AN IMPROVEMENT IN SACKS OR BAGS
Year: 1874

page_text: LETTERS PATENT to William Cox, of Camperdown Linen Works,
Lochee, in the County of Forfar, North Britain, Manufacturer, for
the Invention of "AN IMPROVEMENT IN SACKS OR BAGS."
Sealed the 23rd June 1874, and dated the 8th January 1874.
PROVISIONAL SPECIFICATION left by the said William Cox at the
Office of the Commissioners of Patents, with his Petition, on the
8th January 1874.
I, WILLIAM Cox, of Camperdown Linen Works, Lochee, in the County
of Forfar, North Britain, Manufacturer, do hereby declare the nature of
the said Invention of "AN IMPROVEMENT IN SACKS OR BAGS," to be as
follows, that is to say :-
This Invention, which relates to an improvement by machine sewing
in the construction of sacks or bags, such as are used for holding grain
and other produce or substances, has for its objects to strengthen the
sacks or bags, and to more effectually close the joints or seams of the
sacks or bags between the part where the edges of the fabric of which

page_text: they are composed are sewn together, in order to prevent the escape and
loss of the contents of such sacks or bags through such stitched portions
or seams.
The improvement consists in introducing one or more threads or cords
of any desired size between the stitches so that the stitches surround or
pass through the thread or threads, cord or cords, and enclose it or them
between the sewed or stitched portions of the cloth constituting the
sacks or bags.
The threads or cords used for the purposes of this Invention may be
either tarred or not.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Cox in the Great Seal Patent Office on
the 3rd July 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
Cox, of Camperdown Linen Works, Lochec, in the County of Forfar,
North Britain, Manufacturer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighth day of January, in the
year of our Lord One thousand eight hundred and seventy-four, in
the 37th year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said William Cox, Her special
license that I, the said William Cox, my executors, administrators,
and assigns, or such others as I, the said William Cox, my executors,
administrators, or 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 "AN IMPROVEMENT IN
SACKS OR BAGS," upon the condition (amongst others) that I, the said
William Cox, by an instrument in writing under my hand and seal,
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.

page_text: calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I, the said William Cox, 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, reference being had to the accompanying Drawings
and to the letters and figures marked thereon, that is to say :-
My said Invention, which relates to an improvement by machine
sewing in the construction of sacks or bags, such as are used for holding
grain or other produce or substances, has for its objects to strengthen
the sacks or bags, and to more effectually close the joints or seams of
the sacks.or bags between the parts where the edges of the fabric of
which they are composed are sewn together, in order to prevent the
escape and loss of the contents of such sacks or bags through such stitched
portions or seams.
The improvement consists in introducing one or more threads or cords.
of any desired size between the stitches so that the stitches surround or
pass through the thread or threads, cord or cords, and enclose it or them
between the sewn or stitched portions of the cloth constituting the sacks
or bags.
The threads or cords used for the purposes of this Invention may be
either tarred or not.
And in order that my said Invention may be properly understood I
now proceed more particularly to set forth the system, mode, or manner
in or under which the same is or may be used or practically carried into
effect, reference being had to the annexed Sheet of Drawings and to the
letters and figures marked thereon, that is to say :—
Figure 1 on the annexed Sheet-of Drawings is a side view of a bag or
sack, the seams or joints of which are made in accordance with my
Invention; Figure 2 is a cross section of Figure 1; whilst Figure 3 is a
sectional view upon an enlarged scale illustrating more particularly the
method of forming the joint or seam.
At the parts of the bag or sack marked A, Figure 1, the dotted lines a
represent a thread or cord laid between the edges, which when united
form a side and bottom to the sack or bag.

page_text: In uniting the edges of a piece of cloth-intended to form a sack or bag
the edges are turned over or doubled, as shewn at Figures 2 and 3, and
the cord a having been placed between the doubled edges the stitches b
are then passed around the cord a, and through the doubled edges of the
cloth by a sewing machine, whereby a strong seam is made, and the
contents of the bag prevented from leaking through.
When the seam at the side or bottom of a sack or bag is made through
a bound edge or selvedge, and not at a cut edge, that is to say, a selvedge
representing the edge at which the material forming the sack or bag has
been cut from a web or fabric the doubling of the edge, as herein-before
described and shewn at Figure 3, may be dispensed with.
Instead of the stitches 6 passing round the cord or thread a, as shewn,
they may pass through it, and in lieu of a single thread or cord being
used, as herein-before described, several threads or cords may be placed
between the seams, and the herein-before described thread or cord, or
threads or cords, may be tarred previous to being stitched between the
edges, as herein-before described.
Having now described and particularly ascertained the nature of my
said Invention, and the system, mode or manner in or under which the
same is or may be used or practically carried into effect, I would observe
in conclusion that what I consider to be novel and original and there-
fore claim as the Invention secured to me by the herein-before in part
recited Letters Patent is, the introduction of one or more threads or cords
between the seams or stitched portions of sacks or bags as and for the
purposes herein-before described and shewn.
In witness whereof, I, the said William Cox, have hereunto set
my hand and seal, this First day of July One thousand eight
hundred and seventy-four.