Improvements in the Method of Changing Photographic Plates or Films in Apparatus Used for the Exposure of same.
Year: 1896

page_text: Date of Application, 12th June, 1896
Complete Specification Left, 8th Feb., 1897-Accepted, 20th Mar., 1897
PROVISIONAL SPECIFICATION.
Improvements in the Method of Changing Photographic Plates or
Films in Apparatus Used for the Exposure of same.
We, JOHN WILLIAM JEYES of 53 Corporation Buildings Clerkenwell London E.C.
Photographic Camera Maker and ARTHUR LEWIS ADAMS of 81 Aldersgate Street in
the City of London Manufacturer of Photographic Apparatus do hereby declare the
nature of this invention to be as follows:-
This invention has for its object to provide a means whereby the plates or films
used in a camera can be readily changed in a more simple and effective manner than
changing systems as hitherto constructed. For this purpose we construct the back
part of a camera which may be either fixed or detachable with a simple arrangement
that permits of an easy manner of removing a plate or film which has been exposed
and permits of another coming into a correct position ready to receive another
photographic image. At the hottom of the box or camera is fixed a bevelled block
of a suitable height so as to allow one or more plates to rise one above the other.
On the top in front of the plates or films a space of say about one inch is left clear to
allow the fingers to conveniently grasp the front of the first plate and so lift it up
that when it is raised it can easily be removed and placed at the back of the other
plates or films. The next plate or film takes its place and so on until they are all
changed. The whole action may be reversed if necessary. On the top a light-tight
bag is placed through which the front plate or film may easily be lifted and removed
to the back of the series. This action may also be reversed and works as well either
the horizontal or vertical way of the box or camera. Any of the ordinary methods
for bringing plates or films into focus may be adopted. Also a slip or a partition of
any suitable material to facilitate the certain falling or rising of one plate or film only
may be used as adopted in inany styles of photographic apparatus. Also any of the
usual or suitable means may be adopted for preventing light passing through more
than one plate or film.
Dated this Threlfth day of June 1806
JOHN WILLIAM JEYES.
ARTHUR LEWIS ADAMS.
Improvements in the Method of Changing Photographic Plates or
Films in Apparatus Used for the Exposure of same.
We, JOHN WILLIAM JEYES of 53 Corporation Buildings Clerkenwell London E.C.
Photographic Camera Maker and ARTHUR LEWIS ADAMS of 81 Aldersgate Street
City of London Manufacturer of Photographic Apparatus do hereby declare the
5 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 improvements in the method of changing photographic

page_text: plates or films in apparatus used for the exposure of same and is designed with the
object of simplifying the construction and action of such changing methods and in
order that our invention may be clearly understood and readily carried into practice
we will proceed to describe the same with reference to the drawings hereto
annexed.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 shows a sectional side view of a series of photographic plates or films with
the front plate or film raised higher than those behind.
Fig. 2 is a horizontal section of camera.
At the bottom of the box or camera is fixed a bevelled block A of a suitable height
so as to allow one or more plates to rise one above the other. On the top in front of
the plates or films a space of about one inch B is left clear to allow the fingers to
conveniently grasp the front of the first plate and so lift it up that when it is raised
it can easily be removed and placed at the back of the other plates or films. The next
plate or film takes its place and so on until they are all changed. The whole action
may be reversed if necessary. On the top a light-tight bag C. is placed through which
the front plate or film may easily be lifted & removed to the back of the series. This
action may also be reversed and works as well either the horizontal or vertical way of
the box or camera.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. In photographic apparatus the use of a bevelled or inclined surface constructed
and arranged substantially as herein before described and with reference to the
accompanying sheet of drawings.
Dated this 4th day of February 1897.
JOHN WILLIAM JEYES.
ARTHUR LEWIS' ADAMS.