Abstract: A transdermal injection appliance has a pad impregnated with a disinfectant solution such as alcohol, a body with adhesive for holding the pad against the skin of a patient, and a sleeve with a guide passage through the body for guiding an injection needle. A membrane puncturable by the needle is attached to the sleeve to close the passage, the membrane being self-sealing so that an opening through the membrane formed by the needle is closed as soon as the needle is extracted, thereby wiping a majority of blood from the needle and preventing the escape of blood. The tubular sleeve can have an outer end with a coupling for connection to a retractable needle injection assembly. A method of using the appliance with the retractable needle assembly to administer medication without exposing the health care giver to accidental contact with the needle is also disclosed.

Abstract: A surgical instrument for creating a tissue canal in which to seat a sleeve has a shaft tube with a knife blade at its distal end to form an incision and an insert to transform the incision into the tissue canal. The knife blade is formed as an axially projecting portion of the distal edge of the shaft tube and has a ground edge for cutting in the circumferential direction of the shaft tube. The insert is slidable mounted in the shaft tube and has a distal blunt end located adjacent the distal end of the shaft tube.

Abstract: The invention relates to a marine-seismic streamer having a liquid-filled tube (4) in which there are arranged, in the longitudinal direction, hauling cables and flow-obstructing devices including shaped pieces (2) which are spaced apart in the longitudinal direction for dividing the streamer into sections, and hydrophones (5). The shaped pieces (2) are of cylindrical construction with an outside diameter smaller than the inside diameter of the tube (4) such that an annular gap (9) is formed between the tube (4) and each shaped piece (2). The shaped pieces (2) have at least one annular seal (10), the outer diameter of the annular seal (10) corresponding to the inside diameter of the tube (4).

Abstract: The invention relates to a drive, particularly a push and pull drive, which has a cylinder with a cylinder inner chamber (Z) and a cylinder axis (F) and a piston movably arranged in the cylinder and to which is fixed a flexible force transfer means (U). For a double-action drive the cylinder inner chamber (Z) or the piston must have a larger cross-sectional surface than the force transfer means (U). In order that, despite this, the cylinder wall can serve as a guidance means for the flexible force transfer means, either the cylinder inner chamber or the force transfer means has a non-circular cross-section, so that on a cross-section there are at least two points (A1 to A3), on which the cylinder inner wall can guide the force transfer means.

Abstract: A conveying system has at least two equidistant conveyor chains. In order that the chain links of the conveyor chains also move synchronously on conveying path portions in which the radii of curvature of the individual chain paths differ from one another, the chain link spacings can be adapted by corresponding control means to the ratio of the radii of curvature of the individual chain paths.

Abstract: Printed products, which are obtained as a scale formation from a processing stage (10), are intermediately stored and rearranged in such a way that they can again be supplied for further processing to a processing stage (20) as a scale formation, which can have a different number of scale flows, different speeds and a different sequence of different printed products. The method takes place in three method zones. In the first method zone (1), which is connected to the processing stages (10 and 20), the scale flows (S) are wound onto roll cores (WK) or rolls (W) are unwound into scale flows (S). In the second method zone (2), the rolls (W) and cores (WK) are transported between the storage station and the winding station and storage units (horizontal roll pairs (WP) and core flanges (R)) are formed and dismantled. In the third method zone (3) the storage units (WP, R) are introduced to and removed from a store.

Abstract: A vibrator for producing seismic vibrations in the earth is carried by a vehicle. The vibrator has a base plate, a reaction mass and support plates and a lifting and lowering apparatus for raising and lowering the vibrator between a raised transportation position and a lowered operating position in which the base plate is pressed against the ground. The lifting and lowering apparatus includes piston and cylinder units each connected at one end to the vehicle chassis and at the other to a support plate. In one embodiment, the piston and cylinder units are attached to the vehicle by belt-type pivotable bearings to permit swiveling of the vibrator so that the base plate is tiltable to adapt to an uneven earth surface. In another embodiment, the piston and cylinder units are attached to the vibrator by spherical pendulum support bearings which also allow swiveling and tilting of the base plate.

Abstract: Buffer storage of printed products conveyed in scale formation on a conveyor belt (10) is brought about by buffer device (12.1, 12.2, 12.3 etc.), running in a conveying section with a speed which is lower than the speed of the conveyor belt (10) and having a fixed reciprocal spacing and are switched by the printed products to be buffer stored into a state in which they decelerate the printed products and set same to the spacing of the buffer devices. The number of buffer devices on the conveying section is constant and the number of active buffer devices is a function of the number of printed products located on the conveying section provided for buffer storage. The buffer devices can be brake claws, which are arranged centrally between two parallel conveyor belts on a drag chain in such a way that in a lowered, inactive state they are lowered below the conveying surface of the belts, but in their non-lowered, active state project at least partly above the conveying plane.

Abstract: A method of manipulating information is disclosed in which the data is stored as a digitized image and is retained in image form for various data processing manipulations. A font table is formed having a matrix of fonts correlated with characters and symbols in code form such as ASCII. Desired material in the stored documents is located using pattern-match searching with a parallel processor search engine.

Abstract: A hydrophone for a marine seismic streamer has a pressure sensor with outer membrane surfaces on which piezoelectric sensors (4, 5) are secured. The pressure sensor is formed from two spaced steel disks (1, 2) having recesses directed toward one another and which are laser-welded at the edges in a gas-tight manner. The pressure sensor is electrically insulated from its external environment by a synthetic resin coating, which may enclose the entire pressure sensor, including the connecting wires. A method of making the hydrophone is also disclosed. The hydrophone can be manufactured so as to be small in dimensions and weight, is mechanically sturdy and capable of withstanding overload, as well as being protected by the synthetic resin coating against short circuiting and corrosion.

