IMPROVEMENTS IN SEWING MACHINES
Year: 1870

page_text: LETTERS PATENT to William Boyle Moore, of 51, Grafton Street,
Dublin, and William Boyle Moore, junior, of 89, Donegal Street,
Belfast for the Invention of " IMPROVEMENTS IN SEWING MACHINES.”
PROVISIONAL SPECIFICATION left by the said William Boyle Moore
and William Boyle Moore, junior, at the Office of the Commissioners
of Patents, with their Petition, on the 17th February 1870.
We, WILLIAM BOYLE MOORE, of 51, Grafton Street, Dublin, and
WILLIAM BOYLE MOORE, junior, of 89, Donegal Street, Belfast, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN SEWING
MACHINES," to be as follows, viz. :-
An attachment is fixed to the movable plate, on which is fastened by
a screw the movable hook, the needle passing between the hook and the
attachment is kept in its true position and the thread kept from moving
in the eye of the needle by the needle eye passing under the attachment,

page_text: thereby effecting the long desired object, a true loop. A simple
attachment with a tongue passing into a grooved needle making it
impossible to put the needle in crooked, which is one great difficulty to
operators.
4
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Boyle Moore and William Boyle Moore
junior, in the Great Seal Patent Office_on_the_6th August 1870..
TO ALL TO WHOM THESE PRESENTS SHALL COME, wc, WILLIAM
BOYLE MOORE, of 51, Grafton Street, Dublin, and WILLIAM BOYLE
MOORE, junior, of 89, Donegal Street, Belfast, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Seventeenth day of February, in the year
of our Lord One thousand eight hundred and seventy, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said William Boyle Moore & William Boyle
Moore, junior, Her special licence that we, the said William Boyle Moore,
and William Boyle Moore, junior, our executors, administrators, and
assigns, or such others as we, the said William Boyle Moore & William
Boyle Moore, junior, 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 IN SEWING MACHINES," upon the condition (amongst
others) that we, the said William Boyle Moore and William Boyle
Moore, junior, our executors or administrators, by an instrument in
writing under our, 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 we, the said William Boyle Moore and William
Boyle Moore, junior, do hereby declare the nature of our said Invention,

page_text: and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement, viz. :—
The object of this Invention is to secure a perfect looping of the thread
so that stitches may not be missed as is so often the case in consequence of
the liability of the thread to loop partially on both sides of the needle
instead of perfectly on one side only.
The Invention is more immediately applicable to the sewing machines
of Charles Raymond, which are well known in the English market,
although it is applicable to others also.
To effect the above object a piece of metal of the required form, called
an attachment, is fixed to the movable plate that carries the movable
hook in such a manner as to allow the needle to pass between the hook
and the said attachment to prevent the partial looping of the thread on
that side of the needle that is away from the hook; by this means the
slackness of the thread is all thrown into a perfect loop on the side next
the hook, and the possibility of a stitch being missed from imperfect
looping is entirely prevented. In order the more completely to secure
the well working of this contrivance we make the thread to pass through
an eye or eyes in the cramp post attached to the needle bar instead of its
passing round the said cramp post as at present in the machines above
referred to, the advantage of this being that there is no tension except at
the moment of the cramp post carrying the thread between itself and the
cramping roller. To secure the needle being placed with facility in its
right position we employ a simple attachment with a tongue that passes
into a groove in that part of the needle by which it is held in the
needle bar.
In witness whereof, we, the said William Boyle Moore and William
WILLIAM BOYLE MOORE.
(L.S.)
WILLIAM BOYLE MOORE, JUNIOR. (L.S.)