The sun. [volume] (New York [N.Y.]) 1833-1916, 1897-12-19

FABRICS are now produced. with nns eject, by Engish
manufacturers, the process being . peculiar one. A
layer OF the usual rubber mixture II spread on the
fabric to be waterproofed. this proonng substance
being compounded with nneiy coniminuted nsbestos.
either teforc the operation OF proonng or by spread.
ing tho asbestos powder on the prepared cloth. The
particular method OF applying the asbestos IN deter.
mined, in each cNse. by the character Of the orpa-
mental erect TO be produced, for most purposes, a
proportion of equal weights Of the comminuted and
the desired results, both in respect 70 Quality and sp-
pearance. In those cases where tho asbestos IA an
piled to the rubber mixture. after beina spread. an
even layer OF fariuA or other similar material IA an
piled; and the printing operatiou IA then performed
by means OF rollers, biocka stencils, stamina. &c.
-
inc Iacts demonstrated that aluminium Il ~ eH-
oeiient . puriner OF water ~ there iR. Tho saita OF
.nhs metai arc ihsoiuoio In water. aud. consequently,
MS pam mat when these saita are formed the water
can De STRAINED and the Impurities removed therefrom.
Fornaps tho most practicable method OF purifying
WAFER oy this means 10 the trough method, as lis
caled' the trough being composed Of plates OF alumni
mum ana zinc or Iron. six or eight inches apart. One end
ottne TANK anords an entrance for the volume OF water
~nlch pasaes over the top OF one plate and thence
under the plate next to II. this being accomplished
ny the fact that the elevation Of the several plates
na'nerent' In connection with this tank. or trough.
there 10 an electrical generator OF moderate size. and.
'noush aluminium viii not form the negative pole OF
a current. the other plates used win. Now. a. IL Ii
always the case that. when an electric current comes
In contact with water In thiu manner. IL decompo,ea
q certain portion OF tho au,d. oa u vere. tho re,uit Of
such accommodation IA that ozone IA formed and
oxygen freed tho manning Of tb,. b,,nr IN, sbso-
lutte extinction OF fife in any microbo, or organic
matter which the water might contain. leaving IT.
after meeting the publication tho salt, of aluminium
occasion AS clear and hcaithfui NJ the water which
lows from tho purest sprtne.
Tho results OF experiments lately carried on a. the
brick works near Newburg, on the Hudson, in substi.
tuting fuel oil for wood or coal in the operation OF
burning are reported a. being very satisfactory.
The fuel oil in questionable product left after crude
petroleum has been renned-has been used for some
time past a. fuel for engines and furnaces, but Its
adaptabllity for tho peculiar necessities involved In
the operation of burning pottery. or brioka. IN of ouite
a. ,no,.,,.oa A. ..sNs -
In ,,r-v,,. an, All. - - :.
.-r,rc.w.n, ~. ~. - ~. - -.
h. d,roo,.d -, nn,,.-. .as... -
.nv NAT =, a.. Az, =, ,ho III, A. .~D,.,.... =,
the detau, a, mi, ,v,tor, .hov. q, hr,.. ,h.. ,n.ou
run. ,ror = ,.nt a. n,no. .rornd en- -. - a..
tur .rd ga. d,roo.,, w. . 49,. =. ~. 1870
the ,nt.r,or and from an air re..rvo,r On Ton ., ,ho
HIN . forced ,,r dr.r,h. .,..d. In -, ~. ~, :.
tho bprner A. .,re.dS ,e,.rr.d "a In N. ,,.n,.,,.,,
a, t,,. .v..u ,h. ,,1,n,. 80. s.-.n,.-
the h..t 10 n. r.o,,.,oa a, .nvn, an no,,,. -,..,.
the arch
-
For certain structural purposes the combination OF
iron or steel with concrete has in various instances
been successfully resorted TO by builders, but not
until quite recently, a. at San Francisco. have those
materials been used in such relations rs q basis for
pavements. According to this method. q very thin,
slight sheet OF steel Is slit perpendicularly in short
lengths. say three inches, these Sits running in q
straight line clear down the sheet, each new one be.
ginning about half an inoh from the point where
tho preceding one ended. and the lines be-
leaving the sheet Of steel cut into long stripa
OF half an inch width. but connected together evory
three inches or 80; the sheet 10 now grssped by the
same machine on two opposite sides and pulled apart
or expanded, 90 that all the openings appear in dia.
mond shape, tho sheet really looking like O wtre graf.
ing. and ready for use. On the earth of the street,
graded into shape and padded over with sand, 10
placed the sheet Of expanded steel. and over tho
steel is then laid q layer Of concrete, this latter being