baber/WOPTO huggingface dataset:
Patent DE-2811065-A1 (DE)
Title: Forked telephone circuit separating call and receive paths - uses self-balancing FET controlled impedance bridge
Inventor: ZWICKY PAUL DIPL ING
IPC: H04M1/58
Filed: 1978-03-14
Abstract: The forked telephone circuit separates the 'call' and 'receive' paths in a two-wire connection (23). A bridge (19, 22, 23, 24, 25) is self-balanced in amplitude and phase by variable resistive (19) and reactive (22) impedances which are voltage regulated by a F.E.T. circuit. The phase sensitive detector (16) which uses the calling signal (18) as its reference, controls the resistive impedance. A second phase sensitive detector (20) controls the capacitive impedance using a reference signal 90 deg. out of the phase with the calling signal (21). This circuit can be extended for use with inductive components.
Patent DE-2812049-A1 (DE)
Title: N-channel storage FET with floating storage gate - has p-doped zone between source and drain with highest doping concentration in specified depth under substrate surface
Inventor: ROESSLER BERNWARD DIPL ING
IPC: G11C16/14
Filed: 1978-03-20
Abstract: The floating storage gate is completely surrounded by an insulator. Charge of the storage gate is changed by injection of electrons in the channel, where they are accelerated and heated by the electric field in the source-drain direction. Thus they overcome the insulator energy threshold and reach the gate. The FET has in additon a control gate capacitively acting on the storage gate. It programs, i.e. negatively charges, the storage gate and uses the channel injection so that the storage gate charge brakes the channel current, as in 2445137). A p+ doped zone (Z01) between drain (D) and source (S) has its greatest doping intensity below the substrate surface at a depth of at least 30% of source (S) thickness.
Patent DE-2824656-A1 (DE)
Title: Heat insulated building panel components connector - consists of plate with barbed areas on both major faces and central section matching thickness of insulation layer (OE 15.6.78)
Inventor: KRUEGLER EMIL DIPL ING
IPC: B28B23/00
Filed: 1978-06-05
Abstract: A multi-layered building element is made up from two or more components, of concrete or mineral or other materials and a heat-insulating layer, the components being held together by plug-connectors. Each plug connector (6) is prismatic in shape, incorporating a fishplate configuration. It has barbs (7), on its tow largest surfaces, parallel to the shorter fishplate side. In its centre, the connector pref. has an open spacer area (11) between the profile units, matching the thickness of the heat-insulating layer. It may be made of plastics, or similar heat-sensitive material, surrounded lengthways by a clamp of steel wire or other heat-resistant material.
Patent DE-2829506-A1 (DE)
Title: Single-sided plating on transfer jacquard rib machines - knitting silk on cylinder, and cotton on cylinder and dial needles
Inventor: SONDOWSKY HARRY
IPC: D04B1/14
Filed: 1978-07-05
Abstract: The silk is only visible on the standing needles of a two-bed, Jacquard, transfer, fine rib, knitting machine, during the operation of a single-sided, silk-plating system in which the other side is knitted on cylinder and dial needles. The silk is fed by an additional yarn guide, beneath the dial needles directly to the cylinder needles, and the standing needles cast off six needles earlier than the lieing, rib needles of the dial. Espec. advantageous in the prodn. of undergarments, the greater comfort of the cotton against the skin being combined with the visual effect of the silk.
Patent DE-2831630-A1 (DE)
Title: Synthetic crystalline chromium silicate - with zeolite structure, useful as catalyst in (hydro)cracking processes
Inventor: MAROSI LASZLO DIPL CHEM DR
IPC: C01B39/08
Filed: 1978-07-19
Abstract: Cr silicate has a zeolite structure and is prepd. by crystallisation from a mixt. of water glass and an aq. soln. of amine at a temp. 100-200 degrees C, under soln. pressure, and in the presence of Cr(III) oxide and/or Cr(III) hydroxide. Pref. the zeolite is prepd. using a mixt. of water glass (25-30wt.% SiO2, 8wt.% Na2O) and Cr nitrate, -sulphate, or -chloride. A Cr(III) silicate gel is also suitable. To the mixt. is added 5-50wt.% (10-25wt.%) hexamethylenediamine. The mixt. is heated for 2-4 days at 140-160 degrees C. The resultant Cr silicate has a zeolite structure but contains only a small amt. of Al. The prod. contains 0.5-3wt.% Cr2O3. Crystalline Cr silicate zeolite belongs to the ZSM-5 type and is suitable as catalyst, after activation, in cracking and hydro-cracking processes and in teh conversion of methanol into unsatd. hydrocarbon.
