Improvements in and connected with Jacquard Looms.
Year: 1894

page_text: Date of Application, 14th July, 1894
Complete Specification Left, 11th May, 1895-Accepted, 22nd June, 1895
PROVISIONAL SPECIFICATION.
Improvements in and connected with Jacquard Looms.
We, THE CHLIDEMA CARPET COMPANY, LIMITED, of Green Street,
Kidderminster, in the County of Worcester, Carpet Manufacturers, and EDWARD
BURGHAM, of Hoo Brook, Kidderminster, aforesaid, Machinist, do hereby declare
the nature of this invention to be as follows:-
This invention has reference to those Jacquard looms which are used for weaving
bordered carpets and other bordered fabrics in which two sets of cards and two
cylinders are used one set of cards and one cylinder being arranged say at the
front of the loom and adapted to select and raise the warp threads in the proper
order to form the body pattern, and the other set of cards and cylinder being
arranged say at the back of the loom and adapted to select and raise the warp
threads in the proper order for forming the border pattern; mechanism being
provided for bringing either cylinder and its cards into action and for throwing the
other cylinder and cards out of action so that only one cylinder and its cards is in
action at one time. A Jacquard loom of this kind is described in the Specification
of Lamb's Patent No. 4892 of A.D. 1891 and in the Specification of Fawcett's
Patent No. 8261 of A.D. 1889 but from various causes the Jacquard mechanisms
described in these Specifications do not always work satisfactorily as they are not
certain in action. The object of this invention is to simplify the mechanism and
ensure perfect action of the jacquard whichever of the two cylinders and its cards
are in operation, and to so arrange the mechanism that the ordinary border
cards and body cards of a single jacquard can be used.
For the purposes of this invention we employ Jacquard needles of the usual kind
arranged horizontally and passing through needle plates at the front and at the
back of the loom the vertical cords which raise the warp threads being fixed in
the usual way to a top board and passing through holes in a trap board of the kind
described in Lamb's Patent above referred to, that is to say, the holes are arranged
in rows and each hole has two traps arranged opposite each other. The said
vertical cords pass through eyes in the needles as usual and through holes in the
bottom board. According to one part of this invention the top board and trap
board and bottom board are all made so that when reversing the jacquard from
body to border or vice versa the said three boards and the vertical cords and needles
are all moved together a little nearer to that Jacquard cylinder (say for instance
the body pattern cylinder) which is being brought into operation to weave the body
pattern the cords hanging down vertically or nearly so from the top board through
the holes in the trap board and through the eyes of the needles and also through the
bottom board. As the body Jacquard cylinder which is now in operation advances
towards the projecting ends of the needles the blank spaces of the cards push the
corresponding needles inwardly so that the knots on the vertical cords corre-
sponding with these needles are caught by the traps as the trap board rises thus
selecting and raising the warp threads in the proper order to form the body pattern.
Similarly when the jacquard is reversed to weave the border the body Jacquard
cylinder which was in operation is thrown out of operation and the top board, trap
board, needles, bottom board, and vertical cords, are all moved away from this
body cylinder towards the border cylinder which is about to operate, thus causing
the other ends of the needles to project through the other needle plate to be

page_text: pushed back by the blank spaces on the cards of the border cylinder so that the
knots on the vertical cords corresponding with these needles will be caught by
the opposite traps as the trap board rises thus selecting and raising the warp
threads in the proper order to form the border pattern. In order to cover the
traps at that side of the holes in the trap board corresponding to the cylinder which is
out of operation and thus prevent the cords catching in these traps we provide a
shield something like that described in Lamb's Specification above referred to made
with parallel bars running from side to side of the jacquard and arranged the same
distance apart as are the rows of holes in the trap board but instead of making
this shield move when the jacquard is reversed, as in Lainb's Patent, we fix this
shield to its end vertical slides aud we make the trap board move underneath it
either towards one cylinder or towards the other to cover the traps corresponding
with the cylinder which is out of operation as stated above. In combination with
the two Jacquard cylinders we employ two levelling up or back, boards as they are
called one at the front and one at the back of the loom and so arranged that when
the jacquard is reversed one of the back boards will be raised and the other back
board will be lowered into position between the ends of the needles and that
cylinder which is out of operation the said back board being made to move to and
fro with the other Jacquard cylinder which is in operation so as to level up the
ends of the needles every time the Jacquard cylinder moves back to bring a fresh
card into position. By arranging the parts as stated above the jacquard is certain
in its action whether working with the body cylinder or the border cylinder.
