baber/WOPTO huggingface dataset:
Patent DE-2738285-A1 (DE)
Title: Alpha:cyanoacrylic ester cpds. synthesis - from cyanoacetic ester and formaldehyde, using Lewis base as catalyst, giving good stability and purity
Inventor: WINKOVIC VIKTOR
Filed: 1977-08-25
Abstract: Synthesis of alpha-cyanoacrylic esters (I) of the formula CH2=C(CN)-COOR (in which R is 1-12C alkyl, alkenyl or alkynyl, (un)substd. benzyl or an aromatic gp.) comprises catalytic condensn. of cyanoacetic esters with (para)formaldehyde, opt. in soln. in organic solvents. The catalyst used is a salt having an anion acting as Lewis base and is added, before and/or during the reaction, in solid form on in any solvent. Pref. synthesis is at pH 3.0-12.0, pref. 6.0-7.8. The salt is p repd. by reacting the appropriate metal base with the corresp. acid(s) in not only equiv. ratio and is added in an amt. of 0.0001-0.1 mole % w.r.t. the cyanoacetic ester. The salt is derived from an (in)organic acid and pref. is an alkali (Na or K) tetraborate and/or metal (Mn(II)or Ca) acetate, opt. with an addn. of boric and/or acetic acid. (I) obtd. have improved stability and purity and excellent adhesive properties.
Patent DE-2738335-A1 (DE)
Title: Points and signal control system for model railways - uses multichannel transmitter, and control pulse receiver for each point and signal
Inventor: KILIAN HELMUT
IPC: A63H19/32
Filed: 1977-08-25
Abstract: The control system is for signals, points, etc. which are supplied with current through the rails. There is a multichannel transmitter for radio remote control. Each signal receiver has a control impulse receiver in front of it, to take the current from the rails, these being connected to a constant voltage. The system avoids the necessity for festooning the railway layout with ugly cables for control of the points. The lengths of track are divided into sections (Kanal I to Kanal IV). There are corresponding buttons, switches or keys on the multichannel control transmitter. Each switch may operate a given pair of points or a given signal.
Patent DE-2739815-A1 (DE)
Title: Air filter cell - with frame locating trapezoidal walls and free ends of pleated V=shaped filter medium
Inventor: SALIE HARALD
IPC: B01D46/00
Filed: 1977-09-03
Abstract: Air filter cell, contg. V-shaped packets of a filter medium with zigzag pleats, consists of a square frame which has been assembled from four shaped sections. Two opposed sections carry the trapezoidal side walls of the filter packets. The two other sections are used to fix the free ends of the zigzag pleats of the filter medium to them by clips. Arrangement avoids the use of self-curing sealing cpds. The cells have a wider scope and and can be stored without difficulties.
Patent DE-2757038-A1 (DE)
Title: Socket for flat-cable connector - has wires ultrasonically welded in presence of tin to spring contacts
Inventor: RILLING HANS DIPL ING
IPC: H01R4/02
Filed: 1977-12-21
Abstract: The socket, for mating with multi-pin plugs, consists of a row of cavities containing spring contacts. The pins of the plug enter the socket from one side. The ends of the wires of a flat cable enter the cavities from the other side and are welded ultrasonically to the contacts. The ultrasonic welding is accomplished after a solder metal (9), especially tin, has been applied to one of the parts being welded (4, 5).
Patent DE-2758017-A1 (DE)
Title: Cylindrical storage and dispensing container - has telescopic nozzle inside hollow piston for dispensing two different substances
Inventor: KISTNER HELGA
IPC: B65D81/32
Filed: 1977-12-24
Abstract: A cylindrical container (1) is divided into two chambers by a radial disc (11) which is attached to the inner end of the hollow mixing piston (12). A telescopic dispenser nozzle (21) is located inside the mixing piston (12). A removable button (25) seals the nozzle until it is extended for use. Before the mising piston and the nozzle inside it are pulled out, an axial blow on the nozzle button breaks a seal (14) on the inside end of the mixing piston. The two substances (A, B) are then able to mix inside a single cylinder chamber so that already for use two component adhesive or similar substance is obtained from the nozzle (21).
