IMPROVEMENTS IN JACQUARD MACHINERY, AND IN THE APPARATUS CONNECTED THEREWITH
Year: 1854

page_text: LETTERS PATENT to John Lamb and Thomas Lamb, both of Kidder-
minster, in the County of Worcester, Machinists, for the Invention of
"IMPROVEMENTS IN JACQUARD MACHINERY, AND IN THE APPARATUS CONNECTED
THEREWITH."
Sealed the 6th February 1855, and dated the 16th August 1854.
PROVISIONAL SPECIFICATION left by the said John Lamb and Thomas
Lamb at the Office of the Commissioners of Patents, with their Petition,
on the 16th August 1854.
We, JOHN LAMB and THOMAS LAMB, both of Kidderminster, in the County
of Worcester, Machinists, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN JACQUARD MACHINERY, AND IN THE APPARATUS CONNECTED
THEREWITH," to be as follows:-
This Invention relates more especially to certain additions to, and modifi-
cations of, the existing jacquard apparatus used in the manufacture of Brussels
carpets, although some of the improvements are applicable to jacquard apparatus
used for other purposes.
By these improvements a greater certainty of action is obtained, and the
machine is rendered less liable to become deranged than other arrangements.
hitherto used.

page_text: The Invention consists,
This
First, in the employment of a shield, plate, or guard, which protects the
ends of the needles, and prevents them from being accidentally bent.
shield consists of a moveable plate, perforated with as many holes as there
are needles in the jacquard; it is placed on the ends of the needles, and
projects slightly in front of them, so that they are entirely hidden when not
actually in action; but when the cylinder comes forward to push in the
needles it presses against this shield, which moves back, and exposes the ends
of the needles, which may be acted upon in the usual manner. The shield
may be returned to its place after the stroke of the cylinder by a spring, or
by a motion from the loom itself.
Second, in the employment of a perforated sliding plate, open frame, or
grating, in place of the ordinary cylinder, for bringing the cards in contact
with the needles, and which may be termed the "needle actuator." This
plate, if perforated, is made to correspond accurately with the shield plate, and
it slides on the same rods that carry the shield. A cylinder, situated above
the "needle actuator," serves to draw up the cards, this being effected in the
usual manner, and as they descend they come in front of the needle actuator,
which pushes them forward. By this means the ends of the needles must of
necessity always correspond with the holes in the "needle actuator," and the
machine will be rendered peculiarly certain in its action.
Third, in a peculiar arrangement of guides or studs for directing the cards
against the ends of the needles. These guides consist of short rods or studs,
which pass through the shield plate and meet the card as it is advancing, and
enter into corresponding holes or eyes in each end of the cards just before the
latter come in contact with the needles. These guide studs are actuated by a
short lever from a rocking shaft, which receives a rocking motion from the
advancing needle actuator, by means of a small pulley attached to the under
side of the needle actuator, such pulley running along an inclined lever on the
rocking shaft.
Fourth, of an arrangement for allowing for any variation in the length of
the cards through changes in the atmosphere. This is effected by simply
causing the guide studs to work in horizontal slots in the shield, in which slots
they may be adjusted in width by a small metal slide, to suit exactly the length
of card.
Fifth, in the employment of metal eyelets fitted into the nipple or peg holes
of the cards, whereby the wearing of the holes is prevented.
Sixth, in a peculiar arrangement of the needles in the jacquard, whereby
nine needles in depth are made to operate upon three reeds.

