Improvements in Bobbin Winding Apparatus used in connection with Shuttle Embroidery Machines.
Year: 1897

page_text: Date of Application, 11th Dec., 1897
Complete Specification Left, 12th Sept., 1898-Accepted, 10th Dec., 1898
Improvements in Bobbin Winding Apparatus used in connection
with Shuttle Embroidery Machines.
I, JOHANN JAKOB KELLER, of Marlé, Aisne, France, Spinner and Embroiderer, do
hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in bobbin winding apparatus used in
connection with shuttle embroidery machines which apparatus at present chiefly
consists of a frame in which is mounted the driving shaft carrying a driving pulley,
a friction wheel and a cam operating the thread guide and to which frame is
hinged a table resting upon a spring and carrying the shaft of the bobbin spindle
furnished with a friction pinion adapted to be brought in and out of contact with
the said friction wheel.
To the aforesaid table is pivoted a two armed lever, one end of which is connected
to a presser plate and the other placed under the influence of a spring and adapted
to operate in conjunction with a double cone placed longitudinally under the
influence of a spring.
When commencing to wind, the said double cone is withdrawn by hand and the
free end of the said lever thereby brought to bear underneath it. The cone spring
having thus become compressed, then expands, presses the said table inwards and
brings the friction pinion on the spindle shaft in contact with the friction wheel on
the driving shaft and the said presser plate with the thread on the spindle.
As the bobbin increases in diameter, the free end of the said lever rises and
when sufficient thread has been wound falls behind the said cone, thus allowing
the spring upon which the table rests to expand and move the table outwards and
thereby the friction pinion out of gear with the driving wheel.
In this type of bobbin winding apparatus at present the attendant has to push
the table towards the driving wheel withdraw the aforesaid double cone by hand,
also remove the finished bobbin, fasten the thread to a suitable part of the spindle
shaft when starting and break the thread when the bobbin has been wound.
The object of my invention is to provide means whereby the said operations now
performed by hand will be performed mechanically and thus the winding apparatus
rendered entirely automatic in action.
In carrying out my invention I attach to the frame of the apparatus in front of
the said table and bobbin spindle, a lever having a stationary and a movable arm
projecting towards the said bobbin spindle which together form jaws and are
adapted to grip the finished bobbin when brought between the same by the table
on its outward movement. During this movement the thread slung round the set
screw which secures the bobbin spindle to its shaft is cut by a kind of a knife
in such a manner that a piece about 33" in length will protrude from the inside of
the finished bobbin, which is of very great importance as otherwise the bobbin is
of no use. The said movable jaw rests upon a rod which by means of a cam is
raised as soon as the bobbin has arrived between the said jaws and is thus gripped
by the latter.
Another cam then moves the said jaw lever side-ways and the bobbin is thereby

page_text: stripped off the spindle. By means of a cam and an angular lever the said table
is then moved inwards until the friction pinion and wheel are nearly in contact
with each other. The said jaw lever then moves slowly back to its original position
and at the same time a thread needle pivoted to the said table is caused to rise by
means of a cam. During this movement the said needle catches the thread
reaching from the bobbin between the said jaws to the thread guide of the
apparatus and places it upon the table near the aforesaid set screw. Through a
projection on the cam which actuates the said angular lever, the aforesaid friction
pinion is then brought into contact with the said friction wheel which rotates
continuously and the spindle shaft, its set screw and bobbin spindle is thereby
caused to revolve. During the rotation of this set screw it catches the thread
which running from the said needle to the thread guide and at the same
movement a shear also actuated by a cam cuts the thread running from the said
needle to the bobbin in the jaws near to the bobbin.
The cut end of the thread then rolls on to the left of the said set screw and is
retained there so that the tread from the guide is caused to follow the rotation of
the spindle, whereby a fresh bobbin will be formed. The same lever which closes
the shear then lifts the aforesaid double cone and thereby causes the free end of
the double armed lever operating in conjunction therewith to take up its position
below the said cone. The cain in connection with the said shear then opens the
shear again and allows the said coue to move back thus bringing the spring on the
latter into action and thereby pressing the table and friction pinion mounted in the
same, inwards, as in the case in the non-automatic machine hereinbefore
described.
