IMPROVEMENTS IN THE PREPARATION OR TREATMENT OF CLOTH TO BE USED FOR COVERS, BAGS, AND OTHER ANALOGOUS PURPOSES, AND IN THE MEANS, MACHINERY, OB APPARATUS EMPLOYED THEREFOR, AND FOR FORMING OR CONSTRUCTING COVERS OR BAGS OF OR PROM SUCH CLOTH
Year: 1875

page_text: PROVISIONAL SPECIFICATION left by David Anderson Smieton at
the Office of the Commissioners of Patents, with his Petition, on
the 23rd October 1875.
I, DAVID ANDERSON SMIETON, of Dundee, in the County of Forfar,
North Britain, do hereby declare the nature of the said Invention of
"IMPROVEMENTS IN THE PREPARATION OR TREATMENT OF CLOTH TO BE USED FOR
COVERS, BAGS, AND OTHER ANALOGOUS PURPOSES, AND IN THE MEANS, MACHINERY,
OB APPARATUS EMPLOYED THEREFOR, AND FOR FORMING OR CONSTRUCTING COVERS
OR BAGS OF OR PROM SUCH CLOTH," to be as follows, that is to say :-
This Invention which relates to improvements in the preparation or
treatment of cloth to be used in making covers or wrappers for sugar
loaves, for making bags or moulds, in the production of covers or
wrappers generally, and for other analogous purposes, for which cloth
treated according to this Invention is applicable, such for example as
the lining or covering of walls, consists in affixing or cementing to one
or both sides of the cloth one or more layers of paper, which may either
be plain or have figures, designs, or patterns printed or impressed

page_text: lining walls.
In cementing the paper or cloth together the paper is passed between
two rollers preferably covered with india-rubber or other elastic material,
which rollers are rotated in a box or receptacle containing a solution or
admixture of starch, cement, or other mucilaginous or adhesive substance.
From the lower roller the starch or cement is delivered on the under
surface of the paper, which then passes to a calender, and previous to or
on entering between the rollers of which it meets the cloth, and these
together are thereafter subjected to heavy pressure between one or more
sets of calender rolls, by which means the paper is impressed or
embossed on to the cloth to which the starch or cement causes it to
adhere.
screw.
In cutting the paper lined cloth for the purpose of making it into
covers for sugar loaves or for analogous purposes, an apparatus consisting
of a mould or block of the shape of the lined cloth required is used.
Around the block knives or cutters are fixed which are bound together
by a strong metallic or other cover, to which is attached the socket of a
The frame with the cutting knives being attached to a socket
is capable of cutting right and left if necessary, as in the case of the
sugar loaf covers, whereby a saving of cloth is effected. The nut of
the screw is fixed on or in a cross head, and at the top of the screw
levers are attached for turning the same, these being used for pressing
down the knives, and thus cutting through several thicknesses of the
lined cloth at once.
For the purpose of uniting the pieces of cloth a template or frame is
used. This template or frame is constructed of tinned sheet iron or
other metal, to which strengthening strips of steel or other metal are
attached. The template or frame is formed of two sides, a double, and
hinged at one end. The two sides or pieces of lined cloth required to
be sewn are put inside, and the top or lid of the frame is let down and
fastened with a hook or its equivalent. This frame is made a little less
than the actual size of cover or bag required, this being necessary in
order to allow the needle to pass inside the guide to clear the frame.
Guides are fixed to the sewing machine to prevent the frame from
coming in contact with the needle, and the operator has only to keep

page_text: the frame close to the guide at the side of the needle, whilst the feed
motion of the sewing machine carries the frame round, so that the
needle enters the cloth regularly, and the covers are thereby made of
one uniform size.