Abstract: The accident prevention guard is intended for homokinetic--as well as wide-angle--joints which have an end fork, an inner fork and a central body. The guard is made up of a shell structure for the protection of the central body, held through two annular supports by the central body and able to freely rotate with respect thereto. It is completed with an end cone for the shaft guard, suitable for completing the overlap on the side of the inner fork. The shell structure is made up of two parts, matched to each other along a plane transverse to the axis of the central body; each of the parts is made to rest on and engage with the body of the homokinetic wide-angle joint so as to maintain--as sole freedom degree--the rotation about the axis of the same body.

Abstract: A current-conducting bearing or contact bearing includes contact-making surfaces of a bearing bolt and a shaft fashioned as an axial cone and a hollow cone, respectively. With a suitable choice of materials of the current conducting parts, such as special bronzes, an allowable current load of up to 200 amperes per square cm is possible, compared to 4 amperes per square cm in the case of hard carbon and 25-30 amperes per square cm in the case of bronze carbon of traditional brushes in slip rings of electric machines.

Abstract: Optical wave guides are interconnected with the use of two interfitting shell parts which when fitted together form a continuous tubular channel for receiving the wave guides between there. For this purpose a carrier shell part is provided with a continuous longitudinal groove of a size to accommodate a cover shell part and each part has a longitudinally extending receiving channel portion of complementary form which fit together and form a continuous receiving channel for the optical wave guides which are to be interconnected. After the wave guides are placed end to end in the longitudinally extending wave guide receiving channels defined in the carrier shell, a cover shell is engaged over the carrier shell in a manner which positions it complementary optical wave guide channel with the wave guide channel defined on the carrier shell portion. Wave guide channels are advantageously made with curved up portions at respective ends of the interfitting carrier shell and cover shell.

Abstract: For some applications of slide layers, for example in connecting rod bearings of internal combustion engines, for individual sites of a formed piece, high load bearing capability are required while for other places of the same formed piece good embedding abilities are demanded. A composite material with a slide layer applied by cathode sputtering of a tightly cohesive matrix and an insoluble component distributed statistically in it, is adapted to these opposite demands in that the diameter of the particle of the insoluble material has gradients at predetermined sites, which extend parallel to the surface of the slide layer, and to which slide layer hardness gradients correspond. These gradients are generated during the cathode sputtering process in the substrate to be coated to form a growing slide layer having temperature gradients which are maintained and which extend parallel to the substrate surface.

Abstract: In order to individually pick up and temporarily hold hosiery permeable articles, especially tubular articles like panty-hoses and stockings, and instantaneously stretch apart their elastic edges their automatic transfer, a holding device with adhesive and an air jet is utilized. The device includes a tape motorized to advance with intermittence between two elements provided for driving and tensioning the tape, and with a block for the support of the holding zone of the tape and an underlying support for more articles in overlapping relationship to form a stack.Nozzles for supplying jets for compressed air are located adjacent and perpendicularly oriented to the holding zone of the article, and in such a way as to act in a direction opposite to that of the retention force of the adhesive tape, thereby to pass through the article stretching out the elastic edge of the article as soon as this has moved away from the relevant support.

Abstract: A foldable baby stroller chassis includes a pair of front legs with a plate pivotally connected to the upper end of the legs and a pair of back legs having upper ends pivotally connected to the plate. A member is provided having a lower end with a clamp connection to the lower ends of the front legs and an upper bent arm portion with an intermediate pivotal connection to the back leg. A rear seat portion having an intermediate portion pivotally connected to the upper end of the bent arm portion and a plate, which is preferably triangular in shape, is connected to the rear seat portion adjacent its lower end and has an apex projecting forwardly in which a handle is connected pivotally. A joining plate is provided on each side of the upper end of the back legs and pivotally connected to the upper end of the front legs and the upper ends of the back legs. A bushing is carried on each side of a handle and extends and is movable relative to the handle.

Abstract: A thermal protection device for overvoltage suppressor which includes spaced contacts 6 mounted in overvoltage suppressor magazines 11 of communication systems. A bow-type spring 3 and a melt element 2 l are arranged with the overvoltage suppressor which is mounted in a chamber of a case body or housing 13. The melt element is pierced by at least one arm of the bow-type spring when an overvoltage occurs for short-circuiting the two contacts of the overvoltage suppressor. A thermal protection device with simple components prevents creepage currents between the bow-type spring and the contacts of the overvoltage suppressor 6, a chamber for the overvoltage suppressor is adjacent and abutting to a separate chamber formed in the case body for accommodating a bow-type spring. Between the two chambers there is a separating wall comprising a thermoplastic melt element.

Abstract: A strip treatment apparatus, for example for metal strips includes a strip drive and a strip store disposed both at the apparatus entry and apparatus exit with a processing section being disposed between the two stores and a strip drive being disposed after the processing section. The two loop trolleys or roll tables of the strip stores are mechanically interconnected to form a movable unit. The strip drive disposed after the processing section and/or the strip drives at the entry and exit of the apparatus are operative as drives for moving the interconnected loop trolleys or interconnected roll tables, so that independent drives for these movable units can be omitted.

Abstract: A capacity control device controls an amount of fluid bypassed from a compression chamber formed between contacts of a stationary and revolving spiral elements into a suction chamber by an actuator. The capacity control device provides a feedback mechanism in which a relation between a suction pressure of the compressor and a pressure of actuating the actuator is a function of the first degree and controls the suction pressure to be constant. A capacity control amount of the compressor can be determined only by the suction pressure of the compressor independent of other variation factors. Accordingly, the minimum suction pressure can be restricted strictly and frost control can be attained by the compressor itself.