Patent DE-2831936-A1 (DE)
Inventor: BAUMANN ANNEGRIT DIPL CHEM DR
IPC: A01N57/16
Filed: 1978-07-20
Abstract: 1. Thienylmethyl-dithiophosphoric acid esters of the formula I  see diagramm : EP0007544,P14,F1  where R**1 denotes methyl or ethyl, R**2 is linear or branched alkyl of up to 5 carbon atoms, Z denotes halogen, and n denotes one of the integers 0, 1, 2 and 3.
Patent DE-2832059-A1 (DE)
Title: Power supply overload protection - has current sensor and actuator disconnecting subsidiary loads if their current demands endanger supply
Inventor: GALL RICHARD
IPC: H02H3/033
Filed: 1978-07-21
Abstract: A typical application is to the subsidiary circuits in an electric cooker, or portable electrical equipment. The circuit ensures that if the current in a principal load is as high as the supply can safely carry, then any additional loads, whether connected or not, at the time, are automatically switched out. A current sensor and measuring device (4) in the circuit between the main load (1) and the supply (5) controls a contact (6) in one lead to a secondary load (2). The secondary load may, for example, be a socket outlet on a cooker. A cascade connection may be employed whereby a second current sensor (4') controls a contact (6') in the lead to a further load (3) of low order.
Patent DE-2838466-A1 (DE)
Title: Adhesively fixed wall plug - has bush fitted with clearance in blind bore and secured by injecting setting agent
Inventor: BERNACK GUENTER
IPC: F16B13/14
Filed: 1978-09-04
Abstract: The arrangement is intended for fixing a securing element (1) in a wall (3). An anchoring bush (1) is inserted into a blind bore (2) in the wall to leave an annular space (6) around it. A substance contg. a hardening agent is then injected (11, 12) into the bush whilst holding the latter in position (10a) the substance being prevented from reaching the forward fixing end (7) of the bush. When the space is fulled, the injector (10) is withdrawn. The bush may have one or more openings through which the substance can pass, the resistance to flow through the openings reducing the direction of injection.
Patent DE-2839452-A1 (DE)
Title: Topper for root crop harvesters - has support wheel held in contact with ground by swing arm with biassing spring
Inventor: FROEDRICH MARTIN
IPC: A01D23/02
Filed: 1978-09-11
Abstract: The topper for a root crop harvester has a heading blade, whose height is controlled by a pivotable sensor wheel according to the crop position. A support wheel fitted to the roller holder limits the lowest sensor wheel position and there is a spring device to vary the wheel hold-down force. In the working position, the support wheel is held permanently in contact with the ground on a pivotable swing arm (6, 6'). A spring device (2, 11, 15) is fitted between the spring arm (6, 6') and a height variable section (5) of the roller folder (4). This so loads the holder (4) that when the roller (2) is low, a moment is produced which reduces the roller hold-down force.
Patent DE-2843089-A1 (DE)
Title: Seal for cable distributor plug consists of flexible foam - esp. polyetherurethane with two holes linked by tangential cut
Inventor: KRETSCHMER KLAUS
IPC: H02G15/013
Filed: 1978-09-29
Abstract: Seal for a casting used for the prodn. of an electric cable distributor plug consists of a flat, pear-shaped foamed plastics pt., which has a hole through the head and is cut along the axis of symmetry of the neck. It consists of a flexible foam, esp. (polyether) polyurethane foam (with a bulk density of 30-50 kp/m3). There are 2 holes, one behind the other along the axis of symmetry, and a tangential cut between them.
Patent DE-2843831-A1 (DE)
Title: Sheet folding surface for printing machine - has gripper coating containing hard particles standing proud of sheet supporting surface
Inventor: MEYER ROLF
IPC: B65H45/16
Filed: 1978-10-07
Abstract: The retaining element is designed for printed paper being folded in a roller printing machine whose sheet gripping surface is provided with a wear-resistant gripping coating. The coating contains abrasive particles (4) which stand proud of the coating, and a filler layer (5) which partly fills the spaces between the particles and forms the surface (7) which limits the amount by which the particles enter the paper gripped by the surface. The filler may be binding agent holding the particles. The particles may be diamond grit or may be metal particles.
