provements in Machines for the Manufacture of Pile Fabrics.
Year: 1898

page_text: PROVISIONAL SPECIFICATION
Improvements in Machines for the Manufacture of Pile Fabrics.
We, HERBERT ANDERTON FOSTER, Manufacturer, and RALPH LEE, Forema
Finisher, both ot Black Dike Mills, Queensbury, in the County of Yok, do hereby
declare the nature of this invention to be us follows
—
This invention relates to improvements in machines for manufacturing cut pile
fabrics of manufacture such as are described in Specification of Letters Patent
No 5158 of the year 1896 granted to the present applicants and the object of
this invention is to provide improved means for holding the ioop regulating its
length and cutting the loop so as to form a pile fabric
According to this invention we employ horizontal needles for piercing the back-
ing or foundation and carrying therethrough the pile threads as ordinary When
the pile threads are carried through the backing in the form of loops each loop
is received on and taken by latch needles or hooks in a vertical needle bai and
drawn downwards to and left on holding or knife needles which are combined
with the improved cutting device. The holding or knife needles have small
hooks or notches on their underside, and through a slot m cach holding or knife
needle there works a reciprocating or endless band knife which may be seriated
and which when the loops are drawn along the holding or knife needles as the
manufacture proceeds and the piece is taken up until the loops are necessanly
brought into contact with and cut by the knife.
The latch needles or hooks are provided with latches such as are described m
the Specification of Letters Patent No 5158 of 1896 aforesaid, but the latches as
elongated so as to protrude beyond the hooks, or are not quite closed so that as
the hooks pass between the looping needles and the pile threads, the latter them-
selves open or fold back the latches and find their way into the hooks
The length of the pile is regulated by adjusting the latched or hooked needle
bar which is carried on levers or arms at each end, and such levers are mounted
on fulcrum studs and then opposite ends are controlled by tappets The fulcrum
studs are carried in slides and by varying the position of the studs in the slides
the length of loop and pile is regulated. Kevs and screws are provided, by means
of which the position of the fulcrum studs can be adjusted readily
In order to automatically supply a sufficient length of pile theads to form
the loop and at the same time to maintain tension at the required time, we employ
an intermittent letting of motion applied to nipping rollers above the beam
containing the pile threads. The mapping rollers hold the threads and are turned
so as to let off a predetermined length of thread by being connected by gear
wheels with a ratchet wheel and catch or pawl, the latter being controlled and
operated by a tappet on the tappet shaft of the machine

page_text: imрrоvещениш мислев гог ще машитастите Ur
We, HERBEUT ANDERTON FOSTER, Manufacturer, and RALPH LEE, Foreman
Finisher, both or Black Dike Mills, Queensbury, in the County of York, 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 improvements in machines for manufacturing cut pile
fabrics such as are described in Specification of Letters Patent No 5108 of the
year 1896 granted to the present applicants, and the object of this invention 18
to provide improved means tor making and holding the loop regulating its length,
and cutting the loop so as to form a pile fabric.
Such being the nature and object of our said invention the following is a
complete description of same, reference being had to the annexed drawings, in
which..
Fig 1, Sheet 1 is a side elevation of the machine according to this invention.
Fig 1, is a like view with parts omitted.
Fig 2, 18 a side elevation of the mechanism for operating and adjusting the
vertical latch needles or hooks.
Fig. 2 18 a detail of the levers and mechanism for giving a tilting movement
to the needle bars.
