IMPROVEMENTS IN GLASS TABLETS
Year: 1884

page_text: I SAMUEL POLLARD of 1 All Saints Street in the Town and County of the Town
of Nottingham Decorator do hereby declare the nature of the said Invention for
IMPROVEMENTS IN GLASS TABLETS to be as follows:-
Heretofore glass tablets, labels, facias, signs, and ornamental pannels for
decorative purposes have been made by either painting the lettering or ornament
in black or other colour on the back of a sheet or plate of glass and covering a
portion of the remaining space by embossing it where required by floric acid and
finishing with a covering of gold or silver leaf, or else by embossing the lettering
and ornament and gilding or silvering the embossing and finishing the remainder
of the back of the sheet or plate with a suitable coloured paint, but my improve-
ments consist in etching the letters or ornament on the face of the sheet or plate of
glass where required by a mixture of floric acid and carbonate of ammonia the
proportions of which vary according to the strength of the floric acid employed by
which means I produce lettering or ornament on the face of the sheet or plate of
glass having a semi-white dead appearance but not opaque and then after the back
of the sheet or plate of glass has been gilt or silvered, the edges of each letter or the
edges of each leaf, stalk or member of the ornament etched on the front of the sheet
or plate is reflected by the gilding or silvering at the back to all appearance on to
the front surface the position of such reflection varying with the position of the eye
of the spectator thus producing a most beautiful and more novel effect than bas
heretofore been attained besides which the lettering or ornainent being unaffected
by sun or rain does not peel off.

page_text: I SAMUEL POLLARD, óf 1 All Saints Street, in the Town and County of the
Town of Nottingham, Decorator, do hereby declare the nature of my Invention for
"IMPROVEMENTS IN GLASS TABLETS," and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement :-
Heretofore glass tablets, labels, facias, signs, and ornamental panels for
decorative purposes, Have been made by either painting the lettering or ornament
in black or other colour on the back of a sheet or plate of glass, and covering a
portion of the remaining space by embossing it where required by fluoric acid, and
finishing with a covering of gold or silver leaf, or else by embossing the lettering
and ornament, and gilding or silvering the embossing, and finishing the remainder
of the back of the sheet, or plate, with a suitable coloured paint.
But my improvements consist in etching the letters or ornament on the face of
the sheet or plate of glass, where required by a mixture of four parts (by weight) of
fluoric acid, three parts of carbonate of ammonia, and two parts of water, these
proportions will vary according to the strength of the fluoric acid employed, by
which means I produce lettering or ornament on the face of the sheet or plate of
glass, which has a semi-wbite dead appearance, but not opaque, and then after the
back of the sheet or plate, has been gilt or silvered, the edges of each letter, or the
edges of each leaf, stalk, or member of the ornament etched on the front of
the sheet or plate, is reflected by the gilding or silvering at the back, to all
appearance onto the front surface, but behind the etched portion, the position of
such reflection varying with the position of the eye of the spectator. The drawing
represents an approximate appearance of the words "Pollard's Patent," etched on
the front of a plate silvered at the back, shewn in outline by black continuous
lines, and their reflection on the silvered back (when viewed from below and to the
right of the plate) shown by black lines where the reflection is clear of the letters
on the front, and by dotted lines where the reflection is behind the letters on the
front. When viewed from the left of the plate, and below, the reflection would
appear as shewn by the single letter P. When viewed from above, the reflection
would appear above. At the same time, the letters or ornament which are at the
greatest distance from the observer appear in perspective to be reflected further from
the etched portion. Thus producing a most beautiful and more novel effect, than
has heretofore been attained, besides which the lettering or ornament remains
unaffected by sun or rain, and does not peel off.
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, "The production of ornamental tablets, labels, facias, signs, and panels
for decorative purposes, substantially as described, and illustrated in the Drawings
annexed.
Dated this Second day of May 1884.