IMPROVEMENTS IN PRODUCING PATTERNS UPON CERTAIN WOVEN FABRICS
Year: 1881

page_text: PROVISIONAL SPECIFICATION left by James Barlow and Jacob Warburton
at the Office of the Commissioners of Patents on the 8th September 1881.
"
JAMES BARLOW, of Bolton, in the County of Lancaster, Manufacturer, and JACOB
WARBURTON, of the same Place, Designer. IMPROVEMENTS IN PRODUCING
PATTERNS UPON CERTAIN WOVEN FABRICS."
This Invention is applicable to the manufacture of bed quilts, toilet covers,
antimacassars, inats, and other similar articles.
We make our improved cloth in an ordinary jacquard loom, and we make the
cloth either backed or unbacked.
In carrying out the manufacture of the improved unbacked cloth two warps
(fine and very coarse) and two wefts (fine and very coarse) are required. In the
following description of the unbacked cloth there are 8 fine ends between each
coarse end, and 8 fine picks between each coarse pick.
The unbacked cloth is produced as follows:--
1st Pick. Fine weft and fine warp make tabby (that is, one end up and one end
down throughout), the coarse warp making tabby.
2nd Pick. Fine weft and fine warp make reverse tabby, the coarse warp making
figure.
The 1st and 2nd picks, fine warp and weft, to be repeated up to 8, the coarse
warp making figure all the time. 9th pick, coarse weft; the fine warp is depressed
where the coarse weft is to appear at the front to make the figure, and it is raised
where the coarse weft is put at the back, the coarse warp making tabby with the
coarse weft either at the front or at the back.
The 10th to the 17th picks are the same as from the first pick to the 8th pick,
and the 18th pick is the same as the 9th, except that the coarse warp is reverse
tabby.
The coarse weft is bound on the surface by the fine warp thread rising in the
same dent as the coarse end, and these operations repeated will produce our
unbacked lattice cloth for the above purposes.
For the backed cloth we use 3 warps (fine, coarse, and medium) and 3 wefts
(fine, coarse, and medium). There are eight fine and two medium ends between

page_text: each coarse end, with eight picks and four medium picks between each pair of
coarse picks, but the proportions between the fine, medium, and coarse picks may
be varied as desirable.
:-
The backed cloth is produced as follows:-
1st Pick. Fine weft and fine warp make tabby, coarse warp makes figure,
medium warp down.
2nd Pick. Fine weft and fine warp make reverse tabby, coarse warp makes
figure, medium warp down.
3rd and 4th picks same as 1st and 2nd.
5th Pick. Medium weft and medium warp make tabby, fine warp all raised,
coarse warp figure.
'
6th Pick. Medium weft and medium warp make reverse tabby, fine warp all
raised, course warp figure.
The 7th, 8th, 9th, and 10th picks the same as 1st, 2nd, 3rd, and 4th picks.
The 11th and 12th picks the same as 5th and 6th picks.
13th pick, coarse weft; the fine warp is depressed where the coarse weft has to
appear at the front to make the figure, and it is raised where the coarse weft is
put at the back, the coarse warp making tabby with the coarse weft either at the
front or at the back.
The medium warp thread in the same dent as the raised course end is raised to
bind this pick of coarse weft on the surface of the cloth.
14th Pick. Coarse weft, fine warp all raised, the coarse warp making tabby
with the coarse weft; this pick, which is hidden, binding the coarse warp down
upon the surface.
The 15th to the 26th picks are the same as the 1st to the 12th picks.
The 27th pick same as 13th, except coarse warp makes reverse tabby to 13th
-pick.
28th pick same as 14th pick, except coarse warp makes reverse tabby to 14th
pick.
And these operations repeated will produce our backed lattice cloth for the
above named purposes.
Any suitable pattern may be produced by varying the jacquard.