Improvements in Machines for Drawing Warp Threads through Loom Reeds,
Year: 1899

page_text: Date of Application, 30th Aug., 1899-Accepted, 28th Oct.,
1899
COMPLETE SPECIFICATION.
Improvements in Machines for Drawing Warp Threads through
Loom Reeds,
We, CHARLES ALEXANDER WEIDINGER, of 23, Exchange Buildings, St. Mary's
Gate, Manchester, in the County of Lancaster, Engineer, and JOSEF PACHOLIK,
of Liebstadtl, Bohemia, in the German Empire, Engineer, do hereby declare the
nature of our said 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 improvements in threading machines for warps, by
means of which the ends of the warps are drawn through the reed and thus the
work is much simplified and accomplished more exactly.
The mechanism consists of a disc-carrier in the form of a circular plate, of
which nearly a quarter has been cut away two horns being formed in the peri-
phery. This disc-carrier is mounted upon a horizontal shaft in such a manner
that it turns therewith, and, at the same time, slides along the shaft. The shaft
is mounted at such a distance from the reeds, that the disc-carrier is partly (say.
with one third of its diameter), passing through the reeds, it being so arranged,
that the two horns, when passing through the reeds, are separated by one reed,
one horn passing on its right and the other on its left side. This is accomplished
by a wedge shaped projection on the rear horn, or other suitable means.
Each time the shaft is turned by the treadle once round the disc carrying the.
thread upon its sharp horn turns also once round, but at the same time passes
from one reed to its next one. The treadle, when moved again, forces the disc-
carrier one reed further on. In this manner it is possible to draw the separate
ends of a warp through the reed it being only required to place the ends of the
warp in a notch of the front horn of the disc-carrier before moving the treadle.
To bring the treadle back into its original position a suitable spring, or a counter-
weight is connected with the treadle. During this backward movement of the
treadle the knife remains stationary.
And in order that our said invention may be particularly described and ascer-
tained reference is hereby made to the accompanying drawings, in which similar
figures of reference indicate corresponding parts.
Fig. 1 is a longitudinal elevation; Fig. 2 a section at right angles to Fig. 1,
and Fig. 2 an end elevation of the machine fitted with cog-wheel gearing.
Fig. 3 is a sectional elevation showing the reed with its frame, the shaft of the
disc-carrier in cross section, and the disc-carrier in front view.
Fig. 4 is a side view of the frame shown in Fig. 3.
Figs. 5 and 6 show the cog-wheel gearing of Figs. 1, 2 and 2ª, drawn on an
enlarged scale, Fig. 5 being a vertical section through the axes of the wheels,
and Fig. 6 a side view of Fig. 5.
Figs. 7 to 10 show the disc-carrier in four consecutive positions.
Fig. 11 is an axial section and Fig. 12 an external view of the mounted disc-
carrier.
Fig. 13 is a front view of Fig. 12.
Figs. 14 and 15 are detail views of the disc-carrier.
Figs. 16, 17 and 18 show a modification of the machine shown by Figs. 1, 2
and 2, with another arrangement for driving with belting instead of cog-wheels.

page_text: also the rod 49, thus setting free the pin 43, so that the lever 40 falls down, till
its tooth 42 is placed on the rim in a recess. The movement of the disc 38 cannot
exceed one revolution, because the tooth 42 falls into the recess, or stops upon
the tooth of the rim.
On the shaft 17 is fastened a ratchet-wheel 45 with a pawl 46, preventing back-
ward motion of the shaft 17 when the treadle 26 is moving upwards under the
action of the spring 32.
By this backward movement of the treadle the toothed wheels 33, 34 and 35
revolve in an opposite direction, but the clutch 36 passing over the clutch 37 of
the disc 38 (Fig. 5) the spring 47 again forces the clutch 36 into the clutch 37.
The rod 49 is governed by the guide 48.
We are aware that different means of limiting such movements are known, this
being only one preferable to many others.
The toothed wheels 33, 34, 35 can also be replaced by chain-wheels 49 and 50
as shown in Figs. 16 and 18, or by belt, rope, or cord pulleys.
The working of the machine is as follows:
The primary position of the disc carrier 14 (Fig. 7,) shows part of the disc-
carrier with the notch 18 having passed the reed 11. The end 19 of the warp can
be placed in the notch at a convenient length.
Moving the disc-carrier round, according to the motion described, the end of
the warp is brought through the reed and further on remains hanging over the
shaft 17, which turns the disc carrier, as shown by the positions in Figs. 8 and 9
until it reaches again the position shown in Fig. 10, in the next reed, ready to
take up another end.
The disc-carrier 14 moves on the shaft 17 exactly the width of one reed.
Only one unskilled hand, is required to work this machine, whereas according
to the old method two persons are required.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that we
claim is:-
1. In threading machines for warps, the application and use of a disc-carrier
arranged to rotate and move longitudinally, operating substantially as set forth.
2. In threading machines for warps the use of a disc-carrier 14, turned by its
shaft 17, and at the same time capable of moving along the same shaft between
two consecutive reeds 11, so that on moving the treadle 26 downwards the disc-
carrier 14 is revolved once and brings the end of the warp through the reed, and
at the same time passes from one reed to the next, ready to receive another end of
the warp into its notch 18, substantially as set forth.
3. In threading machines for warps the arrangements for guiding the reed-
frame, for the purpose of regulating at any moment the position of the reeds,
substantially as set forth.
4. The arrangement for limiting the motion of the disc-carrier by means of
the lever 40, which when the treadle 26 is moved downwards, with the tooth 42,
falls into a recess in the disc 38, or engages a tooth, substantially as set forth.
5. The arrangement for preventing the reverse motion of the shaft 17 by means
of a ratchet wheel 45 and pawl 46 in connection with the spring 47, and coup-
ling 36, 37, all substantially as set forth.
Dated 26th August 1899.