The sun. [volume] (New York [N.Y.]) 1833-1916, 1893-02-26
VOTES Nv SCIENCE AND 1xDUsrn1.

Gus objects by the application AZ a coating OF
enamel and OF metal. or OF two layers OF
enamel Of different shades. To obtain the de-
sired result. only those articles are treated the
rellefs OF which are as much as possible on
the same plan. the work being thus rendered
less difficult and less costly. In carrying out
this plan the ontire surface Of the piece 10
enamelled with The required shade. and the
casting is then passed to the file wheel
which removes tho enamel from the re-
lief portions. and afterward to the
burnisher. which polishes the reliefs;
the first part OF the MANIPULATION finished.
tho article is taken to n nickel. copper. or
other IN etallic bath. the metallic deposit adher-
In this way a cnsting. Is obtained with The in
dentntions enRmeled and the rcliefs copper
lie. or even simply polished. the result being 4
very, satisfactory, initiation OF wainscotina.
Another emhcllishnont may DO procured by
dicated above. requesting il through tho fur:
mace. and then apIlyine = second coating OF
this desrriptinn' that the indcnteJ p%ortions
parts only one. the surface OF the casting would
present. from its diversity OF tones, q very at-
trnctiNe appearance.
The new method Of recording wind phs-
nomena. which has now for some time been In
uso at the Odessa observatory. has accom-.
rlished very satisfactory and useful results.
BY means OF this simple apparatus the direc-
ton and velocity OF the winds arc alike marked
on q cylinder by one symbol The record con-
on the paper covering the cylinder.
their position showing the direction Of
the wind. and the number Of them
ina * one on no q l;s a4ni.no @. d Espe ,or fsS nd1sep .S.
value q th,e readings being determine 81 an
tuatei by, clockwork. md the Publications arc
made with great. readiness and accuracy By
battery cell. the duration Of this contact do.
pending on the velocity OF the wtnd,e light
duration than a strong one.
An improved loom. lately constructed. has
received much attention from manufacturers.
presenting. as 1t does. various new and
special features OF such q character as qualify
1t for the production OF perfect cloth. at the
same time being easily handled by the wesv.
err. While the speed Ia very high. tho loom oc.
cupies no more space in the mill than the com.
mon style OF plain looms. and yet has room for
operating the largest, number Of harnesses
witch" motion: this is a point particularly
n inr}nrsrs' "a e. tbs the 6sp present IT, ti nGs h by manu-
fancy patterns is constantly on F" the sGiDDccs ea a"a
a an the :, ,o3m In question does not limit the
sses e 81 a trnsS Tsnf fes p Thile w pessss:' and r aro
ranRements for producing line broad silks are
INCLUDED. Technically described. the loom ex-
hihits u forty-two-inch twenty harness dolby.
and the goods have "A tape sewage.
Still another device for ventilatine or disIn.
fecting apartments has been placed before the
English public. the arrangement being. in
home respects. decidedly novel. There is tit
ted in the upper portion Of the apparatus o fan
or bellows actuated by a spring or other suit
able motive power for rapidly revolving the
fan. the effect being to drive a current Of air
briskly upon the surface OF the liquid stored at
the base. This liquid may consist Of any disin-
fectant or water OF any kind which may be
considered necessary in the form OF vanor.
and then passes through a tube into the
Of. disinfectant is, SO placed in the iianid COM
dIlsinisst1 mt after ta:, i. hss been pnf,iled and
Ing the sponge or other medium for carrying
ofthe liquid container: case Tor the LIQUID
BY q tube, which passes to the sariase Of the
liquid. When, the fan isin operation the air is
tainer: this disturbs the liquid BY ' CAUSING eSn =
hollow place and waves to be made on the sur.
1 nSisc d t 81 p] llataitl1; md 81 a ths al" and Ps .; Z sd de-:
stances which It contains. and may 10 scented
S>A s"S
Pneumatic tubes. such. for example. as are
now 80 largely employed in bicycle construc-
ton. are now filed by means Of multiplied
q machine having been contrived for
the purpose. A series Of rubber bulbs. which
mt inside OF the tire. is so arranged that the
outlet OF the first is on the under side OF the
and connected with the first bulb is a
valve which allows the air to be sucked in, but
not to, escape; the air is transmitted to the
second bulb, and from that to the third. and SO
on. until 1t finally empties into tho tire. filling
It up with air until 1t is OF great solidity. II is
impossible, for the tire to hurst. as there is an
at a pressure Of from one to forty pounds
the tire may become punctured.
the air pressure being increased every tina
the wheel revolves.
Among the moro recent Industrial applica-
tions OF Portland cement is it's substitution for
rubber and asbestos preparations in the pack
Ing OF steam Joints. the fact appearing, from
practical trials. especially in Ger.
many. that such packing is quite as efficient
as those which have hitherto been relied upon.
while it's cost is very much below the latter.
In practice. the cement is made into a paste
with water and. srread In a layer from one
nth to one-hali inch thick over the surface Of
the mrtnl, ma the plate or cover to be fixed is
screwed down very siowITy' ei hftnr
ne layer has been compressed to about ONE
eighth o. ~ an an lnc ~ in thickness. the screwinF Is
Tor four hours: the screws are then turned
and the. edges plastered again with
The Joint IL completed in about eight
hours after the making OF the cement.
For producing the beautiful two-colored Of
'ects now 30 much admired in figured fabrics
81 SIX and wool. In which the pattern is either
made to stand out In the wool or In the silk.
OF the most ingenious processes are re-
1uired. and the principal substantive colors
which may be used for the purpose of pro-
iucing either color or double effects have been
only by the finest and oft-repeatec
experiments. 1t is now definitely shown that
ne colors which dye both silk and wonl
Mi.n me sane intensity arc orchil. tr:-
yellow. azofayin. alknli blue. -ti-
phrnylnnine blue. Victoria blue. and Biz.
narck brown, The colors which have MOI,
unity ior sllk are ordinary magenta. napl,.
.hhline pink. ruby. rosaline. Paris violet. shirt.
ani,n" blue. soluble blue. methyli;.s
, ue. iodin" green, malaciiite green. and niCro.
,oft,hose which haycm more for woe.
mention II made of eosin. ervtiirosin rocceIjin'
(ylldine scarlet. orange, fast yellow. chryvoip