Abstract: An improved drilling bit has a cone shaped cutter 22 rotatably mounted on a leg 16 by way of a central journal 18 and an annular journal 20. The annular journal is axially coextensive with the central journal. The cutter has outer collar 26 and inner collar 28 which interfit with the journals to provide a large surface area for roller bearings 30, 36 and 42. Additionally, the cutter may have a post 68 within cavity 70 on the terminal and of the central journal 18 so that roller bearings 74 can be provided to further increase the area of roller bearings handling radial loads. This increases the lifetime of the bit assembly. Ball bearings 50, 52, 66 and 72 are provided to handle axial loads, and ball bearings 54 are provided to retain the cutter on leg 16.

Abstract: A composite semirigid snow chain without rear hooking means, for motor vehicles, consisting of two parts to be independently applied onto a wheel and to be connected to one another at a sole side, that is at a sole side of the wheel, by means of an elastic device having a controllable clearance, each of said parts being provided with friction elements.

Abstract: An electrostatic copying apparatus including means for developing the latent image on the photosensitive member with toner particles which are supplied from a container having a slide plate that reciprocates along the bottom of one wall of the toner container. A detecting device is connected to a feed control system and a warning device to control tones dispensing and warm of imperfect feeding.

Abstract: A system for eviscerating poultry carcasses including a movable conveyor (10) having shackles (18) for suspending the carcasses by their hocks, means (12) for supporting the conveyor at an elevated height, means for moving the conveyor to move the carcasses along a processing line, means (27) below the conveyor for supporting the breasts of carcasses to be eviscerated, and a plurality of tools (28) mounted on a carousel (14) for eviscerating the carcasses by entering the body cavities of the carcasses from rear access openings, each tool including a shaft (42) and a loop member (44) mounted on the shaft the loop being vertically elongated and being formed of two symmetrical interconnected halves (46, 48) which lie on opposite sides of a central plane (47), each of the halves of the loop including an upper portion (50), an intermediate portion (52), a lower portion (53), and a bottom (54), each upper portion extending downwardly from the shaft in a direction which diverges from the central plane, each intermed

Abstract: An automatic hook lock which is electrically and manually operable and is particularly adapted for manual, motorized or remotely controlled sliding gates to which it is attached on the surface thereof or within the interior thereof. The lock consists of a rectangular metal box containing an electromagnetic solenoid with relative magnetic plate, a cylinder lock with a key, a hook and a system of five rocker levers actuated by a spring-compressed plunger. The lock is assembled in such a way that every time the solenoid receives an electrical impulse, the magnetic plate is moved to release the system of rocker levers. The combined action automatically provides the freeing and elevation of the hook. The inverse, blocking action occurs automatically with the closing of the gate. The mechanical, manual opening of the lock is achieved using a key.

Abstract: The fin of a fin rudder can, as desired, be locked to the rudder (single-area rudder), to the ship (forced control of fin through movement of main rudder), or separately pivotable (independent fin movement), the locking or actuating device being positioned within the hull (FIG. 1).

Abstract: Compounds of the general formula: ##STR1## in which X represents a hydrogen or halogen atom, for example fluorine or chlorine, and R represents an alkyl group having 1 to 3 carbon atoms or alkenyl group having 2 to 3 carbon atoms are disclosed together with methods for their preparation and their use in the treatment of migraines, as anti-thrombosis agents or as rapid acting thymoanaleptic medicaments.

Abstract: A surgical retractor system comprising an array of standardized, interchangeable, annular retractor frame sections of various shapes of which the end portions are configured to permit the interchangeable, hinged connection of the various shaped frames in forming generally annular retractor units adaptable to conform to fit the surface contours of various patients upon which a surgical operation is to be performed.

Abstract: The invention relates to a process for after-oxidation of carbon black powder with oxidants which are gaseous or are dispersed in the gas phase. A closed vertical cylinder is provided at its top with a carbon black input opening and a vent duct and at its bottom with feed ducts for oxidant or flushing air. A stirrer shaft runs along its central axis; stirrer arms are fitted to it at intervals over the height of the cylinder and offset with respect to each other, and sweep over the whole cylinder cross section in predominantly horizontal setting.

Abstract: A channel induction furnace, particularly for melting aluminum has a pair of U-shaped channels extending downwardly from the bath. The channels have a radial width, measured outwardly from the axis of the core, which is several times the penetration depth in the molten metal for a current of the energizing frequency and the channel section is tapered so that the channel is wider near the core and narrower away from the core. The planes containing the axes of the channels are skewed about an axis of skewing normal to the axis of the core.

Abstract: A process for removing extractables from carbon blacks in a fluidized bed, wherein low extractable carbon blacks are treated under relatively mild temperature conditions (320.degree. C.) with an oxygen containing gas and high extractable carbon blacks are treated first at 100.degree.-320.degree. C. with steam and then at 200.degree.-500.degree. C. with an oxygen containing gas. A definition of classification in the "low extractable" and "high extractable" categories is given.

Abstract: Compounds of the general formula: ##STR1## in which either X represents an atom of sulfur and Y represents the N-oxide group or X represents the sulfinyl group or the sulfonyl group and Y represents an atom of nitrogen or the N-oxide group and their salts of addition with mineral or organic acids, their process of preparation and their use as a medicament for the treatment of gastric and duodenal ulcers.

Abstract: A gas black burner is described which is used normally in connection with a rotating cooling roller as a deposition surface, so that its discharge openings for the operating gas containing the raw material for the carbon black are directed against the cooled deposition surface. The burner is characterized by the fact that it is formed as a pipe shaped chamber provided with at least one supply line and disposed in parallel relationship to the deposition surface, which chamber has slit shaped discharge openings in its jacket.The invention relates to a gas black burner with openings to be directed against a cooled deposition surface.

Abstract: Compounds, useful as medicaments, of the formula: ##STR1## in which R is hydrogen, alkyl, alkenyl or arylalkyl, R.sub.1 is hydrogen, alkyl or alkenyl, R.sub.2 is hydrogen, alkyl, arylalkyl, phenyl, pyridyl, thienyl or substituted phenyl, X is hydrogen, halogen, alkyl, alkoxy, alkylthio, trifluoromethyl, nitro, amino or amino substituted by one or two alkyl groups, and A represents a CO or CH.sub.2 group.

Abstract: Miniature flashlight consisting of a case (1) of moulded plastics material closed by a cover (2) that is at least partly metallic and containing a cell (18), an electric bulb (11-12) and a pressure spring (16), characterized in that the whole unit is flat in shape, comprising two facing walls formed respectively by the bottom wall (7) of the case and by at least a portion of the cover (2); in that the cell (18) consists of a flat cylindrical cell the casing of which is in contact with the center contact stud (19) of the bulb (12) and the opposite polarity contact (20) of which is oriented towards the cover (2); in that the bottom wall (7) of the case (1) comprises parts (9, 10) enabling the socket (11) of the bulb (12) to be housed and restrained; and in that at least one of the two facing walls (7 and 2) is flexible enough for compression of the unit between the fingers (25) to bring the socket (11) or the cell (18) contact (20) into contact with the conducting portion of the cover (2).

Abstract: A surgical retractor stay with a tissue holding hook affixed to the elastic hollow tubing member of the stay by a retaining member having a body in which the hook shank is embedded with the sharp end of the hook extending from one end of the body and a stud with a tapered knob on its outer end extending outwardly from the other end of the retaining member body, the size and configuration of the knob and stud being such as to be tightly retained within an end portion of the hollow tubing stretchingly installed thereover; and a surgical tube connector for joining a pair of hollow elastic surgical tube members having an elongated stud with tapered knobs at each end in which the stud and knobs are dimensioned for tight fitting containment within the end portions of the hollow tube members stretchingly installed thereover.

Abstract: Ground coal is dispersed in an aqueous electrolyte and is alternately oxidized anodically and reduced cathodically. The reaction gases and the liquid hydrocarbons obtained and other volatile organic compounds are processed and used in the customary manner. The reactive groups formed in the coal improve its cokeability, extractability and capacity for hydrogenation. In addition, the treated coal because of its good wettability, suspended in water or alcohol, is well suited as a liquid fuel or motor fuel.

Abstract: A mechanical device is described consisting essentially of an upper body and a flexible bell shaped member, immersed in liquid and equipped with disc valve, placed in a housing on the lower part of the bell shaped member, that is fitted in a rigid reinforcing ring. This bell shaped member compressed by the activating flange of the transferring pipe, whenever the actuating button is pressed, makes the liquid flow out through the pipe up to the pouring spout. When turning the outer cover of the upper body, the system is locked, sealing the pouring spout and may be unlocked when ready to use.