In ordinary five frame Brussels jacquards it is customary for each needle to be
threaded with two cords so that the fifth or bottom frame cords pass through long
eyes of the needles to be lifted every time with the trap board unless the needles
are moved endwise by the blanks on the cards so as to bring the cords of the other
frames into trap. In order to get this result and enable the ordinary body and
border cards of a single Jacquard loom to be used with the double jacquard herein
described we make the portion of the shield of the trap board which corresponds
with the two rows of holes in the trap board for the bottom frame separate from
the other part of the shield and arranged to be moved by end levers operated by the
moving trap board so that when the trap board is reversed in position as aforesaid
the movement of the trap board causes the levers to move the said small portion of
the shield with the trap board and in the same direction but rather farther so as to
cover the traps of the fifth frame cords in which the knots are not required
to catch.
vice versa.
Various arrangements of mechanism may be employed for reversing the positions
of the parts stated above when changing from body pattern to border pattern and
We may employ for instance such arrangements of mechanism as the
following which form parts of this invention. At the top of the jacquard and
adapted to turn through a certain angle in bearings carried by the side frames of
the same we employ a horizontal rocking shaft arranged immediately above the top
board and from which all the various reversing motions are obtained this shaft
being provided with cams engaging with forked brackets fixed on the top board
and the said shaft having a hand wheel and hanging cords or like arrangement at
one end by which the said shaft can be turned say through half a revolution in
either one or the other direction so that when turned as aforesaid the said cams on
the shaft acting against the forked brackets of the top board will cause the top
board to slide nearer to one cylinder or the other cylinder according to which
cylinder is being brought into operation as stated above. The said cams are so
shaped as with the forked brackets to form stops and prevent the top board being
moved too far in either direction. Fixed on the said rocking shaft and near the
ends of the same there are two wheels or drums round which pass chains which are
led over guide pulleys down to the levelling up boards which latter thus hung on
the chains and when the said shaft is turned in either one or other direction as
aforesaid one lévelling up board is raised whilst the other is lowered; thus the
necessary reversing movement of the levelling up boards and the top board is

page_text: obtained. In order to obtain the necessary reversing motion of the bottom board
simultaneously with the movement of the top board and the levelling up boards
there is at one end of the said rocking shaft a small crank which by means of a
connecting rod is connected to a lever on a way shaft running from side to side of
the jacquard and situated some little distance below the bottom board and towards
one side of the same this way shaft having upright levers which by means of links
are connected to the bottom board which latter is suitably guided so as to move to
and fro towards one or the other cylinder as stated above. The act of turning the
rocking shaft in one direction causes the motion of the crank to be transmitted
through the connecting rod to the lever on the way shaft and to turn the latter
slightly and move the bottom board in one direction the end of the motion of the
bottom board in this direction taking place when the said crank is moved a little
past its dead centre and the cams for moving the top board are locked as stated
above thus locking the bottom board in position for one cylinder. Similarly when
the said shaft is turned in the opposite direction to reverse the jacquard and
bring the other cylinder and cards into operation the motion is similarly transmitted
through the crank and connecting rod and levers and way shaft to the bottom board
and the motion of the latter continues until the crank arrives at a little past its
other dead centre thus locking the bottom board in this position.
We obtain the necessary reversing movement of the trap board simultaneously
with the top and bottom boards and the levelling up boards and other parts of the
mechanism by means of hanging levers jointed to brackets near the top of
the jacquard and at their lower ends connected to arms on the bottom board so as
to move with the bottom board these levers being connected to the trap board by
means of brackets having side rollers or pins between which the banging levers are
situated so that when the bottom board is moved in one or the other direction as
aforesaid the trap board is moved also in the same direction but not so far. In
order to effectually lock the trap board to the shield in either one or the other
position we provide at each end of the trap board two pawls turning on pins fixed
to brackets fixed to the trap board the outer ends of these pawls being constructed
to engage with the shield of the trap board and the other ends of the pawls being
operated by the hanging levers so as to bring either one or the other of each pair
of pawls into operation and effectually lock the trap board to the shield the said
pawls which are in operation being released by the hanging levers immediately
before the trap board commences to slide under the shield when the jacquard is
being reversed. In order to stiffen the said shield of the trap board and prevent
the shield springing we may use small brackets which are fixed to the shield and
are carried round the edge or edges of the trap board to the cross bars underneath
on which the trap board slides and to which cross bars the levers are jointed for
imparting the necessary up and down movement to the trap board.
The mechanism for reversing the Jacquard cylinders and for bringing either one
or other into action and throwing the other cylinder out of action is arranged as
follows: On one end of the said rocking shaft (and preferably at the opposite end
to the crank above described for giving motion to the bottom board) there is fixed
a small crank which by means of a connecting rod and lever imparts motion to a
two armed lever turning on a stud and by preference arranged on about the centre
line of the jacquard and at some distance below the bottoni board. This lever has
one of its arms made as an upright spear shaped lever cam which is inclined
outwardly at both sides from its top end the top end being made flat or slightly
depressed for the purpose hereinafter described. At each side of this spear shaped
lever cam there is a way shaft which we call the cylinder way shafts running from
side to side of the jacquard and adapted to rock in bearings in the side frames.
