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Class Information
Number: 254
Name: Implements or apparatus for applying pushing or pulling force >
Description: This class includes implements or apparatus for applying a pushing or pulling force directly to either (a) an object to be moved, or (b) a generally stationary object upon which pressure or tension is to be exerted. It comprises jacks (including lifting jacks, floor jacks, and analogous implements), extracting apparatus (including stump pullers and nail extractors), tensioning apparatus (including belt, carpet and wire stretchers), hoist trucks, and cable-type load hauling or hoisting apparatus. Also included in this class is the subcombination of a cable guide which (1) is a component of, or used in combination with, an implement or an apparatus of this class, and (2) is intended to guide a cable which is directly connected to either the object or an object-supporting or -engaging member.










Class Number Class Name No. of Patents
254/901

Antifriction means for cable pulling drum

14
254/264

Apparatus for hauling or hoisting load, including driven device which contacts and pulls on cable

87
254/265

Device includes driven, flexible, cable contacting belt

16
254/266

Device includes rotatably driven, cable contacting drum

141
254/365

Drive includes clutch mechanism having coaxial, rotatable, relatively shiftable axially, power transmitting components

35
254/368

Components having frictional contact surface

26
254/367

Fluid operated actuator shifts component

13
254/366

With frictional brake assembly mechanically linked to, and operationally influenced by, clutch

21
254/370

Drive includes clutch mechanism having rotatable, radially shiftable, power transmitting component

9
254/363

Drive includes contacting friction wheels having noncollinear axes of rotation

4
254/362

Drive includes electric motor

138
254/360

Drive includes expansible, noncombustible, fluid motor (e.g., air, steam)

52
254/342

Drive includes intermeshing gears

117
254/346

Drive also includes clutch mechanism having coaxial, rotatable relatively shiftable axially, power transmitting components

57
254/350

Components having frictional contact surface

34
254/351

Truncated cone shaped

9
254/349

Fluid operated actuator shifts component

11
254/348

With additional axially shiftable clutch mechanism mechanically linked to, and operationally influenced by, first clutch

10
254/347

With frictional brake assembly mechanically linked to, and operationally influenced by, clutch

26
254/355

Drive also includes clutch mechanism having rotatable, radially shiftable, power transmitting component

9
254/352

Drive also includes ratchet wheel and driving pawl

47
254/353

Plural driving pawls

17
254/354

Attached to rotatable disk or shaft

14
254/344

Epicyclic gear arrangement including sun, intermediate (e.g., planet), and ring gears

107
254/345

Shiftable into and out of intermeshing engagement

46
254/356

With means for preventing or retarding rotation of drum in at least one direction

46
254/357

Ratchet wheel or formation and locking pawl

41
254/343

Worm and worm wheel

35
254/361

Drive includes noncompressible fluid motor or pump

97
254/341

Drive includes rack and either pinion or pinion segment

2
254/369

Drive includes ratchet wheel and interengaging driving pawl

49
254/358

Drive includes sprocket wheel and chain

74
254/359

Either drive or cable return means includes power transmitting pulley and rope or belt

10
254/364

Either drive or cable return means includes spring

30
254/270

Having cable contacted, supported, or attached mechanism for generating control impulse to retarding means or drive

59
254/271

With cable contacting component, on or adjacent to circumference of drum, shifted by segment of wound cable

25
254/272

With cable deflecting or path defining component shifted by cable when tension varies

25
254/273

Electricity or fluid utilized in transmittal of impulse

45
254/268

Having mechanism, actuated by changes in position of drum relative to another component of device, for generating control impulse to rotation retarding means or drive

16
254/276

Having mechanism, linked to drum and actuated by number of drum rotations, for generating control impulse to rotation retarding means or drive

48
254/274

Having mechanism, linked to drum or rotating element of drive, for generating control impulse to rotation retarding means or motor when torque on drum varies

38
254/275

Electricity utilized in transmittal or impulse

48
254/374

Having noncircular or varying diameter, cable contacting perimeter

45
254/339

Having plural, distinct drive sources or discrete drive trains

13
254/340

Including two or more motors

15
254/333

Having pressure element spaced from drum to confine cable thereagainst

92
254/334

Having rotatable, cable guiding, pulley wheel element spaced from drum

90
254/335

Element repositionable relative to drum

52
254/336

Plural elements

50
254/337

Cable supported

42
254/338

Plural elements

75
254/267

Having rotational speed governor for generating control impulse to rotation retarding means or drive

