St. Paul daily globe. [volume] (Saint Paul, Minn.) 1884-1896, 1891-11-29
FOR MAKING GLASS.
3ogeP S. PeaSe Has at Last
Secured His Important
Letters Patent.
First Correct Description Of
low He Will Produce the
Crystal.
Rand's Amended Liquor Or
dinanee Before the City
Council Yesterday.
Appointment Of Three Con-
Yention Committees--DiS-
trict Court News.

The manufacture of plate glass IN Min
neapolis by the improved process, of
which he is the inventor. and which is
expected to cheaper the production of
plate glass as web as to make better
quality of glass in larger quantities.
His rights are as secure as the patent
laws of the United States can make
them. On the oath day of Novem-
Der letters patent were issued
to him and to Courtlandt Babcock
and Ambrose B. Everts, his partners,
covering the manufacture of several
kinds of glass. There are five patents
In all. The first covers Method and
apparatus for the manufacture of plate
glass;' the second, Manufacture of
glass plates;" the third, Manufacture
of glass plates, cylinders, etc." the
fourth, Manufacture of glass cylin-
ders, pipes, etc., the fifth, Manu-
facture of glass bottles, etc.
The first invention, one covering the
"method and apparatus for the manu-
facture of plate glass" is thus described
by Mr.. Pease:
My invention relates to the manu-
facture of plate glass, and it consists
primarily in pouring the metal directly
upon the holding table or bed from pots
within the furnace or melting oven, so
as to avoid the necessity for first draw
ing off the metal from tank or of re-
moving the pots from the oven aud sub
1ecting them to change of tempera-
tUre."
1his problem has been treated by
other inventors, but not with the same
success that has attended the work of
Mr.. PeaSe. Some inventors have pro-
posed the use of tap for drawing off
the molten glass from the tank, supply
Ing material to the tank in proportion
to the amount OF metal drawn off. That
plan has never worked well, because the
fire clay Will fuse with the molten glass
OF be eaten away by it and the tap become
too large. Others again have proposed
TO tip the entire tank and letthe molten
glass run over the edges. But both of
these plans have contemplated the de-
livery of the molten glass to portable
pots. whence it would be carried TO the
m0lding table. Mir. PeaSe has avoided
the danger of both these planS-the en-
largement of the tap by the first and the
expense necessary in the cOnstruc-
ton of a tipping tank. He melts
the materials in small pots that are set
In melting oven. Each pot is con-
structed with a rounded side that it will
tip very easily and discharge its con-
tents directly upon the mOlding board.
This board is drawn by machinery I'M
der the pots to receive their contents
and then drawn away to the annealing
oven. There are so many pots in one
furnace that they can be emptiad and
filled right along without putting out the
fires. The Improvement is patent.
There is much time saved, the process
Is cheaper, and the metal goes directly
from the melting pot to the moulding
table without being cooled by changes
Plates Of as many cOlorS as there are
pots in the furnace may be made at the
same time.
Mr.. Pease's second patent, for the
manufacture of glass plates" is de-
signed to render the manufacture of
glass plates easy and rapid. The ap-
paratuS is designed to work in cOnnec-
ton with the invention described above.
The molten glass is delivered to a CEN
trail receptacle that is kept at the same
temperature as the melting oven.
Through hatreceptacle slides plnnger
Rollers are gagged along the sides of the
plunger so as to allow a thin film of
glass 10 be drawn out of the receptacle,
ciinging TO the sides of the piunger.
That film. passing between the plunger
and the rollers, is rolled down to the re-
quired thickness. When the sheet, or
film, has been drawn out to the proper
length, gates are closed around
the plunger automatically and the
further escape of glass is cut off.
That separates the sheet from
the body of the glass in the receptacle
Then the plunger is started on its re-
turn trip. The same sort of rollers are
arranged Oh the other side of the molten
glass receptacle and two more sheets
are drawn ont. This renders produc-
ton very rapid. The plunger works
vertically. Two sheets, or films. are
drawn out on the down stroke and two
more on the up stroke. The machine is
also provided with apparatus for the
cooling of the sheets and for the proper
heating of the pluDger.
Of the third patent relates to the man.
ufacture of glass plates, cylinders. etc.
or 1t Mr.. Pease says: The principal
novelty in the present invention is that
of forming sheets, hollow cylinders or
other bodies by dropping into a mass
OF molten glass or metal the lower edge
Of bait, adyiSedly of glass, and causing
the molten glass to adhere to
the edge of the bait and 10
be drawn upward with the lat
ter, the thickness of the edge
Of the bait, the consistency of the metal
and the rate of the upward movement
determining the thickness of the sheet,
cylinder or body produced. This thick
uniformity maintained by the aid of
cooling devices adapted TO act upon the
glass just above the level of the molten
mass"
That explains the modus operandi of
the invention about as we'll as it can be
done without the use of cuts. 1t is the
application of an old principle on
large scale. The glass cap is allowed
to become fused with the molten glass,
and then the plunger is elevated, a
cylinder the size of the cap. or bait,
being drawn out. The plunger is cooled
by water, and the air around it is thus
rendered cool enough to cool the inside
of the cylinder being drawn and form
film.
The fourth invention is a good deal
like the enc just described. 1t operates
on the same principle, but is a modifica-
tiOn of the other. 1t is an improved
blower for the blowing of glass tubes or
cylinders of any required thickness.
The bait, plunger, etc., are the same as
In the former. When the plunger
moves up with its load of glass cljnging
to it air is forced in around the piuhger
and inside the cylinder, pushing the
walls OF the cylinder out to the required
size.
Mr.. Pease has a new way of making
glass bottles. His system looks like a
great improvement over the old way.
de employs the same system of a