Improvements in Sewing Machines.
Year: 1893

page_text: Date of Application, 26th Oct., 1893
Complete Specification Left, 24th Aug., 1894-Accepted, 20th Oct., 1894
Improvements in Sewing Machines.
I, DANIEL JONES, of 62 Albion Street, Birmingham, in the County of Warwick,
Mechanician, do hereby declare the nature of this invention to be as follows:-
This invention has reference to improvements in sewing machines of the kind in
which a continuously revolving looper is employed to form stitches, and it has for
objects to simplify the construction of such machines and to admit of their being
used at will, either as lock-stitch machines or as chain-stitch machines, as may be
from time to time required.
For this purpose I employ a device comprising a revolving looper adapted to
engage with a loop of the upper thread carried by the needle, and to spread and
carry such loop in an open or untwisted manner, around a supply of under thread
which is carried in a frame supported in a bearing formed in or by the revolving
looper itself.
In carrying out my invention I employ a looper of ring or tubular
form mounted so as to be capable of being continuously rotated about its axis.
This looper is constructed with an opening in its periphery into which the needle
descends, and is provided with a pointed hook arranged to project in the direction
of rotation of the looper, and having its free and pointed end projecting into the
said needle opening and adapted to engage with the loop of upper thread carried
by the needle. The configuration of that part of the looper at the rear of the said
hook is such as to open and spread the loop of upper thread engaged with the said
hook, during part of the revolution of the said looper, and enable the loop to be
passed around the supply of under thread in forming a lock-stitch. The action of
the looper is such, that an open loop is maintained throughout the operation of
opening and closing the loop, thus avoiding the half twist, or doubling action,
produced in machines having revolving loopers as heretofore constructed.
The supply of under thread for forming a lock-stitch is carried and supported
by a frame or holder that is fitted in a groove or equivalent bearing formed within
the revolving looper. The said frame is prevented from revolving by a projection
engaging wth a stationary part of the machine.
To enable the loop of upper thread to be passed around the frame which supports
the under thread supply, a portion of the frame edge working in the groove of the
revolving looper is removed so as to form a notch, which permits the loop of upper
thread to be carried to the back of, and passed entirely around, the said frame and
the supply of under thread supported therein.
To produce a chain-stitch with a looper of the kind described, the under thread
is removed and the direction of feed of the machine reversed, whereupon a chain-
stitch will be formed with an open or untwisted loop as herein before described in
connection with the lock-stitch.
According to one construction, the hook, and the needle opening into which it
projects, are formed in the free end portion of the tubular looper. The hook,
which may be made integral with the body of the looper or be rivetted or other-
wise fixed thereto, is or may be formed with a neck around which the loops of
thread pass and the said body of the looper is or may be bulged or raised on each
side of the hook so that the point of the latter practically projects into the needle
opening and is consequently protected, with the result that a loose loop of thread,
after being disengaged from the hook will be prevented from becoming re-engaged
therewith during the continued rotation of the looper. The body of the looper is
slotted or cut away at one part in order to form a rearwardly projecting part that
carries the hook and the edges of which are made convex and terminate in a point,

page_text: the edge of the looper adjacent to such rearwardly projecting part inclining
outward.
One construction of lower thread carrier or support (hereinafter called a thread
carrier), suitable for use with a looper of the construction hereinbefore described
comprises a ring to the opposite faces of which are secured two sheet metal cups
One of these cups carries a pin upon which is mounted a spring tube adapted to
hold a supply of under thread; the other is formed with a central opening to allow
of the insertion and removal of the thread. The thread carrier, which may be
provided with a tension device, is provided with an external projecting part adapted
to loosely enter a notch in a bar or equivalent device fixed to the bed plate of the
machine and whereby the thread carrier is prevented from rotating with the looper
during the operation of the machine. The said ring carrier is supported within and
by the tubular looper, and is retained in a groove or its equivalent formed within
the said looper.
