IMPROVEMENTS IN MACHINERY EMPLOYED IN THE MANUFACTURE OF LOOPED FABRICS
Year: 1863

page_text: PROVISIONAL SPECIFICATION left by William Ball and John Wilkins
at the Office of the Commissioners of Patents, with their Petition, on the
29th January 1863.
We, WILLIAM BALL and JOHN WILKINS, both of Nottingham, do hereby
declare the nature of the Invention for "IMPROVEMENTS IN MACHINERY
EMPLOYED IN THE MANUFACTURE OF LOOPED FABRICS," to be as follows:-
This Invention has for its object improvements in machinery employed in
the manufacture of looped fabrics. For these purposes a needle bar, a presser
bar, and a sinker bar are used as in warp machines. Two guide bars are also
employed, each bar having half as many guides as there are needles; these
guide bars have simply a shogging or to-and-fro endway movement equal to
three needles constantly communicated to them in opposite directions by lace
wheels or otherwise, and the threads of these guides are constantly laid to and
fro under three needles, excepting when they are intercepted by suitable
interceptors, which are preferred to consist of forked rods acted on by jacquard
or other pattern surfaces. The bar which carries these forked interceptors
has a shogging motion equal to the space between two needles, and there are
half as many interceptors as there are needles; so long as the interceptors are
not brought into action the threads of the two guide bars are constantly
shogged a distance in opposite directions equal to three needles, but when any
of the interceptors are brought into action they each receive in their forked
ends two of the guides, and prevent them shogging to the full extent of their
otherwise constant action. A third guide bar is also used, the threads of which

page_text: are caused to lap on to the needles and to be looped thereby, so as to form as
many looped pillars as there are needles. The guides of this guide bar are
cranked towards the needles, and there are as many upright points with eyes
or holes through them near their upper ends as there are needles, so that the
threads pass through such holes or eyes in the upright points and then
through the holes or points in the guides. The guides and points of this third
guide bar rise up through the threads of the other guides, and are then caused
to be shogged so as to lay their threads on the stems of the needles; but before
this rising of the guides and points and the lapping of the threads on to the
needles takes place, points on a suitable point bar are caused to come forward
and to draw the threads which have been traversed under the needles in
towards the work, so that when the threads of the guides of the third guide
bar come up they shut the traversed threads into the fabric. The threads
which lap over the needles are by the working of the machine caused to be
moved under the beards of the needles, and the work is knocked over the
heads or ends of the needles by the needle bar being caused to move back, the
heads of the needles being closed by the presser bar, as is well understood. It
should be stated that where the interceptors come into action open work is
produced, and where the interceptors are out of action close work is produced,
consisting of the looped pillars of the threads lapped on the needles and the
traversed threads which are laid under the needles. In addition to the above
threads other threads may be also introduced in producing fabrics.