IMPROVEMENTS IN WARP LACE MACHINES
Year: 1885

page_text: We, ALFRED DAWSON, of the. Firm of Thomas Herbert and Company, Hounds
Gate, in the town and county of the town of Nottingham, Lace Manufacturers, and
EDWIN SMITH in the employment of the same firm do hereby declare the nature of
our invention for IMPROVEMENTS IN WARP LACE MACHINES to be as follows:-
The object of our invention is to facilitate the working of an increased number
of fancy bars in a warp lace machine. The chief obstacle in the way of attaining
the above object has been the necessity for working the fancy bars, close to the
needles. But by means of our invention the bars may be worked at an increased
distance from the needles, thus allowing a greater number of fancy bars to be
worked.
In our improved machines we employ instruments, (which for convenience we
call combs) which work backwards and forwards through the threads close to the
fancy bara. The traverses of the various threads are taken from the combs by a
point bar or hook bar and laid on the needles. The blades of the combs being of a
considerable length allow the bara to be worked at a greater distance from the
needles. By means of the employment of these combs we gain the advantage of
being able to work an increased number of bars by very simple means.

page_text: COMPLETE SPECIFICATION.
We, ALFRED DAWSON of the firm of Thomas Herbert and Company of Hounds
Gate in the Town and County of the Town of Nottingham Lace Manufacturers and
EDWIN SMITH in the employment of the same firm do hereby declare the nature of
our invention for IMPROVEMENTS IN WARP LACE MACHINES and in what manner
the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
Figures 1 and 2 are sectional views showing the relative position of the operating
. instruments in a warp lace machine in which we employ combs in conjunction with
points.
Figures 3 and 4 are sectional views showing the relative position of the
operating instruments in a fast warp lace machine of the ordinary construction in
which we employ combs in conjunction with hooks.
The object of our invention is to facilitate the working of an increased number
of fancy bars in a warp lace machine. The chief obstacle in the way of attaining
which has been the necessity for working the fancy bars close to the needles.
Our Improvenients enable us to place the fancy bars at an increased distance
from the needles, thus allowing a greater number of bars to be worked. In the
first modification the various instruments we employ in our improved machine
shown in the sectional views Figures 1 and 2 consist of latch needles A which are
cast in leads and secured to a needle bar which has to and fro horizontal
movements communicated to it, Points B also cast in leads and secured to a bar
which has rising and falling movements as well as to and fro rocking movements.
A pillar bar carrying leads of thread guides D which have rising and falling
movements in addition to a longitudinal movement which latter is obtained from a
jacquard or a cam wheel at one end of the machine. Combs G₁ cast in leads and
secured to a bar which has to and fro horizontal or approximately horizontal
movements working in and out of the fancy threads E which are carried by
perforated steel bars F operated by a jacquard at one end of the machine. The
movements of the bars carrying the various instruments are obtained by links and
truck bearing levers operated by cams or the links are operated by eccentrics on a
rotating shaft or shafts in the usual way. The facing bar C is fixed immediately
above the needles so as to bring the loops of the fabric well over the heads of the
needles.
The combined movements of the various instruments are as follows.
While the points B are laying the previous selection of threads on the needles
and the combs G are at the front in the position shown at Figure 1 the steel bars F
carrying the fancy threads E are moved laterally to the right or left, as required
for the pattern, by the jacquard or its equivalent, the combs G are then pushed
into the fancy threads while the points B descend outside and in front of the fancy
threads, and the needles A come forward through the loops to receive the threads

page_text: lapped on them by the guides D of the pillar bar, When the points are at their
lowest and the combs are at about their furthest through the fancy threads, the
points enter into the fancy threads at or near the top of the combs as shown at
Figure 2 and rise from there taking the various traversed threads up to the needles,
At the same time the needles are drawn back having received the lap of the
threads from the pillar bar guides, the facing bar keeping the fabric in position and
knocking the loops over the heads of the needles, the combs in the meantime being
drawn out of the fancy threads the course is thus finished the movements being
repeated for each course. In the second modification shown in the sectional views
Figures 3 and 4 we combine the combs G with the operating instruments used in
a fast warp lace machine of the ordinary construction. In this arrangement the
fancy threads E are taken from the combs G by the hooks C. The working of the
needles A the points B and the pillar bar guides D being well known need no
description. The combs are by preference placed underneath the needle bar and
are moved in the manner herein before described, but at the back of the fancy
threads E, and the hooks working in the ordinary manner take the traversed fancy
threads from the combs when the instruments are approximately in the position
shown at Figure 4.
We wish it understood that we do not confine ourselves to the use of one pillar
bar in either modification as two or more may work at the same time if necessary,
and bearded needles with a presser bar may be employed in place of latch needles
if desired, the perforated steel bars may be placed above the needles if preferred
the other parts of the machine being arranged accordingly.
Having now particularly described and ascertained the nature of our said
Invention and in what manner the same is to be performed we declare that what
we claim is
The employment in a warp lace machine of combs G or similar instruments in
conjunction with points B (Figures 1 and 2) or hooks C (Figures 3 and 4)
operating substantially as described and illustrated in the Drawings annexed.
.00.
Witness,
H. W. GOUGH, C.E.,
Nottingham.
ALFRED DAWSON.
EDWIN SMITH.