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sion for progress, man's innate need to wrest her secrets from Nature and to imprison Life itself so as to bend it to his will, all these things tend to sharpen mens' wits and to urge them on in their researches.
A review of the patents taken out during the last thirty years would certainly show that in this field they have outnumbered those taken in any other single field. This alone is evidence of the engrossing nature of the problem and of the multitude of the followers of this bizarre tenth Muse.
Apart from the need which impels him to seek new things, man is often influenced, albeit unconsciously, by the atmosphere created by some necessity of the moment, which emanates and spreads, as from an invisible source, and penetrates the spirit of human ingenuity.
It being reasonable to suppose that the influence of this exceptional atmosphere affects more readily the world of inventors and students > in proportion to their higher intellectual level, we will endeavour by a review of the patents taken out in England in a given lapse of time, but at an interval of ten years, to analyse the trend of the cinematograph.
From January 191 8 to June 1919, the British Patent Office issued a total of 168 cinematographic patents. 10 of these were concerned with color cinematography, 4 with synchronising sound with the image; 7 with relief and stereoscopy, 7 with continuous motion film projectors, 5 with mechanisms aiming at preventing the films taking fire in the event of a stoppage during projection, 17 are apparatuses for taking the pictures, 18 mechanical systems for film manufacture, — such as printing the positives, developing, fixing, washing, etc., 30 improvements or new mechanisms for photographing and projecting, 37 minor modifications to parts of mechanisms, 23 sundry inventions in the technical and photographic field.
COLOUR
SYMCRONISM
STEREOSCOPE EFFECTS
COMTINOUS
MOVEMENT
PREVENTION OF FIRE
CAMERAS
MACHINERY
PROJECTORS
PARTS
JF
MACHINES
NS
iO
I*
7
7
5
17
18
30
37
23
%
30
204 10-r 0-=
6%
2M%
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U%
Z%
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10.7%
17
.9
9
2
2%
13,6%
199 —