New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1875-01-29

perforated hOta tank ana s...ea5
OF steam. In another, hot wator. o. stoa v.rsJ
surface and In still another the Is srperheated
before use In still another movable plates arc cot
These examples give idea OF the amount OF ihSe-
nuity lavished upon the subject but nothing yet don
how to cheaply aud quickly remove snow from the
The cost OF coal for melting would proOa
bly, not prove insuperaDe obstacle but the freezing
Of tho water resulting from the operation would he q
greater evil than that sought to be remedied Inc
writer believed that melting the snow would 10 more
economical than carng IL away but In order to 40 ths
the must be swept from the street-way elhcr 10
the travelling machine or To fixed pipes, previous 10
melting and the water must be conducted direct 10 the
10 prevent the formation OF ice In tho streets
He knew Of no means by which this could be accom-
pshed but expressed the opinion that improvements
yet to be made will in the future make snow melting
the satisfactory method OF cleaning city streets IN
Winter.
Prof. william Robinson Of St. Petersburg, Penn. sent
paper Electricity for Railway Signaling, which was
read by the Secretary The paper had reference TO wnat
Ia known IA automatic signaling, ia which the locomo;
In its movement puts In motion mechanical
devices that IN their turn, operate an electric circuit 10
ring bell or display cOl0red disk In the earlier sys
TENS reliance had upon wires, which were IN fact
simply telegraph wires To provide the electric circuits
and set In motion the signal mechanism IL 10 now
found preferable to the track itself for the circuit
and the most approved and efficient automatic appIra
work this plan. 50 far as Is known me hrst
patent OF the year 1913 but this suggestion merely
In 1852 however. English patent was granted wnlch
communicate between trains on the same
line and between trains and stations for which purpose
impractical part OF this system Is that IN order 70 nebe
1t operate it Is necessary, the inventors say 10 nsI
other, order that electrical connection may not Do
established between the opposite rail lines by the wnees
to use short sections Of rails 20 feet long insu-
lated from the rest OF the track by gnttapercha or
circuit wires When the locomotive passed upon ms
insulated section tho wheels and axle established
metallic connection between tho circuit wires, 10 close
the circuit and start the signal. This, however ron
the OF wires, virtually wire system and
To ms ohto In
covered invention consisting In cOnnectnB the Two
poles of battery with the two rails, the junction OF the
two being only completed at the time the wheels OF
carriage united by their axle over the TWO ras so
that at all times, except when carriage or tfaln
Is on the line rails circuit will not be complete,
but long carriage remains on them the Datery
will work After thus creditno British inventors win
the primary idea the claimed for those OF ibis
country credit for It's application to any useful purpose
described what he believed to be the most usetnl
construction and the mode OF operating OF an automatic
railway signaling apparatus. This system involves
new principle The rail- sections may be one or several
miles length at end of tho section the battery Is
placed pole attached to either rail- while az inc
opposite end Is placed the magnet, one eectrode
attached either rail Thus constant metallic circuit
Is established through the rails ana magnet Ihe prIh
cipe of operation Is TINS Wne9 ,S seV era
which offers tho least resistance 10 It's passage
The rails being metal OF largo cro5ssection and
conductors to any surrounding media hence electricity
follows rails and keeps this magnet magnetzed even
the Tho acts nOminay to keep the signal
disk concealed however train enters upon the
axles Instantly offer q shorter circuit for the electric
current because they are better conductors than the
small wire or the magnet. This demagneizes the
magnet and 1t to release It's armature, ana the
movement OF the throws the signal disk into
position to indicate the approach OF the trdln Among
other advantages claimed for this system Is That OF lnd
eating tue presence OF portion Of train on the sec
ton IN those where train Is broken by tue de-
taChment of the forward from the rearmOst cars
j. H. Beardsley's paper devoted to the suhect or
the protection miners, flFemen 5tOiorS lrOn-pui-
ders and others whose occupations subject them 70 the
action rresprable gases dust, excessive heat &c
proposed the safety masks, htted with eye
pieces protect the eyes with curtains or pieces
OF porous material to cover the face and neck, ana
nOistened respratOrs applied to the neck and n0sri'
The writer gave the results OF number OF experiments,
showing that by thus protecting the eyes and respra
tory organs, respiration, unimpeded. Is possible Tor
a time varying from 20 minutes to an hour ~ An atm0
sphere chOked with smoke from burning refuse, sui
pnurous acid gas and other noxOus substances hat UNI
der OF her conditions would make breathing impossible
He urged the application OF TINS principle for hremen
nm the rescue of persons from burning buildings and for
many other purposes, far preferable to the ~ Gsh
nfe-saving armOr which metal reservoir OF com
pressed is strapped on the back anu provided WIN
mOuthpece held between the teeth CT the person us
the apparatus.
Previous to adjournment the President announced
that the second quarterly series Of meetings Tor the cur
rent year would be held I'm April next, when number
OF lectures by prominent American and Ehglish Gu
gneers and scIcutists would DO given before the
Society.