Abstract: Method and apparatus for sampling the gaseous medium of a zone or area to determine the concentration, or changes in concentration, of submicron particles suspended in the gaseous medium of that area or zone using an elongated cloud chamber. A light source and a phototransistor are disposed in the cloud chamber and spaced apart so as to be electronically responsive to varying levels of light. A microprocessor is connected to a programmable memory EPROM and has pre-programmed data instructions on particle concentration levels. The EPROM sequences the microprocessor to operate the valves that sequentially sample the gaseous medium in the cloud chamber, and opens the exhaust valve in the cloud chamber to create a condition of reduced gas pressure therein. The sample of gaseous medium containing submicron particles then precipitates or condenses a portion of the cloud in the chamber in proportion to the concentration of the particles.

Abstract: A carrying handle for a carton for packaging a plurality of cans and having interconnected top, bottom and side walls, and end closure panels, includes a transverse slit extending completely across one of the interconnected carton walls. The transverse slit has end projections extending into the two walls interconnected with the one of the carton walls. A transverse fold line extends completely across the one of the interconnected carton walls and is spaced from and disposed generally parallel to the transverse slit. The fold line had end projections extending into the two walls interconnected with the one of the carton walls which terminate adjacent to the corresponding end projection of the transverse slit. As a result, the transverse fold line and the transverse slit cooperatively define therebetween a foldable transverse handle flap struck from the one of the interconnected carton walls and the two walls interconnected therewith, foldably joined thereto via the fold line.

Abstract: A needle assembly for use in withdrawing bodily fluids has a body and a hollow needle extending through the body along a centrally located axis therethrough. The needle has a first end extending outwardly along the axis from a first side of the body and a second end extending from a second side of the body opposite the first side. The two cover elements are pivotally connected to the body for rotation toward and away each other in a plane containing the needle about two pivot points thereon. The cover elements have free ends extending outwardly from the body. Each cover element has a longitudinal extending interior cavity with an open side. This cavity extends beyond the tip of the first end of the needle so that when the two cover elements are rotated towards one another into a closed position, the needle is entirely surrounded by an enlarged cavity. When the needle is to be exposed, the cover elements are rotated away from one another into an open position exposing the tip of the needle.

Abstract: A pneumatically operated gas-pressure controller is provided having a setting device and a controller, wherein the controlling gas for the energy supply of the controller is drawn on the input side of the gas-pressure controller, fed to the controller by means of a throttle valve and discharged on the outlet side by means of a drain conduit. The controller supplies the setting pressure for the setting device by means of a setting pressure conduit and includes a twin diaphragm system having two diaphragms with different surface areas, the diaphragms are interconnected and arranged one above the other so as to oppose one another. A booster valve is associated with the diaphragm having the smaller surface area and is acted upon by the setting pressure.

Abstract: A method and apparatus is provided to effect the contactless testing of the surface and inner structure of a solid workpiece, wherein a single pulse of an electromagnetic exciting beam, preferably of a focused beam, is projected against the workpiece and the effect of the locally and temporarily induced workpiece temperature, measured as generated infra-red radiation, is processed, providing information concerning the surface and inner structure of the workpiece. The single pulsee of the laser beam is broken up into a multiplicity of component beams whose images, simultaneously projected upon the workpiece, are combined in a field or line by means of which the workpiece is analyzed.

Abstract: There is provided a fluorescent lamp having a fluorescent tube and a connecting element for connection to a source of current. The connecting element includes a mains plug having contact plugs electrically connected to the fluorescent tube and projecting on one side of the mains plug. The area of the connecting element facing the contact plugs is in the shape of a housing for the fluorescent tube having an oblong shape with the mains plug located on the longitudinal side thereof.

Abstract: Safety helmet for motor-cyclists and the like, provided at the top of its cap with at least one air intake, above which an aerodynamic, shaped guide fin is installed, which determines a suction of air from the interior of the helmet, between said aerodynamic guide fin and the external surface of the cap an adjustable slider element being provided, which is suitably shaped and positioned, and acts both as a baffle plate, and as a shutter for controlling the air flow.

