Improvements in Magic Lantern and like Slides or Transparencies and in Means for Displaying the same.
Year: 1892

page_text: Date of Application, 28th Mar., 1892
Complete Specification Left, 24th Dec., 1892-Accepted, 11th Mar., 1893
TRUVIDIONAL DICITALIA.
Improvements in Magic Lantern and like Slides or Transparencies
and in Means for Displaying the same.
I, CHARLES Hay Traise BiKKER, Junior, of 53, Charlotte Road, Birmingham,
Warwickshire, Engineer, do hereby declare the nature of this invention to be as
follows:-
The first part of this invention consists in the herein described improved form
of toy magic lantern which is designed so as to shew a series of pictures and be
made and sold at a very low price. The second part of this invention consists in
an improved construction of continuous transparent pictures for magic lanterns and
means for causing them to be brought successively into view.
The first part of my invention I carry out as follows: I provide a lantern
preferably of circular form adapted to receive a candle or lamp or other illuminator.
In the side of this lantern is a large hole preferably of circular square or other
convenient form. There are also some other small holes to admit air. Fitting
inside this lantern is an inner cylinder which can be removed from the top
thereof. The top of this inner cylinder is or may be closed. This inner cylinder
is pierced with holes corresponding with the large hole in the outer part or lantern.
Fixed to the inner cylinder is a series of transparent pictures preferably made in a
continuous strip wrapped round the cylinder either inside or outside thereof. Each
of these pictures is of the proper size and shape to show through the said hole
in the outer part or lantern. By turning the inner cylinder round within the
outer part the pictures are successively brought into view illuminated by the light
inside the lantern.
Or the said inner cylinder may be dispensed with and the outer lantern part
made with several holes each having a separate picture.
I may use for the pictures a film of that thin transparent substance which is
commonly used for window decoration the pictures being printed photographed
painted or otherwise represented thereon or I may use a gelatine or other trans-
parent film.
According to the second part of this invention I use a strip of the said gelatine
or other transparent film on which the pictures to be represented in a magic lantern
are printed photographed or otherwise represented. This film passes between two
pieces of glass in a frame so as to protect the film. The edges of the said film
are or may be strengthened by having a tape fixed thereto. At the sides, or at
the top and bottom, of the said frame are rollers on which the said film is wound.
By turning one or both of these rollers the film is wound off one roller on to the
other and moved between the two pieces of glass and the pictures are successively
brought into the field of the lense.
Dated this 26th day of March 1892
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Magic Lantern and like Slides or Transparencies
and in Means for Displaying the same.
1, CHARLES HAY TRAISE BIKKER, Junior, of 53, Charlotte Road, Birmingham,
Warwickshire, Engineer, 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:-
The first part of this invention consists in the herein described improved form
of toy magic lantern which is designed so as to shew a series of pictures and be
made and sold at a very low price.
A toy magic lantern constructed according to this first part of my invention is
illustrated on the accompanying drawings in front elevation by Fig. 1; Fig. 2 is a
plan of the same; Fig. 3 is a sectional elevation of the same; Fig. 4 is a sectional
elevation of the inner cylinder of the same; and Fig. 5 shews the gelatine or other
Hexible transparent pictures of the same detached from the said inner cylinder.
The first part of my invention I carry out as follows:-I provide a lantern
body A of circular form provided with a candle or lamp B or other illuminator.
This lantern has a base a and is open at the top. In the side of this lantern body
there is a large hole C preferably of circular form as shewn or it may be square
or other convenient form. Fitting inside this lantern body A is an inner cylinder D
(shewn separately by Fig. 4) which can be removed from the top thereof. The
top of this inner cylinder is closed with the exception of a central air hole d.
This inner cylinder is pierced with holes in this case six in number at certain
intervals apart corresponding with the large hole C in the outer part or lantern
body A. Fixed to the inner cylinder D is a series of gelatine or other transparent
pictures shewn separately by Fig. 5 (which may be of any subjects) preferably
made in a continuous strip E wrapped round the cylinder D either inside or
outside thereof. The strip is by preference wrapped round the outside of the
cylinder D between the two projecting ribs d' d' thereon these ribs are formed by
beading out the cylinder to a larger diameter so as to fit in the lantern body A
and prevent the pictures rubbing against the same. Each of these pictures is of
the proper size and shape to show through the said hole C in the outer part or
lantern A. By turning the inner cylinder D round within the outer part A the
pictures are successively brought into view illuminated by the light B inside the
lantern.
Or the inner cylinder D may be dispensed with and the outer lantern part A
made with several holes such as C each having a separate picture. In this case
the transparent strip E is wrapped round and fixed to the lantern body A either
inside or outside thereof.
I may and by preference do use for the said pictures a film of that thin trans-
parent substance which is commonly used for window decoration the pictures being
printed photographed painted or otherwise represented thereon or I may use a
gelatine or other transparent film.
The second part of this invention consists in an improved construction of con-
tinuous transparent pictures for magic lanterns and means for causing them to be
brought successively into view.
According to the second part of this invention which is illustrated in sectional
plan by Fig. 6 and in part sectional elevation by Fig. 7, I use a strip E of the
said gelatine or other transparent film on which the pictures to be represented in a
magic lantern are printed photographed or otherwise represented. This film E
passes between two pieces of glass F1 F2 fixed in the metal or other frame G so
that the glasses will protect the film. Each of the edges of the said transparent
strip E are or may be strengthened by having a tape fixed thereto. These tapes
are respectively marked e' e. At the sides or at the top and bottom but preferably

page_text: at the sides of the said frame G there are rollers marked H' H2 on which the
said film is wound. The ends of these rollers turn in bearings in the frame G.
By turning one of these rollers say H' by the handle I the film is wound off the
other roller H on to the roller H and moved between the two pieces of glass F1 F*
and the pictures on the film E are successively brought into the field of the lense.
By turning the other roller H2 which may be similarly furnished with a handle the
pictures are wound back again on to that roller. The handles I may either be
made removeable from the rollers or fixed thereto. The edges of the glass Fi
have to be rounded off to prevent their scratching the film. The frame G with
the rollers and film can be placed in position in the magic lantern and removed
therefrom as an ordinary slide.
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 :-
1. The hereindescribed improved toy magic lantern consisting of an outer
cylindrical body having a side opening and an illuminator and provided with an
inner cylinder such as D made with side openings corresponding with the side
opening in the lantern body each of the side openings in the cylinder having a
transparent picture arranged to shew successively through the opening in the
lautern body as the cylinder is turned round in the lantern body all substantially
as hereinbefore set forth and shewn.
2. The construction combination and arrangement of parts constituting the
improved toy magic lantern hereinbefore described and illustrated by Figs. 1, 2, 3,
4 and 5 of the accompanying drawings.
3. The improved construction of continuous transparent pictures for magic
lanterns and the means for causing them to be brought successively into view
herein before described and illustrated by Figs. 6 and 7 of the accompanying
drawings consisting of the transparent gelatine or other transparent flexible film E
having pictures printed or otherwise represented thereon wound upon rollers
mounted in a frame and so arranged that by turning the rollers or one of them
the transparent film can be wound off one roller and on to the other roller for the
purpose and substantially as herein before set forth.
4. In a magic lantern slide and in combination with a transparent film which is
adapted to be wound off one roller and on to another roller as herein set forth,
supporting the film by a piece of glass at the frout and another piece of glass at
the back of the film substantially as hereinbefore set forth.
Dated this 23rd day of December 1892.
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.