Each of these cylinder way shafts has upwardly projecting levers which are
connected to slides carrying the bearings of the Jacquard cylinders and each of
these shafts has also a horizontal lever which we will call the cylinder reversing
levers provided with a side pin or roller adapted to be acted upon by the inclined
sides of the spear shaped lever cam. When the reversing or rocking shaft above

page_text: referred to at the top of the jacquard is turned in one direction the crank and
connecting rod attached thereto cause the spear shaped lever cam to be turned
sideways so that its inclined sides act upon the rollers of the two cylinder reversing
levers raising and propping up one lever and throwing the cylinder corresponding
therewith out of action and allowing of the other lever to fall and to bring its
cylinder into action. Then when the reversing shaft is turned in the opposite
direction so as to turn the spear shaped lever cam over in the other direction the
lever which was depressed is by one of the inclines raised and propped up on the
top of the spear shaped lever cam and the cylinder corresponding therewith is
thrown out of action and simultaneously the other lever which was raised is allowed
to fall so as to bring its cylinder into action. Each of the said cylinder operating
levers has a weight banging from it so as to keep its roller in contact with the
spear shaped cam. At the opposite ends of the two said cylinder way shafts there
is on each way shaft a horizontal or almost horizontal lever arm each lever arm
having at its outer end a pin or roller to be operated upon by a horizontal cross
bar of a vertical slide which is moved up and down by means of a connecting rod
from the usual lever which receives up and down motion by a link from the loom
below. Only one of these lever arms is acted upon by the said horizontal sliding cross-
bar at one time the other lever arm corresponding with the Jacquard cylinder which
is out of action and with the cylinder reversing lever which is propped up on the
top of the spear shaped lever.cam being too high for the sliding cross bar to act
upon. The said link which communicates motion from the said usual lever to the
vertical slide is made slotted at its upper end so that the vertical slide can be
moved up and down by a hand lever so as to operate the Jacquard cylinders by
hand when anything goes wrong in the weaving. In order to allow of the trap
board moving up far enough to get a good hold of the knots which are in trap
before the cylinder which is in operation commences to move outwardly the said
slot of the said connecting link is as usual made so loug that it will not begin to
move the vertical slide up before the trap board has moved up to trap the knots
of the vertical cords as aforesaid.
As before stated the levelling up board which is in action has to move to and fro
with the cylinder which is in action. This we effect by the ends of the levelling up
boards fitting in forks on the ends of horizontal slides which are moved by levers
and connecting links from short upright levers fixed on the cylinder way shafts so
that whichever of these two cylinder way shafts with its cylinder is by the spear
shaped lever cam brought into operation the back board corresponding with that
cylinder will be brought into operation also and similarly whichever way shaft
with its cylinder is thrown out of operation the back board corresponding with that
cylinder will be thrown out of operation also. It will be seen that by means of
pulling either one or the other cord of the reversing wheel on the end of the
horizontal rocking or reversing shaft on the top of the jacquard, the jacquard is
immediately reversed from body pattern to border pattern or vice versa.
In order to prevent the possibility of either of the Jacquard cylinders getting
into operation before the other cylinder is out of operation which would be liable
to bend the needles, the upright levers which operate the slides which carry the
bearings of the cylinders are connected together by slotted cross links so arranged
that when one pair of levers with their cylinder are moved inwardly into operation
the cross links cause the other vertical levers to move outwardly the said cross
links being slotted where they are connected to the vertical levers these slots being
of such a length as to allow of the levers moving to and fro when the cylinder is in
operation but so as to push out the one cylinder before the other comes in.
In order to enable either cylinder to be operated by hand turn over or catch
mechanism from one band lever for the two cylinders, whichever cylinder bappens
to be in operation, we employ a catch lever for each cylinder as usual and under-
neath these two catch levers the tail ends of which are near together we provide a
horizontal hand lever turning on a stationary fulcrum at one end and having a cord
attached to the other for convenience of pulling by the weaver. Jointed to this

page_text: hand lever is a small horizontal two armed lever the arms of which are by short
links connected respectively to the tail ends of the catches. By this arrangement
when the hand lever is moved up or down the catch of either cylinder which happens
to be in operation will be actuated and that cylinder turned.
Dated this 12th day of July 1894
Improvements in and connected with Jacquard Looms.
We, THE CHLIDEMA CARPET COMPANY, LIMITED, of Green Street,
Kidderminster, in the County of Worcester, Carpet Manufacturers, and EDWARD
BURGHAM, of Hoo Brook, Kidderminster, aforesaid, Machinist, 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 has reference to those Jacquard looms which are used for
weaving bordered carpets and other bordered fabrics in which two sets of cards
and two cylinders are used one set of cards and one cylinder being arranged say at
the front of the loom and adapted to select and raise the warp threads in the
proper order to form the body pattern, and the other set of cards and cylinder
being arranged say at back of the loom and adapted to select and raise the warp
threads in the proper order for forming the border pattern; mechanism being
provided for bringing either cylinder and its cards into action and for throwing the
other cylinder and cards out of action so that only one cylinder and its cards are in
action at one time. A Jacquard loom of this kind is described in the Specification
of Lamb's Patent No. 4892 of A.D. 1891 and in the Specification of Fawcett's
Patent No. 8261 of A.D. 1889 but from various causes the Jacquard mechanism
described in these Specifications do not always work satisfactorily as they are not
certain in action. The object of this invention is to simplify the mechanism and
ensure perfect action of the jacquard whichever of the two cylinders and its cards
are in operation and to so arrange the mechanism that the ordinary border cards
and body cards of a single jacquard can be used.
