baber/WOPTO huggingface dataset:
Patent DE-2650304-A1 (DE)
Title: Variable out-off frequency circuit for compander - has series and parallel RC circuits coupled to amplifier depending on direction of attenuation charge
Inventor: SCHROEDER ERNST DIPL ING
IPC: H03G5/04
Filed: 1976-11-02
Abstract: The variable cut-off-frequency circuit, for a compander, has its cut-off frequency (separating regions of high and low attenuation) capable of being displaced depending on amplitude. A resistor (8) in parallel with a capacitor (9) forms the negative feedback path of an amplifier (4). A variable resistor (10) in series with a second capacitor forms a series circuit that connects one input of the amplifier to a reference potential. This is for attenuation/frequency characteristics that change from a region of high attenuation to one of low attenuation. For characteristics that change from low to high attenuation the RC feedback circuit is coupled in series with the amplifier's output - a single resistor then forming the feedback - and the series circuit is connected to the output of the RC circuit.
Patent DE-2655678-A1 (DE)
Title: Refining composition - for the removal of sulphur and phosphorus from liquid iron in the ladle
Inventor: JAROSLAVCEV JURIJ G
IPC: C21C7/00
Filed: 1976-12-08
Abstract: The refining compsn. for the removal of S, non-metallic inclusions, and also P from iron melts, contains Fe ore or Fe sinter apart from an Al contg. components, Na nitrate, Ca oxide and Ca fluoride,. Pref. the slag is composed of (wt.%) 8-20 Al contg. component, 15-25 Na nitrate, 5-17 Ca fluoride, 10-45 Fe ore or sinter, balance Ca oxide. The compsn. forms a slag and reduces both the S and P content of the Fe melt, and does not require the use of an electric furnace for the production of the refining agent.
Patent DE-2703078-A1 (DE)
Title: Polyolefin-polystyrene laminated sheet or film prodn. - using adhesive film consisting of mixt. of ethylene!-alkyl:acrylate! copolymer and styrene! copolymer of the same ethylene! copolymer
Inventor: MUELLER-TAMM HEINZ DIPL CHEM D
IPC: C09J7/10
Filed: 1977-01-26
Abstract: Laminated polyolefin/polystyrene sheet and film is made using an adhesive comprising a homogeneous mixt. of (a) 50-90 wt. % of a 2-50:50-98 ethylene/acrylic acid 1-8C alkyl ester copolymer with a melt index of 0.1-100 g./10 min., (b) 10-50 wt. % of a styrene copolymer made by polymerising styrene monomer dissolved in a copolymer (a), at 50-100 degrees C. in the presence of a free radical catalyst such as an organic peroxide or AIBN, and opt. (c) 0-20 wt. % supplementary polystyrene with a melt index of 1-20 g./10 min. and a molecular wt. (from the soln. viscosity) of 200,000-300,000. The adhesives give excellent interlaminar adhesion in polyolefin/polystyrene laminates, so that e.g. deep drawing of sheets is possible without causing separation of the layers.
Patent DE-2728040-A1 (DE)
Title: Projectile for pistol or long barrel gun - has front distortion recess with reduced wall thickness covered by cowl which separates on firing
Inventor: KNAPPWORST JUERGEN
IPC: F42B10/34
Filed: 1977-06-22
Abstract: The firearm projectile has an axial through passage shut off by a front protecting cowl, which is separated from the projectile on firing and emerges with it from the barrel. The projectile has a front distortion recess (5) leading from the front face and covered by the cowl. The wall thickness of this recess is appreciably less than at the axial passage (3) which follows it. The recess may be cylindrical or of truncated-cone section, and there may be a transition zone between it and the passage, with a boss to hold the cowl in place, preferably by friction.
Patent DE-2731194-A1 (DE)
Title: Dustproof panels for use in quarries - have edges provided with seals formed by angle irons with abutting faces made of rubber with coating of PTFE
Inventor: IRRESBERGER HERMANN
IPC: E21D23/06
Filed: 1977-07-09
Abstract: Dustproof partition wall panels capable of preventing ingress of health endangering fine dust particles have the edges provided with movable seals formed by angles whose shanks are guided for relative movement in rebates and spring biased away from the edges. The other shanks are provided with elastomeric seals composed of a lower layer of rubber and an outer layer of Teflon (RTM) on account of its low coeff. of friction.