Patent DE-2808466-A1 (DE)
Title: Record disc groove cutting error correction - using comparison of modulation amplitude and groove depth control signal to derive error signal
Inventor: KERN OTMAR
IPC: G11B3/00
Filed: 1978-02-28
Abstract: The error correction is used for depth recording of signals on a record disc, in which the cutting force does not depend linearly on the cutting depth, but increases with its square. The process uses a comparison between a modulation amplitude(As) and the control signal for the presettable basic cut depth (To). For this comparison is used a formula where T1 = TO + As, and TO is the basic cut depth. T1 is the control cutting depth, T2 the actual cutting depth under modulation, and As is the peak amplitude of modulation. From the comparison is derived an error signal (F), which controls the amplification of the control signal over a transmission path, whose end is provided with an electromechanical transducer (W) which affects the cutting pressure, in order to compensate any possible error.
Patent DE-2808704-A1 (DE)
Title: Reactive-power regulating system - has control circuit actuating additional relay after last capacitor has been switched in
Inventor: APPEL GERHARD DIPL ING
IPC: H02J3/18
Filed: 1978-03-01
Abstract: The reactive-power controller has a second group of relays (17-22) switching capacitors in and out and connected to the break contacts (b) of auxiliary switches. An additional relay (8) is operated by the control circuit (10) and has make contacts equal in number to the number of capacitor relays in the second group and connected to a control voltage and to the changeover contacts of the auxiliary switches (1-6). The control circuit actuates the additional relay after the last capacitor in the first group has been switched in.
Patent DE-2812031-A1 (DE)
Title: Vehicle mounted concrete transporter and mixer - has metering trough with adjustable shutter below outlet from mixing drum
Inventor: ANDRIESSEN HANS
IPC: B28C5/42
Filed: 1978-03-18
Abstract: The mobile concrete mixer mixes the concrete while travelling, having a drum turning on a vehicle chassis and with filling and discharge openings. Below the discharge opening and funnel is a metering vessel, regulating the intake and discharge of the concrete from the drum. Instead of the normal discharge chute from the funnel (9) there can be a trough-shaped metering vessel (10) with raised sides (11) and a shutter hinging upwards. This can be adjusted and hinged in the horizontal and vertical directions.
Patent DE-2812427-A1 (DE)
Title: Insulated formwork for concrete floor-ceiling - has reinforced concrete prefabricated insulation held to wall by shackles
Inventor: KLEE ALOIS
IPC: E04B5/32
Filed: 1978-03-22
Abstract: The sheating is for a ceiling beam, with multipart insulation and can be applied during pauses in crane operation while laying a prefabricated ceiling. It is made up from prefabricated insulation (3) strengthened with reinforced concrete, with attachment provided for fixture to an upright wall (6). A long narrow concrete slab (1) of ceiling (7) thickness has a continuous groove (2) on each narrow side and multi piece insulation fitted to a broad side. The grooves can hold insertable loop shackles (4) for wall attachment.
Patent DE-2813322-A1 (DE)
Title: Granulating toxic dusts for use in glass mfr. - comprises mixing with glass making components and water glass, granulating and drying
IPC: C03C1/02
Filed: 1978-03-28
Abstract: Toxic dusts of precursor cpds. used in the glass industry, are granulated by addn. of binder materials, by mixing the dusts with quartz sand and or other glass forming components to form melt nuclei, and granulating together with Na or K waterglass. Low m.pt. cpds. such as borax or boric acid are added to the mixt. Process is inexpensive and avoids the need for more expensive methods and equipment for introducing these cpds. into glass without danger to the health of the glass works personnel. Process also avoids loss by sublimation.
Patent DE-2815303-A1 (DE)
Title: Telecontrol system esp. for vehicles - has ring circuits to outstations for power, synchronisation and control by use of clock pulses
Inventor: KOEPERNIK VIKTOR
IPC: H04B3/44
Filed: 1978-04-08
Abstract: A telecontrol system has a central transmitter and ring circuits to out-stations. One ring circuit carries clock pulses which not only synchronise the out-stations but also power the receivers using rectifiers and smoothing capacitors. The second ring circuit carries switching signals which selectively operate the switches to switch in the loads. Where the clock pulses power both load and receiver, cost savings result whilst giving a stable supply voltage. Alternatively, a separate supply to the loads ensures an interference-free -free supply to the receivers.
