Abstract: A novel gimbal mechanism utilizes one or more support arms so rotatably coupled to support structure and to an article whose position is to be controlled as to permit such article to be reoriented along any axis within a cone defined by axes of rotation of the gimbal's support arms.

Abstract: Fan motors, and the like, are mounted to a unit having mounting holes of different spacing the mounting holes of the fan motor by the use of one or more brackets each constructed around a substantially planar member provided with at least a pair of slots, each of which slots are arranged for attachment to one of the motor and a motor support member of the associated unit. The slots may be of equal or dissimilar lengths and may extend longitudinally either codirectionally and/or perpendicularly with respect to one another, and some of the slots may be arcuate in plan in order to facilitate the mounting of motors having a generally cylindrical housing.