baber/WOPTO huggingface dataset:
Patent DE-2709972-A1 (DE)
Title: Double loudspeaker with one moving coil drive system - has two oppositely directed conical membranes linked by rod passing through hollow magnet pole
Inventor: LEPPER WILHELM DR ING
IPC: H04R1/28
Filed: 1977-03-08
Abstract: The loudspeaker has a cylindrical coaxial magnetic pole passing inside the moving coil at one end. Its other end extends round to form a further pole face on the outside of the coil ---i.e. to form the air gap in which the coil moves. The coil (3) is fixed to one conical membrane. The cylindrical coaxial magnetic pole is hollow and contains an axially movable aluminium rod that connects the apex of the membrane to the apex of a second conical membrane on the other side of the unit. The unit therefore uses only one drive system to radiate sound in opposite directions.
Patent DE-2715659-A1 (DE)
Title: Filling blasting holes with particulate explosive - by lowering hose to bottom of holes, filling with explosive and raising hose progressively
Inventor: RIEGELMAYER PETER DIPL ING DR
IPC: F42D1/10
Filed: 1977-04-07
Abstract: Bore holes are loaded with particulate explosive by first lowering a hose (I) t the bottom of the hole and then lifting the hose out of the hole as the hole is filled with the explosive. Method is used in blasting creviced or water logged rocks. Expensive cartridge chargin si dispensed with. Particulate explosive si prevented from being dissipated in crevices or rendered innefective by water. Pref. the hole is first lined with a hose (II) which is closed at its lower end and the hose (Ie is then lowered into the hose (II) which is distended by blowing air at a pressure of C 2 to 0.k bar and then filling with the explosive. Alternatively the explosive may be used for lateral expansion of the hose (II). Hose (II), which is anchored at ground level by means of bushing may consist of a polyethylene foil.
Patent DE-2722397-A1 (DE)
Title: Adjusting semiconductor slice for exposure - using inductively coupled probe needle dropping into location mark and giving meter indication
Inventor: HUNDT ECKART DR PHIL
IPC: G03F9/00
Filed: 1977-05-17
Abstract: Adjusting method is for a semiconductor slice for exposure under a mask by X-ray photolithography. The semiconductor slice (1) with a silicon dioxide layer (2) is mounted on an adjustable table (4). The silicon dioxide is indented with one or more locating marks (3) so that one or more needles (6) can drop into them upon correct alignment. A spring (8) ensures a positive drop so that the ferromagnetic segment (10) on the needle shaft (5) moves relative to the induction coil (9) to indicate location on the meter.
Patent DE-2728157-A1 (DE)
Title: Display of numbers formed in seven segment format on tape - has tape moved at controlled rate past display window and has punched hole control system for display cycle
Inventor: WAGNER HEINZ-GUENTER ING GRAD
IPC: G09F11/28
Filed: 1977-06-20
Abstract: A continuous band display allows for numbers to be represented as seven segment elements. The continuous band loop (61) has the seven segment number sequence represented in a predetermined chain. The band is driven (62) by an electrical motor (72) in such a way that the sequence of numbers are displayed (66) for a predetermined period within a window. The display cycle is controlled by punched holes (68) that are read by a sensor bank (69) to control the motor.
Patent DE-2728587-A1 (DE)
Title: Machine tool support control system - has axial and cross-slides brought into end limit positions with each indexing operation
Inventor: KRAUSE DIETER
IPC: B23Q16/00
Filed: 1977-06-24
Abstract: The control system is for the cross-slide support of a machine tool having lengthwise and cross-slides indexed into pre-programmed positions. It has an adjusting mechanism (8, 9) bringing the lengthwise and cross-slides (3, 4) into an end position with each indexing operation. Stops are indexed forward with each operation to limit the return movement of the slides. These comprise main (13, 13') and auxiliary (14, 15) stops. One or both slides can have main stops, which after completion of a machining operation come up against auxiliary ones which are adjustable and change with each operation.
Patent DE-2732795-A1 (DE)
Title: AC detector for hot-cathode fluorescent lamp - detects failure to trigger by monitoring transformer secondary voltage
Inventor: LINGNER HEINZ-DIETER
IPC: C07D253/06
Filed: 1977-07-20
Abstract: The AC current detector is for a hot-cathode fluorescent light. It has a transformer (TR) with its two primary windings (I, II) connected in series with the heating filament of the light and wound in opposition such that when a heating current is flowing no voltage is induced in the transformer secondary (III). When the light (R) ignites, a detechable voltage appears across the secondary. A timing circuit is connected to the secondary winding and disconnects the supply from the eight after a given time if no secondary voltage is detected, indicating failure to ignite.
