Improvements in the Manufacture of Axminster or Tufted Pile Carpets.
Year: 1899

page_text: Date of Application, 31st Aug., 1899
Complete Specification Left, 12th May, 1900-Accepted, 16th June, 1900
PROVISIONAL SPECIFICATION.
Improvements in the Manufacture of Axminster or Tufted Pile
Carpets.
We, WILLIAM HENRY SMITH, of The Birches, Hagley, in the County of Wor-
cester, Chanman of The Carpet Manufacturing Company, Limited, of New Road,
Kidderminster, in the County of Worcester, and THOMAS COOPER, of Faiheld,
Kidderminster, aforesaid, Mechanical Engineer, do hereby declare the nature of
this invention to be as follows:-
-
The said invention consists in the manufacture of Axminster or tufted pile
carpets in the following manner.
The
We employ two straight or tight warps and two binding or slack warps and
four rows of weft, two rows of weft above and two below the tight warps. The
said binding warps pass alternately over and under four of the weft shots
adjacent warp threads situated side by side have the crossing parts of the bind-
ing warp threads on one warp opposite the middle of the shed of the adjacent
warp threads so that the flexibility which would arise if the crossing parts of
the several sheds were opposite each other is avoided and greater strength and
inflexibility given to the carpet
In order to weave a carpet of the kind described we modify the ordinary
Axminster loom in the following manner.
In the said ordinary Axminster loom the cams by which the warps are con-
trolled are so shaped as to produce a stitch in the carpet with two or more
weft shots to one row of pile as is well understood. We employ cams so con-
structed as to produce a stitch with four shots of weft to two rows of pile to
the warp threads in each dent of the reed of the loom We employ five cams
four of the said cams working the binding warp threads and the fifth working
the straight or tight warp threads.
Dated thus Thirty-first day of August 1899
COMPLETE SPECIFICATION
Improvements in the Manufacture of Axminster or Tufted Pile
Carpets.
We, WILLIAM HENRY SMITH, of The Birches, Hagley, in the County of Wor-
cester, Chairman of The Carpet Manufacturing Company, Limited, of New Road,
Kidderminster, in the County of Worcester, and THOMAS COOPER, of Farfield,
Kidderminster, aforesaid, Mechanical Engineer, do hereby declare the nature of
Price 8d 1

page_text: the said invention and in what manner the same is to be performed to be par-
ticularly described and ascertained in and by the following statement..
The said invention consists in the manufacture of Axminster or tufted pile
carpets in the following manner
We employ two straight or tight warps and two binding or slack warps and
four rows of weft, two rows of weft above and two below the tight warps. The
said binding warps pass alternately over and under four of the weft shots. The
adjacent warp thieads situated side by side have the crossing parts of the bind-
ing warp threads on one warp opposite the middle of the shed of the adjacent
warp threads so that the flexibility which would arise if the crossing paits of
the several sheds were opposite each other 18 avoided and greater strength and
inflexibility given to the carpet
In order to weave a carpet of the kind described we modify the ordinary
Axminster loom in the following manner
In the said ordinary Axminster loom the cams by which the warps are con-
trolled are so shaped as to produce a stitch in the carpet with two or more
weft shots to one row of pile as 18 well understood. We employ cams so con-
structed as to produce a stitch with four shots of weft to two rows of pile to
the warp threads in each dent of the reed of the loom We employ five cams
four of the said cams working the binding warp threads, the fifth working
the straight or tight warp threads
Figure 1 of the accompanying diawing represents in plan of underside a pièce
of carpet made according to our invention
Figure 2 represents a longitudinal section on the dotted line 2, Figure 1
Figure 3 represents a longitudinal section on the dotted line y y Figure 1.
Figure 4 represents in side elevation the cam employed to work the tight warps
and Figure 5 represents in side elevation one of the series of four cams employed
to work the slack or binding warps
In Figures 1, 2 and 3, a, a are the straight or tight warps, and b,b the binding
or slack warps; c, are the upper wefts and the lower wefts, d (Figures 2
and ) is the pile.
Fiom an examination of Figures 1, 2 and 3 it will be seen that by the
improved manufacture described and illustrated the crossings of adjacent bind-
ing or slack warps b, b do not coincide; that is to say, the crossings of every
other pair of binding warp threads are in line and coincide with the sheds of the
intermediate waip threads Four wefts c, c, care enclosed in each loop of the
binding or slack warps b, b
By manufacturing Axminster or tufted pile carpets in the way described the
rigidity or inflexibility and strength of the carpet are increased and the carpet
thereby improved
The cams Figures 4 and 5 have been designed for use in a loom of the kind
described in the Specification of Pitt's Patent No 235 of 1877 although they may
he used, with slight modification, in other Axminster looms such for example as
the looms described in the Specifications of the following Patents-Skinner
No 7222 of 1888 and Brookes No 980 of 1893 and 981 of 1893.
The four cams (Figure 5) employed are arranged as follows. The pair to
work one pair of the binding warps 66 are set, one in advance of the other, that
is to say, one is turned through á semi-circle with respect to the other. The
pair of cams to work the adjacent binding wai pa b, b are turned through a quad-
rant with respect to the other pair of cams
The cams are driven by gearing from the main shaft of the loom which gear-
ing gives to the cams a rate of rotation one fourth that of the main shaft.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that what
we claim is:—
In the manufacture of Axminster or tufted pile carpets;-employing two

page_text: straight or tight warps and two binding or slack warps and four rows of weft,
two rows of weft above and two below the tight waps the crossings of the bind-
ing warps being arranged so as not to coincide, that is to say, the crossings
of each pair of binding warps are opposite or coincident with the sheds of the
adjacent warps the said manufacture being conducted by the use of cams sub-
stantially as hereinbefore described and illustrated in the accompanying drawing.
Dated the Second day of May 1900.
WILLIAM HENRY SMITH.
THOMAS COOPER.