page_text: Seventh, in the employment of an alarum, which shall either stop the loom
or give notice to the attendant whenever any one of the cards shall not be
exactly in its place on the needle actuator. This alarum may be worked by
attaching a vertical lever to the rocking shaft, herein-before mentioned, such
lever having an eye at its upper end, through which is passed a cord in con-
nection with a bell or other mechanism, suitable for either stopping the loom
or giving an alarm to the weaver. This cord is knotted, and may be passed
through a slotted hole or trap in the lifting board.
When the nipple or peg holes in the card do not happen to coincide with
either one of the guide studs, the studs will be pushed back and the alarum
cord will be trapped, thereby either giving motion to an alarum or stopping
the loom when the lifting board begins to rise.
Many arrangements may, however, be adopted for obtaining the action
required, but such arrangements do not constitute part of this branch of the
Invention, which is, the use of an alarum or the stopping of the loom when a
card is improperly presented to the needles.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Lamb and Thomas Lamb in the Great Seal Patent
Office on the 16th February 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JoпN
LAMB and THOMAS LAMB, both of Kidderminster, in the County of Worcester,
Machinists, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Sixteenth day of August, in the year of our Lord
One thousand eight hundred and fifty-four, in the eighteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said John Lamb and Thomas Lamb, Her special license that we, the said
John Lamb and Thomas Lamb, our executors, administrators, and assigns, or
such others as we, the said John Lamb and Thomas Lamb, our executors,
administrators, or assigns, should at any time agree with, and no others,
from time to time and at all times thereafter during the term therein
expressed, should and lawfully might make, use, exercise, and vend, within the
United Kingdom of Great Britain and Ireland, the Channel Islands, and Isle
of Man, an Invention for "IMPROVEMENTS IN JACQUARD MACHINERY, AND IN

page_text: THE APPARATUS CONNECTED THEREWITH," upon the condition (amongst others)
that we, the said John Lamb and Thomas Lamb, by an instrument in writing
under our hands and seals, or under the hand and seal of one of us, should
particularly describe and ascertain the nature of the said Invention, and in
what manner the same was to be performed, and cause the same to be filed
in the Great Seal Patent Office within six calendar months next and imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that we, the said John Lamb and Thomas Lamb, do
hereby declare the nature of our said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement, reference being had to the accompanying Drawings and to
the letters and figures marked thereon, that is to say:-
Our said Invention relates more especially to certain additions to, and
modifications of, the existing jacquard apparatus, and in the manufacture
of Brussels carpets, although some of the improvements are applicable to
jacquard apparatus used for other purposes. By these improvements a greater
certainty of action is obtained, and the machine is rendered less liable to
become deranged than other arrangements hitherto used.
The improvements consist,―
First, in the employment of a shield, plate, or guard, which protects the
ends of the needles, and prevents them from being accidentally bent. This
shield consists of a moveable plate, perforated with as many holes as there are
needles in the jacquard; it is placed on the ends of the needles, and projects
slightly in front of them, so that they are entirely hidden when not actually
in motion; but when the needle actuator comes forward to push in the
needles, it presses against the shield, which moves back, and exposes the ends
of the needles, which may be acted upon in the usual manner. The shield
may be returned to its place, after the stroke of the needle actuator, by a
spring, or by a motion from the loom itself.
Second, in the employment of a perforated sliding plate, open frame, or
grating, in place of the ordinary cylinder, for bringing the cards in contact
with the needles, and which may be termed the "needle actuator." This plate,
if perforated, is made to correspond accurately with the shield plate, and it
slides on rods passing through the shield. A cylinder or carrier frame, situated
above the "needle actuator," serves to draw up the cards, this being effected
in the usual manner, and as they ascend or descend they come in front of the
needle actuator, which pushes them forward. By this means the ends of
the needles must of necessity always correspond with the holes in the "needle
actuator," and the machine will be rendered peculiarly certain in its action.

