IL22101A - Production of veneer - Google Patents
Production of veneerInfo
- Publication number
- IL22101A IL22101A IL22101A IL2210164A IL22101A IL 22101 A IL22101 A IL 22101A IL 22101 A IL22101 A IL 22101A IL 2210164 A IL2210164 A IL 2210164A IL 22101 A IL22101 A IL 22101A
- Authority
- IL
- Israel
- Prior art keywords
- veneer
- dryer
- storage trays
- peeling
- line
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 24
- 238000003860 storage Methods 0.000 claims description 59
- 208000019300 CLIPPERS Diseases 0.000 claims description 28
- 208000021930 chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids Diseases 0.000 claims description 28
- 238000001035 drying Methods 0.000 claims description 22
- 239000002699 waste material Substances 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 3
- 230000000063 preceeding effect Effects 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 6
- 239000002023 wood Substances 0.000 description 6
- 239000011122 softwood Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 239000011121 hardwood Substances 0.000 description 3
- 239000011120 plywood Substances 0.000 description 3
- 230000003466 anti-cipated effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
- B27L5/00—Manufacture of veneer ; Preparatory processing therefor
- B27L5/002—Wood or veneer transporting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
- F26B13/101—Supporting materials without tension, e.g. on or between foraminous belts
-
- 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
- F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
- F26B2210/14—Veneer, i.e. wood in thin sheets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
- F26B2210/16—Wood, e.g. lumber, timber
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Textile Engineering (AREA)
- Veneer Processing And Manufacture Of Plywood (AREA)
- Drying Of Solid Materials (AREA)
- Manufacture Of Wood Veneers (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
This invention relates to the production of wood veneers and in particular to an improved process and apparatus for in-line production of wood veneers.
In conventional prior art systems of soft wood
plywood production, veneers are clipped wider than the finished sheet in order to account for an indefinite amount of shrinkage and sorted before they are dried. Sorting is done visually and is determined by the amount and size of knotholes, splits and rough surface and also by rough estimates of moisture content. Such moisture content is difficult to estimate while the veneer is still wet and before it passes through a dryer. Effective instruments for this purpose are not presently available. Thus, several veneer sheets are clipped improperly since they contain both relatively wet and relatively dry portions in one sheet. When such a sheet passes through the dryer at a sufficient speed to dry out the wet portion of the sheet, the dry portion becomes overdry and the resulting damage degrades the veneer and results in a lower commercial grade veneer.
The sheets of veneer are passed through the dryer in the prior art systems with the long axis of the veneer grain lengthwise to its path through the dryer. This is
termed lengthwise drying and includes the drying of wood
veneers in which the veneer passes through the dryer with its grain lengthwise of its direction of travel. This is in
distinction from crosswise drying which includes the drying of wood veneers in which the veneer passes through the dryer with its grain crosswise of its direction of travel.
In the production of hardwood veneers, logs are often peeled and reeled. These reels are then transferred to the dryer and unrolled through the dryer to be clipped after they
passed through the dryer, all the shrinkage has occurred and the clipping of such dried hardwood veneers is to exact size. In both softwood and hardwood veneer production methods there is an intermediate handling step between the peeling of the log and the drying of the veneer.
Thus it is the object of «- invention to peel veneers from the logs and convey them without human handling or stacking until they have passed through a series of
conveyors and emerge from the system as dry, clipped veneer.
Another object is to produce softwood veneers which are clipped and graded after passing through a dryer without the loss of veneer due to oversized clipping allowing for an indeterminate indefinite amount of shrinkage.
Another object is to provide a veneer production process wherein the veneer which has passed through the dryer, is accurately sensed for moisture content such that veneer which requires additional drying is accurately detected and can be separated from veneer which has had sufficient drying.
Another object is to provide a veneer production apparatus which includes a means for peeling a log and storing the peeled veneer in sufficient amounts to feed a dryer for crosswise drying in a continuous manner wherein there is a minimum of gap through the dryer between portions of the peeled veneer.
