Abstract: A signal mirror assembly has a laminated sandwich construction and includes a transparent center sighting disk. The disk interconnects a relatively thick plastic front sheet with a thin rear plastic sheet to provide enhanced structural integrity and to eliminate potential interference due to condensation. A retrodirective wire screen provides enhanced viewfinding capabilities and is centered within an opening in the adhesive sheet that bonds the plastic sheets together. Reinforcing rods along the horizontal sides of the mirror are rigidly anchored along a center portion and resiliently connected at opposite ends to limit warping over time while allowing for correction of focus by bending, if necessary. Optionally, the mirror may include foam pads for buoyancy.

Abstract: An assembly for providing alignment growth measurements for coupled shafts includes laser alignment measurement equipment and a mounting assembly for attaching the laser alignment measurement equipment to bearing housings of cooperating coupled shafts. The mounting assembly includes a bracket for attaching directly to the bearing housing. A first mounting disk is attached directly to the bracket. A second mounting disk is attached to the first mounting disk and is universally pivotally adjustable about a center pivot ball between the mounting disks. Tilt-adjusting screws are placed at equally spaced quadrantal positions to effect the pivoting of the second mounting disk. A cylindrical insert is attached to the second mounting disk and receives a detachable end cap. The end cap is adapted to receive the laser measuring assembly. Accurate measurement data is provided by a plurality of pairs of cooperating tooling balls. An outside micrometer is used to measure the gap.

Abstract: A shaft alignment system is disclosed to facilitate obtaining alignment measurement data on coupled rotating shaft machinery. The system includes one or more alignment scales which are mounted for relative sliding movement across the shaft coupling. The alignment scales include cooperating true and Vernier scale components for highly precise measurements with readings to an accuracy of 0.001" or 0.01 mm. This allows both axial displacement and parallel and angular misalignment to be checked and corrected. The system can be used on many different couplings, such as disc-type and diaphragm-type, flexible couplings. The alignment scales are mounted on U-shaped bases with the distal end of the true scale being held captive in the lateral direction within the Vernier scale base so as to stabilize against wind induced fluttering and vibration.

Abstract: An alignment apparatus system for aligning coupled shafts, for example between a motor and a driven device, which comprises an alignment fixture, alone and in combination with one or more of an adjustable fixture post or a sag remover. Basically, the alignment fixture comprises an extendable radial arm and a laterally extending arm, which is axial to shaft being aligned, on which a dial indicator is mounted distal to the radial arm. The alignment fixture is mounted to one shaft and the dial indicator contacts the other shaft or a rigid coupling hub mounted thereon and the misalignment is determined and corrected in the usual manner. In some instances, the dial indicator cannot contact the second shaft and the fixture post which extends radially from the second shaft provides the contact point for the dial indicator. In some instances, the laterally extending arm of the fixture is so long that it sags excessively when the vertical alignment is made.