Improvements in the Construction of Transparencies for Magic Lanterns, Lamp Panes, and other purposes.
Year: 1892

page_text: Date of Application, 9th Apr., 1892
Complete Specification Left, 12th Jan., 1893-Accepted, 25th Mar., 1893
PROVISIONAL SPECIFICATION.
Improvements in the Construction of Transparencies for Magic
Lanterns, Lamp Panes, and other purposes.
I HENRY OLORENSHAW Designer and Contractor for Chromo-lithographic
Productions of 113 Edmund Street Birmingham in the County of Warwick do
hereby declare the nature of this invention to be as follows:-
The application or affixing of transferable printed decorations, or pictures, in
colours or mono-chrome, known as transfers, to thin sheets of mica by the mediums
of gelatine, gum, gelatine with acid, varnish or other adhesive mediums, for the
construction of magic lantern slides, lamp panes or shades, transparent advertise-
ments, window decorations and other purposes.
Such decorations or pictures when applied or affixed to the substance before
named by the mediums before mentioned-gelatine with acetic acid for preference-
being flexible it is my intention to make the same rigid by means of a narrow
metal or other suitable border, or frame, and so correct and render adaptable for
the purposes before named the natural suppleness of mica which forms the main
sheet or ground of such transparencies, and being so bordered or framed, they will
be almost undamageable, and mica being a perfect non-conductor of heat and
uninfluenced by changes of weather or climate specially adaptable to the purposes
before specified.
Transparencies so constructed when intended for lamp, or lantern sides, or
sections, or shades, and having been made rigid by means of the border before
mentioned will be easily adjustible to the sides or sections of such lamps, or
lanterns, by the same process as glass panes are usually fitted in such lamps or
lanterns by the closing of the metal clips usually provided upon the inside of the
frames of such lamps and lanterns for such purpose.
Dated this 8th day of April 1892.
HENRY OLORENSHAW.
COMPLETE SPECIFICATION.
Improvements in the Construction of Transparencies for Magic
Lanterns, Lamp Panes, and other purposes.
HENRY OLORENSHAW 113 Edmund Street Birmingham, Designer, and
Buying Agent of Continental Chromo Lithographs 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:-
This invention relates to the application of mica for the construction of magic
lantern slides, lamp panes, and other purposes where a central or interior light
is necessary for the display of designs, views, or pictorial representations of any
description.
The designs or pictorial representations may be transferable chromo lithographie
prints or photographs affixed to mica by an adhesive medium, which may be
solutions of gum, gelatine, starch, isinglass, or clear varnish, and the same may be
mounted or affixed to metal frames (brass for preference) or frames of other
suitable material according to the purpose for which they are intended, and
the apertures through which such designs or representations be displayed may
be round, square, or oval to accord with the representation to be displayed.

page_text: Having now particularly described the nature of my invention and in what
manner the same is performed 1 declare that what I claim is
1st. The adaptation and application of mica for the construction of magic
lantern slides lamp panes and other purposes where a central or interior light is
necessary for the display of designs, views, or any other pictorial representations.
2nd. The combining with, affixing to. or mounting of mica in frames of suitable
material (brass being preferred) for the display of such designs views or other
pictorial. representations before mentioned.
3rd. The adaptation of the volcanic substance commercially known as mica for
the display of pictorial effects in lamps lanterns or other mediums where an interior
light is necessary, is the feature of novelty I claim.
Dated this 10th day of March 1893.
HENRY OLORENSHAW.