Improvements in Apparatus for Operating the Healds of Looms for Weaving.
Year: 1889

page_text: Date of Application, 24th July, 1889
Complete Specification Left, 10th Mar., 1890-Accepted, 12th Aor., 1890
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Operating the Healds of Looms for
Weaving.
I, JAMES CULPAN of Standing Stone, Luddenden Foot in the County of York,
Loom Tackler, do hereby declare the nature of this invention to be as follows:-
This invention relates to apparatus for purpose aforesaid and consists of improved.
construction combination and arrangements of parts designed to ensure positive action
or motion both in directions without the aid of weights or springs.
According to this my said invention the lever connected with the dobby is a plain
arm connected at its lower end on a stud or fulcrum its upper end being connected
with the levers for moving the healds. About mid way its length is a projecting finger
on a stud of which is a second but shorter vertical lever its upper and lower ends
having each a stud which carries one of a sickle lever the other and curved end of
the latter being attached by stud to the face of a disc on which is a segment wheel
gearing with a rack on the upper edge of each of the catches. In lieu of the ordinary.
needles I employ a vertical angled bar working through a grating the cranked arm of
each angled bar is operated on by the ordinary tumbler or heavy ended lever and
pattern pegs (or cards). When the angled bars are at the further end of their move-
ment they extend over and under the shaft of the ordinary or rocking levers shaft,
the latter being utilized to hold them in position.
The connection of the curved end of the sickle levers may be further from and
nearer to the centre of the several discs of the segment wheels so as to obtain the
required variation in the movements to give the required angle to the shed. The
sickle levers hold all in position when once set until a change is required by reason of
the studs being then at the position of dead centre with the centre of the disc.
.
WALTER BRIERLEY,
Central Chambers, Halifax, Agont for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Operating the Healds of Looms for
Weaving.
I, JAMES CULPAN of Standing Stone, Luddenden Foot in the County of York,
Loom Tackler, 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 relates to apparatus for the purpose aforesaid and consists of an
improved construction combination and arrangement of parts designed to ensure
positive action or motion of the healds in both directions thus obviating the use of
springs or weights for effecting the motion of said healds in one or the other
direction.
In the accompanying sheets of drawings fig. 1 is a part sectional side elevation of
my improved mechanism, fig. 2 being a top view of same.
In accordance with this invention the lever connected with the dobby is a plain
and common kind of three-armed lever a, mounted, at about its central part, upon the
shaft b and having its extending arms a¹ and a² so formed that they may be coupled
to the well known arrangements or parts which are respectively joined in the usual
manner to the upper and lower edges of the healds for purposes well understood. The
arm a³ of this three-armed lever a is formed so that the vertical lever c may be
mounted upon a stud c¹ attached to or formed upon said arm a³, this arrangement
and formation of the levers a and b being old and common.

page_text: Hinged at the extremities of the lever care the sickle levers or more correctly sickle
connecting rods d and d', the curved ends of these sickle rods being attached by
studs to the face of the discs,e and el on which are segment wheels fand fl gearing
with the racks g and. g¹ formed on the upper edges of the catches h and
respectively.
The ordinary needles & working through a grating are employed in connection
with the well known tumbler or heavy ended lever m operated by the pattern surface
carried by the pattern cylinder n.
The catches and h¹ are moved backwards and forwards by the reciprocating bars o
and o respectively when they are put into connection with said bars by the pattern
mechanism as is well understood.
As the catches and are reciprocated their respective discs e and e' are rotated
and the crank studs d' are moved into positions diametrically opposed to those they
occupied before being so moved by which means the sickle rods d and d¹ hold all in
position when once set until a change is required by reason of their studs &² being then
at the position of "dead centre" with the centre e² of the discs e and e¹.
The connection of the curved end of the rods d and d (or the studs d²) may be
further from and nearer to the centres e² of the several discs e and e¹ so as to obtain
the required variation in the movements of the vertical levers c to give the required
angle to the shed.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, 1 declare that what I
claim is :-
1. The method of operating the vertical lever c in a positive manner and of holding
same at each extremity of its movements substantially as herein specified.
2. The levers a and c, the sickle rods d and d¹, the discs e and e¹ having segment
wheels fand f', the racks g and g¹, and means for operating same in combination,
all said parts being arranged and constructed so as to operate substantially as
specified.
Dated this 8th day of March 1890.