IMPROVE- MENTS IN LOOMS FOR WEAVING BRUSSELS CARPETS AND OTHER LIKE FABRICS
Year: 1878

page_text: LETTERS PATENT to Edward Robinson and Thomas Greenwood, both of
Kidderminster, in the County of Worcester, for the Invention of "IMPROVE-
MENTS IN LOOMS FOR WEAVING BRUSSELS CARPETS AND OTHER LIKE FABRICS."
Cooled the 95th Tune 1878 and dated the 12th April 1878.
Sealed the 25th June 1878, and dated the 12th April 1878.
PROVISIONAL SPECIFICATION left by the said Edward Robinson and
Thomas Greenwood at the Office of the Commissioners of Patents on the
12th April 1878.
EDWARD ROBINSON and THOMAS GREENWOOD, both of Kidderminster, in the
County of Worcester. "IMPROVEMENTS IN LOOMS FOR WEAVING BRUSSELS CARPETS
AND OTHER LIKE FABRICS."
Our Invention of improvements in looms for weaving Brussels carpets and other
like fabrics consists, firstly, of an improved wire motion. This consists in employing
in substitution for rods, levers, catch, and balance weight, such as are used in what
is know as "Moxon and Clayton's wire motion," a slotted arm or lever with a spiral
spring; the said arm or lever is connected with a stud on the side of the carriage
for carrying in and out the wires. When the wire is carried in the said spring
adjusts itself to the length of the wire heads and relieves the lever of the working
carriage from any undue pressure or jar in carrying in and out the wires. The said
wires are carried over by a hook worked by a tappet and lever from the bottom
shaft with a sliding rod connected to the end of the lever, and working in a groove
over the lathe bottom. The wires are held fast to the carriage by an adjustable
spring, and the wire heads carried to the end of the carriage slide and put in an
upright position by a curved plate fixed to the carriage. The slotted arm or lever
is connected to a straight or curved lever working on a stud fixed to the front rail
of the loom; the motion to this lever is given by a crank with stud and loose block
working in a slot cut in the said lever.

page_text: Our Invention has reference, secondly, to the break pulley, and this part of the
Invention consists in casting the break pulley and pinion wheel in one, and in
fixing the break to the loom side with a stud, and working the said break by a
straight rod connected to the crank on the end of the tube shaft.
Our Invention consists, thirdly, in making the driving pulley on the pinion shaft
into a loose pulley instead of being a fast pulley as heretofore, and in enlarging the
boss of the said pulley and fixing thereon an adjustable friction clip driven by a
stud fixed into an arm or disc keyed on the pinion shaft. The said pulley and
friction clip are self-lubricating from a recess cast round the boss of the pulley, and
charged with lubricating matter.
Our Invention consists, fourthly, in making the large driving wheel on the crank
shaft into a loose wheel, and in enlarging the boss of the said wheel and fixing
thereon an adjustable friction clip driven by a stud fixed in the rim of the small
picking wheel, the said picking wheel being, keyed on the crank shaft of the
loom, and the driving wheel and friction clip made self-lubricating from a recess
cut round the boss of the wheel and friction clip.
Our Invention consists, lastly, of an improved tappet for working the jacquard,
and this part of the Invention consists in fixing one single elliptical tappet on to
the bottom shaft of the loom; on the rim of this tappet there revolves one large
hollow faced pulley, which pulley is carried on a pin fixed in a double lever working
on a stud fixed in the loom side. On the end of the said double lever is fixed a
connecting rod for working the jacquard.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Edward Robinson and Thomas Greenwood in the Great Seal Patent
Office on the 12th October 1878.
EDWARD ROBINSON and THOMAS GREENWOOD, both of Kidderminster, in the
County of Worcester. "IMPROVEMENTS IN LOOMS FOR WEAVING BRUSSELS CARPETS
AND OTHER LIKE FABRICS."
