Abstract: The scissors for household and medical use comprise an upper and lower blade defining a distal region and an upper and lower handle defining a proximal region. The lower blade and handle are formed as one piece and the upper blade and handle are formed as two separate pieces. The upper blade is movably linked to the lower blade by means of a mechanism--e.g. a four-bar linkage--allowing to move said upper blade by acting on said upper handle leaving said one-piece lower blade and handle stationary.

Abstract: A disordered material of staple fibers is separated into individual uniform and parallel fibers to prepare representative, textile samples. A piece of the original fiber material (6) to be analyzed is moved into a space between two mutually parallel disks (1, 2) which are held at a constant distance from each other and are equipped with sets of mutually engaging needles with serrate profiles (3, 4) which penetrate the fiber material (6). The two disks (1, 2) are moved relative to each other while preserving their mutual spacing and the needles linearly resolve the fiber material (6) into its individual fibers. A sample clamp (5) is used to remove a random, orthogonal cross-sectional sample (11), which sample (11) substantially matches by its composition that of the original fiber material (6) and accordingly is suitable for carrying out diverse quality tests.

Abstract: A telephone system uses above voice-band ASK control and supervisory signals which are appended to digitally encoded voice by forcing the least significant bits to a selected level for transmission to the receiving end. At the receiving end, the ASK is regenerated by a circuit including special filter. To eliminate audible noise resulting from the filter action, the ASK signal is applied to a shaping circuit which shapes the leading and trailing ASK envelope into a gradually increasing and decreasing envelope. To detect the proper number of pulses in the signal, a threshold detector is used which follows the envelope, ignoring peaks of low amplitude after peaks of high amplitude.

Abstract: A reaction receptacle made of a chemically inert thermoplastic and used in carrying out reactions with biospecific compounds, preferably for medical lab diagnosis, is characterized by adding a non-migratory substance to the plastic prior to its thermoplastic shaping in such a manner that following said shaping, molecules with reactive groups of atoms of the incorporated substance shall be exposed at least at the receptacle inside surface.

Abstract: A bicycle support rack is mountable on a space tire externally supported on a vehicle. The rack includes a frame which has an opening through which only a portion of the tire can pass so that the frame can be placed over the top of the tire and positioned to embrace the tire. A support plate extends horizontally from the frame and includes troughs to receive the horizontal bars of one or more bicycles. A retaining bar extends across the support plate above the horizontal bars of the bicycles and extends into the central portion of the wheel on which the tire is mounted. The retaining bar is held in place by a lock which encircles a horizontal bar of at least one of the bicycles. The retaining bar can be removed from its locking position and threadedly inserted into a hole in the support plate with a swivel attachment to provide a working support for bicycle maintenance.

Abstract: A buffer storage arrangement contains at least two roll modules (41-44) with interchangeable roll hubs or rolls. A common feed belt (11), the winding planes of the roll modules (41-44) and a common removal belt (12) are located in a vertical plane. The feed belt (11) passes linearly over the winding stations (41-44) and has a number of branching locations (51-54) corresponding at least to the number of winding stations (41-44). Each winding station (41-44) has a connection to the removal belt (12), which passes linearly beneath the winding stations. In order to be able to select the reciprocal arrangement of the products at the outlet, within the apparatus at least one device (7, 79) is provided for rewinding the rolls or the modifying the inlet parameters of the arrangement of the printed products. This permits unrestricted off-line buffer storage of the products and flexible conversion of their inlet parameters, with respect to their reciprocal positioning, orientation or timing frequency.

Abstract: A self-closing lid is provided for a cover for a wiring device box. The cover has openings to provide access to a receptacle within the box. Each lid is formed with laterally protruding collinear gudgeons which are received in shell-like bearing members molded onto the cover. The lid and cover are each provided with a boss between which a compression coiled spring acts. The line of action of the spring is outside of the axis ine of the gugeons, causing the spring to continually urge the lid to its closed position.

Abstract: The disclosure concerns X-ray tubes. To obtain greater temperature stability of an X-ray tube, a substance is placed in the circulation space of the cooling fluid of the tube. The latent heat of fusion of this substance is used so that it melts during the examination stage in absorbing heat, and gets solidified during the resting stage. The disclosure is applicable to X-ray tubes.

Abstract: A receptor preparation of biologically active receptor material is produced in which a cell membrane preparation is lyophilized accompanied by the addition of sugars and/or amino acids and/or proteins. A radioreceptor assay can be produced therefrom, which contains the colyophilizate of cell membrane together with sugar compounds and/or amino acids and/or proteins, as well as a tracer substance and a comparison standard substance. A radioreceptor assay kit uses the radioreceptor assay by making available the substances in a plurality of test containers containing a colyophilizate suitable for the assay.

Abstract: The invention relates to mammographs, and more particularly to a device enabling the mammograph to adapt to different sizes of a cassette, and to displace cassettes. The device essentially comprises a sliding member which, when moved, changes the distance between holding pegs to match new lateral dimensions of a the cassette while still pressing the cassette against a reference edge of the table. In addition, the sliding member is carried on a plate member which moves in such a manner that one or other of the side edges of the cassette can be brought into alignment with the corresponding side of the table.

