baber/WOPTO huggingface dataset:
Patent DE-2437048-A1 (DE)
Title: Semiconductor tablets prodn. with definite edge profile - using etching from side with contact electrode areas for parting and polishing
Inventor: SCHAEFER HORST
IPC: H01L29/06
Filed: 1974-08-01
Abstract: The prodn. of semiconductor tablets with defined edge profile producing by etching comprises (a) providing an etching-resistant protective lacquer coating on both sides of a large semiconductor for the prodn. of a number of tablets, with several layers, of different conductivity type, a continuous contact electrode on one side and contact electrode areas on the other side; (b) forming windows in a posn. and of a size determining the division between the contact electrode areas in the coating on this deside; and (c) carrying out etching with a mixt. of 70-90 vol.pts. 50% HF, 5-20 vol. pts. 96-100% HCl and 1-5 vol. pts. additive(s), with simultaneous polishing-etching. Tablets, of any selected geometric form can be produced economically and reproducibly with the required edge profile. No previous machining is needed to produce tablets for the required edge profile for high blocking potential load.
Patent DE-2442074-A1 (DE)
Title: Mixture chamber between carburettor and inlet valve - which provides a constant mixture for petrol engines
Inventor: NIETFELD HEINFRIED
IPC: F02B27/00
Filed: 1974-09-03
Abstract: Conventionally, the mixture is obtained by sucking air directly through the carburettor. This air flows at speeds of 0 to 700 m/sec depending on the speed of the motor so that the mixture is either too weak or too rich. A mixture chamber is added to the inlet pipe so that operation of the carburettor is more even over the whole range of operation of the engine. The chamber can also be used for two stroke engines in which case it is mounted between the carburettor and the inlet slot. The chamber is approximately oval section so that the speed of flow of the gas mixture is first reduced and then increased again.
Patent DE-2446335-A1 (DE)
Title: Rapid starting static converter - particularly for standby supplies provides full power with minimum start up time and uses batteries for energy store
Inventor: UDVARDI-LAKOS JANOS DIPL ING
IPC: H02M7/517
Filed: 1974-09-27
Abstract: The static converter circuit provides its full output power with a correct phase relationship to the supply which it will be replacing in a very short time. During normal supply periods energy is stored to be fed into the load system, and when priming or firing signals are allowed through to the inverter by interruption of the normal supply, the inverter is supplied by some standby d.c. source such as batteries providing both polarities. This ensures that the correct polarity is available at the instant of switching. Switching is by electromechanical relays, thyristors or triacs (Tr1, Tr2), the switching operation being synchronised from sensors in the switching network.
Patent DE-2461900-A1 (DE)
Title: Removing volatile components from molten polyamides - by treating falling film of polyamide with cross stream of gas
Inventor: FREUND PETER DIPL ING DR
IPC: C08G69/04
Filed: 1974-12-31
Abstract: Volatile components are removed from molten polyamides, e.g. nylon 6, before melt spinning by (a) allowing the polyamide to undergo free fall at a sub-atmospheric pressure, in the form of an external film, and (b) treating the film with a cross-stream of a gaseous medium so that it is subjected to a vortex-type action. Subjects the molten polyamide to a very intensive vortex treatment with the gaseous medium, so that monomers and oligomers are efficiently removed, using a relatively low amount of gaseous medium. The prod. has a monomer/oligomer content of less than 2 wt.%.
Patent DE-2462404-A1 (DE)
Title: Injection pressure control - by sensing mould pressure and heater or obstructing material flow accordingly
Inventor: PAULSON DONALD C
IPC: B29C45/77
Filed: 1974-01-10
Abstract: The injection pressure in a mould for fluid synthetic resins is controlled by sensing the pressure within the mould and either controlling the temp. of the incoming material or its flow rate accordingly. Temp. may be controlled by heaters located around or projecting into the sprue and flow rate may be controlled by a plug which projects into the sprue. Such control produces highly uniform batches of articles and is simple compared with the prior cut. The pressure sensing means is pref. a plug slidable, in response to the pressure of the injecte material, in a bore leading into the mould cavity.
Patent DE-2500961-A1 (DE)
Title: Mine heading machine roller cutter - cutter has elastically carried reference tool holder bearing block on springs
Inventor: HORST HEINZ
IPC: E21D9/10
Filed: 1975-01-11
Abstract: The cutter (3) is elastically carried with reference to the tool holder (1). Preferably the block (2) carrying the roller cutter (3) should be loaded by one or more compression springs (4) between it and the tool-holder (1). Elastic rubber or plastics members may be incorporated between block (2) and holder (1), or again the block can be supported on the holder through hydraulic and/or pneumatic agencies. The axis (8) of the roller cutter can also be elastically carried in the attendant roller block (2), in which case the axis ends are borne in rubber or plastics bushings.
Patent DE-2502925-A1 (DE)
Title: Energy absorber for seat safety belts - is made from progressively stretched elastomer elements for ensuring changing energy absorption
Inventor: SHEAD EDWARD OLAF
IPC: B60R22/28
Filed: 1975-01-24
Abstract: The impact energy is absorbed with progressively increasing speed to prevent whiplash injuries caused by the body being firmly held in a safety belt whilst the head is free to move. The elastomer elements are arranged in parallel between the supporting points. These elements have different lengths and hence elements are stretched only after the previous element has been fully stretched. This ensures that initial small movements are made possible to prevent injury. The stiffness of the parallel elements increases progressively as the movement continues. The restoring force is applied in reverse order so that the initial restorating speed is high and this is progressively reduced towards the end of the travel.
Patent DE-2505740-A1 (DE)
Title: Tank for motor vehicles with suction pipe - fitted with device for preventing it sucking air when contents are subjected to horizontal acceleration
Inventor: KUEHNEL JOACHIM DIPL ING
IPC: F02D33/00
Filed: 1975-02-12
Abstract: The motor vehicle tank includes a suction pipe line positioned with its open end near the tank bottom and provided with a device for preventing it from sucking air when a horizontal acceleration is acting on the tank contents. The suction pipe line (5) forms near its lower end a pipe length (9) which is positioned at right angles to another part (7) and pivots parallel with the tank base (3). The vertical part (7) of the suction pipe line (5) is positioned along vertical middle axis of the tank (1) and projects through a seal in a cover (2) of the tank and rests with its bottom end on an elastic part (8) located in a recess of the tank base (3).
Patent DE-2509599-A1 (DE)
Title: Electrical wiring cable permitting relative movement between cores - is suitable for installation in surface ducts or conduits
Inventor: JENSEN BORGE
IPC: H02G3/00
Filed: 1975-03-05
Abstract: The cores, individually fully insulated, are held together in required number in a loose manner such taht free movement, in a longitudinal sense, is possible between cores, but that the whole can still be rolled on a drum, or threaded into ducts, without difficulty. The bundle of cores may be held in cable form by a loose sheath, rings at axial intervals, or a spiral retaining wire or cord running round the bundle. The ability for easy individual movement makes passage round corners easier, and facilitates the making of connections to outlet points, switches, or similar apparatus.
Patent DE-2512336-A1 (DE)
Title: Ski with plastics sole - incorporates a special hard-wearing, frictional, section to prevent slipping
Inventor: KAEHKOENEN EERO
IPC: A63C5/04
Filed: 1975-03-20
Abstract: A ski has a plastics sole provided with a layer of polyethylene or the like having good slide and wearing characteristics. The central portion of the sole of the ski comprises a special sliding surface which has a considerably higher static friction than the remainder of the sliding surface. "Slipping back" is prevented when a skier is "walking" with the ski esp. uphill.
Patent DE-2513519-A1 (DE)
Title: DC load driving method - is suitable particularly for induction motor and has control in each direct source line
Inventor: SAUER HELMUT DIPL ING
IPC: H02P23/06
Filed: 1975-03-26
Abstract: The drive method is for feeding a d.c. consumer or load, particularly an induction motor, from a direct voltage (d.v.) source typically a battery, via a d.c. regulating unit. A controlled d.c. control element is arranged in each line between the d.v. source poles and the load terminals and each series connected circuit comprising the d.v. source and d.c. control element is connected in parallel with an uncontrolled free-running diode. The current-conducting or current-blocking modes of the d.c. control elements are staggered in time relative to one another.
Patent DE-2514681-A1 (DE)
Title: Continuous cable coiling with two reels - uses sliding cutter and guide tubes to obtain changeover between reels
Inventor: KARPPO JUKKA SEPPO DIPL ING
IPC: B21C47/34
Filed: 1975-04-04
Abstract: Continuous coiling of calbe or wire uses two reels alternatively. Each horizontal reel consists of a fixed flange and an axially movable core attached to the second flange. A separate drive motor is provided with each reel. A friction roller drive feeds the cable through a guide to the cutting head and through a feed tube to the first reel. As the approaching cable end reaches the open rotating reel, the flange closes thus trapping the cable end so that coiling is possible. On completion of the coil, the cutter head moves across thus cutting the cable and directing the leading free end through a second feed tube to the empty reel, without stopping the cable movement.
Patent DE-2514697-A1 (DE)
Title: Disc to be applied on telephone dials - is in form of usual number disc and has hole in middle but has figures made of luminous material
Inventor: BOOTZ ALFRED
IPC: H04M1/22
Filed: 1975-04-04
Abstract: The additional disc is designed so that it fits into the projecting edge of the usual dials, on telephone sets and carries figures of a luminous material, so that the user of the telephone can dial the required number accurately even in the complete absence of all other illumination. The disc consists of an annulus (4) made of thin plastics material, and the circular hole (6) in the centre of the disc is large enough to accommodate the usual label carrying information as to the number of the telephone set, extension number etc. The figures (5) are stuck onto the disc (4). There is a notch (7) in the outside of the disc to act as a stop while dialling.
Patent DE-2515890-A1 (DE)
Title: Flap armature relay for circuit boards - has connecting tag(s) secured to armature and leading to relay terminals
Inventor: DISSMANN MARTIN
IPC: H01H51/06
Filed: 1975-04-11
Abstract: The flat armature relay is intended for mounting in circuit boards and has a yoke holding a coil former. The yoke carries an armature with a connecting tag, and the realy has connecting tags on a common terminal side. At least one connecting tag (18) is secured to the armature and lies in the armature plane, being secured at the armature by a securing section (23) at one of its ends. The other end, near a terminal section (24), is secured on the terminal side in a support (19) of insulating material by external means. The connecting tag has an compensation section (25) between its securing end terminal sections, this compensation section permitting a free relative motion between itself and the armature.
Patent DE-2528561-A1 (DE)
Title: Pneumatic powder conveyor filter - has compressed air receiver with coupled discharge and stop valves for cleaning
Inventor: ROTH UDO
IPC: B01D46/24
Filed: 1975-06-26
Abstract: The filter is for a pneumatic conveyor handling powdery or granular material. It is mounted in a chamber above and connected to a separator. A receiver (5) is charge via a pipe (18) with compressed air, and connected to the filter chamber (2) on the downstream side of the filter which is in the form of an insert (3). It has a discharge valve (6) coupled by a connector (13) to a stop valve (8) on the downstream side of the filter chamber. The connector is actuated by a ram (15), and allows the discharge valve to open before the stop Valve. There is a normally open valve (19) in the receiver charging pipe, and normally closed 3/2-way valve (21) in the ram supply pipe (20). The valves are coupled together and function simultaneously.
Patent DE-2530569-A1 (DE)
Title: Grid of piezoceramic chips on base - produced by bonding cutting in two directions and removing temporary cement
Inventor: SASS WOLFGANG
IPC: H01L41/22
Filed: 1975-07-09
Abstract: Small squared chips of material are bonded at intervals into the form of a grid on to a base. A slice of the material is bonded to a mounting with a first adhesive which is resistant to liq. cleaners, cut into strips, and cleaned. The strips, bonded on one side to a mounting plate with a second adhesive which is resistant to a sealant and to the first adhesive, are cut again similarly after sealing the first cuts. The final mountings are treated with solvent to remove the adhesive and sealant, the mounting plate being cut at the same time in one cutting operation. This is an economical method, which gives accurate layout of chips.
Patent DE-2541069-A1 (DE)
Title: Potato stacking conveyor for storage boxes - has cross conveyor mounted across end of and driven by main conveyor
Inventor: ARTNER XAVER
IPC: B65G65/32
Filed: 1975-09-15
Abstract: The conveyor is for filling of storage boxes with potatoes and includes a belt conveyor along the boxes. One end of the belt conveyor is fitted with a cross belt conveyor, for filling the boxes of which at least one part can be lowered in the individual boxes. The cross belt conveyor which is mounted on the end of the belt conveyor is inclined towards the boxes along its whole length and is driven from the belt conveyor. The conveyor is positioned along and above front side of the boxes arranged in a row and is together with its cross belt conveyor movable along the row of boxes.