Fig 31a a detached view of one of the sliding bars for carrying the horizontal
needles and its operating cams
Fig. 4 is a detail of the latch needle bar slide and alotted lever hereinafter
referied to
Fig. 5 18 a detail and detached view of the knife needle bar
Fig 6 is a detail of cam slot for moving the needle bar endwise
Fig 18 a front elevation of the apparatus for operating the reciprocating
knife
Figs 8, 9, 10, 11, 12, 13 and 14, shew the various positions of the needles in
forming the loops
According to this invention we employ honzontal needles 1 for piercing the
backing or foundation 2 and carrying therethough the pile threads The needles
are actuated by means of the sliding bar 3 working in the slides 4, 4 and actuated
by tappets 5 and 6 on the cross shaft 6°, one of the said bars 3 being at each side
of the machine and connected by cross bai 7 with the needles 1 (see detail Fig 3)
When the pile threads are carried through the backing 2 in the form of loops
each loop is received on and taken by upright latch needles or hooks 8 in a needle
bar and diawn downwards by means of a slotted lever 10 (see Fig. 2) working
in a slide 11 on each side of the fiame of the machine, the other end of the
lever 10 being carried on a cross shaft 12 Below the said lever 10 is another
slotted lever 13 one end of which is carried on the shaft 14, and a bowl or
lunnel 15 on such lever 13 is kept in contact with a tappet 16 on the tappet
shaft 17 by means of a weight 18 oi spring, the two levers 10 and 13 are connected
together by an adjustable link 19 and by moving aame along the slots 20, 21 in
the said levers the latched needle bar 9 can be adjusted so as to move through a
greater or less are as required, drawing off from the supply more or less thread
and thereby regulating and detirmining the length of pile loop.
The needle bar 9 18 free to swivel on the pin 46 (see Fig 4) and is connecte]
to an aim 20 by means of a short link 23* The arm 20 has a rocking motion
imparted to it by means of the adjustable link 21* and pivoted lever 22" which
are operated from the cam 24' on the shaft 17 by means of the spring 30°. The

page_text: arm 20° moving to and fro causes the needle bar 9 to turn or tilt slightly on
the pin 46 so as to enable the latch needles 8 to take hold of the pile thread 3*.
The latch needles or hooks 8 are provided with latches 8" but the latches 8* are
elongated so as to protrude beyond the hooks 8 so that as the hooks 8 pass
between the horizontal needles 1 and the pile threads, the latter themselves open
or fold back the latches 8 and find the way into the hooks 8. When the said
loops have been drawn downwards they are left on the holding or knife hooks 21
The knife hook bai 21 is mounted and carried by the lever 22 pivoted on the
shaft 23 and is operated by the cam 24 on the shaft 17 On one end of the
knife hook bar 21 is a tilting device consisting of lever 25 (see Figs. 1 and 5)
connected by an adjustable link 26 to a lever 27 pivoted on the shaft 12 engaging
with a tappet 28 by means of a roller 29 and sping 30 As the lever 27 is caused
to rock by the tappet 28 a similar rocking motion 18 imparted to the lever 25
which is keyed to the knife hook bai 21 (see Fig 5) and so causes the bar 21
to tilt The other end of the knife hook bar 21 is provided with a roller 31 (see
Fig 5) working in a cam shaped groove 32 (shewn in the plan view Fig 6) fixed
to the adjustable bracket 33 and bolted to the horizontal needle bar 1ª.
