Improvements in Narrow-ware Looms for Weaving.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in Narrow-ware Looms for Weaving.
I, WILLIAM EDMUND SIMPSON of Albert Works Mansfield in the County of
Nottingham, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to narrow-ware looms and comprises improvements
whereby greater efficiency may be obtained in such looms than is possible in those
of ordinary construction."
In narrow-ware looms as at present constructed a number of shuttles are
arranged to slide in a raceway in or upon the lay or batten, gaps being formed in
the said raceway through which the warp threads forming the shed pass, and the
shuttles are passed through their sheds by means of a "peg motion," a "rack and
pinion motion, or other picking device. In such looms the shedding, picking,
beat-up, and take-up motions, respectively, of all the sheds or all the pieces of
fabric in a loom are effected simultaneously by means of a single set of shedding,
picking, beat-up, and take-up mechanisms in such manner that when it is desired
to renew the quill, cop, or bobbin, in a single shuttle, it is necessary to stop the
whole of the loom, the out-put of which is thereby considerably reduced.
According to the present invention a loom may be so constructed that, although
the shedding, picking, beat-up, and take-up motions, respectively, of all the sheds
or all the pieces of fabric in the loom, are effected by means of one set of cams,
cranks, or other mechanisms, the motions of any single shed may be stopped for
any purpose while the rest of the loom continues working.
In one method of carrying this into effect there are provided upon the frame of
the loom a number of shuttle carriers having gaps or spaces between them for the
passage of the warp threads. Each shuttle carrier has two raceways for the
shuttle, one above the other, and is capable of being moved vertically up and down
so as to bring either of the said raceways opposite the shed. Each shuttle carrier
is normally held in the lower position by means of a spring catch or trigger, while
a spring trip tends to force it upwards. The said spring trip consists of a
horizontal trip-lever capable of oscillating upon a central pivot and a spring piston
or plunger adapted to press downwards one or the other of the two arms of the
trip-lever, according as the end of the piston or plunger is pushed to one side or
the other of the fulcrum or pivot. One end of the trip lever is connected to the
shuttle carrier and the other to a vertical or "starting" rod.
The shuttles are passed simultaneously from one carrier to the other through
the shed by means of an ordinary "rack and pinion" picking motion, so that each
shuttle carrier is alternately occupied by the shuttle of one or the other of the two
adjoining sheds. The rack for working the shuttles is reciprocated by means of a
cam or cams upon the loom, and the aforesaid catch or trigger is so arranged as to be
thrown in gear with the rack or with a projection on the rack, (and be operated
thereby) by means of the aforesaid spring trip, and also by means of a hand lever
or "stop-rod." The catch or trigger of each shuttle carrier is also capable of
being operated by meaus of a weft stop-bolt upon the shuttle, which is thrown out
by a spring on the weft breaking or being exhausted, so as to come in contact with
the said trigger and release the carrier.

page_text: The shedding, beat-up, and take-up motions are operated from an oscillating
shaft extending along the loom. The said shaft is rocked to and fro upon its axis
by means of a cam or cams upon the loom and is provided with an arm for each
shed of the loom to which arm the healds, the reed, and the take-up motion, are
all connected in such manner as to receive the required movements. Each arm
upon the oscillating shaft is connected to the said shaft by means of a clutch or
other device operated by the aforesaid carrier so as to be in or out of gear with
the shaft according to the position of the carrier.
The action of the loom is as follows:-
The loom being in normal working each shuttle carrier is held in its lower
position by means of the trigger, the shuttles then working in the upper race-way
of the same; if, however, the weft thread breaks or the weft bobbin or cop
becomes exhausted the weft stop-bolt comes in contact with the trigger, at the end
of the shuttle's stroke, and releases the carrier, which is forced to the upper
position by the spring trip, carrying with it in the upper raceway the "dead" shuttle,
which is thus lifted out of gear with the pinions of the picking motion. This
movement of the carrier throws out of gear also the clutch upon the oscillating
shaft, thus stopping the shedding, beat-up, and take-up motions of the particular
shed to which the "dead" shuttle belongs. The carrier is locked in the upper
position by the spring trigger and the other, or "live" shuttle, belonging to the
adjoining shed (which works alternately in the same carrier) continues working in
the lower raceway of the carrier.
