Searchlight, 60-inch General Electric Model 1942 And Control Station
Publisher: U.S. G.P.O.
Published: 1943
Place of publication: Washington, D.C., USA
Language: eng
Description: TM 5-7045 Searchlight, 60-inch General Electric Model 1942 And Control Station, 1943-06-04
Table of contents: title: TABLE OF CONTENTS; title: List of Illustrations IX; title: Introduction XI; title: Table of Weights and Dimensions XI; title: Alphabetical Index 149; title: SECTION I - OPERATING INSTRUCTIONS; title: DESCRIPTION; title: 1. General 1; title: SEARCHLIGHT; title: 2. Major Assemblies 1; title: 3. Chassis Equipment 3; title: 4. Junction Box 4; title: 5. Base Assembly 6; title: 6. Azimuth Control Box 7; title: 7. Turntable 8; title: 8. Elevation Control Box 10; title: 9. Elevation Amplifier 12; title: 10. Drum Assembly 13; title: 11. Arc Lamp and Lamp-mechanism Assembly 16; title: 12. Extended Hand Controller 17; title: 13. Canvas Cover and "A" Frame 17; title: CONTROL STATION; title: 14. General Assembly 18; title: 15. Controller and Controller-base Assembly 18; title: 16. Binocular-mount Assembly 20; title: 17. Canvas Cover 20; title: INTERCONNECTING CABLES AND MISCELLANEOUS EQUIPMENT; title: 18. General Description of Cables 22; title: 19. Miscellaneous Equipment 22; title: 20. Spare-parts and Tool Box 22; title: 21. Binocular-mount Stowage Box 23; title: 22. Cable Reels 23; title: 23. Replacement Carbons 23; title: TRANSPORTATION; title: 24. General Loading and Stowing 24; title: a. Cables 24; title: b. Searchlight 24; title: c. Control Station 25; title: d. Miscellaneous 26; title: e. Power Plant 26; title: 25. Unloading 26; title: EMPLACEMENT AND EQUIPMENT SETUP; title: 26. Emplacement Location 26; title: 27. Order of Equipment Setup 27; title: a. Searchlight 27; title: b. Control Station 28; title: c. Power Plant 28; title: d. Interconnecting Cables 29; title: OPERATION; title: 28. Orientation 29; title: a. Orientation upon a Distant Point 30; title: b. Orientation by Interdirection of Units 32; title: 29. Operation Check 32; title: a. General 33; title: b. Searchlight, Checking and Carboning 33; title: 30. Replacement of Carbons 35; title: 31. Distant Electric Control 35; title: a. Automatic D.E.C 35; title: b. Manual D.E.C 38; title: c. Transfer between Methods of D.E.C 39; title: 32. Hand Directional Control 39; title: 33. Lamp Control 40; title: a. Automatic Lamp Control 40; title: b. Semiautomatic Lamp Control 42; title: c. Manual Lamp Control 43; title: SECTION II — DETAILED AND TECHNICAL DESCRIPTION; title: GENERAL ARC SYSTEM Page; title: 34. Components of Arc System 46; title: 35. Lamp Assembly 48; title: 36. Lamp Mechanism 48; title: 37. Detailed Description of Lamp Operation 48; title: a. Positive-carbon Rotation 48; title: b. Positive-carbon Feed 48; title: c. Negative-carbon Feed 49; title: d. Maintenance of Arc Position 49; title: e. Maintenance of Arc Current 54; title: f. Automatic Arc Strike 55; title: 38. Arc Switch 56; title: 39. Searchlight Power Instruments 56; title: 40. Ventilating System 56; title: 41. Drum Details 57; title: a. Ground-glass Finder 57; title: b. Focusing Knob 58; title: c. Peep Sights 58; title: d. Recarboning Lamp 58; title: 42. Miscellaneous Devices 58; title: a. Voltage-adapter Relay 58; title: b. Scale-lamp Switch 58; title: c. Service-outlet Receptacle 58; title: ZERO-READER SYSTEM; title: 43. Components of Zero-reader System 58; title: a. Function of System 59; title: b. Low-speed Synchronism 59; title: c. High-speed Synchronism 60; title: 44. Dynamotor 60; title: 45. Transmitters and Control Transformers 60; title: a. Theory of Operation 6l; title: 46. Zero Indicators 62; title: a. Theory of Operation 62; title: 47. Miscellaneous Devices 62; title: a. Dynamotor Voltage-adapter Relay 62; title: b. A-c Selector Switch 63; title: c. A-c Protective Fuse and Pilot Light 63; title: d. Dynamotor Protective Fuse 63; title: e. Zero-indicator Selector Switch 63; title: DISTANT-ELECTRIC-CONTROL SYSTEM; title: 48. General