Year: 1892

page_text: Date of Application, 1st July, 1892
Complete Specification Left, 30th Mar., 1893-Accepted, 13th May,
1893
I, AMOS LOCKWOOD of King Cross, Halifax in the County of York, Machine
Maker, do hereby declare the nature of this invention to be as follows, that is to
say:-
The first part of my invention relates to improvements in "single-lift" Jacquard
machines and consists of arranging same so that the springs in the spring-box for
assisting the pattern cards in their operations on the needles is entirely dispensed
with, and said machines are arranged to operate the threads of warp, so as to form
an opening for the shuttle, from a central position or from their elevated or top
position.
To accomplish this object I arrange and form the upright or lifting needles, as
also several of the other parts of the machine in such relative positions and in such
a manner that the strain on the neck-bands or cords attached to the lower
extremities, answers all the purposes for which the springs in the spring-box have
heretofore been employed.
To allow freedom for the action of said strain on the needles I arrange them so
that at their time of being changed by the pattern cards, they are suspended from
the bars of a grid-like frame which is made to move in an opposite direction to
that moved by the ordinary lifting bars above which it is mounted, and on said
needles I form operating hooks about midway their length by which means, and
by the bottom-board, through which the cords from said needles pass, being
arranged so that when said needles are at the proper elevation where said change
by the operations of the cords is effected, it, said bottom-board, will hold or guide
the said cords so that the direction in which the forces caused by the weight of
the warp and lingoes (or depressing weights) act upon them (said cords) will not
be straight in line with the needles but will be so far out of line therewith as will
always tend to pull or force same into or out of connection with their lifting bars
as the case may be for which they are arranged, their pattern cards effecting their
movements in the opposite directions whether the one arrangement or the other is
employed.
The arrangement of a moveable grid-like frame above the lifting-bars as above
described produces a machine that forms the "shed" or opening for the shuttle
from a central position of the warp, one part thereof descending and the other
ascending from this said central position as will be understood. However, by
arranging the upright needles to have suspending hooks near their lower
extremities, dispensing with the ordinary lifting-bars and mounting a series of
stationary bars in proximity with these said hooks on the needles, upon which
stationary bars they (said hooks) are made to lay hold as and when indicated upon
by the pattern cards so to do, by which means when said needles are to be
inoperative their said hooks are brought into contact with their said stationary
bars and caused to remain in their elevated position, a machine is produced that
will "shed or form a passage for the shuttle by causing the warp threads to
descend from their highest positions.
"
By arranging the stationary cross bars so that by suitable mechanism they may
have lateral movement imparted to them by the operative, said cross bars may be
thereby moved to be out of the way of all the hooks on the upright needles so that
as the lifting bars descend all the threads of warp will be lowered into their lowest
positions thus the object of "levelling" the warp may be effected whenever
desired, and this arrangement of moveable cross bars may with equal advantages

page_text: be also employed in connection with the "double-lift" jacquards hereinafter
described.
The second part of my invention relates to "double-lift" jacquards and consists
of the arrangement and construction of the parts forming these machines in such
a manner that by the employment of the arrangement of certain of the means
herein before described a "double-lift" machine may be produced wherein the
threads of warp are caused to remain or "dwell" in their raised as well as in their
lowered positions.
To accomplish the object of this part of my invention 1 make use of the
vertically moving grid-like frame hereinbefore described in addition to the usual
double series of lifting bars in the jacquard, to which I also add the series of
stationary bars for maintaining the upright needles in their raised positions. The
grid-like frame upon which the upper ends of the needles are hinged or over the
bars of which their looped ends pass as hereinbefore described is now required to
be stationary and the length of each of said bent ends of the needles has to be such
that they are not lifted clear of said bars when raised by their lifting-bars to their
highest positions.
On each needle and in proper positions relatively with each other are formed
three hooks, one on the main body of the needle which extends to pass over the grid-
like frame, while the other two are on the other extremity of the needle which to
allow the necessary elasticity is bent back upon the main body part, the neck-
band being attached to the lower bend of the needle.