Patent DE-2734472-A1 (DE)
Title: Finish rolling mill for continuous strip - has coiled strip guides and coil end benders facilitating threading
Inventor: KLEIN DIETER
IPC: B21B39/08
Filed: 1977-07-30
Abstract: The finishing roller mill is used for rolled strip. This stand has strip coils on entry and exit end and drives for maintaining the tension in the rolled strip. The tension rollers guide the strip in S pattern by means of guiding rims. Strip end is readily threaded into the roller system and it can be also used for thick strips. Each driving arrangement has in the running direction of the rolled strip a strip start bending back arrangement. The driving arrangement on the inlet side of the stand had bending arrangement for the strip end consisting of a hinged flap which acts in conjunction with the pressure exerting rill at the end of the S arc.
Patent DE-2734885-A1 (DE)
Title: Welding shield vision protection system - has acrylic! resin coating on protective discs in front of lenses for spark protection
Inventor: GRUMME KARL
IPC: A61F9/06
Filed: 1977-08-03
Abstract: To protect the eyes of a welder during electrowelding operations, goggles, shield, hood or mask is especially treated to prevent sparks sticking to the glass or lenses and thus making the device unusable. In one form a protective disc (1) is mounted on the lens (3) on the outside. This disc has a multiple layer coating of acrylic resin lacquer on the outside. In another form, a dark protective glass disc which is similarly coated on both sides, is inset into a shield or other protective device.
Patent DE-2736697-A1 (DE)
Title: Marking circuit for return signals in telephony - uses specified sets of switches as detectors and stores in branch exchange or subscriber lines
Inventor: DIRR JOSEF ING GRAD
IPC: H04M3/58
Filed: 1977-08-16
Abstract: The circuit uses a selection criterion for marking return signals. Switches are used to differentiate between selection criteria used to construct the exchange connection and the return signal in the branch exchange. Further switches are located in the branch exchange that store the signals from the exchange and allow a return criterion to come into effect in cooperation with selection criteria. Some switches are located in the calling lines to the subscriber.
Patent DE-2739598-A1 (DE)
Title: Magneto=optical coupler for current measurement in HV line - uses magnetostrictive physical shift to vary air-gap in optical conductor channel
Inventor: REIBNITZ HANS-PETER DIPL ING
IPC: G01R33/032
Filed: 1977-08-31
Abstract: A measuring transducer is used to determine the strength of current in HV lines by magneto-optical coupling. It has two closely spaced plates or tubes (1, 2) connected at one end and joined at their other ends to a gap in an optical conductor (6, 7) so that the gap has a pair of opposing faces. The spaced components have magnetostrictive properties so that the applied field varies the gap across which light has to pass and hence the transmittivity of the channel. An optical signal is thus generated which may be sensed by appropriate systems.
Patent DE-2753165-A1 (DE)
Title: Wrist mounted heartbeat measurement system - has two electrodes on housing detecting differential ECG signals
Inventor: SAEYNAEJAEKANGAS SEPPO JUHANI
IPC: A61B5/332
Filed: 1977-11-29
Abstract: The system continuously measures the heartbeat and its return, the ECG heart signal being measured and the beat derived electronically from this signal and the return being fed to indicators (15) where the beat frequencies are directly read in numbers. The ECG heart signal is detected differentially at two separate points on the patient's body, preferably the hands, by means of two electrodes (1, 2) electrically insulated from each other and with no external conductors. These are fixed to a housing (2) worn on the wrist or carried in the pocket, their mechanical construction ensuring completely vibrationless measurement. The closed metal housing with electrodes gives the necessary protection against interference for the sensitive differential measurement of the ECG signal, the solid outer electrode (2) forming for the other one (1) a closed and shielded chamber in the form of a Faraday cage.
Patent DE-2802767-A1 (DE)
Title: Ring spinning servicing trolley - has a brush cleaner for the ring travellers
Inventor: KAMP HEINZ
IPC: D01H7/60
Filed: 1978-01-23
Abstract: The servicing trolley which travels along the line of spinning stations, on a ring spinning machine, incorporates a cleaning unit for the ring travellers. The ring traveller cleaner has a cleaning brush and contact with the drive mechanism of the ring rail. There is >=1 drive roller in the drive mechanism. There is a weight or spring loading to keep a pivoted lever against the servicing trolley. The system gives a common traveller cleaning mechanism, which does not have to be modified if the diameters of the ring travellers change, and eliminates the need for manual cleaning and adjustment.
