Abstract: The feed advance capacity of smoothing rollers in a smoothing rolling mill is utilized to the fullest possible extent by displacing the smoothing rollers relative to each other in the axial direction so that the facing ends of the smoothing rollers are located in different planes extending radially relative to the longitudinal, rotational axis of the work piece. The direction of rotation of one of the smoothing rollers is taken into account and the length of displacement is calculated by a formula.

Abstract: A label handling apparatus comprises a label issuing machine (2) for weighing an article, printing predetermined data, such as the measured weight, price per unit weight and article price, on a label on the basis of the measured weight, and issuing the printed label, a transfer device (40) for transferring the issued label on a belt conveyor (42), and a label sticking device (9) for sucking and retaining the transferred label at a label retaining port (15) by a negative pressure produced by an air current and producing a positive pressure in the label retaining port (15) by an air current with a predetermined timing to blow off the sucked and retained label so as to stick it to a predetermined place on the article. Such labels are prepared in advance with a viscous adhesive agent applied thereto and temporarily retained on a mount sheet, from which they are stripped during their travel from the label issuing machine (2) to the label transfer device.

Abstract: A plurality of lightweight sheets or panels are assembled to form a solar generator, especially for space craft. The panels or sheets which carry the solar cells, are made of fiber compound materials and are secured to a frame structure made of lightweight tubular members. Tensioning elements are operatively interposed between the frame structure and the panel sheets. The corners of the frame structures are provided with connecting elements so that several frames may be interconnected to form still larger assemblies. These assemblies may be folded and unfolded as desired.

Abstract: The present linear air outlet comprises a tubular member provided with an air outlet channel formed by two side walls arranged in parallel to each other and reaching into the tubular member. One side wall is perforated. A closure member is movable up and down, for example manually, in the air outlet channel. The closure member has slanted wall surfaces facing alternately into opposite directions inside the air outlet channel so that the slanting surfaces face the respective perforated side wall. Thus, the closure member performs two functions. It opens or closes the perforations in the side walls and with its slanted surfaces it directs the air in a desired direction.

Abstract: The present hingeless rotor system for helicopters has carrier spars or b each of which is subdivided into three functional sections substantially forming the blade neck connecting the lift producing portion of the respective rotor blade to the rotor mast. The carrier spar sections form a single structural blade neck member extending for about two tenths of the rotor radius from the rotor mast to the lift producing blade portions. About one half of the length of the blade neck adjacent to the rotor mast form the connecting zone proper. The spar sections comprise bands forming respective loops in the connecting zone proper. Two of the band loops are connected one above the other and a third band loop is displaced in the direction of rotation of the rotor from the first mentioned band loops. The third band loop is releasably connected to the rotor mast to allow a folding of the respective rotor blade. The spar sections are interconnected by shear resistant bridging webs having a T- or X cross-section.

Abstract: A force may be applied to any point along a line which may be straight or curved in a plane or in space. For this purpose a force applicator is used which includes a pressure expandable hose section closed at its ends, a reaction member against which the hose rests, and a pressure transmitting plate moving in response to an expansion of the hose. These three elements are held in an operative position relative to one another by a modular frame section which also holds a guide member and a reset element for restoring the hose section to a starting position when no pressure is applied inside the hose. A piston rod extends through the guide member and is operatively connected to the pressure transmitting plate. The modular frame section, the guide member and preferably also the reset element form a modular unit.

Abstract: A tacking rivet has a shaft and a head with a longitudinal bore through the haft and through the head. The head forms a rim extending radially outwardly and the rim or head has a divider which divides the head and/or rim into at least two portions. The divider may, for example, be a slot or recess or indentation.

Abstract: A receiver for solar power stations comprises a plurality of parabolic mirs combined with spherical collectors located substantially in the focal point of each mirror. These spherical collectors form absorbers which may be connected in series and/or in parallel with each other.

Abstract: The synchronism or tracking between two analog signals is compared by a cuit arrangement having two inputs to which these analog signals are applied. A comparator circuit compares the two signals and provides a trigger or energizing signal to a switch which in turn produces an error signal when the two compared signals deviate from each other to an extent larger than a predetermined limit. One input is connected to the comparator circuit through a heterodyning circuit wherein the respective analog signal is heterodyned by a heterodyning signal which varies in its polarity. The comparator circuit includes a polarity detector which provides a signal signifying a positive or a negative difference between the amplitudes of the two polarity signals. A discriminator circuit is operatively connected to the comparator to provide a switch energizing signal when the difference signal does not have any zero transitions or passages with the frequency of the heterodyning signal.

Abstract: An electronic weighing apparatus comprises a load cell which provides an analog voltage associated with the weight of an article being placed on the apparatus. The analog voltage is converted into digital data responsive to each timing pulse by means of an analog/digital converter. The digital data is loaded in a digital display buffer responsive to each timing pulse and is then displayed in a digital manner by a display. On the other hand, a stable state detecting circuit compares the current digital data obtained from the analog/digital converter with the preceding digital data and determines the weighed value having reached a stable state upon coincidence of both the current and preceding pieces of the data. The timing pulse and thus the digital data is prevented from being loaded in the display buffer responsive to the output from the stable state detecting circuit, whereby the display buffer continues to maintain the digital data at the time point when the stable state is reached.

Abstract: The moment sensitivity of shear beam transducers is mechanically compensated to make such transducers relatively insensitive to load applications which are off-center relative to an optimal point of load application. Such shear beam transducers have a free end forming a load application section, a mounting section, and a fillet located substantially where the sections merge. The compensation is made by providing the fillet initially with a larger radius than the final compensating radius. The compensation is made by gradually changing the fillet radius until the transducer output shows substantially no difference between the measurement resulting from applying a defined load in the optimal loading point and the measurement resulting from applying the same load off-center the optimal loading point whereby the transducer becomes substantially insensitive to such off-center load applications.

