IMPROVEMENTS IN PHOTOGRAPHIC MONOCULAR GLASSES
Year: 1873

page_text: LETTERS PATENT to William Edward Gedge, of No. 11, Wellington
Street, Strand, in the County of Middlesex, Patent Agent, for the
Invention of "IMPROVEMENTS IN PHOTOGRAPHIC MONOCULAR GLASSES."-A
communication from abroad by Auguste Jacques Dallemagne and
Louis Triboulet, of No. 64, Faubourg St. Martin, Paris, France.
Sealed the 3rd September 1873, and dated the 27th March 1878,
PROVISIONAL SPECIFICATION left by the said William Edward Gedge
at the Office of the Commissioners of Patents, with his Petition, on
the 27th March 1873.
I, WILLIAM EDWARD GEDGE, of No. 11, Wellington Street, Strand,
5 in the County of Middlesex, Patent Agent, do hereby declare the nature
of the said Invention for "IMPROVEMENTS IN PHOTOGRAPHIC MONOCULAR
GLASSES," a communication to me from abroad by Auguste Jacques
Dallemagne and Louis Triboulet, of No. 64, Faubourg St. Martin, Paris,
France. to be as follows:-

page_text: discoveries. Thus, taking only its amusing and instructive side, how
much interest is found in the possession of proofs or pictures repre-
senting views of cities, monuments, historical portraits, etc.; but here the
hiatus begins, for in order to have a real collection a very considerable
number of proofs are required, and notwithstanding the cheapness with
which they may be produced, it is nevertheless true that a handsome
collection is very costly, and the classification of each proof as regards
dimensions very inconvenient.
Shortly to define the object of this Invention, the Inventors believe
that if a certain quantity of photographic proofs or pictures could be
assembled or collected in a restricted space, the above-cited incon-
veniences would be avoided, and the hiatus be filled. Such is the
problem; the solution is as follows:-Take a glass of no particular size,
but nevertheless not large, and furnish its circumference with a series of
photographic proofs reduced to their smallest dimensions short of being
of the kind known as microscopic; thus a considerable number of proofs
may be set in line upon this glass, and if this glass is placed in any kind
of envelope or casing, and a rotary motion be given to it, causing each of
the proofs to pass successively beneath a magnifying glass, the conditions
of the problem will have been fulfilled, that is to say, the assemblage of
a certain number of proofs in a given space so that they may without
trouble be seen successively.
The mechanical means used for working. this novel apparatus are
shown on the accompanying Sheet of Drawing, Figure 1 representing
the glass upon which are executed a series of photographic proofs; the
means of obtaining this series presents no novelty, it is simply by 2
reduction; Figure 2 is a view of the mechanical parts serving to move
the glass around its axle; Figure 3 is a section of Figure 2.
In order that in the rotation of the glass each of the proofs may come
facing the lens, a stop notch, regulated according to the position of each
of these proofs, must arrest the rotation of the glass at each proof. This
result is obtained by means of a toothed wheel A, the number of teeth of
which has been calculated according to the number of proofs, and of a
spring B fixed to the casing. The toothed wheel is closely connected
with the glass by a double plate C, pierced with two holes communicating
with two others pierced in the glass, and through which pass two screws. 8
The result is that if a rotary motion be given to the knob D, the glass,

page_text: the plate O, and the toothed wheel A will follow this impulsion until it
is no longer given, when the spring B, which has been made to yield,
will stop the entire arrangement by resuming its position in one of the
teeth of the wheel A. As above stated, this arrangement possesses the
merit of causing the stoppage of each of the proofs.
In short, this apparatus is composed of a collection of photographic
proofs placed circularly upon a plate of clear or of unpolished or ground
glass, or other material which will render the same service, to which is
given a rotary movement by means of the mechanism above described,
or its equivalent, to cause them to pass successively beneath a mag-
nifying lens.
It will be understood that the objects to which this apparatus may be
applied are susceptible of the greatest variety, and that the apparatus
itself may be modified; thus it might be arranged so as to give stereo-
scopic effects by rendering it binocular.
The glass above described may be replaced by an opaque body, upon
which proofs would be placed, to be lit up by the reflection of a glass or
otherwise.
Transparent proofs might even be employed fastened upon the card
cut out for this purpose. The card itself might be of a transparent
material, such as mica or other similar body.
Finally, the shape of the card might be modified from circular to
rectangular; and in lieu of giving it a rotatory motion it may be made
to slide horizontally to pass in review the proofs drawn upon it.
5 SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Edward Gedge in the Great Seal Patent
Office on the 24th September 1878.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
EDWARD GEDGE, of No. 11, Wellington Street, Strand, in the County of
O Middlesex, Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-seventh day of March, in the
year of our Lord One thousand eight hundred and seventy-three, in the

