|  | G |
SECTION G — PHYSICS

|  | G |
Note(s) 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). 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 Fulltext... Hierarchy... Expanded...G01 and "control" and "regulation" in class Fulltext... Hierarchy... Expanded...G05. 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 (Fulltext... Hierarchy... Expanded...G09), for enabling the result of a measurement to be known (Fulltext... Hierarchy... Expanded...G01), for signalling the information to a distant point or for giving information which has been signalled from a distant point (Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...G01L) or about some other condition linked to the pressure (another subclass of class Fulltext... Hierarchy... Expanded...G01, e.g., Fulltext... Hierarchy... Expanded...G01K for temperature), to make a record of the pressure or of its occurrence (Fulltext... Hierarchy... Expanded...G07C), to give an alarm (Fulltext... Hierarchy... Expanded...G08B), or to control another apparatus (Fulltext... Hierarchy... Expanded...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

|  | G07 |
CHECKING-DEVICES

|  | G07C |
TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS, OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE (identification of persons, e.g. finger-printing, foot-printing, Fulltext... Hierarchy... Expanded...A61B 5/117; indicating or recording apparatus for measuring in general, analogous apparatus but in which the input is not a variable to be measured, e.g. a hand operation, Fulltext... Hierarchy... Expanded...G01D; clocks, clock mechanisms Fulltext... Hierarchy... Expanded...G04B, Fulltext... Hierarchy... Expanded...G04C; time-interval measuring Fulltext... Hierarchy... Expanded...G04F; counting mechanisms per se Fulltext... Hierarchy... Expanded...G06M)

|  | G07C |
Subclass index
REGISTERING TIME OF EVENTS OR ELAPSED TIME | 1/00
REGISTERING THE WORKING OF MACHINES; OF VEHICLES; DETAILS THEREOF | 3/00; 5/00; 7/00
INDIVIDUAL ENTRY OR EXIT REGISTERS | 9/00
CHECKING APPARATUS NOT PROVIDED FOR ELSEWHERE | 11/00
VOTING APPARATUS; GENERATING RANDOM NUMBERS, LOTTERY APPARATUS | 13/00; 15/00

|  | G07C 1/00 |
Registering, indicating, or recording the time of events or elapsed time, e.g. time-recorders for work people (registering or indicating the working of machines or vehicles Fulltext... Hierarchy... Expanded...G07C 3/00, Fulltext... Hierarchy... Expanded...G07C 5/00)

|  | G07C 1/02 - G07C 1/18 |
Note(s) Groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...G07C 1/20-G07C 1/32 take precedence over groups Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...G07C 1/02-G07C 1/18.

|  | G07C 1/02 |
· | not involving the registering, indicating, or recording of other data

|  | G07C 1/04 |
· · | wherein the time is indicated in figures

|  | G07C 1/06 |
· · · | with apparatus adapted for use with individual cards

|  | G07C 1/08 |
· · | wherein the time is indicated by marking an element, e.g. a card or tape, in a position determined by the time

|  | G07C 1/10 |
· | together with the recording, indicating, or registering of other data, e.g. of signs of identity (together with the recording of a continuously-varying variable Fulltext... Hierarchy... Expanded...G01D or the appropriate other subclass of class Fulltext... Hierarchy... Expanded...G01, dependent on the variable)

|  | G07C 1/12 |
· · | wherein the time is indicated in figures

|  | G07C 1/14 |
· · · | with apparatus adapted for use with individual cards

|  | G07C 1/16 |
· · | wherein the time is indicated by marking an element, e.g. a card or tape, in a position determined by the time

|  | G07C 1/18 |
· · · | with apparatus adapted for use with individual cards

|  | G07C 1/20 |
· | Checking timed patrols, e.g. of watchman

|  | G07C 1/22 |
· | in connection with sports or games

|  | G07C 1/24 |
· · | Race time-recorders (race-finish cameras Fulltext... Hierarchy... Expanded...G03B 41/00)

|  | G07C 1/26 |
· · | Pigeon-timing or like equipment

|  | G07C 1/28 |
· · | Indicating playing time

|  | G07C 1/30 |
· | Parking meters (registering or indicating waiting time of vehicles by means driven by the vehicle Fulltext... Hierarchy... Expanded...G07C 5/02; coin-freed parking meters Fulltext... Hierarchy... Expanded...G07F 17/24)

|  | G07C 1/32 |
· | Time-recording locks (locks giving indication of unauthorised unlocking Fulltext... Hierarchy... Expanded...E05B 39/00)

|  | G07C 3/00 |
Registering or indicating the condition or the working of machines or other apparatus, other than vehicles (engine indicators Fulltext... Hierarchy... Expanded...G01L; testing apparatus incident to its manufacture Fulltext... Hierarchy... Expanded...G01M; signalling arrangements per se, indicating undesired or abnormal working conditions Fulltext... Hierarchy... Expanded...G08B)

|  | G07C 3/02 |
· | Registering or indicating working or idle time only

|  | G07C 3/04 |
· · | using counting means or digital clocks

|  | G07C 3/06 |
· · | in graphical form

|  | G07C 3/08 |
· | Registering or indicating the production of the machine either with or without registering working or idle time

|  | G07C 3/10 |
· · | using counting means

|  | G07C 3/12 |
· · | in graphical form

|  | G07C 3/14 |
· | Quality control systems

|  | G07C 5/00 |
Registering or indicating the working of vehicles (for measuring distance travelled or combinations of speed and distance Fulltext... Hierarchy... Expanded...G01C; engine indicators Fulltext... Hierarchy... Expanded...G01L; devices for measuring speed or acceleration Fulltext... Hierarchy... Expanded...G01P)

|  | G07C 5/02 |
· | Registering or indicating driving, working, idle, or waiting time only (apparatus forming part of taximeters Fulltext... Hierarchy... Expanded...G07B)

|  | G07C 5/04 |
· · | using counting means or digital clocks

|  | G07C 5/06 |
· · | in graphical form

|  | G07C 5/08 |
· | Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle, or waiting time

|  | G07C 5/10 |
· · | using counting means or digital clocks

|  | G07C 5/12 |
· · | in graphical form

|  | G07C 7/00 |
Details or accessories common to the registering or indicating apparatus of groups Fulltext... Hierarchy... Expanded...G07C 3/00 and Fulltext... Hierarchy... Expanded...G07C 5/00

|  | G07C 9/00 |
Individual entry or exit registers

|  | G07C 9/02 |
· | Turnstiles with registering means (coin-freed aspects Fulltext... Hierarchy... Expanded...G07F)

|  | G07C 11/00 |
Arrangements, systems, or apparatus for checking, e.g. the occurrence of a condition, not provided for elsewhere (for checking lottos or bingo games Fulltext... Hierarchy... Expanded...A63F 3/06; signalling or alarm arrangements Fulltext... Hierarchy... Expanded...G08B)

|  | G07C 13/00 |
Voting apparatus

|  | G07C 13/02 |
· | Ballot boxes

|  | G07C 15/00 |
Generating random numbers; Lottery apparatus (digital computer arrangements for generating random or pseudo-random numbers Fulltext... Hierarchy... Expanded...G06F 7/58; generating electric pulses at random intervals Fulltext... Hierarchy... Expanded...H03K 3/84) [3]