Abstract: A single use syringe in which the needle is rendered inoperative by retraction after injection has taken place.

Abstract: An insole is provided for a shoe, particularly for a welted shoe which insole is composed of at least three longitudinally arranged sections, adjacent sections being connected at transverse lines of flexure to impart a degree of flexibility to the insole. Preferably the transverse lines of flexure are produced by sewing together three separate sections forming respectively a toe section a center section and a waist section of alternate methods of producing transverse lines of flexure are suggested. The invention also provides a welted shoe incorporating such an insole, said shoe according to a preferred embodiment being provided with such an insole having a projecting rib to which the shoe upper a lining for the shoe upper (if present) and a welt are affixed, in which shoe, before application of the sole of the shoe, the rib and that portion of the upper adjacent the rib are deformed inwardly so as to lie adjacent to the lower surface of the insole.

Abstract: Foundation shield impervious to radon, consisting of a first layer of polymer sheet, a second layer of metal foil, and a third layer of polymer sheet, the three layers being laminated together with the second layer sandwiched between the first and second layers.

Abstract: A longitudinally adjustable rod coupling 1, especially for connecting rod fittings for windows, doors, or the like, in which one connecting rod has a U-shaped coupling shoe with fine teeth at the insides of its legs. The other connecting rod is equipped on two narrow sides with a complementary fine teeth which can engage in the fine teeth of the shoe. The cross-section of the connecting rod is reduced in thickness in the region of the coupling shoe and correspondingly enlarged in width. The fine teeth have their profiles extending transversely over the total width of the portion of the connecting rod, section that is reduced in thickness. The lateral wings of the said connecting rod section that is reduced in thickness, which wings project beyond the width of the normal connecting rod cross-section, are bent approximately 90.degree. to the plane of the connecting rods and form the legs of the coupling shoe.

Abstract: A swing mechanism for an earth-moving apparatus having a main frame and a swing frame which is pivoted at the main frame about a vertical axis. The swing mechanism includes a pair of slide members which are in sliding engagement with a pair of slide surfaces. Each slide member is operatively connected to the swing frame by means of a flexible connector such as a chain. One end of each chain is connected to each slide member and the opposite end of the chain is connected to the swing frame. Each slide member is driven along the slide surface by means of a fluid actuator. One end of the fluid actuator is connected to the slide member, the opposite end of the fluid actuator is connected to the main frame. The slide surfaces extend outwardly from a front to back midplane of the main frame in opposite directions.

Abstract: System for feeding infants, consisting of disposable nipples and including flexible milk bags stored in a tubular casing.

Abstract: System for sealing a plumbing fixture, which fixture has a flange with an edge lying in spaced relationship to a vertical wall surface and a sealing element lying along and attached to the said edge to compensate for variations in the distance between the edge and the wall.

Abstract: Ramrod having an inner rod formed of glass-reinforced polymer and an outer tube formed of a non-abrasive, heat-shrinkable polymer.

Abstract: Hanger for an archery bow having a hook element and a base element which allows the bow to be suspended from a branch or the like.

Abstract: Muzzle-loading firearm which ignites the powder by means of a percussion cap located on a nipple coaxially of the bore, a venting passage directing gas laterally of the nipple.

Abstract: In order to rationalize the operation of foundries and to avoid environmental stresses, it is endeavored so to rework used molding sand accruing as black sand and to free it from binder residue, so that this sand can be used without restriction like new sand. To achieve this aim through thermo-mechanical regeneration the black sand is heated in predetermined, relative low height layer in a fluidized bed furnace to a temperature exceeding 500.degree. C., preferably 750.degree. C. Through the swirling motions of the heated black sand, preferably supported through strong vibrations of the supporting base, the thermal destruction of the enveloping binder particles and a mechanical liberation of the sand grains form their enveloping binder remains is achieved. By means of a forced throughout (e.g.

