CERTAIN IMPROVEMENTS IN MACHINERY OR APPARATUS FOR DOUBLING' COTTON AND OTHER FIBROUS MATERIALS
Year: 1853

page_text: Lancaster, Manager, for the Invention of "CERTAIN IMPROVEMENTS
IN MACHINERY OR APPARATUS FOR DOUBLING' COTTON AND OTHER
FIBROUS MATERIALS."
Sealed the 16th February 1854, and dated the 16th August 1853.
PROVISIONAL SPECIFICATION left by the said Peter Foxcroft at
the Office of the Commissioners of Patents, with his Petition,
on the 16th August 1853.
I, PETER FOXCROFT, of Salford, in the County of Lancaster, Manager,
do hereby declare the nature of the said Invention for "CERTAIN
IMPROVEMENTS IN MACHINERY OR APPARATUS FOR DOUBLING COTTON AND
OTHER FIBROUS MATERIALS" to be as follows:-
My Invention relates to the doubling frame as employed for doubling
yarn or threads. My Invention is designed to obviate the great loss
occasioned by the "lapping" of the threads around the upper delivering
roller in the event of any of the threads breaking. The apparatus by
means of which I effect this object is as follows:-Immediately in front
of the delivering rollers (that is, between them and the spindle.) I place

page_text: a series of small levers mounted loosely upon a shaft. The upper end
of these levers is of a wedge form, and is opposite to the point of
contact of the two delivering rollers; each of these levers is provided
with an eye or cure through which the doubled thread passes to the
spindle, the tension of the thread keeping the wedge formed ends of the
leavers away from the points of contact of the said rollers. If one of
the doubled thread breaks between the delivering rollers and the spindle
corresponding the lever falls, and its wedge formed and coming
between the two delivering rollers lifts the upper one out of the
contact with the lower one, and thus stops the delivery of the thread,
and consequently the lapping of the same upon the rollers. If one of
the single threads breaks, the other single thread, owing to its weakness,
becomes broken the instant it reaches the flyer, thus allowing the lever
to fall, and stop the delivery of the yarn.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Peter Foxcroft in the Great Seal Patent Office
on the 16th February 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,
PETER FOXCROFT, of Salford, in the County of Lancaster, Manager,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixteenth day of August, in the year
of our Lord One thousand eight hundred and fifty-three, in the seven-
teenth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Peter Foxcroft, Her especial license
that I, the said Peter Foxcroft, my executors, administrators, and as-
signs, or such others as I, the said Peter Foxcroft, my executors, admi-
nistrators, 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 "CERTAIN IMPROVEMENTS IN

page_text: MACHINERY OR APPARATUS FOR DOUBLING COTTON AND OTHER FIBROUS MA-
TERIALS," upon the condition (amongst others) that I, the said Peter
Foxcroft, by an instrument in writing under my hand and seal, 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
be filed in the Great Seal Patent Office within six calendar months
next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Peter Foxeroft, do hereby de-
clare the nature of my said Invention, and in what manner the same is
to be performed, to be particularly described and ascertained in and by
the following statement and accompanying Drawing (that is to say):
My improvements in machinery or apparatus for doubling cotton
and other fibrous materials relate to the doubling frame, as employed
for doubling yarn or thread. My Invention is designed to obviate
the
great loss occasioned by the "lapping" of the threads around the
upper delivering roller in the event of any of the threads breaking.
The apparatus by means of which I effect this object is as follows:-
and is clearly exhibited in the Drawing attached to these presents
being shewn half the real size. Fig. 1, is an end elevation of part of
a doubling machine, shewing my improved apparatus as applied thereto;
and Fig. 2, is a front view of part of the same, also shewing clearly the
application of my improvement. Immediately in front of the delivering
rollers a, a, (that is, between them and the spindle b,) I place a series
of small levers, fingers, or "scotches" c, c, c, mounted loosely upon a
shaft d, d. The upper end of these levers or scotches is of a wedge
form, and is placed opposite to the point of contact of the two deliver-
ing rollers a, a; each of these levers is provided with an eye or curb e,
through which the doubled thread passes to the spindle, the tension of
the thread (exhibited by the red lines) keeping the wedge formed ends
of the levers or scotches away from the point of contact of the said
rollers. If one of the doubled thread breaks from whatever cause
between the delivering rollers, and the spindle or the bobbin ceases to
drag so as not to keep the thread tight and cause "snarls," the corre-
sponding lever or scotch c, falls, and its wedge formed end coming
between the two delivering rollers lift the upper one out of contact

page_text: with the lower one, and thus "scotching," it stops the further delivery
of the thread, and consequently the lapping of the same upon the
"rollers." If one of the single threads breaks, the other single thread,
owing to its weakness, becomes broken the instant it reaches the flyer f,f,
thus allowing the lever to fall and stop the delivery of the yarn. The
levers c, are shewn in Figure 1, in red, as having fallen, owing to the
supposed breakage of the thread, and in the act of effecting the lifting
of the upper delivering roller.
Having thus described the nature of my said improvements in
machinery or apparatus for doubling cotton and other fibrous materials,
I desire it to be distinctly understood that I claim as of my Invention
the novel application, employment, or use of a series of small levers,
fingers, or "scotches" for the purpose of lifting the top delivering
roller or rollers in the manner clearly exhibited in the Drawing
attached to these presents, and above particularly set forth.
In witness whereof, I, the said Peter Foxcroft, have hereunto set
my hand and seal, the Fifteenth day of February, in the year
of our Lord One thousand eight hundred and fifty-four.
PETER FOXCROFT. (L.S.)