Year: 1888

page_text: We, JOHN GEBBIE and THOMAS MITCHELL both of Ossington Lace Factory,
Kilmarnock, in the County of Ayr, Manufacturers, do hereby declare the nature of
this Invention to be as follows:-
This Invention has for its object to produce in lace making machines mesh fabrics
having designs or patterns upon them and the apparatus by which this object is
attained consists of a cam situated on or operated from one of the rotating shafts of
an ordinary lace making machine the said cam being so stepped or faced as to first
actuate a series of jacks so as to enter them between the warp threads and separate
these threads and next to move out each intermediate jack to enable the threads where
the jacks have been so moved to be again brought together for the purpose of knotting
them so as to form a mesh the knotting being produced in the usual way. The
threads of the warp pass through guide eyes made on a guide bar which is recipro-
cated by the cam so as to bring the threads together alternately that is to say--taking
four threads of the warp-and supposing threads two and three to have been knotted
the guide bar is by the cam moved to one side so as to bring thread two up to thread
one and thread four up to thread three these threads being knotted for which purpose
the jacks between threads one and two and three and four move out whilst the jack
which had previously been moved out between threads two and three enters between
these threads.
To produce the flower or pattern upon the mesh fabric so made another cam is pro-
vided and which is so stepped or faced and connected to the guide bar as, at the
desired times, to cause the said bar to drop three" gates" before the jacks enter from
the back after which the weaving of the pattern proceeds in the usual manner and
according to the jacquard or pattern mechanism in use.
201
1000
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow,
Agents.

page_text: We, JOHN GEBBIE and THOMAS MITCHELL both of Ossington Lace Factory,
Kilmarnock, in the County of Ayr, 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:-
This Invention has for its object to produce in lace making machines mesh fabrics
having designs or patterns upon them this object being attained by the employment
of cams situated on or operated from rotating shafts of an ordinary lace making
machine. The cams are stepped or faced to actuate the warp and spool guide bars to
bring the threads to the proper position for jacks to enter between them. Two
separate series of cards are employed, one for the pattern and the other for the knots
on the mesh ground, the jacquard mechanism making two revolutions for each
revolution of the machine.
In the accompanying sheet of diagrams Figures 1, 2, 3, 4, 5 and 6 shew the
operation of the jacks and guide bars in order to produce one "shot" of a piece of
lace fabric in accordance with our Invention. Figures 7 and 8 are respectively the
warp guide and spool guide actuating cams, which are fitted on separate shafts of the
machine rotating at the same speed, while figure 9 is a diagram representing the cam
surfaces rolled out side by side to shew how they operate in conjunction with each
other, the figured lines showing the positions of the rollers in the ends of the guide
bar actuating levers and which rest on the cam surfaces corresponding to the positions
shewn in figures 1 to 6. In figure 9 x represents the stepped surface of the warp
guide cam and the surface of the spool guide cam.
"
In figure 1 the jacks a are all out and the rollers on the cams x, y, are in the
position indicated by the line 1 figure 9 so that the warp guide bar 6 with the warp
threads is in its extreme position to the right, the spool guide bar cbeing "one gait up
i.e. it has carried the spool threads to the left through a distance equal to the distance
between two threads. The warp guide cam now lifts the warpiguide bar "one gait
up and those jacks which have not been selected by the ground card are thrown in.
This is the position shewn at figure 2 where a' are the jacks selected by the jacquard
card. The spool guide bar c now drops one gait" and carries the pattern threads to
their extreme position to the right excepting such threads as are held by the jacks.
The warp guide bar 6 now rises "one gait" extra 'so that all the warp threads are now
two gaits up excepting such threads as are held back by the jacks the latter threads
being one gait up. By this means wherever a hole is panched in the jacquard card
and the jack actuated by it is held back two warp threads are allowed to come
together and they are tied in this position by the action of the shuttle threads of the
machine the knotting being produced in the usual way. This position is shewn in
figure 3 and while in the said position the shuttle carriages pass from the back to the
front. The jacks are now all withdrawn and the rollers of the guide actuating levers
resting on the cams having reached the line 4 (figure 9) the threads are all moved to
their original position as indicated in fig. 4.

page_text: The jacquard card which has been cut for the pattern now comes into operation and
all the jacks are thrown in except where the pattern is to be formed. This position
is shown in figure 5, the jacks a' being held back to form the pattern at these points.
The spool guide bar c is now raised three" gaits” or four "gaits" by the spool guide
cam y which cam is interchangeable so as to produce two "gait" or three "gait"
cloth as desired. The position is shown in figure 6, and while in this position the
shuttle carriages pass from the front to the back. The jacks are then again withdrawn
and the spool guide bar c drops two "gaits" (or three "gaits") thus coming back to
the position shewn in figure 1 and ready for the next shot. Thus if for a certain jack
no hole is punched in either card the warp and spool threads will be merely held
together by the shuttle thread twisting round them. If a hole is punched in the
ground card the two warp threads will be tied together by the shuttle thread when
that card comes into operation and will form one knot of a mesh. Where a hole is
punched in the pattern card the pattern thread is drawn across between two warp
threads and forms a part of the pattern on the fabric.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is:
The manufacture of meshed fabrics having patterns or designs upon them sub-
stantially as and by the means hereinbefore described.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow,
Agents.
CRUIKSHANK & FAIRWEATHER,
62, Saint Vincent Street, Glasgow,
Agents.