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Class Information
Number: 74
Name: Machine element or mechanism >
Description: Mechanical combinations, contrivances, or devices constituting portions of machines, instruments and apparatus and consisting of two or more fixed and movable parts so combined that the motion of one compels a completely controlled or constrained motion of the other according to a law of operation inherent in and depending on the nature of the combination, and also the elemental parts of such machines not provided for in other machine element classes.










Class Number Class Name No. of Patents
74/625

Alternate manual or power operators

285
74/828

Alternating-motion driven device with means during operation to adjust stroke

16
74/829

Constant length stroke with means to displace end limits

6
74/830

Cyclical displacement responsive to the alternating-motion

1
74/831

Stroke adjustable to zero and/or reversible in phasing

11
74/838

Cam and follower drive

10
74/839

Axial-type cam (e.g., wabbler type)

18
74/837

Crank pin drive, shiftable pin

23
74/833

Device driven from selected points on oscillating link

19
74/834

Driving lever with adjustable pivot point

27
74/835

Eccentric and strap drive, shiftable eccentric

12
74/836

Changing the extent of eccentricity

23
74/832

Plural driving means to jointly drive the driven device

4
74/2

Automatic operation or control (e.g., trips)

170
74/4

Hit and miss

3
74/3.5

Retarded

18
74/3.54

Clock train

6
74/3.56

Winding knob trip (e.g., alarm mechanism)

0
74/3.52

Plural, sequential, trip actuations

12
74/3

Speed controlled

14
74/3.2

Valve gear trips (e.g., steam engine "corliss" type)

6
74/469

Control lever and linkage systems

164
 

Elements

 
74/565

Controller checks

7
74/527

Detents

612
74/531

Friction

348
74/530

Gear

52
74/528

Hand crank

128
74/529

Interrelated lever release

138
74/540

Lever carried rack

85
74/542

Pedal controlled

25
74/541

Pivoted

22
74/533

Lever engaging rack

36
74/537

Finger lever release

44
74/538

Slidable

133
74/536

Handle release

42
74/535

Lever carried pawl

118
74/539

Pedal controlled

21
74/534

Pivoted

16
74/532

Lever engaging

67
74/564

Foot rests

107
74/543

Handles

184
74/558.5

Caps and covers

107
74/544

Extension

83
74/545

Hand crank

167
74/547

Collapsible

65
74/546

Extensible

30
74/552

Hand wheels

536
74/557

Handles

184
74/553

Knob or dial

258
74/555

Pivoted

12
74/556

Releasable

6
74/558

Rim grips and covers

188
74/554

Slidable

26
74/551.1

Handle bars

373
74/551.8

Attachments and accessories

294
74/551.3

Folding or adjustable

210
74/551.6

Continuous

20
74/551.7

With handle latch

20
74/551.4

Sectional

49
74/551.5

Simultaneously movable

19
74/551.9

Handholds and grips

252
74/551.2

Spring biased or supported

58
74/548

Shaft connections

110
74/550

Engine starter type

1
74/551

Holders

3
74/519

Levers

195
74/522

Adjustable

161
74/523

Hand

374
74/525

Adjustable

65
74/524

Jointed

43
74/526

Stops

378
74/522.5

Swing posts

7
74/520

Toggle

104
74/521

Lazy tongs

28
74/560

Pedals

485
74/562

Extension

42
74/562.5

Offset

25
74/563

Pads and covers

40
74/561

Treadles

19
74/559

Rocker arms

258
74/566

Slot closers and lever guards

67
74/512

Foot operated

818
74/513

Accelerator

356
74/514

Signal

96
74/491

Hand operated

232
74/500.5

Flexible transmitter (e.g., bowden cable)

372
74/501.6

And hand operator

342
74/502.1

For moving a mirror

103
74/502.2

Single rotatable lever (e.g., for bicycle brake or derailleur)

