baber/WOPTO huggingface dataset:
Patent DE-2924041-A1 (DE)
Title: Sub calibre ammunition for firing practice - has core inside prestressed glass cage shattered on impact by integral striker
Inventor: ROMBACH RUDOLF DIPL ING
IPC: F42B14/06
Filed: 1979-06-15
Abstract: Sub calibre ammunition for practice firing has a stem (2) with a pointed nose, with flights (4) at the rear, and enclosed by a cage (8) which transmits the forces of the ejection gases to the stem. The cage is screwed onto the threaded part (6) of the stem, and is made of prestressed glass which breaks into powdered fragments on impact. The cage has a hollow interior into which projects the nose (18) of a screw (14) mounted at the rear. The nose is attached by a narrow neck (16) so that it is detached on impact, to strike the glass part. An alternative design incorporates an explosive charge in the stem instead of using the impact nose. Another design is shell shaped, and encloses an impact nose as well as the stem.
Patent DE-2926212-A1 (DE)
Title: Lever operated chain drive for bicycle - has two freewheel drive cogs and uses weight of body for leverage
Inventor: HOFFMANN KURT DIPL ING
IPC: B62M1/20
Filed: 1979-06-29
Abstract: The lever operated bicycle drive has a chain drive linked to the rear wheel and driven by a lever pivoted between the ends of the chain and linked to the chain by two freewheel cogs. One cog operates on the pull stroke of the lever and the other on the thrust stroke, and with the cogs set over each other. The drive uses the weight of the rider, with the lever supporting the saddle. The freewheel cogs are set to freewheel in opposing directions. No other drive mechanism is required.
Patent DE-2926595-A1 (DE)
Title: Coupling for articulated all-terrain vehicle - has coupling ball on inclined shaft to spread shear forces
Inventor: SPEICH ANDREAS
IPC: B60G17/033
Filed: 1979-01-17
Abstract: A coupling for a terrain vehicle has the coupling balls on inclined shafts to spred the shear forces into horizontal and vertical components, with full socket bearings on the other part of the vehicle. The load is distributed on the vehicle by having additional wheels, on subframes, supported relative to the main chassis. The coupling links articulated terrain vehicles and provides an even towing force as well as even ground pressure. Additional servo arms link the sections to spread the loading.
Patent DE-2927529-A1 (DE)
Title: Coal stress sampling by wet drilling - involves flushing drilled material from holes inserted under saturation
Inventor: GROSSKREUZ HEINZ
IPC: E21B49/00
Filed: 1979-07-07
Abstract: The system is used to monitor the danger of subsidence in mining areas. It involves drilling small-calibre test boreholes, to indicate elimination of stresses in coal, esp. in moist coal face areas. Sampling boreholes are inserted in the coal, after release of tensions, by saturation or drilling. The drilled material obtained is conveyed out of the hole, by flushing with water, and assessed after trapping at the mouth of the hole. The process is simple and economical, and esp. applicable to subsequent samplings in saturated coal faces.
Patent DE-2927917-A1 (DE)
Title: Decompression valve for internal combustion engine - has dowel with clearance fit cylinder wall to prevent jamming from carbon build-up
Inventor: HINSBERG RENE
IPC: F01L13/08
Filed: 1979-07-11
Abstract: The engine has a piston (3) reciprocating in a cylinder (4). An opening (9) in the cylinder wall leads into a valve chamber (8) from which there is an air outlet (7). A spring (16) closes a valve (11) onto a seat in the chamber. It is opened away from the cylinder side to reduce the compression ratio at starting. The valve has a dowel (12) on its end. When the valve is closed the dowel fits into the opening (9) in the cylinder wall with a small clearance round it. This prevents the formation of a large pocket in which lubricating oil can collect and burn.
Patent DE-2930531-A1 (DE)
Title: Wave power driven generating unit - has rotating fabricated cylinder with blades shaped to face horizontal and/or vertical wave motion components
Inventor: SANDGAENGER KARL
IPC: F03B13/18
Filed: 1979-07-27
Abstract: The stationary power generating unit is for installation on the seabed. It comprises a fabricated cylindrical structure rotatably carried in bearings vertically adjustable in columns anchored on the seabed and provided with blades (15-17, 19-24) at wave level. the rotating structure drives one or more generators. The blades are shaped so that they have areas (19, 20, 21) which face the horizontal components in forward direction and/or the upward vertical components of the motion. They may consist of annular projections on the structure which have outwardly converging cross-section.
