CH183513A - Process for the production of middle layers for carpentry purposes. - Google Patents

Process for the production of middle layers for carpentry purposes.

Info

Publication number
CH183513A
CH183513A CH183513DA CH183513A CH 183513 A CH183513 A CH 183513A CH 183513D A CH183513D A CH 183513DA CH 183513 A CH183513 A CH 183513A
Authority
CH
Switzerland
Prior art keywords
cut
middle layers
wedge
carpentry
production
Prior art date
Application number
Other languages
German (de)
Inventor
Maag Hans
Original Assignee
Maag Hans
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.)
Filing date
Publication date
Application filed by Maag Hans filed Critical Maag Hans
Publication of CH183513A publication Critical patent/CH183513A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27DWORKING VENEER OR PLYWOOD
    • B27D1/00Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B27D1/06Manufacture of central layers; Form of central layers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B1/00Methods for subdividing trunks or logs essentially involving sawing
    • B27B1/005Methods for subdividing trunks or logs essentially involving sawing including the step of dividing the log into sector-shaped segments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27LREMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L5/00Manufacture of veneer ; Preparatory processing therefor

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)

Description

  

  Verfahren für die Herstellung von Mittellagen für Schreinereizwecke.    Die Erfindung     betrifft    ein Verfahren für  die Herstellung von Mittellagen, wie solche  in der Schreinerei Verwendung finden. Bis  her wurden die Mittellagen in einem um  ständlichen Verfahren aus Ausschussbrettern  fabriziert, nach welchem sie durch die Not  wendigkeit des Verlesens nach der Jahrring  richtung und der dadurch bedingten ver  schiedenen Verarbeitung teuer wurden. Trotz  dem wurde durch die immer noch ungleiche  Richtung der Jahrringe nicht die gewünschte  Qualität herausgebracht. Demgegenüber wird  dadurch, dass bei dem vorliegenden Verfahren  Stämme verarbeitet werden, ein einheitlicher  Arbeitsgang möglich.  



  Durch beiliegende Zeichnung ist die An  wendung des Verfahrens beispielsweise illu  striert.  



  Fig. 1 zeigt einen Stamm, der im Kreuz  schnitt aufgeschnitten wird, das heisst das  erstemal halbiert, und dann beide Teile noch  mals halbiert, und zwar gehen die Schnitte  durch das Mark;       Fig.    2 zeigt ein Viertel. Die Viertel wer-    den noch einmal geteilt, und je nach Be  dürfnis in Sechszehntel geschnitten; es ent  stehen somit keilförmige Teile;       Fig.    3 veranschaulicht, wie die keilförmi  gen Teile mit den Keilkanten abwechselnd  auf der einen und auf der andern Seite zu  einem Block zusammengeleimt werden. Hier  ist es von Nutzen, wenn zu     unterst    mit  einem Stück angefangen wird, das nur halb  so dick ist wie die darauf zu liegen kom  menden. Ebenso soll der Block mit einem  gleichen Stück (ein Sechszehntel) beendet  werden.

   Dadurch wird eine grössere Ausbeute  erreicht, weil die Stirnseiten so     rechtwinklig     zu den     Breitflächen    stehen.  



  Hier ist auch eingezeichnet, wie der Block  zu Brettern geschnitten werden muss, welche  alle liegende Jahrringe haben. Diese Bretter  werden wieder zu einem Block zusammen  geleimt, wie     Fig.    4 zeigt; darin grenzen die  wageechten Linien die aufeinander geleimten  Bretter ab, wie sie sich nach     Fig.    3 ergeben.  Die senkrechten unterbrochenen Linien ver  anschaulichen, wie dieser Block zu den nun      rohen Mittellagen mit stehenden Jahrringen  geschnitten wird.  



  Fig. 5 zeigt die Stirnseite der Mittellagen,  welche jetzt aus Stäbchen bestehen, die alle  stehende Jahrringe haben.  



  Wird der Block nach Fig. 3 in wageechter,  statt wie dort angegeben in senkrechter  Richtung zu Brettern zerschnitten, so ent  stehen auch Mittellagen mit stehenden Jahr  ringen, die aber nicht aus Stäbchen, sondern  aus Brettstreifen bestehen. Sie besitzen da  her weniger Leimfugen. Sie können für ver  schiedene Zwecke verwendet werden, zum  Beispiel zum einseitigen Furnieren und für  billigere Möbel:



  Process for the production of middle layers for carpentry purposes. The invention relates to a method for the production of middle layers such as those used in carpentry. Up until now, the middle layers were made from scrap boards in an elaborate process, after which they were expensive due to the need to read according to the tree ring direction and the various processing involved. In spite of this, due to the still uneven direction of the tree rings, the desired quality was not produced. In contrast, the fact that logs are processed in the present method enables a uniform operation.



  The application of the method is illustrated, for example, by the accompanying drawing.



