CERTAIN IMPROVEMENTS IN MULES FOR SPINNING AND DOUBLING
Year: 1863

page_text: LETTERS PATENT to William Hartcliffe, of Salford, in the County of
Lancaster, Machinist, for the Invention of "CERTAIN IMPROVEMENTS IN
MULES FOR SPINNING AND DOUBLING."
Sealed the 15th April 1864, and dated the 21st October 1863.
PROVISIONAL SPECIFICATION left by the said William Hartcliffe at
the Office of the Commissioners of Patents, with his Petition, on the
21st October 1863.
I, WILLIAM HARTCLIFFE, of Salford, in the County of Lancaster, Machinist,
do hereby declare the nature of the said Invention for "CERTAIN IMPROVE-
MENTS IN MULES FOR SPINNING AND DOUBLING," to be as follows:-
My Invention consists in connecting the self-acting pulley of mules to the
rim shaft by a friction cone or other suitable friction apparatus. To the boss
of the friction cone is fixed the wheel for driving the self-acting parts of the
mule.
The object of my Invention is to allow the pulley to yield previous to
backing-off, thus rendering the backing-off more perfect, and preventing
the injurious shocks in the changes of the mule. By this means the backing-
off lever and the strap lever may be connected together.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Hartcliffe in the Great Seal Patent Office on the
16th April 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
HARTCLIFFE, of, Salford, in the County of Lancaster, Machinist, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-first day of October, 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 William Harteliffe, Her special license that I, the said William Hart-
cliffe, my executors, administrators, and assigns, or such others as I, the said
William Hartcliffe, my executors, administrators, and assigns, should at any
tine 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 "CERTAIN IMPROVE-
MENTS IN MULES FOR SPINNING AND DOUBLING," upon the condition (amongst
others) that I, the said William Hartcliffe, 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 William Hartcliffe, 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 (that is to say) :-
My Invention consists in connecting the self-acting pulley to the self-acting
parts of the mule by a friction cone or other suitable friction apparatus.
The object of my Invention is to allow, the pulley to yield previous to
backing-off, thus rendering the backing-off more perfect, and preventing the
injurious shocks in performing the changes of the mule.
And in order that my Invention may be fully understood, I will proceed
to describe the accompanying Drawing, in which a represents part of the rim.
shaft of a self-acting mule for spinning and doubling; is a pulley fixed to
the shaft a, by which the rim-band pulley is driven for driving the spindles;
c is the self-acting pulley, which is loose on the shaft a; the interior of the

page_text: pulley c forms the friction box for the friction cone d, which is loose on the
boss of the pulley c; to the boss of the friction cone d is fixed the spur pinion e
for driving the self-acting parts of the mule in the usual manner. The object
of thus connecting the self-acting pulley c to the pinion e is to allow the pulley
to yield while the driving strap is traversing from the pulley b to the pulley c
previous to backing-off, thus rendering the backing-off more perfect, and pre-
venting the injurious shocks in performing the changes of the mule. By
means also of these improvements the backing-off' lever and the strap lever
may be connected together so as to act simultaneously. When the levers are
so connected I make the cam f for the strap lever with an adjustable plate g;
the cam f is fixed as usual to the cam shaft h, and by varying the position of
the plate g, the time for shifting the driving strap on to the pulley b to
assist the winding-on motion during the running in of the carriage can be
adjusted.
Having thus stated the nature of my Invention, and described the manner
of performing the same, I declare that I claim, connecting the self-acting
pulley c to the pinion e of self-acting mules by a friction cone or other suitablo
friction apparatus, and the adjustable plate 9 of the cam f, in the manner and
for the purposes described.
In witness whereof, I, the said William Hartcliffe, have hereunto set my
hand and seal, this Fifteenth day of April, One thousand eight hundred
and sixty-four.
W. HARTCLIFFE. (L.S.)