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Class Information
Number: 33
Name: Geometrical instruments >
Description: This class provides for means for determining the characteristics and the mutual relation of points, lines, angles, surfaces, and solids, considered as having no properties but those arising from extension and difference of situation. It includes mechanically guided means for describing lines. Processes or methods are classified in the appropriate subclasses with instruments unless specifically provided for by a process subclass. For the most part specific subclasses are not provided for compound instruments; but an invention comprising matter classifiable in more than one specific subclass is placed in the subclass having the lowest number and cross-referenced into the subclass or subclasses having the higher number or numbers.










Class Number Class Name No. of Patents
33/DIG.2

Air

68
33/2R

Apparel

49
33/3R

Footwear

47
33/4

Laying out

3
33/5

Patterns

5
33/3C

Multiple indicating means interconnected

18
33/3B

Multiple indicating means, independent

23
33/6

Processes

17
33/3A

Single measuring or indicating means

21
33/2H

Hems and cuffs

10
33/11

Laying out

37
33/16

Adjustable

9
33/12

Patterns and charts

44
33/14

Adjustable

16
33/15

Conforming

14
33/13

Perforated

13
33/7

Leveling features

3
33/17R

Processes

60
33/17A

Pattern grading

16
33/8

Stand supported

4
33/9R

Skirts

3
33/10

Platform

5
33/9A

Powder-marking

1
33/2A

Stocking gauge

5
33/121

Area integrators

29
33/123

Electrical

18
33/122

Planimeters

7
33/124

Rolling contact

19
33/DIG.16

Clips and rafters

2
33/DIG.6

Dial indicator shock absorber

9
33/DIG.5

Differential transformer

10
33/700

Distance measuring

110
33/712

Article support integral with measuring means

37
33/755

By flexible tape

171
33/760

Combined

199
33/756

Cord type

59
33/770

Including attachment

212
33/757

Means to keep tape straight

39
33/761

Specified reel housing feature

153
33/769

Housing shape, structure or material

87
33/768

Including attachment

117
33/767

Including brake or lock

115
33/766

Inside-outside measure

6
33/765

Opening in housing for reading tape

14
33/764

Plural tapes

22
33/762

With meter

31
33/763

Including computing means

56
33/771

Specified tape material

37
33/759

Specified use

172
33/758

With adhesive or securing means

147
33/709

Convertable to another type measuring means

10
33/703

Environmental isolation

16
33/705

Sealing

26
33/704

Thermal

24
33/702

Error compensation (e.g., temperature)

139
33/710

Machine parts

38
33/711

Rolling contact

18
33/732

Of flexible material

39
33/734

By rolling contact

22
33/744

Belt type

7
33/743

Combined

6
33/738

Having rectilinear scale

2
33/747

Opposed rotating surfaces

11
33/748

Plural

3
33/749

Only three

0
33/746

Rotating and stationary surfaces

2
33/735

With computing means

38
33/736

With particular electric output or circuit

7
33/737

With recording or marking means

10
33/739

With signal means

7
33/740

With stop means

9
33/742

By clutch

0
33/741

For motor

3
33/745

Zero setting means

1
33/750

Predetermined stop or signal means

8
33/733

Supply (e.g., bolt, roll)

29
33/753

With gear means to move indicator

1
33/751

With marking means

7
33/752

With ratchet means to move indicator

0
33/754

With take up reel

7
33/772

Of length by rolling contact

54
33/776

Belt type

11
33/775

Combined

33
33/774

Having rectilinear indicator

3
33/779

Implement

14
33/780

With digital indicator

22
33/781

Including handle for implement

19
33/782

With handle

14
33/777

Inside tube

5
33/778

On running material (e.g., mill type)

