Year: 1886

page_text: Date of Application, 19th Nov., 1886
Complete Left, 8th Aug., 1887
Complete Accepted, 18th Oct., 1887
1 WILLIAM JONES of the firm Jones & Co. of Guide Bridge, in the County of
Lancaster Sewing Machine Manufacturers do hereby declare the nature of the
said invention, to be as follows:-
My invention relates to and consists in improved combinations of mechanism for
sewing with a needle and rotary shuttle in which there is a spool carrying thread, the
shuttle is rotating in a circular race being carried through the loop of the needle
thread.
The combination of mechanism for actuating the needle and giving rotary motion
to the shuttle is the same, or is similar to that described in the Specification of Letters
Patent granted to me Numbered 16,388 A.D. 1884 where three or more cranks are
formed on the shaft actuating the needle, connected by rods with corresponding
cranks on a shaft below the cloth plate. The shuttle to be actuated is arranged in
bearings in which it can be rotated, so that its nose or point will first take the loop of
the needle thread and then pass through as the shuttle rotates.
I prefer to construct the shuttle (and thus forms one feature of my invention) with
a V groove in its periphery to be carried in Velged guides or bearings, though its
periphery may have a V edge, and the bearings or carriers for it, a V groove, but I
prefer the former arrangement.
The shaft for rotating the shuttle has a quick and slow motion imparted to it as
described in the Specification of my aforesaid Letters Patent and a simple driver in
the end of a disc on the driving shaft is or may be used.
Or two driving projections are or may be used one propelling the shuttle during
one part of the rotation and the other projection during the other part of the rotation
of the shuttle to allow spaces between the drivers and shuttle for the thread to
freely pass over the shuttle and clear of the drivers.

page_text: One driving projection pushes or may push against the heel of the shuttle, and the
other driving projection pushes against a projection near the point end of the
shuttle.
One of the drivers is fast to the part on the end of the driving shaft, the other
driver is a projection from a lever jointed to the disc or part on the shaft and it is
forked and passes or may pass on each side of a bush forming the bearing in which
the driving shaft rotates the projecting exterior of this bush being excentric to the
driving shaft and bowl, on a stud in the lever is kept against the excentric bush by a
spring abutting at one end against the disc on the driving shaft and at the other
against the lever carried by it.
Dated this Eighteenth day of November 1886.

page_text: I WILLIAM JONES of the firm Jones & Co. of Guide Bridge, in the County of
Lancaster, Sewing Machine Manufacturers 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 :-
My invention relates to and consists in improved combinations of mechanism for
sewing with a needle and rotary shuttle in which there is a spool carrying thread
the shuttle in rotating in a circular race being carried through the loop of the needle
.thread.
The combination of mechanism for actuating the needle and giving rotary motion
to the shuttle is the same or is similar to that described in the Specification of Letters
Patent granted to me Numbered 16,388 A.D. 1884 where three or more cranks are
formed on the shaft actuating the needle connected by rods with corresponding cranks
on a shaft below the cloth plate. The shuttle to be actuated is arranged in bearings
in which it can be rotated, so that its nose or point will first take the loop of the
needle thread and then pass through it as the shuttle rotates.
I prefer to construct the shuttle with a V groove in its periphery to be carried
in Vedged guides or bearings, though periphery of the shuttle may have a
V edge, and the bearings or carriers for it a V groove but I prefer the former
arrangement.
The shaft for rotating the shuttle has a quick and slow motion imparted to it as
described in the Specification of my aforesaid Letters Patent and a simple driver in
the end of a disc on the driving shaft, is or may be used.
Or two driving projections are or may be used one propelling the shuttle during
one part of the rotation and the other projection during the other part of the rotation
of the shuttle to allow spaces between the drivers and shuttle for the thread to freely
pass over the shuttle and clear of the drivers.
One driving projection pushes or may push against the heel of the shuttle, and the
other driving projection pushes against a projection near the point end of the
shuttle.
