IMPROVEMENTS IN THE PRODUCTION OR MANUFACTURE OF DOOR AND WINDOW PLATES, SHOW PLATES, ADVERTIZING PLATES, AND OTHER LIKE PLATES AND LABELS FOR GLASS BOTTLES, AND FOR OTHER LIKE PURPOSES
Year: 1876

page_text: PROVISIONAL SPECIFICATION left by John Dryhurst and Joseph Woodward
at the Office of the Commissioners of Patents on the 12th August 1876.
JOHN DRYHURST and JOSEPH WOODWARD, both of Birmingham, in the County of
Warwick, Endorsing and Flexible Stamp Manufacturers. "IMPROVEMENTS IN THE
PRODUCTION OR MANUFACTURE OF DOOR AND WINDOW PLATES, SHOW PLATES,
ADVERTIZING PLATES, AND OTHER LIKE PLATES AND LABELS FOR GLASS BOTTLES,
AND FOR OTHER LIKE PURPOSES."
Our Invention consists of the improvements herein-after described in the
production or manufacture of door and window plates, show plates, advertizing
plates, and other like plates, whereby the manufacture of the said plates is much
economized. Plates so manufactured are very durable, readily cleaned, and have an
ornamental appearance.
Our Invention is also applicable to the production of labels on wine, spirit,
medicinal, and other glass bottles or vessels, and to other like purposes.
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We will first describe our Invention as applied to the production of a door or
window plate.
We first make in the ordinary way a flexible or india-rubber stamp, having upon
it the namo, inscription, design, or device, it is wished to produce on the door or
window plate, but in an, inverted position, and we take a piece of sheet glass of the
size of the door or window plate to be made. Having coated the flexible stamp
lightly with varnish or other adhesive material, we print upon the sheet glass with
the said coated flexible stamp, leaving an impression in varnish or adhesive
material upon the said glass. We next coat or cover the varnish or other im-
pression upon the glass plate with powdered bronze of any required colour, or with
gold or silver leaf or other metallic leaf, or with a pigment of any required colour.
Having thus obtained the required name, inscription, design, or device, upon the
glass plate, we take a second plate of glass of the same size as that having the
impression upon it, and we place it in front of the impressed face of the plate,
the two plates lying close together, the front plate enclosing and protecting the
gilded or other name, inscription, or design, on the face of the back plate. The
back face of the impressed plate is next covered with Brunswick black or other
opaque or nearly opaque colour; or a thin sheet of stained glass may be used at
the back of the impressed plate in place of covering the impressed plate with
Brunswick black.

page_text: The impressed plate of glass and the protecting or front plate of glass may if
thought desirable be secured together by cement, and the combined plates are then
ready to be framed or otherwise used.
We manufacture show plates, advertising plates, and other plates, in the manner
described with respect to a door or window plate.
In applying our Invention to the manufacture of labels for glass bottles and
other glass vessels, and glass articles requiring labelling we employ a flexible stamp
as before described, and we protect the impressed label by coating it with glass
capable of fusing at a much lower temperature than the glass of which the bottle,
vessel, or article is made.