G
SECTION G — PHYSICS
  
INSTRUMENTS
 G08
SIGNALLING (indicating or display devices per se G09F; transmission of pictures H04N; arrangements for selective calling from one station to another H04Q 9/00)
 G08B
SIGNALLING OR CALLING ARRANGEMENTS; ALARM ARRANGEMENTS (signalling arrangements on vehicles B60Q, B62D 41/00; railway signalling systems or devices B61L; on cycles B62J 3/00, B62J 5/00; signalling or alarm devices in mines E21F 17/18; lamps and shutters therefor F21; sensitive measuring elements, see the appropriate sub-classes of G01; digital signal transmission system G08C; traffic control systems G08G; visual indicating means G09; sound-producing devices G10, H04R; radio or near-field calling-systems H04B; arrangements for selective calling from one station to another H04Q 9/00)
 G08B

Note(s)

  1. The term "arrangements" may cover also devices peculiar thereto.
  2. The mere provision of an audible or visible signalling device on measuring or switching apparatus is not included.
  3. This sub-class includes also means for identifying or incapacitating burglars or the like.
  4. Alarm arrangements for indicating that a specific variable has exceeded, or fallen below, a predetermined value are classified in the relevant sub-classes of class G01 for the measurement of that variable.
  5. Alarms for specific processes or types of machines or apparatus are classified in the relevant sub-classes for the processes, machines, or apparatus.
 G08B 1/00
Arrangements for signalling characterised solely by the form of transmission of the signal
 G08B 1/02
·  using only mechanical transmission
 G08B 1/04
·  using hydraulic transmission; using pneumatic transmission
 G08B 1/06
·  ·  hydraulic only
 G08B 1/08
·  using electric transmission
 G08B 3/00
Audible signalling arrangements or devices; Audible personal calling arrangements or devices (audible indication of time signals G04B 21/00; G04C 21/00)
 G08B 3/02
·  using only mechanical transmission
 G08B 3/06
·  using hydraulic transmission; using pneumatic transmission
 G08B 3/10
·  using electric transmission; using electromagnetic transmission
 G08B 3/14
·  using explosives
 G08B 5/00
Visible signalling arrangements or devices, e.g. personal calling arrangements or devices, remote indication of seats occupied (display of time signals G04B 19/00, G04C 17/00, G04C 19/00; for display of alphanumeric information G09F; flags, banners G09F)
 G08B 5/02
·  using only mechanical transmission
 G08B 5/06
·  using hydraulic transmission; using pneumatic transmission
 G08B 5/14
·  ·  with indicator element moving about a pivot, e.g. hinged flap, rotating vane
 G08B 5/16
·  ·  ·  with reset means necessitating a separate operation to return the indicator element
 G08B 5/18
·  ·  with indicator element moving rectilinearly
 G08B 5/20
·  ·  ·  with reset means necessitating a separate operation to return the indicator element
 G08B 5/22
·  using electric transmission; using electromagnetic transmission
 G08B 5/24
·  ·  with indicator element moving about a pivot, e.g. hinged flap, rotating vane
 G08B 5/26
·  ·  ·  with reset means necessitating a separate operation to return the indicator element
 G08B 5/28
·  ·  ·  hinged flap or arm
 G08B 5/30
·  ·  ·  rotating or oscillating members, e.g. vanes
 G08B 5/32
·  ·  with indicator element moving rectilinearly
 G08B 5/34
·  ·  ·  with reset means necessitating a separate operation to return the indicator element
 G08B 5/36
·  ·  using visible light sources
 G08B 5/38
·  ·  ·  Flashing light
 G08B 5/40
·  using smoke, fire, or coloured gases (sky-writing G09F 21/16)
 G08B 7/00
Signalling arrangements providing both audible and visible indication (combinations of display arrangements with audible advertising G09F 27/00); Personal calling arrangements providing both audible and visible indication
 G08B 7/02
·  using mechanical transmission
 G08B 7/04
·  using hydraulic transmission; using pneumatic transmission
 G08B 7/06
·  using electric transmission
 G08B 7/08
·  using explosives
 G08B 9/00
Order telegraph apparatus (signalling devices in mines E21F 17/18)
 G08B 9/02
·  Details
 G08B 9/04
·  ·  Means for recording operation of the apparatus
 G08B 9/06
·  ·  Means for indicating disagreement between orders given and those carried out
 G08B 9/08
·  mechanical
 G08B 9/10
·  ·  using ratchet
 G08B 9/12
·  ·  using rotary shaft
 G08B 9/14
·  hydraulic; pneumatic
 G08B 9/16
·  ·  using ratchet
 G08B 9/18
·  ·  by varying displacement of the fluid
 G08B 9/20
·  ·  by varying pressure of the fluid
 G08B 11/00
Signalling systems in which digital information is transmitted from a central station, e.g. representing a stock exchange, to a plurality of substations (digital signalling systems in general G08C; telegraph systems H04L)
 G08B 13/00
Burglar, theft, or intruder alarms (vehicle theft alarms B60R 25/10; cycle theft alarms B62H 5/00)
 G08B 13/02
·  Mechanical actuation
 G08B 13/04
·  ·  by breaking of glass
 G08B 13/06
·  ·  by tampering with fastening (alarm locks E05B 45/00; alarm devices on safes E05G 3/00)
 G08B 13/08
·  ·  by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
 G08B 13/10
·  ·  by pressure on floors, floor coverings, stair treads, counters, or tills
 G08B 13/12
·  ·  by the breaking or disturbance of stretched cords or wires
 G08B 13/14
·  ·  by lifting or attempted removal of hand-portable articles
 G08B 13/16
·  Actuation by interference with mechanical vibrations in air or other fluid
 G08B 13/18
·  Actuation by interference with heat, light, or shorter radiations; Actuation by intruding sources of heat, light, shorter radiation
 G08B 13/20
·  Actuation by change of fluid pressure
 G08B 13/22
·  Electrical actuation
 G08B 13/24
·  ·  by interference with electromagnetic field distribution
 G08B 13/26
·  ·  by proximity of an intruder causing variation in capacitance or inductance of a circuit
 G08B 15/00
Identifying, scaring, or incapacitating burglars, thieves, or intruders, e.g. by explosives (burglar traps, etc. on safes E05G 3/00)
 G08B 15/02
·  with smoke, gas, or coloured or odorous powder or liquid
 G08B 17/00
Fire alarms; Alarms responsive to explosion (temperature-responsive elements G01K)
 G08B 17/02
·  Mechanical actuation of the alarm, e.g. by the breaking of a wire
 G08B 17/04
·  Hydraulic or pneumatic actuation of the alarm, e.g. by change of fluid pressure
 G08B 17/06
·  Electric actuation of the alarm, e.g. using a thermally-operated switch (thermally-operated electric switches per se H01H 37/00)
 G08B 17/08
·  actuation involving the use of explosive means
 G08B 17/10
·  actuation by presence of smoke or gases
 G08B 17/12
·  actuation by presence of radiation or particles, e.g. of infra-red radiation, of ions
 G08B 19/00
Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
 G08B 19/02
·  Alarm responsive to formation or anticipated formation of ice (indicating weather conditions G01W 1/00)
 G08B 21/00
Alarms responsive to a single specified undesired or abnormal operating condition and not elsewhere provided for
 G08B 23/00
Alarms responsive to unspecified undesired or abnormal conditions
 G08B 25/00
Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems (digital signalling systems in general G08C)
 G08B 25/02
·  via a telephonic connection and using recorded signals, e.g. speech
 G08B 26/00
Alarm systems in which substations are interrogated in succession by a central station
 G08B 27/00
Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations (digital signalling systems in general G08C)
 G08B 29/00
Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation