The evening telegraph. [volume] (Philadelphia [Pa.]) 1864-1918, 1864-10-22

NOVEL APPLICATION or BLBcrKo-hAoNRTtsA
The application Of oectro-magneNsm 10 the
stoppsgo Of railway cars when IN motion rs pro-
posed. In carrying OUT this plan it IS suggested
that betwcen the wheels on each side OF every
railway car there should be placed an electro
magnet The MAGNET would have slight move
mCnt up and down between two grooyed blocks
All NCd 10 the car, or through hollow cylinder
ia straight magnet we're used. When out Of
action the two poles Of the mnguct woald DO sup
ported either by q buffer spring or by stcelyard
weight 80 that a distance not exceeding an inch
would exist between tho poles Of tho magnet and
the trBm rail
IN The tender Of the engine is to be carried
vpltuc battery, from one pole q which proceeds
a 'uiCS Of cOuueC'ablc CLgins, which link each
electro. ma net 70 the next throughout the whole
Inc, one Ci of the chains now made continuous
Icing bought to the battery g. be connected with
The ,ppo itc pole Whenever such connection may
be dCsiJCd.
Above the battery Is to be placed an electric
dial and connecting handle for the use Of the
driver 20 as 70 Cnabe him at any moment to
close or break the circuit or so graduate il as TO
permit him 10 govern the connection between any
number Of piatVsi in other words, so as TO enable
him tu govern the force Of the current as well as
its connection and scOunectiOn.
CoLLoDIoN IN wATERrEooPINa.
Some improvements have been made in tho
manufacture OF waterproof aud other fabrics as
also OF moulded or formed articles. To this end
the inventor takes bait fleece or thin layer of
cotton or other fibre, and spreads over the same
q tllu COdtiug OF CullOuiOut WnlCu IN hardening
cements the tibrCs firmly together, and produces
a fabric moro or less waterproof, according to the
quantity Of cOlodon employed. The cotton or
fibre thus used is not chemically prepared, and
therefore Is not acted ON by the solvent Of the
collodion as it hardens. Articles may In this
manner be made OF any desired shape, as for in
stance, tubes may be produced by tapping the
ball or layer Of loose fibre around form, and
then applying the colodon. Gloves, shoes, and
boots may be made in this way.
BTTUnPNJZED PAPER PIPES
The ingenious idea Of hardening paper by
means of an admiXuro Of bitumen under the
influence Of hydraulic pressure, 60 as to convert
Il into a substitute for iron, Is due to NJ Jalou.
rcau, of Paris; and these bitumiuous paper pipes
are not only curious, but commercially practica.
bic and useful. The material thus produced
while il possesses all the enaCity of iron, with
one-half its specific gravity, has double the
strength Of stonewsre tubes-Without, moreover,
being liable to breakage, as in the case of all
other material.
In order to test their strength, two Of these
biuminouS paper pipes, Of five inches bore and
onC-hRlf inch thick, were subjected to hydraulic
power, and they sustained without breaking or
bursting, the enormous pressure of two hundred
and twenty pounds to the square inch, or equva-
lent TO five hundred and six feet head of water.
In another experiment TO test the transverse
strength Of the material of pipe Of twO-inch
bore, 1t required breaking weight of over four
hundred pounds to effect fracture.
NEW KIND or OMNIBUS.
Some of the foreign journals describe a new
kind of omnibus, which Is divided into separate
well-vcntilated compartments, disposed in two
rows, back TO back the passengers sitting alone,
each in one compartment, facing the pavement
on their respective sides. small window, with
q shutter on each side, puts in communication
the contiguous compartments, If agreeable to
both parties TO converse. The compartments are
fitted like first-class railway cars. portion at
the back of the omnibus Is left undivided, to con-
tain four persons. A patent signal or bell puts
each passenger in communication with the con-
duCtor.