GB1593806A – Timber drying apparatus
– Google Patents
GB1593806A – Timber drying apparatus
– Google Patents
Timber drying apparatus
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Info
Publication number
GB1593806A
GB1593806A
GB14187/78A
GB1418778A
GB1593806A
GB 1593806 A
GB1593806 A
GB 1593806A
GB 14187/78 A
GB14187/78 A
GB 14187/78A
GB 1418778 A
GB1418778 A
GB 1418778A
GB 1593806 A
GB1593806 A
GB 1593806A
Authority
GB
United Kingdom
Prior art keywords
hose
hoses
timber
chamber
horizontal
Prior art date
1977-04-12
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB14187/78A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UTEC AB
Original Assignee
UTEC AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1977-04-12
Filing date
1978-04-11
Publication date
1981-07-22
1977-04-12
Priority claimed from SE7704169A
external-priority
patent/SE406641B/en
1978-03-08
Priority claimed from SE7802654A
external-priority
patent/SE420480B/en
1978-04-11
Application filed by UTEC AB
filed
Critical
UTEC AB
1981-07-22
Publication of GB1593806A
publication
Critical
patent/GB1593806A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16J—PISTONS; CYLINDERS; SEALINGS
F16J15/00—Sealings
F16J15/46—Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings
B—PERFORMING OPERATIONS; TRANSPORTING
B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
B65G69/00—Auxiliary measures taken, or devices used, in connection with loading or unloading
B65G69/008—Dock- or bumper-seals
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F26—DRYING
F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
F26B25/008—Seals, locks, e.g. gas barriers or air curtains, for drying enclosures
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F26—DRYING
F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers
Description
PATENT SPECIFICATION
( 11) 1593806 ( 21) Application No 14187/78 ( 22) Filed 11 April 1978 ( 19) ( 31) Convention Application Nos 7704169 ( 32) Filed 12 April 1977 7802654 8 March 1978 in ( 33) Sweden (SE) ( 44) Complete Specification published 22 July 1981 ( 51) INT CL 3 F 26 B 9/06 ( 52) Index at acceptance F 4 G ICI 1 E 2 2 BIA 1 F 2 B IF IG ( 54) TIMBER DRYING APPARATUS ( 71) We, UTEC AB, a Swedish Body Corporate, of Fack, S-931 01 Skelleftea, Sweden, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in
and by the following statement:-
This invention relates to timber drying apparatus.
The invention provides timber drying apparatus comprising a drying chamber in which timber is to be located, the chamber having opposed walls and at each wall at least one substantially vertically extending flexible hose adapted to be inflated and form a seal between the wall and timber in the chamber, the apparatus including means for inflating and deflating the hoses.
A horizontal screen may be provided in the chamber and be adapted to extend across the top of timber in the chamber, and at least one substantially horizontally extending flexible hose may be mounted beneath the screen and adapted to be inflated and form a seal between the screen and timber in the chamber.
The horizontal and vertical hoses may communicate with each other.
A plurality of vertical hoses may be provided at each opposed wall, one hose at one wall being aligned with one hose at the other wall, and a plurality of horizontal hoses may be provided, each pair of aligned vertical hoses being interconnected by one horizontal hose.
Each vertical hose may be attached to the opposed wall and each horizontal hose may be attached to the screen.
Each horizontal hose and at least the uppermost portion of each vertical hose may be vertically movable so that they can be adjusted to the height of timber in the chamber.
The said means for inflating and deflating the hose may include a fan or a pump.
Each hose may be disposed about a perforated pipe for supplying air to the hose.
Embodiments of the invention will now be described by way of example and with reference to the accompanying drawings, in which:
Fig I is a longitudinal section through timber drying apparatus, Fig 2 is a section along the line II-II of Fig 1, and Fig 3 is a similar section as in Fig 2, but through a modified embodiment.
