| Class 74 | MACHINE ELEMENT OR MECHANISM |
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![[List of Pre Grant Publications for class 74 subclass 1R]](../as.gif) | ![[List of Patents for class 74 subclass 1R]](../ps.gif) | 1R | MISCELLANEOUS |
| | 1.5 | ESCAPEMENTS |
| | 2 | AUTOMATIC OPERATION OR CONTROL (E.G., TRIPS) |
| | 3 |  Speed controlled |
| | 3.5 | Retarded |
| | 4 | Hit and miss |
| | 5R | GYROSCOPES |
| | 5.1 | With caging or parking means |
| | 5.2 | With gimbal lock preventing means |
| | 5.22 | Combined |
| | 5.34 | Multiple gyroscopes |
| | 5.4 | Gyroscope control |
| | 5.41 |  Erecting |
| | 5.42 |  By plural diverse forces |
| | 5.43 | By jet |
| | 5.44 | By weight |
| | 5.45 | By friction |
| | 5.46 | By magnetic field |
| | 5.47 | By motor torque |
| | 5.5 | Damping |
| | 5.6R | With pick off |
| | 5.7 | With rotor drive |
| | 5.8 | Vertical gyroscopes |
| | 5.9 | Horizontal gyroscopes |
| | 5F | Flexure hinges for gyros |
| | 5.95 | Flywheel structure |
| | 6 | ENGINE STARTERS |
| | 10R | SHAFT OPERATORS (RADIO TUNER TYPE) |
| | 10.1 | Preselected position |
| | 10.15 | Step by step |
| | 10.2 | Rotatable stop and projectable abutment |
| | 10.22 | Digital dial type |
| | 10.27 | Plural operator |
| | 10.41 | With detent or clicker |
| | 10.45 | Plural shafts |
| | 10.5 | Plural speed |
| | 10.6 | Cam and follower |
| | 10.7 | Tensioned flexible operator |
| | 10.8 | Gear drive |
| | 10.9 | Lever and linkage drive |
| | 10A | Remote control |
| | 813R | ROTARY MEMBER OR SHAFT INDEXING, E.G., TOOL OR WORK TURRET |
| | 814 | With safety device or drive disconnect |
| | 815 | With locating point adjusting |
| | 816 | Preselected indexed position |
| | 825 | Plural operators or input drives |
| | 826 | With means to axially shift shaft |
| | 827 | Single revolution input effects desired fractional output |
| | 813C | Control means |
| | 813L | Locking means |
| | 11 | POWER TAKE-OFF |
| | 12 | Speedometer |
| | 13 | Wheel take-off |
| | 15.2 | Plural take-off shafts |
| | 15.4 | With independent change speed gearing |
| | 15.6 | From shaft extension |
| | 15.63 | Prime mover shaft, e.g., crank shaft |
| | 15.66 | Change speed transmission shaft |
| | 15.69 | Vehicle propeller shaft |
| | 15.8 | Intermediate ends of power transmitting line |
| | 16 | POWER TABLES AND STANDS |
| | 17 | WASHER AND WRINGER |
| | 17.5 | FULL STROKE MECHANISM |
| | 17.8 | MOTION TRANSFER THROUGH IMPERFORATE FLEXIBLE SEAL |
| | 18 | FLEXIBLE SEALING DIAPHRAGM ATTACHED TO MOVING ROD AND TO CASING |
| | 828 | ALTERNATING-MOTION DRIVEN DEVICE WITH MEANS DURING OPERATION TO ADJUST STROKE |
| | 829 | Constant length stroke with means to displace end limits |
| | 831 | Stroke adjustable to zero and/or reversible in phasing |
| | 840 | ROTARY DRIVEN DEVICE ADJUSTABLE DURING OPERATION RELATIVE TO ITS SUPPORTING STRUCTURE |
| MECHANICAL MOVEMENTS |
| | 20 | Oscillating to reciprocating and alternating rotary |
| | 21 | Oscillating to reciprocating and intermittent rotary |
| | 22R | Rotary to reciprocating and rotary |
| | 23 | Rotary to reciprocating and alternating rotary |
| | 24 | Rotary to reciprocating and intermittent rotary |
| | 25 | Rotary to or from reciprocating or oscillating |
| | 26 | Head motions |
| | 27 | Reciprocating carriage motions |
| | 29 | Rack and pinion type |
| | 30 | Shifting rack |
| | 31 | Shiftable pinion |
