Abstract: A mobile photographic portrait studio apparatus, in a preferred ebodiment thereof, comprises a truck-drawn detachable studio trailer having functional studio areas therein for production line-type movement of studio customers and photograpic work in process, the trailer having a movable outer wall so that the natural environment outside the studio can be used as the portrait background, the studio having (a) adjustable mirror means for reflecting selected natural backgrounds to the studio camea and (b) various other features adapting the same for mobile studio functions of which a fixed studio is not capable, the object being to provide convenient and inexpensive photographic services at special sites, such as fairs, athletic events, scenic tourist sites and the like.

Abstract: A supplementary mass is arranged in an electromagnet system between armature and reset spring in such a way that, after reaching an end position, the armature is relieved of the spring force; due to the relief, a high excess of magnetic force is available for braking the subsequent bounce movement; the mass and force conditions of the magnet system are matched so that the subsequent collision of armature and supplementary mass occurs counter-directionally and the remaining kinetic energy of the armature is used up to a large extent by the counter-directional collision; the small bounce movement permits the use of spring systems with very high reset forces when the armature is pulled-in whereby the movement times of the armature are greatly shortened; and specific springs and spring arrangements for producing suitable reset spring force characteristics are described.

Abstract: An improved fuel bowl assembly adapted to be detachably mounted upon a main carburetor body minimizes exposure of sealing gaskets to standing heads of fuel contained in the bowl and affords ready access to the interior of the bowl without risk of fuel spillage. A one piece housing is formed with a bathtub-like fuel bowl chamber whose open top is closed by a detachable cover. The front wall of the housing is provided with fuel and air bleed passages so arranged that fuel flowing from the bowl through these passages must rise above the normal level of fuel maintained in the bowl before exposure to the gasket which seals the front surface of the front wall of the housing to the side of the main carburetor body. A float valve mounted on the bottom side of the cover controls the flow of fuel from an inlet passage in the cover to maintain a desired level of fuel in the bowl, and the moving parts of an accelerating pump are also mounted on the cover.

Abstract: A fuel metering apparatus is shown as having a throttle body with an induction passage therethrough and a throttle valve for controlling flow through the induction passage, a fuel-air mixture discharge member is situated generally in the induction passage downstream of the throttle valve, an air passage communicates between a source of air and the fuel-air mixture discharge member, the air passage is shown as also including a flow restrictor therein which provides for sonic flow therethrough, and a fuel metering valving assembly having a ball valve member is effective for metering liquid fuel as at a superatmospheric pressure and delivering such metered liquid fuel as into the air passage upstream of the flow restrictor thereby causing the thusly metered liquid fuel and air to pass through the sonic flow restrictor before being discharged into the induction passage by the fuel-air mixture discharge member, the ball valve member has a flattened surface against which an armature of a solenoid assembly operative

Abstract: A fuel injection fuel supply system for a combustion engine has a single fuel injector valve effective for injecting all of the required fuel in equal amounts to each of the combustion cylinders of the engine through chamber means exposed to superatmospheric air; the injected fuel and the superatmospheric air combine to form a fuel-air emulsion which flows to the intake of each of the combustion cylinders.

Abstract: An air scoop is shown for use in combination with a vehicle having an engine air intake port located in a side panel of a body panel of the vehicle; the scoop has a forward inlet and a rearward discharge end; the scoop extends outwardly beyond the normal contour of the vehicular body so that the inlet functions as a scoop-like inlet while the discharge end serves to direct such air as flows into the air scoop into the engine air intake port.

Abstract: An automotive compartment cover assembly, for use in covering a compartment such as, for example, the windowed rear compartment of a hatchback or a station wagon type automotive vehicle, has in effect, a variable length elongated hollow cylindrical roller about which is rolled a flexible cover sheet member; at least one compression spring serves to provide a longitudinal resilient force in order to axially accommodate and provide for the variable length of the roller; at least one pre-stressed coiled retractor spring is provided for producing a rotational tension or force on the cover sheet member in a manner whereby such tension or force does not increase linearly as the cover sheet member is being extended from the roller.

