Improvements in the Construction of the Rotary Cages of Centrifugal Drying Machines.
Year: 1893

page_text: Date of Application, 14th Nov., 1893
Complete Specification Left, 13th Aug., 1894-Accepted, 14th Feb., 1895
PROVISIONAL SPECIFICATION.
Improvements in the Construction of the Rotary Cages of
Centrifugal Drying Machines.
We, JOE WILLIAM COLLINS and ARTHUR KAYE, both of the Firm of Hartley
& Co., Marsden, near Huddersfield, in the County of York, Wool Extractors, do
hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the construction of the rotary cages of
centrifugal drying machines commonly called "hydro-extractors" and its object is
to provide a light and durable cage particularly adapted to be enamelled.
For this purpose we form the sides of the cage of light steel or other tubing placed
a suitable distance apart. The ends of the tubes are preferably reduced in diameter
where they are connected to the bottom and the top rim of the cage. These
reduced portions are cut with a screw thread and nuts are screwed thereon after
the ends have been passed through the bottom or top rim of the cage to hold them
in position and the parts together. Instead of reducing the ends of the tubes a bolt
may be passed through each tube to clamp it between the bottom of the cage and
the top rim.
The said tubes are enamelled separately and to form a good and acid-proof joint
and a bed for the enamelled ends of the tubes leaden washers are introduced between
Similar
the ends of the enamelled portions and the bottom and rim of the cage.
washers may be placed under the nuts.
Dated this 13th day of November 1893.
DRACUP & NOWELL,
Bradford, Agents.
Improvements in the Construction of the Rotary Cages of
Centrifugal Drying Machines.
We JOE WILLIAM COLLINS and ARTHUR KAYE both of the Firm of Hartley
& Co. Marsden near Huddersfield in the County of York Wool Extractors 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:-
This invention relates to improvements in the construction of the rotary cages of
hydro-extractors
centrifugal drying machines, commonly called "
"and its object
is to provide a light & durable cage particularly adapted to be enamelled.
For this purpose we form the sides of the cage of light steel or other tubing,
placed a suitable distance apart. The ends of the tubes are preferably reduced in
diameter where they are connected to the bottom and top rim of the cage.
These reduced portions are cut with a screw thread, and nuts are screwed thereon
after the ends have been passed through the bottom and top rim of the cage to
hold them in position and the parts together.

page_text: Instead of reducing the ends of the tubes a bolt may be passed through each
tube to clamp it between the bottom of the cage and the top rim, but as this is a
heavier construction than reducing the ends of the tubes we do not prefer it.
Reference is to be had to the accompanying sheet of drawings forming a part of
this Specification in which similar-letters of reference indicate corresponding parts
in each of the figures.
Figure 1, represents a plan view of a rotary cage with our improvements applied
thereto.
Figure 2, represents a diametrical section of the same.
Figure 3, represents a longitudinal section of one of the tubes and the parts to
which it is attached on a larger scale.
The bottom A, the rim B and the centre C of the cage may be of any ordinary
construction providing that the rim and bottom may be drilled or punched to receive
the reduced ends D of the tubes D. The tubes are enamelled all along between
the shoulders D, D³ formed by the reduced portions, and a washer E is then placed
upon the reduced portions against the said shoulders to form an acid proof joint.
The cage is then built up, the tubes being secured by means of the nuts F screwed
upon the ends of the tubes projecting above the rim and below the bottom. The
ends of the tubes projecting beyond said nuts are preferably riveted over to lock.
the nuts and more or less close the holes in the ends of the tubes.
We find that india rubber washers are not so liable to chip or crack the enamel
as lead washers.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:
1. A cage for a centrifugal drying machine in which the sides of said cage are
formed of a series of vertical tubes, substantially as herein shown and described.
2. A cage for a centrifugal drying machine in which the sides of said cage are
formed of a series of enamelled tubes reduced in diameter at their ends to enable
them to be secured between the rim and the bottom of the cage and having a washer
introduced at each end between the shoulders of each tube and the rim and bottom
of the cage to form an acid proof joint, substantially as herein shown and described.
Dated this 11th day of August 1894.
DRACUP & NOWELL,
Bradford, Agents.