IMPROVEMENTS IN WARP LACE MACHINES
Year: 1884

page_text: We JOHN HUDSON of 5 Bell Street, Mechanic and JOHN JARDINE of Raleigh
Street, Lace Machine Builder, both in the Town and County of the Town of
Nottingham, do hereby declare the nature of said Invention for IMPROVEMENTS IN
WARP LACE MACHINES, to be as follows:-
The Invention has for its object a novel arrangeinent, construction and com-
bination of parts whereby we are enabled to give short and easy motions to the
various parts of the machine to produce more work and extensive patterns, to
obtain a full view of all parts of the machine while the same is in motion, whilst
at the same time all the beams and bars are easy of access and of adjustment,
the standards are low and the various parts are so arranged as to obstruct the light
as little as possible.
In carrying the Invention into effect we employ a bar of needles which are
arranged in a horizontal plane or thereabouts and with the barbs on the undersido
thereof. This needle bar is operated by bars which are suitably guided and it
receives its to and fro motion from a suitable cam and connections.
The guides are fixed in leads mounted upon a rocking bar which has also an
end wise motion given to it at the desired times so as to shog the warp threads and
lap them around the needles.
P
This end wise motion to the guide bar is given thereto by a side cam thus
dispensing with a cross shaft at the end of the machine. Above the needles is a
fixed "trick" bar which is formed in the following manner.
The lower edge of
the "trick" bar is formed with cross grooves and with deeper narrow cuts in
which are fixed steel blades thus forming a number of grooves which are alternately
of different depths. The shallow grooves receive the needles and thereby keep them
in their proper position whilst the deeper grooves which are intermediate of the
shallow grooves receive the "picker" points and enable the latter to take the throws
of the fancy or fining threads and to hold them up above the needles as the latter
move in one direction to draw the loops and until they have returned under a
back support bar which is placed near to the "trick" bar and serves to hold the
work steady between the same and the "trick" bar. This back support bar also
acts as a support to the stems of the needles whilst the presser is acting upon the
barbs thereof.

page_text: The presser is carried by arms fixed to a rocking shaft which receives its motions
from a suitable cam.
S
The "picker" points are carried by leads fixed to a bar which is operated by a
cam and suitable connections in such manner as to cause the said "picker" points
to receive a forward and rising motion for the purpose of carrying the throws of
the fancy or fining threads up above the needles and a backward and downward
motion after the loop has been drawn to release the said fancy or fining threads
therefrom and to assume a position in readiness to again enter between. such
threads after they have been traversed for a fresh action of the parts. The fining
or fancy threads are traversed by means of perforated steel or other guide bars
through which such threads are passed and such perforated steel or other guide
bars extend from end to end of the machine and are arranged in vertical planes
which arrangement in combination with the peculiar action of the "picker" points
enables a larger number of guide bars for operating the fancy or fining threads to
be employed than heretofore.
The work is taken up by a "quality" roller which is covered with a suitable
surface to take hold of the work and which is rotated at a regular speed so as to
ensure the work being regularly produced and the work is passed from such
quality" roller on to a work beam which is rotated by surface friction from the
quality" roller.
"
$$
If desired the pattern may be produced by means of two or more guide bars for
traversing the fancy or fining threads, in combination with jacks or interceptors
operated by a "Manchester" or other suitable Jacquard or selecting apparatus.
The jacks or interceptors are guided at their upper ends and are preferably
sprung toward the fining or fancy threads whilst they are drawn in the contrary
direction by the Jacquard:
t
The beams for carrying the fancy or fining threads are placed at the lower part
of the machine and the beam for carrying the warp threads may be also placed at
the lower part of the machine in which case the threads therefrom would be
carried up through a sley and thence over a guide rod to the guides or such beam
may be placed at the back part of the machine above the main shaft and the
threads in such case would pass through a sley and then under a guide bar to 'the
guides.