13
33/773

With computing means

57
33/783

Opposed contacts

183
33/810

Beam type with scale

69
33/812

Including means to lock one contact member

18
33/811

With means to adjust one contact member

36
33/784

Digital indicator

125
33/809

Exstensible-rule type

83
33/787

Extensometer

32
33/790

Including means to clamp indicator to material

23
33/788

With circuit means

13
33/789

Including differential transformer

5
33/785

Fluid indicator

5
33/786

Liquid column indicator

5
33/813

Micrometer

48
33/831

Details (e.g., spindle or anvil adjustment, material

30
33/814

Differential screw

9
33/827

Inside measurement only

16
33/818

With additional indicator

5
33/819

Digital

27
33/820

Electrical

15
33/828

With attachment

10
33/829

Particularly adapted for measuring threaded element

14
33/817

With lock

2
33/815

With means for maintaining a constant or limited pressure on the contacts

21
33/821

With preliminary setting arrangement

7
33/822

By disengaging threaded element

3
33/826

By use of interchangeable parts of different sizes

2
33/823

Micrometer slidably mounted on a beam

1
33/824

Other contact slidable on beam

0
33/825

Spindle or micrometer slidable

1
33/830

With special scale markings

9
33/816

With wear compensation or backlash prevention means

2
33/791

Optical indicator

9
33/807

Pivoted type with scale

20
33/808

With adjustment means

2
33/806

Rectilinear indicator

29
33/792

Rotary indicator

12
33/803

Bench type

18
33/804

Lever actuator

5
33/793

Electrically controlled

15
33/794

Hand held implement

22
33/795

Beam type

13
33/796

Nonpivoted type with scale

15
33/797

Pivoted type

23
33/798

Center pivot

3
33/801

With scale

3
33/799

With screw or gear adjustment means

0
33/800

With spring adjustment means

2
33/802

Rectilinear push or pull actuator

11
33/805

With work support

8
33/701

Process

71
33/706

Scale reading position sensor (e.g., grid counting)

299
33/708

Magnetic

106
33/707

Optical

235
33/832

Single contact with a work engaging support

235
33/833

Adapted for a particular workpiece

167
33/834

Coating or surface layer thickness

40
33/836

Depth of aperture or groove

118
33/835

Reeled material

3
33/837

Fluid actuated indicator

8
33/838

Screw adjustment

13
33/713

Sounding type

9
33/719

Depth indication

32
33/721

For nongaseous material

8
33/722

Liquid (e.g. dipstick)

52
33/729

Shape of indicator

12
33/725

With cleaning means

18
33/727

With filter or vent

9
33/726

With guide

22
33/730

With holder or housing for indicator

18
33/731

Including seal

20
33/728

With lock means

12
33/723

With means to adjust measuring rod

12
33/724

Having plural contacts

1
33/716

Including electrical signal means

23
33/720

Line with weight

26
33/714

With electric control means

4
33/715

Of line

21
33/717

With sampling means

21
33/718

Hole type

0
33/DIG.8

Eccentrics

10
33/DIG.18

Flush pin gauges

1
33/501

Gauge

92
33/511

Anatomical

135
33/512

Human

501
33/514.2

Conformator

29
33/513

Dental

49
33/514

With mouth or teeth contact

61
33/515

Having a support or foot locator for body

98
33/514.1

Ring type

14
33/534

Angle

184
33/538

Fixed pivot at one end

30
33/536

Sine, cosine, or tangent bar

17
33/537

Article support

16
33/535

Squareness

40
33/600

Automotive

183
33/609

Brake

15
33/610

Drum or shoe

11
33/603

Connecting rod

10
33/604

With piston

0
33/602

Distributor point setting

2
33/611

Engine valve, valve-stem, or tappet

15
33/608

Frame alignment

104
33/607

Fuel pump, injection nozzle or valve, or carburator

8
33/601

Mechanical engine timing by piston contact in engine cylinder

6
33/605

Piston, piston ring, or crankshaft

26
33/606

Power train

13
33/612

Torsion bar

2
33/193

Axle

21
33/517

Bearing or bearing part

62
33/509

Bowling ball

16
33/510

Grip

14
33/662

Button or buttonhole

10
33/519

Cam profile or keyway

10
33/520

Center, point, distance between centers, or centerline location

209
33/555.1

Circular size

190
33/555.3

"v" type

45
33/555.2

Aperture type

45
33/555.4

Flexible band type

53
33/613

Collocating

552
33/645

Alignment

561
33/652

Burner fuel emitting member with respect to electrode spacing

3
33/644

Centering or point location

198
33/646

Clapboard lapping

21
33/647

Having tab for supporting bottom of clapboard

44
33/624

Earth contacting or working

20
33/625

Trenching tool depth

1
33/653

Insignia with respect to garment, e.g., uniform

14
33/655

Machine parts

76
33/656

Electrical dynamo

5
33/661

Plural axes center for common axis

24
33/657

Rolls, or roll and coacting part

59
33/658

Typewriter

0
33/659

Watch

0
33/660

Wheel quartering or crank arm, connecting rod or crank pin with respect to one or the other

