IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1883

page_text: LETTERS PATENT to William Henry Tristram, Cotton Spinner and Manu-
facturer, and Henry Brereton, Manager, both of Halliwell near Bolton in the
County of Lancaster, for an Invention of "IMPROVEMENTS IN LOOMS FOR
WEAVING"
PROVISIONAL SPECIFICATION left by the said William Henry Tristram
and Henry Brereton at the Office of the Commissioners of Patents on the
21st June 1883.
WILLIAM HENRY TRISTRAM, Cotton Spinner and Manufacturer; and HENRY
BRERETON, Manager, both of Halliwell, near Bolton, in the County of Lancaster.
"IMPROVEMENTS IN LOOMS FOR WEAVING."
This invention has reference to improvements in the jacquard machine for looms
employed for fancy weaving; especially in the fitting and use of certain appliances
or improved arrangements of mechanism to the card cylinder or barrel, which has
for its object the entire removal of breakages so commonly caused, by the incorrect
working of the said card cylinder or barrel; at the same time reducing the amount
of spoiled or damaged cloth from the same source.
The ordinary method of working the sliding action of the card cylinder or barrel,
is by means of sliding arms, working in slides fixed on each side of the jacquard,
receiving their motion from the usual cranks, arms, levers, and rods from the loom.
The levers for coupling to the sliding arms are provided with slots in which work
the studs or pins on the ends of the sliding arms, thereby ensuring a reciprocating
motion. So long as these parts are in perfect order and free from wear, the action
is perfect, and the hooks and " griff" work correctly, but as soon as any wear
takes place, then the "griff" does not clear the hooks sufficiently, to allow the
needles to act positively, consequently the pattern is deranged; when the attendant
has to adjust the upright coupling rod by means of a screw, provided for the
purpose, which has the effect of equalizing the wear.
Another source of trouble is, that when the card cylinder or barrel does not
revolve correctly, causing the edge to strike against the needle board; the motion
being positive, a breakage consequently takes place, either in the joints, levers or

page_text: rods, causing considerable damage, stopping the loom for a time, with its resultant
loss, as well as damaging the cloth being woven.
To entirely dispense with these evils, we uncouple the sliding arms and levers
for driving them, placing the levers outside the aforesaid driving pins. On the
sliding arms we provide a suitable spiral spring or springs in tension, connecting
one end of each spring to the arms, and the other end to the driving lever, tho
object of which is to dispense with the slack, together with the inconvenience of
regulating the levers as before mentioned.
The principal object of this invention is that in case the card cylinder or barrel,
strikes the needle board with the edge of the said card cylinder, the motion being
positive the levers, cranks and rods continue their operation without any breakage;
the difference in length being compensated for by the extended tension of the
spring or springs, which allow the driving lever and pin to part asunder until such
times as the next stroke is made, when by the tension of the spring or springs,
they assume their normal position, and so on without any breakage in the
mechanism employed; or the spoiling or damaging of cloth; at the same-time
ensuring perfect action between the needles, hooks and “griff,” which hitherto has
not been the case.
The novelty of this invention is that all breakages from the inaccurate working
of the cylinder or barrel are reduced to a minimum; also the loss from damaged
cloth. Another feature is, that the levers and rods working the same being once
-fixed, require no further adjustment; the position of the hooks and "griff" being
constantly the same.
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page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Henry Tristram and Henry Breroton in the Great Seal
Patent Office on the 19th December 1883.
WILLIAM HENRY TRISTRAM, Cotton Spinner and Manufacturer, and HENRY
BRERETON, Manager, both of Halliwell near Bolton in the County of Lancaster.
"IMPROVEMENTS IN LOOMS FOR WEAVING
"
This invention has reference to improvements in the Jacquard machine for looms
employed for fancy weaving: especially in the fitting and use of certain appliances
or improved arrangements of mechanism to the card cylinder or barrel, which has
for its object the entire removal of breakages so commonly caused by the incorrect
working of the said card cylinder or barrel: at the same time reducing the amount
of spoiled or damaged cloth from the same source.
The ordinary method of working the sliding action of the card cylinder or barrel
is by means of sliding arms, working in slides fixed on each side of the Jacquard,
receiving their motion from the usual cranks, arms, levers, and rods from the
loom, The levers for coupling to the sliding arms are provided with slots in which
work the studs or pins on the ends of the sliding arms, thereby ensuring a
reciprocating motion. So long as these parts are in perfect order and free from
wear, the action is perfect; and the hooks and "griff" work correctly, but as soon
as any wear takes place, then the "griff" does not clear the hooks sufficiently to
allow the needles to act positively, consequently the pattern is deranged, when the
attendant has to adjust the upright coupling rod by means of a screw provided for
the purpose, which has the effect of equalizing the wear.
Another source of trouble is, that when the card cylinder or barrel does not
revolve correctly, causing the edge to strike against tho neodle board, the motion
being positive, a breakage consequently takes place, either in the joints levers or
rods, causing considerable damage stopping the loom for a time, with its resultant
loss, as well as damaging the cloth being woven.
To entirely dispense with these evils we uncouple the sliding arms and levers
for driving them placing the levers outside the aforesaid driving pins. On the
sliding arms we provide a suitable spiral spring or springs in tension, connecting
one end of each spring to the arms and the other end to the driving lever, the object
of which is to dispense with the slack, together with the inconvenience of regulating
the levers as before mentioned.
The principal object of this invention is that in case the card cylinder or barrel
strikes the needle board with the edge of the said card cylinder, the motion being
positive the levers, cranks and rods continue their operation without any breakage,
the difference in length being compensated for by the extended tension of the
spring or springs, which allow the driving lever and pin to part asunder until such
times as the next stroke is made, when by the tension of the spring or springs, they
assume their normal position, and so on without any breakage, in the mechanism
employed, or the spoiling or damaging of cloth, at the same time ensuring perfect
action between the needles, hooks and griff, which hitherto has not been the
case.
In order that our said Invention and the manner of performing the same may
be properly understood we hereunto append a sheet of explanatory drawings to be
hereinafter referred to and representing a modification of our improved apparatus
from which the nature and construction of the Invention will be more clearly
understood and made manifest.
Figure 1 represents a Jacquard machine with our improvements applied. 1 is
the frame side of the machine, 2 the card cylinder or barrel, 3 the sliding arms for
giving motion to the card cylinder or barrel, 4 tho needle board

