Improvements in Swimming-baths, Water-tanks, and Coffer-dams.
Year: 1890

page_text: Date of Application, 19th Mar., 1890
Complete Specification Left, 14th June, 1890-Accepted. 18th Oct., 1890
PROVISIONAL SPECIFICATION.
Improvements in Swimming-baths, Water-tanks, and Coffer-dams.
I, WILLIAM SMITH, Civil Engineer, Harbour Buildings, 15 Regent Quay, Aberdeen,
Scotland, do hereby declare the nature of this invention to be as follows:-
This invention consists in the construction of a framework of timber upon the
surface of, or sheet piles driven into the ground which is previously levelled and
covered with a layer of sawdust, clay, or similar soft or elastic material well rammed
and consolidated. The ground so prepared and the timber framework round the sides
are covered and lined with a watertight lining of watertight or india rubber proofed
canvas, the pressure of the water upon which is balanced by the resistance of the
prepared surface of the ground and the timber framework. The watertight lining
may be adapted and fitted to an ordinary apartment or hall to form a temporary
swimming bath.
COMPLETE SPECIFICATION.
Improvements in Swimming-baths, Water-tanks, and Coffer-dams.
I, WILLIAM SMITH, Civil Engineer, Harbour Buildings, Regent Quay, Aberdeen
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 :-
This invention consists in the construction of a framework of timber upon the
surface of, or sheet piles driven into, the ground which is previously lovelled and
covered with a layer of sawdust, clay, or similar soft or elastic material well rammed
and consolidated. The ground so prepared and the timber framework round the sides
are covered and lined with a watertight lining of watertight or india rubber proofed
canvas, the pressure of the water upon which is balanced by the resistance of the
prepared surface of the ground and the timber framework. The watertight lining
may be adapted and fitted to an ordinary apartment or ball to form a temporary
swimming bath.
The invention is illustrated by reference to sheet No. 1. Figure 1 shews the
framework of a swimming bath A A lined with timber boards B B strengthened by
timber walings CO as required to provide against the pressure of the water in the
bath D. The surface of the ground EE is levelled and covered with a layer of
sawdust, clay or similar soft and elastic material F F well rammed and consolidated.
The ground so prepared and the timber work round the sides are covered and lined
with a watertight lining of watertight or india rubber proofed canvas G G, the
pressure of the water D upon which is balanced by the resistance of the prepared
surface of the ground E F and the timber framework A B C.
Figure 2 shews a plan of the bath D surrounded by the timber framework A A and
lined with a watertight lining of watertight or india rubber proofed canvas G G.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, 1 declare that what
I claim is:
1. The formation of swimming baths, tanks, and pile or coffer dams specially with

page_text: a view to being rendered watertight by a watertight lining of watertight or india
rubber proofed canvas as above described.
2. The lining and rendering watertight of swimming baths, tanks and pile or
coffer dams by means of a watertight lining of watertight or india rubber proofed
canvas as above described.
'
WM. SMITH.