Abstract: Support apparatus for a movable tool head drive for a machine tool comprising a stand on which is fixed, a table on which is slidably movable, a framework comprising an upper transverse member which supports a movable tool head. The framework is in the form of a closed vertical frame having spaced vertical posts and a lower transverse member mounted below the table, the vertical posts being joined by the upper and lower transverse members to provide the closed configuration of the frame.

Abstract: An electrographic process of producing, on a dielectric coated record medium, an electrostatic copy latent image by modulating a flow of corona ions with the aid of an electrostatic latent image which has been produced on a photoconductive photosensitive screen having a number of openings. The process is characterized by making a ratio K of a maximum surface potential V volts of the electrostatic copy latent image produced on the dielectric coated record medium to an intensity of the electric field E volts/mm established between the photoconductive photosensitive screen and the dielectric coated record medium, i.e. K=V/E smaller than about 0.18 for the purpose of preventing enlargement of dots of the copy picture image.

Abstract: A method of producing a nonconsumable electrode comprising forming a blind hole in the working end face of a high-melting core of the electrode, partially filling the blind hole with doping agents and then filling the remaining portion of the hole with a mixture of the doping agents and high-melting core material. The mixture is then heated from the surface of the electrode until a fused surface layer is formed and an enclosed space with doping agents is provided in the electrode.

Abstract: In a forging machine where the frictional work is reduced in the driving system at the main crankshaft and its support bearings, especially at the moment a forging force is applied. A rotary driven crankshaft is connected to a crank mechanism, which has a connecting rod connected to the driven crankshaft. The opposite end of the connecting rod is pivotally connected to an arm for driving the main crankshaft in an oscillatory rocking motion, which reciprocates the hammer means.

Abstract: A stereotaxic apparatus comprises a ring with head clamps and an arch-shaped plate adapted to carry a stereotaxic instrument and dovably joined to a bushing by means of a guide member attached to the bushing. The bushing is mounted on a bar so as to be movable along the bar and rotable thereabout, with the bar being disposed radially relative to the arch defining the shape of the plate, and being joined to the ring by means of a spatial hinge having two degrees of freedom and mounted on the ring so as to be movable therealong. The extremity of the stereotaxic instrument is positioned at a point being the projection of the curvature center of the arch defining the shape of the plate on the axis of the bar.

Abstract: A method for guiding a stereotaxic instrument at a target point in an intracerebral cavity comprising fixing detachable roentgenocontrast markers with respect to the patient's cranium, then effecting contrast roentgenography and determining the relative position of the markers and intracerebral reference points. Subsequently, the position of a target point with respect to the intracerebral reference points is determined and a physical model of the intracerebral cavity is constructed to include the points simulating the markers and a point simulating the target point. A stereotaxic apparatus is installed on the patient's head, the detachable roentgenocontrast markers are again fixed with respect to the patient's cranium, the position of the detachable markers with respect to the stereotaxic apparatus is identified and the positions of the detachable roentgenocontrast markers with respect to the stereotaxic apparatus are set-up in the model of the stereotaxic apparatus.

Abstract: A composition containing a photosensitive polymer which becomes insoluble by a light exposure and particularly to a highly photosensitive composition which comprises a photosensitive polymer having in the structure as photosensitive groups both an a,B-unsaturated ketone group having a cyano group at the a-position and an azide group.

Abstract: A laminated abrasive body which is in effect a thick compact comprising a plurality of diamond or cubic boron nitride compacts laminated together, joining of adjacent compacts taking place by means of a layer of a metal or metal alloy braze and the thickness of the laminate exceeding 5 mm and the longest dimension of the body transverse to the thickness exceeding 2 mm. The invention also covers methods of making such laminated bodies by forming alternate layers of braze and compact or compact-forming material and then forming the laminate under elevated temperature and pressure.

Abstract: A safety wheel with a rim having a tubeless tire mounted on the rim about its periphery. The rim is formed with flanges and an air chamber defined by the rim and the tubeless tire, has a bead stopper disposed within the said air chamber for gripping portions of the tubeless tire in cooperation with the flanges so to contain the bead portions against axial displacement relative to the rim. The bead stopper has a plurality of rigid circular bead stopper units flexibly connected in a radial direction to form an endless configuration with an inner peripheral surface fitted into a rim base on the rim. One of at least a pair of interconnected bead stopper units is formed at one end with a male connecting section having connecting pins, and anotjer end is formed with a female connecting section having hook-like locking concave portions. The locking concave portions and connecting pins of the female and male respectively being disengageably connected to each other.

Abstract: A welding transformer with drooping voltage-current characteristic comprising a split magnetic core wound from transformer plate, and separated primary and secondary windings. In the core window, a moving shunt of the magnetic flux is provided between the secondary and primary windings. Where the magnetic flux passes from the core into the magnetic flux shunt, the core is provided with spacing blocks made from transformer plate. Laminations of these spacing blocks are so arranged in relation to the core plate that the magnetic flux does not cross the plane of the core plates but flows towards the magnetic shunt.

Abstract: An adjustable coupling apparatus for first and second spaced superposed bels of a sporting gun in which the barrels are secured at the rear ends thereof, to a mounting at the stock of the gun, the barrels projecting freely forward therefrom. The barrels are supported at the front ends thereof by a double collar which is fixedly engaged to the upper barrel and is slidably engaged with the lower barrel and holds the barrels in transversely spaced relation while permitting relative axial movement therebetween. A coupling device engages the barrels at an intermediate location along the length thereof for transverse adjustment of the spacing therebetween. The coupling device includes a rotatable wheel which can be rotated in opposite directions to increase or decrease the transverse spacing between the barrels. A detachable and interchangeable sight band is disposed above the upper barrel and is secured at its rear end to the mounting.

Abstract: A blade of the fan wheel of a diagonal-flow fan, which blade should ideally have a shape of a twisted double-curvature or undevelopable surface, is formed from a portion of a cylinder, which has a single-curvature or developable surface. To realize the formation of a blade from the single-curvature surface, lines of intersection between a cylinder and a number of coaxial imaginary conical surfaces representing streamlines in the fan wheel are used as a basis for design.

Abstract: A vacuum type brake booster device including an input rod with an adjustable stop mechanism for enabling the input rod to have such a normal, full-retracted position as to hold the booster control valve in a neutral position to keep the second working chamber of the booster out of communication with the first working chamber thereof as well as with the atmosphere while holding the booster output rod in direct abutting engagement with the brake master cylinder piston. There is no delay in operation of the brake master cylinder when the brake pedal is depressed.

Abstract: The invention provides a process for producing beta-bromoethyl aromatic compounds comprising reacting hydrogen bromide with a vinyl aromatic compound in the presence of an azo radical initiator to effect the antimarkovnikoff addition of HBr to the vinyl double bond.

Abstract: A color photographic material having stabilized dye images is described which has a compound with the formula: ##STR1## where R and R.sub.2 individually represent an alkyl group, R represents an n-valent organic group and n is an integer of from 1 to 6.

Abstract: A nonconsumable electrode comprises a hollow cylindrical body, a hollow detachable tip made in the form of a body of revolution coaxial with the hollow cylindrical body, a solenoid for generating a magnetic field, and a partition. The tip is secured to one of the ends of the body and has lateral cylindrical non-arcing portion and a convex arcing end portion. The lower end of the solenoid is disposed in the tip cavity defined by the cylindrical non-arcing portion of the tip. The partition is coaxially mounted in the cavity of the body and of the tip so that between said partition and the walls of the body and of the tip there is formed a passageway for the flow of a coolant.

Abstract: A method for preparing N(1)-alkylated-5-phenyl-7-substituted deoxy-1,4-benzodiazepines utilizing a polyphosphoric acid alkyl ester of the formula: ##STR1## wherein R.sub.3 is an alkyl radical with up to 4 carbon atoms as the alkylating agent, is described.

Abstract: Polymerization or copolymerization of the starting monomers is carried out in a hydrocarbon medium in the presence of a catalyst containing an alkylaluminium chloride compound, a trialkylvanadate and an alkoxyderivative of titanium, or zirconium, or hafnium. The method of the present invention makes it possible to considerably increase the polymerization rate and degree of conversion in the preparation of polymers and copolymers of higher .alpha.-olefines. The resulting polymers of higher .alpha.-olefines have a stereoregular structure with a high degree of crystallinity which is manifested in an increased melting point of the resulting polymer.

Abstract: A long-distance truck or trailer cabin in which a bin is arranged above the windshield in an angular space between the roof and the front wall of the cabin. The bin is confined by a horizontal bottom and a rear end wall. The bin, furthermore, has a sliding curtain arranged at the front wall and the side walls to cover the side windows and the windshield. The curtain, moreover, is suspended in a continuous runner. A compartment is provided in a recess in the horizontal bottom at substantially the center of the cabin. The compartment has a downward-directed opening and a cover which is pivotally supported by horizontal hinges. The runner extends across the opening section of the compartment. The cover may be provided with a shape conforming to a bulging cylindrical shelf or cupped saucer. A curtain, furthermore, may part vertically at substantially the center of the cabin.

Abstract: A hydraulically-operated machine adapted to receive water at an upper level from a relatively large reservoir and to discharge the water to a lower level, which includes a piston head carried upon a piston rod mounted for vertical movement in guide bushes located above and below the piston head, inlet control valves for allowing water to flow from the upper level alternately to the upper and lower surfaces of the piston head, and outlet control valves for allowing water on the respective other side of the piston head to flow to the lower level.