Improvements in Geographical and Star Maps, applicable also for Fire Screens and the like.
Year: 1896

page_text: D. te of Application, 11th Aug.. 1896
Complete Specification Left, 9th Feb., 17-Accepted, 17th Apr.. 1897
PROVISIONAL SPECIFICATION.
PROVISIONAL SPECIFICATION.
Improvements in Geographical and Star Maps, applicable also for
Fire Screens and the like.
I, MARY LOUISA BOSTOCK B.A. London of 6 Queen's Parade Cheltenhain in
the County of Gloucester Head Mistress of Cheltenham Public Day School for
Girls do hereby declare the nature of this invention to be as follows:-
This invention consists in the application of a map to each side of a circular disc of
suitable sheet material in such manner that the representations on the two sides make
up a worlds map and correspond with each other the article thus superseding the use
of globes. The maps or representations may be two hemispheres of the terrestrial
globe, divided east and west or north and south or the parts round the north pole
and the parts round the south pole, or the hemispheres of the heavens. The sheet
material may for instance be thick paper, cardboard woodite, opaque or almost
opaque celluloid, leatherette, glass or tin or paper mounted on each side of such
material. In some instances I produce the representations on two discs which are
then glued together or otherwise united. These discs may be flat or convex on the
outer side so that when united the article is lens shaped; they may be united by a
thin brass ring "spun" on all round the edge or by a central rivet or screw with
milledged nut which finds its place in a shallow recess. The lines of latitude may be
numbered on the line representing the earth's axis. The article is sometimes
provided with a foot or stand which may be so applied to it as to give its axis
the proper inclination towards the sun or so that it can if desired be shifted into that
position.
For some purposes I make it to fold up in halves or quarters.
Sometimes I fit the article with a handle detachable or not so as to adapt it for use
as a fire screen, shade, fan or the like.
Some of the uses and advantages of this invention are as follows; it is cheap
portable and durable; when used in the schoolroom each child can therefore be
supplied with it; it affords a ready means for enabling even a child to realize the
relative positions of places in opposite hemispheres better than any ordinary maps.
It may be used as a handy means of reference in private and public rooms where it
can be hung on a peg vertically or so as to show the right inclination to the sun.
the maps are provided with concentric lines with say London as a centre the distances
from the latter could be indicated by numbers and afford required useful information
at a glance. British possessions could be marked in the same or similar colours and
for instance of a deeper hue than the possessions of other lands.
Dated this Eleventh day of August 1896
JENSEN & SON,
77 Chancery Lane, London, W.C., Patent Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in Geographical and Star Maps, applicable also for
Fire Screens and the like.
I, MARY LOUISA BOSTOCK B.A. London, of 6 Queen's Parade, Cheltenham, in
the County of Gloucester, Head Mistress of Cheltenham Public Day School for
Girls, 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 application of a map to each side of a circular disc of
suitable sheet material in such manner that the representations on the two sides make
up a world's map and correspond with each other the article thus superseding the use
of globes. The maps or representations may be two hemispheres of the terrestrial
globe, divided east and west or north and south or the parts round the north pole
and the parts round the south pole, or the hemispheres of the heavens. The sheet
- material may for instance be thick paper, cardboard, woodite, opaque or almost
opaque celluloid, leatherette, glass, or tin or paper mounted on each side of such
material. In some instances I produce the representations on two discs which are
then glued together or otherwise united. The discs may be flat or convex on the
outer side so that when united the article is lens shaped.
Fig. 1 is a side view and Fig. 2 a vertical section through a lens shaped double
map of the world. The two halves of the same may be united by a thin brass ring
"spun" on all round the edge or by a central rivet or screw with milledged nut
which finds its place in a shallow recess. The lines of latitude may be numbered on
the line representing the earth's axis. The article is sometimes provided with a foot
or stand which may be so applied to it as to give its axis the proper inclination
towards the sun or so that it can if desired be shifted into position.
For some purposes I make it to fold up in halves or quarters.
Sometimes I fit the article with a handle detachable or not so as to adapt it for use
as a fire screen, shade, fan or the like.
Some of the uses and advantages of this invention are as follows; it is cheap,
portable and durable; when used in the schoolroom each child can therefore he
supplied with it; it affords a ready means for enabling even a child to realize the
relative positions of places in opposite hemispheres better than any ordinary maps.
If
It may be used as a handy means of reference in private and public rooms where it
can be hung on a peg vertically or so as to show the right inclination to the sun.
the maps are provided with concentric lines with say, London as a centre the distances
from the latter could be indicated by numbers and afford required useful information
at a glance. British possessions could be marked in the same or similar colours and
for instance of a deeper hue than the possessions of other lands.
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:-
A circular double map containing on its two opposite flat or convex sides delineations
of complementary parts of the earth or the heavens or delineations of other geographical
particulars, substantially as and for the purposes set forth.
יהנו
יז
February 1897.
JENSEN & SON,
77 Chancery Lane, London, W.C., Patent Agents.