Another object is to provide a veneer process which saves valuable grades of softwood veneer from overdrying by delaying the grading process until after a drying step.
Other objects and advantages of this invention will be apparent upon consideration of the following detailed description of a preferred embodiment thereof in conjunction
use of other features. All such modifications are intended to be included within the scope of the appended claims.
In the drawings:
FIGURES 1A to 1C are side elevation views of the general arrangement of an in-line veneer production apparatus;
FIGURE 2 is a slightly enlarged view of the center portion of the in-line veneer apparatus.
Referring now to FIGURE 1 and following it from right to left and from top to bottom, the in-line veneer production apparatus 1 is shown which comprises a peeling station 3, ribbon storage trays 20, waste clipper section 30, dryer storage trays 40, dryer feeder 50, dryer 60, and
grading-clipping section 70. In detail, the peeling station 3 provides the means for bringing logs 4 by feed conveyor 5 and log handling equipment 7 to the lathe 8. Logs 4 are positioned vertically in line with axis of the chucks 9 by charger calipers 10 or other suitable positioning means.
Logs 4 are then grasped by charger arms (not shown) which carry the log 4 forward to align the log axis with the chuck axis. Lathe 8 supports the logs 4 by means of chucks 9 which grasp the ends of the log when it is centered in the lathe 8. Once placed in the lathe 8 logs 4 are rotated at a varying speed so that as the peeling knife 11 is placed against the surface of the log 4, the cut material which will be taken off by the peeling knife 11 in the form of veneer, often referred to as the ribbon, can leave the lathe area at a constant speed. In this way, as the log 4 is reduced in diameter as it rotates past peeling knife 11, the speed of its rotation is increased to maintain the same veneer speed.
During the first phase of cutting when the log rf i
as veneer. Such rough-cut waste 13 is conveyed by means of conveyor gate 14 to a waste chute 15 where it is further conveyed by means of chipper conveyor 16 to be made into wood chips. Once the log 4 is cut into its smallest practical diameter for veneer, the rotation is stopped and the remaining portion of the log, referred to as the core, is released from the grasp of the lathe chucks 9, drops into a core discharge conveyor (not shown) to be further processed.
The desired product of the peeling process is the veneer 18 which is conveyed over conveyor gate 14 to tipples 1 which directs the ribbon of veneer 18 into the ribbon storage trays 20. The ribbon storage trays consist of an upper and lower section 21, 22
section, which can convey the ribbon of veneer 18 from the peeling station 3 such that as the first level of the upper section 21 becomes full from end to end, the tipples 19 drop down to a lower level until that level of the conveyor belts also becomes full from end to end and this process continues from the upper section 21 to the lower section 22. The conveyor belts at each of these levels travel until that length of conveyor is completely filled from end to end with a ribbon of veneer or until the storage tray level is emptied into the next station in the in-line veneer apparatus. The storage trays 20 provide a means for carrying the ribbon of veneer 18 as it is cut from the logs 4 and to have it in an abundant supply ready for the next step in the processing of the veneer, yet not requiring any handling equipment, such as fork-lift trucks or bins or other means for carrying the ribbon from one part of a veneering plant to another.
As required the veneer 18 is discharged from the
operators inspect the ribbon 18 as it is conveyed from the storage trays 20 and use the clippers, the upper clipper 31 and the lower clipper 32, depending on the path of the veneer, to cut away large unusable sections of the peeled veneer which are not worth passing through the drying process. The usable veneer is conveyed from the clippers 31, 32 by an overhead vacuum conveyor. The clipped unusable veneer is separated from the vacuum conveyor by a scraping or other suitable means dropping it to the waste conveyor 35 which carries it to a chipper feed conveyor 16. With the arrangement as shown, it is
possible to be discharging from the ribbon storage trays 20 from the upper section 21 through ribbon storage discharge conveyor 24 to the upper waste clipper 31 at the same time as discharging from the ribbon storage trays lower section 22 through ribbon storage discharge conveyor 24 to the lower waste clipper 32. For the most part it is anticipated that the waste clippers will not be cutting the veneer while it is in the ribbon form and it will merely pass from the ribbon storage trays 20 on to the dryer storage trays 40 and will only need to be clipped to cut away the obviously unusable portions of the peeled material so that they will not be
introduced into the dryer and take up valuable dryer space.
