A New or Improved Method of Driving the Pattern Cylinder used in Jacquard Mechanism of Looms for Weaving.
Year: 1893

page_text: Date of Application, 13th Apr., 1893
Complete Specification Left, 13th Jan., 1894-Accepted, 17th Feb., 1894
PROVISIONAL SPECIFICATION.
A New or Improved Method of Driving the Pattern Cylinder used
in Jacquard Mechanism of Looms for Weaving.
I, EDWARD HOLLINGWORTH, of the Firm of Hutchinson, Hollingworth & Co.,
Limited, of Dobcross, in the County of York, Power Loom Makers, do hereby
declare the nature of this invention to be as follows (which invention has been
communicated to me from abroad by Thomas Corcoran, residing at Peru, in the
County of Niami, and State of Indiana, Machine Maker)
This invention relates to looms for weaving but more particularly to the
harness and drop box mechanism employed in the Hollingworth and Knowle's
loom.
The object of my invention is to obtain a longer length of time in which to
operate the parts controlling the harness and drop box mechanism, and this I effect
by imparting to the pattern cylinder a continuous but fast and slow rotary motion
thereof.
My invention consists in combining one or more elliptical wheels with the gearing
employed for driving the pattern chain by means of which an intermittently fast
and slow motion is imparted to the pattern cylinder without interfering with the
continuously rotary motion thereof.
By combining elliptical toothed wheels as above described, with circular toothed
wheels, and made in such proportions, that the pattern cylinder will be made to
revolve twice the distance than formerly and thus cause two bars of the pattern
chain to be traversed instead of one bar, consequently every alternate bar of the
chain will be presented to act on the vibrator levers of the harness or drop box
mechanism, and this will permit me to carry two separte pattern chains on the said
pattern cylinder, one pattern chain of which may be used for weaving one portion
of the fabric, whilst the other pattern chain may be used for weaving the other
portion of the fabric; for example, in weaving blankets, shawls, and the like, one
portion of the pattern chain arranged upon every alternate bar may be adapted to
weave the body of the blanket or shawl, whilst the other alternate portions of
When the
the pattern chain may be adapted to weave the border of the said shawl.
body of the blanket or shawl has been woven, the weaver disconnects the driving
gear of the pattern cylinder and moves the chain one bar by his hand, so as to bring
into operation the portion of the pattern chain necessary for weaving the border of
the blanket or shawl, afterwards the gearing may be connected and the loom will
proceed to weave the border of the blanket.
My improved elliptical gearing may be combined with different classes of looms
where it is desired to have a continuous but fast and slow motion of pattern
cylinder, which it must be understood, is independent of any fast or slow motion
which may be communicated to the cylinder gears for an entirely different
purpose.
D: 10th of Amil 1802
TASKER & CROSSLEY, .
Halifax, Agents.

page_text: COMPLETE SPECIFICATION.
A New or Improved Method of Driving the Pattern Cylinder used
in Jacquard Mechanism of Looms for Weaving.
I, EDWARD HOLLINGWORTH of the Firm of Hutchinson, Hollingworth & Co.,
Limited, of Dobcross, in the County of York, Power Loom Makers, do hereby
declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement (which invention has been communicated to me from abroad by Thomas
Corcoran, United States):
This invention relates to looms for weaving, particularly to the harness and drop
box mechanism employed in the Hollingworth and Knowle's loom.
The object of my invention is to obtain a longer length of time in which to
operate the parts controlling the harness and drop box mechanism than formerly
and this I effect by imparting to the pattern cylinder a continuous but fast and slow
rotary motion thereof. My invention consists in combining one or more elliptical
wheels with the gearing employed for driving the pattern chain, by means of which
an intermittently fast and slow motion is imparted to the pattern cylinder without
interfering with the continuously rotary motion thereof.
Referring to the drawings :-
Fig. 1 is a front side elevation of a portion of the head of the loom referred to,
with my improvements applied thereto, Fig. 2 is a plan view, and Fig. 3 is a
sectional detail on line a, b, Fig. 1.
In the accompanying drawings, 1 is the head frame, in the upper portion of which
is journalled the upper cylinder gear 2, and in the lower portion the lower cylinder
gear 3. The pattern cylinder shaft 4 is journalled in the frame 1, having the driving
wheel 5 fast on one end thereof, in the usual way. Between the upper and lower
cylinder gears 2 and 3 is arranged a system of wheels for driving the pattern
cylinder wheel 5, from the upper cylinder wheels; said system of wheels consist of
two elliptical wheels and a circular wheel which meshes with the pattern cylinder
gear 5. One of the elliptical wheels 6, is in this instance fast on the shaft 21 of the
top cylinder gear 2. The other elliptical gear 7 is mounted loosely on a stud 8, see
Fig. 2, secured to the frame 1, and is provided with an outwardly extending boss or
hub 7', as shewn in Fig. 3, which is retained in its place ou the stud 8 by a screw 8'
secured in the end of said stud.
Mounted loosely on the hub 71 of the gear 7, is a circular gear 9, which meshes
with the pattern cylinder gear 5. The circular gear 9 and the circular gear 11 are
slotted to receive the projecting knob 101 of the key 10, which is supported and
adapted to slide freely in a longitudinal groove in the hub 71 of the elliptical
gear 7, (see Fig. 3). The sliding key 10 is provided with a knob 10¹, by which it
may be moved into engagement with the key seat 9' in the circular gear 9, to couple
the circular gear 9 to the elliptical gear 7, or out of engagement with said key
seat 9' to uncouple said gear from the elliptical gear 7. When the circular gear 9
is coupled to the elliptical gear 7, the pattern cylinder gear 5, and the pattern
cylinder shaft 4, will revolve in the direction indicated by arrow d, Fig. 1, through
the pair of elliptical gears 6 and 7, and the circular gear 9, consequently a continuous
fast and slow motion is communicated to the pattern cylinder on shaft 4.
By employing a pair of circular gears 11 and 12 combined with the circular
gear 13 the pattern cylinder gear 5 can be moved in the reverse direction as
indicated by the arrow c Fig. 1.
The reverse motion of the pattern cylinder is controlled by the sliding key 10.
The cox 11 is loooste mounted
the hub 71 of the allintionl coar 7 and a

