The sun. [volume] (New York [N.Y.]) 1833-1916, 1893-09-24

An improved method OF preparing pure
| metallic tungsten Is described by DIR. Kreig OF
| Magdoburg In this case. tho finely ground
tungsten mineral Is made into porous mass
| with tlno carbon and tar or pitch this mass
being placed In tho voltaic arc OF the
JnbochkoiT system. aud chlorine introduced
| through tho hollow candles Tho latter can
| be mndo to furnish tho chlorine by adding
chloride OF lime and silica to the material
chloride 9f tungsten is produced together Also
with chloride Of other metals II. these
choric acid oxide Of tungsten is thrown down.
ana the other chlortes arc dissolved. The
ST xG by dGontGSn and w.shG
reduced IN the vo'taic arc In an atmosphere Of
neutral gas. aGIa
Tho bending OF iron piping and bars Of any
section. without RnkinE or flatteninG them. 10
now claimed to be accomplished by a recently
invented machine, so constructed that the bed.
plate may be attached to any jmprovissd
bonch Ivy means of four screws. there being on
this hclplnte an upwnrdy projecting journal.
in line with which is u SLOT in which latter may
lo adjusted at any distance from tho centre OF
iho Journal stud or burr A lever with =
S,prr"tsa Hnd II whiSh prS fitted Large
that when their perimeters are brought
together 1t thoE h,s exactly at the pipe or
wh1cl- 9re tn,terchansenhlc Tor other Wheels
Hgwardiy rr%iSsiias i"urnal in nf tie bsdplsts.
wheel. but through the biturcated ani Of tile
lever: tho smaller wheel : journalled through
aSs S dis,"n "S When When tho sq sfss
wheel Is intcrrh4nged. When the lever ID
s 10 "". Sssssd
h"twccn IN" two wherla. and the lever being
hp wh to "@sp1 e. ,f ns angles Ts
was inserted. right anglo bend will he formed
Ono Of the most interesting Instances o.
railroadnE according to the ropeway system
ia now In operation ut tho plant Of tho Bimes.
tallic Mining Company at Granite. Mon. the
total length being $3.50 feet. and the differs
ence in elevation between the terminals some
l.225: tho descending loads woigh about
eleven tons and develop enough power to haul
supplies daily. as well AS run the ore crushsr
and elevator: the line can. in fact handle soma
er ten % at sss p
., 81 th u, A., KIM, hn1weyer: is said to b.
Il has ths fall Hoy ee, ns n at G5e ss C
leads out from the loading terminal at the
mine on an inclination Of thirty-one degrees.
Ing, Of two steel ropes one. and seven eIghths
forty five degrees from tho top OF a steep clitf
70 the bottom in n clear span Of 2.25O feet. :
rome passing over pmlisys on the ciifr.in this
way tho loaded chr in descending hauling up
tho empty car.
The complete isolation OF nuorine by q
French scientist is q recent chemical triumph
which has excited much interest Fluorino
as described for the popular understanding.
has smell resembling that OF hypochlorous
ncd. which is somewhat masked by tho odor
OF ozone. from its action on water vapor. It,
OF course. acts powerfully on the respiratory
organs. even when greatly diluted. and 10
causes insensibility lasting as long as u week
It is OF a yellowlsh green color. somewhat
lighter and vel over than chlorine. It COM.
great II ths sapSus
iuIn. and telluri4m take fire In it at ordinary
Win "s Of "W bpra IN It
phous carbon; ANONYMOUS boron. and especially
crystalline silicon. with the evolution Of great
heat. Many other substances burn in It oxy-
gen and nitrogen appearing to DO the only eio-
ments with which it does not unite.
Quito an important discussion took place DO.
fore the Master Mechanics Association at it's
recent Saratoga meeting on the character OF,
merits OF steel and iron tubes respectively. It
was announced. In o report on this subject,
that in tho case OF large number of steel
tubes. the results. 30 far as wear is concerned.
have been unfavorable. The following def.
steel tubes WI" Der &! ' TSs IRON aaa tubes
steel tubes on tho other side Of the centre Of
the Goile e the tubes being DIVIDED BY vertI;
the expiration OF iifteen months the fses were n
all removed. tho condition OF the tubes being
such that seventeen of the iron ones were con-,
while 81 xty-four OF tho steel tubes were con.
dcemned for the same defect. the inferorlty Of
the latter being thus largely in excess OF the
iron tubes.
Success appears to have attended the now
process inaugurated by English manufacturers
in the production of caustic soda and chlorine.
In the works constructed for this purpose ther0
is boiler which supplies steam to condemns
ing beam engine, which drives q dynamo, and
the wha IS IN Mss
solution being facilitated BY means OF an ngi-
tator From here the solution descends by
gravitation to the decomposing tanks. which
are twenty feet long. three feet wide. and nine
inches lsep. ard are made Of slatei they are
gives current at forty four volts. each tank re-
evolved at the positive eiectrode. and T. led
away, by ripe to the chlorine cham bers. the
negative eloctrode. dissolves in tho water and
which It Is pumped into the concentrating
pans where it is boiled. and upon cooling Il
tank Into the gas chamber and
q hole Is arranged in the aooT by which the
are two Of these the rSs
Ing from one to the other. -
The most extensive manufacturers of shut.
ties in Great Britain. Kirk a. Co.. are said TO-
market heir products in all continents and In
almost all parts OF tho world. None but tho
most expensive material Is utilized for this
purpose. including Persian lakewood. cornell
and pers mmon. and for some classes of shut.
tic lockwood Is employed: the fayorite sDscies.
however. being cornell and persimmon, be-
cause OF their peculiar adartation to Withstand
without warning or twisting are not subject
to variation by moisture. are tough. and wear
ong time WHsre II can ~ be- seasoned y, nstursIIy.
and after some twelve months OF this air
treatment under cover. it is gradually carried
forward TO warmer temperatures for three
months additional. the turning and finishing
taking place Mt as near the temperature OF o
shed as posslble-from seventy -
eighty degrees F-,this treatment adding