Improvements in or relating to Embroidery Machines.
Year: 1894

page_text: Date of Application. 10th Sept., 1894
'Complete Specification Left, 10th June, 1895-Accepted, 20th July, 1895
Improvements in or relating to Embroidery Machines.
We, HARRY CECIL. SHELDON of 63 Long Row, in the Borough of Nottingham,
Engineer, and WILLIAM LOCKWOOD of Pilcher Gate, in the Borough of
Nottingham, Lace Manufacturer, do hereby declare. the nature of this invention to
be, as follows:-
This invention relates more particularly to improvements in cording guides
employed in multiple embroidery machines, described in the Specifications of
Letters Patent No. 8669 of 4th June 1890, 11770 of 28th July 1890, and 9760 of
June 9th 1891 for twisting two or more strands together to form a single cord and
at the same time passing them round the needle thread so that one or more strands
engage therewith and, the, cord is simultaneously secured to the tissue.
In carrying out this invention each strand is carried by an independent spool
mounted on a pin secured to a frame, which is pivotted so as to be capable of
rotating on an axis parallel or inclined to the axis of rotation of the guide.
Each frame is pivotted at the end furthest from the tissue in the end of an arm
or extension of a boss which latter is secured, to the end of a spindle carried in a
bracket bearing secured to a longitudinal bar. This spindle is hollow and forms
a bearing for the needle bar which is also hollow so as to allow of the passage of
the needle thread.
The frames at the end nearest the tissue are pivotted in a plate carried by a
stay secured to the boss herein before referred to, and these pivots are tubular or
formed with openings through which the strands from the spools may be passed
so as to act as guides and carry the strands round the needle thread and round
each other.
A projection or nose is secured on the plate concentric with the axis of rotation
of the guide, and it is provided with a central opening for the passage of the needle
and needle thread, and on the exterior with grooves to receive the strands and
assist in laying them in their proper position.
The hollow spindles of each guide are driven preferably by a longitudinal_shaft
and belical toothed wheels as described in the Specifications of Letters Patent
hereinbefore referred to.
The spools rotate with their carrying frames round the needle and needle thread and.
thus twist. the strands, together. and also round the needle thread, but to prevent the
individual strands from being twisted or untwisted by this action it may be
counteracted by actuating the frames by the following epicyclic arrangement of
toothed wheels.
A toothed wheel secured to the pivots of each frame engages with an inter-
mediate idle wheel pivotted to the corresponding arm or extension of the boss, each
of which in turn engages with a toothed wheel concentric with and mounted on the
spindle. This wheel is the dead wheel of the train and is prevented from turning with
the spindle by an extension of the boss of the wheel engaging with a corresponding
recess in the bracket bearing.
With this arrangement if the wheels.secured to the pivots of each framing are
equal to the dead wheel the spools will not rotate about their own axis but, retain
a position which is parallel to the same plane at every part.of.their movement.

page_text: Various well-known mechanical equivalents for the epicyclic gearing may be
employed for obtaining the same result, the gearing may also be arranged to give
a twist to the strand the reverse of that of the cord.
Dated this 10th day of September 1894.
Improvements in or relating to Embroidery Machines.
We, HARRY CECIL SHELDON, of 63 Long Row, Engineer, and WILLIAM
LOCKWOOD, of Pilcher Gate, Lace Manufacturer, both in the Borough of
Nottingham, 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 more particularly to improvements in cording guides
employed in multiple embroidery machines, such as described in the Specifications
of Letters Patent No. 8669 of 4th June 1890, No. 11770 of 28th July 1890, and
No. 9760 of 9th June 1891, for twisting two or more strands together to form a
single cord and at the same time passing them round the needle thread so that one
or more strands engage therewith and the cord is simultaneously secured to the
tissue or fabric.
It will be best understood by reference to the accompanying drawings, in which
Fig. 1. is a side elevation, and
Fig. 2. a plan of a cording guide constructed according to our invention.
Figs. 3, 4 and 5 are views showing modifications in the construction.
Like letters indicate like parts throughout the drawings.
In carrying out this invention the strands A are carried by separate spools A¹ A¹
each carried by a pin A' secured to swinging frames B B. Each frame B is
pivotted at B in the end of an arm C of the boss Cand at the end B' they are
pivotted in a plate D carried by a stay or extension D' secured also to the
boss C¹.
The pivots B of the frames B are made tubular so that the strands A may be
passed through them, and they thus act as guides to the strands, and carry them
round the needle thread.
A projection or nose E secured to the plate D and shaped as shown also acts as
a further guide to the strands and assists in laying them in their proper positions.
This nose E is formed with a central opening for the passage of the needle and
needle thread..
The boss C¹ is secured to the end of a spindle F carried in a bracket F' which
is adjustable on a longitudinal bar G preferably of the section shown. The
spindle F is hollow and forms a bearing for the needle bar H which is also hollow
so as to allow of the passage of the needle thread.
The spindle F is driven by a longitudinal shaft I and helical toothed
wheels 12 as described in the Specification of Letters Patent No. 8669 of 1890
hereinbefore referred to.
The spools A¹ and frames Brotate round the needle J and needle thread and
thus twist the strands A together and also round the needle thread but to 'prevent
the individual strands from being twisted or untwisted by this action it may be
counteracted by actuating the frames B by the following epicyclic arrangement of
toothed wheels.
A toothed wheel K secured to each pivot B₁ of the frames B
engages with an

