Abstract: A tray for holding multiple discs within a storage container which, desirably, is a conventional single disc jewel box, includes a leaf for mounting discs on opposite sides thereof and a shelf substantially rigidly attached, via attachment plates depending from the shelf, to the jewel box base, the leaf being pivotably connected to the shelf via a hinge connection which permits the leaf to pivot thereabout for accessing discs on both sides of the leaf. Flanges cantilevered from the leaf each have an upwardly opening pivot bore for pivotably engaging a pivot pin supported by the shelf. Reinforcing plates depending from opposite sides of the shelf are spaced from the shelf attachment plates for rigidly reinforcing the shelf while permitting the shelf attachment plates to flex, as needed, to engage the jewel box base.

Abstract: The invention relates to a machine for fitting sleeves of heat-shrink plastics material on objects, the sleeves being taken from a continuous sheath that is rolled flat. In the invention, a horizontal shaping mandrel (40) is provided that comprises two torpedoes (41, 42) in axial alignment and interconnected by a thread-like central element (43), the two torpedoes having facing ends (45, 46) each with a pair of smooth chamfers, and each torpedo resting freely on an associated V support (60). The sheath drive means comprises two adjacent pinch wheels (25, 26) disposed symmetrically on either side of the thread-like element (43) between the two V-supports (60) and passing in the vicinity of the pairs of smooth chamfers of the torpedoes (41, 42), each wheel (25, 26) having a peripheral groove (65, 66) that is complementary to the groove of the other wheel so as to form a horizontal axis passage for said thread-like element.

Abstract: There is disclosed a method and apparatus for controlling access to and corruption of information in a computer system. In known “PC Virus” protection methods the boot partition becomes “Read Only” when the system is in Supervised Mode. However, Microsoft Windows, although not strictly self-modifying, does require that certain files located within the Windows directory, can be written to.

Abstract: An improved rosette for securing a disc having a central aperture includes a raised cylindrical hub projecting upward from a planar base, the hub being formed of first and second upstanding annular sections having substantially cylindrical side walls, the first annular section comprising at least 180° of the circumferential extent of the circular hub. Each of the annular sections includes at least one radially extending rim projecting outwardly beyond the cylindrical side walls. An arm cantilevered from the cylindrical wall of the second annular section above the base extends radially inwardly toward the central axis of the hub such that downward finger pressure applied to the free end of the arm causes the cylindrical wall of the second annular section to pivot radially inwardly and downwardly to allow the central aperture of a disc mounted on the rosette to be released from engagment with the radially extending rims for one-handed removal of the disc from the rosette.

Abstract: A smart control strategy/system for regulating a temperature controller for supplying or exhausting heat to/from a room, object or the like. The actual temperature of a room, object or the like requiring temperature control is prompted to dither between a specifiable maximum and specifiable minimum temperature setpoint by signaling the temperature controller periodically on/off. The profile of the actual temperature is continually monitored and the changes in the profile of the actual temperature resulting as a reaction to ON/OFF of the temperature controller are made use of to determine optimum ON/OFF points in time of the temperature controller.

Abstract: A modular control block for applications in the field of analytical procedures has a plurality of individual elements (2, 5, 15, 19, 20), each having at least one channel for the inflow and for the outflow of fluids, which can be connected to each other by means of suitable connection points. In order to reduce the manufacturing costs of the control block, all individual elements (2, 5, 15, 19, 20) are embodied with the same outer contour and may be arranged in-line or staggered, with different function modes of the control block being achieved by either an in-line or a staggered arrangement of the individual elements (2, 5, 15, 19, 20), or by any desired combination of individual elements (2, 5, 15, 19, 20) arranged in-line and/or staggered.

Abstract: In the proposed method of molding toothbrushes, a mold with relatively movable mold parts (14, 16) defining at least one molding cavity (20) corresponding in shape to a toothbrush body is used. One of the mold parts (16) has a brush head defining cavity portion with a plurality of holes (24) for partial penetration into the cavity portion of a like number of fiber tufts. Plasticized molding material is injected under pressure into the cavity (20). Pressure within the cavity is sensed during the injecting step. The injection is stopped when the pressure within the cavity exceeds a predetermined pressure value, thereby avoiding any leakage of molding material through the holes (24).

Abstract: The solenoid valve has two fluidic connections (3, 4), a solenoid (5) and a core (8) guided in a cylinder (7) within the solenoid body (6). The solenoid valve (1) is opened as a result of the movement of the core (8) when the solenoid (5) becomes magnetized. After disconnection of the solenoid (5), it is closed due to the force of a spring (27). Both the core and the closing device of the valve (1) are pressure-relieved, in that the end face of the core (8) has an effective surface which corresponds to an effective surface (18) at the valve body (14). The elastic main seat seal (20) is contained in the housing (2). The taper-ended main valve seat (13) and the compensation diameter (12) are housed in combination within a movable seat bushing (11).

Abstract: In order to simultaneously generate pressure and negative pressure with a single-stage pump, said pump has a pump chamber (18) that is formed in a housing and that is provided with a suction port, a pressure port and a charging port. There is a pair of rotors (30, 32) in the pump chamber (18) that has at least three blades and that rotates in opposite directions around parallel spaced axes and the rotors intermesh free of contact and, together with the peripheral wall of the pump chamber (18), they define cells (60, 62a, 62b, 64) that are separate from each other.

Abstract: In order to attach brush bristle tufts onto carriers made of thermoplastic material, which are formed with multiple holes according to a desired tuft pattern, the bristle tufts are first inserted into the holes in such a way that the bristle tips that are to be used protrude from one side while the bristle ends protrude only slightly from the holes on the opposite side. A heated punch has a multiplicity of conical or pyramidal projections. The projections of this punch penetrate between the holes into the mass of the carrier so that this mass softens and is pushed laterally into the interstices of the bristle tufts. In this manner, a tight interlock is created between the material of the bristles and that of the carrier.

