Improvements in Apparatus applicable to Twist Lace Machines.
Year: 1892

page_text: Date of Application, 16th July, 1892
Complete Specification Left 12th May. 1893-Accepted. 17th June, 1893
PROVISIONAL SPECIFICATION.
Improvements in Apparatus applicable to Twist Lace Machines.
1 THOMAS HOLMES, of 60 Ilkeston Road, Nottingham, Lace Maker, do hereby
declare the. nature of this invention to be as follows:-
-
I employ two additional point bars, below the point bars usually employed in
twist lace machines.
The requisite in and out, and rising and falling movements are given to the
The traverse of
additional point bars by cams operating truck bearing levers.
the additional point bars is effected by a jacquard in the usual way.
By means of the above described apparatus any number of threads may be
traversed the required number of gates, from one to fifteen inches or more in the
direction of the length of the machine with safety.
The front lower point bar takes up the traversed threads ready for the carriages
and back upper point bar points to pass through, the back lower point bar takes
up the traversed threads ready for the carriages and front upper point bar points
to pass through.
Dated this Twanty-third day of June 1892.
H. W. GOUGH, C.E.,
Agent.
COMPLETE SPECIFICATION.
Improvements in Apparatus applicable to Twist Lace Machines.
I THOMAS HOLMES, of 60 Ilkeston Road, Nottingham, Lace Maker, 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:-
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a vertical sectional view of the upper part of a twist lace machine
with my improvements applied thereto.
Figure 2 a front view of the same at the left end of the machine.
Figures 3, 4, 5, 6 and 7 are enlarged right side views of the cams and trucks I
employ to communicate the requisite movements to the several parts.
I employ two additional point bars 1 and 2, shown only at Figure 1, below the
point bars usually employed in twist lace machines. Each bar being provided
with a row of points cast in leads secured to the bar by screws in the usual way.
The additional front point bar 1 is carried by two or more arms 3, the number
varying according to the length of the machine, the upper end of each arm is
provided with a set screw and lock nut for adjustment in the usual way, the arm
is secured by screws to a bracket 3, hinged to the front end of a lever 5 provided
with a cap 5, the lever and cap being bored out to clip and rock upon a neck
formed on the usual front point bar spindle 7.
The back end of the lever 5 carries an axle and truck 7* operated by a cam 9
shown at Figure 3 to give the requisite rising and falling movements to the front
lower point bar, the front upper point bar being carried by arms hinged to levers
secured to and rocking with the spindle 7 in the usual way.
The additional back point bar 2 is carried by two or more arms 4, the upper end
of each arm being provided with a set screw and lock nut and secured by screws to
a bracket 4 hinged to the front end of a lever 6 provided with a cap 6° the lever

