Improvements in Perforating Devices for Shuttle Embroidery Machines.
Year: 1899

page_text: Date of Application (in United Kingdom), 20th June, 1899
Complete Specification Left, 20th Mar., 1900-Accepted, 21st Apr.,
1900
PROVISIONAL SPECIFICATION.
Improvements in Perforating Devices for Shuttle Embroidery
Machines.
We, THE STICKEREI FELDMÜHLE, vormals Loeb Schoenfeld & Co., of Rorschach
(St. Gallen), in the Republic of Switzerland, Manufacturers, do hereby declare
the nature of this invention to be as follows;-
In all the perforating devices at present employed for producing open work.
effects on shuttle embroidery machines the construction and principle of work-
ing are generally the same. The perforators are in most cases arranged beneath
the needle gauge in some constructions also above the same; the perforating.
apparatus may be mounted on the embroidering machine before or behind the
plane of the material and may be moved dependently or independently of the
needle bar. In any case however the embroidery machine must be put out of
action as regards the formation of stitches, when the perforators are to work.
The material frame must then be shifted, corresponding to the distance between
the needles and the perforator to such an extent that the latter can penetrate the
material at the places necessitated by the pattern. It is here that the great draw-
back of the thread feed arises; that is to say such an amount of thread must be
drawn off the thread bobbins and out of the shuttle as is necessary for allowing
the embroidery frame to move freely for the perforating and in the stitching
round of the perforated holes, which then follows, the thread drawn out does not
work under tension and produces loose places in the goods. With this feed of
thread the perforating consumes a deal of time and in many cases requires pre-
cisely as much time as the actual embroidery.
This invention has for its object to entirely remove the above mentioned draw-
backs as regards loss of production by the perforating and thread feeding, and
also the production of defective goods produced by the latter, by the work of
perforating being carried on simultaneously with the operation of the actual
embroidering, that is as desired during the formation of the stitches, without its
being necessary to stop the embroidery machine or the formation of stitches, and
without a special adjustment of the material for the perforator being necessary.
ID 077

page_text: For this object the perforator is given such a position as regards the needles
that the perforator point in the working position of the perforator is in immediate
proximity to the axis of the needle.
The object of the invention is shown as an example in the accompanying
drawings.
In Figures 1 and 2 the perforator 6 is screwed into a bar c at the side of the
needle a in close proximity thereto; which bar is moved by means of guides d.
It is consequently evident that the perforator can operate without interfering
with the needle embroidering. The perforator-6 is here formed as a tapering
pyramid one edge of which runs parallel to the needle.
In Figure the perforator b may stand at any suitable angle to the needle a
but always close to the same. It may be operated in such a way that it penetrates
in front of the needle to a given depth into the material f and rapidly again
withdraws so that the needle can unimpededly carry out its stitch.
In the form of construction shown in Figures 4 to 7 perforators of grooved or
cross shaped section are shown which allow of the perforator 6 being arranged
as close as possible to the needle a and being capable of working without affect-
ing the formation of the stitch.
$
Figure shows a preferable form of construction of a device for moving the
perforator. A grooved cam disc h is firmly mounted on the main shaft g of the
machine with which disc the roller engages whereby a lever k is moved, said
lever being pivotally attached by means of a bolt to the frame of the machine.
One arm of the lever is formed as a slide along which a link bar n is guided
on a slide piece m. The said rod acts in combination with a lever o, transverse
shaft 9. lever P and a connecting sleeve on the guide bars d of the perforator
bar c.
The forward and backward movement of the perforator 6 must thus take
place by the rotation of the disc h.
....
In order to ensure that this perforator movement shall each time correspond
with the desired size of hole, an adjusting or setting lever r is mounted on the
machine frame, a stud ton said lever engaging in a slot in the link bar n.
If the lever rr be placed against a contact piece l'of a sector e fixed to the machine
frame, the slide piece m will lie in the central point of the slide lever 'and
thus the perforator bar is stationary, whilst the lever itself moves. If however
the setting leverrr be adjusted against the contact piece 2 the slide piece m
moves correspondingly outwards in the slide of the lever k. By this means the
perforator bar c is moved against the material by the lever k more or less accord-
ing as the lever rr is adjusted more or less towards the stops 2 or 1. It remains
thus each time at the option of the embroiderer to stop the perforating device
each time during the stitching or to allow it to penetrate the material more or
less deeply corresponding to the adjustment of the lever rr.
The levers and s, in conjunction with a link bar connecting them serve. for
transmitting the movement to the lower row of perforators. The case will very
frequently arise in which in order to carry out several perforating operations
following one another at intervals, the perforator must always penetrate the
material to an equal depth. In this case the working of the arrangement de-
scribed for moving the perforator is simpler and more rational if the throwing
in and out of action of the perforator movement can take place without altering
the adjustment for the depth of the perforation. For this object the roller i
(Figures 8 and 9) of the grooved cam disc h may be adjustably arranged in the
side of the lever k.
When the perforating apparatus is to work the roller i is engaged in the
groove of the disc h by means of a suitable arrangement, (in this case for instance
a shaft with a lever y which engages on the pin of the roller is provided).
If the perforating apparatus is to be thrown out of action the roller is with-
drawn from the groove of the cam disc h, and its pin then enters a hole in a
fixing iron z, attached to the machine frame, in order to fix the apparatus in its
normal position.

