Improvements in Jacquard Looms.
Year: 1891

page_text: Date of Application, 23rd June, 1891
Complete Specification Left, 23rd Mar., 1892-Accepted, 23rd Apr., 1892
PROVISIONAL SPECIFICATION.
Improvements in Jacquard Looms.
I, ROBERT BRITTON of Wanlass Terrace, Durham in the County of Durham,.
Power-loom Tuner, do hereby declare the nature of this invention to be as
follows:-
This invention is designed to produce novel effects in weaving which are not.
obtainable in the present Jacquard loom and by application of my apparatus to .a
Brussels carpet loom to transpose or change one for the other, any of the four top
frames in a few minutes without any cutting out or retying of the worsted or any
waste of the same.
The invention consists essentially in forming jacquard needles of more than one
piece in the axial line and in placing in the lines of these needles connecting or
switching straight or bent portions so that a movement given to the ends of any
given lines of needles will actuate the ends of the same or other lines of needles to
which the bent portions are directed, or in other words arranging a switch apparatus
by which the action of any one needle in the vertical line can be switched to that
of any other.
My transforming or switching apparatus consists of a case having two side plates
each perforated for receiving the ends of bent flat wires or bars passing from plate
to plate and through these perforations. The case which is reversible is placed in
front of the present horizontal needle support or face plate so that the bent wires
can be carried with a to and fro motion and guided so that their ends will come in.
contact with the present horizontal needle points in use on the one side and the
other ends of the said bent wires or bars will come in contact with a third set of
needles which are carried and supported by an extra case or face plate hereafter
called the "extra face plate." The outer or rounded ends of these wires are
operated on by the cards as at present and these wires are preferably in line with
the horizontal needle points before mentioned. To ensure the wires in my trans-.
forming or switching case correctly pressing against the point of the present needles
the ends are preferably bent so as to form a flat surface so that when an unpunched
part of the card presses against the needles in the extra case the back of the said
needles acts or presses against one end of the wires or bars in my transforming or
switching case. The other ends of these latter wires acting or pressing against the
needles which are at present in use in the ordinary jacquards.
It will be obvious that with sets of four horizontal needle points and four corre-
sponding needles operated on by the cards as at present by varying the bend in my
transforming or switching needles any one of the needle points can be brought to
act upon any one of the needles in the jacquard and thus a large number of
variations in the position of the colours can be effected without cutting out or
retying of the worsted and without waste in the same.
Dated this 22nd der of Tune 1891
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Jacquard Looms.
1, ROBERT BRITTON of Wanlass Terrace, Durham, in the County of Durham,
Power-loom Tuner, 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 is designed to produce novel effects in weaving which are not
obtainable in the present Jacquard loom, and, by application of my apparatus to a
Brussels carpet loom, to transpose, or change one for the other, any of the four top
frames in a few minutes without any cutting out or retying of the worsted or any
waste of the same.
The invention consists essentially in forming jacquard needles of more than one
piece in the axial line, and in placing, in the lines of these needles, connecting or
switching straight or bent portions, so that a movement given to the ends of any
given lines of needles will actuate the ends of the same or other lines of needles to
which the bent portions are directed, or, in other words, arranging a switch
apparatus by which the action of any one needle in the vertical line can be switched
to that of any other.
My transforming or switching apparatus consists of a case having two side plates,
ench perforated for receiving the ends of bent flat wires or bars passing from plate
to plate, and, through these perforations, the case which is reversible is placed in
front of the present horizontal needle support or face plate, so that the bent wires
can be carried with a to and fro motion and guided so that their ends will come in
contact with the present horizontal needle point in use on the one side and the other
ends of the said bent wires or bars will come in contact with a third set of needles
which are carried and supported by an extra case or face plate. The outer or
rounded ends of these wires are operated on by the cards as at present, and these
wires are preferably in line with the horizontal needle points before mentioned. To
ensure the wires in my transforming or switching case correctly pressing against
the points of the present needles, the ends are preferably bent so as to form a flat
surface so that, when an unpunched part of the card presses against the needles in
the extra case, the back of the said needles acts or presses against one end of the
wires or bars in my transforming or switching case.
The other ends of these latter
wires, act or press against the needles which are at present in use in the ordinary
jacquards.
It will be obvious that, with sets of four horizontal needle points and four
corresponding needles operated on by the cards as at present by varying the bend
in my transforming or switching needles, any one of the needle points can be
brought to act upon any one of the needles in the jacquard, and thus a large
number of variations in the position of the colours can be effected without cutting
out or retying of the worsted, and without waste in the same.
The invention will be understood from the following description, reference being
had to the accompanying drawings, in which :-
Figure 1 is a sectional view of part of an ordinary five frame Brussel jacquard,
with my invention applied thereto;
Figure 2 a detail view of the upright rails;
Figure 3 a side view showing part of the framing with bracket attached for
holding outer face plate in position;
Figure 4 a plan of the preceding figure with the top half of the jacquard; and
Figure 5 a side view of another part of the framing with the studs for supporting
the case.
Similar letters indicate like parts in all the figures.

page_text: Keferring to Figure
A, is the card cylinder and cards moved in to press against the needle points B³
B is the outer face plate which is the same as the ordinary face plate now in use,,
but has a perforated plate B attached to the back, to guide and support the
needles B. These needles are bent to form a half rounded surface at the ends
where they come in contact with the bent flat wires A³ in the reversing case A', so
that, when it is necessary to reverse or change the case A, the bent flat wires in
the said case will not catch or prevent their being lifted out easily. A' is one of
the reversing cases with two perforated plates A2, one on either side, to guide and
support the bent flat wires A³ C the ordinary face plate now in use for guiding
and supporting the present horizontal needles C D the card cylinder slide, which
I lengthen to make up the difference between the face plates C and B; and F2
part of the bracket attached to the upright framing for supporting the plate B.
C³ shows the position of the studs for holding and supporting the reversing case A',
these studs being supported by cross rails C, which are connected by the screws D'
at the bottom of the plates C and B.
Part of the two upright rails E, the present needle plate C, the reversing case A',
the outer plate B, the studs C³, and the cross rails C for supporting the case A
are shown in Figure 2. E' is one of the springs for bringing the plate E2 into
position after the case A has been reversed or changed.
A side view of part of the framing E with the bracket F2 attached, for holding
and supporting the outer face plate B in position, is shown in Figure 3. When it
is necessary to reverse or change the case A' (Figure 1), the snecks E (Figure 3)
are let down from their position, and the card cylinder slides back until the
snecks E push against the back needle plate E, and the screws F reach the end of
the slots . After the case A (Figure 1) has been reversed or changed, the
snecks are lifted back to the position of the dotted lines F. F shows the bolts for
holding the bracket to the framing E, and F' the screws for holding the outer
frame plate B to the bracket. In order that the case A', with the wires A³,
(Figure 1) may be lifted out of their position and reversed or changed, the
back plate is pressed outward by the snecks E, and so draws the whole of the
needles in the ordinary jacquard away from the points of the bent flat wires in
case A.¹
Figure 4 is a plan view of Figure 3, with the top half of the jacquard and the
needle plates C and B, and the reversing case A, removed, to show the position of
the wires and needles in each plate, and also in the reversing case. To prevent the
reversing case from moving out of its position when the loom is weaving, I attach
projecting pieces H to the face of the present needle plate C, and also to the back
of the outer needle plate B, which said projecting pieces press against the plates A²
and so keep the reversing case in position.
A side view of part of the framing E, with the studs C³ for supporting the
case A attached to the front of the present needle plate C, is shown in Figure 5.
It will be observed that the reversing case A' will be moved horizontally in taking
it from its position (instead of vertically as in the aforesaid figures) to be reversed
or changed, and to allow of its being taken off the studs C³, the outer needle
plate B has a to and fro motion, so that, when it is necessary to reverse or change
the case A, the card cylinder is drawn away from the needles, and the needle.
plate B takes the position shown in dotted lines, or moves sufficiently to allow the
case A to be drawn off the studs C³, and so reversed or changed. After the case
for producing the effect required has been selected and placed on the studs, the
needle plate B is then allowed to go back to its normal position being actuated by
spring H. His the lever for carrying and supporting the needle plate B by
means of screws D2; H3 shows the bracket attached to the bottom part of the
framing E by the bolt D³ for holding the stud E³, which carries and supports the
lever H. D shows the attachment of the studs for holding the spring H', one of
which is fastened to the framing E, the other to the carrying lever H2.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The use, in combination with a Brussels carpet loom or the like, of the
apparatus substantially as described, whereby the frames or cases A¹ can be readily
removed and replaced by others and so effect a number of variations in the position
of the colours without the cutting out or retying of the worsted or any waste of the
same.
2. The general combined arrangement and construction of parts substantially as
described and shown on the accompanying drawings.
Dated this 22nd day of March 1892
WM. P. THOMPSON & Co.,
Of Liverpool, Manchester; Nottingham, and London, Patent Agents.