Improvements in connection with the Erection of Scaffolding.
Year: 1899

page_text: Date of Application, 21st July, 1899-Accepted, 23rd Sept., 1899
0
COMPLETE SPECIFICATION.
Improvements in connection with the Erection of Scaffolding.
I, RICHARD JAMES BUNGARD, of 1, Montrose Villas, Primrose Road, Leyton, in
the County of Essex, Master Mariner, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement:--
in
use.
a
My invention relates to improvements in connection with the erection of
scaffolding and the object is to render unnecessary the use of ropes in attaching
the poles to one another. In carrying my invention into effect I proceed in or
in about the following manner making reference to the accompanying drawings
in which Fig. 1 is a front view of the appliance for use in holding two poles at
a side view
an angle with one another, Fig. 2 a plan and Fig. 3
is
Fig. 4
front view, Fig. 5
showing the appliance
a side view and Fig. 6 a plan of the appliance for attaching one pole to
another to obtain greater length or height. Fig. 7 is an isometric view of a
modified part of what is shown in Figs. 4, 5, & 6. Fig. 8 is a plan and Fig. 9
an end view of a modification applicable to both of the above appliances. Refer-
ring to the attachment of one pole to another, as in the case of one being vertical
and the other horizontal, I provide a chain a or several such chains, having two
other chains b at right angles thereto. At each free end of the chains b are
The clips are attached to
clips each consisting of a curved part e and an ear d.
the chain ends by links passing through holes e and the ears d are bored and
screw threaded to receive the bolts f. The bolt hole through one of each pair
of the clips is somewhat oval in shape so as to admit of the amount of movement
In use the chain
necessary for tightening up the parts as hereinafter mentioned.
is clipped to one of the poles by one of the pairs of clips as shown in Fig. 2 and
the other pole h placed at the required angle. The chains a are then passed
round the pole h and the other pair of clips fastened round the first mentioned
pole at the proper distance above the other pair of clips and the oval hole already
referred to facilitates the drawing of the parts together. In attaching one pole
to another so as to increase the length or height I employ a somewhat different
arrangement consisting of angle pieces having ears j, to which are attached the
ends of the chains k. A screw bolt fl passes through the parts i so as to hold
them round the poles. In use chains k are passed round the poles h² and h³ and
the parts being brought together are secured by the bolt f¹, one of the holes of
which is made oval as in the former arrangement. In Fig. 7 the parts i and jare
shown in modified form.
In both the above appliances more than one bolt for fl may be used.
Instead of having an oval hole in one of each of the parts d and i I sometimes
provide an open slot such as Fig. 8, in which case one end of the bolt for f¹ is
pivotted within an opening in its respective part d or i and the other end of
for f has a nut m for tightening up the several parts so as to hold the chains
mound the poles.

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:
1. For use in attaching one scaffold pole to another at an angle thereto, an
appliance consisting essentially of two chains and screw bolt head clips to embrace
one pole at a convenient space apart and an intermediate chain or intermediate
chains connecting the clip chains and holding the second scaffold pole sub-
stantially as described in the above specification and exemplified by the accom-
panying drawings.
2. For use in attaching one scaffold pole, to another so as to extend the length
or height, an appliance consisting essentially of two parallelly placed chains
each pair of the free ends of which is attached to an angle piece having ears and a
bolt or bolts by which the chains can be made to embrace the two poles, the whole
substantially as described in the above specification andexemplified by the
accompanying drawings.
3. As new articles of commerce the combinations of chains, clips and bolts
substantially as described in the above specification and exemplified by the
accompanying drawings and together forming improved appliances for use in
the erection of scaffolding.
Dated this 14th day of July 1899
HUGHES & YOUNG,
23, Coleman Street, E.C., Agents.