page_text: thirty-sixth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said William Edward Gedge,
Her special licence that I, the said William Edward Gedge, my
executors, administrators, and assigns, or such others as I, the said
William Edward Gedge, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and
at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United Kingdom
of Great Britain and Ireland, the Channel Islands, and Isle of Man, an
Invention for "IMPROVEMENTS IN PHOTOGRAPHIC MONOCULAR GLASSES," a com-
munication to me from abroad by Auguste Jacques Dallemagne and
Louis Triboulet, of No. 64, Faubourg St. Martin, Paris, France, upon the
condition (amongst others) that I, the said William Edward Gedge, my
executors or administrators, by an instrument in writing under my, or
their, or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the
same was to be performed, and cause the same to be filed in the Great
Seal Patent Office within six calendar months next and immediately
after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Edward Gedge, do hereby
declare the nature of the said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained in
and by the following statement :—
Photography, which for some years past has taken so great an
extension, has, as regards its application, been the object of numerous
discoveries. Thus, taking only its amusing and instructive side, how
much interest is found in the possession of proofs or pictures repre-
senting views of cities, monuments, historical portraits, etc.; but here the
hiatus begins, for in order to have a real collection a very considerable
number of proofs are required, and notwithstanding the cheapness with
which they may be produced, it is nevertheless true that a handsome
collection is very costly, and the classification of each proof as regards
dimensions very inconvenient.
Shortly to define the object of this Invention, the Inventors believe
that if a certain quantity of photographic proofs or pictures could be
assembled or collected in a restricted space, the above-cited incon-
veniences would be avoided, and the hiatus be filled. Such is the

page_text: problem; the solution is as follows:-Take a glass of no particular size,
but nevertheless not large, and furnish its circumference with a series of
photographic proofs reduced to their smallest dimensions short of being
of the kind known as microscopic; thus a considerable number of proofs
may be set in line upon this glass, and if this glass is placed in any kind
of envelope or casing, and a rotary motion be given to it, causing each of
the proofs to pass successively beneath a magnifying glass, the conditions
of the problem will have been fulfilled, that is to say, the assemblage of
a certain number of proofs in a given space so that they may without
trouble be seen successively.
'
The mechanical means used for working this novel apparatus are.
shown on the accompanying Sheet of Drawing, Figure 1 representing
the glass upon which are executed a series of photographic proofs; the
means of obtaining this series presents no novelty, it is simply by
reduction; Figure 2 is a view of the mechanical parts serving to move
the glass around its axle; Figure 3 is a section of Figure 2.
In order that in the rotation of the glass each of the proofs may come
facing the lens, a stop notch, regulated according to the position of each
of these proofs, must arrest the rotation of the glass at each proof. This
result is obtained by means of a toothed wheel A, the number of teeth of
which has been calculated according to the number of proofs, and of a
spring B fixed to the casing. The toothed wheel is closely connected
with the glass by a double plate O, pierced with two holes communicating
with two others pierced in the glass, and through which pass two screws.
The result is that if a rotary motion be given to the knob D, the glass,
the plate C, and the toothed wheel A will follow this impulsion until it
is no longer given, when the spring B, which has been made to yield,
will stop the entire arrangement by resuming its position. in one of the
teeth of the wheel A. As above stated, this arrangement possesses the
merit of causing the stoppage of each of the proofs.
In short, this apparatus is composed of a collection of photographic
proofs placed circularly upon a plate of clear or of unpolished or ground
glass, or other material which will render the same service, to which
glass is given a rotary movement by means of the mechanism above
described, or its equivalent, to cause them to pass successively beneath
a magnifying lens.
It will be understood that the objects to which this apparatus may be

page_text: itself may be modified; thus it might be arranged so as to give stereo-
scopic effects by rendering it binocular.
The glass above described may be replaced by an opaque body, upon
which proofs would be placed, to be lit up by the reflection of a glass or
otherwise..
Transparent proofs mght even be employed fastened upon the card
out out for this purpose.
The card itself might be of a transparent
material, such as mica or other similar body.
Finally, the shape of the card might be modified from circular to
rectangular; and in lieu of giving it a rotatory motion it may be made 1
to slide horizontally to pass in review the proofs drawn upon it.
Having now described and ascertained the nature of the said In-
vention, communicated to me as aforesaid, and in what manner the same
is or may be performed, I would have it understood that I claim as
secured to me by the herein-before in part recited Letters Patent, the 1
combination of a series of reduced photographic pictures with a plate
operated so as to bring the pictures successively beneath a magnifying
lens, substantially as and for the purpose herein-before set forth.
In witness whereof, I, the said William Edward Gedge, have here-
unto set my hand and seal, this Twenty-second day of September, 2
in the year of our Lord One thousand eight hundred and seventy-
three..
ATYTAS