Improvements in Looms for Weaving Lappet Goods.
Year: 1895

page_text: Date of Application, 27th Dec., 1895
Complete Specification Left, 28th Sept., 1896-Accepted, 21st Nov., 1895
PROVISIONAL SPECIFICATION.
Improvements in Looms for Weaving Lappet Goods.
We, RICHARD LONGDEN HATTERSLEY, of North Brook-Works, Keighley, in
the County of York, Machine Maker, and SIMEON JACKSON, of the same address;
Manager, do hereby declare the nature of this invention to be as follows:-
It relates to looms for weaving lappet goods, and consists of an improved
arrangement of the lappet mechanism, whereby such mechanism is made more
effective than the lappet mechanism as now constructed and arranged.
Our invention consists essentially in the employment of an intermittently
revolved cylinder carrying lags and pegs operating upon a number or series of
indicating levers, for the purpose of regulating the amount of travel or cross-
motion of one or more needle bars, to which the requisite number of needles are
fixed carrying the threads to form the lappet.
It being necessary to keep the lappet threads at an uniform tension, we employ
in connection with each needle bar a whip, or oscillating rail, very sensitive in
action.
The said needle bar or bars move vertically with carriers fixed to the lay, so
arranged that, although the movement of such bar or bars sideways, or across the
loom, is varied according to the movement of the said indicating levers, as here-
after explained, the downward movement is always regular and of the same extent,
unless the pattern surface of the cylinder controlling the indicating levers indicates
for.no movement of the needle bars, in which case the carriers move, but not the
bars, these latter being provided with catch pieces at each end, whereby each time
the lay is moved into its forward position the said catch pieces take hold, or rest
on holding-up pieces also carried by the lay.
Hitherto the usual method has been to work the needles from the underside of
the shed, but in this arrangement they are mounted at the upper side. The faise
reed, or, as it is sometimes termed, the standard needles, is arranged to work from
the underside, and is operated by suitable cam and levers to rise and fall at the
requisite periods. The same mechanism of cam and levers which actuates the false
reed or standard needles is also connected to the carriers of the needle bars, so
that, as the false reed rises when the lay moves backwards, the carriers of the
needle bars fall or move downwards.
Each needle bar is connected by suitable rods and levers to one end of a
regulating lever, fulcrumed to the loom frame, the other end of which is operated
upon by a series of indicating levers, which are moved preferably by a rising and
falling cylinder carrying lags and pegs. Each of these indicating levers will give
a different length of traverse.or cross-movement. to the needle bar to which it is
connected. Thus, there may be ten indicating levers to each needle bar, in which
case. ten different lengths of traverse can be given to the needle bar, the regulating
lever before-named taking a different leverage from. each of the indicating levers.
This is effected by placing its operated end at an angle across the indicating
levers, so that it meets the first lever of the series nearer to its fulcrum than the
next, and so on; thus each indicating lever gives a different amount of lift to the
regulating lever, and the side.or. cross movement of the needle :bar. is. varied
accordingly... The cylinder. indicates for a movement immediately the lay is in its
forward position, but if..there is a total. blank in the pattern. surface of the
cylinder, and consequently no movement of any of the. indicating levers, the needle

page_text: bar will remain stationary, being held up by the holding-up pieces, as before
explained.
Dated this 24th day of December 1895.
J. SIDNEY CRITCHLEY,
27 Kirkgate, Bradford, Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Looms for Weaving Lappet Goods.
We, RICHARD LONGDEN HATTERSLEY, of North Brook Works, Keighley, in
the County of York, Machine Maker, and SIMEON JACKSON, of the same address,
Manager, 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 :-
It relates to looms for weaving lappet goods, and consists of an improved
arrangement of the lappet mechanism, whereby such mechanism is made more
effective than the lappet mechanism as now constructed and arranged.
Our invention consists essentially in the employment of an intermittently
revolved cylinder, carrying lags and pege, operating upon a number or series of
indicating levers, for the purpose of regulating the amount of travel or cross-
motion of one or more needle bars, to which the requisite number of needles are
fixed, carrying the threads to form the lappet.
It being necessary to keep the lappet threads at an even tension, we employ in
connection with each needle bar, a whip, or oscillating rail, very_sensitive in
action.
The said needle bar or bars move vertically, with carriers fixed to the lay, so
arranged that, although the movement of such bar or bars sideways, or across the
loom, is varied according to the movement of the said indicating levers, as hereafter
explained, the downward movement is always regular, and of the same extent,
unless the pattern surface of the cylinder controlling the indicating levers indicates
for no movement of the needle bars, in which case the carriers move, but not the
bars, these latter being provided with catch pieces at each end, whereby each time
the lay is moved into its forward position the said catch pieces take hold or rest on
holding-up pieces, also carried by the lay.
Hitherto the usual method has been to work the needles from the underside of
the shed, but in this arrangement they are mounted at the upper side.
The false-
reed, or, as it is sometimes termed, the standard needles, is arranged to work from
the underside, and is operated by suitable cam aud levers to rise and fall at the
requisite periods. The same mechanism of cam and levers which actuates the
false-reed, or standard needles, is also connected to the carriers of the needle
bars, so that, as the false-reed rises when the lay moves backwards, the carriers of
the needle bars fall or move downwards.
Each needle bar is connected by suitable rods and levers to one end of a
regulating lever, fulcrumed to the loom frame, the other end of which is operated
upon by a series of indicating levers which are moved preferably by a rising and
falling cylinder carrying lags and pegs. Each of these indicating levers will give
a different length of traverse or cross-movement to the needle bar to which it is
connected. Thus there may be ten indicating levers to each needle bar, in which
case ten different lengths of traverse can be given to the needle bar, the regulating
lever before named taking a different leverage from each of the indicating levers.
This is effected by placing its operated end at an angle across the indicating levers,
so that it meets the first lever of the series nearer to its fulcrum than the next and
so on; thus each indicating lever gives a different amount of lift to the regulating
lever, and the side or cross-movement of the needle bar is varied accordingly.

