US2303916A - Process for producing compressed laminated wood - Google Patents

Process for producing compressed laminated wood Download PDF

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Publication number
US2303916A
US2303916A US327816A US32781640A US2303916A US 2303916 A US2303916 A US 2303916A US 327816 A US327816 A US 327816A US 32781640 A US32781640 A US 32781640A US 2303916 A US2303916 A US 2303916A
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United States
Prior art keywords
layers
wood
stack
laminated wood
central zone
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Expired - Lifetime
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US327816A
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English (en)
Inventor
Samsonow Vassily De
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Individual
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Individual
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Publication of US2303916A publication Critical patent/US2303916A/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J5/00—Shuttles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/02—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by compressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/30—Manufacture or reconditioning of specific semi-finished or finished articles of bobbins

Definitions

  • Patented Dec. 1 1942 PROCESS FOR PRODUCING COMPRESSED LARHNATED WOOD Vassily de Samsonow, Brussels, Belgium Application April 4, 1940, Serial No. 327,816 In Belgium April 17, 1939 1 Claim.
  • This invention relates to a process for producing compressed laminated wood.
  • the principal object of the invention is to provide a process of manufacture of synthetic wood made up of layers of wood veneer, with the density of the central layers less than that of the outer layers.
  • Another object of the invention is to provide a process for manufacture of synthetic wood made up of laminations of wood whose outside layers are more compressed than the inner layers.
  • Fig.- 1 shows a side elevation of a stack of sheets of wood veneer of my invention before pressure has been applied thereto;
  • Fig. 2 shows a side elevation of the stack in Fig. 1, while pressure is being applied
  • Fig. 3 is a plan view of a weaving shuttle made of synthetic wood manufactured in accordance with the invention.
  • weaving shuttles require hard and dense surfaces to resist wear and are usually covered at the ends by metal tips secured to the main body of the shuttles by screws or bolts. It has been found that weaving shuttles made of a uniformly hard and dense wood have been subject to cracking andsplitting at the ends where the metal tips are secured.
  • the present invention has solved this problem by providing a process by which synthetic wood is made with theouter layers hard and dense and with a central zone of such relatively less density as to permit of the securing of metal tips without the danger of splitting the shuttle.
  • an incompressible block so placed as to take up the pressure exerted on the layers of the central zone after they have been compressed a predetermined amount and thereby permitting the final or full pressure on the stack of layers to be exerted principally on the outer layers of the stack;
  • This distribution of pressure throughout the vertical dimension of the stack results in the layers in the central zone being of lesser density than that of the outer layers.
  • l represents the base of the press upon which are stacked a series of layers of sheets of wood veneer 2, 3 and 4. 5 represents the upper plate of the press.
  • the layers 3 of the central zone of the stack are cut shorter thantho'se of the layers 2 and 4, thus providing a space for incompressible blocks 6-45 to be placed. These blocks are of such thickness as to permit the layers 3 to be compressed to a predetermined amount when the blocks take up against the surfaces of the layers 2 and 4, thus preventing any considerable further compression of the central zone layers.
  • the layers in the central zone 3 may, if desired, be of slightly greater thickness than the layers 2 and 4. With this arrangement, the outer layers 2 and I, after compression, would have a higher density than if the layers were of uniform thickness throughout the vertical diameter of the stack.
  • the process of making synthetic wood of my invention consists of selecting sheets of wood veneer of 'the desired thickness, with the sheets "r for the central zone shorter than those of the outer layers.
  • the sheets are then coatedwith a binding agent settable under high pressure and temperature.
  • the sheets are then formed into a stack and incompressible blocks placed at the e'nds'of the layers of the central zone.
  • the stack is then compressed at a high temperature and held under cempression until the binding agent has set by which the pores and cell cavities of the wood are completely closed and sealed and a board of synthetic wood is formed.
  • the binding agent After the binding agent has set the synthetic wood is removed from the press, the blocks 6 are removed and the ends of the stack are trimmed as at I8 to remove the parts of the stack that were immediately adjacent the two compression blocks. The stack then may be cut to the length of a desired article, as at I 9.
  • I represents the body of a weaving shuttle-whose sections B and C are those of layers 2 and 4 respectively, with a central section A corresponding to the central zone 3 as shown in Figs. land 2.
  • a metal-cap It At each end or the body 1 or the shuttle is secured a metal-cap It with a threaded through a hole drilled in the ends of the body 1, after the body has been planed down to the desired shape.
  • the cap III is secured by a nut l2 engaging the extension II.
  • a hole ii in the body 1 is provided for the insertion of the nut 12 for alignment with the extension I I.
  • the hollowed out central portion H is provided for the mounting of the thread being woven.
  • the thread is mounted on spindle l5 and leaves the spindle l5 and the body I through passageway l6 and hole l'l.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
US327816A 1939-04-17 1940-04-04 Process for producing compressed laminated wood Expired - Lifetime US2303916A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE433856T 1939-04-17

Publications (1)

Publication Number Publication Date
US2303916A true US2303916A (en) 1942-12-01

Family

ID=3869553

Family Applications (1)

Application Number Title Priority Date Filing Date
US327816A Expired - Lifetime US2303916A (en) 1939-04-17 1940-04-04 Process for producing compressed laminated wood

Country Status (5)

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US (1) US2303916A (US07816562-20101019-C00012.png)
BE (1) BE433856A (US07816562-20101019-C00012.png)
CH (1) CH238883A (US07816562-20101019-C00012.png)
DE (1) DE898951C (US07816562-20101019-C00012.png)
GB (1) GB541904A (US07816562-20101019-C00012.png)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2586308A (en) * 1948-06-02 1952-02-19 Curtis John Ross Method of making shuttle blocks
US2704533A (en) * 1955-03-22 Writing instruments
US3523049A (en) * 1967-12-12 1970-08-04 Koppers Co Inc Process for high-frequency bonding of wood sections having impregnated preservative
US20060048852A1 (en) * 2002-12-20 2006-03-09 Mcintosh Trevor I Compressed wood product and manufacture

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1136649B (de) * 1959-04-29 1962-09-13 Holzveredelung Alfons Deutsche Verfahren zur Herstellung von Webschuetzen aus unterschiedlichen Werkstoffen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704533A (en) * 1955-03-22 Writing instruments
US2586308A (en) * 1948-06-02 1952-02-19 Curtis John Ross Method of making shuttle blocks
US3523049A (en) * 1967-12-12 1970-08-04 Koppers Co Inc Process for high-frequency bonding of wood sections having impregnated preservative
US20060048852A1 (en) * 2002-12-20 2006-03-09 Mcintosh Trevor I Compressed wood product and manufacture
US7131471B2 (en) * 2002-12-20 2006-11-07 Mcintosh Trevor Ian Compressed wood product and manufacture

Also Published As

Publication number Publication date
DE898951C (de) 1953-12-07
BE433856A (US07816562-20101019-C00012.png) 1939-05-31
CH238883A (fr) 1945-08-31
GB541904A (en) 1941-12-17

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