618
74/502

Slidable

158
74/502.4

And sheath support, connector, or anchor

577
74/501.5R

Constant tension sustaining

469
74/501.5H

Hydraulic control

19
74/502.3

Including rolling antifriction elements

54
74/502.6

Specific cable connector or guide

556
74/502.5

Specific cable or sheath structure

143
74/504

Rotatable rod, shaft, or post

56
74/510

Adjustable

5
74/506

Drum and cable

131
74/505

Gear, drum, and cable

109
74/507

Gear

16
74/509

Screw and nut

13
74/508

Variable ratio

4
74/511R

Mountings

13
74/511A

Antenna

1
74/503

Sliding rod

53
74/492

Steering posts

575
74/493

Adjustable

827
74/494

Auxiliary operators

22
74/496

Motion translating mechanism

43
74/497

Cam type

19
74/498

Gear type

208
74/499

Screw and nut

39
74/500

Worm

19
74/495

Position controllers

62
74/515R

Knee operated

9
74/515E

Elbow

4
74/471R

Multiple controlled elements

218
74/471XY

Control moves in two planes

673
74/478

Foot operated

80
74/478.5

Offset extension

22
74/473.1

Transmission control

312
74/473.18

Control convertible between automatic and manual operation

154
74/473.19

Control of plural mechanisms (e.g., control of transmission and control of 4 - wheel drive)

59
74/473.2

Separate control levers

19
74/473.12

Electrical actuator

315
74/473.11

Fluid actuator

133
74/473.16

Foot operated

88
74/473.17

Multiple foot-operated controls

28
74/473.29

Having vibration damper

57
74/473.3

Manually operated selector (e.g., remotely controlled device, lever, push button, rotary dial, etc.)

289
74/473.33

Control lever movable through plural planes

161
74/473.34

Spherical mount (e.g., ball and socket)

66
74/473.35

Resiliently biased control lever

23
74/473.31

Control lever on steering column

70
74/473.32

Control lever movable through plural planes

21
74/473.13

Occupant propelled vehicle

99
74/473.14

Transmission controlled by flexible cable

82
74/473.36

Particular element (e.g., shift fork, template, etc.)

187
74/473.37

Shift fork structure

89
74/473.21

Restriction of shift, gear selection, or gear engagement

285
74/473.22

Prevention of reverse shift

68
74/473.28

Resiliently biased restrictor

103
74/473.23

Separate actuator to disengage restrictor

155
74/473.24

Shift element interlock

122
74/473.26

Resiliently biased interlock

67
74/473.25

With detent, recess, notch, or groove

133
74/473.27

Spherical restrictor

37
74/473.15

Transmission controlled by flexible cable

102
74/479.01

Multiple controlling elements for single controlled element

281
74/490

Antirattling elements

8
74/480R

Interconnected

131
74/481

Hand and foot

101
74/482

Accelerator

56
74/480B

Marine

107
74/483R

Interlocked

162
74/483PB

Push button

68
74/483K

Rod blocks actuation of rotary member

45
74/490.12

Manual controlling elements

9
74/490.14

Levers

13
74/490.15

Pair of levers

17
74/490.13

Planar surface with orthogonal movement or rotation

33
74/490.11

Power and manual controlling elements

15
74/490.07

Power elements as controlling elements

56
74/490.1

Pair of power elements

41
74/490.08

Planar surface with orthogonal movement and rotation

52
74/490.09

Planar surface with orthogonal movement only

120
74/490.01

Robotic arm

309
74/490.03

Including electric motor

233
74/490.04

Including flaccid drive element

124
74/490.02

Including power cable or connector

92
74/490.05

Joint between elements

259
74/490.06

Wrist

182
74/484R

Steering and controls assemblies

124
74/486

Reciprocating control elements

14
74/487

Flexible

16
74/488

Handle bar type

93
74/489

Flexible control element

511
74/485

Rotary control shaft

22
74/484H

With horn control

11
74/470

Resilient connections

161
74/516

Variable output force

104
74/517

Flexible

30
74/518

Variable input leverage

46
74/DIG.11

Creeper speed

3
 

Elements

 
74/572.4

Balancing for drum, e.g., washing machine or arm-type structure, etc., centrifuge, etc.

