Means for Taking and Exhibiting Cinematographic Pictures.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Means for Taking and Exhibiting Cinematographic Pictures.
We, FREDERICK MARSHALL LEE, of Oakfield, Walton-on-Thames, in the County
of Surrey, Gentleman, and EDWARD RAYMOND TURNER, of 2, Claremont Villas,
Montague Road, Hounslow, in the County of Middlesex, Gentleman, do hereby
declare the nature of this invention to be as follows: —
The object of our invention is to produce and exhibit cinematographic pictures
in such manner that they are seen in the colours of the originals. According to
our invention we place between the object and the sensitised surface on which
the pictures are taken the colour screens which are used in taking negatives for
reproduction in colours the said screens being mounted so that they are rapidly
and in succession brought into position to receive the photographic picture.
This is most conveniently done by revolving the series of colour screens a supple-
mentary shutter or opaque parts between the several screens being interposed at
the intervals between the successive portions of film taking up their positions.
By adjusting the apertures of the screens the exposures for the several photo-
graphic negatives are regulated. Positives from the negatives thus taken are
exhibited through a like moving screen and the several pictures corresponding
to the different colour sensations being exhibited rapidly one after the other,
present to the eve an appearance in form, movement, and colour, resembling the
original from which the photographs were taken. The positives of the various
colour sensations may be exhibited singly in rapid succession, or two, or all of
them may be superposed.
1 1900
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.
Means for Taking and Exhibiting Cinematographic Pictures.
We, FREDERICK MARSHALL LEE, of Oakfield, Walton-on-Thames, in the County
of Surrey, Gentleman, and EDWARD RAYMOND TURNER, of Lynwood, Queen's
Road, Hounslow, in the County of Middlesex, late of 2, Claremont Villas, Mon-
tague Road, Hounslow, aforesaid, Gentleman, do hereby declare the nature of

page_text: 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 our invention is to produce, and exhibit, cinematographic pictures
in such manner that they are seen in the colours of the originals. According to
our invention we place, between the object and the sensitized surface on which
the pictures are to be taken, the colour screens which are used in taking nega-
tives for reproduction in colours, the said colour screens being mounted so that
they are rapidly and in succession brought into position as each successive portion
of the film is brought into position to receive the photographic picture. Posi-
tives (termed colour records) from the negatives thus taken, are exhibited
through a like moving screen, and the several pictures, corresponding to the
different colour sensations, being exhibited rapidly one after the other, present
to the eye an appearance in form, movement, and colour, resembling the original
from which the photographs were taken. The positives of the various
colour sensations may be exhibited singly in rapid succession, or two, or more, of
them may be superposed.
In the accompanying drawings we have illustrated arrangements according to
this invention with reference to which we will describe the manner in which
the invention may be carried into practical effect, but we do not limit ourselves to
these precise arrangements.
Figure 1 is a vertical section shewing the apparatus for taking the negatives.
Figure 2 is a vertical section shewing the arrangement for exhibiting the posi-
tives, and Figures 3 and 4 are face views of the screens through which the nega-
tives are taken, and the positives exhibited, respectively.
The
Referring first to Figure 1. A is the camera in which the cinematographic
film a on which the negatives are to be taken, is exposed before an opening a²,
behind the lens A². This may be arranged and operated in the usual manner.
Mounted in bearings b, is a shaft 62, having secured to it a bevel gear wheel
gearing with a bevel gear wheel ³, on the axis of the sprocket wheel at which
is one of the ordinary sprocket wheels by which the film a is moved.
shaft has secured to it the colour screen B shewn separately in Figure 3 pro-
vided with the three coloured glasses, viz. a red glass R, a green glass G, and a
blue-violet glass B.V. The parts at care opaque, and by making these opaque
portions greater, or less, in width, the exposures for the several photographic
negatives are regulated. The wheels a3 and 63 Figure 1 are so proportioned
that a glass of the colour screen is brought into position by the rotation of the
disc B each time a fresh portion of film is exposed at the opening a³ that is the
disc B is rotated once for each three portions of film exposed, the opaque portions c
shutting off the light as the margins of the colour records pass the aperture 2
The upper part of the disc B, is shewn as being enclosed in a light excluding
hood d or other provision may be made for the exclusion of light. In place of
arranging the screen B inside the camera between the opening a and the lense A²
as shewn it may be arranged outside the lens as shewn in dotted lines.
Referring now to the apparatus for exhibiting the positives or colour records
taken from the negatives as aforesaid. E Figure 2 represents a portion of a pro-
jecting lantern, e being the lamp and the condenser. ff are the sprocket
wheels over which the film of positives or colour records g is passed and by which
it is traversed in front of the aperture 2 in the diaphragm h. In a bearing j, is
carried the shaft to which is secured the colour screen J, shewn separately in
Figure 4, the said shaft being driven by gear wheels, from a counter-shaft
having secured to it a bevel gear wheel gearing with a bevel gear wheel f³ on
the axle of the sprocket wheel f. At 1, 2, 3 are shewn the lenses by which the
positives or colour records are projected upon the surface on which they are
exhibited the light passing direct through the lens and being reflected by the
prisms e³, and mirrors e, to pass through the lenses and
The screen J is
made with three divisions with opaque portions
between to exclude light between