The aforesaid angular lever then releases the table being moved back by the
respective cam to its original position. After the thread running from the table
to the bobbin in the said jaws has been cut the cam which actuates the rod
supporting the movable jaw, lowers said rod quickly and thus opens the said jaws
so as to cause the bobbin to drop through a channel into a box. The said rod is
afterwards caused to rise slowly and partly close the jaws. Immediately after the
jaws have been opened as described, the thread needle is lowered by its cam. All the
said cams are fixed upon one shaft and perform the various movements preferably
during one revolution. For this purpose a toothed wheel having 2-3 teeth left
out is fixed upon the said shaft. The wheel driving the latter meeting with the
said blank part will stop together with its shaft and the cams thereon. To start the
said wheel again automatically a lever under the influence of a spring is employed
which, whilst the thread needle is lowered, by a cam is lifted, caused to engage a
nose and remain in such position until the table moves outwards. During this
movement the said lever is released, a bowl on the same pushes against the said
cam and the spring of the said lever then turns the said cam, its shaft and space
wheel forwards until the latter gears with its driver and thereby receives one turn
during which all the movements described are performed.
The shaft upon which all the cams are fixed may be mounted vertically to the
base of the frame or for instance horizontally thereto and to the driving shaft or
vertically to the latter and parallel to the said base, it being obvious that according
to the position of the said shaft the shape of the said cams and respective levers or
connections will be varied.
The aforesaid thread needle may also be adapted to move in a straight line in lieu
of in a circular line.

page_text: Improvements in Bobbin Winding Apparatus used in connection
with Shuttle Embroidery Machines.
I, JOHANN JAKOB KELLER, of Marlé, Aisne, France, Spinner, do hereby declare
the nature of this invention and in what manner the same is to be performed, to
be particularly described and ascertained in and by the following statement :-
This invention relates to improvements in bobbin winding apparatus used in
connection with shuttle embroidery machines which apparatus heretofore chiefly
consisted of a frame having mounted therein the driving shaft carrying a driving
pulley, a friction wheel and a cam operating the thread guide and to which frame
is hinged a table or bracket resting upon a spring and carrying the shaft of the
bobbin spindle furnished with a friction pinion, adapted to be brought in and out
of contact with the said friction wheel and to the aforesaid table being pivoted a
two-armed lever, one end of which is connected to a presser plate and the other
placed under the influence of a spring and adapted to operate in conjunction with
a double cone placed longitudinally under the influence of a spring.
In this type of machines when commencing to wind it is necessary to withdraw
by hand the said double cone and bring the free end of the said lever thereby to
bear underneath it. The cone spring having thus become compressed, then expands,
presses the said table inwards and brings the friction pinion on the spindle shaft in
contact with the friction wheel on the driving shaft and the said presser plate with
the thread on the spindle.
As the bobbin increases in diameter, the free end of the said lever rises and when
sufficient thread has been wound falls behind the said cone, thus allowing the spring
upon which the table rests to expand and move the table outwards and thereby the
friction pinion out of gear with the driving wheel.
The attendant has also to push the table towards the driving wheel, withdraw
the aforesaid double cone by hand, remove the finished bobbin, fasten the thread to
a suitable part of the spindle shaft when starting and break the thread when the
bobbin has been wound.
The object of my present invention is to provide means whereby the said
operations now performed by hand will be performed mechanically and thus the
winding apparatus rendered entirely automatic in action.
And in order that my invention may be more fully understood I have caused to
be appended hereunto two sheets of drawings marked with letters of reference
indicating like parts in the various figures, Fig. 1, Sheet I, being a sectional end
view, Fig. 2 a plan, Fig. 3, Sheet II, a front view and Figs. 4 & 5 respectively
detached end and front views of my improved bobbin winding apparatus.
In describing my improved bobbin winding apparatus I find it advisable to divide
the description of the whole apparatus into two parts, viz. :—
1) The non-automatic as heretofore used and
2) My improvements which render the apparatus automatic.
