Abstract: An rpm governor for fuel injection engines whose function is to raise the idle rpm for a predetermined time period while the engine is cold in order to guarantee a clean idle running cycle of the engine. The rpm governor includes a compensating device having a thermostat which is designed to engage an idling spring and whose duration of engagement is determined by a heating device located on the thermostat. When the engine is cold, the tension in the spring is raised by the compensating device, thus effecting a higher rpm level, which rpm level is later reduced to normal idle when the governor has reached an operational temperature upon the passage of a predetermined period after cold starting.

Abstract: The present invention is directed to a conveyor in which an article to be transferred is turned through an angle by means of two pluralities of juxtaposed rollers in a single plane, the pluralities having the spin axes of their rollers parallel to each other within the plurality and the spin axis of each roller in one plurality inclined at an angle to the spin axis of each roller in the other plurality by approximately half the angle through which the article is to be turned during the transfer.

Abstract: A regulating device used with the fuel injection system of an internal combustion engine, for regulating the proportions of the operating mixtures of the engine. The regulating device is embodied as a pump which is incorporated into the existing fuel injection system. The pump has a chamber within which a piston is displaceable. This piston is coupled with the fuel rate adjusting member of the fuel injection pump of the fuel injection system, and is displaced in accordance with the adjusted position of the fuel rate adjusting member. The pump is also connected with the throttle plate of the fuel injection system located in the induction tube of the engine. By reason of these connections, rapid adjustment movements of the fuel rate adjusting member can be effectively translated to a proper adjustment of the throttle plate without the delay found in presently known regulating devices.

Abstract: What follows is a description of a three track mechanism assembly for a vehicle door, and in particular for a light rail vehicle door. Each track mechanism includes a guide rail for guiding the door in its opening and closing movement relative to the vehicle body. Two of the track mechanisms include actuators for producing the opening and closing movement of the door. One of these actuators produces the desired longitudinal displacement of the door relative to the vehicle body, while the other actuator produces the desired transverse displacement of the door relative to the vehicle body. In addition, an extraction device can be included with the track mechanism having the actuator producing the desired longitudinal displacement for assisting the other actuator in producing the desired transverse displacement of the door relative to the vehicle body.

Abstract: A bar display comprising incandescent segmented display module presenting a plurality of dot positions to the viewer wherein a plurality of miniature incandescent lamps illuminate all the segments except one, the latter segment being illuminated by an elongated incandescent lamp capable of illuminating not only this one remaining segment but all segments or supplementing the miniature lamps depending on ambient light conditions. This arrangement permits a fully lighted dot position bar display with only one lamp thus saving power or permits a dot position bar display with each individual miniature lamp illuminated separately or a bar display responding to ambient lamp conditions, by utilizing only the elongated lamp alone or the elongated lamp plus the miniature lamps as desired.

Abstract: An anti-wheel-lock or anti-skid system for vehicles has a multi-position valve assembly which permits selective actuation of two different groups of brakes. In addition, the valve has provision for selective actuation of individual wheels in one of the group of brakes, for example the front wheels of the vehicle. The multi-position valve assembly has a movable member which is positioned by an electric or hydraulic drive which is controlled by switches actuated by the movable valve member, indicating that a desired position has been attained.

Abstract: There is proposed a pressure regulating valve for a fuel injection system which serves to regulate the heating-up fuel amount for an explosion, external auto-ignition, internal combustion engine. The pressure regulating valve comprises a movable valve component which is urged in the closing direction by a pressure spring which during the heating-up phase acts against a temperature responsive element which in turn acts with a force that can be influenced by another temperature responsive electrically heatable element so that during the heating-up phase the air-fuel mixture can be proportioned in accordance with the requirements of each internal combustion engine.

Abstract: The air flow rate and the speed of an internal combustion engine are sensed and translated into pulse trains of variable frequency. During a time interval defined by the rpm related signal, a digital counter receives and counts the air flow rate frequency. Subsequently, the contents of this counter are counted out by a pulse train whose frequency is adjustable depending on other engine conditions such as start-up, warm-up, idling, full-load and the like. The apparatus also includes circuitry for generating a control pulse of minimun length.

Abstract: An apparatus for use in association with a fuel mixture preparation system for an internal combustion engine in which the output signal from an oxygen sensor located in the exhaust system is used to provide closed-loop control of the mixture ratio supplied by the mixture preparation system. The apparatus includes a principal comparator in which the sensor signal is compared with a reference value and a subsequent integrator which supplies correcting signals to the mixture controller. A special circuit between the principal comparator and the integrator can delay the signal transmission between these two elements in one direction of change, thereby causing an effective shift of the point of operation of the control loop to a different point in the sensor output curve, to compensate for aging, etc.

