(under subclass 511) Support wherein the staff receiving means is adjustably connected to the device, whereby the staff is movable in one or more planes with respect to the device. A means (friction brake, lever and detent, etc.) to secure the staff receiving means against movement relative to the device is required. Neither a movement of the staff within its receiving means, nor a repositioning of the device relative to its supporting surface or object, constitute the movement of the receiving means relative to the device that is fundamental to this subclass.
(1) Note. Where more than one centering or retaining means is present, it is not necessary that each means move relative to the device; rather, it is sufficient if one moves, as an entity, relative to the device (and therefore, relative to
any other means).
(2) Note. Rotation of the staff receiving means about its longitudinal axis (i.e., the longitudinal axis of the staff) relative to the device is deemed to be for the sake of adjustment (and therefore proper for this subclass ) if a means to secure against rotation is provided.Rotation for its own sake (i.e., in the absence of a securing means) is specifically provided for -- in the instance of a stand or base type device -- in subclasses 521+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
523+, (especially subclass 527) for a staff centering or retaining means which, by the manipulation of one or more elements of the means relative to other elements of the means, is capable of plumbing" a staff held therein; however, since the means is not moved as an entity, the structures of that subclasses (523+) are not angularly adjustable within the meaning of this subclass (514).