page_text: Third, in a peculiar arrangement of guides or studs for directing the cards
against the ends of the needles. These guides consist of short rods or studs,
which pass through the shield plate and meet the card as it is advancing, and
enter into corresponding holes or eyes in each end of the cards just before the
latter come in contact with the needles. These guides or studs are actuated
by a short lever from a rocking shaft, which receives a rocking motion from
the advancing "needle actuator" by means of a small pully attached to the
under side of the needle actuator, such pully running along an inclined lever
on the rocking shaft.
Fourth, of an arrangement for allowing for any variation in the length of
the cards through changes in the atmosphere. This is effected by simply
causing the guide studs to work in horizontal slots in the shield, in which slots
they may be adjusted in width by a small metal slide, to suit exactly the length
of card.
Fifth, in the employment of metal eyelets fitted into the nipple or peg holes
of the cards, whereby the wearing of the holes is prevented.
Sixth, in a peculiar arrangement of the needles in the jacquard, whereby
nine needles in depth are made to operate upon three reeds.
Seventh, in the employment of an alarum which shall either stop the loom
or give notice to the attendant whenever any one of the cards shall not bo
exactly in its place on the "needle actuator." This alarum may be worked
by attaching a vertical lever to the rocking shaft, herein-before mentioned,
such lever having an eye at its upper end, through which is passed a cord in
connection with a bell or other mechanism suitable for either stopping the
loon or giving an alarm to the weaver. This cord is knotted, and may be
passed through a slotted hole or trap in the trap or lifting board. When the
nipple or peg holes in the card do not happen to coincide with either one of
the guide studs, the studs will be pushed back, and the alarm cord will be
trapped, thereby either giving motion to an alarum, or stopping the loom when
the trap board begins to rise. Many arrangements, however, may be adopted
for obtaining the action required, but such arrangements do not constitute part
of this branch of the Invention, which is, the use of an alarum or the stopping
of the loom when a card is improperly presented to the needles.
And in order that our Invention may be more readily understood, we shall
now proceed to describe and refer to the several Figures on the Sheets of
Drawings hereunto annexed.
Fig. 1, on Sheet 1 of our Drawings, represents a front elevation of our
improved jacquard for a five-frame loom; Fig. 2 is a corresponding elevation
of the left-hand side of the jacquard, shewing the actuating mechanism and

page_text: alarum; Fig. 3 is a sectional plan of the jacquard, taken along the line 1, 2,
in Fig. 1; and Fig. 4 represents a transverse vertical section of the same, taken
along the line 3, 4, in Fig. 1.
The several Figs. on Sheet 2 of the Drawings represent various details
of the jacquard mechanism and apparatus connected therewith, which will be
herein-after more fully described and referred to. The corresponding parts in
the several Figs. are marked with corresponding letters in both Sheets of
Drawings.
The whole of the jacquard mechanism is carried by the two cast-iron end
standards A, A¹, which are bolted down on to the framing of the upper portion
of a carpet other loom, and are tied together near their base by the two
transverse tie rods B, B, and at the top by the .metal frame C, to which is
screwed the suspension board D. 'This frame works on swivel centres at
E, E, the ends of which are formed with an eye at F, F, through which pass
the vertical screw spindles G, G. These spindles are for the purpose of raising
or lowering the suspension board, and adjusting it exactly to suit the length
of the knot cords H. An angular adjustment or inclination may also be
given to the suspension board, if required, by turning it slightly on the swivel
centres E, and it may then be fixed at any desired inclination by tightening
the set screws I, I, which are attached to the ends of the frame C, and slide in
the circular slots J, J, in the upper portion of the side standards. The knot
cords Hare attached to the suspension board in the ordinary manner, and pass
down thro' the trap board K, which is represented as elevated in the Drawings.
This board is gradually brought into the inclined position shewn in the
Drawings during its upward movement, in order that the figure yarns which
are brought into action may be raised evenly and form a regular and even shed.
This inclination is effected by the actuating levers L, L, which are jointed
at M to the sliding links N, N, on to the top of which links the trap board
K is secured. The levers L are made fast on to the transverse rocking
shaft O, which works in bearings P, P, in the side standards of the machine.
This shaft is actuated. from a tappet shaft in the loom by means of a con-
necting rod Q, and lever arm R, which is keyed on to the end of the
rocking shaft. The links N, N, which carry the trap board, are connected by
a pin or bolt at S with the upper ends of the vertical slides T, through which
this bolt passes and works loosely. These slides work in the vertical slots U in
the side standards, and are connected with the segment levers V, V, working
loose on fixed stud centres. V, by means of the short links W, W, which are
attached at their upper ends to the pin or bolt S, in the vertical slides T, whilo
their lower ends are jointed to the segment levers by the studs X, which are

