US1204005A

US1204005A - Process of ornamenting metal.

Info

Publication number: US1204005A
Application number: US84375214A
Authority: US
Inventors: George J Glotzbach
Original assignee: American Can Co
Current assignee: Primerica Inc
Priority date: 1914-06-08
Filing date: 1914-06-08
Publication date: 1916-11-07
Anticipated expiration: 1933-11-07

Description

" yG.1.GL0TZHACH. vPROCESS oFoRNAMENTmG METAL.

APPLICATION FILED :um: 8.1914

GEORGE J'. GLOTZBACH, OF AUSTIN, ILLINOIS, ASSIGNOR T0 AMER F NEW YORK, N. Y., A

, PROCESS OF ORNAMEN'IIN G METAL.

Specication of Letters Patent.

. Patented Nov. 7. :im tt.

Application led J une 8, 1914. Serial No. 843,752.

To all whom z''mag/ concern.'

Be it known that I, GEORGE J. GLOTZBAOH, a citizen of the United States, residing in ustin, in the county Of Cook and State of Illinois, have invented a new and useful Improvement in Processes of Ornamenting Metal, of which the following is-a specification. The invention relates to the Ornamentation of surfaces, preferably metallic 'such as tin, to produce the appearance and effect of etching, and consists jin, the application to the said surface, so as to become in effect a permanent partl of the surface, of a substance or material which is substantially transparent or capable Of becoming Or being made so. A suitable substance for this purpose is gum arabic, which is applied over the surface and caused to adhere thereto by a suitable adhesive, such as varnish; but it will be understood that the invention includes any equivalent of said gum arabic suitable for the purpose. The Varnish is preliminarily applied to the Surface in -any desired ornamental or other design, and it may be so applied by a printing process. The gum arabic preferably in rather finely comminuted, powdered form is sprinkled or dusted onto such prepared surface and will adhere thereto where the surface has been previously treated with the said varnish. The materials so applied tO the surface or plate are then allowed todry or harden, after which all surplus non-adhering gum arabic is removed, allowing to remain only that which forms the design previously printed in varnish or sizing. In this incomplete state the said design has a rough, coarse, white, opaque appearance. A coat of gloss varnish covering the entire surface of the sheet of metal is then applied, which causes the said Opaque appearance to disappear and renders the gum arabic more or less transparent, giving to thewhole plate and the design thereon the identical appearance of a high grade etched effect. The'design formed by the said gum arabic Or equivalent material will appear to have been produced on the plate in intaglio, as if the surface `had been etched away by an acid, and the other parts of the plate not covered by the said gum will appear to be in relief, especially if, as is preferred, the design be originally printed upon a polished Or brightly lac- 5 quered metal plate.

In Order to make the invention more clearly understood I have indicated in the l accompanying drawing a practical manner of carrying the same into practical effect.

In said drawings-Figure l is a diagram showing a portion of a metal surface having a design lithographed thereon. Fig. 2 is a snnilar view of the same design after the completlon of the same by the application of a substantially transparent gum, on certain parts of the design, and the drying and varnishing Of the gum. Fig. 3 is a sectional view of a portion of the completed plate, greatly exaggerated as to the thicknesses shown.

Referringto the drawings, 1 indicates the metal plate and 2 the design lithographed thereon, the same being shown in the drawlngs by black lines, but it will be understood' that the design can or may be shown by any desired colors applied to the plate by a lithographic process at the places to produce the effect desired.

3 indicates the spaces which are to be shown, in the finished design, as if etched into the plate, any appropriate portions of the plate being selected for this purpose, preferably in spaces between the color printing. These parts ofthe plate will be covered b v an adhesive varnish 7 (Fig. 3) which will take and hold the comminuted gum, while the residue of the latter may be removed or dusted Off from all the other parts of the plate. Ordinarily the portions selected to be shown as if etched will be parts Ol what may bc termed the background of the design, which parts may be advantageously covered, for instance, by gold or silver lacquer. 4 (Fig. 2) indicates the same spaces 3 having applied thereto a transparent gum, which has been dried and covered with a finishing gloss varnish. The effect of this is to give to those portions of the design to which the gum has been applied a substantially transparent and slightly grained appearance, which in contrast with the normally smooth surface of the metal plate appears to be the result of etching into and below the surface of the plate, the normal surface of the plate indicated at 5 appearing gto the eye to stand out above the said portions 4f which have been covered by the said gum; whereas in fact the normal surface 5 of the plate is slightly below the parts that appear to be etched into the plate, to the extent of roam can ootrran'r, CORPORATION Or new JERSEY.

' the slight thickness of the gum which has been applied. The last step isto apply the said gloss varnish 6 over the entire plate, which has the edect of causing the gum to be substantially transparent and the apparent intaglio etching to look deeper and throws the other parts of the plate more into apparent relief.

The design may be entirely of the char-` acter above described, but very beautiful effects may be produced by combining therewith designs, and lettering, of any desiredV character, in various artistically selected colors and tints; all of which may he applled to the plate at the outset and before the first adhesive varnish is applied, by lithographie printing. The general appearance of such a colored design interspersed with the said apparently etched design, and interspersed with lines where the polished or brightly lacquered parts of the metal plate appear, closely approximates that of cloisonn enamel work, and yet the Ornamente tion is produced simply and with comparative cheapness of material and work. For example a floral design may be produced, interspersed with lettering, in various different colors; certain parts of the plate may be left with the polished tinned surface exposed, giving a silvered effect; other parts of the plate may be treated with a bright yellow lacquer, giving a golden edect; and on the plate thus prepared the etched design rna'y be printed in adhesive varnish or equivalent substance on the said silver and golden surfaces. Thereafter the gum arabic or its equivalent is applied as'already described. Finally, a gloss varnish of a transparent character is applied over all, giving to those parts of the plate covered by the 4gum arabic a substantially transparent appearance to Showthe metal beneath, or the underlying lacquer, and adding to the brilliancy of the whole design.

To give a practical example 'of carrying out the process: The first printing is in yellow, applied to all parts of the plate where the intended design requires that color; the second printing is in red; the third printing is in lacquer; the fourth printing is in black; the fifth printing is in light blue; the sixth printing is in dark blue; the seventh println is of the so-called etched design, in varnish or sizing consisting of burnt 11nseed oil and gums; rthe next operation is' that of ap l ing the pulverized um arabic which magi ybe sprinkled or dugsted on of applied with 'cotton or soft wool; after drying and hardening and the removal of all surplus powder, allowing only the etched appearing design to remain, the gloss varnish, mainly of resin, is applied over all to brighten and protect thewhole design and to give to the gum arabic a substantially transparent and etched appearance.

hesive varnishv by .which the gum is attached u is or may be colorless,'and -is applied at points where the plate is to appear to bel etched out and it is .not applied where* the plate is to appear to. be in relief. -Thebest result is attained ,by applying the gum :in

form* of powder, not so iineras flour but having a palpable grit. The gum,.afterf application, will-dryin the atmospherabut the process may be hastened `by putting the plate having the gum applied 'thereto through a heater of about 140? or' lObg F. i

The final coatingl of thin andlear gloss varnish both enhances the effect and falso acts as a preservative. 1 i

The metal thus produced maybe used Ain the fiat, as for signs, or maygbe cut and worked up into cans, boxes, .re'ceptacles' of various kinds, and a vgreat varietylbf articles, of a richly ornamented appearance. vIclaim: j 1. A process 4for the ornamentationV of metal, toproduce the effect of etchin g,whichv consists 1n applying to thermetal plate'in powdered condition a material capable ofV being rendered substantially' transparent and arranged according to the I'desired design, and applying to the plate over the said material a varnis the effect of being etched.

2. A process or` the ornamentation of metal, to produce the effect of etching, which to render the` said. matep rial substantially transparent andproducey consists in applying to the metal plate a substantially transparent gum in comminutcd form and arranged-according 'to the desired design on those parts'of the plate which are to appear etched out, leaving ex- 1 posed parts of the plate which are to appear in relief, drying the gum land applying over the gum a gloss varnis g substantially as specilied.

3. A process design upon the plate with varnish or sizing, then applying to the plate comminuted gum and causing 1t to adhere to the varnish or sizing, and then after the gum is' dry applying over the gum a gloss varnish; substantially as specified.

4. A metal, sign upon'a metal plate, in any desired coors; then lithographing a design on the plate, with an adhesive; then ap lying gum 1n comminuted form on the ad esive; and then, after the gum is dry, applying a varnish over the gum to renderit substantially transparent; substantially as specified.

5. A metal plate having a design thereon for the ornamentation of -metal, which conslsts'in printing the desired process for the ornamentation of. w 1ch consists 1n lithographing a I,

inthe semblance of an etching, and composed of an adhesive and comminuted gum held by the adhesve,' the gum being rendered substantially transparent by an eX- e ternally applied varnish; substantially as speeied.

6. A metal plate having n design thereon in the semblance rof en etching, and Colnposed of en adhesive and a powdered mate- 10 rial capable of being rendered substantially transparent and held by the adhesive, the said material being rendered substantially tralisparent by an externally applied var nls In testimony whereof I afX my Signat-ure in the presence of two subscribing Witnesses.

` GEO. J. GLOTZBACH. Witnesses:

R. H. DRAKE, A. M. SIEGEL.