Improvements in Apparatus for Drying Wool and other Fibrous Material.
Year: 1896

page_text: Date of Application, 15th May, 1896-Accepted, 20th June, 1896
COMPLETE SPECIFICATION.
Improvements in Apparatus for Drying Wool and other Fibrous
Material.
I JOHN FIELDEN 32 Sussex Street Rochdale in the County of Lancaster
Mechanical 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:-
This invention relates to machines or apparatus as used for drying or otherwise
treating wool and other fibrous material such as are described and claimed in the
Specification of Letters Patent granted to me No. 10,632, dated June 1st 1894.
It consists of an improved form of the framework or casing of such apparatus
by means of which the interior is rendered more accessible, while there is less waste
of heat by radiation from the outside of the casing.
In my Specification No. 10,632 of 1894 I described an apparatus with mechanism
by means of which fibrous materials were conveyed through a specially constructed
enclosed house or casing of a rectangular form. At the present time machines of
this description (in which moving brattice or other conveyors are used for the purpose
of drying fibrous materials), are usually constructed with closed sides and with
doors at one or both ends only of the framework or casing.
Now in this invention I construct the framework or casing of such a rectangular
apparatus, with openings at one or both sides in such manner that an operative can
easily and conveniently obtain access to the interior; and this framework can be
lined or coated on either the interior or exterior with asbestos, slag wool, or other
incombustible material which is an imperfect conductor of heat. Or the casing
may be hollow and filled with the same material.
A special feature of my invention consists in forming the doors or panels which
are used to close the openings in the framework, hollow, so that they may contain
asbestos, slag wool, or other incombustible and non-conducting material which is
secured either inside or ontside the metal plate, or between the plates of which
such doors or panels are formed.
In the accompanying drawings:-
Fig. 1 is an elevation of one side of the casing of a drying apparatus according
to my invention.
Fig. 2 is a perspective view of one of the doors or panels which are used to
close the openings in the framework. A designates the casing which has solid
parts a', forming a framework, as well as any convenient number of openings a,
through which access can be obtained to the interior of the apparatus. B indicates
the slide or feeding device by which the material is conveyed to the interior, and
B a conveyor upon which the material passes on leaving the machine.
In Fig. 2 the panel is constructed of a wrought iron or other metallic plate C,
to the inner side of which a thick layer c of asbestos, slag wool, or other similar
incombustible material which is an imperfect conductor of beat is attached by
rivets c' or other convenient fastenings. are knobs by means of which the door
may be lifted and moved.
Two metallic plates C may be employed, one forming the outside and the other
the inside of the door, while the non-conducting material c may be interposed
between the two. Or the door or panel may be in the form of a complete box
which is filled with suitable non-conducting material.

page_text: The openings a and their corresponding doors or panels may be of any con-
venient shape, the framework being made to correspond; and by preference the
aforesaid panels or doors are fixed in their places by latch, hinge, or similar
devices to ensure their easy removal from the strong machine casing.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. An extra thick iron casing for apparatus for drying fibrous material which
has its sides formed of a framework with openings into which are fitted loose doors,
the said doors being lined, covered, or fitted with a layer of incombustible
material which is an imperfect conductor of heat, substantially as shewn and
described.
2. A door or panel to fit an opening in the side of the casing of an apparatus
for drying fibrous materials which consists of a metallic plate lined or coated with
incombustible material which is an imperfect conductor of heat, substantially as
shewn and described.
3. A door or panel to fit an opening in the side of the casing of an apparatus for
drying fibrous materials which consists of metallic plates between which is inserted
a layer of incombustible material which is an imperfect conductor of heat,
-substantially as described.
Dated this 13th day of May 1906
JOHN FIELDEN.