One of the drivers is fast to the part on the end of the driving shaft, the other
driver is a projection from a lever jointed to the disc or part on the shaft and it is
forked and passes or may pass on cach side of a bush forming the bearing in which
the driving shaft rotates, the projecting exterior of this bush being excentric to the
driving shaft, and a bowl on a stud in the lever is kept against the excentric bush by
a projection from the lever or by a spring abutting at one end against the disc on the
driving shaft, and at the other against the lever carried by it.
Fig. 1 is an elevation on one side with two plates on that side of the arm removed,
which plates are used to give access to the mechanism within the hollow arm.
Fig. 2 is an elevation looking towards the shuttle end of the machine,

page_text: Fig. 3 is a plan section looking from the top side of the machine with the cloth
or table plate of the machine supposed to be cut away.
Fig. 4 is a vertical section taken in the dotted line A-B fig. 1.
Fig. 5 is an elevation, drawn full size, looking towards the shuttle end of the
machine, with the front cover plate removed, to show the needle and presser har
mechanism, and is a section through the table frame of the machine and the cloth
plate, showing a front view of the rotary shuttle and mechanism for feeding the fabric
being sewn.
Fig. 6 is an end elevation of the plates forming the rotary shuttle race and showing
the shuttle driver.
Fig. 7 a side sectional elevation of the parts shown in fig. 6.
Fig. 8 is an end elevation showing the plates forming the rotary shuttle race and
the rotary shuttle.
Fig. 9 is an elevation showing the plates in section forming the shuttle race also
the shuttle in position and the shaft on which the shuttle driver is fixed.
Fig. 10 is an elevation of the plates forming the shuttle race in section and the
shuttle in position looking from the opposite side of the shuttle to that shown in
fig. 9.
Fig. 11 is an end elevation of the spool case, fig. 12 a section through the case in
the line of the axis for the spool and fig. 13 a side elevation of the spool.
Fig. 14 is a detached sectional view to show the arrangement of the driving wheel
and its connection with the shaft.
Fig. 15 is a sectional elevation full size, of the tension discs and parts detached, and
fig. 16 a front elevation of the same.
Fig. 17 is a plan of the spool winding mechanism detached.
Fig. 18 is an end elevation of a modification of the shuttle driving mechanism.
Fig. 19 is also an end elevation of the shuttle driving mechanism with the front
plate supposed to be cut off from the end of the driving shaft to show the lever plate
and other mechanism behind. The rotary shuttle and the driver in section is also
shown in this figure.
Fig. 20 is an elevation of the shuttle driving mechanism from the back showing
the driving shaft in section.
Fig. 21 is a sectional elevation in the plane of the axis of the driving shaft showing
the shuttle driving mechanism in a position as seen when looking in the direction of
the straight arrow on fig. 19.
The needle and feed and other mechanism will first be described and then the
shuttle mechanism.
a is the table or plate of the machine, a¹ the hollow arm of the machine.
In fig. 1 the two plates which are removable to make openings to give access to the
mechanism in the hollow arm are taken off.
b is the driving wheel, which is arranged on the end of the shaft c (see fig. 14) and
so that it can be revolved without driving the shaft c when winding thread upon the
spools for the shuttle.
The wheel is secured on the shaft c between the end of a bush a fitting and
secured in a hole in the casting by a screw a³ and a disc plate c¹ firmly screwed on
the end of the shaft c so that the driving of the wheel when revolved tends to screw it
firmly on the shaft c.
In the boss of the wheel b there is a hole parallel to the axis of the shaft c for a
sliding bolt 6 which is moved end ways towards the disc c¹ screwed on the end of the
shaft c by a helical spring 62 which shoots its end into either of two holes c² in the
dise when the wheel and shaft are to move together.
