Abstract: A replaceable gang head machine tool unit having a driving motor, the unit being mounted on a slide table arranged to be driven and advance in a given direction wherein: there is provided an annular rail comprising a rear stationary rail and a front movable rail disposed on a machine base, a plurality of gang heads disposed around the annular rail and supported thereon, the plurality of gang heads being arranged to be rotated on the annular rail by an index table to permit any desired gang head to be selected therefrom on the movable rail. When the working unit is in a retreated position in the machine base, the selected head on the movable rail may be joined to the unit for travel therewith together with the movable rail.

Abstract: A fiber-reinforced light alloy cast article for use in various mechanical parts such as, for example, a connecting rod, a rocker arm, and so forth in an internal combustion engine. The composite light alloy cast article includes therein a portion filled with a shaped body made of an inorganic fiber material of high elasticity and high mechanical strength, and another portion filled with a shaped body of inorganic fibers having low elasticity and high hardness and having an appropriate bulk density suited for required purposes, the fiber-shaped bodies being filled in the required portions of the composite light alloy cast article by high pressure solidification casting.

Abstract: A hermetically closed vessel is provided in its top portion with a liquid feed line provided with a check valve and another valve controlled by a float; a compressed air feed line provided with a solenoid valve to control the input of air; and a liquid discharge line extending almost to the bottom of the vessel. A branch located about mid-height in the liquid discharge line is connected to a flexible tube having an open free end attached to a means for regulating the height of the free end. This arrangment allows for the amount of liquid to be ejected to be precisely controlled by the height of the free end of the flexible tube.

Abstract: A carburetor for combustion engines, having upstream of an arbitrarily operated throttle valve, an additional throttling element which is controlled automatically by a membrane unit operated by underpressure of vacuum in accordance with air flow. The additional throttling element controls a fuel jet by means of a needle. The discharge location of the fuel jet is at a point where essentially the same underpressure prevails as in the mixing chamber formed between throttle valve and throttling element. In an enrichment system for the heating phase the fuel jet is controlled by a needle whose variable position is determined by the position of a temperature-sensitive element via a lever, and the fuel quantity for acceleration is varied by means of a second membrane unit. The discharge location of this enrichment system is downstream of the throttling element. The second membrane unit may be actuated by underpressure and may have a pressure chamber closed by a movable membrane loaded by a spring.

Abstract: An anti-skid brake control device and associated method in which the device includes a wheel cylinder having defined therein a first hydraulic chamber connected with a brake fluid line extending from the master cylinder and a second hydraulic chamber connected with a pressure controlling fluid circuit. As the brake fluid line is isolated from the pressure controlling circuit by the output member of the wheel cylinder, the brake system can operate effectively, though in a conventional manner, should oil leakage occur in the controlling circuit. On a four-wheeled vehicle, each pair of front or rear wheel cylinders can be served by a common arrangement of such pressure controlling circuit for anti-skid control.

Abstract: A caliper supporting device in which a caliper is connected to a bracket through a first slide pin and a second slide pin so that the caliper arranged so as to sit astride of a part of the brake disc may be moved in a direction of a rotating axis of the brake disc. A resilient grommet for resiliently supporting the second slide pin only lengthwise thereof is mounted in a supporting hole in the form of an elongated hole. The second slide pin is directly brought into contact with a side wall of the supporting hole by a braking torque acting on the caliper.

Abstract: A method for detecting surface and subsurface flaws in rolled products in which an indicator coating is applied to the surface of a rolled product, whereupon the coated surface is heated with high-frequency currents. The high-frequency heating produces a temperature gradient between good and defective portions of the blank, which is sufficient to bring about a thermochemical transformation of the indicator coating over the defective areas, accompanied by a change in the color of the coating in those areas. Dark spots on the light coating indicate the locations of surface and subsurface flaws. The sharp images of flaws are visible over a long period of time on the surface of the rolled product, which makes it possible to dispense with the marking of flaws. The defective areas thus identified are chipped.

Abstract: An electrophotographic apparatus for forming or printing any desired number of copies of a document from the same and single electrostatic charge latent image comprisinga photosensitive member such as a photoconductive drum which is rotated at a constant velocity;a corona charger for uniformly charging the photosensitive drum;a document feeding device for advancing the document through an exposure-scanning portion at a constant speed;an optical device for projecting an image of the document at the exposure-scanning portion onto the drum to form an electrostatic charge latent image thereon;a developing device for developing the latent image with toner particles to form a toner image;a transferring device for transferring the toner image onto a record paper;a fixing device for fixing the toner image on the record paper to form a final copy;a clock pulse generator for producing clock pulses in synchronism with the rotation of the photosensitive drum;master and slave timing pulse generators for receiving the cloc

Abstract: In a cabin for trucks with trailer-fixtures, a first sleeping-berth is arranged behind and between the seats on the rear wall of the cabin pivotally about a horizontal pin. A second sleeping-berth is provided, that is conveyable from an operational position next to the first sleeping-berth to a horizontal storing position above the first sleeping-berth. A linkage for moving the second berth comprises two cantilevers that are pivotally fixed to the cabin about a horizontal pin and hold the second sleeping-berth at the lateral sides thereof.

Abstract: A method and device for the projection printing of a mask onto a workpiece, particularly onto a semiconductor substrate, said mask being illuminated by means of a light source and imaged on said workpiece by means of a projection lens, said workpiece being coated with a photoresist.

Abstract: An arrangement for presetting musical tone effects in an electronic musical instrument in which a first system is provided with a plurality of tablet-shaped switches which are connected through respective memory elements in a memory circuit to respective control electrodes of a plurality of gates for selection of musical tone effects. A second system is also provided with tablet-shaped switches which are connected to control electrodes of gates for selection of musical tone effects. Either one of the first or second system is selected, and the memory circuit has a write switch arranged so that after completion of the writing of output signals of respective tablet switches by operation of the write switch, the memories remain unchanged by the writing, even by operation of respective tablet-shaped switches. The memory elements in the memory circuit of the first system are in a plurality of lines in conjunction with a plurality of line selection switches for selecting the respective lines of the memory elements.

Abstract: A method and apparatus for the preparation and control of an air-fuel mixture in which compressed air is divided into two streams, one of which is at a pressure taking into account engine load and existing atmospheric conditions and serves for supplying and sucking fuel and its preliminary atomization, the second stream serving for successive atomizations of fuel and correction of discharge while preventing secondary coagulation. The mixture is fed to the engine intake manifold, where it is further mixed with air sucked by the engine.

Abstract: A system for active compensation of undesired relative movement particularly during loading of cargo comprising a long-periodic acting system for compensation of static loading caused by the load and a short-periodic acting system for active compensation of undesired relative movement of the load relative to a reference value. The long-periodic system includes a compensating cylinder provided with two pistons acting in opposite directions, the cylinder being connected to one or more pressure loaded reservoirs operating pneumatically. The short-periodic system includes at least one hydraulic cylinder and the position of the short-periodic system is determined by measurement of acceleration of the end of the loading crane beam by accelerometers.

Abstract: A hydrostatic transmission control system including a variable displacement pump driving a constant displacement motor arranged in a hydraulic circuit having a controlled by-pass valve interconnected for positioning the pump swash plate in two established positions corresponding respectively to a stand still position or a full speed position of the motor. A thermosensitive element is coupled to the valve control spool for bypassing the flow of the pump in the event of motor jamming.

Abstract: An abrasive body, typically in the form of a cylinder, comprising an abrasive compact and a core of high rigidity material such as cemented carbide embedded in to the compact, the compact comprising a mass of abrasive particles such as diamond or cubic boron nitride particles, present in an amount of at least 70 percent by volume of the compact, bonded into a hard conglomerate and the body of high rigidity material being located inside the side surface of the compact and extending from the top surface to the bottom surface of the compact.

Abstract: Cellular concrete is produced using, as filler, the sandy fraction of 80-90% SiO.sub.2 content which is a waste material from the combustion of brown coal and, as binding agent lime and cement. These raw materials are dry ground and mixed with water having a temperature of about 50.degree. C. and with a pore-producing agent. The thus obtained mixture is poured out into forms.

Abstract: A local hemostatic comprising an active principle which is the incomplete ferric salt of polyacrylic acid of the formula: ##STR1## in combination with a pharmaceutical solvent which is water or physiological solution. The active principle content is 1 to 2 percent by weight.

Abstract: A method and system for the implementation of binary multiplication of a number by a sum of two numbers, applicable in the computer systems, particularly in the specialized processors for numerical computations. In the method according to the invention the multiplier, as expressed by two numbers-summands represented in a binary number system, is transformed parallelly into a positional number system with digits from -2.sup.g-1 to +2.sup.g-1, where "g" is the number of binary positions of multiplier. These two numbers correspond to one partial product--summand of the result. The multiplying system contains registers of multiplier summands, a register of the multiplicand, a system converting the multiplier summands, the system preparing the partial products and the system summing them. Signals are generated by the converting system and represent digits from -2.sup.g-1 to +2.sup.

Abstract: A collapsable frame for children's furniture, of the type which is formed of a rectangular enclosure with four independent side members. The side members are fixed together but detachable from each other and a base. In application to a playpen, the base is made up of two co-planar sections which on their two opposing edges have tongues on each in the continuous plane for support and abutt against their respective lower side beams of the two opposite side members. The lower side beams of the other two side members carry the support of the corresponding edges of the base panels, which edges abutt against the bars of the side members, thus providing rigidity of the entire frame.

Abstract: A motorized two-wheeled vehicle comprising a frame having front and rear wheels and a vertical V-type engine mounted on the frame in a central region between the wheels. The engine comprises at least one pair of left and right cylinders arranged in the form of V and a pair of left and right carburetors are mounted rearwardly of the cylinders and are connected to the respective cylinders by intake pipes. A cylinder head of each cylinder is secured to a cylinder block such that the head is angulated to assume an angular position in which the axis of the cross-flow pattern is inclined inwardly and towards the rear with respect to the longitudinal axis of the engine to form an angle therewith.