Improvements in Loom-heddle Operating Mechanism.
Year: 1897

page_text: Date of Application, 15th Sept., 1897
Complete Specification Left, 15th June, 1898-Accepted, 3rd Sept., 1898
PROVISIONAL SPECIFICATION.
Improvements in Loom-heddle Operating Mechanism.
I, FREDERICK WADDINGTON, of Sunny Mount, Keighley, in the County of York,
Machine Maker, do hereby declare the nature of this invention to be as follows, that
is to say:
It relates to loom-heddle operating mechanism of the class wherein one lever is
mounted to swivel upon another so that by reciprocatory drawu bars operating these
the desired movements may be transmitted to the heddles in the looms as is well
understood, and the object of this invention is to produce said mechanism by the
employment of as few pieces for operating each heddle as is possible thus the cost of
production wear and tear and liability to derangement are greatly reduced.
In carrying my invention into effect I arrange the machine's draw-bars to move in
the are of a circle and to enable the levers to be coupled thereto as may be desired
or indicated by the pattern surface mechanism I employ segment pieces to lay-hold-
of or be pivotally connected to the swivelling levers in the machine. On these
segment pieces I mount the engaging catches which I form by making extensions
thereon of suitable shapes, so that they will reach into direct contact with the pattern
surface on the pattern cylinder without the intervention of any additional levers or
parts, provision being made in the form of these catches and the segment pieces
which carry them so that perfect freedom is at all times allowed for the movements
of said catches whenever acted upon by the pattern surface, while the segment pieces
are so constructed as to retain them in position throughout their respective paths of
motion, by which means the employment of grids or additional guiding pieces for
the catches is not so absolutely necessary as has heretofore been the case.
The pattern surface may consist of either lags and pegs or cards or the like by
employing the well known mechanical devices for respectively operating these varied
mechanisms.
1907
F. WADDINGTON,
Per Samuel Hey,
Agent.
Improvements in Loom-heddle Operating Mechanism.
I, FREDERICK WADDINGTON, of Sunny Mount, Keighley, in the County of York,
Machine Maker, 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, that is to say:-
It relates to loom-heddle oper ting mechanism of the class wherein one lever
is mounted to swivel upon another is that by reciprocatory draw bars operating

page_text: these the desireu movements may Je
спе
444 CHIC
as is well understood, and the object of this invention is to produce said nechan-
ism by the employment of as few pieces for operating each heddle as is possible
thus the cost of production, wear and tear and liability to derangement are greatly
reduced.
In order that my said invention may be readily understood I have hereunto
appended sheets of drawings illustrative thereof, in which ;-
Fig. 1 is side elevation of a machine constructed in accordance with my inven-
tion.
Fig. 2 is a sectional elevation of said machine.
Fig. 3 is a view of certain of the parts shown by Fig. 2 as seen from above.
Figs. 4 and 5 are each sectional and plan views of certain of the parts hereinafter
referred to.
9
Figs. 6 and 7 are each side and plan views of the operating catches.
Fig. 8 gives side and plan views of a certain part of the operating catch herein-
after explained.
Similar letters and figures indicate similar parts throughout the several views.
On
In carrying my invention into effect I arrange the machine's draw-bars ab to move
in the arc of a circle the centre of which is at c and to enable the levers d, which are
pivotally mounted at 2 to the jack or heddle levers f (the latter being coupled by the
cords g to the heddles in the loom in the well known manner), to be coupled to said
draw-bars a b as or in the order in which they are required or have to be operated by
these draw-bars a bas the pattern surface on the cylinder indicates, I employ
segment pieces m n to lay-hold-of or be pivotally connected to the levers d.
these pieces m n I pivotally mount the catches pr (their fulcrums at 3, 4 respectively)
which are formed with extending ends 5, 6 to reach into contact with the pattern
surface and that without the intervention of any additional levers or parts. The
pattern pegs 8 forming said pattern surface, press against said catches pr so as to
move their catch ends 9, 10 into the paths of motion of the bars ab respectively, by
which means as said bars a 6 are moving in the direction of the arrows 12, 13 the
catches which thus lie in their path are carried forward with them, while on the
return of said bars ab should any of said catch ends 9, 10 be in their path those at 9
will be depressed to oscillate about the point 14 (by reason of the part pl being
made separately from the part p) into the position shown by broken lines Fig. 2, while
those at 10 will be lifted from their fuleruin pin 4, thus said pattern pegs may freely
operate said catches pr at any time without having any strain put upon to cause
them to break.
To keep the catches pr and part pin their proper positions the segment pieces m n
are made hollow to receive them, and by the said segment pieces m n being of the
proper width on their being held together or in contact with each other laterally the
catches they carry are kept the proper distances apart to come into contact with their
respective pegs 8.
The pattern surface is herein shown and described as consisting of lags and pegs
but by arranging the cylinder to have a reciprocatory notion in addition to its
rotary motion as is the case in many machines, paper or other cards may be employed
as is well understood.
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
1. In loom shedding mechanism, heddle operating levers, swivelling levers mounted
thereon, oscillatory draw-bars, segment pieces intervening between said swivelling
levers and said draw-bars, catches carried by said segment pieces and formed to reach
for contact with the pattern surface of the pattern mechanism, and said pattern
mechanism in combination the same being constructed and arranged to operate sub-
stantially as herein specified.

page_text: -
2. In loom shedding mechanism, heddle levers, swivelling levers mounted thereon,
oscillatory draw-bars, segment-pieces intervening between these bars and said
swivelling levers, operating catches formed as described and mounted in segment
pieces which are constructed to receive and retain them, and pattern mechanism for
operating said catches all in combination substantially as herein specified.
3. In loom shedding mechanism, heddle levers, swivelling levers mounted thereon,
oscillatory draw-bars, seginent pieces intervening between said levers and said draw-
bars, operating catches mounted on said segment pieces and formed to allow the
pattern surface to act upon them without having undue pressure put upon it,
and pattern mechanism for acting on said catches all the several parts being con-
structed and arranged to operate substantially as herein specified.
1000
F. WADDINGTON,
Per Samuel Hey,
Agent.