IMPROVEMENTS IN TOURISTS' GLASSES
Year: 1877

page_text: LETTERS PATENT to Frank Wirth, of the Firm of Wirth and Company, Patent
Solicitors, at Frankfort-on-the-Main, in the Empire of Germany, for the
Invention of "IMPROVEMENTS IN TOURISTS' GLASSES.” A communication
from Peter Pult, Gentleman, of Fulda, in the Empire of Germany.
Sealed the 28th May 1878, and dated the 3rd December 1877.
PROVISIONAL SPECIFICATION left by the said Frank Wirth at the Office
of the Commissioners of Patents on the 3rd December 1877.
FRANK WIRTH, of the Firm of Wirth and Company, Patent Solicitors, at Frank-
fort-on-the-Main, in the Empire of Germany. "IMPROVEMENTS IN TOURISTS'
GLASSES." [A communication from Peter Pult, Gentleman, of Fulda, in the Empire
of Germany.]
This Invention consists of an instrument somewhat like spectacles, constructed
with a rim of cardboard or other suitable material, the eye holes being furnished
with coloured glass or coloured gelatino. When looking through this instrument
most surprising and striking effects are produced upon the person using it.
A series of different colours may be fitted together in one case, so as to be carried
by a tourist or traveller, or otherwise. The effect produced is somewhat like that
obtained when what is known as "Bengal fire" is used to illuminate a district.
I wish it to be understood that my Invention does not consist in the use of
coloured spectacles for the good of the eyes, but in the use of coloured glass or other
suitable material as above described for the use of tourists or others, to produce
novel and peculiar effects.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Frank Wirth in the Great Seal Patent Office on the 31st May
1878.
FRANK WIRTH, of the Firm of Wirth and Company, Patent Solicitors, at Frank-
fort-on-the-Main, in the Empire of Germany. "IMPROVEMENTS IN TOURISTS' |
GLASSES" A communication from Peter Pult, Gentleman, of Fulda. in the Empire
of Germany.
This Invention consists of an instrument which I term "World Improver," and
which is somewhat like spectacles, constructed with a rim of cardboard or other
suitable material, the eye holes being furnished with coloured glass or coloured
gelatine. When looking through this instrument, most surprising and striking
effects are produced upon the person using it.
A series of different colours may be fitted together in one case, so as to be carried
by a tourist or traveller, or otherwise. The effect produced is somewhat like that
obtained when what is known as "Bengal fire" is used to illuminate a district.
I wish it to be understood that my Invention does not consist in the use of coloured
spectacles for the good of the eyes, but in the use of coloured glass or other suitable
material as above described, for the use of tourists or others, to produce novel and
peculiar effects.
In the accompanying Drawing Figure 1 represents an instrument constructed
according to my said Invention, in which a glass is provided for each eye, the
glasses being so fitted to the frame, that the latter fitting the face all round
prevents the eye from seeing any object except through the glasses or coloured
transparent material used in the place of glass.
Figure 2 shews the instrument so constructed that the eyes look through the 1
same glass, the construction being in all other respects the same as above described.
Figures 3 and 4 shew other ways of carrying my Invention into effect, the glass
and frame being constructed like an ordinary eye-glass. These glasses can also be so
constructed that several different colours fit into one frame, as in pocket magnifying
glasses.
Having thus fully described the said Invention, and the manner of performing
the same, I wish it understood that I claim :-
First. The instrument consisting of a rim of cardboard or other suitable material,
and fitted with one or more coloured glasses or with coloured gelatine, as above
described and for the purpose specified.
Second. Two or more glasses fitting into a case and joined or not, as and for the
purpose described.
In witness whereof, I, the said Frank Wirth, have hereunto set my hand and
seal, this Twenty-second day of May, in the year of our Lord One thousand
eight hundred and seventy-eight
FRANK WIRTH. (L.S.)