Patent DE-2808639-A1 (DE)
Title: Teletype character transmission rate changing circuit - has addition loop connected at input to multiplexer and at output to programmed control memories
Inventor: STEINER HERBERT
IPC: H04L25/05
Filed: 1978-02-28
Abstract: The generator sends teleprinter characters at different speeds and includes an addition loop containing a random access memory with the same number of storage sections as there are characters to be converted. The addition loop is coupled by its input to a monitor containing a multiplex coupled to all transmission lines on which characters needing converting appear. The output of the loop is coupled via selection logic to programmable read only memories. The outputs of these memories are connected to a demultiplexer which controles the shift registers assigned to each transmission line.
Patent DE-2816317-A1 (DE)
Title: Refrigerator with absorber powered by solar energy - has fresnel lens facing absorber and external rod shaped lenses
Inventor: SACHSE CHRISTIAN
IPC: F24S23/30
Filed: 1978-04-14
Abstract: The refrigerator system consists of an insulated housing and refrigerator with absorber, expansion valve, evaporator and collector. The refrigerator has high cooling efficiency and can be used for a wide variety of purposes. The absorber (4) is arranged in the focal point of an optical lens system (10) and heated by solar energy. This optical lens system (10) consists of a Fresnel lens whose facets (11) are placed on the absorber side. The outside surface of this lens has a large number of rod-shaped lenses (12). The solar energy is concentrated on the absorber (4). A solar energy concentrating mirror can also be used.
Patent DE-2821936-A1 (DE)
Title: Telephone exchange with dual circuits and error detection - automatically switches to different unit when errors are detected
Inventor: BOECKER GERD DIPL ING
IPC: H04Q3/42
Filed: 1978-05-19
Abstract: Groups of subscribers are connected through their circuits (T11...T1n, T21...T2n) to exchange switching panels (K1, K2) and auxiliary units e.g. path seekers (gg1, gg2). Each switching panel has doubled control units (G11, G12, G21, G22) connected to two busbars (La. - Lb) and assignment units (Za, Zb) through matching and buffer storage units (YS11, YS12, YS21, S22). The assignment units monitor transmissions and where necessary initiate remedial action by substituting e.g. one control unit for the other. Parts of the installation can drop out without affecting communications. The system may be used in other communication systems e.g. telemetry.
Patent DE-2827838-A1 (DE)
Title: Self-adhesive label with optically readable characters - has information and supporting sheets and glue repellent separating sheet between them
Inventor: STELZER RAINER
IPC: G09F3/02
Filed: 1978-06-24
Abstract: The label consists of an information sheet coated with glue and of a supporting sheet glue repellent on one side. The information sheet is divided in individual sections (6-8). A separating sheet between the information (3) and supporting sheet is glue repellent on its side facing the information sheet (3), is coated with glue on its side facing the supporting sheet and has an imprint. The information sheet (3) is optical readable and written by electronic data processing techniques.
Patent DE-2827848-A1 (DE)
Title: Plastics drum with detachable cover - has interlocking projections in both top and bottom parts for sealingly clamping them together
Inventor: BRUNE HERMANN
IPC: B65D43/02
Filed: 1978-06-24
Abstract: Plastics barrel with clamping ring and removable lid is claimed, the lid engaging the mouth of the barrel with a flange and overhanging the mouth with its outer rim, thus defining an annular groove into which an elastics ring seal is fitted. Just below the mouth of the barrel there are circumferentially spaced projections serving as counter-bearings for a clamping strip which, when tensioned, engages segments in the lid which fit into the spaces between the counter-bearings, the whole arrangement resulting in a sort of tooth assembly of barrel body with lid. The projections have collars and the lid segments protrude outwards over adjacent zones of the barrel body so that they are forced, by a clamping strip radially against the wall of the barrel between the projections whilst their angled bases bear against the counter-bearings.
Patent DE-2900317-A1 (DE)
Title: IC engine with rotary combustion chamber - converts combustion energy immediately into rotary energy
Inventor: SCHWARTE MICHAEL DIPL ING
IPC: F01C1/34
Filed: 1979-01-05
Abstract: The combustion chamber is located on a disc (2) which can rotate inside a housing (1). It rotates in a circular chamber which can be closed off by a separating piston (5). The air which is compressed in the circular chamber can flow into the combustion chamber, while the first valve piston (4) is open. This piston closes after the compression. Fuel-air mixture is injected in the combustion chamber and is ignited by a spark plug as soon as the separating piston (5) has been passed. The ignite gases now drive the disc (2).
