Improvements in or appertaining to the Heddle Operating Mechanism of Looms for Weaving.
Year: 1894

page_text: Date of Application, 24th Feb., 1894
Complete Specification Left, 24th Nov., 1894-Accepted, 29th Dec., 1894
PROVISIONAL SPECIFICATION.
Improvements in or appertaining to the Heddle Operating Mechanism
of Looms for Weaving.
We, RICHARD LONGDEN HATTERSLEY, of North Brook Works, Keighley, in
the County of York, Machine Maker, and SIMEON JACKSON, of the same address,
Manager, do hereby declare the nature of this invention to be as follows:-
This invention consists of improvements in, or appertaining to the heddle
operating mechanism of looms for weaving, and relates, or is applicable to that
class of loom commonly known as Hollingworth and Knowles' fast running loom,
or similarly constructed looms. In such a loom, when it is necessary to reverse the
heddle operating mechanism, for the purpose of "lagging back" to find broken
weft or for other causes; the heddle operating mechanism has to be uncoupled
from the other parts of the loom, and the mechanism operated backwards by hand.
For this purpose, there is provided a hand wheel or swape, which is coupled to one
of the toothed segment wheels of the heddle operating mechanism.
The operation of reversing the mechanism by means of this hand wheel, requires
a considerable amount of labour to be exerted by the operative.
The object of this invention is, to dispense with this hand wheel, and to substitute
therefor a simple arrangement of parts, whereby the heddle operating mechanism
may be reversed without requiring any exertion on the part of the operative.
This arrangement consists in connecting the loose pulley of the loom, to some
convenient part of the heddle operating mechanism, by means of suitable gearing;
and also in the employment therewith of a manually operated friction clutch, or
other means, whereby the heddle operating mechanism may be connected and
driven from the loose pulley, at such times as required, for the before named
purpose.
In order to connect the heddle operating mechanism to the loose pulley, we
employ a cross shaft, or its equivalent, coupled at one end to the upright shaft
employed in this class of loom for driving the heddle mechanism, or, coupled to one
of the segment wheels of such mechanism by suitable gearing.
The end of the cross shaft, adjacent to the loose pulley, may be provided with
bevel wheel driven by a vertical shaft running in connection with the loose pulley,
or, the cross shaft may be coupled to the loose pulley by means of chain gearing,
in which case, a chain wheel is fixed to, or revolves in connection with said loose
pulley.
The friction clutch may be fixed in any convenient position such as on the
upright or cross shafts.
By this arrangement, when it is necessary to unweave or "lag_back," the
operative prepares for a reversion of the indicating cylinder or barrel, and
uncouples the heddle operating mechanism from the other parts of the loom by
methods well understood. Then, by putting or holding in gear the friction clutch,
the heddle operating mechanism is actuated in the direction necessary to effect the
above named purpose without the labour now attending that undertaking.
Dated this 21st day of February 1894.
J. SIDNEY CRITCHLEY,
27, Kirkgate, Bradford, Agent for the Applicants.