  Fig. 1 shows a trunk that is cut in the cross cut, that is, the first time it is halved, and then both parts are halved again, namely the cuts go through the pith; Fig. 2 shows a quarter. The quarters are divided again and cut into sixteenths as required; there are thus wedge-shaped parts; Fig. 3 illustrates how the wedge-shaped parts are glued together with the wedge edges alternately on one side and on the other to form a block. Here it is useful if you start at the bottom with a piece that is only half as thick as the one on top. The block should also end with an equal piece (one sixteenth).

   This achieves a greater yield because the end faces are so perpendicular to the broad surfaces.



  Here it is also shown how the block has to be cut into boards, all of which have horizontal annual rings. These boards are again glued together to form a block, as shown in FIG. 4; therein, the true-to-scale lines delimit the boards glued to one another, as shown in FIG. The vertical broken lines illustrate how this block is cut into the now raw middle layers with standing growth rings.



  Fig. 5 shows the front side of the middle layers, which now consist of rods, all of which have standing annual rings.



  If the block according to FIG. 3 is cut into boards in the real direction instead of in the vertical direction as indicated there, then there are also middle layers with standing year rings, which do not consist of chopsticks, but of board strips. You therefore have fewer glue joints. They can be used for various purposes, for example for single-sided veneering and for cheaper furniture:

 

Claims (1)

PATENTANSPRUCH: Verfahren für die Herstellung voll Mittel lagen für Schreinereizwecke, dadurch gekenn- zeichnet, dass ein Stamm in keilförmige Teile geschnitten wird, welche mit den Keilkanten abwechselnd auf der einen und auf der andern Seite wieder zusammengeleimt werden, wo durch ein Block entsteht, der zu Brettern mit stehenden Jahrringen geschnitten wird. UNTERANSPRÜCHE: 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass der aus den keilför migen Teilen gebildete Block zweimal ver leimt und zerschnitten wird, derart, dass die Mittellagen aus Stäbchen. bestehen. 2. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass der aus den keil förmigen Teilen .gebildete Block so zer schnitten wird, dass die Mittellagen aus Brettstreifen bestehen. PATENT CLAIM: Process for the production of full medium layers for carpentry purposes, characterized in that a trunk is cut into wedge-shaped parts, which are glued together with the wedge edges alternately on one side and on the other, creating a block that is cut into boards with standing growth rings. SUBClaims: 1. The method according to claim, characterized in that the block formed from the wedge-shaped parts is glued and cut twice, in such a way that the middle layers of rods. consist. 2. The method according to claim, characterized in that the block formed from the wedge-shaped parts is cut so zer that the middle layers consist of board strips.
CH183513D 1935-05-20 1935-05-20 Process for the production of middle layers for carpentry purposes. CH183513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH183513T 1935-05-20

Publications (1)

Publication Number Publication Date
CH183513A true CH183513A (en) 1936-04-15

Family

ID=4432356

Family Applications (1)

Application Number Title Priority Date Filing Date
CH183513D CH183513A (en) 1935-05-20 1935-05-20 Process for the production of middle layers for carpentry purposes.

Country Status (1)

Country Link
CH (1) CH183513A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2218172A1 (en) * 1973-02-20 1974-09-13 Weyerhaeuser Co
US3989078A (en) * 1976-01-07 1976-11-02 Weyerhaeuser Company Log cutting and rejoining process
WO1983003791A1 (en) 1982-05-04 1983-11-10 Peter Polaczek Method and device for transforming billets into construction wood
FR2536700A1 (en) * 1982-11-29 1984-06-01 Linthout Marcel Van All-wood (grain-to-grain) timber
WO1989004747A1 (en) * 1987-11-27 1989-06-01 Andrew Karl Knorr Method of sawing timber and timber products formed thereby
US5034259A (en) * 1988-06-23 1991-07-23 The Weyerhaeuser Company Process for re-manufacturing wood board and the product produced thereby
WO1997018931A1 (en) * 1995-11-22 1997-05-29 The Australian Radial Timber Conversion Company (Radcon) Radially sawn posts
EP3177781A4 (en) * 2014-08-08 2018-01-17 Stora Enso Oyj A gluelam structural member and a method of producing such a gluelam structural member

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2218172A1 (en) * 1973-02-20 1974-09-13 Weyerhaeuser Co
US3989078A (en) * 1976-01-07 1976-11-02 Weyerhaeuser Company Log cutting and rejoining process
WO1983003791A1 (en) 1982-05-04 1983-11-10 Peter Polaczek Method and device for transforming billets into construction wood
FR2536700A1 (en) * 1982-11-29 1984-06-01 Linthout Marcel Van All-wood (grain-to-grain) timber
WO1989004747A1 (en) * 1987-11-27 1989-06-01 Andrew Karl Knorr Method of sawing timber and timber products formed thereby
US5034259A (en) * 1988-06-23 1991-07-23 The Weyerhaeuser Company Process for re-manufacturing wood board and the product produced thereby
WO1997018931A1 (en) * 1995-11-22 1997-05-29 The Australian Radial Timber Conversion Company (Radcon) Radially sawn posts
EP3177781A4 (en) * 2014-08-08 2018-01-17 Stora Enso Oyj A gluelam structural member and a method of producing such a gluelam structural member

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