Abstract: A vehicle having a cargo area viewed from within the passenger compartment through an interposed window has a combination dome and cargo lamp assembly secured to the overhead of the passenger compartment at a point adjacent the window. A lamp enclosure is movably supported in an overhead dome position for illuminating the passenger compartment and is also adjustably positioned in a cargo illumination position wherein the lamp lens faces the window for directing illumination therethrough into the cargo area. Switch means are responsive to movement of the lamp enclosure from a dome position to a cargo illumination position for automatically energizing lamp means therein whenever the lamp assembly is in its cargo illumination position.

Abstract: An automotive air conditioning system including series connected condenser, expansion valve and evaporator components having refrigerant supplied thereto by a mechanical refrigerant compressor; the refrigerant compressor includes a drive shaft connected to the output of a variable speed traction drive transmission having an input shaft connected to a belt pulley for drive from the vehicle engine. The transmission includes a compact carriage that supports friction cones at opposite ends thereof and includes an axially adjustable speed transfer spool for bridging first and second pluralities of friction cones on either end of the carriage to vary the power transfer from the input shaft to an output shaft so as to manually adjust the circulation of refrigerant flow through the system in accordance with ambient temperature conditions.

Abstract: An incandescent lamp has an envelope defining a sealed fill gas cavity in which is located an electrically energizable tungsten filament that, when energized, has a sheath formed therearound of nonreactive gas and vaporized tungsten to suppress filament evaporation; the gas fill further includes a small quantity of helium in the range of 1% - 6% of the total gas charge effective to increase the density of the sheath and to increase temperature gradient within the sheath thereby to produce a drive force that improves the redeposition of tungsten vapor from the sheath back to the filament thereby to increase bulb life.

Abstract: A slab type ice maker including an inclined refrigerated plate assembly is associated with a mechanically driven refrigerant compressor to cool the plate below freezing during an ice making cycle of operation whereby water circulated thereover by means of a motor driven pump will produce an ice slab thickness on the plate which is removed therefrom during a hot gas defrost harvest cycle of operation to be directed onto a heated grid for separation into individual cubes which are collected in a storage bin having a bin level thermostat therein that operates when the bin is filled to terminate machine operation.

Abstract: A stationary annular rotor blade tip seal assembly includes an annular support extending continuously circumferentially around and radially outwardly of the tips of a plurality of blades on a turbine rotor. A seal mount ring includes a plural number of seal mount segments retained axially of the annular support and having circumferential ends on each of the adjacent segments spaced apart to receive a retaining spring and seal strip. A low density seal insert is mounted on each of the seal mount segments and is spring biased into seated engagement with each of the seal mount segments by the retaining spring with the seal strip closing a gap between each of the low density seal inserts.

Abstract: A wave interference silencer includes a sealed envelope having an inlet and an outlet in communicaton with an exhaust flow volume therebetween which is divided into a plurality of compartments by spaced apart intermediate wall portions each having an exhaust opening therein to define a continuous exhaust flow path from the inlet to the outlet ends of said envelope and wherein each compartment further includes a flow diverting baffle to prevent linear flow of exhaust through said exhaust flow openings and to define a first and second curvilinear flow path around each baffle each having an acoustical flow path length to produce wave interference silencing of a predetermined noise frequency within each compartment without obstructing exhaust flow between the inlet and outlet of the envelope.

Abstract: A multi-shaft gas turbine has an inner shaft rotatably supported at opposite ends thereof with one end adapted to be connected to a load and the other end to a turbine wheel with a tubular section that receives a balance tube removably mounted within the shaft and accessible from the aft end of the engine by removal of an inner exhaust cone and a bearing pump cover. The balance tube includes front, rear and intermediate circumferentially arranged splined lands that bear balance weights angularly positioned on the tube prior to insertion thereof into the shaft, each of the weights having a peripheral surface thereon for locating the longitudinal axis of the balance tube colinearly of the longitudinal axis of the inner shaft.