The sliding bolt & has a lateral pin 63 screwed in it which can move to and fro with
the bolt, there being a slot in the boss of the wheel & to permit of this movement, and
when the bolt, has been withdrawn from the hole in the disc c', the slot in the boss of
the wheel turns at a right angle into which slot the projection from the bolt is
moved to hold the bolt out of gear, and when this pin 63 is released from the angle
slot the bolt is then at liberty to be shot by the spring into one of the holes
in

page_text: the disc c when the wheel 6 in turning brings the bolt 6¹ opposite one of the holes in
the disc. In fig. 14 the sliding bolt is shown withdrawn so that the wheel b can be
rotated without driving the shaft c.
The first part of the driving shaft c is made with four discs between which thore
are three crank journals at equal distances, that is at 120 degrees of the circle apart.
The inner disc for the crank has a boss to which is secured the shaft c³ for acuating
the needle slide.
This shaft has a bearing at a and upon the shaft the cam ct is secured, the disc
face of this cam having a crank pin e in it (see figs. 2 and 5) for one end of a con-
necting rod d' which is jointed to a pin on a boss d² secured on the side of the needle
slide d which works up and down through bushes d³ screwed into the casting.
The needle d is secured at the lower end of the slide d by means of a screw
clamp d³ in an ordinary manner the screw clamp having in it a wire dⓇ between
which and the clamp the thread is passed and guided in an ordinary manner before
passing to the eye of the needle d*.
t
There is also a bent wire e¹ secured to the lower edge of the cover plate (see
figs. 1 and 2) between which and the cover plate e the thread is also passed in an
ordinary manner to guide and retain it in position passing to the needle slide.
g
The thread passes from a spool on the upright spindle on the arm a¹ then between
a bent wire e secured in the upper corner of the cover plate e and the cover plate
(see figs. 1 and 2) then to and between the spring and tension discs which are of
ordinary arrangement on a stud g¹ secured in the cover plate e (see detached views
figs. 15 and 16) then through the eye or curl of a spring g giving light tension and
partly moving when acted upon by the tension of the passing thread round the
tension discs
the end of the spring g² being coiled spirally round the stud y² and
working in a space between the cover plate e and a thin disc g³ on the stud g¹ for the
tension discs.
There is a thin adjustable curved stop plate g with a slot in it for a screw g
that screws into the boss on the cover plate e for the tension discs and the upper
edge of this thin plate g being adjustable round the last named boss serves to
limit the extent of the back movements of the small spring g².
This spring acts to keep a slight tension on the needle thread when the needle
thread without it would be liable to get in the way and become entanged with the
point of the needle.
After the needle thread has passed through the eye of the small spring ³ it is then
passed through the eye in the tension arm c and then passes to the guide wires e¹
and do before referred to and then to the eye of the needle d'.
The tension arm c is a bell crank lover (shown best in fig. 1). It is mounted on a
fulcrum e screwed into the hollow arm a¹ and the other arm of this lever c has a pin
in it for a bowl fitting a cam groove in the cam c secured on the shaft which cam
gives the movements for taking the ose end of the slack thread levered to its lowest
and giving out slack thread as required.
The cam is shaped to bring
position when the needle is in its highest position and in about one fourth of the
revolution of the shaft c³ the cam c acts to lift the eye part of the slack thread lever c*
to its highest position during which time the needle has made about half its descent
then the cam e acts to lower the eye end of the slack thread lever during the tinie
the needle is making the second half of its descent and then the cam dwells during
about a sixth part of a revolution while the needle is ascending, the cam then causing
the eye end of the tension arm to descend again to its lowest position while the needle
is making the second half of its ascent, there being a dwell in the cam for about an
eighth of a revolution about the time the crank pin for the needle slide is passing its
upper centre.
The presser bar is arranged in the ordinary manner and in slides same as the
needle bar d.
It has a boss ¹ secured to it having a projection, which is grooved on its upper
face to fit the end of a flat spring h³ which is jointed on a screw fulcrum piu in the
hollow arm a at h³,

page_text: The end of the spring / fits the grooved projection from the boss ´¾¹ and this
prevents the presser bar from turning round.
h is the screw screwing through the arm a¹ the point of which screw comes upon
the upper side of the flat spring by which the pressure upon the presser foot A³ is
regulated.
