Abstract: A sheath which contains a catheter or guide wire is provided with a connector at one end which, in turn, has a sealing membrane which can be pierced by a hollow needle when the catheter/guide wire is to be expelled from the adaptor assembly. An introducer, which is to be implanted in a body cavity such as a blood vessel, also has a hub with a sealing membrane disposed across the hub so as to abut the sealing membrane of the adaptor assembly. This membrane is also pierced by the hollow needle when the connection is made prior to insertion of a catheter or guide wire into the blood vessel. In one embodiment, a syringe may be provided with a connector and mounted on the hub of the introducer.

Abstract: The power conversion machine includes a housing which defines a spherical cavity as well as a stator which is secured within the housing on a first axis. The stator is provided with an annular groove which is disposed on an angle to the axis of the stator while an annular guide member is slidably mounted in the groove for rotation about the stator axis. A first rotor part is secured to a shaft which is rotatably mounted on the stator and carries a pair of pistons which define ball shaped segments within the cavity of the housing. A second rotor part having a second pair of pistons defining a pair of ball shaped segments within the cavity is disposed on a second axis perpendicular to the axis of rotation. Pins are used to secure the second rotor part to the annular guide member for rocking of the second rotor part about the second axis during rotation of the two rotor parts about the axis of rotation.

Abstract: A conveying system is provided for conveying lap rolls between different stories of a building. The conveying system includes an elevator and a transfer station on each story. A control unit controls the elevator and transfer stations independently of the operation of the machines on the two stories for the conveyance of the lap rolls as well as other intermediate products.

Abstract: A cargo ship (10) is equipped with side port openings (34,35) for transporting freight (59) inwardly and outwardly from the ship. The ship (10) is equipped with an upper superstructure (25) in a continuous length above a fore-and-aft row of upwardly opening holds (11a-11f). The holds have maximum hatchways. There is defined in the superstructure a common, shielding transport compartment (33) for the holds which permits movement of a transport arrangement (36,37) with freight (58) fore-and-aft and transversely a distance above the holds and via a locally defined side port opening (34).

Abstract: A magazine is provided with an insert which can be utilized as a return mailer. The insert can be stapled or glued in place when the plies of the magazine are assembled together and includes a multi-ply portion in another part of the magazine. The multi-ply portion has a pocket which contains one or more inserts and has a flap which can close over the pocket so that, when removed, the multi-ply portion can be used as a return mailer.

Abstract: A process for inhibiting corrosion in oil production fluids resides in adding to the oil production fluids an effective amount of betaine or ampholyte of the formulas 1 or 2 ##STR1## wherein R.sup.1 is C.sub.10 -C.sub.20 -alkyl or C.sub.10 -C.sub.20 -alkenyl, preferably C.sub.14 -C.sub.18 -aklyl or C.sub.14 -C.sub.18 -alkenyl and R.sup.2 and R.sup.3 are C.sub.1 -C.sub.4 -alkyl, preferably methyl.

Abstract: A radiation sensitive plate comprises a substrate coated with a photopolymerizable composition. The composition comprises a polymerizable compound containing ethylenic unsaturation, a perester photoinitiator and optionally an optical sensitiser. The substrate may be a sheet of grained and anodized aluminum and the plate is useful in the production of lithographic printing plates.

Abstract: The invention relates to a packing (2) for a material and heat exchange column (1), in which a gas phase and a liquid phase are brought into contact with one another, said packing comprising a multiplicity of identical packing elements (4) which are substantially in the form of a circular hollow cylinder whose annularly extending wall (6) is outwardly concave and inwardly convex and forms two outer edges (11) extending therearound, said hollow cylinder having a high ratio of outside diameter (D) to height (H). In order to reduce the pressure drop and to increase capacity and effectiveness, provision is made for the packing (2) to consist of a multiplicity of superimposed layers (3) of packing elements (4) which lie flat, are distributed randomly in each layer (3), and internally have a free passage cross-section, and in which the ratio of outside diameter (D) to height (H) is from about 6:1 to about 10:1.

Abstract: A radiation sensitive composition comprises a radiation sensitive material and a dye which dye undergoes a color change in the radiation-struck areas on image-wise exposure of the composition and a color change when the exposed and developed composition is heated to a temperature of at least 180.degree. C.