0
33/614

Printing member registration

56
33/622

Hand stamp registration with respect to printing location on sheet to be printed

5
33/615

Photographic member or holder with respect to surface

6
33/617

Printing type or plate

23
33/618

Curved printing member with respect to its support

30
33/619

Page form registration with respect to its support or to another form on same support

2
33/621

Plate registration with respect to plate support

39
33/620

Plate registration with respect to second plate or printing sheet

19
33/616

Transparent registration sheet to align printing on member

9
33/651

Railway track or railway vehicle part

30
33/651.1

Track type

16
33/623

Sheet registering device

40
33/648

Shingle lapping gauge

33
33/649

Having tab on underside of shingle

22
33/650

Shoe, shoe part, or last

2
33/626

Tool or surrogate

93
33/628

Cutter or shaper

106
33/632

Axis of rotary cutter with respect to axis of cylindrical workpiece

4
33/636

Bit with respect to its holder

15
33/637

Boring bar holder

8
33/638

Bit with respect to workpiece or workpiece holder

76
33/640

Circular cutter with respect to workpiece or workpiece support

90
33/630

Cutter with respect to workpiece end

37
33/631

Shears

4
33/639

Drill or bit with respect to chuck or spindle holder

24
33/633

Planar blade with respect to its holder or another part

24
33/634

With respect to its rotary holder

5
33/635

Plural blade holder

6
33/629

Screw thread

2
33/641

With respect to support

20
33/627

Die

13
33/643

Millstone with respect to millstone shaft

0
33/642

Spindle or chuck with respect to workpiece or workpiece support

89
33/654

Valve

5
33/501.05

Comparator

27
33/501.06

Beam type

14
33/501.07

Three contact probes

1
33/501.6

Electric type

29
33/501.08

Hand held

22
33/501.09

Plural contact probes

17
33/501.45

Fixed size

59
33/501.3

Only four probes

5
33/501.1

Only three probes

6
33/501.2

With rotary indicator

7
33/501.4

With rotary indicator

11
33/501.5

With pivot means

11
33/545

Comparison with a standard

49
33/546

Profile

62
33/547

Optical comparison

12
33/561.1

Conformator or adjustable curve template

52
33/561.2

Flexible type

38
33/561.3

Including plural adjustment means

12
33/522

Container

32
33/501.02

Continuous gauging

80
33/501.03

Including electric means

57
33/501.04

Pivoted probe

43
33/503

Coordinate movable probe or machine

742
33/194

Door and window

105
33/521

Earth profile or road grade or shrub or tree trim guide

51
33/526

Flooring, floor or wall covering, or molding

109
33/527

Floor covering

60
33/508

Golf stance, swing or club analysis

87
33/556

Having a movable contact probe

329
33/558

Electrical switch or transducer responsive to probe or probe is part of electrical circuit

263
33/557

Plural probes

76
33/505

Having program control or an analogue to digital device

69
33/195

Hoof

15
33/542

Internal

251
33/543

Concentricity or eccentricity

67
33/544

Earth cavity or tube

78
33/544.2

Having means to actuate probe

28
33/544.3

Biased probe

58
33/544.1

Including means to rotate probe

15
33/543.1

Fluid type

12
33/544.5

Having more than two probes

34
33/544.6

Only three probes

8
33/544.4

Tapered probe

26
33/542.1

Telescoping caliper or stem gauge

21
33/501.01

Leather grading or size

1
33/507

Lens

125
33/539

Lock or key

15
33/540

Cylinder lock tumbler decoder

24
33/518

Masonry construction

66
33/196

Millstone

0
33/197

Mortise

74
33/559

Movable contact probe, per se

304
33/560

Plural probes

41
33/561

With electrical switch or transducer responsive to probe

299
33/524

Pie, cake, cheese, pizza, or sandwich portion

15
33/525

Pie, cake, cheese, pizza or sandwich portion

4
33/529

Pipe layout or fitting

138
33/530

Pitchometer

27
33/558.01

Pivoted probes (e.g., divider, caliper, etc.)

