(under subclass 1.01) Subject matter wherein either (a) the apparatus for proving or calibrating or (b) the device being proven or calibrated detects or determines either (1) a time rate of change of position of a body (i.e., speed), (2) or a time rate of change of position of a body in a given direction (i.e., or velocity), or (3) a time rate of change of speed or velocity of a body (i.e., acceleration).
SEE OR SEARCH THIS CLASS, SUBCLASS:
121+, for other than purely electrically or purely optically measuring speed, velocity, or acceleration in testing a vehicle brake.
167+, for other than purely electrically or purely optically
measuring speed, velocity, or acceleration in testing a projectile.
178+, for other than a purely electrically or a purely optically measuring speed, velocity, or acceleration to test navigational instrument.
488+, for utilizing an inertial element for mechanical speed, velocity, or acceleration measuring and electrical speed, velocity, or acceleration measuring other than a purely electrical or purely optical measuring type utilizing an inertial element; in particular, subclasses 514.01+ for an acceleration measuring apparatus utilizing an inertial element.
507, for comparing the speed of one device with another by measuring speed by means being other than purely electrical or purely optical. 652+, for apparatus for sensing vibrations by an inertial element.
861+, for fluid flow rate measuring other than by a purely electrical or a purely optical measuring means.
SEE OR SEARCH CLASS
33, Geometrical Instruments,
231, and 232 for straight-line-light ray sighting instruments involving speed; subclasses 300+ for direction sensing and indicating instruments which may involve speed measuring of a non-purely electrical or non-purely optical measuring type, particularly subclasses 318+ wherein a gyroscope is utilized for controlling or stabilizing purposes; and subclasses 391+ for pendulums which may respond to and be calibrated in terms of acceleration.
250, Radiant Energy, appropriate subclasses for measuring invisible light to measure speed where no manual manipulation is involved.
324, Electricity: Measuring and Testing,
160+, for purely electrical speed measuring.
356, Optics: Measuring and Testing, appropriate subclasses for measuring visible light to determine speed.