page_text: We JOHN HUDSON of 5 Bell Street, Mechanic, and JOHN JARDINE of Raleigh
Street, Lace Machine Builder, both in the Town and County of the Town of
Nottingham do hereby declare the nature of our said Invention for IMPROVEMENTS
IN WARP LACE MACHINES, and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement:-
The invention has for its object a novel arrangement, construction and combi-
nation of parts whereby we are enabled to give short and easy motions to the
various parts of the machine, to produce more work and extensive patterns to
obtain a full view of all parts of the machine while the same is in motion whilst
at the same time all the beams and bars are easy of access and of adjustment the
standards are low and the various parts are so arranged as to obstruct the light as
little as possible.
In carrying the invention into effect we employ a bar of needles which are
arranged in a horizontal plane or thereabouts and with the barbs on the underside
thereof.
This needle bar is operated by bars which are suitably guided and it receives its
to and fro motion from a suitable cam and connections.
The guides are fixed in leads mounted upon a rocking bar which has also an
endwise motion given to it at the desired times so as to shog the warp threads and
lap them around the needles.
This endwise motion to the guide bar is given thereto by a side cam thus
dispensing with a cross shaft at the end of the machine.
.
Above the needles is a fixed "trick" bar which is formed in the following
manner. The lower edge of the "trick" bar is formed with cross grooves and witli
deeper narrow cuts in which are fixed steel blades thus forming a number of
grooves which are alternately of different depths. The shallow grooves receive the
needles and thereby keep them in their proper position whilst the deeper grooves
which are intermediate of the shallow grooves receive the "picker" points and
enable the latter to take the throws of the fancy or fining threads and to hold
them up above the needles as the latter move in one direction to draw the loops
and until they have returned under a back support bar which is placed near to the
"trick" bar, and serves to hold the work steady between the same and the "trick"
bar; This back support bar also acts as a support to the stems of the needles
whilst the presser is acting upon the barbs thereof.
The presser is carried by arms fixed to a rocking shaft which receives its motions
from a suitable cam.
.
The "picker" points are carried by leads fixed to a bar which is operated by a
cam and suitable connections in such manner as to cause the said "picker" points
to receive a forward and rising motion for the purpose of carrying the throws of
the fancy or fining threads up above the needles aud a backward and downward
motion after the loop has been drawn to release the said fancy or fining threads
therefrom and to assume a position in readiness to again enter between such
threads after they have been traversed for a fresh action of the parts. The fining
or fancy threads are traversed by means of perforated steel or other guide bars

page_text: "
through which such threads are passed and such perforated steel or other guide bars
extend from end to end of the machine and are arranged in vertical planes, which
arrangement in combination with the peculiar action of the " picker points
enables a larger number of guide bars for operating the fancy or fining threads to
be employed than heretofore.
The work is taken up by a "quality" roller which is covered with a suitable
. surface to take hold of the work and which is rotated at a regular speed so as to
ensure the work being regularly produced and the work is passed from such
"quality" roller on to a work beam which is rotated by surface friction from the
quality" roller.
"
If desired the pattern may be produced by means of two or more guide bars, for
traversing the fancy or fining threads, in combination with jacks or interceptors
operated by a "Manchester " or other suitable Jacquard or selecting apparatus.
The jacks or interceptors are guided at their upper ends and are preferably
sprung from the fining or fancy threads whilst they are drawn in the contrairy
direction by the Jacquard.
The beams for carrying the fancy or fining threads are placed at the lower part
of the machine and the beam for carrying the warp threads may be also placed at
the lower part of the machine in which case the threads therefrom would be carried
up through a sley and thence over a guide rod to the guides or such beam may be
placed at the back part of the machine above the main shaft and the threads in
such case would pass through a sley and then under a guide bar to the guides.
·
And in order that our said invention may be more clearly understood and readily
carried into effect we will proceed aided by the accompanying drawings more fully
to describe the same.
DESCRIPTION OF THE DRAWINGS.
Figure 1. is a vertical cross section, Figure 2 is a partial end view and Figure 3
is a partial plan of a warp lace machine constructed according to our invention.
Figures 4 to 8 are detail views of parts drawn to the same scale as Figures 1, 2,
and 3 and Figures 9 to 14 are detail views of parts drawn full size.
A is the main framing B is the driving shaft and C is the cam shaft.
a a represent the needles which are... fixed to a bar a¹ they are arranged in a
horizontal plane or thereabouts and with the barbs on the underside thereof.
This needle bar a¹ is fixed to and operated by hars a² which are suitably guided
in bearings A' and it receives its to and fro motion from cams a' which act upon
the trucks or pulleys a³ mounted on the bars a².
bb are the guides which are fixed in leads mounted upon a rocking bar b'; this
rocking bar is mounted in arms b
62*, fixed to a fixed shaft b³ and the said bar 6¹ is adjustable in height by means
of a screw b acting upon each arm 62* as shown at Figures 3 and 5.
The required rocking motion is given to the bar b' in the following manner.
On the said bar b' are fixed forked arms 65 in the, forked end of each of which
is fixed a pin 6°. These pins pass through slots formed in one end of levers 67
which are mounted at or near their centres on studs 68 carried by brackets A²
carried by the longitudinal bar A³ and at their other ends are provided with trucks
or pulleys b which rest on cams 60 by which aided by springs b¹¹ the said levers b?
are caused to give the necessary rocking motion to the bar b¹.
An end wise motion is given to the rocking bar b₁ at the desired times so as to
shog the warp threads and lap them around the needles a by means of a lever b¹ª
mounted at or near its centre on a stud or axis 613 and having at one end an.
adjustable nib 6 which is acted upon by a side or face cam 61s whilst the other
end of said lever b12 acts against the head of, a bolt 61 which is adjustably fixed
in the end of the rocking bar b₁, the return endwise motion of the said bar b' is
effected by a spring b and the extent of such return motion is adjusted by an
adjustable bolt 618 which acts to limit the motion of the lever in that direction.