Abstract: An ice maker control circuit for use with an ice maker of the type including an inclined refrigerated plate associated with means energized during an ice making cycle of operation to cause water to be continually circulated across the inclined plate as refrigerant is directed with respect thereto and wherein ice slabs built up on the plate are periodically released therefrom and directed to a cutting grid for separation into a plurality of cubes of ice; the control circuit including a bin ice accumulation switch responsive to a maximum build up of ice therein to terminate machine operation and an ice slab thickness control switch to selectively control circuit means for terminating the circulation of water over the plate and for initiating a hot gas defrost cycle of operation; the circuit further including a time delay thermal relay responsive to the bin ice accumulation switch sensing a maximum level of bin ice and operative to maintain an ice making cycle of operation until the ice slab reaches a desired th

Abstract: A reflex reflector for retrodirecting illumination from the lamps of an approaching motor vehicle includes an array of interfitting V-block shaped cube corners having three mutually perpendicular reflecting faces within a frontal rectangular boundary. Each cube corner includes a first face bounded by a short side of the rectangle and the diagonals therefrom, a second face bounded by a long side and the diagonals therefrom including the diagonal common with the first face, and a third face bounded by the opposite short side and the diagonals therefrom including the diagonal common with the second face. In the array, the faces mate with the corresponding faces of juxtaposed adjacent cube corners to form a rectangular reflex strip. The reflector, when positioned vertically, redirects the intercepted illumination upwardly to the driver of the approaching vehicle.

Abstract: A rotary pump includes a plurality of rotor driven radial vanes pivotally supported on a cantilevered pivot pin located centrally of a cylindrical pump housing by a first end fixed to a closure plate of the pump and a free end spaced with respect to the end plate of a cylindrical rotor. A pilot sleeve is press fit within a vane hub and the sleeve includes a bearing surface for rotatably supporting the pilot sleeve on the free end of the pivot pin and the sleeve further includes means for guiding the pilot sleeve within a grooved track in the end plate of the rotor so as to prevent deflection of the pivot pin and resultant wear of pump vane tips on the inner surface of a pump chamber.

Abstract: A turbine blade has a hole through the blade stalk and a controlled area in the stalk cross section on each side of the hole to assure that the blade will separate at the stalk upon over-speed of the turbine wheel. The hole is drilled and reamed and the hole surface is finally machined by chemical milling to eliminate stress risers while maintaining a controlled cross-sectional area to ensure that with selected wheel and blade materials, the blades will separate and reduce the speed of the turbine wheel.

Abstract: A wave interference silencer assembly is disclosed for attenuating low frequencies without extension of the length of an inner tube component of a helical path wave interference silencer having a pair of exhaust flow tubes of equal length. A twisted ribbon component is twisted along its length to define an acoustical path length in one of the tubes longer than the length of the tube to produce attenuation of lower frequencies while retaining substantially equally divided exhaust volume flow through the first and second tubes.

Abstract: A low cost wave interference silencer including an enclosure having an inlet and an outlet with a direct bypass communication therebetween with a first acoustical length and further including a plurality of flat fin components enclosed between wall segments of the enclosure to define a plurality of series-connected flow paths arranged in spaced parallelism and including segments in reverse flow relationship to define a second flow path between the inlet and the outlet having an acoustical length greater than that of first acoustical length to produce a phase shift of a sound frequency within the exhaust flow between the inlet and the outlet and a resultant wave interference attenuation thereof.

Abstract: A throttle body for a rotary engine includes an electronically controlled single fuel injector with discharge pintle that is located above and between two counterrotating throttle valves with the fuel supply, rotor lubricating oil and idle air being directed through an orifice located below the injector. An atmospheric passage is interposed between the injector and the fuel supply orifice to serve as a vacuum break, through which a conical spray pattern is directed into the orifice which has walls contoured to receive the conical spray pattern and direct it in an unrestricted fashion as a spray cone into the intake manifold of a vehicle during low intake manifold vacuum conditions. The air passage serves to direct idle air through the orifice when throttle valves are closed to produce sonic mixing of idle air and fuel during operation of the engines at a high intake manifold vacuum.

Abstract: A pressure vacuum relief assembly for a container includes a housing with a first port in communication with the container and a second port in communication with atmosphere; the housing encloses improved vacuum and pressure relief valve means including first and second diaphragm members each having central openings therein engageable with conical surfaces on vacuum relief and pressure relief seal members; said first and second diaphragms form a control chamber in communication with the first port which is selectively pressurized to cause selective snap movement of each of the diaphragms to control flow across the seal members between atmosphere and the container.