An Improved Means for Forming Raised Drawings and Writings for Illuminating Ornamental and Ticket Writing Work, and other Purposes.
Year: 1888

page_text: Date of Application, 22nd Sept., 1888,
Complete Specification Left, 18th June, 1889-Accepted, 20th July, 1839
PROVISIONAL SPECIFICATION.
An Improved Means for Forming Raised Drawings and Writings for
Illuminating Ornamental and Ticket Writing Work, and other
Purposes.
ALBERTA MARY FRANCES THATCHER of The Wigwam Montpelier Square London, W.
Artist, do hereby declare the nature of this invention to be as follows:-
-
My Invention consists of a small apparatus for forming raised letters and relief
work of any design on Paper, Card, Wood, Porcelain, Terra Cotta or any suitable
substance, and of all the materials necessary for the same.
The apparatus consists of an Atmospheric Pencil or Syringe, which is in two
parts.
Part I is a hollow ball or bulb of convenient size, made from Gutta Percha, India-
Rubber or other suitable pliable substance, and having one aperture, into which is
fitted, a brass screw nozzle.
Part II is a fine tube or pipe of convenient length, which tapers at one extremity to
a very fine aperture, and the other end of which screws on to the brass nozzle in the
pliable bulb.
This tube can be made either of Gutta Percha or other impermeable substance, in
which case it admits of being easily turned in any direction, and possesses a tiny metal
pipe at its end, or it can be made entirely of metal. The aperture at the point of the
tube is regulated in size, as is also the bulb, by the style & breadth of the work, it is
desired to accomplish.
In order to make use of the Atmospheric Pencil, it is necessary to prepare a smooth
adhesive paste, which may be made from various suitable ingredients, such for.
instance as finely ground chalk or whitening, marble dust, pumice stone, the same
being mixed with liquid gums, glues or adhesive varnishes.
This paste is then introduced into the pliable bulb by means of a funnel attached
temporally to the screw over the nozzle, the funnel then removed, and the tube
1
screwed into position, when the apparatus is ready for use.
To operate the instrument it is necessary merely to compress the bulb, when the
contents will force their way out through the aperture in the tube, and can be
distributed at will over the object to be decorated.
The raised work can either be left to dry and be subsequently colored to taste, or
whilst still damp can be covered with metallic powder, which adheres and dries with
the work itself; very novel and beautiful effects being thus obtainable.
I desire to protect both this Process and also the Implements and Materials used in
the Process, in so far as they relate to this entirely novel mode of application.
Dated this 21st day of September 1888.
ATDAD TA MADY DANOWN THAT D
TATTHIA
TYTA TELCOTTY
203KTHAT T
111
COMPLETE SPECIFICATION.
An Improved Means for Forming Raised Drawings and Writings for
Illuminating Ornamental and Ticket Writing Work, and other
Purposes.
I, ALBERTA MARY FRANCES THATCHER, of The Wigwam, Montpelier Square,
London W., 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 has for its object an improved means for forming Raised letters,
Floral or other Designs, Figures or Drawings, in either high or low relief, on paper

page_text: cardboard, wood, china, terra cotta, glass, silk, satin, velvet, and all other suitable
materials, and consists, firstly, of an apparatus, which I call an "air pencil," for con-
veying the paste or mixture used in forming the relief work, to the object it is intended
to decorate; and, secondly, of the ingredients or materials hereinafter described for
forming the relief-work paste or mixture to be used with the apparatus.
And in order that the invention may be better understood I will describe the same
with reference to the accompanying drawings.
In Figure 1, A represents a hollow ball or bulb of convenient size and shape, and
made preferably of gutta percha, india-rubber, or similar flexible substance. It is
perfectly. air-tight with the exception of an opening at one end into which is fitted a
hollow metal mouthpiece or nozzle B having a screw thread on the exterior thereof.
The hollow bulb A is the reservoir of the relief-work paste, which is introduced within
it by means of natural suction through a small funnel of ordinary make.
In Figure 2, C represents the adjustable tapering tube through which the paste or
material contained in the bulb is conveyed to its destination, at the point D. This tube C
has a screw thread on the interior of the larger end thereof and is screwed on to the
mouthpiece or nozzle B when the bulb is full, and the apparatus is then ready for use
as shewn in Figure 3. The tube C may be either a pipe-stemmed metal tube, or it
may be formed of gutta percha or other impermeable substance.
:
The paste or raising material is easily expressed from the bulb by merely com-
pressing it with the fingers of the left hand whilst the right hand is employed in
guiding the direction of the tube.
The materials used for composing the relief mixture or paste consist preferably of
Gypsum, powdered whiting, or pulverized soapstone, reduced to a smooth paste by the
addition of an adhesive demulcent, such as soluble Gum Tragacanth or Gum Acacia
or Arabica, to one part of which mixture three parts of soluble Dextrine are added,
all of which conduce to the smoothness and permanent hardness of the relief work
which, when perfectly dry, becomes completely identified with the surface to which it
is applied. When formed, and partially dry, the relief work may be painted over
with oil or enamel body colours with which a powerful drier has been mixed; or dusted
with metallic iridescent bronze powders, a great variety of effects being attainable by
individual taste and skill.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I would have it under-
stood that I do not limit myself to the precise details described and shewn as the
same may be varied without departing from the nature of my invention, but what
1 claim is,
1.
The apparatus which I call an "air pencil" constructed substantially in the manner
described and shown, together with the relief work paste or mixture to be used there-
with, the whole constituting the improved means hereinbefore described for forming
raised drawings and writings for illuminating, ornamental, and ticket writing work,
and other purposes.
DL: 171 1
T
1000