We will describe this invention by referring to the accompanying drawings ou
which
Fig. 1 is a general view of a jacquard constructed according to this invention
looking from the front and one side of the same;
Fig. 2 is an elevation looking from the other side of the jacquard ;
Fig. 3 is an elevation of the same side as shewn by Fig. but on an enlarged
scale;
Figs. 4 and
are sectional elevations of the jacquard on an enlarged scale
shewing how the jacquard is arranged to be reversed from body to border and
cice versa;
Fig. 6 is a sectional plan of the part of the same just above the Jacquard
cylinders and needles;
Fig. 7 is a sectional elevation of a part of the trap board and shield of
the same;
Fig. 8 is a plan and Fig. 9 is an end elevation of the shield and part of the trap
board shewing the shield in the position which it occupies when one of the Jacquard
cylinders is at work;
Figs. 10, and 11 shew similar views to Figs. 8 and 9, but with the shield in the
position which it occupies when the other Jacquard cylinder is in operation ;

page_text: separately;
Figs. 14 15, and 16 shew on an enlarged scale an arrangement of catches which
we may use for locking the shield in either position on the trap board;
Figs. 17, 18, 19, 20, 21, and 22 illustrate details of the Jacquard mechanism as
hereinafter described.
The same letters of reference indicate the same or corresponding parts in all the
figures.
As
For the purposes of this invention we employ Jacquard needles A of the usual
kind (see Figs. 4, 5 and 6) arranged horizontally and passing through a needle
plate B' at the front of the loom and through another needle plate B at the back
of the loom the vertical cords c which raise the warp threads being fixed in the
usual way to a top board C and passing through holes in a trap board D of the
kind described in Lamb's Pateut above referred to, that is to say, the holes d' are
as shown in Figs. 4, 5, 8, 10, 12 and 13 arranged in rows and each hole has two
traps marked d³ arranged opposite each other. The said vertical cords e pass
through eyes a' in the needles A as usual and through holes in the bottom board E.
According to one part of this invention the top board C and trap board D and
bottom board E are all so arranged that when reversing the jacquard from body to
border or vice versa the said three boards and the vertical cords c and needles A. are
all moved together a little nearer to that Jacquard cylinder (say for instance the
body pattern cylinder which we will consider is the front cylinder F') which is
being brought into operation to weave the body pattern the cords e hanging down
vertically or nearly so from the top board C through the holes in the trap board D
and through the eyes of the needles A and also through the bottom board E.
the body Jacquard cylinder F1 which is now in operation (see Fig. 4) advances
towards the projecting ends of the needles A the blank spaces of the cards push the
corresponding needles inwardly so that the knots on the vertical cords corresponding
with these needles are caught by the traps as the trap board D rises thus
selecting and raising the warp threads in the proper order to form the body
pattern. Similarly when the jacquard is reversed as shewn in Fig. 5 to weave the
border, the body jacquard cylinder F¹ which was in operation is thrown out of
operation and the top board C trap board D needles A bottom board E and
vertical cords c are all moved away from this body cylinder F¹ towards the border
cylinder F2 which is about to operate thus causing the other ends (that is the right
hand ends in Figs. 4 and 5) of the needles A to project through the other plate B³
to be pushed back by the blank spaces on the cards of the border cylinder F so
that the knots on the vertical cords c corresponding with these needles will be
caught by the opposite traps d' (see Fig. 5) as the trap board rises thus selecting
and raising the warp threads in the proper order to form the border pattern. In
order to cover the traps at that side of the holes d¹ in the trap board D corre-
sponding to the Jacquard cylinder which is out of operation and thus prevent the
cords catching in these traps, we provide a shield something like that described in
Lamb's Specification above referred to made with parallel bars g¹ running from
side to side of the jacquard fixed to end cross bars g² and arranged the same distances
apart as are the rows of holes d' in the trap board D but instead of making this
shield move when the jacquard is reversed as in Lamb's Patent, we fix this shield
to its vertical slides g and we make the trap board D move underneath it either
towards one cylinder or towards the other to cover the traps corresponding with
the cylinder which is out of operation as stated above. This will be clear by an
examination of Figs. 4, 5, 8, 9, 10, and 11 by which it will be seen that when the
body pattern cylinder F is in operation as shewn in Fig. 4 the trap board D has
been moved underneath the parallel bars g of the shield towards this cylinder so
as to cover the traps as shewn in Figs. 4 and 8 corresponding with the border
pattern cylinder F2 which is out of operation. Similarly when the border pattern
cylinder is in operation as shewn in Fig. 5 the trap board D has been moved
underneath the parallel bars g¹ of the shield towards this cylinder so as to cover

page_text: the traps as shewn in Figs. 5 and 10 corresponding with the body pattern
cylinder F which is now out of operation. In combination with the two Jacquard
cylinders F F we employ two levelling up or back boards H' H' as they are
called one of which namely H' is at the front and the other namely H' at the back
of the loom and these backboards are so arranged that when the jacquard is
reversed one of the back boards say H2 (Fig. 4) will be raised and the other back
