IMPROVEMENTS IN MACHINES FOR THE MANUFACTURE OF TULLE OR SIMILAR MATERIAL
Year: 1885

page_text: similar Material.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co, Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of my invention for "IMPROVEMENTS IN MACHINES FOR THE MANUFACTURE OF
TULLE OR SIMILAR MATERIAL" to be as follows :—
This invention relates to machines, for manufacturing tulle.
In the tulle machines at present employed motion is imparted to the catch-bars
by which the bobbin carriages are operated by means of a crank-shaft. In tulle
machines on the English "Gostros" system in which the bobbin carriages move
entirely upon one side the regular movement of the two catch-bars is also effected
by means of a crank-shaft, but this arrangement limits the width of the clear space
beyond the carriages.
The mechanism which forms the subject of the present invention is distinguished
from that heretofore used in that motion is imparted to each of the catch-bars
independently of the other, and that the catch-bar which is drawing the carriages
moves the latter clear of the warp-threads; while the other catch-bar, which is
pushing the carriages, stops at the said space whatever may be the size of the
latter, thus enabling the variation of the warp-threads to be effected. These
motions are repeated alternately.
Motion is imparted to the catch-bars in the improved machine by means of cams
of the necessary shapes produce the required movements, according to the nature
of the various articles to be produced.
These cams are keyed upon the driving-shaft. In the rotary motion of this shaft,
these cams act respectively against rollers, carried upon studs connected to slides
and communicating reciprocating motion to the latter.
This independent motion imparted to the slides is utilized for actuating the
catch-bars. For this purpose connecting rods are attached at one extremity to each
slide, at one side of the latter; and at the other extremity to a piece connected

page_text: with a hinged bar, which hinged bars are mounted upon a common shaft. Upon
these hinged bars are mounted two rods carrying the catch-bars.
In the improved machine, as well as in machines on the English "Gostros"
system, the motion of the treadle of the carriages takes place wholly in the rear or
wholly in front.
With the improved machine plain, figured or laced tulles can be manufactured at
will, it being only necessary, according to the article to be made, to change the
cams mentioned above, for obtaining a greater or smaller movement of the catch-
bars which push, and to enable a space of the desired width to be obtained, in
order to locate therein the number of independent bars required.
By means of this invention the production is greatly increased.
HASELTINE, LAKE & Co.,
For the Applicant.

page_text: Improvements in Machines for the Manufacture of Tulle or
similar Material.
I, HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co, Patent Agents,
Southampton Buildings, in the County of Middlesex, 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 machines for manufacturing tulle, or similar material.
In the tulle machines at present employed motion is imparted to the catch-bars
by which the bobbin carriages are operated, by means of a crank shaft. In tulle
machines on the English Gostros" system in which the bobbin carriage move
entirely on one side the regular movement of the catch bars is also effected by
means of a crank-shaft but this arrangement limits the width of the clear spaco
beyond the carriages.
The mechanism which forms the subject of the present invention is distinguished
from that heretofore used in that motion is imparted to each of the catch bars
independently of the other, and that the catch-bar which is drawing the carriages
moves the latter clear of the warp-threads, while the other catch-bar which is
pushing the carriages stops at the said space whatever may be the size of the
latter, thus enabling the variation of the warp-threads to be effected. These
motions are repeated alternately.
Motion is imparted to the catch-bars in the improved machine by means of cams
of the necessary shapes to produce the required movements according to the nature
of the various articles to be produced.
In the accompanying drawing,
Figure 1 is an elevation of apparatus constructed according to this invention.
Figure 2 is a plan of the same, and
Figure 3 is an elevation showing the method of applying the improvements to an
old machine.
rands are cams keyed upon the driving shaft A (Figures 1 and 2.). In the
rotary motion of this shaft, these cams act respectively against rollers v and v
which, having their shafts connected to the slides M communicate reciprocating
motion to the latter.
This independent motion imparted to the slides is utilized for actuating the
catch-bars, For this purpose two connecting rods L Figures 1 and 2 are each
attached at one extremity to a slide M and at the other to a piece J connected
with the binged bar E, both of which hinged bars are keyed upon a common
shaft B. Upon these hinged bars are mounted two bars G carrying the catch bars
proper C.
These improvements can be applied to machines already in use without occasion-
ing very great expense to the manufacturers.
Figure 3 represents succinctly the modifications which are necessary in an old
tulle machine in applying the present improvements thereto. The modifications
are as follows,

page_text: The crank shaft actuating the catch-bars in the old machine being useless is
replaced by a straight shaft carrying the driving gear and having mounted
upon it the cams r and 8. The slides M and also the two connecting rods L
are retained.
These connecting rods are each attached, as previously, on the
one hand to the slides, and on the other hand through the medium of levers X to
two square shafts RS arranged longitudinally behind the loom so as to .be out
of the way. From these levers. X which are preferably made integral with the
shafts RS motion is communicated to the two catch-bars C. As will be seen the
motions imparted to these two catch-bars are as above described independent of
one another.
In the present case as in the English "Gostros," system, the motion of the
carriages, D. is altogether effected from one side, that is to say, entirely, behind or
entirely in front.
With this improved machine plain. tulles, figured tulles or laced tulles can be
manufactured as desired. For this purpose it is only necessary, according to the
article to be produced, to change the cams mentioned above for obtaining a longer
or shorter stoppage of the catch bars, thereby enabling a clear space of the desired
width to be obtained in order that the number of independent bars which the
article requires can be located therein.
It is to be understood in applying my improvements to machines already in use
that the details can be varied according to; the type of machine to which the
apparatus is applied, the principle of the invention always being the same as set
forth.
By the use of this, invention the manufacture is materially augmented, as the
machines can be operated at a much greater velocity than formerly.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, as communicated to
me by my foreign correspondent I declare that what I claim is :-
First. In a machine for the manufacture of tulle or similar materials the
employment of apparatus substantially as above described and illustrated in the
accompanying drawing, which apparatus is characterized by the independent
motion imparted to the two catch-bars through the medium of cams.
Second. The modification of my invention substantially as described with
reference to Figure 3 for the purpose specified.
Dated this 20th day of March 1886