In the drawing, the numeral 1 designates in general a drying chamber containing a drying package assembled of a plurality of timber packages 2, which have been supplied into the chamber substantially perpendicularly to their longitudinal direction through a door opening 4, which in Fig I is closed by means of an inclined liftable door 3 The drying chamber further includes a fan assembly 6 comprising one or more, preferably reversible, fans 5, which assembly is located between the inner roof 7 of the drying chamber and a screen 8 supported immediately above the drying package and extending over the entire width of the drying chamber, and intended to blow drying air into the drying chamber and to cause it to circulate alternatingly in the direction indicated by the arrows 9 and 10 At the wall 11 of the drying chamber located directly opposite the door opening 4 a deflection screen 12 inclined against said wall is provided to facilitate the circulation of the drying air in the chamber and through the drying package Due to its inclination in closed position, the door 3 also acts as a deflection screen when being closed, in the same way as said deflection screen 12.
The timber packages 2 supplied into the drying chamber I have a length smaller than the width of the drying chamber between the sidewalls 13 and, therefore, there always is a free passageway for the drying air between 0 Z Wo p 1,593,806 the sidewalls 13 and the ends of the drying package In order to prevent the drying air from flowing through these passageways, a number of sealing means 14 are provided at the side walls 13 of the drying chamber Said sealing means 14 consist of inflatable hoses of flexible material which are closed at their lower end and via conduits 16 and 17, are at their upper end, connected to a fan or pump 18 so constructed as to be able to pump air into and evacuate air from the hoses 15 on both sides of the drying package.
Each hose 15 is attached to the associated sidewall 13, for example by means of glue and/or other fastening means known per se, and may be dimensioned so that in inflated state it has a width or a diameter, which may amount to the length between the sidewall of the drying chamber and the end of the timber package, so that one hose is capable to cover or fill out the entire intermediate space between a sidewall and one end of one or more timber packages stacked upon one another, even when this package or these packages are so offset laterally that their other end is located not far away from the adjacent sidewall 13 When the timber packages are stacked reasonably straight upon each other, the hoses may be smaller, but in any way in inflated state they should have a diameter exceeding half the difference between the width of the drying chamber and the length of the timber packages.
In the embodiment shown, three hoses 15 interconnected through the conduit 16 are arranged on each side of the drying package.
Of these three hoses on one side two hoses are located one at each end of the drying package and one hose is located at the centre of the drying package The hoses 15 on one side, furthermore, are located directly in front of the hoses on the other side, and each such pair of hoses communicates one hose with the other through a hose 19 attached to the lower surface of the screen 8 and inflatable like the hoses 15 Said hose 19 is capable in inflated state to prevent drying air from passing between the screen 8 and the upper surface of the drying package and, in the same manner as the hoses 15, to guide drying air into the drying package The number of hoses 15 on each side of the drying package need not be three, but can be increased so that there is one hose directly in front of each stack of timber packages 2 The number of hoses, further, depends on the length of the drying package and also of the length or depth of the drying chamber It is not necessary either, that each pair of hoses located directly in front of each other are coupled together one hose to the other through a horizontal hose, but this should be the case at the ends of the drying package In certain cases, for example when there is a very small intermediate space between the upper surface of the drying package and the screen 8, the horizontal hoses 19 can be abolished entirely.
In the modified embodiment shown in Fig.
3 the hoses 15, 19 in each vertical plane are 70 attached by straps 21 about pipes 20 perforated along all their length and with upside down U-shape and anchored at the sidewalss 13 and the screen 8 Said pipes 20 are closed at one lower end and interconnected at their 75 other lower end by means of a pipe (not shown in Fig 3), which extends in parallel with the sidewall and is connected to a fan or pump provided to inflate the hoses or evacuate the air therefrom In certain embodi 80 ments the discharge of the air from the hoses can take place by opening a valve inserted in the conduit In this case, thus, the fan or pump is required only for inflating air into the hoses 85 The hoses 15, 19 upon being inflated expand and are pressed against the drying package, which due to their flexibility form themselves after the drying package, as illustrated particularly in Fig 2, and thereby 90 effectively prevent drying air from passing both between the sidewalls 13 and the ends of the drying package and between the screen 8 and the upper surface of the drying package The drying thereby also is rendered 95 more efficient especially at the end portions of the drying package After the timber has been dried, the air is sucked out of the hoses 15, 19, which thereby contract against the sidewalls 13 and screen 8 respectively and, 100 thus, do not constitute an obstacle to unloading the timber from the drying chamber nor to supplying new timber into the drying chamber, and are also in this way protected against damage It also is possible to evacu 105 ate the air from the hoses 15 by, as mentioned above, opening a valve inserted in the conduit to the hoses Hereby, it is true, a contraction of the hoses against the sidewalls 13 and screen 8 is not obtained, but owing to 110 the fact that the hoses are made of a flexible material, for example of PVC-cloth or some other fabric-like airtight cloth, the hoses collapse after the air had been evacuated and suspend slack along the sidewalls This em 115 bodiment is most suitably used in cases when no hoses are provided beneath the screen 8.
