Abstract: A central digital memory contains data relating values of operational variables of an installation to values of a stored parameter. The central memory is addressed in parallel via input lines carrying the address of the stored data. The address is generated by selecting one of several discrete input lines leading to an address selector memory which contains preliminary addresses related to the various operational states of the installation. A portion of the preliminary address is delivered directly to the central memory whereas another portion is used to preset a counter. If the particular operational state is dependent on another parameter, for example temperature, a temperature-dependent clocking frequency is admitted to the counter and alters its contents which are then used to supplement the first portion of the address already delivered to the central memory. If no temperature dependency exists, the second portion of the address is passed on without change.

Abstract: A method of printing textile and other surfaces and particularly relates to a transfer sheet comprising a flexible carrier sheet having a design in a drying ink surface which design is not transferable to a receptor material by the application of heat alone and a polymer layer applied over the design so that the application of heat to the transfer sheet causes the polymer layer to adhere to the receptor material so that the carrier sheet can be removed leaving the ink design transferred to the polymer which itself is totally transferred to the receptor material. The invention also includes a method of forming a transfer and a method of decorating a material, particularly a textile material, using the transfers and methods of the invention.

Abstract: A fuel injection system for use with internal combustion engines in which is provided an air aspiration line within which is included a fuel valve for the apportionment of a fuel quantity proportional to the air quantity. The fuel valve extends transversely of the air aspiration line and is arranged to include a plurality of communicating passages about which is positioned a perforated carrier body. A sleeve that includes valve members is also arranged to encircle the carrier body and together therewith adapted to control fuel flow and air flow to said engine.

Abstract: The fuel injection control pulses of an internal combustion engine may be shortened or lengthened to provide operation of the engine at a definite fuel-air ratio. When operation takes place in a leaned-out region, the engine suffers dynamic instability, resulting in rapid fluctuations of the rotational crankshaft velocity, superimposed on regular, periodic changes due to compression changes.The crankshaft speed is tested at two different locations of the angular path by passing markers in front of an inductive transducer. The output signal from this transducer gates the counting input of a digital counter which is supplied with a pulse train at a constant, high frequency. A flip-flop alternately causes upward and downward counting in the counter so that a net difference of counted pulses is formed after each two successive counting periods.

Abstract: A shelf system having a series of support surfaces which are retained in cooperative, spaced relation by an article constructed from a blank of material which is cut and scored in a predetermined manner so that it may be subsequently folded into the finished product which may be utilized to stabilize an assembly of support columns which in turn are associated with said shelving system.

Abstract: A draw twisting machine is provided with a plurality of synchronous motors which drive respective draw rollers. The synchronous motors are supplied with electrical power from an A.C. generator having a variable frequency output. The A.C. generator is driven by a D.C. motor which is operatively arranged to run at variable angular velocity (rpm), the velocity being steplessly variable over a wide range. The D.C. motor may be driven at a crawl speed by an asynchronous electric motor via a transmission and overriding clutch.

Abstract: The invention relates to improvements in testing apparatus for brake systems including a diagnostic unit provided with a brake cylinder having a selectively switchable magnetic valve adapted for assembly with an outlet line leading to said cylinder. The magnetic valve actuates a double-acting valve that controls the outlet line and a return line and a sensor associated with said magnetic valve is arranged to operate the same under varying pressure conditions.

Abstract: A method for opening and erecting folded box blanks provides that one side of the blank is grasped and bent outwardly to acquire convex curvature, thereby causing opposite sides of the blank to move away from it, leaving a gap which initiates the opening process. An apparatus for practicing the method provides two suction cups to perform the bending and a stop to apply a force against a bent edge of the blank to cause the erection of the blank to assume its final form.

Abstract: A paint brush holder according to the invention is provided with a base having a lip which is complemental to the chime of a paint can and includes a cradle having a flat edge at its juncture with the base and offstanding at an acute angle with respect to the base, a brush retention means associated with an upper extremity of the cradle to support a paint brush by the metal band thereon, the flat edge of the cradle at the juncture of cradle and base providing for wiping excess paint from a brush dipped in the paint can.

Abstract: An apparatus including a carburetor having a fixed venturi is utilized for regulating the fuel-air mixture delivered to an internal combustion engine. The apparatus includes at least one orifice defining structure, a fuel chamber and a throttle device. The throttle device is connected to the fuel chamber and to the orifice defining structure and is fuel actuatable for varying the cross-sectional flow area of the orifice in accordance with parameters characterizing the operational behavior of the engine.

Abstract: A fuel injection system employing continuous injection into the induction manifold for varying the fuel-air ratio during the warm-up phase of the engine. A pivoting flap responds to the air flow through the induction tube and rotates a metering valve core. Openings in this valve core cooperate with openings in the valve cylinder to form a metering valve aperture of variable cross-section. The pressure differential across this aperture influences the metered fuel quantity and this pressure differential can be varied during the warm-up phase of the engine. The variation in the pressure differential is accomplished by heating a bi-metallic spring which disengages from the closure element of a diaphragm valve, increasing the closing bias thereof.

Abstract: A fuel injection system for internal combustion engines includes a fuel metering and distributing assembly. The pressure gradient across this assembly is controlled by an electromagnetic fluid pressure modulator which acts on one side of equal pressure diaphragm valves. The pressure gradient is monitored by a pressure-to-voltage transducer whose signal is fed to the modulator as a control signal. One or more of the diaphragm valves may be biased in the closing direction and the controlled pressure line may also include a pressure transformer.

Abstract: An internal combustion engine is operated in the lean-running condition where measurable engine roughness occurs. The degree of this engine roughness, which is due to fluctuations in acceleration, is measured and compared with set-point values in a fuel metering control loop. In order to prevent undesirable control characteristics, the effect of positive changes in acceleration is prevented from engaging the final control element by a switching element which interrupts the signal flow to the final control element during positive changes in engine accelerations.

Abstract: The invention relates to a method and apparatus for producing steel piling and a machine for driving the same in earthen strata and further teaches fabrication of the steel piling either by a rolling mill or an extrusion machine, said piling being provided with integral portions that are later deformed to produce longitudinally extending ducts that are suitably pierced to jet streams of water carried by the ducts to the opposed sides of a section of piling.

Abstract: A fuel injection system for an internal combustion engine includes an air flow responsive throttle element in the induction tube which is subject to an adjustable elastic restoring force. The throttle element is attached to a bushing which rotates about a pivotal shaft mounted 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 out according to the relative rotation of shaft and bushing. The relative position of the throttle can be adjusted by a pressure cell.

Abstract: Metals are recovered from the electrodes and connections of spent electric storage batteries by the step of: (a) recharging the spent electric batteries; (b) removing the electrolyte from said recharged electric batteries; (c) removing the bottom of said recharged batteries from which the electrolyte has been removed; (d) washing the electrodes and inside and outside the bottomless batteries obtained in step (c) with water; (e) drying the batteries washed in step (d) and closing the openings in the top of the dry batteries; (f) connecting the positive terminal of a power supply to the negative pole of the batteries obtained according to step (e) with protection against contact between electrolyte and the negative pole; and (g) immersing the batteries obtained according to step (f) in an electrolyte.

Abstract: A process and apparatus for the continuous electrolytic refining and electrochemical extraction of elements and compounds, in which cathodes and anodes, connected to a D.C. power supply, are continuously moved through a tank containing electrolyte along parallel paths with the direction of movement of the cathodes being opposite that of the anodes. Since the effective area of the cathodes increases as the effective area of the anodes decreases, the opposite motion of the anodes and cathodes tends to equalize the effective areas of the cathodes and anodes in close proximity with one another along the entire length of travel through the tank, thus allowing a higher current density to be maintained, and a high quality deposit on the cathodes. The cathodes and/or anodes can be in the form of a continuous sheet or a series of individual plates.

Abstract: A fuel injection valve assembly for supplying a preliminary injection of fuel of a constant amount regardless of engine speed before the main injection of fuel begins comprising a spring biased, fuel supply pressure responsive, preliminary injection piston for the preliminary injection, a fuel supply pressure responsive loading piston for controlling the main injection fuel flow and a needle valve, both of the latter being biased oppositely by a common spring. Separate supply ducts for the preliminary and main fuel injections and the arrangement of the valve surfaces on the loading piston and needle valve enable the loading piston to be held closed and the needle valve to be opened by the pressure imposed on the preliminary injection piston and remain open long enough for the preliminary injection piston to travel its full stroke before closing and before the needle valve is opened for the main injection.

Abstract: An X-ray machine, especially for mammography, includes an X-ray source and a suitable table or support for the object to be examined. The table is transparent to X-rays and holds sheets of X-ray film or the like to record the transmitted radiation. In addition to a fixed diaphragm which defines a substantially pyramidal primary beam, there are provided three sets of beam-defining slits, one behind the fixed diaphragm, one ahead of the object of examination and one just ahead of the recording medium. These three slits are disposed in geometrical similarity, i.e., their free width increases in proportion to their distance from the source. Furthermore, each of these slits is movable in a plane normal to the main axis of the primary beam. The three slits together define a narrow angular portion of the primary beam and their motion is so coordinated that the narrow beam is scanned across the object from one extreme position to the other.

Abstract: A buttoning means is provided having two parts, one of which holds a barbed member able to pierce the item to be buttoned and then to be restrained by the other part, the parts are tethered by a tethering means that was coiled in one or both of the parts prior to buttoning and is uncoiled when buttoning has been effected.