G
SECTION G — PHYSICS
 G

Note(s)

  1. In this section, the following term is used with the meaning indicated:
    • "variable" (as a noun) means a feature or property (e.g., a dimension, a physical condition such as temperature, a quality such as density or colour) which, in respect of a particular entity (e.g., an object, a quantity of a substance, a beam of light) and at a particular instant, is capable of being measured; the variable may change, so that its numerical expression may assume different values at different times, in different conditions or in individual cases, but may be constant in respect of a particular entity in certain conditions or for practical purposes (e.g., the length of a bar may be regarded as constant for many purposes).
  2. Attention is drawn to the definitions of terms or expressions used, appearing in the notes of several of the classes in this section, in particular those of "measuring" in class G01 and "control" and "regulation" in class G05.
  3. Classification in this section may present more difficulty than in other sections, because the distinction between different fields of use rests to a considerable extent on differences in the intention of the user rather than on any constructional differences or differences in the manner of use, and because the subjects dealt with are often in effect systems or combinations, which have features or parts in common, rather than "things", which are readily distinguishable as a whole. For example, information (e.g., a set of figures) may be displayed for the purpose of education or advertising (G09), for enabling the result of a measurement to be known (G01), for signalling the information to a distant point or for giving information which has been signalled from a distant point (G08). The words used to describe the purpose depend on features that may be irrelevant to the form of the apparatus concerned, for example, such features as the desired effect on the person who sees the display, or whether the display is controlled from a remote point. Again, a device which responds to some change in a condition, e.g., in the pressure of a fluid, may be used, without modification of the device itself, to give information about the pressure (G01L) or about some other condition linked to the pressure (another subclass of class G01, e.g., G01K for temperature), to make a record of the pressure or of its occurrence (G07C), to give an alarm (G08B), or to control another apparatus (G05).

    The classification scheme is intended to enable things of a similar nature (as indicated above) to be classified together. It is therefore particularly necessary for the real nature of any technical subject to be decided before it can be properly classified.

  
INSTRUMENTS
 G05
CONTROLLING; REGULATING
 G05

Note(s)

  1. This class covers methods, systems, and apparatus for controlling, in general.
  2. In this class, the following terms or expressions are used with the meanings indicated:
    • "controlling" means influencing a variable in any way, e.g. changing its direction or its value (including changing it to or from zero), maintaining it constant, limiting its range of variation;
    • "regulation" means maintaining a variable automatically at a desired value or within a desired range of values. The desired value or range may be fixed, or manually varied, or may vary with time according to a predetermined "programme" or according to variation of another variable. Regulation is a form of control;
    • "automatic control" is often used in the art as a synonym for "regulation".
  3. Attention is drawn to the Notes following the title of section G, especially as regards the definition of the term "variable".
 G05B
CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS (fluid-pressure actuators or systems acting by means of fluids in general F15B; valves per se F16K; characterised by mechanical features only G05G; sensitive elements, see the appropriate subclasses, e.g. G12B, subclasses of G01, H01; correcting units, see the appropriate subclasses, e.g. H02K)
 G05B

Note(s)

  1. This subclass covers features of control systems or elements for regulating specific variables, which are clearly more generally applicable.
  2. This subclass does not cover[7]
    1. systems for controlling or regulating non-electric variables in general, which are covered by subclass G05D[7]
    2. systems for regulating electric or magnetic variables in general, which are covered by subclass G05F[7]
    3. systems specially adapted for the control of particular machines or apparatus provided for in a single other subclass, which are classified in the relevant subclass for such machines or apparatus, provided that there is specific provision for control or regulation relevant to the special adaptation (see Note (5), below). Otherwise, classification is made in the most appropriate place in this subclass. [7]
  3. In this subclass, the following terms or expressions are used with the meanings indicated:
    • "automatic controller" means a system, circuit, or device in which a signal from the detecting element is compared with a signal representing the desired value and which operates in such a way as to reduce the deviation. The automatic controller generally does not include the sensitive element, i.e. that element which measures the value of the condition to be corrected, or the correcting element, i.e. that element which adjusts the condition to be corrected;
    • "electric" includes "electromechanical", "electrohydraulic" or "electropneumatic".
  4. In this subclass, details of specific control systems are classified in the group relevant to the system, if not otherwise provided for.
  5. This Note lists places in the IPC where there is specific provision of the kind referred to in Note (2)(c), above; where such provision is at a general level, the places are listed under the heading "General references"; where the provision is related to programme control, the places are listed under the heading "Places related to group G05B 19/00". [7]

