Improvements relating to Magazine Hand-cameras.
Year: 1898

page_text: Date of Application, 15th Jan.,
1898
DI MUITICALOR
Improvements relating to Magazine Hand-cameras.
I, ALFRED CHARLES JACKSON, of Crown Works, 98, Amhurst Road, Hackney,
London, N.E., Photographic Apparatus Manufacturer, do hereby declare the
nature of this invention to be as follows: --
My present invention relates to improvements in the sheaths or carriers em-
ployed in magazine hand-cameras for carrying the sensitized plates or films, and
has for its object to so construct the said sheaths or carriers that such of these
as may be adapted for carrying films only, may be mounted and used in a camera
intended to carry sheaths or carriers for plates only, and either alone or alter-
nating or otherwise mixed with such plate sheaths or carriers.
In cameras of the type referred to, the sheaths or carriers are suspended in
such a way as to be vertical until the plates or films carried thereby have been
exposed one at a time, after which these are placed in a horizontal position in the
same order, and in the latest or most approved form of apparatus for effecting the
said change of position of the said sheaths (such for instance as that described and
shewn in my previous Patent No. 27102 of A.D. 1896) a greater distance exists
between the vertical moving parts of this when intended for use with sheaths
carrying plates, than when intended for use with sheaths carrying
films, by reason of the difference in the thickness of the two sheaths
arising from the difference in the thickness of films and plates,
consequently it has hitherto been compulsory to construct the said changing appa-
ratus either for films or plates, and as such changing apparatus is made integral
with the camera, hitherto the camera adapted for carrying films was unsuited for
carrying plates and vice-versa, but according to my improvements in the construc-
tion of the said sheaths, the said camera and its changing apparatus may be em-
ployed for carrying and operating either or both kinds of sheaths.
For the purposes of my invention I so bend curl or otherwise form the upper
ends of both kinds of sheaths or carriers, or attach portions thereto or provide
extensions thereon that the thickness of the upper ends of both the plate and film
carriers are the same, and consequently the same changing apparatus may operate
in connection with both kinds of carrier, which provides that a camera may be
charged with either films or plates, or both, at the will of the operator.
this 15th day of January 1808
GEO. THOS. HYDE,
1, Broad Street Buildings, London, E.C., Agent for the Applicant.

page_text: 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 present invention relates to improvements in the sheaths or carriers em-
ployed in magazine hand-cameras, for carrying the sensitized plates or films, and
has for its object to so construct the said sheaths or carriers, that such of these
as may be adapted for carrying films only, may be mounted and used in a camera
intended to carry sheaths or carriers for plates only, and vice versa, and either
alone, or alternating, or otherwise mixed with each other.
In order that my said invention and the manner of its operation may be fully
understood, reference is hereinafter made to the accompanying drawings, of
which,
Fig. 1 is a perspective view of a sheath or carrier as at present used, the method
of and means for suspending the same not being shewn, as such forms no part of
my invention.
Fig. 2 is a vertical central section of a like carrier or sheath arranged to carry
a plate, while Fig. 3 is a like section of a sheath or carrier arranged to carry a
film, the only difference between these being in the thickness thereof, consequent
upon the difference in the thickness of plates and films.
Fig. 4 is a like view of a sheath or carrier, according to my present invention,
adapted to carry a plate, while Figs. 5 and 6 are like views illustrating how such
a carrier or sheath, and a carrier or sheath for films, may both be operated by the
same changing mechanism.
Fig. 7 is a like view of several of my improved plate-sheaths or carriers, packed
as in use for exposure, while Fig, 8 is a like view of several plate and film
sheaths mixed together or alternated and mounted in the same camera, and
operated by the one and the same changing mechanism as hereinafter explained.
In cameras of the type referred to, the sheaths or carriers are suspended in
such a way as to be vertical until the plates or films carried thereby have been
exposed, one at a time, after which these and their said carriers or sheaths are
placed in a horizontal position in the same order, and in the latest or most ap-
proved form of apparatus for effecting the said change of position of the said
sheaths (such for instance as that described and shewn in my previous Patent No.
27102 of A.D. 1896) a greater distance exists between the vertical moving parts
of this when intended for use with sheaths carrying "plates," than when intended
for use with sheaths carrying "films," by reason of the difference in the thickness
of the two sheaths arising from the difference in the thickness of films and plates,
consequently it has hitherto been compulsory to construct the said changing appa-
ratus either for films or plates, and as such changing apparatus is made integral
with the camera, hitherto the camera adapted for carrying films, was unsuited for
carrying plates, and vice-versa, but according to my improvements in the con-
struction of the said sheaths, the said camera and its changing apparatus may be
employed for carrying and operating either or both kinds of sheaths or carriers,
or any desired combination of both.
In my said previous Patent No. 27102 of 1896 the changing mechanism and the
manner of its operation is therein explained and shewn, more particularly by
Fig. 10, and consists of a blade or blades such as R, and a blade or plate such
as m, both operated by a plunger P, the blade or plate m being normally in its
lowest position and arresting the foremost sheath or carrier St, the members R
and m being of such a distance apart as to operate for changing sheaths or
carriers for carrying
* D'lates" only, or "films" only, but not both, but
according to my present invention the said members R and m may be of such a
distance apart as to operate carriers or sheaths for either plates, or films, or both,
in alternating or other mixed order.
In carrying my present invention into effect, I construct the said sheaths or
carriers A and A¹ for plates or films respectively, of the usual material, size,
shape, and configuration, the upper and lower edges of which are bent or curled