83
74/567

Cams

537
74/568R

Adjustable

347
74/568FS

Flexible strip

16
74/568M

Memory devices

9
74/568T

Timer devices

49
74/569

Follower

679
74/594.1

Cranks and pedals

302
74/594.4

Pedals

266
74/594.7

Adjustable or folding

52
74/594.5

Counterbalanced

15
74/594.6

With toe or shoe clips

310
74/594.3

Variable

73
74/594.2

With attached gear

211
74/595

Cranks and wrist pins

133
74/600

Adjustable

93
74/601

Automatically

5
74/603

Counterbalanced

235
74/604

Vibration dampers

135
74/605

Lubricated

39
74/596

Multiple throw

17
74/597

Sectional

41
74/598

Sectional

32
74/602

Variable

17
74/599

Yieldable

7
74/570.1

Eccentric

43
74/571.1

Adjustable

49
74/571.11

Radially

24
74/570.3

Having anti-friction means, e.g., roller bearing, lubrication, etc.

18
74/570.2

Plural, movable relative to each other (including ball(s))

71
74/570.21

Concentric

28
74/572.2

Flywheel, motion smoothing-type

68
74/574.4

Damping by absorbing vibration force (via rubber, elastomeric material, etc.)

155
74/574.3

Damping by increasing frictional force

38
74/574.2

Damping using swinging masses, e.g., pendulum type, etc.

65
74/572.21

Structural detail, e.g., fiber, held by magnet, etc.

62
74/574.1

With electrical or magnetic damping

24
74/573.1

With fluid balancing means

54
74/573.13

And bearings

7
74/573.12

And elastic device

29
74/573.11

And pressure compensation

20
74/606R

Gear casings

1316
74/607

Axle and torque tubes

193
74/606A

Cooling

131
74/612

Guard mechanisms

76
74/613

Automatic

17
74/614

Oscillating member actuator

2
74/615

Reciprocating member actuator

17
74/616

Operator controlled

13
74/617

Set screw

2
74/608

Guards

143
74/609

For rotary member

110
74/575

Pawls and ratchets

142
74/576

Noiseless

40
74/577R

Pivoted pawls

79
74/577SF

Flexible single tooth

16
74/577M

Multiple tooth

101
74/577S

Single tooth

79
74/578

Sliding pawls

46
74/579R

Pitmans and connecting rods

263
74/594

Bearings, adjustable

18
74/589

Counterbalanced

12
74/592

Spring

12
74/590

Weight type

29
74/591

Rotating

33
74/579E

Engine type

222
74/587

Hollow rod, lubricated

22
74/579F

Idler arm

2
74/586

Longitudinally adjustable

85
74/580

Radial

8
74/593

Section coupled

16
74/588

Sheet metal type

29
74/581

Yieldable

52
74/584

Automatic release

11
74/585

Toggle link type

6
74/583

Fluid cushion

17
74/582

Longitudinal springs

23
74/572.1

Power generating-type flywheel

89
74/572.11

Structural detail, e.g., material, configuration, superconductor, discs, laminated, etc.

