Abstract: Apparatus for orienting a lens of a camera in at least one predetermined direction relative to a reference point. The apparatus may comprise an openable housing for supporting a disposable camera therein. The housing is equipped with a beam projecting device that projects a beam onto a corresponding reference point which enables the housing and camera to be precisely indexed around the reference point for taking related photographs therearound. The apparatus may comprise a beam projecting device that is supported in a socket integrally mounted in a camera housing or the beam projecting device may be attached to a mounting plate that can be attached to the camera housing. Other sighting devices may be employed with the camera for use with correspondingly shaped reference points to facilitate indexing of the camera therearound.

Abstract: Suspension apparatus for a mobile vehicle having a frame and a plurality of wheel units adapted to travel on rails. In a preferred form, the apparatus includes a housing member that is rigidly attached to the frame and corresponds to a wheel unit. The housing member has an enclosed end and a downwardly-extending open end. The apparatus further includes a wheel unit support assembly, a portion of which is telescopingly received within the housing member. The wheel unit support assembly is adapted for attachment to a wheel unit and is biased out of the housing member by a spring. A travel-limiting pin arrangement is provided to limit the axial travel of the wheel unit support assembly relative to the housing member to a predetermined range of axial travel.