page_text: Improvements in or appertaining to the Heddle Operating Mechanism
of Looms for Weaving.
We, RICHARD LONGDEN HATTERSLEY, of North Brook Works, Keighley, in
the County of York, Machine Maker, and SIMEON JACKSON, of the same address,
Manager, 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:―
This invention consists of improvements in or appertaining to the heddle operating
mechanism of looms for weaving, and relates, or is applicable to that class of loom
commonly known as Hollingworth and Knowles' fast running loom, or similarly
constructed loom. In such a loom, when it is necessary to reverse the heddle
operating mechanism for the purpose of "lagging back" to find broken weft, or for
other causes, the heddle operating mechanism has to be uncoupled from the other
parts of the loom, and the mechanism operated by hand. For this purpose there is
provided a hand wheel or swape fixed to a horizontal shaft.
The object of this invention is to dispense with the use of this hand wheel, and
to substitute therefor, a simple arrangement of parts, whereby the heddle operating
mechanism may be reversed without exertion.
Our invention consists in connecting the loose pulley of the loom to some
convenient part of the heddle operating mechanism, by means of suitable gearing,
and also, in the employment therewith of a manually operated friction clutch, or
other means, whereby the heddle operating mechanism may be connected and
driven from the loose pulley, at such times as required, for the before named
purpose.
In order to fully explain our invention, we append hereto sheets of drawings
marked with letters of reference, wherein;
Fig. 1, represents a front view of our improvements, with such other parts of a
Hollingworth and Knowles' loom as are necessary to explain same,
Fig. 2, is a right-hand end view, and
Fig. 3 is a left-hand end view of same.
The figures are marked with letters of reference, and a designates the fast pulley,
and b the loose pulley. c, is the upright shaft employed in this loom for driving
the heddle operating mechanism. It is driven from the shaft d by means of spur
wheels d', and d², and bevel wheels c', and c². The bevel wheel ², is coupled to
the shaft c, by means of a sliding clutch e, operated by a lever el. is the
horizontal shaft to which one of the ordinary segment wheels is attached, and to
which also is fixed the hand wheel f', for manually operating the mechanism, the
shaft being geared to the shaft c, by the bevel wheels f and f³. 9 is the
horizontal shaft on which are loosely mounted, with their faces opposite, two bevel
wheels g', and g², gearing with a bevel wheel c³, fixed to the shaft c.
The bevel
wheel g, is attached to another segment wheel of the mechanism which is also
.mounted on the shaft g, and either of the bevel wheels g', and g³, may be coupled
to the shaft g, by means of the sliding clutch h, which is operated by a manual
lever h. From the shaft g, motion is taken to rotate the pattern cylinder of the
'heddle mechanism, and under ordinary circumstances, the clutch h, is caused to he
in gear with the bevel wheel g¹, the shaft g, being thus rotated from the shaft c, by
means of the bevel wheels c and g', and clutch h, and in the same direction as the
segment wheel attached to the bevel wheel g¹.
e,
is
When it is necessary to reverse the heddle operating mechanism, the clutch
raised by the lever e¹, out of gear with the bevel wheel c³, whereby the shaft c is
uncoupled from the other parts of the loom. The clutch h, is also moved by the
lever ', so that the shaft 9, is coupled to the bevel wheel g³.

page_text: The shaft, is now rotated by means of the hand wheel f¹, when the shaft c, is
driven by the bevel wheels f* and f' in the same direction as when driven from the
shaft d, whereby the bevel wheel g¹, to which a segment wheel is fixed, rotates in
the same direction as before, but the shaft g rotates in the opposite direction, owing
to the clutch h, being coupled to the bevel wheel g², so that, while the pattern
cylinder of the heddle operating mechanism, which is driven from the shaft,
9, is
reversed, the healds are operative. Now, in order that the shaft c, may be rotated
when uncoupled from the shaft d, and the shaft g rotated backwards without the
use of the hand wheel f¹, we couple the shaft c, to the loose pulley b, of the loom.
For this purpose, we fix to the loose pulley, a bevel wheel 6', gearing with a bevel
wheel b, fixed to a vertical shaft j. By means of bevel wheels j¹, and 12, motion is
imparted from the vertical shaft j, to a cross shaft k. On this shaft k, we fix a
bevel wheel k', gearing with a bevel wheel k³, mounted loosely on the vertical
shaft c.
A friction clutch 1, operated by a manual lever l, is provided for the purpose of
coupling the bevel wheel &, to the shaft c. When it is desired to reverse the heddle
mechanism, after moving the belt onto the loose pulley, the same preparation is
made as when the mechanism is reversed by the hand wheel f¹, that is, the shaft c,
is uncoupled from the motor shaft d, by the movement of the lever e¹, operating the
clutch e, and the clutch h, is moved by the lever h¹, to couple the shaft g, to the
bevel wheel g². The lever ', is now moved to cause the friction clutch 1, to couple
the shaft c, to the bevel wheel k², when the shaft c, is rotated from the loose pulley,
and the shaft g, rotated backwards by the bevel wheel g' to which the clutch h, is
now coupled.
Instead of coupling the loose pulley to the shaft c, the pulley may be coupled to
any other convenient part of the heddle operating mechanism, such as the shaft f.
Also, in place of shafts and bevel wheels, a chain or strap, or any other arrange-
ment equivalent to the method shown, may be employed for coupling the loose
pulley to the heddle operating mechanism.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:
In a Hollingworth and Knowles' loom, or similarly constructed loom, the
employment of bevel wheels b' and 62, vertical shaft j, bevel wheels j' and ³, cross
shaft k, bevel wheels k¹, and k³, or their equivalents, and a friction clutch 1, for the
purpose of reversing the heddle mechanism from the loose pulley of the loom,
substantially as shown and described.
"
Dated this 22nd day of November 1894.
J. SIDNEY CRITCHLEY,
27, Kirkgate, Bradford, Agent for the Applicants.