Patent DE-2736490-A1 (DE)
Title: Low boiling gases purification - by condensation, reheating and adsorption
Inventor: PETERSEN KONRAD ING GRAD
IPC: F25J3/08
Filed: 1977-08-12
Abstract: Low-boiling gases (helium, hydrogen, neon) are purified by removal of higher boiling impurities. The greater part of the latter is separated by condensation. The gas is reheated after the condensation cycle and the remaining impurities are removed at room temp. by adsorption.
Patent DE-2746907-A1 (DE)
Title: IC engine exhaust gas reverse scavenging unit - has combustion tube with holes in almost entire surface for passage of exhaust gases and air flow
Inventor: LEISTRITZ HANS KARL DR
IPC: F01N3/26
Filed: 1977-10-19
Abstract: The reverse scavenging combustion chamber is used for the exhaust gases of i/c engines, and involves an after burner chamber (25, 26) located around a combustion tube (10) already supplied with additional air. The combustion tube (10) has holes (11) in its wall through which a part of the exhaust gases and air flow fed from the combustion tube mixture area (9) can pass. This occurs without coming into contact with the reverse walling (24) or counterflow part of the reverse scavenging area (13), and the major part of the combustion tube walling contains the holes (11) mentioned.
Patent DE-2752074-A1 (DE)
Title: Automatic electronic dialling unit - has programmable store for subscriber numbers controlled by keys through microprocessor
Inventor: FISCHER UDO
IPC: H04M1/27485
Filed: 1977-11-22
Abstract: The device is intended for telephone instruments and teleprinters with a built-in programmable store for complete subscriber numbers. The stone is programmed through a program keyboard and its contents read as often as required in response to subscriber operation of a key. The store delivers dialling pulses at its output. The store is controlled by the keys through a microprocessor. A pause key may be included in the program key field to program a pause of predetermined duration between two dialling pulses.
Patent DE-2757572-A1 (DE)
Title: Centrifugal pump for dishwashers - circulates wash fluid from sump without excessive suds or reduced pressure and incorporates air return passages
Inventor: HESTERBERG BERND
IPC: A47L15/42
Filed: 1977-12-23
Abstract: The disc (10) of the rotor (7) which is mounted remote from the inlet opening (15) as well as the wall (23) of the pump housing (14) which covers the rotor are each provided with at least one aperture (21, 22, 24). They provide a flow path which emanates from the inlet opening (15) and passes through the disc and housing so that a considerable part of the air brought into the pump with the wash fluid can escape back to the wash container. The apertures are preferably set near the axis of the disc and housing wall so that in this part of the pump the forces bearing on the wash fluid and air carried along therewith are comparatively light so that the air is separated off. Although foam is produced the pump acts at a sufficiently high pressure without any increased water consumption.
Patent DE-2801593-A1 (DE)
Title: Seat belt lock mechanism - has locking parts arranged to make necessary releasing force unaffected by amount of belt tension
Inventor: ERNST HANS-HELLMUT
IPC: A44B11/25
Filed: 1978-01-14
Abstract: The operating parts of the seat belt lock are arranged in such a way that the pre-determined releasing force applied on the release push button remains constant regardless of the seat belt tension. The lock mechanism consists of slide-in plate (10) and lock part (11). The mechanism also contains push button (12) for the manual release with shoulder (13) and a projection (14). The push button is operated by finger pressure against the force of spring (15) and a further spring (16) is provided for ejecting the plate (10) after release. The locking engagement between the plate (10) and the lock part (11) is achieved by the locking element (17) operating as a gliding block. The blocking element is movably fitted in a triangular recess (19) in lateral direction to the locking plate slide-in direction.
Patent DE-2802396-A1 (DE)
Title: Animal feed mixt. contg. proteolytic enzyme - and antibiotic of tetracycline type (NL 24.7.79)
Inventor: HILLER GUENTER DIPL CHEM DR
IPC: A23K20/189
Filed: 1978-01-20
Abstract: Animal feed based on carbohydrates, protein, fats and opt. other additives additionally contains 1-250 ppm tetracycline, chlorotetracycline or oxytetracycline, and enough proteolytic enzyme (I) to provide an activity of 0.05-2.5 m TU/g. (I) is esp. an acid protease active within the pH range 2.5 - 6.5. Used for feeding poultry, pigs, calves etc.. This combination of additives further improves the growth rate.
