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Class Information
Number: 212
Name: Traversing hoists >
Description: Apparatus and methods for lifting a load and shifting it laterally by an elevating means applied through a support from which a load engager is suspended and including one of the following:










Class Number Class Name No. of Patents
212/294

Adjustable to transport or nonuse position (e.g., collapsible)

87
212/298

Collapsible inverted "v" frame supports boom rigging

50
212/299

Collapsible or foldable boom

115
212/300

Vertically swinging boom having pivoted sections

124
212/295

Crane boom supported by foldable or collapsible tower

19
212/296

Extensible tower of relatively sliding sections

36
212/297

Hydraulically pivoted tower or tower sections

16
212/301

Vehicle stablizing means

69
212/306

Boom or mast attached

39
212/302

Lowered from vehicle body (e.g., outrigger)

60
212/303

Gear or screw drive to extend foot

22
212/304

Hydraulic means to extend foot

139
212/305

Pivoted lever or link to extend foot

62
212/347

Boom or mast

98
212/348

Extensible by sliding sections

100
212/349

By fluid pressure

84
212/350

Having bearing means between extensible sections

67
212/292

Boom position lock

84
212/166

Closure remover

45
212/901

Dolley-type cranes

66
212/169

Ground wheel operated

0
212/199

Having boom shiftable vertically along a linear path

15
212/204

By mounting on vertically extensible support

11
212/203

Fluid actuated

16
212/201

Length of hoisting cable between boom and load decreases automatically as boom is raised

5
212/200

Movable along nonvertical rectilinear path

8
212/202

Vertically spaced fastening means along boom support

14
212/170

Having clutch or variable speed transmission

3
212/174

Including means to selectively couple plural hoist functions to common power shaft

3
212/172

Power takeoff

3
212/171

Traveling bridge

2
212/173

Variable speed transmission

4
212/195

Having counterweight or counterbalancing means

118
212/196

Counterweight movable relative to load support

84
212/197

Along rectilinear path

41
212/198

On wheeled carriage

34
212/223

Having horizontally swinging boom or bridge

32
212/245

And means to swing boom horizontally

32
212/247

Gear drive

36
212/248

Including rack or worm

15
212/249

Human or animal powered

4
212/246

Including flexible member driving gear or pulley having axis collinear with boom pivot

9
212/232

And vertically swinging

46
212/242

Having specific engager for load

12
212/243

Grab

4
212/235

Including means for sluing boom as it is swung vertically

3
212/237

Including means to swing boom vertically

6
212/239

Flexible cable

44
212/240

Having passage for luffing cable through boom supporting member

4
212/241

Human or animal powered

3
212/238

Fluid actuated ram

65
212/236

Including plural actuating means converging toward boom tip to effect both horizontal and vertical swinging

4
212/233

Plural booms

20
212/234

With adjacent load-supporting rack

6
212/224

Boom mounted for guided horizontal translation (e.g., trolley mounted)

21
212/230

Extensible by movement of boom or boom segment along longitudinal axis thereof

39
212/231

And vertically swinging

107
212/250

Having fluid ram directly actuating load cable or sheave therefor

16
212/252

Having passage for hoist cable through boom supporting member

16
212/253

Having specific bearing structure

97
212/251

Having specific engager for load

16
212/225

Having trolley thereon

39
212/228

And means acting independently of hoist mechanism to shift trolley

8
212/227

And vertically swinging

15
212/226

Having vertical support remote from pivot (i.e., swinging bridge)

16
212/175

Having means facilitating assembly or disassembly

85
212/177

Of boom sections

76
212/178

Of counterweight from hoist

49
212/176

Of sectional vertical support for boom

25
212/179

Of traversing hoist from support

90
212/180

Vehicle support

162
212/181

And having motor to swing boom

22
212/272

Having means to prevent or dampen load oscillations

56
212/273

Antisway (i.e., horizontal movements)

65
212/275

By cyclic control of trolley acceleration or deceleration

69
212/274

By triangulation of load cables

95
212/291

Having operator support or cab

44
212/276

Having random condition sensor combined with an indicator or alarm or controlling means or disabling means

117
212/280

Boom movement stops responsive to overtravel or proximity to powerline

45
212/281

Hoisting stops upon load being raised to a predetermined position (e.g., anti-two block)

55
212/278

Means determining overloading produced by load (e.g., strain gauges)

129
212/277

Senses crane tilt (e.g., outrigger sensors)