72
74/572.12

Containing fiber or filament

63
74/6

Engine starters

266
74/7R

Automatic

179
74/7C

Clutch connection

189
74/7B

Holders

8
74/7E

Reduction gearing

227
74/7A

Separate power mesher

218
74/7D

Worm and wheel

2
74/9

Cam operated

7
74/8

Radial meshing

10
74/1.5

Escapements

29
74/18

Flexible sealing diaphragm attached to moving rod and to casing

55
74/18.2

Longitudinally reciprocating rod

113
74/18.1

Pivoting or nutating rod

88
74/17.5

Full stroke mechanism

4
74/DIG.5

Gas turbine with gearing

27
74/640

Gearing

300
74/395

Adjustable

85
74/400

Fixed axes

27
74/402

Automatic control

11
74/403

Parallel shafts

9
74/401

Parallel shafts

22
74/396

Relative movable axes

52
74/398

Automatic control

17
74/399

Parallel shafts

19
74/397

Parallel shafts

82
74/318

Alternating rotary or continuous

3
74/319

Alternating rotary

7
74/322

Clutchable gears

11
74/323

On single driven member

13
74/324

On single driving member

2
74/320

Progressive

2
74/321

Shiftable and/or slidable gears

8
74/409

Backlash take-up

444
74/391

Central driving shaft in axle

36
74/412R

Directly cooperating gears

37
74/423

Bevel

66
74/424

Motor vehicle drive

58
74/416

Intersecting axes

98
74/417

Bevel gear type

212
74/413

Parallel axes or shafts

101
74/414

External type

64
74/415

Pin teeth

27
74/422

Rack and pinion

457
74/424.5

Spiral

35
74/424.6

Driven rack or shaft

36
74/424.71

Screw and nut

119
74/424.94

Less than 360 degrees of contact between nut and screw

49
74/424.95

Independent nut segments

21
74/424.96

Integral deformable tangs engaging screw

9
74/424.74

Non-linear screw

13
74/424.78

Nut disengageable from screw

64
74/424.79

Nut segments hinged parallel to shaft (e.g., clam shell-type, etc.)

5
74/424.72

Plural longitudinally variably spaced nuts

31
74/424.81

Rolling element engaging thread

43
74/424.89

Non-recirculating rolling elements

34
74/424.9

Captured sphere

18
74/424.91

Cylindrical or quasi-cylindrical roller element (e.g., inclined roller, etc.)

15
74/424.92

Parallel to shaft

59
74/424.93

Perpendicular to shaft

19
74/424.82

Recirculating rolling elements

124
74/424.88

Interconnected or cooperating rollers or roller structure

45
74/424.83

Plural independent recirculating element paths

30
74/424.86

Return path geometry

91
74/424.87

Rolling element deflector

87
74/424.85

Roller return path in shaft

11
74/424.84

Single thread common to plural paths

8
74/424.75

Thread geometry

96
74/424.77

Shaft thread is spirally wound wire

30
74/424.76

Thread pitch varies over axial length

8
74/424.73

Threadless

14
74/424.7

Screw

20
74/425

Worm

503
74/427

Distribution of pressure

41
74/426

Intermittent motion

13
74/425.5

Variable speed

10
74/420

Spur and bevel

34
74/421R

Spur

162
74/421A

Motor and gearing

208
74/412TA

Torque actuated safety devices

48
74/405

Disconnecting means

124
74/406

Displaceable elements

35
74/390

Eccentric driving shaft and axle

18
74/388R

Follow-up mechanism

36
74/388PS

Power steering

294
74/431

Gear and rotary bodies

44
74/432

Laterally-spaced wheels

30
74/433

Radially-spaced wheels

7
74/433.5

With flywheel

25
74/745

In series plural interchangeably locked nonplanetary units

202
74/325

Interchangeably locked

176
74/333

Combined gear and clutch

271
74/334

Preselector

14
74/335

Control mechanism

1111
 

Automatic

 
74/336R

Speed responsive

373
74/336.5

Governor

11
74/336B

With belt gearing

16
74/337

Torque responsive

73
74/337.5

Cam operated

239
74/329

Disconnectable counter shaft

180
74/332

Internal-external gears

20
74/352

Laterally slidable gears

32
74/353

Rotary carriage

17
74/354

Swinging carriage

86
 

Longitudinally slidable

 
74/347

Multiple bevel gears

11
 

Multiple spur gears

 
74/346

Fluid operated

23
74/344

Progressive

14
74/345

Direct clutch and drive

3
74/342

Selective

61
74/343

Direct clutch and drive

15
74/341

With tumbler gear

4
74/351

Pin or crown gears

16
74/350

Single bevel gear

4
 

Single spur gear

 
74/348

Tumbler and cone

35
74/349

Multiple cone

22
74/339

Meshing assisters

409
74/340

Double clutch and interposed transmission

127
74/330

Multiple concentric clutch shafts

274
74/331

Plurality of counter shafts

542
74/355

Single forward and reverse speeds

43
 

Slidable keys or clutches

 
74/356

Alternative clutch shaft

22
 

Multiple clutch shafts

 
74/360

Multiple forward and reverse

118
74/357

Progressive

31
74/358

Keys simultaneously slidable

13
74/359

Selective

157
74/361

Single forward and reverse

26
 

Single clutch shaft

 
 

