IMPROVEMENTS IN LOOMS FOR THE MANUFACTURE OF BRAIDED OR TWISTED FABRICS to be as follows:
Year: 1884

page_text: I, WILLIAM ROBERT LAKE, of the firm of Haseltine Lake & Co, Patent Agents,
Southampton Buildings, in the County of Middlesex do hereby declare the nature
of said invention for "IMPROVEMENTS IN LOOMS FOR THE MANUFACTURE OF
BRAIDED OR TWISTED FABRICS to be as follows:-
"
This invention relates to an arrangement of apparatus for causing the curvilinear
motion of spools and is applicable to all kinds of looms for the manufacture of
braided or twisted fabrics whether manufactured with meshes or not.
The characteristic and main parts of this invention are trays which have
horizontal or vertical shafts and are provided with four circular depressions having
the same curves as those described by the projecting portions of the trays.
If carriages with spools are arranged between the said trays so as to fill exactly
the space formed by the notches of two neighbouring trays they will be carried
forward by the trays when set in motion.
The result of this arrangement is that all the carriages with spools which have to
be actuated each belong to two trays and that they cannot receive at the same time
a motion from both; the number of trays composing a machine must be divided
into two groups which by their alternate motion can always set all these carriages
with spools in operation but in one order or the other, according as they are carried
away by one or the other of the trays.
This condition is fulfilled by using a rack to which is imparted an alternate
movement for actuating the said trays by means of pinions and ratchet wheels
mounted upon shafts which transmit motion to the shafts of the trays by means
of bevel pinions. The movement of the rack in one direction causes the rotation of
the trays belonging to one group, whereas the rotation of the trays of the other
group is caused by the motion of the rack in a reverse direction.
For plain fabrics in which the rack has for its object to constantly set in motion
the same number of trays the use of a Jacquard mechanism is not necessary but in
the case of complicated fabrics it is necessary to use such mechanism, determining
by the piercing of cardboard which trays.should operate and which should stand
still

page_text: As above stated the carriages with spools are placed between the trays, but
the latter having four depressions two supplementary carriges with spools can be
stored upon each tray, in case they are required. These trays form a double set
and hold the carriages with spools in two points thereby ensuring their stability
and causing them to operate properly. The stability is moreover ensured by a
projection of the carriage containing the spools arranged between the two tray's
which act conjointly so that they may not be disengaged therefrom in a longitudinal
direction.
•
The above described trays operate in a two fold manner relatively to the carriages
with spools, that is to say, firstly. by their motion they displace the carriages in
order to interweave the threads, secondly, when at rest they serve as guides
concurrently with their external casing to the spool carriages carried away by the
trays set in motion. These trays act thus upon the spool carriages as regular levers
causing them to move in circular tracks formed by the trays and their external
casing.
Dated this 22nd day of Annil 1991.
HASELTINE, LAKE.& Co.,
For the Applicant.

page_text: I, WILLIAM ROBERT 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 LOOMS FOR THE MANUFACTURE OF BRAIDED
OR TWISTED FABRICS" 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 apparatus for causing the curvilinear motion of spools,
and is applicable to all kinds of looms for the manufacture of braided or twisted
fabrics with or without meshes.
In order to explain clearly the principle of the invention and the means of
carrying the same into practice, I have represented in the accompanying drawing
a loom for manufacturing braided fabrics which loom is provided with the improved
spool motion.
Figure 1 shews in vertical section a portion of the said loom, and
Figure 2 is a plan of the said portion.
The principal parts of the improved apparatus are plates or trays a a a,
Figures 1 and 2, mounted upon vertical shafts b b b. These plates are each
provided with four circular.depressions in its periphery and are arranged, as shewn
in Figure 2, beside one another in such a manner that the curve of each depression
in the plates is an arc of the circle described by the points or projecting
portions ccc of the adjacent plate when revolving.
霹
If bobbin or spool carriages d d d Figure 1, are arranged between the platos so
as to fill at e and at e' the spaces formed by the depressions of two neighbouring
plates, they will be carried forward by the plates when set in motion.
The result of this arrangement is that the spool carriages each belong to two
plates, but cannot receive at the same time a motion from both plates. The entire
series of plates in a loom must therefore be divided into two groups, which by their
alternate motion can always set all the spool carriages in operation, but in one
order or the other according as they are moved by one or the other group of plates.
This condition is fulfilled by causing the rotation of the plates through the
medium of a circular rack A mounted loosely upon the driving shaft B. An
oscillating motion is imparted to the said rack by a bell-crank lever C, Figure 2,
pivottod at fto a fixed part of the machine and actuated through the rod D by the
excentric E fixed upon the driving shaft B.
The motion of the rack is transmitted to the shafts of the plates through the
medium of bevel pinions g g' and small horizontal shafts h, which carry at their
extremities, towards the centre of the loom, the pinions i and clutches j having
ratchet-teeth. The part of each clutch which is integral with the pinion i is
immovable upon its shaft h in a longitudinal direction but free to rotate thereon,
whilst the counter-part of the clutch is immovable in an angular direction upon
the shaft, but free to slide thereon in a longitudinal direction.
On reference to Figure 2 it will be seen that the teeth of every two adjacent
clutches are inclined in opposite directions, whereby two adjacent clutches cannot
operate at the same time; the entire series of plates is thus divided into two groups
operating alternately,
In consequence of this arrangement the rack acts upon each plate only in its
forward or in its backward motion, according to the direction of the inclination of
the clutch teeth.
For plain fabrics, in which the rack has for its object to constantly set in motion
the same number of plates in each group, the use of a Jacquard mechanism is not

page_text: necessary, but in the case of complicated fabrics; it is requisite to use such
mechanism or similar appliances, in order to force through the medium of per-
forated cards, the lever k of each clutch in one or the other direction, thereby
determining which clutches are to engage and consequently which of the plates
shall operate.
It has been stated above that the spool carriages are placed between the plates,
but as the latter have four depressions two supplementary carriages can be used in
connection with each plate, if required.
The above described plates fulfil two distinct functions with regard to the spool
carriages, namely in the first place, when in motion, they operate the carriages in
order to interweave the threads, and in the second place, when at rest, they serve,
together with their casings X X, as guides to the spool carriages moved by the
plates set in motion. These plates thus act upon the spool-carriages as levers,
causing them to move in circular tracks formed by the plates themselves and their
external casing.
In the aforesaid loom the plates are arranged in a circle and the shafts vertically,
but it is to be understood that any other suitable arrangement can be adopted.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declaro that what
I claim is
The combination and form of the plates above described, the alternate motion
and rest of which enable the circular movement of the spools to be effected so as
to twist any thread with the neighbouring thread on the right or left hand side,
without the intervention of any other parts than the plates themselves and their
driving mechanism.
Dated thin 00nd of T100=
HASELTINE, LAKE & Co.,
For the Applicant.