Abstract: A method and apparatus for use with fuel mixture preparation systems which employ an oxygen sensor in the exhaust line to determine the composition of the combustible mixture supplied to the engine and which adjust the mixture on the basis of the bi-valued signals from the sensor. In order to permit the use of these signals at lower than normal operating temperatures, where the internal resistance of the sensor is high and the output signal is skewed, the invention proposes generating a correction current which is passed through the sensor and which causes a voltage drop which symmetrizes the output voltage so that the two branches of the output signal always lie respectively above and below a fixed set-point voltage, thus permitting control loop processing.A circuit is also described which supplies the correcting current by comparison of the DC level of the output signal with the set-point value in a secondary feedback loop.

Abstract: Electrical connectors comprising complementally formed plug and socket elements each of which include safety disks to conceal the contacts the plug and socket elements further having pilot contacts and power contacts as well as mating means arranged to delay the separation of the power contacts and interlock means for the respective elements capable of temporarily immobilizing the plug and power socket elements to provide a power cut-off for electrical engagement of said elements.

Abstract: A fuel mixture control system, for example a fuel injection system, has a control device which accepts signals for final correction of the fuel mixture. In particular, the final correction is made on the basis of engine roughness which is used as a measure of the degree of lean burning of the engine. The engine roughness is determined digitally by forming second differences of engine period in sequential digital counters whose contents are shifted after each counting period. The final counter is counted down at an rpm-dependent frequency. The digital datum related to engine roughness is examined for two conditions, i.e., for whether it exceeded a set-point value and for the nature of its algebraic sign. In one of the four possible states of combination of these conditions, the mixture is slightly enriched, whereas in the other three states, it is leaned out to a maximum degree.

Abstract: A flexible hose comprising a soft hose main body, first helical rigid reinforcing means embedded partially or wholly in the soft hose main body and having a large cross sectional area, and second helical rigid reinforcing means embedded in the wall of the soft hose main body and having a smaller cross sectional area than the first helical rigid reinforcing means. The combination of the reinforcing means having different cross sectional areas gives the hose sufficient flexibility and strength against flattening and against pressure.

Abstract: A device for taking samples of dust in a pipe or a chimney discharging gases, into the atmosphere.The device permits completely emptying the sampling tube of the dusts to be measured by means for rapidly and briefly closing the orifice of the sampling tube, which produces, once or several times during each sampling period, a pneumatic shock in the sampling tube which is subjected to pumping.Such a device permits effecting particularly precise measurements of the concentration of dust by weight. It also permits a continuous utilization of the device during very long periods of time without its clogging up.

Abstract: This invention discloses fuel injection nozzles for internal combustion engines which are known to have a needle valve that is shiftable under pressure of the fuel supply against the force of a closing spring and more particularly the improvement wherein the opening stroke of the needle valve can be changed by a transversely movable slide element that includes a spool-like body having a medial area of varying diameter which serves to limit the stroke of the needle valve.

Abstract: The control pressure valve assembly for a fuel injection system of an internal combustion engine provides variable fluid pressure which provides a restoring force against the fuel control plunger to alter the fuel-air ratio in dependence on engine and environmental variables. In particular, the fluid pressure is regulated by a spring loaded diaphragm valve which is also subjected to a variable closing force provided by an air pressure cell and by a first temperature sensitive element which opposes the forces of the spring and of the air pressure cell to provide decreased fluid pressure at low engine temperature and a second temperature-sensitive element to oppose the force of the air pressure cell only below a predetermined temperature.

Abstract: A recording and/or reproducing apparatus for magnetic tape in cassettes comprises a fixed frame plate, onto which there is slidably mounted a cassette receptacle movable in the direction of introduction and expulsion of the cassette. To the slide receptacle there is articulated a carrier plate which carries the tape reel shaft, the tape drive capstan and the electric motor. The cassette receptacle is connected to the carrier plate by means of a flexible element, in the form of a flexible strip made of metal sheet, which acts as an element of transmission of the movement of the carrier plate. Hence, upon movement of the cassette receptacle in the direction of introduction of the cassette, the carrier plate, which moves in the said direction together with the cassette receptacle, is also caused to move upwards towards the cassette receptacle, in unison with same. And the reverse is also true.

Abstract: This invention relates to a pump and motor unit which is particularly adapted for supplying fuel and which comprises a pump rotor and motor armature, the bearings of which are disposed independently of each other on a fixed axis.

Abstract: A fuel injection system for an internal combustion engine includes an air flow responsive baffle plate in the induction tube which is subject to an adjustable elastic restoring force. The pivotal shaft of the baffle plate rotates inside of a bushing which is itself adjustable rotatable within the induction tube. A control slot in the bushing is covered to varying extent by a control edge on the pivotal shaft so that fuel which enters a groove in the shaft is metered according to the relative rotation of shaft and bushing. The metered fuel is conducted through a conduit in the baffle plate and is expelled through a nozzle or a valve into the induction tube.