PIPE-VIEW FOR PROJECTION APPARATUS, AND PROJECTION APPARATUS COMPRISING SUCH A VIEW-PASS

摘要

P THIS IS A PASSWORD TO THE SLIDES 10A, 10B TO WHICH THE CENTRAL MEANS ARE ASSOCIATED. / P P FOLLOWING THE INVENTION, THE SLIDES 10A, 10B BEING THE ONE AND THE 'OTHER FIXED, THESE CENTRAL MEANS INCLUDE AT LEAST ONE CENTERING FINGER 22, 22 WHICH, IN FAVOR OF AN OPENING LOCALLY MADE TO THIS END IN THE FOUNDATION OF ONE OF THEM, IS MOBILE MOUNTED BETWEEN RECOVERED POSITION, FOR WHICH IT IS WITHDRAWN IN RELATION TO THIS SUBSTANCE, AND AN ADVANCED POSITION FOR WHICH IT APPEARS ON IT. / P P APPLICATION TO PROJECTION DEVICES FOR SLIDES. / P