Patent DE-2946648-A1 (DE)
Title: End miller cutting tool for machining curved teeth - has trapezium profile with clearance faces ground in one operation by rotating tool
Inventor: WIEGAND ROLF
IPC: B24B3/34
Filed: 1979-11-19
Abstract: The tool arrangement produces the profile of a cutting tool used for milling curved teeth by means of an end milling cutter head. The tool comprises a shank (1) and a cutting portion (2) which latter has a symmetrical trapezium shape with a flat run-off face for the cuttings and clearance faces at tip and sides. All clearance faces are produced in one operation by rotating the tool about an axis (4) during grinding (by contoured grinding disc 3). The projection of this axis on the said flat face coincides with the symmetry axis of the trapezium (or these axes themselves coincide as shown) and is parallel to the longitudinal shank axis. The run-off face is a continuation of a flat face (5) on the shank and is not ground.
Patent DE-2947970-A1 (DE)
Title: Very thin non tearing wood veneer - is dried during sealing onto elastic hydrophilic layer with sealable glue coating
Inventor: SCHIEBER RUDOLF DIPL CHEM
IPC: B27D1/00
Filed: 1979-11-28
Abstract: The very thin covering veneer is sealed on a flexible underlay and cannot be torn or split. A freshly cut veneer between 0.2 and 0.5 mm. thick, is sealed, without being dried first, onto an elastic, consolidated, hydrophilous, gluable fibre layer, previously coated with sealable glue, with drying taking place at the same time. Moisture released by sealing on the veneer can be used to activate the glue, which may be heat-resistant up to 160 deg.C. Very thin veneers can be used in continuous form, without subsequent danger of tearing or breaking, even if bent over edges.
Patent DE-2948622-A1 (DE)
Inventor: GRAF RUDOLF
IPC: H01H33/915
Filed: 1979-12-03
Abstract: A tubular, moving contact piece (11) is surrounded by a blasting nozzle (27) which moves with it and is connected on the inlet side to the outlet (17) of a pump cylinder (19) which moves with it, can be displaced on a pump piston (21) that is supported in a fixed position, and contains extinguishing gas. The blasting nozzle (27) has a very narrow point (30), which is supported at a distance in front of the free end (12) of the contact piece (11) and is closed in the switched-on position of the switch by a fixed-position switching pin (35) which at the same time engages in the moving contact piece (11). The contact piece (11), which passes through the pump piston in a sealing displaceable manner, has blasting-out openings (16), which originate from its internal space (44), at a distance from its free end (12). In order that the extinguishing gas which is located in the internal space (44) as well as that in the pump cylinder (19) is precompressed at the start of the switching-off stroke, and in order that the extinguishing gas which is in consequence uniformly precompressed largely constrains the return flow of heated and ionised extinguishing gases directly into the pump space (22) at the start of the period during which the switching arc (45) is burning, the distance (41) between the blasting-out openings (16) and the base (18) of the pump cylinder (19) is shorter than the length of the switching stroke (40), while the thickness (43) of the pump piston (21) at the point (24) through which the moving contact piece (11) passes is of approximately the same size as the size (42) of the blasting-out openings (16), measured in the longitudinal direction of the moving contact piece (11). <IMAGE>
Patent DE-2949364-A1 (DE)
Title: Rotary cutter blade for lawn mower - has blades surrounding aerodynamic wing structure, leaving blade cutting edges free
Inventor: KOBER KURT
IPC: A01D34/73
Filed: 1979-12-07
Abstract: The rotary cutter blade is for a motor driven lawn mower and consists of a rectangular steel strip with bores in the middle region for fixing to the drive shaft and with cutting edges angled out of the strip steel plane. In a region (4) which projects above the cutting edges (5), towards the blade centre (3), but leaves the cutting edges free, the cutting blade (1) is surrounded by a casing (6) in the form of an aerodynamic vane. Its thickness decreases from the cutting edge side towards the opposite back side (11).
Patent DE-3002158-A1 (DE)
Title: Movie projector with fast rewind - has uncouplable sprockets automatically coupled to shutter and claw drive shaft for correct framing
Inventor: FLECK WERNER
IPC: G03B21/43
Filed: 1980-01-22
Abstract: The projector comprises a mechanism for fast film transport and film transport sprockets (7,11) which can be un-coupled from the film wind drive. The sprockets are coupled (28,27) to the shaft (23) which operates the shutter and the intermittent claw mechanism which coupling ensures correct angular relationship between this shaft and the sprockets and/or automatically restores incorrect relative position of the coupling halves (28,27). The film wind drive, which clears the film loop between sprocket and take-up spool, may be so arranged that its pull acts on the coupling (28,37) whilst its halves engage by friction only until their clutch portions (29,38) engage them in the correct relative position.
