Abstract: A housing contains a device such as an electrical switch and a handle is mounted on a cover of the housing. The handle is rotatable between first and second positions. The handle is coupled to the device within the housing so that when the handle rotates, the device is changed from one state to another. An annular wall partially surrounds the handle, the wall having end faces which limit the rotational movement of the handle. The wall and the handle have holes which can be aligned in one position of the handle and held in that position by inserting the shackle of a lock. With this structure, a switch can be locked in an off or on position to inhibit unauthorized changing of the switch position.

Abstract: An electrical housing apparatus has an electrically non-conductive enclosure with side and end walls. One of the end walls has an opening to receive an electrical conduit and the other walls are un-perforated. An electrically conductive frame is mounted inside the enclosure, the frame being arranged to support electrical devices is a specific vertical orientation and provide ground bonding between the conduits and electrical devices in the housing. Mounting brackets at opposite ends of the frame have openings either of which can be aligned with the end wall opening when the frame is placed in the enclosure, depending on the orientation of the enclosure: the end wall with the opening can be at the top to accommodate a top conduit connection or at the bottom to accommodate a bottom conduit connection. A water-resistant cover closes the front of the box, the cover and frame being arranged to have a single orientation regardless of which enclosure orientation is used.

Abstract: In method of yarn strength measurement, the yarn of which the strength is being tested is grabbed while the yarn is moving during a production or processing process, in a spinning machine or a yarn-processing machine, a spooling frame or open-end spinning machine, by a clamp and is made to tear. The forces arising during tearing are determined using a test device and utilizing the electronic infrastructure already extant in the yarn cleaner to ascertain the yarn strength.

Abstract: A high intensity discharge lamp system includes an AC supply for a chamber within which a plasma conductor is created to generate light. In order to control the concentrations of charged particles within the chamber and to influence migration thereof, a DC circuit taps power from the AC supply and produces a DC potential which is applied to relatively large-surface components in the vicinity of the plasma chamber. Properly polarized, the large-surface components, such as a reflector and a conductive housing, refractor or door, produces electric fields which either inhibit or encourage migration of the charged particles.

Abstract: A decking or sheathing material for roofing includes a sheet of plywood or OSB with a reflective layer of foil material adhered thereto, the foil material including a layer of metallic foil such as aluminum and a kraft paper backing. The roof decking is fastened to rafters in a typical roof structure with the foil facing downwardly and exposed to air. A machine for applying the foil material to sheets of plywood includes a conveyer belt table for conveying the plywood sheets in succession, an adhesive roller for uniformly applying a layer of adhesive to the upwardly facing surfaces of the plywood sheets and a roller for pressing the foil material onto the adhesive-coated surfaces of the plywood from a supply roll.

Abstract: A rim for a spoked bicycle rear wheel has rim holes laterally displaced by an amount (E) from an axis passing through the center of the cross-section of the rim. Such a rim can be subject to undesired tilting under stress imposed by spokes connected between the rim and the wheel hub and placed under tension. The rim side containing the spoke nipples is more highly loaded. To bring about balance of the tensions on both rim sides, the rim cross-section has an asymmetrical shape so that there is more rim material on the more highly loaded side and so that that side is also stiffer. The compressive forces in the rim material are better balanced, making it possible to use less expensive, conventional materials.

Abstract: A method for the mass growth of cells (2) which consists in growing the cells (2) in a thin film, e.g. a bubble or foam, of nutrient medium (4), which is continuously recirculated to the bulk medium (1) for replenishing. Growth rate and yields obtained with this method in large scale cell culturing are far superior to those obtained by know methods, due to the increased metabolic exchange of the cells (2) with the environment.

Abstract: A winding tape for winding up printed products with a fastener having two fastening parts is described, one part of the fastener being the tape-like material and being made from a first polymer of a material pair and the other part of the fastener is an end piece on the tape-like material and at least partly is made from a second polymer of the material pair, the first polymer being chosen from among polyesters, polyamides, polyimides, polyterephthalates and polycarbonates and the second polymer is a hot-melt adhesive based on polyamide-6, polyamide copolymers, polyolefins or polyvinyl alcohol and has at one end a tape-like support material onto which is drawn a hot-melt adhesive film of the second polymer, which is heated for joining together the tape and the tape end and is pressed onto the winding tape.

Abstract: A sound enhancing apparatus for use with a string instrument has separate tone pick-ups for picking up the tones of individual strings and circuits for, determining the fundamental tones of these tones, multiplying the frequencies of these fundamental tones by small integers and/or dividing them by small integers and consequently producing harmonic overtones and/or undertones. The thus produced harmonic undertones and/or overtones are selected and amplified according to fixed and/or adjustable criteria and finally admixed with the original sound. The electronic apparatus for performing the process can operate in analog or digital manner.

Abstract: A dimming system for a discharge lamp has a magnetic regulator with first, second and third windings linked by a magnetic core, the first winding being connectable to a source of alternating current. The second winding and a starting circuit are connected to the lamp for lighting the lamp. The third winding is tapped and has a ballast capacitor connected across the winding. An inductive reactor and relay contact set are connected in series between one end of the third winding and the tap so that when the contact set closes, the reactor stores energy from the source and reduces the power to the lamp, abruptly reducing its light output. A motion-responsive detector is used to energize the relay. With a normally closed contact set, the lamp is dimmed until a moving person is detected, opening the contact set and increasing the lamp light output. Multiple lamps can be controlled simultaneously.

