An Improved Scaffolding for the use of House Painters and Decorators, and for Analogous Purposes.
Year: 1889

page_text: Date of Application, 3rd May, 1889
Complete Specification Left, 1st Feb., 1890-Accepted, 3rd May, 1890
PROVISIONAL SPECIFICATION.
An Improved Scaffolding for the use of House Painters and
Decorators, and for Analogous Purposes.
We, OSWALD DE HAER and JOHANN DE HAER, Manufacturers, of Dusseldorf,
Germany, do hereby aeclare the nature of this invention to be as follows.-
-
Our invention has for its object to construct a scaffolding which will facilitate the
painting and decoration of walls in the interior of buildings.
The scaffolding chiefly comprises a system of vertical posts and horizontal beams or
bars, connected together by caps or shoes and provided with short stays.
The posts are preferably made of wood, rectangular in cross section and provided
with a series of bolt holes
The cross beams or bars are also made of wood and armed at their ends with iron
shoes each of which has a pair of lateral projections or lugs adapted to rest in
recesses of the caps.
The iron caps are mounted on the vertical posts and provided with lateral socket
or saddle pieces to receive and support the contiguous ends of the cross beams which
form right angles to each other.
The posts which are situated next to the wall are kept at the required distance
from the same by means of short horizontal stays which are secured to the caps at
a variable length by means of adjustable screws, each of which passes through a
downward extension or arın formed on the nearest saddle piece of the cap.
According to the size of the room, the length of the short horizontal or auxiliary
stays is increased or diminished, so that the whole scaffolding forms a rectangular
framework held in position by the walls.
The caps may be secured to the posts at any desired height by means of bolts
passing through any of the bolt holes mentioned above.
By attaching to the framework an additional cross beam and posts either on one
side only or on two contiguous sides at right angles to each other, the scaffolding
may be made to fit a larger room. For very high rooms each of the posts may be
composed of two lengths connected with each other by a cap and provided with an
additional cross beam.
Dated this 3rd day of May 1889
FAIRFAX & WETTER,
433, Strand, London, Agents.
COMPLETE SPECIFICATION.
An Improved Scaffolding for the use of House Painters and
Decorators, and for Analogous Purposes.
We, OSWALD DE HAER and JOHANN DE HAER, Manufacturers, of Dusseldorf,
Germany, 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 :-
Our invention has for its object, to construct a scaffolding, which will facilitate the
painting and decoration of walls in the interior of buildings.
The scaffolding chiefly comprises a system of vertical posts and horizontal beams
or bars connected together by special caps or sleeves and provided with short stays.
In the further description reference will be made to the accompanying drawings,
of which Figs. 1 to 3 illustrate an iron coupling or cap embodying our invention,
while Figs.
to 8, show on a smaller scale the method of forming a scaffolding by
means of the said shoes.

page_text: The caps or connecting pieces are of rectangular shape and provided on the four
sides with shoes b having at the top vertical recesses or notches c as shown. From
two sides of the sleeves extend downward plates or hooks d which contain clamping
screws e.
A horizontal perforation of the sleeve serves to receive a bolt f, which may be
passed through holes formed in the posts at different heights, in order to fix or hold
the connecting pieces.
The shoes b receive the crossbeams, which are simply laid on in their respective
places and will then remain in position, because the plates g fixed to the crossbeams
enter the recesses while at the bottom the crossbeam is supported by the cross
rib b¹ of the shoe. Instead of shoes b and plates g, hooks and eyelets may be used.
Fig. 4 shows the plate g in plan, and Fig. 5 in end elevation.
The plates or hooks d serve to receive the auxiliary supports or stays which
maintain the position of the scaffolding relatively to the wall, (as shown by Figs. 6
to 8). These auxiliary stays may be ordinary laths without prescribed lengths,
because they can be fixed at the required length by means of the clamping screws.
As shown by Fig. 6, the sleeve or connecting piece is constructed in such a manner
that two posts or scaffoldings may be mounted one over the other. In this case the
sleeve is secured to the lower post at such a height, that the sleeve projects above the
lower post and receives also the upper post.
Consequently, the iron connecting piece or cap enables one to erect scaffolding for
rooms of various heights and sizes, with ease and dispatch, without requiring the
timber to be previously cut to a given size, because the auxiliary stays held by the
plates d can be adjusted at pleasure. Furthermore the scaffolding may be easily
placed high or low, owing to the use of the specially constructed connecting pieces.
In erecting the apparatus on uneven ground, such as a staircase, some of the posts
may be composed of two pieces bolted together, to increase the length, as shown by
Fig. 8.
Having now particularly described our invention, and in what manner the same is
to be performed, we claim :-
-A scaffolding for house-painters, decorators and analogous uses, composed of posts,
beams and auxiliary stays, connected with each other by means of iron caps or
couplings having shoes b or similar means for holding the suitably armed cross-beams
and plates or hooks d with clamping screws for holding the auxiliary stays, substantially
as described.
Dated thia 31st day of Jonne 1800