Year: 1886

page_text: Date of Application, 20th Oct., 1886
Complete Left, 22nd Aug., 1887
Complete Accepted, 20th Dec., 1887
1 JOHN POYSER of Sherwood Rise, Mansfield in. the county of Nottingham,
Accountant do hereby declare the nature of this Invention to be as follows:-
The object of my invention is to provide a miniature portable or pocket sewing
machine of improved construction, having but few parts and yet possessing an
efficiency in working capacity nearly equal to an ordinary hand or treadle machine.
My improved machine is constructed substantially in the following manner.
A vertical frame is provided with a screw clamp, or other suitable device for
attachment to the edge of a table or other support. Projecting horizontally from
one side of this frame is a small table upon which the material to be sown is
supported.
A vertical slot is formed in the frame above the table and a suitably shaped arm
or bracket is fitted to slide in the said slot. This arm projects over the aforesaid
table and has a hole formed in the outer end, within which the lower end of a needle
bar is secured by a set screw or other suitable device. The upper end of the said needle
bar slides in a hole in a fixed bracket projecting from the top of the vertical frame.
A boss is provided on the said frame, underneath the table, and is bored for the
reception of a horizontal shaft, which carries, on the end under the table, a rotating
shuttle and bobbin for the bottom thread. The other end of the said horizontal shaft
has a crank arm affixed thereto. A pin, on the end of the said crank arm, provided
with a small truck or friction roller, works in a slot in a plate supported in suitable
guides on the back of the frame. The said plate is affixed to the back of the sliding
bracket carrying the needle bar. The crank pin is prolonged and provided with a
handle so that on the rotation of the horizontal shaft thereby, the requisite reciprocating
motion is imparted to the needle by the slot before mentioned, and the shuttle revolved.
A suitably formed cam or cams, or eccentric or eccentrics on the horizontal shaft,
just behind the shuttle, actuate a toothed feeding piece working through a slot in the
table against the underside of a spring presser carried by a projecting arm from the
vertical frame.
A pin fixed to the frame passes through a vertical slot in the said feeding piece
nd a small spring tends to keep it below the surface of the table.

page_text: The aforesaid cam or cams, first come in contact with the bottom of the said feeding
piece, and push it up through the slot in the table, while in such position the cam or
cams carry it forward in a curved path by coming in contact with a downwardly pro-
jecting tail piece thereon, and as soon as the cam or cams have passed such tail
piece, the feeder drops below the table by the action of the spring. Such series of
motions take place at each revolution of the shaft.
The bobbin is retained in the shuttle by means of a hinged or pivotted spring arm,
and can be instantly removed or placed in position.
The reel for the upper thread is carried on a pin fixed in an arm projecting from the
frame, or the said reel may be carried on the fixed upper bracket of the needle bar, the
said bar passing up the inside of the reel.
For taking up the top thread at each stroke, an arm is pivoted on the side of the
frame, the back end of the said arm is slotted and a pin on the sliding needle bracket
enters such slot and works the arm, so that the thread, which passes through a hole in
the front end of the arm, is drawn tight at each downstroke of the needle.
Any suitable form of tension device for the top thread may be employed. The
tension for the bottom thread is preferably given by a projection on the rotating
shuttle coming in contact with an adjustable spring plate under the table.
In place of working the needle by a crank pin, I may employ a cam on the
horizontal shaft, and instead of the sliding needle bracket working in a slot, it may
slide upon a circular pillar on the frame.
With a view to sewing at a greater distance from the edge of the work, I may make
the horizontal shaft and boss, the table, the sliding needle bracket and upper guide
bracket, all telescopic, so that they can be extended and firmly fixed in such extended
position by set screws or other suitable devices.
In place of working the horizontal shaft directly by a crank handle, as described, I
fix
may a spur pinion on the said horizontal shaft and gear the said pinion with a
spur wheel pivotted to the frame of the machine, the said spur wheel being rotated
by a handle, to obtain greater speed of working.
If desired the horizontal shaft may be prolonged in order to be connected with
treadle mechanism.
I prefer for this purpose to use a double treadle acting by means of cords or straps
on two spring clutch pullies on the horizontal shaft.
My improved machine will contain a supply of thread equal to that in an ordinary
hand or treadle machine, and it can be worked as quickly and perform the same
quantity of work as an ordinary lockstitch hand machine.
Dated this 20th day of October 1886.
AMBROSE MYALL, C.E.,
Agent for the Applicant.