Abstract: A fuel pressure regulator is shown as having two distinct and variable chambers sharing, as a common wall therebetween, a pressure responsive diaphragm which controls the position of a valve actuator depending upon the pressure differential existing across the diaphragm with such pressure differential being reflective of the pressure differential existing as from the magnitude of the pressure of the fuel in a first of the two chambers to the magnitude of the pressure within the second of the two chambers which is at ambient atmospheric pressure; a flapper type valve openable by the valve actuator serves to control the flow of fuel into the first of the two chambers from where the pressure regulated fuel flows as to associated fuel metering apparatus.

Abstract: A duty-cycle type electromagnetic injector assembly has a valve and cooperating valve seat with the valve being positioned away from or against the valve seat depending upon whether an associated electrical coil is energized; a housing generally contains the valve and valve seat, a locator or guide closely confines the valve permitting the valve to be freely moved toward and away from the valve seat while constraining movement of the valve in other directions; the locator or guide is in turn prevented from movement by a retainer operatively connected to the housing and frictionally engaging the locator or guide.

Abstract: A fuel metering apparatus is shown as having a throttle body with an induction passage therethrough and a throttle valve for controlling flow through the induction passage, a fuel-air mixture discharge member is situated generally in the induction passage downstream of the throttle valve, an air passage communicates between a source of air and the fuel-air mixture discharge member, the air passage is shown as also including a flow restrictor therein which provides for sonic flow therethrough, and a fuel metering valving assembly having a valve member is effective for metering liquid fuel as at a superatmospheric pressure and delivering such metered liquid fuel as into the air passage upstream of the flow restrictor thereby causing the thusly metered liquid fuel and air to pass through the sonic flow restrictor before being discharged into the induction passage by the fuel-air mixture discharge member, and a portion of the exhaust gases from an associated engine is directed as to mix with the air flowing throu

Abstract: A plurality of interconnected linkages are shown with a resilient clip-like member operatively connected to a first of the linkages and resiliently engaging another of the linkages so as to cause an abutment carried by the first linkage to be held in contact with the other linkage and thereby eliminate rattling noises as would otherwise occur between the first and the other linkage.

Abstract: A fuel metering apparatus is shown as having a throttle body with an induction passage therethrough and a throttle valve for controlling the flow of air therethrough; associated fuel metering and control apparatus is shown operatively connected to individual fuel injection valve assemblies respectively associated with respective cylinders of an internal combustion engine; such fuel injection valve assembly is shown as being constructed as to be capable of disassembly thereby enabling the replacement of components thereof, as need replacement, without the necessity of having to replace the entire fuel injection valve assembly when only a portion thereof actually needs replacement.

Abstract: A throttle controlled induction passage assembly is shown as having a body with an induction passage formed through the body and a throttle shaft extending transversely of the induction passage and carried by the body, the throttle shaft having an axis of rotation about which the throttle shaft is rotatable, a throttle valve is carried by the throttle shaft for rotation therewith, and an abutment arrangement for preventing the throttle shaft and throttle valve from experiencing undue movement relative to the induction passage in both directions along the axis of rotation; a suitable thrust bearing is provided to permit application of the body and shaft in any position.

Abstract: A vehicle has a combustion engine, ground-engaging drive wheels, a power transmission for conveying power from the engine to the wheels, an induction passage for supplying motive fluid to the engine, a source of fuel, adaptive structure defining a fuel metering system communicating generally between the source of fuel and the induction passage, the adaptive structure having a valving arrangement in the fuel metering system effective to controllably alter the rate of metered fuel flow through the fuel metering system, and a manually controlled adjustment operatively connected to the valving arrangement, the manually controlled adjustment being effective to selectively control the valving arrangement in order to thereby selectively alter the rate of metered fuel flow to the engine.

