IMPROVEMENTS IN THE TREATMENT OR PREPARATION OF JUTE AND OTHER SIMILAR FIBRES, AND IN MACHINERY OR APPARATUS EMPLOYED THEREFOR
Year: 1875

page_text: PROVISIONAL SPECIFICATION left by David Rattray Malcolm at the
Office of the Commissioners of Patents, with his Petition, on the
28th June 1875.
I, DAVID RATTRAY MALCOLM, of Dundee, in the County of Forfar,
North Britain, Manager to the Firm of Malcolm, Ogilvie, and Company,
Manufacturers, do hereby declare the nature of the said Invention of
"IMPROVEMENTS IN THE TREATMENT OR PREPARATION OF JUTE AND OTHER SIMILAR
FIBRES, AND IN MACHINERY OR APPARATUS EMPLOYED THEREFOR,'
to be as
follows, that is to say :-
"
This Invention which relates to improvements in the treatment or
preparation of jute and other similar fibres, has reference to the
distribution of oil and water or other liquid substances on the fibres
previous to the operation of spinning the same.
As hitherto practised the oil and water have been distributed by hand,
in what is usually called the process of "batching," previous to the jute
or other fibres being fed into the softening or batching machine, or by
mechanical means whilst the fibre is passing through the same.

page_text: Under this Invention the oil and water or other liquid is fed to and
distributed upon the fibre whilst it is passing the feeding roller or
rollers of the machine, commonly called the "card," and as the fibre is
fed in regular and accurate quantities over the " card," the oil and
water or other liquid can be applied with greater regularity and accuracy
and distributed upon and incorporated with the fibre more thoroughly
than under either of the processes herein-before referred to, by which a
saving of oil is effected.
The feeding of the oil and water or other liquids upon the fibre while
it is passing the feeding roller or rollers of the "card," may be effected
by any of the mechanical means at present in use upon the softening or
batching machine or by other equivalent means.
A further part of this Invention consists of improvements in me-
chanism or apparatus for feeding and distributing the oil and water or.
other liquids upon the fibre, and which part of the Invention may be
used to feed and distribute the oil and water or other liquid upon the
fibre while passing the feeding roller or rollers of the "card" in the
manner set forth with reference to the first part of this Invention, or it
may be used to feed and distribute the oil and water or other liquid upon
the fibre whilst it is passing through the softening or batching machine;
in either case a saving of oil is effected.
The apparatus employed in effecting the second part of this Invention,
consists of a circular trough or vessel which extends throughout or
nearly throughout the entire length of the feeding roller of the carding
engine. In this circular trough or vessel two longitudinal receptacles or
pockets extending throughout its entire length are formed, and into
one of these pockets, which is placed higher than the other, oil or
other fluid is regularly fed, whilst water is conducted into the lower
pocket.
The oil or other fluid is caused to flow equally upon the surface of the
water in the lower pocket, and together with the water it is taken up
by a circular brush revolving in the trough or vessel, which brush
throws and distributes the fluids in an admixed condition upon the jute
or other fibre as it passes the feeding roller of the card.
The quantity of oil or other fluid so distributed on the fibre may be
regulated by any of the means hitherto employed upon the softening or

page_text: batching machine for that purpose, but it is preferred to use a box'
sufficiently large to contain a supply of fluid sufficient for one day's use
of the carding engine, or for any other desired length of time, and into
which is forced by spur gearing or other equivalent means a piston or
plunger at such a rate of speed as to cause the fluid to overflow in a
regular and measured quantity into the circular trough herein-before
referred to.