42
33/558.04

Having adjustable legs

11
33/558.05

By screw means

0
33/558.09

Having opposed threads

1
33/558.07

Median

0
33/558.08

Quick adjustment

0
33/558.1

Rotatable nut

0
33/558.06

Tangent

0
33/558.5

Median handle

4
33/558.4

Pivoted probe

8
33/558.2

Plural legs or contact probes

16
33/558.03

Point parallelizing

3
33/558.02

Proportional

11
33/558.3

Removable probe

4
33/548

Plural tests

46
33/516

Point reproducer

6
33/541

Postage stamp or mechanical coupling gauge

6
33/572

Probe support

83
33/663

Proportional line segmenter

11
33/665

Dividers

2
33/664

Parallelogram type

12
33/199R

Screw thread

116
33/199B

Bench type

17
33/679.1

Special scale markings

98
33/200

Spectacle

131
33/533

Straightness, flatness, or alignment

282
33/567

Surface plate or gauge block

97
33/567.1

Adjustable gauge block

14
33/531

Taper

29
33/532

External

20
33/506

Target, weapon, or weapon projectile

55
33/562

Template

492
33/563

Single sheet type

170
33/564

Alphabetical or numerical symbol type

28
33/565

Geometrical figure, three dimensional to two dimensional figure or curve

59
33/566

Line or guide

114
33/201

Tool

46
33/202

Saw

29
33/501.7

Tooth testing (e.g., gear, rack)

27
33/501.8

By electrical comparison

11
33/501.9

Including a probe

35
33/501.13

By pair of engaged gears

22
33/501.14

By probe

22
33/501.16

Including a master

5
33/501.17

Plural probes

3
33/501.18

Only two

8
33/501.15

Teeth spacing

8
33/501.19

By rotary master

17
33/501.11

Implement type

8
33/501.12

Internal

3
33/528

Wall panel outline marker for utility

152
33/203

Wheel

131
33/203.18

Axle, vehicle, or wheel supported

310
33/203.19

Plane and radius

30
33/203.2

Trammel

15
33/203.15

Floor supported, wheel contacting

52
33/203.16

Plane and radius

22
33/203.17

Trammel

10
33/203.21

Trammel

5
33/203.11

Tread contour

17
33/203.1

Watch

0
33/203.12

With wheel supporting means

88
33/203.14

Pivoted or sliding scuff board

30
33/203.13

Roller or drum

37
33/502

With calibration device or gauge for nuclear reactor element

231
33/504

With computer responsive to contact probe

172
33/523

With conveying wheel support

24
33/523.1

For railway track

22
33/523.2

With recording means

6
33/666

With point marker

91
33/678

Angularly adjustable about an axis

5
33/667

For door or drawer hinge, pull or securing means

23
33/668

For windup tape or tape casing, or marker attachment for tape

85
33/670

Having marker centering means

17
33/671

For marking center of a hole

6
33/673

Having adjustable workpiece-contacting centering means

4
33/674

Pivoted caliper workpiece-contacting means

3
33/675

Rack and pinion operating workpiece-contacting means

6
33/672

Having diverging-angle bisector workpiece-contacting members with marker on angle bisector

9
33/676

Having workpiece-contacting tapered centering means

0
33/677

Having workpiece-contacting device with marking to align with workpiece marking

6
33/679

Marker located with respect to two different directions

13
33/669

Plural markers

38
33/571

With scale

16
33/549

With support for gauged article

223
33/550

Concentricity

125
33/555

Having indicator of probe position or movement

104
33/551

Profile

202
33/552

Having plural contact members

111
33/553

Member contacts successive points on the article

75
33/554

With recording of contact member position at each point on the article

76
33/568

Work support adjustment

132
33/569

Rotary

32
33/570

Pin and slot type

8
33/573

Work support

114
33/300

Indicator of direction of force traversing natural media

18
 

Indicator of direction of force traversing natural media

 
33/347

Attaching means (i.e., adhesive, magnetic or vacuum viewing aid)

72
33/304

Borehole direction or inclination

158
33/312

Electrical telemetering to read-out

49
33/305

Etching or marking liquid determines orientation

5
33/306

Fluid (e.g., drilling fluid, etc.) responsive

5
33/307

Varied pressure or pressure pulses representative

16
33/313

Inclination and direction indications

114
33/314

Indicator image projected on sensitized record (e.g., photographic, etc.)