Abstract: A fuel pressure regulator is shown as having two distinct and variable chambers sharing, as a common wall therebetween, a pressure responsive diaphragm which controls the position of a throttle valve actuator depending on the pressure differential existing across the diaphragm with such pressure differential being reflective of the pressure differential existing as from the magnitude of the pressure of the unmetered fuel to the magnitude of the pressure of the metered fuel; the throttle valve actuator serves to further open a fuel throttling valve or permit such fuel throttling valve to further close as to maintain the magnitude of the pressure of the unmetered fuel at a selected regulated magnitude.

Abstract: A fuel metering apparatus is shown as having a throttle body with an induction passage therethrough and a throttle valve for controlling flow through the induction passage, a fuel-air-emulsion discharge member is situated generally in the induction passage downstream of the throttle valve, an air passage communicates between a source of air and the fuel-air-emulsion discharge member, the air passage has a flow restrictor therein which provides for sonic flow therethrough, a fuel metering valving assembly is effective for metering liquid fuel at a superatmospheric pressure and delivering such metered liquid fuel into the air passage upstream of the flow restrictor thereby causing the thusly metered liquid fuel and air to pass through the sonic flow restrictor before being discharged into the induction passage by the fuel-air-emulsion discharge member, the fuel-air-emulsion discharge member has a plurality of discharge ports spaced from each other and directed into the induction passage, a heater is provided in

Abstract: A fuel metering apparatus is shown as having a throttle body with an induction passage therethrough and a throttle valve for controlling flow through the induction passage, a fuel-air mixture discharge member is situated generally in the induction passage downstream of the throttle valve, an air passage communicates between a source of air and the fuel-air mixture discharge member, the air passage is shown as also including a flow restrictor therein which provides for sonic flow therethrough, and a fuel metering valving assembly having a ball valve member is effective for metering liquid fuel as at a superatmospheric pressure and delivering such metered liquid fuel as into the air passage upstream of the flow restrictor thereby causing the thusly metered liquid fuel and air to pass through the sonic flow restrictor before being discharged into the induction passage by the fuel-air mixture discharge member, the ball valve member at least partly receives at least one resilient member which urges the ball valve

Abstract: A fuel metering apparatus is shown as having a throttle body with an induction passage therethrough and a throttle valve for controlling flow of induction air through the induction passage, first and second passages are provided with the first passage having an inlet at one end and communicating at its other end with a source of fuel, the second passage has an inlet at one end and communicates with the flow of induction air thereby serving as a metered fuel discharge nozzle, fuel at a regulated superatmospheric pressure is delivered as through a movable tubular member and discharged through an open end thereof in a manner whereby such discharged fuel is alternately directed toward the inlet of the first passage and toward the inlet of the second passage, a magnetic field is cyclically produced as to thereby cause movement of the movable tubular member as to thereby cause such discharged fuel to be alternately directed to the inlets of the first and second passages, the portion of the fuel directed to the inle

Abstract: A fuel metering apparatus is shown as having a throttle body with induction passage means therethrough and a throttle valve for controlling flow through the induction passage means; fuel under superatmospheric pressure is metered through a multi-stage fuel metering valve assembly and such metered fuel is supplied as to the induction passage means; the multi-stage metering valve assembly is shown as having a valve member with a step-like surface reciprocatingly cooperating with a metering orifice of fixed effective flow area so that during a first range of metered fuel flow a first portion of the step-like surface is effective for cooperating with the metering orifice in determining the rate of metered fuel flow while during a second range of metered fuel flow a second portion of the step-like surface is effective for cooperating with the metering orifice in determining the rate of metered fuel flow.

Abstract: A power valve assembly has a pressure responsive diaphragm acting generally in opposition to spring means for controlling the position of a related contoured valving member; when engine manifold decreases due to increasing engine loads, motion transmitting means associated with the pressure responsive diaphragm operatively engages and causes the valving member to be progressively further opened generally in accordance with the decrease in the magnitude of such engine manifold vacuum.