An Appliance for Keeping the Cavity of Hollow Walls Clear of Mortar Droppings and other substances During the Course of Erection.
Year: 1892

page_text: Date of Application, 26th Oct., 1892
Complete Specification Left, 4th Feb., 1893-Accepted, 1st Apr., 1893
PROVISIONAL SPECIFICATION.
An Appliance for Keeping the Cavity of Hollow Walls Clear of
Mortar Droppings and other substances During the Course of
Erection.
EDWARD NORTH 136 St. Andrews Road Southsea Portsmouth, Surveyor, do.
hereby declare the nature of this invention to be as follows :-
It consists of two strips of wood or other material connected by a strip of canvas
or other suitable material fastened to the same, the strips will be wedged back
against the opposite faces of the cavity, the canvas will then drop down and form a
sack or receptacle into which the mortar droppings and other substances will be
received, and at the proper time lifted out of the cavity and emptied ready for
future use. The appliance will be held in position in the cavity by means of wedges.
of wood or any other suitable substance.
Dated thin with 1
1003
COMPLETE SPECIFICATION.
An Appliance for Keeping the Cavity of Hollow Walls Clear of
Mortar Droppings and other substances During the Course of
Erection.
1, EDWARD NORTH, of 136 St. Andrews Road, Southsea, Portsmouth, in the
County of Hants, Surveyor, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer
tained in and by the following statement :-
My invention consists of an appliance for keeping the cavities in hollow walls
clear of mortar droppings and other substances during the building thereof, and it
consists of two strips of wood or other material connected by a strip of canvas or
other suitable material fastened thereto in any suitable manner. In use, the strips.
are wedged apart against the opposite faces of the cavity, the canvas forming a.
sack or receptacle, into which the droppings will be received and at the proper time.
lifted out of the cavity and emptied ready for further use.
In order that my invention may be fully understood I will more particularly
describe it making reference to the accompanying drawing, in which
Figure 1 is a view in perspective of my invention, and
Figure 2 is a view in transverse section-ou an enlarged scale-showing its.
application.
Similar parts are marked with like letters of reference throughout the views.
Referring to the drawing, A, A, designate the strips of wood or other suitable.
material which are preferably bevelled off towards the top edge. B designates the
strip of canvas or other fabric constituting the sack or receptacle which is attached
to the bottom edge of the strips A, A, in any suitable manner. To the strips A, A,.
are also attached lengths of cord C, C, to form handles for lifting the appliance as
the building of the wall proceeds.
To fix the appliance in position it is wedged apart against the inner faces of the
two parts of the wall X, X, by means of blocks or wedges D, D, as shown by
Figure 2, and to remove it to empty out the accumulated mortar droppings etc. the
blocks or wedges D, D, are removed and the appliance lifted out by the cords C, C,
which causes the strips A, A, to come together and thus allow the appliance to be.
drawn up or out clear of the sides of the cavity.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
:-
The improved appliance for keeping the cavity of hollow walls clear of mortar
droppings and other substances during the course of building, as hereinbefore
described and illustrated by the accompanying drawing.
Dated this 4th day of February 1893
ROBT. ED. PHILLIPS, M.I.M.E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.