Two of the said hooks, one on the main part and the upper one on the bent part
are for operating in connection with the ordinary lifting bars while the third which
is near the lower extremity of the bent part is for laying hold of the stationary
bar at the bottom of the machine at each time that its needle is raised to its
highest position if caused so to do by the pattern cards, and when it has to descend
from this raised position said pattern cards will move it from thus laying hold of
the stationary bar when it is liberated by the lifting-bar with which it is desired
that it should descend.
To enable those hooks of the needles that are not in connection with their
lifting-bars during their descent, to keep clear of the other bars that are rising
these said pairs of operating bars are slightly diverted from their vertical paths of
motion and travel laterally in opposite directions at those parts only where the
hooks are passing the ascending bars. The said lateral movement in each case
being at about the central part of the path in which the said bars travel.
To effect this lateral movement of the lifting-bars, antifriction rollers mounted
thereon are made to operate in suitable guide slots or are made to move against the
inclined ends of levers that are rigidly held in one direction while loosely held in
the opposite direction.
Dated this 30th day of June 180°
AMOS LOCKWOOD.
COMPLETE SPECIFICATION.
Improvements in Jacquard Machines.
I, AMOS LOCKWOOD of King Cross, Halifax in the County of York, Machine
Maker, 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, that is to say :-
The first part of my invention relates to improvements in "single-lift" Jacquard
machines and consists of arranging and forming or constructing certain parts of
same so that the springs in the spring-box for assisting the pattern cards in their
operations of the needles are entirely dispensed with, and said machines are
arranged to operate the threads of warp so as to form an opening for the shuttle

page_text: from a central position or from their elevated or top positions or by a modification
to effect such object by moving the threads of warp from their bottom positions.
The second part of my invention relates to "double-lift" Jacquard machines and
consists of the arrangement and construction of the parts forming these machines
in such a manner. that by the employment of certain of the improvements above
referred to as being applicable for use in single lift jacquards, double lift machines
may be produced wherein the threads of warp are caused to remain or "dwell"
in their raised or elevated as well as in their lowered or depressed positions.
In order that my said invention may be readily understood, I have hereunto
appended sheets of drawings illustrative thereof, to which by figures and letters,
reference is made in the following description.
Fig. is illustrative of two vertical needles and their horizontal or operating
needles and shows their operating griffe or grid as also their operating bars in
cross section, the other parts and the framework of the machine being omitted.
since they may be of any of the well known kinds.
Fig. 2 is a similar view to Fig. 1 but shows that by arranging the needles to be
operated only by their operating bars, a machine is produced that operates the
warp from its top position.
Figs. 3 and 4 are end and front elevations of a double-lift jacquard in which my
method of construction is followed.
Fig. is a vertical section of a portion of the machine illustrated by Figs. 3
and 4, in order to show the formation of the vertical needles (of which only four
are shown to avoid complexity) as also their method of arrangement.
Figs. 6, 7, and 8 are drawings in detail illustrative of parts hereinafter
described.
Similar letters and figures of reference indicate similar parts throughout the
several views.
To attain the object of my invention I form and arrange the upright or lifting
needles a, as also the horizontal needles b, the bottom board c, cross bars d, and
operating grids in such relative positions and in such a manner that the strain on
the neck bands or cords e, which are attached to the lower ends of the needles a in
the well known manner, answers all the purposes for which the springs in the
spring box have heretofore been employed.
To allow freedom for the action of said strain on the needles a 1 arrange them
so that at their time of being changed, moved or operated upon by the pattern
cards, they are suspended from the bars d, which form a kind of grid, and which
have vertically reciprocatory motion imparted to them these movements however
being arranged or regulated to be at all times in an opposite direction to those of
the ordinary grids above which they are mounted, and on said needles a I form
operating hooks a¹ about midway their length by which means and by the bottom
board through which the cords or neck bands e pass, being arranged so that
when said needles are at the proper elevation where said change by the operations
of the pattern cards is effected, it, said bottom board c, will hold or guide the said
cords e so that the direction in which the forces caused by the weight of the warp
and lingoes (or depressing weights). act upon them (said cords e), will not be
straight in line with the needles a but will be so far out of line therewith as
will cause said weight always to tend to pull or force same into or out of con-
nection with their grids as the case may be for which they are arranged (the
former method or arrangement wherein these needles are pressed against these
said grids being the one preferably followed, and the one shown by all the
appended drawings, since by this arrangement the perforations of the pattern cards
are employed to cause movements in their corresponding warp threads in the same
manner as do the usual and well known kind of jacquards) their pattern cards
effecting their movements in the opposite direction whether the one arrangement or
the other is employed.
