IMPROVEMENTS IN APPARATUS USED WHEN WEAVING
Year: 1860

page_text: LETTERS PATENT to James Leonard, of 4, Skinners Place, Sise Lane,
E. C., for the Invention of "IMPROVEMENTS IN APPARATUS USED WHEN
WEAVING." A communication from abroad by Carl Heinrich Zimmer-
mann; of Glauchow, Saxony.
Sealed the 19th September 1860, and dated the 28th March 1860.
PROVISIONAL SPECIFICATION left by the said James Leonard at the
Office of the Commissioners of Patents, with his Petition, on the 28th
March 1860.
I, JAMES LEONARD, of 4, Skinners Place, Sise Lane, E. C., do hereby
declare the nature of the Invention for "IMPROVEMENTS IN APPARATUS USED
WHEN WEAVING," to be as follows:-
This Invention has for its object improvements in apparatus used when
weaving, and is applicable when weaving fabrics where chenille weft is
employed, but such apparatus may also be used when weaving with other
weft. For these purposes, in place of employing ordinary beddles such as
heretofore used for opening sheds between the warp threads or yarns for the
introduction of the weft, a peculiar arrangement of apparatus is employed.
This arrangement of apparatus consists of a series of circular discs formed
with teeth around their periphery, each of which discs is supported by a
suitable frame; in each disc two holes are formed for the passage of two of
the warp threads or yarns, the two holes being equidistant from the centre of
the disc. The frames which support the discs are formed in such manner that

page_text: the discs may readily rotate therein. For this purpose each frame is formed
with a slot in it, which is open at its upper end, the lower end of the slot
is of a semicircular form, and around the edges of the slot a groove is formed
of a width corresponding with the toothed edge of the disc, the toothed edge
being thinner than the central portion of the disc. The exterior form of each
frame is rectangular, and there are two holes formed through it, one near
each of the lower angles. A series of these frames are connected together by
two screw rods being passed through the holes in the frames, and such frames
are secured together on the screw rods by screw nuts.
In order to open sheds to receive the chenille or other weft, the series of
discs thus combined in their frames are simultaneously caused to make a
partial rotary motion, and thus change the positions of the two halves of the
warp threads or yarns carried by the several discs. This partial rotary motion
is given to the discs by means of a grooved roller, the grooves of which take
into the teeth of the discs; the grooved roller receives its motion from a
toothed wheel actuated by any suitable apparatus put in motion by a treadle
or otherwise.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Leonard, in the Great Seal Patent Office on the
27th September 1860.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
LEONARD, of 4, Skinners Place, Size Lane, E. C., send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-eighth day of March, in the year of our
Lord One thousand eight hundred and sixty, in the twenty-third year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said James Leonard, Her special licence that I, the said James Leonard,
my executors, administrators, and assigns, or such others as I, the said
James Leonard, my executors, administrators, and assigns, should at any
time agree with, and no others, from time to time and at all times there-
after during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "IMPROVE-
MENTS IN APPARATUS USED WHEN WEAVING," a communication to me from
abroad by Carl Heinrich Zimmermann, of Glauchow, Saxony, upon the con-
dition (amongst others) that I, the said James Leonard, my executors or

page_text: administrators, by an instrument in writing under my, or their, or one
of their hands and seals, should particularly describe and ascertain the
nature of the said Invention, and in what manner the same was to be per-
formed, and cause the same to be filed in the Great Seal Patent Office:
within six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said James Leonard, do hereby declare:
the nature of the said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following:
statement thereof, that is to say:
This Invention has for its object improvements in apparatus used when.
weaving, and is applicable when weaving fabrics where chenille weft is
employed, but such apparatus may also be used when weaving with other
weft. For these purposes, in place of employing ordinary heddles, such as:
beretofore used for opening sheds between the warp threads or yarns for the
introduction of the weft, a peculiar arrangement of apparatus is employed.
This arrangement of apparatus consists of a series of circular discs formed with
teeth around their periphery, each of which discs is supported by a suitable
frame, in each disc two holes are formed for the passage of two of the warp:
threads or yarns, the two holes being equidistant from the centre of the disc.>
The frames which support the disc are formed in such manner that the discs
may readily rotate therein. For this purpose each frame is formed with a slot
in it, which is open at its upper end, the lower end of the slot is of a semi-
circular form, and around the edges of the slot a groove is formed of a width
corresponding with the toothed edge of the disc, the toothed edge being thinner
than the central portion of the disc. The exterior form of each frame is.
rectangular, and there are two holes formed through it, one near each of the
lower angle. A series of the frames are connected together by two screw rods
being passed through the holes in the frames, and such frames are secured
together on the screw rods by screw nuts. In order to open sheds to receive
the chenille or other weft, the series of discs thus combined in their frames are
simultaneously caused to make a partial rotary motion, and thus change the
positions of the two halves of the warp threads or yarns carried by the several
discs. This partial rotary motion is given to the discs by means of a grooved
roller, the grooves of which take into the teeth of the discs; the grooved roller
receives its motion from a toothed wheel actuated by any suitable apparatus
put in motion by a treaddle or otherwise.
Having thus stated the nature of the said Invention, I will proceed more
fully to describe the manner of performing the same.

page_text: Figure 1 shows a perspective view of the combined apparatus constructed
and arranged according to the Invention; Figure 2 shows separately one of
the discs and its frame on a larger scale; Figure 3 is a plan thereof; Figure 4
shows a side view, and Figure 5 an edge view of one of the discs separately on
the same scale as Figure 2.
A, A, are the discs, having around their peripheries teeth, which take into
and are actuated by the grooved roller D; each of these discs A is received
into and turns in a groove formed in the interior, and at the lower part of a
frame B. The periphery of each disc where the teeth are made is reduced in
thickness in order to fit easily into the groove formed in the interior of its
frame B. Each disc A has two holes C, C, for the passage of two warp threads
and each frame B has two holes through it, near its lower angles. Through
the holes in the frames B two screws S are passed, having nuts to adjust the
frames B thereon, and to adjust the position of the frames B between the end
frames R. The discs and their frames are arranged to admit of two warp
threads moving freely past each other between the neighbouring discs, an
alternating motion is communicated simultaneously to all the discs by means
of the grooved roller D, and this roller receives a rotatory motion, first in one
direction and then in the other, by the toothed wheel F on the axis G, which
receives a partial rotation, first in one direction and then in the other, by means
of a treadle and suitable interposed mechanism, or by any convenient means."
The axis of the roller D turns in suitable bearings in the bar E of the end
framings R and the axis G turns in suitable bearings in the bars H of the end
framings R.
Having thus described the nature of the Invention and the manner of per-
forming the same, I would wish it to be understood that I make no claim to
the mechanical parts separately; but what I claim is, the combination herein
described.
In witness whereof, I, the said James Leonard, have hereunto set my
hand and seal, this Fourteenth day of September, in the year of our
Lord One thousand eight hundred and sixty.
ממוזdi -
JAMES LEONARD.
ARD. ()