page_text: Of course the throwing out of action of the perforator bar movement and its
regulation may be obtained by other known mechanical means.
Dated this 19th day of June 1899.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicants.
Improvements in Perforating Devices for Shuttle Embroidery.
Machines.
We, THE STICKEREI FELDMÜHLE, vormals Loeb Schoenfeld & Co., of Rorschach
(St. Gallen), in the Republic of Switzerland, Manufacturers, 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
In all the perforating devices at present employed for producing open work
effects on shuttle embroidery machines the construction and principle of work-
ing are generally the same. The perforators are in most cases arranged beneath
the needle gauge in some constructions also above the same; the perforating
apparatus may be mounted on the embroidering machine before or behind the
plane of the material and may be moved dependently or independently of the
needle bar: In any case however the embroidery machine must be put out of
action as regards the formation of stitches, when the perforators are to work.
The material frame must then be shifted, corresponding to the distance between
the needles and the perforator to such an extent that the latter can penetrate the
material at the places necessitated by the pattern. It is here that the great draw-
back of the thread feed arises; that is to say such an amount of thread must be
drawn off the thread bobbins and out of the shuttle as is necessary for allowing
the embroidery frame to move freely for the perforating and in the stitching
round of the perforated holes, which then follows, the thread drawn out does not
work under tension and produces loose places in the goods.
With this feed of
thread the perforating consumes a deal of time and in many cases requires pre-
cisely as much time as the actual embroidery.
This invention has for its object to entirely remove the above mentioned draw-
backs as regards loss of production by the perforating and thread feeding, and
also the production of defective goods produced by the latter, by the work of
perforating being carried on simultaneously with the operation of the actual
embroidering, that is as desired during the formation of the stitches, without its
being necessary to stop the embroidery machine or the formation of stitches, and
without a special adjustment of the material for the perforator being necessary..
For this object the perforator given such a position as regards' the needles
that the perforator point in the working position of the perforator is in immediate
proximity to the axis of the needle.
The object of the invention is shown as an example in the drawings accompany-
ing the Provisional Specification.
In Figures 1 and 2 the perforator is screwed into a bar e at the side of the
needle a in close proximity thereto, which bar is moved by means of guides d.
It is consequently evident that the perforator can operate without interfering
with the needle embroidering. The perforator 6 is here formed as a tapering
pyramid one edge of which runs parallel to the needle.
a
1...
In Figure 3 the perforator b may stand at any suitable angle to the needle a
but always close to the same. It may be operated in such a way that it penetrates
'