page_text: intermediate idle wheel K pivotted to its corresponding arm C which, in turn,
engages with a toothed wheel L concentric with and carried by the spindle F. The
wheel L is the dead wheel of the train and is prevented from turning with the
spindle F and guide, by an extension L' of its boss fitting into a corresponding
recess in the fixed bracket F
With this arrangement if the wheels K and L are equal the spools A' will be
rotated around the needle bar H but their axes will always be parallel with the
same plane at every part of their revolution, said plane in the example illustrated
being a vertical one.
Various well known mechanical equivalents for the epicyclic gearing may be
employed for obtaining the same result. The number of strands A may also be
increased by increasing the number of spools A' and frames B, the epicyclic
gearing may also be arranged to give a twist to the strand, the reverse of that of
the cord.
In order that the frames B B may be removed and interchanged the bearings in
the ends of the arms C may be partly cut away as shown in Fig. 3, and each
pivot B' he held in its place by a spring M secured to the boss C. The plate D
is also formed with lateral openings N (Fig. 5) extending from the bearings of the
pivots B, through which openings the strands A may be passed when the frame is.
removed or replaced.
To prevent the strauds A from being wound round the nose or extension E, a
fence may be formed preferably by wires O, O, (Figs. 4 & 5) extending from near
the end of the nose E to the plate D on each side as shown.
Having now particularly described and ascertained the nature of the said inven-.
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. An embroidery machine cording guide in which the cord spool or its
equivalent moves round the needle thread or needle bar without at the same
time rotating about itself and thereby twisting or untwisting the cord substantially
as described.
2. An embroidery machine cording guide in which the cord spool or its.
equivalent moves round the needle thread or needle bar and rotates in the reverse
direction about itself so as to twist the cord in the reverse direction to that in which
it is laid round the needle thread substantially as described.
3. An embroidery machine cording guide for twisting two or more strands
together to form a cord in which the strand carrying spools or their equivalent
move round the needle thread or needle bar without rotating about themselves and
thereby twisting or untwisting the strands substantially as described.
4. In an embroidery machine cording guide the combination with a spool for
carrying the cord of a pivotted frame such as B for carrying the spool and acting
as a guide for the cord or strands substantially as described and illustrated in the
accompanying drawings.
5. In an embroidery machine cording guide the combination with a spool for
carrying the cord or strand of a pivotted frame such as B epicyclic train of
toothed wheels such as K K and L for operating the said frame substantially as
described and illustrated in the accompanying drawings.
6. In an embroidery machine cording guide the combination with a spool for
carrying the cord or strand and pivotted frame such as B of a projection nose or
needle or thread guide such as E substantially as described and illustrated in the
accompanying drawings.
7. In an embroidery machine cording guide the combination with the projection
nose or needle or thread guide E of a fence such as that provided by the wires 0, 0,
for preventing the cord or strand from winding round the nose substantially as
described and illustrated in the accompanying drawings.
8. The combination and arrangement of parts constituting the complete cording.

page_text: guide substantially as herein described and illustrated in the accompanying
drawings.
Dated this 8th day of June 1895.
HARRY CECIL SHELDON.
WILLIAM LOCKWOOD.
Boult & Wade,
Agents for the Applicants.