Patent DE-2806348-A1 (DE)
Title: Cable or pipe trench sand filling machine - has length adjustable worm gear conveyor in external pipe on demountable hopper
Inventor: WALDEIER WALTER
IPC: E02F5/22
Filed: 1978-02-15
Abstract: The process is for sanding-up trenches made in the earth for pipe ducts and cables, using a machine. A hopper is built onto a tracked or wheeled loading vehicle, with bolts providing ready dismantling. In the bottom there is a conveyor wormgear to deliver sand to the trench, running outside in a pipe or tube, and extensible or retractible, according to the distance from the trench, by flange screwing. The length of the pipe is similarly variable, and it has end flanges fastened with wing screws. A hydraulic moto provides drive, and revolution speed for the conveyor is controlled from the driver's cab. This saves heavy manual work in trench filling.
Patent DE-2822589-A1 (DE)
Title: Second order balancing for IC engine - has contra-rotating shafts arranged one within other and carrying detachable weights
Inventor: PIECH FERDINAND DIPL ING
IPC: F02B75/18
Filed: 1978-05-24
Abstract: The balancer counteracts free mass forces and torques, particularly second order ones, in a piston-type internal-combustion engine. Two contra-rotating balance shafts are parallel to the crankshaft and driven at twice its speed. One of the balance shafts (14) is hollow and the other one (9) extends coaxially through it. The balance weights (20) on the inner shaft can be mounted outside the area covered by the shorter inner shaft and one at least of them can be detachable. The outer shaft can be driven from the inner one via a gear train (21) inside the engine crankcase (4).
Patent DE-2822608-A1 (DE)
Title: Hand disinfecting solns. for use before operating - contain 2,4,4'-tri:chloro-2-hydroxy di:phenyl ether, ethanol, isopropanol and water
Inventor: BANSEMIR KLAUS DR
IPC: A01N31/16
Filed: 1978-05-24
Abstract: Solns. contg. 0.5-1.5 wt.% 2,4,4'-trichloro-2'-hydroxy-diphenyl ether (I), 40-50 wt.% ethanol, 20-30 wt.% isopropanol and the remainder water are used to disinfect the hands before putting on operating gloves. The residual bacterial count is very much reduced compared with known solns.
Patent DE-2823673-A1 (DE)
Title: Mining conveyor power unit torque support member - has lower rib fitting between upper flanges parallel to shaft
Inventor: POHLE HELMUT
IPC: E21F13/02
Filed: 1978-05-31
Abstract: The torque-reaction member is for the power unit of a continuous belt or similar conveyor, partic. for mining. The unit is mounted outside the housing in which the belt driving drum is accommodated and at right angles to the drum shaft, and supported at the rear on a base frame crossmember. The torque-reaction member consists of an upper section fixed to the power unit and with two vertical flanges (4) parallel to the motor shaft and spaced apart, between which the rib (13) of a lower section fits. Rib and flanges are detachably secured together by a bolt passing through holes in each, and the rib has a transverse bottom plate, to which clamping lugs are bolted.
Patent DE-2828099-A1 (DE)
Title: Surgical appliance for immobilising a joint - comprises two lengths of communicating tubular knit fabric pref. packed with hard-curable polyurethane foamable compound
IPC: A61F13/06
Filed: 1978-06-27
Abstract: Bandage for fixing 2 jointed parts esp. for placing a person's or animal's limbs e.g. foot/lower leg or lower leg/thigh or upper arm/forearm, into a rest position, so as to keep these limbs at a pre-determined angle w.r.t. each other whilst preventing swivel motion, is claimed. The bandage comprises two sections of tubular knitted fabric connected together at an angle so that their interiors are open towards each other and define a chamber adapted to receive a fixing material. When the chamber has been packed with still-deformable material then the sections can be pivoted into the intended fixing position and the packing is then hardened. The sections are connected by welding, stitching or glueing. The packing is suitably a foamable polyurethane compsn. that hardens to an inelastic mass.
Patent DE-2841559-A1 (DE)
Title: Coal refining jig - with superimposed high-frequency positive pulsations on basic pulsations
IPC: B03B5/20
Filed: 1978-09-23
Abstract: Coal or similar minerals are refined in a water-filled jig by applying, to the water, jigging basic pulsations with superimposed positive pulsations. The latter are applied not to the negative halves of the basic pulsations but only as ripples to the positive halves. The result is a good precise sepn. between coal and stone, even with particle sizes of charge of 0.5 mm. The jig can be designed for a shorter length, i.e. more compact.