59
254/269

Having stationary mechanism, actuated by load or other obstruction on and traveling with cable, for generating control impulse to rotation retarding means or drive

42
254/375

Including means for preventing or retarding rotation of drum in at least one direction

79
254/377

Fluid resistance brake

39
254/378

Frictional brake assembly having rotating, wheel structure and shiftable shoe or band

69
254/379

Having fluid actuator for shifting shoe or band

41
254/376

Ratchet wheel or formation and locking pawl

79
254/382

Including static receiver spaced from drum for storing pulled cable

37
254/278

Plural drums or drum with plural distinct sections

114
254/293

Each drum having plural, distinct drive sources or discrete drive trains

9
254/294

Having common drive source or mechanically interlinked drive trains

28
254/317

Including clutch mechanism in drive having coaxial, rotatable, relatively shiftable axially, power transmitting components

8
254/319

Components having frictional contact surface

5
254/318

With frictional brake assembly mechanically linked to, and operationally influenced by, clutch

1
254/313

Including contacting friction wheels having noncollinear axes of rotation in drive

5
254/316

Including electric motor in drive

10
254/314

Including expansible, noncombustible, fluid motor in drive (e.g., air, steam)

5
254/295

Including intermeshing gears in drive

19
254/299

Also including clutch mechanism having coaxial, rotatable, relatively shiftable axially, power transmitting components

8
254/304

Components having frictional contact surface

2
254/305

Truncated cone shaped

0
254/303

Fluid operated actuator shifts component

11
254/301

With additional axially shiftable clutch mechanism mechanically linked to, and operationally influenced by, first clutch

1
254/302

Alternately transmitting power

4
254/300

With frictional brake assembly mechanically linked to, and operationally influenced by, clutch

3
254/309

Also including clutch mechanism having rotatable, radially shiftable, power transmitting component

6
254/306

Also including ratchet wheel and driving pawl

0
254/307

Plural driving pawls

1
254/308

Attached to rotatable disk or shaft

1
254/297

Epicyclic gear train having sun, intermediate (e.g., planet), and ring gears

18
254/298

Shiftable into and out of intermeshing engagement

6
254/310

With means for preventing or retarding rotation of one or more drums in at least one direction

15
254/296

Worm and worm wheel

7
254/321

Including means for preventing or retarding rotation of one or more drums in at least one direction

13
254/322

Frictional brake assembly having rotating, wheel structure and shiftable shoe or band

6
254/315

Including noncompressible fluid motor or pump in drive

13
254/312

Including power transmitting pulley and rope or belt either in drive or in cable return means

10
254/320

Including ratchet wheel and interengaging driving pawl in drive

2
254/311

Including sprocket wheel and chain in drive

13
254/283

Having rotatable, cable guiding, pulley wheel element spaced from drums

22
254/284

Element repositionable relative to at least one of the drums

20
254/285

Plural elements

59
254/286

Plural elements

50
254/287

Juxtaposed to cable at single locus

10
254/290

Plural, distinct, drive motors

22
254/292

Electric

16
254/291

Noncompressible fluid

27
254/288

With means affixing at least one drum to supporting base and allowing movement between drum and base

17
254/289

Movement engages or disengages drum from drive

2
254/279

With vehicle for supporting at least one drum

26
254/282

Drive for at least one drum includes motor of vehicle

7
254/280

Having rotatable, cable guiding, pulley wheel element spaced from drums

26
254/281

Element repositionable relative to at least one of the drums

24
254/383

With cable guard structure extending partly around and closely adjacent to drum

41
254/277

With fluid or resilient shock absorbing or tension maintaining means attached to, supported by, or supporting guiding structure for cable

98
254/329

With means affixing drum to supporting base and allowing relative movement therebetween

38
254/332

Including pivotal, rotational, or swivel connection between drum and base

57
254/330

Movement engages or disengages drum from drive

4
254/331

Movement occurs along line collinear with rotational axis of drum during pulling of cable

33
254/371

With means on circumference of drum, or relatively movable drum components, for grasping cable

101
254/373

With pickup or pushing means on circumference of drum for cooperating with structure attached to, or formed on, end of cable

4
254/380

With portable housing for drum and hand manipulated means for removably fastening housing to supporting base or load

57
254/372

With projections or apertures on drum for engagement with complementary structural formations on cable

99
254/381

With structure (e.g., sweep, tree, yoke) adapting drum to be powered by draft animal