Abstract: This method serves to optimize and maintain constant fiber-quality in automated mixing of bales having fibers of differing qualities. The bales (1a, . . . 1k, . . . 1n) are moved into the conveyance path (3) of a removal member (4) of a bale-removing device (2) and a fiber sample is automatically withdrawn in each case from the bale (1k) processed by the removal member (4) and is analyzed in measuring and control instrument (5). The analytical values so measured are continuously compared by a program in the measuring and control instrument (5) with nominal values and the comparison measurements so obtained in a continuous manner are used to maintain the mixing values by instructing the bale-removing device (2) to remove corresponding quantities from the particular bales (1a, . . . 1k, . . . 1n) evincing different qualities.

Abstract: A starting circuit for a discharge lamp includes a tapped ballast transformer connected at one end to an AC supply and at the other end to a discharge lamp. A capacitor and charging resistor are connected in series across the lamp. A breakdown switch device and a current-limiting resistor are connected in series with each other between the transformer tap and the junction between the capacitor and charging resistor. When the capacitor charges to the breakdown value, it discharges through the breakdown device, current-limiting resistor and transformer, producing an output pulse to start the lamp. The value of the current-limiting resistor is selected to limit and shape the peak of the output pulse.

Abstract: A cutting electrode for medical resectoscope has an insulated loop support displaceable in the axial direction of the resectoscope shaft, the distal end of the support carrrying an un-insulated cutting loop extending from the end of the loop support transversely to the axial direction a predetermined distance depending on the extent of cutting desired. A spacer carried by the loop support extends distally in front of the cutting loop and laterally of the cutting loop a smaller distance than that of the cutting loop and is shaped to provide smooth, low-friction engagement with tissues with which it comes in contact.

Abstract: An automated pipetting device has a first driving motor (1) with a spindle (1') to drive a plurality of injection pistons (6) each movable by a piston shaft (7), and a second driving motor (2) that drives a carrier plate (3) with a spindle (2') in a horizontal direction. A plurality of pipette cylinders (5) are carried in the carrier plate (3) which is pressed against a stationary valve plate (4). The valve plate has a duct system (10) with channels (11,12,13) for supplying and removing liquid. Each individual pipette is spring biased so that its outlet region is pressed against the valve plate at openings of the channels and the carrier and pipettes can be moved with the pipette outlets pressed against the valve plate surface. Each pipette has independent means for applying the spring bias.

Abstract: The process makes it possible to gather together and detachably connect two or more partial products (2a,2b). The resulting end product can be broken down again into partial products without destroying them. The connection between the partial products is of variable intensity. An apparatus for performing the process has a collecting mechanism (20), a supply (10) for an outer partial product (2a) and a supply for an inner partial product (2b), an opening station (21), a straightening station (23), a removal station and an adhering station (22), which is connected upstream of the supply point (11) at which the two partial products (2a,2b) are brought together, as well as a pressing station (24). The adhering station (22) is connected to an adhesive supply and control unit (35), which makes it possible to adjust the adhesive quantity vary the surface areas and location where adhesive is applied.

Abstract: Folded main products (H) are brought from an inserting drum (2) with a fold directed at right angles to the conveying direction and in the open state to an acceptance station (U), where they are gripped at edges facing the fold by grippers in such a way that a gripper always grips the rear folding part (H.sub.h) of a main product in the conveying direction together with the front folding part (H.sub.v) of the following main product. As an almost continuous folding belt the main products are conveyed through an insertion section (1), whilst from above and between the grippers the insert products (E) are inserted in the main products.

Abstract: A blood sampling device comprises a pointed cannula (3, 23) at each end, a pre-evacuated sample container (1, 21) with a self-sealing stopper (2, 22) which can be perforated, a self-sealing membrane (8,28) which can be perforated and a blood-viewing chamber (7, 27) the walls of which are surrounded by transparent material arranged in front of the stopper (2, 22) in the direction of perforation. The chamber (7, 27) is arranged on the stopper (2, 22) and is sealed off essentially from the sample container (1, 21) by said stopper (2, 22) and from the patient by the membrane (8, 28).

Abstract: A shaft-part for a joint-end prosthesis or bone-shaft replacement and is implantable in a tubular bone 1, including a hollow, frusto-conical braid 5 constituted by two mutually crossing series of fibers 2, 3. When traction is exerted on the fibers 2, 3, the frusto-conical braid narrows; if, on the other hand, compression is exerted on the fibers 2, 3, the diameter of the frusto-conical braid 5 widens. These effects may be used on one hand to implant while the shaft rests areally against the marrow cavity 13 and on the other hand to remove the shaft without complications in case of new operations.

Abstract: A method and apparatus are used for positioning and stabilizing flat articles at a specific point (P) of a conveying path, the articles being conveyed in a suspended manner. Non-rigid articles which are conveyed at such a speed that they are deflected by the air resistance from their vertical, flat position, are positioned so that they can be guided into a closely defined compartment of a processing drum with their lower edge at the front. For this purpose guide elements (12) are inserted from above into the conveying flow and over an insertion path (ES), gradually bring the printed products (11) into the intended position and over a following discharge path (AS) discharge the guide elements upwards again out of the conveying flow. The described embodiment of the apparatus comprises chains, closed to form a loop and positioned laterally of the conveying flow, which pass over sprockets and on which the guide elements (12) are arranged at regular intervals.

Abstract: A shaving apparatus for flat and contour shaving makes it possible to distribute in the form of a think film on the skin just prior to shaving a cosmetic or pharmaceutical preparation. It comprises an applicator part, a feed part and a blade part, the blade part and the applicator part together forming the razor head (1), while the feed part forms the razor handle (4). The preparation is applied by means of a roll (5) or a spatula-like part, on which rotates a thin film of the preparation supply shielded from the outside. The feed device comprises a preparartion reservoir (6) and a miniature pump (5), which is arranged in such a way that it can easily be operated during application by the fingers guiding the razor and consequently during shaving preparation is fed into the applicator. The blade part comprises at least one blade functionally cooperating with the applicator part.