page_text: The cylinder indicates for a movement immediately the lay is in its forward
position, but if there is a total blank in the pattern surface of the cylinder, and
consequently no movement of any of the indicating levers, the needle bar will
remain stationary being held up by the holding-up pieces, as before explained.
In order to more fully explain our invention, we append hereto two sheets of
drawings marked with letters of reference, in which like letters denote like parts.
Fig. 1 shows an elevation, Fig. 2 front view, and Fig. 3 a plan view of our
invention.
A, the revolving cylinder, carries the lags and pegs A 1, which operate and give
motion to the series of levers B & B 1, as desired. The said cylinder A is rigidly
mounted on the support A 2, and is operated vertically by the tappet A 3, working
in connection with the low shaft A4 of the loom. To the cylinder A is attached
catch-wheel A 5, which, when it is making its downward motion meets the
catch A 6, and thus turns the cylinder part of a revolution, and another series of
pegs A 1 is then presented to the levers B & B I. The said catch is rigidly fixed
to any convenient part of the loom. This manner of operating the cylinder is well
understood.
The indicating levers are shown, in the drawing, working in 2 setts B & B 1,
but they may be arranged to work in 3, 4, or more with any number of levers to
each sett, as may be required. We will describe the manner of working for one
sett as the method is the same, whether 1, 2, 3, 4 or more setts are employed.
The lever C has two arms C1 & C2 and the arm C 1 is designed at an angle,
as shown in Fig. 3, so that it can be operated by any lever of the series B. It
will be seen that the points of connection between the series of levers B and the
lever Care situated at varied distances from the fulcrum B 2, in each case, and
each lever thereby gives a different lift to the lever C.
The arm C2 is connected by the rod D, to the lever E and the latter gives
motion, by means of rod F, to the elbow-lever G. The needles H, through which
the lappet threads are drawn, are inserted in the bar I and the latter is connected
to the before-mentioned elbow-lever G by the rod J as shown in Fig. 2 of the
drawing. By this arrangement it will be seen that a lateral or sideways movement
is imparted to the needles H by the indicating lags and pegs A 1, also that the said
movement can be regulated as desired.
As already mentioned the bar I is moved vertically, in the guides 2 formed in
the stand R, in order to bring the eyes of the needles H, through which the lappet
threads are drawn, level with the slayboard at the time the latter is about the back
centre of its motion and the shuttle is passing across the loom.
Our method of obtaining this vertical motion is as follows:-On the lowshaft A 4
of the loom we mount the tappet K, which is in contact with one arm L1 of the
lever L, and to the other arm L 2 we connect, by the rod M, the lever N. To
the levers N & NI secured on the shaft O, we suspend the fingers P & P 1 and
on the latter rests the bar I. The fingers P & Pi may be designed for 1, 2 or
more bars.
When there is no indication for the cross-movement from the cylinder A to the
bar I the fingers P & P 1 descend as usual, but the bar I remains at the top, in
its pormal position, that is, with the catch-pieces S & $1 resting on the
stands R & R 1.
We make use of what is known as the false-reed, that is a reed for the guidance
of the shuttle in addition to the ordinary reed for the beat-up of the weft. The
false-reed consists of a number of needles U fixed on the shaft U1 and moving in
the guides U2 & U 3. The shaft U1 is mounted loosely in the fingers U 4
& U 5 and these are connected to the shaft U 6. On the shaft U6 is also fixed
the finger U7 which is connected by the rod U8 to the before mentioned
lever L.
It will be seen that when the shuttle is being picked across the loom, the false-
reed, consisting of needles U, is raised and lappet needles H lowered to their
respective position.

page_text: For the let-off motion of the lappet threads, we employ 2 shafts V 1 & V 2 and on
these we mount rigidly 2 levers V 3 & V 4 at each end of the loom, in these levers
are fixed 2 small rollers V 5 & V 6, to the other ends of levers we attach the spiral
springs V7 & V8 which bring the -levers V 3 & V 4 against the stop-pins V 9
& V 10. The lappet threads pass from the beams V 12 & V 11 under the rollers V 5
& V 6 to the needles H. By this system the let-off can be rendered very sensitive
and the lappet threads kept at an even tension..
It will be seen from the drawings, That the levers G and stands R traverse.
with the swords W 1 & W 2 and lay W 3, as they are secured: to the former. by
bolts, see Fig. 1.
That the rod B 2 acting as fulcrum for the levers B & B 1 is rigidly mounted on
the loom frame X, Fig. 1 & 3, as also the stand X 2 carrying the lever C, Fig. 3.
Also that the stand V 13 carrying the let-off motion is secured to the ordinary
back rail X 3 of the loom, Fig. 1.
That the stand X4 to which are attached the spiral springs E 1, adapted to
keep uniform the motion of the bars I, are mounted on the loom frame X.
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. The arrangement of levers for regulating the traverse of the bar or bars I.
2. The combination of the false-reed and the fingers P & P 1, for lowering the
bar or bars I, working together as shown.
3. The catch pieces S & S 1 and the manner of holding up the bar, or bars I,
when no indication for cross-motion is made..
4. The manner of regulating the tension on the lappet threads as shown and
described.
Dated this 26th day of September 1896.
RICHD. L. HATTERSLEY,
SIMEON JACKSON,
Applicants.