8
33/308

Pendulum mounted or directed marker

17
33/310

Includes magnetic directional indicator

8
33/309

Radiant energy or electrically produced marking

6
33/311

Record movable to marking position

5
33/354

Combined

72
33/351

Diverse directional indicator

11
33/352

Includes magnetic compass

44
33/353

Line plumb and bubble level

6
33/316

Gyromagnetic compass

22
33/317R

Electrical telemetering

5
33/317D

Differential disparity correction

5
33/318

Gyroscopically controlled or stabilized

68
33/328

Attitude indicator (i.e., pitch or bank)

26
33/329

Gyroscope mounted, lever indicator and skyplate

6
33/330

Spherical indicator

7
33/320

Geographic position indication (i.e., latitude or longitude)

22
33/324

Gyroscopic compass

80
33/327

Fluid, suspension or control

26
33/326

Selective correction for deviation

26
33/325

Transmission system for remote readout

5
33/319

Magnetic compass

11
33/321

Plural gyroscopes (e.g., reference platform, etc.)

55
33/323

Directive gyroscope stabilized by auxiliary gyroscope

5
33/322

Diverse indications

5
33/365

Level or plumb, terrestrial gravitation responsive

123
 

Level or plumb, terrestrial gravitation responsive

 
33/376

Add-on-type reference-surface section

35
33/368

Arresting means for movable indicator

3
33/366.11

Electrically actuated signal or indicator

126
33/366.15

Fluent sensor

40
33/366.17

Having buoyant control element

15
33/366.18

Having fluent material reactive circuit control element (e.g., inductive)

15
33/366.19

Capacitive sensor

36
33/366.16

Having light or radiant energy detecting circuit control element

56
33/366.21

Having resistive or contact circuit control element

39
33/366.22

By multiple circuit paths through conductive fluid

28
33/366.23

Having light or radiant energy detecting circuit control element

49
33/366.24

Having pendulum sensor

83
33/366.25

Having reactive circuit control element (e.g., inductive, capacitive)

35
33/366.26

Having resistive or contact circuit control element

25
33/366.27

Indicator details

25
33/366.12

Plural nonparallel axes or plural orientation sensors

86
33/366.13

With compensation of sensed quantity (e.g., acceleration)

21
33/366.14

With pulse or digital processing circuit component

64
33/369

Line level type

16
33/377

Liquid type, upper surface utilizing

67
33/379

Bubble

197
33/380

Adjustable size

1
33/389

Bubble-position indicia on reference-surface section

26
33/384

Liquid container adjustable on reference-surface section

45
33/388

Adjustment indicium

16
33/385

Cam-type adjuster (e.g., gear, screw, wedge, etc.

15
33/387

Adjustment indicium

8
33/386

Opposing spring

10
33/381

Plural

57
33/382

Coacting at an angle

50
33/383

Relatively adjustable

13
33/390

Universal, or plural indicating sections on container

70
33/378

Float or piston

23
33/391

Pendulum

141
33/397

Gimbal mounted

20
33/399

Indicium adjustably fixed to reference-surface section or to weight

12
33/400

Cam-type adjuster (e.g., gear, screw, etc.)

0
33/396

Liquid buoyed

31
33/402

Means limiting swing

21
33/401

Motion transmitting mechanism drives indicator (e.g., gearing, magnetic coupling)

14
33/392

Plumb line (i.e., flexible, line suspended plumb bob)

78
33/393

Line take-up reel

17
33/394

Spring biased

10
33/395

Plural, coacting in intersecting planes

19
33/398

Weight, variable quantity or center of gravity

14
33/367

Plural, similar, separable liquid columns system

63
33/374

Relatively movable, coacting, reference-surface sections

75
33/375

Affecting level or plumb indication

27
33/370

Work, or workman, attaching means

86
33/371

Requiring no modification of the work

115
33/372

Elastic bias type clamping

34
33/373

Encircling clamp, loop, or strap

48
33/355R

Magnetic field responsive

207
33/355D

Dip aligning needle

10
33/363R

Electrical telemetering

31
33/363L

Electrical contact pickoff

2
33/363N

Electrolytic liquid pickoff

2
33/363Y

Fluid jet or pressure pickoff

1
33/363K

Photoelectric pickoff

44
33/363Q

Resistance, capacitance, or inductance pickoff

19
33/361

Electro-magnet or inductor (e.g., flux valve, etc.)