Abstract: The water craft is provided with a longitudinally disposed recess in the deck with a pair of ridges defining the recess and extending along the sides of the craft. Each ridge is rounded with respect to a centrally disposed rounded crown in the recess so as to provide a surface against which a windsurfer may stand during windsurfing. The ridges are also more gently rounded with respect to the crown in a stern section of the craft to provide for a comfortable seating arrangement for sailing or rowing purposes. The underside of the craft is provided with a pair of runners along the longitudinal edges and a centrally disposed chines. In addition, a winglet extends from the terminal rear end of each runner in order to enhance stability of the craft in water and to direct water out the sides of the stern during sailing.

Abstract: The closed system connector assembly is formed with a male connector and a female connector. Both connectors have rubber membranes which can be pierced by a hollow needle disposed within the female connector. In some embodiments, the membrane of the female connector is mounted on a collapsible tube disposed about the hollow needle. During insertion of the male connector, this tube collapses and, upon withdrawal, the tube expands. In another embodiment, the female connector has a housing which carries the needle and is slidable within a sleeve which carries the membrane.

Abstract: A process for producing a toothbrush produced thereby have the cavities (11, 12) arranged on the back side of the tooth brush head. The longitudinal axes (14a, 15a) for angling the head portions (13, 14, 15) relative to each other are arranged on or at the bristle-carrying side of the head portion directly opposite the associated cavity (11, 12). A blank for carrying out the process and a toothbrush produced thereby have the cavities (11, 12) arranged on the back side of the toothbrush head. The longitudinal axes (14a, 15a) for angling the head portions (13, 14, 15) relative to each other are arranged on or at the bristle-carrying side of the head portion directly opposite the associated cavity (11, 12).

Abstract: A ring spinning machine with various driving systems 10, 12 for driving spindles, driving arrangements, ring rails and the like is regulated in the case of power failure down to a zero revolution range while maintaining preselected revolution relationships. The driving system which is allocated to the load with the greatest effective inertia serves, at first, for the supply of the other driving system in a generator service. Only in a lower revolution range are the driving systems backed via a battery of relatively low capacity.

Abstract: A cargo ship is provided with transverse bulkheads to separate holds from each other. In addition, the bulkheads are arranged in pairs to define compartments therebetween in which flights of steps are arranged. Access openings are also provided in the transversely extending bulkheads to provide access to the steps at various levels. Each flight of steps is contained between two partitions which form a passage within the compartment. A hatch cover is provided at the top to gain access to the passage.

Abstract: A combing head comprises carrying and drive rollers for the lap roll, a cylinder, a detaching roller pair and nippers reciprocable between a drawn-back position and an advanced position. When the trailing end of the lap material runs off the winding tube, the combing machine is stopped at a time after the detaching roller pair have detached a fringe from the lap in the nippers and after the fringe has been separated from the lap. The lap trailing end and the empty winding tube are then removed and a new lap roll is placed on the carrying and drive rollers. Lap material is unwound from the new lap roll until the start of the lap has passed beyond the nip line of the nippers. The combing machine then restarts. The method can, if required, be performed substantially or completely automatically and calls for only a short machine down time.

Abstract: The femur head prosthesis is constructed with a sleeve for mounting on the pin of an anchoring shank. The sleeve is provided with a slotted end which is of smaller diameter than the end of the pin so as to plastically deform about the pin when mounted therein. The plastic deformation permits a clamped connection which prevents rotation of the femur head prosthesis on the anchoring shank.

Abstract: The valve stem of the controlled shut-off valve has a lid and a piston movable in a cylinder. A first cylindrical chamber and a second annular chamber facing the lid are separated by a piston and connected to a low-pressure chamber by ducts extending in the housing of the shut-off valve and connecting lines connected to the ducts outside the housing. The first chamber is also connected to the inlet side of the shut-off valve via a duct extending in the housing and containing at least one control valve actuated by a control line. Closing valves are provided in the connecting lines. A throttle means having a fixed flow cross-section is disposed in the duct of the first chamber inside the housing. The duct of the second chamber has a fixed minimum cross-section.

Abstract: The thread catching and severing ring structure includes a ring element which is press fit onto a second ring element. The first ring element has a plurality of projections which overlie a groove on the second ring element. The projections and groove are sized so that a thread can be guided into the groove and thereafter into a gap between a land on the second ring element and a projection on the first ring element.

Abstract: A method and apparatus for opening fiber bales including a fiber removal element, compression means disposed upstream of said fiber removal element and advancing means near said compression means to advance the surface layer fiber material of a bale toward said fiber removal element.