Method of Mounting and Storing Transparent Photographs.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Method of Mounting and Storing Transparent Photographs.
I JOHN JOLY Civil Engineer of 39 Waterloo Road Dublin do hereby declare
the nature of this invention to be as follows:-
The object of my invention is to mount transparent photographic pictures on
glass or celluloid or other transparent material whether positives or negatives in a
book or album and so that they can be readily inspected by transmitted light.
The leaves of the album are perforated through and through with openings of the
required size to receive the plates. Alternate leaves are blank and of white card
or other white or reflecting material so that light reflected from this surface enables
the photographic transparency to be seen by transmitted light as the leaves are
turned over. Or the alternato blank leaves are omitted and a single white leaf or
reflector provided which can be inserted anywhere in the album to reflect light
through the pictures on the adjoining page of the album.
Dated this 1st day of January 1896.
COMPLETE SPECIFICATION.
Method of Mounting and Storing Transparent Photographs.
I, JOHN JOLY of 39 Waterloo Road, Dublin, Ireland, Professor, 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 :-
My invention has for its object to enable transparent photographic or other
pictures (whether positive or negative) on glass, celluloid, and the like, and
particularly lantern slides, to be stored in such manner that they will be preserved
from injury, may be easily removed for use in the lantern or otherwise and as easily
replaced after removal, and the invention has further for object to provide means
whereby the transparent pictures may be easily examined by transmitted light without
removing them.
The invention will be described with reference to the accompanying drawings
forming part of this Specification wherein
Figure 1 is a perspective view of an album with the leaf in position for viewing
the pictures, one of which is partly withdrawn.
Figure 2 is a section.
Figures 3 and 4 shew a modified means of inserting and withdrawing the pictures.
According to my invention the pictures are mounted and stored in the leaves of a
book or album, the said leaves A being formed of an inner body portion a of card-
board, thin wood, or other suitable material corresponding in thickness to the
maximum thickness of the glass or other slides or transparencies b and provided with
through apertures adapted to receive the slides or transparencies wholly within them.
Each surface of the leaf is further covered with a covering face of thin cardboard or
canvas-backed paper c c made to adhere to the inner or body portion a so as to form
an integral part of the leaf, the said coverings cc being provided with apertures
corresponding in shape and position with those of the body portion but of such
ديم

page_text: smaller dimensions that the edges of the coverings will project inwards beyond
the edges of the apertures in the body portion and will consequently overlap the
marginal portions of the slides or transparencies when fitted in the apertures of the
body portion and so form a frame whereby the slides or transparencies will be
securely retained. The thickness of the body portion a being equal to or slightly
greater than that of the slides or transparencies no bulging of the overlapping
margins will be caused which would be liable to lead to damage to the slides when
the book is shut.
In order to provide for the easy insertion and removal of the slides or trans-
parencies the one covering face is slit as at d in proximity to one side of the
aperture or apertures and the body portion is bevelled off as at a' so as to leave the
portion of the covering face c which intervenes between the slit d and the adjacent
side of the aperture or apertures detached from the body portion, the slit being of
such length as to admit of such detached portion being sprung apart from the body
portion sufficiently to give passage to the slide or transparency. The aperture for
inserting the picture may open at the edge of the leaf, as in Figure 3, the body
portion a being partially recessed or grooved to adinit of the insertion of the picture
between the covering faces c. Or the insertion and retention of the picture in the
leaf may be effected by making the leat as follows (see Figure 4) :-The aperture in
the hody portion is made larger in one direction than the dimension of the plate to
be contained in it, the dimension of the aperture exceeding that of the plate to an
extent equal to the width of the opposite overlapping portion e. On the side of the
leaf at which the picture is to be inserted the aperture is partially covered by the over-
lapping portions which are situated only at the extremities of the longer dimension
of the aperture, the dimension of the apertures in the body portion and covering
material c coinciding in the other direction so that there are no overlapping flaps at
the other two sides. The picture is inserted by first slipping it under one of the
overlaps until it can pass free of the opposite overlap beneath which it is then
slipped so as to be retained by its two opposite edges in the aperture in the body
portion. On the other side of the leaf the picture is prevented from falling out by
the marginal overlap of the covering on all four sides of the aperture, as in
the previously described example. In all cases the opening in the covering of the
body portion which limits the visible part of the transparency may be shaped of
square, round, oval, or other suitable form to enhance the appearance of the
picture.
Alternate leaves of the book are blank in order that they may act as light
reflecting surfaces, being for that purpose made of or covered on the one face B
(that next the back of the transparency) with white paper or card or other reflecting
material so as to enable the transparencies to be readily seen or examined by
reflected light as the leaves are rapidly turned over in selecting the slides for use
or when viewing the transparencies. Further to increase the contrast that side B
of the blank leaf which is adjacent to the front face of the leaf A and the front
face of the leaf A in which the pictures are mounted may both be black or of a
dark colour to contrast with the transparent illuminated picture and enable it to
be viewed to advantage.
Each leaf A in which the pictures are mounted may have a small supporting
prope hinged to it at the back, the prop when the book is closed being contained
in a recess sunk in the thickness of the leaf A and when the leaf is opened being
extended and used to support or prop the leaf in a slanting position; the foot of the
prop then resting upon the adjacent leaf B. The transparency may then be viewed
without the fatigue of holding the leaf in the required position so that the light
reflected from the blank page shall come through it."
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed I declare that what I
claim is :-
1. An album or book having its leaves suitably apertured to receive and retain

page_text: transparent pictures, in combination with a suitable reflecting leaf for reflecting light
through the pictures so as to enable them to be viewed whilst retained in their
places in the book.
2. An album for storing transparent pictures, having leaves apertured as described
to receive and hold transparent pictures and admit of their easy insertion and
removal and having blank leaves presenting a light-reflecting surface, the blank
leaves alternating with the apertured leaves substantially as and for the purpose
specified.
Dated this 23rd day of March 1896
A. M. & WM. CLARK,
53, Chancery Lane, London, Chartered Patent Agents.