Improvements relating to the Jacquard of Looms.
Year: 1889

page_text: Date of Application, 18th Sept., 1889
Complete Specification Left, 18th June, 1890-Accepted, 19th July, 1890
PROVISIONAL SPECIFICATION.
Improvements relating to the Jacquard of Looms.
I, ALBERT SNOECK of Ensival, in the Kingdom of Belgium, Manufacturer, do
hereby declare the nature of my invention to be as follows:
Two kinds of arrangements for supporting Jacquard machinery of weaver's looms
have been adopted, either they are suspended from the ceiling of the room and
worked by connecting rods coming from the loom or supported by two cross-pieces
either secured to special bearers independently of the frame or to forked shaped
extensions of the two side frames of the looms.
The first mode amongst other inconveniences, produces in the working of the
Jacquard irregularities resulting from the vibration of the ceiling to which it is
attached and of the floor upon which the loom rests. The rods which connect the
two points are attached to independent supports being of invariable length, may easily
hend, when these supports become displaced or easily produce different motions of the
Jacquard according to the.rospective positions of these supports.
The placing of the Jacquard machinery upon cross pieces carried by supports
independent of the frames reduces the inconveniences above set forth without
abolishing them and it encumbers the loom-hall with posts, which hinder the
circulation.
Further placing the Jacquard machinery upon cross-pieces secured by some
extensions or other parts to the side frames gives cause for bending and vibration,
which are felt when working the loom.
Besides with the three arrangements just set forth the access to the Jacquard
machinery is performed with difficulty and not without danger.
The control is performed under adverse conditions, and consequently it is frequently
neglected to the detriment of the working.
The present invention is designed to do away with these deficiencies and relates
to a new arrangement for giving to the side frames of the Jacquard machine a
height slightly above the surface of the warp, even less to looms without Jacquard,
and joining these frames by two cross-pieces of a special shape appropriate to the
functions to be performed. This shape is the one of an elliptic arch surmounted by a
pyramid.
Two similar arches are firmly bolted to the frames of the loom in order to produce
powerful cross-pieces.
On the elliptic arches or beneath these arches are the two pivots of the levers
serving to work the Jacquard machinery.
The cards are carried by four branches which may be fixed in any desired position
on two kinds of hand-rails fastened to the top and bottom of the special frames above
described.
Thus the strain of the motion of the Jacquard is produced at points of little height
and where sustained by powerful cross-pieces.
I also reduce the lever-arm upon
which this strain acts with regard to the loom itself by having these parts carried
by supports capable of resisting the strains. Besides the Jacquard and the loom
form one construction allowing of invariable regulation:
In order to further increase the resistance of the special supports of the Jacquard
and at the same time to facilitate access to the same I arrange all around these
additional frames a strong platform made of metal fastened to such frames and to
which access is given by means of treddles secured to the frames and by aid of one of
the hand-rails which carry the card-supports.
Dated this 18th day of September 1889.
HERDERT & Co.,
Agents to Applicant.

page_text: Improvements relating to the Jacquard of Looms.
I ALBERT SNOECK of Ensival in the Kingdom of Belgium Manufacturer 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 the framework for supporting the Jacquard mechanism in
connection with a loom. "
1
Hitherto
one of two methods for supporting Jacquard machinery in connection
with looms has been generally adopted. Either such machinery is suspended from
the ceiling of the room and worked by connecting rods from the loom or it is
supported by two cross pieces either secured to special bearers independent of the
frame of the loom or to forked shaped extensions of the two side frames of the
respective loom with which it is connected. The first method amongst other
inconveniences produces irregularities in the working of the Jacquard mechanism
resulting from the vibration of the ceiling to which it is attached and of the floor
upon which the loom rests. The rods which connect the two parts which are thus
held by relatively independent supports being of invariable length are liable to bend
when these supports become displaced or to produce different motions of the Jacquard
according to the respective positions of these supports.
The placing of the Jacquard machinery upon cross pieces carried by supports
independent of the frames reduces the inconveniences above set forth without
abolishing them and it encumbers the floor of the weaving room with posts which
are obstructions to free passage.
Further placing the Jacquard machinery upon cross pieces secured on extensions
of the side frames or other parts attached thereto gives to the height of the side
frames liability to bending and vibration which is felt when the loon is in operation.
Besides with the three arrangements above set forth the access to the Jacquard
machinery can only be had with difficulty and not without danger.
Inspection being thus performed under adverse conditions is consequently frequently
neglected to the detriment of the working.
The present invention is designed to do away with these deficiencios and consists
in giving to the side frames of a Jacquard loom a greatly reduced height, even less
than in looms without Jacquard mechanism namely a height but slightly above the
surface of the warp and joining these two side frames by two cross pieces of a special
shape appropriate to the functions to be performed by them. This shape is that of
an elliptic arch the crown of which is surmounted by a pyramid.
Two similar arches are firmly bolted to the frames of the loom in order to produce
powerful crosspieces.
On the elliptic arches or beneath these arches are the two pivots of the levers
serving to work the Jacquard machinery..
The cords are carried by four branches which may be fixed in any desired position
on two bars resembling and serving as hand rails fastened to the top and bottoin of
the special cross pieces as above described.
Thus the strain of the motion of the Jacquard is produced at points of little height
and these sustained by powerful cross pieces. I also reduce the lever arm upon
which this strain acts with regard to the loom itself by having these parts carried by
supports capable of resisting the strains. Besides the Jacquard and the loom form
one construction allowing of invariable regulation.
In order to further increase the resistance of the special supports of the Jacquard
mechanism and at the same time to facilitate access to the same, I arrange all round
these additional frames a strong platform made of metal fastened to such frames
and to which access is given by means of steps secured to the frames and by aid of
one of the hand rails which carry the cord supports.
Reference being made to the accompanying drawings in which Fig. 1 is a front
elevation and Fig. 2 a side elevation of a loom provided with the improved framework

page_text: for supporting the Jacquard mechanism said drawings showing the mode of carrying
this invention into practice. A A are the side frames of the loom. B is the improved
cross piece of Jacquard frame. C, D, are the levers and rod gear for operating the
Jacquard mechanisin. E are the Jacquard guide brackets F the band rail P the
platform and I I the steps thereto.
Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I clain: is
1. In a Jacquard loom the cross frame B constructed substantially in the manner
and shape specified and supported by the side frames of the loom reduced or made to
the height herein set forth.
2. The combination with the frame B of the rails E serving as supporting bars or
frames for the brackets of the Jacquard cord guides and also as a handrail for use
in connection with steps and a platform on said frame B for the purpose set forth.
Dated this 17th day of June 1890.
HERBERT & Co.,
18, Buckingham Street, Strand, London, W.C., Agents to Applicant.