baber/WOPTO huggingface dataset:
Patent DE-2735736-A1 (DE)
Title: AC switching system with logic circuit - has threshold circuit and turn-on signal shaper in front of and behind logic circuit
Inventor: BARANIK JURIJ SEMENOVITSCH
IPC: H03K17/13
Filed: 1977-08-08
Abstract: The AC switching circuit turns its switch on when the AC voltage supply being switched passes through zero and turns it off after an integral number of waves have passed through the load. The threshold circuit(4) is coupled to the turn-on signal shaper(6) via a logic circuit. The logic circuit consists of a gate(13), two coincidence circuits(15, 19) and a trigger(25). The switching circuit control signal is applied via the input(22) of an inverter(21) to one coincidence circuit and directly to the input of the other coincidence circuit.
Patent DE-2746202-A1 (DE)
Title: Turbine drive unit powered by flowing medium - is incorporated in e.g. water irrigation line to generate power
Inventor: DEIERLING HEINRICH
IPC: F01D1/02
Filed: 1977-10-14
Abstract: The turbine housing has a tangentially arranged inlet pipe (2) leading into its bottom end and a similar outlet pipe leaving it. The housing comprises dish-shaped front and rear sections coupled together by e.g. bolts or welding. The inlet and outlet pipes are in a line with one another so that the flowing medium (water, air or gas) passing through them can strike the scoops or turbine blades (8) on the turbine wheel (7) which is mounted rigidly on a shaft (6) which is thereby driven by the wheel. The flowing water e.g. to be used for overhead irrigation can therefore be used to produce power via the turbine.
Patent DE-2749534-A1 (DE)
Title: Nut and washer for vehicle wheel clamping - are pressed together after coating with phosphate to prevent reduction of clamping force
Inventor: HERBST KLAUS DIPL ING
IPC: B60B3/16
Filed: 1977-11-02
Abstract: The screw connection has nut and thrust washer which cannot be lost. It is used especially for holding a vehicle wheel on a hub. The nut with thrust ring is machined after zinc plating to ensure correct and repeated clamping. The nut is coated with a phosphate coating after zinc plating before joining with thrust washer. This additional phosphate coating ensures that axial clamping force of the bolt and nut combination is maintained. The joining is achieved by pressing and deforming a projection.
Patent DE-2749702-A1 (DE)
Title: Shoe stretcher with spring loaded horn - has counter support fixed to outer end of long spring
IPC: A43D3/14
Filed: 1977-11-07
Abstract: A shoe horn (5) has a counter support fixed to the outer end of the spring and arranged on the shoe stretcher via the spring. The spring can be a spiral of flat spring. The shoe stretcher (1) spring (3) and shoe horn (5) are all of plastics metal. The shoe horn (5) points outwards and backwards at its arched side. There are breaks and holes (2) in the stretcher.
Patent DE-2750869-A1 (DE)
Title: Fitting for drilling boards for plugging together - has movable guides in slots in positioned angle piece
Inventor: WOLFF ROBERT
IPC: B23B47/28
Filed: 1977-11-14
Abstract: The auxiliary appliance, esp. in furniture making, i for drilling dowel plug holes in boards or other workpieces which are to be plugged together. This involves an angle piece (1) for fixing in position on the boards (25) which lie on top of each other with flush edges. This has shanks (6, 7) with slots (8, 9) in them, where guide pieces (2, 3) fitted with drill guiding holes (11, 15) can be slid along and screwed in position. The guide pieces may be detachable. This affords a wide range of applications, and is easily manipulated.
Patent DE-2814869-A1 (DE)
Title: Pedal switch for sewing, dictating and other machines - has top operating part which closes several contacts on its way down against stepped spring pressure
Inventor: SCHLUNK MANFRED
IPC: H01H13/16
Filed: 1978-04-06
Abstract: The switch consists of a lower part and an upper part serving as the operating element. There are control and switching elements releasing operational states, and terminals for the cable. The operating element (2) contact travels in one direction (42) for several consecutive switching processes, and its path is divided in several parts (41) to which at least one control or switching element is allocated. One or more springs (23, 24) are provided, whose force opposing the operating element down movement is increased in steps with the number of switching paths.