board H' will be lowered into position between the ends of the needles and that
cylinder F which is out of operation, the said back board H' being made to move
to and fro with the other Jacquard cylinder F which is in operation so as to level up
the ends of the needles every time the Jacquard cylinder F moves back to bring a
fresh card into position. By arranging the parts as stated above the jacquard is
certain in its action whether working with the body cylinder F or with the border
cylinder F
In ordinary five frame Brussels jacquards it is customary for each needle to be
threaded with two cords so that the fifth or bottom frame cords pass through long
eyes a² of the needles A to be lifted every time with the trap board D unless the
needles are moved endwise by the blanks on the cards so as to bring the cords of
the other frames into trap. In order to get this result and enable the ordinary
body and border cards of a single Jacquard loom to be used with the double
jacquard herein described, we make the portion comprising the three parallel
bars g of the shield of the trap board which corresponds with the two last
rows of holes in the trap board (on the right hand side Figs. 4, 5, 8, 10, 12 and 13)
for the bottom frame, separate from the other part of the shield and arranged to be
moved by two end levers y' (one at each end) operated by pins d fixed to the
moving trap board D and engaging in slots in the levers so that when the trap
board D is reversed in position as aforesaid, say from the position shewn by Figs. 8
and 9 to the position shewn by Figs. 10 and 11, the movement of the trap board D
in the direction shewn by the arrow in Fig. 9 causes the levers o' to move the
said small portion 9 9 9 of the shield with the trap board D and in the same
direction but rather farther so as to cover the traps of the fifth frame cords,
see Figs. 10 and 11, in which the knots are not required to catch.
Various arrangements of mechanism may be employed for reversing the positions
of the parts stated above when changing from body pattern to border pattern and
vice versa. We e may employ for instance such arrangements of mechanism as the
following which form parts of this invention, and which we have found to answer
well in practice :-
At the top of the jacquard and adapted to turn through a certain angle in
bearings carried by the side frames 11 of the same we employ a horizontal
rocking shaft J arranged immediately above the top board C and from which all
the various reversing motions are obtained. This shaft is provided with cams j
say four in number engaging with forked brackets corresponding therewith and
fixed on the top board one near each end of the same and the other two at about
equal distances apart from each other and the shaft J has also a hand wheel and
hanging cords or like arrangement at one end (see Figs. 2 and 3) by which the
shaft J can be turned say through half a revolution in either one direction (Fig. 4)
or the other direction (Fig. 5) so that when turned as aforesaid the cams on the
shaft J acting against the forked brackets of the top beard C will cause the top
board C to slide nearer to one cylinder or the other cylinder according to which
cylinder is being brought into operation as stated above. The cams j¹ are so
shaped (see Figs. 4 and 5) as with the forked brackets c³ to form stops and prevent
the top board C being moved too far in either direction.
Fixed on the rocking shaft J and near the ends of the same there are two
wheels or drums h¹² round which pass chains h h which are respectively led over
guide pulley hh' down to the levelling up boards H H which latter thus hang
on the chains see Figs. 1, 2 and 3 and when the shaft J is turned in either one or
other direction as aforesaid one levelling up board is raised whilst the other is

page_text: lowered; thus the necessary reversing movement of the levelling up boards H1 H2
and the top board C is obtained.
In order to obtain the necessary reversing motion of the bottom board E
simultaneously with the movement of the top board C and the levelling up
boards H H there is at one end of the rocking shaft J a small crank (see
Fig. 1) which by means of a connecting rod is connected to a levere on a way
shaft running from side to side of the jacquard and situated' some little distance
below the bottom. board E and towards one side of the same (see Figs. 4 and 5)
this way shaft et having two upright levers e one at each end of the board E
which by means of links es are connected to the bottom board E the ends of which
latter are suitably guided by guides on the side frames I' 1' so as to move to and
fro towards one or the other cylinder as stated above. The act of turning the
rocking shaft J in one direction, say to the position shewn in Figs. 1, 3 and 4,
causes the motion of the crank el to be transmitted through the connecting rod e
to the lever on the way shaft e and to turn the latter slightly and move the
bottom board E in one direction to the position shewn by Fig. 4 the end of the
motion of the bottom board E in this direction taking place when the crank el is
moved a little past its dead centre as shewn in Fig. I and the cams for moving
the top board are locked as stated above thus locking the bottom board in position
for the cylinder F¹. Similarly when the shaft J is turned in the opposite
direction as indicated by the arrows in Figs. 1, 2, 3 and 4 to the position shewn
by Fig. 5 to reverse the jacquard and bring the other cylinder F and cards into
operation the motion is similarly transmitted through the crank e¹ and connecting
rod and lever and way shaft e and levers and links to the bottom
board E and the motion of the latter continues in the direction shewn by the
arrow in Fig. 4 until the crank arrives at a little past its bottom dead centre
thus locking the bottom board E in the position shewn by Fig. 5 for the
cylinder F.