Patent DE-2846740-A1 (DE)
Title: Cuvette with tempering cover - has measuring chamber with input and output windows extending along its length in parallel
Inventor: MAYER PETER
IPC: G01N21/03
Filed: 1978-10-27
Abstract: A cuvette has a tempering cover suitable for photometric and/or spectral-photometric measurements. The measuring chamber has input and output windows for the beam to be measured. The windows extend along the length of the chamber and face each other in a plane parallel arrangement. The other side walls, also facing each other in parallel, form the tempering cover. At least one electrical, flat heating element (6) is inserted in the cuvette walls (4, 5) for tempering. In one embodiment, a single heating element is used but it extends from one wall to the other via the base so that it has a roughly U-shape. The heatable side walls (4, 5) can have groove-like recesses (9) to receive the heating element (6). After insertion of the latter (6) the recesses are sealed by closely-fitting glass covers (10).
Patent DE-2847781-A1 (DE)
Title: Fixing plastic bristles to plastic brush back - by fusion welding appts. with continuous bristle feed clamps and heater block
Inventor: BERGMAN JOHN E
IPC: A46B3/06
Filed: 1978-11-03
Abstract: Plastic bristles are secured to a plastic brush back by fusion welding. The two are engaged simultaneously with opposite sides of an interposed heating block before being brough together. A machine for the purpose includes a back holder and a holding arrangement for aligning continuous bundes of bristles with their ends presented to the block. No drilled holes in the back are needed. Use of glue, nails or the like is avoided. Mfr. is simplified. The appts. is effecient.
Patent DE-2848346-A1 (DE)
Title: Domestic boiler combustion system with air filter - has releasable airtight casing around burner and blower with filter at inlet end
Inventor: BARON HERBERT
IPC: F23D14/46
Filed: 1978-11-08
Abstract: The combustion system containing an oil- or gas-fired high-pressure burner which operates with suction of ambient air. It comprises a tubular casing of suitable size and shape to enclose the burner and blower assembly, having at one end U-frames around three sides to hold a conventional filter pad. At the other end are securing elements for airtight, yet easily removable fitting burner assembly. The elements may be magnets secured (e.g. by gluing) to the casing, or bolts screwed into a boiler casing whose heads engage suitable e.g. a bajonet-joint type, openings in the casing.
Patent DE-2849041-A1 (DE)
Title: Sailing surfboard with steering control - incorporates foot-operated turntable for pivoted centre-board
Inventor: MAHLA ECKEHARD
IPC: B63B35/79
Filed: 1978-11-11
Abstract: The modified windsurfer has a turntable (6) set in the rear of the board which is connected to a steerable centreboard or rudder (7). The operator stands on the turntable and is able to trim the craft by altering the centreboard setting about a small angle to each side, while keeping hold of the sail and mast. The design provides a high degree of stability and control. The standing area at the rear of the board is set slightly lower than the rest of the board. Buoyancy hulls (3) are set under the board on each side for improved support.
Patent DE-2902734-A1 (DE)
Title: Universal mounting for sun visor - has flexible arm for positioning around driving position
Inventor: LEPPER WILHELM DR ING
IPC: B60J3/02
Filed: 1979-01-25
Abstract: A flexible mounting for a sun visor has a small area visor fitted under the roof above the driving position on a flexible or jointed arm. It can be positioned around the head of the driver in a number of ways for shade, without restricting the driving view unduly. The flexible mounting prevents injury in collisions and enables the visor to be stored out of the way under the roof lining. A centrally mounted visor serves both front seats.
Patent DE-2904984-A1 (DE)
Title: Test instrument measuring spectral sensitivity of photodetectors - scatters light evenly via measuring sphere with quasi-ideal reflecting internal coating
Inventor: BLAZEK VLADIMIR DR ING
IPC: G01R31/26
Filed: 1979-02-09
Abstract: A test instrument measures the spectral sensitivity of photo detectors. It consists of a device to produce a quasi-monochromatic light beam whose wave-length can be adjusted. There is a light distributor which scatters the light evenly on the detector specimen and onto a detector of known spectral sensitivity. The light distributor consists of a photometric measuring sphere (9) which integrates the beam. It has a quasi-ideal reflecting and scattering internal coating (10) and an entry hole (12). There are different size holes in the wall (11) for mounting the test specimens and the standard detector. The light is transmitted to the entry hole via a flexible light conductor (8).
Patent DE-2906511-A1 (DE)
Title: Stainless steel valve seat ring - formed from deep:drawn U=section sheet with upset annular foot expanded into recess in valve bore
Inventor: PLATTES CLEMENS
IPC: F16K25/00
Filed: 1979-02-20
Abstract: The stainless steel pipeline valve seat ring is pressed into the valve seat opening. It initially has a radially inward annular foot projection which, on fitting, is expanded radially outward when its deformation fills an annular recess in the seat opening. The ring is formed as a deep-drawn sheet metal ring with U-section having the foot projection formed by upsetting. Before insertion, the upright walls of the U-section may be inclined to facilitate insertion. A layer of poly-tetrafluoroethylene, graphite or the like may be interposed between the uprights and exposed by subsequent machining of the seating face.