Another construction of thread carrier suitable for use in a looper of the kind
herein before described, comprises a plate or disc formed with a central opening
through which extends a thread case or cup provided with means, such as a spring
tube, for retaining the lower thread reel or bobbin within it whilst permitting the
reel or bobbin to rotate and unwind the thread thereon. The thread case or
cup is hinged or pivoted to a bracket fixed to the said perforated plate, so
that it can be turned about its hinge or pivot to permit of the ready insertion
and removal of the reel. It may be so mounted that its axis is inclined to the
horizontal. The perforated plate or disc carrying the said thread case or cup,
is retained in the groove formed in the body of the looper, and is prevented'
from rotating by a notched bar or equivalent device which loosely engages
the upper projecting end of the aforesaid bracket. A spring catch is provided
that serves to retain the reel case or cup in proper working position within
the said plate, but nevertheless in such a manner as to yield and permit of the
reel case or carrier being easily turned outward for inserting or removing the
reel or bobbin. A thread guide of channel shape in cross section with diverging
sides may be fixed to the outer side of the case or cup, at one side thereof, to
facilitate the passage of a loop of thread, carried by the looper hook, around the
supply of under thread. To this guide piece may be secured the lower thread
tension device.
The improved looper hereinbefore described may be made in two parts, one of
which is secured to the looper shaft and is adapted to receive the other part which
constitutes the looper proper, and is formed with the needle opening, hook, and
rearwardly projecting part. In this case the plate or disc supporting the under
thread supply may be retained in an annular groove between the two parts.
Dated this 26th day of October 1893.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.
Improvements in Sewing Machines.
I DANIEL JONES of 62 Albion Street, Birmingham in the County of Warwick,
Mechanician 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, that is to say :-
This invention has reference to improvements in sewing machines of the kind in
which a continuously revolving looper is employed to form stitches and it has for
objects to simplify the construction of such machines and to admit of their being

page_text: used at will, either as lock-stitch machines or as chain-stitch machines, as may
from time to time be required. For this purpose I employ a revolving looper
adapted to engage with a loop of the upper thread carried by the needle and to
spread and carry such loop in an open or untwisted manner around the supply of
under thread which is carried in a frame supported in a bearing formed in or by
the revolving looper itself. In the accompanying drawings I have shown one
method of conveniently carrying my invention into practice.
Fig. 1. is a sectional side elevation of a sewing machine constructed according to
this my invention.
Fig. 2. is a front end elevation of the machine shown in Fig. 1.
Fig. 3. is an enlarged elevation of the looper and thread carrier complete,
adapted as aforesaid.
Fig. 4. is an enlarged sectional elevation of the looper and thread carrier with
the reel case thrown forward on its hinge into a position for opening the said case.
Fig. 5. is an enlarged elevation of the under thread support, frame, or ring, to
be carried in the bearing formed in or by the revolving looper.
Fig. 6. is an enlarged elevation of the looper and thread carrier complete.
Fig. 7. is a sectional side elevation of a built up loopèr with reel case arranged
to carry the under thread upon an horizontal supporting pin.
Fig. 8. is a view of a reel case arranged for holding wound masses of under
thread such as balls or pirns.
Fig. 9. is a view of the removable pin for supporting a commercial reel.
Fig. 10. is a view of a reel case arranged for holding commercial reels.
Fig. 11. is a plan and elevation of a reel case with the upper portion in its
position when the case is closed.
Fig. 12. is a sectional elevation of the reel case Fig. 11 showing the commercial
reel supported on its pin by means of a tube provided with springs. A similar reel
case is shown in Fig. 4 attached to the ring or frame carried in and by the
revolving looper.
Figs. 13 to 18. each show a front and a side elevation of the thread operating
devices in their relation to each other while forming stitches.
Fig. 19. shows the portion of the needle thread loop as detained in the notch of
the ring L. when the loop is extended ready to pass over the reel case, parts of the
mechanism being removed to exhibit the loop clearly.
Fig. 20. shows the position of the needle thread loop being held and retained by
the extension 3 of the looper just before being drawn into the material.
In all the figures similar letters refer to similar parts.
A. is a bedplate, B. is an overhanging arm, both of the type common to sewing
machines as usually constructed. The bedplate A. is provided with bearings for
supporting the rotating lower shaft C. The arm B. is provided with bearings for
supporting the rotating upper shaft D. The lower shaft C. is driven or rotated by
means of the connecting rod E. worked by a crank d¹ at the rear end of the upper
shaft D. This said connecting rod is pivoted at some convenient part e' between
the shafts & D. Variable motion is produced in the lower shaft C. by means of
a slot crank c' fixed at the rear end of the lower shaft C. A roller or pivoted
block at the lower end of the connecting rod E. enters the slot crank c¹ and slides
to and fro from the centre of motion during each revolution of the shaft C; thus
varying the ratio of speed of lower shaft C. and the looper F. fixed upon it as
compared with the speed of the upper shaft D. during each single revolution of the
machine.