Progressive

 
74/362

Multiple key

7
74/363

Spur

39
74/365

Electrically operated

33
74/364

Fluid operated

33
74/366

Single key

11
74/368

Clutch and ratchet

12
74/369

Spur gears

17
74/370

Intermediate clutch

12
74/371

Sliding clutch carrier

73
74/372

Sliding clutch operator

56
74/373

Selective

15
74/374

Multiple key

3
74/375

Spur gears

47
74/376

Single speed forward and reverse

10
74/379

Bevel and idler gears

4
74/378

Bevel gears

55
74/377

Spur gears

37
74/467

Lubrication

360
74/468

Teeth

49
74/650

Nonplanetary gearing differential type (e.g., gearless differentials)

218
74/392

Parallel shafts, adjustable gear mesh

23
74/380

Pivotally supported

20
74/385

Bevel

15
74/386

Wheel type

2
74/387

Wringer type

0
74/383

Screw

3
74/384

Spur

56
74/381

Windmill turntable

6
74/664

Plural power paths from prime mover

59
74/665R

Plural power paths to and/or from gearing

52
74/665Q

Alternate drivers and driven

20
74/670

Alternate input connections single hand crank

6
74/718

Fluid drive divides or combines alternate paths

36
74/721

Friction-type gearing

16
74/665P

Miscellaneous (plural power paths)

29
74/720

One path includes fluid drive

70
74/665L

Plural drivers plural driven

62
74/665M

Bevel

34
74/665N

Spur

38
74/665F

Single drive plural driven

97
74/665S

Aligned

8
74/665T

Vehicle

89
74/665K

Concentric

24
74/665H

Nonparallel

48
74/665G

Parallel

82
74/665GE

Belt or chain

100
74/665GB

Bevel

54
74/665GD

Helical

32
74/665GC

Spur and bevel

59
74/665GA

Spur

195
74/665A

Single driven plural drives

73
74/665D

Aligned

19
74/665C

Nonparallel

62
74/665E

Parallel and aligned

18
74/665B

Parallel

116
74/724

Worm-type gearing

26
74/661

Plural prime movers selectively coupled to common output

201
74/410

Pressure distributing

186
74/810.1

Reversal of direction of power flow changes power transmission to alternate path

114
74/810.2

Input and output exchange functions

8
74/404

Reversing means

40
74/404.5

Governor control

2
74/434

Rotary bodies

88
74/438

External and internal teeth

25
74/436

Geneva

79
74/437

Irregular teeth and bodies

111
74/435

Mutilated

107
74/439

Sectional

52
74/440

Backlash take-up

163
74/441

Screw and nut

128
74/450

Diametrically split

16
74/444

Differential disks

8
74/445

Multiple disks

28
74/448

Segmental rim

34
74/446

Separate rim

45
74/447

Detachable

40
74/451

Shaft-admitting insert

11
74/449

Sheet metal

28
74/443

Sound deadening

104
74/655

Single gearing unit includes fluid drive

19
74/457

Teeth

91
74/459.5

Bevel

41
74/460

Spur

67
74/462

Form

233
74/464

Antifriction

15
74/465

Roller

44
74/466

Twisted

6
74/461

Yieldable

60
74/458

Worm and helical

124
74/216.3

Toothed gear and recirculated unconnected elements

22
74/393

Varying speed ratio

84
74/411.5

With brake means for gearing

249
74/730.1

With fluid drive

117
74/731.1

Condition responsive control

78
74/732.1

With one or more controllers for gearing, fluid drive, or clutch

66
74/733.1

With interrelated controls

86
74/411

Yieldability in gear trains

288
74/5R

Gyroscopes

89
74/5.22

Combined

60
74/5F

Flexure hinges for gyros

76
74/5.95

Flywheel structure

12
74/5.4

Gyroscope control

53
74/5.5

Damping

49
74/5.41

Erecting

15
74/5.45

By friction

2
74/5.43

By jet

13
74/5.46

By magnetic field

64
74/5.47

By motor torque

49
74/5.42

By plural diverse forces

8
74/5.44

By weight

12
74/5.9

Horizontal gyroscopes

19
74/5.34

Multiple gyroscopes

57
74/5.37

With rotor drives

23
74/5.8

Vertical gyroscopes

21
74/5.1

With caging or parking means

31
74/5.14

And resetting means

2
74/5.12

Rotor spin and cage release type

22
74/5.2

With gimbal lock preventing means

6
74/5.6R

With pick off

12
74/5.6C

Conducting liquid

3
74/5.6E

Electrical and magnetic

48
74/5.6D

Electrical

68
74/5.6A

Optical

25
74/5.6B

Pneumatic

7
74/5.7

With rotor drive

98
74/DIG.1

Hydraulic control systems automatic automotive controls

8
74/DIG.7

Indicators-sensors and meters

39
74/DIG.4

Magnetic gearing

33
74/DIG.8

Marine control-ship transmission control means

11
74/111

Mechanical movements (intermittent grip type)

10
74/144

Grip units and features

11
74/145

Compound movement handle

0
74/146

Reversible

3
74/147

Transverse pivots

1
74/162

Grip features

8
74/165

Driven band and gripper

4
74/166

Positive grip

3
74/169

Driven ratchet-bar and power dog

15
74/163

Driving band

4
74/164

Clamping

4
74/167

Driving ratchet-bar or rack

1
74/168

Multiple acting

2
74/156

Gripper mountings, lever

5
74/158

Multiple acting

3
74/159

Single ratchet or clutch

1
74/157

Reversible

12
74/160

Gripper mountings, slide

16
74/161

Multiple acting

5
74/148

Gripper releasing devices

5
74/155

Holding pawl lifter

15
74/149

Power pawl lifter

7
74/150

Automatic

2
74/151

Idle stroke

4
74/152

Cooperating holding pawl

3
74/153

Power stroke

2
74/154

Cooperating holding pawl

3
74/126

Oscillation or reciprocation to intermittent unidirectional motion

52
74/141.5

Lever actuator

38
74/142

Rotary driven element

77
74/143

Multiple acting

72
74/130

Rack actuator

24
74/131

Multiple acting

13
74/132

Inwardly facing racks

10
74/133

Oscillating

5
74/134

Multiple acting

4
74/135

Inwardly facing racks

1
74/127

Screw and nut devices

32
74/128

Slide actuator

119
74/129

Multiple acting

50
 

Strap actuator

 
74/136

Multiple acting

11
74/137

Spring or weight return

7
74/138

Single acting

11
74/139

Engine starter type

3
74/140

Spring or weight return

8
74/141

Spring or weight return

13
74/112

Rotary to intermittent unidirectional motion

56
74/113

Automatically controlled

27
74/114

Speed

6
74/125.5

Intermittently engaged clutch

67
74/116

Rotary crank or eccentric drive

42
74/117

Adjustable

74
74/118

Lever transmitter

5
74/119

Adjustable leverage

23
74/120

Rack and pinion transmitter

11
74/121

Adjustable throw

8
74/122

Rotary cam drive

21
74/123

Adjustable throw

11
74/124

Radial cam

8
74/125

Radial cam

23
 

Mechanical movements

 
74/96

Oscillating to oscillating

160
74/98

Geared connections

55
74/97.1

Snap action

66
74/97.2

Plate spring

6
74/20

Oscillating to reciprocating and alternating rotary

15
74/21

Oscillating to reciprocating and intermittent rotary

11
74/88

Reciprocating or oscillating to intermittent unidirectional motion

41
74/89

Reciprocating or oscillating to or from alternating rotary

150
74/89.13

Including bevel gears

38
74/89.2

Including flexible drive connector (e.g., belt, chain, strand, etc.)

