Improvements in Apparatus for Manufacturing Corrugated, Ribbed, or other Glass having Designs or Patterns upon the Surface.
Year: 1889

page_text: Date of Application, 27th May, 1889
Complete Specification Left, 27th Feb., 1890-Accepted, 19th Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Manufacturing Corrugated, Ribbed,
or other Glass having Designs or Patterns upon the Surface.
I, ALEXANDER DRUMMOND of 35 Montrose Street, Glasgow, Lanarkshire, Glass
Merchant, do hereby declare the nature of this invention to be as follows:-
Under the present system of manufacture, when it is desired to produce corruga-
tious, ribs or other designs or patterns upon glass, the glass, in a molten state, is
poured out, either on a smooth table over which a roller having the requisite design
or pattern, engraved or cut upon its surface, is run; or upon a table having the
design or pattern engraved or cut upon its surface and over which a smooth roller
is run. The cutting or engraving of the tables and rollers make this system of
producing glass with designs or patterns very expensive.
Under my invention instead of cutting or engraving the roller or table as at
present, I use sheets of steel or other suitable metal or material which I, preferably,
by means of dies, impress, stamp or cut out, emboss or perforate with the desired
pattern or design. The ornamental sheet thus made, is, when the glass is to be
rolled on a smooth casting table, bent into the form of a cylinder or tube, the
meeting edges of the sheet being brazed or otherwise jointed together so that the
sheet forms a perfect cylinder. The part of the cylinder where the joint appears
may be cut or ornamented by hand so that it shall have the same appearance and
correspond in design with the rest of the cylinder. When it is desired to print or
roll the molten glass, on the casting table, with the design or pattern, the ornamented
cylinder is or may be slipped on an ordinary smooth plate glass roller and be secured
in position thereon by means of clamping screws or equivalent devices. The roller
with the cylinder on it is now rolled over the glass in the usual manner.
A sheet of asbestos cloth or other heat resisting material may be fitted on the
roller between the inner surface of the cylinder and the outer surface of the roller.
The asbestos serves as a packing or cushion to the ornamental cylinder.
When it is desired to roll the glass out with a smooth roller, the ornamental metal
or other sheet is or may be secured and held in position on the casting table by
means of rods bars, or their equivalent, fitted round the edge of the table. A sheet
of asbestos cloth or other heat resisting material may be laid underneath the orna-
mental sheet.
The ornamental metal or other cylinders may be made in long lengths so that they
can be cut into the lengths required to fit the rollers.
The ornamental sheets may have views of buildings, letters or other fancy or
ornamental designs formed on them.
When rolling out the glass with the design or pattern, a smooth surfaced roller
may precede the ornamental cylinder roller.
Dated this 25th day of May 1889.
*Mani
Tat
70, Wellington Street, Glasgow, Applicant agvI.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Manufacturing Corrugated, Ribbed,
or other Glass having Designs or Patterns upon the Surface.
I, ALEXANDER DRUMMOND of 35 Montrose Street, Glasgow, Lanarkshire Glass
Merchant, 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;—
Under the present system of manufacture when it is desired to produce corruga-
tions, ribs or other designs or patterns upon glass, the glass, in a molten state, is