Patent DE-2914322-A1 (DE)
Title: Overload monitoring circuit for synchronous electrical machine - measures phase lag or lead then detects jump in position of voltage vector to disconnect machine from supply
Inventor: SCHMITZ WERNER
IPC: H02H7/08
Filed: 1979-04-09
Abstract: The circuit measures the phase lead in the case of a generator, or the phase lag in the case of a motor, relative to the network voltage, to detect a jump in the position of the voltage vector. A signal is supplied when such a jump is detected for interruption of the connection between the machine and the supply network. The circuit allows rapid detection of interruptions in the mains voltage and allows disconnection of the machine within an interval of less than 100 milliseconds.
Patent DE-2915022-A1 (DE)
Title: Central heating system for apartment building - has storage tanks on each floor of building connected consecutively to boiler or heat pump
Inventor: BROCKERHOFF HEINRICH ING GRAD
IPC: F24D19/10
Filed: 1979-04-12
Abstract: The heating system has its storage tanks located so that there is one in each apartment in the medium or high rise building. A common heat pump (8) may be connected to each storage tank (5) instead of the boiler (1). The heat pump's electromotor is connected to the mains supply in a cyclic manner synchronised to the control of the storage tanks. The storage tanks in the partments are paired with storage tanks (11) in the basement of the building. The basement storage tanks can be connected selectively via a solenoid valve (10) to the heat pump.
Patent DE-2915391-A1 (DE)
Title: Adjusting valve on liq. gas appts. - has O=rings forming seals for inlet plug and outlet nozzle
Inventor: STEIN HARRY
IPC: F16L37/00
Filed: 1979-04-14
Abstract: The adjusting valve is partic. for an appts. using liquefied gas. It has a plug fitting in the inlet union and a nozzle inserted in the outlet, both with a device to secure them in place, and a seal. The seal (8) on the plug (6) or nozzle comprises one or more rubber or plastic O-rings (10) accommodated in a mounting on them (11), and bearing against a mating face (12) in the union (2). The securing device consists of a pin (13) engaging tangentally in a peripheral groove (14) in the plug or nozzle.
Patent DE-2924959-A1 (DE)
Title: Low current cable drum for wall mounting - provides automatic rewind controlled by lever extension on enclosing cover
Inventor: STEINMUELLER KURT
IPC: H02G11/02
Filed: 1979-06-21
Abstract: A typical application for the proposed wall mounted cable reel is for an extending lead for an electric razor point. The reel and its winding mechanism are mounted on a standard socket outlet face plate (18). The razor socket (9) is permanently attached to the cable (8), and when not in use, all the components are covered by a lid (20) on the face plate. To unwind the cable the lid is partially raised and the cable withdrawn against the action of a ratchet which prevents rewinding by a spring (11,12) attached to the reel. After use the lid is fully opened (20"). A lever (22) on the lid disengages the pawl (17) on the ratchet allowing the spring arrangement to rewind the extended cable onto the storage drum (7). Drum axis and lid hinge axis are parallel.
Patent DE-2927957-A1 (DE)
Title: Fibrous waste water extraction - has pressure against waste on vibrating mesh before removal
Inventor: TRAE JOSEF DIPL ING
IPC: D21D5/04
Filed: 1979-07-11
Abstract: As the coarse matter and impurities, in the fibrous slurry, moves along the vibrating mesh (2), pressure (6) is applied to force out the water. Pref. there is a plate (6) lying on the matter, applying its own weight to it, so that it forms a tapering gap towards the outlet and a wide inlet towards the direction of matter inflow (3). The system ensures that the water content of the waste matter is reduced, so that it can be carried away by the conveyor more easily.
Patent DE-2927985-A1 (DE)
Title: Swimming pool sectioned rolling covering shed - has height adjustable walling piece on outside of rear section
IPC: E04B1/343
Filed: 1979-07-11
Abstract: Two or more rollable shed-type lengths can be telescopically rolled one above the other from a closing position, covering the pool, into a storage position. The system is esp as used where there are divin platforms or similar elevated structures. On the outer transverse side (26) of the shed length, sited at the rear in the open position (12), there is a height-adjustable wall section (28,36) which can be stored in front of, or behind, the top fixed wall section (26). The height-adjustable section is pref. as wide as the open width of the shed length. The cover system enables the pool to be used either as an indoor or an outdoor pool.