Improvements relating to the Construction of Ceilings.
Year: 1889

page_text: Date of Application, 13th June, 1889
Complete Specification Left, 3rd Mar., 1890-Accepted, 19th Apr., 1390
PROVISIONAL SPECIFICATION.
Improvements relating to the Construction of Ceilings.
1 ADOLPH KATZ of Stuttgart in the Empire of Germany, Doctor of Philosophy and
Builder to the Government do hereby declare the nature of this invention to be as
follows:-
This invention consists in certain improvements in the construction of ceilings.
According to the improved method, wires are stretched across under the beams or
rufters, being fastened by suitable hooks or clamps to the beams. Upon these wires
are supported blocks or plates of papier mache or of cement or plaster or other
inaterials as at present used, filling or covering the space between the rafters. The
surface of the ceiling is then finished with a thin coat of plaster.
I prefer in fixing the wires to arrange them parallel to each other at a suitable
distance apart according to the strength of the wire used and at first to fasten them at
each end only to the outermost rafters respectively. The wires may next be fastened
upon alternate rafters in a straight line and afterwards properly tightened by
stretching them laterally and fastening them down upon the other rafters.
The blocks or plates as aforesaid, of size to fit between the rafters are then placed
upon the wires and the joints filled in. Lastly the undersurface of the ceiling is
coated with a comparatively thin coat of plaster.
Before fixing the wires I prefer to place under each rafter a strip of asphalted
material this being fixed to the rafter by the same clamps or nails which hold
the wires.
Dated this 12th dox of June 1889
HERBERT & Co.,
Agents to Applicant.
COMPLETE SPECIFICATION.
Improvements relating to the Construction of Ceilings.
I, ADOLPH KATZ, Doctor of Philosophy and Builder to the Government, of
Stuttgart, in the German Empire, do hereby declare the nature of my 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 consists in certain improvements in the construction of ceilings.
According to the improved method, wires are stretched across under the beams or
rafters, being fastened by suitable hooks or clamps to the beams. Upon these wires
are supported blocks or plates of papier-maché or of cement or plaster or other
materials as at present used, filling or covering the space between the rafters. The
surface of the ceiling is then finished with a thin coat of plaster.
I prefer in fixing the wires to arrange them parallel to each other at a suitable
distance apart according to the strength of the wire used and at first to fasten them
at each end only to the outermost beams respectively. The wires may next he
fastened upon alternate beams in a straight line and afterwards properly tightened
by stretching them laterally and fastening them down upon the other beams. The
blocks or plates as aforesaid of size to fit between the beams are then placed upon the
wires and the joints filled in. Lastly the under surface of the ceiling is coated with a
comparatively thin coat of plaster.
Before fixing the wires I prefer to place under each beam a strip of asphalted
material, this being fixed to the rafter by the same clamps or nails which hold

page_text: In the accompanying drawings, Figure 1 is a longitudinal vertical section of my
improved ceiling. Fig. 2 is a vertical cross-section thereof; Fig. 3 a bottom view
thereof, without the finishing coat; and Fig. 4, a longitudinal section through portion
thereof, showing an intermediate layer of cane beneath the beams.
The letters A A¹ represent alternate beams of a ceiling. To the lower faces of these
beams there are secured the asphalted layers b, with the rough side downwards.
a a are the wires stretched across beams A A¹ and secured to the alternate beams A
by nails or hooks a¹. Next the wires a aro stretched taut between the beams A, so
as to assume a zigzag shape, as shown in the lower half of Fig. 3. The wires a are
then secured to the beam A¹ at the apexes or angles thus formed by similar hooks or
nails a¹.
After the wires are properly stretched hollow tiles or a similar filling material is
placed upon them between beams A A¹. The joints or openings around the tiles are
packed in suitable manner and the usual finishing coat of plastering e is applied below
the wires, when the ceiling will be completed.
In Fig. 4 a layer of woven cane d is interposed under the beams, between the
asphaltum. and the finish e.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manuer the same is to be performed, I declare that what I
claim is :-
1. The method of constructing ceilings, consisting in stretching wires and fastening
the same below the beams to support blocks or tiles of papier maché, plastering, cement
or equivalent upon said wires between the beams and applying the usual finishing coat
of plastering below the wires.
2. In the method aforesaid, the manner of affixing the wires whereby they lie in
zigzag courses to obtain the necessary tightening thereof substantially as set forth.
3. In the method aforesaid, the combination with the boains of a rough asphalted
material or the like affixed below the beams whereby adhesion of the finishing layer
below the beams is provided for.
Dated this 3rd day of March 1890.
HERBERT & Co.,
18, Buckingham Street, Strand, W.C., London, Agents to Applicant.