The bed plate is provided with a throat plate a¹ Fig. 6 suitably slotted for the
passage of the needle and the points of the cloth feeding mechanism, which said
feeding mechanism may he of any suitable description according to the class of
material to be operated upon. The upper shaft D. is provided with the usual
balance wheel (not shown on the drawings) at the rear end of the same.
end of the shaft D. has a take up cam G. fixed upon it having a suitable curved
slot formed in its periphery in which said slot is inserted the stud or roller of the
The front

page_text: take up lever H; the said cam operating the take up lever H. positively throughou
its movements. On the front of the cam G. is fixed a crank pin g' which carries a
connecting link 92 the lower eye of which said link engages with a wrist pin k
fixed upon the needle bar K. By this means the needle bar is caused to reciprocate
vertically in the bearings formed in the front portion of the arm B. in a manne
well understood by mechanics. The arm B. also carries bearings for the usual
presser bar I, and foot, which said foot is omitted from the drawings. The needle
thread is carried so as to be acted upon by a thread clip & such as is shown at 22
Fig. 1 in the drawings of the Specification of Letters Patent granted me and
numbered 23092 of A.D. 1892, in conjunction with any suitable tension arrange-
ment such as shown at 62. The thread is then passed through the eye of the take up
lever and lastly through the eye of the needle. The looper F. is of ring or
tubular form, and may be reduced in diameter at that part which connects with the
shaft C, forming the cup shape shown enlarged size in Fig. 3.
The opening f¹ is formed in the periphery of the looper. In this opening is
formed or affixed the pointed hook f2. This hook may be integral with the looper
body but I prefer constructing it of a separate piece having a shank adapted to fit
a recess formed as shown at f Fig. 6 where the hook is shown retained in position
by screw, rivet, or other suitable means.
character that the finest sewing material will not catch. That part of the looper
The joint must be of such form and
immediately behind the hook is formed into a rearward extension as shown at fa
and operates to spread the lcop of upper thread and cast the same about the under
thread in the manner to be hereinafter described. The shaft side of the extension f³
is continued in the direction of rotation as a curved slot to a point approximately
in a vertical line drawn through the needle bar centre at the moment when the take
up completes its upward movement.
and hold that portion of the loop below the work in a definite position so as to
The object of this arrangement is to confine
avoid entanglement with any part of the mechanism.
looper F. is formed a groove f4 shown clearly in the section Fig. 4 which groove
In the interior of the
serves to support the under thread frame L. Fig. 5. This frame has formed or
fixed upon it the projection which engages with the arm M. which said arm is
carried by the bed plate A. of the machine. At 2 is formed a notch which serves
to permit part of the upper loop to be passed between the said ring and the inner
cavity of the looper.
In order that the frame L. may be inserted in the groove 4 of the looper the
needle clearance opening fis continued as shown by the dotted lines at f³ Fig. 6.
When the frame L. is inserted into the groove edgeways, the extra opening is
closed by the piece of metal f which is retained in place by screws or other
suitable fastenings as shown at f Figs. 4 and 6.
The under thread frame L. is formed to receive the under thread case within it
as shown clearly in Figs. 5 and 6.
spring n' Figs. 26 and 11.
A projection, engages with the thread case
In Fig. 6 the thread case is shown fixed in the under
thread frame L. The said thread case is hinged at n³ so that it may be turned
outward for the purpose of affording easy access to its interior. The under thread
is placed within the reel case N. It is then carried so as to be acted upon by the
under tension spring at n² as shown in Figs. 6, 8, 10 and 11.
thread is left hanging from n² which said length of thread will be embraced by the
A short length of
needle thread loop as hereinafter described. The above described parts are
combined and arranged in relation to each other as indicated in Figs. 1 and 2.
In my Provisional Specification I describe a revolving looper built up in sections 5
(such a looper is shown at Fig. 7) but I prefer the mode of construction shown in
Figs. 3 and 4.