We obtain the necessary reversing movement of the trap board D simultaneously
with the top board C and bottom board E and the levelling up boards H'H' and
other parts of the mechanism by means of the two hanging levers K' K jointed
to brackets k near the top of the jacquard and at their lower ends k² connected
to arms on the bottom board E so as to move with the bottom board E these
levers K K being connected to the trap board D by means of brackets k having
side rollers or pins between which the hanging levers are situated (see Figs. 4
and 5) so that when the bottom hoard E is moved in one or the other direction
as aforesaid the trap board D is moved also in the same direction but not
so far.
In order to effectually lock the trap board D to the shield in either one or the
other position we may provide at each end of the trap board two pawls L L'
(see Figs. 14, 15 and 16) turning on pins fixed to the brackets (which as herein-
before described are fixed.to the trap board D) the outer ends of these
pawls L' L' being constructed to engage with the last bar g' of the shield of the
trap board and the other two ends of the pawls being operated by the hanging
levers K' K2 so as to bring either one or the other of each pair of pawls into
operation and effectually lock the trap board to the shield; the said pawls which
are in operation being released by the hanging levers K K immediately before
the trap board commences to slide under the shield when the jacquard is reversed.
This will be rendered more clear by an examination of Figs. 14, 15, and 16.
In Fig. 14 the pawl L' is engaging with the last bar 9' of the shield and locking
the same to the trap board. When the hanging lever K' commences to move
outwardly in the direction indicated by the arrow in Fig. 14 so as to reverse the
trap board relatively to the shield, the hanging lever K₁ first catches the tail
end 1 of the pawl L lifting the other end of the same free of the shield, then
when the trap board is reversed in position the other pawl L comes into operation:
as shewn in Fig. 15 and thus locks the shield to the trap board in the reversed

page_text: position. Similarly when the hauging lever K¹ commences to move back from
the position shewn in Fig. 15 to the position shewn by Fig. 14, the hanging
lever K¹ first acts upon the heel of the pawl L' so as to lift its end free of the
shield G. In order to stiffen the said shield of the trap board D and prevent the
shield springing we may use small brackets 10 say two in number see Figs. 7 and 11
which are fixed to the shield and are carried round the edge or edges of the trap
board D to the cross bars 9" underneath on which the trap board D slides and to
which cross bars the levers g" are jointed and connected to the usual levers gla
fixed on the rocking shaft M (see Figs. 1 and 3) for imparting the necessary up
and down movement of the trap board D.
cam ni.
The mechanism for reversing the Jacquard cylinders F1 F2 and for bringing
either one or other into action and throwing the other cylinder out of action is
arranged as follows:-On one end of the rocking shaft J see Figs. 2 and 3 (and
preferably at the opposite end to the crank el above described for giving motion
to the bottom board E) there is fixed a small crank m¹ which by means of a
connecting rod m² imparts motion to the two armed lever m³ m turning on a stud m³
by preference arranged on about the centre line of the jacquard and at some
distance below the bottom board E. This lever (shewn separately by Figs. 17)
has one of its arms namely m* made as an upright spear shaped lever cam which is
inclined outwardly at both sides m² m² from its top end m' which is made flat or
slightly depressed for the purpose hereinafter described. At each side of this
spear shaped lever cam m there is a way shaft which we call the cylinder way
shafts marked N1 N2 running from side to side of the jacquard and adapted to
rock in bearings in the side frames I¹ 1. Each of these cylinder way shafts has
upwardly projecting levers marked respectively which are connected to
slides carrying the bearings in the Jacquard cylinders F1 F2 and each of
these shafts has also a horizontal lever marked respectively 01 02 which we will
call the cylinder reversing levers each provided with a side pin or roller o¹ o'
adapted to be acted upon by the inclined sides m³ m of the spear shaped lever
When the reversing or rocking shaft J at the top of the jacquard is
is turned in one direction say to the position shewn in Figs. 2 and 3 the
crank m² and connecting rod m³ attached thereto cause the spear shaped lever
cam m to be turned sideways say towards the right hand so that its inclined
sides m³ m act upon the rollers of o2 of the two cylinder reversing levers 0' 0'
raising and propping up the lever 0 and throwing the cylinder F corresponding
therewith out of action and allowing of the other lever O¹ to fall and to bring its
cylinder F into action. Then when the reversing shaft J is turned in the
opposite direction as indicated by the arrows in Figs. 3 and 4 so as to turn the
