Improvements in the Manufacture of Enamelled Sign and other Plates.
Year: 1890

page_text: Date of Application, 10th Sept., 1890
Complete Specification Left, 21st May, 1891-4ccepted, 27th June, 1891
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Enamelled Sign and
other Plates.
I BENJAMIN BAUGH of Sharmans Cross, Solihull, in the County of Warwick
Gentleman, do hereby declare the nature of this invention to be as follows:-
:-
This invention relates to improvements in the manufacture of enamelled surfaces,
such as sign boards, advertising plates, ornamental plates, or other similar purposes,
and consists as follows:-
In the present method of manufacture, when the enamel powder, which forms
the ground surface, has been applied, the plate is placed in the fusing furnace.
After fusion has taken place, and it has sufficiently cooled, the lettering or other
stencilling powder is applied, when it is again placed in the furnace for the fusion
of this latter application, and so, as many as there are coats of enamel applied, so
there are insertions into the furnace.
Now the object of this my invention, is to lessen the number of these furnace
operations; also to provide an improved mixture and preparation of parts con-
stituting the coating to be applied to such surfaces, also to effecting a saving in
material of such coatings.
In carrying out this my invention I proceed somewhat as follows :-
I provide what is known as the base, as is usual, and also the flux or enamel,
and mix with them a quantity of potters clay, say about 5 per cent. more or less,
and a sufficient quantity of water to give the whole when mixed, about a creamy
consistancy.
These parts are placed in an ordinary burr mill, and thoroughly mixed or ground.
This product is then poured evenly over the surface to be coated, and by reason
of its fluid character, it may be so laid thereon, in an even and thin film. This in
a little time dries and sets more or less hard, so that a further coat by stencilling
or otherwise may be laid thereupon, the first coat being sufficiently set hard to
permit of it. The plate may now be removed to the fusing furnace, when the
enamel &c. melts and solidifies upon the surface of the said plate.
Thus in one furnace operation, is done the work that now occupies two of such
furnace operations.
I find potters clay to answer very well, but do not confine myself to its use
alone, as, a suitable mixture may be made with the base and the enamel, of gum
arabic, glue or other similar substance, having the property of adhesiveness and of
drying, for the purposes herein before described.
If desired the drying process of the first coating, may be accelerated by being
placed in a warm room, or upon a stove, or its equivalent, which hastening process
is quite distinct from the fusing furnace operation.
Dated this 9th day of September 1890.
CHARLES T. POWELL,
Applicant's Agent.
COMPLETE SPECIFICATION.
Improvements in the Manufacture of Enamelled Sign and
other Plates.
I BENJAMIN BAUGH, of Sharmans Cross, Solihull, in the County of Warwick
Gentleman 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 the manufacture of enamelled surfaces

page_text: for such as sign boards, advertising plates, ornamental plates, or other similar
purposes, and consists as follows :-
In the present method of manufacture, when the enamel powder which forms the
ground surface, has been applied, the plate is placed in the fusing furmee. After
fusion has taken place, and it has sufficiently cooled, the lettering or other stencilling
powder is applied, when it is again placed in the furnace for the fusion of this
latter application, and so, for every cont or deposit of enamel applied, it is inserted
into the fusing furnace.
Now the object of this my invention is, to lessen the number of these furnace
operations.
In carrying out this my invention I proceed somewhat as follows:
1 provide in the usual manner what is known as the base, and also the flux or
enamel, and mix with them a quantity of potters clay, say about 5 cent. more
per
or less, and a sufficient quantity of water to give the whole when mixed, about a
creamy consistency.
These parts are placed in an ordinary burr mill, and thoroughly mixed or
ground. This product is then poured evenly over the surface to be coated, and
by reason of its fluid character, it may be laid thereon in an even and thin film.
This in a little time dries and sets more or less hard, so that a further coat hy
stencilling or by transfer, or otherwise may be rid thereupon, the first coat being
sufficiently set fanl to permit of it.
The plate may now be removed to the fusing furnace, when the enamel &c.
melts and solidifies upon the surface of the sail plate. Thus in one furnace
operation, is done the work that now occupies two of such furnace operations.
I find potters clay to answer very well, but do not confine myself to its use
alone, as, a suitable mixture may be made with the base and the enamel, of gum
arabic, glue or other similar substance, having the property of mulhesiveness and
of drying, for the purposes hereinafter described.
If desired the drying process of the coatings may be accelerated by being placed
in a warm room, or upon a stove, or its equivalent, which hastening process is quite
distinct from the fusing furnace operation.
Having now particularly described and ascertained the unture of my inven
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. In the manufacture of enamelled surfaces, the method or process of applying
the ground & the lettering or other ornamentation coatings of base or enamel,
prior to the fusing operation, that is, that such two coatings shall require one firing
only, substantially as horeinbefore described.
Dated this 90th day of May 1801
CHARLES T. POWELL,
12, Cherry Street, Birmingham, Applicant's Agent.