Year: 1886

page_text: Date of Application, 27th Nov., 1886
Complete Left, 9th Sept., 1887.
Complete Accepted, 21st Oct., 1887.
We CECIL NOBLE and HUBERT HAES of Newman Mews, Newman Street Oxford
Street in the county of Middlesex, Mechanical Engineers and GEORGE LENTON ROFF
of 32 Norfolk Strect Strand in the county of Middlesex Member of the Institute of
Civil Engineers do hereby declare the nature of this invention to be as follows:-
The said invention relates to the construction of a new or improved sewing
machine whereby we are enabled to produce a lock-stitch which shall be alike on both
sides from two ordinary or other bobbins or reels supplying two needles and are also
able to dispense with the shuttle, looper or hook and the usual feed used in the
ordinary lockstitch machines.
Our invention consists in arranging a pair of needles opposite to each other and so
operated that as one needle enters the cloth the other has a retrograde motion, the
needles at the same time crossing each other in the act of making the stitch.
No slack thread is used, the amount taken up by the needles being just sufficient to
make the stitch which admits of the thread from the bobbins or reels being led
directly to the needle eyes.
In carrying out our invention we arrange a suitable bracket or stand capable of
being clamped to a table or support or of being fixed thereto if desired or otherwise
suitably mounted.
On this bracket or stand we arrange a slide or link moving on a pin or guide so
that a combined reciprocatory and oscillatory motion may be imparted to the same.
We arrange arms or bosses on the bracket or stand having slots or holes bored or
formed therein advantageously so that the section of the slots or holes conforms to
the shape of truncated cones joined at their minor axes and in these slots or holes
we arrange to work rods, bars or stems carrying the needles and jointed at their
outer ends to the said slide or link.
By reason of the form of the said slots or holes in the said arms or bosses the rods,
bars or stems carrying the needles can oscillate as well as reciprocate.
We arrange a work plate and also an adjustable presser as in ordinary machines
through which the needles work.

page_text: We provide means for withdrawing one or other of the needles from the cloth,
fabric or material, advantageously the upper one, such as by jointing its rod bar or
stem to a bellerank kept up to its place by a spring so that one needle can be released
at the end of a seam so as to remove the cloth, fabric or material.
The bobbins or reels are carried on the slide or link and are mounted on pins
provided with adjusting springs and nuts or equivalent devices to regulate the
tension.
To adjust the length of the stitch we provide one or more adjustablo stops or
screws on either side of the end of the slide or link to limit its oscillatory movement.
We thread the needles on opposite sides and to facilitate this may place the bobbins
or reels on opposite sides of the slide or link.
In starting the machine we withdraw one needle from the work plate and presser
and insert the work between the two, the needles being threaded the machine is
started.
The slide or link moving causes one needle with its thread to advance and pierce
the work, this needle retreating forms a loop into which the second or opposite
needle with its thread now enters detaining the said loop whilst the first mentioned
needle completes its retrograde motion and thus the stitch is formed.
The retrograde motion of cach needle draws sufficient thread from its bobbin to
form the stitch and the oscillatory motion of the needles drags the fabric forward
so forming the feed.
Dated this 27th day of November 1886.
POPPLEWELL, COLTON & Co.,
Agents for the Applicants.

page_text: We CECIL NOBLE and HUBERT HAES of Newman Mews, Newman Street Oxford
St. in the county of Middlesex Mechanical Engineers, and GEORGE LENTON Rorr of
32 Norfolk Street Strand in the County of Middlesex, Member of the Institute of
Civil Engineers 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 the construction of a new or improved sewing machine
whereby we are enabled to produce a lockstitch which shall be alike on both sides of
the fabric from two ordinary or other bobbins or reels supplying two needles in such
a manner as to dispense with the shuttle looper or hook and the usual "feed" in
lockstitch machines, and it consists in arranging two diagonally placed needles
opposite each other and so operated that as one needle enters the cloth or fabric to be
sewn the other has a retrograde motion and in such manner that they cross each other
in the act of making the stitch.
No slack thread is required, the quantity taken up by the needles being just
sufficient to make the stitch and this arrangement allows of the thread from the
bobbins or reels being led directly to the needle eyes.
Referring to the accompanying drawings and to the figures and letters of reference
marked thereon.
Figure 1 shews a side elevation of a machine constructed according to our
Invention.
Figure 2 is a front elevation of the same.
Figure a side elevation of part of the top of the upper needle bar with its locking
spring.
Figure 3 an elovation of the upper part of the needle bar showing the notch for
its locking spring.
Figure 4 a plan of the locking pawl as applied to the notch in the needle bar.
Figure 5 a plan of presser foot.
Figure 6 a plan of the pulley or face carrying the eccentric for communicating
its motion to the slide or link and the needles the same being shown with the screw
for adjusting the length of stitch mounted thereon for making the largest stitch.
Figure 7 the same with the screw set for making the smallest or shortest stitch.
Figure 8 an end elevation of the same.
Figure 9 a plan of the eccentric strap hereafter described fitting the said eccentric
for communicating motion to the slide or link aforesaid both for the purpose of
effecting the feed and for adjusting the length of stitch as will be more particularly
referred to and described hereafter.
Figure 10 a transverse section through the pulley or face and the boss Y.
In carrying out our Invention we arrange a suitable bracket or stand A capable of
being clamped to a table or support or fixed thereto if desired or otherwise suitably

