IMPROVE...) MENTS IN JACQUARD LOOMS
Year: 1868

page_text: LETTERS PATENT to Henri Adrien Bonneville, of the British and...
Foreign Patent Offices, 24, Rue du Mont Thabor, Paris, in the,
Empire of France, and 10, Sackville Street, Piccadilly, in the
County of Middlesex, Patent Agent, for the Invention of "IMPROVE...)
MENTS IN JACQUARD LOOMS."-A communication from, Pierre Legrand,.,
residing at Serain, in the Empire of France, Manufacturer.
Sealed the 5th June 1868, and dated the 16th March 1868.
COMPLETE SPECIFICATION filed by the said. Henri Adrien Bonneville
at the Office of the Commissioners of Patents, with his. Petition
and. Declaration, on the 16th March 1868, pursuant to the 9th.
Section of the Patent Law Amendment Act, 1852:
i
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRI
ADRIEN BONNEVILLE, of the British and Foreign Patent Offices, 24, Rue"
du Mont Thabor, Paris, in the Empire of France, and' 1'0, Sackville**
Street,, Piccadilly, in the County of Middlesex, Patent Agent, send"
greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS
IN JACQUART LOOMS," a communication from Pierre Legrand, a' person.

page_text: resident at Serain, in the Empire of France aforesaid, Manufacturer, and
have petitioned Her Majesty to grant unto me, my executors, adminis-
trators, and assigns, Her Royal Letters Patent for the same, and
made solemn Declaration that it is a communication.
NOW KNOW YE, that I, the said Henri Adrien Bonneville, do hereby
declare that the following Complete Specification, under my hand and
scal, fully describes and ascertains the nature of the Invention, and the
manner in which the same is to be performed, reference being had to
the accompanying Drawings; and to the letters and figures marked
thereon, that is to say :-
The improvements communicated to me relate to the manufacture of
figured stuffs at a speed equal if not superior to, that at which up to the
present day plain stuffs have been manufactured. These improvements
consist in placing on each front of the loom a mechanism with a double
movement working alternately. This mechanism is composed of grips
acting separately on a series of hooks set in motion by needles
corresponding thereto, and reaching on both fronts of the loom a cylinder
supporting the cards. These cards are divided into two series, the one
comprising all the odd numbers, the other all the even numbers working
on each front of the loom. The hooks are secured in their places by an
india-rubber or any other spring. The first. hook of each series cor-
responds with the first thread, the second hook with the second thread,
and so on.
These improvements are represented as applied to a hand loom Fig. 1
of the accompanying Drawing; Figs. 2, 3, and 4 of which show some
of the parts by themselves.
A is the cylinder supporting the cards; it is cither fixed or moveable,
and carries a greater or lesser number of sides, but the octagonal form
is preferable as giving greater stability to the cards. On this cylinder
is shipped a dented wheel B carrying a pinion C furnished with four
pivots on which act the catches of the loom in its ascending and
descending movement, imparting thus a gentle and regular movement
of rotation to the cylinder A which in succession brings on the hooks
and on the needles the cards intended to actuate' them with or without
recoil. The pinion C may be actuated by any other mechanism; it is
held by a spring which prevents it turning more than is needful at each
lifting of the warp. In order to obtain a regular and convenient lifting

page_text: of the warp for the passage of the shuttle the hooks D correspond with
an equal number of little blades E to which the healds are affixed.
According as the healds are fixed more or less to the pivot of these
little blades, the angle for the passage of the shuttle opens more or less
wide. In order to obtain an angular lifting of the warp the pivot of the
little blades is placed in the position shown in Fig. 4. This angular
lifting of the warp facilitates the uncrossing of the threads, especially in
the case of materials with long filaments.
In the application represented in the accompanying Drawing the
mechanism is placed on the loom, but for mechanical weaving it is
necessary to place it on the ground inside the loom, as shown in Fig. 5.
In that case movement is imparted to the mechanism by a pinion
shipped on the driving shaft of the loom ordinarily working the treadles
which are here done away with. For this application the little blades are
replaced by larger ones F having double branches and forming an angle
of about 45 degrees, of which one carries a rack in the teeth of which
are placed the cords so as to augment or diminish the lifting of the
warp according as the cords are placed more or less near the pivot of
these blades.
For the weaving of materials having long filaments which require an
ascending and descending movement so as perfectly to uncross the
threads of the warp the mechanism undergoes a slight modification set
forth in Fig. 6. Instead of moving on the hook the cylinder supporting
the cards acts on a needle G which carries two rings H, I, in which
pass the two hooks J, K. The hook J operates above and the hook K
below the mechanism; these two hooks are connected together by a
string passing on a roller L placed at the lower part of the mechanism.
The grip is furnished with two knives M so that according as the
needle G is or is not repulsed by the card the hook J or the hook K
is seized by one of the knives. The mechanism thus modified is
placed on the side of the loom and to the height of the warp threads.
Having thus particularly described the nature of the said improve-
ments, and the manner of carrying the same into effect, I would have it
understood that I do not confine myself to the precise details above
enumerated and illustrated in the accompanying Drawings, as these
may obviously be modified without departing from the principle of the
Invention; but what I claim is, a mechanism by means of which two

page_text: movements are obtained, one on each front of the jacquart loom,,
substantially as herein-before fully set forth and described.
In witness whereof, I, the said Henri Adrien Bonneville, have
hereunto set my hand and seal, this Fourteenth day of March,
in the year of our Lord One thousand eight hundred and
sixty-eight.
H. BONNEVILLE. (L.S.)