Abstract: A process for deposition of polycrystalline silicon from the gas phase on ated carrier bodies of carbon, which comprises assembling the carrier bodies from extremely thin flexible graphite foils, heating the bodies to deposition temperature, while contacting them with a gaseous mixture containing a decomposable silicon compound and, if desired, hydrogen, and separating the deposited silicon from the carrier body, after termination of the deposition process, by mechanical means. The polycrystalline silicon can either be deposited in the form of shaped hollow bodies for use as laboratory equipment or in the semiconductor industries, or it may be processed to monocrystalline materials.

Abstract: A device is provided for the continuous treatment of relatively wide textile webs in a treatment medium, wherein the web and the treatment medium move through a trough having squeezing rollers associated therewith for intensifying the treatment of the web with the treatment medium and wherein a funnel-shaped diffuser is disposed at the entrance end of the trough for introducing the web of material into the trough. The device includes squeezing means which are disposed adjacent to the diffuser means and which include a pair of coacting, rotatable squeeze rollers which define therebetween a squeezing nip disposed beneath the surface of the treatment medium and through which the web passes prior to introduction into the diffuser. Deflection means are also provided which are disposed adjacent to the discharge end of the nip of the rollers for facilitating removal of the web from engagement with the circumferential surface of the rollers and for guiding the web into the trough.

Abstract: Colored aluminum powder is prepared by immersing finely divided aluminum in a weak alkali solution maintained at a temperature of 50.degree. C. to the boiling point of the solution and having a pH of 8 to 12, said solution containing a salt of iron, nickel, cobalt, zinc or copper, and at least one aliphatic amine having a chelating ability for the metal salt, to form a composite film which consists of a hydrated aluminum oxide and a hydrated oxide of the metal, and separating the aluminum from the solution.

Abstract: An improved machine for continuous commercial packing of slaughtered fowl into bags of the type having a packing funnel, a piston which pushes the fowl through the packing funnel and a bag supply which is provided at the discharge opening of the packing funnel, is provided which includes a centering tool disposed in front of the entrance opening of the packing funnel. The centering tool includes means for enclosing the legs of the slaughtered fowl and pushing the legs into the path of the piston, which means is moveable in timed relationship with respect to the piston.

Abstract: In a circuit arrangement for providing a periodic saw-tooth current in a coil, e.g. a kinescope deflector coil, comprising a one-way conducting device that connects the coil to a voltage source, and a controllable switching device having a control electrode connectable to a periodic pilot-pulse source that makes the switching device conductive during part of the saw-tooth cycle, the switching device being connectable to a current source through an induction coil, the improvement wherein the latter is serially connected with the switching device, both being connected to the voltage source; and wherein a point common to the induction coil and to the switching device is connected through a capacitor to a transformer which latter is in turn connected to the one-way conducting device.

Abstract: Semi-conductor discs are cleaned, after being subjected to a polishing operation, by immersing the discs in a solution of about 30-100% by weight non-ionic or anionic surfactant and thereafter rinsing the discs with water.

Abstract: A ratchet device is provided for tensioning belts or ropes which are used to secure piece goods during transport by means of trucks, ships, airplanes, etc. The device includes a ratchet housing, a belt tensioning assembly supported in the housing and a manually actuated pivotable lever for actuating the belt tensioning device. The device permits easy and facile adjustment of the belt tension by repeated pivot movements of the lever.

Abstract: A device is provided for transporting hollow plastic blow moldings having at least one opening thereinto which device is particularly useful for removing hollow moldings from the cavities of blow molds. The device includes at least one gripper unit supported for axial movement toward and away from a blow mold, which unit has gripping means movable between a normal, retracted position and an expanded position. The gripping means are insertable within the opening of a hollow molding disposed in the mold cavity and are expanded to engage and grip the interior walls thereof. The device also includes means for adjusting the degree of expansion of the gripping means to ensure precise position control and to minimize damage to the hollow molding during gripping and transport.

Abstract: A loading and unloading station for the chemical and/or electro-chemical treatment of mass-produced parts contained in a rotatable drum, the rotatable drum having a cover which is displaceable in a direction parallel to its axis in a controlled, pre-determined, angular position by means of a pressure cylinder, to open or close a filling aperture.

Abstract: The invention provides a dual purpose container and dispenser especially adapted for comestible products encased in disposable waste material such as edible nuts and seeds having shells and wrapped candies. The dual purpose container and dispenser includes a housing adapted to contain the comestible products and a divider movable within the housing and adapted to divide the housing into two separate compartments. The housing is provided with at least two openings, the first of which openings is in communication with one compartment and is adapted for dispensing comestible products contained therein and the second of which openings is in communication with the other compartment and is adapted for the insertion of disposable waste material into the other compartment; the arrangement being such that upon the emptying of the compartment containing the comestible products, the other compartment is adapted to increase in volume as a result of the movement of the divider to accommodate additional waste material.

Abstract: A fertility indicator for measuring and detecting the body temperature of a human subject over a menstrual cycle having a timer for generating time based signals, and a logic circuit connected to the clock timer and being responsive to the time based signals for selecting the proper combinations of the time based signals and for indicating the correct present time. There is a temperature sensor coupled to the logic circuit for measuring the body temperature of the human subject. A solid state memory circuit having coded information command signals is coupled to the logic circuit for sequencing the logic circuit to take a plurality of temperature readings at a preset real time and to terminate the readings when the temperature has stabilized.

Abstract: An improved level assembly includes a generally rectangular level, an elongated generally rectangular blade, one end of which is pivotably secured to the level to permit movement thereof about an axis normal to the longitudinal axis of the level, a scale element having scale markings formed thereon for indicating angle degrees and a pointer element disposed for cooperative association with the scale element for indicating a specific degree of angle. Either the scale element or the pointer element is fixed to the level and the other element is coupled to the blade for pivotal movement therewith. The level assembly permits the user to accurately align workpieces at a predetermined angular orientation.

Abstract: A process of melting down and purifying silicon, which comprises melting silicon in at least half of the amount up to double of the amount of a silicate melt heated by resistance heating up to a temperature of at least 1,420.degree. C., said melt consisting of 2-30% by weight of calcium oxide, 5-35% by weight of magnesium oxide, wherein the sum of calcium oxide and magnesium oxide will be 15-38% by weight, 0.5-28% by weight of aluminum oxide and 45-70% by weight of silicon dioxide, and wherein, to the melt are added at least 0.29% by weight of elementary and/or chemically bound copper, preferably 0.50-3% by weight, calculated on the silicon amount.

Abstract: A process for the manufacture of highly dispersed silicon dioxide with improved thickening action by treatment of pyrogenically produced silicic acid comprising the following steps:A. preparing silicic acid by flame hydrolysis from silicon halides;B. separating the silicic acid from generated gases;C. reating the acid with 2 to 10 percent by weight of silicon tetrachloride calculated on silicic acid, while optionally/mechanically stirring;D. hydrolyzing the product by means of an air/water vapor mixture, and finally deacifying to obtain the silicon dioxide of improved thickening action.The invention also relates to the thickening agent, which is useful for a variety of purposes, among others as additive for preparations of dental hygiene.

Abstract: An apparatus for the continuous production of prefabricated insulating panels is provided, which includes a feeding station for a lower metal sheet and for an upper metal sheet, a rolling-mill train for shaping the sheets, a furnace for heating the sheets, a device for injecting expandable plastic material between the sheets, a joining unit for joining the sheets together and for holding the expanded plastic material in place, and a cutter for cutting the finished panels. The joining unit has two, link-type upper and lower conveyors for the sheets shaped by the rolling-mills, at least one of which is adjustable, so that the distance between them may be regulated according to the thickness of the panel, with the conveyors being arranged to revolve continuously around rollers which rotate about a horizontal axis. An article produced by the apparatus is also provided.The present invention relates to an apparatus for producing insulating panels and the panels produced thereon.

Abstract: A support element for pipe ditches is provided which consists of support plates which are pressed against the ditch walls in pairs by longitudinally adjustable spreading means, and are guided and retained in vertical supports. The foot of at least one support plate includes a closable opening for guiding a branch pipe or the like, therethrough. Most desirably, the support plates are composed of two plates, an inner and an outer plate which are detachably coupled together and which have the same outer dimensions as a single support plate. The outer plate is provided with an opening in the area of the lower end thereof and the inner plate is movable between an open and closed position relative to the opening of the outer plate.

Abstract: Cast resins strengthened with carbonic fibrous material are used as the material for making parts which transmit X-rays and at the same time are subject to mechanical stresses.

Abstract: An anti-nose-dive safety system, for a vehicle having a chassis and a pair of front and axle assemblies, includes a bumper assembly having a frame pivotably mounted on the chassis adjacent to the front end thereof, and a retractable bumper slidably mounted on the frame for movement between a normal, extended position and a retracted position, and a front end suspension assembly including an air piston arrestor pivotably coupled between each of the front end axle assemblies and the bumper assembly frame. Apparatus are coupled to the bumper assembly and chassis for raising the front end of the chassis in response to movement of the bumper from its normal position to its retracted position and apparatus are provided for arresting the air piston arrestors in a relatively rigid non-compressible state also in response to the retraction of the bumper. The safety system is especially suitable for compact cars.

Abstract: A portable and foldable wall partition is provided which includes a plurality of spaced-apart, slidable and heightwise adjustable upstanding vertical supports and a plurality of horizontally-extending lateral supports, each of which is pivotably supported at its ends between a pair of adjacent vertical supports to permit a width adjustment of the wall partition. A filler material is wound on the lateral supports and is unwound therefrom to serve as wall panels for the wall partition. The wall partition has an extremely light weight and high degree of stability. It easily accommodates a wide range of room dimensions while affording a highly effective seal with the floor, ceiling, and walls of the room in which it is installed.

Abstract: An auxiliary device for laying flexible wall and floor coverings includes an elongated angle plate having a supporting surface for the material to be cut to size and a pressure strip having a lower pressure surface of approximately the same length as the supporting surface and which has a cross-sectional profile which is configured to complement the profile of the supporting surface. The supporting surface has at one end a wedge-shaped end portion, the outer edge of which defines a supporting edge, and a cutting edge defined at its opposite end, which edges lie in a base plane. The angle plate also includes a part having a locating edge disposed parallel to the cutting edge. The angle plate in cross-sections lies substantially within an imaginary triangle, with its cutting edge, supporting edge and locating edge passing through one corner of the triangle.