Patent DE-2816643-A1 (DE)
Title: Pulverised fuel burner for rotary furnaces - has mechanism varying nozzle discharge cross=section
Inventor: RUS KARL
IPC: F23D1/00
Filed: 1978-04-17
Abstract: The burner is for rotary furnaces, partic. for cement, calcium, gypsum and the burning of refuse. Its front part has a control mechanism, by which the cross-section of the nozzle discharge opening can be varied, typically comprising a section of tube (3) sliding in the lengthwise direction inside the conical nozzle (1). It can be combined with a central oil burner (4), with adjustable turbulence-inducting bodies for the primary air (5). The design is suitable for modern short furnaces.
Patent DE-2816759-A1 (DE)
Title: Counting device or different size coins - has sensor element deflected by coins and connected to mechanical counter shaft by ratchet
Inventor: HEINRICHS FRIEDRICH
IPC: G07D9/04
Filed: 1978-04-18
Abstract: The device has a channel and a transport device above it, which pushes the coins through the channel along a through side wall. A sensor (4) enters into the channel (1) through the side (3) opposite to the through wall (2). It is deflected by the coins in accordance with their size, and is mechanically connected with the shaft (12) of a mechanically operating counter. The mechanical connection is via a ratchet (9, 10) engaging a wheel (11) on the shaft. The ratchet is connected to a lever (6) carrying the sensor (4) and is spring-loaded.
Patent DE-2820721-A1 (DE)
Title: Plasticising ceramic masses with microbial polysaccharide - for higher plasticity and dry flexural strength
Inventor: SCHUBERT KLAUS DIPL CHEM
IPC: C04B33/18
Filed: 1978-05-12
Abstract: The plasticity and/or dry flexural strength of ceramic masses are improved by using as plasticizer a water-soluble or colloidally-soluble microbial polysaccharide (I) of mean mol. wt. >2 x 105, at 0.005-0.5% based on the material to be plasticized. Pref. (I) is Xanthomonas polysaccharide and may be added to one component of the mixt. of raw materials, or to a complete blend either as slurry, partly-dewatered material or as dry substance. Esp. it is added to a ceramic spray-granulate before or during conversion of the granulate to a processable form. Used. esp. for porcelain and earthenware mfr. No undesirable materials are produced from (I) during sintering and starting materials of poor plasticity can now be used.
Patent DE-2824729-A1 (DE)
Title: Injection mould esp. for multiple small mouldings - has heated inlet block with heat regenerator near surfaces which cool during contact with mould
Inventor: ANDO NOBUO
IPC: B29C45/27
Filed: 1978-06-06
Abstract: Injection mould with a relatively cooled mould block (20) in which the mouldings are formed operates with relative movement between these two blocks in order to make and break the communication respectively between the outlet gates of the heated inlet block and the inlet openings of the relatively cool mould block. During a portion of the time in which this communication is broken, the surfaces surrounding the outlet gates (13) are brought into contact with a gate temperature recovery block (30). Pref. the heated inlet block (10) and the relatively cool mould block (20) move relative to one another simultenously with the opening and closing movements of the mould. The formation of sprues and other waste material due to premature cooling is avoided.
Patent DE-2824827-A1 (DE)
Title: Roller press for fine salt - with specified speed, press force, feed and roller temp.
Inventor: BERGENDAHL HANS GEORG
IPC: C05D1/02
Filed: 1978-06-06
Abstract: Salts such as potash fertilizers or rock salt are pressed on roller presses which are driven in synchronism at peripheral speeds of 0.55-0.75 m/s and at a specific press force of >=4.5 tonnes/cm. The feed is charged at a temp. of >120 degrees C but the roller surface is kept to  below 80 degrees C. Fine particles which are suitable for mechanical spreading can thus be turned into scales which are then broken into the desired granule size of 1-4 mm. The new method produces raw material for granules of exceptionally good abrasion resistance.
Patent DE-2825984-A1 (DE)
Title: Shaft coupling operable while moving - has ring space filled with throttled vapour medium and divided by seals into variable work spaces during coupling process
Inventor: VOY CHRISTIAN DR ING
IPC: F16D25/00
Filed: 1978-06-14
Abstract: The coupling is for the operation of two components to be coupled whilst undergoing relative movement, as within a train of shafts, two shaft ends forming a ring space. This space is filled with a vapour medium, and is divided by seals on the two shaft ends into working spaces variable during the engagement process. Speed synchronisation is achieved by throttling the vapour medium flowing out of the working space. The ring space is formed by one shaft end being hollow and encompassing the other with clearance.
