Year: 1898

page_text: A communication from ROBERT MITTELBACH, of Kötzschenbroda, near Dresden,
in the Empire of Germany, Topographer.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in maps, charts and the like whereby
simultaneous representations of horizontal and vertical sections of the roads, lis-
tricts etc. are shown.
The horizontal projection or plan is represented in the usual way and there-
fore does not require any further explanation. The vertical projection of the
roads etc. is given by printing, in a colour differing from that of the map
geometrical figures corresponding to the vertical sections of the roads etc. between
crossings or places where the road branch off or between two villages or towns
or between certain distances and giving the difference of elevations between the
two ends of each of such sections in black figures and the length of the base of
the profile-figure in say, red figures. These latter are preferably written at right
angle to said base and in order to appreciate the sections the map should be held
so as to have the red figures in an upright position.
This arrangement enables one to get a clear idea of the vertical and horizontal
projection of the road district etc. and to its undulations.
BOULT & WADE,
Agents for the Applicant.
A communication from ROBERT MITTELBACH, of Kötzschenbroda, near Dresden,
in the Empire of Germany, Topographer.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, 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; -
This invention relates to improvements in maps, charts and the like whereby

page_text: simultaneous representations of horizontal and vertical sections of the roads, dis-
trict etc. are shown.
The horizontal projection or plan is represented in the usual way and there-
fore does not require any further explanation. The vertical projection of the
road etc. is given by printing preferably in a colour differing from that of
the map, geometrical figures corresponding to a vertical longitudinal section of the
road etc., between crossings or places where the roads branch off or between two
villages or towns or between certain distances or points and giving the elevations
or altitudes of the two ends each of such sections in say black figures and the
length of the base of the profile-figure in say red figures. These latter are prefer-
ably written parallel to said base, and in order to understand the sections the map
should be held so as to have the red figures in an upright position. In this way
the number on the base line indicates the distance between the two points and the
geometrical figure upon it consisting of lines or curved or a series of connected
lines and curves indicates approximately the vertical section of the road between
the two points, showing at a glance its undulations and rise and fall.
This arrangement enables one to get a clear idea of the vertical and horizontal
projection of the roads districts etc. and its undulations.
Having now particularly described and ascertained the nature of this inven-
tion, as communicated to me by my foreign correspondents and in what manner
the same is to be performed, I declare that what I claim is:-
Maps, charts and the like in which simultaneous representations of horizontal
and vertical projections of the roads or ground are shown characterised by vertical
sections of the road or ground between selected points being shown in a con-
trasting colour to the general colour of the map or ground and the respective
elevations at the ends of each section being indicated in figures at the ends of the
sections and the distance between such points in figures which may be of a different
colour on the profile-base substantially as described.
Dated this 13th day of February 1899
BOULT & WADE,
Agents for the Applicant.