    General references [7]
    A01K 73/00Spreading or positioning of drawn nets for fishing  [7] 
    A61G 13/00, 
    A61G 15/00Adjustable operating tables, operating chairs, or dental chairs  [7] 
    B01D 3/42Distillation  [7] 
    B01D 24/00, 
    B01D 29/60, 
    B01D 37/00, 
    B01D 46/44Filtration  [7] 
    B01D 53/30Separation of gases or vapours by gas-analysis apparatus  [7] 
    B01D 61/00Separation using semi-permeable membranes  [7] 
    B01J 4/00Feed or outlet in chemical or physical processes  [7] 
    B01J 38/00Oxygen content in oxidation gas for regeneration or reactivation of catalysts  [7] 
    B01J 47/00Ion-exchange processes  [7] 
    B05B 12/00Delivery in spraying systems  [7] 
    B21B 37/00, 
    B21B 39/00Metal-rolling mills  [7] 
    B21K 31/00Positioning tool carriers for forging, pressing or hammering  [7] 
    B22D 11/16Continuous casting of metals  [7] 
    B22D 13/00Centrifugal casting of metals  [7] 
    B22D 17/32Pressure or injection die casting of metals  [7] 
    B22D 18/00Pressure or vacuum casting of metals  [7] 
    B22D 46/00Casting of metals in general  [7] 
    B23B 39/00Tool or work positioning for boring or drilling  [7] 
    B23D 36/00Machines for shearing or similar cutting stock travelling otherwise than in the direction of the cut  [7] 
    B23Q 5/00Driving or feeding mechanisms of machine tools  [7] 
    B23Q 15/00Feed movement, cutting velocity or position of machine tools  [7] 
    B23Q 35/00Copying from a pattern or master model for machine tools  [7] 
    B24B 47/00Position of grinding tool or work  [7] 
    B25J 13/00Manipulators  [7] 
    B26D 5/02Position of cutters in cutting machines  [7] 
    B29C 39/00 to 
    B29C 51/00Shaping techniques for plastic substances  [7] 
    B30B 15/14, 
    B30B 15/16Presses  [7] 
    B41B 27/00Composing machines  [7] 
    B41F 33/00Printing machines or presses  [7] 
    B41J 11/42Feeding sheets or webs in typewriters  [7] 
    B41L 39/00Apparatus or devices for manifolding, duplicating or printing for commercial purposes  [7] 
    B41L 47/00Addressing machines  [7] 
    B60G 17/00 to 
    B60G 21/00Vehicle suspension  [7] 
    B60T 7/00 to 
    B60T 15/00Vehicle brakes  [7] 
    B65B 57/00Machines for packaging  [7] 
    B65G 43/00Conveyers  [7] 
    E02F 3/42Sequence of drive operations for dredging or soil-shifting  [7] 
    E21B 44/00Earth drilling operations  [7] 
    F01K 1/00Steam accumulators  [7] 
    F01K 3/00, 
    F01K 7/00, 
    F01K 13/00Steam engine plants  [7] 
    F02C 7/04Air intakes for gas-turbine or jet-propulsion plants  [7] 
    F02C 9/00Gas-turbine plants; Fuel supply in air-breathing jet-propulsion plants  [7] 
    F02DCombustion engines  [7] 
    F02K 1/00, 
    F02K 1/00Jet pipes or nozzles in jet-propulsion plants  [7] 
    F02K 7/00 to 
    F02K 9/00Jet-propulsion plants  [7] 
    F04B 1/00, 
    F04B 27/00, 
    F04B 49/00Positive-displacement machines  [7] 
    F04D 15/00, 
    F04D 27/00Non-positive-displacement pumps, pumping installations, or systems  [7] 
    F16D 43/00, 
    F16D 48/00Clutches  [7] 
    F16F 15/023Suppression of vibrations using fluid means  [7] 
    F16H 59/00 to 
    F16H 63/00Gearings  [7] 
    F22B 35/00Steam boilers  [7] 
    F23G 5/50Incineration of waste  [7] 
    F23NCombustion in combustion apparatus  [7] 
    F24B 1/00Combustion in open fires using solid fuel  [7] 
    F24J 2/40Solar heating  [7] 
    F26B 25/22Drying processes of solid materials or objects  [7] 
    F28B 11/00Steam or vapour condensers  [7] 
    F28D 15/06Heat-exchange apparatus with intermediate heat-transfer medium in closed tubes passing into or through conduit walls, in which the medium condenses and evaporates  [7] 
    F28F 27/00Heat-exchanges or heat-transfer apparatus in general  [7] 
    G06F 11/00Computers  [7] 
    G08GTraffic  [7] 
    G09GIndicating devices using static means to present variable information  [7] 
    G11B 15/00, 
    G11B 19/00Driving, starting or stopping of record carriers  [7] 
    G21C 7/00Nuclear reaction  [7] 
    G21D 3/00Nuclear power plant  [7] 
    H01J 37/30Electron-beam or ion-beam tubes used for localised treatment of objects  [7] 
    H02PElectric motors, generators, or dynamo-electric converters  [7] 