page_text: Improvements in Sewing Machines.
I, JOHN POYSER late of Sherwood Rise, Mansfield, in the county of Nottingham,
but now of Steeple Grange, Wirksworth, in the county of Derby, Accountant, 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 :-
The object of my invention is to provide a miniature portable or pocket rotary
sewing machine of improved construction and possessing an efficiency in working
capacity nearly equal to an ordinary hand or treadle machine.
In the accompanying eleven sheets of drawings, Fig. 1 is a front elevation, Fig. 2
a back elevation, Fig. 3 a right hand side elevation, and Fig. 4 a left hand side
elevation of a sewing machine constructed according to one method of carrying out
my invention.
•
Fig. 5 is a side elevation, and Fig. 6 is a sectional plan through the line a a in
Fig. 5 of a modified form of guide for the needle bar arin.
Fig. 7 is a sectional elevation and Fig. 8 is a plan of an alternative device for
retaining the shuttle within the rotating hook.
Figs. 9 and 10 are front elevations of the feeding device in different positions.
Fig. 11 is a front elevation shewing the method of working the take-up arm.
Fig. 12 is a front elevation of an alternative device for the same purpose.
Fig. 13 is a plan, and Fig. 14 is a sectional clevation through the line b b in
Fig. 13 shewing a means of enlarging the table of the machine when required.
Fig. 15 is a general front elevation and Fig. 16 is a general side elevation
of a sewing machine constructed according to my invention, in a somewhat modified
form.
Figs. 17 and 18, are front elevations of the feeding device used in the machine
shewn in Figs. 15 and 16.
Figs. 19 and 20 are side and back elevations respectively of the upper part of a
machine showing a modified form of take-up arm and a modified thread tension
device.
Similar letters refer to similar parts throughout the whole of the drawings.
A vertical frame A is provided with a screw clamp B, or other suitable device, for
attachment to the edge of a table or other support. Projecting horizontally from one
side of the frame A is a small table C, upon which the material to be sewn is
supported. A vertical slot D is formed in the frame A above the table C and a
suitably shaped arm or bracket E is fitted to slide in the slot D. The arm E projects
over the table C and has a vertical hole formed in the outer end, within which the
lower end of a needle-bar F is securely affixed. The upper end of the needle bar
slides in a hole in a fixed bracket or guide H, projecting from the top of the vertical
frame A. A stuffing-box H¹, may be provided on the guide H as shewn, if desired,
to insure smoothness in the motion of the said needle-bar. The set-screw F' secures
the needle J in the end of the bar F.

page_text: A boss K is provided on the frame A, underneath the table C, and is bored for
the reception of a horizontal shaft L, which carries on the end under the said table, a
rotating hook M and shuttle M' for the lower thread. The other end of the shaft. L
has a spur pinion N keyed thereon. A shaft I is journalled in a boss K', underneath
and parallel to the shaft L and has a spur wheel N¹ keyed thereon gearing with the
pinion N.
Rotary motion is given to the shafts L and L', by means of the winch or handle L
on the shaft L'. The spur wheels N¹ and N, as shewn, are in the proportion of
1 to 1, to increase the speed of the machine, but any other suitable ratio may be
employed.
A plate O is held in vertical guides 01, 0, on the back of the frame A. The said
plate is affixed at its upper end to the back of the arm E, which projects through the
slot D so that it practically forms one rigid piece with the said arm E, the needle
bar F and needle J.
The required reciprocating motion is imparted to the needle by means of a crank
pin P, preferably provided with a truck or roller P¹, affixed to the pinion N, and
working in a suitably formed slot in the plate O, as clearly shewn in Fig. 2.
In place of a crank-pin, I may employ a cam upon a shaft L, or spur wheel N
working in a slot or opening in the plate O, to give the required reciprocating motion, and
instead of the arm E sliding in a slot D in the frame A, it may slide upon a standard
or post of suitable section, as shown in Figs. 5 and 6, in which D¹ is a post (in this
The
case of semicircular section) uniting the bracket with the frame A.
arm E slides upon the said post and the plate O is affixed to the said arm by set
screws E¹.
The rotating hook M and shuttle M¹, as shewn, are of the well known "Wheeler
and Wilson" type, the shuttle being of the same or nearly the same capacity as in
an ordinary full-size treadle or hand machine, but any other suitable form of rotating
hook and shuttle may be employed, provided the latter holds an ample supply of
thread. The shaft L is prolonged beyond the boss K¹, as shown in Figs. 3 and 4,
and the projecting part is slightly tapered, and of such size that the shuttle M' can be
slipped thereon and yet held sufficiently tightly to enable the thread to be wound on
the said shuttle by turning the winch L². The shuttle with its cover is retained in
the hook by the arm Q pivotted on the pillar Q¹, a set screw Q2 holds the said arm
in position, and on loosening the said screw, the arm can be turned aside to allow the
shuttle to be removed.
In the alternative device for the above purpose shewn in Figs. 7 and 8, the arm Q
is provided with a stem 2, having a pin 3 projecting through a right angled slot
in the tubular pillar Q³, a spring 5 holds the arm Qin position. When it is desired
to remove the shuttle the arm Q is pulled out until the pin 3 reaches the transverse
part of the slot 4, when the said arm can be turned aside, and on turning the arm
back, the spring automatically returns it to the former position.
Figs. 9 and 10 are front elevations of part of Fig. 1, with the hook shuttle and
take-up arm removed to show the feeding mechanism. R is a feeding piece having
the upper end, which projects through the table C, provided with teeth of the usual
form. A pillar S (Figs. 3 and 4) on the frame A has a pin S¹ at the end, which enters
a vertical slot R¹ in the piece R, and a spring R2 tends to keep the said piece R in
its lowermost position, as shown in Fig. 9. A cam T is fixed upon or formed solid
with the shaft L and rotates in the direction shown by the arrow. The said cam
coming in contact with the horizontal edge R³ of the piece R, lifts the teeth above
the surface of the table C, as shewn in Fig. 10, and while retaining them in that
position, strikes the downwardly projecting part R, and so carries the teeth forward
in the direction of the arrow.
The piece R thus acts as a lever, with the pin S¹ for a fulcrum. After the teeth
are moved forward the further rotation of the cam T permits the piece R to drop again
to the position shewn in Fig. 9. A set screw U, provided with a milled head, works
in a tapped hole in a boss or stud U₁ under the table C, the end of the said screw