In my Provisional Specification I also describe a thread carrier consisting of two
sheet metal cups affixed to a ring. Such a thread carrier is shown in Fig. 7 in
which L. is the ring. The rear cup carries a pin n adapted to support an under 5
reel or other under thread supply. The front cup has a central opening through
which the thread can be introduced or withdrawn. A projecting retainer lug 18 is

page_text: The reel carrier which I have found
most convenient in practice is shown in section at Fig. 4 and is preferably hinged
at the lower part as shown, although it may be in some cases hinged at the upper
part; and the tension appliance can be fixed on the guard or other suitable part of
the reel case.
A plan and elevation of the reel case detached is shown in Fig. 11.
A spring latch n³ engages with 1³ and holds the reel case in working position. The
under tension seat n² is provided with an under tension spring n shown clearly at
Fig. 4 with adjusting screws for regulating the amount of tension to be put upon
the under thread. The reel case is attached to the ring L. by a hinge n³.
A guard of band form, passes around the reel case, and may be formed with a
conical or taper point as shown on plan Fig. 11; or having the outline of a
truncated cone in plan view; the flat portion at the apex not being wider than the
thickness of the ring L. In Figs. 4 and 12 the centre pin n³ supports a commercial
reel of thread.
adapted to engage with a part M. Fig. 2.
Fig. 10 shows the reel case opened, a joint being formed at the part embraced by
the band guard n. The commercial reel is shown supported on the pin n°. The
loose end of thread from the reel is carried through a notch in side of case N,
through notches formed in the thread guide n' and lastly between the under tension
spring n and seat n². This said thread guide n' registers the position of the upper
portion of the reel case.
The
Fig. 8 shows the reel case open and adapted to use balls or masses of under
thread, known in the cotton trade as pirns. In this case the centre pin n° is
removed and the ball of thread is placed in the lower half of the reel case.
loose end thread from the centre of the ball or pirn is then threaded through the
centre hole of the upper half of the reel case, and passed between the under tension
seat n² and the tension spring fixed thereto. The upper and lower portions of the
reel case are brought together as in Fig. 11 and when turned into the position
shown at Fig. 6. the spring n¹ engages with the latch and the carrier is in position
for working.
1 now proceed to describe the action of the parts during the formation of a
stitch, making reference to the Figures 13, 14, 15, 16, 17, 18, 19 and 20, of the
accompanying drawings. The needle having descended to its lowest position
occupies the needle clearance space f¹ in the body of the looper and also clears the
under thread frame L. by reason of the notch 12 formed in the said frame. This position
is shown in front and side elevation Fig. 13. The needle now cominences to rise
and in doing so forms a loop. The looper F having moved about 18 degrees during
the aforesaid rise of the needle brings the point of the looper hook fin line with
the needle and the loop formed thereon; see Fig. 14.
When the movement of the looper has been continued through about 40 degrees
A further
more the hook will have engaged the loop of the needle thread.
movement of the looper will carry one side of the loop into the notch 2 as shown in
Fig. 15 at about 135 degrees from the position shown in Fig. 13. The further
motion of the looper for about 15 degrees will close in and retain the thread lying
in the notch as shown in Fig. 16 and more clearly at Fig. 19, until ready to be
released as hereinafter explained. When the looper has moved through about
225 degrees from the position shown in Fig. 13, one side of the loop will have
passed behind the reel case N, and the other side of the loop will have passed in
front of the said case, as shown in Fig. 16. That part of the loop which is behind
the reel case passes through the notch 2 and across the bevelled and rounded edge
of the looper. When the looper has moved to about 285 degrees from the position
shown in Fig. 13. the take up lever H. is operated by its driving cam in such a way
as to pull the loop of thread clear from the hook 2 as shown in Fig. 17.
the looper is moving through the remaining 75 degrees of a complete revolution
from the position shown in Fig. 13, the loop remains cast about the rear extension ƒ³
of the looper, and consequently is maintained in position as shown in Fig. 18. and
more clearly in Fig. 20, without risk of fouling or entanglement with any part of
the mechanism. The needle has now descended again to its lowest point as in
While
3

page_text: Fig. 13, and the take up lever H, is caused to fall, and pause, by the action of its
cam as before described. When the hook has engaged a fresh loop from the
needle as in Fig. 14, a further supply of upper thread from the reel is cut off by
the thread clip. (See Fig. 1.) The further movement of the looper through
about 90 degrees of a fresh revolution acts to draw up that part of the loop of
thread which was cast about the rear extension f³. (See Fig. 18.) The take up
lever H operates at this time so as to give out thread, and thus reduce the
rubbing or see-sawing of the thread across the looper point. The continued
movement of the looper draws up the remainder of the loop now cast off the rear
extension and tightens the stitch in the material being operated upon.
under thread is shown in working position in Figs. 3 and 6. This thread is
embraced by the loop of the needle thread and carried into the work at each
stitch.
