Improvements in or relating to Lace Making Machines.
Year: 1894

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to Lace Making Machines.
I OTTO PRANTE, of 23 Ziegelstrasse, Barmen in the Empire of Germany,
Manufacturer 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 consists in improvements in or relating to lace making machines,
the object being to produce a lace of wool, cotton, silk or any other material
having appliqué figures on one side or made up of strips of various colours or
materials.
For producing this lace I use a machine which is substantially a combination of
two lace machines connected together by interbraiding or interlacing raceways and
devices arranged concentrically and provided with repeating mechanism.
The annexed drawings referred to in the following description illustrate the
characteristic parts wherein this machine differs from the ordinary lace machines
employing bobbins whose spindles move in interlacing raceways.
.
In the drawings,
Fig. 1. Sheet I illustrates diagrammatically the raceway plate in plan view
showing the course for the interlacing of the bobbins, whilst on Sheet II, Fig. 2
shows on the left up to the line W, X. a part of the raceway on a larger scale,
between the lines W X and UV a part of the spindle driving disks, and to the
right of line UV the inter-gearing of said disks.
Fig. 3 illustrates a vertical section on the line Z, Y, and Fig. 4 the same on
line W..X of Fig. 3.
Similar letters refer to similar parts throughout the drawings.
The raceway plate, having its isolated portions supported by pillars on which
the driving disks revolve, is provided or formed with tangentially connected
circular, oval, or similar continuous raceways, a, b, arranged alternately in a
circular series and of a greater or less number according to the width of the lace
to be made, to provide for movement and interlacing of the bobbins on the inner
course, the duty of which is to form the body of the lace, and radially of each of
said raceways a b is a similar outer series of similar raceways cd (the general series
being concentric with the series a b) serving for the movement in the outer course
of those bobbins which serve to produce the figures.
Between each of the raceways a of the inner row and the raceway c, radially
disposed thereto, of the outer row a tangentially connecting raceway e is provided
so that the bobbin temporarily under the control of the respective disk under the
raceway a is enabled to pass over to the raceway e and return to its previous
raceway a, and at the same time a bobbin from the corresponding raceway c is
enabled to pass over to the same raceway e and return to its previous plate after
interlacing with the bobbin from raceway a, if the respective pair of switches of
the raceway e is opened and closed at the right moment as referred to hereinafter.
Furthermore each raceway a has tangential to it a corresponding outer raceway f
and each raceway c has a similar outer raceway 9; moreover the last or end
raceway a of the series has an outer raceway h and the last end raceway can outer
raceway . The raceways and i are each provided with a single switch and
the raceways a and c and the intermediate raceways b and d are provided each with
a pair of switches.
The driving disks a¹ c', corresponding to the raceways a and c and likewise the
lower placed disks, bd for the raceways b and d have in their peripheries two
oppositely arranged notches for actuating the spindles of the bobbins. Upon the

page_text: hubs of each disk a¹ a gear wheel a³ is fixed, at equal height with, equal in diameter
to, and meshing with similar gear wheels 6 on the hubs of disks b. Gear
wheels d³, of equal size, also provide for engagement of disks c' and d¹.
The gear wheels e³ for the intermediate disks e¹ (having two notches in their
peripheries) and gear wheels f³ g³ etc., for the outer disks f, g, h,, (having only
one notch) are all of equal size and engage with the gear wheels c³ of the disks c,
and the lower gear wheels a³ on the hubs of disks a' respectively, and are half as
large as said gear wheels c³, a³, which are of equal diameter.
The construction of the parts will be obvious from the drawing to those skilled
in the art, and the remaining parts of the machine not illustrated are of the usual
construction. It may however be mentioned that the tappets or cams a¹ c¹ shown
in Fig. 2 may be arranged upon the hubs of the disks a¹ and c¹ to open and close
the switches regularly at each revolution of the respective disk, that is to say, to
open the switches in the known manner and to permit them to close by spring pull
in order not to increase unnecessarily the repeating mechanism which is indispensable
for other switches with irregular movements.
a, b;d, f etc. are holes for the pillars a, b, d, fº etc."
"
•
In
As an example, the position of the spindles at the one part of the inner course,
beginning at A. (Fig. 1) is marked by the numbers 1, 2, 3 and the position.
of the spindles in the corresponding outer course marked by I, II, III
this position the spindles of the inner partial courses can all be provided with yarn
carrying bobbins, whilst the spindles of the outer partial courses are only some of
them provided with yarn bobbins; then the inner course will form the ground or
body for the mainly uninterrupted outer lace which at the places of interruption is
stitched or looped together with the inner lace by the interlacing raceways. In
Fig. 1, for instance, the spindles 1 and 2, I and II, are standing before open
switches, so that 1 and I are allowed to pass over from the races a and c they have
previously passed along to the intermediate race e, while II is carried into the
outer race 9, and 2 passed to its outer race f. After a revolution in these races
each of the spindles comes back into its previous race, when the respective switches
are duly changed by the repeating mechanism and each spindle again pursues its
first course after the bobbin 1 has intertwined with II, so that at this place the
inner lace forming the broad background becomes connected with the outer lace
which covers the inner only at certain places in most various ways thus forming
figures, as the switches are directed by the Jacquard cards or some other repeating
mechanism. But the spindles of any lengths of the outer course may also be
provided with bobbins all carrying certain coloured stuffs and the bobbins may be
made to intertwine with bobbins in certain lengths of the inner course corresponding
only to those places where in the outer course stuff-bobbins are missing, so that by
junction of the outer and inner courses variously coloured strips will alternate in
the fabric connected together at the places of transition.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim is
In a lace machine,
1. The combination of two parallel series of raceways adapted each to guide
bobbins for formation of lace, with intermediate raceways adapted for intertwining
the bobbins of one series of raceways with those of the other series for junction of
the two laces.
2. The combination of two parallel series of raceways each composed of
tangentially communicating circuits, with intermediate circuits tangentially
communicating with circuits of the said parallel series which correspond to each
other.
3. The combination of a series of tangentially communicating circuits a, b, a
parallel series of similar circuits c, d and intermediate circuits e tangentially
communicating with alternate circuits a and c.

page_text: 4. The combination of a series of tangentially communicating circuits a, b, a
parallel series of similar circuits c, d, intermediate circuits e tangentially com-
municating with alternate circuits a and c, exterior circuits f tangentially
communicating with circuits a and exterior circuits 9 tangentially communicating
with circuits e.
5. The combination of raceways as described with bobbins, with full bobbins
adapted to be guided by the one series of raceways, full and empty bobbins adapted
to be guided by the other series of raceways, switches adapted to close and open.
said raceways, and means for operating said switches whereby the one series of
raceways may form an appliqué pattern and intertwine it with a body lace produced
by the other series of raceways, substantially as set forth.
6. The combination of raceways as described with bobbins in alternated portions
only of the several raceways respectively, switches adapted to close and open said
raceways and means for operating said switches whereby the two series of raceways
may severally produce strips of lace connected at their edges each to each
substantially as set forth.
19th of June 1901
R. HADDAN,
Of the Firm of Herbert Haddan & Co.,
18, Buckingham Street, Strand, London, W.C.,
Agent for the Applicant.