page_text: adjustable in the concentric slots Y. A curved link Z is attached at one end
to each of the segment levers, and is connected at the opposite extremities with
the studs a, a, fitted into the ends of the needle actuator b. This needle
actuator, which is substituted for the ordinary jacquard cylinder, is composed
of a cast-iron plate, which is drilled through, to correspond with the needles c
of the jacquard, and is formed with a perfectly flat and even face. This plate
has two long sliding bosses d, d, cast upon it, to enable it to traverse freely
backwards or forwards along the slide spindles e, e'. This traversing inovement,
which is necessary to bring the card f up to the ends of the needles, is obtained,
as will be seen on referring to the Drawing, from the mechanism which actuates
the trap board.
In the several Figs. on Sheet 1 of our Drawings the "needle actuator" is
represented as being pushed out; but the detail, Fig. 1, on Sheet 2 of the
Drawings, represents the position which the actuating lever and links would
assume when the "needle actuator" is drawn inwards towards the needles.
The trap board K, in this position, or at the bottom of its stroke, in place of
being inclined, as is shewn in the several Figures on Sheet 1, assumes a hori-
zontal position, as shown in the detail. The cards f are guided by the fixed
rail 9, and pass over and are actuated by the carrying frames or discs h, h, fast
on the shaft i, which works at each end in the bearings j,j, bolted to the ends
of the "needle actuator" b. The requisite intermittent rotatory motion is given
to the card-carrying frames or discs h, at each back traverse of the "needle
actuator," by means of the catch K, which works loosely on a stud centre L in
the cranked lever m; this lever works on a stud centre m', in the vertical
bracket or arm m", which is bolted on to the end of the guide spindle e. This
arrangement of card-actuating and reversing mechanism will be clearly under-
stood on referring to the detail, Fig. 2, Sheet 2. This detail represents the
position of the mechanism when reversing the cards, the mode of effecting
which will be herein-after described. The catch or pall K is made double-
acting, that is to say, either the upper or lower one of the two arms o, o', may
be brought to bear against the stud pins p in the hexagonal disc q. When the
machine is in ordinary working, the upper arm o will be generally in action.
The disc q fast on the end of the shaft i of the card-carrying frames, and at
cach backward traverse of the "needle actuator," one of the studs p will be
brought in contact with the upper arm o of the catch k, and a partial turn or
a sixth of a revolution in the direction of the arrow will thus be imparted
to the card-carrying frames h. This amount of rotation is regulated and
controlled by the length of the catch k, and by the pressure of the T picce
r, Figure 2, Sheet 1, which is kept pressed up against the under side of

page_text: the disc by a helical spring, thereby holding the frames steady after
each successive movement imparted to them. By bringing the lower arm
o¹ of the catch k into action, as shewn in the detail, Figure 2, Sheet 2,
the motion of the cord-carrying frames will of course be reversed, and this
reverse motion may be obtained by first drawing and holding down the
cords, attached to the tail t of the pall k, which will have the effect of
raising or disengaging the upper arm o, and engaging the lower one o'
When is required to turn back or reverse the cards, the weaver will merely
have to draw down the second cord u, attached to the tail of the spring sneck
or catch v, which works on a stud w in the cranked lever m, and serves to hold
that lever fixed during the regular working of the loom. But when the sneck v
is elevated, as shewn in the detail, the coiled spring a, on the working centre of
the cranked lever m, will turn back that lever, and draw with it the pall k, by
giving a pumping motion to this lever by means of the third cord y, and holding
the sneck cord u in the same hand, so as to keep the sneck disengaged. It
will be obvious that a reverse motion will be given to the card frames, so long
as the lower arm o¹ of the pall k is kept in action, by holding down the cord s
with the other hand during the working of the cranked lever m. When the
proper card is brought back into its place the sneck cord u is released, and the
cranked lever m pulled down into its original position, where it is held secure
by the engagement of the sneck, and the pall kis then allowed to resume its
original position, when the regular onward movement of the cards will
recommence. The upward movement of the cranked lever m, when released,
is controlled by the hooked plate or stop n, which is connected to the working
centre of the pall, and is hooked over the shaft i. A stop pin is fitted into the
pall k, which will como in contact with the under side of the hook n, and so
prevent the lower arm of the pall also from being elevated too far. The detail,
Figure 3, represents a transverse section of the shield or guard plate y', and
"needle actuator" 6, with a card between them in action. They are both
perforated, to receive the ends of the needles, such ends being perfectly con-
cealed in the guard plate when not in action, and consequently are entirely
protected from injury, and run no risk of being bent. This shield is supported
in the end bearings, in the side standards, which allow of a slight forward
traverse being imparted to it by the onward movement of the needle actuator
when pushing back the needles, thereby allowing those needles which cor-
respond to holes in the card to pass through the actuator, as shewn in the
detail, Figure 3. This shield, when pushed back by the needle actuator,
carries with it the slide rods e, e', on to which it is secured for the purpose of
actuating the back board e", which is fitted on to the back ends of the spindles,

page_text: and is brought into its original position again by the helical springs 1, 1.
Through this shield work four guide studs or pins 2, 2, which are made to move
out from the face of the shield, and meet the cards as they are brought forward
on the face of the "needle actuator." These guide pins are adjusted to enter
the nipple or peg holes of the cards, and when they have passed through them
they enter into corresponding holes or slots in the needle actuator, so that tho
cards are not only squeezed up between the shield plate and needle actuator,
but they are always retained and presented in a proper position to the needles
by the guide pins 2, 2. These guide pins and their mode of action will be more
readily understood on referring to the sectional details, Figures 4 and 5,
Sheet 2; they each work perfectly loose and free through small sliding
blocks 3, 3, which are fitted into slots in the shield plate. These blocks
are for the purpose of lateral adjustment, as will be herein-after described.
The back end of each guide pin is nicked or slotted, and fits loosely on to
the upper edge of the cranked arms 4, 4, which are attached at their lower
ends to the transverse rod or bar 5. This rod works in bearings 6, 6, fixed
to each end of the shield plate, and a rocking motion is imparted to it by the
bent or inclined lever arm 7, keyed on to one end of it, which arm slides
over and is actuated by an antifriction pulley 8, carried by a stud on the end
of the needle actuator, as shewn in Figure 2, Sheet 1 of the Drawings. It
will be seen, on referring to this Figure, that when the needle actuator is
pushed back the bent lever arm 7 will be elevated slightly, according to the
amount of inclination or bend given to it, and consequently the guide pins 2,2,
will be drawn back into the shield; but as the actuator advances, the bent
lever 7 gradually falls, by its bent portion sliding over the pulley, and this
descent of the lever allows the cranked arms 4, 4, to move forward and push
out the guide pins 2, the points of which pass through the peg holes of the
cards, and into a corresponding slot in the actuator, as shewn in the details
(Figs. 4 and 5). When the actuator moves back again the lever 7 is ele-
vated, by sliding over the pulley 8, and the cards are released by the con-
sequent withdrawal of the guide pins therefrom. The position of the guide
pins is adjusted laterally, to suit the exact length of card, and allow for any
expansion or contraction in their length, through atmospheric changes, by
means of the small eccentric adjusting pins or cams 9, 9, shewn in detail,
Fig. 6. These adjusting pins may be formed with a milled head, for the
convenience of turning them, and their lower or eccentric portion 9' fits into a
slot in the sliding block which carries the guide pin, while their upper portion
works in a suitable hole drilled vertically in the upper edge of the shield. The
sliding blocks when properly adjusted are fixed in their slots by the set screws

