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Richardson's handbook of projection (1927)

Page scan 00063 from Richardson's handbook of projection

Record Details:

Title:
Richardson's handbook of projection
Date:
1927
Publisher:
New York : Chalmers Publishing Company
Volume:
Richardson's handbook of projection
Leaf #:
00063
Language:
English
Subjects:
Motion Pictures, Motion Picture Technology
Collection:
Books
Format:
Books
Contributor:
Media History Digital Library
Sponsor:
Media History Digital Library
Coordinator:
Media History Digital Library
Description:
Date Added:
August 01, 2024
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MANAGERS AND PROJECTIONISTS 513 sizes, the motor and generator armatures are mounted on separate shafts which same are coupled together in the following way : one-half a flange coupling is fitted to the upper end of the rotor shaft and the other is fitted to the lower end of the generator armature shaft. The hub of the fan which supplies ventilation is placed between the two halves, the driving torque being transmitted by a larger square driving pin in one of the flanges which sets in a square slot in the other. In the horizontal type the two halves of the coupling are further secured to one another with bolts. In the case of the vertical sets the armature with its shaft and coupling half Grease Cup Annular ball bearing m housing,." commutator extra neavy hard drawn copper bars, overs. Protect commutator and brushes. Permit ventilation and inspection. '"""' C. Armature. Made up of laminated steel core having form wound coils firmly embedded in its slots. Centrifugal tan. Keeps windings t.-r-ol a:\d clean. Draws fresh air In through motor and generator and discharges it through openices in center section, ■ed Coupling. Joins DC intvtre ami AC rotor shaft. i Annular ball bearing • in hems* : ins Rives support to shafts in Rotor cud ring formed by weld-; ing the ends' of the rotor bars \ Annular ball bearing' and thrust I bearing in bousing. ■\%\i so 191 ; ia=.:!=e; ', ...■-. -,--J. Figure 151.