page_text: stitch.
bearing upon the edge of the piece R, acts as a stop thereto, and determines by its
position the amount of horizontal motion of R and consequently the length of
A presser V, against the underside of which the teeth of the piece R work
in the usual way, slides in guides in the arm V₁, projecting from the frame A.
It is pushed down by a spring V2, and held up when required by the pivotted
catch V³.
The top of the piece R, on which the teeth are cut, is so formed that when it is in
the position shown in Fig. 10, the teeth on the left hand of a vertical line drawn
through the centre of the pin S¹ are parallel with the table C, but the teeth on the
right hand are in a curve formed to a radius from the centre of S¹. This causes the
feeding teeth always to act at a uniform height above the table C.
The tension on the lower or shuttle thread is regulated by a projecting plate 12 on
the hook M, coming in contact with a spring plate 13 affixed to the underside of the
table C by a set screw 14, but holes may be formed in the cover of the shuttle, and
the lower thread passed through these holes to effect the same purpose.
The reel 6 for the upper thread is carried on a pin W on the top of the frame A.
The thread passes from the reel round a tension device X, of any suitable construction,
and after going round a small pulley in the outer end of the take-up arm Y, is led
through an eye Z on the frame A, and an eye Z' on the arm E, to the needle J. The
object of the eye Z¹ is to keep the thread parallel with the needle. The take-up
arm Y is provided to take up the loop or slack, formed by the hook M at each
stitch.
Fig. 11 is a front elevation of part of Fig. 1 with the hook, shuttle and feeding
mechanism removed to show the method of working the said arm Y. A suitably
formed cam 7 fixed upon or formed solid with the shaft L acts upon a truck or roller 8
on a short lever fixed at the end of the hollow spindle 9, this spindle works on a
pin 10, projecting from the frame A, and carries at its inner end the arm Y. A
spring 11 keeps the truck 8 in contact with the cam 7, but in place of employing a
spring, the truck 8 may work in a cam path 7ª formed in the face of the disc 7B, on
the shaft L, as shown in Fig. 12.
The dotted lines in Fig. 11 show the position of the cam 7 and arm Y at the end
of the outward stroke of the latter.
In Figs. 13 and 14, the table C is shown enlarged by means of a removable piece C',
of any suitable size, which may be slid on and secured as shown in Fig. 14, when it
is desired to have better support for the material being sewn.
In the modified form of machine shewn in Figs. 15 and 16, no spur gearing is
employed to increase the speed, but the winch L² is connected directly to the crank
pin P and the machine is reduced in size and simplified in construction as compared
with that shewn in Figs. 1, 2, 3 and 4. A disc 7B having a cam path similar to that
shewn in Fig. 12 is employed to work the take-up arm Y.
A disc capable of horizontal sliding motion on a pin 15, when in the position
shown in Fig. 15, keeps the shuttle in place in the rotating hook, but when the disc Q
is slid to the left, the notch 16 in the bracket carrying the pin 15, permits the said
disc to fall forward sufficiently to enable the shuttle to be removed.
In the feed mechanism shewn in Figs. 17 and 18, a cam T actuates the feeding
piece R, which is pivotted, and is capable of vertical motion by means of the slot R
upon a stud S. In Fig. 17, the cam rotating in the direction of the arrow, has, by
coming in contact with the horizontal face of R, raised the teeth above the table Č.
The further rotation of T, while still holding up the teeth, brings it in contact with
the face R and moves the teeth forward, the cam then coming in contact with the
face R', pulls the teeth down below the table, as shewn in Fig. 18 and the spring R
pushes the piece R back against the adjustable screw stop Ů, which is provided to
regulate the length of stitch.
In both forms of the machine the handle is for greater convenience made to turn
the same way as a right-hand screw, and one machine being geared and the other
worked direct the rotating hooks have to be constructed right and left-handed

