baber/WOPTO huggingface dataset:
Patent DE-2623326-A1 (DE)
Title: Fault current safety circuit built into plug - automatically connects safety lead to earth or lead not at dangerously high voltage
Inventor: LAUERER FRIEDRICH DIPL ING
IPC: H01H71/32
Filed: 1976-05-25
Abstract: A fault current protective switch is very sensitive and is built into a plug. It is intended for protection against accidents from shocks. The switch will automatically connect the safety lead of the equipment to the earht lead or to the lead in the mains which is not carrying a dangerously high voltage with respect to earth. The measurement of the mains voltage with respect to earth on the measurement of the line floating above earth may be performed via a human body in series with a high Ohmic resistance and a capacitance of the connected line.
Patent DE-2631243-A1 (DE)
Title: Axial turbine sealing rotor disc - involves sealing unit with erosion sensitive material lined inner surface
Inventor: CARRA CARLO
IPC: F01D11/08
Filed: 1976-07-12
Abstract: Turbine rotor disc manufacture and assembly method involves the following stages: production of the rotar disc (1) and pressing it on to its corresponding shaft (2); production of a tubular sealing component (3) with cylindrical or concave inner surface made of material capable of erosions. Assembly of the rotor disc (1) and the tubular sealing component (3) and the fitting of them tightly together by erosion of the rotor disc (1) inside the sealing component (3). In this process, the rotor disc (1) is rotated around its axis; fixture of the sealing component (3) on to a support (4) and location of the rotor disc shaft (2) on the same support (4). The erosion material used is a mixture of cement and kaolin fibre.
Patent DE-2633175-A1 (DE)
Title: Mass produced printed or integrated circuit test aid - using printed connectors on the substrate common to several circuits with automatic testing before separation
Inventor: DEUSCH HELMUT
IPC: H05K1/02
Filed: 1976-07-23
Abstract: The method of manufacturing mass produced printed even integrated circuits which aids automatic testing, includes the printing of suitable connectors on a substrate carrying a number of circuits which can be tested in a common apparatus before being separated from the mother substrate. A number of circuit boards, or integrated circuits (14) are carried on a single substrate (10) or mother board, and each circuit (14) is defined by a stamped groove (12) which allows the circuit to be separated from the mother board (10) when required. A number of printed conductors (18, 20, 22, 24, 26) straddle these grooves and allow contact between suitable edge contacts (28, 30, 32, 34) and the circuits (14) so that a test of each circuit can be conducted, via these conductors before individual separation is undertaken.
Patent DE-2636630-A1 (DE)
Title: Communications modules housing structure - has two uprights forming cable guide and supporting circuit board units
Inventor: FUELLER JOHANN ING GRAD
IPC: H04Q1/14
Filed: 1976-08-13
Abstract: The housing for communications modules comprises two uprights forming a cable guide, with contact pins (5, 9) to which the service cables and the loop cables are connected. Each of the communications modules (1) has a printed circuit (2) across its rear face carrying the internal wiring for the module. Each printed circuit (2) has perforations (20) through which the contact pins (5, 9) can pass to contact the conductors of the printed circuit (2). Each module has means for receiving circuit boards, with a terminal connector allowing it to be connected to the contact pins (5, 9).
Patent DE-2640931-A1 (DE)
Title: Igniter circuit for liquid or gaseous-fuel burner - has heated bi-metal strip to prevent operation a second time prematurely
Inventor: SCHWARZ SIEGFRIED
IPC: F23N5/20
Filed: 1976-09-08
Abstract: The igniter circuit has a timer (3, e.g. a heated bi-metal strip 4, 5, 6) which holds back the fuel injection (37) until the blower (38) is running (i.e. until the strip, in bending, trips a lever (10) and so makes a contact (11, 12)). The same timer terminates an unsuccessful ignition attempt, releases, and breaks the contact between (21) and (23). The circuit prevents an ignition programme from starting unless the timer is in its initial stage (bi-metal strip cool). At the start of the ignition programme, the flame relay (1) closes and, in the absence of a flame, immediately opens again. The relay armature (14) operates an inertial element (26), which seeks to break a contact (21, 22) in the power supply lead. A rod (30) on the bi-metal strip prevents the movement when the strip is cold: otherwise one contact strip moves, and is held by magnets (28, 29) until the cooling bi-metal strip brings the rod (30) back to release it.