page_text: 4
By giving this end wise motion to the bar b¹ by means of a side or face cam we
dispense with the use of a cross shaft at the end of the machine..
Above the needles a is a fixed "trick" bar c which is formed with
number of
grooves c c which are alternately of different depths; the shallow grooves c'
receive the needles and thereby keep them in their proper position whilst the
deeper grooves c³ receive the "picker" points d and enable the latter to take the
throws of the fancy or fining threads and to hold them up above the needles a as
the latter move in one direction to draw the loops and until they have returned
under a back support bar, or facing bar e which is placed near to the "trick" bar c
and serves to hold the work steady between the same and the trick bar c.
Two methods of constructing this trick bar a are shown at Figures 9 to 13. In
the construction shown at Figures 9 and 10 the lower edge of the "trick" bar c
is formed with cross grooves and with deeper narrow cuts in which are fixed steel
blades c³ projecting slightly beyond the lower edge of the "trick" bar c by which
means the spaces between the projecting ends of the blades c³ form the shallow
grooves c' and the deeper spaces between the blades c³ form the grooves c³.
"
In the construction shown at Figures 11, 12 and 13 the "trick." bar c is formed
with alternately shallow grooves c₁ for the needles a and deeper grooves ca for the
*picker" points & whilst a steel plate c' formed with shallow grooves corresponding
to the grooves c' is fixed to the back of the trick" bar c by which means the
needles a are prevented from springing out of the shallow grooves c¹ into the
deeper grooves c2 in consequence of the substance of the plate c intermediate of
the grooves therein coming opposite the deeper grooves c³. If desired a similar
plate c may be fixed to the back of the trick" bar represented at Figures 9
and 10. By the employment of a "trick" bar constructed with alternately
shallow and deeper grooves c¹ c² a better support is given to the needles, keeping
securely their place whilst it enables the " picker" points d to carry the threads
over the heads of the needles without the intervention of any other instrument.
"
The back support or facing bar e in addition to acting to prevent the work
coming forward with the needles also acts as a support to the stems of the needles a
whilst the presser f is acting upon the barbs thereof.
°
The "picker" points d are carried by leads which are fixed to a bar d¹ which
receives the necessary motions in the following manner. The bar d' has fixed
thereto arms or links d² which are pin jointed to levers d³ mounted at their lower
ends on the shaft or axle d' and such levers are forked at their upper ends and are
there provided with trucks or pulleys d d which are acted upon respectively by
cams d d to give the required backward and forward motions to the "picker"
point bar d¹.
The bar d¹ has also pin-jointed thereto links or connecting rods do which at their
lower ends are pin jointed to the front ends of levers do mounted on the axis d
and formed or provided at their rear ends with counterbalance weights which
are bored to receive a rod or bar d by which all the levers d¹º are connected
together and caused to work in unison.
These levers are also formed each with a rising forked arm ds which is
provided with trucks or pulleys dds which are acted upon respectively by
cains d d to give the required rising and falling motions to the "picker" point
bar d. By these means the "picker" points d receive a forward and rising motion
for the purpose of carrying the throws of the fancy or fining threads up above the
needles a and a backward and downward motion after the loop has been drawn to
release the said fancy or fining threads therefrom and to assume a position in
readiness to again enter between such threads after they have been traversed for a
fresh action of the parts.
The "picker" points are made straight and by using the same in combination
with the improved "trick" bar, we secure a perfect take up even when a great
number of the threads are inclined from a vertical position.
The back support or facing bar e is carried by arms e fixed to a shaft or axis e
mounted in the arms 62 and such bar e is held in its normal position as shown in'

