IMPROVEMENTS IN MACHINERY FOR DOUBLING, TWISTING, AND WINDING SILK AND OTHER FIBROUS SUBSTANCES
Year: 1863

page_text: LETTERS PATENT to Barnaby Angelo Murray, of the City of Manchester,
Machinist, for the Invention of "IMPROVEMENTS IN MACHINERY FOR
DOUBLING, TWISTING, AND WINDING SILK AND OTHER FIBROUS SUBSTANCES."
Sealed the 12th February 1864, and dated the 12th November 1863.
PROVISIONAL SPECIFICATION left by the said Barnaby Angelo Murray
at the Office of the Commissioners of Patents, with his Petition, on
the 12th November 1863.
I, BARNABY ANGELO MURRAY, of the City of Manchester, Machinist, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
MACHINERY FOR DOUBLING, TWISTING, AND WINDING SILK AND OTHER FIBROUS
SUBSTANCES," to be as follows:-
My Invention consists, first, in placing vertically, or one over the other, on
the same spindle, two or more portions of the yarn or thread to be doubled;
such yarn or thread may be wound on bobbins or tubes, or in the form of cops,
or in any other manner whatever.
Secondly, in employing a frame or carriage with two or more compartments,
placed also vertically, or one over the other, each having a separate spindle,
which revolves with the material or bobbin, tube, or cop on which it is wound.
The advantage of such arrangement being that the great tension resulting
from the centrifugal force consequent on the position of the bobbins in the
bobbin carriages placed outside the spindles is avoided. This is particularly
advantageous when a slight tension is required for fine materials.
And, thirdly, in certain improvements upon former Letters Patent granted

page_text: to me on the Twenty-fourth February One thousand eight hundred and fifty-
five, No. 409.
In the Specification of the said Patent I described how yarns or threads
were doubled by causing the bobbin carriage and the taking-up reel to
revolve. Now according to my present Invention I make the taking-up
spindle to carry a bobbin as in the ordinary machines for spinning called
"throstles," still, however, reserving the right to use, if I deem fit, the
mechanism employed in said former Patent, or any other which I may
consider advantageous.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Barnaby Angelo Murray in the Great Seal Patent Office on
the 12th May 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, BARNABY
ANGELO MURRAY, of the City of Manchester, Machinist, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twelfth day of November, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-seventh year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Barnaby Angelo Murray, Her special license that I, the said Barnaby
Angelo Murray, my executors, administrators, and assigns, or such others as
I, the said Barnaby Angelo Murray, 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 MACHINERY FOR DOUBLING, TWISTING, AND WINDING SILK
AND OTHER FIBROUS SUBSTANCES," upon the condition (amongst others) that I,
the said Barnaby Angelo Murray, 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 manuer 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 the said Barnaby Angelo Murray, do hereby
declare 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 (that is to say):-

page_text: My Invention consists, first, in placing vertically, or one over the other, on
the same spindle, two or more portions of the yarn or thread to be doubled;
such yarn or thread may be wound on bobbins or tubes, or in the form of cops,
or in any other manner whatever.
Secondly, in employing a frame or carriage screwed on or otherwise fastened
to a spindle, with two or more compartments, placed also vertically, or one
over the other, each having a separate spindle, which revolves with the
material or bobbin, tube, or cop, on which it is wound, and so situated as to
be directly over the centre of the large spindle to which the carriage is
screwed or fastened. The advantage of such arrangement being that the
great tension resulting from the centrifugal force consequent on the position
of the bobbins in the bobbin carriages (placed outside the spindles) is avoided.
This is particularly advantageous when a slight tension is required for fine
materials.
Thirdly, in certain improvements upon former Letters Patent granted to
me on the Twenty-fourth of February One thousand eight hundred and fifty-
five, Number 409.
In the Specification of the said Patent I described how yarns or threads
were doubled by causing the bobbin carriage and the taking-up reel to
revolve. Now according to my present Invention I make the taking-up
spindle to carry a bobbin as in the ordinary machines for spinning called
" throstles."
And, fourthly, the combination of the carriage, having the bobbins or cops
outside the spindle, with the throstle.
And in order that my Invention may be fully understood, I will proceed to
describe the accompanying Sheet of Drawings, reference being had to the
Figures and letters marked thereon.
Figure 1 is a plan, and Figure 2 an elevation, of part of a machine for
doubling, twisting, and winding, constructed according to my improvements.
The machine is somewhat similar to an ordinary "throstle" doubling machine,
and it consists of a row of vertical spindles marked a and b, the former sup-
porting the two bobbins c, c, containing the yarn to be doubled and twisted,
and the latter the bobbin d, on which the thread is wound. All the spindles
a and 6 revolve in footsteps in the lower rail e, and in bearings in the bolster
rail f. The bobbins d are raised and lowered by the copping rail g in the
ordinary manner; this last rail has semicircular recesses, as shewn in Figure 1,
to allow it to rise and fall without touching the bobbins c. Above and between
the spindles a and b are the pulleys h, fixed to short shafts h¹, which are turned
round by the bevel pinions i on the longitudinal shaft i, gearing into the

