IMPROVED PLATES FOR BUILDING IN CONCRETE
Year: 1884

page_text: I BENJAMIN REYNARD No 1 Kendall's Cottages Barrow in Furness Lancashire
Plasterer do hereby declare the nature of my invention for IMPROVED PLATES FOR
BUILDING IN CONCRETE to be as follows :—
The internal and external faces of the walls are formed of thin concrete slabs, or
plates A. A. (fig 1 and 2) of convenient size, and constructed so as to break joint as
in masonry. On the interior faces of the slabs, dovetail grooves are forined, into
which transverse bond slabs B. B. are fitted; as each course is laid newly mixed
concrete is filled in between the slabs, which by being worked into tho dovetail
niches C. C., and through the holes D. D. in the vertical bond slabs, thoroughly
bonds the faces together, and forms a solid wall.
Under my invention walls can be built of concrete without any framing or
propping, and no rendering or plastering is required on either faco after orection.
The slabs or plates can be made to imitate any class of masonry, and all mouldings,
strings, cornices, window and door jambs, & can be worked upon the plates.
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page_text: I, BENJAMIN REYNARD of 1 Kendalls' Cottages Barrow in Furness Lancashire
do hereby declare the nature of my invention for IMPROVED PLATES FOR BUILDING
IN CONCRETE and in what manner the-same is to be performed, to be particularly
described and ascertained in and by the following statement :-
The object of this Invention, is that by the combination of Concrete plates or
Slabs specially formed, as described, walls can be built without the aid of any
Temporary Support, and also of such a finished face, that no Rendering or Plastering
is required.
The face or faces of the walls are formed of thin Concrete Slabs, or plates,
previously cast in Moulds, to a suitable size, and set, so as to break joint, as in
Masonry or Brick walls.
On the interior face of the Slabs, Dovetailed grooves are formed, in the casting
of the slabs, into which, transverse bond Slabs are fitted, these bond Slabs, having
their ends formed, to fit into the Dovetailed grooves, 'likewise by casting in
Moulds.
As each course in fixed in position newly mixed Concrete, which may be formed
of a much smaller proportion of Cement, is filled in, making the bulk of the wall.
Additional dovetailed grooves, may also be formed on the inside face of Slabs,
and notches in transverse slabs, which when filled with the backing Concrete,
secure a better bond between the Slabs and backing and thus form a solid wall,
when the backing sets.
"
My Invention will be found most servicable in Building Dock Walls, Bridge
Abutments, or Retaining Walls, especially where Tidal Waters, impede the ordinary
process of Building, as many courses of the face Slabs, may be fixed in position
during low water, & then the backing of Concrete filled in at leisure.
The exposed face of Slabs may be colored in the process of Casting, or Cast, so
as to represent any kind of Tooled Masonry if desired.
The following is the description of the Drawing, which shews two applications
of my Invention.
Figs. 1 and 3 are plans of alternate courses of an ordinary House wall A. A being
the face Slabs, B. B. the transverse Slabs, which break joint (bed) with face Slabs,
as shewn in Fig. 2. the vertical section of same wall. C. C. are the Dovetail
grooves, or niches in face Slabs, and D. D. the notches in transverse Slabs, formed
for securing a better bond between backing Concrete and Slabs. Fig. 4 shews
an elevation of wall.. Fig 5. 6 and 7 are plan, vertical section and elevation
respectively of a Retaining or Dock Wall, in which the back part of transverse
Slab is shewn widened out. Fig. 8 is a plan of Mould for transverse Slabs, which
is shewn to contain several Moulds in one trough Figs. 9 and 10 is plan and
elevation of Moulds for face Slabs, shewing a method of forming Dovetail, by
means of three pieces of hardwood F. E. E. made wedge shaped longitudinally,
which are easily removed after Slab has set by knocking out centre wedge F.
without injuring the Dovetail, ·

page_text: Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is
The form of, and combination of, Concrete Slabs, substantially as and for the
nurnoses described