Abstract: An implantable arterial catheter, especially a multidose catheter, comprises a multidose injection receptacle that includes a shell which bounds a chamber having an open end and has a fastening flange. A pierceable diaphragm spans the open end of the chamber to sealingly separate the chamber from the exterior of the shell. An elongated catheter tube has one end connected to the multidose injection receptacle and communicating with its chamber, and another end portion remote from the multidose injection receptacle. A safety valve is secured to the other end portion of the catheter tube and includes a conical tip component disposed at the other end portion of the catheter tube and having a flow orifice at the apex thereof, and a protective cap component surrounding the conical tip component and the other end portion of the catheter tube, secured to the catheter tube, and having a free end provided with an additional flow orifice.

Abstract: A probe assembly for testing at least partially conductive elements has a dielectric base plate, a plurality of conductive supports on the base plate generally insulated from each other thereby, and each having a forwardly open socket having a forwardly concave socket surface, and a plurality of conductive contact rods, each having a substantially part-spherical rear ball end having an outer surface, and resting in a respective one of the sockets, and a forwardly directed front test end. According to the invention one of the surfaces is formed with at least one edge engaging only in line contact with the other surface. Thus, when the tips are engaged with conductive regions of an element to be tested, electrical connection can be made at the region of line contact between the contact rod and support.

Abstract: An electrical double plug and socket connector includes a socket component, a plug component and a short-circuit bridge. Each of the socket and plug components includes an insulating material housing. Metallic contacts are arranged in the socket component housing, and associated metallic connecting elements are arranged in the plug component housing. The plug component housing bounds a receiving space located between the connecting elements. The short-circuit bridge includes a U-shaped spring accommodated in the receiving space but having two arms which project axially out of the receiving space toward associated insulating material lugs of the socket component housing to such an extent that the connecting elements project beyond the arms by more than the distance by which the lugs extend beyond the contacts.

Abstract: A device adapted to accomodate at least one wheel of a vehicle, particularly for use and installation in car-carriers, which includes an elongated side rail constituting a vehicle loading level, and a carrying trolley slidably arranged on the elongated side rail. The carrying trolley has pivotally mounted thereon a pair of elongated sustaining arms, which normally extend at a slight convergence to, but nearly parallel with one another in an operative position thereof, and are spaced from one another by a predetermined distance, but are pivotably foldable through respective angles of about 90.degree., so as to extend in parallel with the side rail.

Abstract: A wetness indicating hot-melt adhesive which changes color quickly in response to the presence of moisture is disclosed which contains 20 to 70 wt. % of polymer, 35 to 100 wt. % of which is water sensitive polymer; 27 to 60 wt. % of organic acid which is selected from a high acid number fatty acid or a combination of a high acid number fatty acid and other high acid number organic acids; 0 to 30 wt. % of water soluble wax and a wetness indicating agent which changes the color of the composition rapidly in response to moisture therein.

Abstract: Process for producing airtight sealing of buildings, characterized in that it consists in causing to adhere fully on the zone to be treated a manfactured sheet of constant thickness comprising a reinforcement of organc fibres covered in a mass of bituminous binder, so as to produce a continuous dressing, whatever the nature and the shape of the substrate.

Abstract: An attachment is provided which can be retrofitted to conventional smoke alarms to make it possible to deactivate the smoke alarm in order to avoid operation of the alarm as a result of intentionally produced smoke which does not represent the threat of fire. The attachment provides a signal that the smoke alarm has been deactivated, the signal serving to remind occupants that the alarm is deactivated. Particularly advantageous embodiments make it simple and easy to replace the battery of the smoke alarm.

Abstract: An arrangement for influencing the keeping of a driving direction by a motor vehicle, which has at least one non-driven wheel support body which is mounted on a wheel suspension for rotation about an axis, in such a manner as to be able to conduct driver education and/or motor vehicle testing while operating in a border region between stable and unstable driving behavior at relatively low speeds comprises a holding component which is rigidly connected to the wheel support body, and a caster wheel which is mounted on the holding component for rotation about its rotational axis and also for turning about an additional axis which is substantially normal to the axis of the wheel support body and to the rotational axis of the wheel. A connecting device prevents the rotation of the wheel support body about its axis and is connected to a non-rotatable part of the wheel suspension.

