Manufacture of Blown Hollow Glass with Metal Insertions.
Year: 1892

page_text: Date of Application, 21st Mar., 1892
Complete Specification Left, 19th Dec., 1892-Accepted, 21st Jan., 1893
PROVISIONAL SPECIFICATION.
[Communicated from abroad by THE AKTIEN-GESELLSCHAFT FÜR GLAS-
INDUSTRIE, vormals Friedr. Siemens, of Dresden, Germany, Manufacturers.]
Manufacture of Blown Hollow Glass with Metal Insertions.
I, OLIVER IMRAY of No. 28 Southampton Buildings, Chancery Lane in the
County of London, Chartered Patent Agent, do hereby declare the nature of this
invention to be as follows:
:-
The processes heretofore known for the manufacture of glass articles with metal
insertions by pressing or rolling is limited to those articles which could heretofore
be produced without metal insertions by the said modes of production, but do not
extend to that class of glass objects--so called blown hollow glass-which are
produced by blowing with air on the glass makers tube. The present invention
relates to the manufacture of blown hollow glass, and consists in forming a hollow
glass object by first blowing a lump of glass in a mould, then opening the object
so formed by cutting or otherwise, introducing the suitably formed metal insertion
and then blowing a second glass lump into the formed object, after which the whole
is treated further, for example, by repeated heating and blowing into the mould,
cutting, melting &c.
If the wire or other metal object introduced is of such a nature as to be able to
follow the change of form given to the glass in blowing or flashing, the application
of the present improved process will be greatly extended. It also enables glass to be
produced in sheet or disc form from blown hollow glass cylinders with wires
introduced therein.
The mode of operating for this purpose is as follows.
A cylinder is blown in the first instance and into this is introduced the open
metallic insertion arranged straight and parallel to the axis of the cylinder is
blown in.
The combined cylinder thus formed then has the caps removed and is cut open
at that point where the opening of the metal insertion is situated, after which it is
flattened out in the well known manner in a flattening oven, and it is then cut into
sheets or discs.
This process for the manufacture of table glass with metal insertion from blown
hollow cylinders enables thinner glass articles to be produced than is possible by
the pressing or rolling process. The results of the experiments heretofore made
prove that this process can without doubt be employed for the manufacture of
blown hollow glass articles on a very extended scale. In particular the use of
elastic or pliable metal insertions, with suitable articulated connections of separate
parts, such as rods or rings, or with plaited metal, will enable articles to be
produced which could either not be produced at all by pressing or rolling or only
by the application of costly and unreliable means.
Dated thin 21st der of March 1892
ABEL & IMRAY,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Manufacture of Blown Hollow Glass with Metal Insertions.
I, OLIVER IMRAY, of No. 28 Southampton Buildings, Chancery Lane, in the
County of London, Chartered Patent Agent, do hereby declare the nature of this
invention and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
The processes heretofore known for the manufacture of glass articles with metal
T
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page_text: insertions by pressing or rolling is limited to those articles which could heretofore
be produced without metal insertions by the said modes of production, but do not
extend to that class of glass objects-so called blown hollow glass-which are
produced by blowing with air on the glass maker's tube. The present invention
relates to the manufacture of blown hollow glass, and consists in forming a hollow
glass object by first blowing a lump of glass in a mould, then opening the object so
formed by cutting or otherwise, introducing the suitably formed metal insertion,
and then blowing a second glass lump into the formed object, after which the whole
is treated further, for example, by repeated heating and blowing into the mould,
cutting, melting &c.
If the wire or other metal object introduced is of such a nature as to be able to
follow the change of form given to the glass in blowing or flashing, the application
of the present improved process will be greatly extended.
It also enables glass to be produced in sheet or disc form from blown hollow
glass cylinders with wires introduced therein.
The mode of operating for this purpose is as follows:-
-
A cylinder is blown in the first instance and into this is introduced the open
metallic insertion arranged straight and parallel to the axis of the cylinder after
which the second cylinder is blown in.
The combined cylinder thus formed then has the caps removed and is cut open
at that point where the opening of the metal insertion is situated, after which it is
flattened out in the well known manner in a flattening oven, and it is then cut into
sheets or discs.
This process for the manufacture of table glass with metal insertion from blown
hollow cylinders enables thinner glass articles to be produced than is possible by
the pressing or rolling process. The results of the experiments heretofore made
prove that this process can without doubt be employed for the manufacture of
blown hollow glass articles on a very extended scale. In particular the use of
elastic or pliable metal insertions, with suitable articulated connections of separate
parts, such as rods or rings, or with plaited metal, will enable articles to be
produced which could either not be produced at all by pressing or rolling or only
by the application of costly and unreliable means.
..
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
The method of manufacturing blown hollow glass with metal insertions con-
sisting in first forming a hollow glass body by blowing in the usual manner, and
after opening the same, introducing therein the suitably formed metal insertion,
whereupon a second hollow glass body is blown into the first one, thus forming two
combined hollow glass bodies with the metal insertion between them, the whole
being then treated and finished in any suitable manner, such as by reheating and
blowing into a mould, cutting off, melting together, cutting open and flattening for
forming a solid glass body having metal embedded therein, substantially as
described.
Dated this 19th day of December 1892.
ABEL & IMRAY,
Agents for the Applicant.