Abstract: A grinding tool body of a vibratory grinding or sanding tool has suction inlets at least in recessed areas of its working surface for sucking away the grinding dust by means of an external suction system connectable with the grinding tool body. The grinding element is in the form of a sheet of grinding linen or grinding paper coated on one side with grinding material and having a second side covering the working surface. The sheet serving as the grinding or sanding element has perforated areas coinciding with the recessed areas in the working surface. The grinding element is held in place on the working surface solely by the suction force produced by the suction system. This allows for the simple and quick replacement of worn grinding elements. The grinding material-free back or second surface of the grinding element is roughened. Preferably, for the purpose of producing such a roughening, at least two edges of the sheet are folded over, such edges being disposed opposite one another.

Abstract: A casting mold for the production of muffles which serve for the conversion of wax models to metal, with the casting mold having a funnel shaper (1) which consists of a disk-shaped base plate (4), at the circumference of which a side wall (5) which stands vertical to the base plate (4) runs, and a cone (6) arranged in the center of the base plate (4), pipe-shaped, muffle ring (2) partially inserted into the funnel shaper (1), with the outside wall of the muffle ring (2) resting against the inside circumference of the side wall (1) of the funnel shaper (1), a cylindrical ring (7) which is inserted on the side of the muffle ring (2) which faces the funnel shaper (1) and the central opening (8) of which surrounds the cone (6), and a blind funnel (3) provided on the side of the muffle ring (2) opposite the funnel shaper (3), whose funnel tip faces towards the cone (6 ) of the funnel shaper (1).

Abstract: The present invention relates to a drainage guide assembly for directing the flow of water that gets into the outside part of the door of an automobile around the auto glass window. The guide comprises a sloping channel gutter affixed to the outside of the window and positioned below the belt line sill of the window. The gutter is an elastomeric material extruded onto the glass window.

Abstract: A device for adjusting a vertebral column with damaged vertebrae comprises an adjustable arm on a guiding axis and a stationary arm attached to the guiding axis, each arm having a hollow receiving body adjustable in two planes for a lengthening rod, which can be connected with a tire-fond. Each arm (2, 4) has an intermediate jointed piece (5, 5a) with an intermediate jointed piece (5, 5a) with two joints (6, 7), each intermediate jointed piece (5, 5a) being connected in a hinged manner to a support (8) for the hollow receiving body which is designed as an attachable cylindrical piece (15) with a tangential drilled hole (16).

Abstract: A driving or working engine, in particular an internal combustion engine, having at least one cylinder and a piston which moves axially in the latter and is connected to the crankshaft by an upper section of the connecting rod and a lower section of the connecting rod connected to the said upper section by a hinge. The two sections of the connecting rod are supported on an adjustable axle integral with the engine housing by a common hinged pivoting lever. In order to increase output and permit adaptation to different fuels, the end of the upper section of the connecting rod (5, 30) facing the piston (2) has an axial prolengation (27) which passes through the common hinge (9, 33) of the two sections of the connecting rod (5, 10 and 30, 35), and the end (14", 36, 36') of the pivoting lever (14, 39) facing the two said sections of the connecting rod (5, 10 and 30, 35) engages in an articulated manner with the prologation (27).

Abstract: A thermally controlled valve is provided having a valve seat, a closure valve cooperating with the valve seat, a diaphragm capsule, a plate spring, and an abutment supporting the plate spring along its outer edge. The diaphragm capsule includes a rigid wall part and a diaphragm component actuating the closure valve, the wall part and the diaphragm component being joined with each other along their outer edges and forming a reservoir therebetween for an evaporation medium. The plate spring rests against the face side of the diaphragm component which is averted from the wall part of the diaphragm capsule, and the inner edge of the plate spring engages the closure valve so as to act thereon in the opening direction.

