An Improved Machine for Winding Threads on Brass Bobbins used in Lace Machines.
Year: 1890

page_text: Date of Application, 11th Dec., 1890-Accepted, 17th Jan., 1891
UI U
An Improved Machine for Winding Threads on Brass Bobbins used
in Lace Machines.
I, WILLIAM BENSON, 86 Robin Hood Street, Nottingham, Engineer, do hereby
declare the nature of this invention and in what manner the same is to be
performed, to be particularly described an ascertained in and by the following.
statement:
To prevent undue expansion of the sides of brass bobbins when threads are wound
upon them I employ a machine constructed as follows:-
UUMI DUELE
An Improved Machine for Winding Threads on Brass Bobbins used
in Lace Machines.
I, WILLIAM BENSON, 86 Robin Hood Street, Nottingham, Engineer, do hereby
declare the nature of this invention and in what manner the same is to be
performed, to be particularly described an ascertained in and by the following.
statement:-
To prevent undue expansion of the sides of brass bobbins when threads are wound
upon them I employ a machine constructed as follows:-
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a front view of the machine with the front end of a spindle bearing
broken away.
Figure 1 shows a right side view of a treadle D³.
Figure 2 a right side view of the machine, showing the front disk clear of the
back one.
Figure 2 a front end view of a sliding bearing C shown separately.
Figure 3 a plan of the machine with the disks clear of each other.
Figure 4a right side sectional view of the machine showing the rims of two disks
supporting the sides of a bobbin while a thread is being wound on it.
Figure 5 a plan of the same.
Figure 5A a plan of the back end of the spindle bearing bed, with a rocking lever D³,
and set screw D7 removed.
Figures 6 show an enlarged edge view and side view of one bobbin, having part of
one side broken away to show the thread wound on it.
Figure 7 is a back end view of the machine showing the driving belt at work.
Figure 8 a front end view of the machine showing the driving belt out of work.
Figure 9 is a cross sectional view of the machine on the line a, a, Figure 2 showing
the brass bobbin in position on the stud B³ carried by the back spindle with the thread
being wound on it.
Figure 10 shows a, front view of a tension apparatus forming part of the
machine.
Figure 11 a plan, and
Figure 12 a right side view of the tension apparatus.
Each machine consists of the following parts.
The top of a table or platform A is slotted and provided with two pair of bearings.
in each of which a shaft revolves carrying a pulley A¹, see Figure 1, round both
pulleys an endless belt A* is passed. The shaft to the right at the back of the plat-
form is provided with a driving pulley A³ round which a belt may be passed from a
main driving pulley.
Between the pulleys a bearing bracket B is bolted to the platform, in which a back
spindle B revolves and a front bearing C slides see Figures 4 and 5.
The front end of the spindle B' terminates in a disk recessed on its front face to form
a narrow rim B2 at its circumference, and provided at its centre with a square stud B³
upon which a brass bobbin D is placed. The back end of the spindle rests upon a
screw threaded tail pin provided with a lock nut and capable of adjustment in a
bracket B secured to the back bearing.
The front end of the bracket B forms bearings for a tubular bearing C, in which a
front spindle C revolves, its back end terminating in a disk recessed on its back face
to form a narrow rim C2 at its circumference, the centre of the disk is bored out to
allow of the free revolution of the stud B3 within it. The spindle is retained in the
tubular bearing by a short pin C3 carried by the bearing engaging with a groove