The dryer storage trays 40 are similar in construction to the ribbon storage trays 20 and comprise an upper section 41 and a lower section 42, each section consisting of four levels of conveyor belts, which are fed by means of the waste
clipper upper discharge conveyor 38 and the waste clipper lower discharge conveyor 39 from the waste clipper section 30. This second set of storage trays is provided so that an
abundant source of peeled material can be stored prior to
carrying the ribbon' from the waste clipper section 30 to the dryer section 60.
From the dryer storage trays 40 the ribbon veneer
18 is fed by means of dryer storage upper discharge conveyor 45 and dryer storage lower discharge conveyor 46 to dryer feed conveyor 50, best seen in FIGURE 2. The upper dryer feeder conveyor 51 receives the ribbon from the dryer storage upper discharge conveyor 45 and conveys it to the. upper dryer
conveyor run 66. The lower dryer feeder conveyor 52 receives the ribbon of veneer 18 from the dryer storage lower discharge conveyor 46 and conveys it to the lower dryer conveyor run 68.
Since it is anticipated that some material which passes through the dryer 60 will not be sufficiently dry in one pass to be used as plywood veneer and must be recycled through the dryer 60 to reach the desired moisture content;
there is provided a means for reintroducing such semidry
veneer into the dryer 60. For convenience there is provided a lower redry feeder 37 which introduces the semidry veneer to the waste clipper lower discharge conveyor 39 so that it will pass through the lower section of the dryer storage trays 42.
The semidry veneer will then pass through the lower dryer
feed conveyor 52 onto the dryer 60. A second redry feeder, the upper redry feeder 54, is located at the upper dryer
feed conveyor 51 and provides a means for introducing another quantity of semidry veneer to the dryer.
The dryer feeder 50 is operated so that there is a constant unbroken line of veneer material supplied to the
dryer 60 so that none of the dryer volume is wasted by gaps in the material which is to pass through it. This is accomplished by feeding the dryer 60 from the dryer storage trays 40 in
there are several layers of storage in the dryer storage trays 40 in relation to the two layers of dryer conveyor line, it is possible to keep the dryer 60 completely filled at all times. It is also noteworthy that since the veneer is introduced into the dryer 60 with its grain crosswise to its direction of travel through the dryer, there are no gaps which occur in the "lengthwise drying" known in the prior art wherein the wood veneers pass through the dryer with their grain lengthwise to the direction of travel.
The dryer 60 consists of a long, low, self-enclosed dryer housing 61 which contains conveyors running from one end to the other which carry the peeled veneer through the dryer heating sections 62 to the dryer cooling section 63.
Extending from above the dryer housing 61 are dryer exhaust stacks 65 for carrying away the excess moisture from the dryer housing. The conveyors for the veneer consist of an upper dryer conveyor 66 and a lower dryer conveyor 68. The lower dryer conveyor 68 is fed veneer 18 from the lower dryer feed conveyor 52 and the upper dryer conveyor 66 is fed
veneer 18 from the upper dryer feed conveyor 51. The dryer 60 has an air handling system for directing heated air onto the surfaces of the veneer 18 and thus dries the veneer as it transits the dryer. At the end of the dryer 60 the cooling section 63 directs cool air onto the surfaces of the veneer 18 in order to cool the surfaces of the veneer for later handling.
