Year: 1886

page_text: I, HERBERT JOHN HADDAN, of 67 Strand, in the County of Middlesex, Civil
Engineer, do hereby declare the nature of this invention, a communication to me
from abroad by Carl Gärtner of Hamburg, Germany, Manufacturer, and in what
manner the same is to be performed to be particularly described and ascertained
in and by the following statement:-
This invention relates to parquetry and consists in so shaping and fixing the
various pieces that no glue is required, and so that the nails or screws used are not
visible on the finished parquetry.
The small pieces of wood, of which the parquetry consists are fixed in a peculiar
manner by the means of flanged fillets or lists these latter being nailed to the
flooring and covered by other pieces of parquet so that the heads of the nails are
not seen. Should the flooring shrink or expand, this will have no influence upon
the parquetry.
Fig. 1 shows part of a parquetry made on this principle. Fig. 2 a cross-section
of the parquetry across the lists, line a b of Fig. 3. Fig. 3 is a cross section along
the lists line cd Fig. 1. Fig. 4 a cross section of a modification.
The flooring consists of boards I, fixed in the usual way. Upon this flooring
the lists are nailed at equal intervals-As shown by Fig. 2 these lists have
flanges or tongues h. Grooved pieces of parquetry are introduced between the
lists the said pieces having about twice the thickness of the lists or more; the
tongues of the lists enter the grooves al of the pieces of wood without however
filling the latter and hold them securely to the floor. The intervals above the
lists H between the grooved pieces are filled by other small pieces of parquetry y
provided with tongues y¹ which catch in the upper half of the groove ¹ of the first
pieces c. In this way the pieces y are held in place by means of the lists H and
at the same time cover the same, and prevent the nail heads from being visible.
The lists H run through the whole length of the room, but the length of the
small pieces xy may vary, consequently patterns or figures may be laid as in Fig. 1.
Fig. 3 shows in a larger scale how pieces of various lengths A, B, C, D, E, F are
placed along the lists; these pieces are shown by the same letters, in Fig. 1.
.....

page_text: In place of the above the modification shown in Fig. 4 may be used-In this
case the pieces y are dispensed with and the pieces (of any convenient, breadth)
placed as shown so as to entirely cover the lists H and yet be held securely by the
latter.
It is evident that the various pieces may be cut from different kinds of wood, in
order to form patterns of various colours.
As an advantage of this parquetry, it must be pointed out that in case the
flooring should shrink or expand, it will not influence the position of the parquetry,
also, that woods of various degrees of hardness may be employed without having
any influence on the equal wear and tear of the parquetry.
Having now particularly described and ascertained the nature of said inven-
tion and in what manner the same is to be performed, I declare that what
I claim is
In parquetry:
1. The lists H nailed at intervals to the flooring I and provided with tongues h
that serve to hold down pieces of wood provided with grooves c³, these pieces
holding other tongued pieces y placed between them and upon the lists H
2. The lists H combined with the parquet pieces a placed between and covering
the same substantially as described and illustrated in Fig. 4.