Abstract: A relatively small convex mirror is retractably mounted to a housing, located at the roof-line of a vehicle at the center windshield area for movement between a use position extended from the housing to permit a front seat occupant to view the face of a rear seat occupant and a stored position retracted within the housing.

Abstract: A catalytic combustion engine, each cylinder of which has a pre-combustion chamber communicating through an inclined transfer cylinder to produce swirl around the chamber, and has a pair of spaced parallel or nearly-parallel catalytic screen elements, e.g. gauzes, mounted to both the mouth of the transfer passage and the fuel injector nozzle, so as to be clear of the circumferential swirl path of the gas circulating in the chamber. The minimum spacing between the two catalytic screens should exceed the width of the mouth of the transfer passage. The injector injects a fuel spray between the two catalytic screens which preferably just brushes each screen and impinges on a heater plug. The compression ratio may be much lower than that for a conventional Diesel engine, for example down to 12:1.

Abstract: The invention provides a means for mounting accessories on space divider walls assembled from modular panels each of which has slotted support elements. The invention includes a beam which is anchored to the panel by engagement with the support elements. The beam has a plurality of pockets and the accessory units are equipped with hooks which detachably seat in the pockets.