Improvements in Embroidering-machines.
Year: 1892

page_text: Date of Application, 19th Oct., 1892.
Complete Specification Left, 28th June, 1893—Accepted, 23rd Sept., 1893
PROVISIONAL SPECIFICATION.
Improvements in Embroidering-machines.
I, FRIEDRICH VON MARTINI, of Frauenfeld, Switzerland, Engineer, do hereby
decl.re the nature of this invention to be as follows:-
The speed at which Heilmann's embroidering machine can work is limited by
the quality of the thread used, which wears appreciably when drawn quickly
through the material; but this speed is never attained on the hand embroidering-
machine at present in use in consequence of the insufficient power of the
embroiderer.
Now this invention has for object to improve the hand embroidering-machine in
ordinary use in such a manner that the speed of the machine can be increased and
so that two or more machines can be worked by the one operator.
To attain this object the operator is relieved of work which has heretofore been
done by hand and which limits his capacity for work; so that he has left to
him little more than the control or regulation of the machine, the mechanical
work proper being performed by driving power placed at his disposal, suitable
apparatus being provided by which the direction of motion and the speed of the
machine is completely under the control of the embroiderer.
For attaining the object in view as above indicated, the driving-mechanism is
provided with a conpling capable of being placed into and out of engagement and
whereby the various intermittent changes of movement required for embroidering
can be effected and maintained. Apparatus for this purpose can be constructed
in various ways.
In the accompanying drawings,
Fig. 1 is a front elevation, and
Fig. 2 a side elevation of the driving mechanism for a hand embroidering-
machine constructed according to my invention.
Fig. 3 is a section to a larger scale, taken through the crank handle and
crank shaft.
On the crank shaft 1 carrying the crank handle, and at both sides of the hand
wheel 2, are mounted small loose belt-pulleys 3, 4, which are rotated from a
counter-shaft in opposite directions. These pulleys 3 and 4 are provided with
friction cones adapted to engage with suitable friction-cones on the hand wheel 2
and to cause the latter to rotate in one or the other direction according as it is
pressed into one or other cone. The hand wheel 2 is not keyed fast on the crank
shaft but its bore is formed with a screw-thread, and a corresponding screw
thread is formed on the part 5 of the crank shaft. On turning the crank handle
the hand wheel 2 (since the machine offers the necessary resistance) is shifted on
the part 5 to the right or to the left according to the direction of the rotation
of the crank handle until it arrives and is pressed against the pulley 3 or 4 by
which it is then rotated. In driving by friction, the speed of the wheel 2 can be
regulated by pressing more or less on the crank handle also by moving the wheel 2
in the opposite direction a braking action can be exerted upon the moving parts so
as to bring them to rest, and also to complete the pull or tightening action exerted
on the threads. The speed of the countershaft for driving the pulleys 3 and 4
may be made adjustable by suitable gearing.
For certain cases, however, it is necessary that the hand wheel 2 and the crank
handle shall be capable of being coupled firmly together in order that the machine
may be used for a longer or shorter period exactly like the hand embroidering-
machine at present in ordinary use. These cases occur, for example, when the
operator desires to complete the pull by hand in boring, punching, and festooning,

page_text: in finishing off the short remnants of thread and in adjusting the carriages. For
this purpose the following arrangement is employed.
In the crank handle 18 is located an endways movable pin 6 which actuates a
lever 7 so as to move a pin 8 along a slot in the crank-shaft 1, with which the
pin 8 is compelled to rotate. On one side of the hand-wheel 2 suitable grooves 9
are made for the entry of the pin S. If now the operator after the frictional
driving is stopped, presses upon the projecting knob 10 of the handle 18, the
pin 8 will enter the slot in the hand-wheel and connect it and the crank handle
firmly together.
The motive power provided can be also employed by the operator for aiding or
effecting the changes required in the gearing for the intermittent motion of the
front and rear carriages, so that he is also partly or wholly relieved of this
mechanical work.
For this purpose the arrangement is such that when the operator commences the
delivery by pressing on the corresponding treadle 11, the carrier-wheel 12 will
begin to move out of gear with the teeth of the wheel 13 and towards the wheel 14
and will engage a tooth 15 fixed to the framing of the embroidering-machine as
soon as it is clear of the wheel 13; and the hand-wheel 2 continuing to be rotated
by the motive power, will cause the shifting lever 16 to turn until the wheel 12
gears with the wheel 14.
The tooth 15 is arranged to be readily thrown into and
out of operation, as required, by means of a handle 17 Thus by the means
described the operator's foot will be relieved of a considerable amount of work.
Or the carriages when running-in may be caused by means of suitable pins, to act
directly in the proper direction on the shifting-lever 16 so as to operate this lever
and effect the delivery in an automatic manner the operator still having complete
control of the machine, by means of the crank handle 18.
The motive power provided may be also used for beginning or effecting the pull
on the thread..
Dated this 19th day of October 1809
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Embroidering-machines.
I, FRIEDRICH VON MARTINI, of Frauenfeld, Switzerland, 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 :-
The speed at which Heilmann's embroidering machine can work is limited by
the quality of the thread used, which wears appreciably when drawn quickly
through the material; but this speed is never attained on the hand embroidering-
machine at present in use in consequence of the insufficient power of the
embroiderer.
Now this invention has for object to improve the hand embroidering-machine in
ordinary use in such a manner that not only the speed but also the power of the
machine can be increased so that two or more machines can be worked by one
operator, and the output of work therefrom increased.
To attain this object the operator is by my invention relieved of work which has
heretofore been done by hand and which limits his capacity for work; so that there
is left to him little more than the control or regulation of the machine, the
mechanical work proper being performed by driving power placed at his disposal,
suitable apparatus being provided by which the direction of motion, the power,
and the speed of the machine are placed completely under his control,

page_text: provided with a coupling capable of being placed into and out of engagement and
whereby the various intermittent changes of movement required for embroidering
can be effected and maintained. Apparatus for this purpose can be constructed in
various ways.
In the drawings filed with my Provisional Specification,
Fig. 1 is a front clevation, and
Fig. 2 a side elevation of driving mechanism for an embroidering machine
constructed according to my invention.
Fig. 3 is a section to a larger scale, taken through the crank handle and crank
shaft.
-
On the crank shaft 1 carrying the crank handle, and at both sides of the
wheel 2, called the hand wheel, are mounted small loose belt pulleys 3, 4 which are
rotated from a counter-shaft in opposite directions. These pulleys 3 and 4 are
provided with friction cones adapted to engage with suitable friction-cones on the
wheel 2 and to cause the latter to rotate in one or the other direction according as
it is pressed into one or other cone. The wheel 2 is not keyed fast on the crank
shaft but its bore is formed with a screw-thread, and a corresponding screw-thread
is formed on the part 5 of the crank shaft. On turning the crank handle, the
wheel 2 (since the machine offers the necessary resistance) is shifted on the part 5
to the right or to the left according to the direction of the rotation of the crank
handle, until it arrives and is pressed against the pulley 3 or 4 by which it is then
rotated. In driving by friction, the speed and power of the wheel 2 can be
regulated by pressing more or less on the crank handle; and by moving the
wheel 2 in the opposite direction, a braking action can be exerted upon the moving
parts so as to bring them to rest and also to complete the pull or tightening action
exerted on the threads. The speed of the countershaft for driving the pulleys 3
and 4 may be made adjustable by suitable gearing.
For certain cases, however, it is necessary that the wheel 2 and the crank handle
shall be capable of being coupled firmly together in order that the machine may
be used for a longer or shorter period exactly like the hand embroidering machine
at present in ordinary use. These cases occur, for example, when the operator
desires to complete the pull by hand in boring, punching, and festooning, in finishing
off the short remnants of thread, and in adjusting the carriages. For this purpose
the following arrangement is employed :-
In the crank handle 18 is located an end ways movable pin 6 which actuates a
lever 7 so as to move a pin 8 along the slot in the crank shaft 1, with which the
pin 8 is compelled to rotate. On one side of the wheel 2 suitable grooves 9 are
made for the entry of the pin 8. If now the operator after the frictional driving
is stopped, presses upon the projecting knob 10 of the handle 18, the pin 8 will
enter the slot in the wheel 2 and connect it and the crank handle firmly together.
The motive power provided can be also employed by the operator for aiding or
effecting the changes required in the gearing for the intermittent motion of the
front and rear carriages, so that he is also partly or wholly relieved of this
mechanical work.
For this purpose the arrangement shown is such that when the operator
commences the delivery by pressing on the corresponding treadle 11, the carrier-
wheel 12 will begin to move out of gear with the teeth of the wheel 13 and
towards the wheel 14 and will engage a tooth 15 fixed to the framing of the
embroidering-machine as soon as it is clear of the wheel 13; and the wheel 2
continuing to be rotated by the motive power, will cause the shifting-lever 16 to
turn until the wheel 12 gears with the wheel 14. The tooth 15 is arranged to be
readily thrown into and out of operation, as required by means of a handle 17.
Thus by the means described the operator's foot will be relieved of a considerable
amount of work.
Or the carriages when running-in may be caused by means of suitable pins, to act
directly in the proper direction on the shifting-lever 16, so as to operate this

page_text: lever and effect the delivery in an automatic manner, the operator still having
complete control of the machine, by means of the crank handle 18.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. A hand embroidering machine provided with a coupling by means of which
the operator can cause the machine to be driven by motive power and by means of
which also he can control the direction of motion the amount of power and the
speed produced by the said motive power substantially as hereinbefore described
for the purpose specified.
2. A machine of the kind referred to in the preceding claim, in which the
coupling is constructed as a friction coupling mounted on the crank-shaft of the
hand-wheel (see wheel 2) substantially as herein before described and illustrated for
the purpose specified.
3. In a machine of the kind referred to in Claim 1, a second coupling (8—9)
and means for operating the same whereby the crank handle can be rigidly con-
nected to the wheel 2 so that the machine can when desired be temporarily worked
by hand in the usual manner substantially as hereinbefore described.
4. In a machine of the kind referred to in Claim 1, a tooth 15 with which the
carrier-wheel 12 engages so as to be partly rotated thereby when passing from the
wheel 15 to the wheel 14 substantially as described and shown for the purpose
specified.
Dated this 28th day of June 1893.
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.