Patent DE-2544469-A1 (DE)
Title: Traffic noise screening wall - has aligned stepped or tapered holes in spaced panels for through vision
Inventor: SCHROETER MANFRED
IPC: E01F8/00
Filed: 1975-10-04
Abstract: The free-standing noise-screening wall is for erection at the sides of motorways or railways tracks for the reduction of noise in residential areas. It has a number of holes for looking through (5, 6), distributed over its surface area. These openings may widen towards the road or track. The side facing the road or track, at least, may have a surface coating of foamed substance, fibrous material or other loosely structured matter. It may be assembled from two spaced panels, with aligned holes for looking through, the ones on the road or track side being much larger than the others. The unpleasant sensation of being totally cut off and shut in by such walls is reduced, with no significant reduction in sound insulating effect.
Patent DE-2545058-A1 (DE)
Title: Curvilinear radiator hoses mfr.
Inventor: BAUMGARTEN WILFRIED
IPC: B29C48/157
Filed: 1975-10-08
Abstract: Curvilinear rubber hose sections are mfd. by feeding a succession of abutting hollow and flexible mandrels to rubber extruders, sepg. the mandrels from each other, bending them to the required curvilinear configuration and vulcanising the rubber. - The hoses are used for radiator water cooling hoses. Manual operation in hose mfr. is reduced to min.
Patent DE-2547295-A1 (DE)
Title: Ventilator and filler for hydraulic systems - has reservoir for hydraulic fluid with channel between reservoir and system
Inventor: VEJLBY PER AACHMANN
IPC: F16D3/80
Filed: 1975-10-22
Abstract: The ventilator and filler is for hydraulic systems with a pulsating pressure. A reservoir for hydraulic fluid on over-pressure has a channel between the reservoir and the system. Part of the channel (7), is in the form of an orifice (9) whose contraction coefficient for fluid flow in the direction from the system to the reservoir is less than for fluid flow in the reverse direction. The orifice has a cylindrical section which carries on into a conical or rounded entry on the side facing the reservoir. On the opposite side, it is surrounded by a conical, pointed wall which points away from a cross wall in the channel.
Patent DE-2552817-A1 (DE)
Title: Steep coal seam mining system - includes stand for tools and to link support units along face with dust sprays and spillage plates
Inventor: WIEBECKE WALTER
IPC: E21D23/00
Filed: 1975-11-25
Abstract: The mechanised coal winning and support system is for working seams lying between 45 and 90 deg. by means of overhead stowing and overtipped face. A stand (2) is releasably fixed between roofbar (5) and floor beam (4) of the support unit guide frame (1) and carries the mining equipment (3) and at the same time joins the support units and runs parallel to the face. The tools forming the system should be arranged in sequence, and the total length of the stand (2) should equal the total face length. The drives for the tool and for moving these parallel to the face should be mounted in housings (13, 14) secured to the main stand (2). Extensible spillage plates (21) for coal guidance should be fitted between stand and coalface and the stand should have a dust extractor and sprays.
Patent DE-2554746-A1 (DE)
Title: Device for working large agricultural areas - has twin inter connecting pivot drive devices connected to lateral beam
IPC: A01B51/02
Filed: 1975-12-05
Abstract: A device for processing of large surface areas of agricultural regions such as fields etc. has at least one processing or cultivating tool which is attached to a beam type support device which runs lateral to the direction of operation of the system, and carrying working tools such as ploughs, harrows, etc. The device is constructed such that the beam (3) has at least two pivotable drive elements (1,2) connected to each other in a direction related to the direction of motion of the system. These elements, which can be tractors, can be detached from the support beam, and a rapid coupling can be used. All operations can be controlled from a single control position.
Patent DE-2555178-A1 (DE)
Title: Domestic drinking water treatment - in tubular containers of various sizes in series for physical and chemical processing
Inventor: DULGER VIKTOR
IPC: C02F9/00
Filed: 1975-12-08
Abstract: Drinking water is treated by passing it through tubular containers which are connected in series and are joined to each other by hoses. Some of them are filled with a material such as activated carbon for physical processing, and others are filled with a material for chemical or ion exchange processing. This provides many possible permutations so that the treatment can be matched to the water supplied by the waterworks. A drinking water of excellent taste, partic. for prepg. tea or coffee, can be produced in all cases.
