CONTROLLING; REGULATING (specially adapted to a particular field of use, see the relevant subclass for that field, e.g. Fulltext... Hierarchy... Expanded...B23Q)
G05
Note(s)
This class covers methods, systems, and apparatus for controlling, in general.
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".
Attention is drawn to the Notes following the title of section G, especially as regards the definition of the term "variable".
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".
In this subclass, details of specific control systems are classified in the group relevant to the system, if not otherwise provided for.
This subclass does not cover features of general applicability to regulating systems, e.g. anti-hunting arrangements, which are covered by subclass Fulltext... Hierarchy... Expanded...G05B.
In this subclass, the following term is used with the meaning indicated:
"systems" includes self-contained devices such as speed governors, pressure regulators.
Control systems designed specifically for particular apparatus, machines, or processes are classified in the subclasses for the apparatus, machines, or processes, provided that:
thereis specific provision there for the control aspect, and
the apparatus, machines, or processes are described in detail.
CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY ("Bowden" or like mechanisms Fulltext... Hierarchy... Expanded...F16C 1/10; gearings or mechanisms not peculiar to this purpose Fulltext... Hierarchy... Expanded...F16H; systems peculiar to the control of particular machines or apparatus classified in a single other class, see the relevant class for such machines or apparatus)
G05G
Note(s)
This subclass covers:
members of general applicability for mechanical control;
mechanical systems for moving members to one or more definite settings.