page_text: poured out, either on a smooth table over which a roller having the requisite design
or pattern engraved or cut upon its surface is run; or upon a table having the
design or pattern engraved or cut upon its surface and over which a smooth roller
is run.
The cutting or engraving of the tables and rollers make this system of
producing glass with designs or patterns very expensive.
Under my invention instead of cutting or engraving the roller or table as at
present I use sheets of steel or other suitable metal or material which I, preferably,
by means of dies, impress, stamp or cut out, emboss or perforate with the desired
pattern or design. The ornamental sheet thus made, is, when the glass is to be rolled
on a smooth casting table, bent into the form of a cylinder or tube, the meeting edges
of the sheet being brazed or otherwise jointed together so that the sheet forms a
perfect cylinder. The part of the cylinder where the joint appears may be cut or
ornamented by hand so that it shall have the same appearance and correspond in
design with the rest of the cylinder. When it is desired to print or roll the molten
glass on the casting table with the design or pattern, the ornamental cylinder is or
may be slipped on an ordinary smooth plate glass roller and be secured in position
thereon by means of clamping screws or equivalent devices. The roller with the
cylinder on it is now rolled over the glass in the usual manner..
A sheet of asbestos cloth or other heat resisting material may be fitted on the
roller between the inner surface of the cylinder and the outer surface of the roller.
The asbestos serves as a packing or cushion to the ornamental cylinder.
When it is desired to roll the glass with a smooth roller, the ornamental metal or
other sheet is or may be secured and held in position on the casting table by means
of rods, bars or their equivalent, fitted round the edge of the table. A sheet of
asbestos cloth or other heat resisting material may be laid underneath the ornamental
sheet.
The ornamental metal or other cylinders may be made in long lengths so that they
can be cut into the lengths required to fit the rollers.
The ornamental sheets may have views of buildings, letters or other fancy or
ornamental designs formed on them.
When rolling out the glass with the design or pattern, a smooth surfaced roller may
precede the ornamental cylinder roller.
And in order that my said invention may be properly understood I have hereunto
appended an explanatory sheet of drawings, whereon
Fig. 1 shows in perspective a glass rolling table with a pattern or design impressing
roller attached to the ordinary glass roller.
Fig. 2 is a side elevation of one of my improved design impressing rollers.
Fig. 3 is a longitudinal section of a design impressing cylinder which is fitted on
the outside of a smooth roller or of a core.
Fig. 4 is a cross section of my roller.
Fig. 5 is a cross section of the design impressing cylinder.
Fig. 6 shows part of a glass rolling table with an ornamental sheet fitted to it and
upon which the glass is rolled.
•
Fig. 7 is an end view of a glass rolling table.
On the drawings-
a is the glass rolling table which may be of the ordinary construction as shown in
fig. 1. The glass is poured on the table a and is rolled out either by an ordinary
sinooth roller b having attached to it a design impressing roller c or by a large design
impressing roller alone. To obviate the necessity for cutting or engraving the design
impressing rollers I, under this invention, use a sheet of steel or other suitable metal
which is, preferably by means of dies, impressed stamped, cut out, embossed or
perforated with the design or pattern desired to be given to the glass sheets. The
sbeet d, after having the design or pattern made on it, is first bent into the form of a
cylinder as shown at figs. 2, 3, 4 and 5 and the meeting edges e, f (fig. 5) of the sheet
are then brazed or otherwise jointed together so that the sheet shall form a perfect
cylinder. The meeting edges e, f of the sheet d when joined together may be
suitably cut or ornamented by hand so as to correspond with the design on the rest of

page_text: the cylinder. The ornamental cylinder is now ready for use and, when it is desired
to print or impress the glass, it may be slipped on an ordinary smooth glass rolling
cylinder g or on a solid core, as shown at fig. 4, and be secured thereto by means of
studs h, (which may be countersunk) screws or equivalent devices. An asbestos or
other heat resisting lining i may be interposed between the cylinder d and the
roller to serve as a packing or cushion.
Instead of rolling the glass on a smooth table, the table may have an ornamental
sheet spread over its surface, as shown at fig. 6, upon which the glass is poured and
then rolled out in the usual manner with a smooth roller. The ornamental sheet
which is made with a design or pattern on it in the same way as the sheets d for the
cylinders is or may be secured and held in position on the table a by means of rods j
or bars or their equivalent, fitted round the edge of the table and preferably secured
in position by means of screws h, studs or their equivalent. An asbestos cloth or. other
heat resisting sheet may be laid between the surface of the table and the ornamental
sheet d'.
As shown at fig. 7 a number of rollers c having cylinders on them or cylinders
alone may be supported on brackets k fitted around the table a.
Instead of using a separate design roller for each pattern to be rolled on the glass,
a number of cylinders with different designs or patterns on them may be provided,
and, when it is desired to roll out glass with a different pattern, the cylinder already
on the glass roller or core would be taken off and be substituted by a cylinder having
ou it a different design.
The sheets d, d¹ may be made in long lengths and then be cut in pieces suitable for
the rollers or tables. The sheets may have any design made on them.
The ornamental sheets d, d¹ may be cut or engraved by hand although I prefer to
stamp or make the design or impressions on the sheets by suitable dies. When the
sheets are cut by hand there is still the advantage over the existing system of being
able to change the design at any time by merely changing the cylinders on the rollers
or cores; or the sheets on the tables.
Rippled, corrugated, pyramidal and other pattern glass may be rolled with my
improved rollers and tables.
The cylinders d may be fitted on the rollers or cores without a heat resisting
packing i between them.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. In the manufacture of glass, the application and use of sheets having designs or
patterns impressed, stamped, cut, embossed or perforated on them, said sheets being
either made into cylinders and fitted on a smooth roller or core, or fitted on the
surface of the glass casting table, substantially as and for the purpose set forth.
2. The combination with the roller or core g, of a lining of asbestos or other heat
resisting material i, and a cylinder d with designs or patterns on it, substantially as
herein before described and shown on the drawings annexed.
3. The combination with a glass casting table (a), of a sheet (1) having designs or
patterns on it and secured to the table by means of rods (1) or their equivalent,
substantially as described and shown on the drawings annexed.
Dated this 20th day of February 1890.
H. D. FITZPATRICK,
70, Wellington Street, Glasgow, Agent.