Our Invention of improvements in looms for weaving Brussels carpets and other
like fabrics consists, firstly, of an improved wire motion. This consists in employing
in substitution for rods, levers, catch, and balance weight, such as are now used in
what is known as "Moxon and Clayton's wire motion," an arm or lever with a
spiral spring; the said arm or lever is connected with a stud on the side of the
carriage for carrying in and out the wires. When the wire is carried in the said
springs adjusts itself to the length of the wire heads and relieves the lever of the
working carriage from any undue pressure or jar in carrying in and out the wires.
The said wires are carried over by a hook worked by a tappet and lever from the
bottom shaft with a sliding rod connected to the end of the lever, and working in a
groove over the lathe bottom. The wires are held fast to the carriage by an
adjustable spring, and the wire heads carried to the end of the carriage slide and
put in an upright position by a curved plate fixed to the carriage. The arm or
lever works on a stud fixed to the front rail of the loom; the motion to this lever is
given by a crank and link.
Figure 1 of the annexed Drawings is an end elevation; and Figure 2, a front
clevation in which our improved wire motion is represented.
a is a stud bolted to the front rail of the loom; c is a lever centred on the stud a
and worked by a crank & from the side shaft e, the lever c and crank & being
connected together by the link f.
The lever c is connected to the carriage g by the sliding or adjustable link h.
When the wiro is carried in by the carriage g the spring i adjusts itself to the
length of the wires and relieves the lever c from any undue pressure or jar in
carrying the wires in and out.
The wires are carried over by the hook ; which is made fast to the square sliding
bar by means of two small screws 1, l. The bracket m is bolted to the side of the
loom for the bar k to slide through.
The hook is worked by the tappet n which is koyed on the bottom shaft o.
On the rim of this tappet a bowl p revolves, the said bowl being carried on a stud q
made fast to the end of the lever r. This lever is carried on a stud s fixed to the
loom side t. On the other end u of this lever is fixed a stud v for enabling the
lever w to be connected to the sliding bar k.
The lever w is fixed to the bracket bolted to the loom side t; y is an adjustable'
spring fixed to the top of the carriage g to keep the wires in an upright position
and down on the slide 2.
Figure 3 is a plan of the hopper slide showing the carriage g with curved end a';
this curved end puts the wire heads in an upright position at the slide end b¹, and
ready to be withdrawn by the small hook c'.
Our Invention has reference, secondly, to the break pulley, and this part of the
Invention consists in casting the break pulley and pinion wheel in one so as to get
them as near to the loom side as possible, and in fixing the break to the loom side
with a stud, and working the said break by a straight rod connected to the crank
on the end of the tube shaft.
This part of our Invention is represented in the end elevation, Figure 4, and
front elevation, Figure 5; h is the break pulley, and i, the pinion wheel, which are
cast together; ¹ is the break fixed to the loom side by a stud h²; 3 is the break
rod which is straight and is connected to the crank on the end of the tube
shaft k

page_text: Our Invention consists, thirdly, in making the driving pulley on the pinion shaft
into a loose pulley instead of being a fast pulley as heretofore, and in enlarging tho
boss of the said pulley, and fixing thereon an adjustable friction clip driven by a
stud fixed into an arm or disc keyed on the pinion shaft. By this means the friction
or pressure of the driving pulley on the shaft can be adjusted to the degree required
for driving the loom, and so that when the loom knocks off or anything occurs to
to give undue strain, the wheel will continue to revolve. The said pulley and
friction clip may be made self-lubricating from a recess cast round the boss of the
pulley and charged with lubricating matter.
This part of our Invention will be understood on reference to Figure 6; c is the
driving pulley loose on the driving shaft b. The boss a of the pulley is enlarged
and turned on the outside to receive the clip b¹ which is bored to fit the boss easy,
and is adjusted by the bolt b².
The clip is driven by a lug b³ cast on the disc b, which disc is keyed on the
shaft o.