spear shaped cam m' over in the other direction that is towards the left hand
the lever which was depressed is by the incline m³ raised and propped up on
the top m of the spear shaped can m* and the cylinder F¹ corresponding there-
with is thrown out of action as in Fig. 5 and simultaneously the other lever O'
which was raised is allowed to fall down the incline me so as to bring its
cylinder F' into action. Each of the said cylinder operating levers 0 0 has a
weight or as shewn in Fig. 3 a spring marked respectively o³ of hanging from it
so as to keep its roller in contact with the spear shaped. cam m*. At the opposite
ends of the two cylinder way shafts N' N there is on each way shaft a horizontal
or almost horizontal lever arm marked respectively P P see Figs. 1, 19 and 20
each lever arm having at its outer end a pin or roller pl p² to be operated upon by
the horizontal cross bar p² of a vertical slide pt which is moved up and down by
means of the pin p' thereof engaging with the slotted end på of the counecting
rod på from the usual lever ps which receives up and down motion by the link p'
from the loom below. Only one of these lever arms P: P' is acted upon by the
horizontal sliding cross bar p³ at one time, the other lever arm that is P' in Figs. 1
and 20 corresponding with the Jacquard cylinder F which is out of action and
with the cylinder reversing lever O' which is propped up on the top of the spear
shaped lever can m' being too high for the sliding cross bar p' to act upon. The
B

page_text: said link p which communicates motion from the usual lever p to the vertical
slide p can be moved up and down by the hand lever p10 engaging under the pin p³
so as to operate the Jacquard cylinders by band when anything goes wrong with
the weaving. In order to allow of the trap board D moving up far enough to get
a good hold of the knots which are in the trap before the cylinder which is in
operation commences to move outwardly the slot p of the connecting link p is as
usual made so long that it will not begin to move the vertical slide p* up before
the trap board has moved up to trap the knots of the vertical cords as aforesaid.
As before stated the levelling up board which is in action (that is H¹ in
Figs. 12, 3 and 4) has to move to and fro with the cylinder F¹ which is in action,
also the levelling up board H will, when in action as shewn by Fig. 5, similarly
have to move to and fro with the other Jacquard cylinder F. This we effect as
follows: The ends of the levelling up board H fit in forks on the ends of
the horizontal slides which are respectively moved by the two levers h
jointed at their upper ends to the side frames of the jacquard these levers being
slotted and engaging with pins 18 fixed on the slides 10". The ower ends of
these levers are respectively connected by the links 115 to the upper ends
of the short upright levers h h fixed on the outer ends of the way shaft N¹ so
that when this way shaft N' and Jacquard cylinder F" are by the spear shaped lever
cam m brought into operation as shewn in Figs. 2, 3 and 4, the back board H¹
corresponding with that cylinder will be brought into operation also, so as to move
to and fro with the cylinder F'; and similarly when this way shaft N' with its
cylinder F is thrown out of operation as in Fig. 5 the back board H' corresponding
with that cylinder will be thrown out of operation also.
In a similar manner the back board H is operated from the way shaft. N2 to
move to and fro with the Jacquard cylinder F2 when this cylinder F is in operation,
that is to say, there are two short upright levers t' (see Figs. 1, 2, 3 and 20)
fixed on to the ends of the way shaft N which by means of the connecting links t³ t₁
are connected to the lower ends of the two hanging levers to which operate the
slides which are respectively formed with the forks 10 in which the
ends of the levelling up board H fit so that when the cylinder F' is thrown into
action by the roller o rolling down the incline me of the spear shaped lever cam in
(and the jacquard is at work) the necessary to and fro motion will by the mechanism
above described be communicated from the way shaft N', to the levelling up
board H*.
'
In order to prevent the possibility of either of the Jacquard cylinders F¹ F
getting into operation before the other cylinder is out of operation which would be
liable to bend the needles, the upright levers f¹f which operate the slides ƒ³ƒ^
which carry the bearings of the cylinders F F are as shewn in Fig. 21 connected
together by two slotted cross links q'g' so arranged that when the pair of
levers with their cylinder F' are moved inwardly into operation the cross
links qq cause the other two vertical levers ƒ ƒ to move outwardly, the said
cross links being slotted at where they are connected to pins f* on the vertical
levers these slots being of such a length as to allow of the levers f'f' moving
to and fro when the cylinder is in operation but so as to push out the one cylinder
before the other comes in..
