CERTAIN IMPROVEMENTS IN THINNING OR SHAVING TAWED, TANNED, OR DRESSED SKINS
Year: 1856

page_text: LETTERS PATENT to Charles Marie Chouillou, Manufacturer, of Paris, in
the French Empire, for the Invention of "CERTAIN IMPROVEMENTS IN
THINNING OR SHAVING TAWED, TANNED, OR DRESSED SKINS."
Sealed the 27th January 1857, and dated the 18th August 1856.
PROVISIONAL SPECIFICATION left by the said Charles Marie Chouillou
at the Office of the Commissioners of Patents, with his Petition, on
the 18th August 1856.
I, CHARLES MARIE CHOUILLOU, Manufacturer, of Paris, in the French
Empire, do hereby declare the nature of the said Invention for "CERTAIN
IMPROVEMENTS IN THINNING OR SHAVING TAWED, TANNED, OR DRESSED SKINS," to
be as follows:-
My Invention consists in the employment of a tool, made to rotate, and to
remove, by friction or by cutting, any inequalities or superfluous thickness
there may be in skins, especially in such skins as are to be formed into
gloves.
The tool'I use is a roller (by preference of a parabolic form, but it may be
cylindrical, conical, or otherwise), composed of stone, pumice stone, emery, or
of any suitable substance coated or covered with pumice stone, emery, or other
like suitable gritty material; or I place curved or straight cutting blades upon
or around the roller. The roller, however formed, is mounted in bearings so

page_text: as to be capable of rotary motion. The roller is caused to rotate by any
suitable means, and the skins are brought in contact with it by hand, being
stretched more or less, according to the thickness to be removed.
a brush to act on the skins, after the shaving tool, to remove any loose particles
remaining upon them.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Charles Marie Chouillou in the Great Seal Patent Office
on the 18th February 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
MARIE CHOUILLOU, Manufacturer, of Paris, in the French Empire, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
.Patent, bearing date the Eighteenth day of August, in the year of our Lord
One thousand eight hundred and fifty-six, in the twentieth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Charles Marie Chouillou, Her special licence that I, the said Charles
Marie Chouillou, my executors, administrators, and assigns, or such others
as I, the said Charles Marie Chouillou, my executors, administrators, and
assigns, should at any time agree with, and no others, from time to time
and at all times- thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United Kingdom
of Great Britain and Ireland, the Channel Islands, and Isle of Man, an
Invention for "CERTAIN IMPROVEMENTS IN THINNING OR SHAVING TAWED, TANNED,
OR DRESSED SKINS," upon the condition (amongst others) that I, the said
Charles Marie Chouillou, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, should par-
ticularly describe and ascertain the nature of the said Invention, and in
what manner the same was to be performed, and cause the same to be
filed in the Great Seal Patent Office within six calendar months next and
immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Charles Marie Chouillou, do hereby
declare the nature of my said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the
following statement thereof, reference being had to the Drawings hereunto
annexed, that is to say:-

page_text: My Invention consists in the employment of a tool, made to rotate, and
remove, by friction or cutting, any equalities or superfluous thickness that
there may be on skins, this rotating tool being used instead of the to and fro
action of a blade or cutting instrument worked by hand, and employed for
thinning or shaving skins.
The tool which I employ may be of a parabolic form (which I prefer), or
cylindrical or conical, or shaped like a grindstone or otherwise, being always
so mounted that rotary motion may be communicated to it; and the tool may
be made of natural or artificial stone, or of clay, pottery, pumice stone, flint,
rock-crystal, quartz, emery, grit, schist, or other suitable material; or of
metal, wood, gutta percha, leather having on the surface grit, ground glass, or
other rough and rasping or grating material, and the outer surface of the tool
may be roughened, serrated, furrowed, fluted, or corrugated; or the tool may
consist of. a. roller. or block provided with a number of parallel, straight, or
curved or spiral blades, the edges of which may be smooth or serrated. The
roller or tool, however formed, is mounted in bearings, or on a spindle, so as
to be capable of rotary motion, and being made to rotate by any suitable
means; the skins to be shaved or thinned are brought in contact with it, and
stretched more or less, according to the thickness to be removed.
The annexed Drawings illustrate the manner in which my Invention may
be carried into effect. The same letters refer to similar parts in all the
Figures.
Fig. 1 is a side view, and Fig. 2 an end view of a rotary tool. A is a tool
of parabolic form, mounted in a spindle B, revolving in bearings in the
pedestals C, C, to which spindle rotary motion is communicated from a fast
and loose pulley D; E is the skin to be shaved or thinned, stretched over the
tool in order to be subjected to its action.
Fig. 3 shews at A another form of tool, hemispherically shaped, mounted
on a pivot or spindle B, held in a bracket C, and made to rotate by a pulley
D, or otherwise.
In Fig. 4 the tool A is of the same shape as in Fig. 8, but is mounted
vertically on a horizontal spindle, instead of horizontally in a vertical spindle,
as in that Figure. B, shaft, as before; C, C, pedestals; D, driving pulley;
E, skin to be thinned or shaved.
A, Figs. 5 and 6, is a tool provided with curved blades I, I, and mounted
on a spindle B, made to rotate by gearing H.
The
The skins may be stretched over the tools in any convenient manner.
same mode may be adopted for "opening skins," and tools constructed and made
to revolve, according to the present Invention, may be employed for fleshing

page_text: skins, and also instead of the instrument hitherto employed by leather dressers
for rendering skins supple. As skins after having been dyed or damped are
very hard, they should be soaked in bran or sawdust, or very slightly damped,
before being subjected to the action of my tools.
It is to be distinctly understood that I do not limit myself to the particular
forms of tool shewn in the Drawings, nor to the modes of actuating them,
which are merely given as examples of the manner in which the Invention
may be carried into effect.
mado to
A brush may be ^ act on the skin or the tool after the shaving for re-
moving any loose particles.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim, as constituting
my said Invention, the thinning and shaving of skins by means of a tool having
rotary motion imparted to it, and acting in the manner herein-before described.
In witness whereof, I, the said Charles Marie Chouillou, have hereunto
set my hand and seal, this Twenty-sixth day of January, in the year
of our Lord One thousand eight hundred and fifty-seven.
Witness,
C. M. CHOUILLOU. (L.S.).
CH. ARMENGAUD, Ing' Conseil,
No. 23, Boulevart de Strasbourg,
à Paris.