Year: 1894

page_text: Date of Application, 11th Jan., 1894
Complete Specification Lelt, 11th Oct., 1894-Accepted, 17th Nov., 1894
A communication to me from ERNST OTTO POETZSCH, of Hilbersdorf, near
Chemnitz, in the Kingdom of Saxony, Germany, Stone Cutter and Proprietor
of Quarries.
I, EDMUND EDWARDS, of the Firm of Edwards and Co., Patent Agents and
Engineers, of 35, Southampton Buildings, Chancery Lane, in the County of
Middlesex, do hereby declare the nature of this invention to be as follows :-
In making a good pavement of natural stones it is of great importance that the
stones employed should be of the same height without their side faces being
reduced, while the upper and lower surface should be parallel. The production of
such stones, having in most cases prismatic or cubical form, is attended with great
expense and is moreover not possible in cases where the matorial cannot be split.
A further inconvenience consists in the fact that such full sized stones are very
expensive in carriage.
To obviate these inconveniences different substitutes for the natural stones have
sometimes hitherto been employed. These substitutes are of regular form but
they do not possess the necessary hardness and resistance against exposure to the
weather, or their surface is liable to become too smooth by use.
The object of the present invention is to combine the advantages of the natural
stone with the possibility of moulding the artificial stone, and it consists in making
a compound stone for paving, the head or upper part of which consists of natural
stone, whilst the sides and the lower face are formed of artificial stone of regular
shape, in which the upper stone is embedded.
Natural stones for pavements, of any height and of the required size, the beads
of which have received the desired form by working, and the side faces of which
are wrought more or less perpendicularly to the head face but are roughly
undercut below, are completed to the full size of stones of prismatic and cubical
form and of any height, by forming a foundation of artificial stone under each, by
pouring, pressing, and the like. In order to reduce the expense of carriage, this
work may be done at the place where the stones are to be employed, and in the
same manner two or more stones may be combined to form a single block.
Dated this 11th day of January 1894.
EDWARDS & Co.,
35, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Stones for Paving.
A communication to me from ERNST OTTO POETZSCH, of Hilbersdorf, near
Chemnitz, in the Kingdom of Saxony, Germany, Stone Cutter and Proprietor
of Quarries.
I, EDMUND EDWARDS, of the Firm of Edwards and Co., Patent Agents and
Engineers, of 65 and 66, Chancery Lane, in the County of Middlesex, do hereby
declare the nature of this invention, and in what manner the same is to be performed,
to be particularly described in and by the following statement and accompanying
drawing, that is to say :-
In making a good pavement of natural stones, it is of great importance that the

page_text: stones employed should be of the same height without their side faces being
reduced, whilst the upper and lower surface should be parallel. The production of
such stones, which are, in most cases of prismatic or cubical form, is attended with
great expense and is moreover, not possible in cases where the material cannot be
readily split. A further inconvenience consists in the fact that such full-sized
stones are very expensive in carriage.
To obviate these inconveniences, different substitutes for the natural stones have
often hitherto been employed. These substitutes are of regular form, but they
either do not possess the necessary hardness and resistance against exposure to the
weather, or their surface is liable to become too smooth by use.
The object of the present invention is to combine the advantages of the natural
stone with the possibility of moulding the artificial stone, and it consists in making
a compound stone for paving, the head or upper part of which consists of natural
stone, whilst the sides and the lower face are formed of artificial stone of regular
shape, in which the upper stone is embedded.
In the accompanying drawing, which is in illustration of the invention,
a represents the artificial stone, and the natural stone.
Natural stones b, for pavements, of any height and of the required size, the
heads a¹ of which have received the desired form by working, and the side faces of
which are wrought more or less perpendicularly to the head face but are roughly
undercut below, are completed to the full size of stones of prismatic and cubical
form and of any height, by forming a foundation of artificial stone or cement a,
under each, by pouring, pressing, and the like. In order to reduce the expense of
carriage, this work may be done at the place where the stones are to be employed,
and in the same manner two or more stones may be combined to form a single
block.
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 :-
Paving stones, consisting of natural stone the upper surface of which is worked
to the required flat shape, whilst the undercut sides, and bottom, are embedded in a
mass of artificial stone, in order to bring the paving stone to the required shape
and height, substantially as described and illustrated.
Dated this 9th day of October 1894.
EDWARDS & Co.,
65 and 66, Chancery Lane, London, Agents for the Applicant.