Improvements in Fireproof and Waterproof Ceilings and Floors.
Year: 1894

page_text: Date of Application, 31st July, 1894
Complete Specification Left, 1st Sept. 1894 Accented 13th Oct. 1894
PROVISIONAL SPECIFICATION.
Improvements in Fireproof and Waterproof Ceilings and Floors.
I, WHITWORTH WHITTAKER of Robin Hill Works, Oldham Builder and
Contractor, do bereby declare the nature of this invention to be as follows:-
This invention relates to improvements in the construction of ceilings and Hoors
and has for its object to render the same fireproof and waterproof whilst at the same
time giving them a hard and smooth surface or finish.
For this purpose 1 construct a fireproof and waterproof arch or ceiling, for
instance, as follows: The bricks forming the arch are covered to a suitable depth
with cement concrete and on the top of the latter is placed a layer of asphalt of
about half an inch in thickness. The asphalt is then covered with crushed granite
(or granite chippings) and cement to about the depth of two inches, thus giving a
hard and smooth surface to the floor formed above the arches.
Dated this 30th day of July 1894.
GEO. H. RAYNER,
37, Chancery Lane, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Fireproof and Waterproof Ceilings and Floors.
I, WHITWORTH WHITTAKER of Robin Hill Works, Oldham, Builder and
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 :-
This invention relates to improvements in fireproof and waterproof ceilings and
floors whereby the same are economically and efficiently constructed whilst at the
same time giving to them a smooth and hard surface or finish.
For this purpose I construct my improved ceiling and floors in the following
manner viz. In the case of a brick arch or ceiling I fill in the space above the
arches with cement concrete to a level of sufficient depth above the said arches,
and upon this I place a layer of asphalte of about half an inch in thickness.
I then cover the asphalte with crushed granite (or granite chippings) and
cement to about the depth of two inches, this latter giving a smooth hard surface
or finish.
In constructing floors I proceed in a similar manner, filling in the space between
the longitudinal and cross girders with cement concrete to a sufficient depth above
them, and upon this placing a layer of asphalte of about half an inch in thickness,
which layer of asphalte is covered with crushed granite (or granite chippings) and
cement to about the depth of two inches, the latter forming a hard smooth and
finished surface.
In the accompanying sheet of drawings illustrating my invention, Fig. 1 shows
it applied to a brick arch or ceiling, and Fig. 2 to a flooring. a, a are the bricks
forming the arch resting upon the girders 6 in the usual manner. C is the cement
concrete filled in above the arches to a level at any suitable depth or thickness above
the said arches. d is the layer of asphalte placed upon the top of the cement
concrete, and e is the covering of crushed granite (or granite chippings) and cement
giving a smooth hard surface.
In Fig. 2 representing a section of a flooring c is the cement concrete filled in

page_text: between the longitudinal and cross girders or joists b, b', d is the layer of asphalte
and e the covering of crushed granite (or granite chippings) and cement giving a
smooth hard surface to the flooring.
By means of my improved combination of material arranged in layers as
herein before described, I obtain a fire proof and waterproof ceiling or floor
of simple and economical construction, having a smooth, hard and finished
appearance.
Having now particularly described and ascertained the nature of my said inveD-
tion, and in what manner the same is to be performed, I declare that what I
claim is.-
(1.) In fireproof and waterproof ceilings and floors the combination of the
filling c of cement concrete, the layer of asphalte d and the covering of crushed
granite (or granite chippings) and cement e substantially as described and for the
purposes specified.
(2.) The improved construction of fireproof and waterproof ceilings, and floors,
substantially as described and shown in the accompanying sheet of drawings.
Dated this 1st day of September 1894.
GEO. H. RAYNER,
37, Chancery Lane, London, W.C., Agent for the Applicant.