IMPROVEMENTS APPLICABLE TO BOBBIN AND FLY FRAMES FOR PREPARING COTTON AND OTHER FIBROUS MATERIALS FOR SPINNING
Year: 1872

page_text: LETTERS PATENT to John Hodgkinson, of Bolton, in the County of
Lancaster, Cotton Spinner, and Thomas Thornley, of the same
Place, Mill Manager, for the Invention of "IMPROVEMENTS APPLICABLE
TO BOBBIN AND FLY FRAMES FOR PREPARING COTTON AND OTHER FIBROUS
MATERIALS FOR SPINNING."
Sealed the 29th October 1872, and dated the 1st May 1872.
PROVISIONAL SPECIFICATION left by the said John Hodgkinson and
Thomas Thornley at the Office of the Commissioners of Patents,
with their Petition on the 1st May 1872.
We, JOHN HODGKINSON, of Bolton, in the County of Lancaster,
Cotton Spinner, and THOMAS THORNLEY, of the same Place, Mill
Manager, do hereby declare the nature of the said Invention for "In-
PROVEMENTS APPLICABLE TO BOBBIN AND FLY FRAMES FOR PREPARING COTTON AND
OTHER FIBROUS MATERIALS FOR SPINNING," to be as follows:-
The object of our Invention is to be able to bring together in an
number of clivers and to accumulate them upon the

page_text: spindle bobbin, and so effect a doubling, which may be multiplied at
pleasure by taking a number of the said bobbins and again doubling
them at another spindle. To effect this we employ the ordinary double
beam frame, provided with two sets of draw boxes, one being situate
behind the other. The slivers or rovings are conducted from cans or
bobbins (say in threes) to each boss, and having passed through the back
draw box are conducted to the back part of the front draw box before
they enter the rollers, of which the slivers or rovings belonging to two
or more bosses are brought together and united, and from thence they
pass to the flyer in the usual manner.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Hodgkinson and Thomas Thornley in the
Great Scal Patent Office on the 31st October 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JoHN
HODGKINSON, of Bolton, in the County of Lancaster, Cotton Spinner,
and THOMAS THORNLEY, of the same Place, Mill Manager, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the First day of May, in the year of our
Lord One thousand eight hundred and seventy-two, in the thirty-sixth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto us, the said John Hodgkinson and Thomas Thornley, Her
special license that we, the said John Hodgkinson and Thomas Thornley,
our executors, administrators, and assigns, or such others as we, the said
John Hodgkinson and Thomas Thornley, our 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 APPLICABLE TO BOBBIN AND FLY
FRAMES FOR PREPARING COTTON AND OTHER FIBROUS MATERIALS FOR SPINNING,"
upon the condition, amongst others, that we, the said John Hodgkinson
and Thomas Thornley, by an instrument in writing under our hands and

page_text: seals, or under the hand and scal of one of us, 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 imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said John Ilodgkinson, do hereby
declare the nature of our 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 Drawings, that is
to say:-
The object of our Invention is to be able to bring together in an
effectual manner a number of slivers, and to accumulate them upon the
spindle bobbin, and so effect a doubling, which may be multiplied at
pleasure by taking a number of the said bobbins and again doubling
them at another spindle. To effect this we employ the ordinary double-
beam frame, provided with two sets of draw boxes, one being situate
behind the other. The slivers or rovings are conducted from cans or
bobbins to each boss, and having passed through the back draw box are
conducted to the back part of the front draw box before they enter the
rollers, of which the slivers or rovings belonging to two or more bosses
are brought together and united, and from thence they pass to the flyer
in the usual manner.
Instead of using separate bosses longer bosses may be employed to
take all the ends that are to be doubled, and in order to explain our
Invention more clearly we have appended to this our Specification cer-
tain Drawings which we will now proceed to describe.
Fig. 1 represents in vertical section a portion of a double-beamed
bobbin and fly frame; and Fig. 2 is a plan view thereof.
At a, b, are the rollers of the front draw box, and at c, d, those of the
back draw box, and to which motion is communicated to effect the
drawing in any ordinary manner excepting that according to our In-
vention we adopt a draft not usually employed. At e¹, e², e², e', are a
series of slivers which we will now suppose are proceeding from cans,
and passing between one set of bosses in the back draw box. At
ƒ¹‚ƒª‚ƒ³‚ƒª, is another set of slivers proceeding from cans and passing
between the bosses in the back draw box, after which the two
sets e', e³, e', e', ƒ³, ƒª, ƒ³, ƒ^, are brought together by a trumpet g,

page_text: and pass in their united form through the bosses a, b, of the front draw
box to the spindle h. The draft effected by the rollers may be varied;
but we will for example's sake and for illustrating the advantage of our
Invention state certain particulars which we have found to answer in
practice with the number of slivers above mentioned. At the back
draw box there is a draft of six, and at the front draw box a draft of
four, making in all twenty-four, and eight doublings, in order to effect
which it is well known that according to the usual method adopted
the material would have to pass through several operations in the
roving frame.
We are aware that in double beamed frames a number of slivers have
been passed through the two draw boxes, and subsequently doubled at
the spindle, but in such cases the drawing has necessarily been limited,
as it is in the single roving frame by the drawing power which can in
practice be exercised upon separate slivers, but by bringing a number
of them together behind the front draw box our Invention enables us to
adopt a draft far greater in extent, the consolidated slivers bearing it
without injury to the fibre.
Figs. 3, 4, represent a double beamed frame, to which we take the
bobbins formed in Figs. 1, 2. At h¹³, h², h³, i', i̇², î³, k³, k³, k', are the
rovings proceeding from the bobbins, which are placed upon a creel in
the usual manner, and these rovings after passing between the rollers of
the back draw box are, as in the previous instance, united at g; but in
this instance we prefer to bring them together by trumpets / previously
to their entering the said back draw box, after which they are drawn in
their consolidated state by the front rollers, and delivered to the
spindle h.
Again, giving particulars, for example we may state that supposing
the slivers to have been drawn and doubled as above described, the back
draw box of Figs. 3, 4, has a draft of six, and the front draw box a draft:
of four, which may either complete the preparation of the material, or
it may pass through another machine, but we do not necessarily use
even a second machine, for in some cases the whole operation might be
performed in one only, as at Figs. 1, 2.
We may add that with the particulars above given we find that we :
can effectually prepare the material by taking it direct from the combine

page_text: machine or carding engine to Fig. 1, but these details may be varied, as
will be evident to all practical spinners.
Having thus described and ascertained the nature of our said Inven-
tion, and the manner in which the same is to be performed, we desire
it to be understood that we claim as secured to us under the above in
part recited Letters Patent, joining together or consolidating a number
of slivers or rovings which have passed through the back draw box
before they enter the front draw box.
In witness whereof, I, the said John Hodgkinson, have hereunto
set my hand and seal, this Thirtieth day of October, in the
year of our Lord One thousand eight hundred and seventy-
two.