IMPROVEMENTS IN HEALDS OR HEDDLES AND PARTS CONNECTED THERE- WITH, AND IN MEANS OR APPARATUS EMPLOYED IN THE MANUFACTURE OF PARTS OF SUCH HEALDS OR HEDDLES
Year: 1871

page_text: PROVISIONAL SPECIFICATION left by George Jackson and Albert
Jackson at the Office of the Commissioners of Patents, with their
Petition, on the 15th April 1871.
We, GEORGE JACKSON, and ALBERT JACKSON, both in the Employ of
Sir Titus Salt, Baronet, Sons and Company, of Saltaire, near Bradford,
in the County of York, do hereby declare the nature of the said Inven-
tion for "IMPROVEMENTS IN HEALDS OR HEDDLES AND PARTS CONNECTED THERE-
WITH, AND IN MEANS OR APPARATUS EMPLOYED IN THE MANUFACTURE OF PARTS
OF SUCH HEALDS OR HEDDLES," to be as follows:-
The improvements relate' when employing metal healds or heddles
to means by which the application of the healds or heddles to or their
removal from their frames is facilitated whilst their correct holding in
such frames is secured.
Also the improvements relate to means of forming eyes to metal
healds or beddles, so as to facilitate the passage of the warp threads
therethrough, and for giving form to other of the parts of them.
In carrying our improvements into effect we form the ends of the
healds or heddles each somewhat of a hooked with a stop or open slot
form, so that when these parts are passed into corresponding bars carried

page_text: by the heald or heddle shafts they may be free to slide upon, but be
stopped from jumping or shaking off such bars. There may be one or
more of such bars to cach top and bottom heald or heddle shaft, and
when the full complement of healds or heddles for the time desired has
been applied to each of such bars they may be retained from coming
off by suitable stops.
We also prefer to form the healds or heddles of narrow bands of metal,
placed edgewise in their heald or heddle frames, and we form the eyes
therein for the passage of warp by forming longitudinal slits, one or
more in such bands, and then bending out the parts thus separated in
opposite directions, so as to form a hole for the warp to pass there-
through parallel with the width of such metal band. By these means
any desired size of cyc may be obtained without reducing the
substance of the metal.
We also form the bars upon which the ends of the healds slide of
plate metal turned up, so that one part thereof may pass into a slit
formed for it in the heald shafts and be there held by screws or pins.
so as thereby to aid in strengthening such shafts, and thus admit of
their being formed much thinner than usual, the other part turned up
forming the bar or rail, or that part of them on which the ends of
these heddles are held, or these parts, 'in place of being formed by
the turning up of one part over the other may be formed of separato
bars, or the ends of the healds may be produced T or such like form,
to be received between pairs of bars. We form the eyes to the healds
or heddles by the employment of dies in pairs, each of which is formed
partly projecting and partly recessed, but the part or parts which in one
are formed hollow or recessed project in the other, so that the slit or
slits are cut and the desired configuration given to the adjoining parts
at one operation. A guide or guides which may be adjustable serve
to adjust the position of the metal for each operation.
Similar dies, but different in form, with a guide or guides, are employed
to obtain the desired shape to the other parts of the heddles or healds.