page_text: ent in the spindle, the front end of which rests upon a screw threaded tail pin C
provided with a lock nut and capable of adjustment in the bearing C.
While thread is being wound on a bobbin 1) the rim C² of the front spindle is
held up to it, by the following means. An arm projects from the lower side of
the bearing C slotted at its lower end, and provided with a cap C in which a
bearing C is swivelled, the bearing carries a connecting rod CT screw threaded at
its front end, and provided with lock nuts, behind the swivelled bearing, the con-
necting rod is enlarged to form a collar C, and in front of the bearing an open
spring Cis coiled round the rod, the pressure of the spring being adjusted by the
lock nuts The distance between the rim B2 of the back spindle and the rim C
of the front spindle is regulated according to the thickness of the bobbin D by a
gauge screw passed through the bracket B at the back of the arm of the
bearing C.
The back end of the connecting rod is screw-threaded, and provided with a lock
nut to engage with the interiorly screw threaded front end of a rod D', having its
back end hinged to a lever D', rocking on two axle pins D³, carried by two arms pro-
jecting from the back end of the bearing bracket B. The front end of the lever D
is hinged to the upper end of a rod D, the lower end of which is hinged to a treadle D³
rocking on an axle pin carried by a bracket D at the back shown at Figures 1 and 14,
the rocking of the lever D2 is regulated by a screw and lock nut D7 carried by
a stud projecting from the back of the bracket B. The back spindle B¹ is caused to
revolve by the following means. Below the spindle a shaft E rocks in the bearing
bracket, and is kept in position by one end of a set screw E engaging with a groove
cut in the shaft shown at Figure 5, the back end of the shaft terminates in a lever E'
and carries a frame E³, secured to it by a set screw, the outer ends of the frame form
bearings in which the axle of a pulley E revolves. The lever E is hinged to the
upper end of a rod E' in two parts connected by a scrow and socket adjustment for
lengthening or shortening the rod as required, the lower end of the rod passes through
a hole in the treadle D' and is secured by lock nuts beneath it. When the treadle is
pressed down by the foot of the attendant the pulley E is raised into the position
shown at Figures 1, 4, 5, 7 and 9 pressing the endless driving belt A³ against the
back spindle B' and causing it to revolve. A spiral spring E' is hooked to the
treadle and to the underside of the platform A, this spring raises the treadle when not
pressed by the attendant and lowers the pulley E into the position shown at Figures 2
and 8 with the belt A2 quite clear of the back spindle leaving it stationary.
To ensure uniformity of tension of the thread while it is being wound on the
bobbin D I employ a tension apparatus shown at Figures 10, 11 and 12, constructed
as follows: Between the bearing bracket B and the left pulley A' a bracket F is
secured to the platform, the sides form bearings for the axle of a cam F¹ upon which
a swing frame F2 rests, the back end rocking on an axle pin F³ in the back of the
brackets. The front of the frame has three deflecting pins projecting from it,
numbered 2, 4 and 6 which lie within slots in a plate F* secured to the front of the
bracket F, the plato F4 is provided with fixed projecting pins numbered 1, 3, 5, 7
and 8, and with seven retaining guide wires, each numbered 9, which keep the
thread G in line with the bobbin D during the process of winding.
The right end of the axle of the cam carries a slotted pointer F by which the
cam F may be adjusted to lower or raise the swing frame F2; above the pointer
the bracket F is provided with an index plate F numbered 1 to 12. The pointer
may be secured in any desired position by means of a wing nut F fitting on a screw
threaded pin projecting from the side of the bracket, and through the slot in the
pointer. The movements of the cam F¹ being coincident with the pointer, if the
latter is adjusted towards the front of the machine, the swing frame F will be
lowered, causing the deflecting pins 2, 4 and 6 to press the thread G down between
the fixed pins 1, 3, 5 and 7, and thereby increase the tension of the thread. By
adjusting the pointer towards the back of the machine, the frame F³, and deflecting
pins 2, and 6 will be raised by the cam F1, and reduce the tension.
The index figures show the amount of deflection and tension of the thread and the

page_text: necessary uniformity is thus obtained as each succeeding brass bobbin D has the thread
wound upon it.
The thread G which is passed over the fixed pins 1, 3, 5 and 7 under 8, and under
the deflecting pins 2, 4 and 6 is taken from a wooden bobbin G' fitting on a wire
secured in the floor beneath the machine.
The combined movements of the machine are as follows:-By pressing down the
treadle D the arm of the tubular bearing C is moved up to the gauge screw (10
placing the rim of the front spindle C₁the desired distance apart from the rim B
of the back spindle B¹, the bobbin D being between them. The lowering of the
treadle also raises the pulley E' over which the belt A2 passes pressing the belt onto
the back spindle B₁ and causing it to revolve, carrying the brass bobbin D and the
front spindle C with it. The lowering of the treadle also places the lower end of the
lever D onto the stop screw D' and draws the collar Ca of the rod C away from
the face of the swivelled bearing C thus compressing the spring (and lifting the
rod D' a little above the centres of the axle pins D³ on which the lever D' rocks, it is
easily kept in position during work.
The compression of the spring (" securing uniformity of support to the brass bobbin
during the process of winding.
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 1
claim is :-
The construction and employment of improved machines for winding threads on
brass bobbins used in lace machines, substantially as described and illustrated in the
drawings annexed.
Dated this Tenth day of December 1890.
H. W. GOUGH, C.E.,
1
Agent.