Abstract: 8kHz ASK signals are produced by an electronic business set instrument to function as control or feature signals. To avoid the problems of transmiting the 8 kHz ASK signals over voiceband telephone lines over long distance, the least significant bit (LSB) of each 8 bit word representative of voice signals is cuased to be at a predetermined level (e.g., low) when an ASK signal is present and at the other level (e.g., high) when there is no ASK signal. A coder-decoder (CODEC) receives a composite signal in one transmission direction, the composite signal including voice signals and 8 kHz function code signals, and produces a sequence of digital words representing the voice signals for telephone path transmission. The presence of an ASK signal is detected and represented in a digital format which is inserted into the digital words. The CODEC receives digital words from the other end of the path, converts them back into annalog signals and generates ASK signals when the presence of such signals is indicated.

Abstract: A scintographic installation includes a patient-supporting table (10) and a stand (11) whose support column (19) is moveable along an axis OX. The invention lies in the fact that the table (10) is mounted on a rail (15) which is capable of taking up different angular positions about an axis parallel to the axis OZ. In a first position the rail (15) is parallel to OY and the stand (11) is in a position suitable for performing tomographic examination. In a second position, the rail (15) is parallel to the axis OX and the stand (11) is a position suitable for examining the entire body by displacement of the column (19), i.e. without displacing the bed (12).

Abstract: A method for making slivers of fibers with parallelized fibers from sets of tangled or matted fibers includes the steps of winding a pre-measured amount of partially oriented fiber material onto a first carding drum (3), detaching the annular fiber web from the first carding drum (3) at a specific site and separating the web from the drum. The separated fiber web is wound off the first carding drum by the detached free end of the web, and the fiber web is stretched. The stretched fiber web is wound onto a second carding drum (8) folded over onto itself, and the doubled fiber web is detached from the second carding drum at a specific site. The detached fiber web is wound off the second carding drum (8) by the detached free end of the fiber web and the fiber web is again stretched. The stretched fiber web is wound onto the first carding drum and the winding and stretching steps are repeated until satisfactory parallelization has taken place, whereupon the iteration cycle is ended.

Abstract: A bundled light beam projected by a light source (21), particularly a laser light source, onto the target is partly reflected back into the measuring apparatus (20), focussed by a concave mirror (61, 81) and split by a beam splitter (26) into two partial beams (25,25'), where the light detectors (28,28'), which in one dimension are at least as long as the partial beams, are arranged at different distances from the beam splitter (26). A linear dependence between the quotient signal and the distance (15) from the measuring apparatus (2) to the target (11) results from the quotient of the detector signals.

Abstract: The invention concerns a surgical instrument, in particular an endoscopic specimen excision forceps wherein the forceps mouth (3) is formed by two or more forceps legs (1, 2). The forceps legs are joined together at a pivot (4). On the other side of the pin (4), a traction cable (6) pullbar or the like is linked to the forceps legs. A guide element is connected to the traction cable (6) and has at least one guide groove (8, 9, 14, 16) entered by a lever arm (10, 11, 15) integral with a forceps leg (1, 2, 13) on the other side of the axis of the pivot (4).

Abstract: A switch or outlet box is formed with a substantially continuous channel around the front edges of the side walls of the box. The channel opens in the same direction as the box interior. A cover closes both the box and the channel, the cover having side walls which lie outwardly of the channel. The cover is dimensioned to loosely fit over the box so that gaps are formed to facilitate drainage of water from the channel. A latch structure holds the cover on. A hinged lid fits over a similar wall structure on the cover.

Abstract: A procedure for surveying the seismic data of a region comprising a central body or structure, for instance an island, by means of a ship-towed streamer, wherein the ship follows a spiral path (2) around the central structure (1) to collected seismic data. Preferably the spiral is an Archimedean spiral with equidistant individual spiral line segments (7, 8, 9).

Abstract: An erection aid comprises an annnular elastic tube which is inflatable to apply pressure to the base of the penis, reducing venous flow of blood while permitting arterial flow. A valve is provided for inflation. The annular tube is made with non-uniform wall thickness so that the inwardly facing portions of the wall are thinner and more easily deformable, permitting the desired pressure to be applied while minimizing axial deformation and thereby minimizing interference with normal functions. The thicker portions of the tube are sufficiently elastic to allow diametral increases as the penis becomes erect.

Abstract: A ureter drain catheter is detachably connected to an extension advancing tube by insertion of a cross sectionally reduced neck at the end of the advancing tube into the proximal end of the ureter drain catheter and is clamped by a mandrin extending through the advancing tube and into the neck in the drain catheter. The design of the neck is such that, at the clamping site, the mandrin is held in place on all sides by the snadwiched neck without making contact with the inner surface of the drain catheter.

Abstract: A connector structure includes a body having a cylindrical recess dimensioned to receive the end of a piece of conduit and a retaining clip to hold the conduit in the recess. The cylindrical recess is provided with an annular recess. The clip comprises a ring with inwardly extending fingers bent out of the plane of the ring, one or more of the fingers having ends thereof bent to form latch tabs. When the conduit is inserted through the clip into the cylindrical recess, the rings are bent against the inner walls of the cylindrical recess so that the tabs enter the annular recess, the intermediate tabe engaging the outer surface of the conduit to hold the assembly together.