Patent DE-2827517-A1 (DE)
Title: Dynamic test appts. for highly elastic springs - has multiple links and dynamometer and regulator shaft to adjust force and stroke length
Inventor: FREUND HARTMUT DR ING
IPC: G01N3/00
Filed: 1978-06-23
Abstract: A frame (1) supports four-jointed coupling machinery consisting of a crankshaft (6), a coupling (7) and a link (8). A further link (21) provides a pivot point (4) that remains fixed w.r.t. the frame. The machinery also includes a coupling (9) and a connecting rod (10). The stroke length is adjusted by a regulator shaft (16), a bushing (17) and a drive (18) with an intermediate wheel (19) and a spindle (20). The spring under test (13) is held by a holder (12), and the force is adjusted by a dynamometer (15).
Patent DE-2829887-A1 (DE)
Title: Fireproof sealed wall bushing for cables - has cables enclosed by absorbent material that swells when treated with liq. for form solid front face
Inventor: BARGSTEN GUENTHER
IPC: F16L5/14
Filed: 1978-07-07
Abstract: The feed through has a hollow body (4). An absorbent material (1) is packed loosely around the cables, separating them from one another and from the inside surface of hollow body. Before the body is filled with casting compound, the external faces of the absorbant material, which forms the front face of the feed through are treated with a liq. that causes it to swell rapidly and solidify. The absorbent material is rendered noninflammable by treating with the liquid. The liquid is silica. The absorbent material is viscose.
Patent DE-2837331-A1 (DE)
Title: reciprocating drive for instant picture camera - has flexible foil to grip upper film pack through process rollers
Inventor: FAUTH GUENTER
IPC: G03B17/52
Filed: 1978-08-26
Abstract: The reciprocating drive for the exposed film packs of the instant picture camera uses a flexible foil (5) which is positioned over the pack and grips its far edge using a turned over edge (8). The foil passes through the rollers (3, 4) and is fitted with a grip bar (7) on the outside. The foil, with a cut-out for exposing the film pack, is suitable for flat pack magazines. It replaces complex servo drives by a simple system.
Patent DE-2842422-A1 (DE)
Title: Battery monitoring circuit sensing critical voltage level - has integrated circuit module with three LED's with common resistor and logic circuit
Inventor: TOEPFER HANS
IPC: G01R31/36
Filed: 1978-09-29
Abstract: The electronic battery voltage monitoring circuit, is used to measure and evaluate the critical voltage. It is used mainly on car batteries, which are particularly sensitive to these limiting voltages. The circuit consists of an integrated window discriminator module(1) linked to the positive terminal of the battery via three LEDS (2, 3, 4). The diodes have a common load resistor (5). There is a logic circuit between the common terminal of the dioes and the other battery terminal. The reference voltage of the battery is adjusted via a potential divider with a variable resistor (6).
Patent DE-2844039-A1 (DE)
Title: Floating aerator for liquids - with floating frame rotated by reaction opposite to direction of immersed impeller
Inventor: POEPEL FRANZ PROF DR ING
IPC: B01F7/16
Filed: 1978-10-09
Abstract: An immersed floating aerator for surface waters and liquids to be aerated in basins has a vertical impeller inside an air intake tube which is suspended from a spider resting on floats. The drive motor is also mounted on the spider. The reaction moment of the impeller causes the spider to revolve slowly in the opposite directions and to drag a chain loop, fixed to the floats, along the bottom. The circulatory and aeration action thus reaches all parts of the liquid-filled space uniformly. The new aeration system can be applied where the available space is extremely restricted and most not exceed the area of the aerator itself.
Patent DE-2849605-A1 (DE)
Title: Continual injection moulding - in which twin extruders feed twin moulds and the mouldings complete their cooling outside their moulds
Inventor: SUESS GEORG
IPC: B29C45/72
Filed: 1978-11-15
Abstract: Continual injection moulding is performed rhythmically using >=2 extruders, each having its own injection mould. When the first mouldings are injected and superficially cooled, they are at least partly ejected and then passed to stations where they remain while fresh polymers are injected into re-closed moulds and superficially cooled. System has a fixed platen at the nozzle side, a moving platen, two pairs of mould tools on the fixed platen and two nozzles. Each mould has a system to spray cool the mouldings before final ejection. The moving platen carries four mould closing tools. In a moulding cycle one pair lies opposite its mould tools while the other pair lies opposite stations. In the next cycle the second pair of mould closure tools lies opposite the mould tools. Continual prodn. of two different types of mouldings if desired. Short moulding cycles are obtd. simply.
