IMPROVEMENTS IN MACHINERY FOR WINDING YARN
Year: 1885

page_text: I BENJAMIN ALFRED DOBSON, Engineer, of West Field, Bolton in the County
of Lancaster, do hereby declare the nature of said Invention for IMPROVEMENTS
IN MACHINERY FOR WINDING YARN, to be as follows:-
My invention relates to machines for winding yarn and consists chiefly in an
improved combination and arrangement of parts, my object being to stop the
frame automatically when the yarn breaks or fails.
«
The yarn to be wound passes over the drag-board as usual, or through the
improved drag apparatus hereinafter described and through needles carried in an
oscillating plate or box and connected with a stop motion" to a traversing rod
on to the bobbin which is carried in a movable bracket pivoted to one end of a
stationary bracket secured to a rail of the machine: the other end of this stationary
bracket carries an intermediate roller which when the frame is at work lies in
contact with the driving drum.
The brake block or wedge rests under the intermediate roller and is connected
to a rod or spindle and guided by a slide or groove in the stationary bracket or
otherwise there is a compressed spring on this spindle which has its other
bearing in the front part of the stationary bracket through which it is free to
slide the starting handle or lever is secured to the spindle near the front end.
The oscillating plate or needle box is free to swing in a bracket secured to the
front rail of the machine and there is a notched tail piece or catch on the needle
box which rests under and is locked by a projection on the starting handle until
the yarn breaks or fails: the wing or wiper shaft revolves in suitable bearings
below or near the needle box.
When a thread breaks or fails its needle falls and is caught by the revolving
wing shaft which moves the oscillating needle box and its tail piece thus releasing
the brake spindle, the spring of which causes the spindle and wedge to spring back
and raise the intermediate roller and stop the bobbin.
We suspend from the pivoted bracket which carries the bobbin a weighted wire
in order to put extra friction on the yarn when the yarn breaks and the end is
lost, the operative raises the bracket and bobbin high enough to allow the wire to
rest upon the frame and support the bracket, thus leaving the operative both bands
at liberty while piecing the ends of the broken thread.
The act of moving the starting handle releases the weighted wire and re-starts
the bobbin
0

page_text: The needles are or may be supported in such a manner that their upper ends fall
away from the drag-board when a thread breaks and the motion acts. If I employ
a needle with knees I cut the slot in which it is confined at such an angle that
the needle when suspended by the thread hangs free from contact with the front
or back.
The improved drag apparatus is intended to give more facility for regulating the
tension on the threads and also for piecing up the broken threads and is specially
adapted for fine yarns of delicate quality and it consists of two bars or wires highly
polished one of which is adjustable with respect to the position of the other: both
are placed the full length of the machine where the threads pass. The upper bar
may be adjustable and carries tension wires swinging on it the length necessary
for each motion: the lever on which the tension wire is fixed is prolonged at the
upper end and a wire attached to the sliding brake.
When the thread comes from the cops or bobbins it passes over the first long
bar or wire and under the tension bar or wire and again over the upper adjustable
wire and down through the eye of the stop motion needle to the winding drum or
bobbin.
.
When a thread breaks and the brake slides to stop the intermediate roller the
wire attached to the tension wire will change its position and bring the three wires
into line, or nearly so, whereby the piecing is facilitated.
By moving the top bar or wire the angular position of all three is altered and
thus the amount of tension can be regulated.

page_text: I BENJAMIN ALFRED DOBSON, Engineer, of West Field, Bolton, in the County
of Lancaster, do hereby declare the nature of said invention for IMPROVEMENTS
IN MACHINERY FOR WINDING YARN, and in what manner. the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
My invention relates to machines for winding yarn and consists chiefly in an
improved combination and arrangement of parts, my object being to stop the
frame automatically when the yarn breaks or fails.
The yarn to be wound passes over the drag board as usual, or through the
improved drag apparatus hereinafter described and through needles carried in an
oscillating plate or box and connected with a "stop motion" to a traversing rod
on to the bobbin which is carried in a movable bracket pivoted to one end of a
stationary bracket secured to a rail of the machine; the other end of this stationary
bracket carries an intermediate roller which when the frame is at work lies in
contact with the driving drum.
•
The brake block or wedge rests under the intermediate roller and is connected
to a rod or spindle and guided by a slide or groove in the stationary bracket or
otherwise; there is a compressed spring on this spindle which has its other bearing
in the front part of the stationary bracket, through which it is free to slide; the
starting handle or lever is secured to the spindle near the front end.
The oscillating plate or needle box is free to swing in a bracket secured to the
front rail of the machine and there is a notched tail piece or catch on the needle
box which rests under and is locked by a projection on the starting handle until
the yarn breaks or fails; the wing or wiper shaft revolves in suitable bearings
below or near the needle box.
When a thread breaks or fails its needle falls and is caught by the revolving
wing shaft which moves the oscillating needle box and its tail piece thus releasing
the brake spindle, the spring of which causes the spindle and wedge to spring back
and raise the intermediate roller and stop the bobbin.
I suspend from the pivoted bracket which carries the bobbin a weighted wire
in order to put extra friction on the yarn; when the yarn breaks and the end is
lost, the operative raises the bracket and bobbin high enough to allow the wire
to rest upon the frame and support the bracket thus leaving the operative both
hands at liberty while piecing the ends of the broken thread. The act of moving
the starting handle releases the weighted wire and re-starts the bobbin.
The needles are or may be supported in such a manner that their upper ends
fall away from the drag board when a thread breaks and the motion acts.
If I employ a needle with knees I cut the slot in which it is confined at such an
angle that the needle when suspended by the thread hangs free from contact with
the front or back.
The improved drag apparatus is intended to give more facility for regulating the
tension on the threads and also for piecing up the broken threads and is specially

page_text: adapted for fine yarns of delicate quality and it consists of two bars or wires
highly polished one of which is adjustable with respect to the position of the other;
both are placed the full length of the machine where the threads pass.
The upper
bar may be adjustable and carries tension wires swinging on it (the length neces-
sary for each motion) the tension wire which is in one piece is prolonged at the
upper end and a wire attached to the sliding brake.
When the thread comes from the cops or bobbins it passes over the first long
adjustable bar or wire and under the tension bar or wire and again over the upper
wire and down through the eye of the stop motion needle to the winding drum or
bobbin.
When a thread breaks and the brake slides to stop the intermediate roller, the
wire attached to the tension wire will change its position and bring the three wires
into line or nearly so whereby the piecing is facilitated.
By moving the top bar or wire the angular position of all three is altered and
thus the amount of tension can be regulated.
And in order that my Invention may be fully understood and readily carried
into effect I will describe the accompanying two Sheets of Drawings, reference
.being had to the figures and letters marked thereon.
Figure 1 is an elevation and Fig. 2 a plan of part of a machine for winding yarn
to which my improved drag apparatus and other improvements are applied.
a is the driving drum mounted on the shaft a¹; b is the intermediate roller
supported in open bearings in the stationary bracket c which is bolted to the
rail ; to the other end of the bracket c is pivoted one end of the movable
bracket e which carries the bobbin f and from which is suspended the weighted
wire e. The brake block or wedge g is made with or attached to the rod or
spindle g which passes through the bracket c and is supported by it as well as by
the brake block g which is fitted in a groove or slide c¹ in the bracket c; a spiral
spring his coiled upon the spindle g₁ and compressed between one side of the
bracket c and the brake block y; secured to the front end of the spindle g1 by a
screw i is the starting handle; which has a projection j¹ engaging with a projection
or tail piece k¹ on the oscillating needle box k. The needle box ke is free to swing
on pivots in the brackets secured to the front rail m; n are the needles and
o the wing or wiper shaft revolving in suitable bearings in the brackets / below
the needle box. The yarn passes from the cops or bobbins through guides p over
the first long bar or drag wire r which is supported on an adjusting screw in a
slotted bracket s at each side of the machine, the other end of the bracket & which
is secured to the front rail m carries the second long bar or wire t. The bars r
and t both extend the full width of the machine and the bar t carries a tension
wire u for each stop motion, one such tension wire u only is shown swinging on
the bart by means of twists or loops in the wire, and with a prolongation u¹ con-
nected by a wire v to the brake block g to which the wire is secured by a set
screw W. The bar r may be raised or lowered by the adjusting screws 7 and the
position of the tension wires u may be adjusted by means of the wire v and the set
screw w so as to alter the relative positions of the three wires r, t and u and
regulate the amount of tension on the yarn. The yarn passes from the cops or
bobbins through the guides p over the bar r, under the tension wire u over the
second bar t, down through the eyes of the needles n, over guide pulleys (not
shown) and so to the bobbin f.
When a thread breaks its needle n falls and is struck by the revolving wing
shaft o which moves the oscillating needle box k and withdraws its tail piece k¹
from under the projection j¹ thus unlatching the starting handle j, releasing the
spindle gl and allowing the springh to shoot the spindle and wedge g back, thereby
raising the intermediate roller b out of contact with the driving drum a and so
stopping the bobbin f. When the brake block g slides, the wire v moving with it
causes the tension wire u to turn up into the position indicated by dotted lines,
Fig. 1, thus bringing the three wires r, t and u into line or nearly so and leaving the
yarn slack thereby facilitating the piecing up.

page_text: When an end is lost the operative raises the bracket e and bobbin f sufficiently
to allow the knee e in the wire e¹ to rest upon the bracket c and support the
bracket e and thus leave the operative both hands free for piecing the ends of the
broken thread. When the spindle g¹ is drawn back by means of the starting
handlej to re-start the intermediate roller b, the back of the wedge g comes
against the knee e³, knocks the knee e² off the bracket c and re-starts the bobbin.
In place of using the improved drag apparatus herein shown and described the
yarn may pass from the cops or bobbins over a drag board directly to the detector
needles n and thence to the bobbin f.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
1. In machinery for winding yarn, the improved construction, combination,
and general arrangement of parts, substantially as and for the purposes herein
described and as illustrated by the Drawings annexed.
2. The improved drag apparatus consisting of the two long bars or wires r
and t, one or both of which is or may be adjustable in combination with the tension
wires connected and moving with the sliding brake block g, substantially in the
manner and for the purposes herein set forth.
.
3. The combination with the movable bracket e which carries the bobbin f, of
the weighted wire e¹ bent at e³ and e³ and the sliding brake block 9, substantially
as and for the purposes described and as shown.
H. B. BARLOW,
Agent for Applicant,
4, Mansfield Chambers,
17, St. Ann's Square, Manchester.