page_text: at B and B¹, to form grooves into which the said plates or films may slide, the
said curls being farther from the plate A if for carrying plates, as at Fig 4, than
from the plate A' if for carrying films, as at Fig. 6, and for the purposes of my
present invention, in forming the curl B I first carry the substance of the material,
forming the said carrier or sheath, in an upward direction for a suitable distance
as at a, when the same is again bent down as at b (Figs. 5 and 6) the latter bend
to form the equivalent of the curl B in Figs. 2 and 3, the combined width of a
and 6 being the same in both the plate carrier A (Fig. 5) and the film carrier A¹
(Fig. 6) which provides, that the distance between the members R and m may be
the same for operating both sheaths or carrier, as shewn in Figs. 5 and 6, instead
of being of unequal distances, to coincide with the differences in the thickness of
the plates, and curls therefor, as shewn in Figs. 2 and 3.
By this means the same changing mechanism R m may operate for releasing the
sheaths or carrier one at a time after exposure (as explained in my said previous
patent) irrespective of whether the camera be charged with plate films only, as at
Fig. 7, or carriers or sheaths for films, in like manner, or any desired mixture or
combination of plate and film carrier or sheaths as at Fig. 8, as in both cases the
usual or approved springs C, provided in the back of the camera D, serves to keep
the part b, of the said sheaths or carrier fed up against the member m of the
changing mechanism when down, while the member R would pass down behind a
of the first sheath, and in front of 6 of the second sheath, when m is raised for
releasing the first sheath, as explained in my said previous patent.
A person owning such a camera is thereby enabled (by the improvements con-
stituting my present invention) to charge his camera with plate sheaths, if he
intends taking say a dozen exposures, or with film sheaths, if he
intends taking say two dozen exposures, or without regard to what number his
camera may already contain, may fill up the same with whichever carrier or
sheaths may be at hand so as to have a combination of both as at Fig. 8.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
1st. The improved sheaths or carriers for magazine hand cameras, substantially
as herein described and shewn.
2nd. In magazine hand cameras, the herein described method of forming the
upper ends of the sheaths or carriers for plates and films, as at a and b, sub-
stantially as and for the purposes stated and shewn by the appended drawings.
Dated this 7th day of October 1898.
GEO. THOS. HYDE,
1, Broad Street Buildings, Liverpool Street, London, E.C.,
Agent for the Applicant.