Improvements in Apparatus for Drying Timber, Leather, Oil-cloth, Fibrous and other Substances.
Year: 1887

page_text: Date of Application, 14th Dec., 1887
Complete Specification Left, 11th Sept., 1888
Complete Specification Accepted, 12th Oct., 1888
Improvements in Apparatus for Drying Timber, Leather, Oil-cloth,
Fibrous and other Substances.
I, JOHN HUTCHINSON SHORROCK of the firm of I. and R. Shorrock, Bolton Road
and Lee Foundries, Darwen in the County of Lancaster, Engineers, Millwrights and
Machinists, do hereby declare the nature of my said invention to be as follows:-
This invention has for its object that of producing a perpetual self-acting stove for
drying timber, leather, hides, oil-cloth, linoleum, cotton, wool, jute, and other
substances by means of heated or other air without motive power. The stove can
be constructed in any convenient manner and of suitable materials provided with a
perforated or lattice bottom beneath which suitable air inlet passages are formed. The
timber or other substances intended to be dried are placed over the perforated or
lattice bottom in any convenient manner, the air being drawn from the stove through
apertures in an air pipe or pipes attached to a chimney, the draught of which draws
the atmospheric air through the inlets to the stove and so on continuously day and
night as long as required.
In the case of heated air stoves a suitable chamber, coil, or other equivalents are
disposed below the perforated or lattice bottom; the same being charged with steam
or hot water from a boiler, and so arranged that the steam or hot water can be
returned to the boiler thereby economising the same, as well as that of enabling the
sane to be worked in the night during the absence of the attendant.
In another arrangement the inlets for atmospheric air can be on the upper side of
the stove, the outlet to the chimney being below the perforated or lattice bottom.
Suitable arrangements are provided for carrying away the liquids which may
collect below the perforated or lattice botton during the process of drying.
If the use of a chimney is impossible suitable self-acting ventilators can be
employed for drawing the atmospheric air through the stove day and night without
attendance.

page_text: The advantages of this invention are that timber and other materials mentioned
above can be dried naturally and more effectually than hitherto, thereby dispensing
with the inconveniences of cracking and other detrimental effects arising from the
present systems of stoving.
EDMUND CHADWICK, C.E., Fel. Inst. P.A.,
92, St. George's Road, Bolton,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Drying Timber, Leather, Oil-cloth,
Fibrous and other Substances.
I, JOHN HUTCHINSON SHORROCK of the firm of I. and R. Shorrock, Bolton Road
and Lee Foundries, Darwen in the County of Lancaster, Engineers, Millwrights, and
Machinists, do hereby declare the nature of my said 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 has for its object that of producing a perpetual self-acting stove for
drying timber, leather, hides, oil-cloth, cotton, wool, jute, and other substances by
means of heated or other air without motive power. The stove can be constructed in
any convenient manner and of suitable materials provided with a perforated or lattice
bottom beneath which suitable air inlet passages are formed. The timber or other
substances intended to be dried are placed over the perforated or lattice bottom in any
convenient manner; the air being drawn from the stove through apertures in an air
pipe or pipes attached to a chimney, the draught of which draws the atmospheric air
through the inlets to the stove and so on continuously day and night as long as
required.
In the case of heated air stoves a suitable chamber, coil, or other equivalents are
disposed below the perforated or lattice bottom; the same being charged with steam
or hot water from a boiler, and so arranged that the steam or hot water can be returned
to the boiler thereby economising the same, as well as that of enabling the same to be
worked in the night during the absence of the attendant.
In another arrangement the inlets for atmospheric air can be on the upper side of
the stove the outlet to the chimney being below the perforated or lattice bottom.
Suitable arrangements are provided for carrying away the liquids which may collect
below the perforated or lattice bottom during the process of drying..

page_text: If the use of a chimney is impossible suitable self-acting ventilators can he
employed for drawing the atmospheric air through the stove day and night without.
attendance.
Fig. 1 is a sectional elevation of my improved drying stove through line A¹ B¹ in
Fig. 2, and Fig. 2 is a sectional plan of my improved drying stove showing two
methods of heating the same.
A is the drying stove constructed of any suitable materials and is provided with
the perforated or lattice bottom composed of the bars B supported on the joists C.
D. D are passages or openings for admitting atmospheric air underneath the
perforated or lattice bottom B. E is the outlet pipe with the apertures F for
conveying atmospheric air passing through the stove A to the chimney G. H. H. are
doors to allow of admittance to the stove A for the purpose of filling and emptying
the same.
The timber or other substances intended to be dried is placed on or hung
over the perforated or lattice bottom B in any convenient manner, and atmospheric
air is drawn through the inlet passages or openings D into the stove and through the
apertures F into the pipe E to the chimney G by the draught caused by the latter
continuously day and night as long as required.
The speed of the air passing through the stove can be regulated by means of the
damper I in the pipe E leading to the chimney G.
The arrows indicate the direction of the air current.
If it is desired to heat the atmospheric air in passing through the stove A, below
the perforated or lattice bottom B is placed the cistern J or the coil of pipes K, which
can be charged with steam or hot water from a boiler by the pipe K, and returned to
the boiler by the pipe K', thereby economising the same and at the same time
allowing of the same to be worked day and night during the absence of the attendant
as long as steam or hot water remain in the boiler. The cistern J or coil of pipes K
can be heated by the waste or exhaust steam from a steam engine.
Fig. 3 is an arrangement of my invention wherein the passages or openings D for
admitting atmospheric air are disposed on the upper, end of the stove A; the pipe E
with the apertures F being placed below the perforated or lattice bottom B.
Fig. 4 is a sectional plan of an arrangement wherein the steam pipes K are placed
outside the stove A immediately in front of the air passages or openings D, which is
designed for drying materials that require only slightly heated air and that would be
damaged by heat direct from the cistern J or the coil of pipes K underneath the
perforated or lattice bottom as in Fig. 2.
Fig. 5 is a sectional elevation of my improved drying stove wherein atmospheric
air is drawn through the passages or openings D by means of the archimedian
screw or other ventilators P which I employ in lieu of the chimney G when the
use of the latter is impossible. The steam pipes K are placed immediately in front
of the passages or openings D in the channel Montside, the latter being covered
with the gratings O.
The materials intended to be dried can be laid on the perforated or lattice bottoni B
or hung or supported in any convenient manner above the sanic.
In case liquids are formed during the process of drying they are conducted away
by suitable drains trapped to prevent the heat escaping otherwise than by the
chimney G or the ventilators P.
The advantages of this invention are that timber and other materials before mentioned
can be dried naturally and more effectually than hitherto, thereby dispensing with
the inconveniences of cracking and other detrimental effects arising from the present.
systems of stoving.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed 1 declare that what I
claim is
1. The application of the draught of a chimney or its equivalent for drawing
atmospheric air-heated or otherwise-through a drying stove for the purpose
necified

page_text: 2. The use, construction, and arrangements of apparatus for heating atmospheric
air in its passage through a drying stove, substantially as described and as shown on
the drawings.
3. In a drying stove the use of the pipe E and apertures F for the purpose
specified:
'
4. The respective constructions; combinations, and arrangements of parts forming
my improved drying stoves, substantially as and for the purposes herein described
and shown on the drawings.
EDMUND CHADWICK,
Agent.