Patent DE-3011358-A1 (DE)
Title: Crankshaft esp. for automobile engine - has tubular plastics core fibre reinforced sleeve bearing rings and end cones
Inventor: SCHAEPER SIEGFRIED DR ING
IPC: F16C3/08
Filed: 1980-03-25
Abstract: A crankshaft for piston engines, esp. of automobiles, comprises a hose-type (tubular) elastomer plastics core (4), a composite layer (6) of fibres and resin outside the core, bearing elements (12, 14, 20) for the main and crankshaft bearings of composite material and end elements, esp. conical rings (28) bonded to the shaft. Pref. the tubular plastics core is mounted on a straight support piece, the composite material and bearing elements are then fitted onto this and, after the temporary support piece has been removed, the necessary cranked shape is produced. The crankshaft is lightweight and economical to construct.
Patent DE-3012471-A1 (DE)
Title: Machine for continuous washing of fabric web - has drip plate and filter to prevent clogging and stoppages
IPC: D06B3/20
Filed: 1980-03-31
Abstract: To apply a fluid treatment to a fabric, such as washing, by passing the material round a mesh drum immersed in the fluid to be forced through the fabric by differential pressure, there is a fluid drip plate (10) ranging as far as the fluid vessel (1). One side is at the fluid feed (12) while the other side is at a fluid trap. The equipment end of the drip tray (10) is shaped as a gutter (11) running across the working width, and there is a filter at the fluid trap in the form of a sieve trough. There is a sump below the filter. The fluid flow tube opens into the distribution vessel (8) and runs to the outlet side of the mesh drum (2) at the fluid catchment area (10,11), so that its end acts as a fluid feed (12). The design ensures that lint and debris does not clog up the equipment and incur stoppages.
Patent DE-3015245-A1 (DE)
Title: Prefabricated lightweight concrete mouldings - made from expanded inorganic aggregates, inorganic binder and foaming agent, and used for thermal insulation and fire protection
Inventor: MITTENDREIN HANNES
IPC: C04B38/10
Filed: 1980-04-21
Abstract: Foamed or expanded lightweight inorganic mineral aggregates(a) are mixed with a foamable inorganic binder slurry(b) to make a lightweight liq. concrete, which is foamed in a mould. The moulding is left in the mould to set, so it acquires an adequate green strength and can be removed from the mould. The green moulding is heated from the inside, pref. by a high frequency field, so it is hardened to a prescribed strength and/or moisture content, and is then at least partly dried. Heating of the moulding from the inside may be preceded by external heating causing partial hardening. The invention combines a low moulding density of 400-800 kg/cu.m, esp. below 500 kg/cu.m., with dimensional stability; high fire resistance and thermal insulation; and high strength, without using any organic binders. The mouldings do not exhibit shrinkage cracks, and are inexpensive to make using little energy.
Patent DE-3015962-A1 (DE)
Title: Inflatable balloon holder and illuminator - has rod-shaped lamp without optics, plug for balloon inflation and non-return valve coupled to tube from plug
Inventor: SZOLLMANN ANTON
IPC: G09F21/10
Filed: 1980-04-25
Abstract: The holder and illuminator device is suitable both for children's balloons and for large ones used for advertising etc. It enables not only inner illumination, but inflation of the mounted balloon for any number of times. It comprises a rod- shaped lamp without optics and an incandescent lamp, a plug for the free inflation aperture, with a non-return valve on the inner end. On the same end a small tube can be connected that extends from the free aperture of the plug. A tube extends approximately to the balloon centre and has a socket for the lamp. One end of an intermediate tube fits into the free outer aperture of the plug, while its other end has a connecting diameter for the rod-shaped lamp. An electric conductor is coupled to the lamp socket and ends in a socket for connection of the lamp battery.