The
It will now be clearly understood by those persons conversant with sewing
machinery that the loop of the needle thread has been carried in an open or
untwisted manner around the mass of under thread. Part of the said loop has been
drawn up by the action of the take up, and the remaining part by the action of the
looper itself while making the second stitch. It will also be seen that the upper
thread has a clear passage for itself around the under thread and is not subjected to
any undue friction or rubbing. The ring frame L supports the under thread in such
a manner that no oil need come in contact with the thread itself.
When it is required to form a chain-stitch the under thread is removed, and the
feed is caused to move the material in the opposite direction to that required for a
lock-stitch. The needle loop is in this case delivered through the eye of the
previous loop and what is known in the trade as a chain or tambour stitch is
formed.
This invention is not limited to the use of devices exactly like those herein
described and illustrated as conveying motion to the needle and revolving looper,
as instead thereof 1 may use any other suitable devices commonly used in sewing
machines for that purpose. Some of the devices herein described in the thread
carrying and loop taking arrangements of a sewing machine have formed the
subject of previous applications and grants of Letters Patent to myself; but the
detailed improvements in construction and the peculiar combination and arrangement
of parts which form the subject of this my invention give that certainty and
perfection of result which is of immense practical utility.
Having now particularly described and ascertained the nature of this my inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1st. The circularly moveable tubular looper provided with a groove and
supporting a stationary ring carrying a supply of under thread formed so as to
engage the loop of the needle thread and to enlarge and pass the same in an open
or untwisted loop around the mass of under thread and to retain part of the thread
forming the said loop securely around the extension 3 until the looper hook is ready
to take up the next succeeding needle thread loop and draw
part of the former loop into the material in enlarging the said next succeeding loop 4
the said remaining
all substantially as described.
up
2nd. A revolving tubular looper F. formed so as to engage the loop of the nee lle
thread, and to enlarge and pass the said loop untwisted around a commercial reel or
pirn of under thread, and as the said loop becomes decreased in size by the action
of the take up lever H. to retain part of the thread forming the said loop securely 5
around the extension f³ until the looper hook f2 is ready to engage the next succeeding
needle thread loop and draw the remaining part of the former loop up through and
into the material in enlarging the next succeeding loop; the said looper being
provided with a groove to support a ring or frame L for carrying the unter
thread which ring or frame is by any suitable means kept stationary win the 5
looper revolves.

page_text: 3rd. A. sewing machine containing an eye-pointed thread-carrying needle; a
looper provided with a hook or point; a loop spreading and retaining extension in
rear of the looper point; a needle clearance space in the looper; a ring or frame
supporting a reel or pirn case containing a supply of under thread, which ring or
frame is provided with a notch for the reception and retention of the needle thread,
and with a lug adapted to engage with a bar on the frame of the machine thus
preventing the rotation of the said ring or frame, all combined arranged and
operating substantially as described.
4th. In a sewing machine having a thread-carrying and eye-pointed needle;
the use of a looper provided with a hook or point, a loop spreading and retaining
extension in rear of the looper hook and a needle clearance space, in combination
with a take up arranged to give out thread to the looper and to draw thread
clear of the looper point; the said take up operating in combination with the looper
point in drawing up and locking the material at each successive stitch.
5th. In a sewing machine having an eye-pointed thread-carrying needle the use
of a looper F, provided with a hook or point f² a loop spreading and retaining
extension 3 and a needle clearance space ₁; in combination with a take up action
as shown at H. G. Fig. 1. or of any other suitable kind arranged to give out thread
to the looper F and to draw the upper thread clear of the looper point f; the said
take up operating to draw up part of the thread forming a fully extended loop, and
the rest of such thread being drawn up by the looper point fin forming the next
succeeding stitch; all combined arranged and operating substantially as, and for the
purposes, described.
