IMPROVEMENTS IN COP TUBES USED IN SPINNING
Year: 1857

page_text: LETTERS PATENT to John Marland, of Lawrence, in the State of Massa-
chusetts, United States of America, Manufacturer, for the Invention of
"IMPROVEMENTS IN COP TUBES USED IN SPINNING."
Sealed the 3rd July 1857, and dated the 2nd May 1857.
PROVISIONAL SPECIFICATION left by the said John Marland at the
Office of the Commissioners of Patents, with his Petition, on the
2nd May 1857.
I, JOHN MARLAND, of Lawrence, in the State of Massachusetts, United
States of America, Manufacturer, do hereby declaro the nature of the Inven-
tion for "IMPROVEMENTS IN COP TUBES USED IN SPINNING," to be as follows:-
This Invention has for its object improvements in cop tubes used in spinning,
and consists,
First, in applying gutta percha in combination with charcoal in making cop
tubes, by which such tubes are not only capable of bearing greater heat, but
they are also in other respects more useful than cop tubes made of gutta
percha and other gutta percha compounds.
The Invention consists, secondly, in making cop tubes (when using gutta
percha or compounds containing gutta percha) of a conical form, thicker at
the bottom than at the top, and such cop tubes are made suitable for 'spinning
on the bare spindles, except in forming the bottoms of the cops.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Marland in the Great Seal Patent Office on the
2nd November 1857.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
MARLAND, of Lawrence, in the State of Massachusetts, in the United States of
America, Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Second day of May, 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 John Marland, Her special licence that I, the said John Marland,
my executors, administrators, and assigns, or such others as I, the said John
Marland, 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 COP TUBES USED
IN SPINNING," upon the condition (amongst others) that I, the said John
Marland, 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 John Marland, do hereby declare
the nature of the 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 thereof, that is to say:-
"This Invention has for its object improvements in cop tubes used in spinning,
and consists, first, in applying gutta percha in combination with 'charcoal in
making cop tubes, by which such tubes are not only capable of bearing greater
heat, but they are also in other respects more useful than cop tubes made of
gutta percha and other gutta percha compounds. Tho Invention consists,
secondly, in making cop tubes (when using gutta percha or compounds con-
taining gutta percha). of a conical form, thicker at the bottom than at the top,
and such cop tubes are made suitable for spinning on the bare spindles, except
in forming the bottoms of the cops.
Having thus stated the nature of my said Invention, I will proceed more
fully to describe the manner of performing the same.

page_text: Gutta percha is first mixed by any suitable means with powdered charcoal,.
and it is preferred to accomplish such mixing in an ordinary kneading
machine, such as is ordinarily used by manufacturers when working gutta
percha. The proportions of gutta percha and charcoal preferred to be used
are two parts by weight of charcoal powder and three parts by weight of gutta
percha, but I do not confine myself to such proportions. These materials
having been intimately mixed, whilst still in a plastic state are made into cop
tubes in suitable moulds, and of the size and forms desired. It is preferred to
make such cop tubes conical, and thicker at their lower ends than at the upper
ends, as shown by the Drawing at Figures 1 and 2, which respectively show
a perspective view and a longitudinal section of a cop tube of the form pre-
ferred; and Figure 3 shows a section of a cop wound on one of such cop tubes.
I would state that I am aware that it has before been proposed to use gutta
percha in making cop tubes, in which case, however, the cop tubes wero of
like thickness throughout their length.
The novelties or peculiarities constituting this Invention are, first, in the
making of cop tubes of a combination of gutta percha and charcoal. And,
secondly, the making of cop tubes of a conical form, thicker at one end
than at the other, when using gutta percha, and also when using compounds
containing gutta percha.
In witness whereof, I, the said John Marland, have hereunto set my
band and seal, this Thirty-first day of October, in the year of our Lord
One thousand eight hundred and fifty-seven.