Improvements in Sign Letters or Symbols.
Year: 1891

page_text: Date of Application, 8th Aug., 1891
Complete Specification Left, 8th June, 1892 Accepted, 9th July, 1892
PROVISIONAL SPECIFICATION.
Improvements in Sign Letters or Symbols.
I LUDWIG SCHLENTHEIM of the firm of Diespeher & Co. Mosaic Artists of
60 Holborn Viaduct in the City of London do hereby declare the nature of this
invention to be as follows:-
This invention relates to improvements in sign letters or symbols and my present
invention consists in improvements in sign letters or symbols constructed or formed
of mosaic work set in a frame or the like construction--that is, the front of the letter
is formed of small pieces of glass or other suitable material (after the manner of
tessera) mounted in or on cement or otherwise suitably secured into or onto a
suitable frame case or carrier thus forming very striking or and effective sign letters
or symbols.
My present improvements consist: -
In making the metal or other suitable frame case holder or carrier in which the
mosaic work is mounted (as above described) with recesses holes slots or openings
therein which openings etcetera may or may not be of dovetail or undercut form so
that the cement or other plastic material will enter such openings etceteru and may
or may not overlap on the back of the frame etcetera and when set hard will thus
firmly hold the mosaic work in the said frame etcetera.
The letter or symbol is suspended or exhibited by eyelets or fastenings provided
for that purpose or in any suitable or convenient manner.
Dated this 8th day of August 1891.
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Patentee.
COMPLETE SPECIFICATION.
Improvements in Sign Letters or Symbols.
I, LUDWIG SCHLENTHEIM of Leigh Villas, Cliff Town, Southend-on-Sea in
the County of Essex, Mosaic Artist, 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 improvements in sign letters, or symbols and my present
invention consists in improvements in letters or symbols of the character for which
I have received Letters Patent dated 28th April, 1891, No. 7320.
My present improvements consist in making the metal or other suitable frame or
case in which the mosaic work is mounted (as described in the Specification of the
Patent before referred to) with holes slots or openings therein which openings may
or may not be of dovetail or undercut form so that the cement or other plastic
material will enter such openings and may or may not overlap or protrude on the
back of the frame and when set hard will thus firmly hold the mosaic work in the
said frame. Thus in the event of vibration or from expansion of the metal frame
or other cause such plastic material cannot fall out.
The letter or symbol is exhibited by being mounted or suspended by eyelets or
fastenings provided for that purpose or in any suitable or convenient manner.
Any suitable contrivance or device for suspending the sign letter or symbol may
be inserted into the plastic material in the course of manufacture.
And in order that my present invention may be fully understood and readily

page_text: carried into practice I will proceed to further describe same with reference to the
sheet of drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure is a back view of the empty frame for constructing the letter A
according to the first part of my present invention.
Figure 2 is a cross section on line y y Figure 1.
Figure 3 is a cross section on the line Figure 1-but showing the mosaic
work and cement or other plastic material in position in the frame a.
C
The openings & Figures 1 and 2 may be dovetail as shown or not as desired.
When made dovetail the material may be cleaned off flush with the plane of
the back of the letter or not as desired-or with other shaped openings the
material b comes through and overlaps at on the back of the frame a and there
sets hard and so prevents the mosaic work from dropping out should it be liable
otherwise to do so.
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 :-
A sign. letter or symbol constructed of mosaic work mounted in a frame such as a
in which holes or openings or slots such as d'of dovetail or other form are provided
substantially in the manner and for the purposes hereinbefore set forth and
illustrated in the drawings hereunto annexed.
Dated this 8th day of June 1899
TONGUE & BIRKBECK,
34, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.