| | 32 | Segmental pinion |
| | 33 | Alternately rotated pinion |
| | 34 | Clutchable gears |
| | 36 | Overcoming dead center |
| | 37 | Belt or chain carried member |
| | 38 | Crank, lever, toggle, and slide |
| | 39 | Crank, lazy-tong, and slide |
| | 40 | Crank, pitman, lever, and slide |
| | 42 | Crank, pitman, and lever |
| | 44 | Crank, pitman, and slide |
| | 45 | Crank, lever, and slide |
| | 47 | Crank and lever |
| | 49 | Crank and slide |
| | 51 | Crank and multiple pitmans |
| | 52 | Planetary gearing and slide |
| | 53 | Cam, lever, and slide |
| | 54 | Cam and lever |
| | 55 | Cam and slide |
| | 61 | Unbalanced weights |
| | 62 | Trammel-pitman |
| | 63 | Rotary to rotary |
| | 64 | Inertia or centrifugal transmitters |
| | 65 | Crank, pitman, lever, and crank |
| | 66 | Crank, lever, and crank |
| | 67 | Crank, pitman, and crank |
| | 68 | Cranks, link connected |
| | 69 | Cranks, slidable connections |
| | 70 | Rotary to alternating rotary |
| | 71 | Mangle connections |
| | 75 | Crank, pitman, and lever |
| | 76 | Reciprocating rack connections |
| | 79 | Oscillating rack connections |
| | 82 | Flexible connector type |
| | 83 | Associated inertia devices |
| | 84R | Rotary to intermittent unidirectional motion |
| | 86 | Rotary to gyratory |
| | 88 | Reciprocating or oscillating to intermittent unidirectional motion |
| | 89 | Reciprocating or oscillating to or from alternating rotary |
| | 89.23 | Including screw and nut |
| | 89.24 | Shaft shorter than nut |
| | 89.25 | Auxiliary drive (e.g., fluid piston, etc.) for load |
| | 89.26 | Alternate power path operable on failure of primary |
| | 89.27 | Single input split into two intermediate outputs that are subsequently superposed into a single output |
| | 89.28 | Single input, plural outputs |
| | 89.29 | Plural inputs, single output |
| | 89.32 | Carriage surrounding, guided by, and primarily supported by member other than screw (e.g., linear guide, etc.) |
| | 89.33 | Carriage surrounded, guided, and primarily supported by member other than screw (e.g., linear guide, etc.) |
| | 89.34 | Shaft moves through rotary drive means |
| | 89.35 | Plural screws in series (e.g., telescoping, etc.) |
| | 89.36 | Deflection related |
| | 89.37 | Limit stop |
| | 89.38 | Including means to selectively transmit power (e.g., clutch, etc.) |
| | 89.39 | Means to selectively lock or retard screw or nut |
| | 89.4 | Contamination related |
| | 89.42 | Backlash |
| | 89.43 | Pressurized fluid introduced between nut and screw |
| | 89.44 | Lubrication |
| | 89.45 | Manually driven |
| | 89.1 | Including inertia device |
| | 89.13 | Including bevel gears |
| | 89.14 | Including worm |
| | 89.16 | Including spur gear |
| | 89.2 | Including flexible drive connector (e.g., belt, chain, strand, etc.) |
| | 96 | Oscillating to oscillating |
| | 99R | Reciprocating to or from oscillating |
| | 100.1 | Snap action |
| | 101 | Compound lever and slide |
| | 102 | Lever and slide |
| | 103 | Straight line motions |
| | 104 | Slidable connections |
| | 105 | Link connections |
| | 106 | Toggle transmissions |
| | 107 | Cam connections |
| | 108 | Flexible connections |
| | 109 | Rack and pinion |
| | 99A | Inclined ramp |
| | 110 | Reciprocating to reciprocating |
| | 111 | MECHANICAL MOVEMENTS (INTERMITTENT GRIP TYPE) |
| | 112 | Rotary to intermittent unidirectional motion |
| | 113 | Automatically controlled |