Patent DE-2856600-A1 (DE)
Title: Automatic mattress conveyor unit - is used to move mattresses made from foam materials from stack to covering machine and includes jib with trolley and fitted lifting device
Inventor: ROESLER JOSEF R
IPC: B65G47/90
Filed: 1978-12-29
Abstract: The appts. is used to move mattresses made from plastics or rubber foam material from a stack into a mattress covering machine. The conveyor includes a jib attached to a stand on which a trolley has a moving bearing. A lifting and lowering device is fitted on the trolley which carries a support plate positioned horizontally which is equipped with at least two opposite rows of pins which are inclined towards each other or which are curved. The lifting and lowering device consits of a pneumatic or hydraulic stroke cylinder with attached piston rod movable downwards to which the support plate is attached.
Patent DE-2904379-A1 (DE)
Inventor: KORTE BERND ING GRAD
IPC: C04B7/44
Filed: 1979-02-06
Abstract: 1. Method of heat treating fine-grain material, in particular cement raw material, using a multistage cyclone preheater through which the exhaust gases of a rotary tubular kiln pass, high-sulphur-content fuel being introduced into a precalcination zone disposed in the lowermost region of the cyclone preheater and the entire combustion air required in the precalcination zone being supplied by the rotary tubular kiln, characterised in that the kiln exhaust gases are dedusted before entry into the precalcination zone at exhaust gas temperature and at least a portion of the dust precipitating is discarded.
Patent DE-2906856-A1 (DE)
Inventor: BECKER WERNER
IPC: B65C9/18
Filed: 1979-02-22
Abstract: A hand appliance for issuing or applying self-adhering labels which are stuck on a carrier strip is disclosed. The appliance has a feeding mechanism which withdraws the carrier strip to feed one label at a time. The feeding mechanism has a winding core on to which the carrier strip is wound and which is rotatable about a journal fixed at one end to a housing wall. The winding core is held for axial displacement on a boss which drives the winding core by means of a projection engaging a groove extending obliquely of a surface line of the boss such that the boss shifts the winding core under the tension of the carrier strip in the direction of the wall of the housing on which the journal is fixed to thereby maintain said winding core within the appliance when in operation and facilitate its removal when desired.
Patent DE-2910874-A1 (DE)
Title: Material inserting and conveying machine - has motor driven gripper unit moving between two end positions using pairs of linked levers
Inventor: STOLL KURT DIPL ING
IPC: B65G47/90
Filed: 1979-03-20
Abstract: Inserting machine with a gripper unit movable between two end positions and with a drive motor to drive the gripper. The drive motor actuates the gripper through a lever drive which has two levers having a linked connection with each other the axes of which line up with each other in both end positions. The drive motor is fitted to the table frame and includes a drive section with linear movement which itself has a linked connection with one of the two pairs of levers used in the lever drive system. The length proportions of the levers of the two pairs are equal.
Patent DE-2912006-A1 (DE)
Title: Air-jet massage bath mat - has sealed compression chamber forcing compressed air out through perforations
Inventor: FRENKEL WALTER
IPC: A61H33/02
Filed: 1979-03-27
Abstract: The grid or mat is for an air-jet massage bath, and it is made in several sections which can be taken apart. When the top and bottom parts are joined together the compression chamber is sealed so that the compressed air is forced to escape through the perforations. The two halves can be fixed to a flange or central section, and there are devices preventing them turning in relation to each other. The design allows easy cleaning and removal of bacteria, fungi etc.
Patent DE-2916104-A1 (DE)
Title: Tubular cooler for hot gas engine - has tubes arranged in ring with baffle plates for directing coolant transversely to tubes
Inventor: KIHLBERG YNGVE RAGNAR
IPC: F28D7/16
Filed: 1979-04-20
Abstract: The tubular heat exchanger is for use as a cooler in a hot gas engine. It has tubes (7) arranged in a ring, the inner dia . (d) of the ring being at least 25%, pref. 50%, of the outer dia. (D). Two baffle plates (11) coplanar and diametrically opposed, extend radially inwards through the ring of tubes from the walls (2). The baffles cause the cooling fluid to move transversely to the tubes.
Patent DE-2916464-A1 (DE)
Title: Hand held liquid pulsating flow generator for shower - operates off steady supply and generates pulses using rotor and port plate
IPC: F15B21/12
Filed: 1979-04-24
Abstract: A hand held fluid pulse generator, for use as a massage shower nozzle, generates pulsating flow from a steady input flow. The generator has a cylindrical body that contains a fixed nozzle plate, a rotor and a fixed output port plate. The blade section of the rotor has four impeller blades with an inclined face. Water from the inlet is directed onto the blades at an angle by the orifices in the nozzle plate. The bottom section of the rotor has four relieved sections that pass flow periodically to the output port plate.