37
212/279

Sensor regulates counterweight or counterbalancing means

30
212/293

Having snubber or boom backswing stop

15
212/255

Having vertically swinging boom

33
212/256

And compensating means to maintain horizontal movement of load

10
212/257

And trolley

18
212/264

Extensible by movement of boom or boom segment along longitudinal axis thereof

75
212/260

Having means to swing boom vertically

13
212/262

Flexible cable

55
212/263

Human or animal powered

10
212/261

Fluid actuated ram

115
212/259

Having specific engager for load

20
212/258

Protruding laterally from vehicle

28
212/270

Methods

146
212/271

Miscellaneous

54
212/71

Overhead

30
212/72

Cable, ship coaling type

4
212/76

Cable

36
212/86

Automatic stop

7
212/122

Carriage holders, track clamp

20
212/87

Draft-rope, hoist-rope traverse

14
212/91

Cable return

3
212/88

Divided hoist-rope

1
212/92

Gravity return

4
212/93

Cable

1
212/89

Hook-lowering

16
212/90

Running track

3
212/94

Draft-rope, independent traverse

11
212/95

Anchored hoist-rope

1
212/96

Hook-lowering

6
212/97

Load suspension

10
212/98

Hoist, carry and lower

12
212/115

Ratchet sheave

0
212/106

Rope catch

2
212/108

Pivoted

2
212/109

Double

0
212/107

Sliding

0
212/110

Rope grip

4
212/114

Coacting sheave

3
212/111

Variable elevation

1
212/112

Carriage release

0
212/113

Side draft

0
212/99

Running rope

1
212/100

Sheave catch

5
212/101

Pivoted cable extension

0
212/102

Sheave-frame catch

1
212/104

Pivoted

3
212/105

Double

1
212/103

Sliding

0
212/116

Trips, stops and knockers

2
212/77

Load-handling

8
212/78

Draft-rope

2
212/79

Dumping

1
212/80

Double tackle

4
212/81

Grab

3
212/82

Sling

1
212/83

Load suspension

17
212/84

Grab

7
212/85

Sling

1
212/123

Pulley changers

0
212/117

Rope carriers

3
212/118

Cable stop-operated

1
212/120

Carrier sheave-operated

2
212/121

Permanently spaced

4
212/119

Trolley-supported

1
212/336

Nonmotor traverse

6
212/341

Fluid hoist

4
212/342

Lever hoist

3
212/337

Nonmotor hoisting

9
212/338

With load-handler

10
212/339

Discharging

0
212/340

Automatic

0
212/328

Self-propelled trolley

25
212/329

Automatic traversing stop

11
212/330

Load-handling

27
212/331

Electric

38
212/332

With grab

16
212/333

With guide bar

14
212/334

With grab

12
212/335

With ladle

3
212/73

Shiftable track

14
212/74

Longitudinally movable

8
212/75

Tilting

4
212/343

Surface vehicle

14
212/345

Drum

24
212/344

Self-propelled

64
212/346

Trolley having wheels which contact different sides or planes of a beam

29
212/307

Ship mounted or floating (e.g., a crane fixed to a platform adapted to float)

58
212/309

Having horizontally and vertically swinging boom

34
212/310

Cable actuated horizontally and vertically

8
212/311

Plural booms

0
212/308

Including counterweight or means to compensate for list, trim or skew of vessel

68
212/312

Traveling bridge

83
212/323

Bridge mounted motor for load lifting

30
212/322

Bridge mounted motor for trolley traversal via cable means

16
212/313

Flexible

5
212/318

Having horizontally swingable track- or load-rotating means on trolley

23
212/319

Having load engager mounted for guided vertical movement beneath trolley

83
212/316

Having plural trolleys

55
212/327

Having specific engager for load

41
212/324

Having vertical supporting legs (e.g., gantry)

69
212/326

Having specific engager for load

42
212/325

Overhanging end

67
212/314

Having vertically adjustable track

29
212/317

Having vertically or horizontally swinging boom on bridge or trolley

19
212/320

Motor fixed to bridge-supporting structure

13
212/315

Supporting second traveling bridge

25
212/321

Trolley mounted motor for trolley traversal via cable means

8
212/167

With haul-in line

20
212/168

With means to project load engager beyond end of boom

25
212/282

With mechanical indicator

20
212/283

With weight indicator

13
212/284

With motor control

41
212/286

Cyclic operation

29
212/290

In control cab

18
212/287

Manual fluid valve actuator

21
212/288

Plural fluid motors

26
212/289

Controlled by common actuator

20
212/285

Remote control or at dual control positions

79
 
 
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