From the cooling section 63 the veneer 18 passes to the grading-clipping section 70 with the discharge from the upper dryer conveyor 66 being conveyed to the upper moisture meter and marker 71 which automatically senses the moisture content of the veneer 18 and if it exceeds a predetermined
which is discharged from the lower dryer conveyor 68 is conveyed to the lower moisture meter and marker 72. Once the moisture content has been determined a grading-clipper operator looks over the veneer to give it an over-all grade. Once this has been determined, the upper and lower grading clippers 75 and 77 respectively are actuated to cut the ribbon of veneer 18 into the exact sizes needed according to the grade given by the grading-clipper operator. If the edge of the veneer is marked indicating that the moisture content is excessive, the grading-clipper operator may cut the ribbon as close as possible to the beginning of the marked area and in this way salvage as much dry veneer as possible. Since the wetter sections which must be redried may continue to shrink as they pass again through the dryer, the grading-clipper operator has a delay switch which adds a percentage to the standard size to allow for shrinkage. From the grading station 70 the veneer which has been cut to size by the upper or lower grading clippers 75,77, is conveyed to sorting table 79 and placed in sorted stacks „for further processing.
OPERATION
The key to efficient utilization of the in-line veneer production apparatus herein disclosed is in the correct balance of operating speeds and capacities of the various subcomponents with the optimum reached when the dryer is continuously filled with veneer ribbons placed edge to edge. For this reason the storage trays are capable of variable speeds and can be loaded at one level and unloaded at another level at the same time, to accomplish the desired result of keeping the dryer full.
For example, the first storage trays 20 may be
may stop entirely during the loading of a new log 4 onto the lathe 8, then loading speed may increase after the rough-cut waste 13 has been removed from the log. At the same time another level of the upper section 21 and one level conveyor of the lower section 22 of the storage trays 20 may be offloading through the waste clipper section 30 at up to 300 feet per minute which may slow down as the waste clipper operator clips away unusable sections of peeled veneer. Thus it follows that as the veneer passes through the waste clipper section 30 from the storage trays 20 it can feed the upper or lower sections 41, 42 of the dryer storage trays 40 at a speed as high as 300 feet per minute. At the same time the other conveyor levels of the dryer storage trays 40 may be feeding veneer to the dryer feed conveyors 50 so that the dryer can be continuously operated at drying speed.
Thus, the time lag occurring during the loading of the lathe and the clipping away of waste material does not affect the continuous full operation of the dryer. With this in-line mill in operation, the usual handling of veneers after they are peeled from the lathe is completely eliminated, therefore resulting in a considerable saving of time, personnel and money.
With this equipment it is possible to use two
methods of drying. The first method of drying is to pass all veneers 18, from one log whether from the outer portion, i.e., the sap portion of the log, or from the inner portion, i.e., the heart portion of the log, through whichever line of the dryer is convenient. That portion of the veneer which is not completely dry as it passes through the moisture meters 71, 72 is indicated before final clipping. The grading-clipper operator may then clip with respect to moisture content as
redry feeder 37 and the upper redry feeder 54 or through another dryer.
The second alternate method of operation would pass all of the veneers from the sap portion of one log to one-half of the dryer storage trays 40, thence into one line of the dryer for drying at one rate. The balance of the veneer would be sent to the other half of the dryer storage trays and to the other line of the dryer for drying at another rate. In either case, the veneers are clipped after the majority of the shrinkage has taken place.
SUMMARY
In summary, the process includes the following basic steps :
The logs 4 are first hauled into the peeling station ,3 and peeled by a lathe 8, the resulting veneers 18 are fed into upper and lower sections 21 and 22 of ribbon storage trays 20, the veneers 18 pass from the storage trays 20 to a waste clipper section 30 that eliminates unusable veneer and from there the veneers 18 are reassembled in dryer storage 1 trays 40. From the dryer storage trays 40 the veneers 18 are fed directly into a conveyor-type dryer 60 where it is dried and conveyed through moisture meters 71, 72 and through grading clippers 75, 77 where the veneers 18 are clipped according to their moisture content and veneer grade. The veneers are then sorted at sorting table 79 and those which are sufficiently dry are used to make plywood or other lumber products and those which are too set for immediate use are recirculated through the redry conveyors 37, 54, or to another dryer.
Claims (12)
1. An in-line veneer production process
comprising the following steps: (a) peeling logs
into veneer, (b) conveying said veneer directly
to storage trays which may include a periodically operated waste clipper seetion positioned intermediate the ends of said trays, (c) conveying said veneer directly from said storage trays into a
veneer dryer, and (d) drying said veneer in said
dryer.
2. An in-line veneer production process comprising the following steps: (a) peeling a log
into seneer at a peeling station, (b) conveying
said veneer directly from said peeling station to a first set of storage trays, (c) conveying said veneer from said first trays to a waste removal station,
(d) removing unusable sections from said veneer at said waste removal station,' (e) conveying said veneer from said waste removal station to a second set of storage trays, (f) conveying said veneer from said second trays into a veneer dryer, and (g) drying said veneer
in said dryer.
3· An £n-lSne veneer production process as claimed in Claim 1 or Claim 2 and comprising the following steps: (h) conveying said veneer from said dryer to a moisture meter, (i) sensing the moisture content
from said moisture meter to a clipper station, and ( Is.) clipping said veneer into veneer sheets according to grade and moisture content*
4· An in-line veneer production process as claimed in claim 3 wherein: the clipping step (k) is to exact size for those sheets of veneer which have moisture content below a predetermined range as indicated by the marking which was performed in step (i).
5· An in-line veneer production process as claimed in claim 3 or claim 4 and including the step of (1) sorting said graded sheets by grade and moisture content.
6» An in-line veneer production process as claimed in claim 5 and including the step: (m) recycling said sheets in which moisture content is in excess of a predetermined range, through said dryer*
7· An in-line veneer production process as claimed in any one of the proceeding claims wherein: said dryer has at least two levels of conveyors transiting its length, the veneer peeled from the sap portion of the log is conveyed to one set of said storage trays to supply one level of said dryer and the veneer peeled from the heart portion of the logs is conveyed to a second set of said storage trays to supply a second level of said dryer.
8. An in-line veneer production process as claimed in claim 7 wherein: said one level of said dryer operates at a lower speed than another level.
9. An in-line veneer production process as claimed in any one of the preceeding claims wherein: all of these steps are performed at the same time on differen ' arts of said veneer.
veneer*
11. An In-line veneer production process as claimed in any one of the proceeding claims wherein: said veneer is conveyed through said dryer with the grain of said
veneer crosswise to its direction of travel.
12. An in-line veneer production apparatus for use in carrying out the process claimed in claim 1 comprising in combination as peeling means for peeling logs into veneer, a set of storage trays which receive said veneer from said peeling means, a veneer dryer, and said storage trays have sufficient number of storage levels to assemble a supply of said veneer and to feed said veneer into said dryer in a substantially continuous supply.
13· An in-line veneer production apparatus- as claimed in claim 12 comprising: said peelin means for peeling logs into veneer, said veneer drying means including at least one layer of dryer conveyors transitting its length which carry peeled veneer through said drying means, said first and second sets of storage trays positioned between said
drying means and said peeling means installed in line in the direction of travel of said veneer, including at least two layers of said second set of storage trays for each layer of dryer conveyors, means fo conveying said veneer alon the length of each said tray, a conveying means for feeding said first set of storage trays having one and adjacent said peeling means for receiving said peeled veneer and including means to position the other end at each level of storage trays for feeding said frst set of storage trays with said peeled veneer, and a further conveyor means for discharging said second set of storage trays haying one end adjacent
each layer of said dryer conveyors and including means
to position the other end at each level of said storage trays of said second set of storage trays provided for
feeding the layer of dryer conveyor adjacent said one
end.
14· An in-line veneer production apparatus for
carrying out the process claimed in claim 1 comprising
in combination: a peeling means for peeling a log into
veneer, a first set of storage trays for receiving said peeled veneer from said peeling means, a clipping means for clipping unusable sections of veneer, a second set of storage trays which receives said veneer from said first set of storage trays after it has passed between said clipper means, and a drying means which receives continuous supply of said veneer from said second storage trays.
15· An apparatus as claimed in any one of claims 12 - 14 wherein: there are four storage tray levels provided for each layer of dryer conveyors*
Dated this 17th Day of September, 1964.