The clip b¹ is adjusted to a sufficient degree of friction or pressure for driving the
loom, but when the loom knocks off, or anything occurs to give undue strain, the
pulley will continue to revolve until the driving strap is thown on to the loose
pulley g.
с
The same result will be obtained by the modified arrangement represented in
Figures 4 and 5, in which the boss a is keyed on the pinion shaft b, and tho
driving pulley c is bored to fit the boss a casy.
The pulley c is split at d and adjusted by a bolt e and screw to the friction or
pressure requisite for driving the loom.
Our Invention consists, fourthly, in making the large driving wheel on the crank
shaft into a loose wheel, and in enlarging the boss of the said wheel, and fitting
thereon an adjustable friction clip, driven by a stud fixed in the rim of the sınall
picking wheel, the said picking wheel being keyed on the crank shaft of the
loom. By this means the friction or pressure of the driving wheel on its shaft can
he adjusted so as to continue to revolve when the loom knocks off.
The driving wheel and friction clip may be made self-lubricating from a recess
cut round the boss of the wheel and friction clip.
This part of our Invention is also reqresented in Figures 4 and 5; is the driving
wheel which is bored to fit the crank shaft m easy; the boss of the wheel is turned
to receive the clip n which fits the said boss easy, and is adjustable by means of the
bolt o.
The clip n is driven by a stud p' cast on to the small picking wheel p, and this
wheel is keyed on the crank shaft m. The driving wheel ✓ assists the driving
pulley c and revolves round the shaft m when the loom knocks off, answering the
same purpose as the driving pulley c.
The same effect will be obtained by the modified arrangements represented
respectively in Figures 7 and 8; in Figure 7, the boss of the driving wheel is
split on one side and adjusted by the bolts ; in Figure 8, the driving wheel
is adjusted to the shaft by bolts 1, 12, of key or cotter form which press on a loose
block 1.
Our Invention consists, lastly, of an improved tappet for working the jacquard,
and this part of the Invention consists in fixing one single elliptical tappet on to
the bottom shaft of the loom. On the rim of this tappet there revolves one large
hollow face pulley, which pulley is carried on a pin fixed in a double lever working
on a stud fixed in the loom side. On the end of the said double lever is fixed a
connecting rod for working the jacquard.
This part of our Invention will be understood on reference to Figures 9, 10,
and 11, which represent tappets suitable respectively for velvet single shed and
double shed weaving. In each case the tappet is keyed on the bottom shaft o of
the loom.
On the rim of the tappet there revolves a pulley or bowl b, Figure 12 this

page_text: pulley or bowl is fixed in a double lever at the treadle box end, and from the end
of this double lever is fixed the connecting rod for working the jacquard. The said
lever works on a stud fixed in the loom side.
And having now described the nature of our said Invention and in what manner
the same is to be performed, we declare that we claim as our "Improvements in
Looms for Weaving Brussels Carpets and other like Fabrics,"-
First. The improved wire motion arranged and working substantially as heroin-
before described and represented in the annexed Drawings.
Second. Casting the break pulley and pinion in one, substantially as and for the
purpose herein-before described, and represented in the annexed Drawings.
Third. Making the driving pulley on the pinion shaft a loose pulley, and ad-
justing its friction or pressure on the shaft, substantially as and for the purpose
herein-before described, and represented in the annexed Drawings.
Fourth. Making the large driving wheel on the crank shaft into a loose wheel,
and adjusting its friction or pressure on the shaft, substantially as and for the
purpose herein-before described, and represented in the annexed Drawings.
Fifth. The improved tappet or mechanism for working the jacquard, arranged
and working substantially as herein-before described with reference to the annexed
Drawings.
In witness whereof, I, the said Thomas Greenwood, on behalf of myself and
the said Edward Robinson, havo horeunto set my hand and seal, this
Eleventh day of October, One thousand eight hundred and seventy-
eight.