BASIC MECHANISMS OP 1140

AALGEBRAIC EQUATION 30ALTERNATING CURRENT 187AMPERES 177ANGULAR MEASURE 26,31APPENDIX, TECHNICAL 323ARM. PIVOT 61,67ARM. TELESCOPIC 129ARMA MECHANISMS 349 fL

Cams 356Differential 350Disk integrator 362Divider unit 370Electromechanical 364-371Follow-up heads 364Mechanical 350-363Mechanical damper 369Resolvers 358, 360Torpedo data computer 349

BBALANCE STAFF AND WHEEL 214BALL AND ROLLER INTEGRATOR

117, 119, 134 ff.BALLISTIC CAM

52,54,59,198,303,307,318BARREL CAM 54, 59BASIC MATHEMATICS 26 ff.

Angular measure 26,31Components 30Linear measure 26Radians 31Reciprocal 27Right triangle 28Solving an equation 30Trig functions 28Vectors 30

BASIC MECHANICS 10BASIC SETTING INFORMATION 32BEARING-MOUNTED SYNCHRO

286,297BEARINGS 10BEVEL GEAR 22BEVEL GEAR DIFFERENTIAL 39

372

BRUSHES 187BUZZER, TIME OF FLIGHT 196,200

(CAM-TYPE COMPONENT SOLVER 87CAMS 46 ff.

Arma 356Ballisti~ 52,54,59,198,303,307,318Barrel type 54, 59Cam follower 46, 49, 51, 75, 89, 285Computing 46,57,98Constant lead 46, 47, 59, 93Flat type 47,52Heart 287, 293In component solvers 87In computing multipliers 72In network 307,312,321Intermittent drive 148Motor regulator 211, 217Oscillating 237Purpose and types of 46Reciprocal 46, 99Run-out of 49Secant 46,73Setting procedure 56,58,312,314Signal 237Square 51,58Synchro receiver 293Tangent 50Three-dimensional 357Trig 50

CAPACITOR 203,323,345CIRCULAR SYSTEM 31CLAMP 11, 16,36

Offset 16Use in setting 32,57,310,316,321Vernier 160

CLUTCH 190, 193COARSE AND FINE

Control 280, 289, 292Dials 163,279

COILS 180, 188COLLET 214

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APfLIES11> PAGS ( 10 '71- bNI..Y

COMMUTATOR 187COMPENSATED FOLLOW-UP

CONTROL 234COMPENSATING DIFFERENTIAL 97COMPENSATOR 323, 333, 338, 340

Follow-up 234COMPONENT INTEGRATOR 136 ff.

Setting procedure 142COMPONENT SOLVERS 86 ff.

Arma, resolvers 358Cam type 87Compensating differential in 97Computing cam in 98In network 301,314Offset pin 104Parallax 99Purpose of 86Screw type 100Setting procedure 108, 112,314Target 96, 305works in reverse to vector solver 106

COMPONENTS 30,91Deflection rate 94, 96Mechanism to integrate 136Mechanism to solve for 86Range rate 94, 96

COMPUTING CAM 46, 57,98COMPUTING MECHANISMS 37 ff.COMPUTING MULTIPLIERS 72CONDUCTORS 175CONSTANT

Definition of 27Offset 16

CONSTANT-LEAD CAM 46,47,59,93CONTACTS

Effect of magnetic damper on 334Follow-up 221,236Motor regulator 209,211,213,217Servo motor 204, 324, 328Synchro receiver 283,288,292

CONTROLCoarse 280,292Fine 280, 289

CONTROL TRANSFORMER246,262,264,271

COSECANT 29COSINE 28COTANGENT 29

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COUNTERS 312,315,318Dial substituted for 34Imaginary, for setting 32