page_text: The card cylinder or barrel is carried in the usual frame on centres, secured at
the ends to the sliding arms 3, which are held in position by the slides 5, fixed on
both sides of the machine or frames 1. The sliding arms receive their motion in
the usual way from the loom being communicated to the rod 6. and the levers 7
and 8. The sliding arms 3 are provided at the opposite end to the card cylinder
with the driving pins 9, projecting sideways sufficiently to allow of contact with
the driving levers 8, which are held in position or coupled to the sliding arms by
the spiral springs 10, slightly in tension-For the purpose of securing in position
the spiral springs 10, the sliding arms 3, and the levers 8, are provided with the
brackets 11 and 12, respectively, through which the adjustable screws of the
springs 10 pass, for the purpose of increasing or decreasing the tension on the
springs, and thus take up any slack that may occur. When the cord cylinder is
moved from the needle board, the driving levers 8 operate against the driving
pins 9 in the sliding arms 3: on making the return stroke the pull is on the spiral
springs 10 which has sufficient tension to keep the driving pin 9 against the
levers 8 under ordinary circumstances of working.
In case the card cylinder does not perform its revolving action correctly, which
sometimes causes it to strike the needle board crosswise or with the edge as shewn
in Figure 2, which under the old. system of working causes serious breakdowns,
the motion being positive some parts are compelled to give way, either in the joints
levers or rods, thus stopping the loom.
The principal object of our invention is to entirely obviate this defect by
supplying a yielding or regulating action between the card cylinder and the point
from which the sliding arms receive their motion, which is accomplished by
providing the springs 10 before described.
Figure 2 shows the action of our invention in case the card cylinder 2, strikes
the needle board 4 crosswise or with the edge. "The motion from the loom through
the rod 6, levers 7 and 8 being positive as soon as the edge of the card cylinder
strikes the needle board 4, its motion is instantly stopped, when the lovers 8 leave
the driving pins 9, and complete their motion without hindrance from breakage,
the yielding or regulating action being performed by the extra tension allowed by
the springs 10. which on the return stroke compresses the levers 8 against the
driving pins 9, thus liberating the card cylinder 2, when it immediately allows it
to assume its normal position as in Fig: 1, without hindrance or loss from breakage,
and stoppage of the loom or damaged cloth.
Having now particularly described and ascertained the nature and object of our
said invention and shewn by the accompanying drawings how the same is or may
be performed or carried into practical operation, we would have it understood that
we do not confine or restrict ourselves to the one shewn or any other particular
construction of Jacquard machine, but what we claim as our invention is, the
construction and use in connection with Jacquard machines, of a yielding or
regulating apparatus placed between the card cylinder or barrel and the point
from which it receives its motion from the loom, as set forth and described in the
foregoing Specification and in the Drawings in Figs: 1 and 2. for the purposes
described and set forth, or any mere modification thereof.
In witness whereof we the said William Henry Tristram and Henry Brereton
have hereunto set our hands and seals this seventeenth day of December in the
year of our Lord One thousand eight hundred and eighty three.