Im- PROVEMENTS IN THE MANUFACTURE OF CARPETS AND IN THE MACHINERY EMPLOYED THEREIN
Year: 1870

page_text: LETTERS PATENT to Archibald Turner, of Leicester, in the County of
Leicester, Elastic Fabric Manufacturer, for the Invention of "Im-
PROVEMENTS IN THE MANUFACTURE OF CARPETS AND IN THE MACHINERY
EMPLOYED THEREIN."
Sealed the 5th August 1870, and dated the 10th February 1870.
PROVISIONAL SPECIFICATION left by the said Archibald Turner at the
Office of the Commissioners of Patents, with his Petition, on the
10th February 1870.
I, ARCHIBALD TURNER, of Leicester, in the County of Leicester,
Elastic Fabric Manufacturer, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN THE MANUFACTURE OF CARPETS AND IN THE
MACHINERY EMPLOYED-THEREIN,"-to-be-as-follows:-
My first improvement relates to the weft used in carpet weaving, and
consists in preparing the weft with size, glue, or some other analogous

page_text: preparation which will give additional strength to the thread by causing
the fibres to adhere together and form a stiff strong yarn suitable to be
used as weft.
In carrying out this part of my Invention I can use jute or other
cheap fibrous material, and having spun the fibres into a yarn of suitable 5
thickness I soak the yarn while in the skein or hank in the gummy,
glutinous, or gelatinous preparation. When it is removed from the
gummy preparation, and when it is nearly dry, the yarn is wound on
to bobbins, and is afterwards removed on to other bobbins suitable for
placing in my improved carpet looms, and while being so rewound it is 1
passed through a gas flame, where all the loose fibres which do not add
to the strength of the thread are singed off. It is then ready for use in
the loom.
My next improvement relates to a weft stopping arrangement for
stopping the loom in the event of the weft breaking or failing from any 1
cause. To this end I adapt to any convenient part of the loom a light
bell-crank lover, one end of which will be supported by the weft thread
when it is whole and in its proper place. Should, however, the weft
thread fail the arm of the bell-crank lever will not be supported thereby,
and consequently the lever will fall forward, so that it will come in the 2
way of the batten, which will drive it forward and bring it against a stop
piece, by moving which the driving mechanism will be thrown out of
gear and the loom will be stopped.
The next part of the Invention relates to improvements upon the
carpet loom for which I, in connection with W. E. Newton, obtained 2
Letters Patent dated 26th March 1867, No. 899.
The first improvement under this head relates to the mode of actuating
the lever, whereby the thread carrier and instrument for drawing in the
wires are carried into the shed, the object being to cause a dwell at a
certain part of the stroke, so that these instruments may not be drawn 3
out unnecessarily far, but will remain stationary while the crank is
moving through part of its stroke. This is effected by causing the crank
pin to act against a cam piece connected to or forming part of the lever,
instead of its acting in a straight slot in the lever. The crank is
provided with two bowls or rollers, which embrace the cam piece and 3
keep it steady while the crank is rotating.
The next improvement has for its object to prevent the thread carrier
and wire carrier from rebounding or shaking when suddenly brought to

page_text: a standstill at the end of its course. In this construction of loom the
carriers are connected to slides which move to and fro on a rocking
shaft, which as it rocks throws them in and out of gear. The thread
carrier makes two picks in succession, and is then thrown out of gear in
order to allow the wire carrier to pass through the shed, and when the
latter has performed its functions it is in its turn thrown out of gear,
and the thread carrier brought in gear so as to commence operations a
second time. This throwing in and out of gear is produced by means of
a cam connected to the rocking shaft. I have found that these instru-
ments when suddenly brought to a stand are apt to rebound and tremble,
and in order to prevent this the carrying instruments when rocked so
as to be thrown out of gear are received on to a fixed pin or pins, which
will hold them steady.