Patent DE-2648312-A1 (DE)
Title: Perpetual calendar for advertising purposes - has socket with large vertical area comprising two parallel side members to accommodate seven columns
Inventor: BOLLSCHWEILER HANS-REINHOLD
IPC: G09D3/02
Filed: 1976-10-26
Abstract: Perpetual calendar for advertising purposes has socket with large vertical area comprising two parallel side members. The vertical area (2) of the socket (1) forms an upper attachment consisting of two side members (3, 4) which are arranged at a distance from each other. The upper section of the attachment (2) comprises a rear wall (6) and a transparent front panel (7) which are connected to the side members (3, 4). A cavity (12) is formed between the rear wall (6) and the transparent front panel (4) and is open towards the top. It houses seven, pref. square, columns (13) arranged adjacent to one another. The outside of the columns feature dates.
Patent DE-2656334-A1 (DE)
Title: Melt adhesive backed wallpaper - mfd. by coating back of paper with resin and wax mixt., and put up by melting mixt. with heat
Inventor: HAAS HERMANN
IPC: B44C7/00
Filed: 1976-12-13
Abstract: Wallpaper is produced and hung by coating the rear surface with a melt adhesive, rolling up following setting of the adhesive, laying the wallpaper against the surface to be decorated, heating the front surface to melt adhesive to plasticise it and pressing it against the surface. Heating of the wallpaper front surface may be effected using an iron, hot gas or a hot air fan and the pressing of the wallpaper against the surface may be effected using a brush. The wallpaper can be hung easily.
Patent DE-2657586-A1 (DE)
Title: Pressure surge suppression unit for ink jet printer - has Tesla valve positioned where ink feed channel enters spray head
Inventor: ZEISING NORBERT DIPL PHYS
IPC: B41J2/055
Filed: 1976-12-18
Abstract: The damping unit esp. for an ink jet printing head suppresses the pressure surges arising between the ink supply chamber and the ink spray head. To achieve this an e.g. Tesla valve is located in the supply channel near its entry point into the spray head. The damping element has an inlet (49) and outlet channel (51) coupled together by a channel (53) angled at 45 deg., into whose periphery enters pairs of dead-end holes (55, 57, 59, 61, 63, 65) of which the one member of each pair (55, 59, 63) lies in the direction of flow from the inlet channel.
Patent DE-2708347-A1 (DE)
Title: Gas-filled encased HV line cooling system - has inlet and outlet for fluid coolant diametrically opposite one another through casing wall
Inventor: OLSEN WILLI ING GRAD
IPC: H01B7/29
Filed: 1977-02-24
Abstract: The gas-filled encased HV line consists of an HV conductor (3) which is supported on insulators inside the insulating casing (1). The conductor is cooled by a fluid circulating in the space between the conductor and the casing. The inlet (4) and outlet (5) openings for the coolant are located diametrically opposite one another in the wall of the casing. If more than one conductor is present there are also more than two coolant openings located so that all conductors receive an equal share of coolant. The inlet and outlet openings connect the interior of the casing to external pipes carrying the coolant.
Patent DE-2715391-A1 (DE)
Title: Vibration switch for burglar alarm - has two sets of contacts, one with snap action and other with indicating pin
Inventor: KOENIGS HUBERTUS
IPC: H01H35/14
Filed: 1977-04-06
Abstract: The vibration switch for a burglar alarm has a closed case with contacts which, when the switch is subjected to vibrations, open a circuit which trips a signalling device. The contacts consist of a first, normally closed contact set (13, 14) with a snap-action. When an adjustable amplitude of vibrations is applied to it, it breaks a previously closed circuit. A second contact set (21-23) is provided within the movement or opening range of the first contact set (13, 14). This set also opens when the first contact set opens. It has an indicating pin (20) which projects from the switch case (1) when the circuit is broken. It remains in this position until both contacts (13, 14, 21-23) are again closed.
