oven when tho
total diameter is reduced as low US one
fourth Of an inch.
The earliest application of water power
to general manufacturing purposes APP
pears to have been at Patterson, New
Jersey, where 1.-THE Society for Estab-
fishing Useful Manufactures was
formed in the year 1871. The Passaic
River at this point furnishes, when at II
minimum, about eleven hundred horse
power continuously, night and day.
To MAKE fishing lines waterproof,
take of boiled oil two parts and gold size
one part shake together in n bottle,
and the mixture is ready for use. Apply
to the line thoroughly dried, with u
piece Of flannel +; expose to the air, and
dry. After using the line two or three
times it should have another coat, the
application being repeated when neces-
sary.
BRICKLAYEEs u,nke Use of spirits OK
turpentine, and also of vinegar, for the
purpose of removing mortar stains from
pressed brick fronts, the materials beng
carefully applied with n sponge or rag.
Any acid applied in the above manner,
in very dilute form, would answer the
purpose. Vinegar being very dilute
nscetic acid is probably as good recipe
as can he given.
ARTISTS proofs of an engraving are
impressions taken with great care, under
the SUPERVISION of the artist himself, be-
fore the regular edition is printed. They
are always on the best of paper, and arc
more perfect than those printed subse-
qnently from the same plates. AS but Il
very few are ever struck off from tho
same plate, they are highly priced and
command large prizes.
BEssEMER steel is made by blowing air
through melted cast iron, thus burning
silicon and carbon out of the cast iron.
After the silicon and carbon are burned
ont. melted spicgeleisen or fcrro-nmga-
nese Is added TO the charge. The car
bon in the spiegel recarbonizes the steel
to the desired point, and the manganese
mites with and removes the oxygen
which the air used leaves " the steel.
4 NEW file should always be used with
Il heht pressure until the very thin
sharp edges are worn oil, after which a
heavier pressure may he used with much
less danger of the teeth crumb ing at
the top or breaking Of at the base.
Every iiler should keep portlally-worn
file to usa first ON chilled surfaces or
gritty skin of castings, or ON weld
where horax or similar iluXes have been
employed, or on the glazed surface OF
saws after cumming.
BLISTER steel is made by heating bars
of wrought iron. bedded in charcoal, III
Theoretically sealed chambers. The car
bon of the charcoal penetrates the hot
iron, converting it into a crystalline mass
of crude steel Large bllsters rise on
the surfaces of the bars. giving the name
blister steel to this product. German
steel is blister steel rolled down into
bars. 1t is used mainly for tires and
common springs, but is being rapidly
superseded by the cheaper g. Jdes OF
east steel.