Abstract: In accordance with one aspect of the present invention is a specific, illustrative embodiment of an integrated pump and inflatable liner assembly which comprises a hollow inflatable member for the reception and storage of fluid, the inflatable member having a selected configuration so as to line the protective headgear and partially encircle a user's head; the inflatable member housing at least one resilient member for protection of the user's head; and a pump formed integrally with the inflatable member for moving fluid therein. When the member is positioned inside a helmet, the pump is exposable for adjustment by the user. A bleed valve in the hollow member controls the passage of fluid from the hollow member.

Abstract: A system for delivering audio advertising messages to shopping carts moving through a plurality of spatially defined transmission zones arranged in the aisles of a store. In the illustrative embodiment, a plurality of transmitters of compact construction are each attached to a shelf within the store. Each shelf transmitter has a spatially defined transmission zone of selected geometry and predetermined dimensions so as to occupy an assigned region of space within one of the aisles in the store. When any one of these transmitters detects a shopping cart residing in its spatially defined transmission zone, the transmitter transmits over its spatially defined transmission zone, a modulated signal carrying an audio message provided by a playback mechanism within the transmitter. A receiver on the detected shopping cart demodulates the received modulated carrier signal and produces an audible signal of the audio message provided by the playback mechanism in the transmitter.

Abstract: An oral hygiene composition in a suitably applicable form for whitening and cleaning teeth provides a non aqueous composition containing an oxygen releaser such as calcium peroxide, magnesium peroxide or potassium chlorate. The oxygen in these agents is stable in the composition until the composition meets water during actual brushing at which time the oxygen is released to effect a bleaching action removing stains from the surface of the teeth, thereby serving to whiten them. The composition may be formed with other known dental hygiene constituents providing for whitening and hygiene in one application.

Abstract: Compounds of formula (I): ##STR1## or a tautomeric form thereof, or a pharmaceutically acceptable salt thereof, or a pharmaceutically acceptable solvate thereof, wherein:A.sup.1 represents a substituted or unsubstituted aromatic heterocyclyl group;R.sup.1 represents a hydrogen atom, an alkyl group, an acyl group, an aralkyl group, wherein the aryl moiety may be substituted or unsubstituted, or a substituted or unsubstituted aryl group;R.sup.2 and R.sup.3 each represent hydrogen, or R.sup.2 and R.sup.3 together represent a bond;A.sup.2 represents a benzene ring having in total up to five substituents; andn represents an integer in the range of from 2 to 6; pharmaceutical compositions containing such compounds and the use of such compounds and compositions in medicine.

Abstract: An automatic bar code symbol reading system comprising components for carrying out object detection, scanning, photoreceiving, A/D conversion, bar code presence detection, symbol decoding, data format conversion, data storage and data transmission functions. In general, the bar code symbol reading device includes a control system having a plurality of control centers that control the operation of the system components in accordance with preselected system control operations. Each of the control centers are responsive to control activation signals generated by certain of the system components upon the occurrence of predefined conditions. Certain of the control centers are capable overriding other control centers to provide diverse control capabilities which facilitate execution of intelligent operations and power conservation, during bar code symbol reading.

Abstract: An arrangement for introducing and removing a lance into and out of a tiltable metallurgical vessel has drive means stationarily arranged in the direction of the lance axis and means for pivotal mounting of the drive means. The lance is designed as a guide and is guided by the drive means and is movable in the direction of its axis. In a method using the above arrangement for positioning the lance relative to the metallurgical vessel, the actual position of the vessel is taken up by a position transmitter on said vessel, and the drive means is actuated to position the lance in dependence on that actual position.

Abstract: Non-invasive, quantitative in-vivo ultrasonic evaluation of bone is performed by subjecting bone to an acoustic excitation pulse supplied to one of two transducers on opposite sides of the bone, and involving a composite sine-wave signal consisting of repetitions of plural discrete ultrasonic frequencies that are spaced at approximately 2 MHz. Signal-processing of received signal output of the other transducer is operative to sequentially average the most recently received given number of successive signals to obtain an averaged per-pulse signal and to produce a Fourier transform of this signal. In a separate operation, the same transducer responds to the transmission and reception of the same excitation signal via a medium of known acoustic properties and path length to establish a reference signal, which is processed to produce its Fourier transform.

Abstract: An instrument for ophthalmic surgery to remove cataractous-lens tissue has an elongate stem which enables external manipulation at its proximal end and which at its distal end presents a cutter adjacent a transiently open cavity into which cut or chopped tissue can be manipulated. The instrument provides for selectively operated closure of the thus-loaded cavity, an event which must occur before laser radiation can issue within the cavity, in fragmenting or emulsifying reduction of cut or chopped tissue within the cavity. Thus, reduced, the fragmented material is extracted by an aspirating flow of liquid. This process is repeated until the capsulary bag has been cleared of cataractous material, be it nuclear or cortical.

Abstract: This invention relates to a composition of a region joining two members treated thermodynamically by a process set forth by the present invention. In accordance with one aspect of the present invention, there is provided a region comprising a solidified bead containing generally between 1.6 and 2.0% beryllium, a melt and mix zone containing generally between 0.6 and 1.8% beryllium, a recrystallized zone containing generally between 0.6 and 1.0% beryllium, and an overaged zone containing generally between 0.3 and 0.8% beryllium.