page_text: respectively and the different arrangements of the feeding mechanism are also thereby
rendered necessary, in other respects the two machines substantially resemble each
other.
By a slight modification of the feeding mechanism shewn in Figs. 17 and 18, it
may however be employed for the geared machine, wherein the shaft L rotates in the
opposite direction, such modification consists in placing the upper horizontal face
of R and the lower horizontal face R³ in one vertical plane, and the vertical face R*
in another vertical plane, the cam T acts only on the face R, and a second cam is
provided to act on the faces R and R³.
In the ungeared machine shown in Figs. 15 and 16, the rotating hook M, feed
cam T and face cam 7 for working the take-up arm, are by preference all made in one
piece, thus simplifying and strengthening their construction, and it is obvious that
the same arrangement may also be applied to the geared machine.
In the modified arrangement of take-up arm shewn in Figs. 19 and 20, the said arm
consists of a lever Y, pivotted on the edge of the frame A at 17, and having a slot 18
formed in the lower end, a pin 19 fixed on the plate O carries a roller 20 working in
the said slot, which is so shaped that the reciprocating motion of the plate O gives the
required motion to the lever Y to take up the slack formed by the rotating hook. The
modified tension device is so arranged as to form also a support for the reel. The
tension dises 21, 22 are supported on a collar on the pin W and are pressed together
by a spring 23, the tension being regulated by a nut 24 on the end of the pin W.
The said nut and the spring are of such size that the reel 6 will pass freely over them,
and it is supported on the loose washer 25. The thread passes from the reel through
the eyes 26, 27, then between the tension discs to, the eye 28, from whence it passes
through the eye 29 in the end of the arm Y to the eye 30, and thence through the
eye Z to the needle.
In the construction of sewing machines made according to my invention, I do not
necessarily confine myself to the exact details of construction herein set forth, provided
the essential features of the said invention be retained.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The combination of parts forming the improved portable or pocket rotary sewing
machine, substantially as herein described and shewn with reference to Figs. 1, 2, 3,
and 4 of the accompanying drawings.
2. The combination of parts forming the improved portable or pocket rotary sewing
machine, substantially as herein described and shewn with reference to figs. 15 and 16
of the accompanying drawings.
3. In a portable or pocket rotary sewing machine, the needle bar F, arm E, and
plate O, forming practically one rigid piece, in combination with the crank pin P, or
cam, on the spindle L, so that the needle is worked directly from the said crank pin
or cam, substantially as herein described and shewn.
4. In a portable or pocket rotary sewing machine, the device for retaining the
shuttle in place in the rotating hook, consisting of the arm Q, stem 2, tubular
pillar Q3, spring 5, pin 3 and right angled slot 4, substantially as set forth with
reference to Figs. 7 and 8.
5. In a portable or pocket rotary sewing machine, the device for retaining the
shuttle in place in the rotating hook, consisting of the disc Q sliding on a pin 15,
and notch 16, substantially as set forth with reference to Figs. 15 and 16.
a
6. In a portable or pocket rotary sewing machine, the feeding device consisting of
piece R with slot R', spring R², pin S₁, cam or cams T and screw stop U, substantially
as set forth with reference to Figs. 17 and 18.
7. In a portable or pocket rotary sewing machine, the face cam 7B for working the
take-up arm Y, substantially as set forth with reference to Fig. 12.
8. In a portable or pocket rotary sewing machine, the construction of the rotary

page_text: hook M feed cam T and face cam 7B in one piece, substantially as herein set
forth.
9. In a portable or pocket sewing machine, the removeable piece C₁ for enlarging
the table C, substantially as set forth with reference to Figs. 13 and 14.
10. In a portable or pocket rotary sewing machine, the take-up arm or lever Y
pivotted on the frame A, and actuated by a pin 19 on the plate O working in a slot 18
of such form as to give the required motion to the said arm, substantially as herein
described and shewn with reference to Figs. 19 and 20 of the accompanying.
drawings.
11. In a portable or pocket rotary sewing machine the combined tension device
and reel holder, constructed substantially as herein described and shewn with reference
to Figs. 19 and 20 of the accompanying drawings.
Dated this 22nd day of August 1887.
AMBROSE MYALL,
21, Cockspur Street, London, S.W.,
Agent for the Applicant.
AMBROSE MYALL,
21, Cockspur Street, London, S.W.,
Agent for the Applicant.