Patent DE-2817612-A1 (DE)
Inventor: POHL GERHARD
IPC: B29C65/04
Filed: 1978-04-21
Abstract: Manufacture of textile compound fabrics from elements (30, 31) capable of being interconnected by H.F. welding. The welding is enhanced by addition of plastic materials (5, 51, 52). These plastic materials are resistant to washing agents, cleaning agents, adhesives and have, under the action of a H.F. field, a polar as well as a substantially non-polar behaviour. The elements susceptible to receive the means enhancing the welding may and have to be modified as regards the shape, sections, arranged into a layer with respect to each other and subject to overpressures, to depressions, as well as to other physical, mechanical, chemical, pneumatic, hydraulic, electric and electronic actions, all of this being achieved in machines (I, II, 11, 12, 13, 14) specially designed for this purpose. The products obtained differ from those that are known by the presence in good order within said obtained products of bonding elements made from plastic material particles having a varied dielectric behaviour when they are subjected to an H.F. field.
Patent DE-2829636-A1 (DE)
Title: Tooth screw adjusting device - has two screws with slides and with heads working in central bearing
IPC: A61C7/10
Filed: 1978-07-06
Abstract: The screw device for tooth adjustment has a screw running parallel to one or more guide rails and turning in a bearing at one end so as to move a slide along the rails. There are two adjusting screws (5a, 5b) extending towards each other, both screw heads being accommodated in a central bearing (4). Each screw actuates an adjusting slide (1a, 1b), these moving separately and in opposite directions. The slides can run parallel to their screws on double guide rails, one of which is U-shaped (6).
Patent DE-2833683-A1 (DE)
Title: Exposure station for contact copier - has two pairs of pressure rollers to define exposure slit
Inventor: WIESSNER MANFRED
IPC: G03B27/10
Filed: 1978-08-01
Abstract: Exposure station for contact copier with two pairs of pressure rollers(8, 9, 10, 11) between which is set the exposure slit(3). The underside of the copy and document is supported by a fifth roller(12) while a shield(13) over the outside of the upper rollers prevents stray light from scattering to adjacent frames. The system provides an accurate and high speed contact copier which can be used to copy microfilm.
Patent DE-2834461-A1 (DE)
Inventor: KRESGE JAMES STANLEY
IPC: C04B35/453
Filed: 1978-08-05
Abstract: The sintered varistor body is subjected to a heat treatment of only one cycle, by being held for from one to ten hours within a temperature range of from 580 DEG C to 780 DEG C. Curve F shows that in the event of a heat treatment of one times four hours at 580 DEG C a leakage current stability is achieved which is qualitatively as good as by cyclic treatment of four times one hour according to curves D and G. The ordinate shows the leakage current and the abscissa the leakage current stability in hours. The invention is suitable for fabricating zinc oxide varistors having good leakage current characteristics at high ageing. <IMAGE>
Patent DE-2843675-A1 (DE)
Title: Pumped storage electricity generating system - has large container submerged in reservoir to avoid use of two reservoirs
Inventor: GRUEB RAINER ING GRAD
IPC: F03D9/25
Filed: 1978-10-06
Abstract: A large container is placed at the bottom of a reservoir. It has an inlet controlled by a valve through which water flows from the reservoir into the container. This flow drives a turbine just inside the container. A pump takes water out of the container through a suction pipe and returns it to the reservoir outside the container. The pump can be driven by off peak electricity while the valve is shut so that the container is emptied for generation to take place by gravity flow during the peak period. Alternatively the pump can be driven by a wind impeller while the turbine is running.
Patent DE-2844007-A1 (DE)
Title: Line amplifier or carrier for HF transmission systems - has protective circuit with thyristor, diode, zener diode and resistor
Inventor: BARTENSTEIN PETER ING GRAD
IPC: H03F1/52
Filed: 1978-10-09
Abstract: The amplifier has an overload protection circuit with at least one protective circuit in parallel with the transmission line. The protective circuit, or at least one of them(1-4), contains a series circuit consisting of a diode(31, 41) and a thyristor(32, 42) anode-cathode path, and is in parallel with the signal transmission path. The thyristor (32, 42) is in parallel with a series circuit consisting of a resistor(34, 44) and a Zener diode(33, 43). The thyristor(32, 42) gate is connected to the junction point between the resistor(34, 44) and the Zener diode(33, 43). The thyristor(32, 42) gate is connected to the junction point between the resistor(34, 44) and the Zener diode(33, 43). The diode(31, 41) is blocked by a bias voltage(Uv3, 4). A capacitor(35, 45) is connected in a parallel with the one of the Zener diodes and the thyristors.