The arrangement of the moveable bars d to operate in unison, with, yet withal at
all times in an opposite direction to the grids f above which they are mounted,

page_text: produce a machine that forms the "shed or opening for the shuttle from a central
position of the warp, one part thereof descending and the other ascending from the
said central position as will be understood. However by arranging the bars d to
be stationary, the grids fabove being employed for operating the needles a the
machine thus produced will always raise the threads of warp from their lowest
position as is usual in all Jacquard machines of the ordinary kind. Yet again by
arranging the bars d to be operated as first before described and by forming
suspending hooks a² on the needles a at or near their lower extremities, dispensing
with the ordinary grids and mounting stationary grids f¹ in proximity with the
said hooks a upon which stationary grids said hooks a² are made to lay hold as
and when indicated upon by the pattern cards so to do, by which means when said
needles are to be inoperative their said hooks a are brought into contact with their
grids and caused to remain in their elevated positions, a machine is produced
that will "shed or form a passage for the shuttle by causing the warp threads to
descend from their highest positions.
22
By arranging, the grids so that by suitable mechanism they may have a lateral
movement imparted to them by the operative or weaver although their grids fare
otherwise stationary, these grids f¹ may be thereby moved to be out of the way of
all the hooks a so that as the bars d descend all the threads of warp will be
lowered into their lowest positions thus the object of levelling the warp may be
effected whenever desired, and this arrangement of laterally moving grids may
with equal advantages be also employed in connection with the double-lift
Jacquard machines hereinafter described, such grids in this latter case being
referred to as f³.
Respecting the second part of my invention I make use of the vertically moving
grids and which are of the old and well known kind and which are operated
in the usual manner and by the usual means, although I preferably operate these
grids and f' by coupling the loom's ordinary operating mechanism by the
rods gg to the upper grids, the guide bars for maintaining the same in
position being coupled by the chains kk which pass over the pulleys m m³, to the
guide rods n n' attached to the grids so that as the looms mechanism causes the
grids to rise, the grids f* will by gravity descend by reason of their chains k k¹
allowing them so to do, the reverse movement of said grids f³ imparting a rising
movement to those f* as will be understood.
In addition to this double series of operating grids f³ and I also employ
the stationary series of cross bars and the stationary grids, the former
supporting the needles a when in their lowest positions while the latter sustain
them in their highest positions, the long looped or folded part a' on these needles a
corresponding with that on the needles a in Figs. 1 and 2, the purposes for which
are alike, that is, for guiding or keeping the respective needles in position when
raised from being supported by their bars d and d respectively.
On each needle a and in proper positions relative with each other are formed
three hooks a, a and as, the two former a' and a being for operating their
respective needles when they are placed into contact or made to lay hold of their
grids and respectively while the latter is for sustaining them in position as
above described, at each time their respective needles are raised to their highest
position, if caused so to do by the pattern cards o on the cylinder o! operating their
respective needles b, and when they have to descend from this raised position, said
pattern cards ol will move them from laying hold of the grids when they are
liberated from thus laying hold by reason of being raised by one or other of their
operating grids f³ or f, as and when said cards o' are prepared or arranged to
effect this purpose.
From the foregoing description it will be seen that the actions of this machine
are as follows,-
Supposing any of the needles at that happen to be in their lowest positions were
required to be raised to their highest positions, then by an opening or hole in its
pattern card o¹ on the cylinder o, being presented to its respective horizontal

page_text: needle no motion would be imparted to this needle a consequently its hooks að
and a would be in the paths of motion of the grids and 13 respectively so
that the said needle would by one or the other of these grids be raised to its highest
position and provided it was desired, that this needle should be retained in this
position, by another hole in the next card o being presented to its said respective
needle thus allowing its said needle to remain stationary the strain on the
needle a as above described, will cause it to bring its hook as over the grid ƒ³ and
so the needle a will be prevented from descending.