Abstract: The present warning and/or signalling device is intended to provide radar signal reflections for locating a ship or an aircraft wreck or reflected warning signals when sensing the approach of a vessel, such as a submarine. For this purpose a radar reflector forms a unit with a first buoyancy or lift structure. The unit in turn is stored in a second buoyancy or lift structure which may be placed below or above sea level. The second buoyancy or lift structure is further equipped with identification and/or other types of sensors.

Abstract: The present mixer for construction materials, such as a bituminous sludge, has a trough with an inlet and an outlet and two mixing shafts equipped with blades rotatably supported in the trough in parallel to each other. The blades are uniformly spaced along both shafts and staggered by 90.degree. around each shaft whereby the blades of each shaft follow one another in helical succession. Simultaneously the blades form four in line rows on each shaft. The arrangement of the blades is identical on each shaft except that the helix formed by the blades on one shaft has preferably a pitch direction opposite to that formed by the blades on the other shaft since the shafts rotate in opposite directions but convey in the same direction. The spacing between adjacent blades on both shafts is the same. However, blades located in the same plane extending perpendicularly to the longitudinal axes of the shafts are always spaced by 90.degree.

Abstract: A brake of this type has a brake shaft and a brake wing secured to the shaft so that the wing is rotatable with the shaft in a brake housing filled with a brake medium. A cam ring located in the brake housing has a control curve or surface which cooperates with a cut-out in the brake wing so that the size of a gap formed between the cam ring surface and the brake wing depends on the angular position of the wing relative to the cam ring whereby the dampening action of the brake medium on the movement of the brake wing varies with said angular position of the brake wing relative to the normally stationary cam ring.

Abstract: PCT No. PCT/JP78/00033 Sec. 371 Date July 30, 1979 Sec. 102(e) Date July 23, 1979 PCT Filed July 27, 1979 PCT Pub. No. WO79/00329 PCT Pub. Date June 14, 1979A magnetron is constructed with an annular wall anode structure including a cylindrical wall first section of smaller diameter or cross-sectional area, and an annular wall second section of greater cross-sectional area. The first and second sections are integrally formed as part of the magnetic circuit and are interconnected by a drawn or flared wall third section in a preferred embodiment. The input and output elements are coupled to the larger second section for enhanced spacing and cooling. The anode and cathode assemblies are mounted primarily in the first section. Internal and external permanent magnet assemblies and enclosures are described with an internal magnetic pole piece for improved lay-out of lead wires and to permit use of solid rod section permanent magnets.

Abstract: The present apparatus applies force along a line or to a surface through one or more linear or rather longitudinal, elastically expandable or deformable members. The expansion of the elongated member, such as an elastic, reinforced hose or membrane, is transmitted to the tool proper, for example, a strip steel knife or a clamping device, along the entire length of the tool, whereby a linear force application is achieved. Several of such members may be arranged in parallel to obtain substantially a surface area force application. The force application member may also be curved for applying the force, such as a cutting force to an equally curved tool such as a strip steel knife. The force application member is returned to its starting position after a work stroke is completed. The work stroke is performed by expanding the member with the aid of a medium under pressure. The return is accomplished by a spring force or by a similar expansion member.

Abstract: A valve for controlling fluidic media is constructed with a movable operating element which acts simultaneously as a switching element of an electrical switch. The surfaces of the valve casing or the valve sleeve or the movable operating or switching element are mutually insulated and interrupted at specific positions of the switching element by contacts perpendicular to the direction of movement of the switching element which bridges the contacts. At least one contact may be formed by the valve seat to indicate maximum closure and one contact is located on the valve cover to indicate full opening of the valve.

Abstract: A bituminous mixture of aggregate and a bituminous binder, especially for road construction or repair is prepared by mixing a batch of still moist aggregate with the bituminous binder in a pressurized mixing container. The gauge pressure in the mixing container is maintained at or just above the saturation pressure of the water adhering to the surfaces of the aggregate, at the desired mixing temperature. Upon completion of the mixing the pressure in the mixing container is reduced to below one bar whereby moisture is removed from the mixture. The present mixing apparatus is rotatable about a hollow axle through which a supply of heating gas is maintained during the mixing. During the removal of the mixture from the mixing container the heating gas may be circulated through the next batch of aggregate being prepared.

Abstract: The present safety mechanism is especially constructed for a carriage insertable into a load space of a vehicle. The safety device prevents the accidental unlocking of wheel supporting, tiltable arms of the carriage. Specifically, the wheel supporting arms must not be able to tilt upwardly unintentionally. For this purpose a security pin or bolt is provided which is capable of reaching behind a shoulder of a locking bolt. The security pin or bolt is connected by a cable to a tiltable lever which supports a roller. When the roller comes to rest on a support, for example, the loading platform, the security pin or bolt is withdrawn from the shoulder arresting position so that only after such withdrawal the locking bolt may be disengaged by actuating a respective grip member at the handle of the carriage.

Abstract: Apparatus for removing fluid from and supplying fluid to the human body in substantially equal quantities includes a double tube pump (1), a measuring chamber (2), and a supply container (4), the pump being arranged to deliver fluid from the supply container to the body by a line (13) while removing fluid at an equal rate from the measuring chamber, which receives fluid from the body by a line (1). The measuring chamber is provided with sensing means (8,9) which supply signals in response to variations in the level of fluid in the measuring chamber to a controller (7) which controls the pump motor speed. For use in diuresis and haemofiltration, an additional single pump (14) in a discharge line (16) from the measuring chamber is controllable by a device (18) to remove excess fluid from the measuring chamber. The double pump is the same as that described in U.S. Pat. No. 4,108,575.