Improvements in Cross Weaving Apparatus for Looms.
Year: 1890

page_text: Date of Application, 15th May, 1890
Complete Specification Left, 16th Feb., 1891-Accepted, 21st Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in Cross Weaving Apparatus for Looms.
I, JOHN FAIRBURN, Junr., of 88, Every Street, Burnley, in the County of
Lancaster, Temple Maker, do hereby declare the nature of this invention to be as
follows:-
This invention relates to an improved means or apparatus for actuating the
upper and lower needles used in cross-weaving, in which the warp threads or a
portion of such threads do not lie parallel to each other, but are crossed over from
one side to the other of the adjoining warp threads, as in "lenos," and locked
together by the intersection of the weft shots. The apparatus is particularly.
applicable for securing the severed edges of "slits," that is to say two or more
breadths of fabric woven side by side in the same loom, and subsequently separated
from each other by the severance of the weft. In the application of my improved
apparatus to "slits," four needles are preferably employed, two for each adjoining
selvage of the two fabrics to be severed; and of the four needles, two are fixed in
a frame with their points projecting downwards. The other two needles are fixed
to a lever or slide piece with their points projecting upwards, and are made to move
laterally to the right and left alternately of those above, immediately before the
formation of the shed, and whilst the points of the upper needles are above those
of the lower.
To the needle frame is fixed a cord band or chain, which is passed over a suitable
guide and is then attached to the sley cap, the vibratory movement of which imparts
a vertical motion to the upper needles to form the shed.
The lower needles, which carry the crossing threads, are actuated in a lateral
manner by suitable projections, swells or indentations carried by or on a ratchet
wheel and brought into and out of position every alternate pick or tooth of the
ratchet wheel which is actuated by a catch attached to the frame carrying the upper
needles.
I would observe that although I have described the crossing threads as being
moved every alternate pick, the number and disposition of the projections swells or
indentations on the wheel may be varied to meet the requirements of the various
classes or designs of fabrics to be woven.
Dated this 14th day of May
THOS. RICHMOND,
Agent.
COMPLETE SPECIFICATION.
Improvements in Cross Weaving Apparatus for Looms.
1, JOHN FAIRBURN, Junior, of 88, Every Street, Burnley, in the County of
Lancaster, Temple 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:-
This invention relates to an improved means of or apparatus for actuating the
upper and lower needles used in cross weaving, in which the warp threads or a
portion of such threads do not lie parallel to each other, but are crossed over from
one side to the other of the adjoining warp threads, as in "lenos," and locked
together by the intersection of the weft shots.

page_text: The apparatus is particularly applicable for securing the severed edges of "slits,"
that is to say two or more breadths of fabric woven side by side in the same loom,
and subsequently separated from each other by the severance of the weft.
In the application of my improved apparatus to "slits," four needles are
preferably employed, two for each adjoining selvage of the two fabrics to be
severed; and of the four needles, two are fixed in a frame with their points pro-
jecting downwards. The other two needles are fixed to a lever or slide piece with
their points projecting upwards, and are made to move laterally to the right and
left alternately of those above, immediately before the formation of the shed, and
whilst the points of the upper needles are above those of the lower.
To the needle frame is fixed a cord, band or chain, which is passed over a
suitable guide, and is then attached to the "sley cap," the vibratory movement of
which imparts a vertical motion to the upper needles to form the shed.
The lower needles, which carry the crossing threads, are actuated in a lateral
manner by suitable projections, swells or indentations carried by or on a ratchet
wheel, and brought into and out of position every alternate pick or tooth of the
ratchet wheel, which is actuated by a catch attached to the frame carrying the
upper needles.
I would observe that although I have described the crossing threads as being
moved every alternate pick, the disposition of the projections, swells or indentations
on the wheel may be varied to meet the requirements of the various classes or
designs of fabrics to be woven.
In the accompanying sheet of drawings,
Fig. 1 represents a side elevation of my improved apparatus for weaving splits.
Fig. 2 is a front view.
Fig. 3 is a similar view to Fig. 2 with the exception that the points of the
upper needles are represented as being raised above those of the lower needles.
Figs. 4, 5 and 6 are views drawn full working size of parts of mechanism com-
posing the apparatus.
A is the body or framework of the apparatus fixed to the "top-tree" of the
loom, whilst its lower end projects through the warp behind the healds and between
the selvages to be secured and subsequently severed. The upper needles C are
fixed in the vertical slide frame D, whose connecting ends slide in the guides E
and F secured to the body or framework A. This slide-frame is connected to
lever G by strap H after the said strap has passed over the guide pulley I; and to
the slide-frame a vertical motion is imparted through the medium of a flexible
connection subsisting between the lever G and the "sley cap" of the loom; and
to ensure a downward motion to the slide frame the spring J is applied.
The lower needles K are secured to the upper end of the lever L, which is
jointed or pivotted at M to framework A.
The slide-frame D, when in motion, brings a projection Q on tumbler R jointed
to the slide frame against a tooth of the ratchet-wheel O turning it at each stroke to
the extent of one tooth, so as to bring alternately the full and slack side of the
cam N (cast or otherwise fixed to the ratchet wheel) against the lever L, to which
the lower needles K are attached and imparts thereto a lateral movement.
blade spring S, fixed at T to the lever L, and bearing against the teeth of the
ratchet wheel, keeps the lever L in contact with the acting surface of the cam N.
The
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 an apparatus for securing "splits " or "slits" the actuation of a slide
piece or lever L by means of projections, swells, or indentations formed in or on
an intermittant traversing medium to produce a lateral movement at the points
of the needles of the crossing-threads substantially as described.

page_text: 66
(2.) The arrangement and combination of parts of mechanism for securing
'splits" or "slits," substantially as described and illustrated.
D
Lhun 1901
THOS. RICHMOND,
Agent.