185
74/89.22

With pulley

227
74/89.21

With sprocket wheel

104
74/89.1

Including inertia device

11
74/89.11

With rack and pinion

24
74/89.12

Rectilinear rack

24
74/89.23

Including screw and nut

357
74/89.26

Alternate power path operable on failure of primary

42
74/89.25

Auxiliary drive (e.g., fluid piston, etc.) for load

46
74/89.42

Backlash

113
74/89.33

Carriage surrounded, guided, and primarily supported by member other than screw (e.g., linear guide, etc.)

106
74/89.32

Carriage surrounding, guided by, and primarily supported by member other than screw (e.g., linear guide, etc.)

120
74/89.4

Contamination related

63
74/89.41

Imperforate enclosure

50
74/89.36

Deflection related

97
74/89.38

Including means to selectively transmit power (e.g., clutch, etc.)

133
74/89.37

Limit stop

146
74/89.44

Lubrication

63
74/89.45

Manually driven

77
74/89.39

Means to selectively lock or retard screw or nut

111
74/89.29

Plural inputs, single output

43
74/89.3

Plural nuts driving shaft

18
74/89.31

Shaft and nut driven

27
74/89.35

Plural screws in series (e.g., telescoping, etc.)

74
74/89.43

Pressurized fluid introduced between nut and screw

15
74/89.34

Shaft moves through rotary drive means

95
74/89.24

Shaft shorter than nut

20
74/89.27

Single input split into two intermediate outputs that are subsequently superposed into a single output

17
74/89.28

Single input, plural outputs

62
74/89.16

Including spur gear

16
74/89.17

With rack

222
74/89.18

Curvilinear rack

72
74/89.19

With biasing means

26
74/89.14

Including worm

206
74/99R

Reciprocating to or from oscillating

103
74/101

Compound lever and slide

6
74/99A

Inclined ramp

88
74/102

Lever and slide

42
74/107

Cam connections

106
74/108

Flexible connections

58
74/105

Link connections

109
74/104

Slidable connections

97
74/103

Straight line motions

68
74/106

Toggle transmissions

52
74/109

Rack and pinion

99
74/100.1

Snap action

52
74/100.2

Plate spring

9
74/110

Reciprocating to reciprocating

362
74/70

Rotary to alternating rotary

36
74/83

Associated inertia devices

5
74/75

Crank, pitman, and lever

16
74/82

Flexible connector type

6
74/71

Mangle connections

2
74/74

Multilated gearing connections

7
74/72

Shiftable driven gear

2
74/73

Central teeth

2
74/79

Oscillating rack connections

3
74/81

Crank and pitman actuator

3
74/80

Mangle actuated

0
74/76

Reciprocating rack connections

4
74/77

Crank and pitman actuator

1
74/78

Simple crank actuator

2
74/86

Rotary to gyratory

65
74/87

Unbalanced weight

156
74/84R

Rotary to intermittent unidirectional motion

147
74/84S

Space machines

31
74/25

Rotary to or from reciprocating or oscillating

298
74/37

Belt or chain carried member

75
74/54

Cam and lever

95
74/55

Cam and slide

153
74/56

Axial cam

78
74/57

Grooved

146
74/59

Alternately rotated screw

7
74/58

Multiple screw

21
74/60

Wabbler type

290
74/53

Cam, lever, and slide

104
74/47

Crank and lever

26
74/48

Slidable connections

50
74/51

Crank and multiple pitmans

34
74/49

Crank and slide

81
74/50

Slidable connections (e.g., scotch yoke)

