A New Method of Preventing the Growth of Wood Fungus in Boarded Floors and Parquetry.
Year: 1890

page_text: Date of Application, 29th Jan., 1890-Accepted, 31st May, 1890
COMPLETE SPECIFICATION.
A New Method of Preventing the Growth of Wood Fungus in
Boarded Floors and Parquetry.
I, JOHANN HEINRICH TIMM, of Glückstadt, in the Empire of Germany, Contractor,
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 :-
The object of this invention is to prevent the growth of wood fungus underneath
and around the beams of boarded floors and parquetry so as to make the same more
durable than heretofore has been the case.
And in order that my invention may be more fully understood I have caused to be
appended hereunto one sheet of drawings marked with letters of reference indicating
like parts in the various figures.
Figs. 1, 2 & 4 are cross sections and Figs. 3 & 5 longitudinal sections. Fig. 1-3
show the method of preserving parquetry applied to a ground floor and Figs. 4-5, to
a floor above.
The growth of the wood fungus chiefly results from the material (clay, earth, sand,
etc.) used for filling up the space between the beams and the boards, which I prevent by
covering the surfaces of the beams and boards in contact therewith, with incombustible
or impregnated card board (carton pierre) so as to completely insolate the beams and
boards from the filling material.
Referring to Fig. 1. a are the boards, & the beams, c the skirting-board in the walls
of the buildings and R the filling material, (clay, earth, sand etc.).
Each beam (or support) b on being fixed in its place is covered at the bottom, the
sides and ends with incombustible or impregnated card board (carton pierre) d see
Figs. 1, 2 & 3, while the top surface is left uncovered. When placed in position the
filling material R is rained between, in the ordinary manner and a bed of incom-
bustible or impregnated card board d' employed on the filling material R and beans b
and between the skirting board c and wall m, on which bed, are then placed the
boards a and nailed as usual to the supporting beams b.
It will thus be understood that by the application of the said card board bed d¹,
which covers the whole space, the boards a are completely isolated from the filling
material R also every beam 6 through the covering
and thus with little trouble the
forming of wood fungus made impossible.
On the floors above the ground floor, see Figs. 4 & 5, where clay is introduced
between the boards a and the under floor K fixed on the beams b' it is not necessary to
provide each beam separately with the said covering, it is sufficient to cover the lower
floor K with the said card board bed & which is caused to rise on the sides of the
beams 6. On this bed of card board d' clay, etc. is applied until the space between
the beams b² are filled entirely and is then covered by the incombustible or impreg-
nated card-board bed d¹ (as is the case in the arrangement shown in Fig. 1.) and over
which are nailed the boards a. In this case the said bed d' separates the boards a
from the clay, etc. while the said bed d² separates the clay, etc. from the under floor K
and in the meantime from the beams 6' in such a manner that at no place the clay
comes into contact with the wood.
It will be understood that this method of preserving parquetry is not only applicable
for new but also old buildings.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, I declare that what I
claim, is-
The method of preventing the growth of wood fungus in boarded floors and

page_text: parquetry, consisting in isolating the filling material (such as clay, earth, sand, or
other material) by means of a bed or covering of incombustible or impregnated card
board (carton pierre) which separates the said material from the boards and beams and
the under floor, substantially as ana for the purpose specified.
Dated this 28th day of January 1890.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicant.