Abstract: The crankshaft bearing uses various guide surfaces on the casing and cap to center and guide the cap into place in the casing. The guide surfaces are formed by a single machining step and are subdivided into separate portions. The studs which secure the cap to the casing each have a centering collar which is received in a bore of the cap to aid the centering of the cap during assembly.

Abstract: An annular member is fitted about an extension of the cylindrical liner and is provided with a pair of concentric chambers. The inner chamber communicates with cooling ducts within the liner while the outer chamber communicates via a single conduit with cooling cavities in the cylinder head. One or more throttle openings are provided between the two chambers to throttle the flow of coolent between the chambers. The annular member is provided with suitable apertured partitions to permit bolts to pass through in order to secure the cylinder head to the cylinder block.

Abstract: Alignment apparatus is disclosed for use in a radar display system in which targets are displayed on a raster scanned cathode ray tube and a computer causes target identities to be displayed adjacent to each target. To align the display system the computer generates a first signal which is applied to the system in the same manner as are radar video signals, and generate a second signal which is applied to the system in the same manner as are target identity signals. The two signals cause two dot test patterns to be displayed on the tube and interactive display techniques including a positional entry device such as a light pen are used to cause the two test patterns to be superposed. In response to superposition of each dots of the test patterns, the computer generates and stores correction signals which are thereafter used to modify the target identity signals to assure that target identities are displayed in proper registration with the targets.