page_text: mounted. B B are clamp screws mounted on the said bracket or stand. C is the
work table or plate which for convenience in threading the needles we make to
swivel on a centre D and be kept fixed in position when closed by a spring E fixed
on the table and pressing on the bracket or stand.-F is a support for the work
table or plate to rest on when swung into position.-We arrange arms or bosses G, H
on the bracket or stand A and in these pivot sleeves or sockets I, J, with slots or holes
formed therein and in these slots or holes arrange to work rods bars or stems K, L
carrying the needles as shown. These rods bars or stems K, L, hereinafter referred to as
the needle-bars" are jointed by screws, pins or centres M, N, to a slide or link O
(as shown made of rod) and passing through holes in bosses P. Q. carried by a
rocking bar or pivoted lever R to which motion is imparted as hereafter described.
The said slide or link O has motion imparted to it by a pin guide or centre T worked
from a connecting rod U which is driven by crank motion off the pulley or face V
carrying the eccentric W hereinafter referred to, or, other suitable means of actuating
the slide or link O can be provided.
It will be seen that the motion up and down of the slide or link O in the holes in
the bosses PQ will cause a combined reciprocatory and oscillatory movement of the
needles which will cross each other in the act of making the stitch.
To provide for the oscillatory motion of the needle bars We could if desired
dispense with the pivoted sleeves or sockets I, J, in the arms or bosses G, H, and
from holes in the same conforming to the shape of truncated cones joined at their
minor axes so that the needle bars could reciprocate as well as oscillate therein but we
prefer the equivalent arrangement shown as being better adapted to stand wear and
tear.
We have before referred to the eccentric W and will now proceed to more fully
explain its office and mode of operation. As regards Figures 6 to 10 it will be seen
that the eccentric W is mounted on a pivot a carried by a pulley or face V which is
shown provided with a handle X (which may be pivoted on its pin and arranged to
be swung on one side and controlled by a spring for convenience of packing) and
also grooved to admit of receiving a driving band or strap for a treadle mechanism.
The centre or pivot of the pulley or face V is mounted in the boss Y on the stand
or base A.
The eccentric W fixed to the pulley or face V moves freely on a. pin or centre a,
a strap bencircles the eccentric W and has a lug or projection c to which a pin dis
fitted forming the fulcrum of a connecting piece e formed with a slot f for purposes
of adjustment the same slot fitting a ping on the rocking bar or lever R pivoted on
a pin or centre h on the base or stand. The slot f can adjust on the pin g so altering
the relation of the eccentric strap thereto. Motion from the pulley or face V will
rotate the eccentric which freely turns on its axis a so operating the strap b which by
means of its pind and connecting piece e joining the pin g on the rocking bar or
lever will oscillate the latter on its pin or centre so causing the needles to have
an approaching movement relative to each other as the stitch is being formed and thus
effecting the feed.
As the length of the stitch must be varied it becomes necessary to provide for the
same and this we effect by screw adjustment in the following manner.
The pulley or face V has the crank of the handle for rotating the same and the
end of the connecting rod U mounted on a pin or centre a¹ on a slide i working
in a groove or guide, shown dovetailed for convenience, in the pulley or face V; a
fixed stop or abutment j is fitted on the pulley or face through which a screw & passes,
the end of the screw working also in end of the slide i.
Motion imparted to the screw will consequently move the slide i forward or
backward on the pulley or face V thus altering the fulcrum or point of connection of
the connecting rod U with the pulley or face; and the rod U being coupled to the slide
or link O by the pin guide or centre Tits travel is adjusted by such action allowing
the needles to approach and cross each other in greater or less juxtaposition so
regulating the length of the stitch according to the position occupied by the slide
on the pulley or face V.

page_text: m is the presser foot mounted in a pillar n having a slot o in which a pin p in
the stem of the presser foot works so that the presser foot may be lifted up the slot
and the pin p turned to keep the foot raised. is a spring to keep the foot down.
This arrangement does not form part of our Invention.
To provide means for lifting the upper needle bar K. and its needle to clear the
fabric we arrange the needle bar to slide in a socket carried by the slide or link O
and in this needle bar we form a notch s (see Figure 3), a spring tends to pull up
the needle bar.
We pivot a pawl u on the support v controlled by a spring w whose tendency is to
keep the pawl u pressod against the needle bar.
When the needle bar K is pushed down, the paul u enters the notch s and the
needle bar is in its lowest position and reciprocates and oscillates with the slide or
link connecting the upper and lower needle bars.
To raise the upper needle from the fabric the paul u can be pressed by its finger
piece so as to leave the notch s in the needle bar when the spring t will pull up the
needle bar clear of the fabric and the work table C.
Z, Z, are the bobbins mounted on pins on the slide or link O. 7 are springs to
regulate the tention of the thread paid off the same and Z³ are the lock nuts adjusting
such springs.
We are aware that attempts have been made to produce a sewing machine with two
needles but not as we believe working according to our invention and we are also
aware it has been proposed to provide means for withdrawing one or both noodles
from the fabric.
Having now particularly described and ascertained the nature of our said invention
and in what manner the saine is to be performed we declare that what we claim is :-
First A sewing machine having a pair of needles working opposite each other
diagonally carried by needle bars united by a slide or link moving in or worked
from a centre and to both which needle bars a combined reciprocatory and
oscillatory motion is imparted through the said slide or link, causing the said needles
to cross each other in the act of making the stitch as described.
Second In combination with a pair of diagonally placed needle bars having a
connecting slide or link imparting to them a combined reciprocatory and oscillatory
motion, a screw or like device for limiting such motion, and so altering the stitch,
substantially as described.
Third The general arrangement and combination of parts constituting our new
or improved sewing machine substantially as described and illustrated in the
accompanying drawings.
Dated thin 0th day at Cantomkom 1907
POPPLEWELL, COLTON & Co.,
17 & 18, Southampton Buildings, London, W.C.,
Agents for the Applicants.