IMPROVEMENTS IN THE MANUFACTURE OF CORRUGATED AND EMBOSSED GLASS, AND IN THE APPLICATION OF THE SAME TO THE PURPOSES OF ILLUMINATION
Year: 1870

page_text: LETTERS PATENT to John Henry Johnson, of 47, Lincoln's Inn Fields,
in the County of Middlesex, Gentleman, for the Invention of
"IMPROVEMENTS IN THE MANUFACTURE OF CORRUGATED AND EMBOSSED GLASS,
AND IN THE APPLICATION OF THE SAME TO THE PURPOSES OF ILLUMINATION.”
A communication from abroad by Theodore Hyatt, of New York, in
the United States of America.
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PROVISIONAL SPECIFICATION left by the said John Henry Johnson
at the Office of the Commissioners of Patents, with his Petition,
on the 28th November 1870.
I, JOHN HENRY JOHNSON, of 47, Lincoln's Inn Fields, in the County
5 .of Middlesex, Gentleman, do hereby declare the nature of the said
Invention..for "IMPROVEMENTS IN THE MANUFACTURE OF CORRUGATED AND
EMBOSSED GLASS, AND IN THE APPLICATION OF THE SAME TO THE PURPOSES OF

page_text: ILLUMINATION," a communication to me from abroad by Theodore Hyatt,
of New York, in the United States of America, to be as follows:-
This Invention relates to a mode of manufacturing what is known as
corrugated glass, and also to the manufacture of embossed glass, and to
the application of such glass to roofs, windows, partitions, screens, and
other like uses where illumination is required.
According to the first part of this Invention it is proposed to manu-
facture corrugated glass direct from sheets or plates of glass of any
desired thickness whether produced by blowing or casting. These sheets
are to be heated to the required temperature and are then corrugated
either by simple pressure between moulds or by rolling or otherwise. In
applying the said corrugated glass to roofs it may be used either in the
form.of "shingles " or tiles overlapped in the usual manner and with the
corrugations running either crosswise or in the direction of the pitch or
slope of the roof. Nail or pin holes lined with lead or india-rubber are
provided in each glass tile in order to secure the same, the lead or india-
rubber serving to protect the glass from direct contact with the nail or
pin. When applied to windows, partitions, and screens, the corrugated
glass may be glazed with frames in the usual way.
According to the second part of this Invention it is proposed to manu-
facture what the Inventor calls "embossed glass " from sheets or plates
of glass produced either by blowing or casting the object (as in the case
of the corrugated glass) being to prevent the passage of visual rays
through the glass without obstructing the light. In manufacturing
embossed glass the sheet or plate is first brought to the proper tem-
perature and is then either pressed between embossing rolls having
the desired designs or patterns engraved or otherwise produced thereon.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent; bearing date the Twenty-eighth day of November, in the
year of our Lord One thousand eight hundred and seventy, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said John Henry Johnson, Her special license,
that I, the said John Henry Johnson, my executors, administrators, and
assigns, or such others as I, the said John Henry Johnson, my executors,
administrators, or assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend,.
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN THE MANU-
FACTURE OF CORRUGATED AND EMBOSSED GLASS, AND IN THE APPLICATION OF THE
SAME TO THE PURPOSES OF ILLUMINATION," a communication to me from
abroad by Theodore Hyatt, of New York, in the United States of
America, upon the condition (amongst others) that I, the said John
Henry Johnson, my executors or administrators, by an instrument in
writing under my hand and seal, should particularly describe and
ascertain the nature of the said Invention, and in what manner the
same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said John Henry Johnson, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement, that is to say :—
The said Invention relates to a mode of manufacturing what is known
as corrugated glass, and also to the manufacture of embossed glass, and
to the application of such corrugated glass to manufactured roofs,
windows, partitions, screens, and other like uses where illumination is
required.
According to the first part of this Invention it is proposed to manu-
facture corrugated glass direct from sheets of blown glass of any desired
thickness. These sheets after having been blown are to be, if necessary;
reheated to the required temperature, and are then to be corrugated
cither by simple pressure between moulds or by rolling or otherwise,
the manufacture being completed by placing the corrugated glass in an

page_text: annealing oven for the purpose of annealing the same.
66
"
In applying the
said corrugated blown glass to roofs it may be used either in the form of
shingles or tiles overlapped in the usual manner, and with the corru-
gations running either crosswise or in the direction of the pitch or slope of
the roof. Nail or pin holes lined with lead or india-rubber are provided
in each glass tile in order to secure the same, the lead or india-rubber
serving to protect the glass from direct contact with the nail or pin and
thus avoid fracture when driving in the pin or nail. When applied to
windows, partitions, and screens, the said corrugated glass may be glazed
into frames in the usual way.
The second part of this Invention relates to the manufacture of what
the Inventor calls embossed glass for illuminating purposes wherein it
is desirable to obstruct the visual rays without impeding to any great.
extent the amount of light passing through the glass, and consists in.
making such "embossed glass" from sheets of glass previously produced.
by blowing. In manufacturing embossed glass the sheet is by reheating
first brought to the proper temperature, and is then either pressed between.
the embossing plates or passed between embossing rolls having the.
desired designs or patterns engraved or otherwise produced thereon.
Having now described and particularly ascertained the nature of the
said Invention, and the manner in which the same is or may be used
or carried into effect, I would observe in conclusion that what I consider
to be novel and original, and therefore claim as the Invention secured to
me by the herein-before in part recited Letters Patent is,―
First. The manufacture of corrugated glass by first producing a sheet
by blowing, then corrugating the same whilst in a properly heated con-
dition by the aid of moulds or rollers, and finally annealing the same,
substantially as herein-before described.
Second. The manufacture of "embossed glass" for illuminating
purposes by first producing a sheet by blowing, then pressing the same
into moulds of any embossed design, and finally annealing the same, as
herein-before described.
Third. The application and use to and in roofs, partitions, screens, and
other purposes of illuminations of corrugated sheets of blown glass, as
herein-before described.
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page_text: Fourth. The lining the nail or pin holes in corrugated glass tiles with
lead or india-rubber for the purpose herein-before described.
Fifth. The application and use for illuminating purposes of embossed
glass made from sheets of blown glass.
In witness whereof, I, the said John Henry Johnson, have to this
my Specification set my hand and seal, this Twenty-sixth day of
May, One thousand eight hundred and seventy-one.