Improvements in the Process of Producing Artificial Veneers.
Year: 1896

page_text: Date of Application, 1st Dec., 1896-Accepted, 9th Jan., 1897
.COMPLETE SPECIFICATION.
1. Improvements in the Process of Producing Artificial Veneers.
1 CARL KÖSTER of 7 Limburger Strasse, Cologne, on the Rhine, Germany,.
Decorative Artist, do hereby declare the nature of this invention and in what.
manner the same is to be performed to be particularly described and ascertained
in and by the following statement :-
My said invention relates to improvements in the process of producing artificial
veneers.described in the Specification of my Patent No. 6104 of A.D. 1894.
The improvements which constitute my present invention are intended partly to-
obviate waste of material and partly to obtain veneers which shall more faithfully
represent natural marble.
Referring to the accompanying drawings
Fig. 1 in its entirety represents in cross section a balk formed by successive.
layers or coats laid round a central core.
In order to obtain from such a balk straight rectangular sheets of veneer only
the parts marked a a are practically useful. The outer parts bb as well as the
inner pieces ce may be considered as waste as it is only in rare instances that they
can be usefully employed. In order to prevent such waste of material I according
to my present invention do not distribute the successive layers or coats around a
central core but instead of this I apply them to a section only of such a core such
as d in Fig. 2 which represents a cross section of a veneer balk made in accordance
with my present invention. After the application of each layer a scraper is passed'
along the side faces fin order to continually remove the surplus material which
may flow over the sides of the gradually increasing block which is thus built up-
with straight vertical sides. In a balk such as shown in Fig. 2 only the part a¹
bounded by dotted lines is serviceable for cutting rectangular veneers but in this.
case only the small parts c' el are wasted inasmuch as the upper arched piece g is.
used as a base for the next block.
In order to produce veneers having a marble design the balk or block from.
which they are to be cut is produced in the following manner. First of all small
pieces of the most irregular and diverse shapes are made from the material which
is to be used for forming the block. A number of such small pieces are used:
instead of the base d of Figure 2 and are placed at various distances apart on a.
table or board as at dd in Figure 3. Over these pieces the first layers of material
are applied as before described. Over these layers other separately formed pieces.
or small masses such as are placed at irregular intervals. Over these again are
spread successive layers of material of suitable shades or colours and so on until a
balk of suitable dimensions is produced such for example as is shown in cross.
section in Fig. 3. Before use as above described the separate pieces d'd may
have previously applied to them several successive coats or layers of material..
In building up such a block the layers of material will acquire irregular degrees.
of thickness owing to the varied shapes and positions of the inserted pieces.
If after drying such a block is cut into veneers in places parallel to the table or
board in which it has been built up the various sections present an appearance
closely resembling real marble, owing to the layers which may be of alternating
light and dark tints showing widely ramified veinings while the inserted pieces-
produce variegated light or dark places in the sectional surface.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is.-
1. The hereinbefore described improvement in the production of artificial veneer
balks consisting in applying the layers of material on an arched base in such a
manner as to produce a block with straight sides substantially as set forth and
described with reference to Fig. 2 of the accompanying drawings.
2. The process of producing balks for marbled veneers by applying layers of
suitable material in alternation with detached or inserted pieces thereof
substantially as hereinbefore set forth and described with reference to Fig. 3 of
the accompanying drawings.
Dated this 30th day of November 1896
E. T. WHITELOW, A.M. Inst. C.E.,
70 Deansgate, Manchester, Agent for the Applicant.