An Improved Adjustable Support for the Scaffolding or Framing used in Building Concrete Floors and the like.
Year: 1899

page_text: Date of Application, 24th May, 1899
Complete Specification Left, 23rd Feb., 1900-Accepted, 7th Apr., 1900
An Improved Adjustable Support for the Scaffolding or Framing used
in Building Concrete Floors and the like.
I, MARC PERRET, of Belley (Ain), in the Republic of France, Contractor, do
hereby declare the nature of this invention to be as follows:--
This invention has for its object an improved adjustable device for supporting
the scaffolding or framing used in building concrete floors, and the like.
Supposing that the invention is to be used in building a concrete floor, the
improved adjustable support consists of two bars of metal fitted together side
by side and of the special section described below. Each bar is provided at
its outer end with a hook jointed to it and fixed to a suitable support upon
the beams or frames which are to carry the concrete floor.
The two bars can slide one against the other, so that their combined length
can be increased or diminished as may be required. They are kept in a straight
line, or very slightly arched, by means of hooked slides or clips, which can
slide upon them, but are open at their upper part, so as not to project
above the upper edge of the bars upon which they are fitted. In this way the
planks which form the scaffolding or frame to carry the concrete, can rest
directly upon the adjustable supports, and no packing or adjusting pieces are
required between them.
The adjustable bars may be formed of iron, steel, or other suitable metal, or
of wood, or wood and iron combined.
Iron and steel may be used of any suitable ordinary section, such as channel
iron, sash iron, angle iron, U-iron, or other suitable section capable of giving
the required result, that is to say, allowing the two bars sliding one against the
other to form the support, to be held together by hooked clips not projecting
above the upper edge of the bars. For example, flat bars may be used, two of
their flat sides being in contact, and their other or outer sides being provided
with longitudinal ribs at some distance from their upper edge. The clips are
made of such shape as to embrace and hold together the lower parts of the
bars, whilst their upper edges are turned in so as to rest upon the upper face of
the ribs, without projecting above the top edges of the bars.
The improved device described is simple, cheap, and easily made and used.
and can be readily adjusted to any desired length, and by its use time is saved
in the preparation of the scaffolding or frame for the concrete floor.
בד
11
1000

page_text: An Improved Adjustable Support for the Scaffolding or Framing used
in Building Concrete Floors and the like.
I, MARC PERRET, of Belley (Ain), in the Republic of France, Contractor, 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 drawing, that is to say:
-
This invention has for its object an improved adjustable device for supporting
the scaffolding or framing used in building concrete floors of different kinds,
and the like.
The accompanying drawing is in illustration of the invention. Figure 1
shows in elevation the improved support carried upon the casing round a beam.
Figure 2 shows an elevation of a support carried upon the beam itself with-
out the casing.
Figure 3 is a plan of the support with its hooked slides or clips.
Figure 4 is a transverse section, on a larger scale, through the supports and
one of the clips.
Supposing (as shown in the drawing) that the invention is to be used in
building a concrete floor, the improved adjustable support consists of two bars
of metal a and b, fitted together side by side and of the special section described
below (see Figure 4). Each bar is provided at its outer end with a hook c
jointed to it, by which the bars are suspended upon the beams or frames of the
concrete floor.
The two bars a and b can slide one against the other so that their com-
bined length can be increased or diminished as may be required. They are
kept in a straight line, or very slightly arched, by means of hooked slides or
clips d, which can slide upon them, but are open at their upper part, so as not
to project above the upper edge of the two bars upon which they are fitted.
In this way the planks which form the scaffolding or frame upon or in which
the suitable concrete or cement forming the floor is laid, can rest directly upon
the adjustable supports, and no packing or adjusting pieces are required
between them.
The support formed of the adjustable bars may be formed of iron, steel, or
other suitable metal, or of wood, or wood and iron combined.
Iron and steel may be used of any suitable ordinary section, such as channel
iron, sash iron, angle iron, U-iron, or other suitable section capable of giving
the required result, that is to say, allowing the two bars sliding one against the
other to form the support, to be held together by hooked clips not projecting
above the upper edge of the bars. For example, flat bars may be used, two of
their flat sides being in contact, and their other or outer sides being provided
with longitudinal ribs at some distance from their upper edge. The clips are
made of such shape as to embrace and hold together the lower parts of the
bars, whilst their upper edges are turned in so as to rest upon the upper face of
the ribs, without projecting above the top edges of the bar.
The dimensions of the support as regards the length and section of the bars
composing it will vary according to the weight to be carried and the span
which they cover.
The improved device described is simple, cheap, and easily made and used,
and can be readily adjusted to any desired length, and by its use time is saved
in the preparation of the scaffolding or frame for the concrete floor.

page_text: Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
An extensible support for carrying the scaffolding upon which concrete floors
are to be laid, the support consisting of two bars fitting and sliding against each
other, and having a projection along their outer faces, each bar having a hook
jointed to one of its ends, by which it is suspended, in combination with hooked
sliding pieces, by which the bars are held together without any part projecting
above their upper edges, substantially as described and illustrated.
DL: 001 1
1000
EDWARDS AND Co.,
Chartered Patent Agents, 65 and 66, Chancery Lane, London,
Agents for the Applicant.