The Baltimore County union. [volume] (Towsontown, Md.) 1865-1909, 1900-02-10

A Battery to be Shaken-A Monument
of Egyptian Religion-Food Preserva-
ton by Pressure-New Relief Painting
"A Prehistoric Surviva1-Importance
of Fish Waste-Old Butter Made New
Coal Filter-A Modern Language.
The newly patented storage battery of Mr. Fl.
II. Knepper is designed to Withstand shaking, as
in electric vehicles. The plates may be of the
Wsuaf nfnuS, nut are completely enclosed IN an
absorbent envelope of wood pulp or similar ma
terial, and in the spaces between these envel
opes perforated filters sheets of absorbent
material are placed. Both the envelopes and
the filters absorb the electrolyte and expand,
holding the active material from dropping to
the bottom of the CELL The perforations Of the
filters form enclosed receptacles, and permit
the use of greater quantity of the electrolyte
than could be used if the filters we're solid.
s~A
sThe Book of the Dead" of which new por-
tion has been issued by the British Museum, is
of great scientific Importance. 1t comprises
ancient Egyptian tomb inscriptions, which were
prepared to aid In keeping the body from decay
and thus ensuring future life. and its papyri,
ETC., date from about 1850 to 100 3. C. There are
five of the papyri, with Illustrations that are of
much interest and rare specimens of ancient
art An earlier volume illustrates the history
of the Book of the Dead" from 2c0O to l70OB.C C.
IA
From recent investigation on the influence
of pressure on milk, it appears that milk under
pressure of ten tons could be shipped 1--WE or
ten days journey without fear of spelling, but
the cylinders capable of carrying such pres
sure would probably weigh more than the milk.
Great pressure applied for short time greatly
delayed sOuring. After pressure of thirty
tons1Or eight to twelve hours, milk will usually
keep sweet three to five days, and after pres
sure Of forty tons at 1859 +. for an hour, meat
kept in good condition for three months.
&T&
instantaneous photographs taken by NJ. Louis
Boutan with a camera ten feet under water
have shown fishes two yards away and he es-
Inmates that good instantaneous pictures can be
had from camera submerged % feet below the
surface.
A rapid method of relief painting on wood or
stone, recently patented by Wilhelm Plinwald
OF Stuttgart. is reported to produce excellent
results. Over printing of wood color or col
ored glaze, six or eight coats of mixture of di-
luted size and chalk are spread, layer about a
hfth OF an inch thick being thus formed. Each
coat Is rubbed down, while wet, with pumice
stone, by which all pores are closed. Upon this
surface the design is painted or stencilIed in
moderately thick lines and with not too fat
paint, and after this is dry all the uncovered
places are treated with sponge or brush and
softened water containing little potassium BIZ
chromate. The design in fat paint remains
raised, while all the rest is washed away more or
less deeply The potassium bichromate pene-
~trates deeply, and after exposure to light soon
makes the mass impervious to water.
"a
HormQguilla, q beautifully resonant wood of |
musical Instrument. an invention that seems to
no hot
The instrument resembles in principle the xylo-
phone. with the addition under each piece of a
sounding box of a size corresponding to the
note. Some of the instruments, mounted on
stands, have as many as 40 tones, and are played
by four or five operators. The tones are not
short and sharp like those of the xylophone, but
are sustained by the sounding boxes in an organ
hks-melody.
The use of fish waste for OIL as NJ Z. Andreoli
points out. originated in France, although the
idea has not succeeded there. In England not
only fish guano but also insulators are made
from the thickened OIL and fiber saturated with
the oil is profitably employed for pulleys, car
rage wheels. saddle pads and objects of art.
Treated like similar insulating materials, the
oiled fiber is said to be superior to vulcan fiber
and hard rubber, selling at much more than
double the cost of production. NJ. Andreoli i'm |
proves the oil by ozonizing.
"a
A conical caisson, claimed to make It possible |
to work on a river bed at less atmospheric pres
sure than heretofore is the invention of a Rus
sian engineer, and is to be practically tested on
the Neva.
The process by which an English factory con- |
verts rancid butter, bought up at a low price, |
into fresh butter is stated to consist in work |
ing into uniform semi-liquid mass with fresh |
buttermilk, then blowing through this current |
OF hot air, and Gfterward current of cold air. |
The former xpels the butyric acid to which the |
smell and taste of rancid butter are DUE while |
any impurities present fall to the bottom. |
The cold air separates the butter into globules, |
when it is kneaded with water, salted, colored |
little if necessary, and is ready for sale as fresh
butter.
"a
Coal is among the materials that have proven
effective as filter for sewage. In a paper to
British engineers, Mr. Ernest Bennington has |
described a coal filter, ninety square yards in |
area, that has been doing good work at Wolver-
hampton. The coal, in sizes from half-inch |
cubes at the bottom to fine dust at the top, is
laid to depth of five feet over the drain pipes.
The sewage is applied from perforated surface
pipes, and percolates continuously through the
filter for twelve hours a day, the filter being
given like period to aerate. The work of fill
tration is at the rate of a million gallons daily
per acre. About ninety per cent of the organic
matter is removed, and in conjunction with set
ting tanks the results are even better.
80
A remarkable language, first made known in
1919. Int since forgotten, belongs to the Val, of
parts of Liberia and Sierra Leon. 1t is the only
true native writing of negroes, and the only
syllable alphabet existing in Africa. M. NJ.
Delafosse. who has been studying the subject,
considers that the alphabet dates back at least
200 years instead of to 1929 or 1889, as was for
merly supposed. The alphabet contains 226
characters.
novel carriage and bicycle lamp is claimed
by a French chemist 1t uses acetylene, which
is generated in porous vessel by the moisture
passing through from an outside water vessel,
the water not being in actual contact with the
carbide.
An electrical refrigerator, evaporating ammo
MIA by the electric current without machinery,
Is the idea of Scotch engineer.
FARMS FOR SALE.
A FARM CONTAINING 142 ACRES AND I43
APERCHES OF LAND, more or less, ~
20