0
254/323

With vehicle for supporting drum

218
254/328

Drive for drum includes motor of vehicle

21
254/324

Having arch-shaped body for straddling load

21
254/325

Having rotatable, cable guiding, pulley wheel element spaced from drum

59
254/326

Element repositionable relative to drum

53
254/327

Plural elements

37
254/384

Including hand held and operated lever with plural cable engaging means movably attached thereto for alternately contacting and pulling on cable

17
254/385

With rotatable, cable contacting, pulley wheel element attached to and reciprocated by driving component of device

34
254/386

Element reciprocated by expansible fluid motor

48
254/DIG.16

Automobile transmission jack

21
254/32

Axle-lubricating jack

1
254/DIG.11

Cable drum feed for presser

0
254/900

Cable pulling drum having wave motion responsive actuator for operating drive or rotation retarding means

46
254/33

Car journal box lifting

3
254/34

Suspended lifter

3
254/35

Car-pusher type

9
254/36

Pinch bar

0
254/38

Pivoted wheel engaging member

1
254/37

Rail clamping

1
254/389

Device or member for contacting and guiding moving cable

92
254/417

Having cable contacting portion revolving around another component of device

4
254/390

Including rotatable, cable contacting, pulley wheel element

76
254/393

Plural elements or element with plural cable contacting regions

69
254/394

At least two of the elements having noncollinear axes of rotation

82
254/400

Having axes perpendicular or skewed

17
254/398

Having one element repositionable relative to another element

24
254/399

Repositionable element supported by cable (e.g., traveling block)

61
254/395

Juxtaposed to cable at single locus

22
254/396

Having juxtaposed elements repositionable relative to one another

14
254/397

Including additional element spaced along cable path

14
254/401

With portable block for elements and hand manipulated means for removably fastening block to support base or load

16
254/402

Having portion of block repositionable for insertion or removal of cable or for exposure of elements

19
254/404

Including antifriction means for elements

7
254/403

With guard or guide for maintaining cable on elements

21
254/416

With antifriction means for element

29
254/405

With block for element and portion thereof repositionable for insertion or removal of cable or for exposure of element

35
254/406

Portion revolves about axis of rotation of element

16
254/408

With block for element having stationary portion adapted to coact with element to grip cable

10
254/392

With fluid, shock absorbing or tension restoring mechanism connected thereto

37
254/413

With means for affixing element to support base and allowing relative movement therebetween

24
254/414

Including elastic member

12
254/415

Including pivotal, rotational, or swivel connection

66
254/407

With means, or element structure, enabling object or obstruction on cable to bypass or travel over element

7
254/391

With mechanism for retarding or preventing cable movement or element rotation

94
254/409

With portable block for element and hand manipulated means for removably fastening block to support or load

25
254/410

Fastening means remotely operable or breakaway type

4
254/412

Including antifriction means for element

11
254/411

With guard or guide for maintaining cable on element

32
254/39

Door brace

2
254/902

Either drum, pulley wheel element, or cable constructed from specific material

18
254/DIG.2

Electric screw jacks

33
254/DIG.6

Flexible rack and pinion

7
254/11

Floor jack type

34
254/12

Rack and pinion or segment

6
254/13

Screw

16
254/17

Single throw lever

31
254/15

Single-throw lever and bar

17
254/16

Sliding bar

8
254/14

Step-by-step traveling member

3
254/93R

Fluid pressure

287
254/93A

Combined with screw

7
254/93HP

Inflatable portable bags

144
254/93H

Portable automobile jacks

131
254/93L

Service station lifts

32
254/93VA

Vehicle attached

21
254/2R

Hoisting truck

143
254/4R

Cable hoist

61
254/4C

Platform type

18
254/4B

Service station type

21
254/5R

Inclined plane or wedge

5
254/5C

Platform type

6
254/5B

Service station type

1
254/2C

Platform type

38
254/6R

Rack and pinion or segment

5
254/6C

Platform type

3
254/6B

Service station type

0
254/7R

Screw

37
254/7C

Platform type

7
254/7B

Service station type

33
254/2B

Service station type

125
254/8R

Single throw lever

95
254/10R

Parallelogram bars

56
254/10C

Platform type

42
254/10B

Service station type

37
254/8C

Platform type

20
254/8B

Service station type

201
254/9R

Toggle

15
254/9C

Platform type

45
254/9B

Service station type

10
254/3R

Tilting load support

24
254/3C

Platform type

13
254/3B

Service station type

11
254/88

Inclined plane lifter

149
254/DIG.1

Jack bases

65
254/DIG.3

Jack handles

39
254/387

Load engaging member and power transmitting cable for shifting member relative to structure which contacts and guides member

