Year: 1887

page_text: Date of Application, 13th Sept., 1887
Complete Left, 12th June, 1888
Complete Accepted, 13th July, 1888
I JOHN WHITWORTH LORD of Fairfield Road Bow, in the County of Middlesex,
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in the construction of drying machines for
drying purposes generally.
Within a revolving cage or receiver, preferably octagonal, but which may have any
number of sides, perforated or not, or which may be actually circular if desired, I
place a table having four perforated faces, supporting it upon a central shaft which
may be formed of a single shaft or tube, or of two or more concentric shafts or tubes,
perforated for the passage of steam, superheated steam, or hot air from a fan or any
suitable blowing machine or exhaust; shelves or divisions are fixed longitudinally
within the cage or receiver, such space as may be found most convenient for the
passage of the material under treatment beir g left between the inner ends of these
divisions, and the faces of the table. Openings are provided in the cage or receiver
for the introduction of the material to be dried and doors for the discharge of the
dried material into trucks or carriages brought beneath.
Rotary motion is given to the machine by toothed or worm gearing or in any
convenient manner.
I may provide a steam chest or adopt other suitable means for heating the cage or
receiver from the exterior, and I may enclose the entire machine in a chamber heated
in any convenient way.
The action is as follows:-The material to be dried being introduced into the cage
or receiver and rotary motion being given to the machine, this material will be
directed by the divisions or shelves as they become uppermost on to one of the faces of
the table and will be thrown therefrom against the side of the receiver, to be again

page_text: carried up by the shelves, and so on; the material being thus constantly turned over,
separated, and exposed to the action of the hot steam or air passing through the table
from the central shaft or tube, until it becomes as dry as may be desired, when it may
be withdrawn by stopping the movement and opening one or more of the trap doors.
When the periphery of the receiver is perforated any dried material which may
pass through it during its rotation will fall into trucks or other receptacles placed
beneath.

page_text: Improvements in Machines for Drying Granular, Pulverulent, and
other Materials.
I, JOHN WHITWORTH LORD, of Fairfield Road, Bow, in the County of Middlesex,
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 :-
My invention relates to improvements in the construction of drying machines.for
drying purposes generally.
On the accompanying Sheet of Drawing
Figure 1 is an Elevation, partly in section, of a drying machine embodying by my
improvements.
Figure 2 is an end view thereof.
Figure 3 a vertical section through the centre, and
Figure 4 is a section through the hollow trunnion, showing steam and hot air
inlets.
;
A indicates a revolving drum, cage or receiver, here shown octagonal, but which
may have any number of sides, perforated or not, or be actually circular if desired
B is a box or table having four perforated faces b, but which may have any number of
faces; it is here shown fixed upon the end plate of cage, but it might be carried by a
central shaft which might be solid or formed of two concentric tubes C, D, the outer
tube D being perforated at the part within the table for the passage of hot air from a
fan or any suitable blowing machine or exhaust, the inner tube being for the passage
of steam, which may be used either independently, or in conjunction with the hot air.
This box or table serves to radiate heat to the material under treatment, and also, in
combination with the shelves or divisions E, to constantly turn, separate and expose to
the action of the hot air, or steam, the material under treatment in the drum or cage A.
I may make the box B to act as a steam chest, in which case the faces b will not be
perforated and the steam will be introduced as found most convenient. E are beaters,
shelves or divisions fixed longitudinally within the cage A, such space as may be
found most convenient for the passage of the material under treatment being left
between the inner ends e of these divisions and the faces 6 of the radiating box or
table; any number of shelves may be used. F are charging doors or openings
provided in the cage A for the introduction of the material to be dried and for the
discharge of the dried material into trucks, carriages or other receptacles brought
beneath, there may be any number of these doors. The material may be introduced
through a hopper, or otherwise.
The cage A is supported by the hollow trunnion N in bearings on the frames or
standards G, and receives rotary motion from the main shaft by the gearing H, I, J, K, L,
or by worm, or any convenient manner.

page_text: The action is as follows:-
The material to be dried, whether granular, pulverulent or other, is introduced into
the cage, drum, or receiver A, through the doors F, and the gearing H, I, J, K, L,
rotated by the pulleys M sets the cage A and box or table B revolving; as the cage A
revolves, one or other of the divisions or shelves E coming uppermost and carrying
with it a portion of the material under treatment, drops this material on to one of the
faces b of the table B, and this latter also revolving throws this material therefrom
against or towards the side of the cage, to be again carried up by the shelves, and so
on, until the material having been thus turned over, separated and continuously
exposed to the action of the hot air or steam from the heat radiating box or table B,
is as dry as desired, when it is withdrawn by stopping the movement by means of a
clutch, or fast and loose pulleys, or otherwise, and opening one or more of the
doors F.
If the periphery of the receiver or cage A is perforated, any dried material which
may pass through it during its rotation will fall, or be directed, into trucks or other
receptacles placed beneath.
I may provide a steam chest or adopt other suitable means for heating the cage A
from the exterior: I may even enclose the entire machine in a chamber heated in any
convenient way. In such case I may dispense with the heating of the table B by the
conduits C, D, shown on the drawing.
1 may use Root's blower or any other means for blowing hot air into my
machine.
The periphery of my cage may be made of wirework or of perforated plates of iron
or other metal, or of unperforated metal plates or other material, according to the
nature of the material which it is particularly intended to dry, and the faces 6 of the
table may be of similar material.
The cage A and table B may be made to revolve together or independently of each
other, as may be desired.
I may use any available motive power for driving my machine and any suitable
driving gear.
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 a machine for drying granular, pulverulent and other materials, the heat
radiating box or table B, in combination with the cage or receiver A, having the
shelves E, and operating substantially as described.
2. In a drying machine, the table B in combination with the cage A having the
shelves E, and revolving with or independently thereof, the material under treatment
being heated from the exterior, as set forth.
3. A machine for drying granular, pulverulent and other materials, constructed,
combined and working substantially as hereinbefore described and illustrated on the
accompanying Sheet of Drawing.
Dated this 19th day of Tuna 1020