page_text: 10, 10, in order to prevent the nipple or peg holes in the cards from becoming
worn or enlarged. We propose to insert into such holes metal eyes or eyelets 11,
as shewn in the portion of a card represented in half-sized detail at Fig. 7,
Sheet 2 of the Drawings. A bell, or other alarum apparatus 12, is fitted on
to one end of the rod or bar 5, for the purpose of giving notice to the weaver
when any one of the cards has not been properly presented or accurately
adjusted in front of the needles. This is effected by means of the striking
hammer 13, shewn in the detail, Figs. 8 and 9, on Sheet 2 of our Drawings.
This hammer works loosely on a stud centre 14, fixed in the back of one of
the cranked arms 4, which actuate the guide studs or pins herein-before
referred to. A coiled spring 15 serves to keep the head of the hammer
within a short distance from the bell, so that when it is released, after
having been pushed back, it will instantly fly up to the bell and strike the
same, thereby giving notice to the weaver of the incorrect working of the
apparatus.
On the upper end of the hammer shank is fitted loosely a small cranked
catch 16, working on a centre 17; the lower end of this catch is hooked,
and when the striking mechanism is being acted upon, bears against a
stud 18, tixed in the cranked arm 4. A stud 19 is fitted on to the other
end of this catch, and stands out at right angles from it; this stud is acted
upon and pressed laterally when the alarum is to be sounded, by the
descent of the cranked inclined stud 20, which is fixed on to the under side
of the trap board K. The action of this alarum apparatus is as follows:-
Supposing one of the cards is not properly presented in front of the
shield y', the guide pins 2, 2, as a matter of course, will not coincide with
the nipple or peg holes in the cards; and as the card is pushed forward by
the needle actuator b, it follows, that the guido pins, in place of passing
through to the cards, will be pushed back by them, thereby bringing tho
cranked arms 4 into a vertical position, as shewn in the detail (Fig. 3),
and transverse section, Fig. 4, Sheet 1.
This has the effect of bringing
forward the stud pin 19 underneath the cranked inclined stud 20, which
on the descent of the trap board will press against one side of the stud pin
19, and, by the leverage of the hooked end of the catch 16 against the stud
18, will force down the head of the hammer 13, which on being released
again, by the stud 19 slipping over the top of the inclined side 21 of the
stud 20, will instantly rise and strike the bell 12. As the cranked inclined.
stud 20, attached to the trap board, rises again, its upper inclined edge 22
slides along the under side of the stud pin 19, the moveable catch 16 allowing
of the free rising of the cranked inclined stud 20.

page_text: We may here observe that this arrangement for working an alarum is
merely described as an alternative mode, as it differs somewhat froin the knot
cord arrangement herein-before referred to for working an alarum, But
we do not confine ourselves to this precise mode of carrying out this part of
our Invention so long as the main features or principle is retained, namely,
the causing an alarum to be agitated or the loom to be stopped whenever a
card is not correctly presented to the needles or card guides.
It will be obvious to the practical man, that in place of employing an
alarum to be actuated by the striking mechanism, the same mechanism may
be made to release a stopping handle at the required time, and so stop the
loom by any of the well-known existing arrangements at present in use. Tho
peculiar arrangement which we adopt for working three reeds from nine
needles in depth is illustrated by the diagrams, Figs. 10 and 11, on Sheet 2
of the Drawings. Figure 10 is a side elevation of nine needles, shewing the
position of the knot cords therein, the needle eyes being arranged for six
frames in place of five frames, as shewn in the Figures on Sheet 1 of our
Drawings; and Fig. 11 is a corresponding plan of the same.
Wo have only
shewn one set of needles in these views, as all the other sets in a jacquard of
this arrangement will bo precisely similar.
In order to avoid too much unnecessary complication, we have only shown
one set of six knot cords, namely, those in connection with the top three
needles, as the working and combinations of the rest of the needles is pre-
cisely similar. Each set of these needles works a dent in the slay. The
numbers on the knot cords correspond to the frames with which they are in
connection, and the numbers on the right-hand side of the needles are placed
opposite to those needles which are to be punched for, in throwing up the
frame corresponding to such numbers so placed. The numbers 1, 2, 3, on
the left-hand side of the needles, are merely for the purpose of reference
in describing the actions of the needles. The right-hand set of knot cords
1, 2, 3, it will be observed, are always trapped when at rest, and the left-
hand ones 4, 5, and 6, are held untrapped by the needle eyes. Each knot
cord passes through two long eyes in the needles, and these eyes are made
on alternate sides of the needles, as shewn in Fig. 11. As the needles now
stand, the cords 1, 2, and 3 will be elevated on raising the trap board; but
in order to elevate the first frame, or cord 1, the needles 1 and 3 are punched
for, as shown by the right-hand numbers 1, 1.
It will thus be obvious that the cord 1 will remain in trap; the cords
2 and 3 will be untrapped by the needle 2; the cord 4 will be held untrapped
by the needle 1; the cord 5 will be held untrapped by the needles 1 and 3;