Patent DE-2900702-A1 (DE)
Title: Dyestuff applicator - has a beam with dye guide and distributor to give pressure-free action
Inventor: MITTER MATHIAS
IPC: D06B11/00
Filed: 1979-01-10
Abstract: To apply fluid dyestuff to textile fabric web, beam applicator is used which ranges across the fabric path, carrying dye guide under it to lead dye droplets towards the fabric. Dye guide is combined with a distributor which is activated or inactivated across the fabric path plane. Process ensures that there are no adverse forces applied to dyestuff, and there is no pressure on fabric so that wide variety of patterns can be developed.
Patent DE-2902607-A1 (DE)
Title: Descaling plant handling uranium hexa:fluoride - by treating with bromine tri:fluoride formed in situ to give only gaseous cpds. and minimise corrosion
Inventor: JACOB EBERHARD DIPL CHEM DR
IPC: C23G5/00
Filed: 1979-01-24
Abstract: Elimination of firmly adhering or dusty deposits in plant for handling UF6 is effected by treating with the reaction prod. of a Br cpd. (I) and excess fluorinating agent(s) (II) at room or higher temp. Pref. (I) is CF3Br or CF2Br2 and (II) is IF7 or F2. Rapid cleaning is possible without dismantling the appts. Only gaseous prods. form, there is practically no corrosion, since Br2 formation is prevented by the use of excess (II), and the risks of operating with ClF3 are avoided. Costs of cleaning and eliminating the radioactive waste obtd. are minimised. Also, since gaseous UF6 is formed, nuclear fuel losses are very small.
Patent DE-2902622-A1 (DE)
Title: Office swivel chair with single-action adjustment - has setting lever with control cam for freedom of movement and locking
Inventor: BEER HERBERT
IPC: A47C1/027
Filed: 1979-01-24
Abstract: One part of the chair, e.g. the seat support (31) has a rotatably mounted adjustment lever (5) which has a control cam or adjustment face 6' which adjoins the second part e.g. support structure (2) where in the distance of the control cam from the axis (7) of the lever can be altered. The mechanism for fixing the required angular position of the two parts may be two disc (11, 12) pressed against each other by a spring (9) set between the adjustment lever and the seat support wherein the displacement of the lever from one of the angular positions causes the setting to be raised until the next angular position is reached. The chair can be speedily adjusted by the user sitting in the chair. The control cam is pref. the outer face 6' of an eccentric attached to the adjustment lever (5) with its outerface adjoining the support structure.
Patent DE-2905569-A1 (DE)
Title: Wind driven turbine with prism shaped rotors - has wind deflecting shield which projects rotors moving against windward direction
Inventor: POHL LOTHAR LOUIS
IPC: F03D3/02
Filed: 1979-02-14
Abstract: The wind driven turbine for converting kinetic energy to mechanical energy consists of a tower (1) supporting rotors (2, 3) formed as prisms with curved surfaces. A wind deflecting shield (7) directs the airflow to the surface of each rotor moving in a windward direction whilst shielding the surface moving against the windward direction. The rotors and shield are carried on an intermediate frame (5) which is rotatable about the tower. the shield may have adjustable guide vanes whereby the direction of air flow relative to the rotor surfaces may be varied.
Patent DE-2908694-A1 (DE)
Title: Solar power unit using volume changes of wax - uses heat transfer medium and drives water pump
Inventor: MICHAELIS FROBERT DIPL ING
IPC: F03G7/06
Filed: 1979-03-06
Abstract: The power unit, such as may be used to drive a water pump, uses heat, pref. in the from of solar radiation, to drive a piston. It comprises a chamber filled with a substance such as wax, paraffin, stearin etc. and uses its volume changes during rapid heating above and cooling below its melting temp. to move the piston. The substance is heated and cooled bya heat transfer medium surrounding the chamber. The pressure-tight housing may consist of a small-dia. closed tube with good heat conducting properties, arranged around the piston and communicating with the piston cylinder.
Patent DE-2909574-A1 (DE)
Title: Loom - having sets of diverse sinkers for mfg. fabrics differing in respect of laying warp and weft yarns
IPC: D04B39/06
Filed: 1979-03-12
Abstract: Loom has a number of juxtaposed arcuate sinkers provided with an arcuate slot for warp yarns guided by independently movable healds. Sinker is mounted on a slidable sinker provided with a recess forming a guide channel for the weft yarn shuttle. Adjacent guide groove is provided with a bearded needle provided with >=2 spaced projections and associated with a slidable sinker for formation of yarn space. On the web of the groove there is mounted slidably a further sinker for covering the upper portion of the guide channel for the shuttle. Loom has further a control member influencing the sinkers and movable simultaneously with a yarn guide tube which inserts a knitting yarn in the woven fabric above or below the sinker. Tube co-operates with needle or sinker bed disposed above the carried bed of the sinkers and reciprocable vertically relative to the warp supply direction for formation of loops. Loom can produce a variety of fabrics differing in respect of laying warp and weft yarns at high prodn. rate and low noise level.