42
254/DIG.5

Means for depressing foot brake when adjusting same

15
254/388

Means supported by, and maintaining relative spacing between, longitudinal runs of an endless load moving cable

22
254/10.5

Metallic spring stretcher and/or compressor (e.g., leaf, helical, or coil springs)

86
254/134.3R

Method or apparatus for placement of conductive wire

366
254/134.4

By fluid pressure differential in conduit (e.g., parachute sucked through conduit)

184
254/134.3CL

Cable lashing

19
254/134.3FT

Conduit snakes

374
254/134.7

Sectional members for fishing

3
254/134.3SC

Submarine cable

28
254/134.5

Tractor for pulling wire (e.g., battery-powered)

22
254/134.6

Step-by-step type (e.g., by camming against messenger)

14
254/134.3PA

Utility pole guide

66
254/1

Miscellaneous

118
254/DIG.15

Motor clamps

0
254/89R

Multiple lifters (e.g., vehicle lifts)

111
254/89H

Fluid pressure

189
254/92

Screw

22
254/91

Swinging platform

5
254/90

Track-straddling platform

31
254/18

Nail extractor type

61
254/19

Hammer and anvil

9
254/20

Screw

2
254/21

Single throw lever

64
254/25

Claw bar

131
254/26R

Hammer

60
254/26E

Extensible fulcrum

22
254/27

Pivoted fulcrum member

14
254/22

Lever and pivoted jaw grip

19
254/23

Multiple jaw grip

7
254/24

Cam or wedge actuated

7
254/DIG.4

Object engaging heads for jacks

50
254/DIG.12

Pawls

4
254/29R

Pipe or rod jack

151
254/30

Lifter

125
254/31

Reciprocating clutch

6
254/29A

Tie rod tensioner

96
254/199

Portable implements or apparatus for tensioning flexible material or for extracting stumps or poles

45
254/262

Including adjustable gripping device for attaching implement or apparatus to rigid, in situ structure

18
254/243

Including either force transmitting, hand held and operated lever or animal powered sweep

46
254/246

Having linearly shifting, guided component attached thereto

8
254/247

With ratchet formation and locking pawl for maintaining relative positioning

12
254/244

Implement or apparatus includes bar component having plural holes and removable cooperating pins selectively engagable by lever

2
254/248

With additional, hand held lever pivotally attached thereto for applying pulling force in opposite direction

5
254/249

Having position locking means between levers

6
254/250

With camming means thereon, and pressure element spaced therefrom to confine material, or force transmitting cable, thereagainst

12
254/251

With material, article, or force transmitting cable clamping means attached to and shifting with lever

14
254/252

Including cooperating, relatively stationary means for intermittently locking material or cable

7
254/253

Plural clamping means

2
254/254

Alternately clamping and pulling on material or cable

15
254/255

Attached by flexible connector

3
254/256

With material, article, or force transmitting cable engaging means movably attached to and shifting with lever

15
254/257

Including cooperating, relatively stationary means for intermittently locking material or cable

5
254/258

Plural, movably attached engaging means

6
254/259

Alternately engaging and pulling on material or cable

4
254/260

Attached by flexible connector

2
254/245

With means attached thereto for sequentially gripping, shifting, and releasing bar component

9
254/261

With means pivotally connected to lever and adapted to engage rigid, in situ structure

4
254/228

Including expansible chamber fluid motor drive

42
254/263

Including ground engaging means for supporting implement or apparatus in plural, vertically spaced positions

8
254/241

Including intermeshing gear drive

5
254/237

Including ratchet bar and driving pawl drive

22
254/238

Having plural, disparate, driving pawls

10
254/239

Plural ratchet formations

11
254/240

Facing opposite directions

4
254/242

Including rotatable, pulley wheel element and cable

10
254/213

Including rotatably driven drum for engaging either material or force transmitting cable

38
254/219

Having intermeshing gears for driving drum

7
254/220

Worm and worm wheel

4
254/216

Having pressure element spaced therefrom to confine material or cable thereagainst

14
254/217

Having ratchet wheel and interengaging pawl for driving drum

37
254/218

Pawl pivots about fixed point on drive handle

66
254/214

Plural drums or drum with plural distinct sections

12
254/215

Juxtaposed to material or cable at single locus

3
254/224

With adjustable gripping device for attaching drum to rigid, in situ structure

5
254/227

With ground-engaging support means

15
254/225

With material or cable contacting infeed guide

9
254/226

Rotatable pulley wheel element

6
254/222

With means for preventing or retarding rotation in at least one direction

13
254/223

Ratchet wheel or formation and pawl

69
254/221

With projections or apertures on drum for engagement with complementary formations on material or cable