Patent DE-2917276-A1 (DE)
Title: Easily removed dressing for warp yarn, esp. polyester - contg. PVA, quat. ammonium surfactant and softener
Inventor: REES RICHARD WATKIN
IPC: D06M13/322
Filed: 1979-04-27
Abstract: A dressing for a warp yarn consists of (a) 100 pts. wt. PVA with a degree of hydrolysis of 88-100 moles %, and a soln. viscosity of 5-50 (10-35) mPas., as a 4% aq. soln. at 20 degrees C, (b) 0.5-10 pts. wt. of an alkylphenoxy- or alkyl-cresoxy-ethoxyethyl dimethyl benzyl ammonium chloride, in which the alkyl is 2-12C, as cationic surfactant, and (c) 4-50 pts. wt. of a is not >8C polyol with is not >3 OH gps., or urea as softener. The dressing gives good adherence to polyester fibres, and is easily removed by water free from additives. Good (90%) weaving performance is obtd. There is little foaming during appln., and little formation of deposits on Jacquard looms.
Patent DE-2919445-A1 (DE)
Title: Resin concrete mouldings prodn. - using mould release agent contg. reactant for the resin
Inventor: HAEBERLE HANS DR
IPC: C04B40/06
Filed: 1979-05-15
Abstract: Resin concrete mouldings, e.g. of polyester resin with mineral additives, are produced in shell moulds coated with release agent e.g. oil, wax or film, contg. a substance which reacts chemically with the resin binder. Pref. the additive in the release agent participates in polymerisation of the resin, its reaction time with the resin being less than that required for hardening. Pref. it is a tert. amine, organo-metallic cpd. and/or organic peroxide, in amt. of >=1 wt.% esp. 3-15%. Adhesion to the mould is prevented, and the mouldings are easily removed without damage, well before the time required for complete hardening, giving increased output from the moulds.
Patent DE-2919751-A1 (DE)
Title: Combined heat pump and hot water boiler - is controlled for independent or parallel operation as consequence of detected water temp.
Inventor: WEISSE DIETRICH H
IPC: F24D11/02
Filed: 1979-05-16
Abstract: The combined heat pump (2) and hot water boiler (1) are both coupled to the same water circulation circuit, with ON-OFF switching controlled by temp. detectors monitoring the external temp and the water circulation temp. The heat pump (2) is only brought into operation when a given outside temp. is reached. The feed and return lines (1a, 2a; 1b, 2b) for both the heat pump (2) and the boiler (1) are directly coupled together with the temp. monitor (11) in the return line (2b) to the heat pump (2) switching on the latter independent of the operation of the boiler (1) when a given temp. is exceeded. The boiler is switched on for parallel or alternative operation by a further temp. monitor (12) the heat pump return line (2b) when the temp. drops below a lower threshold.
Patent DE-2921459-A1 (DE)
Title: Mine face working travel area protective screen - comprises extensible side-pieces with covered mechanism mounted on conveyor
Inventor: TRUSZCZINSKI HELMUT
IPC: E21D23/00
Filed: 1979-05-26
Abstract: Elements are supported on a mine working conveyor, in provision for screening the travel area from the coal-cutting and conveying area, in a sloping setting and/or on a heavy seam. The screening elements are in the form of sliding side-pieces, guided and supported so as to be extended and retracted on the sidewall by an extension device. Extension devices are in a covered position behind the sidewall, and are pref. thrust-piston gear units. There is pref. only one for each sliding side-piece. The screening mechanism is simple and robust, and is easily mounted on the conveyor sidewall.
Patent DE-2928558-A1 (DE)
Title: Portable multimeter with concentric switch and indicator rotor - has printed circuit board and snap-fitting housing parts
Inventor: HOCHREUTHER KARL
IPC: G01R5/06
Filed: 1979-07-14
Abstract: A multimeter consists of upper and lower housing sections contg. a printed circuit board and a discrete position rotary range switch. The range switch has a rotor of insulating material with contact bridges and stator conducting paths on the board. It is a portable meter enabling easy assembly without screws. Snap connectors only are used. It also enables a large indicator length to be incorporated in a compact housing. The upper housing is a support frame carrying the display on an intermediate plate and a tube concentric with the stator conductors filling in a circuit board hole. The rotor is a hollow cylinder fitting over the tube when the board is snap fitted into the upper housing.