Patent DE-3020070-A1 (DE)
Title: Draught excluder strip for car window - has clamping strip on outside of window frame
Inventor: SPLITHOFF THEODOR
IPC: B60J1/20
Filed: 1980-05-27
Abstract: The draught excluder strip for a car side window has a transparent plastic strip (1) to cover the gap when the car window is slightly opened. A clamping strip (8) in the front, bottom corner of the window has a groove (9) outside the window frame to locate the edge of the strip, while the rear edge of the strip is secured to the rear edge of the window frame by a simple clamp plate. The fitting does not encroach on the window slides (4) and allows unimpeded window action. The strip edge is shaped to hold the main part of the strip away from the window, for ventilation flow. The clamping strip at the bottom of the window can be the conventional chromed triangle of trim.
Patent DE-3022556-A1 (DE)
Title: Drawer with lock against accidental falling out - has swivel locking pawl holding drawer secure until activated on opening drawer
IPC: E05B65/46
Filed: 1980-06-16
Abstract: The drawer which is mounted on runners is fitted with a swivel-mounted locking pawl (22) whose locking hook (21) engages behind a stop locally fixed on the carcase when the drawer is pushed in. One part (31) of the pawl protrudes forwards over the front of the drawer to form an actuating member which is preferably located so that it is easily activated when the drawer is opened to disengage the locking pawl. In the active position this pawl effectively prevents the drawer from rolling out completely in the event of the supporting furniture item being knocked or tilted.
Patent DE-3030259-A1 (DE)
Title: Transparent liquid level or liquid-gas interface measuring arrangement - using absorption of electromagnetic beam at specific wavelength
Inventor: RAPP WILHELM DIPL ING
IPC: G01F23/292
Filed: 1980-08-09
Abstract: The arrangement is for contactless measurement of the level of a transparent liquid (4) or the boundary position (3) between two mutually insoluble transparent liquids of different specific gravity produce a measurement signal unequivocally indicating the type of medium (liquid or gas) in the measurement plane. They also indicate the presence of a boundary between transparent liquids or a liquid and a gas using the attenuation through absorption of an electromagnetic beam (So) passing from a source (1) to a receiver. The beam intensity attenuation occurs in a wavelength range corresp. to the medium through which it passes. A measurement beam (S2) of defined wavelength is filtered out of the beam (S1) leaving the container. The wavelength is selected according to the liquid or gas absorption characteristics. The menisus is converted to a flat surface by ultrasonic vibrations.
Patent DE-3043795-A1 (DE)
Title: Video amplifier overvoltage protection circuit - has reverse-biased diode connected between amplifier output and collector bias terminal
Inventor: HOEPFNER KLAUS
IPC: H03F1/52
Filed: 1980-11-20
Abstract: The circuit arrangement is for overvoltage protection of the end stages of transistorised amplifiers having their outputs connected to the electrodes of TV or oscilloscopes' CRTs and in danger of h.v. overshootsin the beam generating system. Thus, to protect such amplifiers, partic video amplifiers against h.v., a diode (D) is reverse-bias connected into the circuit between the amplifier output (A) and the collector bias terminal (VCC). A low inductance capacitor (C) is connected between the collector bias terminal (VCC) and the emitter reference potential (VEE).
Patent DE-3046560-A1 (DE)
Title: Hydrogen detector esp. for nuclear plant containment - has conductors embedded in silicone rubber resistant to heat and radiation
Inventor: SCHALLER HELMUT ING GRAD
IPC: G21D3/04
Filed: 1980-12-10
Abstract: A probe for detecting combustible gases, esp. hydrogen in a nuclear power plant, comprises two detector coils, connected into a bridge circuit and mounted in a housing; a connecting cable leads into this housing and is cast in plastics. The cable leads into the housing (2) through a conventional plug connecter (one component 15 is shown), the embedding plastics (27) is a silicone rubber, and the components (15) of the conventional plug is fixed to a metal plate (23) acting as closure for the housing. Pref. this metal plate (23) is screwed onto the basic housing (2) typically of stainless steel, through which a bore (3) passes; the space inside this bore between the coils (4,5) and the metal cover plate (23) is filled with the silicone rubber (27). Used esp. for detecting the presence of hydrogen in the containment building of a nuclear reactor in a fault case.
Patent DE-3049960-A1 (DE)
Title: Environmental heat ducting pitched roof panels - have water gutter and linking air channels formed into bottom overhang
Inventor: VAHLBRAUK KARL HEINZ
IPC: F24J2/00
Filed: 1980-05-02
Abstract: On sloping roofs, covering panels have air ducts, running from eaves turf ridge and connected to a heat-exchanger. The bottom part of the lower panels, with a horizontal water catchment gutter serving as eaves, is in the form of a roof overhang. Air-ducting channels are formed into this, opening out on its bottom face and leading into the air ducts. The panels bottom part is made of foamed ceramic material, with the gutter and channels formed into them. These can have a corrosion-proof coating. Warm air rising along the external wall is intercepted and conveyed to the ducts, for incorporation into the system.
