Practical cinematography and its applications (1913)

Record Details:

Title:
Practical cinematography and its applications
Date:
1913
Publisher:
Philadelphia, Lippincott
Volume:
Practical cinematography and its applications
Leaf #:
000247
Language:
English
Collection:
Books
Format:
Books
Contributor:
Gerstein - University of Toronto
Sponsor:
MSN
Coordinator:
Media History Digital Library
Description:
14
Date Added:
July 19, 2022
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i88 PRACTICAL CINEMATOGRAPHY Another series of technical experiments was carried out by Dr. Otto Fiichs, professor of engi- neering at the German Technical High School of Briinn. The purpose was to elucidate some hitherto obscure points -in connection with the working of steam hammers. Investigations in this field have hitherto proceeded on the graphic principle, the results being recorded by a stylo continually travelling over calibrated paper. It is admitted that this system leaves much to be desired because the stylo is not sufficiently sensitive, and fails to record many of the smaller and more important movements. Accordingly, Dr. Fiichs conceived the idea of using the moving- picture camera in the anticipation that much missing data might thus be discovered. A special apparatus was designed. In reality it is an ingenious combination of the moving-picture camera and the graphic method. There is a paper tape that passes continuously over two rollers and has two stylos constantly bearing on it. These stylos are connected with two indi- cators attached to the sides of the cylinder of the steam hammer, and they supply a continuous record of the steam pressure. The paper tape is moved by an electrically-driven gear, while time intervals are indicated by means of clockwork mechanism. So much for the graphic portion. What the cinematographic portion supplies is