page_text: and cap being bored out to clip and rock upon a neck formed on the usual back
point bar spindle 8.
The back end of the lever .6 carries an axle and truck 8" operated by a cam 10
shown at Figure 4 to give the requisite rising and falling movements to the back
lower point bar, the back upper point bar being carried by arms hinged to levers
secured to and rocking with the spindle bar 8 in the usual way.
The in and out movements of the front lower point bar I are effected by cach
arm 3 being hinged to the front end of an arched link 11 having its back. end
hinged to the lower end of a double ended lever 13 rocking on an axle projecting
from a bracket 15 secured to the upper back tie rail 15 of the machine. The
lever 13 carries an axle and truck 13 shown by dotted lines at Figure 1, operated
by a cam 17 shown at Figure 5, the truck being held to the cam by a coiled
spring 13 having its back end hooked on the upper end of the lever 13 and its
front end on a hook projecting from the top tie bar of the machine.
The in and out movements of the back lower point bar 2 are effected by each
arm 4 being hinged to the front end of a link 12 having its back end hinged to the
lower end of a double ended lever 14 rocking on an axle projecting from a
bracket 16 secured to the upper back tie rail of the machine. The lever 14 carries
an axle and truck 14 operated by a cam 18 shown at Figure 6, the truck being
held to the cam by a coiled spring 14 having its front end hooked to the upper
end of the lever 14 and its back end on a hooked bar projecting from the back of
the top tie bar.
To give room for the additional point bars to descend between the combs carried
by the usual comb bars 19 and 20, instead of moving the comb bars an equally
short distance outwards from the centre of the machine at each motion in the usual
way, the front comb bar 19 is moved outwards into the position shown at Figure 1
and the back comb bar 20 a less distance from the centre of the machine at one
motion, at the next motion the back comb bar 20 is moved the greater distance
and the front comb bar 19 the less distance, their position being changed at each
alternate motion.
Such movements are effected by the following means.
Near each end of the machine, the front end of a bent link 21 is hinged to the
underside of the front comb bar 19, the back end of the link being hinged to the
lower end of a lever 23 rocking on an axle projecting from a bracket 25 secured to
the tie rail 15". The upper end of the lever carries an axle and truck 23" shown
by dotted lines at Figure 1 operated by a cam 26 shown at Figure 7.
The back comb bar 20 near each end is hinged at the back to the front end of
an adjustable link 22 the back end of the link being hinged to the lower end of a
lever 24 rocking upon an axle projecting from the end standard of the machine,
the upper end of the lever carries an axle and truck 24° also operated by the
cam 26, the trucks 23ª and 24" being held to the cam by a spring 24b having one
end hooked to the lever 24 and its other end to a hook secured to the lever 23.
The in and out movements of the front and back landing bars 27 and catch
bars 28 are effected by links 29 hinged to levers 30 secured to the back spindle
bar 31 rocked by links operated by cranks on a front driving shaft in the usual
way.
The points carried by the front lower point bar take up the threads 32 traversed
by any number of steel bars 33, the traverse being effected by a jacquard in the
usual way, ready for the bobbin threads 34 and carriages and back upper points to
pass through at one motion of the machine.
The points carried by the back lower point bar take up the traversed threads
ready for the bobbin threads and carriages and front upper points to pass through,
such movements being repeated alternately.
The movements of the points carried by the two additional point bars operating
in combination with a twist lace machine are as follows:-
The several parts being in the relative position shown at Figure 1, the top front
points being partly in the threads 32 and the bobbin threads, the back top points

page_text: just going out both points being under the work bar 35, the front bottom points
enter the threads 32 traversed by the bars 33, the bobbins and carriages being
quite out of the threads and in the back combs, the front bottom points enter the
threads and rise lifting the whole of the traversed threads to about one inch above
the tops of the carriages, the back top points having come down take the threads
from the bottom front points, the top front points drawing out clear of the threads
as the top back points rise, the carriages with their bobbins and threads having
passed to the front, like movements being repeated at each motion of the machine,
the fabric passing over the work bar to the work roller 36 in the usual way.
The drawings show an additional pair of point bars and points below the ordinary
point bars and points employed in twist lace machines, but the points carried by
the lower point bars will raise the traversed threads up to the face bar equally as
well if employed alone.
By means of the above described apparatus any number of threads may be
traversed the required number of gates either right or left, from one to fifteen
inches or more in the direction of the length of the machine and then be lifted up
to the work bar by the two sets of points with safety.
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. The construction and employment in twist lace machines of two additional
point bars 1 and 2 each provided with a row of points for taking up the threads 32
traversed by the bars 33, the point bars being carried by arms 3 and 4, and
brackets 3, 4", hinged to levers 5 and 6 rocking upon spindles and carrying
trucks 78 operated by cams 9 and 10 to give the requisite rising and falling
movements to the points and point bars, substantially as herein before described.
2. The construction and employment in twist lace machines of links 11 and 12
hinged to the arms 3 and 4 and to rocking levers 13, 14 carrying trucks 13ª, 14"
and provided with springs 13, 14' to hold the trucks to two operating cams 17
and 18 to give the in and out movements to the points and point bars, substantially
as hereinbefore described.
3. The construction and employment in twist lace machines of a cam 26 for
operating truck bearing rocking levers connected by links to the usual comb
bars 19, 20 to move the said bars outwards substantially as herein before described
for the purpose specified and illustrated in the drawings annexed.
Dated this Eleventh day of May 1893
H. W. GOUGH, C.E.,
Agent.