Abstract: A tap dance platform for producing pitched sounds in response to energy imparted onto the surface of the platform having a flat base surface and parallel spaced-apart supports disposed on the flat base. Disposed on each of the spaced-apart supports are a plurality of flat spaced-apart keys which define a sound chamber between the base and the bottom of the keys. The supports are spaced-apart to engage the keys at their vibrational nodes. On the top surface of each of the spaced-apart supports are resilient strips to insulate the keys from the supports and the base to enhance the tonal sound. There are also provided side apertures in both the vertical supports and the side walls of the platform, to allow the sound to come out and to determine the desired sound quality. The ends of the platform are also recesses so that sound can travel out of each end of the platform. Thus, tap dancers can dance on the keys and create unique pitched, percussionlike sounds resembling a marimba.

Abstract: There is provided a game toy in the form of a flying disk with a handling device for retrieving the flying disk. The flying disk consists of a standard sized and shaped flying disk having a smaller disk-shaped element axially attached to and spaced from the convex side of the flying disk by means of a spacer. The handling device consists of an elongated sword-like element having a handle portion and a flat blade portion which is adapted to engage the flying disk in the groove defined between the flying disk and the disk-shaped element so that the disk-shaped element rolls or rides on the blade portion of the handling device in the nature of a grooved wheel on a track. The handling device is used in retrieving the flying disk, so that the flat blade portion of the handling device is inserted into the groove between the two disks while the flying disk is in flight and caused the same to stop.

Abstract: Silicon wafers and a process for the production thereof which produces was having intrinsic gettering action and on which thin oxide layers with high breakdown strength can be produced. During the production, the wafers are subjected to a treatment which smooths the wafer surface, for example, by repolishing, after the intrinsic getters have been produced in the interior of the wafer. Oxide layers subsequently deposited are outstanding for an increased breakdown strength compared with untreated wafers.

Abstract: A one-piece flexible plastic coupling for connecting a first conduit with a pipe of a second conduit has a central portion in the form of a bellows. The coupling has an end in the form of a cylindrical socket for receiving, an end of the pipe of the second conduit. The cylindrical socket has an inner surface with a diameter greater than an outer diameter of the pipe of the second conduit and an outer surface having a diameter defining a socket wall of predetermined thickness. The socket includes at least one protrusion extending inwardly from the inner surface of the cylindrical socket and extending around the entire circumference thereof.

Abstract: A drinking vessel which contains a pipe integrally formed within its surface to serve as a drinking straw. The vessel may include a downwardly sloping ramp on the floor of the vessel, the ramp downwardly sloping toward the end of the pipe to allow the liquid contents to be directed toward the bottom of the pipe. The pipe extends upwardly above the entrance opening of the vessel and serves as a drinking straw.

Abstract: The apparatus for harvesting crops, particularly seed crops, comprises a mobile support structure (20) and a crop stripping device in the form of a rotor (30), which may be attached to height adjustable arms and is driven by drive means (22). The rotor (30) carries transverse rows of crop stripping elements (1) which may be combined with transverse ribs. The crop stripping elements have prominent leading edges, for example each formed at the junction between two faces which are acutely inclined with respect to each other. The drive to the rotor is so arranged that during forward movement of the apparatus the crop engaging elements (32) are propelled progressively through the crop, moving upwards at the front region. Seeds and other plant parts detached by the action of the rotor are impelled into a crop flow passage (27) under a crop guide cover (21). A transverse auger (83) transfers the detached material into a duct (84) where an elevator (85) moves it over a screen (86) for separation of the seeds.

Abstract: An automotive window assembly of the type having a stationary window assembly insertable onto a peripheral flange of a rabbet flanged window aperture which is formed in an automotive vehicle body. The window assembly is designed to be adhesively secured to the automobile body after being mounted on the peripheral flange. The window assembly includes a plurality of cup-shaped retention elements which have inner sides fixedly secured to the inner pierpheral surface of the window assembly. Each retention element has a resilient outer side, and a generally perpendicular, outwardly extending stem joined at one end thereof to the resilient outer side of each of the plurality of retention elements. The stem is inwardly deflectable about the joint formed at the one end thereof and the resilient outer side of the cup-shaped retention element.