An Improved Bank or Quay Protector.
Year: 1898

page_text: Date of Application, 17th May, 1898-Accepted, 18th June, 1898
COMPLETE SPECIFICATION.
An Improved Bank or Quay Protector.
We, WILHELM FITZNER and PAUL JANKE, both of Laurahütte, Upper Silesia, in the
Empire of Germany, Commercial Adviser and Marine Architect respectively, 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 relates to a bank or quay protector, the manufacture of which offers
no greater difficulty than that of one made of wood whilst it almost attains the
durability of a solid quay or embankment-wall. This bank protector is entirely
composed of uniform steel tubes provided on one side with a channel like depression
suited to the circular section of the tubes, in which depression the next tube engages
with a full portion of its surface so that in this way a sort of tongueing results which
only requires the making of grooves of round section, whilst the wall of the tube
itself acts as a tongue.
A form of construction of this iron bank protector where steel tubes of originally
circular section are used is shown in the accompanying drawings, in which―
Figure 1 is an elevation of the bank protector;
Figure 2 a vertical section, and
Figure 3 a plan view.
The bank protector is formed of uniform steel tubes a which are closed below and
extend into a point or bevelled edge at the bottom. The tubes may be circular in
section or if desired have a more or less elliptical section. In each tube a flat
rounded channel b is rolled on one side along its entire length.
The shape or section of this channel is exactly fitted to the full section of the tube,
or where elliptical tubes are used it is fitted to the section of the part of the tube lying
diametrically opposite the channel.
After the ground has been suitably bored in advance the tubes are gently rammed
in, care being however taken in doing this that each successive tube engages as closely
as possible with the tubular depression b of the previous tube, in order that the
pressure of the soil of the backing (rear filling) is equally distributed over all the
tubes.
The tubes are finally filled with cement so that the whole attains a solidity aud
durability akin to that of bank masonry (walling). The filling of soil may be simply
shovelled in against the rear side of the wall formed of the tubes after the cement
filling has set and the whole protector has become solid. The tubes may be rammed
in vertically or in an inclined position according to requirements.
Haying 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 :-
A bank protector of steel tubes (a) rammed in and afterwards filled with cement,
which tubes with the object of producing a kind of tongue and grooving are provided

page_text: on the side facing the next tube with a channel like depression extending along the
whole length of the tube having a section rounded to correspond with that of the
tube, in which depression the next tube engages, substantially as bereinbefore
described.
Dated this 16th day of May 1898.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicants.