Improvements in or relating to Jacquard and Pile Forming Mechanism of Looms.
Year: 1893

page_text: Date of Application, 19th Dec., 1893
Complete Specification Left, 12th Sept., 1894-Accepted, 13th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in or relating to Jacquard and Pile Forming
Mechanism of Looms.
We, GIULIO MARCHETTI and HENRY NORMAN MELLOR, both of Dean
Clough Mills, Halifax, in the County of York, Carpet Manufacturers, do hereby
declare the nature of this invention to be as follows:-
This invention relates to improvements on former Letters Patent No. 11763 of
1884, the improvements having mainly for object to diminish the space between
the front and back portions of the double Jacquard mechanism whereby we are
enable to arrange the harness bands more vertical than hitherto.
For this purpose we dispense with the back rails and the push plates described
in the Specification of the said former Patent, and in place of the grates for the
inner ends of the selecting needles we now employ what we term a double grate
in which the inner ends of the needles slide one over the other.
In employing our improved loom, for weaving tufted pile fabrics we connect
our double Jacquard mechanism to yarn-carriers, the required lift of the said yarn-
carriers being effected by wires having varying lengths of slots operating levers
for raising and lowering the yarn-carriers, but we pivot our levers towards the
outer extremities of the front and back of the double Jacquard machine and the
wires connecting the yarn-carriers with the levers are attached towards the inner
ends of the levers. By this arrangement we are enabled to bring the wires
connecting the yarn carriers with the levers in relatively close proximity and
nearly in a vertical line and are able to raise the yarn carriers the required distance
with less traverse of the lifting grid. The upper ends of the wires are provided
with hooks so as to allow of their being raised by grids and are guided by means
of a perforated grate, eyes or projections on the said wires sustaining them when
in their lowermost or normal position.
1 000
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.
COMPLETE SPECIFICATION.
Improvements in or relating to Jacquard and Pile Forming
Mechanism of Looms.
We, GIULIO MARCHETTI and HENRY NORMAN MELLOR, both of Dean
Clough Mills, Halifax, in the County of York, Carpet Manufacturers, 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 on former Letters Patent No. 11763 of
1884, the improvements having mainly for object to diminish the space between
the front and back portions of the double Jacquard mechanism whereby we are
enabled to arrange the harness bands more vertical than hitherto.
For this purpose we dispense with the back rails and the push-plates described
in the Specification of the said former Patent, and in place of the grates for the
ioner ends of the selecting needles we now employ what we term a double grate
in which the inner ends of the needles slide one over the other.

page_text: In employing our improved loom for weaving tufted pile fabrics we connect
our double Jacquard mechanism to yarn-carriers, the required lift of the said yarn-
carriers being effected by wires having varying lengths of slots operating levers
for, raising and lowering the yarn-carriers, but we pivot our levers towards their
outer extremities to the front and back of the double Jacquard machine and the
wires connecting the yarn-carriers with the levers are attached towards the inner
ends of the levers. By this arrangement we are enabled to bring the wires
connecting the yarn-carriers with the levers in relatively close proximity and
nearly in a vertical line and are able to raise the yarn-carriers the required distance
with a minimum traverse of the lifting grids. The upper ends of the wires are
provided with books as usual so as to allow of their being raised by the grids and
are guided by means of a perforated grate, eyes or projections on the said wires
sustaining them when in their lowermost or normal position.
To enable our invention to be fully understood we will describe how it can be
carried into practice by reference to the accompanying drawings, in which:-
Figure 1 is a sectional elevation shewing our improvements in double Jacquard
machines to allow of the harness bands being arranged more vertically than
hitherto ; and,
Figure 2 is a sectional plan of the same:
Figure 3 is a vertical section drawn to an enlarged scale of a part of Figures 1
and 2:
Figure 4 is a horizontal section of the same on the line 44, Figure 3:
Figure 5 is a side elevation of part of a loom having double Jacquard mechanism
for forming tufted pile fabrics, with our improvements applied thereto :
Figure 6 is an elevation drawn to an enlarged scale of one of the levers for
raising and lowering the yarn-carriers shewing also the slotted wires used for lifting
such lever:
Figure 7 is a section on the line 7-7, Figure 6.
a, a are the selecting needles, a', a' the eyes thereof through which pass the
harness bands or the lifting wires as the case may be; a³, a' are the face plates
supporting and guiding the outer ends of the said needles, and b, b the cylinders
arranged in connection with the said needles and serving to carry the cards.
c is what we term the double grate which we now employ for guiding and
supporting the inner ends of the needles a, a, the said ends being placed in
openings c¹, and sliding one upon another as clearly shewn in Figures 3 and 4.
The inner ends of the needles are formed with elongated eyes e, e through which
are passed vertical wires d, d which form part of our double grate c and serve as
guides for the said ends. f,fare eyes with which we provide the needles a, a to
which are fixed springs f¹, f1 for securing the return of the selecting needles to
their position after having been operated upon by the cards.
By this arrangement we are enabled to dispense with the back rails and push-
plates described in the said former Specification, whereby the space between the
front and back portions of the double Jacquard mechanism is diminished so that
the harness bands (not shewn in the drawing) assume a more vertical position than
hitherto.
We will now describe our improvements when employing our improved loom with
double Jacquard mechanism for weaving tufted pile fabrics.
9, 9 are the wires having slots g', 9' (Figures 6 and 7) of varying length and
passing through the eyes a', a of the needles a, a; the upper ends of the
wires g, 9 having the hooks h, h pass between the lifting grids, and the lower
ends of the wires pass through the perforated guiding grate j. k, k are the eyes
or projections on the wires 9, 9 for sustaining them in their lowermost position on
the grate j.
The foregoing parts are practically similar to those now usually employed for
connecting yarn-carriers to ordinary Jacquard mechanism and to which we make
no claim but are here illustrated to shew how we arrange them in combination
with our double Jacquard mechanism, that is to say, we pivot the levers 1, 1 for

page_text: raising and lowing the yarn-carriers at their outer extremities, to the front
and back of the machine, as shewn in Figure 5, and we attach the connecting
wires m, m to the inner ends P, P of the said levers, whereby we are enabled to
bring the said wires m, m in relatively close proximity and nearly in a vertical
line, and are able to raise the yarn-carriers with a minimum traverse of the lifting
grids i, i.
In Figure 5 of the drawings the left hand lifting lever (shewn also in Figure 6)
is represented in its highest position, the wires g, y being shewn for the sake of
simplicity in their lowermost or normal position.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. In looms for weaving carpets and other fabrics having a double arrangement
of Jacquard mechanism as described, the use of a "double grate," in which the
inner ends of the selecting needles slide one over the other in combination with
springs for securing the return of the selecting needles to their position after
having been operated upon by the cards substantially as, and for the purpose,
described.
2. The "double grate," for looms having a double arrangement of Jacquard
mechanism, constructed and arranged as hereinbefore described and illustrated in
Figures 1 to 5 of the accompanying drawings.
3. In looms having a double arrangement of Jacquard mechanism for weaving
tufted pile fabrics, pivotting the levers for raising and lowering the yarn-carriers
towards their outer ends to the front and back of the double Jacquard machine,
and attaching the wires connecting the yarn-carriers with the levers toward the
inner ends of the levers for the purpose and substantially in the manner herein-
before described.
4. The improvements in looms for weaving tufted pile fabrics hereinbefore
described and illustrated in Figure 5 of the accompanying drawings.
Dated the 12th day of September 1894.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.