Abstract: Method and apparatus are provided for delivering hard-copy facsimile documents, the confidential information of which is visibly concealed. In general, the apparatus includes a facsimile message concealing mechanism which cooperates with a facsimile message recording unit to produce secured hard-copy facsimile documents. In one embodiment, the apparatus is the form of a facsimile machine having facsimile transmission and reception capabilities. Facsimile messages to be transmitted are encoded with one or more command codes which are sent with the facsimile message. At a receiving station suitably adapted to the transmission scheme, the command codes are decoded to reveal specific instructions and message data. Using this decoded information, the receiving station executes the transmitted command, such as concealing the recorded facsimile message, to produce a secured hard-copy facsimile document.

Abstract: A coin sorting device comprises a hopper (4) for holding a supply of coins. Within the hopper (4), a coin feeding disc (2) is provided for feeding the coin to a coin outlet (26). A coin transporting piece carrier (5) is rotated in synchronism with the coin feeding disc (2). The coin transporting piece carrier (5) is inclined to the coin feeding disc (2) at a predetermined angle. A plurality of coin transporting pieces (8) are protruded from the coin transporting piece carrier (5) passing through coin transporting piece reception holes (9, 10). A coin feeding belt (28) extends from the upper portion of the coin feeding disc (2) to the coin outlet (26). The coin is delivered in contact relation with the coin feeding belt (28). A belt driving pulley (33) is rotated by means of the coin feeding disc (2) in a frictionally well-contact relation therewith.

Abstract: Pictures of an object to be measured are taken from several different positions or aspects by a video camera which is mounted via a two-axis articulating head to the measurement arm of a coordinate-measuring machine. The pictures taken from the different positions or aspects are stored and are evaluated with respect to the coordinates of characteristic points of interest on the surface of the object by the method of space intersection, known from photogrammetry. And, in this connection, the position-measurement values supplied by the scales of the coordinate-measuring machine and the angle-measurement values supplied by the articulating head are used for a calculated determination of the coordinates for each of the points of interest on the surface of the object.

Abstract: A clamping mechanism for use in conjunction with or forming an integral part of a laryngeal mask airway, for the purpose of forming a seal between the mask and the entrance to the larynx; the seal is sufficient to overcome the danger of aspiration of regurgitated or vomited matter into the lungs.

Abstract: Compounds of formula (I), and pharmaceutically acceptable salts thereof ##STR1## wherein R.sub.1 is hydroxy, amino, chloro or OR.sub.7 whereinR.sub.7 is C.sub.1-6 alkyl, phenyl or phenyl C.sub.1-2 alkyl either of which phenyl moieties may be substituted by one or two substituents selected from halo, C.sub.1-4 alkyl or C.sub.1-4 alkoxy;R.sub.2 is amino or, when R.sub.1 is hydroxy or amino, R.sub.2 may also be hydrogen;R.sub.3 is hydrogen, hydroxymethyl or acyloxymethyl;R.sub.4 is a group of formula: ##STR2## R.sub.5 and R.sub.6 are independently selected from hydrogen, C.sub.1-6 alkyl and optionally substituted phenyl; orR.sub.3 and R.sub.4 together are: ##STR3## wherein R.sub.6 is as defined above;having antiviral activity, to processes for their preparation and their use as pharmaceuticals.

Abstract: A laryngeal mask airway is described which is fitted with an evacuation or drainage tube which passes through the back of the mask and terminates concentrically within an inflatable-cuff formation at the distal end of the mask. In the case of a laryngeal mask which relies on an inflatable ring to establish a seal around the laryngeal inlet, the inflatable-cuff formation results from sealed passage of the evacuation tube through the distal region of the inflatable ring, the distal end of which is centrally apertured and reentrantly folded into sealed junction with the distal end of the tube. When the mask is inflated, its distal end establishes a cuff, sealing the tube against the upper oesophageal sphincter.

Abstract: A display monitor capable of providing fully synchronized image display in response to an incoming video signal having a range of possible timing formats. The monitor employs a microprocessor that discriminates between the disparate horizontal and vertical sync signals by developing a characteristic signature of the timing format and thereafter searching a resident database of different formats to discern a match. A calibration mode is provided to allow the adjustment of the monitor to an incoming signal that is otherwise unrecognized by the microprocessor or to allow the updating of previously stored information.

Abstract: A plant for the production of molten metals, includes a melting vessel and a metallurgical vessel receiving the melt from the melting vessel for aftertreating the melt and closed by a lid. The melting vessel has a tap opening for the melt provided on the bottom level of the melting vessel and located on the periphery of the melting vessel. The tap opening is positioned above a pour-in opening of the metallurgical vessel. In order to ensure a continuous melting procedure, the pour-in opening of the metallurgical vessel following the melting vessel is provided above a melt guiding chute arranged within the metallurgical vessel.

Abstract: An arrangement for laying a wire in circular windings by bending the wire to circular form during simultaneous twisting includes a wire conveying device and a consecutively arranged laying head including a rotating laying pipe, whose central axis is oriented tangentially to the wire axis on the wire entry end and which gradually passes from the entry end into a circular arc directed approximately perpendicular to the axis of rotation, its center lying on the axis of rotation. A twisting device is provided between the wire conveying means and the laying head. In order to be able to lay wires of larger diameters in closely adjacent windings, the twisting device is formed by a bent pipe twisting the wire under positive locking and frictional engagement.