The said non-automatic part consists chiefly of the frame a, Figs. 1, 2 & 3, of a
shaft mounted therein, of the driving pulley, friction wheel and cam, c, d, e,
secured upon the shaft b, which cam rapidly oscillates the thread guide f pivoted to
the fork f. Also of a table or bracket y, Fig. 1, pivoted to the spindle g¹ having
mounted in its upper end the bobbin spindle h upon which is secured the friction
pinion h¹ the pulley c being rotated by a cord and the friction pinion by the friction
wheel d. To the upper end of the bracket g is pivoted a double ended lever i, see
Fig. 1, and dotted lines Fig. 2, one end of which is placed under the influence of a
spring which tends to pull it down and the other end jointed to the presser
plate k.
Between the thread supply spool (not shown) and the thread guide f,
is employed a tension disc 1, Figs. 1 & 2, through which the thread passes.

page_text: Bobbin Winding Apparatus used in connection with Shuttle Embroviery Machines.
Referring to my improvements they consist and operate in conjunction with
the non-automatic part of the apparatus described as follows:-
The thread is wound on to the bobbin spindle h and as it increases in diameter
the presser plate is gradually depressed and the spring end of the lever i glides
up the free end of a slide m, Figs. 1, 2 & 3. By means of a bolt anil nut m¹, m²
this slide is tied to an arm n fixed to the frame a and its outer end is placed
under the influence of a spring n¹ which tends to draw the slide in and press
its front end against the spring end of the double ended lever i and thereby
the friction pinion h¹ against the friction wheel or driver d so as to be rotated
thereby.
The bracket g is formed with a weighted arm g² the force of which is overcome by
the spring n¹ and the friction pinion is thus always kept in contact with the
driver d during the winding of the bobbin.
When the bobbin has attained the desired diameter, the free end of the slide m
is released by the lever i and the weighted arm g causes the bracket to fall back
and bring its spindle h and bobbin thereon between two jaws o, o¹ fulcrumed to the
rod o mounted in the frame a¹. This back movement is limited by the buffer a²,
Fig. 3, which also serves as a brake for the friction pinion h¹. Near the bottom of
the apparatus is mounted on the spindlo pa catch lever q adapted to support one end
of the double ended lever the other end of which is placed under the influence of a
When the said
spring which tends to depress the supported end of the lever .
weighted arm drops it strikes one end of the catch lever q, which releases the
lever and the latter striking against the incliue 7 of the cam 8, the space wheel t
secured to the shaft t¹ of the cam s will have imparted a partial turn and be brought
into gear with a pinion 2 revolved continuously by the worm to on the shaft t*
driven from the driving shaft b by means of the pulleys b¹ & 62 and a cord.
the cam wheel t has completed its revolution its toothless space will be positioned
opposite the pinion and thus at rest.
7"
After
At the commencement of the rotation of the cam s its incline 2 passes under the
set screw of and actuates the angular lever u. The upper end of the latter is
furnished with an angular rod u which raises the movable jaw o¹ against the
relative stationary one o and causes the bobbin on the spindle h to be gripped
between the same. The incline 3, Fig. 1, on the cam 8 then passes under the
bowl of the lever vand the latter pressing against a bowl o³ on the jaw rod o²
moves the rod forward. The latter is furnished with a bracket p¹ adapted to hold
the top jaw o vertically in position and push same forward with the bottom or
movable jaw o¹ and thereby strip the bobbin off its spindle h.
lever v.
The bracket p¹ is formed with a slot p², see Fig. 3, adapted to receive and hold
both jaws together whilst being pushed forward independent of the action of the
When the bobbin has left the spindle h, the incline 4, see Fig. 3, on the
cam 8 passes under the lower end of the angular lever w, Fig. 3, and causes its
upper end, furnished with a set screw w¹, to press against and move the bobbin
spindle bracket g towards the driving shaft 6 until the friction pinion h¹ and driver d
are about apart from each other.
This movement provides room for the return of the bobbin spindle h and jaws o
& o¹ and the thread carrier x, hereinafter more fully described, to perform its
functions.
The return movement of the jaw rod o² and jaws o, o¹ takes place the moment
the cam incline 3 has passed the jaw rod lever vand is effected by two weights 8¹
& 82, see Figs. 2 & 3, s¹ being connected to the rod o² and s² to the top jaw o by
means of cords 83 and s¹ respectively. In lieu of the said weights springs may be
employed.
