Richardson's handbook of projection (1927)

Record Details:

Title:
Richardson's handbook of projection
Date:
1927
Publisher:
New York : Chalmers Publishing Company
Volume:
Richardson's handbook of projection
Leaf #:
00080
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:
July 18, 2024
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^530 HANDBOOK OF PROJECTION FOR TO STOP TYPE SK DIRECT CURRENT MOTOR, if a starting rheostat be used, merely open the main switch or circuit breaker. WARNING— Do NOT force the starter handle to "OFF,; position, but permit it to return there of its own accord. REVERSING DIRECTION OF ROTATION— The armature of a motor generator should revolve clock-wise when viewed from the generator end of the set. If this be not the case, then the direction of rotation must be reversed by altering the wire connections. REVERSING ROTATION DIRECTION of Type CS poly phase motors is done as follows. If it be a 2-phase 4-wire motor, the connection of two leads of one of the phases should be reversed. If it be a 2-phase 3-wire motor, then one phase must be reversed, as in the case of the 2-phase 4-wire motor. To do this, disconnect one phase winding from the "common" jumper and connect the other end of the same phase winding to the ''common," connecting the end you disconnected to the line. MotorGenerator, Single Phase Alternating -Current Motor Figure 160 TO REVERSE A 3-PHASE MOTOR you have but to reverse the connections of any two of the wires. TO REVERSE A TYPE AR SINGLE-PHASE MOTOR. In such motors the direction of rotation is controlled by the position of the brushes. It is indicated by a scale on the rocker ring, and a pointer on the front of the bearing bracket. The