Improvements in the Production of Corrugated or like Roughened Surface Sheet Glass.
Year: 1892

page_text: Date of Application, 23rd Aug., 1892
Complete Specification Left, 23rd May, 1893-Accepted, 24th June, 1893
PROVISIONAL SPECIFICATION.
Improvements in the Production of Corrugated or like Roughened
Surface Sheet Glass.
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 object is to produce at low cost corrugated or like roughened surface sheet
glass.
For the above purpose I gather the molten metal in the usual way and blow
it with the aid of a mould having suitably formed walls so as to form a corrugated,
fluted, or like roughened surface cylinder. The said cylinder is then split
longitudinally and laid on a corrugated, fluted, or roughened table until it is
sufficiently set.
Sheet glass produced as above set forth is specially suitable for use with
corrugated iron.
Dated the 22nd day of August 1892.
Per pro J. T. KING,
J. Johnson,
Agent.
COMPLETE SPECIFICATION.
Improvements in the Production of Corrugated or like Roughened
Surface Sheet Glass.
I 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 object is to produce at low cost corrugated or like roughened surface sheet-
glass.
For the above purpose I gather the molten metal in the usual way and blow it
with the aid of a mould having suitably formed walls, so as to form a corrugated,
fluted, or like roughened surface cylinder. The said cylinder is then split
longitudinally and laid on a corrugated, fluted, or roughened table, until it is
sufficiently set.
Sheet glass as above set forth is specially suitable for use with corrugated iron.
In order that the method of carrying my invention into effect may be readily
understood, I have appended a sheet of drawings illustrating one modification of
apparatus which may be used for the purpose, but I would have it understood that
many modifications of apparatus may be used, and will readily suggest themselves
to those skilled in the art.
at a.
Fig. 1 is a vertical section, and Fig. 2 a horizontal section of a mould having a
corrugated inner surface on which the required thickness of glass is blown as shown
The mould is in two parts hinged at b, b', each part is formed with a taper
projection c, c', and the parts are held together whilst the glass is being blown, by
a ring d or in any suitable way such as by levers. The dotted lines show the
mould opened for the removal of the corrugated glass which has the ends cut off
as shown by the dotted lines e in Fig. 3 so as to form a corrugated cylinder and
such cylinder is slit from end to end as shown by the dotted line f. The slit
cylinder is then opened on a corrugated table g Figure 4, where it is allowed to
set, after which it is removed and annealed in any usual manner.

page_text: It will be obvious that the inner surface of the mould may be of various forms.
Figure 5 shows a mould for forming corrugated glass made of staves h, the
corrugations being formed between the staves.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is
First. Producing glass with corrugated or like roughened surfaces by moulding,
splitting and laying, substantially as set forth.
Second. Producing glass with corrugated or like roughened surfaces by the means
substantially as herein set forth.
Per pro J. T. KING,
J. Johnson,
Agent.