Year: 1886

page_text: Date of Application, 1st Apr., 1886.
Complete Left, 1st. Dec., 1886.
Complete Accepted, 25th Jan., 1887.
[Communicated from abroad by JOHANN HEINRICH TIMы, of Glückstadt, Prussia,
in the Empire of Germany, Builder.]
I, CHARLES DENTON ABEL, of No. 28 Southampton Buildings, Chancery Lane in
the County of Middlesex, Consulting Engineer and Patent Agent, do hereby declare
the nature of this invention to be as follows:-
The occurrence of Fungus in flooring is generally due to the fact that the woodwork
is immediately in in contact with the clay, mortar, concrete or other filling beneath or
within the floor.
According to the present invention such immediate contact is prevented by the
following means. In the case of ground floors where the joists or beams are bedded
directly upon or in the filling material, such as clay, mortar, or concrete, the joists
or beams are in the first instance covered on all their surfaces with a fabric such as
tarred roofing felt; they are then placed in position, and the clay mortar or concrete
is then filled in round them. Upon the filling as also upon the upper surfaces of the
joists or beams (which may have been left uncovered by the fabric before mentioned)
is now laid a layer of the said roofing felt and this is also, by preference, carried up
against the walls behind the skirting boards. Upon this layer of felting the floor
boards are then laid. Thus the entire woodwork is effectually isolated from the clay,
mortar or other filling, and the formation of fungus is effectually prevented.
For upper floors, in which a clay or mortar filling is introduced upon intermediate
ceiling boards, the upper surface of such intermediate ceiling boards, as also the sides
of the joists or rafters above such surface, are covered over with the felting, and upon
this is then laid the clay or other filling. Over this, as also over the top surfaces of
the joists is laid a layer of the felting, and upon this are then fixed the flooring boards.
ADEL & IMRAI,
28, Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: COM DIE DIEUITICATION:
Improved Means for Preventing the Occurrence of Fungus
in Flooring.
I, CHARLES DENTON ABEL of No. 28 Southampton Buildings, Chancery Lane in
the County of Middlesex, Consulting Engineer and Patent Agent 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 :--
This invention has for its object to protect the boards, beams and joists of wood
flooring against the occurrence of fungus, and thereby to increase the durability of
the buildings.
The occurence of fungus in flooring is generally due to the presence of the
filling material introduced between the joists, and which consists mostly of clay,
mortar, sand, earth or concrete. The present invention consists mainly in isolating
the timber from the said filling by means of roofing felt or tarred or otherwise
impregnated paper or other fabric.
On the accompanying drawing are shewn various arrangements for carrying out
the invention. Figs. 1, 2 and 3 shew the application to a ground floor, and Figs. 4
and 5 that to an upper floor.
Fig. 1 is a cross section of a floor with its supporting beams or joists, a are the
flooring boards are the beams and c is the skirting board, m are the walls of the
building and R is the filling of clay or other material. Figs. 2 and 3 shew respec-
tively an enlarged part cross section and part longitudinal section of the floor. Each
separate bean or joist b is first covered with roofing felt or impregnated paper d on
the bottom, the two sides, and the end surfaces, as shewn at Figs. 2 and 3, and the
beams are then laid in their places with their uncovered sides uppermost, and the
filling R is stamped in between them. A sheet of felt or paper d is then laid over
the upper surface and filling and is carried up the walls m m behind the skirting
board c. Upon the felt or paper covering. are now laid the flooring boards a which
are nailed to the beams or joists b in the usual manner.
By means of the felt or paper sheeting d¹ spread over the whole surface, the
boards a are completely isolated from the filling R, while the beams or joist are
isolated by their coverings d, and consequently, if this operation is performed with
care, the formation of the fungus is no longer possible.
In upper floors, Figs. 4 and 5, where the clay or other filling is introduced between
the flooring boards a and the intermediate ceiling inserted between the joists or
beams 6, the latter are not separately enclosed in the felt or paper as in the preceding.
case, but a layer of felt or paper d' is first laid upon the intermediate boards k and is
carried up the sides of the joists as shown. Upon this covering d' is then laid the
filling R, and over this and the upper surfaces of the joists is laid the felt or paper
sheeting.d for the reception of the flooring boards a as in the preceding case. Thus
the flooring boards are, as before, protected by the covering d', while the joists b' and
the intermediate boarding kare effectually protected by the covering 2, so that there
is no direct contact between the wood and the filling.

page_text: Having now particularly described and ascertained the nature of my said invention
and in what manner the same is to be performed I declare that what I claim is :-
1. Protecting flooring against the occurrence of fungus by interposing between the
surfaces of the flooring, boards, and beams or joists and the surfaces of the filling
material with which they would come in contact, a separating layer or covering of
roofing felt or impregnated paper, substantially as herein described.
2. Protecting the flooring boards a and beams or joists b against contact with
the filling material R of ground flooring by interposing between the surfaces a
covering d d of roofing felt or impregnating paper substantially as herein described
with reference to Figs. 1, 2 and 3 of the drawings.
3. Protecting the flooring boards a intermediate boards and beams or joists b¹ of
upper floors against contact with the filling material R¹ by interposing between the
surfaces thereof a covering d¹ d² of roofing felt or impregnated paper, substantially as
herein described with reference to Figs. 4 and of the drawings.
ABEL & IMRAY,
Agents for the Applicant.