In order to enable either of the cylinders F F to be operated by hand, turn
over or catch mechanism from one hand lever for the two cylinders: whichever
cylinder happens to be in operation, we employ (see Figs. 1 and 22) a catch lever
for each cylinder as usual, that is to say, there is a catch lever R¹ for the cylinder Fi
and another catch lever R for the cylinder F' and underneath these two catch
levers R R the tail ends of which are near together we provide a horizontal
hand lever S turning on a stationary fulcrum s' at one end and having a cord
attached to the other for convenience of pulling by the weaver. Jointed to this
hand lever S at s is a small horizontal, two armed lever the arms of which are
by the short links connected respectively to the tail ends of the
catches R' R'. By this arrangement when the hand lever is moved up or down

page_text: both the catches will be raised or lowered so as to turn in either direction the
particular cylinder which happens to be in operation.
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 a Jacquard loom of the kind herein referred to provided with two
Jacquard cylinders either of which can be brought into action whilst the other is
maintained out of action, arranging the top board trap board bottom board vertical
cords and needles so as to move slightly and remain nearer to either cylinder which
is being brought into action and thus ensure the needles entering the holes in the
cards, substantially as set forth.
2. In a Jacquard loom provided with two Jacquard cylinders either of which
can be brought into action whilst the other is maintained out of action and
provided as denoted under Claim one with a top board trap board and bottom
board arranged to move slightly towards that cylinder which is being brought into
action, the combination, with the said trap board made with double traps in the
cord holes, of the shield made with parallel bars running longitudinally along from
end to end of the top of the trap board and so arranged that when the trap
board has moved towards that cylinder which is being brought into action the bars
of the shield will cover the traps corresponding with the cylinder which is out of
action, substantially as described.
3. In a Jacquard loom provided with two Jacquard cylinders either of which
can be brought into action whilst the other is maintained out of action and provided
as denoted under Claim one with a top board trap board and bottom board arranged to
move slightly towards that cylinder which is being brought into action, the
combination with the said cylinders top board trap board and bottom board of the
two levelling up boards H H and the means for moving either of them to and fro
and for throwing either of them into or out of action with the corresponding
cylinder, substantially as described.
4. In combination with the trap board D provided with cord holes having a
notch or trap at each side, the employment of a shield made with parallel bars
running longitudinally from end to end of the top of the trap board the latter
being arranged to move to and fro under the shield so that the bars of the latter
will cover the traps for either one cylinder or the other cylinder as may be
desired.
5. In a five frame Brussels Jacquard loom provided with Jacquard needles made
with long eyes for the cords of the bottom frame and also with two Jacquard
cylinders either of which can be brought into action whilst the other is maintained
out of action, the employment of a trap board made with double traps to the cord
holes and provided with a shield made of parallel bars in which the portion for the
holes of the bottom frame cords is made separate from the main portion of the
shield and is arranged to act substantially as herein set forth so that whichever of
the two cylinders is in action the fifth frame cords will be caught by the traps
every time and lifted by the trap board unless their needles are pushed inwardly
by the blanks on the cards, thus enabling the ordinary cards of a five frame, single
Jacquard cylinder loom to be used in a five frame double Jacquard cylinder loom,
substantially as hereinbefore set forth.
6. In a Jacquard loom having a Jacquard cylinder and cards and levelling up
board at the front and another Jacquard cylinder and cards and levelling up board
at the back, the employment of reversing mechanism arranged and operating
substantially as hereinbefore described and illustrated by the accompanying
drawings for throwing and maintaining either Jacquard cylinder and its cards and
levelling up board in action and simultaneously throwing and maintaining the
other Jacquard cylinder and its cards and levelling up board out of action as
hereinbefore set forth.
7. In a two cylinder Jacquard loom having reversing mechanism as denoted by

page_text: the preceding claim the use of mechanism arranged and operating substantially as
hereinbefore described and illustrated by the accompanying drawings for moving
either of the Jacquard cylinders which is in action to and from its needle plate by
hand as herein before set forth.
8. In a Jacquard loom provided with two Jacquard cylinders either of which.
can be brought into action whilst the other is maintained out of action and
provided as denoted under Claim one with a top board trap board and bottom
board arranged to move slightly towards that cylinder which is being brought
into action, the use of mechanism arranged and operating substantially as herein-
before described and illustrated by the accompanying drawings for moving the top
board trap board and bottom board nearer to either cylinder which is being brought
into action and for locking the top board trap board and bottom board in this
position as herein before set forth.
9. In combination with the two Jacquard cylinders of a two cylinder Jacquard
loom, the employment of the two catches R-R connected by links ss to the two
armed levers pivotted on the hand lever S all substantially as hereinbefore
described and shewn by Fig. 22 so that whichever cylinder is in action can be
operated by the one hand lever, as herein before set forth.
10. The general combination of parts constituting the improved two cylinder
Jacquard mechanism arranged for joint operation in the manner substantially as
herein before described and illustrated by the accompanying drawings.
Doted this 10th dow of Now 1805
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.
- CHARLES BOSWORTH KETLEY,
Agent for the Applicants.