Improvements in or relating to the Construction of Plank Floors.
Year: 1897

page_text: Date of Application, 22nd Apr., 1897-Accepted, 5th June, 1897
Improvements in or relating to the Construction of Plank Floors.
I, OSWALD KAHNT, of 30), Bahnhofstrasse, Sagan, in the German Empire, Builder,
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 invention relates to an improved construction of flooring without visible nails.
Referring to the accompanying drawing
Figure 1 shews a plan
Figure 2 a section down to the cross beams on a larger scale and
Figures 3 and 4 shew details of the invention.
The planking is composed of squares A, which are constructed of two layers
fastened one upon the other of planks a closely fitted side by side, in which arrange-
ment the pieces of the upper layer are placed at a right angle to those of the lower
layer, and in which two parallel edges of each layer project over those of the other to
an equal extent. The squares thus composed, the size of which must be proportionate
to the distance between the beams, are nailed down to the floor beams B through the
projecting edges a¹, in the order indicated in Figure 1, so that two squares lying side
by side invariably engage with each other by means of their stepped edges, and in
the position of the beams there is only always the third square A A' nailed down,
whilst the square A² lying between engages with its edges and projects below under
the two side squares A', whilst its edges lying upon the beams on the other hand cover
the projecting edges as of the square A³ Dailed to the beam. In this manner a firm
connection is effected between all the squares without having a nail visible upon the
upper surface. Along the walls the squares touching the same are secured with screws
or nails, and the same are concealed by the skirting boards. The free square pieces
between the beams can have narrow planks underlaid, also there can be secured in the
edges connecting spikes d as shewn in Figure 3. The squares enable waste wood to
be suitably made use of, in that the lower layers may be of inferior, and the upper
layers of superior quality of wood.
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 improved wooden flooring without visible nails consisting of single squares,
in which the two parallel edge pairs are constructed stepped in opposite directions
which squares are alternately secured through their projecting edges upon the beams,
so that between every two of such squares a square is placed with its lower projecting
edges under the stepped edges of the two neighbouring squares.
2. The wooden square applicable for the construction of the flooring as set forth in
Claim 1 consisting of two layers of narrow planks secured the one upon the other, in
which layers the planks run at right angles to each other and project over each other at
the ends.
Dated th
1
W. P. THOMPSON & Co.,
Of London, Liverpool, Manchester, and Birmingham,
Patent Agents for the Applicant.