Living pictures; their history, photoproduction and practical working. With a digest of British patents and annotated bibliography (1899)

Record Details:

Title:
Living pictures; their history, photoproduction and practical working. With a digest of British patents and annotated bibliography
Date:
1899
Publisher:
London Optician & Photographic Trades Review
Volume:
Living pictures; their history, photoproduction and practical working. With a digest of British patents and annotated bibliography
Leaf #:
00098
Language:
English
Collection:
Books
Format:
Books
Contributor:
Robarts - University of Toronto
Sponsor:
University of Toronto
Coordinator:
Media History Digital Library
Description:
52
Date Added:
July 19, 2022
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80 LIVING PICTURES. adopted as the standard, and the maker of every machine in present use which utiUses perforations for feeding is so far indebted to the " Wizard of the West." Furthermore, though the Kinetoscope was only avail- able (publicly at least) for inspection, and not for projection, Mr. Edison did the world a great service in bringing the matter of Living Pictures into a prominent position; he demonstrated the fact that a suitable transparent flexible band was commercially available, and the encouragement thus given to manu- facturers and inventors who saw a possible remunerative field for the exercise of their talents was doubtless largely responsible for the rapid progress towards effective projection which was made during the next three years. On September the 24th, 1892, Mayer fi'ed an American specification (No. Fig. 80. 525'990' which shows a new form of step-by-step motion (Fig. 80). A tappet, P, with inclined faces is drawn to and fro between parallel guides by means of a crank, C, and each time the frame carrying it reaches the top or bottom of its stroke the inclined face of the tappet strikes the inclined face of a tooth, T, thus driving the drum onwards. This forward motion ended, the tappet enters the straight portion between two teeth and so steadies the wheel. On its return journey it leaves this space centred against the slide, and the circle of teeth consisting in an odd number, there is naturally a tooth ready placed for acting on when the tappet reaches the end of its stroke. After the wheel has been steadied by the