179
33/362

Inductor rotated or vibrated

11
33/356

Error indicator, preventor, or compensator

286
33/357

Error-producting-field minimizing

47
33/358

Adjustable positioned permanent magnet

9
33/359

Pivoted adjustment

4
33/364

Liquid buoyed magnetic needle

56
33/360

Utilizing cathode-ray tube or photoelectric cell

5
33/301

Process

21
33/302

Borehole or tube interior study

70
33/303

Including calculation or comparison

16
33/338

Railway rail spacing and inclination

34
33/333

Structurally installed including relation to feature thereof

103
33/334

Hand implement (e.g., tool, rifle, camera, etc.)

105
33/315

Thermally sensitive

6
33/335

Vehicle running gear, or headlight, inclination

36
33/337

Axle supported

11
33/336

Wheel supported

39
33/343

With angle or shape determination

26
33/339

With cord-type straight-line guide or holder therefor

24
33/344

With damper or governor for sensor

14
33/346

Fluid

26
33/345

Magnetic

19
33/342

With independent linear measurement

17
33/332

With marker

14
33/340

With measurement in plural directions or of shape

7
33/341

With variable angle indication

11
33/349

With preselected direction indicator

30
33/350

With protector or shock absorber

8
33/331

With recorder

1
33/348

With viewing aid (i.e., illuminator or illumination director)

