Year: 1886

page_text: Date of Application, 22nd May, 1886.
Complete Left, 22nd Feb., 1887.
Complete Accepted, 25th Mar., 1887.
I HENRY LEFEBER of 313 Vine Street, Philadelphia, in the state of Pennsylvania,
United States of America, Manufacturer, do hereby declare the nature of this
invention to be as follows:-
My Invention has for its object to provide a simple, inexpensive and efficient device
for winding the bobbins of sewing and other machines while the machine is at work,
and without requiring the attention of the operator further than to place the bobbin
in the winder and push a frame or lever toward the machine fly wheel, the bobbins
stopping automatically when they are filled.
The invention consists in certain novel features of construction and combinations of
parts of the bobbin winder; all as hereinafter fully set forth.
I will describe the invention as applied to a sewing machine.
A forked frame or lever, which carries the bobbin and its driving wheel, is pivoted
at its lower end, to the outer end of an arm or case which is held to the sewing
machine arin, so that the bobbin driving wheel, may be brought into contact with the
fly wheel of the sewing machine.
The revolving head on the shaft of the bobbin driving wheel has no end wise
movement, but the opposite head has endwise movement and is forced toward the first
head by a spring, to hold the bobbins in the frame to be wound with thread
from a spool.
The arm or case above referred to is recessed to accomodate the inner end of a trip
lever which is pivoted to the arm and extends outward and carries at its outer end a
plate which is pressed upward against the thread being wound on the bobbin by a
spring, pressing downward on the inner end or short arm of the lever.
Below the trip lever is fitted so as to move endwise, a rod, which passes freely
through the forked frame or lever or between the pivot lugs thereof and has a head
outside of the frame, and a spring fitted at the inner end of the said rod, forces it
outward when a stop lug on the rod is no longer held back by the engagement with it
of the back end of the trip lever.
The thread guide or arin, over which the thread passes from tension discs, mounted
on the end of an arm of the forked frame, to the bobbin may be attached to the inner

page_text: right hand face. of the frame, when the sewing machine fly wheel revolves toward the
operator, the hobbin and its driving wheel then rotating the other way and when the
fly wheel of a sewing machine runs in the opposite direction to that above indicated,
the thread guide will be attached at the front face and left hand end of the forked
frame, holes being provided to receive the attaching screws which hold the thread
guide to place, and in this instance the bobbin and its driving wheel will rotate in the
opposite direction.
It is evident that with this reversible thread guide, the bobbin winder is adapted for
use with sewing machines whose fly wheels rotate either toward or from the operator.
A set screw threaded into a depending lug of the arm or case may be turned in
more or less after the holding screw is loosened or turned out a little so as to swing
the outer end of the arm, upward to carry the bobbin driving wheel, inward bodily
when in operating position against the sewing machine fly wheel, and whereby wear
of the bobbin driving wheel may be taken up, at any time and its frictional contact
with the fly wheel be accurately regulated.
The operation of the bobbin winder is as follows:-
When the empty bobbin is adjusted in position between the heads with the thread
caught in it, the forked frame will be pressed inward and when the bobbing driving
wheel strikes the sewing machine fly wheel, the sliding rod will be pushed inward by
contact of the frame with a shoulder on the rod and the back end of the trip lever
will spring down in front of the lug on the rod and hold the bobbin driving wheel
against the machine fly wheel and when the thread passing over the guide to the
bobbin, fills the latter to the required "extent, the plate which bears on the thread will
be pressed downward by the thread to lift the back end of the trip lever and release
the rod which then will be forced outward by its spring and its shoulder will push or
swing the forked frame outward and carry the bobbin driving wheel away from the
fly wheel, and the pressure or friction of the lever plate, on the bobbin thread will
instantly stop the rotation of the filled bobbin.
It is obvious that the filled bobbin is stopped automatically, hence it only is
necessary for the operator to insert the bobbin in the winder and push the frame
inward, and the bobbin will be wound and stopped while the sewing machine is at
work, hence, little or no time of the operator will be lost in winding the bobbins ; and
bobbins thus wound, hold about double the quantity of thread they contain when
wound by hand.
The herein described bobbin winder may be employed for filling bobbins to be used
in silk weaving or in knitting various fibrous yarns, or for winding the wire coils of
electro magnets or for other analogous uses, as will readily be understood.
H. LEFEBER.
By A. M. & Wm. Clark,
53, Chancery Lane, London,
Patent Agents.

page_text: Improvements in Bobbin Winders.
I HENRY LEFEBER of Philadelphia in the County of Philadelphia and State of
Pennsylvania United States of America, 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 has for its object to provide a simple, inexpensive, and efficient
device for winding the bobbins of sewing machines while the machine is at work and
without requiring the attention of the operator further than to place the bobbin in the
winder and push a frame or lever toward the sewing machine fly wheel, and whereby
the time of the operator will be economized as very little interruption of the sewing
is necessary to wind the bobbins which stop rotating automatically when they
are filled.
The Invention consists in certain novel features of construction and combinations of
parts of the bobbin winder, all as hereinafter fully set forth.
Reference is to be had to the accompanying drawings forming a part of this
Specification in which Figure 1 is a vertical sectional elevation of my improved bobbin
winder and adjacent parts of a sewing machine to which it is attached. Figure 2 is a
front view of the winder, partly sectional, and with the spool post and spool removed,
and figure 3 is a plan view of the winder partly broken away and in section.
Similar letters of reference indicate corresponding parts in all the figures.
The forked frame or lever A, which carries the bobbin B and its driving wheel C, is
pivoted at its lower end by a pin a to the outer end of an arm or case D which is
held, by a screw d, to the frame or arm E of the sewing machine and so that the
bobbin driving wheel C may be brought into contact with the fly wheel F of the.
sewing machine. The revolving head on the shaft of the driving wheel C has no
endwise movement, but the opposite head b' has end wise movement and is forced
forward or toward head b by a spring to hold the hobbins in the frame A to be
wound with thread passing from the spool G which is placed on a pin g¹ fixed to the
removable cover d¹ of the arm D. The arm D is recessed to accomodate the inner end
of a trip lever H which is pivoted to the arm on a pin 4 and extends outward, and
carries at its outer end a plate h¹ which is pressed upward against the thread being
wound on the bobbin by a spring 2 held on a pin h³ in arm D and pressing downward
on the inner end or short arm of the lever. Below the lever H is fitted, so as to move
end wise, the rod I which passes freely through the frame A or between the pivot lugs
thereof, and has a head i outside of the frame, and a spring fitted at the inner end

page_text: of the rod I forces it outward when a stop lug on the rod is no longer held back by
the engagement with it of the back end of the lever H (see figure 1).
The thread guide or arm J, over which the thread passes from the tension
discs K K¹ mounted on the end of the arm A¹ of frame A to the bobbin B, may be
attached to the inner right hand face of the frame A, (as in figure 1, and in full lines
in figure 3,) when the sewing machine fly wheel F revolves towards the operator or in
direction of the arrow 1 in figure 1, the hobbin B and its driving wheel C then
rotating the other way or in direction of the arrow 2 in figure 1; and when the fly
wheel of a sewing machine runs in the opposite direction to that above indicated,
the thread guide J will be attached at the front face and left hand end of the frame A,
holes being provided at a¹ to receive the attaching screws which hold the thread
guide to place, and in this instance the bobbin and its driving wheel will rotate in the
opposite direction to that indicated by the arrow 2, as will readily be understood.
It is evident, that with this reversible thread guide J, the bobbin winder is adapted
for use with sewing machines whose fly wheels rotate either toward or from the
operator.
A set screw L, threaded into a depending lug of the arm or case D, may be
turned in more or less after the holding screw d is loosened or turned out a little, so
as to swing the outer end of arm D upward to carry the bobbin driving wheel C
inward bodily when in operating position against the sewing machine fly wheel, and
whereby wear of the driving wheel C may be taken up at any time, and its frictional
contact with the fly wheel F be accurately regulated.
The operation of the bobbin winder is as follows; When the empty bobbin is
adjusted in the heads with the thread g caught in it, the frame A will be pressed
inward and when the bobbin driving wheel C strikes the sewing machine fly wheel F,
the rod I will be pushed inward by contact of the frame A with the shoulder ³ of the
rod and the back end of lever H will spring down in front of the lug as in figure 1
to hold the wheel C to wheel F, and when the thread passing over the guide J to the
bobbin fills the latter to the required extent, the plate which bears on the thread
will be pressed downward by the thread to lift the back end of lever H and.release
the rod I which then will be forced outward by the spring, and its shoulder will
push or swing the frame A outward and carry the driving wheel C away from the
Hy wheel F, and the pressure or friction of the lever plate on the hobbin thread will
instantly stop the rotation of the filled bobbin.
It is obvious that the filled bobbin is stopped automatically hence it is only
necessary for the operator to insert the bobbin in the winder and push the frame A
inward, and the bobbin will be wound and stopped while the sewing machine is at
work, hence little or no time of the operator will be lost in winding the bobbins ; and
bobbins thus wound hold about double the quantity of thread they contain when wound
by hand. The herein-described bobbin winder may be employed for filling bobbins to
be used in silk-weaving, or in knitting various fibrous yarns, or for winding the wire
coils of electro magnets, or for other analogous uses, as will readily be understood.
Having now particularly described and ascertained the nature of the said Invention,
and in what manner the same is to be performed, I declare that what I claim is ;
1. The combination, in a lobbin winder of the frame or lever A carrying the
friction wheel C and bobbin holding devices, the arm D to which frame A is pivoted
at a, the lever H pivoted in arm D and provided with a plate h¹ adapted to bear on
the bobbin thread, a spring h² holding plate to the bobbin, and a rod I having a
stop lug and a shoulder and a spring forcing the rod I and frame A outward,
substantially as herein set forth.
2. In bobbin winders, the combination with the arm D carrying the lever H and
rod I and the frame A carrying the friction wheel and bobbin holding devices
substantially as specified, of an attaching screw d passing freely through the lug 2 of
arm D into the sewing machine frame E and a screw L threaded into lug d² and
bearing against said frame E, substantially as and for the purposes herein set forth.

page_text: 3. In bobbin winders, the frame or lever A provided with holes as at a¹ at opposite
faces and near the opposite journals which support the bobbin, in combination with a
reversible thread guide J and fastening pins or screws substantially as described for
the purpose set forth.
4. The combination, in a bobbin winder, of the frame or lever A carrying the
friction wheel and bobbin holding devices as at 66, the arm D to which frame A is
pivoted at lever H pivoted in arm D and having a plate h¹ adapted to the bobbin
threads, a rod I having a stop lug and shoulder a spring forcing the rod I and
frame A outward, a spool post g¹ on arm D, an arm A' on frame A carrying a tension
device, and fastening and adjusting screws d, L, substantially as shewn and described,
and for the purposes herein set forth.
H. LEFEBER.
By A. M. & Wm. Clark,
.53, Chancery Lane, London,
Patent Agents.