Patent DE-2901495-A1 (DE)
Title: Quadrant operating control for current regulated three=phase machine - with drive and braking for both rotation directions which varies pole control angle with controlled thyristor firing sequence
Inventor: GRUPE KURT DIPL ING
IPC: H02P25/03
Filed: 1979-01-16
Abstract: The control circuit provides a differing pole control angles, e.g. the angle between the stator current and the pole wheel voltage. It uses a multiple of six detectors supplying pulses to a logic coupling circuit, together with signals representing the required pole control angle. The logic coupling circuit delivers output signals to six parallel lines coupled to individual rectifiers in the AC bridge circuit for the machine, to maintain the required cyclic sequence. Pref. the four pole control angles used are 0, 60, 120 and 180 degrees, with the first and last used for low rotation rates, below 10 per cent of the normal rotation. The thyristor bridge circuit pref. comprises three pairs of parallel thyristors (R1, R2; S1, S2; T1, T2) the machine windings coupled to the junctions between respective pairs.
Patent DE-2901524-A1 (DE)
Title: Removable control unit for TV receiver or audio appts. - has transmitter held in position by spring and cover plate for remote control operation
Inventor: LEHNARDT LOTHAR
IPC: H04N5/64
Filed: 1979-01-16
Abstract: The control unit fits into an aperture in the housing of the device and is removable from the latter to allow it to be used as a remote control unit, the transmitter positioned on the side of the unit which faces inwards when inserted in the housing aperture. This aperture is closed by a cover plate, which is pushed inwards by insertion of the control unit, against a spring biasing it into the closed position. The spring force is greater than the combined weight of the cover plate and the control unit. The cover plate has a stop lip at its free edge, so that in the closed position it is retained flush with the front of the housing and it is held within the housing by a catch acting on the bias spring and released by further inwards depression of the cover plate.
Patent DE-2902131-A1 (DE)
Title: Incineration of chlorinated organic cpds. - with cooling of combustion gas with hydrochloric acid soln. and injection of hydrogen to reduce the chlorine content of the gas
Inventor: HARWELL LESLIE JAMES
IPC: C01B7/01
Filed: 1979-01-19
Abstract: In a process for incinerating chlorinated organic cpds. contg. nearly equal to 20-70% Cl, the cpd. and air are fed continuously to the combustion zone of an incinerator whose walls are held at nearly equal to 800-1500 degrees C. The gaseous combustion prods. are led into a rapid cooling zone which is cooled by spraying with aq. HCl soln. Hydrogen is led into the cooling zone at >=1 points where the temp is similar or equal to 450-1000 degrees C. The amt. of air introduced into the combustion zone is such that is provided 1-40% more O2 than the theoretical amt. for complete combustion of the organic cpd. to convert all the C atoms into CO2, with combination of the Cl atoms with sufficient of the H atoms into HCl and conversion of all the remaining H atoms into H2O. The amt. of hydrogen injected into the cooling zone is expressed by Z=(0.1-1).m where Z is the vol. % hydrogen w.r.t. air passed into the combustion zone, and m is the vol. % O2 in the cooling zone w.r.t. all the gases present in the zone with the exception of water vapour and HCl. Process gives high conversion of the chlorinated cpds. into HCl with reduced levels of molecular chlorine in the combustion gases, thus reducing atmospheric pollution. This is achieved without introducing superheated steam into the combustion chamber as in previous processes, which lowers the combustion chamber temp. and increases the energy requirement for the process. The process is useful eg for treating chlorinated by-prods. produced during the mfr. of chloroprene and chlorinated pesticides.
Patent DE-2903001-A1 (DE)
Title: Fume extractor for piercing press - uses two filters in series with fan to clean lubricant fumes
Inventor: ALBRECHT KARL
IPC: B21C27/04
Filed: 1979-01-24
Abstract: A piercing tool has a die with a ring which encloses an annular space. The die required the application of lubricant before operation, but the heat generated during the operation produces fumes from the lubricant. To remove these fumes, the annular space is connected by pipes to a primary filter with a drain and water trap. The fumes are then drawn through the valve by a fan and pass through a wet filter before being expelled to the atmosphere. The suction of the fan can be shut off, when applying the lubricant, by the valve.
