The Wheeling daily intelligencer. [volume] (Wheeling, W. Va.) 1865-1903, 1876-07-17
That Famous I,eIlairc Glass.

London Times.
1t now about year since general
description Of NJ. de la Bastie's method
Of toughening or tempering glass, and
the special characteristics Of the material
produced, appeared in our columns. AT
that time and for some months subse'
Guently the process was carried on at NJ.
de Ia Basties works at Pont d'Ain, near
Lyons, upon small scale only. Having
thoroughly demonstrated that the pro:
cess could be carried out, practically and
commercially, with bothsuccess and prof
It, glass works were purchased in which
the production of glass articles for do.
nestle use had hitherto been carried on
upon the ordinary principles OF mapu-
facture. These works were arranged to
suit tho. new process Of tempering, and
some two months were consumed in ex.
perimcnts, which were made with the
view Of simplifying the. methods Of man
ipulation as much as possible, and Of re:
ducing the inyentionto an ordinary man
ufacturing process. This NJ. de Ia Bas.
tie has succeeded in doing, and the works
were fairly started in February last. A
careful inspection Of the works, which,
through the courtesy Of ". dc Ia Bastie,
we were recently able to make, leads us
10 the conclusion that more simple and
with ordinary care, more certain pro-
cess is not TO be found In the whole circle
OF the industrial arts.
Besides the works Of Choiyy lie Roi, NJ.
de Ia Bastie still keeps his experimental
woks at Pont d'Ain in operation. There,
however, the glass Is purchased from
makers, and reheated and tempered. AT
Pont d'Ain there are in all eleven fur.
naces, two single and two double for tenn
periug plate glass and five for other kinds
OF glass. There are also some smaller
furnaces for tempering watch glasses.
The plates Of glass nj present tempered
are OF various sizes, the largest measure
ing IS inches by l9 inches; large sizes
will, however, soon be tempered, and new
machinery is in course OF construction
for that purpose. 1t is also intended to
put up two furnaces at Pont d'Ain Tor
the manufacture oftempered glass in the
same way a. at Choisy. Besides the two
factories .of d. de Ia Bastie there are
three others in France at which his pro-
cess OF tempering has been adopted.
These are the extensive glass factories Of
Lyons, Vierzon, and Kuppervilliers near
Paris. At these ,wbrks 81. de Ia Bastie
has such orders executed Al he receives
and which he Is unable to execute, owing
TO the present comparatively limited ca:
pacity Of his own establishments. These
are the subsidiary arrangements 10 which
we alluded when referring to the necess-
ity for extending the works at Choisy.
The proprietors Of twelve other works In
France are now in communication with
N. dc Ia Bastie, with the view Of adopt
Ing the manufacture Of tempered glass
upon his principle. The tempering
process has also been introduced into
several countries besides that which gave
birth to its inventor. In Germany, for
example, there are q number Of works at
which tempered glass is being made
. 80 In America II has taken
good root. The process has been six
months at work In Brooklyn, and has
been adopted at works In Pittsburgh and
Boston, and at the Bellaire Works, and
the Wheeling Works, in Ohio, as well rs
at other works in smaller cities.