AN ADDITION TO THROSTLES FOR DOPPING THE BOBBINS
Year: 1857

page_text: LETTERS PATENT to Henry Hall, of Spotland, in the Parish of Rochdale,
in the County of Lancaster, Cotton Spinner and Manufacturer, for the
PROVISIONAL SPECIFICATION left by the said Henry Hall at the Office
of the Commissioners of Patents, with his Petition, on the 20th March
1857.
1. HENRY HALL, of Spotland, in the Parish of Rochdale, in the County of
Lancaster. Cotton Spinner and Manufacturer, do hereby declare the nature
of the said Invention for "AN ADDITION TO THROSTLES FOR DOPPING THE BOBBINS,"
to be as follows:-
This Invention applies to those machines used in spinning cotton and other
fibrous materials called "throstles," and consists of an improvement therein or
addition thereto for the purpose of facilitating the doffing of the full bobbins,
and replacing them with empty ones.
In carrying out this Invention, each spindle is furnished with a small toothed
wheel having a worm or toothed rack in gear therewith, by actuating which
the flyers are unscrewed or skewed; bevil gearing may be employed for that
purpose.
Tinder the guide wire board a shait or rail is to be fixed, having "fly-

page_text: holders" attached opposite to each spindle or otherwise, by turning which the
flyers are lifted off the spindles after having been 'unscrewed. In place of the
ordinary lifting rail" a "lifting plate" is employed, which is so arranged as to
be capable of traversing to the top of the spindle and then turning over, so as
to throw all the full bobbins into a long portable narrow box, which is provided
for the purpose of receiving them. The empty bobbins are placed upon the
spindles (several at a time) by means of a portable wooden or metal frame,
provided with recesses the same distance apart as the spindles. A handle or
hand wheel is applied to the "tin roller," by turning which (after the empty
bobbins are put on, and the flyers put down by the "fly-holders") the flyers
will be screwed on to the spindles, and as much yarn wound off the full
bobbins in the box on to the empty bobbins as will cause them to drag.
This same handle or hand wheel may also be used to unscrew the flyers for
doffing as soon as they are found to work so easily as to dispense with the
wheels and toothed rack or worm above mentioned.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Henry Hall in the Great Seal Patent Office on the 19th
September 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, 1, HENRY
HALL, of Spotland, in the Parish of Rochdale, in the County of Lancaster,
Cotton Spinner and Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing dated the Twentieth day of March, in the year of our Lord One
thousand eight hundred and fifty-seven, in the twentieth year of Her reign,
did. for Herself, Her heirs and successors, give and grant unto me, the
said Henry Hall, Her special licence that I. the said Henry Hall, my
executors, administrators, and assigns. or such others as I, the said Henry
Hall, 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 "AN ADDITION TO THROS-
TLES FOR DOFFING THE BOBBINS," upon the condition (amongst others) that I.
the said Henry Hall, 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

page_text: 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 Henry Hall, do hereby declare the
nature of my 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 in writing, and on reference to the Drawings hereunto annexed, that
is to say:
My Invention applies to those machines used in spinning cotton and other
fibrous materials called "throstles," and consists of an improvement therein
or addition thereto, for the purpose of facilitating the doffing of the full
bobbins, and replacing them with empty ones.
In carrying out this Invention, each spindle is furnished with a small
toothed wheel. having a worm or toothed rack in gear therewith, by actuating
which the spindles are unscrewed, and the flyers released or skewed: bevil
gearing, or a worm or worm wheel may be used for that purpose, or a
moveable frame may be employed, carrying a piece of wood or other material
suitably covered, which by pressing against the wharves unscrews them, as it
is slidden from one end of the throstle to the other.
Under the guide-wire board a shaft or rail is to be fixed, having "fly-
holders attached opposite to each spindle or otherwise, by turning which the
flyers are lifted off the spindles after having been unscrewed.
In place of the ordinary "lifting rail" a "lifting plate" is employed,
which is so arranged as to be capable of traversing to the top of the spindle
and then turning over, so as to throw all the full bobbins into a long portable
narrow box, which is provided for the purpose of receiving them: or the full
bobbins may be lifted off the spindles by means of a portable lifting rail.
The empty bobbins are placed upon the spindles (several at a time) by
means of a portable wooden or metal frame, provided with recesses the same
distance apart as the spindles; or a long strip of wood may be employed
furnished with pegs, corresponding to the distance of the throstle spindles.
upon which pegs the empty bobbins are placed. This frame being placed
opposite the spindles and overturned, the bobbins will fall off the pegs on to
the spindles.
A handle or hand wheel is applied to the tin roller," by turning which
(after the empty bobbins are put on and the flyers put down by the "fly-
holders") the spindles will be screwed into the flyers, and as much yarn wound
off the full bobbins in the box on to the empty bobbins, as will cause them
to drag.

page_text: This same handle or hand wheel may also be used to unscrew the spindles
from the flyers for dofling, as soon as they are found to work so easily as to
dispense with the wheels and toothed rack, or other unscrewing apparatus
above mentioned.
Having thus described the nature and object of my said Invention of "An
Addition to Throstles for Dofling the Bobbins," will proceed to describe
the manner of carrying the same into practical effect, and in order that the
same may be more readily described and perfectly understood, I have annexed
to these Presents a Sheet of Drawings, shewing the application of my Inven-
tion to an ordinary throstle, and have marked the same with figures and
letters of reference corresponding with those in the following explanation
thereoi
Figure is an elevation of part of a throsile, shewing the application
thereto of the apparatus for unscrewing the spindles and lifting the flyers;
Figure 2 is an enlarged view of one spindle and flyer, and its adjuncts; and
Figure 3 is a side view of the same (partly in section), shewing the flyer
raised.
In Figure 1, A, A, is the end frame of the throstle; B. B. is the spindle
rail: C, C. the lifting rail; D, D, the guide wire board; E. E, are the
drawing rollers; and F. F, is the tin roller.
In Figures 2 and 3, a, a, is the spindle; b, h, the wharve; and c, c, the
flyer; d, d, are small toothed wheels fast on the spindles, and actuated by
sliding the rack e, e; is a rod placed under the guide wire board D. D, and
furnished opposite to each spindle with a flyer lifter g. 9.
When it is desired
to lift the flyers, the flyer lifters g, g, are brought forward. till they prevent
the flyers from turning the rack e, e, is then slidden along. so as to turn all
the spindles and unscrew them from the flyers, and the flyers are then lifted,
as shewn at Figure 3.
Figure 4 shews a substitute for the rack and wheel for unscrewing the
spindles.
, a is a light iron frame, furnished at each end with an angle iron, which
The
is capable of sliding upon the spindle rails of two opposite throstles.
frame a, a, is furnished with two brackets or uprights b. b, in which a rod c. 6.
is capable of sliding. This rod is provided at one end with a strip of wood
about eight inches long, faced with half-round india-rubber, which fits into
the groove of the wharves. This rod and strip are pressed forward by means
of the lever d. d, which is secured by the chain e, e. The frame being placed
between two throstles (resting upon the spindle rails), and the strip pressed
against the wharves of the throstle to be doffed, the frame is pushed by hand

page_text: from one end of the throstle to the other, and the friction of the strip against
the wharves will unscrew all the spindles from the flyers. The whole of this
apparatus is portable, and may be taken from one throstle to the other, as
required. When the spindles have been unscrewed and the flyers lifted, the
next thing to accomplish is to remove the full bobbins. This may either be
done by employing a self-acting lifting plate, which is caused to rise to the top
of the spindles, and then turn over so as to lift off the full bobbins and throw
them into a long narrow moveable trough or box h, h (Figure 3), provided for
that purpose, as previously described; or the bobbins may be removed by
means of the portable lifting rail, shewn in Figure 5. This is a long thin
rail a, a, bevilled at the front edge, and provided with slots corresponding
with the distances of the spindles on the throsile. This rail may be made of
any suitable length. The bevilled edge is forced under the bobbins, which are
then lifted off the spindles into the box.
Figures 6 and 7 shew front view and section of an apparatus for putting
several bobbins onto the spindles at once. a, a. is a rail, furnished at suitable
intervals with recesses for receiving the heads of the bobbins b. b. This rail
may be of any suitable length, and being charged with bobbins is taken to the
front of the throstle opposite to the empty spindles, and turned over so as to
allow each bobbin to fall on to its corresponding spindle.
Figure 8 shews a modification of this rail, wherein the bobbins are placed
upon pegs instead of in recesses. The flyers are then put down on to the
points of the spindles by the flyer holders, and the tin roller F. F. is turned
by the handle (see Figure 1). which will screw the spindles into the flyers.
and also wind as much yarn off the full bobbins in the box on to the empty
bobbins on the spindles as may be necessary to cause the bobbins to drag.
This same handle may also (as above mentioned) be employed to unscrew the
spindles from the flyers for doffing when they are found to work so easily as
to dispense with the rack and wheels, or other unscrewing apparatus above
mentioned.
Having thus described the nature and object of my said Invention of "An
Addition to Throstles for Dofling the Bobbins." together with the manner of
carrying the same into practical effect, I would remark in conclusion that I
claim as my Invention.
Firstly, the apparatus shewn in the Drawings and above described, or any
mere modification thereof. for unscrewing the spindles and lifting the flyers.
Secondly, I claim the apparatus shewn in the Drawings and above described,
or any modification thereof, for doffing several full bobbins at one time.
Thirdly, I claim the apparatus shewn in the Drawings and above described,

page_text: or any modification thereof, for placing several empty bobbins on to the spindles
At one time.
And, fourthly, I claim the application of a handle or hand wheel to the
tin roller shaft, in the manner and for the purposes above, particularly set
forih.
In witness whereof. I, the said Henry Hall, have hereunto sei my
hand and seal, this Seventeenth day of September. in the year of our
Lord One thousand eight hundred and fifty-seven.
HENRY HALL. (L..S.)