In a similar manner when it is desired to stop the working of a single shed the
trigger may be released at the end of the shuttle's stroke by means of the rack
when thrown in gear with it by the hand-lever or "stop-rod."
When it is desired to start the "dead" shuttle the vertical or "starting" rod is
pressed downwards, moving over the spring trip so that it tends to press the
shuttle carrier downwards; at the same time the spring trip throws the rack in
gear with the trigger (which is still retaining the carrier in the upper position)
and when the rack reaches the position corresponding to the end of the shuttle's
stroke it operates the trigger and releases the carrier which is then moved by the
spring trip to the lower position so that the "dead" shuttle is again dropped in
gear with the rack and the shedding, beat-up, and take-up motions are at the same
time started again so that the normal working of the shed is resumed, the shuttle
carrier being again locked in the lower position by the trigger and the spring trip
moved over by a projection on the rack to the position in which it tends to press
the carrier upwards.
Dated this 14th day of May 1896
WILLIAM EDMUND SIMPSON,
Applicant.
Improvements in Narrow-ware Looms for Weaving.
I, WILLIAM EDMUND SIMPSON, of Albert Works, Mansfield, in the County of
Nottingham, Engineer, 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 relates to narrow-ware looms and comprises improvements
whereby such looms will possess greater efficiency than is possible with those of
ordinary construction.
In narrow-ware looms as at present constructed numerous shuttles are arranged

page_text: to reciprocate in a raceway in or upon the lay or batten, gaps or spaces being
formed in the said raceway, through which pass the warp threads forming the
shed, the various shuttles being caused to traverse or pass through their respective
sheds by means of a "peg-motion," a "rack and pinion motion," or other picking
motion. In such looms the shedding, picking, beat-un, and take-up motions,
respectively, of all the sheds in a loom are effected simultaneously by means of a
single set of shedding, picking, beat-up, and take-up mechanisms, in such manner
that when it is desired to renew the quill, cop, or bobbin, in any particular shuttle,
it is necessary to stop the working of the entire loom; loss of time therefore
results and the total output of the loom is consequently considerably reduce?.
According to the present invention, the loom can be so constructed that,
although the shedding, picking, beat-up, and take-up mechanisms, respectively, of
all the sheds in the loom, are effected by means of one set of cams, cranks, or other
mechanisms, the motions or mechanisms of any particular shed may he stopped
when desired while the other parts of the loom continue working; that is to say
the production of the fabric by the loom is delayed only at the particular shed
which has been stopped.
The accompanying drawings illustrate one method of carrying the said invention
into effect:
Figure 1 is a front view and Figure 2 an end view of the loom.
Figure 3 is a front view, Figure 4 a back view; Figure 5 a cross section ;.
and Figure 6 a sectional plan of a portion of the said loom drawn on a larger scale.
A is the frame of the loom, B B are the various shuttle carriers, and C C the
gaps or spaces between them for the passage of the warp threads D. Each shuttle
carrier B has two raceways E, E¹ (Figure 5) arranged one above the other for the
shuttle to work in, and is capable of being moved vertically up and down so as
to bring either of the said raceways opposite the shed formed by the separation of
the warp threads D as is well understood. Each shuttle carrier B is normally held
in the lower position, as shewn in Figures 3, 4 and 5, by means of a spring catch
or trigger G and a bolt G' the latter entering a notch G2 in the said carrier, while
a device I term a "spring trip" tends to force the carrier upward. The said
spring trip consists of a trip-lever H' capable of oscillating on a pivot H2 and a
spring piston or plunger H3 adapted to press downward one or the other of the two
arms HH of the said trip-lever, according as the end of the piston or plunger H³
is pushed to one side or the other of the fulcrum or pivot H2. One end H of the
trip-lever His connected to the shuttle carrier B by a link H, and an arm H' of
the plunger H3 is connected to a vertical "starting" rod J.
