US700348A

US700348A - Color-shading wood.

Info

Publication number: US700348A
Application number: US9356502A
Authority: US
Inventors: Samuel Lyon
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-02-11
Filing date: 1902-02-11
Publication date: 1902-05-20
Anticipated expiration: 1919-05-20

Description

i Umren .Sr/ir13SgT'PLLXTENFYTOFFICE?y f SAMUEL LYON, or lI'iAiviURe,n GERMANY.

srnerron'rronf'orming-part ofnetters Patent 1in).700,348,datealn'ay20,1902. f 'f 'j "l f 1902. semina.'93.5657" ditspecimen.)

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Be it known that I, SAMUEL LYON, a subject ofthe German Emperor,and a residentof Hainburg, in the German Empire, have invented certain new and useful Improvements in Color-Shading `llood, of which the following f v is a specification.

`This inventionrelates to impro vements in the .production of color-shading ,upon Woodsurface, and is` more particularly applicable* i for the production ofimitation ofwood-.graini fing' equal in-appearance to thenatural grain f and with the vivacious naturalfplay of lines `and color-shading seen in the natural grain. Besides designs of wood-grain my invention also enables other designsiwith variouscolorshadings to he produced, and more especially l to the pyrographic decoration ot' Wood.

, The essential ypartof 4the invention relates to special arrangement of thebottom orrimpression-surface of the diese-'that is to say, to the manner in Whichthe design to be produced is shapedor engraved on the die. In the impression-surface of the die the'parts correspondin gto thelight tints,the half-tones,v

or graduated half-tones are recessed. Now

according to this invention the recesses in myz improved die, either all or some ofthem, are

made more or less deepthat is to,` say, of a" diiferent depth-and in addition to which they may all or some of them have` unsymmetrical outlines, while the parts in relief may be upon the same level or disposed so as to be upon dierent levels. v l n n In order Vthat my invention may be more' fully understood byone skilled'in the art to which it appertains, I will now proceed to describe the same in detail, reference being had to the-accompanying drawings, whereon likebrand or embellishment has been applied thereto by means of the die a. Figs. 4, 5, andv 6 are sectional views of several portions of the die. These views are drawn' on a somewhat- Fig.4 2 is a vertical section Fig. 3 is a View of the( finished Wooden plate h as it appears after the larger scale'and illustrate the characteristic 'shapes or con tigurat'ions ofthe recesses or in-` 1 u n f taglio portionsA of the die."Fig. 7'shows` a Wooden block w, from which the plates or ve-4 neers maybe cut in the manner indicatedfb'yf.' l

the dotted lines?n r; and Fig. Sis a sectional AViewshowingamodifi'edformofmyimprovedk l 1 6o I d ie. ,l I When the lhot or heated die is pressed upon the woodenplategb, the vvparts ofthe latter vvhicha'reY in immediatecontact with the relief `parts a of the die are, as usual, burned to-a deep black. The other parts of the Wood beneath the recesses@2 are less burned and ing between the lighter and the darker shades l alters" with the distance that the Walls `of the' recesses arev from the wood. If therecesses l are formed"inr a symmetricalmanner with slanting sidess, Fig. 401 s', Fig. 6, Suchas an inverted-V shape, it will be found thatthe light tints' on" the Wood beneath the remotest part of such recess a2 -disappearsfor blends gradually into the dark tints or charred po r' tions of the Woodv beneath the two adjacent portions et in relief that contact with the Wood.

If, however, the sides of the recesses are ir-V regular, withanl inclined side s2, Fig. v5, and

at or beneath the inclined side s2, While a more or less sharpdilerence will be produced at or beneath the straight side's3, so thatthe charredV tintson the Wood at the latter part -stand out-more or less distinctly from each f 9"( other, as is obvious from-the embellished plate b, Fig. 3, without further explanation. `It

will thus be seenthatV the formation of the recesses and their sides is the cause of a more f or less sha1p'or`gradnal transition or blend f n V vtolshade,jand,further, thetint on themood 1 ing of the pyrographic decoration from light will bethe lighter the deeper the recesses.

` In theV modification shown in Fig.=8lthe im; l

4proved die" is provided with relief portions a' Id3 a4, arrangedv on different levels Jin" orderv to'prodiice different pyrographiceffects, the blending of Which is again controlled by thev distance of the surface of the heated die from the Wood to be decorated.

Generally expressed, the im pression-su rface of the die affects the wood in such a manner that the carbonizing of the latter is effected by those parts that come into contact with the Wood,and thus produces black. Lighter shades (half-tones) of uniform tint are produced by surfaces as parallel to Lthe contacting surfaces ct', the intensity of the tint or half-tone in any case being dependent upon the degree of l1eat transmitted to the surface of the Wood beneath it, such degree being, in accordance with the welhknown lawof heat,in versely proportional to the square of the distance of the heating-surface from the surface heated. A shallow recess in the die produces, therefore, a correspondingly deeper tint, because the air in't is heated more intensely than when the recess is deeper. In this manner different tints may be produced, the outlines of which may be caused to appear more or less sharp or definite or graduated and indistinct, according to the described arrangement of the surfaces of the die. At the parts Where the recesses are so deep that the heat radiated therefrom does not affect the Wood its natural color remains to produce l1ighlight.

It is an'espeeial advantage to have the Wood w cnt upon the cross-grain, as indicated in Fig. 7 by dotted lines r r. In this manner the longitudinal fibers of the Wood are cut through and form fine channels between the two surfaces of the plate b,through which the carbonization advances to the lower surface. Consequently the Wood thus marked with the design, and which may, for instance, be a veneering-sheet glued to an ordinary deal-board, can be planed and scraped Without fear of destroying the design. A

Having thus described my invention, what I c'laim as new therein, and desire to secure by Letters Patent, isf i l. The herein-described die for pyrographic decoration in which parts are projected so as to contact with the material suieiently to char parts of the design, and the parts of the die immediately adjacent to said charrng parts are arranged at angles that vary aecording as the surfaces bounding the charred portions of the `contemplated design are intended to contrast or merge as to light and shade with said charred portions, substantially as and for the purpose set forth.

2. The herein-described die for pyrographic decoration in which parts are projected so as to contact With the material sufliciently to char parts of the design, the parts of the die immediately adjacent to said charring parts are arranged at angles that vary according as the surfaces bounding the charred portions of the contemplated design are intended to contrast or to merge as to light and shade with such charred and such portions of the die as are intended to produce areas of uniform tint of any shade, being maintained at a uniform distance from the surface acted upon, substantially as and for the purpose set forth.

SAMUEL LYON.

lVitnesses:

MAX KAEMPFF, E. II. L. MUMMENHOFF.