    Places related to group G05B 19/00 (programme-control systems) [7]
    A61J 7/00Programmed medicine dispensers  [7] 
    A61L 2/00Disinfection or sterilising  [7] 
    A61N 1/36Heart pace-makers  [7] 
    A63H 17/00Steering-mechanisms for toy vehicles  [7] 
    B04B 13/00Centrifuges  [7] 
    B21B 37/16Thickness of work produced by metal-rolling mills  [7] 
    B21D 7/00Bending metal rods, profiles, or tubes  [7] 
    B23B 39/00, 
    B23B 39/00Boring or drilling machines  [7] 
    B23H 7/00Electrical discharge or electrochemical machining  [7] 
    B23P 21/00Assembling of parts to compose units  [7] 
    B24B 51/00Series of individual steps in grinding a workpiece  [7] 
    B25J 9/00Manipulators  [7] 
    B30B 15/26Presses  [7] 
    B41F 33/00Sequence of operations in printing machines or presses  [7] 
    B41J 11/44Feeding sheets or webs in typewriters  [7] 
    B41L 39/00Sequence of operations in apparatus or devices for manifolding, duplicating or printing for commercial purposes  [7] 
    B41L 47/00Selecting text or image to be printed in addressing machines  [7] 
    B60L 15/20Traction-motor speed of electrically-propelled vehicles  [7] 
    B65H 31/24Piling articles  [7] 
    B66C 13/18, 
    B66C 23/00Crane drives  [7] 
    B67D 5/08Dispensing, delivering, or transferring liquids  [7] 
    D05B 19/00, 
    D05B 21/00Sewing machines  [7] 
    D05C 5/00Embroidering machines  [7] 
    D06F 33/00Operations in washing machines  [7] 
    F02D 27/00, 
    F02D 28/00Combustion engines  [7] 
    F02D 41/00Supply of combustible mixture or its constituents to combustion engines  [7] 
    F15B 21/00Fluid-pressure actuator systems  [7] 
    F23N 5/20, 
    F23N 5/22Combustion in combustion apparatus  [7] 
    G01G 19/00Weighing apparatus  [7] 
    G04C 23/00, 
    G04C 23/00Electromechanical clocks or watches  [7] 
    G06C 21/00Mechanically operating digital computers  [7] 
    G06F 9/00Control units for electric digital data processing  [7] 
    G06F 13/10Peripheral devices for electric digital data processing  [7] 
    G06F 15/00Electrically operating digital computers  [7] 
    G06G 7/00Electrically or magnetically operating analogue computers  [7] 
    G09B 7/00Electrically-operated teaching apparatus or devices  [7] 
    H01H 43/00Electric switches  [7] 
    H01J 37/30Electron-beam or ion-beam tubes used for localised treatment of objects  [7] 
    H03K 17/296Electronic switching or gating  [7] 
    H04Q 3/54, 
    H04Q 7/18Selecting arrangements in electric communication technique  [7] 

 G05B
Subclass index
CONTROL SYSTEMS
Adaptive 13/00
Controlled by computer 15/00
Involving the use of models or simulators 17/00
Controlled by programme 19/00
Involving sampling 21/00
Open-loop automatic control systems not otherwise provided for 24/00
SYSTEM DETAILS
Comparing elements 1/00
Anti-hunting arrangements 5/00
Internal feedback arrangements 6/00
Obtaining smooth engagement or disengagement of automatic control 7/00
Safety arrangements 9/00
Automatic controllers 11/00
TESTING, MONITORING 23/00
SUBJECT MATTER NOT PROVIDED FOR IN OTHER GROUPS OF THIS SUBCLASS 99/00

 G05D
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES (for continuous casting of metals B22D 11/16; valves per se F16K; sensing non-electric variables, see the relevant subclasses of G01; for regulating electric or magnetic variables G05F)
 G05D

Note(s)

  1. This subclass does not cover features of general applicability to regulating systems, e.g. anti-hunting arrangements, which are covered by subclass G05B.
  2. In this subclass, the following term is used with the meaning indicated:
    • "systems" includes self-contained devices such as speed governors, pressure regulators.
  3. Control systems specially adapted for particular apparatus, machines or processes are classified in the subclasses for the apparatus, machines or processes, provided that there is specific provision for control or regulation relevant to the special adaptation, either at a detailed level (e.g. A21B 1/00: "for regulating temperature in bakers' ovens") or at a general level (e.g. B23K 9/095: "for automatic control of welding parameters in arc welding"). Otherwise, classification is made in the most appropriate place in this subclass.

    The following are lists of places where there is specific provision of the kind referred to above. Where such provision is at a detailed level, the places have been grouped according to the main groups of this subclass. Where the provision is at a general level (e.g. of a kind appropriate to more than one of the main groups specified in the lists, or to main groups G05D 27/00 or G05D 29/00), the places are listed under the title "General References".

    Places related to G05D 1/00
    A01B 69/00Agricultural machines or implements 
    A63H 17/00Toy vehicles 
    B60V 1/00Air-cushion vehicles 
    B60W 30/10Road vehicle path control [8] 
    B62D 1/00Steering controls of motor vehicles or trailers, i.e. means for initiating a change of direction 
    B62D 6/00Arrangements for automatically controlling the steering depending on driving conditions 
    B62D 55/104Chassis of endless-tracked vehicles 
    B63H 25/00Marine steering; control of waterborne vessels 
    B64C 13/00-B64C 15/00Controlling aircraft 
    B64D 25/00Controlling attitude or direction of aircraft ejector seats 
    B64G 1/24Cosmonautic vehicles 
    F41G 7/00Self-propelled missiles 
    F42B 15/00Guided missiles 
    F42B 19/00Marine torpedoes 

    Places related to G05D 3/00
    A43D 119/00Footwear manufacture 
    B21K 31/00Tool carriers in forging or pressing 
    B23B 39/00Pattern-controlled boring or drilling tools 
    B23D 1/00B23D 3/00B23D 5/00Planing or slotting machines controlled by copying device 
    B23H 7/00Electrode to workpiece spacing in electric discharge and electrochemical machining 
    B23K 26/02Workpiece in laser welding or cutting 
    B23K 37/04Workpiece in welding 
    B23K 37/06Molten metal in welding 
    B23Q 5/00Spindles in machine tools 
    B23Q 15/00B23Q 16/00Tool or work position in machine tools 
    B23Q 35/00Tools controlled by pattern or master model 
    B24B 17/00Grinding controlled by patterns, drawings, magnetic tape or the like 
    B24B 47/00Starting position in grinding 
    B30B 15/16Actuating members in presses 
    B62D 55/104Chassis of tracked vehicles 
    B65H 23/18Web-advancing mechanisms 
    E02F 3/42Dippers or buckets in dredgers 
    F15B 9/00Fluid-pressure servomotors with follow-up action 
    F24J 2/38Tracking of solar heat collectors 
    G03F 9/00Photomechanical production of patterned or textured surfaces 
    G11B 5/588Rotating heads in information storage systems 
    G21C 7/08Movement of control elements in nuclear reactors 

    Places related to G05D 5/00
    A24B 7/00Tobacco cutting 
    B05C 11/02Thickness of coating of fluent material on surface 
    B21B 37/16Thickness, width, diameter or other transverse dimensions of the products of metal-rolling mills 
    C03B 18/00Dimension of glass ribbon 
    D21F 7/00Thickness of layer in paper making 

    Places related to G05D 7/00
    A45D 20/00Air in hair drying helmets 
    A61M 5/168Flow of media to the human body 
    B03C 3/34Gases or vapour in electrostatic separators 
    B05C 11/10Fluent material in coating devices 
    B67D 1/00Dispensing beverages on draught 
    B67D 5/08Transferring liquids 
    C10K 1/00Gas purifiers 
    E21B 21/00Flushing boreholes 
    E21B 43/12Obtaining liquids from wells 
    F01D 17/00Flow in non-positive-displacement machines or systems 
    F01M 1/16Lubrication arrangements 
    F01P 7/00Coolant flow in cooling devices 
    F02C 9/00Gas-turbine working fluid 
    F16L 55/02Throttle passages in pipes 
    F24F 11/00Air-flow or supply of heating or cooling fluids in air treatment arrangements 
    F26B 21/06Air or gas flow in dryers 
    G01G 11/00Continuous flow weighing apparatus 
    G21D 3/08Coolant in nuclear power plant 

    Places related to G05D 9/00
    B01D 21/30 Liquid level in sedimentation arrangements 
    B41L 27/00Ink level in printing, manifolding or duplicating arrangements 
    F22D 5/00Feed water for boilers 
    H01J 1/02, H01J 13/00Liquid pool electrodes in electric discharge tubes or lamps 

    Places related to G05D 11/00
    B01D 21/30 Density in sedimentation arrangements 
    B01F 15/04Mixers 
    B24C 7/00Abrasive blasts 
    B28C 7/00Mixtures of clays or cements 
    B65G 53/34Bulk material conveyers 
    F02K 3/00Flow ratio in jet-propulsion plants 

    Places related to G05D 13/00
    B21C 1/02Drum speed in metal drawing 
    B23Q 15/00Cutting velocity of tool or work 
    B30B 15/16Ram speed in presses 
    B60K 31/00Setting or limiting speed of vehicles 
    B60L 15/00Electrically-propelled vehicles 
    B60W 30/14Road vehicle cruise control [8] 
    B64D 31/00Cruising speed of aircraft 
    D01D 1/00Feed rate in manufacture of artificial filaments, threads, fibres, bristles or ribbons 
    D01G 15/00Carding machines 
    D02H 13/00Warping, beaming or leasing machines 
    D03D 51/00Cyclically varying speed of looms 
    G01N 30/00Speed of fluid carrier in chemical analysis 
    G11B 15/46Filamentary or web record carriers or heads for such carriers in information storage systems 
    G11B 19/28Non-filamentary, non-web record carriers, or heads for such carriers in information storage systems 

    Places related to G05D 15/00
    B25D 9/00 Portable percussive tools 
    B30B 15/16Ram pressure in presses 
    B65H 59/00Tension in filamentary material 
    B65H 77/00Tension in webs, tapes, filamentary material 
    B66D 1/28Rope, cable or chain tension 
    D03D 49/04Tension in looms 
    D05B 47/00Tension in sewing machines 
    D21F 3/02Pressure in paper-making machines 
    F26B 13/10Drying fabrics 
    F26B 21/06Pressure in dryers 
    G11B 15/43Record carrier tension in information storage arrangements 

    Places related to G05D 16/00
    B60C 23/00 Tyre pressure 
    B63C 11/02Air within diving suit 
    B64D 13/00Aircraft air-pressure 
    B65G 53/34Bulk material conveyers 
    D01D 1/00Manufacture of artificial filaments, threads, fibres, bristles or ribbons 
    E21B 21/00Flushing boreholes 
    F01M 1/16Lubrication arrangements 
    G01N 30/00Pressure of fluid carrier in chemical analysis 
    H01J 7/00Pressure in electric discharge tubes or lamps 
    H01K 1/00Pressure in electric incandescent lamps 

    Places related to G05D 19/00
    B25D 9/00Portable percussion tools 
    B65G 27/10Jigging conveyers 

    Places related to G05D 21/00
    B01D 21/30 Density in sedimentation arrangements 
    B01D 53/30Treating gases or vapours 
    G01N 30/00Composition of fluid carrier in chemical analysis 

    Places related to G05D 22/00
    A01G 25/16 Watering gardens, fields, sports grounds or the like 
    A01K 41/00Poultry incubators 
    A24B 9/00Tobacco products 
    F24F 11/00Air conditioning 
    F26B 21/06Dryers 

    Places related to G05D 23/00
    A21B 1/00 Bakers' ovens 
    A45D 6/00Hair curlers 
    B21C 31/00Metal extruding 
    B60C 23/00Tyre temperature 
    B64G 1/46Cosmonautic vehicles 
    C03B 18/00Float baths in glass making 
    D01D 1/00Manufacture of artificial filaments, threads, fibres, bristles or ribbons 
    D04B 35/00Knitting machines 
    D06F 75/08Hand irons 
    D21F 5/00Paper-making machines 
    F01M 5/00Lubricant in lubrication arrangements 
    F16N 7/00Arrangements for supplying oil or unspecified lubricant from a reservoir 
    F22G 5/00Steam superheat 
    F26B 21/06Dryers 
    G01N 30/00Temperature of fluid carrier in chemical analysis 
    H01M 10/42Electric storage cells 
    H05B 6/06, H05B 6/00, H05B 6/68Dielectric, induction or microwave heating 
    H05G 1/00Anode of X-ray tube 

    Places related to G05D 25/00
    B41B 21/00 Photographic composing machines 
    H01S 3/10H05B 33/02H05B 35/00-H05B 43/00Lasers and other light sources 

    General references
    A01D 41/00 Combines [7] 
    A01J 5/007Milking machines 
    B23K 9/095Welding parameters 
    B23Q 35/00Copying 
    B24B 17/00, B24B 49/00Grinding or polishing 
    B24C 7/00Abrasive blasts 
    B67D 1/00Dispensing beverages on draught 
    F23C 10/00Combustion apparatus in which combustion takes place in a fluidised bed of fuel or other particles [7] 
    G03G 21/20Electrographic, electrophotographic or magnetographic processes 
    H02P 5/00-H02P 9/00Dynamo-electric motors or generators 

 G05D
Subclass index
CONTROL OF: SPEED OR ACCELERATION; FORCE; PRESSURE; POWER; MECHANICAL OSCILLATIONS 13/00; 15/00; 16/00; 17/00; 19/00
CONTROL OF: FLOW; LEVEL; RATIO 7/00; 9/00; 11/00
CONTROL OF: TEMPERATURE; HUMIDITY; VISCOSITY; CHEMICAL OR PHYSICO-CHEMICAL VARIABLES; LIGHT INTENSITY 23/00; 22/00; 24/00; 21/00; 25/00
CONTROL OF: POSITION, DIRECTION, DIMENSIONS 1/00 - 5/00
SIMULTANEOUS CONTROL OF TWO OR MORE VARIABLES 27/00, 29/00
SUBJECT MATTER NOT PROVIDED FOR IN OTHER GROUPS OF THIS SUBCLASS 99/00

