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Show systems; star and delta connections three-phase, four-wire systems; polyphase transformers and induction regulators. (3). 87. Alternating Current MotorsRotating magnetic field, speed, torque and efficiency; types of Admotors; frequency and rotary converters, and stator windings. 88. Alternators and AC ControllersRevolving field alternators; frequency; types of windings; synchronizing and paralleling alternators, and field excitation and load. Across the line, drum, and reversing controllers; interlocks, limits, and low-voltage controls plugging and time-delay relays; compensators and multi-speed controllers. (3). 89. Electrical Instruments Permanent magnet, electro- dynamic, iron vane inclined coil, and induction-type instruments ; sensitivity and connection of instruments; types of indicating meters; watt hour and reactive power indicating and intergrading meters; meter shunts, resistors, and reactors. A W S (3). 90. Industrial Electronics:Basic tube functions; types of emission; types of tubes, diodes, triodes, tetrodes, pentodes, and beam power tubes; replacement characteristics; amplifiers; amplidynes oscillators; high frequency and dialectric heating; types of power tubes; electronic relays. A W S (3). 91. Welding Systems and Electronic Motor ControlReducing current fluctuations; constant-voltage generators; arc, resistance, spot, and projection welding; control of welding ignitron tubes; non-synchronous and synchronous welders; constant heat, aluminum, magnetic, and capacitor; seam welding controls. A W S (3). 92. Automation and InstrumentationServo-mechanisms; amplifier circuits; capacitance control circuits; cathoderay control circuits; counting circuits; measuring circuits; timing circuits; photo electric circuits; automatic control theory; miscellaneous industrial instruments. A W S (3). MACHINE TOOL Courses of Instruction 050. Gun Repair (General Shop)Leisure-time activity offered to acquaint the student with procedures involved in blueing, manufacture of small parts and accessories; repair of stocks, barrels and trigger mechanisms. (1). 71. Machine ToolFundamentals of lathe operation, such as tool grinding, setting up apparatus, chucking work, center drilling, radii and fillet forming, knurling, external threading, drilling, boring, reaming and taper turning. Continued courses will include drilling machines, milling machines, metal sawing and grinders. (8). 72. Machine ToolContinuation of Machine Tool 71. (3). 73. Machine ToolContinuation of Machine Tool 72. (3). 74. Machine ToolContinuation of Machine Tool 73. (3). 75. Machine ToolContinuation of Machine Tool 74. (3). 76. Machine ToolContinuation of Machine Tool 75. (3). WATCHMAKING Courses of Instruction 071. Watchmaking (General Laboratory)Leisure-time activity. Practice of watch repair, including bench work, lathe work, clock mechanisms, and lever escapements. Individual instruction is given. A W S (3). 71. Watchmaking General practice of watch repair. Bench work, lathe work, clock mechanisms, lever escapements, hair springs, bezel jeweling, dial train, and setting mechanism of watches. Each unit of work is practiced and studied separately. A WS (3). 72. WatchmakingContinuation of Watchmaking 71. (3). 73. WatchmakingContinuation of Watchmaking 72. (3). 74. WatchmakingContinuation of Watchmaking 73. (3). 75. WatchmakingContinuation of Watchmaking 74. (3). 76. WatchmakingContinuation of Watchmaking 75. (3). WELDING Courses of Instruction 71. Welding (Electric Arc)For students with little or no training in arc welding as well as those who wish to upgrade themselves in the trades. Welding beads, butt joints, lap joints, fillet weld, pipe welding; overhead, vertical, and flat position welding; preparing and welding of repair jobs; cast aluminum welding; class room instruction. (3). 72. Welding (Electric Arc) Continuation of Welding (Electric Arc) 71. (3). 73. Welding (Electric Arc) Continuation of Welding (Electric Arc) 72. (3). 74. Welding (Electric Arc) Continuation of Welding (Electric Arc) 73. (3). 75. Welding (Electric Arc) Continuation of Welding (Electric Arc) 74. (3). |
