Combined Fireproof Floor and Ceiling.
Year: 1894

page_text: Date of Application, 14th Aug., 1894
Complete Specification Left, 13th May, 1895-4ccepted, 14th Aug., 1895
Combined Fireproof Floor and Ceiling.
JAMES SHEPPARD Trayshill Hornsey Lane London N. Surveyor FREDERICK
DASHWOOD Landisfarne Hersham Road Walton on Thames Clerk of Works do
hereby declare the nature of this invention to be as follows:-
Tiles or bricks formed with concrete cement artificial stone terra cotta clay or
other similar non conducting incombustible material fire clay being used by
preference are moulded in such way as to be capable of resting upon and completely
encasing the lower portion and flanges of iron or steel girders joist and bars used
for the main supports of the floor and ceiling, the upper face of the tiles or bricks
being moulded with dovetailed channels forming a secure key for suitable concrete
which is filled in over them to any required thickness so as to completely encase the
upper portion of all iron or other supports. The tiles or bricks to be of any desired
size or shape the lower face being ornamented to any extent desired in relief or in
coloured glaze giving a finished ceiling, or the underside of the tiles or bricks, or
the bricks or tiles can be scored to receive the usual plastering.
This invention it is claimed secures perfect protection for all metal or other
material used in the construction of the floor against fire and heat and as the tiles
or bricks can be placed in position without centering or other temporary support
efficiency with economy is obtained in a manner not before used by any other person
or persons to the best of our knowledge and belief.
Dated this Fourth day of August. 1894
JAS. SHEPPARD.
FREDERICK DASHWOOD.
сощющей горх
JAMES SHEPPARD Trayshill Hornsey Lane London N. Surveyor FREDERICK
DASHWOOD Lindisfarne Hersham Road Walton on Thames Surrey Clerk of
Works 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 and connected with fire proof floors and
ceilings being also available for other structures and has for its object the secure
protection against the action of heat of all metal work required for the support of
the structure combined with the provision of finished ceilings or other surfaces.
In carrying out this invention we use tiles or bricks composed of any suitable
non-conducting and incombustible material fire clay being used by preference.
Edges of the tiles or bricks are moulded with grooves one limb of each groove
being made slightly longer than the other so that when placed in position the tiles
or bricks rest upon and encase all metal bars joists or girders used for the support
of the structure.

page_text: One face of the tiles or bricks is moulded with dovetailed channels by which they
are keyed to concrete or other suitable material which is filled into and about these
channels to any desired thickness.
The opposite face of the tiles or bricks is left plain scored or otherwise prepared
for plastering or finished with a glazed surface or ornamented in relief or colour in
any way desired.
The tiles or bricks are made cellular or solid as may be desired.
Three forms of the tiles or bricks herein referred to as A. B. C are used for
floors and ceilings the tiles or bricks A with or without the tiles or bricks B and C
being also used for doors partitions walls facings and other similar purposes.
In fixing the tiles or bricks for floors and ceilings tee or other shaped bars (c)
having their ends slightly set are placed on the flanges of metal joists (a) the joists
and tee bars being spaced to suit the tiles or bricks which may be of any desired
size.
The grooves (6 d) in the tiles or bricks are placed so as to engage the flanges of
joists tee or other shaped bars by which they are held in position without temporary
support.
For doors partitions walls or other similar structures metal supports (a) of any
suitable section are placed vertically. In the case of doors the outer edges of the
tiles or bricks are enclosed in a metal frame of any suitable section and horizontal
bars or rods are fixed between the sides of the frame through the joints of the tiles
or bricks holes being drilled in the vertical supports for this purpose, the vertical
and horizontal bars are bolted or otherwise secured to the frame.
Concrete or other suitable material is filled into and about the dovetailed
channels (e) uniting the whole into one solid mass.
For further and fuller explaination and description of our invention reference is
made to the accompanying diagrams in which
Fig. 1 is a view of the floor and ceiling tiles in position as seen from above.
Fig. 2 is a plan of the floor and ceiling tiles as seen from below.
Fig. 3 is a cross section through a main girder indicating channel irons fixed to
the lower flanges with side elevation of joists shewing the mode of encasing metal
work with the tiles or bricks.
Fig. 4 shews the form of tile or brick B.
Fig. 5 shews the form of tile or brick C.
Fig. 6 is a cross section through tiles or bricks B and C placed in position
indicating the grooves for encasing flanges of joists and tee bars.
Fig. 7 is a
position.
cross section through tiles or bricks A indicating tee bar in
Fig. 8 shews one side of tile or brick B in elevation.
Fig. 9 shews the grooved edge of tile or brick A in elevation.
Fig. 10 is a plan of part of a door partition or similar structure formed with tiles
or bricks A.
The corresponding parts shewn in the several figures are in each case similarly
lettered as follows
A. B. C. the three different forms of tiles or bricks used.
a metal joists or corresponding supports placed horizontally or vertically.
b
grooves for tee bars or bars of other section.
c tee bars.
d grooves for joists.
e dovetailed channels.
'main girder.
g channel irons.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
1. In the construction of fireproof flcors and ceilings the combination of tiles or

page_text: bricks A. B. C having grooves and channels b d e with metal supports and concrete
or other suitable filling for the purposes specified and substantially as described and
as illustrated in the accompanying diagrams.
2. In the construction of fire proof doors partitions walls or other similar
structures the combination of bricks or tiles A with or without tiles or bricks B
and C having grooves and chaunels b d e with metal supports and concrete or other
suitable filling for the purposes specified and substantially as described and as
illustrated in the accompanying diagrams.
Dated this Thirteenth day of May 1895.
JAS. SHEPPARD.
FREDK. DASHWOOD.