page_text: .
the drawings by the tails es of the arms el bearing against the under side of the
fixed shaft 63 whilst the said bare is capable of being turned away from the work
and into the position shown by the dotted lines in Figure 1 by means of the
bandle e
The presser bar f is carried by arms f¹ which are fixed to a shaft or axis f? to
which are also fixed arms or levers f³ carrying trucks or rollers f* which rest
against cams f fixed on the shaft or axis C by which means the presser bar fhas
the required motions imparted thereto. g is a bottom support or facing bar which
we find necessary to employ in order to prevent the work from being pulled under
the "trick bar c in the backward motion of the needles a and thereby prevent
injury to the work..
This bar. g. is carried by arms g which work in guides g? fixed to the underside
of the bar d! and the rear ends of these arms g' are provided with studs g³ which
fit within cam grooves g' formed in brackets g fixed to the longitudinal bar A³ of
the framing A. Thus on the upward motion of the "picker" point bar d the
bottom facing. bar g is carried with it and consequent on the form of the cam
grooves g it is at the same time carried forward into the position shown at
Figure 1 in which position it prevents the work from being drawn back by the
needles; on the downward motion of the "picker" point bar d' the bottom facing
bar g is drawn downward and backward away from the work in order to permit
of the required free motion of the fancy or fining threads.
The fining or fancy threads h are traversed by means of perforated steel or other.
guide bars operated by Jacquard and through which such threads h are passed
and such perforated steel or other guide bars i extend from end to end of the
machine and are arranged in vertical planes which arrangement in combination
with the peculiar action of the " picker" points d enables a larger number of guide
bars for operating the fancy or fining threads to be employed than heretofore
thereby enabling more extensive and more elaborate patterns to be produced.
The work is taken up as usual by a "quality" roller j which is covered with a
suitable surface to take hold of the work and which is rotated by suitable gearing
(as is well understood but which is not shown in the drawings) at a regular speed
so as to ensure the work being regularly produced, and the work is passed from
such "quality" roller on to a work beam / which is rotated by surface friction
from the "quality" roller j and which is capable of rising in the slots.
The beams for carrying the fancy or fining threads h are placed at the lower.
part of the machine and the beam for carrying the warp threads may also be
で
placed, as shown, at the lower part of the machine in which case the threads there-
from would be carried up through a sley 2 and thence over a guide rod (the fixed
bar b³) to the guides bor such bean luay be placed at the back part of the
machine above the main or cam shaft and the threads in such case would pass
through a sley and then under a guide bar to the guides b.
If desired the pattern of the fabric may be produced as shown at Figure 15 by
means of two or more guide bars i for traversing the fancy or fining threads, in
combination with jacks or interceptors m operated by a Manchester" or other
suitable, Jacquard or selecting apparatus acting thereon by cords m and jack
levers m².
The jacks or interceptors m are guided at their upper ends by a sley or comb n
and in the arrangement shown in the drawings are sprung away from the fining or
fancy threads whilst they are pulled towards the same by the action of the
Jacquard. If desired however the contrary arrangement can be adopted as herein-
before described.
By the improved machine as above described the various movements are so
arranged that the threads are subjected to much less tension and friction and the
machine in consequence, breaks fewer threads and may be driven much faster than
has hitherto been found practicable
•
The following is the mode in which the various parts co-operate in the production
of work.

page_text: In commencing a course of work the needles a move forward to receive the warp
threads from the guides b. The guides move downward to the right of the
needles, are shogged to the left and then rise thus lapping the warp threads
around the needles a the needles then recede, the presser frises at the same time
and closes the beards of the needles, during which operation the needle stems are
supported by the back support or facing bar e and the needles continuing to recede
the loops are drawn over the heads of the needles, during these movements the
guides 6 are travelling to their original position in readiness for a fresh movement
of the parts.
On the forward motion of the needles a the "picker" points & move forward,
rise above the heads of the same, thereby assisting to draw the loops in addition to
holding the fining threads h above the needles a so as to allow the latter on their
forward motion to pass the fining threads on the opposite side to that on which
they had been passed previously, the necessary traverse to the right or left being
given to the fining threads h by the bars i. Whilst the needles a are returning to.
their forward position the back support or facing bar e prevents the work from
moving forwards with the needles. The "picker" points d then move downward
and backward to assume a position in readiness to move forward over the guides
to again gather the fining threads h after they have been traversed for a fresh
action of the parts.
In the backward movement of the needles the bottom support or facing bar g
prevents the fining threads from being drawn into the "trick" bar c. The
combination of the facing bars e and g ensures the "picker" points & putting the
fining threads h beyond the needles.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is
1. The peculiar arrangement, construction and combination of parts of a lace
machine substantially as herein shown and described and for the purpose stated.
2. The improved "trick" bar c constructed with alternately shallow and deeper
grooves substantially as herein shown and described and for the purpose stated.
Dat this you
1