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HOME MOVIES & HOME TALKIES
423
PATHE ENTERS
HOME TALKIE
FIELD
Complete Sound-onFilm Projector for £bO
First Detailed Description
A [COMPLETE sound-on-film talkie projection apparatus, including the projector itself, sound-head, amplifier and loud-speaker at a price very much lower than any other somidon-film talkie equipment that has yet been offered — such is the equipment which the Pathe Company are placing on the British market this autvunn. Hearing of this apjaaratus, which was then being developed in France, Home Movies and Home Tai^kies some months ago paid a special visit to Paris to investigate the position on the spot. As we are now informed by Messrs. Pathescope, of London, that the apparatus is in course of manxifacture in this country, and that a library of films is being prepared, the following description will perhaps be of interest.
17|-mm. Gauge
First of all, the apparatus introduces to the British market one more size of film — 17+ mm. — this being exactly half the width of the standard 35-mm. film. It is unfortunate that with 8, 9.5 and 16 -mm. gauges already available in non-inflammable film, 174 mm. should be chosen as the standard for this apparatus, but, on the other hand, it is not a new size, for it has been used by Messrs. Pathe
The complete Pathe Talkie apparatus (except loud-speaker). Movies " photograph
Special " Home
in France for educational and other work for some years. The picture area available is larger than on any other sxibstandard size, and for soundon-film work it has the advantage that the actual speed of the film travel is faster, thereby enabling (theoretically at least) the higher frequencies to be better reproduced than on smaller sizes. For comparison purposes it can be said that 500 ft. of 17?, mm.
is the equivalent of 400 ft. of 16 or 9.5 mm., so that for sound-on-film work the speed of travel is 25 per cent. faster for the same number of frames per second.
As with the 16-mm. sound-on-fihn method, only one row of perforations is used, the space normally occupied by the other row of perforations being given up to the sound track. In an adjacent column will be seen a repro
Photoelect^/c Cell AND Ampuf-/£/^ Box
VOLUME
Cor^r-ROu
How the film passes through the new Pathe Talkie Projector. Drawn from the actual apparatus by " Home Movies "
Technical Department