However, supposing any of said needles a', which happened as before to be
in their lowest positions, were required to remain so, then by a blank or intact
part of one or other of the cards of being presented to its respective needle it
will be pressed in the direction of the arrow a so that its hook as will be moved in
this said direction clear of the grid, while by said bottom part of the needle a¹
being thus moved in this direction when such lateral movement is prevented at
about its middle part by reason of its being in contact with the bars d, its other or
outer end on which is formed the hook a is moved in a direction opposite to that
indicated by said arrow, the bars & serving as a kind of fulcrum to enable such
an action to be performed; such movement of the hook as carrying it clear of the
path of motion of its grid 3 consequently neither by the grid f nor the grid ƒ³ is
the needle a at this time moved.
Again supposing that any of the needles a are in their raised positions and are
required to descend, provided that they are in contact with or being supported by
the grids, then by one or the other of the grids for ³, as the case may be
whether it is the one or the other that is approaching its highest position, slightly
raising same so that their hooks as may be raised above or out of contact with the
grids, by said blank parts of the cards o' being presented to their respective
needles these said needles are again pressed in the direction of the arrow
that their hooks a are clear of the grids and so. may descend with the one or
the other of the grids for f³ as it returns from having reached its highest
position as above described, thus the needles required to descend are caused
so to do.
so
As will be seen, if no provision was made for preventing those of said needles a*
which were being lowered say by their hooks aª being in contact with their grids /*
from allowing their hooks a to come into contact with their then ascending grid 4
(or vice versa, that is to say, those of said needles a' that are being lowered by
their hooks a being in contact with their grids ft from allowing their hooks a
to come into contact with their then ascending grid *) said needles a* would
never be allowed to descend lower than their central position, however to
obviate this I mount extra grid or guide rails p and p above the grids f
and respectively. These guide rails p and p₁ are mounted upon the frames
in which the grids f and fare fixed so that they may move therewith at all
times throughout the entire vertical movements of the said grids and
In addition to this vertical movement on the part of the guide rails p p' a slight
lateral horizontally reciprocatory motion is imparted to them by means of the
bowls and sliding in the cam grooves s s' as these guide rails
p¹ rise and
fall such slight lateral motion is effected by the adjustment of the cam surfaces
in the cam slides to be at the time that one or other of the hooks a³ or a is
passing its respective grid for f³ in its descent as is above described, and at such
time or on such lateral movement the guide rails p p are moved so that each one
of them is brought to be vertically above its respective grid for ³ as is shown
in broken lines Fig. 5 thus these hooks a and a are prevented at this part from
laying hold of their grids for f³.
Since it is only necessary that the lateral motion of the guide rails pp' should be
effected during the ascent of their respective grids fand, other means than the
cam grooves
might be employed, such as the hinged cam levert (see Figs. 6, 7
and 8) which are hinged to the framework carrying the guide rails ppl in such a
manner that as they are moving vertically they are rigid against said framework in

page_text: order that their inclined ends might press against the projections & attached to the
machines framework the action thereon being to impart the desired lateral move-
inent to said guide rails p p³, however on the descent of these rails the lever t will
be moved on its fulcrum by contact with the projection u and so the guide rails will
remain stationary.
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 and employment in a Jacquard machine of needles formed and
arranged so as to support their neck bands at all times during the operations of
their respective needles from a position higher than their said horizontal needles
substantially as and for the purpose specified.
2. The combination in a Jacquard machine, of vertical needles formed to be
supported at a point higher than their operating or horizontal needles at all times
during the operations of said horizontal needles with an arrangement of bottom
board in said machine enabling the strain on the neck bands and said vertical
needles to effect the movement of the horizontal needles without the employment of
springs for this purpose substantially as set forth.
3. In a double-lift Jacquard machine the combination of vertical needles having
the several hooks formed thereon as described, one of such hooks on said needle
being of sufficient length to answer as a guide for same, the cross bars for guiding
said vertical needles, the guide rails for causing the needles to avoid being caught
in their descent by the rising grids, and means for imparting lateral motion to
those guide rails substantially as specified.
- outh dow of March 1893