It further is possible to attach the horizontal hoses 19 and the conduits 16 to the lower 120 surface of a frame or the like, which is liftable and lowerable in relation to the screen 8 The sealing means thereby can be adjusted to the height of the drying package.
In this case, of course, the upper portions of 125 the hoses 15 must be loose relative to the respective sidewalls 13 Such an adjustment to the height of the drying package also is possible in the embodiment shown in Fig 3, by making the U-shaped pipes 20 telescopic 130 1,593,806
Claims (9)
WHAT WE CLAIM IS:-
1 Timber drying apparatus comprising a drying chamber in which timber is to be located, the chamber having opposed walls and at each wall at least one substantially vertically extending flexible hose adapted to be inflated and form a seal between the wall and timber in the chamber, the apparatus including means for inflating and deflating the hoses’
2 Apparatus as claimed in claim 1, wherein a horizontal screen is provided in the chamber and is adapted to extend across the top of timber in the chamber, and at least one substantially horizontally extending flexible hose is mounted beneath the screen and adapted to be inflated and form a seal between the screen and timber in the chamber.
3 Apparatus as claimed in claim 2, wherein the horizontal and vertical hoses communicate with each other.
4 Apparatus as claimed in claim 2 or 3, wherein a plurality of vertical hoses are provided at each opposed wall, one hose at one wall being aligned with one hose at the other wall, and a plurality of horizontal hoses are provided, each pair of aligned vertical hoses being interconnected by one horizontal hose.
Apparatus as claimed in claim 2, 3 or 4, wherein each vertical hose is attached to the opposed wall and each horizontal hose is attached to the screen.
6 Apparatus as claimed in claim 2, 3, 4 or 5, wherein each horizontal hose and at least the uppermost portion of each vertical hose is vertically movable so that they can be adjusted to the height of timber in the chamber.
7 Apparatus as claimed in any preceding claims, wherein the said means for inflating and deflating the hoses includes a fan or a pump.
8 Apparatus as claimed in any preceding claim, wherein each hose is disposed about a perforated pipe for supplying air to the hose.
9 Timber drying apparatus substantially as herein described with reference to and as shown in Figures 1 and 2 or with reference to and as shown in Figure 3 of the accompanying drawings.
UTEC AB, Per: BOULT, WADE & TENNANT, 27 Furnival Street, London EC 4 A IPQ.
Chartered Patent Agents.
Printed for Her Majesty’s Stationery Office by Burgess & Son (Abingdon) Ltd -1981 Published at The Patent Office.
Southampton Buildings, London WC 2 A l AY, from which copies may be obtained.
GB14187/78A
1977-04-12
1978-04-11
Timber drying apparatus
Expired
GB1593806A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
SE7704169A
SE406641B
(en)
1977-04-12
1977-04-12
DEVICE FOR CHAMBER DRYER FOR WOOD
SE7802654A
SE420480B
(en)
1978-03-08
1978-03-08
MEASUREMENT FOR SEAL BETWEEN TWO FOR CREATING A PASSAGE THROUGH SHIFTING ONE AND / OR THE OTHER AGAINST FORD UNITS
Publications (1)
Publication Number
Publication Date
GB1593806A
true
GB1593806A
(en)
1981-07-22
Family
ID=26656801
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB14187/78A
Expired
GB1593806A
(en)
1977-04-12
1978-04-11
Timber drying apparatus
Country Status (10)
Country
Link
US
(1)
US4205461A
(en)
JP
(1)
JPS549348A
(en)
CA
(1)
CA1101459A
(en)
CH
(1)
CH636681A5
(en)
DE
(1)
DE2815824A1
(en)
DK
(1)
DK158878A
(en)
FI
(1)
FI63831C
(en)
FR
(1)
FR2387393A1
(en)
GB
(1)
GB1593806A
(en)
NO
(1)
NO781263L
(en)
Families Citing this family (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE3362506D1
(en)
*
1982-04-29
1986-04-17
Barriquand Soc
Apparatus for removing water from yarn packages
DE3600375A1
(en)
*
1986-01-09
1987-07-16
Horst Walter Hartwig
DEVICE FOR SEALING AN ANGLE SPACE
FR2709717B1
(en)
*
1993-08-05
1996-01-19
Omia
Enclosure for vehicle body repair.
