Improvements in the Production of Corrugated Sheet Glass, and in Apparatus Employed therein.
Year: 1894

page_text: Date of Application, 20th Aug., 1894
Complete Specification Left, 20th May, 1895-Accepted, 22nd June, 1895
PROVISIONAL SPECIFICATION.
Improvements in the Production of Corrugated Sheet Glass, and in
Apparatus Employed therein.
I WILLIAM LEE PILKINGTON, of St. Helens in the County of Lancaster,
Glass Manufacturer, do hereby declare the nature of this invention to be as
follows:
The objects are to produce corrugated sheet glass of equal strength throughout at
low cost and in an expeditious and simple manner.
For the above purpose I take a sheet of glass of suitable thickness and size and
at a temperature sufficiently high to permit the said glass to be worked into shape
by successive formation of corrugations.
In carrying my invention into practice, the glass is acted on by apparatus
substantially as follows:-
(a) The heated glass sheet is laid on a corrugated table and is worked into the
corrugations by means of a roller having a forth and back rolling motion and also a
step by step end wise motion or the table may have the step by step motion.
(b) The table has a to and fro motion imparted to it in the longitudinal direction
of the corrugations, whilst the corrugated roller rotates on its axis-either the
table or roller or both have a step by step transverse motion imparted to them.
(c) The sheet of glass is carried to and fro between corrugated rolls, and the rolls
or glass carriers have a step by step transverse motion imparted to them.
(d) A heated cylinder of glass is opened and corrugated progressively,
substantially as above set forth.
1004
Improvements in the Production of Corrugated Sheet Glass, and in
Apparatus Employed therein.
1 WILLIAM LEE PILKINGTON of St. Helens in the County of Lancaster
Glass Manufacturer, 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 objects are to produce corrugated sheet glass of equal strength throughout
at low cost and in an expeditious and simple manner.
For the above purpose I take a sheet of glass of suitable thickness and size and
at a temperature sufficiently high to permit the said glass to be worked into shape
by a succession of formations of corrugations.
In carrying my invention into practice the glass is acted on by apparatus
substantially as follows:-
(a) The heated glass sheet is laid on a corrugated table and is worked into the
corrugations by means of a roller having a forth and back rolling motion and also
a step by step end wise motion or the table may have the step by step motion.

page_text: (b) The table has a to and fro motion imparted to it in the longitudinal direction
of the corrugations, whilst the corrugated roller rotates on its axis, either the table
or roller or both have a step by step transverse motion imparted to them.
(c) A heated cylinder of glass is opened and corrugated progressively
substantially as above set forth.
c is a
Fig. 1 is a vertical trausverse section, and Fig. 2 a longitudinal elevation of
apparatus constructed under modifications (a) and (b). a is a corrugated table
of any suitable material. b is a sheet of heated glass laid thereon.
corrugated roller provided with an operating handle. The said roller is placed on
the glass as shown, and moved forth and back, so as to press the glass into the
corrugations; the said roller is then moved endwise as regards itself, or sideways
as regards the table into the position shown by the dotted lines and a further portion
of the glass is pressed into another series of corrugations. The operation is
continued until the whole of the sheet is corrugated. It will be observed that the
width of the sheet of glass is about equal to the width of the surface of the
corrugations so that at the commencement of the operation, part of the glass sheet
projects beyond the side of the table which may and preferably is continued with a
flat surface so as to support the said projecting portion.
Instead of moving the roller forth and back, the said roller may be carried in
vertically moving bearings, and the latter may be caused to move longitudinally on
rails or slides.
Fig. 3 is a vertical transverse section and Fig. 4 a longitudinal elevation of
apparatus also illustrative of modifications (a) and (b) of my invention.
Here a
corrugated block or polisson e is used instead of a roller.
Fig. 5 is a vertical transverse section of apparatus under modification (c) of my
invention. Here a heated cylinder of glass b is laid on the table and opened in the
usual way, a roller or block being used to make the corrugations as previously set
forth, the first corrugations being made at or near the centre of the table and
produced successively on each side thereof.
Chains and pulleys or other suitable lifting apparatus may be used with heavy
rollers or blocks and the tables may be carried on slides and moved sideways if
desired instead of moving the rollers or blocks end wise.
The corrugated glass is annealed in any usual or suitable way.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, declare that what I
claim is :-
First. Producing corrugated sheets of glass by the successive formation of
corrugations.
Second. The combination of a corrugated table with a corrugated roller or block
substantially as set forth.
Third. Producing corrugated sheets of glass by opening a cylinder of glass on a
corrugated table and forming corrugations thereon substantially as set forth.
Fourth. The process and apparatus for the production of corrugated sheets of
glass substantially as set forth.
Dated the 18th day of May 1805
J. JOHNSON,
4, Clayton Square, Liverpool, Agent.
J. JOHNSON,
4, Clayton Square, Liverpool, Agent.