Patent DE-2849934-A1 (DE)
Title: Error detector for coded measurements from sampling elements - has logic circuit for each decimal place of measurement valve whose outputs are connected to storage elements
Inventor: FRANCKE DIETRICH DIPL ING
IPC: G06F11/14
Filed: 1978-11-17
Abstract: The error detector, for coded measurements, e.g. in NC machine tools or weighing equipment, prevents erroneous data being printed out by using a logic circuit for each decimal place of any number being outputted. It indicates failure e.g. of one of several opto-electronic sampling elements. Each logic circuit (5 or 6) is connected by its input to the samplers (3, 4) that generate binary levels describing one decimal place. A storage element (R5-flip-flop) is connected to each pair of outputs assigned to complementary code bits. The outputs of all stores are passed to a shared logic circuit (8) that drives an output switch 1.
Patent DE-2851528-A1 (DE)
Title: Connector used between TIG welding burner and welding machine - where two control cables are shielded from high frequency current fed to burner by tube in connector plug
Inventor: SCHAAF GUENTER
IPC: B23K9/32
Filed: 1978-11-29
Abstract: The connector has a central block made of insulating material and provided with a current connector bolt entered by a current tube contg. inert gas supply channels and fitted with an insulating handle. The tube carries high frequency welding current to the burner and also forms part of a central connector plug; the tube also contains a control cable fitted with a contact heat insulated from the tube. The contact head mates with a spring-loaded contact peg located in the central block and fitted with a control lead. An insulator bush surrounds the contact- head and -peg. combines a high frequency connector and a connector for control cables in a single housing, where the two electric current. are shielded from each other.
Patent DE-2854045-A1 (DE)
Title: Photolacquer structuring for lift=off technique - involves applying full face exposure through glass after UV light exposure
Inventor: TRAUSCH GUENTER-ELMAR DIPL ING
IPC: G03F1/68
Filed: 1978-12-14
Abstract: To produce very fine photolacquer structures in the mfr. of semiconductors, so-called hard masks are applied for irradiating the lacquer layer by UV light. The masked side of the substrate then receives a sputtered or vapour-deposited metal layer, followed by a treatment with solvents to remove the photoresist. After the usual exposure and before the development, a second brief exposure is carried out through the glass carrier over the full area. This ensures a satisfactory lift-off for the metal layer above the photolacquer structures.
Patent DE-2900981-A1 (DE)
Title: Hydraulic pit prop adjustable roof support - has extension with horizontally sliding telescopic sheets and extra portion swung down vertically
Inventor: WELZEL JOSEF
IPC: E21D23/06
Filed: 1979-01-12
Abstract: The adjustable roof member for a hydraulic pit prop includes an extension secured by a hinge (2) to the main roof support (1). The extension consits of an outer sheet (7) which can be extended telescopically by sliding over a lower sheet (3) attached to the hinge. The outer sheet also carries a retractable portion (13) which can be swung down vertically for additional protection. The outer sheet is extended by a horizontal cylinder (6) underneath, and the retractable sheet is swung down by another cylinder (14). The outer sheet had depression which fit inside corresponding channels in the lower sheet.
Patent DE-2901115-A1 (DE)
Title: Combined fixed and rotary wing aircraft - has lift rotor plane inclined for forward thrust and air from propulsion unit blown over control surfaces
Inventor: FOELL ERWIN
IPC: B64C27/22
Filed: 1979-01-12
Abstract: The fixed-cum-rotary wing aircraft has a pair of horizontal rotors centred above the fixed-wing tips, driven via shafting by a power unit in the fuselage. Forward thrust is provided by angling the rotor plane at 20-30 deg. w.r.t. the aircraft's longitudinal axis, in the direction of flight. Adequate flow velocity over the control surfaces - pref. of inverted-V form - is ensured by blowing air/gas over them, via internal ducting from the propulsion unit. For landing, a sub-assembly within the cabin comprising pilot's seat and controls can be tilted forwards about a horizontal hinge.
Patent DE-2901879-A1 (DE)
Title: Photographic image transfer system - includes diffusion element adjacent original or copy recording support to reduce visibility of dots
Inventor: RUFFELL NORMAN C
IPC: G03F7/20
Filed: 1979-01-18
Abstract: The photographic transfer system, for transferring a dot image from one recording support to another, includes a diffusion element positioned very close to the surface of one or other of the recording supports. The use of the diffusion element enables a sufficiently clear, but essentially dot free image to be formed on the second recording support. Alternatively, a dot image is formed on the second recording support with image points at an angle to the main axis of the image points on the first recording support. Pref. the diffusion element comprises an acetate foil at a distance of between 0.178 and 0.279 mm from the surface of the first recording support.