 G05F
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES (regulating the timing or recurrence frequency of pulses in radar or radio navigation systems G01S; regulation of current or voltage, specially adapted for use in electronic time-pieces G04G 19/00; closed-loop systems for regulating non-electric variables by electric means G05D; regulating power supply of digital computers G06F 1/26; for obtaining desired operating characteristics of electromagnets with armatures H01F 7/08; regulating electric power distribution networks H02J; regulating the charging of batteries H02J 7/00; regulating of the output of static converters, e.g. switching regulators, H02M; regulation of the output of electric generators H02N, H02P 9/00; controlling transformers, reactors or choke coils H02P 13/00; regulating frequency response, gain, maximum output, amplitude or bandwidth of amplifiers H03G; regulating tuning of resonant circuits H03J; controlling generators of electronic oscillations or pulses H03L; regulating characteristics of transmission lines H04B; controlling electric light sources H05B 37/02, H05B 39/00, H05B 41/36; electric control of X-ray apparatus H05G 1/00)  [4,5]
 G05F

Note(s)

  1. This subclass covers:
    • systems only;
    • use of hydraulic, pneumatic, mechanical, and electrical motors for varying electric characteristics of devices which restore the quantity regulated;
    • the combination of static converters and current or voltage regulators, if the essential characteristic resides in the combination.  [4]
  2. This subclass does not cover elements per se, which are covered by the relevant subclasses.

 G05G
CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY ("Bowden" or like mechanisms F16C 1/10; gearings or mechanisms not peculiar to this purpose F16H; speed changing or reversing mechanisms for gearings conveying rotary motion F16H 59/00-F16H 63/00)
 G05G

Note(s)

  1. This subclass covers:
    • members of general applicability for mechanical control;
    • mechanical systems for moving members to one or more definite settings.
  2. Systems peculiar to the control of particular machines or apparatus provided for in a single other class are classified in the relevant class for such machines or apparatus, for example:
    A61G 13/00Controls for adjusting operating tables [6] 
    A61G 15/00Controls for adjusting operating chairs [6] 
    A63F 13/02Accessories for games using an electronically generated display [7] 
    B25JManipulators, e.g. controls therefor [6] 
    B60K 26/00Arrangement or mounting of propulsion-unit control devices in vehicles [6] 
    B60T 7/00Vehicle brake-action initiating means [6] 
    B62D 33/06Adaptations of control devices for movable vehicle cabs [6] 
    B62K 21/00Cycle-steering devices [6] 
    B62K 23/00Rider-operated controls specially adapted for cycles [6] 
    B62L 3/00Brake-actuating mechanisms specially adapted for cycles [6] 
    B63H 25/00Marine steering initiating means [6] 
    B66B 1/00Controls for elevators [6] 
    B66C 13/18Control systems or devices for cranes [6] 
    B66C 13/00Arrangements of handles or pedals for crane operation [6] 
    E02F 9/20Control devices for dredging or soil shifting machines [6] 
    F16C 3/04Adjustable cranks or eccentrics [6] 
    F16D 43/00Automatic clutches [6] 
    F16K 31/00, F16K 33/00Controls for valves [6] 
    F16P 3/00Safety devices acting in conjunction with the control or operation of a machine [6] 
    F16P 7/00Stopping machines on occurrence of dangerous conditions therein [6] 
    G02B 21/32Micromanipulators structurally combined with microscopes [6] 
    G04B 1/00-G04B 18/00Driving mechanisms in clocks or watches [6] 
    G06CDigital computers in which all the computation is effected mechanically [6] 
    G06F 3/01Manual computer input arrangements [6] 
    G06K 11/00Converting a pattern of mechanical parameters into electric signals [6] 
    G21C 7/08Displacement of solid control elements in nuclear reactors [6] 
    H01HMechanisms for operating switch contacts [6] 
    H03J 1/00Mechanical control of resonant circuits. [6] 
 G05G
Subclass index
MANUALLY-ACTUATED CONTROL MECHANISMS, ONE OR MORE CONTROLLING MEMBERS ACTUATING ONE OR MORE CONTROLLED MEMBERS 7/00, 9/00, 11/00, 13/00
AUTOMATIC MOVEMENT-INITIATING DEVICES; TRIP MECHANISMS 15/00; 17/00
SERVO-MECHANISMS 19/00
PROGRAMME-CONTROL DEVICES 21/00
LOCKING MEANS, LIMITING MEANS; POSITIONING MEANS 5/00; 23/00
COMPONENT PARTS 1/00, 3/00, 25/00