Improvements in the Manufacture of Concrete Fire-proof Building Materials, and Parts of Buildings, Safes, Strong Rooms, and other Analogous Fire-proof Structures and Receptacles.
Year: 1885

page_text: Improvements in the Manufacture of Concrete Fire-proof
Building Materials, and Parts of Buildings, Safes, Strong
Rooms, and other Analogous Fire-proof Structures and
Receptacles.
We ROBERT BRISTOW LEE of 8 Deansgate Manchester in the County of
Lancaster Iron Fence Manufacturer and JAMES HODGSON of Theatre Street
Ulverston in the same County, Colliery Agent do hereby declare the nature of
this Invention to be as follows:-
This Invention has for its object to give increased strength and stability to the
concrete portions of buildings which are intended to be fire proof. As at present
constructed croncrete slabs, blocks or other parts which are intended to carry
weight or resist strains require to be made of considerable weight and thickness.
The object of our invention is to introduce a novel element of strength into such
concrete parts whereby their weight may be diminished and the strength increased.
This we effect by introducing interwoven or connected metallic members, strands,
network, structures or skeletons into the said concrete parts thereby imparting a
fibrous tenacity to the concrete which is non-existent when concrete alone is used.
The metallic skeleton or framework may be made from wire, tubes, angle, channel,
flat or other shaped iron, steel or other metal, interwoven, twisted, crossed or
connected together so as to form a mesh, trellis-work or ramification around which
the concrete is run or pressed when in a fluid or semi-fluid or soft condition so
that the finished slab, block or part is tied together and supported by a metallic
skeleton which imparts great additional strength and cohesion to the concrete.
Two or more skeletons either isolated or connected may be introduced into a slab,
block or part, of concrete. Our invention is applicable in the manufacture of all
parts of fire-proof buildings such as floors, roofing, walls doors and other parts and
can also be used in the construction, coating or protection of safes, strong rooms
and other analogous structures and receptacles.
Thin on day of November 1905
DUTTON & FULTON,
Agents.

page_text: Improvements in the Manufacture of Concrete Fire-proof
Building Materials, and Parts of Buildings, Safes, Strong
Rooms, and other Analogous Fire-proof Structures and
Receptacles.
We ROBERT BRISTOW LEE of 8 Deansgate Manchester in the County of
Lancaster Iron Fence Manufacturer and JAMES HODGSON of Theatre Street
Ulverston in the same County Colliery 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 and accompanying
drawings:-
This Invention has for its object to give increased strength and stability to the
concrete portions of buildings which are intended to be fire-proof. As at present
constructed concrete slabs, blocks or other parts which are intended to carry
weight or resist strains require to be made of considerable weight and thickness.
The object of our invention is to strengthen such concrete parts whereby their
weight may be diminished and their strength increased. This we effect by intro-
ducing interwoven or connected metallic members, strands, structures or skeletons
into the said concrete parts thereby imparting a fibrous tenacity to the concrete
which is non-existent when concrete alone is used. Our invention is applicable
in the manufacture of all parts of fire-proof buildings such as floors, roofing,
walls, doors and other parts and can also be used in the construction, coating or
protection of safes, strong rooms and other analogeous structures and receptacles.
And in order that our said Invention may be properly understood we will now
proceed more particularly to describe the same, reference being had to the annexed
sheet of drawings and to the letters and figures marked thereon to be as follows.
Fig. 1 of the said drawings is a perspective view of a slab A: from which a
portion of the front nearest the spectator is supposed to be broken away so as to
show the metallic skeleton b. the members of which are represented as projecting
from the frustrated block. In manufacturing the block A we first provide the
skeleton b. which is composed of lengths of channel steel or it may be of iron
the lengths being laid across each other so as to form a trellis work as shown.
The said lengths of channel steel may be secured or rivetted at the crossings if
desired but we do not consider this to be necessary as the surrounding concrete
serves to hold the metallic members in their places. The trellis work skeleton b.
thus formed is next surrounded by concrete or other similar fire-resisting material
or compound. Any suitable method might be employed in the manufacture of the
said blocks for example the skeleton b. might be suspended in a mould into which
the concrete when in a fluid or semi-fluid or soft condition might be run or pressed
so that the finished slab or block when lifted from the mould contains a strength-
ening skeleton which imparts great additional resistance and cohesion to the
concrete. If desired two or more such skeletons b. might be introduced into
the slab A. If a slab or block so manufactured is intended to be used in a
part of a building or other situation where appearance is an object we may
coat the exposed surface of such a slab with a finer grade of concrete so as to

page_text: be susceptible of decoration or ornamental treatment or the said surface coating
might consist of a mixture of variegated stones and cements or compounds which
would give a decorative or ornamental or imitative effect when the said surface
was ground or polished and finished as is well understood. Fig. 2 of the drawings
is an elevation of a fire-proof door B. manufactured in accordance with our inven-
tion. In Fig. 2 a part of the door is shown broken away so as to uncover the
metallic trellis work skeleton b. of channel steel. Fig. 3 is a view of the edge of
the door, the upper part C. of the view being a pure section of the door and the
middle portion D. showing the concrete removed so as to expose the face of the
frame c. within which the channel steel skeleton b. is laid. The mode of manu-
facturing the door is identical with that employed to produce the slab described
with reference to Fig. 1. In hanging such a door we prefer to provide a fire-proof
door frame made from a combination of metal and concrete and fitting the door
accurately. The surface of such a door might be moulded with paneling or be
decorated in any desired manner. Fig. 4 is a section of a fire proof floor made
from slabs A. manufactured in accordance with our invention. The illustration is
given for the purpose of showing the method in which we prefer to unite the
various slabs composing a floor. Dovetail recesses d. are formed at the joints and are
filled with a suitable cement which binds the slabs together and prevents them from
shifting. The slabs A. are shown supported by a girder E. made of a combination
of metal and concrete the internal steel or iron skeleton or trellis work frame e.
being coated and lined with concrete. In manufacturing the aforesaid slabs,
blocks and parts more than one metallic skeleton or structure may be employed
and the said skeletons may or may not be connected by ties or staples. Our
Invention may also be used in the manufacture and construction of safes, strong-
rooms and other analogous structures and receptacles.
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:
•
In the manufacture of concrete fire-proof building materials and parts of build-
ings, slabs, blocks, doors, floors, girders and the like introducing into the body of
Buch slabs, blocks and parts metallic trellis work structures or skeletons composed
of lengths of flat, channel, angle or other steel or iron for the purpose of giving
greater strength and cohesion to the said concrete blocks, slabs and parts, sub-
stantially as hereinbefore described and shown.
Dated this TOLL
ג
T1000
DUTTON & FULTON,
Agents.