AN IMPROVED POCKET RUBY LANTERN FOR PHOTOGRAPHIC PURPOSES
Year: 1884

page_text: HENRY JOSEPH REDDING 53 Godolphin Road Shepherds Bush London, W.
Optician and Photographer do hereby declare the nature of my invention for
AN IMPROVED POCKET RUBY LANTERN FOR PHOTOGRAPHIC PURPOSES to be as
follows:-
It is made in a triangular form, the top and bottom being movable and con-
structed so as to allow the air to pass, for the purpose of ventilation, without
allowing any light to escape. The body being surrounded by Cloth, or other
material of such a nature and colour as to prevent any rays, except those which
do not act on a sensitive film, from passing through it, froin a light which is placed
inside.
When the top and bottom are removed, the body folds quite flat without
becoming disunited at any of the joints.
The Invention is illustrated in the accompanying drawings, in which Figure 1
shows an exterior view of the lantern when complete and ready for use.
Figure 2 represents the top which fits tightly on the body (Fig 3). A. is a hole
through which the hot air escapes under which there is a metal disc B (as shown
by dotted line) which prevents the light from escaping, and which is held in its
place by the three pieces which project from it towards the angles, and which aro
revitted to the top at 1. 2. 3.
Figure 3 shows the position in which the four pieces C₁ C³ D' D' which form
the body are, when opened out or unfolded. C and C are plain pieces of
metal which form the back and act as reflectors, D' and D' also of metal form the
fronts, having an opening O' and 0 respectively in each, the openings forming
the windows as it were, all four pieces C¹ C³ D' D are then entirely surrounded
by a piece of Ruby Cloth or other medium (not shown) which is passed under and
secured by the laps c. e. f. f. g. g. h. h. thereby binding the whole together and
forming the hinges. The great advantage gained by this arrangement is, that no
rays can pass from the light which is placed inside, except those which are rendered
nonactinic by the Ruby medium.
Figure 4. shows the bottom which is similar in construction to the top (Fig 2)
the tray I corresponding with the disc B (Fig 2) serves the double purpose of
holding the light and preventing it from escaping through the hole J in the base,

page_text: (as described by dotted line) the tray I is held in position by the three pieces 4. 5. 6.
which project from it, and which are revitted to the base the revits projecting
sufficiently underneath to act as supports and to keep the base raised so as to
allow the air to pass under to the hole J through which it enters the lantern.
Figure 5 shows the way in which the body (Fig 3) folds without becoming
disconnected at any of the joints. This is one of the great advantages this lantern
possesses over all others, as the hinges as before mentioned are formed by the
Ruby Cloth or other medium, which entirely surround the body (Fig 3) thereby
preventing any possibility of anything but nonactinic light from passing through,
another great advantage, as well as being portable, is the impossibility of breakage 1
as there is no glass or fragile material used in its construction.
Figure 6 shows the body (Fig 3) fully folded with the top (Fig 2) and bottom
(Fig 4) placed upon it ready for the pocket.

page_text: COMPLETE SPECIFICATION.
HENRY JOSEPH REDDING 48 Myddelton Square London E.C. Optician and
Photographer do hereby declare the nature of any invention for AN IMPROVED
POCKET RUBY LANTERN FOR PHOTOGRAPHIC PURPOSES and in what manner the
same is to be perforined, to be particularly described and ascertained in and by
the following statement:—
The Lantern is made in a triangular form the top and bottom being moveable,
the body folds quite flat so as to enable it to be carried in the pocket, it
is constructed as herewith described and as illustrated by the accompanying
drawings.
Figure 1 shows an exterior view of the lantern when complete and ready
for use.
Figure 2 represents the top which fits tightly on the body (Fig 3) A is a holo
through which the hot air escapes under which there is a metal disc B (as shown
by dotted line) which prevents the light from escaping and which is held in its
place by the three pieces which project from it towards the angles and which are
revitted to the top at 1. 2. 3.
Figure 3 shows. the position in which the four pieces C₁ C² D' D' which form
the body are, when opened out or unfolded C¹ and Care plain pieces of metal
which form the back and act as reflectors D¹ and D² also of metal form the fronts
having an opening O₁ and O respectively in each, the openings forming the
windows as it were; all four pieces C¹ C D¹ D' are then entirely surrounded by
a piece of of Ruby Cloth or other medium (not shown) which is pissed under and
secured by the laps E E. F. F. G. G. H. H. thereby binding the whole together
and forming the hinges.
The great advantago gained by this arrangement is, that no rays can pass from
the light which is placed inside except those which are rendered nonactinic by the
Ruby medium.
Figure 4. shows the bottom which is similar in construction to the top (Fig 2)
the tray I corrisponding with the disc B (Fig 2) serves the double purpose of
holding the light and preventing it from escaping through the hole J in the
base (as described by dotted line) the tray is held in position by the three
pieces 4. 5. 6 which project from it towards the angles, and which are revitted
to the base, the revits projecting sufficiently underneath to act as supports and
to keep the base raised so as to allow the air to pass under to the hole J through
which it enters the lantern.
Figure 5. shows the way in which the body (Fig 3) folds without becoming
disconnected at any of the joints.
This is one of the great advantages this lantern possesses over all. others as the
hinges as before mentioned are formed by the Ruby Cloth or other medium which
entirely surround the body (Fig 3) thereby preventing any possibility of anything
but nonactinic light from passing through, another great advantage as well as
being portable, is the impossibility of breakage as there is no glass or fragile
material used in its construction.

page_text: Figure 6. shows the body (Fig 3) fully folded with the top (Fig 2) and bottom
(Fig 4) placed upon it ready for the pocket.
Having now particularly described and ascertained the nature of my Invention,
and in what manner the same is to be performed I declare that what I claim is
1st That the body of the lantern folds without being disconnected at any of
the angles as the Ruby Cloth or other medium entirely surround it and forms the
hinges.
2nd That there is no danger of breakage as is the case with lanterns construced
with glass.