14
254/231

Including screw drive

35
254/236

Having intermeshing gears for driving screw

6
254/234

Having plural, oppositely shifting, threaded riders

16
254/235

Having ratchet wheel and pawl for driving screw

4
254/232

Plural screws

8
254/233

Having plural, oppositely shifting, threaded riders

10
254/229

Including worm and worm wheel gear drive

2
254/230

Includng rack and pinion, or pinion segment, drive

4
254/200

Material comprises resilient floor covering (e.g., carpet)

47
254/203

Including driven, rotatable, floor covering engaging and pulling drum

11
254/201

Including fluid or spring driven cylinder

18
254/202

Including force transmitting cable and driven, rotatable, cable engaging drum

14
254/209

Including force transmitting, hand held and operated, lever

35
254/212

Having linearly shifting, guided component attached thereto

25
254/211

With floor covering clamping means attached to lever

8
254/210

With means attached thereto for sequentially, gripping, shifting, and releasing bar component

7
254/205

Including rack and pinion, or pinion segment, drive

2
254/206

Including ratchet bar and driving pawl drive

2
254/207

Having plural, disparate, driving pawls

1
254/208

Including rotatable, pulley wheel element and cable

4
254/204

Including screw drive

2
254/40

Printer's quoins

7
254/41

Screw

0
254/42

Wedge

2
254/DIG.7

Printers form trucks

0
254/95

Rack and pinion

74
254/97

Geared

33
254/96

Screw pinion

5
254/43

Rail or tie shafter

17
254/44

Single throw lever

3
254/50.1

Resilient tire-casing spreaders

8
254/50.3

Fluid pressure operated

8
254/50.2

Spreader and tire casing relatively movable or rotatably mounted

9
254/50.4

With tire casing support

5
254/94

Rocking supports

43
254/DIG.14

Rope attachment

17
254/DIG.8

Screw jacks, plural section nut

1
254/98

Screw

106
254/99

Derrick type

0
254/103

Geared

76
254/100

Special engaging feature

118
254/101

Rocking head or base

20
254/102

Telescoping screws

38
254/113

Single throw lever and bar

18
254/119

Adjustable

13
254/114

Sliding bar

11
254/116

Adjustable

6
254/117

Lateral shoe

1
254/118

Rack bar

1
254/115

Rack bar and segment

3
254/120

Single throw lever

50
254/129

Adjustable

47
254/130

Multiple fulcrums

29
254/122

Lazy tongs

221
254/123

Lever-supported thrust bar

11
254/124

Mechanically actuated

179
254/127

Cable

13
254/128

Block and tackle

4
254/126

Screw

183
254/121

Rail or tie lifter

6
254/131

Special engaging feature

370
254/131.5

Fulcrumed fork or shovel

61
254/132

Root puller type

80
254/133R

Special engaging elements

214
254/134

Adjustable

235
254/133A

Sharing props (nonhydraulic)

21
254/28

Staple puller

124
254/105

Step-by-step traveling bar

51
254/106

Clutch actuated

60
254/107

Multiple driving clutches

10
254/108

Pawl actuated

62
254/109

Multiple driving pawls

4
254/110

Reversing

4
254/111

Reversing

12
254/112

Rack and lever

16
254/28.5

Thill-coupling jack

0
254/DIG.10

Tire or rim expanding or contracting devices

3
254/84

Traversing jack

16
254/85

Screw

13
254/418

Vehicle attached jack

74
254/420

Attached to trailer tongue

78
254/426

Cable actuated

5
254/423

Hydraulic or pneumatic

107
254/427

Rack and pinion

5
254/422

Rocking lever

8
254/424

Screw actuated

65
254/425

Gear driven

62
254/419

Semi-trailer landing gear

81
254/421

Turntable

5
254/DIG.13

Vehicle retarding drums

0
254/45

Vehicle-body lifters

73
254/47

Cable hoist

18
254/48

Vehicle attached drum

3
254/46

Lever and drum

5
254/49

Swinging side bars

6
254/50

Single fixed pivot

0
254/DIG.9

Vehicle-operated lift platform

4
254/104

Wedge

166
254/903

Yieldable, constant engagement, friction coupling (e.g., slip clutch) in drive for cable pulling drum

29
 
 
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