IMPROVEMENTS IN TWISTING OR DOUBLING FRAMES FOR YARNS
Year: 1867

page_text: LETTERS PATENT to Thomas Gill, of the Firm of Todd and Gill, Summer
Bridge, near Ripley, in the County of York, Machinist, for the Inven-
tion of "IMPROVEMENTS IN TWISTING OR DOUBLING FRAMES FOR YARNS."
1.
PROVISIONAL SPECIFICATION left by the said Thomas Gill at the
Office of the Commissioners of Patents, with his Petition, on the
8th February 1867.
I, THOMAS GILL, of the Firm of Todd and Gill, Summer Bridge, near
Ripley, in the County of York, Machinist, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN TWISTING OR DOUBLING FRAMES FOR
YARNS," to be as follows:-
The primary object of my Invention is to prevent waste and ridgy yarn or
thread.
According to the usual system the threads or strands of yarn which have to
be twisted pass from the "creel" board between two rollers to the spindle, the
upper roller admitting of being lifted by hand when a breakage takes place ;
as inconvenience arises from this arrangement, I substitute for it the following
arrangement-To a cross bar running the whole length, and in the front part
of the frame, I attach small brackets on the inner side; these brackets I make
the fulcra for what I term "spur" holders; the arms of the "spurs" are
furnished at their extremities with bearings to receive the axes of rollers that
are placed in them, such rollers lying between or upon two rollers, which may

page_text: be parallel. The bearings of the "spurs" are also furnished with flaps at
their sides to prevent the rollers they sustain from lateral motion. To the
brackets attached to the front rail before named I also make room for the
fulera of what I may term "finger levers," such levers being opposite or
directly over each spindle of the frame; those. parts however of the "finger
levers which work upon the fulcra as centres are formed in partially excentric
curves, having also a "flat" filed or cast upon them, and are placed directly
underneath the arms of the "spurs."
The operation is as follows:-Upon. one or more strands of thread that are
being twisted or doubled together breaking the "finger lever," being just
behind the twine or yarn to be twisted, it is very convenient for the "minder"
to press the same backwards, and thus raise up the roller which has its
bearings when not in actual work in the "spur "before named. The strands
of yarn, from the "creel" board are pressed under a rod covered, by preference,
with horsehair for the sake of friction, and after that pass under the back
roller over the adjustable roller carried by the "spur," and between the latter
ruller and the front roller to the spindle; I am thus enabled by this arrange-
ment if breakage does occur in the strands or threads of yarns easily to raise
up the adjustable roller over which the strands or threads have to pass, and
to effect the results before named, inasmuch as in the case of breakage the
adjustable roller being raised by the "finger lever" before named the strands
or threads do not come from the "creel." I may here observe that although
my apparatus is applicable to the twisting or doubling of all sorts of yarns,
I consider it especially adapted to flax yarns, and it effects a considerable
saving of time.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Gill in the Great Seal Patent Office on the 6th
August 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
GILL, of the Firm of Todd and Gill, Summer Bridge, near Ripley, in the s
County of York, Machinist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters:
Patent, bearing date the Eighth day of February, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirtieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the s
said Thomas Gill, Her special licence that I, the said Thomas Gill, my,

page_text: executors, administrators, and assigns, or such others as I, the said Thomas
Gill, my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during
the term therein expressed, should and lawfully might make, use, exercise,
and vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN TWIST-
ING OR DOUBLING FRAMES FOR YARNS," upon the condition (amongst others)
that I, the said Thomas Gill, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Invention, and in
what manner the same was to be performed, and cause the same to bo filed
in the Great Seal Patent Office within six calendar months next and imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Thomas Gill, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say :-
The primary object of my Invention is to prevent waste and ridgy yarn or
thread.
According to the usual system the threads or strands of yarns which have
to be twisted pass from the "creel board" between two rollers to the spindle,
the upper roller admitting of being lifted by hand when a breakage takes
place. As inconvenience arises from this arrangement I substitute for it the
following arrangement :-Upon a round cross bar running the whole length
and in the front part of the frame I secure by means of set screws, for con-
venience of adjustment, small brackets; these brackets I make the fulcra for
what I term "spur" holders; the arms of the "spurs" are furnished at their
extremities with bearings to receive the axes of rollers that are placed in them,
such rollers laying between or upon two rollers which may be parallel. I
prefer, however, generally to make the back roller lower than the front one,
because if the respective centres are upon the same level the intermediate one
or "jockey roller" is thrown too high up, and the yarns being twisted äre
rubbed too much upon the surface of the front roller instead of being emitted
as direct as possible to the spindle. The bearings of the "spurs" are also
furnished with flaps at their sides to prevent the rollers they sustain from
lateral motion. To the brackets attached to the front rail before named I
also make room for the fulcra of what I may term' finger levers," such
levers being opposite or directly over each spindle of the frame; those parts
however of the "finger levers" which work upon the fulcra as centres are
66

page_text: lever L is depressed, and by the pressure of its inner end under the spur
holder raises the latter and the roller E from its bearance upon the rollers D
and F until the breakage in the strands of yarn being twisted has been rectified,
when the lever L is raised and the roller E resumes its proper position. It
will be observed that the roller D is considerably lower than the one F, the
former one being capable of adjustment by means of its carrying bracket D¹
upon the stand H'; also that the rollers E and Fare so arranged as to permit
the yarns to emerge without rubbing materially upon the surface of the
roller F, which would be the case if the back roller were placed higher.
Figure 3 shows the "spur holders" and their rollers in plan; the front and
back rollers are actuated by ordinary gearing, the "jockey roller" being
rotated by friction.
Having now described the nature of my Invention, and in what manner the
same may be performed, I wish it to be understood that without confining
myself to the precise details shown I claim the use of an adjustable "jockey"
or intermediate roller, arranged and capable of being raised or lowered as shown
and described.
Also the use of a friction brush and a sloped or curved guide plate, as shown
and described.
In witness whereof, I, the said Thomas Gill, have hereunto set my
band and seal, this Second day of August, in the year of our Lord
One thousand eight hundred and sixty-seven.
THOMAS GILL.
(L.S.)