Description of D.E.C 63; title: a. Features of System 63; title: b. Methods of Control 64; title: c. General Theory of Operatibn 64; title: 49. D.E.C. Devices at Searchlight and Control Station 65; title: a. Transfer Between Methods of D.E.C 65; title: b. D.E.C. Subsystems 66; title: 50. Mechanical Subsystem at Searchlight 66; title: a. Elevation 71; title: b. Azimuth 71; title: 51. Mechanical Subsystem at Control Station 72; title: a. Azimuth 72; title: b. Elevation 73; title: 52. Power-drive Subsystem 73; title: a. Amplidyne Motor-generator 74; title: (1) Special Characteristics of the Amplidyne 74; title: (2) Theory of Operation of the Amplidyne 75; title: (3) Split Field of Amplidyne Generator 76; title: (4) Application to Searchlight Operation 76; title: b. Drive Motor 76; title: (1) Drive-motor Field 76; title: (2) Drive-motor Armature 77; title: 53. Electrical-actuation Subsystem 77; title: a. General Operation 77; title: b. Components of System 78; title: 54. Description of Amplifier 78; title: a. The Amplifier Tubes 79; title: b. Amplifier Operation 81; title: (1) Supply-voltage Circuits 81; title: (2) Output-voltage Circuit 81; title: (3) High-speed Control Circuit 82; title: (4) Low-speed Control Circuit 83; title: (5) Antihunt Circuit 83; title: 55. Operation of High- and Low-speed Systems Combined 84; title: a. Accuracy Compared with Low-speed System Alone 84; title: b. "Knife-edge" Position 85; title: c. Use in Automatic and in Manual D.E.C 86; title: 56. Hunting 86; title: 57. Protective Subsystem 86; title: a. Drum-door Interlocks 86; title: b. Azimuth Clutch Switch 86; title: c. Azimuth Control Contactor 87; title: d. Elevation Brake Switch 88; title: e. Elevation Control Contactor 88; title: f. Elevation Electrical-limit Switch 88; title: g. Signal Buzzers 89; title: h. Amplidyne Overload Switches 89; title: 58. Additional Precautions 89; title: SECTION III — CLEANING, LUBRICATION, AND ADJUSTMENT; title: 59. General 91; title: CLEANING AND LUBRICATION; title: 60. Explanation of Tables 91; title: ADJUSTMENTS; title: 61. General 106; title: 62. Instruments 106; title: 63. Searchlight Levels 107; title: 64. Elevation Control Transformers 108; title: 65. High-speed Elevation Control Transformer 109; title: 66. Low-speed Elevation Control Transformer 114; title: 67. Elevation Electrical Limits 117; title: 68. Arc-current Regulator 118; title: 69. Lamp-head Alignment 119; title: 70. Positive-carbon Protrusion 120; title: 71. Ground-glass Finder 122; title: 72. Positive Feed Magnet 123; title: 73. Control-station Azimuth Clutch 123; title: 74. Control-station Azimuth-flywheel Clutch 124; title: 75. General 124; title: a. The Analyzer 124; title: 76. Faulty Lamp Operation 125; title: 77. Faulty Operation of the Zero-indication System 128; title: 78. Checking the Zero-indication System 128; title: a. Conditions for Normal Operation 128; title: b. Additional Checks 129; title: 79. Checking the Low-speed Indicators 129; title: a. Azimuth Low-speed Indicator 129; title: b. Elevation Low-speed Indicator 130; title: 80. Checking the High-speed Indicators 130; title: a. Azimuth High-speed Indicator 131; title: b. Elevation High-speed Indicator 131; title: 81. Symptoms of Faulty D.E.C. Operation 131; title: 82. Checking the D.E.C. System 132; title: ADDENDUM; title: THE ANTIAIRCRAFT PROBLEM; title: 83. General Factors 139; title: 84. Illumination Intensity 139; title: 85. Relative Effect of Reflector Diameter 140; title: 86. Effect of the Position of the Source 142; title: 87. Efficiency 142; title: 88. External Effects of Efficiency 143; title: 89. Distance of the Target 143; title: 90. Absorption by the Atmosphere 144; title: 91. Dimensions and Characteristics of the Target 145; title: 92. Position of the Observer 147; title: 93. Visual Acuity and Use of Glasses 148; title: LIST OF ILLUSTRATIONS; title: FIGURE PAGE; title: 1 Antiaircraft Searchlight Equipment XII; title: 2a Searchlight in Operating Position 1; title: 2b Searchlight in