The thread carrier x is pivoted to the bracket g and the moment the jaw rod
begins to return is moved from the right to the left by the cam s secured to the
upper end of the shaft t¹. This movement brings the thread between the bobbin in
the jaws and the thread guide f across and upon a piece of plush applied to the

page_text: part g of the bobbin spindle bracket
in which position the thread carrier x will
remain until the said thread portion is cut by a shear y, y¹.
The latter is secured to the frame part a¹, one blade y being stationary and the
other y¹movable.
By a rod y, the lower shear blade y¹ is connected to an angular lever fulcrumed
to the spindle p and operated upon at its lower end by the incline 6, see Fig. 1, of
the cam 8.
Immediately after the thread has been cut the incline 4 of the cam s gives a
further movement to the lever wand thereby brings the friction pinion h¹ into
contact with the driver & so that the spindle h commences to revolve again. The
latter is furnished with a stud 2 which as it revolves catches the thread held by
the carrier x upon the plushed part g³ and winds the same upon the thick part of
the spindle h, whilst on its thin part a fresh bobbin is formed.
Immediately afterwards the incline 2 on the cams passes the set screw on the
lower end of the lever u and allowing the same to drop, releases the bottom jaw o¹
and thereby allows the same to fall and the finished bobbin to drop from the
jaws o, o¹ down a shoot z¹ out of the apparatus.
Upon the frame a¹ is secured at the side of the shear y, y¹, Figs. 1 & 2 a saw-like
knife o, which cuts the thread between the bobbin and the stud h² when the
spindle with the bobbin falls back between the jaws o & o¹ and thus leaves a
piece of thread protruding from the inside of the bobbin which is always the same
length.
When the bobbin has dropped as described the thread carrier x is returned to its
original position by means of the spring x1, see Fig. 3, connected therewith.
In order that the presser plate and lever i may also take up their original
positions, the angular lever is formed with a projection which when the lever z
closes the shear y, y¹ draws the slide m back so as to allow the spring i to pull the
corresponding end of the lever i in front of the free end of the slide m.
The incline 6 of the cam s then allows the lever z to drop and thereby open the
shear y, y¹ whilst at the same time the slide spring n¹ comes into operation again
and retains the friction pinion ¹ in contact with the driver d and the winding of a
fresh bobbin takes place in the manner as hereinbefore described.
It may be yet remarked that towards the completion of one revolution of the
cam s the incline 4 on the same, allows the lever to fall back from the bobbin
spindle bracket g and the incline 1 on the cam s actuating the spring lever ?, causes
the catch lever q to engage and retain the latter in a raised position whilst in the
meantime, the toothless space of the cam wheel t is brought opposite its pinion t²
and the rotation of the cam s thereby interrupted during the greatest part of the
winding of the bobbin.
By tightening or slackening the slide nut m² the diameter of the bobbin may be
decreased or increased at will.
In lieu of employing the jaws o & o¹ upon a longitudinally sliding rod as
described, the same may be arranged as shown in Figs. 4 & 5, Sheet II, the upper
jaw o being attached to the upper end of a lever o² suitably oscillated and the lower
jaw o hinged thereto and raised by a rod u¹ actuated by a suitable projection 3 so
as to grip the bobbin between the jaws for the purpose of stripping it off the
spindle.
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
1st. In bobbin winding apparatus used in connection with shuttle embroidery
machines, a device for stripping the finished bobbin off its spindle and for
temporarily holding it, consisting chiefly of a pair of jaws o & o¹ employed upon a
rod or lever o², all substantially as and for the purpose set forth.
2nd. In a bobbin winding apparatus, such as specified in the preceding claim, an
intermittently reciprocated lever x adapted to catch the thread between the bobbin

page_text: in the jaws o, o¹ and the thread guide f, to carry same between a shear y, y¹ and
hold it in position whilst one portion thereof is cut and the other caught by a stud h
on the bobbin spindle h, all substantially as aud for the purpose set forth.
3rd. The application of the improvements described to non-automatic bobbin
winding apparatus, all substantially as set forth.
... 101 1
Lambo 1900
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.