Improvements in Embroidery Machines.
Year: 1890

page_text: Date of Application, 4th June, 1890
Complete Specification Left, 4th Mar., 1891-Accepted, 30th May, 1891
PROVISIONAL SPECIFICATION.
Improvements in Embroidery Machines.
I, RUDOLPH WEISS of 139 Noel Street, Nottingham, Engineer, do hereby
declare the nature of this invention to be as follows:-
This is an apparatus which is to be used in combination with embroidery
machines in which series of needles produce groups of designs on a tissue which is
stretched on a frame, which frame is moved by a pantograph or otherwise. The
apparatus has for purpose to enable the said machine to do "cording" or "braiding."
Each needle is held in a needle bar 1 which slides to and from the tissue in
brackets 2 fastened to the transverse bar 3 which is part of or fastened to the
framework. The needle bars I are fastened or pivoted to the transverse bar 4
which is moved to and from the tissue in any of the known manners. The needle
thread passes through bar 4 and bracket 2 to the eye of the needle. The bracket 2
serves as axle on which can turn bevel wheel 5 which has a long boss 5¹ on which
are arms 6 and 61 supporting a pin 7. On this pin 7 is hung the spool which holds
the cord or tape. The boss 51 has further an arm 8 (which serves to guide the
cord) and projections or arms 8' and 811 which hold the disc 8111 which has a
central hole for the needle and an excentric hole for the cord or tape. The wheel 5
with its boss 5 cord spool and disc 8111 are turned round the bracket 2 (in which
the needle bar moves centrally) by means of bevel wheels 9 and 91 and 10 which
latter is fast to transverse shaft 11. This shaft 11 is turned in preference by a
camtruck 20 on rod 16 engaging in a cam groove 20¹ of cam 18 on the main-
shaft 19 of the machine. The rod 16 carries the clawker 17 which engages with
ratchet wheel 15. This wheel 15 is fastened to the spur wheel 13 so that they
both turn on the axle 14 which is fixed to the framework at one end of the
machine. The spur wheel 13 engages with the spur wheel 12 which being fixed to
the transverse shaft 11 produces such revolving of the cords or tapes round the
needle thread as is determined by the cut of the cam groove 20.
The boss 5 or its arms 6. 8. 8¹ 8" or disc 8111 may be attached to a tension
apparatus which will act upon the cord or tape differently during different parts of
the rotation or during the rest of the cord spool, by such tension apparatus coming
in contact with a shield or cam surface fixed onto bracket 2.
The rack bar
The sleeve or boss of bevel wheel 5 may be turned (instead of by the transverse
shaft 11 and connecting wheels) by spur wheels being fastened to the boss 51
instead of the bevel wheel and a rack bar actuating the former.
goes in and out of gear and returns to a stop at the proper times. The movement
may also be effected by an endless chain or belt engaging with a spur wheel or a
wheel with pegs on the sleeve or boss 5'.
More (or less) than one complete revolution of the cord spool round the needle
thread may be given for example, 2 revolutions may be advisable if I want to wind
a thin narrow braid round the needle thread for the purpose of so forming what
will appear to be à cord.
The needle bar itself. may be used as the axle round which the boss 5¹ turns (to
the exclusion of the tube part of bracket 2.
A thread tension device is attached to the boss 5¹; such apparatus is double and
serves two purposes. One part is a spring lever pressing on the periphery of the
cord spool or the cord itself and so giving weight to the cord. The other part
which is influenced by the cam shield on the bracket 2 is to keep the cord fast by
squeezing it and at other times to let it loose so that it may be drawn off.
Dated this 4th day of June 1890.

