AN IMPROVED CONSTRUCTION OF FILE-WHEEL FOR GRINDING FILLET CARDS, com-
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I, ERNEST DE Pass, of 68 Fleet Street in the City of London, Fellow of the
Institute of Patent Agents, do hereby declare the nature of said invention for
AN IMPROVED CONSTRUCTION OF FILE-WHEEL FOR GRINDING FILLET CARDS, com-.
municated to me from abroad by La Société Veuve A. Miroude et Compagnie, of
1, Boulevard Saint-Denis, Paris, France, to be as follows:
This invention relates to an improved construction of file-wheel for grinding
fillet cards, said file-wheel being directly constituted by the teeth or dents of tho
cards serving as an immediate support for emery, or other like biting material,
which is fixed thereto by means of any suitable agglutinant.
The file-wheel thus contrived is of extremely advantageous use, by reason of the
relative elasticity of the card teeth or dents carrying the emery, which prevents a
too rapid wear of the file wheel.
For the purpose of the Invention, fillet cards arranged in such a way that the
teeth or dents form rows sufficiently distant from each other, are employed, the
said fillet cards being formed preferably with a foundation of cloth, over which is
placed a thickness of felt or padding.
By means of a comb or other suitable tool, heated to a red heat, or else furnished
with cutting teeth, cavities or hollows are formed in the spaces between the dents
or teeth for the reception of the emery.
Over the surfaces of these cavities or bollows and the teeth or dents of the cards
the agglutinant material is applied.
Upon the agglutinant material thus applied, the emery, or other biting material,
such as sand, powdered glass, steel in powder, silicates, etc, is sprinkled. It is
then allowed to dry, and in this way the file wheel is obtained, the emery forming
a body with the agglutinant material and the teeth or dents of the cards, as well
as with the bottom padding.
The file wheel is eventually constructed by arranging the before mentioned
fillets either cylindrically or helicoidally on or around a core in strips or sections.
DU
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:

page_text: COMPLETE SPECIFICATION.
J, ERNEST DE PASS, of 68 Fleet Street, in the City of London, Fellow of the
Instituto of Patent Agents, do hereby declare the nature of said invention for
AN IMPROVED CONSTRUCTION OF FILE-WHEEL FOR GRINDING FILLET CARDS, com-
municated to me from abroad by La Société Veuve A Miroude et Compagnie, of
1 Boulevard Saint-Denis, Paris, France, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement, reference being had to the accompanying drawings, and to the letters
and figures marked thereon, that is to say:-
This Invention relates to an improved construction of file wheel for grinding
fillet cards, said file wheel being directly constituted by the teeth or dents of the
cards serving as an immediate support for the emery, or other like biting or
grinding material, which is fixed thereto by means of any suitable agglutinant.
The file wheel thus contrived is of extremely advantageous uso, by reason of the
relative elasticity of the emery bearing card teeth or dents, which prevents a too
rapid wear of the filo wheel.
I proceed with reference to the accompanying drawings to fully describe the
novel construction of file wheel with emery bearing teeth.
For the purpose of the Invention, fillet cards are employed and are arranged in
such a way that the teeth or dents form rows sufficiently distant from each other
as seen at a, a, a, fig. 1, the said fillet cards being formed preferably with a
foundation of cloth b, over which is placed a thickness of felt or a padding c.
By means of a comb, or other suitable tool, heated to a red heat, or elso
furnished with cutting teeth, cavities or hollows d, d, d, are formed in the spaces
between the dents or teeth for the subsequent reception of the emery, as shown in
Fig. 2.
Over the surfaces of these cavities or hollows and the teeth or dents of the
cards a, a, the agglutinant material is applied.
Upon the agglutinant material thus applied, the emery or other grinding or
biting material, such as sand, pounded glass, powdered steel, silicates, etc. is
sprinkled. It is then allowed to dry, and in this way the file wheel is obtained,
the emery forming a body with the agglutinant material and the teeth or dents of
the cards, as well as with the bottom padding.
The file wheel thus constructed, may be arranged cylindrically around a core f
in strips or sections, as shown in fig. 3, or wound helicoidally on the core ƒ as
shewn in fig. 4.
It is of course understood that there may be used for the manufacture of this
file-wheel, any fabric for the foundation, any padding and any materials whatever
for the teeth of the cards; also that these teeth may be of any shape and size,
bent, curved, &c.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is
The improved construction of file-wheel, for grinding fillet cards, in which the
teeth of said wheel are provided with emery or other like substance in the manner
as herein described, and as shewn in the drawings.

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