Improvements in Sign Letters or Symbols.
Year: 1893

page_text: Date of Application, 13th Mar., 1893
Complete Specification Left, 12th Dec., 1893-Accepted, 13th Jan., 1894
Improvements in Sign Letters or Symbols.
I, CHARLES WILLIAM SISLEY of 55 St. Marys Butts, Reading, in the County
of Berks, Decorator, do hereby declare the nature of this invention to be as
follows:
This invention relates to sign letters or symbols and is as follows:-
Each letter or symbol is formed of glass of the desired shape and style and this
may be done by moulding or casting the glass in any suitable mould or in any other
suitable manner.
The front or obverse of such glass letter or symbol is advantageously of a rounded
form but may be flat or of other suitable form as desired.
The back or reverse of the sign letter or symbol is formed either prismatic fluted
corrugated undulating (or a combination thereof) or of other suitable formation
and advantageously hollow or concave so as to produce brilliant effects through the
front of the said sign letter or symbol.
This prismatic etc. reverse or back of the letter etc. is silvered or gilt or other-
wise treated so as to give same a mirror or looking-glass effect the same silver or
gilt being protected by a coating of any suitable material.
The glass itself may be clear and colourless or it may be coloured or tinted (or
may have a coloured or tinted part introduced therein) so that the most brilliant
coloured effects will be produced.
Instead of silvering or gilding the back of the glass as hereinbefore set forth any
other suitable coating or material may be mounted on the said back of the letter etc.
to produce brilliant effects in conjunction with the hereinbefore described formation
of the back of said letter.
These signs letters or symbols may be arranged mounted and displayed in any
suitable manner on the outside of buildings or otherwise in which position climatic
influences will not affect them.
The said letters or symbols can be secured to the face of glass, painted wood-
work, stone or brick work, or almost any surface where desired with a cement or
suitable cementitious material on the back thereof or 1 may form holes through
the glass body of each letter etc. and thereby fix same to its support the back being
filled with a cementitious material or may mount metal eyelets or other fastenings
in the body of the letter etc.

page_text: Improvements in Sign Letters or Symbols.
I, CHARLES WILLIAM SISLEY of 55 St. Marys Butts, Reading, in the County
of Berks, Decorator, 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:―
This invention relates to sign letters or symbols and is as follows:-
Each letter or symbol is formed of glass of the desired shape and style and this
may be done by moulding or casting the glass in any suitable mould or in any other
suitable manner.
"
The front or obverse of such glass letter or symbol is advantageously of a rounded
form but may be flat or of other suitable form as desired.
The back or reverse of the sign letter or symbol is formed either prismatic fluted
corrugated undulating (or a combination thereof) or of other suitable formation and
advantageously hollow or concave so as to produce brilliant effects through the
front of the said sign letter or symbol.
This prismatic etc. reverse or back of the letter etc. is silvered or gilt or other-
wise treated so as to give same a mirror or looking-glass effect the said silver or
gilt being protected by a coating of any suitable material.
The glass itself may be clear and colourless or it may be coloured or tinted (or
may have a coloured or tinted part introduced therein) so that the most brilliant
coloured effects will be produced.
Instead of silvering or gilding the hack of the glass as hereinbefore set forth any
other suitable coating or material may be mounted on the said back of the letter etc.
to produce brilliant effects in conjunction with the herein before described formation
of the back of said letter.
These signs letters or symbols may be arranged mounted and displayed in any
suitable manner on the outside of buildings or otherwise in which position climatic
influences will not affect them.
The said letters or symbols can be secured to the face of glass, painted wood-
work, stone or brick work, or almost any surface where desired with a cement or
suitable cementitious material on the back thereof or I may form holes through the
glass body of each letter c. and thereby fix same to its support the back being
filled with a cementitious material or may mount metal eyelets or other fastenings
in the body of the letter etc.
I will now proceed to further describe this invention with reference to the
drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a view of the back or reverse side of a sign letter W constructed
according to my present invention.
Fig. 2 is a sectional edge view on line 1-1 looking in the direction of the
arrow Fig. 1.
a is the front of the letter.
bb are the separate pyramidal surfaces or small prisms.
"
In this sheet of drawings is illustrated a letter formed entirely of glass with a
prismatic back that is the " reverse is formed entirely in a series of pyramidal
surfaces or small prisms b in a plane see Figs. 1 and 2-or the back may be formed
concave with the prisms b therein.
Figs. 3 to 5 illustrate another form of construction :-
Fi 2 shows the bank of the Indian W

page_text: Fig. 5 is an edge view on line 2-2 looking in the direction of the arrow x Fig. 3
showing the letter applied to a plate or surface y.
In this case-the reverse or back c of the letter is made concave-the sides of
the concavity being formed by straight surfaces at suitable angles to one another
to produce the prismatic effect.
In Fig. 5 this letter W (Figs. 3 and 4) is shown applied to a plate or supporting
surface to which same is attached by means of cement or suitable cementitious
material d.
The back of the letter thus formed as in Figs. 1 and 2 or Figs. 3 and 4 may be
silvered or coated or otherwise treated or left plain as desired.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:-
1. A sign letter or symbol formed of glass with prismatic or the like formation
on the back thereof substantially in the manner and for the purposes hereinbefore
set forth.
2. Forming sign letters or symbols either concave or otherwise on the back
thereof by moulding or casting same with prisms or prismatic formations on the
back and if desired silvered coloured coated or otherwise treated on the back
substantially in the manner and for the purposes herein before set forth.
Dated this 12th day of December 1893
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.