Abstract: A self-closing valve fitting comprises a housing which bounds an internal space and includes a water inlet and a water outlet communicating with the internal space and a valve seat situated between the water inlet and the water outlet. A valve piston is received in the internal space for movement toward and away from the valve seat and for attendant cooperation with the valve seat. The valve piston delimits in the internal space, at a side thereof which faces away from the valve seat, a relief chamber. An actuation valve is arranged in the valve piston between the relief chamber and the water outlet and forms a part of an arrangement for self-retention of the fitting during a delayed opening movement of the valve piston. A deaeration member is arranged in the relief chamber and forms at a region of a jacket wall of the housing which circumferentially bounds the relief chamber at least one small flow-through passage which leads to the actuation valve.

Abstract: A wheelchair has two foldable side frames, link members which cross one another and are pivotable about a common horizontal axis so as to fold the side frames, front wheels and rear wheels connected with the side frames, a back rest with upwardly extending back supporting members, a seat with seat supporting members which are movable upwardly and downwardly in dependence upon a folding movement, and a foot support with foot support carrying arms, wherein each side frame is provided with guide receivers for the seat supporting members, and with supports for the link members, and wherein a rear wheel axle block and the front support carrying arms are formed as a one-piece element of synthetic plastic material. Such side frames have a lower weight, but are stable nevertheless, and also result in an improved handling of the wheelchair.

Abstract: A folding chair includes two pairs of front and rear legs which are arranged at opposite sides of a seat and support the same in a substantially horizontal orientation in a position of use of the folding chair. A backrest is pivotally connected to the rear portion of the seat for movement between a plurality of inclined positions. Two armrests are hingedly connected to the backrest and extend frontwardly therefrom. The front and rear legs of each pair assume a configuration of an inverted V, and are connected to one another at their upper ends by a hinge which includes two insertable members articulated to one another, each having an insertion portion fittingly received in a hollow end portion of the respective leg. Each insertion portion has two resilient tongues at opposite sides thereof, which carry respective protuberances that are received in corresponding openings of the legs.

Abstract: A manual device for cleaning clogged drains has a manual pump and an electric suction cup, which is mounted on the pump, and communicates with an outlet of the pump. A piston rod with a piston and controllable seals are arranged on the manual pump and together form a valve. During repeated reciprocal displacement of the piston rod, the pump may be selectively operated in a suction mode, withdrawing particles from the drain by aspiration, or in a pressure mode, blasting particles through the drain, depending on the valve adjustment. The device therefore achieves an effective cleansing of drains from clogged particles, while providing convenient handling for a user.

Abstract: A scale of the platform type includes a base frame, a lever mechanism for force-transmission connected to the base frame, and including a plurality of two-armed levers, a weighing platform supported by the two-armed levers, a measurement transducer disposed within the base frame and adapted for generating signals substantially proportional to a weight placed on the weighing platform, and a movable load-carrying frame surrounding the base frame, and wherein each two-armed lever is pivoted on the base frame. This concept permits attainment of scales of very low height, hardly sensitive to corner loads, namely loads offset from the center of the scale, and which have a high degree of resolution. The scale may be used for precision weighing, and may have a load region e.g. within a range from about 10 kg to about 100 kg.

Abstract: A vacuum lifting arrangement for flat workpieces, such as lumber boards, lumber planks and the like includes a vertically and horizontally displaceable housing which forms a vacuum chamber, and an elastic sealing element arranged at the underside of the housing for conformingly contacting the workpiece and constituted either by a foamed material mat with suction apertures or by individual suction cups. The vacuum chamber is constructed as a vacuum accumulator and a valve plate is interposed between the housing and the sealing element. The interior of the valve plate is subdivided into a plurality of individual vacuum compartments each equipped with a valve and is connected with the vacuum chamber by a suction opening which can be selectively opened and closed. Each of the vacuum accumulator and the valve plate is provided with its own admission opening which communicates with the ambient atmosphere, such openings being openable and closable in unison.