COUPLINGS 10, 11Sleeve 11, 14

CRANKS, HAND 152, 166CURRENT 176,181

Alternating and direct 187Controlling the 178, 179Interrupter 196,200

DDAMPER

Magnetic 202,245,334Mechanical, Arma 369

DEFLECTION RATE COMPONENT94,96

DETENTS 161DIALS 162 ff., 311,312,314

Dianndicator 34Disk 162Fine and coarse 163,279Ring 162Velocity lag error on 333

DIFFERENTIAL 38 ff.Addition and subtraction in a 42Arma 350Bevel-gear type 39Compensating 97Follow-up 220,224,338Generator 254In network 304,313Jewel type 45,208,211,215Linear rack and pinion 350Linear rack and sector gear 352Motor 260Purpose of 38Spur-gear type 45with integrator 126

, with synchro receivers 291DIFFERENTIAL SYNCHRO

Generator 254Motor 260

DIRECT CURRENT 187DIRECTOR, DUMMY 261DIRECTOR TRAIN 99DISK DIAL 162

BASIC MECHANISMS

D-(cont'd)

~?fl\e.~ T1) ,'(A(7e \ ,0 ~1?-- DNl'(

F

OP 1140

DISK INTEGRATORS. 114 ff., 134,301Arma 362Ball and roller type 117In network 306Setting procedure 134,316Wheel type 116

DIVIDER UNIT, ARMA 370DOUBLE-SPEED SYNCHRO

RECEIVER 279,288,294Setting procedure 297

DOUBLE-SPEED SYNCHROTRANSMITTER 279

Setting procedure 296DOUBLE- THREAD SCREW 24DRAG, MAGNETIC 232,283,323,324,340DRIVE, INTERMITTENT

146, ISO, 151, 164,318DRIVING FRICTIONS 159DUMMY DIRECTOR 261

EELECTRICAL LOCK METHOD 272,276ELECTRICAL ZERO 272,274ELECTRICITY

Current, electrical 176, 185, 187Electrical zero 272,274in a generator 186in a motor 185Magnetism and 169, 170, 186Measures of 177

ELECTROMAGNETISM 180, 182ELECTROMECHANICAL UNITS 37

Arma 364-371Ford 169-297

ELECTRON FLOW 176ELEVATION 55

Gun 303Superelevation 54

EMPIRICAL FUNCTION 27END GEARS ON DIFFERENTIAL 39ENERGIZE, DEFINITION OF 35ENERGY 177EQUATION, ALGEBRAIC 30ERROR, VELOCITY LAG 332ERROR RECORDER 261ESCAPEMENT MECHANISM 210

Regulator lever 216EXTERNAL GEAR 23

FIELD, MAGNETIC 175, 179, 182,265,342FINE, AND COARSE

Control 280, 289, 292Dials 163, 279

FLAT CAMEdge 52Groove 47

FLUX 342FOLLOW-UP CONTROL 218 ff.

Arma follow-up heads 364Compensated type 23.4Compensator 338Contacts 221, 236In network 313,315,316Intermittent gearing 228Magnetic damper 227,334Magnetic drag 232, 324Oscillating type 236Purpose of 218Servo stator coils connected to 204Synchronizing procedure 240Velocity-lag type 232

FOLLOW-UP HEAD 364Divider with 370Integrator with 362

FOLLOWER, CAM 46, 49, 51, 56, 75, 89, 285Radial type 49, 51Sector type 51Setting procedure 56

FORD MECHANISMSElectromechanical 169-297Mechanical 37 -168

FORK, REGULATOR 214FOUR-INCH INTEGRATOR 131FRICTION 156

Driving 159Holding 154, 156, 158, 166Relief drive 154, 157, 166,207,215Setting procedure 166

FUNCTIONS 27Trigonometric 28

FUZETime computed by cam 55

GGEARS 12, 17,18

Bevel 22End, differential 39

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ALPHABETICAL INDEX

External 23Helical, differential 355How to push 34

Idler 20In intermittent drive 147Intermittent 228, 366

Internal 23Miter 22Pinion 12Planetary 149Ratio 13, 23, 225Reduction 206Sector 23,147,290Spider 40Spiral 23Spur IS, 22Straight and rotary motion 24

