Handbook of projection for theatre managers and motion picture projectionists ([1922])

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HANDBOOK OF PROJECTION FOR Speed Indicators Power's Speed Indicator 768 Hallberg's Speed Indicator 770 Robbin's Speed Indicator 772 Spotlight, The Spotlight 794 High Intensity Spot 7% Lenses for Spotlight 799 Stereopticon, The Kind Now Required for Projection Rooms 800 Slide Size 800 Slide Carrier Loss 801 Combination Projector , 802 The Dissolver 803 Dissolving Shutter 805 Dissolving With Two Combination Projectors 806 Registering the Lenses 807 Dissolving Carrier for Single Stereopticon 808 Handling Slides— Right Way to Do It 810 Making Slides for Use in Theatre 811 Repairing Slides 810 Switchboards Rules Applying to Installation of Switchboards 97 For Information Concerning Installation of Switchboards Apply to 106 As to Locating Same in Projection Room 98 Necessity for Understanding Switchboards 99 Circuits Main Board Should Carry 99 Fuses Main Board Should Carry 99 Panel Boards ...100 Exit and Emergency Circuits Not Connected to Main Switchboard 103 Built-up Boards 103-106 Stage Switchboard 104 Types of Fuse Used on Stage Board 106 Fuses Stage Board Should Carry 106 Importance Stage Board in Good Condition 106 Stage Board Handled by One Man Only 106 Switches Types Used in Theatres 92 Care Switches Should Have.. ..92 and 96