page_text: COMPLETE SPECIFICATION.
Improvements in Embroidery Machines.
I, RUDOLPH WEISS of 139 Noel Street, in the Borough of Nottingham,
Engineer, 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 "cording" or "braiding" apparatus
employed in embroidery machines in which series of needles are employed, each
needle producing a corresponding design on a tissue, secured to a frame, which
frame is moved by a pantograph or other means.
It will be best understood by reference to the accompanying drawings in which
Fig. 1 is a transverse section of part of a tier of needles showing cording
apparatus and tissue.
Fig. 2 is a plan of part of Fig. 1.
Fig. 3 is a vertical section taken centrally along one of the needle bars.
Figs. 4 and 5 are side elevations showing modifications partly in section and
Fig. 6 is a side elevation of apparatus actuating the longitudinal shaft 1.
The needle bars A are carried in brackets B secured to the rail C forming
part of the framing. The brackets are preferably formed with sleeves or bosses D
concentric with the needle bars and form bearings for the sleeves E of each cording
or braiding apparatus and around which they may turn or reciprocate as desired.
The sleeves E are provided with bevel wheels F gearing with wheels F¹ secured
on the upper end of shafts G carried by bearings G of the brackets B. Secured
to the lower ends of the shafts G are bevel wheels H gearing with bevel wheels H¹
secured on the longitudinal shaft I carried in bearings I¹ secured to the rail C, the
cording apparatus for each needle is thus simultaneously operated by the shaft I
and by this means the requisite motion may be communicated to the sleeves E of
each cording apparatus.
The sleeves E may be retained in position by rings D¹ screwed on or otherwise
secured to, the ends of the sleeves D; attached to the ends of the sleeves E are
sleeves or bosses El carrying thread guides J which may be extended to form
bearings for one end of the pins K carrying the cord or braid spools L; the other
end of the pins K being carried by brackets or arms K¹ secured to the sleeves E.
Tension may be applied to the cord or braid by a spring bearing on each spool L
or by cord L lying in a groove formed in one end of the spools, or the cord or
braid may be passed through a suitable tension device secured at any suitable part
of each cording or braiding apparatus.
The needle bars A may be fastened or pivotted in the usual manner to a longi-
tudinal bar which is moved to and from the tissue, or they may be connected by
links M pivotted to the needle bars at one of their ends and each provided at its
outer end with a fork M which engages with the longitudinal bar or with a lever
secured to and operated by a rocking shaft.
By this arrangement each needle bar may be removed so as to facilitate the
threading of the needles and without necessarily stopping the machine. Provision
is made for the passage of the needle thread Q by forming a longitudinal groove A¹
in the needle bar or in the needle bar bearing D.
In a modification shown in Fig. 4 the sleeves D forming bearings for the needle
bars A and the sleeves E of each cording apparatus are secured in a longitudinal
bar B secured to the rail C, motion is transmitted from the longitudinal shaft I to
the cording devices by means of skew-bevel wheels F2, F3 secured to the sleeves E
and the shaft I respectively.
In a second modification shown in Fig. 5 each of the sleeves D forming a
bearing for one of the needle bars A may be carried in bearings N N in a bracket O
or a longitudinal bar of a similar section secured to the rail C; the bearings are
preferably fitted with adjustable bushes P secured by nuts P₁ the skew bevel

page_text: wheel F is secured between the bearings N N to the sleeve D which in this case
carries the thread guide J and spool L the latter may also be of an increased
diameter and consequently of a greater capacity by reason of the reduced size of
the sleeve D and by cutting part of it away as shown.
In cording or braiding the cord or braid is placed in position by the guide J and
this may have more or less than one complete revolution round the needle thread
each stitch carrying the cord or braid and spool L with it; this movement may be
continued in the same direction for each stitch or reversed each stitch as required
according to the class of work, for example two revolutions may be advisable, if I
want to wind a narrow braid round the needle thread for the purpose of forming
what will appear to be a cord and the movement will have to be always in one
direction. In some cases when attaching a cord to the tissue a reciprocating
motion may be imparted to the thread guide so as to carry the cord first to one
side of the needle and then to the other, the cord being secured by the needle
thread in a well known manner.
The longitudinal shaft I see Fig. 6, may be actuated by a cam wheel R carried
on the main shaft R' operating through an anti-friction roller the lever S, the
lever S is connected by a link S to a lever T pivotted on a short shaft I' secured
to the framing U, the shaft I also carries ratchet wheel V and spur wheel V₁ con-
nected to each other the latter engaging with the wheel V2 secured on the end of
the shaft I. The lever T is provided with a pawl S engaging with the ratchet
wheel which it turns through a space regulated by the motion on the cam R,
the amount of motion imparted to the shaft I may also be varied by using wheels V1
and V of different ratio.
The shaft I may also be reciprocated by locking the lever T to the wheels V
and V1.
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 ;-
1. In an embroidery machine such as described the combination with a sleeve
bearing D for the needle bar A of a sleeve such as E carrying the spool L and
guide substantially as described and illustrated in the accompanying drawings.
2. In an embroidery machine such as described the combination with the shaft I
of the sleeve E carrying and operating a guide J and connecting mechanism such
as the gearing FFHH' substantially as described and illustrated in the
accompanying drawings.
3. In an embroidery machine such as described the combination with the needle
bar A of a forked link such as M. M' substantially as and for the purpose described
and illustrated in the accompanying drawings.
4. In an embroidery machine such as described the combination with the shaft I
of the sleeve E and skew gearing F³ substantially as described and illustrated
in the accompanying drawings.
5. In an embroidery machine such as described a sleeve such as D forming the
bearing for the needle bar A and carrying the guide J substantially as described
and illustrated in Figure 5 of the accompanying drawings.
6. In an embroidery machine such as described the combination with shaft I of
sleeve D carrying guide J and of skew gearing FF substantially as described
and illustrated in Figure 5 of the accompanying drawings.
7. In an embroidery machine such as described the combination with sleeves such
as D or E carrying guide J of shaft I ratchet wheel V pawl S2 and cam R
substantially as described and illustrated in the accompanying drawings.
Dated this 3rd day of March 1891.
RUDOLPH WEISS.
W. P. Thompson & Boult,
Agents for the Applicant.