Patent DE-2910194-A1 (DE)
Title: 1-(4-Aminopiperidino)-3,4-di:hydro-isoquinoline derivs. - are antiarrhythmics which lower blood pressure
Inventor: LATTRELL RUDOLF DIPL CHEM DR
IPC: C07D491/04
Filed: 1979-03-15
Abstract: (A) 1-(4-Aminopiperidino)-3,4-dihydroisoquinoline derivs. of formula (I) and their physiologically acceptable salts are new (R1 is H, 1-6C alkyl, Ph, 1-6C alkoxy, 1-6C alkylthio, benzyloxy, methylenedioxy, halogen, CF3, OH, NO2, amino, 1-6C alkoxycarbonyl or sulphamoyl, and if there is more than one R1 gp. they are the same or different; n is 1-3; R2 and R3 are each H, Ph, CH2Ph, or opt. branched 1-6C alkyl; R4 is 1-6C alkyl, 2-6C alkenyl, 1-6C alkoxy (opt. substd. by OH), 2-6C alkenyloxy, 5-7C cycloalkyl, 5-7C cycloalkyloxy, aryl, aryl-1-6C-alkyl, diaryl-1-6C-alkyl, aryl-1-6C alkoxy or aryloxy, where aryl is Ph, furyl, thienyl or pyridyl and where the aryl gps. are mono-, di- or tri-substd. by 1-6C alkyl, 1-6C alkoxy, 1-6C alkylthio, Ph, benzyloxy, methylenedioxy, halogen, CF3, OH, NO2, amino, 1-6C alkoxycarbonyl or sulphamoyl). (I) can be used to treat disorders of heart circulation. (I) lower blood pressure and have antiarrythmic properties. Daily doses i.v. or i.m. are suitably 10-200 mg.
Patent DE-2911318-A1 (DE)
Title: Farm or garden produce drying process - uses solar radiation in heat insulated chamber with transparent wall for layered produce drying
Inventor: NOCKEMANN OTTO
IPC: F26B3/28
Filed: 1979-03-22
Abstract: The process is used for drying farm or garden produce, a layer of which is placed in a chamber which is at least partly heat-insulated. The chamber has one or more walls transparent to sunlight, and the produce is subjected to direct or indirect solar radiation. Fresh air can be supplied to the chamber while the moisture-laden air is discharged from it. The produce can be moved continuously through the chamber, or an intermittent movement may be imparted. During the movement a countercurrent of air may be applied.
Patent DE-2913637-A1 (DE)
Inventor: MAIER PETER
IPC: B60Q1/30
Filed: 1979-04-05
Abstract: 1. Hinged tail gate for vehicles, especially a tail gate for goods vehicles which can be swung by lifting means, with reflectors, flashers, or the like arranged in its hinge zone, the reflecting or flashing surface of which faces away from the vehicle, characterised in that carrier elements for the reflectors (17), flashers (18) or the like, formed as a two-armed pendulum body (7) are provided on the tail gate (4), and these bodies can pivot out of the plane of the tail gate under the effect of gravity, when the tail gate is in inclined position (B) and/or parallel position (C) relative to the roadway (F).
Patent DE-2914384-A1 (DE)
Title: Welding thermoplastics components together - by moving them towards one another at lower and higher speeds during friction plasticising and cooling respectively
Inventor: STOLZ GERD PROF DIPL ING
IPC: B29C65/00
Filed: 1979-04-10
Abstract: Thermoplastics components are thermowelded together by moving them towards one another under pressure to effect melting and fusion, whereby in the plasticising phase the rate of moving of the components towards one another is lower than that in the cooling phase. Large components can be welded together using reduced torque and lower motor inputs. Components are plasticised at the welding regions without formation of cavities.
Patent DE-2919234-A1 (DE)
Title: 4-Bromo-anisole prodn. from anisole - by reaction with bromine dissolved in aq. hydrobromic acid
Inventor: JENKNER HERBERT DR
IPC: C07C43/225
Filed: 1979-05-12
Abstract: Prodn. of p-bromoanisole (I) comprises reacting anisole (II) with a soln. of Br2 in aq. HBr. Pref. Br2 is dissolved in 25-62 wt.% HBr to give a soln. with Br2:HBr soln. wt. ratio 1:1. A purer prod. is obtd. compared with known methods, esp. contents of unreacted (II) and of 2,4-dibromoanisole (III) are reduced.