IMPROVEMENTS IN LOOMS FOR WEAVING, AND IN APPARATUS CONNECTED THEREWITH
Year: 1879

page_text: LETTERS PATENT to George Brook, the younger, and Joseph Sykes, both of
Huddersfield, in the County of York, Woollen Manufacturers, for the Invention
of "IMPROVEMENTS IN LOOMS FOR WEAVING, AND IN APPARATUS CONNECTED
THEREWITH."
Sealed the 12th August 1879, and dated the 15th February 1879.
PROVISIONAL SPECIFICATION left by the said George Brook and Joseph
Sykes at the Office of the Commissioners of Patents on the 15th February
1879.
GEORGE BROOK, the younger, and JOSEPH SYKES, both of Huddersfield, in the
County of York, Woollen Manufacturers. "IMPROVEMENTS IN LOOMS FOR WEAVING,
AND IN APPARATUS CONNECTED THERE WITH."
This Invention relates,―
Firstly. To looms having rising and falling shuttle boxes, and our improvements
therein consist in operating the said shuttle boxes by an arrangement of levers and
rods arranged in the following manner :-
To the lower part of the end frame of the loom is hinged a lever, one end of
which is connected by a forked rod to the shuttle boxes, and the other end is con-
nected by a rod to the ordinary shuttle box lever.
Secondly. Our Invention relates to mechanism for communicating motion to the
jacquard apparatus. Instead of employing the ordinary cam on the crank shaft,
for this purpose we make use of a simple cain, crank, or eccentric having a regular
motion along with the crank shaft, which cam, crank, or eccentric by means of suit-
able levers and rods communicates oscillatory motion to a toothed segment, which
gears with a pinion fixed on the end of the central shaft of the jacquard apparatus.
By this arrangement the jacquard works with much less vibration than heretofore,
and the speed of the loom can be increased.
Thirdly. Our Invention relates to the use of mechanism to enable the weaver to
perform the operation of "picking back," and is applicable to looms in which the
peg cylinder is turned intermittently by ratchet wheel and catch. We purpose to
employ two ratchet wheels, having the teeth pointing in opposite directions, and
also two catches, one of which pushes the ratchet wheel in the usual manner, and
the other, which is hooked, draws the wheel in the opposite direction to the first
one. The peg cylinder can thus be made to revolve in either direction by simply
changing the catches.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said George Brook and Joseph Sykes in the Great Seal Patent Office
on the 15th August 1879.
GEORGE BROOK, the younger, and JOSEPH SYKES, both of Huddersfield, in the
County of York, Woollen Manufacturers. "IMPROVEMENTS IN LOOMS FOR WEAVING,
AND IN APPARATUS CONNECTED THEREWITH."
This Invention relates,―
Firstly. To looms having rising and falling shuttle boxes, and our improvements
therein consist in operating the said shuttle boxes by an arrangement of levers and
rods arranged in the following manner: To the lower part of the end frame
of the loom is hinged a lever, one end of which is connected by a forked rod to
the shuttle boxes, and the other end is connected by a rod to the ordinary shuttle
box lever.
T
Secondly. Our Invention relates to mechanism for communicating motion to the
jacquard apparatus. Instead of employing the ordinary cam on the crank shaft,
for this purpose we make use of a simple cam, crank, or eccentric, having a regular
motion along with the crank shaft, which cam, crank, or eccentric, by means of
suitable levers and rods, communicates oscillatory motion to a toothed segment,
which gears with a pinion fixed on the end of the central shaft of the jacquard
apparatus. By this arrangement the jacquard works with much less vibration than
heretofore, and the speed of the loom can be increased.
Thirdly. Our Invention relates to the use of mechanism to enable the weaver to
perform the operation of "picking-back," and is applicable to looms in which the
peg-cylinder is turned intermittently by ratchett wheel and catch. We propose to
employ two rachet wheels, having the teeth pointing in opposite directions, and
also two catches, one of which pushes the ratchet wheel in the usual manner, and
the other, which is hooked, draws the wheel in the opposite direction to the first
The peg cylinder can thus be made to revolve in either direction by simply
changing the catches.
one.
In order that our Invention may be more readily understood we herein give
reference to the accompanying Sheets of Drawings illustrative thereof.
Fig. 1 is an end elevation of a loom, and Fig. 2 is front view of same. These
Figs. contain such parts of the loom as are necessary for the explanation of the first
and second parts of our Invention. A are the shuttle boxes, to the back of which
is attached the rods B connected to the lever C, which is hinged upon the stud D
fixed to the loom end frame. About the centre of the lever C is a rod E, which is
also connected with the ordinary box lever F midway between the fulcrum G and
the steps H. The box lever F being actuated in the usual manner, its motion is
imparted to the shuttle boxes through the rods B and E and lever C. By operating
the shuttle boxes in this manner we are enabled to hinge the slay swords underneath
the loom instead of upon the top rail, as is customary in heavy looms, whereby we
gain increased speed and steadiness in working.
The operation of the jacquard apparatus is effected by means of the pinion J,
toothed segment K, rod L, bent lever M, and rod N, connected to a pin P on the
fly wheel mounted on the end of the crank shaft. The lever M and rod N are
connected by what is commonly known as a universal joint, which allows the rod
to follow the motion of the crank pin P without lateral strain upon the lever. This
method of operating the jacquards is preferable to the ordinary one, more particu-
larly in fast looms, as the parts being light and well balanced do not acquire much
momentum whilst working, and consequently there is less jar or shaking at each
change in the direction of their motion. Also a plain cam or crank on the crank
shaft is all that is required for communicating motion, thus dispensing with the
necessity of a specially formed cam such as has hitherto been used.

page_text: The third part of our Invention is illustrated in Fig. 3, which represents a portion
of a jacquard apparatus, in which the knives work horizontally, being operated by
the levers a. To one of these levers is fixed a catch b, which gears with the ratchett
wheel c and turns the pegging barrel. Our improvements consist in using a second
catch d, and also a second ratchet wheel e, having its teeth cut opposite to those of
the wheel c, so that by taking the first catch out of gear and substituting the second
one, the motion of the peg cylinder is reversed. By this arrangement the weaver is
enabled to give undivided attention to the weaving mechanism when picking
back.
Having thus fully described the nature of our said Invention, and shown by
Drawings in what manner the same is to be performed or carried into practical
operation, we would have it understood that what we claim as our Invention is,-
CLAIMS.
Firstly. The arrangement of parts for operating the shuttle boxes, substantially
as herein shewn and described.
Secondly. The employment of a toothod segment and levers for communicating
motion to the jacquard apparatus, substantially as herein shewn and described.
Thirdly. The employment of double ratchets wheels and catches for operating
the pegging cylinder of jacquard apparatus in either direction, as herein shewn and
described.
In witness whereof, I, the said Joseph Sykes, for and on behalf of myself and
the said George Brook, the younger, have hereunto set my hand and seal,
this Twelfth day of August, in the year of our Lord One thousand eight
hundred and seventy-nine.
JOSEPH SYKES. (L.s.)