Abstract: A dispenser for the delivery of dosed quantities of a pasty substance comprises a receptacle having a push button mounted on the receptacle for movement upwardly and downwardly adjacent an end thereof. A rod extends through the receptacle and is connected at its inner end to a follower plunger. A substance flow tube has one end extending into the receptacle to the reservoir thereof for the pasty substance and an opposite end with a substance delivery orifice which extends out of the receptacle. A closing wall adjacent the tube closes the delivery orifice. The follower plunger is in sliding engagement with interior of the receptacle and it is movably engageable around the rod and is movable along the rod upon discharge of a substance through the delivery orifice. There is a connection between the plunger and at least one of the closing wall and the substance flow tube for shifting one end of the closing wall relative to the flow tube opening the delivery orifice for the delivery of the substance therethrough.

Abstract: A molecular joint for axle struts, connecting rods, and similar parts of motor vehicles comprising a substantially cylindrical housing having a joint pivot lying approximately in the middle axis of the housing, and a sleeve-like joint body of an elastomer material, which is arranged between the housing and the joint pivot and adheres to both, with a prestressing. On the inner surface of the housing, there is provided a material recess in a central or middle zone, which reduces the prestress of the sleeve-like joint body in this zone an thereby produces a progressive characteristic of the molecular joint in the direction of loading.

Abstract: In a throat stopper for shaft furnaces, in particular blast furnaces with two hoppers of which an upper hopper is rotatable through a drive device, the upper hopper is designed, by a stationary hood equipped with charging flap valves, as a sluice chamber to be closed pressureproof. For sealing the stationary hood relative to the rotatable upper hopper, there is disposed, at the hood, a peripheral flexible inflatable bellows. The bellows can be pressed against the wall of the upper hopper pneumatically or hydraulically. While material is being charged in the upper hopper, one of the charging valves is open and the bellows is pressureless. During, or shortly after, the charging, the uppr hopper is rotated. For filling the lower hopper, the valves of the upper hopper are closed, bellows is inflated, and the upper sluice chamber is pressurized.

Abstract: From a different stock of tires each time a conveyor belt has a tire placed onto it and centered by a transverse positioning device; in alignment with a vulcanization press or an iron hand or a collecting arm, a number of sensors, particularly photocell sensors, monitor the incoming tire and stop it in the correct position for it to be collected by the iron hand or collecting arm.

Abstract: A support section for mines and tunnels comprises a section having two I-section portions with upper and lower abutting inner I-flanges. Each upper and lower flange has its outer edge joined together to form a box section. The box section has installation slots at spaced locations along both the upper I-flange and the lower I-flange. The installation slots are arranged along a central longitudinal axis at selected spaced locations and the top and bottom slots are advantageously aligned where their projections intersect at least in a vertical projection.

Abstract: A device for the automatic transfer of pantyhose and similar manufactured articles from a toe sewing machine, of a carrousel type with vertical axis, to a drawing machine of the type having a pair of vertical fixed shapes, includes a gripper for gripping the elastic edge of the articles in a loading station of a sewing machine, in order to transfer an elastic edge out of the sewing machine, overturning the edge, and for keeping the pantyhose in pendent and overturned attitude. The device includes a pusher for picking up the elastic edge of the pantyhose from the gripper while stretching it in the form of a rectangle and transferring the article in a pendant attitude to a predetermined position relative to the shapes of the drawing machine.A transfer device for transferring the article onto the drawing machine effects the fitting of the legs of the pantyhose articles on the relevant shapes.

Abstract: A conveyor on which tires are suspended, with sufficient travel to ensure that they dry out following treatment, for conveying them through a distribution chamber for the solution, equipped with devices for discharging jets of the solution; a movable arm is inserted in between two adjacent tires and temporarily lifts off at least one of them in order to rotate it in front of the discharge devices.

Abstract: A miniature motor comprising a stator having permanent magnets constituting a two-pole field, and a rotor having rotor windings wound on a rotor core of a three-pole construction, in which the rotor core is formed in such a manner that the cross-sectional shape of the rotor core normal to the motor shaft is made symmetrical with respect to the radial center line of each pole thereof and that the gap between the permanent magnets and a predetermined range from the center line of the arc-shaped outer periphery of the rotor core facing the permanent magnet is made larger than the gap between the permanent magnet and at least part of the other range of the outer periphery of the rotor core.

Abstract: A radar arrangement which is particularly useful for the terrain following radar of an aircraft avoids disturbances from rain echoes by utilizing an antenna arrangement with a transmitting/receving directional antenna which is circularly polarized. A supplementary receiving antenna of orthogonally-circularly polarized type is used in conjunction with the directional antenna. From a comparison of the signal level distinctions is made between a target and a rain echo. The rain echo can thus be suppressed to give a truer target signal.

Abstract: In a throat stopper for shaft furnaces, in particular blast furnaces with two hoppers of which an upper hopper is rotatable through a drive device, the upper hopper is designed, by means of a stationary hood equipped with charging flap valves, as a sluice chamber to be closed pressureproof. For sealing the stationary hood relative to the rotatable upper hopper, there is disposed, at the hood, a peripheral flexible inflatable bellows. The bellows can be pressed against the wall of the upper hopper pneumatically or hydraulically. While material is being charged in the upper hopper, one of the charging valves is open and the bellows is pressureless. During, or shortly thereafter, the charging, the upper hopper is rotated. For during the lower hopper, the valves of the upper hopper are closed, bellows is inflated, and the upper hopper is hopper are closed, bellows is inflated, and the upper sluice chamber is pressurized.