For the Applicants,
ARTNERS
IS/DL
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US315248A US3280866A (en) | 1963-10-10 | 1963-10-10 | In-line veneer production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IL22101A true IL22101A (en) | 1968-04-25 |
Family
ID=23223538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL22101A IL22101A (en) | 1963-10-10 | 1964-09-18 | Production of veneer |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3280866A (en) |
| BE (1) | BE654227A (en) |
| DE (1) | DE1453333A1 (en) |
| DK (2) | DK107705C (en) |
| GB (1) | GB1079049A (en) |
| IL (1) | IL22101A (en) |
| SE (1) | SE314185B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447579A (en) * | 1967-03-27 | 1969-06-03 | Weyerhaeuser Co | Reverse pass in-line veneer production system |
| FR2206160B1 (en) * | 1972-11-11 | 1977-09-09 | Fleck Soehne Gmbh C | |
| US5385185A (en) * | 1993-08-30 | 1995-01-31 | Calvert Manufacturing, Inc. | Round up control system for veneer lathe |
| GB0712286D0 (en) * | 2007-06-26 | 2007-08-01 | Biojoule Ltd | Drying particulate biomass |
| US8813947B1 (en) | 2011-08-31 | 2014-08-26 | Ventek, Inc. | Wood veneer diverter and processing system |
| CN107238266A (en) * | 2017-07-14 | 2017-10-10 | 苏州市中翼玛机械有限公司 | A kind of S type veneer drying machine with drying with Temperature and Humidity Control function |
| CN111687044B (en) * | 2020-06-20 | 2022-11-22 | 塔江建设有限公司 | Gravel and sand centrifugation screening equipment for building engineering |
| CN114739141B (en) * | 2022-05-10 | 2022-11-25 | 江苏一澜智能科技有限公司 | Automatic drying device of chemical fiber silk |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US647625A (en) * | 1899-07-27 | 1900-04-17 | David Gilmour | Lumber. |
| US1767539A (en) * | 1926-11-30 | 1930-06-24 | Masonite Corp | Process of making composition boards and the like and apparatus therefor |
| US1869210A (en) * | 1929-02-16 | 1932-07-26 | Coe Mfg Co | Automatic unloader for driers |
| US1903102A (en) * | 1930-10-31 | 1933-03-28 | Daniel Manson Sutherland Jr | Fiber board manufacture and apparatus therefor |
| DE1039261B (en) * | 1952-05-19 | 1958-09-18 | Paul Lippke Mess Und Regelgera | Moisture meter for moving webs |
| US2844174A (en) * | 1954-07-07 | 1958-07-22 | Chicago Mill & Lumber Co | Apparatus for making paper-covered wood veneer |
| FI32503A (en) * | 1958-12-30 | 1962-04-16 | Kaukas Ab Oy | An apparatus for transferring wood veneer from veneer lathes for further processing |
| USRE25686E (en) * | 1959-03-02 | 1964-11-17 | Mark sensing lumber defect cutter | |
| US3199555A (en) * | 1963-03-06 | 1965-08-10 | Hildebrand Robert | Apparatus for producing and drying veneers |
-
1963
- 1963-10-10 US US315248A patent/US3280866A/en not_active Expired - Lifetime
-
1964
- 1964-09-18 IL IL22101A patent/IL22101A/en unknown
- 1964-09-30 DE DE19641453333 patent/DE1453333A1/en active Pending
- 1964-10-08 SE SE12114/64A patent/SE314185B/xx unknown
- 1964-10-08 GB GB41081/64A patent/GB1079049A/en not_active Expired
- 1964-10-09 BE BE654227D patent/BE654227A/xx unknown
- 1964-10-10 DK DK501664AA patent/DK107705C/en active
-
1966
- 1966-09-16 DK DK481266AA patent/DK113175B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE654227A (en) | 1965-04-09 |
| DE1453333A1 (en) | 1969-08-21 |
| GB1079049A (en) | 1967-08-09 |
| DK113175B (en) | 1969-02-24 |
| US3280866A (en) | 1966-10-25 |
| SE314185B (en) | 1969-09-01 |
| DK107705C (en) | 1967-06-26 |
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