Trains 20Types 22Used in setting 34Variable, ratio 115Vector 89,97,108,311,312Worm 25

GENERATORand'motor, synchro 242Magnetism and electricity in 186Sizes and types 246, 270Synchro differential 254

GOVERNOR, TIME MOTOR 371GUIDE ROLLERS 128, 134GUN ELEVATION 303GUN TRAIN 99

HHAIR SPRING 214HAND CRANKS 152 ff., 166

Plunger 154HANDLE FRICTIONS 156, 166

HANDLES 152, 154, 166HANGERS 10, 286HEADS, FOLLOW· UP 362,364,370

HEART CAM 287,293HELICAL GEAR DIFFERENTIAL 355HOLDING FRICTIONS 154 ff., 166HYPOTENUSE 28

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IDLER GEAR 20IMPULSE PIN 214'INCREMENT 124INDICATOR, DIAL 34INERTIA WEIGHT 338,341INTEGRATORS 114 ff., 120, 126, 130, 132

Arma 362Component 136

Setting procedure 142Disk 114,301,306

Ball and roller type 117,119,134 ff.Setting procedure 134,316Wheel type 116, 118

Four-inch 131Guide rollers and telescopic arm on 128Other uses for 130

INTERMITTENT DRIVE 146,151Cam 148Planetary gearing 149Setting procedure 164,318Shock absorber 150

INTERMITTENT GEARING 228, 366INTERNAL GEAR 23INTERRUPTER 196,200INTERRUPTER CONTACTS, RECEIVER

288,292

JJEWEL DIFFERENTIAL 45,208,211,215JOINT, UNIVERSAL 11

KKEYWAY, ROTOR 272

LLAG, VELOCITY

Error 332, 338Follow-up 232

LEAD SCREW 78LEADS, ELECTRICAL 204LIMIT STOPS 144

Setting procedure' 168,.311, 312, 317LINEAR MEASURE 26LINEAR RACK AND PINION

DIFFERENTIAL 350LINEAR RACK AND SECTOR GEAR

DIFFERENTIAL 352

BASIC MECHANISMS OP 1140

L-(Cont'd)

LOCK 192Electrical lock method 272, 276Washer 10

LUG AND PLATE 10,11

MMAGNESITES 170MAGNETIC DAMPER 227,323,334,336MAGNETIC DRAG 232, 283, 323, 324, 340

Construction of 327Velocity lag error 332

MAGNETISM 169, 170 ff.Electromagnetism 180generates electricity 186How it makes a motor turn 184, 186Magnetic field 175,179,182,265,342Magnetic flux 342Magnets 171,172,174

MATHEMATICS, BASIC 26 ff.MECHANICAL DAMPER, ARMA 369MECHANICAL UNITS 37

Arma 350-.363Ford 37-168

MECHANICS, BASIC 10 ff.MECHANISMS

Computing 37In network 304, 308, 309Non-computing 144

MITER GEAR 22MOTOR

Generator and, synchros 242Magnetic damper on 334Magnetic drag on 324Magnetism and electricity in 184Servo 282, 323Sizes and types 246, 271Synchro differential 254,260Time, governor, Arma 371

MOTOR REGULATOR 208 ff.Adjustment procedure 214Timing the 216

MOUNTING PLATES 10MULTIPLE SWITCH 195MULTIPLIER 60 ff.

Computing types 72Single-cam type 72

Setting procedure 82

Two-cam type 74Setting procedure 84

In network 302,306'Pin 61,62,317Simple types 60

Rack type 66Setting procedure 80

Screw type 61Setting procedure 78, 316

Sector type 68Setting procedure 76

NNETWORK

A simplified 299Complete 302, 308Setting the 310

NON-COMPUTING MECHANISMS37, 144

NUT, TRAVELING 145

oOFFSET

Clamp 16is a constant 27Pin component solver 104

OHMS 177Ohm's Law 178

OLDHAM COUPLING 11OSCILLATING CAM 237OSCILLATING FOLLOW-UP CONTROL

236

PPALLET 210PARALLAX COMPONENT SOLVER 99PERMEABILITY 175PI 31PIN

Impulse 214In component solver 89In Time of Flight mechanism 199In vector solver 107Multiplier 61,62,73,317Offset 104

