Improvements in the Manufacture of Rippled Glass and in Apparatus therefor.
Year: 1886

page_text: Date of Application, 14th Dec., 1886.
Complete Left, 12th Sept., 1887,
Complete Accepted, 14th Oct., 1887.
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Rippled Glass and in
Apparatus therefor.
We, ANTHONY DIXON BROGAN and ANDREW MURRAY MALLOCH, both of Firhill,
Glasgow, in the County of Lanark, Glass Manufacturers, do hereby declare the nature
of this invention to be as follows:-
Our invention has for object the production in an inexpensive manner of glass
sheets having upon one side a rippled or wave-like surface.
To that end we employ a glass rolling machine having a smooth table whereon the
glass is rolled by means of a roller whose surface is engraved, embossed or otherwise
suitably impressed with irregular undulations whereby in the rolling operation the
desired undulating or rippled formation is imparted to the surface of the glass acted
on by the roller while the opposite side of the glass which is in contact with the table
remains comparatively smooth. The roller so impressed may replace the ordinary
smooth roller employed in rolling glass and be operated in the usual way by handing
wheels at either end of it or it may be super-added to the ordinary glass rolling
machine in which latter case the spindle or axis of the impressing roller is preferably
so connected by links or otherwise to that of the smooth roller that the two rollers are
simultaneously passed over the glass the smooth roller being in advance and rolling
the glass into a sheet which while in a soft and plastic condition is acted on by the
impressing roller or follower the undulations or ripples being produced by the use of
a comparatively light roller.
Dated this Thirteenth day of December 1886.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow,
Agents.

page_text: Improvements in the Manufacture of Rippled Glass and in
Apparatus therefor.
We, ANTHONY DIXON BROGAN and ANDREW MURRAY MALLOCH, both of Firhill,
Glasgow in the County of Lanark, Glass Manufacturers, do hereby declare the
nature of this invention and in what manner the same is to be performed, to he
particularly described and ascertained in and by the following statement :-
Our invention has for object the production in an inexpensive manner of glass
sheets having upon one side a rippled or wave-like surface.
To that end we employ a glass rolling machine having a smooth table whereon the
glass is rolled by means of a roller whose surface is engraved embossed or otherwise
suitably impressed with irregular undulations whereby in the rolling operation the
desired undulating or rippled formation is imparted to the surface of the glass acted
on by the roller whilst the opposite side of the glass which is in contact with the table
remains comparatively smooth. The roller so impressed is super-added to the ordinary
glass rolling machine the spindle or axis of the impressing roller being preferably so
connected by links or otherwise to that of the smooth roller that the two rollers are
simultaneously passed over the glass the smooth roller being in advance and rolling
the glass into a sheet which while in a soft and plastic condition is acted on by the
impressing roller or follower the undulations or ripples being produced by the use of
a comparatively light roller. The larger and heavier roller serves to roll out and
determine the thickness of the glass sheet and the follower need only be of such weight
as to impress the pattern upon the surface of the soft and plastic glass.
In the accompanying drawings figure 1, represents in perspective a glass casting
table A, provided as above set forth with two rollers one B, of which is of the usual
smooth type and the other C, which is connected to it by links D, with the axis
parallel to the other, has formed upon it the design or pattern to be impressed on the
upper surface of the glass.
The under surface of the glass which is in contact with the table remains com-
paratively smooth whilst the upper surface which is acted on by the roller C, after
being pressed out by the roller B, has the desired pattern clearly impressed upon it.
By employing two or more pattern impressing rollers the patterns upon them may be
run into each other or intermingled when impressed on the glass sheets and patterns
produced of dappled, rippled or various forms.
Figures 2 and 3 illustrate in plan and cross section a piece of glass having a rippled
pattern produced on the surface.

page_text: Having now particularly described and ascertained the nature of our said invention,
and in what manner the same is to be performed, we declare that what we claim is:
1. The herein described method of rolling glass sheets having designs or patterns
produced upon one surface, said method consisting in rolling out molten glass upon a
casting table by means of a smooth roller and at the same operation impressing the
pattern upon the sheet so rolled by means of an impressing roller or rollers sub-
stantially as set forth.
2. In glass rolling apparatus the combination with a smooth roller adapted to roll
out molten glass, of one or more rollers or followers engraved or otherwise suitably
impressed to produce in the rolling operation rippled or similar patterns or designs
upon the surface of the rolled sheets substantially as described.
Dated this Tenth day of September 1887.
CRUIKSHANK & FAIRWEATHER,
62, St. Vincent Street, Glasgow.