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Publication numberUS839680 A
Publication typeGrant
Publication dateDec 25, 1906
Filing dateFeb 17, 1906
Priority dateFeb 17, 1906
Publication numberUS 839680 A, US 839680A, US-A-839680, US839680 A, US839680A
InventorsFrank Voigt
Original AssigneeFrank Voigt
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Process of changing wood.
US 839680 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

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Application filed February l To all whom, t vncty concern:

Be it known that l, FRANK Voter, a citizen of the United States, residing at Grand Junction, in the county of Mesa and State of Colorado, have invented a new and useful Process of Changing ood, of which the following is a specification.

This invention relates to a process for changing, shaping, or' forming .the natural grain of the wood into an artiiical grain, whereby a wood having a straight grain is changed into a wood having a curved or wavy grain, the said wood thereby resembling when brought to a smooth surface and polished a wood having a natural curly grain.

he process consists of submitting the wood to considerable pressure and in contacting with an irregular pressing-surface, thereby bending or corrugating or otherwise twisting the grain from a natural to an artiiicial direction.

ln order to more clearly describe the process, l have shown mechanism by which said process is carried out.

ln the accompanying drawings, Figure l is a side elevation showing portions of corrugated rollers and a piece of wood assing therethrough. Fig. 2- is a side elevation of a piece of wood after the same has been acted upon by the rollers and has been planed down to presenting smooth upper and lower surfaces. Fig. 3 is a side elevation illustrating a mechanism for corrugating but one side of a piece of wood. Fig. A is a side elevation of a press adapted to carry out the process in substantially the same manner as the form shown in Figs. l and 3. Fig. 5 is a perspective view showing the under roughened face of one of the dies.

ln the drawings, A represents two corrugated rollers spaced apart, and B represents a piece of wood which is run between said rollers and corrugated upon its upper and lower faces, thereby changing the straight grain ofthe wood into a wavy grain corresponding to the corrugations formed upon the piece of wood. The wood thus treated is then planed or sawed down to again bring it back to smooth upper and lower surfaces B', as shown in Fig. 2. These surfaces when polished or otherwise treated will display a broken, wavy, or curled grain instead of the straight grain which was first presented. In cases where the wood has to be run between Specicaton of Letters Patent.

Patented Dec. 25, 1906.

7,1906. Serial No. 301,698.

the two corrugated rollers or is to otherwise have both of its faces acted upon l prefer to steam the wood before subjecting it to the treatment above described.

Vhere the graining effect is to be produced only upon one face of the wood, steaming has not been found to be necessary, and the wood so treated may be run between one of the corrugated rollers A and a roller A', having a smooth pressure.

lt is not essential to the process that the wood be acted upon by the exact mechanical construction described, as the wood, especially when in small pieces. may be placed in a press D and its faces acted upon by dies C, which dies are formed with roughened or serrated faces of various designs and adapted to force the -grain of the wood from its natural straight lines into curled or wavy lines. lNhere the work so treated has been first steamed, it is held in iron molds until dried before having the roughened or corrugated surfaces planed oil.

lt will also be understood that designs of any desired ornamental character may be formed upon the rollers or dies and impressed into the wood, the process being the same whatever the nature of the design formed upon the rollers or dies.

ln treating soft woods, such as cottonwood and poplar, the spongy nature of the wood makes it necessary to hold the distorted grain in the artificial position in which it has been forced until it has set. lVith such soft woods a coating of thin hot glue is brushed quickly over the surface immediately after the wood has been planed, and a piece of paper is laid over the glue, and the same is covered with a smooth board or placed in any suitable mold or press, so as to subject the wood being treated to more or less pressure. After the glue is dried the paper and glue are scraped or planed ofl.

Having thus fully described my invention, what l claim as new, and desire to secure by Letters Patent, is*

The process herein described consisting of bending by pressure the natural grain of a block of wood, and planing the said block, cutting through bent portions of the grain.


fitnessesz VALTER S. SULLIVAN, J. W. SAwYnR.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2564055 *Jun 26, 1946Aug 14, 1951Armin ElmendorfPlywood panel
US2708296 *Mar 18, 1949May 17, 1955Mengel CompanyMethod of making plywood and a product thereof
US2896682 *Aug 17, 1956Jul 28, 1959Armin ElmendorfSingle ply veneer plank and method of making it
US3449482 *Oct 23, 1964Jun 10, 1969Union Carbide CorpMethod for forming molded ribbed panels
US5048581 *May 3, 1990Sep 17, 1991Weyerhaeuser CompanyVeneer tenderizer apparatus and process
US5489460 *Jun 30, 1993Feb 6, 1996Masonite CorporationMolded non-planar board and method and apparatus for making same
US6203738Mar 29, 1999Mar 20, 2001Masonite CorporationMethod for providing more uniform density in the manufacture of lightweight structural fiberboard panels
Cooperative ClassificationB27D1/005