Patent DE-2600405-A1 (DE)
Title: Heated magnetic agitator for aggressive laboratory fluids - has aluminium ring covered with corrosion resistant chrome-nickel steel cap
Inventor: VOLLGOLD GUENTER ING GRAD
IPC: H05B3/68
Filed: 1976-01-07
Abstract: The hot-plate, for a magnetic stirrer or similar, has a resistance element embedded in a light metal ring. A pot-like cover, made of corrosion-resisting material with a large heat capacity, covers the top and outer periphery of the ring. The ring is aluminium or an aluminium alloy whilst the cover is made of chrome-nickel steel. The lip of the cover is bent over towards the ring axis and engages behind the ring. The aluminium ring is retained by a support ring. The support ring is fixed by spacers to the heat shield.
Patent DE-2602666-A1 (DE)
Title: HF heating device for homogeneous dielectric in liq. bath - with insulating tray bottom having varying height to achieve constant HF field over inter-electrode area
Inventor: KNOBBE KARL-HEINZ
IPC: H05B6/00
Filed: 1976-01-24
Abstract: The device is used for the high frequency heating of a homogeneous dielectric in a liq. bath using electrodes immersed in receptacles in the liquid bath. In order to achieve constant h.f field over the whole distance between electrodes (30,31), the insulating tray (20) bottom (21) height varies with the h.f field. The bath bottom rises in the direction of the counter electrode (31) connected to earth.
Patent DE-2621309-A1 (DE)
Title: Spring for making contact with pin - has flexible arms made in one piece with ring produced by bending strip
Inventor: STADLER HEINZ
IPC: H01R13/11
Filed: 1976-05-13
Abstract: The contact spring has a two opposite flexible arms (2, 3) forming the continuation of a ring (1) produced by bending a strip. Its inner dimensions are about equal to its height and greater than the greatest dimension of the contact pin (5). The flexible arms (2, 3) are slightly bent at their bases, and are generally straight, or elastically bent, as their ends are in contact with each other. The ring (1) is permanently mounted in a metallised hole of a circuit board or in a sleeve. The contact pin is inserted from the ring side.
Patent DE-2625357-A1 (DE)
Title: Cooling reactor core meltdown using concrete foundations - contg. shallow slits with large area giving good heat removal
Inventor: PEEHS MARTIN DIPL PHYS DR
IPC: G21C9/016
Filed: 1976-06-04
Abstract: A nuclear reactor, housed in a reactor building and resting upon a concrete foundation, has a number of slits in this foundation below the reactor core; the surface area of the internal faces of these slits amounts to a total much greater than the cross-sectional area of the reactor core. Pref. a number of inclined slits are disposed alongside one another, more specifically overlapping in the vertical direction. In the hypothetical event of a core meltdown, the slits provide receptacles for the molten material which is thus in contact over large surface areas with the concrete, enabling the heat to be rapidly and effectively conducted away. The spacing of the slits prevents a critical mass from forming. Since the concrete foundation is in any case necessary, the arrangement provides a very economical form of meltdown safety device.
Patent DE-2630519-A1 (DE)
Title: Halogen fire extinguisher jet - has internal part fitted with ring gap in external part with radial air inlet bores
Inventor: LEUTHNER GEORG
IPC: A62C31/00
Filed: 1976-07-07
Abstract: The jet is fitted on halogen fire extinguishers to produce a jet of halogen ambient air. The jet is fitted to the handle and trigger operated assembly with a dip pipe and is screwed into the cylinder containing the halogen. The jet (12) consists of an elongated cylindrical external part (24) with internal part (26) concentrically fitted into it. The external part is provided on its one end with a thread to be screwed in on the housing of the operating fitting. The orifice end (36) of the external part has a size which, after some distance towards the rear end enlarges and is provided with a tapping into which the internal part (26) is screwed in. The internal part (26) is cylindrical of equal diameter up to the point, where on o.d. increase occurs to accommodate the thread by which the internal part is fitted. The o.d. of the internal part is slightly smaller than the i.d. of the external part, so that between the two a ring gap (48) results which connects to a number of radial bores (40) on the external part. The bores serve for ambient air admittance to create the halogen air jet.