| | 116 | Rotary crank or eccentric drive |
| | 125.5 | Intermittently engaged clutch |
| | 126 | Oscillation or reciprocation to intermittent unidirectional motion |
| | 127 | Screw and nut devices |
| | 128 | Slide actuator |
| | 130 | Rack actuator |
| Strap actuator |
| | 141.5 | Lever actuator |
| | 144 | Grip units and features |
| | 625 | ALTERNATE MANUAL OR POWER OPERATORS |
| | 640 | GEARING |
| | 650 | Nonplanetary gearing differential type (e.g., gearless differentials) |
| | 655 | Single gearing unit includes fluid drive |
| | 661 | Plural prime movers selectively coupled to common output |
| | 664 | Plural power paths from prime mover |
| | 665R | Plural power paths to and/or from gearing |
| | 670 | Alternate input connections single hand crank |
| | 718 | Fluid drive divides or combines alternate paths |
| | 720 | One path includes fluid drive |
| | 721 | Friction-type gearing |
| | 724 | Worm-type gearing |
| | 665A | Single driven plural drives |
| | 665F | Single drive plural driven |
| | 665L | Plural drivers plural driven |
| | 665Q | Alternate drivers and driven |
| | 665P | Miscellaneous (plural power paths) |
| | 730.1 | With fluid drive |
| | 731.1 | Condition responsive control |
| | 732.1 | With one or more controllers for gearing, fluid drive, or clutch |
| | 745 | In series plural interchangeably locked nonplanetary units |
| | 810.1 | Reversal of direction of power flow changes power transmission to alternate path |
| | 216.3 | Toothed gear and recirculated unconnected elements |
| | 318 | Alternating rotary or continuous |
| | 319 | Alternating rotary |
| | 325 | Interchangeably locked |
| | 329 | Disconnectable counter shaft |
| | 330 | Multiple concentric clutch shafts |
| | 331 | Plurality of counter shafts |
| | 332 | Internal-external gears |
| | 333 | Combined gear and clutch |
| | 335 | Control mechanism |
| Automatic |
| | 337.5 | Cam operated |
| | 339 | Meshing assisters |
| Longitudinally slidable |
| Multiple spur gears |
| | 347 | Multiple bevel gears |
| Single spur gear |
| | 350 | Single bevel gear |
| | 351 | Pin or crown gears |
| | 352 | Laterally slidable gears |
| | 355 | Single forward and reverse speeds |
| Slidable keys or clutches |
| | 356 | Alternative clutch shaft |
| Multiple clutch shafts |
| Single clutch shaft |
| | 380 | Pivotally supported |
| | 388R | Follow-up mechanism |
| | 390 | Eccentric driving shaft and axle |
| | 391 | Central driving shaft in axle |
| | 392 | Parallel shafts, adjustable gear mesh |
| | 393 | Varying speed ratio |
| | 395 | Adjustable |
| | 404 | Reversing means |
| | 405 | Disconnecting means |
| | 406 | Displaceable elements |
| | 409 | Backlash take-up |
| | 410 | Pressure distributing |
| | 411 | Yieldability in gear trains |
| | 411.5 | With brake means for gearing |
| | 412R | Directly cooperating gears |
| | 413 | Parallel axes or shafts |
| | 416 | Intersecting axes |
| | 422 | Rack and pinion |
| | 420 | Spur and bevel |
| | 421R | Spur |
| | 423 | Bevel |
| | 424.5 | Spiral |
| | 424.71 | Screw and nut |
| | 424.72 |  Plural longitudinally variably spaced nuts |
| | 424.73 | Threadless |
| | 424.74 | Non-linear screw |
| | 424.75 | Thread geometry |
| | 424.78 | Nut disengageable from screw |
| | 424.81 | Rolling element engaging thread |
| | 424.82 |  Recirculating rolling elements |
| | 424.83 |  Plural independent recirculating element paths |