The foot is a thin piece of metal bent as shown, and is secured by a screw to the
lower end of the presser bar h.
This foot is forked for the needle d* to pass through as usual. A is the lever jointed
at by which the presser slide is lifted and held up.
The three cranks on the shaft e have each one end of a connecting rod 8 jointed to
them the other or lower ends of these rods being jointed to corresponding cranks on a
shaft in two bearings a on the framing to which shaft i rotation is thus given from
the upper shaft c.
One of these connecting rods e nearest the driving wheel is slotted in its lengthway
as shown in fig. 4 for a bowl 1 in a stud in the end of a lever having its lower end
jointed to an arm k¹ from a shaft k oscillating in screw centres k².
The upper end of this lever j thus receives oscillations from the lateral motion of
the slotted connecting rod c³.
There is a bowl on a stud in the side of the lever which bowl works in a cam
groove formed across the end of a lever j the lower fulcrum end of which is jointed
on a stud jo to the framing, and this lever has a round screw nut ja inserted and
fitting a hole in the lever which is slotted in the edgeway to allow the end of a
screw to pass freely and screw into the tapped hole in the round screw nut jo.
The screw screws through a hole in the hollow arm a' and there is a helical spring
on the screw between the inside of the hollow arm a' and the lever j*.
By rotating this screw the lever is placed as required to bring one part or another
part of the cam groove to act upon the bowl one part of the cam groove being
at about a right angle to the lateral movement imparted to the lever by the slotted
connecting rod e and the other part of the cam groove is at an angle to the line of
that movement.
It will thus be seen that if the cam groove were in a curve or radius struck from
the joint of the lever j with the arm k from the shaft k the lateral oscillations given
by the connecting rod would impart no end movement to the lever j and consequently
no oscillating movement to the shaft k but by moving the lever j* so that the bowl will
oscillate in the angular part of the cam groove more or less end and consequently
oscillating movement is imparted to the shaft k which gives the feeding movement
to the fabric being sewn.
The shaft k has two other arms with screw centres to carry another shaft 3 having
a lever or arm k to which the roughened or serrated feeding surface or surfaces k
are attached.
The end of the lever carries a bowl which rests on a horizontal armı k³ from a
shaft carried in screw centres & as best seen in fig. 3 and another horizontal arm k*
from this shaft that rests upon a cam upon the shaft i which cam * gives the
lifting movements to the feeding surface ko.
.
A helical spring k attached to a hook in the shaft k at one end and to a hook
in the feeding lever k at the other end pulls the feeding arm down and keeps its
bowl pressing at the same time upon the arm k from the shaft k³, keeps the
other arm k* upon the lifting cam . Under the plate or table of the machine
there is another shaft before mentioned rotating in two bearings a and a' and
the inner end of this shaft has a crank and crank pin connected by a link with a
crank pin on the end disc of the shaft i.
The two shafts i and are in the same vertical plain but the axis of the shaft i¹
is higher than that of the shaft i as seen best in figs. 1 and 4.
Thus arranged a slow and quick rotary movement is imparted to the shaft
and consequently to the propeller secured thereon which is seen most clearly in
figs. 6, 7 and 5.
The rotary shuttle / shown best in figs. 8, 9, 10 and 5 is made with a hook or

page_text: Deak to catch upon the loop of the needle thread, enlarge the loop and carry it
over the body of the shuttle.
The shuttle is constructed of the form shown in the figures with parts cut away
to make it of as little weight and as nearly balanced as possible on its axis of
rotation, which is that of the stud in its centre, upon which the hole in the axis of
the spool case m is placed.
The edge periphery of the shuttle is made by preference with a V groove, as
shown, which fits freely corresponding V edged plates secured by screws to the
frame part of the machine.
The V edge plates are made in two parts 3 and 4 of the form shown most clearly
in figs. 6, 7 and 8.
There is an opening between the V edged plates at the upper side as shown to allow
the loop of the needle thread to be taken by the beak of the rotary shuttle and cast
off when it has passed over the shuttle or the shuttle has passed through the loop.
