IMPROVE- MENTS IN THROSTLE MACHINES AND FLYS
Year: 1865

page_text: LETTERS PATENT to Thomas Parkinson, of Moorside Spindle and Fly
Works, Bury, in the County of Lancaster, for the Invention of "IMPROVE-
MENTS IN THROSTLE MACHINES AND FLYS."
Sealed the 26th June-1866, and dated the 30th December 1865.
PROVISIONAL SPECIFICATION left by the said Thomas Parkinson at
the Office of the Commissioners of Patents, with his Petition, on the
30th December 1865.
I, THOMAS PARKINSON, of Moorside Spindle and Fly Works, Bury, in the
County of Lancaster, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THROSTLE MACHINES AND FLYS," to be as follows, that is to
say:-
My Invention relates to throstle machines and the flys used therewith.
The first improvement is effected in the form and construction of the flys,-and
the second improvement in the throstle frame. One of my improvements in
the flyers consists in turning one of the legs of an ordinary two-legged fly up
over the head, and thus making it take the place of the ordinary third leg,
which is thus dispensed with. Another improvement in the flyers consists in
making a screw socket in the head of a two-legged fly, and fitting an addi-
tional third leg.with a hollow boss in its centre therein; by these forms the
flyers can be more perfectly balanced both before and after.they are fitted.
The improvement in the frame has for its object to dispense with the
washer cloths and loose material which are at present necessary for securing
the required drag of the bobbin. To effect this, a bush made of bra s, wood, ·

page_text: or any other material is placed upon the spindle under the bobbin and near
the lifting rail; the bushes have a slot on each side for the reception of a pin
fixed in the bottom of the bobbin. In conjunction with these bushes a bar is
placed running the length of the frame; upon this bar small friction blocks
are fixed so that they can be adjusted to project from the bar more or less; a
slight rotating or slide or lift motion of this bar causes the friction blocks to
touch the peripheries of the bobbin bushes, above described and thus give
the exact amount of drag to the bobbin required, and which can be regulated
to the greatest nicety by a greater or less motion of the said bar.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Parkinson in the Great Seal Patent Office- on the
30th June 1866.
TO ALL TO WHOM THESE. PRESENTS SHALL COME, I, THOMAS
PARKINSON, of Moorside Spindle, and. Fly, Works, Bury,, in the County of
Lancaster, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirtieth day of December, in the year of our
Lord One thousand eight hundred and sixty-five, in the twenty-ninth year
of Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said Thomas Parkinson, Her special licence that I, the said
Thomas Parkinson, my executors, administrators, and assigns, or such. others
as. I, the said Thomas Parkinson, 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 law-
fully 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 THROSTLE, MACHINES AND FLYS," upon the condition.
(amongst others). that I, the said Thomas Parkinson, my executors or
administrators, by an instrument 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 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 Thomas Parkinson, do hereby declare
the nature of my said Invention, and in what manner the same is to be per-

page_text: formed, to be particularly described and ascertained in and by the following
statement:-
This Invention relates to throstle machines and the flyers used therewith.
The first improvement is effected in the form and construction of the flys, and
the second improvement in the throstle frame. One of my improvements in
the flyers consists in turning one of the legs of an ordinary two-legged fly up
over the head, and thus making it take the place of the ordinary third leg,
which is thus dispensed with. Another improvement in the flyers consists in
making a scrow socket in the head of a two-legged fly, and fitting an addi-
tional third leg with a hollow boss in its centre therein; by these forms the
flyers can be more perfectly balanced both before and after they are fitted.
The improvement in the frame has for its object to dispense with the
washer cloths and loose material which are at present necessary for securing
the required drag of the bobbin; to effect this, a bush made of brass, wood,
or any other material is placed upon the spindle under the bobbin and near
the lifting rail. The bushes have a slot on each side for the reception of a
pin fixed in the bottom of the bobbin. In conjunction with. theso bushes.a
bar is placed running the length of the frame. Upon this bar small friction
rotary or slide or lift blocks are fixed so that they can be adjusted to project
from the bar more or less. A slight motion of this bar causes the friction
blocks to touch the peripheries of the bobbin bushes, above described and
thus give the exact amount of drag to the bobbin required, and which
can be regulated to the greatest nicety by a greater or less motion of the said
bar. For giving a certain amount of "drag" to the boss and bobbin when
the drag bar is out of gear, I inlay or cover the bearing surfaces with discs of
cloth, india-rubber, or other soft material; in such cases the bobbin is free to
turn upon the boss.
I claim the improvements in the flyers and the drag-adjusting bar, sub-
stantially as herein described.
In witness whereof, I, the said Thomas Parkinson, have hereunto set
my hand and seal, this Thirtieth day of June, in the year of our
Lord One thousand eight hundred and sixty-six.
THOMAS PARKINSON. (L.S.)