Improvements in Machinery for the Treatment of Vegetable Fibres.
Year: 1897

page_text: Date of Application, 30th Jan., 1897
Complete Specification Left. 1st Nov., 1897-Accepted. 29th Jan.. 1898
Improvements in Machinery for the Treatment of Vegetable Fibres.
I, ROBERT JAMES EKE, of 34A, White Lion Street, Pentonville, in the County
of London, Engineer, do hereby declare the nature of this invention to be
as follows:-
"
The first part of this invention relates to decorticating machinery and consists
in the employment of special beaters as hereafter described, also means for shaking
the ribbons as they leave the machine in order to shake off any pieces of woody
material that may adhere thereto after having been beaten.
The second part of this invention relates to cleaning, softening and separating
the ribbons.
The beaters consist of rollers deeply grooved longitudinally so as to form arms
or blades or instead of forming such arms or blades as above I may fix blades
around the circumference of rollers. A convenient way of making this latter form
of beater is to fix a plate or disc at each end of a shaft or roller such plates or dises
having radial grooves in which the blades slide so as to rest on the surface of the
shaft or roller. The said blades are suitably secured in position.
I mount the said beaters (of which I may have one or more pairs) between pairs
of tension rollers, these rollers I prefer to have corrugated longitudinally.
In front of the beaters and last pair of tension rollers I mount a shaker, shakers or
shaking table or a combination of these.
may
The shaker consists of a polygonal drum, preferably triangular, on some or all
of the faces of which I fix plates or blades extending beyond the angles or
have a circular drum with blades fixed on its circumference at suitable intervals.
I mount the said shaker or shakers so as to run at a high speed in order to shake
the ribbons well as they pass over it or them.
The shaking or travelling table consists of two endless bands passing over pulleys
and I fix between such bands a number of bars or blades, these bands I prefer to
mount so as to run faster than the aforesaid tension rollers.
I may find it desirable to provide a travelling table between the rollers. This may
be found advantageous where very long sticks are to be treated, in order that they
may be clear of one set of rollers before entering the next set.
According to the second part of this invention, for softening, cleaning and
separating the ribbons, I mount in a suitable framing, alternately, any suitable
number of pairs of the before mentioned beaters and tension rollers.
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page_text: Improvements in Machinery for the Treatment of Vegetable Fibres.
I, ROBERT JAMES EKE, of 34A, White Lion Street, Pentonville, in the County
of London, Engineer, do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement:
i
The first part of this invention relates to decorticating machinery and has for
its object to shake any wood off the ribbons as they leave the machine and this I
effect by means of a special shaker and shaking table hereafter described.
According to this part of my said invention, in front of the last pair of tension
rollers I mount a polygonal drum (preferably triangular) on some or all the faces
of which I fix plates or blades extending beyond the angles or I may have a cir-
cular drum with blades fixed on its circumference at suitable intervals.
I mount the said shaker or shakers so as to run at a high speed, so as to shake
the ribbons well as they pass over in leaving the machine.
The shaking or travelling table consists of two endless bands passing over pulleys
and I fix between such bands a number of bars or blades, these bands 'I prefer to
mount so as to run faster than the aforesaid tension rollers.
: F
I may if found desirable provide a travelling table between the rollers. This
may be found desirable when very long sticks are to be treated in order that they
may be clear of one set of rollers before entering the next set.
..
According to the second part of this invention, for softening, cleaning and
separating the ribbons, I mount in a suitable framing, alternately any suitable
number of pairs of beaters and tension rollers.
And in order that my said invention may be better understood I will now proceed
to describe the same with reference to the accompanying drawings in which Fig. 1
shews an elevation of part of a decorticating machine, fitted with my shaker and
shaking table, and Fig. 2 and 3 shew details hereinafter referred to.
The samé letters denote the same parts in all the views.
a a shew the last pair of tension rollers of a decorticating machine, the shaker
is shewn at Fig. 1 in dotted lines. This shaker is shewn in the form of a triangle
(which I prefer), but I do not wish to limit myself to this particular form. It will
be seen on reference to Fig. 2 (which shews a detached view of the shaker drawn
to an enlarged scale in cross section) that the plates c, e¹, e, forming the shaker
or drum extend beyond the angles. The drum may be circular with blades
fixed on its circumference at suitable intervals. d shews one of the bearings of
the drum or shaker b. The shaker is driven at a high speed by means of the chain
or band e.
f shews the shaking travelling table, consisting of two endless bands or
chains 99 passing over sprocket wheels or pulleys hh. i shews bars fixed across
the bands. A part plan of the travelling shaking table f is shewn at Fig. 3. This
travelling shaking table f is geared so as to travel at a greater speed than the ten-
sion rollers a a, and shakes on account of the rod not being rigidly fixed to the
standard of the machine.
When the fibre k leaves the tension rollers a a, it is caught up by the exten-
tions ce¹, c² and owing to these running round at a high speed, they shake and
knock out any wood that may remain in the fibre after leaving the decorticator.
The fibre is then carried away on the travelling table f and any loose pieces of
wood that may fall upon, the, fibre,, pass between the bars i and are not carried
with the fibre.
In the Specification of Letters Patent granted to me and dated, the 11th day of

page_text: September, 1896, No. 20148 I have described a pair of beaters mounted between
two pairs of tension rollers and I have found in practice, that by extending this
arrangement i.e. by adding another pair of beaters and then a pair of tension
rollers and so on making in the aggregate five or more pairs, that such an arrange-
ment of pairs of beaters and tension rollers may be advantageously employed for
softening, cleaning and separating the ribbons.
I do not wish to confine myself to the particular kind of beaters and tension
rollers shewn on the drawing accompanying the Specification of the Letters Patent
No. 20148 aforesaid.
Having now particularly. described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
1. In decorticating machines, the employment of a shaker constructed and
arranged substantially as and for the purpose set forth.
2. In decorticating machines, the employment of a travelling table, constructed
and arranged substantially as described and for the purposes set forth.
3. In machinery for the treatment of vegetable fibres, the employment of five or
more pairs of tension rollers and beater arranged alternately substantially as and
for the purposes set forth.
Dated this First day of November 1897
BROWNE & Co.,
Agents for the Applicant.
9, Warwick Court, Gray's Inn, London, W.C.