6th. In a sewing machine having an eye pointed thread-carrying needle and a
circularly movable loop taker provided with a hook or point, the use of a reel case
or under thread container consisting of an upper and lower section embraced by a
band adapted to assist in spreading the loop of needle thread; the upper section
of the said case carrying an under tension spring and the lower section hinged or
pivoted to the supporting ring which ring is in turn supported by the revolving
looper and prevented from revolving by a lug engaging a bar fixed to the frame
of the machine all combined and arranged substantially as and for the purpose
described.
7th. In a sewing machine having an eye pointed thread-carrying needle and a
circularly movable loop taker provided with a hook or point substantially as
described, the use of a reci case or under thread container having a removable centre
pin or stud adapting the said reel case for the use of wound masses of under thread
commonly known as balls or pirns.
8th. A circularly movable loop taker made with an internal groove in its
cylindrical portion, an opening being made at bottom of such groove through
the said cylindrical portion for the purpose of inserting the under thread carrier;
a loose section or sections being adapted to close or partially close the said
opening and thus retain the under thread carrier in position substantially as
described.
9th. In revolving loopers with an internal groove in the cylindrical or cup-
shaped portion to carry a thread carrier frame, the use of a circumferential
opening substantially as shown at f* Figs. 3 and 4 and Fig. 6, which may be a
continuance of the needle clearance opening, for the purpose of inserting the thread
carrier frame L; together with a removable section to close all or part of such
opening, or with other suitable means for retaining the frame L within the looper
groove.
10th. A circularly movable looper having a removable or detachable hook
point fitted into a seat formed in the body of the looper substantially as
described.
11th. In a sewing machine having an eye pointed thread-carrying needle the
use of a circularly moveable loop taker provided with a hook or point in
combination with a ring supported in a groove formed by the front and rear
portions of the said looper; the said ring carrying cup shaped discs forming

page_text: EL reel case or under thread support; a horizontal supporting pin springing
from the rear cup shaped disc of the said reel case all substantially as shown and
described in this Specification. All arranged and combined to co-operate each with
'the other substantially as and for the purpose herein described.
12th. In a sewing machine having an eye-pointed thread-carrying needle, the use
of a revolving looper built in sections and provided with a hook or point fin
combination with an under thread carrier frame L Fig. 7, supported in a groove
formed between the front and rear portions of the said looper; the said carrier
frame having a reel or pirn case consisting of the back section to and front section
all substantially as shown in Fig. 7, and described in this Specification.
13th. A sewing machine containing the following mechanical devices, viz. :-A
vertical reciprocating eye-pointed thread-carrying needle; a take up cam and
lever to operate the needle thread; a circularly movable loop taker provided with
a hook or point, a needle clearance space, a loop spreading and retaining extension,
a groove supporting a ring and under thread case; with means to prevent the
rotation of the said ring, the ring having a notch into which the hook or point of
the revolving looper places one part of the loop of thread from the needle, retaining
the thread in the same until is has been passed around the under thread, the loop
being then drawn from the hook by the action of the take up, and then remaining
about the rear extension of the hook seat until drawn therefrom by the combined
action of the looper and take up during the formation of the succeeding stitch all
combined and arranged substantially as and for the purpose herein described and
specified.
14th. A sewing machine containing the undermentioned mechanical devices;
viz. (a) A reciprocating eye-pointed thread-carrying needle. (b) A take up
action preferably consisting of lever H and cam G with their necessary adjuncts.
(c) A revolving looper F provided with a hook or point, a needle clearance
space f, a loop spreading and loop retaining extension 13, and a thread carrier ring
groove f. (d) An under thread carrier ring L supporting a suitable under
thread case and prevented from rotating; the said ring L'having a notch 12 into
which the hook or point f of the revolving looper F draws one part of the loop of
thread from the eye-pointed needle; the notch 12 being constructed to retain part
of the thread of the said loop till the said loop has been passed around the under
thread, and then is drawn off the hook or point f' and is contracted by the action
of the take up arın H. the said contracted loop being retained about the rear
extension 3 of the looper F. until released therefrom, by the tail end of the said
extension of the looper F. coming into position over the said notch 12, when the
thread of the said loop is liberated from the said notch 2 and is drawn into the
material during the formation of the next succeeding loop; all combined and arranged
substantially as, and for the purposes described.
Dated this 23rd day of August 1894.
DANIEL JONES.