Watertown republican. [volume] (Watertown, Wis.) 1860-1906, 1883-03-21


also cheap. If used for woodwork. give
1t two or three coats of the silicate of
soda as a preparation, and for the last
coat mix with whiting to get body, and
color to any desired tint or shade. In
general practice the paint should be of
the same consistency as ordinary paint.
and is applied In exactly the same man
ner. Tungstate of soda is rather better
than the silicate, but is more expensive.
Oil and Paint Review.
HEAT WITHOUT FIRE.
A machine is said tohave been invent
ed by mechanic for the generation of
heat in buildings where power is used,
| without fire. 1t consists of an iron CYL
| lnder about foot long and foot in di-
ameter. The bottom of the cylinder is
a hardened plate upon which another
plate of the same diameter turns-the
pressure being regulated by screw, &C
cordlng to the power that is to be ap-
piled and the amount of heat desired.
ALI the space not taken up by the wheel
and shaft is filled with water. AS soon
as the wheel is set in motion the water
Is brought up to high temperature and
the cylinder becomes stove. which ra-
dates heat from the whole of it's exterior
| surface.
| GRAND PIECE OF ENGINEERING.
A survey Is about being made through
the heaviest portion of the Black Can
| yOn OF the Gunnison. For long dis
lance the walls of syenite rise to the stu
pendous height of 5000 feet, and for l.
500 feet the walls of the canyon are
arched not many feet from the bed of
the river. If the survey is successful
and the Denver and Rio Grande is built
through the canyon, it will doubtless be
the grandest piece of engineering on the
American continent. The river is very
| swift, and 1t is proposed to build a boat
at the western end and provision it for a
length OF time, allowing it to float with
the stream, but controlled by ropes. If
the boat goes the chances are that the
baby road goes, too.-DenUer Tribune.
HOW TO TAKE OUT SCREWS.
One OF the most simple and readiest
methods for looseDing rusted screw is
to apply heat to the head Of the screw,
A small bar or rod of iron, fiat at the
end, ii Redeemed in the fire and applied
tor couple or three minutes to the head
of the rusted screw, will. as soon as it
heats the screw, render its withdrawal as
easy with the screw driver as if it was
only recently inserted screw. As there
is kitchen poker in every house, that
instrument, If heated at its extremity,
| and applied for O few minutes to the
head OF the screw or screws, will do the
| required work of lOOsening and an ordi-
nary screw driver will do the rest with
out causing the least damage, trouble or
vexation of spirit In all work above
the common kind, where it is necessary
to use screws, and particularly In hinge
work and mountings, fancy fastenings
and appliances affixed to joinery or fur
niture work, we would advise the oiling
of screws or the dipping their points In
grease before driving them. This will
render them more easy to drive and also
to withdraw, and it will undoubtedly re-
tard for longer time the action of rust
lng.-LOndOa Builder.
| WHITE BRONZE.
Experiments are being made, accord
ing to the Polytechnische NOtizblatt, in
Paris with new alloy having white
color yet containing no nickel. 1t is said
to be very strong and malleable. 1t is
made of copper and ferro-manganese,
the proportions being varied according
to the purpose to which the alloy is to be
employed. An alloy of forty parts of
copper and sixty parts of ferro- mangan-
csc, with a suitable quantity of some ap-
propr1ate tux, produces metal of such
tenaclty that ii surpasses the best steel
armor plates The melted mixture is
cast IN blocks and is perfectly malleable.
To obtain white metal that can be
rolled out in sheets, the above alloy is
melted again, and 20 or rs per cent. of
zinc or white metal added, which imparts
to it the desired quality. A plate of the
first named alloy two inches thick was
found by experiment to offer more re-
sistance to a cannon ball than steel ar
NOR plate Of the same thickness. This
new kind of F'whlte bronze " is not to be
confounded with the alloy used in this
country under the same name for grave
stones and monuments, and which con-
sists principally OF zinc.
RADIANT ROCKS.
A New York medical man tells this:
GA friend of mine, who lives in Salt
Lake City, sent to the old country
recently for the younger brother of his
gardner to come over, and in course OF
time the young fellow arrived, and so
green was he that there was no end to
the jokes played on him, but the final
came one night when one of the party
asked him if he knew he was near the
entrance of Hades. Hemade light of it,
of course, but the iokers offered to prove
it, and after dark he was taken out to
rocky place beyond the city where there
was a mass Of loose-grained, light
colored, crystalline, limestone, known in
| Salt Lake as Hellfre Rock There it
was explained that hell was so near that
by even knocking on the rock fire would
appear, and, handing hammer to him,
they told him to give the rock a tap,
which he hid, the lowimmediately pro-
ducing blue fame. Then the entire
party struck it, and amid the blue lights
the victim started for Salt Lake, and the
next day had left the city. This rock is
well-known limestone, resembling a
soft sandstone, colored somewhat with
oxide of iron, and SO phosphorescent
that the slightest scratch or blow pro-