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Exhibiting 90
Exciter lamp 38, 39, 40, 121, 131
rays 38 Exits 136 Exhibitors 15
Fault finding, mechanical 124, 125, 126, 127, 128, 129,
13O' 131 sound 131, 132 Feed spool 24, ^, 130, 131 braking ^, 34 ,, sprocket 24, 131 Film booking agencies 22 ,, channel 28, 29 ,, hire costs 18, 22 ,, interpunched 67 ,, loops 24, 30, 32, 33, 124, 125,
128 ,, optical systems 25 ,, speed 24 ,, stock 62, 63 ,, trade journals 22 ,, track 24 Films, cleaning 60 damaged 69 examining 69
protection of 63, 64, 65, 85, 86 Fire regulations 136 Flex connector 53 ,, repairing 54 Flicker 36, 129 ,, arc 148 Focussing 105 Foot candles 81
Framing (racking) , 28, 29, 104, 105 Fuse 49
,, box 56 Fuses 42, 56
Gate 28, 29
,, brush 117
,, pressure 62, 63
,, temperature 32 Gangways, 92, 136 Geneva movement 31, 32 Gliding frequency test-films 72 Gramophone 42
,, speeds 47
Grain in film 63 Greasing 116, 118, 119 Green prints 62 Governor, speed 127
Heat, excessive 43 filters 33
Home Office Regulations 134, 135, 136, 137
Idler rollers 119 Inching knob, 33, 107 Insulation tape 54 Intermittent "heat" 30
mechanism 24, 28, 29 ,, movement 30
sprocket 30
Jackplug 50 Joins, film 53
Lacing (spreading) 107 Lamberts 81 Lamp life 27, 113, 128 Lamps, blackening of 27 blistering 27 ,, changing 27 ,, filament 26, 27 low voltage 27 ,, metal capped 26 prefocussed 26 Leaders, film 61
,, synchronising 62 Length of throw 20 Lengths of throw, chart 79 Lens, Projector 28 Lenses, buying 20
bloomed 20, 28 cleaning 117, 118, 120, 121 ,, danger from heat 25 testing 70 Libraries, film 65, 67, 68 Light beam 28 Lighting circuits 49 safety 136 Loop films 70, 150 Loud-speakers 44, 45, 92, 122 setting up 92 ,, repairing connections
to 56 Lumens 81
Magnetic recorders and reproducers
149 Maltese cross movement 31 Mercury arc 148 Metal surfaces, cleaning 117 Meters, light 81, 82 Microphones 50, 51, 52 Ministry of Education 143 Mobile operator 93 Mood music 46, 47
4*> 5o
184