Abstract: The invention relates to a method for transporting data between application programs assigned to different interconnected computers of a computer network, the method being based on a connectionless and packet-oriented transport method capable of transporting the data packets between application programs. When a data packet is transmitted from the application program of a source computer to that of the destination computer, a retransmission timer (RT) and an acknowledgement timer (QT) are initiated. After the data packet has been initially received, it is transferred to the application program of the destination computer. Each time the destination computer receives a data packet, an acknowledgement packet is transmitted back to the source computer, confirming receipt of the data packet.

Abstract: The invention relates to a device for supporting at least one object that is to be suspended from a peg of a display unit. According to the invention, it consists in a sleeve (10) of heat-shrink plastics material having a non-shrunk top portion (10.1) which is flattened face against face and has a through hole (11) for suspending the device, and a bottom portion (10.2) which is shrunk on a top portion of the object(s) concerned so as to enable said object(s) to be suspended.

Abstract: A fluid control element comprises a housing, a control chamber (12) which is formed in the housing and into which at least two flow channels (16, 16′) open, at least one sealing seat (14, 14′) located in the control chamber (12) and associated with the flow channels, and a sealing and actuation element (13) arranged in the control chamber (12) and surrounded by elastic material, which element is pivotally mounted on the housing and can be moved between a closed position, in which it covers a sealing seat (14) with one of its ends as well as an open position, in which it opens the sealing seat (14). The sealing and actuation element (13) forms a two-armed lever (23) whose pivot mount (22) is formed by a covering (18) which is made of elastic material, tightly surrounds the lever (23) and is clamped between two flat parts (10, 11) of the housing (10, 11).

Abstract: In a multi-stage side channel pump, the efficiency can be optimized in that the geometry of each subsequent stage (14) is adapted to the specific volume of the medium at the outlet of the preceding stage (12) by determining the dimensions of the impeller diameter (D) and of the flow channel diameter (d). The stage pressure is the same for both stages (12, 14). The impeller geometry of the next stage (14) is determined by means of the volume ratio of the preceding stage (12) to the next stage (14), assuming geometric similarity.

Abstract: A tool for the injection molding of toothbrush bodies consisting of at least two different, consecutively injection molded plastic components, comprising a pair of mold parts that can be moved relative to each other and that together form groups of parallel mold cavities, wherein one of the mold parts for each group of mold cavities has a recess into which a mold insert can be filled, partial cavities are formed in the mold inserts, each corresponding to a head area of a toothbrush body, two of four groups of mold cavities form a first group pair in which the first plastic component is injection molded, two more of the four groups of the mold cavities form a second group pair in which the second plastic component is injection molded; the mold cavities in each group are parallel to each other and to those of the other group pair; one group of each pair of mold cavities is offset perpendicular to a lengthwise direction of the mold cavities with respect to the other group; the mold cavities of a group of each gr

Abstract: Apparatus for transferring and heat-treating divided solids comprises at least one transfer member (2) having a longitudinal axis (3) and a helical portion (4) mounted to rotate about its own longitudinal axis in a tubular case (1) and connected to the outlet shaft of a rotary drive motor (12). At least the helical portion (4) of the transfer member (2) is made in its bulk of an electrically conductive material, and the transfer member (2) has means (11) for connecting it to an electricity power supply so as to constitute heater means.

Abstract: A fluid control element comprises a housing in which two control chambers are formed, which are isolated from each other and comprise a working port each as well as two pressure ports. Two of these ports are provided with a sealing seat each. The fluid control element further comprises a switching element movably mounted in said housing and comprising a sealing part in each control chamber. The sealing part cooperates with the sealing seats such that these are opened or closed. The fluid control element further comprises an actuating member for the switching element, the actuating member being able to bring the switching element into three positions.

Abstract: In order to simultaneously generate pressure and negative pressure with a single-stage rotary piston machine, said machine has a chamber (18) that is formed in a housing and that is provided with a suction connection, a pressure port and a charging port. In the pump chamber (18), there are two three-blade rotors (30, 32) that work with internal compression and internal expansion and that rotate in opposite directions around parallel spaced axes and these rotors intermesh so as to be free of contact so that, together with the peripheral wall of the pump chamber (18), they define cells (60, 62a, 62b, 64) that are separate from each other.

Abstract: A vibrating membrane fluid circulator comprising an internal hydraulic circuit made up in succession of an admission orifice (1), a pump body (2), and a delivery orifice (3), the pump body (2) defining, in operation, a space (4, 18, 30) having rigid walls (5, 6) between which a deformable membrane (9) is placed having means for coupling its end (11) adjacent to the admission orifice to a motor member (39) generating a periodic excitation force substantially normally to the surface thereof, said membrane (9) being associated with means for creating tension parallel to the fluid circulation direction, said membrane constituting the medium for waves travelling from the end subjected to the excitation force towards its opposite end situated adjacent to the delivery orifice, said displacement being accompanied by forced damping due to the shape of the rigid walls so as to transfer energy from the membrane to the fluid giving rise to a pressure gradient and to fluid flow related to the dimensions of the pump body a

Abstract: The invention provides a method and apparatus for oxygen cutting continuously cast billets, in which a cutting member (8) and a trimming member (9) are positioned relative to the billet to be cut (1) by taking a reference directly on the billet (1) by means of a moving clamp (7), after which the cutting member (8) and the trimming member (9) are lowered parallel to the side faces of the billet so as to cut the billet progressively downwards by attacking one of its side faces horizontally, while simultaneously trimming the cutting bead that forms on the other side face by attacking said other side face continuously in a downward direction.