157
74/39

Crank, lazy-tong, and slide

6
74/45

Crank, lever, and slide

48
74/46

Rack connections

5
74/38

Crank, lever, toggle, and slide

11
74/42

Crank, pitman, and lever

129
74/43

Multiple levers

45
74/44

Crank, pitman, and slide

152
74/40

Crank, pitman, lever, and slide

46
74/41

Pump jack type

75
74/26

Head motions

17
74/36

Overcoming dead center

11
74/52

Planetary gearing and slide

95
74/29

Rack and pinion type

80
74/33

Alternately rotated pinion

23
74/34

Clutchable gears

15
74/35

Bevel

0
74/32

Segmental pinion

31
74/31

Shiftable pinion

21
74/30

Shifting rack

55
74/27

Reciprocating carriage motions

50
74/28

Phonograph type

5
74/62

Trammel-pitman

4
74/61

Unbalanced weights

205
74/23

Rotary to reciprocating and alternating rotary

25
74/24

Rotary to reciprocating and intermittent rotary

12
74/22R

Rotary to reciprocating and rotary

83
74/22A

Rotary to reciprocating or rotary

34
74/63

Rotary to rotary

147
74/66

Crank, lever, and crank

14
74/67

Crank, pitman, and crank

11
74/65

Crank, pitman, lever, and crank

4
74/68

Cranks, link connected

27
74/69

Cranks, slidable connections

22
74/64

Inertia or centrifugal transmitters

39
74/DIG.2

Miscellaneous control systems (e.g., ship propulsion, machine tools, etc.)

2
74/1R

Miscellaneous

10
74/1SS

High frequency vibratory devices

17
74/17.8

Motion transfer through imperforate flexible seal

15
74/DIG.3

Movable van or blade torque converters

0
74/DIG.12

Novikov gears

2
74/900

Particular shift pattern

45
74/DIG.9

Perpetual motion gimmicks

8
74/DIG.10

Polymer digest - plastic gears

124
74/16

Power tables and stands

28
74/11

Power take-off

95
74/15.6

From shaft extension

40
74/15.66

Change speed transmission shaft

70
74/15.63

Prime mover shaft, e.g., crank shaft

78
74/15.69

Vehicle propeller shaft

16
74/15.8

Intermediate ends of power transmitting line

31
74/15.82

Vehicle propulsion transmitting line

15
74/15.84

Between prime mover shaft and transmission

33
74/15.88

Between transmission and propeller shaft

25
74/15.86

Drive from transmission gear

61
74/15.2

Plural take-off shafts

43
74/12

Speedometer

25
74/13

Wheel take-off

32
74/15

Supported pulley

7
74/14

Wheel bed type

6
74/15.4

With independent change speed gearing

69
74/840

Rotary driven device adjustable during operation relative to its supporting structure

10
74/842

Rack and pinion adjusting means

7
74/841

Screw and nut adjusting means

19
74/813R

Rotary member or shaft indexing, e.g., tool or work turret

129
74/813C

Control means

65
74/813L

Locking means

159
74/825

Plural operators or input drives

17
74/816

Preselected indexed position

43
74/817

Sequential

23
74/820

Geneva or multilated gear drive

53
74/819

Held by torque

5
74/822

Interlocked rotator and brake

41
74/823

Diverse-type brakes

4
74/824

With axially acting friction brake

6
74/818

Skip position

8
74/821

Velocity control

16
74/827

Single revolution input effects desired fractional output

13
74/815

With locating point adjusting

19
74/826

With means to axially shift shaft

77
74/814

With safety device or drive disconnect

20
74/10R

Shaft operators (radio tuner type)

38
74/10.6

Cam and follower

19
74/10.8

Gear drive

47
74/10.85

Worm or screw

19
74/10.9

Lever and linkage drive

8
74/10.45

Plural shafts

10
74/10.5

Plural speed

5
74/10.52

Planetary

10
74/10.54

Separate operators

25
74/10.1

Preselected position

5
74/10.22

Digital dial type

4
74/10.27

Plural operator

24
74/10.29

Cam and follower

8
74/10.31

Adjustable cam

10
74/10.33

Sliding operator

89
74/10.35

Adjustable follower

12
74/10.37

Sliding operator

15
74/10.39

Rack and pinion

5
74/10.2

Rotatable stop and projectable abutment

11
74/10.15

Step by step

9
74/10.41

With detent or clicker

42
74/10A

Remote control

16
74/10.7

Tensioned flexible operator

21
74/DIG.6

Transistor-electronic gearing controls

2
74/17

Washer and wringer

2
 
 
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