page_text: in front of the needle to a given depth into the material f and rapidly again
withdraws so that the needle can unimpededly carry out its stitch.
In the form of construction shown in Figures 4 to 7 perforators of grooved or
cross shaped section are shown which allow of the perforator being arranged
as close as possible to the needle a and being capable of working without affect-
ing the formation of the stitch.
Figure 7 shows a preferable form of construction of a device for moving the
perforator. A grooved cam disc h is firmly mounted on the main shaft g of the
machine with which disc the roller engages whereby a lever & is moved, said
lever being pivotally attached by means of a bolt to the frame of the machine.
One arm of the lever is formed as a slide along which a link bar n is guided
on a slide piece m.
The said rod acts in combination with a lever o, transverse
shaft lever ม and a connecting sleeve on the guide bars d of the perforator
The forward and backward movement of the perforator 6 must thus take
place by the rotation of the disc h.
bar c.
In order to ensure that this perforator movement shall each time correspond
with the desired size of hole, an adjusting or setting lever r r is mounted on the
machine frame, a stud t on said lever engaging in a slot u in the link bar n.
If the lever rr be placed against a contact piece of a sector v fixed to the machine
frame, the slide piece m will lie in the central point of the slide lever k and
thus the perforator bar is stationary, whilst the lever k itself moves. If however
the setting lever r r be adjusted against the contact piece 2 the slide piece m
moves correspondingly outwards in the slide of the lever k. By this means the
perforator bar c is moved against the material by the lever k more or less accord-
ing as the lever r r is adjusted more or less towards the stops 2 or 1. It remains
thus each time at the option of the embroiderer to stop the perforating device
each time during the stitching or to allow it to penetrate the material more or
less deeply corresponding to the adjustment of the lever rr.
The levers w and s, in conjunction with a link bar connecting them serve for
transmitting the movement to the lower row of perforators. The case will very
frequently arise in which in order to carry out several perforating operations
following one another at intervals, the perforator must always penetrate the
material to an equal depth. In this case the working of the arrangement de-
scribed for moving the perforator is simpler and more rational if the throwing
in and out of action of the perforator movement can take place without altering
the adjustment for the depth of the perforation. For this object the roller i
(Figures 8 and 9) the grooved cam disc h may be adjustably arranged in the
side of the lever k.
When the perforating apparatus is to work, the roller is engaged in the
groove of the disc h by means of a suitable arrangement, (in this case for instance
a shaft with a lever which engages on the pin of the roller is provided).
If the perforating apparatus is to be thrown out of action the roller is with-
drawn from the groove of the cam disc h, and its pin then enters a hole in a
fixing iron attached to the machine frame, in order to fix the apparatus in its
normal position.
Of course the throwing out of action of the perforator bar movement and its
regulation may be obtained by other known mechanical means.
Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed, we declare that what
we claim is:
1. In an embroidering machine, the combination with a reciprocating needle
and a perforator, of mechanism for reciprocating said perforator independently
of the needle, and mechanism for throwing the perforator into and out of opera-
tion at will, for the purpose set forth.
2. In an embroidering machine, the combination with a reciprocating needle
and a perforator of increasing diameter from its point to its heel, of mechanism

page_text: for reciprocating said perforator independently of said needle, and mechanism
for varying the amplitude of the reciprocations of the perforator, for the purpose
set forth.
3. In an embroidering machine, the combination with a reciprocating needle
and a perforator of increasing diameter from its point to its heel arranged to
reciprocate with its longitudinal face parallel with and in close proximity to the
path of said needle for the purpose set forth.
4. In an embroidering machine, the combination with a needle and a per-
forator of increasing diameter from its point to its heel and grooved longitudi-
nally from or approximately from point to heel, said perforator arranged to
reciprocate with its longitudinal face parallel with and proximate to the path of
the needle, for the purpose set forth.
5. In an embroidering machine, the combination with a needle and a com-
paratively long perforator of increasing diameter from its point to its heel, said
perforator arranged to reciprocate with its longitudinal face parallel with and
proximate to the path of the needle, of mechanism for varying the amplitude of
the reciprocations of said perforator independently of the needle, for the purpose
set forth.
6. In an embroidering machine, the combination with a plurality of recipro-
cating needles and a perforator, for each of said needles, increasing in diameter
from their points to their heels, of mechanism for simultaneously reciprocating
the perforators independently of the needles, and means for varying the ampli-
tude of the reciprocating movements of said perforators, for the purpose set forth.
7. In an embroidering machine for producing open work effects, a perforator
characterized by having such a position to the needles that the point of the per-
forator in its working position is in immediate proximity to the axis of the
needles, with the object of enabling any desired perforations to be made without
its being necessary to stop the machine as regards the formation of stitches, and
to have a special adjustment of the material for the perforator, so that the time
hitherto required for the perforating and the thread feed is utilized for an in-
creased production of the embroidering machine, and the defects in the em-
broidery resulting from the thread feed may be avoided substantially as set forth.
Dated this 19th day of March 1900.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicants.