Abstract: Process for the pre-treatment of non-ferrous metals or alloys serving as foundation parts for dentures and the like to be covered electrophoretically with ceramic material, which comprises plating the foundation parts with zinc by electrolysis before carrying out the ceramic layer formation, the zinc plating being of a thickness to allow the entire metallic zinc to become oxidized by the oxygen generated by electrolysis occurring simultaneously with the electrophoretic layer formation of ceramic material, the zinc oxide forming a bridge to secure the ceramic cover layers to adhere to the non-ferrous metal parts.

Abstract: Apparatus for machining workpieces by abrasion by means of an oscillating ltiple-blade tool, which is moved across the workpiece. The moved masses define an oscillatory system, as a result of which the energy can be stored in the reversal ranges by a buffer system. This apparatus, especially when designed as a lap-cutting machine for cutting semiconductor rods, is preferably driven by the oscillation of the masses to be moved, and is driven in the resonance range. The tool carriages are buffer loaded at each end and are oscillated at or near the natural resonance frequency of the moving masses.

Abstract: Process for the anilidization of carboxylic acid esters of the general formula R.sub.1 COOR.sub.2, wherein R.sub.1 is a cycloaliphatic or substituted cycloaliphatic radical with 3-8 C-atoms, preferably 5-6 C-atoms, an aromatic or substituted aromatic radical, preferably a heterocyclic or substituted heterocyclic radical, more particularly an oxygen-containing heterocyclic radical, with 4-5 C-atoms, and R.sub.2 is a hydrocarbon radical with up to 4 C-atoms, preferably 1-2 C-atoms, wherein such esters are reacted in the presence of aniline with equimolar amounts of magnesium dianilide and/or aluminum trianilide in the fluid phase. The products obtained are used as intermediates or directly as pesticides.

Abstract: A container for picking up, enclosing, transporting and disposing materials is provided. Such principal material is pet waste. The container is of tray shape comprising two hinged integral face panels disposed in a coextensive planar position in the open condition and in an angular position in the closed condition. In the open position the two hinged panels form a tray surrounded by side and edge panels. The side panels are interrupted at the hinge by triangular webs with the apex of each web at the intersection of the hinge and the side panel. The container is actuated from its stable open traylike condition through a metastable condition to a stable closed triangular clamshell-like configuration. The transition from the open to closed condition is powered by the energy of the folding webs inverting their relative position with respect to their integral sides. The box is formed of resilient sheet materials such as cardboard, polymeric resins and the like, preferably of a biodegradable nature.

Abstract: A dental board game apparatus is provided which includes a board having a playing field, defined by an array of contiguous playing spaces, having a generally arched-shaped upper and lower periphery, the upper periphery of which is bounded by two first sets of eight playing spaces which collectively define the upper left and right quadrants, respectively, of the upper ridge of the mouth and individually define the respective location of an upper tooth of the mouth, and the lower periphery of which is bounded by two second sets of eight playing spaces which collectively define the lower left and right quadrants, respectively, of the lower ridge of the mouth and individually define the respective location of a lower tooth of the mouth.

Abstract: A portable camera is described by which electrostatic photocopies can be obtained instead of conventional photographs. The camera includes conventional aperture and optical focusing means for producing an image, a surface on which the image is formed, electrode means for electrically charging the surface, an integral EHT generator for producing a high voltage pulse for application to the electrode, a shutter for controlling the passage of light to the surface and a means for applying a printing medium to the surface for retention thereon in dependence on the level of electrical charge remaining at different points over the surface after exposure to the light image.Rollers and a reservoir of a suspension of printing medium particles serve to apply the printing medium to the surface and heated rollers or pressure rollers are used to fix the print.

Abstract: A device is provided for drying wide textile webs, and the like, by means of a circulating, heated, gas-like treatment medium which is blown laterally across the web of material by means of jet nozzle elements having upper and lower fingers which are symmetrically arranged with respect to the web of material and extend over the total width of the textile web. The fingers of each nozzle element are provided with one common inlet opening for charging the treatment medium, and the openings for the jet nozzles are alternatively positioned on one side, and on the other side of the web, so as to ensure an even distribution of the treatment medium over the total face of the textile web, after which, the treatment medium flows off the side of the web opposite the common inlet opening.

Abstract: A probe assembly is provided which includes a housing, at least one sensing element extending through a passageway in a wall of the housing and a sealing packing element mounted in the passageway for effecting a pressure-tight seal between the sensing element and passageway. The housing has a generally pipe-shaped neck portion, one end of which has disposed thereacross the housing wall through which the passageway extends, and the sensing element is at least partially disposed in the neck portion in a direction generally parallel to the longitudinal axis of the neck portion. The neck portion is filled with a heat-resistant, porous filler material, which prevents damage to the sealing packing element.

Abstract: A filter press includes a plurality of filter plates disposed in a row, each having an arm extending laterally outward from the opposite, lateral sides thereof, which are slidably supported on a pair of spaced-apart, parallel tracks, the latter of which are each associated with a synchronously-controlled, reversible chain drive. Each of the plates has a pivot lever mounted on each of the arms thereof, which is movable between a locking position, in which it couples the plate to the preceding plate and, a release position, in which it disengages the plate from the preceding plate. A plurality of cam assemblies are carried on the chain drives, which successively permit individual release of one of the plates from the preceding and succeeding plates, while the remaining succeeding plates remain locked together.

Abstract: A flap valve is provided which includes a valve housing having a valve seat defined therein, on one side of which is a flow inlet chamber and on the other side of which is a flow discharge chamber, at least one locking element pivotably mounted in the valve housing for movement between an open and closed position relative to the valve seat, and at least one locking spring mounted in the flow inlet chamber of the housing having one portion which is rigidly held in the valve housing and a pivotable lever arm which engages the locking element to urge the locking member into the closed position. The lever arm of the spring and the locking member are slideably coupled together so that the force required to open the locking member increases only slightly or preferably decreases during the opening pivotable movement of the locking member.

Abstract: A lawn combine is provided which has a frame including a plurality of rotatable wheels supporting and coupled to the frame and a drive-actuated rotatable aerator movably mounted on the frame for movement between a lower operative position, in which it is disposed for engagement with a lawn surface and an upper raised, inoperative position, in which it is disposed for non-engagement with the lawn surface. Drive-actuated feeding devices are mounted on the frame for feeding materials in prescribed dosages to the lawn surface in an area generally beneath the frame and a drive assembly is mounted on the frame for propelling at least one of the wheels of the frame and for actuating the aerator and the feeding devices.

Abstract: An improved probe assembly for monitoring liquids is provided which includes an electrode housing having an internal receiving chamber, sealing packing means disposed in the chamber and a generally cylindrical electrode enclosed within a flexible, tube-like insulation sheath, which electrode and sheath extend through the receiving chamber and the sealing packing means. The electrode has at least one circumferentially-extending, radially-offset surface disposed opposite the sealing packing means defining an edge against which the sheath is compressed by the packing means so as to effect sealing engagement between the electrode and the sheath.

Abstract: A word processing system for displaying and reproducing alphanumeric characters on a photocopy machine capable of scanning an original document, having a housing including an electronic keyboard with keys representing individual alphanumeric characters, the housing including a display for viewing a portion of the information keys, and a memory circuit coupled to said keyboard for storing and spacing the alphanumeric indicia in memory.

Abstract: A strip of nails or other fastening elements for use in a suitable driving machine is made by resistance-welding together a number of fastening elements. For example, the heads of adjacent nails may overlap and be resistance-welded together through protuberances on the undersides of the heads.

Abstract: A piston pump for the transport of viscous materials and, in particular, concrete, includes a housing having defined therein an annular-shaped working space, a piston slidably mounted within the annular-shaped working space for oscillatory movement, and a pressure conduit and a suction conduit, each of which is communicative with the working space. The pump also includes control means having a member which is disposed in the annular-shaped working space for connecting the portion of the working space, which lies in front of the moving piston, to the pressure conduit and for simultaneously connecting the portion of the working space which lies back of the moving piston, to the suction conduit. In addition, the pump includes means for reversibly driving the piston so that it moves in an oscillatory manner in the annular working space, reversing its direction when it nears the member of the control means.

Abstract: The invention relates to the preparation of a material more favorably pri that the usual quartz crucible for use in the crucible-pulling of silicon according to Czochralski. To prevent reaction of the crucible wall with molten silicon, the surface of the shaped carbon body is coated by means of chemical vapor deposition first with a carbon-enriched silicon carbide layer and then with a carbon-enriched silicon nitride layer. The carbon-enriched silicon carbide layer is obtained by reacting a gaseous silicon compound with a gaseous carbon compound at a temperature of the shaped carbon body to be coated at 1250.degree. to 1350.degree. C. while the carbon-enriched silicon nitride layer is obtained by reacting a gaseous organosilicon compound with ammonia at a temperature of the shaped carbon body of 1000.degree. to 1200.degree. C.

Abstract: An automatic profile-copying device to be used in conjunction with machine tools of the type wherein a profile carrying the workpieces is caused to advance by being drawn between a pair of rollers between which it is clamped. One of the rollers is coaxial with the working tool of the machine and is driven by a motor operated at an adjustable but constant speed, while the other roller is thrust against the first roller in a substantially elastic manner and is rotated at a variable speed.

Abstract: A portable glazier point driver having a hand grip body with a rear leg portion and a front leg portion and a pivotable handle mounted to the body and coupled to a spring loaded plunger for moving the plunger back and forth across a magazine barrel for dispensing glazier points. The front leg portion includes a cylindrical bore for receiving a variety of cylindrical barrel magazines so that glazier points of different shapes and sizes can be accommodated in the driver. The barrel-shaped magazine which fits into the cylindrical bore includes a longitudinal slot so that the slot can be aligned to a set screw in the front leg portion and the barrel can be locked into place. The set screw is necessary and the lineup is important so that the centerline is matched with each cylinder.

Abstract: 1-(3-Pyridyl)-2,2,2-trihaloethyl compounds of the general formula I ##STR1## in which n is 0 or 1, R represents oxygen, hydrogen or an organic radical having at the most 12 C-atoms, m is 0 when R is oxygen, m is 1/2 or 1 when R is hydrogen or an aliphatic or aralkyl radical, and X represents a negative ion, R' represents a radical of the general formula II ##STR2## wherein V, Y, Z represent chlorine or bromine and may be identical or different, but are preferably identical; A represents hydrogen or a radical of the general formula III ##STR3## wherein B' is oxygen or sulphur, and B stands for an organic radical having up to 12 C atoms, or for an amino group of the general formula IV ##STR4## wherein F and D are identical or different, and represent hydrogen or organic radicals having at most 12 C-atoms; A may further be a sulphonyl group of the general formula --SO.sub.2 --B, in which B has the same meaning as in formula III.

Abstract: An annular-shaped buoyancy element for transport hoses which are used on water includes two generally semicircular-shaped buoyancy members, each of which includes a core made of foam plastic material completely encased in a sheath made of polymer material. Each of the semicircular members having coupling means mounted on each of the end faces thereof for coupling the members together. The members also have in a relaxed condition thereof, a radially extending V-shaped groove formed in its interior face, adjacent to the center thereof.