US1416212A - Process of producing inlaid work and the like - Google Patents

Description

J. KAUFMANN. PROCESS OF PRODUCING INLAID WORK AND THE LIKE. APPLICATION FILED JAN. 8, ISIS. RENEWED MAR. 27, I917.

1A1 6,212. atented May 16, 1922.

IKau/mann.

in 0622 for OFFICE.

JACOB KAUFMANN, OF WIIAMEBSDO'RF, GERMANY.

PROCESS OF PRODUCING- INLAID WORK AND THE LIKE.

Specification of Letters Patent. I Patentgd )[ay 16, 1922 Application filed January 8, 1913, Serial No. 740,771. Renewed March 27, 1917. Serial No. 157,855.

To all whom it may concern:

Be it known that I, JACOB KAUFMANN, a subject of the German Emperor, and residing at No. 172 Kaiserallee, Wilmersdorf, Qermany, have invented certain new and useful Improvements in Process of Producing Inlaid Work and the like, of which the following is a specification.

This invention relates to the of inlaid work.

It has been proposed to press metal inlay ornaments cut from a plate into a veneer of wood, so as to fill the interstices between the inlay ornaments with wood.

It has also been proposed to stamp an embossed design in a metal plate and to press on to the embossed plate a veneer of wood so that the wood enters the recesses of the metal plate, and then to grind away the projecting portions of the wood so as to produce an imitation of tarsia inlaid work.

In carrying out the first of those two known processes the tarsia inlays had to be sawn out and then assembled on a foundation to which they had to be fixed, for instance by cementing or, the like, whilst in the second of those processes amould corresponding to the embossed design was necessary, for pressing the wood veneer and the metal together.

The object of the invention is to provide an improved process for the production of inlaid Work.

The invention consists broadly in a process which comprises forming depressions in one face of a metal plate, pressing together production the plate and a veneer of wood and grinding away the wood until level with the face of the metal plate.

The invention is illustrated by way of example in the accompanying drawings in which: 7

Figure 1 shows a plate prepared according to the improved process before the wood is ground away.

Figure 2 represents a section of an inlaid plate comprising a modified form of plate having further depressions provided in the recesses in order more securely to hold the wood in position.

Figure 3 represents a further modification of the metal plate illustrated in Figure 1, the recesses for holding the inlay being provided in the face of the plate and other recesses on the back of the plate, the purpose of which is to facilitate securing the inlaid plate to a. foundation.

Figure 4 represents a metal plate as shown in'Figure 3 but with the wood in situ.

In the example shown in Figure l the recesses 4 in the face of the metal plate have been formed byetching or the like, the back of the plate is left smooth and the wood veneer 3 is pressed upon the recessed face of the plate 1, as shown, and then ground away along the section line AB.

The process for forming the plate illustrated by Figure 2 is carried out as follows After the metal plate has been recessed for example by etching by a first etching process, the ground of the said recesses is provided with a screen or resisting design and 4c is prepared as follows The metal plate 1 is first provided, by means of a first etching process with recesses for receiving the wood veneer. Then the back of the metal plate is furnished with a protective screen or resisting coating and is exposed to the action of an etchlng fluid. At those parts which are not protected, channels 6 are formed which lead into the mass of the metal and which break through the ground of the recesses. At the same time those parts which are situated under the ornaments that are left standing, are provided I with a number of depressions 7 which are of considerable value in enabling the metal to be securely glued or cemented to a suitable foundation without further preparation.

Then the woodveneer is pressed into the recesses, 30 that it extends through the channels 6 to the back of the plate. The roughened portions, that is to say, channels situated under the standing ornaments remain empty.

Figure 4, as previously stated, represents the completed piece of inlaid work with the wood in 'situ.

It is to be understood that in etching the plates instead of using protective screens or resisting coatings other means of protection may be employed, for instance a fabric stencil soaked with an acid-proof liquid may be cemented to the surface which it is desired to etch, and then the etching may be effected in the usual manner. The formation of suitable plates by casting stamping, rolling or electrotyping needs no special description.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is l. A process for the production of inlaid work comprising the following steps: forming depressions or recesses in one face of a metal plate; pressing together the plate and a sheet of wood veneer, and grinding away the wood until level with the face of the metal plate.

2. A process for the production of inlaid work comprising the following steps: forming depressions orrecesses in one face of a metal plate forming. further depressions in the base of the recesses; pressing together the plate and a sheet of wood veneer and grinding away the wood until level with the face of the metal plate.

3. A process for the production of inlaid work and the like comprising the following steps: etching depressions or recesses in one face of a metal plate; pressing the plate and a sheet of wood veneer together and grinding away the wood until level with the face of the metal plate.

4. A process for the production of inlaid work and the like comprising the following steps: etching depressions or recesses in one face of a metal plate; etching further (lepressions in the base of the said recesses; pressing the plate into a sheet of wood veneer and grinding away the wood until level with the face of the metal plate.

In testimony whereof I aflix my signature in presence of two witnesses.

JACOB KAUFMANN.

Witnesses WOLDEMAR HAUPT, HENRY HAsPER.

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