Patent DE-2903450-A1 (DE)
Title: Coin-box reverse charging and other facilities - employs credit card scan and user dialled code into exchange store to verify user
Inventor: POLLACK WOLFGANG
IPC: G07F7/00
Filed: 1979-01-30
Abstract: The coin box telephone automatically scand a credit card provides the caller with charging information and allows the called subscribers meter to be charged. The credit card scan by the coin box telephone provides the exchange common control stores with an identification signal and the user of the coin box must also dial in a user code to gain access to the reverse charging and special facilities. The coin box unit is equipped with a slit into which the credit card is put for scanning. The coin box telephone is connected to the switch block and through it is connected to the common controls and for the special credit card facilities it is able to access the supplementary storage so that card identification, user code etc. can be stored directed to the common control and output to the called subscribers metering equipment or other facilities.
Patent DE-2906611-A1 (DE)
Title: Colour TV CRT with shadow mask - has horizontal mask strips with parallelogram vertical cross=section in upper and lower mask sections with inclined upper and lower edges
Inventor: SCHAAL ARTUR ING GRAD
IPC: H01J29/07
Filed: 1979-02-21
Abstract: The shadow mask of the colour t.v. c.r.t. has high mechanical stability combined with the slightest possible electron screening. The electron passing apertures of the shadow mask are arranged in vertical rows and separated by horizontal transverse strips (6). At least in the upper and lower region of the shadow mask, the latter have a parallel-orgram-shaped, vertical cross-section (8). The upper and lower surfaces (7) of the transverse strips extend at an angle to the vertical line in the direction of electron beams (10), passing through adjacent slots. Pref. the upper and lower region comprises a quarter of the shadow mask surface. In the mask prodn. the electron passing slots (2) are formed by etching of the mask metal sheet from both sides, while the reference points for the etching process are offset to obtain the parallelogram-shaped arrangement.
Patent DE-2906892-A1 (DE)
Title: Monitor for spindle of drilling machine - has piezoelectric sensor on shank of drill to measure radial and axial forces
Inventor: TISCHER KURT MANFRED DIPL PHYS
IPC: B23B47/24
Filed: 1979-02-22
Abstract: The monitor for tool breakage, wear and control uses a sensor subjected to the cutting force. The sensor exploits the piezoelectric effect and is located on the shank of the drill at the place where it joins the machine's spindle. The sensor is normal to the axis of the drill. The sensor measures the radial force exerted on the drill or it may be located so as to measure both radial and axial forces. The electrical signal from the sensor is passed to evaluating circuitry that compares the sensor's signal with a stored set of references. The comparator's output is displayed or passed to the machine tool's control unit.
Patent DE-2910407-A1 (DE)
Title: Telescopic underground cavity stiffener clamping rink - has wedge jaws for gear in clamping frame on axially hinged halves
Inventor: BUTTLER ERNST
IPC: E02D17/08
Filed: 1979-03-16
Abstract: Continuously adjustable tubes, with a connecting clamp ring axially divided into halves, with bolt connection make up the telescoping earth cavity stiffening devices as used in underground railways and elsewhere. The ring halves (10, 11) are linked by an axial hinge (12). On their open edges they have radial wedge faces (20, 21) forming parts of a wedge gear in a clamping frame. Drive for this is provided by a tension bolt coaxial with the hinge bolt (13). This is widely applicable, with heavier loads transferable via the ring.
Patent DE-2917353-A1 (DE)
Title: Monocrystalline aluminium foil prodn. from polycrystalline foil - by zone melting on horizontal support, useful for metal fatigue determn.
Inventor: SAHM KARL-FRIEDER DIPL PHYS DR
IPC: C30B13/00
Filed: 1979-04-28
Abstract: In the prodn. of a monocrystalline foil, the foil on a horizontal support is heated to under 0.1 deg.C below its m.pt., so that monocrystalline zones with pref. (100) orientation form in A1. The process is carried out by zone melting and the orientation is preselected by a seed crystal. The foils are used in the non-destructive testing of structural pts., e.g. of aircraft, for fatigue. The process allows the continuous prodn. of very thin monocrystalline foils with definite orientation.
Patent DE-2923569-A1 (DE)
Title: Screwless cable connector - with contact springs embedded in plastic sleeve closed by press buttons
Inventor: WINTER JOERN
IPC: H01R4/48
Filed: 1979-06-11
Abstract: Connector for electrical wires consists of a plastic element (polyamide, PVC or polyethylene) of square cross-section with a rectangular through hole and two horizontal slits across both ends. Two leaf springs are embedded inside top and bottom to ensure the contact between two bare wires inserted from each end. The connector ends are provided with pairs of press studs so that they can be opened out and snapped shut after insertion of the wires. In case of currents of more than 3A, the contact springs must be laid into a metal cage for better heat dissipation. This creates a connector for do-it-yourself jobs which needs no tools or screws.