| | 424.84 | Single thread common to plural paths |
| | 424.85 | Roller return path in shaft |
| | 424.86 | Return path geometry |
| | 424.88 | Interconnected or cooperating rollers or roller structure |
| | 424.89 | Non-recirculating rolling elements |
| | 424.94 | Less than 360 degrees of contact between nut and screw |
| | 424.6 | Driven rack or shaft |
| | 424.7 | Screw |
| | 425 | Worm |
| | 412TA | Torque actuated safety devices |
| | 431 | Gear and rotary bodies |
| | 434 | Rotary bodies |
| | 435 | Mutilated |
| | 436 | Geneva |
| | 437 | Irregular teeth and bodies |
| | 438 | External and internal teeth |
| | 439 | Sectional |
| | 457 | Teeth |
| | 467 | Lubrication |
| | 469 | CONTROL LEVER AND LINKAGE SYSTEMS |
| | 470 | Resilient connections |
| | 471R | Multiple controlled elements |
| | 473.1 | Transmission control |
| | 473.11 | Fluid actuator |
| | 473.12 | Electrical actuator |
| | 473.13 | Occupant propelled vehicle |
| | 473.15 | Transmission controlled by flexible cable |
| | 473.16 | Foot operated |
| | 473.18 | Control convertible between automatic and manual operation |
| | 473.19 | Control of plural mechanisms (e.g., control of transmission and control of 4 - wheel drive) |
| | 473.21 | Restriction of shift, gear selection, or gear engagement |
| | 473.22 | Prevention of reverse shift |
| | 473.23 | Separate actuator to disengage restrictor |
| | 473.24 | Shift element interlock |
| | 473.27 | Spherical restrictor |
| | 473.28 | Resiliently biased restrictor |
| | 473.29 | having vibration damper |
| | 473.3 | Manually operated selector (e.g., remotely controlled device, lever, push button, rotary dial, etc.) |
| | 473.36 | Particular element (e.g., shift fork, template, etc.) |
| | 478 | Foot operated |
| | 471XY | Control moves in two planes |
| | 479.01 | Multiple controlling elements for single controlled element |
| | 480R | Interconnected |
| | 483R | Interlocked |
| | 484R | Steering and controls assemblies |
| | 490 | Antirattling elements |
| | 490.01 | Robotic arm |
| | 490.02 | Including power cable or connector |
| | 490.03 | Including electric motor |
| | 490.04 | Including flaccid drive element |
| | 490.05 | Joint between elements |
| | 490.07 | Power elements as controlling elements |
| | 490.08 | Planar surface with orthogonal movement and rotation |
| | 490.09 | Planar surface with orthogonal movement only |
| | 490.1 | Pair of power elements |
| | 490.11 | Power and manual controlling elements |
| | 490.12 | Manual controlling elements |
| | 491 | Hand operated |
| | 492 | Steering posts |
| | 500.5 | Flexible transmitter (e.g., Bowden cable) |
| | 501.5R | Constant tension sustaining |
| | 501.6 | And hand operator |
| | 502 | Slidable |
| | 502.1 | For moving a mirror |
| | 502.2 | Single rotatable lever (e.g., for bicycle brake or derailleur) |
| | 502.3 | Including rolling antifriction elements |
| | 502.4 | And sheath support, connector, or anchor |
| | 502.5 | Specific cable or sheath structure |
| | 502.6 | Specific cable connector or guide |
| | 503 | Sliding rod |
| | 504 | Rotatable rod, shaft, or post |
| | 512 | Foot operated |
| | 515R | Knee operated |
| | 516 | Variable output force |
| Elements |
| | 519 | Levers |
| | 527 | Detents |
| | 528 | Hand crank |
| | 529 | Interrelated lever release |
| | 530 | Gear |
| | 531 | Friction |
| | 532 | Lever engaging |