page_text: coupled with said hub by means of the end 10" of the sliding key 10, registering
with the key seat 11' in said gear, see Fig. 3.
A collar 16, is mounted on the end of the hub 71, by a set screw 16' and holds
the gears 9 and 11 on said hub, and also prevents the withdrawal of the sliding
key 10. The gear 12 is secured upon the hub 13¹, and the circular_gear 13 is
mounted loosely on a stud 15, secured in the head of the frame. The circular
gear 13 is in mesh with the pattern cylinder gear 5. When the circular gear 9 is
coupled to the elliptical gear 7, the pattern cylinder 5 will be driven in a forward
direction as indicated by arrow d, Fig. 1, but when the circular gear 9 is uncoupled
by the movement of the key 10, and the gear 11 is coupled to the elliptical gear 7,
the pattern cylinder gear 5 will be driven in the opposite direction, as indicated by
arrow c, Fig. 1, through the gears 12 and 13. When the sliding key 10 is in the
position shewn in Fig. 3, its projecting end 10" does not register with the key
seat 91 in the circular gear 9, or the key seat 11 in the gear 11, but said end 10
extends into a circular groove within the hubs of said gears 9 and 11, and both of
said gears are therefore free to turn on the hub 7' of the elliptical gear 7, and the
pattern gear 5, meshing with gear 9, may be turned in either direction by the
ordinary handle or hand wheel, not shewn, attached by the pattern cylinder shaft 4,
independently of the elliptical gear 7 and the driving elliptical gear 6.
In Fig. I shew how a second pair of elliptical wheels A and B may be
employed. These elliptical wheels rotate the circular wheel C which is in gear
with and drives the Jacquard cylinder wheel 5.
I wish it to be clearly understood that by my improvements the continuous fast
and slow motion communicated to the pattern cylinder is entirely independent of
any fast or slow motion communicated to the cylinder gears 2 and 3.
The advantages of my improvements will be readily appreciated by those skilled
in the art, and the same may be combined with different looms in which it is
desired to have a continuous fast and slow motion of the pattern cylinder for any
purpose, independent of the fast or slow motion communicated to the cylinder gears.
If desired, the shaft of the lower cylinder gear may be used as the driver, and the
elliptical gear attached thereto, instead of the upper cylinder gear as shewn in the
drawings.
By combining elliptical toothed wheels as above described, with circular toothed
wheels, and made in such proportions, the pattern cylinder will be made to revolve
twice the distance than formerly and thus cause two bars of the pattern chain to be
traversed instead of one bar, consequently every alternate bar of the chain will be
presented to act on the vibrator levers of the harness or drop box mechanism, and
this will permit me to carry two separate pattern chains on the said pattern
cylinder, one pattern chain of which may be used for weaving one portion of the
fabric, whilst the other pattern chain may be used for weaving the other portion of
the fabric; for example, in weaving blankets, shawls, and the like, one portion of
the pattern chain arranged upon every alternate bar may be adapted to weave the
body of the blanket or shawl, whilst the other alternate portions of the pattern
chain may be adapted to weave the border of the said shawl. When the body of
the blanket or shawl has been woven, the weaver disconnects the driving gear of
the pattern cylinder and moves the chain one bar by his hand, so as to bring into
operation the portion of the pattern chain necessary for weaving the border of the
blanket or shawl, afterwards the gearing may be connected and the loom will
proceed to weave the border of the blanket.
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 one of the cylinder gears of the head
motion, and the pattern cylinder gear, of elliptical wheels, and a circular wheel, for
communicating a continuous fast and slow motion to the pattern cylinder, sub
stantially as set forth and shewn in Figs. 1. 2, 3 and 4.

page_text: Secondly. In a loom, the combination with one of the cylinder gears of the head
motion, and the pattern cylinder gear, of a system of gears, for communicating a
continuous fast and slow motion to the pattern cylinder, said system of gears
having one or more pairs of elliptical gears forming a part thereof, substantially as
set forth and shewn in Figs. 1, 2, 3 and 4.
Dated thin 11th dow of Ia 1001
TASKER & CROSSLEY,
Halifax, Agents.