Magic Lantern Slide Stages and Carriers.
Year: 1887

page_text: Date of Application, 19th Oct., 1887
Complete Left, 13th Apr., 1888
Complete Accepted, 8th June, 1888
Magic Lantern Slide Stages and Carriers.
JAMES HENRY STEWARD 406 Strand London Optician do hereby declare the nature
of this invention to be as follows:-
Also of an
The application to the slide stages of Magic or Optical Lanterns of a platform or
strip of metal or other material-capable of being raised by adjusting screws at each
end and clamped at any position by means of locking screws or nuts.
adjusting screw stop pivoted to the end of stage in such a way that slides shall stop at
a certain spot; this stop when found being fixed by means of a locking screw or nut.
By these two adjustments it is possible to "register" effect exactly, in other words
make two similar pictures absolutely superimpose on the screen, notwithstanding the
Lanterns are used at a different angle and distance to that at which the slides have
previously been adjusted.
For Existing Lanterns the same adjustments are adapted to a framework to carry
the slides and is fitted into the ordinary stages by means of clips.
This framework carries metal or other masks with various shaped openings that are
placed behind the slides or views to be shewn & when pushed in together up to the
stop provided in the stage makes each picture come on the screen exactly the same
size & in the same place.

page_text: I, JAMES HENRY STEWARD 406 Strand, London Optician do hereby declare the
nature of my invention for MAGIC LANTERN SLIDE STAGES & CARRIERS and in what
manner the same is to be performed, to be particularly described and ascertained in
and by the following statement :-
The application to the Slide Stages of magic or optical lanterns of a strip of metal
or other material capable of being raised or lowered by adjusting screws B at each
end and clamped at any position by means of locking nuts C or screws.
Also of an
arm or adjusting screw stop D pivoted to the end of the stage or on the slide runner A
in such a way that slides shall stop when it is in position for use at a certain spot,
this spot when found being fixed by the locking nut For screw. By these two
adjustments it is possible to register "Effect" exactly in other words make two
similar pictures absolutely superimpose on the screen notwithstanding the Lanterns
are used at a different angle and distance to that at which the slides have previously
been adjusted. For existing Lanterns the same adjustments are adapted to a frame-
work to carry the slides as shewn in drawing and this is fitted to the ordinary slide
stage by screws in preference but otherwise by clips or plates &c.
This framework carries if desired metal or other masks with various shaped openings
that are placed behind the slides or views to be shewn & when in position the pictures
on the screen are exactly the same size & appear on the same place. The stop D is
pivoted so that it may be turned aside when panoramic or long slides are used.
Having now particularly described & ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is
1. The adjustable platform or runner for slide stages of magic & optical Lanterns
with clamps to rising screws, substantially as described.
2. The locking nut or nuts to the adjustable stop for slides.
3. The combination of the runner & stop substantially as described with or without
metal masks for cutting down the photographs or pictures to a definite size.
Dated this 13th day of Anril 1888