Improvements connected with the Jacquard Mechanism of Looms for Weaving.
Year: 1893

page_text: Date of Application, 15th July, 1893
Complete Specification Left, 5th Apr., 1894-Accepted, 5th May, 1894
PROVISIONAL SPECIFICATION.
Improvements connected with the Jacquard Mechanism of Looms
for Weaving.
I, JAMES HOLLINGWORTH, of Dobcross Loom Works, Dobcross, in the County
of York, Power Loom Maker, do hereby declare the nature of this invention (which
invention has been communicated to me from abroad by William Wattie, of
Worcester, Massachusetts, one of the United States of America, Machine Maker)
to be as follows:-
This invention relates to that class of loom commonly called the Hollingworth
and Knowle's loom, in which the pattern chain is composed of metal tubes and
pulleys and they are employed to select and operate indicator levers and toothed
vibrator gear for operating the shuttle boxes or healls. The object of my present
invention is to dispense with the metal pattern chain composed of metal tubes and
pulleys and use instead thereof perforated cards or peg lags.
In carrying out my invention I make use of a pattern chain cylinder attached to
a pair of swinging or pendulous arms which receive their oscillatory motion from
a connecting rod and bell crank lever operated by a revolving cam.
The pattern
cards are swung over the pattern cylinder and as the said cylinder is oscillated
backwards and forwards it strikes or otherwise (acccording to perforations) against
one or other of a pair of needles connected to a pivotted lever carrying a projecting
stud riding in a slot formed in the lower arm of a forked lever, one set of such
needles and forked arm for each indicator lever. Each arm of this forked lever,
is suitably notched and the said forked lever is pushed backward by a double
winged oscillating horizontal bar, such double winged bar, being made, to rock on
its fulcrum by a connecting rod and crank from one of the ordinary revolving cylinder
gears. One end of the double forked lever is connected to a two armed crank
mounted loosely on a shaft, the opposite end of the crank carrying a bowl, so that
the backward motion of the double forked lever causes the bowl to come on the
underside of one of the indicating levers which is raised thereby, the effect of which,
is to lift the toothed vibrator gear into mesh with the upper cylinder gear, whilst the
opposite motion of the double forked lever removes the pulley from underneath the
indicator lever allowing the said lever to drop, in doing which, the toothed vibrator
gear meshes with the lower cylinder gear and thus the desired changes are obtained
according to the perforations or otherwise in the pattern cards. The pattern
cylinder is turned over one quarter of a revolution every time it recedes or moves
outwardly for the purpose of presenting a fresh card to the needles and this is done
by a hooked finger catching onto a stud projecting from the end of the pattern
cylinder but if by any chance, such as the stopping of the loom or other causes, the
pattern cylinder is only partially rotated and not a full quarter of a revolution,
another catch is employed hooked the opposite way to the one just described, so
that on the return movement of the pendulous arm, the partially revolved cylinder
would be put back or re-instated to the position it occupied before being partially
rotated.
Dated this 14th day of Jul 1893
TASKER & CROSSLEY,
Huddersfield, Agents.

page_text: COMPLETE
SPECIFICATION.
Improvements connected with the Jacquard Mechanism of Looms:
for Weaving.
I, JAMES HOLLINGWORTH, of Dobcross Loom Works, Dobcross, in the County
of York, Power Loom Maker, do hereby declare the nature of this invention
(which invention has been communicated to me from abroad by William Wattie, of
Worcester, Massachusetts, one of the United States of America, Machine Maker),
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 that class of loom .commonly called the Hollingworth
and Knowle's loom, in which the pattern chain is composed of metal tubes and
pulleys and they are employed to select and operate indicator levers and toothed
vibrator gear for operating the shuttle boxes or healds. The object of my present
invention is to dispense with the metal pattern chain composed of metal tubes and.
pulleys and use instead thereof perforated cards or peg lags..
Referring to the drawings
Fig. 1 is a side view of sufficient portions of the head motion of the Hollingworth
and Knowles. loom above referred to, with my improvements applied thereto,
shewing one position of the operative parts, with the swinging pattern chain frame
in its inward position, and the vibrator gear 4 in engagement with the upper
cylinder gear 2; the front side of the head frame, and of the swinging pattern
chain frame is removed for the sake of clearness..
Fig. 2 corresponds to Fig: 1, but shews the swinging, pattern chain frame, in its
outward position, and the vibrator gear 4 in engagement with the lower cylinder.
gear.3.
Fig. 3 is an end view of the swinging pattern chain frame, and other parts,
looking in the direction of arrow a, Fig. 1; some of the parts are left off for the
sake of clearness.
In the accompanying drawings, 1 is the head frame, in which are supported the
several operative parts. 2 and 3 are the upper and lower cylinder gears, 4. the
vibrator gear, 5 the vibrator lever, and 6 the indicator lever, all of the usual
construction in this class of loom.
7 is the upright shaft for driving, (through bevelled gears not shewn), the upper
and lower cylinder gears 2 and 3, in the usual way.
I will now proceed to describe my improvements combined with the several parts
of the head motion above referred to. Upon the upright shaft 7 is fast a cam 8
having a cam groove 81 in the periphery thereof, in which is adapted to travel a
small pulley mounted on a pin in one end of the bell crank lever 9 pivoted on a
stud 10, fast in the lower part of the frame 1, as shewn in Figs. 1 and 2. To the
opposite end of the bell crank lever 9 from that which is operated on by the
cam 8, is pivoted one end of the horizontal arm or connector 11, the other end of
said connector 11 being attached to a pin 12, secured to the side 13' of the
swinging frame 13, see Fig. 3, which consists of two arms 131 and 13", (the front
arm 13 is not shewn in Figs. 1 and 2,) which arms are pivotedly supported at
their upper ends on shaft 14 mounted in the frame 1. In the lower ends of the
arms 13 and 13", are loosely mounted the pattern chain cylinder 16, upon which
is supported the pattern chain 17, made up of strips of cardboard or other material,
provided with perforations 18 therein, and attached together by loops 19, or
otherwise, in the ordinary way.
Through the cam 8, bell crank lever 9, and connector 11, a positive swinging
motion is communicated to the frame 13, and to the pattern cylinder 16, mounted
on the lower end of said frame. A rotary motion is communicated to the pattern

page_text: chain cylinder 16, to cause the pattern chain 17 to revolve, and the different
perforated strips forming said chain to be presented to the operating needles, by
the hook 20, pivoted at its inner end on the frame, and adapted to engage with its
outer hooked end pins 21, extending out from the four corners of one end of the
pattern chain cylinder 16, to pull the said pattern chain cylinder over as the
swinging frame is moved outwardly in the usual way.
A notched arm 22 is pivoted near to the hook 20, and preferably between said
hook 20 and the end of the pattern chain cylinder 16, so that in case of the
stopping of the loom, or for any other cause, there is only a partial rotation of the
pattern cylinder 16 by the hook 20 on the outward movement of the swinging
pattern frame, the said arm 22 will engage one of the pins 21 on the end of
the pattern chain cylinder, on the inward movement of the swinging frame, so as to
return said cylinder to its normal position, with one of the flat sides thereof
towards the needles 34 and 35, as shewn in Fig. 1.
A sliding rod 23 provided with an enlarged lower end or foot 23', adapted to
bear on the plain sides of the pattern chain cylinder 16, is supported and adapted.
to move vertically in bearings 24 upon the outer side of one of the arms of the
swinging frame 13, in this instance the rear arm 13.
A spiral spring 25 attached at one end to the arm 13' and at the other end to a
pin 26 extending out from the upper end of the vertical rod 23, tends to move
downwardly said rod 23, and to cause the same to press on the pattern chain
cylinder 16, to hold the same and prevent it from turning, except when it is
operated upon by the hook 20, or arm 22.
The mechanism, for communicating to the ordinary levers 6, the indications of
the pattern chain, consists of a series of forked levers 27, one for each indicator
lever such said levers 27 are pivoted at their inner ends on the lower end of the
double lever or arm 28, loose on a rock shaft 29, supported in bearings in the
frame.
The upper end of the double lever or arm 28, carries a small pulley 31, adapted
to engage the foot 6' of the indicator lever 6. The lower arm of the forked
lever 27 is provided with a longitudinal slot 27', in which travels a pin 32, on the
upper end of the lever 33, pivoted on a shaft 331,, supported in the frame 1.
Needles 34 and 35 are pivoted to the opposite ends of the lever 33, and the outer
free ends of said needles are supported in the bracket 36 secured to the frame 1 ;
the extreme ends of said needles 34 and 35 are acted on by the pattern surface,
and when the unperforated portion of the pattern surface is presented to the end of
one needle, the other needle will extend through a hole in the pattern surface, and
into the corresponding hole made in the pattern cylinder. (See Figs. 1 and 2.)
The forked levers 27 are operated to move the indicator levers 6, at the proper
time, by the double bladed knife 37, mounted on a rock shaft 38, supported in
bearings in the frame 1.
A positive motion is communicated to said rock shaft 38, from the lower cylinder
gear 3, by connecting rod 39, secured at one end to a crank 40, adjustably connected
to the shaft 31 of the cylinder gear 3, by a set screw 41, see Fig. 1, and secured at
its outer end to a crank 42, adjustably secured by a set screw 43 to the rock shaft 38,
see Fig. 3.
As the double bladed knife 37 is rocked backward and forward, the knives
thereon will engage with the lower hook 27" upon the lower arm of the hooked
lever 27, or the upper notch 27 on the upper arm of the forked lever 27, according
as said lever is raised into its highest position, or drawn down into its lowest
position, by the movement of the lever 33 carrying the pin 32 travelling in the
slot 27' in the forked lever 27, and operated by the needle 34 or 35.
When the lower blade of the knife 37 engages with the lower hooked end 27"
of the forked lever 27, it draws outwardly said lever until the lug 44 strikes against
the stop rod 45 supported in the frame 1, and moves the pulley 31 on the double
lever 28 away from the foot 6' on the indicator lever 6, and allows the indicator
lever to drop, carrying the vibrator gear 4 into contact with the lower cylinder

page_text: gear 3, to communicate, through the vibrator lever 5, the desired movement to the
harness or drop box, as shewn in Fig. 2.
When the upper blade of the double bladed knife 37 engages the upper
notch 27 in the upper arm of the forked lever 27, it moves said lever backward
until it strikes against the stop rod 45, and causes the pulley 31 to be moved under
the foot 6' on the indicator lever so as to raise said indicator lever, whereby the
vibrator gear 4 will engage with the upper cylinder gear 2, as shewn in Fig. 1.
After the forked lever 27 has been moved forwardly or backwardly, and operated
the indicator lever, as above described, it remains in that position until one of the
needles 34 or 35 is again operated by the pattern surface, to move the lever 33,
and raise or lower the forked lever 27, and thus cause the same to be engaged
by the double bladed knife 37.
From the above description in connection with the drawings, the operation of
the indicating mechanism, actuated by the pattern surface, will be readily
understood by those skilled in the art. It will be observed that a positive motion
is communicated to the rocking double bladed knife 37, and said double bladed
knife 37 will operate the forked lever 27, to cause the same to operate the indicator
lever 6, to raise said lever, or to allow the same to drop, according as the upper
notched arm of the forked lever 27 is engaged by the upper blade of the double
bladed knife 37, or the lower hooked arm of the forked lever 27 is engaged by the
lower blade of the double bladed knife 37.
It will also be observed, that when either of the needles 34 or 35 is operated, by
the end of the needle coming against the non-perforated part of the pattern chain,
a positive up or down motion is communicated to the forked lever 27, through the
pin 32, on the pivoted lever 33, travelling in the slot 27' in the lower arm of said
forked lever 27, and said lever will be engaged by the upper or lower blade of the
double bladed knife 37, and will be moved backward or forward, so that a positive
motion, at the proper time, will be communicated to the forked lever 27, and
through said lever, and the double lever or arm 28, carrying the roll 31, to the
indicator lever 6. In case it is not desired to use the pattern chain mechanism
shewn in the drawings, the same may be readily removed from the loom, and the
ordinary pattern chain shaft substituted for the rock shaft 29, and the pattern
chain cylinder, and the ordinary metal pattern chain mounted thereon, to act on
the indicator lever 6 in the usual way.
It will be understood that the details of construction of some of the parts shewn
in the drawings may be changed if desired.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
-
Firstly. In a loom, the combination with the upper and lower cylinder gears,
vibrator gear, indicator lever, and the pattern surface supported on a swinging
frame, and means for swinging said frame, and for rotating the pattern surface or
chain, of intermediate mechanism between the indicator lever, and the pattern
surface, consisting of a forked lever 27. provided with a slot and pivoted to a
double lever or arm loose on a rock shaft, and carrying a pulley which engages
the indicator lever, and said double lever or arm, and rock shaft, and a double
bladed knife supported on a rock shaft, and adapted to engage and operate
said forked lever, and said rock shaft, and means for operating the same, and
a pivoted lever 33, provided with a pin which engages a slot in the forked lever 27,
and the indicating needles pivoted at their inner ends to said lever 33, with their
free ends adapted to be acted on by the pattern surface, for the purpose stated,
substantially as shewn and described.
Secondly. In a loom of the class described, the combination with the indicator
lever, of means for communicating the indications of the pattern surface to said
indicator lever, consisting of a double lever or arm 28 loose on a rock shaft 29
with one end adapted to engage the indicator lever 6, and the other end pivoted

page_text: to a forked lever 27, provided with a slot; also a double bladed knife 37
supported on a rock shaft and adapted to engage and operate said forked lever,
together with a pivoted lever 33 provided with a pin adapted to travel in a slot.
in the forked lever, and two indicating needles pivoted at their inner ends upon
said pivoted lever, upon opposite sides of its pivot point, with their free ends.
adapted to be operated on by the pattern surface, for the purpose stated,.
substantially as set forth.
Dated this 4th dow of Anril 1804
TASKER & CROSSLEY,
Huddersfield, Agents.