PINION 12, 207Arma. differential 350

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E5 Ib ALPHABETICAL INDEX

1b37~O~LY

PIVOT ARM 61,67PLANETARY GEARING 149PLATE

Lug 10Mounting 10Stop 144

PLUNGERHandcrank 154In solenoid 188

POINT OF SYNCHRONISM 326, 330POLARITY IN TRANSFORMER 266POLES, MAGNETIC 171, 176, 181POWER 177PREDICTION MULTIPLIER 61, 78, 316PUSH BUTTON SWITCH 154, 167, 194

RRACES, BEARING 10RACKS 34

Arma, differential 350In component solvers 89In multipliers 60, 62, 66In vector solvers 107

RADIAL FOLLOWER," CAM 49,51RADIAN MEASUREMENT 26, 31RANGE

In network 301Kept by integrator 120

RANGE RATE COMPONENT 94, 96RANGE KEEPER 115RATE, LINEAR AND ANGULAR 26RATIO, GEAR 13,23,225RECEIVERS, SYNCHRO 245, 279; 282

Bearing-mounted 286Cam 293Contacts 283, 284Double-speed 279,288,295Fine and coarse control 280, 289, 290, 292In network 304Setting procedure 297,311,312Single-speed 279, 283Using servo motors 282

RECIPROCALDefinition of 27Cam 48

RECORDER, ERROR 261REDUCTION GEAR 206

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REGULATOR FORK 214REGULATOR LEVER 216REGULATOR, MOTOR 208, 214, 216RELIEF DRIVE, FRICTION

154, 157, 166,207,215RESISTOR 178RESOLVERS, ARMA 358 ff.

(See COMPONENT SOLVERS)RESPONSE, SERVO 284RIGHT TRIANGLES 28RING DIAL 162RINGS, SLIP 187, 285, 286ROD, SETTING 35ROLLER

and-ball-typeintegrator 117,119, 134ff.Guide 128, 134on Arma follow-up heads 365,367

ROTARY SWITCH 195ROTOR 203, 245, 250, 266, 347

controlled by magnetic drag 324Keyway 272Polarity in leads 267Voltage in leads 266

RUN-OUT, CAM 49

sSCREW 24,61,68, 100

Double-thread 24Lead 78Single-thread 24

SCREW-TYPE COMPONENT SOLVER100

SCREW-TYPE MULTIPLIER 61,78SECANT 29SECTOR FOLLOWER, CAM 51SECTOR GEAR 23

Arma, differential 352Fine control 290In multipliers 68

SECTOR-TYPE MULTIPLIER 68,76SERVO

Compensator on 338Contacts 204. 324, 328Friction relief 207Magnetic damper on 335Magnetic drag on 324Motors, 202.282,323

A"t377

BASIC MECHANISMS OP 1140

S-(cont'd)

Reduction gear 206Relation to follow-up 218Response 284Synchro-servo combinations 282Theory 342

SETTING INFORMATIONBasic 32Cams 58Component solvers 108Integrators 134, 142Intermittent drive 164Limit stop 168Multipliers 76Synchros 272The Network 310Transmitters· and receivers 296