As the knife hook bai moves to and fro in the cam shaped groove 32 a slight
endwise motion is imparted to the knife hook bar so as to allow of the latch needles
passing between the huife hooks without colliding with each other Passing
through the slot 34 in the knife hooks 21 18 a band knife 35, preferably serrated
The knife 35 receives its reciprocating motion from a cam 36 (see Fig 7) driven
by chain 37 from the tappet shaft 38 or from other going part. The band knife 35
18 operated by a steel band or wie 1ope 39 which passes over the guide pulleys 40, 40
one on each side of the machine, and the band or 1ope 39 is fixed to a
sliding block 41 carried on a slotted slide 42, a pin 43 fixed in the said block 41
passes through the slotted slide 42 and engages with the groove in the cam 36,
whereby a to and fro motion is imparted to the knife 35, and the loops which are
passed on to the knife hooks 21 are cut as they come in contact with the recipro-
cating knife as the manufacture proceeds
Referring to Fig
which illustrates a front sectional elevation of one end of
the latch needle bar 9 and its connections with the slide 11 On the slide 11
is a turned boss 44 through the centre of which 18 a hole 45. The hole 45 14
for the reception of a pin 46 fixed to an adjustable slide 47 on the needle bar 9
The boss 44 carries a bush 48 flattened on two sides, and this bush fits in a slot
in the end of the slotted lever 10 as shewn in Figs 1 and 2
In order to automatically supply a sufficient length of pile threads to form
the loop and at the same time to maintain tension at the required time, we employ
an intermittent letting off motion and a nip bar which holds the pile threads
whilst the latter are being formed into loops
A bar 49 extends across the machine and 18 suspended in slides 50 one at each
side of the machine by means of chains or bands ol which pass over a quadrant
sector 52 carried on the shaft 53 and provided with an arm 54 in which is a
slot 55 through which is passed a stud 56 connecting the aim 54 to the rod 57,
the lower end of which is attached to a lever 58 pivoted to the frame of the
machine and controlled and operated by the tappet 59 on the shaft 17. The tappet
imparts an up and down motion to the bar 49 and in its upward motion it with-
draws the threads from the creel or other source of supply, and when the bar 49
falls it allows the threads to be taken up and inserted into the backing 2 by the
needles 1 The warp threads are held by the nip bar 60 nipping the threads
between it and the block 61, the nip bar 60 being raised at the required time by
the spring 62 to allow the warp threads to pass by means of the tappet 63 engaging
with a runner or bowl 64 on one arm of a lever 65 pivoted on the shaft 65*, the
other arm of the lever 65 engages with the nip bar 60 and is fitted with screw
adjustment.
A brush 66 extending the full length of the latch needle bar 18 employed for
opening the latch needles. The brush 66 is carried at each end by an arm 67

page_text: pivoted on a shaft 68 and receives a slight forward motion owing to its contact
with a bowl 69 on the end of the lever 10 (see Fig 1)
Referring now to Figs 8 to 14 which illustrate all the motions of the needles
and hooks Fig 8 shews the needles in position for making the first stitch. In
this position the latch needle 8 has passed between the waip threads 3 and the
horizontal needle 1, and the holding or knife hooks 21 are in their inoperative
position and out of the way
In Fig. 9 the horizontal needles have gone back and the latch needles 8 have
gone down taking with them the loop, then the horizontal needles have come
through the backing 2 again, the knife hooks remaining unmoved
In Fig. 10 the latch needle has again come up and passed between the warp
thread 3 and the horizontal needle 1 leaving the first loop in the position shewn
In Fig 11 the two sets of needles are moved together into the position shewn,
the latch needle 8 having passed up between the thread 3 and the horizontal
needle the latch needle 8 is slightly tilted over as it goes down to ensure of
the loop catching in the hook as shewn, and as the latch needle 8 goes furthei
down the loop that was below the latch pulls the latch up as illustrated in the
drawing
In Fig 12 the horizontal needles 1 have gone back and the latch needles 8 are
in their lowest position and the knife hooks 21 have come forward ready to take
the loop as shewn, and as soon as the knife hooks 21 have passed through the
loops they received a slight movement to one side, in order to allow the latch
needles 8 to pass between them
In Fig. 13 the latch needle 8 has gone up between the knife hook 21 and the
loop, and both the latch needle and the knife hook have tilted over, the latch
needle 18 tilted over so that the latch 8ª stands out from the needle to ensure
the thread lifting the latch up and shipping over the needle point
Fig 14 shows one perfect loop formed on the knife hook 21 waiting to be cut
by the knife 35 in the slot 34, which operation takes place when five or six loops
have been placed on the knife hook 21 The process now commences over again
from Fig 8
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 general construction combination and arrangement of the machine as
herein described and illustrated
(2) The construction combination and arrangement of parts for regulating and
determining the length of pile loop in combination with the holding needle 21
and band knife 35 as described and illustrated.
(3) The combination of a band knife and a recessed needle within which the
knife works, as described and illustrated
Dated this 30th day of March 1899