page_text: and the last cord 6 will also be held untrapped by the needle 3. Thus, all the
cords will be untrapped except the cord 1 of the first frame, which is to be
elevated. To raise the second frame, the needles 2 and 3 are punched for, as
shewn; thus the cord 1 is untrapped by needle 1; cord 2 remains trapped
as the eyes through which it is passed remain stationary; cord 3 is untrapped
by needle 1; cord 4 is retained untrapped by needle 2; cord 5 is retained
untrapped by needle 3; and cord .6 is retained untrapped by needles 2 and 8,
which have been punched for. To actuate the third frame, punch for the
needles 1 and 2; for the fourth frame, punch for needle 3; for the fifth frame,
punch for needle 2; and for the 6th frame, punch for needle 1.
Having now described and particularly ascertained the nature of our said
Invention, and the manner in which the same is or may be used or carried
into effect, we would observe, in conclusion, that we do not confine or restrict
ourselves to the precise details or arrangements which we have had occasion to
describe or refer to, as many variations may be made therefrom without
deviating from the principles or main features of our said Invention; but what
we consider to be novel and original, and therefore claim as the Invention
secured to us by the herein-before in part recited Letters Patent, is,―
First, the application and use of a shield, plate, or guard, for the purpose of
protecting the ends of the needles in jacquard machines.
Second, the application and use of a perforated shiding plate, open frame, or
grating, as a substitute for the ordinary cylinder in jacquard machines, as
herein-before described.
Third, the application and use of the guide studs or pins herein-before
described, for the purpose of guiding or directing the cards in front of the
needle actuator.
Fourth, the peculiar construction, arrangement, and mode of working the
guide studs or pins, as herein-before described.
Fifth, the system or mode of adjusting the guido studs or pins laterally, to
suit any variation in the length of the cards, as herein-before described.
Sixth, the application and use of metal eyelets fitted into the nipple or
peg holes of the cards, for the purpose of preventing undue wear at those
parts.
Seventh, the peculiar arrangement of needles herein-before described,
whereby nine needles in depth are made to operate upon three reeds in a five
or six frame Brussels loom.
Eighth, the application and use of an arrangement of mechanism attached to
jacquard machines, which shall either sound an alarum or stop the loom when
any one of the cards shall be improperly presented to the needles.

page_text: Ninth, the peculiar construction, arrangement, and modo of working
the mechanism for sounding an alarum or stopping the loom when a card is
improperly presented to the needles, as herein-before described.
In witness whereof, I, the said John Lamb, on behalf of myself and of
the said Thomas Lamb, have hereunto set my hand and seal, the
Thirteenth day of February, One thousand eight hundred and fifty-five.
JOHN LAMB. (L.S.)