Patent DE-2903649-A1 (DE)
Inventor: LISEC PETER
IPC: E06B3/673
Filed: 1979-01-29
Abstract: The appliance for coating spacer frames (7) for insulating glass with adhesive and sealing composition is provided with a support wall which serves as a seat for the spacer frames (7) and is inclined with respect to the vertical. It further has a conveyor track (11) which is horizontal in the conveying direction and serves for transferring the spacer frame (7), two nozzles (10) being arranged at both sides of the conveyor track (11), and two pivotable pressure rollers pressing the frame sections to be coated against the conveyor track. A turning mechanism is employed for successive quarter turns of the spacer frame in its plane. The supporting wall consists of a plurality of upright drivable rollers (8) arranged above the conveyor track (11). The turning mechanism has a gripping device (13) which is provided with two clamps (16) and can be pivoted, in order to rotate the spacer frame, about an axis situated in the line connecting the nozzle orifices. The clamps (16) of the gripping device (13) each have two pivotably mounted clamping jaws (17) which carry shanks (20) perpendicular thereto and are linked via rods (21) to a piston-cylinder unit (22, 23). This appliance ensures that even large spacer frames are turned gently. <IMAGE>
Patent DE-2904449-A1 (DE)
Title: Anaerobic treatment plant for effluent - with circulation from digester to settling tank induced by methane gas rising in central column
Inventor: KUILBOER RENE JEAN PETER ALFON
IPC: C02F3/28
Filed: 1979-02-06
Abstract: Water-borne effluent is treated anaerobically in a vessel comprising a digestion chamber equipped with a feed for the effluent, above the digester, a pptn. chamber with a central opening and an inclined floor, a column rising through the central hole in the floor of the pptn. chamber which overflows into an annular space between the column and a sleeve, a gas collector and an overflow for clean water. The bottom of the central column is dished outwards so that the methane gas generated flows into the column and induces a circulation of liq. upwards through the column and over the overflow. To ensure that effective sepn. of the gas from the liquid takes place in the annular zone, a flocculant is pref. added. The water and sludge flow beneath the lower lip of the sleeve into the settling chamber. The floor of the chamber is pref. inclined down toward the central opening to ensure that the sludge flows out between the central column and the lower edge of the floor. For larger treatment plants where this may be impractical, the floor is equipped with a mechanical sludge scraper. Due to the construction of the central rising column and the arrangement of the settling chamber and digestion chamber, short circuiting of the digestion and settling streams is avoided. By adjusting the vertical position of the column, the throughput can also be regulated.
Patent DE-2909332-A1 (DE)
Title: Insulated flask with screw closure - has metal casing and insulated inner container, with internal threaded ring around pourer opening (NL 11.9.80)
Inventor: ZIMMERMANN ANSO
IPC: A47J41/00
Filed: 1979-03-09
Abstract: The insulated flask or container has a screw closure (9) and consists of a metal casing (1) enclosing an insulated lining (2) pref. in the form of a Dewar flask. The screw top (9) is inserted and fixed into the opening in the casing (1) surrounding the opening (4) in the insulated lining container (2), by means of a threaded ring (6) with an inner thread (8). The threaded ring (6) is made of injection-moulded plastic, and has a cylindrical extension (7) and protrudes into the opening (4) in the insulated container (2). The outer periphery of the threaded ring (6) has a collar (16) by which it is kep tight underneath a flexible intermediate piece (17).
Patent DE-2917371-A1 (DE)
Title: Water cooled IC engine with compressor - which produces under-pressure in exhaust uses energy of cooling system and hot exhaust for drive of turbine set
Inventor: JAHNS CHRISTIAN
IPC: F01P5/10
Filed: 1979-04-28
Abstract: The water-cooled internal combustion engine has a compressor, which produces an underpressure in the exhaust pipe. It converts the unused energy of the cooling system and the hot exhaust gases to drive the compressor. The cooling water is fed back to the internal combustion engine (1) via a boiler (7) supplying a steam turbine (8). The energy of the steam turbine is used to drive the compressor (3). The shaft of the steam turbine (8) is coupled to that of the compressor via a detachable coupling. The steam turbine drives a generator (24), which also charges a battery (25). A buffer motor (26) stores the energy for driving the compressor.