IMPROVEMENTS IN THE CONSTRUCTION OF BUILDINGS, AND IN THE MATERIALS EMPLOYED THEREFOR
Year: 1874

page_text: LETTERS PATENT to Charles Denton Abel, of No. 20, Southampton
Buildings, Chancery Lane, in the County of Middlesex, for the
Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF BUILDINGS, AND
IN THE MATERIALS EMPLOYED THEREFOR."-A communication from
abroad by Dr. E. Jaehne, of Berthelsdorf, in the Kingdom of
Prussia.
COMPLETE SPECIFICATION filed by the said Charles Denton Abel at
the Office of the Commissioners of Patents, with his Petition and
Declaration, on the 7th May 1874, pursuant to the 9th Section of
the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
DENTON ABEL, of No. 20, Southampton Buildings, Chancery Lane, in
the County of Middlesex, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN
THE CONSTRUCTION OF BUILDINGS, AND IN THE MATERIALS EMPLOYED THEREFOR,"
and have petitioned Her Majesty to grant unto me, my executors,

page_text: top face, to receive the projections of one or more of the bricks shewn
at Fig. 5, according to the thickness of the walls. They have also two
recessed faces b, b, and two faces c, c, with projections.
The walls of the building are strengthened and tied together at about
the middle of each story by the interposition of a metal plate r, Figs. 1
and 2, between two courses of bricks, which plate is shewn at Fig. 10, it
being of a trough shape to fit the hollows and projections of the bricks.
At the door openings these plates are provided with screw bolts, as
shewn at X, X, Figs. 1 and 3, by means of which the door frames are
secured thereto. They also serve to tie together the outer walls and the
partition walls.
:
The door and window posts are formed of channel iron, shown at
Fig. 11, while the lintels are formed of similar iron of a stronger section,
shewn at Fig. 12, for supporting the courses of brickwork above them,
as shewn at 's, Fig. 1.
The floors of the building, as also the roof, are constructed of bricks
similar to those above described, fitted into a framing constructed as
follows:-Angle iron plates A are fitted to the external walls, and
secured to each other at the corners by screw bolts, as shewn at f,
Fig. 1, and at Figs. 13 and 13ª. To these plates are secured longitudinal
and transverse wrought-iron girders B, which may be of railway rails or
of a similar section, and which are made to intersect each other, as
shewn at Fig. 14, and are secured to the plates A by bolts g, as shewn
at Fig. 15. Transverse tie plates C are also provided, which are secured
to the plates A by means of forked screwed ends embracing the plate, as
shewn at h, Fig. 16, and provided with an external plate and screw nuts.
These plates have apertures in them through which the girders B pass,
and they are made of a trough-shaped section, so as to fit between the
joints of the bricks forming the floor or roof, which are thus tied firmly
together and supported by the several parts A, B, and C.
The bricks for the floors and roof are shewn at Figs. 17, 17º,
and 18, 18. The outer bricks of the floor, shewn at. Figs. 17, and 17",
are fitted between the bricks of the walls, and are formed with a recess a
on the topside, and a projection 6 on the under side, corresponding with
the projections and recesses of the wall bricks. They have two recessed
sides c, c, and two sides with projections d, d. The outer recessed side c.
serves to receive the angle iron plate A, as shewn at Fig. 3.

page_text: Second. Constructing floors and roof of bricks, such as are referred to
above, retained in position by means of wall plates A, girders B, and tie
rods C, arranged and operating substantially as herein described.
In witness whereof; I, the said Charles Denton Abel, have hereunto
set my hand and seal, this Seventh day of May, in the year of
our Lord One thousand eight hundred and seventy-four.