page_text: he successive positives or colour records. The gear f³, is so proportioned
hat the screen J makes a third of a revolution as each of the three colour
ecords g, 9, 93, exhibited at the opening h³, passes from one position to the
ext that is to say as the three colour records pass so the screen J makes one
evolution. The screen J is made as shewn in Figure 4 each division having in
t the three coloured glasses arranged radially as shewn at R (red glass) G (green
glass) B, V, (blue-violet glass). Say the portion of the screen marked R¹ GB, V₁
is in position when the respective colour records g³, 92, g³, are before the open-
ng the colour record y¹ requiring the light to pass through the red glass the
colour record requiring the light to pass through the green glass and the
colour record requiring the light to pass through the blue-violet glass, when
the film moves a distance equal to one colour record the screen B moves through
a third of a revolution and the glasses B, V2, R2, G2 are in position so that the
colour record g¹ is opposite red glass, the colour record opposite green glass
and the colour record which has come into view above g₁ opposite blue-violet
glass. When the film moves through a further distance equal to one colour
record the screen will have moved through another third of a revolution and the
glasses GB3 and R³ will be in position so that the colour record g' is still
opposite red glass and the colour record next above it opposite blue-violet glass
and the colour record above that opposite green glass, and so on as the film is
traversed and the screen rotated. The screen may be arranged in any position
between the condenser and the surface upon which the pictures are exhibited; for
example, it may be arranged in the position represented by the dotted lines.
In referring to the screens hereinbefore and in the claims we of course include
in the expression "glass" any material sufficiently transparent for the purpose.
Having now particularly described and ascertained the nature of this inven
tion, and in what manner the same is to be performed, we declare that what
we claim is :-
-
1. In combination with cameras for taking cinematographic negatives, a colour
screen placed between the object and the sensitized surface and means for moving
the screen synchroneously with the movements of the sensitized surface; substan-
tially as hereinbefore described.
2. In combination with cameras for taking cinematographic negatives, a colour
screen consisting of a disc carrying the several coloured glasses and mounted
upon an axis and provided with gearing by which the said disc is rotated
synchroneously with the movements of the sensitized surface; substantially as
hereinbefore described.
3. In, or for, cameras for taking cinematographic negatives, a colour screen
consisting of a disc carrying the several coloured glasses with opaque portions
between; substantially as hereinbefore described.
4. In apparatus for exhibiting cinematographic pictures the combination with
the projecting lantern and lenses and means for traversing the series of colour
records, of a colour screen, and means for moving it synchroneously with the
movements of the said series of records, substantially as herein before described.
5. In apparatus for exhibiting cinematographic pictures the combination with
the projecting lantern and lenses, and means for traversing the series of colour
records, of a colour screen consisting of a disc carrying the several coloured
glasses and mounted upon an axis and provided with gearing by which the said
disc is rotated synchroneously with the movements of the said series of records;
substantially as herein before described.
6. In apparatus for exhibiting cinematographic pictures, the combination with
the projecting lantern and lenses and means for traversing the series of records
and an opening at which records corresponding to the several colour sensations
ara presented, of means for directing the light rays, passing through each,
through the corresponding lenses, and a colour screen moved synchroneously with
the movements of the series of records; substantially as herein before described.

page_text: 7. In, or for, apparatus for exhibiting cinematographic pictures, a colour
screen consisting of a disc carrying series of coloured glasses arranged radially
with opaque portions between each series and arranged to be moved synchron-
ously with the movements of the series of records substantially as hereinbefore
described.
Dated this 22nd day of December 1899.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.