60
33/348.2

Spirit level electric illuminator

27
33/DIG.4

Interferometer

7
33/DIG.1

Magnetic

174
33/DIG.11

Materials

10
33/DIG.12

Mechanical expedients

1
33/1R

Miscellaneous

20
33/1A

Aerial photo

17
33/1AP

Angle polysection

9
33/1N

Angular measurement

263
33/1PT

Angular position transducer

365
33/1F

Article subdividing

12
33/1CF

Character forming

1
33/1K

Copy aids and perspective drawing

52
33/1C

Curve and chart analysis

45
33/1E

Dip and strike

13
33/1H

Earth

110
33/1D

Indexing and verniers

21
33/1BB

Inspection

84
33/1G

Layout

107
33/1DD

Light direction

16
33/1LE

Line engaging

70
33/1MP

Multipolar

22
33/1L

Optical readout

20
33/1B

Printed sheet

115
33/1SP

Radius and spiral

2
33/1Q

Railroad

76
33/1CC

Remote point locating

47
33/1HH

Seismic

14
33/1SB

Simulating calculators

38
33/1SC

Astronomical

9
33/1SD

Flat multisheet

75
33/1SA

Spherical

4
33/1P

Sonic wave

3
33/1S

Statistical measurements

5
33/1AA

Tables-layout

15
33/1T

Theodolite-optical readout

13
33/1V

Volume measurement

40
33/1M

X-y motion

547
33/DIG.10

Outlet box

147
33/DIG.3

Photoelectric

24
33/DIG.15

Piston position indicator

24
33/DIG.17

Piston ring and bearing race gauging

13
33/574

Point marker guide

31
33/575

Button or buttonhole marker guide

2
33/576

With workpiece support

3
33/579

For marker movement in direction of marker axis

9
33/578

For plural markers

16
33/577

With support for workpiece

9
33/DIG.9

Rectangular proportioner

23
33/DIG.7

Ribbon and wires

4
33/18.1

Scriber

226
33/26

Compound curved and straight-line

32
33/27.01

Curved line

47
33/27.04

Circle forming frame support

9
33/27.06

Circle forming pin and jointed arm

5
33/27.05

Circle forming roller

4
33/27.07

Circle forming rotating table

9
33/27.02

Compass

52
33/27.03

Beam type

113
33/27.031

With scoring means

17
33/27.032

Including scale

25
33/27.033

With screw adjustment means

1
33/27.08

Conic section

1
33/30.1

Ellipsograph

28
33/30.5

Flexible cord type

6
33/30.4

Harmonic component

6
33/30.3

Pattern follower

2
33/30.2

Pivoted circular pattern

6
33/30.7

Planetary scriber arm

5
33/31

Right-angle guides

22
33/30.6

Sliding leg

10
33/28

Lens

49
33/27.12

Pattern follower

25
33/27.11

Rose engine

37
33/27.1

Sine curve

3
33/27.09

Spiral

3
33/29

Stair

2
33/21.1

Curved surface

33
33/22

Pantographic

3
33/21.3

Pipe junction

24
33/21.2

Spherical

8
33/21.4

Tumbler engraving

2
33/19.1

Graduating

2
33/19.3

Circular

1
33/19.2

Straight-line

8
33/23.01

Pantographic

25
33/23.09

Human form

1
33/24.1

Multiplane

5
33/24.3

Coaxial styli

2
33/24.2

Pendulum

6
33/23.05

Opposite replica

4
33/25.1

Parallelogram type

25
33/25.4

Progressive lettering

5
33/25.2

Simple parallelogram

8
33/25.5

Tandem pantographs

3
33/25.3

Universally parallel bar

1
33/23.08

Pattern follower

15
33/23.07

Pattern grading

0
33/23.06

Plural reproduction

2
33/23.02

Single beam

7
33/23.04

Sliding pivot

7
33/23.03

Superposed carriages

18
33/23.1

Telautograph

1
33/23.11

Template and stylus details

26
33/41.1

Parallel line

12
33/42

Edge guided

183
33/43

Bevel set

3
33/44

Multimarkers

10
33/41.2

Lettering guide

5
33/45

Machine type

2
33/41.4

Multi-marking

24
33/41.5

Profile tracing

15
33/41.3

Rotary marker

4
33/41.6

Single marker with spacing guide

15
33/18.3

Perspective drawing

10
33/20.1

Sight-line controlled

5
33/20.2

Course tracking

0
33/20.3

Perspective view tracing

6
33/20.4

Stereoscopic mapping

12
33/32.1

Straight-line

34
33/33

Clapboard

3
33/34

Ink

9
33/39.1

Blank space

5
33/39.2

Hand pen

1
33/37

Rotary markers

9
33/38

Blank space

2
33/35

Traveling markers

5
33/36

Rotary

11
33/32.3

Moving scriber

44
33/32.4

And sheet

12
33/32.2

Portable

32
33/40

Set shift

2
33/32.7

Sheet support and handling details

6
33/32.5

Stationary scriber and moving support or sheet

5
33/32.6

Moving sheet

13
33/18.2

Writing

32
33/DIG.14

Spline and gear

6
33/227

Straight-line light ray type

130
33/229

Aerial bomb sight

1
33/230

Gyroscopically stabilized

2
33/231

With ground speed indicator

0
33/286

Alignment device

657
33/289

Game ball (e.g., football, etc.)

36
33/287

Railway track

73
33/288

Vehicle chassis, running gear or headlamp

375
33/262

Body related

32
33/268

Celestial

66
33/269

Time computing

19
33/270

Including gnomonic indicator (e.g., sundial, etc.)

63
33/271

And compass

17
33/275R

Combined

34
33/275G

With gyroscope

15
33/285

Horizontal angle measurer

51
33/299

Instrument support

65
33/290

Level (i.e., surveyor's type)

189
33/291

Self leveling

114
33/292

With tubular sighting means (e.g., telescope, etc.)

48
33/232

Marine or aircraft ground speed indicator

2
33/276

Multisight line

42
33/277

Common viewpoint

56
33/278

Relatively movable

14
33/279

Angularly and rectilinearly

10
33/280

Each separately adjustable

10
33/228

Process

86
33/297

Reticle

42
33/298

Adjustable

34
33/293

Rod or target

196
33/296

Extensible rod sections

46
33/294

Self computing type rod

28
33/295

With leveling or plumbing adjunct

39
33/263

Structurally installed

50
33/265

Archery bow

506
33/266

Camera

15
33/264

Vehicle

149
33/281

Vertical and horizontal angle measurer

88
33/282

Vertical angle

34
33/283

Having gravity responsive indicating means (e.g., pendulum, etc.)