There is or may be a piece of leather 1 or other suitable fibrous capillary material
arranged as shown in fig. 5 and clamped when arranged by a sinall plate 16 secured
by one of the screws which also secures one of the V edged plates 1³.
The end of this leather or other material is brought to come into the V groove
in the edge of the shuttle to slightly touch it, so that when oil is dropped upon the
outside turned up end of the piece of leather at 1x it will pass by capillary attraction
to the V groove and give it lubricant but not in 'excess.
The two ends of the propellor or driver 17 (see figs. 5 and 6) do not both come
in close contact with the rotary shuttle one end is always clear to give space for the
loop of the needle thread to pass over the shuttle and between the shuttle and driver l'
at the right time.
In ordinary working the shuttle is not removed only the spool case m for the
shuttle thread.
The spool case is shown in figs. 11, 12 and 13. It consists of a cylindrical
metal case m closed and rounded at one end as shown and at the other end it is
open.
It has a tubular central axis m³ which fits freely upon the stud in the shuttle and
the spool m² which is of metal is formed by two dished discs of metal connected by a
tubular axis which passes freely upon the hollow axis m¹ of the case m.
The thread passes from the spool and is drawn into a diagonal slit cut in the
cylindrical part of the case m from the open end to about the middle between the two
ends of the cylindrical part of the case m so as to come under a flat spring m³ curved
to the exterior periphery of the spool case m and secured thereto by two small screws
(see fig. 13).
This flat spring m³ is to give the required tension to the shuttle thread which is
adjusted by the screw m²,
One screw m³ secures the flat spring m³ to the case but does not bring its free end
close against the side of the case and the other screw m* is for the purpose of bringing
the free end of the spring with more or less pressure against the side of the case and
consequently against the thread passing between the two surfaces.
From the closed end of the spool case there is a projection mⓇ seen in figs. 5, 11,
12 and 13.
The projection me is arranged to come between a fork in an arm n, the fork thus
acts to prevent the spool case m from revolving with the shuttle 7 and it also acts to
retain the spool case in the shuttle, leaving sufficient space between itself and the
spool case for the loop of the needle thread to pass freely and the projection mª
is made smooth and is arranged to point upwards so that the loop of the needle thread
will pass freely without catching upon the projection m®.
The arm n is secured upon a shaft n' as shown in figs. 1 and 2 and this shaft passes
through a hole as in the framing (see figs. 6 and 7).
There is an helical spring n² on the inner end of the shaft n' which acts between a

page_text: collar on the end of the shaft n¹ and the framing to draw the shaft n¹ to bring the
arm n towards and hold it near the spool case m when in the shuttle.
There is a pin n³ in the arm n which enters a hole for it in the plate to hold the
arm n when in its correct position retaining the spool case in the shuttle but when
the latter is to be removed the end knob on the shaft n' is pulled the spring n gives
way and allows the pin n³ to be withdrawn from the hole in the plate and the
arm n to be turned on one side to allow the spool case m to be removed and replaced.
The spindle mechanism for winding thread upon the shuttle spools is shown in figs. 1
and 2 and also by the detached view fig. 17.
The spindle p has its bearings in one end of an arm p² on one side a pulley p² is
secured upon it with an india rubber tire to work against and be rotated by the driving
fly wheel b as shown in fig. 2.
The other end of the arm p' is jointed upon a fulcrum p³ on the end or back of
the arm a¹, and the fulcrum end of the arm p' is formed with a notch for the rounded
end of a bolt p* to enter, which slides freely in a hole in a projection a from the
framing this bolt p* being pressed outwards by an helical spring. When the end of
the bolt p is in the notch in the fulcrum end of the arni p¹ the pulley p² is held
clear of the driving wheel 6 but when the arm p³ is turned until the notch is clear
of the spring bolt p* and its end comes against the incline on the fulcrum part of the
arm p¹ then the pulley p² is pressed with sufficient force against the wheel b to give
the required adhesion for driving.
