Abstract: The invention concerns an anti-lock control system for braking vehicle wheels having a pickup element to determine the wheel velocity. An evaluating circuit connected to the output of the pickup element produces control signals for varying the fluid pressure in the braking system if the signals corresponding to the wheel velocities deviate by predetermined threshold values from the signals corresponding to the curve of the vehicle speed. Switching apparatus containing timing elements is provided which respond along the lines of a pressure reduction when the pressure control unit is initiated and then effect, for a short time, a switchover of the control. Furthermore, control signals are produced only in case of deviations by more than the maximum threshold value. Finally, testing apparatus is included which determines, after the threshold value has become effective, when the initiating signal disappears and which then maintains the switchover condition for a predetermined longer period of time.

Abstract: An improved back-pressure valve for heating installations having an annular mask 7 mounted transverse of a channel in a pipe or pump, guiding means 13 affixed to the mask 7 diametrically and extending along the channel, a sealing disc 8 for covering an opening formed by the annular mask and having two diametrically opposed protuberances 12 extending into the guiding means 13 to make the sealing disc 8 pivotally and linearly movable in response to the fluid flow passing through the pipe or pump.

Abstract: This invention relates to improvements in dispensing guns and more particularly to guns of the type provided with dual conduits into which plural streams of two parts of adhesives can be fed and later intimately mixed in the detachable nozzle at the end of the gun immediately prior to application of the mixture to a surface.

Abstract: An apparatus is proposed for controlling the composition of the operating mixture in internal combustion engines. In this apparatus, a control of the air quantity is effected in accordance with the arbitrarily adjustable fuel quantity by throttling the air intake cross section and by remnant filling of the combustion chambers of the engine by means of recirculated exhaust gas. On the basis of the comparison of the aspirated air quantity with the injected fuel quantity by means of a differential pressure valve, a control pressure building up at a fixed throttle in a discharge line controlled by the differential pressure valve is generated as a control variable for an actuation device of the air throttle valve or for the exhaust recirculation valve in an exhaust recirculation line.

Abstract: A barrel extension for a weapon having a barrel internally threaded at its forward end together with various associated devices including a hand grip and a wrench which includes a tubular member having a smooth bore and an externally threaded end portion threadedly engageable with the threaded forward end portion of the weapon barrel with the barrel extension bore aligned with the barrel bore and including a hollow nightstick having an interior forming a storage cavity for the barrel extension, the nightstick having an internally threaded open end portion for threaded engagement with a threaded portion on a closure member to close the storage cavity in order to transport the barrel extension in a concealed manner.

Abstract: A motor driven reciprocating blade dustless cutter which is provided with an angular cutting edge that operates with a die in order to cut the material by a shearing action. The stroke of the cutting blade and the slope of its cutting edge is such that only a portion of the blade passes through the material as the material is sheared. During each stroke, the cutter blade shears and forces only a small portion of sheared material out through the die as a continuous strip. The strip of material is substantially the same width as that of the thickness of the cutter blade.

Abstract: Paint is removed from a painted surface by applying to the surface a solution containing an alkali metal hydroxide and a polyacrylate thickening agent having a viscosity which decreases above a predetermined transition pH. The initial pH of the composition is adjusted to just above the transition pH by including a sufficient amount of the hydroxide in the composition so that the composition is readily spreadable. As the pH of the composition falls during use its viscosity increases; thereby becoming more firmly attached to the surface; permitting the composition to remain in contact with the surface for a sufficient time to destroy the adhesion of the paint to the surface.The thickening agent is a cross-linked carboxylated copolymer of acrylic acid and methacrylate.

Abstract: A piston-type internal combustion engine is proposed which has externally-supplied ignition and in which fuel is injected, from the direction of the intake tube, past the opened inlet valve directed into a partial combustion chamber of disc-like embodiment, the bottom or top of which is defined, respectively, by the surface area of the piston substantially by the valve plate of the inlet valve. As the result of the injection of the fuel in the last portion of the intake stroke and the spin formation in the compressed charge with the aid of guided squeeze flows, a layering of the charge is attained, which improves the ignitability and the speed of complete combustion of the operational mixture introduced into the combustion chamber, with low intake and transfer losses.

Abstract: A fuel injection pump having a hydraulic injection onset adjustment apparatus is proposed in which a supplementary variation of the injection onset is obtained by means of the variation of the pressure deviating from proportionality. The pressure control valve used has a throttle connection between the pressure chamber and the spring chamber. The variation of the pressure is obtained by means of controlling the discharge channel of the spring chamber, by means of a control slide exposed to the pump pressure, whose restoring spring is variable in accordance with engine characteristics.

Abstract: A block of cushioning material arranged to be disposed in a cavity within a drive cap of a pile hammer, the drive cap being positioned on the upper end of a pile for impact engagement by the ram with the block of cushioning material during a pile driving operation, the block of cushioning material being of high heat conductivity and arranged in heat transfer relationship with the inner wall of the cavity whereby hysteresis heat generated within the block of cushioning material during impact driving is conducted by the block to the drive cap acting as a heat sink for ultimate radiation of the heat into the ambient air.

Abstract: A fuel injection valve and a method for the automatic establishment of the desired armature stroke of the fuel injection valve are proposed which serves the purpose of injection at low fuel pressures into the intake tube of a mixture-compressing internal combustion engine with externally-supplied ignition. The fuel injection valve includes a magnetic coil surrounding a core and a flat armature guided by at least one guide diaphragm held on its outer circumference, which is firmly connected with a movable valve element cooperating with a fixed valve seat. The fuel delivered via a fuel inlet nozzle can proceed through apertures and recesses in the guide diaphragms past the valve seat to a fuel discharge nozzle by way of which a portion of the delivered fuel can flow back again into a fuel return line. Via an annular channel the fuel stream exiting from the nozzle bore can be prepared with air which surrounds the fuel stream.

Abstract: A method and apparatus for improving the acceleration behavior of a self-igniting internal combustion engine driven with an exhaust turbocharger by displacing the onset of injection during the acceleration phase toward "early", and a combustion chamber pressure is attained, which at least in part compensates for reduction in engine power caused by sluggishness of the turbocharger and a resultant smaller cylinder charge. Further increase in power is attained by means of an increase in the fuel component made possible by the adjustment of injection onset without exceeding the smoke limit of combustion. Apparatus are furthermore proposed for performing the method according to the invention, in which with the aid of an acceleration signal obtained by hydraulic or electric elements an adjustment toward "early" is effected in a hydraulically functioning injection adjustment device.

Abstract: A fuel injection system is proposed which functions with pump/nozzles, in which a control slide which determines the injection onset and disposed in each pump/nozzle is triggered by a distributor unit and the variation of the injection onset is effected by rotation of an annular slide which surrounds the distributor.

Abstract: Illuminated vehicular seat belt having an illuminated clip structure attachable to a seat belt near or proximate to the buckle having the purpose to facilitate easy location at night or in unlighted parking garages the end or ends of a seat belt; including a fiber optic cord or pipe extending from a light source to a display portion of said buckle for receiving light from said fiber optic pipe.

Abstract: The present invention relates to a fuel injection system designed to supply fuel to a mixture compressing externally ignited internal combustion engine. The fuel injection system comprises an air metering member which is displaceable in a suction tube in accordance with the air flow rate and which displaces the movable part of a fuel metering valve in opposition to a resetting force which is produced by fuel operative in a pressure chamber into which projects an effective face of the movable part of the metering valve. The fuel is metered at the fuel metering valve under a specific pressure difference determined by the regulating valve means, the regulating valve means being influenced by the pressure in a control pressure line in which the pressure chamber is also disposed.

Abstract: A metering and distribution valve assembly is proposed for a fuel injection system of an internal combustion engine. The metering and distribution valve assembly includes a control slide having a head 68 and a control edge and a slotted sleeve with at least two control slits. The control edge opens the control slits to a greater or lesser degree in accordance with the relative motion between the control slide and the control slits in the slotted sleeve. An end face of the control slide adjacent to the control edge is exposed to a control pressure which is lower than the system pressure engaging the control edge. The pressure drop at the circumference of the control slide head formed between the control edge and the end face is capable of being influenced in such a manner that the control slide head rests unilaterally on the slotted sleeve at least during a portion of the displacement movement. As a result, better metering precision is obtained.

Abstract: A fuel injection nozzle of the type which includes an outwardly opening valve needle of a valve group and an inner longitudinal bore connecting the valve group with a fuel inlet to the nozzle. The longitudinal bore includes a narrow section between two larger sections, the two larger sections being thus decoupled from pressure variations in either section.

Abstract: A fuel injection nozzle holder for internal combustion engines is proposed having an induction coil glued into an intermediate disc provided with two contact springs, which first are connected with the ends of the winding and second are embodied as contact tongues. Each tongue, together with an insulated wire lead, makes a releasable contact within the nozzle holder body.

Abstract: A securing apparatus is proposed for electric fuel pumps intended for direct in-tank installation, which enables satisfactory removal of fuel vapor from the suction area of the pump, but prevents the transmission of vibration onto the fuel spinner fixedly mounted in the tank. This is accomplished in that the elastic properties of one or more rubber elements, directly connected in the form of sleeves to the pump, are maintained even with the effects of aging, since the rubber elements are primarily stressed only by shear or bending forces. The pump is inserted, with the mounted rubber element, into a corresponding device in the fuel spinner and, so far as this is necessary, secured with clamping elements. The rubber elements fulfill the functions of holding the pump, sealing the pump suction chamber from the tank, damping noise, and removing vapor in the tank.