61
33/284

Including distance finding feature

25
33/272

With magnetic compass

21
33/273

And level or plumb

25
33/274

With straight edge instrument or chart

14
33/267

With telemetric means

9
33/403

Straightedge type

57
33/430

Base attached

81
33/443

Both ends connected

34
33/444

By cord and roller

15
33/445

By rack and pinion

4
33/446

One end moveable along straightedge

5
33/436

Linear counter rule

3
33/431

Navigation

46
33/432

Perspective drawing

26
33/434

With parallel straightedge arrangement (i.e., drafting machine)

18
33/433

With t-square straightedge

6
33/435

Rotary base

15
33/447

Set shift, positively

12
33/438

Universal parallelism arrangement

42
33/441

Double linkage

4
33/442

With counterbalance

0
33/439

Wheel and band

3
33/440

With counterbalance

5
33/437

With guide or catch for t-square type

19
33/411

Clapboard marking

9
33/451

Combined with level

207
33/413

Cord type

61
33/414

With chalking feature

104
33/415

Multiplane angularly adjustable

17
33/416

Roof framing

10
33/417

Having rafter cut indicia (e.g., pitch, rise, etc.)

19
33/495

Pivot joints

25
33/496

180 degree limit

3
33/497

Locking

6
33/498

90 degree limit

2
33/499

Locking

11
33/500

Locking

18
33/482

Plural nonadjustable straightedges forming nonright angles

36
33/474

Plural straightedges nonadjustably fixed at right angles (e.g., t-square, triangles, squares)

133
33/478

Folding or separable

31
33/477

Lettering guide

6
33/481

Multiplane

61
33/479

T-square

29
33/480

Try square

20
33/475

With right angle truing adjustment

6
33/476

With special scale markings

69
33/452

Plural straightedges, relatively moveable

44
33/455

Intercontrolled bevel blades

13
33/456

Multipivoted straightedges

32
33/458

Folding rule type

23
33/457

Navigational

18
33/459

Two straightedges pivoted at the ends of a central straightedge

7
33/460

At least one pivot is sliding

6
33/461

Central straightedge longitudinally adjustable

5
33/462

Central straightedge longitudinally adjustable

9
33/463

Three straightedges forming a triangle

10
33/454

Parallel type

22
33/465

Single pivot

73
33/466

Handsaw attachment

0
33/467

Lettering guide

1
33/472

Pivoted straightedge and sliding nonpivoted

15
33/473

Sliding pivotal adjustment

27
33/468

T-head with pivoted straightedge

12
33/469

Locking

12
33/470

Sliding

9
33/471

With angle indicating means

136
33/464

Sliding

109
33/453

Triangulation (e.g., solving trigonometric functions)

12
33/483

Rules

74
33/492

Edge details

42
33/493

Particular material

31
33/494

Special scale markings

191
33/484

With attachment

71
33/485

For performing diverse function

81
33/489

For supporting above work surface

17
33/486

Index

14
33/487

For subdividing

8
33/488

Optical (e.g., magnifying)

23
33/490

Located on end

7
33/491

Selectable

10
33/412

Shaft aligning

93
33/429

Square and fixed straightedge

51
33/418

Square and pivoted straightedge

28
33/419

And sliding

27
33/422

Having circumferential pivot, only

4
33/420

Straightedge as a hypotenuse of the square

6
33/421

Having angle or slope indicating means

12
33/423

With indicia for rafter cuts

18
33/424

With protractor

30
33/425

And sliding straightedge

5
33/426

Located on straightedge

7
33/427

Square and sliding nonpivotal straightedge(s)

69
33/428

Straightedge bisects right angle of square (i.e., centering square)

5
33/404

Wall guide and plumb (e.g., building construction)

61
33/406

Adjustable vertically

14
33/405

Batter board type

14
33/407

Building is the vertical support

29
33/408

Connected to brick

29
33/409

By line tension only

16
33/410

Having adjustable clamp

19
33/448

With means for moving straightedge over a surface

13
33/449

By rollers

26
33/450

Set shift

7
33/DIG.19

Thermal expansive

15
33/DIG.20

Tile

41
33/DIG.13

Wire and strain gauges

55
33/DIG.21

With laser

454
 
 
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