Abstract: The process for the production of a thermoelectrically weldable zone in thermoplastic materials is significantly improved by the true-to-size, air-free embedding of the heating conductor at a clearly defined depth below the joining surface. For this purpose in a first process step a sublevel wire bed bottom is cut in the material, in which is cut a substantially inverted T-shaped incision, running in two planes and at the desired depth, measured from the material surface and, following the surface profile, the cut is passed along the heating conductor insertion line. Using the same tool the cover strips formed are raised and stretched along the path of cut, so that an open channel is formed with the sublevel wire bed bottom. Preferably in the same operation the wire bed is also cut true-to-size with a cutting tool and corresponding to the heating conductor. In a later process step the heating conductor is placed through the still open channel, the cover strips are pressed and then melted.

Abstract: A metal utensil with handles shaped onto the marginal portions thereof can be manufactured in a simple, material-saving manner. Such a utensil can be used in a more universal manner than conventional utensils. A utensil usable as either a container part (10) and/or a lid part (15), has handles (4) for holding the utensil with a handle attachment (12) shaped onto the rim of the opening to which a handle is connected.

Abstract: Labeling equipment has a support rotatably driven about a central shaft and above a stationary bench, the support carrying label shafts pivoted by gear assemblies so that curved label plates on the label shafts are glue-coated over their full area by rolling off a glue roller when the support is rotating, removing labels from a label box and transferring the labels to a label transfer device. The gear assemblies each have a gear segment pivotably resting on a gear assembly shaft borne in the support and meshing with a pinion of the label shaft, the gear segment being pivotably driven by a cam follower moving along a cam curve in the bench. Clutches are coupled in a predetermined angular position of the support to disengage individual label plates from their constrained motion to block label removal. The cam follower is carried by a pivoting arm on the gear assembly shaft, the arm being engageable by means of a clutch with the gear segment.

Abstract: The surface of a metal foil to be used as an intermediate layer in printed circuit boards is chemically roughened. In one embodiment, fine depressions are etched out of the metal coating. In another embodiment, protuberances are plated thereon. The use of the method permits the use of the foil in the production of multilayer printed circuit boards with coatings having different thermal expansion characteristics and improves the adhesion with the next conductor layer applied thereto to a significant extent and prevents delamination.

Abstract: Product to be removed from winding stations (full rolls from winding-up stations, roll cores from winding-off stations) are deposited by a manipulation/transportation device on a transfer mechanism (20.1) and are transported from there with a manipulation/transportation vehicle (30) to a storage location. Product to be introduced at the winding stations (empty roll cores for the winding-up station, full rolls for the winding-off station) are transported by the same manipulation/transportation vehicle (30) from a storage location to the transfer mechanism and are deposited there and are introduced at the winding station by the manipulation/transportation device. The transfer mechanism (20.1) is designed in such a way that the manipulation/transportation vehicle (30) can deposit the product to be introduced from a single position and can take up the product to be removed. Between the two operations it is merely necessary for the manipulation tool to perform a single translatory movement.

Abstract: A method for producing aligned passages through substrate materials, in which the projection of the inlet and outlet openings does not coincide, uses displaced application of etching windows on opposite sides and corresponding pronounced under-etching of these windows. By applying displaced etching windows on both sides of the substrate and through-etching the substrate through these windows, `oblique` passages are obtained through the substrate. By a suitable location of the windows it is also possible to produce branched passages with more than one outlet opening.

Abstract: A retainer for a mattress cover such as a sheet has a central band made of a stiff, smooth material and elastic straps attached to opposite ends of the band. Openable and lockable fasteners are attached to the ends of the straps, each fastener having a pair of jaws. One end of a short length of cord is attached to the fastener, the other end being free. In use, the band extends under the mattress and the fasteners are clamped to opposite sides of the cover with the cord inside a bight or fold of the cover to provide an enlargement which can be securely gripped by the fastener.

Abstract: A stem for an endoprosthesis to be anchored in a bone (3) comprises a chamber (4) which surrounds the stem periprosthetically, which can be sealed in a pressure tight manner and which can be expanded with a thermoplastic or thermostable filling material (16). The rigid stem (1) of the endoprosthesis is connected mechanically to the bone (3) via the expandable chamber (4) by means of the filling material (16). The filling material is isolated from the bone (3), however, by the wall of the pressure-tight chamber (4). This makes it possible to ensure that the outer wall of the chamber (4) adjacent to the bone is extremely biocompatible.

Abstract: The invention concerns an injection device (1) receiving in exchangeable manner an ampoule (4) with a plunger (5) and an injection needle (6). It further comprises an actuation means (7) essentially consisting of an operating head (8), a drive element (11), a guide element (24) and an output member (9, 19) preferably in the form of a rod (9) and flange (19). The output member is non-rotatably affixed to the guide element (11) itself rigidly mounted inside the device (1) and seated by its own thread in an internal thread (27) of the drive element (11) which can be displaced axially and into rotation by the manual operating head (8). When rotating the operating head (8), the output member (9, 19) is advanced and in the process forces forward the plunger (5), the result being injection. The stationary guide element (24) of the disclosed device is located axially ahead of the axially displaceable drive element (11).