| | 533 | Lever engaging rack |
| | 540 | Lever carried rack |
| | 543 | Handles |
| | 544 | Extension |
| | 545 | Hand crank |
| | 548 | Shaft connections |
| | 551.1 | Handle bars |
| | 551.2 | Spring biased or supported |
| | 551.3 | Folding or adjustable |
| | 551.8 | Attachments and accessories |
| | 551.9 | Handholds and grips |
| | 552 | Hand wheels |
| | 558.5 | Caps and covers |
| | 559 | Rocker arms |
| | 560 | Pedals |
| | 564 | Foot rests |
| | 565 | Controller checks |
| | 566 | Slot closers and lever guards |
| ELEMENTS |
| | 567 | Cams |
| | 572.4 | Balancing for drum, e.g., washing machine or arm-type structure, etc., centrifuge, etc. |
| | 570.1 | Eccentric |
| | 570.2 | Plural, movable relative to each other (including ball(s)) |
| | 571.1 | Adjustable |
| | 570.3 | Having anti-friction means, e.g., roller bearing, lubrication, etc. |
| | 572.1 | Power generating-type flywheel |
| | 572.2 | Flywheel, motion smoothing-type |
| | 573.1 | With fluid balancing means |
| | 574.1 | With electrical or magnetic damping |
| | 574.2 | Damping using swinging masses, e.g., pendulum type, etc. |
| | 574.3 | Damping by increasing frictional force |
| | 574.4 | Damping by absorbing vibration force (via rubber, elastomeric material, etc.) |
| | 572.21 | Structural detail, e.g., fiber, held by magnet, etc. |
| | 575 | Pawls and ratchets |
| | 579R | Pitmans and connecting rods |
| | 580 | Radial |
| | 581 | Yieldable |
| | 586 | Longitudinally adjustable |
| | 587 | Hollow rod, lubricated |
| | 588 | Sheet metal type |
| | 589 | Counterbalanced |
| | 593 | Section coupled |
| | 594 | Bearings, adjustable |
| | 579E | Engine type |
| | 579F | Idler arm |
| | 594.1 | Cranks and pedals |
| | 595 | Cranks and wrist pins |
| | 596 | Multiple throw |
| | 598 | Sectional |
| | 599 | Yieldable |
| | 600 | Adjustable |
| | 602 | Variable |
| | 603 | Counterbalanced |
| | 605 | Lubricated |
| | 606R | Gear casings |
| | 608 | Guards |
| | 612 | Guard mechanisms |
| CROSS-REFERENCE ART COLLECTIONS | ||
| | 900 | PARTICULAR SHIFT PATTERN |
| FOREIGN ART COLLECTIONS | ||
| FOR000 | CLASS-RELATED FOREIGN DOCUMENTS |
| Any foreign patents or non-patent literature from subclasses that have been reclassified have been transferred directly to FOR Collections listed below. These Collections contain ONLY foreign patents or non-patent literature. The parenthetical references in the Collection titles refer to the abolished subclasses from which these Collections were derived. | ||
| FOR100 | TRANSMISSION CONTROL (74/473 R) |
| FOR101 | Foot operated (74/474) |
| FOR102 | With detent mechanism (74/475) |
| FOR103 | With reverse lockout (74/476) |
| FOR104 | With interlocked elements (74/477) |
| FOR105 | Pivot mounting (74/473 P) |
| FOR106 | Near steering wheel (74/473 SW) |
| DIGESTS | ||
| | DIG1 | HYDRAULIC CONTROL SYSTEMS AUTOMATIC AUTOMOTIVE CONTROLS |
| | DIG2 | MISCELLANEOUS CONTROL SYSTEMS (E.G., SHIP PROPULSION, MACHINE TOOLS, ETC.) |
| | DIG3 | MOVABLE VAN OR BLADE TORQUE CONVERTERS |
| | DIG4 | MAGNETIC GEARING |
| | DIG5 | GAS TURBINE WITH GEARING |
| | DIG6 | TRANSISTOR-ELECTRONIC GEARING CONTROLS |
| | DIG7 | INDICATORS-SENSORS AND METERS |
| | DIG8 | MARINE CONTROL-SHIP TRANSMISSION CONTROL MEANS |
| | DIG9 | PERPETUAL MOTION GIMMICKS |
| | DIG10 | POLYMER DIGEST - PLASTIC GEARS |
| | DIG11 | CREEPER SPEED |
| | DIG12 | NOVIKOV GEARS |