The Bolivar bulletin. [volume] (Bolivar, Hardeman County, Tenn.) 1865-1888, 1885-10-16
The EIGsa Ace


| An important discovery has re-
Gently been made in the manufact.
IRE of glass, which bids fair to rev
olutionise that at as completely rs
the character Of the iron trade has
! been changed in its methods by the
introduction of processes fer maxi ~
steel cheop.y on i large scale. It s.
in effect that any desired degeee o.
hardness, within rather side range,
may be communicated 10 glass, and
that by very simple means. 1t is
nothing more tlln the equable dis
triDution Of heat through the maas
ard then ri equa BILE cooling. The
discovery is credited 10 Ersleric SIC
mems, and full account Of The pro
| cess appears in the cunout number
Of Science.
The difficulty of heating and cool.
ing glass ~ an equal rote through
out Is the great stumbling bloc that
has s'ood IN the way Of success,
WjthoUs this the material qas Iiahl"
to crack or explode, familiar Illus
tfs,tion Of vl,ich Is furnished ~ thc
breaking 0. y sumbler when hot
water IS porred intoit, the danger %
fracture increasing with the thick
ness Of the glass. The application
Of raqiant heat oyercomes the first
ha'f Of tie difficulty. and tae s7.oud
is obyiaiel By sur oauding the edges
with material that prevents the
heat from leaving them more rai III
ly than tilat from other Po~fous,
Bg placing tae glass between plates
eF suitablY-pseparel metal the sof.~
sned -abstapcc can be cnlbossed
with any wished for design, and al
ter leaving the mold it is four or
more times a. lard as OIdina. J glass,
being III fact 50 ''firm" IN lis Sub
st nee that the diamond fais even TO
s-atch il. Hence II mist be made
10 ex>cuy he sizs and shape want
Ell, but after haviag been 50 made it
IS at ieasl roe times as Strong as
Ordinary glass ot tie sat,'e -hIctaess.
and b ppears to bs even less liable a.
give way on ACCOUNT Of flaws th4n
1s cast Steel. Castings have airoad
byeu made OF dnar-piates, grind
sto, esS Pu'iv5 $, raiiroad-s:eepers, etc !,
and II is be!icve,I that lis ass can be
indefinitely extended 10 a.any Of tire
uses ot wood .nd metal in the orts.
and especially il ,he building Trades
Nothing Is said cf the cost Of the
new glass. which j.. a most important
point in eletet mining the extent 10
-<hichit will &c EN- ployed far the pnr-
,,obcs xbogenoted. But at the first
blush it would appear TO be capable
Il being Produced much more cheap-
/ Y than is equivalent n iron or steel
! 1t consists of about Y per cent. OF
/ patn2h, 10 per ccnt. oi sick (sand),
smaller quantities o. lir4a ard alum
/ MA, aud traces o. other material.
! .AlI OF the articles ran,ed. gzrrpt The
! q arr literally ''as cueap - dir .
.saI pct1s,. j. ma very oo:slr; zhiie
The Qusntt,v Of iu',, required - prnb-
/ abiy less han that needed lo rge.4cg
the oras Of iran &, the nfet;iic torn,
HENCE, 1t Is not .mrosz,ie lha'
mauy Of those now living vii! SEQ
| ,bs tiulc when lsaopie wili reside IL
glass houses, sna not bv more afraiti
OF thro~Ing s.nnesthan /! they isl-
an sd structures ntlte oi oriiI arr
( bri, k and mortar. Il nce:is ~ .r..;,'
sire. ch Of tne imagination t. .ooL
forward in fancy u 2 ue0 era diz"et-
IL resulting from this Disco ar.
Man hs-- successfully uasacsi th.oagh
ths stsne age, tie bronze period,
tie IRON axe, tRe golden AZ, uore
~ eulv lhe a-e ot stoei aHa il h;,
been uropo>ea - a..uie lii.s he a@e
Il pa2er. AexJ - order n,ay CONS
t..e age Of ga s--od thra:. -[Chica
~ Tribune.
"Pa, 81 d Browne LITTLE Tommy
..iF vou lied would you ai;lI lie
lawy,4g i guess go, acsw le.
Brown. ''For how 10 ke