SETTING ROD 35SHADOW STICK 34SHAFT 10, 14

Values 15Spider 39

SHOCK ABSORBER 150SIGNAL

Cam 237Mechanism, Time of Flight 196,200Solenoid 188

SINE 28

SINGLE-CAM MULTIPLIER 72.82

SINGLE-SPEED SYNCHRORECEIVER 278. 283

Setting procedure 297

SINGLE-SPEED SYNCHROTRANSMITTER -278

Setting procedure 296

SINGLE- THREAD SCREW 24

SLEEVE COUPLING 11, 14, 159

SLIDES 61, 62

SLIP RINGS 187.285,286SOLENOID 181

Clutch 190Lock 192Signals 188

SOLVERSArma. resolvers 358Component 86Vector 106

SPIDER GEARS 40. 43, 45. 126, 147

SPIDER SHAFT 39

SPIRAL GEAR 23

SPOT CORRECTION 197

SPRINGS 11

Coil 11

Hair 214

Motor regulator 216

on contacts 328

Take-up 161

SPUR GEAR 15,22

SPUR-GEAR DIFFERENTIAL 45

SQUARE CAM 51,58

STAFF AND WHEEL, BALANCE 214

STANDARD MOTOR METHOD 273 ff.How to test standard motor 277

STATOR 203,244,250,293,342,346

STICK, SHADOW 34

STOP, LIMIT 144, 168,311,313,317

STOP PLATE 144

SUPERELEVATION 54

SWITCHMultiple 195

Push-button 194

Ro.tary 195

SWITCH-BOLT 154. 167

SYNCHRONISM. POINT OF 282,326,330

SYNCHROS 242 ff.Bearing-mounted 286, 297

Cam 293

Contacts 292

Control transformer 262

Differential generator 254

Differential motor 260Electricaloperation 248Electrical zero 272,274

Fine and coarse c~)fitrols 280.289Generator and motor 242Receivers 282.294Setting procedure_ 272,296,311,312,319Sizes and types 246,270Synchro-servo combinations 282Transmitters 278

TTAKE-UP SPRING 161

TANGENT 28Cam SO

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TTARGET COMPONENT SOLVERS

96,314,315TARGET SPEED VECTOR 96'TECHNICAL APPENDIX 323TELESCOPIC ARM 129THREE-DIMENSIONAL CAM 357TIME

In Time of Flight mechanism 198, 200­Integrator input 130Motor governor, Arma 371To 'motor regulator 209

TIME OF FLIGHTBuzzer 196,200Cam 53In network 306Signal mechanism 196, 200

TORPEDO DATA COMPUTER, ARMA349

TORQUE 282TRAINS, GEAR 20TRANSFORMER,CONTROL

246,249,262,271Voltage and polarity in leads 266

TRANSMIT,TERS, SYNCHRO 242,244Double-speed 279Fine and coarse control 280Setting procedure 296, 319Single-speed. 278

TRAVELING NUT 145TRIANGLE 28 ff" 86

Formed by component solver 89Formed by multipliers 63·Formed by vector solver 106Hypotenuse of 28Right 28

TRIG CAM 50TRIGONOMETRIC FUNCTIONS 28TWO-CAM MULTIPLIER 74, 84

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uUNIVERSAL JOINT 11

vVARIABLE 27VARIABLE GEAR RATIO 115VECTOR GEAR 89,97, 108,311,312VECTOR SOLVER 106VECTORS 30,86,91,92,96,314

Mechanism to solve for 106VELOCITY LAG ERROR 332, 338VELOCITY-LAG FOLLOW-Up 232VERNIER CLAMP 160, .316VOLT AGE IN TRANSFORMER 266VOLTS 177,266

wWATTS 177WEDGE 35WEIGHT, INERTIA 338,341WHEEL AND STAFF, BALANCE 214WHEEL- TYPE INTEGRATOR

, 116, 118, 134WORK 177WORM GEAR AND WHEEL 25, 160, 286

zZERO, ELECTRICAL 272,274ZERO POSITION 33, 73

BASIC MECHANISMS OP 1140

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DISTRIBUTION:Standard Navy Distribution List No. 27 (C) and 30 (R)2 copies unless otherwise noted. .La,); 2.e, f; 3.c*, h-k, m*, w'\ dd*, ff*, ii*, pp*; 3. (5 copies), a,d; 4.';'; 5.b; 6.a; 7.£, h; 7. (10 copies), a; B.n (SPECIAL LISTK*, 0'\ AA*); 10.mm; 10. (25 copies), nn; l1.a (BuShips);12.a, b (Revision 1); 14.a, q.

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• NOTES:

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