The shuttles F are simultaneously shifted laterally to and fro from one carrier
to the other through the shed, by means of an ordinary "rack and pinion" picking
motion as shewn (K being the rack, and L the pinions engaging with the teeth F¹
on the shuttle) so that each shuttle carrier is alternately occupied by the shuttle
of one or the ther of the two adjoining sheds. The rack K for working the
shuttle is reciprocated by means of a cam M, (Figure 1), through levers M¹ M¹
and a rod M2, and the aforesaid catch or triggers G is so arranged as to be thrown
into gear with a projection K on the rack K (and to be operated thereby,) by
means of the aforesaid plunger H3 of the spring trip H and also by means of a
"stop-rod" N.
The trigger G is operated in the first case by a striking piece H, pivoted to the
rod J, which rod and striking piece are lifted by the movement of the arm H' of
the plunger H³, so that the said piece He will come in contact with the trigger G
when it is struck by the projection K' on the rack.
The trigger G can also be operated by pressing down the aforesaid stop-rod N,
whereby a striking piece N¹ is lowered so as to transmit movement from the
projection K' of the rack to the trigger G.
The catch or trigger G and bolt G¹ of each shuttle carrier are also capable of
being operated by means of a weft stop-bolt P upon the shuttle, which is thrown
outwardly by a spring P¹ in the event of the weft breaking or being exhausted, so

page_text: as to operate the said trigger G through the intervention of a sliding piece F and
thus release the carrier B.
The healds Q, the reed R, and the take-up mechanism, are operated from an
oscillating shaft S extending across the loom. The said shaft S is rocked or
oscillated upon its axis by means of a cam S' on the shaft Sx and a lever S³
carried by the framing of the loom (Fig. 2) and is provided with an arm S³ for
each shed of the loom, the healds Q. the reed R, and any ordinary take-up
mechanism being all connected to said arm in such a manner as to receive the
required movements. Thus in Figure 5, the healds Q are connected by cords or
straps Q', which run over pulleys Q2, to a sliding plate Q3, which is connected by
a link Q to the said arm S³. The said sliding plate is provided with a cam-like
slot R with which engages a roller R2 on a sliding rod R3, the said rod being
coupled by a link R4 to, a lever R connected with the reed R. This lever R' is
connected to the batten by a link R, and the reed is guided by pins R' working in
grooves R. The said lever R is also connected by a link R with any ordinary
take-up motion.
Each arm S3 on the oscillating shaft S is connected to the said shaft by means.
of a clutch S' operated by the arm H8 of the aforesaid trip lever H', so as to
be in or out of gear with the shaft S according to the position of the carrier B.
The action of the loom is as follows:-When the loom is working normally
each shuttle carrier B is held in its lower position, as in Figures 3, 4, and 5, by
the trigger G, and bolt G¹, the shuttles then working in the upper raceway E¹;
if, however, the weft thread breaks or the weft bobbin or cop F3 becomes
exhausted of thread the weft stop-bolt P comes in contact with the siiding piece F2
and pushes the bolt G of the trigger G out of engagement, at the end of the
shuttle stroke, and so releases the carrier B which is forced to the upper position
by the spring trip, carrying with it in the upper raceway the "dead" shuttle.
The latter is thus lifted out of gear with the pinions of the picking mechanism
as shewn by dotted lines in Figures 3 and 5. This movement of the carrier B
throws out of gear also the clutch S' upon the oscillating shaft S, thus stopping
the shedding, beat-up, and take-up motions of the particular shed to which the
aforesaid "dead" shuttle belongs. The carrier is locked in the upper position
by the spring trigger, and the other or "live" shuttle, which belongs to the
adjoining shed and which works alternately in the same carrier, continues working
in the lower raceway E of the carrier B.