The spindle p is slit to make it elastic so as to compress a little when the spool is
forced upon it to give sufficient friction upon the tubular thread spool to drive it
when rotated.
The figs. 18, 19, 20 and 21 illustrate a modification for driving the shuttle.
is the shuttle driving shaft, it works at its shuttle end in a tube secured in the
bearing a which tube at its exterior overhanging end is excentric to the shaft 2¹
as seen best in figs. 19, and 20.
18 is a disc solid with or fast on the end of the driving shaft i. It is made of the
form shown, being the part acting as the driver of the shuttle during part of each
revolution.
To the back of the disc 18 a disc lever q is secured on a screw fulcrum pin q¹
there being a hole in the disc lever q for the shaft and excentric ³ from the
bearing bush to pass and allow the disc lever to oscillate clear of the excentric i³.
This disc lever has a screw stud 12 on one side upon which an antifriction bowl q³
is fitted to work against the excentric and on the opposite side of the disc lever
there is a projection 9 which comes close against the excentric ³.
In place of this projection q* a small spring is or may be arranged to press upon
the excentric i³.
This projection q* or spring keeps the bowl q³ close to the excentric ³ as the driving
shaft rotates.
It will thus be seen that as the excentric ³ is stationary the disc lever 2 will be
slightly oscillated to and fro once during each revolution.
There is a projection 9 from the disc lever q which is bent as shown in fig. 21 and
this projection 9 as the driving shaft rotates, acts alternately with the point end
of the driver to propel the shuttle the projection 95 pushes against a shoulder 1 at
the point end of the shuttle 1 and the point end of the driver pushes against the
heel of the shuttle.
As shown in fig. 21, the needle d' has nearly descended to its lowest position, and
in the position in which the rotary shuttle is shown in fig. 19 (the line being that
in which the needle descends) the point end is about entering the loop in the needle
thread and there is then a space between the shuttle at 1 and projection q for the loop
of the thread to freely pass clear of the projection 9' and by the time the loop of the
needle thread is about to pass from the heel 11 of the shuttle the projection q³ has
become the driver by pressing against the shoulder 12 of the shuttle leaving a space
between the point of the driver l' and the heel 11 of the shuttle.

page_text: There is a small screw 9 which is or may be used to screw through a slot in the
lever plate o into the disc plate 18 of the shuttle driver.
The head of this screw q keeps the lever disc q close to the back of the front
disc while the slot permits the lever disc q to oscillate freely.
Having now particularly described and ascertained the nature of my said invention, and
in what manner the same is to be performed, I wish it to be understood that I do not
claim the thread tension arrangement shown in figs. 1 and 2 and by the detached
figs. 15 and 16 of the drawings on the shuttle pool winding arrangement shown in
figs. 12 and 4 and by the detached view fig. 17 of the drawings but declare that what
I do claim is:
1. The combination of three or more cranks and connecting rods between the upper
shaft for actuating the needle slide, and the lower rotary shafts and arrangements for
giving quick and slow rotary motion to rotary shuttles substantially as hereinbefore
described and illustrated by the drawings.
2. The combination and arrangement of rotary shuttles and spool cases and
mechanism for retaining same as hereinbefore described and illustrated by the
drawings.
3. The combination and arrangement of rotary shuttle driving mechanism
substantially as herein before described and illustrated by figs. 18, 19, 20 and 21 of
the drawings.
4. The combination of rotary shuttle driving and feeding mechanism substantially
as hereinbefore described and illustrated by figs. 1 to 13 inclusive of the drawings.
5. The combination and arrangement of rotary shuttle sewing machine mechanism
substantially as hereinbefore described and illustrated by figs. 1 to 13 inclusive of the
drawings.
6. The combination and arrangement of rotary shuttle sewing machine mechanism
substantially as herein before described and illustrated by figs. 1 to 13 inclusive of the
drawings when modified as hereinbefore described and illustrated by figs. 18 to 21
¡nclusive of the drawings.
2