Transportation Position 2; title: 3 Chassis 3, 4; title: 4 Junction Box 5; title: 5 Searchlight Base 6; title: 6 Azimuth Control Box 7, 8; title: 7 Searchlight Turntable 9; title: 8 Elevation Control Box 10; title: 9 Elevation Amplifier Box 12; title: 10 Searchlight Drum 13, 14; title: 11 Lamp and Lamp-mechanism Box 16; title: 12 Control-station Assembly 17; title: 13 Controller 19; title: 14 Binocular Mount 21; title: 15 Binocular-mount Box 23; title: 16 Field Emplacement of Searchlight Equipment 27; title: 17 Carbon Installation 34; title: 18 Assembled Searchlight 36; title: 19 Assembled Control Station 37; title: 20 Partial View of Drum 41; title: 21 Schematic Diagram of General Arc System 45; title: 22 Searchlight Lamp 46; title: 23 Lamp Mechanism 47; title: 24 Schematic Diagram of Lamp Gearing 51, 52; title: 25 Arc Switch 56; title: 26 Ventilating System 57; title: 27 Schematic Diagram of Zero-reader System 59; title: 28 Schematic Diagram of Transmitter and Control Transformer at Zero-output Position 61; title: 29 Schematic Diagram of Transmitter and Control Transformer in a Non-synchronous Position 61; title: 30 Schematic Diagram of Azimuth D.E.C. System 64; title: 31 Schematic Diagram of Searchlight Gearing 67, 68; title: 32 Schematic Diagram of Control-station Gearing 69, 70; title: 33 Schematic Diagram of Power-drive Subsystem 74; title: 34 Amplidyne Motor-generator Theory 75; title: 35 Schematic Diagram of Elearical-actuation Subsystem 78; title: 36 Schematic Diagram of Electronic Amplifier 79; title: 37 Graph Showing Relation between 1-speed and 33-speed Systems 84; title: 38 Schematic Diagram of Protective Subsystem 87; title: 39 Lubrication Points on Lamp-mechanism Box 92; title: 40 Lubrication Points on Lamp and Mirror 94; title: 41 Lubrication Points on Searchlight Assembly 94; title: 42 Lubrication Points on Chassis 96; title: 43 Lubrication Points on Base 96; title: 44 Lubrication Points on Turntable 96; title: 45 Lubrication Points on Azimuth Corrector 98; title: 46 Lubrication Points on Junction Box 98; title: 47 Lubrication Points on Azimuth Control Box 98; title: 48 Lubrication Points on Elevation Control Box 100; title: 49 Lubrication Points on Elevation Control Box 100; title: 50 Lubrication Points on Elevation Control Box 100; title: 51 Lubrication Points on Control Station 102; title: 52 Lubrication Points on Controller 102; title: 53 Adjustment Points on Elevation Instrument Housing 106; title: 54 Adjustment Points on Controller Instruments 107; title: 55 Adjustment Points on Turntable Levels 108; title: 56 Adjustment Points on Elevation Control Box 110; title: 57 First Adjustment on Elevation High-speed Control Transformer 111; title: 58 Selector Switch and A-c Points injunction Box 112; title: 59 Elevation Scale and Zero-index Pointer 113; title: 60 Elevation High-speed Control Transformer Adjusting Worm. 113; title: 61 Final Adjustment on Elevation High-speed Control Transformer 114; title: 62 Elevation Low-speed Control Transformer 115; title: 63 First Adjustment on Elevation Low-speed Control Transformer 116; title: 64 Final Adjustment on Elevation Low-speed Control Transformer 117; title: 65 Adjustment Points on Lamp-mechanism Box 118; title: 66 Adjustment Points on Searchlight Lamp 119; title: 67 Lamp with Aligning Gages in Position 120; title: 68 Adjustment Points for Thermostat Mirror 121; title: 69 Adjustment Points on Ground-glass Finder 122; title: 70 Azimuth Clutches on Controller 123; title: 71 Connection Diagram for Searchlight and Control Station 135; title: 72 Schematic Wiring Diagram for Searchlight and Control Station 137; title: 73 Section View of Normal Arc 140; title: 74 Normal Appearance of Arc 140; title: 75 Diagram of Beam Divergence 141; title: 76 Chart Showing Relative Intensity of Beam 142; title: 77 Chart Showing Effect of Angle of Aspect 146; title: 78 Effect of Distance on Visibility of the Target 147; title: 79 Effect of Observer's Position with Respect to Arc on Visibility of the Target 147