Abstract: Control of speed and uniformity of the heating of the working zone of the preform in a glass drawing operation in which the softening heat is applied by forced convection (13), using a separate fluid heating zone to introduce temperature and velocity controlled fluid. The size of the working zone is further controlled by changing (18) the configuration of a movable exit sleeve. Uniformity and accuracy of temperature is enhanced by normalization (10) of the temperature of the preform close to a preselected value before the preform enters the furnace.A glass drawing apparatus embodies the preferred means to carry out the process, providing a two-chamber furnace having an air heating chamber (44) connected by air delivery channels (51) to a drawing chamber (43). The drawing chamber has preform inlet (41) and a drawn product outlet (56). Each of the latter preferably has an adjustable opening diameter. The inlet is provided with a pre-cooling collar (35).

Abstract: An executive desk pad for defining the working area on a desk comprises a generally flat, portable rectangular base having a planar underside for placement on the surface of the desk. The major portion of the upperside of the base forms a writing area in front of a user seated at the desk. The writing area serves exclusively to provide a support surface for documents placed thereon. The base includes a telephone handset mounted thereon and accessible to the user seated at the desk, a visual display visible to a user facing the writing area, a keypad for permitting the user to enter numerical information, and a housing containing electronic circuitry. The electronic circuitry includes a telephone circuit, a calculator, and a clock.

Abstract: A heating attachment for the mouthpiece of a musical wind instrument for heating the mouthpiece during outdoor playing of the instrument in cold weather. The attachment includes a sleeve which is adapted to be mounted on the mouthpiece and which includes an electrical heating element. The attachment also includes a source of electrical power and a switch for selectively connecting the heating element to the source of electrical power.

Abstract: A computerized device to teach the basics of the Arabic language and the rules of the recitation of the Qur'an meeting the particular requirements of the Arabic language and the Qur'anic phonetics and script in a convenient and simple manner. The device is provided with Arabic voice synthesis capability using linear prediction coding data and firmware and software pronunciation rules to conserve memory, as well as color graphics and animation capability and an interface to a color television set to add attractive and interactive learning capability. Different sizes of Arabic letters and a complete set of Arabic modifiers are implemented. The device uses variable-length dot matrixes to achieve high quality Arabic letter fonts for the Qur'anic script. A memory conserving graphics protocol is disclosed. The device uses a simple hand-held remote keyboard (eight key or less) for complete operation and is programmable through solid state software memory modules.

Abstract: An index of refraction sensor utilizing a sensor face inclined at the nominal critical angle of an incident beam, refracts or reflects this incident radiation depending upon the wavelength of that radiation and the index of refraction external to it. The refraction sensor apparatus includes a broadband radiant energy source, a radiant energy guidance and collimating means, a prism sensing element interposed in the radiant energy guide, and a detector for continuously detecting the spectral intensities of the broadband radiant energy reflected by the prism sensing element. Advantageously, a single mode optical fiber may be used as the radiant energy guidance and collimating means for directing the broadband radiant energy to the prism and a multimode optical fiber may be used for returning the reflected radiant energy to the detector.

Abstract: Baby bottle nipple or pacifier having a mouth portion made of elastomer and a base portion made of semi-rigid thermoplastic polymer. The mouth portion is formed in a hot first mold and the mouth portion is transferred to relatively cold second mold in which the base portion is molded around it.

Abstract: A faceplate for a highly sensitive low-light level imaging device is provided with an off-axis light filter to reduce optical noise. A transparent optical conduit layer includes an absorbing region around the periphery to absorb off-axis light. A transparent front plate extends beyond the periphery of the conduit and forms a shoulder of easily polished glass to facilitate the sealing of the faceplate to the imaging device frame. A clear glass back plate extends so as to cover the entire inner surface of the conduit including the absorbing region, thereby providing an easily and consistently polishable surface upon which to bond a photosensitive semi-conductor wafer. This reduces the necessity for matching of glass compositions between the core and the absorbing region.

Abstract: Brace for use on a body limb having a joint, wherein a cuff is adapted to be attached to the limb above the joint and a cuff to be attached to the limb below the joint, the two cuffs being joined by a connecting member. The connecting member consists of a main body having a track in which lies a limiting element, the limiting element allowing the main body to be bent one direction only, but not in any other.