IMPROVE- MENTS IN THE CONSTRUCTION OF BUILDINGS, WALLS, AND OTHER STRUC- TURES
Year: 1876

page_text: LETTERS PATENT to Edward O'Callaghan, of Croydon, in the County of
Surrey, Captain and Adjutant of Volunteers, for the Invention of "IMPROVE-
MENTS IN THE CONSTRUCTION OF BUILDINGS, WALLS, AND OTHER STRUC-
TURES"
aled the 1st September 1876, and dated the 3rd March 1876.
PROVISIONAL SPECIFICATION left by the said Edward O'Callaghan at the
Office of the Commissioners of Patents on the 3rd March 1876.
EDWARD O'CALLAGHAN, of Croydon, in the County of Surrey, Captain and
Adjutant of Volunteers. "IMPROVEMENTS IN THE CONSTRUCTION OF BUILDINGS,
WALLS, AND OTHER STRUCTURES."
This Invention relates to improvements in the method of joining or uniting
concrete slabs or other similar building materials, by which the necessity for
employing an iron, wooden, or other framework in the construction of buildings
with such slabs is obviated. For this purpose walls built or constructed in
accordance with my improvements are composed of two (or more) thicknesses of
concrete slabs (or other similar building materials) so joined or united together by
screws, bolts, or otherwise that the centre of each slab on one side of the wall shall
be opposite the junction of four slabs on the other side, thus affording great stability
combined with extreme simplicity, together with facility for alterations, enlargements,
or removal, the whole structure being incombustible.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Edward O'Callaghan in the Great Seal Patent Office on the 2nd
September 1876.
EDWARD O'CALLAGHAN, of Croydon, in the County of Surrey, Captain and
Adjutant of Volunteers. "IMPROVEMENTS IN THE CONSTRUCTION OF BUILDINGS,
WALLS, AND OTHER STRUCTURES."
This Invention relates to improvements in the method of joining or uniting
concrete slabs or other building materials, by which the necessity for employing
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page_text: an iron, wooden, or other framework in the construction of buildings with such slabs
is obviated. For this purpose walls built or constructed in accordance with my
improvements are composed of two (or more) thicknesses of concrete slabs (or other
building materials) so joined or united together by screws, bolts, or otherwise that
the centre of each slab on one side of the wall shall be opposite the junction of four
slabs on the other side, thus affording great stability combined with extreme
simplicity, together with facility for alterations, enlargements, or removal.
Figure 1 of the Drawings hereunto annexed shows a front view of part of a wall
constructed in accordance with my Invention, with a series of concrete or other slabs
arranged in two thicknesses, screwed or bolted together, the surfaces of the slabs a, a,
on one side being arranged to cover the joints, edges, or junctions of the slabs b, b, on
the opposite side; Figure 2 is a vertical section of the same; Figure 3 shows the
reverse side of Figure 1.
The angles formed by two of such walls where they meet are connected by means
of angular metal or other brackets bolted or otherwise fixed to the two walls. The
joists for supporting the floors may rest on bearings of angle iron stringers or other
suitable supports bolted or otherwise fixed to the walls.
In walls of great strength three or more of such slabs of concrete or other building
materials may be combined and bolted or otherwise secured together, and if desired
tubes or ribs may be introduced between two thicknesses of slabs to form an air
space between them for ventilation or other purposes.
In place of constructing walls of this character with two or more thicknesses of
concrete slabs the inner thickness may consist of slabs of wood, ornamental tiles of
earthenware, or of other materials suited for the lining of the interior of the building,
and the outer thickness may be of slate, tiles, or other materials suitable for the exterior
surface; thus it will be seen that walls constructed in this manner may be greatly
varied in character, according to the purpose for which the structure is required.
Having thus described the nature of my improvements, and the manner of per-
forming or carrying the same into practice, what I claim is, the improved construction
of buildings, walls, and other structures by combining and fixing a series of concrete
or other slabs or surfaces a and b of building materials together, substantially in
the manner herein-before described and represented in the Drawings hereunto
annexed.
In witness whereof, I, the said Edward O'Callaghan, have hereunto set my
hand and seal, this Thirty-first day of August, in the year of our Lord One
thousand eight hundred and seventy-six.
Witness,
J. G. TONGUE,
Patent Agent,
34, Southampton Buildings,
Chancery Lane,
W.C.
E. O'CALLAGHAN. (L.S.)