Improvements in Photographic Cameras for Taking Panoramic . Views.
Year: 1896

page_text: Date of Application, 18th Jan., 1890
Complete Specification Left, 12th Oct., 1896-Accepted, 13th Jan., 1897.
To vall, 1990
Complete Specification Left, 12th Oct., 1896-Accepted, 13th Jan., 1897.
PROVISIONAL SPECIFICATION.
Improvements in Photographic Cameras for Taking Panoramic .
Views.
I, LOUIS JEFFERY, of 1 Newton Villas, Finsbury Park, in the County of
Middlesex, Dentist, do hereby declare the nature of this invention to be as.
follows:--
The object of my invention is to provide a photographic camera which can
be utilised to take panoramic views.
To do this I mount the camera on a stand with a circular top around the centre
of which the camera can be turned at an uniform speed by a suitable clockwork
arrangement.
While the camera is making its revolution, the sensitive film on which the picture
is taken is passed in front of an aperture in a diaphragm within the camera, which
aperture may be adjustable to expose the film for a longer or shorter period as
may be necessary.
The flexible film may be wound off one bobbin onto another. In this case.
I may regulate the passage of the film past the aperture as follows:-The axis of
one of the bobbins I make to extend through the bottom of the camera and on this
extension is mounted a small bobbin containing the tape, the end of which is clipped
to a point of the circumference of the top of the stand so that as the camera
revolves the tape is unwound from its bobbin and the requisite motion is thus
transmitted to the bobbin on which the film is mounted, so that the length of film
unwound is equal to the distance which the aperture moves through.
It will be seen that my invention is applicable not only to single aperture
cameras but also to double cameras for taking stereoscopic views and it is especially
useful for taking panoramic views suitable for the stereoscope described in the
Specification of my Patent Application No. 23063.
Dated this Eleventh day of January 1896.
LOUIS JEFFERY.
COMPLETE SPECIFICATION.
Improvements in Photographic Cameras for Taking Panoramic
Views.
I LOUIS JEFFERY of 1 Newton Villas Finsbury Park in the County of
Middlesex, Dentist, 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 :-
The object of my invention is to provide a photographic camera which can be
utilised to take panoramic views.
To do this I mount the camera on a stand with a circular top around the centre
Priced

page_text: of which the camera can be turned at an uniform speed by a suitable clockwork
arrangement.
While the camera is making its revolution, the sensitive film on which the picture
is taken is passed in front of an aperture in a diaphragm within the camera, which
aperture may be adjustable to expose the film for a longer or shorter period as may
be necessary.
Figure 1 is a plan Figure 2 a side elevation and Figure 3 a horizontal section
on the line 3-3 (Figure 2) of a double camera constructed according to this
invention.
a is a disc having a roughened edge and supported on a stand or legs
which are not shewn. b is the camera supported on rollers c c running on the
disc a and by the hollow vertical shaft d which works in a bearing at the centre of
the disc. e is a diaphragm in the camera and e¹ el are slots in it. ff are the
sensitive films which when the camera is in use are wound off from the bobbins g g
onto the bobbins h h passing around the rollers jj covered with indiarubber and
past the slots ele¹. h¹¹are reels or pulleys at the top of the bobbins h upon
which the cords k k are wound. These cords pass over pulleys at the top of
the shaft d down through the shaft and are connected to a weight m. This weight
in falling turns the bobbins h h winding up the films f on them and the films being
nipped between the rollers j and the roughened edge of the disc a drive the caméra
around the disc and one of them is also strained tight between the roller and the
bobbin by reason of the revolution of the camera being retarded by a fly n driven
from the shaft d by a train of clockwork o or it might be from the edge of the
disc. The other film is kept strained between the ruller jaud the bobbin g by reason
of the friction of the latter in its bearings. The fly n is preferably made adjustable
so that the speed of revolution of the camera around the disc a can be regulated.
p is an indiarubber spring pulling the roller j towards the disc a.
The diameter of the disc a is so proportioned that the image of any object
shall travel at the same speed as and therefore remain stationary relatively to.
the film.
It will be seen that my invention is applicable not only to single aperture
cameras but also to double cameras for taking stereoscopic views aud it is especially
useful for taking panoramic views suitable for the stereoscope described in the
Specification of my Patent Application No. 23063.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim in respect of cameras such as are referred to in the first three paragraphs of
this specification is :-
1. Driving the camera by means of the film substantially as described.
2. The combination with the dise of means for driving the film for pressing it
against the edge of the disc and for retarding the revolution of the camera
substantially as described.
3. Single and double cameras substantially as described with reference to the
drawings.
LOUIS JEFFERY.