Improvements in Looms for Weaving Wire Fabrics.
Year: 1899

page_text: Date of Application, 1st Aug., 1899
Complete Specification Left, 30th Apr., 1900-Accepted, 2nd June, 1900
PROVISIONAL SPECIFICATION.
Improvements in Looms for Weaving Wire Fabrics.
We, THOMAS BURROWS, the Younger, Engineer, of Knutsford Road, Grappen-
hall, near Warrington, and WILLIAM ANDREW JONES, Solicitor, of 33, King Street,
Manchester, both in the County of Lancaster, do hereby declare the nature of
this invention to be as follows:-
--
This invention relates to looms for weaving wire fabrics and the object is to
produce a simple and effective apparatus without the necessity for the hand labor
still generally employed for "picking" or passing the weft shuttle through the
shed.
According to this invention the shuttle is pushed quickly along the shuttle-
race for a certain distance, more than half across the fabric, and the impetus
derived from the push carries it into the fixed shuttle box or equivalent space at
the other side of the loom, from which position it is returned in a like manner
by a similar rod or pusher acting in the opposite direction.
Each of these rods or pushers is worked by a slotted lever fitted on a fulcrum
carried by a fixed portion of the frame. The lower ends of these levers (or two
shorter levers fixed on the same fulcrum) are linked together by a bar capable
of sliding to and fro beneath, and in front of, the lathe or slay. This bar is
moved to and fro across the loom so as to actuate the rods or pushers alternately
at the required intervals by means of a cam driven by suitable toothed gearing.
This cam is preferably driven from the lower or cam shaft of the loom which
actuates the movement of the healds for shedding the warp wires.
The lathe or slay moves to and fro on suitable slides and is preferably actuated
by means of a pair of cams fixed on a shaft corresponding with the ordinary
crank shaft.
"dwell'
"
These cams are so formed that they cause the lathe or slay to make a
at the end of its backward stroke so as to allow a sufficient time for one or other
of the rods or pushers to drive the shuttle through the shed, and return before
the lathe or slay commences to beat up the weft wire.
Tlated this 21st dov of Tul. 1800
We, THOMAS BURROWS, the Younger, Engineer, of Knutsford Road, Grappen-
hall, near Warrington, and WILLIAM ANDREW JONES, Solicitor, of 33, King Street,
Manchester, both in the County of Lancaster, do hereby declare the nature of
[Price 8d.]

page_text: this invention and in what manner the same is to be performed to be particu-
larly described and ascertained in and by the following statement:-
This invention relates to looms for weaving wire fabrics, and the object is to
produce a simple and effective apparatus, without the necessity for the hand labor
which is still generally employed for picking' or passing the weft shuttle
through the shed.
23
The manner in which the said invention is to be performed or carried into
practical effect will be readily understood on reference to the sheet of drawings
hereunto annexed and the following explanation of the same.
Fig. 1 on the drawings is a front elevation and Fig. 2 a vertical section of an
improved loom for weaving wire fabrics constructed according to our invention.
a is the frame of the loom, the wire warp beam, e the healds, f the sliding
reed, the shuttle race, g the fixed shuttle boxes and the work beam.
According to this invention the shuttle is pushed quickly by a pusher rod i
(see also section Fig. 1) along the shuttle race fx for a certain distance (more
than half across the fabric) and the impetus derived from the push carries it into
the fixed shuttle box g (or equivalent space) at the other side of the loom, from
which it is returned in a like manner by a similar rod or pusher i acting in the
opposite direction.
Each of these rods or pushers i is worked by a slotted leer (see Fig. 1) fitted
on a fulcrum carried by a fixed portion of the frame a. The lower ends of
these levers (or two shorter levers fixed on the same fulcrum) are linked to two
horizontal reds m sliding to and fro beneath and in front of the lathe or slay.
These rods or bars m are moved to and fro across the loom so as to actuate the
rods or pushers i alternately at the required intervals by means of a cam n
driven by suitable bevil and spur gearing (see Fig. 2).
This cam n is preferably driven from the lower or cam-shaft of the loom as
shown.
The lathe or slay with its reed f moves to and fro on suitable slides and may
be actuated by means of a pair of crank arms. see Fig. 2 worked by the ordinary
crank shaft g, the cranks being so arranged with regard to the cam n that the
"picking" of the shuttle takes place when the cranks are passing the "dead-
centre" and there is practically no movement of the shuttle race and reed but
in some cases it might be preferable to have an absolute "dwell" of the lathe
whilst the picking takes place, in which case the slay may be worked by means
of two cams fitted on the shaft g instead of the cranks, such cams being so formed
as to give an almost instantaneous dwell to the lathe at the end of its back-
ward stroke so as to allow a sufficient time for one or other of the rods or pushers i
to drive the shuttle through the shed, and return, before the lathe or slay com-
mences to beat up the weft wire.
"
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 what
we claim is:-
The improved picking motion" for diving the shuttle across the loom con-
sisting of two sliding push rods acting alternately by means of slotted levers
actuated by a revolving cam, substantially as herein before described and illus-
trated by the drawings annexed.
D
1
6
..
GEO. DAVIES & SON,
Agents for the Applicants, 4, St. Ann's Square. Manchester.