In a similar manner when it is desired to stop the working of a particular shed
the trigger G and bolt G may be released at the end of a shuttle stroke by
means of the rack K when the projection K' thereon is thrown in gear with the
said trigger by the stop-rod N as already explained.
"
When it is desired to start the aforesaid "dead" shuttle the vertical "starting
rod J connected to the arm H' of the plunger H³, is pulled upward thus oscillating
the said plunger upon the spring trip H, so that it tends to press the shuttle
carrier downward. The said arm H7 at the same time throws the projection Kf
the rack, in gear with the trigger G (which at this time still retains the carrier B
in the upper position) and when the rack reaches the position corresponding
to the end of the shuttle stroke it operates the trigger and releases the said
carrier. This carrier is then moved by the spring trip to the lower position, so
that the "dead" shuttle is again allowed to fall into gear with the rack. The
shedding, beat-up, and take-up mechanisms are at the same time again actuated,
and the normal working of the shed is resumed, the shuttle carrier B being again
locked in the lower position by the trigger G, and the plunger H3 of the spring
trip shilted, by the rod J, into the position in which it tends to press the carrier
upward, as shewn in Figure 4.
It will be readily understood that the trigger G may also be operated by any
ordinary form of warp stop-motion, so as to release the carrier oir the breaking
of a waru thread.

page_text: Thus the shuttle and other mechanism of a particular shed may be stopped
and started independently, being timed by the movement of the rack so as to
be thrown in or out of gear only at the end of a shuttle stroke, whereby damage
to the loom is obviated.
It will be obvious that the said improvements or any of them may be adapted
and applied to existing narrow-ware looms, without departing from the essential
features of the invention.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A narrow-ware loom in which the various picking, shedding, beat-up, and
take-up motions or mechanism are actuated by one set of cams, cranks, or other
devices in such manner that the motions or mechanism of any particular shed can
be independently stopped or started while the other parts of the loom continue
working, substantially as described.
2. A narrow-ware loom, in which the various shuttles are actuated by a single
cam, crank, or other device, in such manner that any particular shuttle may be
independently stopped and started while the other shuttles continue working
substantially as described.
3. In a loom of the kind claimed in the preceding claims, timing the stopping
and starting of a shed by a continuously moving part of the loom, so that such
stopping or starting occurs only at the end of the shuttle's stroke, substantially as
described.
4. In a loom of the kind herein before described the combination with a vertical
slide or shuttle carrier, of the spring trip, the trigger, and a projection on the
rack or other continuously moving part of the loom for the purpose specified.
5. In a narrow-ware loom, the combination with a slide or shuttle-carrier
having two shuttle races, and capable of moving up and down so as to bring
either of said shuttle races opposite the shed, of means for locking the said slide
or carrier in either position substantially as described.
6. The combination, with the aforesaid movable slide or shuttle carrier and
the means for locking the same, of the spring trip substantially as described and
for the purpose specified.
7. The combination with the movable slide or shuttle carrier, the locking
device, and the spring trip, of means substantially as described for releasing said
slide on the breaking of the weft or warp threads for the purpose specified.
8. The combination with the device claimed in the last preceding claim, of a
hand operated stop-rod, and means substantially as described for throwing the
mechanism of the shed out of operation.
9. The combination with the device claimed in Claims 7 and 8, of a hand
operated starting rod, and means substantially as described for setting the spring
trip and releasing the slide or shuttle carrier so as to start the mechanism of
the shed.
10. In a narrow-ware loom, an oscillating shaft or shafts for transmitting the
motions of a cam or cams to the various sheds or mechanisms, substantially as
described.
11. A narrow-ware loom constructed substantially as described with reference
to the accompanying drawings and for the purposes specified.
Dad thin 15th da..
Manah 1007
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.