SE513231C2
(en)
*
1998-12-07
2000-08-07
Gurlita Maskin Ab
Method and device for wood drying
DE102008024152A1
(en)
*
2008-05-19
2009-11-26
Grunewald, Niclas
Dock shelter, especially for ground-level building openings
DE102019123498A1
(en)
*
2019-09-03
2021-03-04
Guido Schmitz
Drying plant
Family Cites Families (9)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2977106A
(en)
*
1957-05-08
1961-03-28
Selas Corp Of America
Furnace closure
US3018561A
(en)
*
1958-12-15
1962-01-30
Ind Refrigeration Co Inc
High vacuum system
DK93494C
(en)
*
1961-04-18
1962-05-21
Rasmus Poul Nielsen
A method of sealing an annular space between two coaxial surfaces and a sealing ring for performing the method.
DE1224105B
(en)
*
1962-11-02
1966-09-01
Continental Gummi Werke Ag
poetry
FR1393401A
(en)
*
1964-01-31
1965-03-26
Equip Moderne Ind Par Applic D
Seal and structures provided with this seal
US3598416A
(en)
*
1969-10-10
1971-08-10
English Electric Co Ltd
Flexible bellows arrangements
US3949879A
(en)
*
1974-12-11
1976-04-13
Honeywell Inc.
Protective packing product
US4054411A
(en)
*
1976-06-22
1977-10-18
Btu Engineering Corporation
High temperature furnace door seal
US4093068A
(en)
*
1976-09-13
1978-06-06
Fox Valley Marking Systems, Inc.
Packing sheet and packages formed thereby
1978
1978-04-11
CA
CA300,879A
patent/CA1101459A/en
not_active
Expired
1978-04-11
GB
GB14187/78A
patent/GB1593806A/en
not_active
Expired
1978-04-11
NO
NO781263A
patent/NO781263L/en
unknown
1978-04-11
CH
CH387878A
patent/CH636681A5/en
not_active
IP Right Cessation
1978-04-11
DK
DK158878A
patent/DK158878A/en
not_active
IP Right Cessation
1978-04-11
FI
FI781105A
patent/FI63831C/en
not_active
IP Right Cessation
1978-04-12
FR
FR7810816A
patent/FR2387393A1/en
active
Granted
1978-04-12
US
US05/895,764
patent/US4205461A/en
not_active
Expired – Lifetime
1978-04-12
DE
DE19782815824
patent/DE2815824A1/en
active
Granted
1978-04-12
JP
JP4310378A
patent/JPS549348A/en
active
Pending
Also Published As
Publication number
Publication date
FI63831B
(en)
1983-04-29
FI781105A
(en)
1978-10-13
JPS549348A
(en)
1979-01-24
DK158878A
(en)
1978-10-13
NO781263L
(en)
1978-10-13
CH636681A5
(en)
1983-06-15
DE2815824A1
(en)
1978-10-19
FR2387393A1
(en)
1978-11-10
US4205461A
(en)
1980-06-03
DE2815824C2
(en)
1987-07-16
FI63831C
(en)
1983-08-10
CA1101459A
(en)
1981-05-19
FR2387393B3
(en)
1980-12-26
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Legal Events
Date
Code
Title
Description
1981-10-07
PS
Patent sealed [section 19, patents act 1949]
1988-11-30
PCNP
Patent ceased through non-payment of renewal fee