Patent DE-2924534-A1 (DE)
Title: In-line fluid flow machine for insertion between pipe sections - has accessible generator or pump outside flow path of fluid
Inventor: WIESER RUDOLF DR
IPC: F01D9/06
Filed: 1979-06-19
Abstract: The pump housing (1) has a central suction opening (2) which is flanged, and two spirally formed lead-in tubes (4) ending in cast flanges (4a). On the electric motor (5) side, the pump housing (1) is closed by the housing cover (6) and motor carrying flange (6a), the housing cover (6) containing the gland housing (8) and vane ring (7). The shaft (9) of the electric motor is led through the stuffing gland (8) and carries the impeller (10). The two-armed mounting frame (11) is screwed to the flanges, this frame serving as the fluid medium delivery pipe, and is stiffened by being joined together by a metal cross brace (12). The length (L) of the support frame (11) is large enough to allow the motor, housing cover, impeller and vane ring to be withdrawn for servicing in one piece. The arrangement is suitable as a turbine or inline pump.
Patent DE-2929574-A1 (DE)
Title: Flexible metallised sandwich key-pad - has flexible press-button cover with convoluted metallised underside held above baseplate contacts by insulator
Inventor: TESSENDORF GUENTER ING GRAD
IPC: H01H13/785
Filed: 1979-07-21
Abstract: Keypad switching unit with contact material located on the underside of the flexible cover so that when depressed it contacts a lower contact across a separation void. The flexible keypad cover (1) is made of insulating material and coated on the underside with metal foil (2) so that when depressed (direction arrow 8) each separate marked keypad position contacts a conducting material (7) on a portion of the baseplate (6). The metal foil (2) is of a sprung type such as chrome nickel steel with thickness 0.1 to 0.3 mm and has a convoluted structure over contact area so that the raised points make contact with the base contact. The metal foil is glued onto the flexible keypad cover. The flexible cover (1) with metal foil (2) is separated by insulating spacer (5) from the base plate (6) so that the separate key positions can be formed in the insulator spacer (5).
Patent DE-2930282-A1 (DE)
Title: Lactose prepn. from whey - using sugar factory equipment pref. protected against corrosion by adjusting raw material pH
Inventor: HAYER HELMUT DIPL ING
IPC: C13K5/00
Filed: 1979-07-26
Abstract: Lactose is prepd. in a sugar, or saccharose factory, using standard sugar factory machinery or equipment. The raw material for lactose prodn. is pref. set to pH above 7, so that the sugar factory equipment is not exposed to corrosion. Sugar factory equipment, used for only 3 months a year in sugar mfr., can be adapted economically for whey processing to lactose.
Patent DE-2930553-A1 (DE)
Title: Melt-spun filament cooling shaft - has an air feed with adjustable cross=section to give various air speed profiles
Inventor: FOURNE FRANZ
IPC: D01D5/092
Filed: 1979-07-27
Abstract: By adjusting the dimensions of the airflow into the blow shaft, to cool the melt-spun filaments, a number of airspeed profiles can be developed, with no air distributors inserted into the air feed pressure housing. There are a number of standard profiles which can be developed, such as a constant speed profile, a bow-shaped profile, a triangular speed profile and a waisted speed profile. Designed partic. for cooling melt spun filaments of polyamide, polyester or polyolefin, the system gives a low air consumption with a wide flexibility of use.
Patent DE-2934437-A1 (DE)
Title: Compression ignition engine injection timing mechanism - has spring-loaded advance lever with valve-controlled servo
Inventor: DIETER FUCHS KLAUS
IPC: F02D1/18
Filed: 1979-08-25
Abstract: The mechanism adjusts tha injection timing on a fuel pump for a compression-ignition engine, particularly in a motor vehicle. It has a lever acting on an adjusting member in the pump, and advancing timing dependent on engine temp. The lever (8) is spring-loaded by a tension spring (10) in the advance direction, and thrust in the opposite direction by a pressure pressure or vacuum servo (18), connected by a pipe (42,44) to a pressure or vacuum source (46), e.g. an exhauster. Above a set temp. threshold value in the engine a valve (30) in the pipe cuts off the servo from the source.