Abstract: A shaping machine which is provided for the shaping of panty hose and other hosiery articles includes two substantially vertically extending elongated blades. A motor driven belt drive extends along each of the longitudinal lateral edges of the blades. Each of these belt drives includes at least one endless belt which has a run that projects beyond the blades in such a manner that the contour of this belt run delimits the contour of the blades at their longitudinal sides. The directions of movement of the belt drives are chosen in such a manner that the outer runs of the respective belts move upwardly in the pulling-on position of the blades and downwardly in the pulling-off positions of the blades. The front one of the blades additionally includes a holding arrangement for insert sheets, the holding arrangement being supplied with the insert sheets by a supply device which is arranged laterally next to the blades on the machine frame.

Abstract: A convertible sitting/reclining furniture article comprises a main frame and a seat element which is supported at a predetermined elevation above ground. A bed frame can be pulled out of and pushed into the main frame in a drawer-like manner and includes a front side, a rear side and two lateral sides. An extension element is mounted on the bed frame for displacement between a retracted position and an extended position in which the extension element is disposed at the predetermined elevation to form an extension of the seat element by a five-bar kinematic linkage at each of the lateral sides of the bed frame. Each of the kinematic linkages includes a steering lever pivotally mounted at a first region of the extension element and at a first portion of the bed frame, and two steering links more remote from the front side of the bed frame than the steering lever and adjacent to the steering lever.

Abstract: Portable self-contained injector for perfusions.Injector characterized by the association of a transparent fluidtight casing (1) and a neutral liquefied gas compression assembly (18), the said casing containing a flexible bag (2) containing liquid which is to be perfused and having a removable plate on its upper face and provided with a fluidtight connection with the flow line and safety elements.This invention is useful for manufacturers of portable medical equipment and in particular manufacturers of emergency treatment equipment.

Abstract: A one-piece implantation lens is provided as a replacement for a natural lens which has been surgically, particularly extracapsularly, removed from the eye of living beings of a higher order and which has, on the one hand, a central lens body designed as a collective lens and, on the other hand, holding means in the form of thin-walled, flat support elements arranged peripherally on the lens body, radially extending outwardly from the lens body and fixing it in place, with the outer edge of the support elements lying on a circular arc around the center of the lens body; and which consists of a homogenous, crystal-clear, high-temperature resistant plastic, preferably vulcanized silicone, with a specific gravity of between 1.01 and 1.08, preferably approximately 1.02, wherein at least one of the two surfaces of the central lens body is in the form of the optically effective surface of a Fresnel lens.

Abstract: Actuating mechanism for the cocking device of a self-loading hand gun which has an actuating element, wherein two co-acting elements for limiting rotational movement of the actuating element are provided to stop movement of the actuating element after a predetermined angle of rotation, wherein one co-acting element is connected in driving relationship with the actuating element, while the other co-acting element is secured against rotation, wherein the co-acting elements include a guide cam for coaction with forward and rear arms of a lever, and wherein the lever pivots about an axis movable along a circular path, wherein the guide cam includes a first portion forming a stop for the forward lever arm, as viewed in a predetermined sense of rotation, when the forward lever arm has moved past the predetermined angle of rotation, and a second portion spaced at a certain angular distance from the first portion along opposite rotation sense, wherein the second portion comes into contact with the rear lever arm so a

Abstract: A power-factor correction system for reactive power control and concomitant power factor correction adapted to cooperate with a line supplying power at a given line voltage from a power generator to an inductive load via a given path, includes a reactive power compensating device in shunt with the line supplying power, and is adapted to be connected in shunt with the inductive load.