Patent DE-3106221-A1 (DE)
Title: Spindle drive
IPC: F16H25/22
Filed: 1981-02-19
Abstract: In a spindle (screw) drive comprising a spindle (12) designed with a thread (14) and further comprising a spindle nut (16) which can be moved along the spindle and has a housing (18) and at least one ring (rolling bearing ring 20) which is rotatably mounted in the housing, surrounds the spindle and is tilted towards the spindle in such a way about a pivoting axis (24) perpendicular to the axis (22) of the spindle that the ring engages in the thread (14) at two points (C and D) offset by 180 DEG . In order to obtain backlash-free running of the spindle nut on the spindle, it is proposed that the cylindrical ring be provided, in the region of the two axial ends of its inner circumferential surface, with preferably conical contact surfaces (60, 62) inclined relative to the axis of the ring, which rest under a preload against correspondingly inclined flank surfaces (64, 66) of the thread (14). <IMAGE>
Patent DE-3108411-A1 (DE)
Title: Crab crane
Inventor: SANDMEYER ECKHARD
IPC: B66C11/18
Filed: 1981-03-06
Abstract: For a crab crane with a crab (15) which can be moved along a crab track (23) by the winding and unwinding of two traversing ropes (18, 20), a holding rope (21) run parallel to the rope path of both traversing ropes (18, 20) is provided for safety in the event of a traversing rope breaking. The holding rope (21) brakes and holds the crab by positive and frictional locking. <IMAGE>
Patent DE-3117107-A1 (DE)
Title: Simple, robust and inexpensive method of detecting inorganic pollutants in waste-water flows
Inventor: KOPPE PAUL DR
IPC: G01N33/18
Filed: 1981-04-30
Abstract: A description is given of a virtually maintenance-free and inexpensive method which makes it possible to trace points at which toxic waste water is discharged into the public sewer system. The earlier long-duration intensive investigations which were organised for this purpose are so expensive that they can be carried out only in exceptional cases. The novel method is based on the fact that selected granulated chemicals react with the inorganic toxic substances in the waste water in a slow reaction in such a way that they are enriched over a fairly long time. The amount of enriched toxic substances can be determined analytically and is correlated with the integral of the concentration (in the waste water) over the exposure time.
Patent DE-3117415-A1 (DE)
Title: Vehicle with two or more wheels and with chainless drive
Inventor: VOLKRODT WOLFGANG DR ING
IPC: B62M11/04
Filed: 1981-05-02
Abstract: Instead of the customary chain transmission, for example in a bicycle, from the pedals to the rear wheel, a double toothed wheel (1) which rotates around the bottom bracket bearing engages with a double-sided rear wheel rim crown gear (2) which is compression-moulded, for example from reinforced plastic. The space between the pedals (3), having a diameter of approximately 20 cm and a width of approximately 12 cm, is used to accommodate multiple speed-changing gears, freewheel and, if required, an auxiliary electromotive drive which can be coupled and activated. A special motor with axial air gap flux is suitable for this. Because of the requirement for cavities for the motor-transmission block and battery and for switches and instruments to be arranged on or in the handlebars, the use of reinforced plastic half shells for frame (4) and handlebars (5) is advantageous. In order to improve travelling comfort, the wheel forks are connected to the frame or handlebars by means of elastic and impact-damping elements (6, 7). The motor-transmission block according to the invention can be used alternatively in all-weather tricycles. <IMAGE>
Patent DE-3130729-A1 (DE)
Title: Dosing appliance and method for adjustable and self-regulating dispensing of carbon dioxide into stretches of water
Inventor: SOECHTING KLAUS DR
IPC: B01F3/04
Filed: 1981-08-03
Abstract: A dosing appliance and a method for adjustable and self-regulating dispensing of carbon dioxide into stretches of water are described, the dosing being effected by means of drop-wise addition of water as required to a mixture of a carbon dioxide-releasing substance, a solid acid and a hygroscopic substance, without undesirable chemicals passing into the stretch of water. The appliance according to the invention is suitable for setting and stabilising a carbon dioxide level in stretches of water, which is above the state of equilibrium with the atmosphere. <IMAGE>