page_text: wheels fixed to the shafts h¹. To each spindle a is fixed the carriage a¹,
the legs of which are connected by the stays a³, which support the upper
bobbins c; these stays are hooked to one of the legs of the carriage, and they
are binged to the other. In doffing the lower bobbin when empty, the stays
are swivelled partly round, as shewn by dots in Figure 1; these stays also
prevent the legs of the carriage from expanding by the centrifugal force pro-
duced by the rapid rotation of the spindle. To the legs of the carriage are
also attached the thread guides a³. When the machine is at work the
spindles are turned rapidly round in the same direction by bands passing
round a tin drum and around wharves on the spindles, as in throstles" of the
usual construction, or in any other convenient manner. The yarns from the two
bobbins c, c, in passing upwards are doubled and partly twisted together before
they arrive at the pulley h, around which they are taken one or more times to
give the requisite friction; the doubled and partly twisted yarn or thread then
descends to the bobbins d on the spindles b, on which, having received its full
complement of twist by the ordinary throstle action, it is wound by the flyer
62. As it is sometimes requisite to vary the relative speed of the spindles a
and b, I have shewn two wharves of different diameters on the spindle a,
but it may be necessary to have two wharves on the spindle 6 also. The
above arrangement is suitable for doubling, twisting, and winding dry yarn ;
but when the operation is performed wet, I employ the arrangement shewn in
Figure 3, which represents a transverse section of part of a machine similar
to the one above described, and Figure 4 is a front view of the same. The
yarns from the bobbins c when doubled pass through the eye 3, and then over
the guide rail k and guide to the trough m. The doubled yarn is then taken
round the guide peg n, over the roller o, then between the rollers o and p,
again around the peg n, and again over the top roller o, from which it descends
through another eye similar to j, and thence to the bobbin d, on which it is
wound as before described.
In this view a is a
Figure 5 represents a modification of my Invention.
spindle corresponding to the spindle a in Figure 2. The cops of yarn to be
doubled and twisted are stuck on skewers p; the lower one is mounted in a
recess in the upper end of the spindle a, or it may be a brass step screwed on
to it; and in another recess in a moveable step q', which connects the legs of
the carriage a', and is free to be moved up and down the legs of the carriage
to facilitate the removal of the empty skewers and replace them with full cops.
The skewer of the upper cop is mounted in a similar manner in a recess in
the moveable step 9', and in another recess in the step r, which is also loose
on the legs of the carriage; the yarn from these cops is taken through the

page_text: guide wires s attached to the cross pieces t, both of which are fixed to the legs
of the carriage a¹.
Figure 6 represents another modification of my Invention. In this case, to
the spindle a is fastened the carriage a¹, to the legs of which are connected
the stays a, which are hinged to one of the legs and hooked to the other, as
in Figures 1 and 2. To these stays are fixed the skewers p, on which the
cops are fixed; the stays t for the guide wires s are also hinged to one of the
legs of the carriage a¹ and hooked to the other to facilitate the placing of a
full cop on the lower skewer p.
Figure 7 represents the mode of combining my present Invention with the
improvements secured to me by Letters Patent bearing date the Twenty-fourth
of February One thousand eight hundred and fifty-five, Number 409. To
the spindle a is fixed the carriage a', supporting the two bobbins or cop c,
from which the yarn is drawn, and after being doubled and twisted, as
described in reference to Figures 1 and 2, is wound on the bobbin d of the
spindle b.
Having thus stated the nature of my Invention, and described several
modes of carrying the same into operation, I declare that I claim placing
vertically, or one over the other, on the same spindle, or in a carriage con-
nected to the spindle, two or more bobbins or cops containing the yarn or
thread to be doubled and twisted, and winding the same on another bobbin,
in the manner described and shewn in the Drawings, or any modification of
the same. I also claim the combination shewn in Figure 7, embracing part
of the improvements secured to me by the former Letters Patent above
referred to, with my present improvements.
In witness whereof, I, the said Barnaby Angelo Murray, have hereto
set my hand and seal, this Tenth day of May One thousand eight
hundred and sixty-four.
B. A. MURRAY. (L.S.)