Patent DE-2722873-A1 (DE)
Title: Introduction of inherent stress to prestressed concrete bending girder - using tension stress members moving common anchor in centering channel
Inventor: BORSDORF HEINZ DIPL ING
IPC: E04C3/26
Filed: 1977-05-20
Abstract: Application of intrinsic stress conditions to flexural stress girders is by simultaneously stressed tension and pressure stress members, esp. in prestressed concrete construction. The direction of the axes of the tension and pressure stress members in the anchorage area are brought to bear in the same plane. With the application of tension stressing forces, the tension stress members (1) move the anchoring unit (4) in a centering channel, in the direction of the pressure stress member (2), so as to press a compensating plunger (6) into the latter member's sheath channel, via contact forces emanating from the anchoring unit. This abbreviates the lateral deviation of pressure bars under the influence of the force. This provides a closed equilibrium state in every condition, using only the stabilising effect of the girder without subjecting it to stressing forces.
Patent DE-2723960-A1 (DE)
Title: HF transmission of coded digital speech signals - has series signal flow converted into parallel flow in blocks, applied to several sub-channels
Inventor: BARFUSS REINHARD ING GRAD
IPC: H04K1/00
Filed: 1977-05-27
Abstract: Signals are transmitted by TDM by a frequency shift keying modem. The transmitter converts the series data flow by a series-parallel multiplexer through a coder (FCS) into a parallel data flow divided in blocks and applied to a number of subchannels with different, discrete frequencies forming a frequency frame. A synchronism testing pattern is added to the synchronous data flow. This pattern is sequentially scanned in the receiver in each subchannel by a correlator, for derivation of synchronisation pulses which synchronise the subchannel data flow in the channel frame.
Patent DE-2726672-A1 (DE)
Title: Link connecting interior earthing strip to exterior electrode - is suitable for building into concrete wall and has insulating sleeve (SW 13.11.78)
Inventor: HAUFF WERNER
IPC: H02G3/22
Filed: 1977-06-14
Abstract: The link comprises a conductor (3) with a blind tapped hole (4, 5) in each end. It is covered by an insulation sleeve (20). The link assembly can be placed into the wall whilst it is being constructed, and in this way a good seal is formed round the assembly. The insulation sleeve prevents erroneous earth resistance values being measured as it isolates the conductor from any moisture in the wall. The sealing may be improved by an outer hard foam coating (18) on the sleeve which bonds well both to sleeve and wall material. The ends of the sleeve may be flared (16) to provide axial location and resistance to axial loads.
Patent DE-2726810-A1 (DE)
Title: Rapid braking circuit for small motor - short circuits machine for preset time and has two semiconductors of which second operates under control of timer
Inventor: MAIDA OSAMU
IPC: H02P3/12
Filed: 1977-06-14
Abstract: The motor (M) is under the influence of a controller (2) which either opens or closes the circuit through the motor by means of a semiconductor (Tr1). When in the off state the controller (2) brings into conduction a second semiconductor (Tr4) which short circuits the motor and thereby enhances its retardation. The second semiconductor (Tr4) is additionally controlled by a timing circuit comprising a resistor, capasitor, diode, and an amplifying transistor (R1,C1,D1,Tr3) which serves to maintain the short circuit for a predetermined time or until the controller switches the motor on again. The controller holds the timing circuit in the charged state but not conducting when the motor main circuit is closed. The connection eliminates the possibility of the braking circuit being switched on by a spurious signal.
Patent DE-2727981-A1 (DE)
Title: Cutting and transportation process for timber pieces - uses two opposite feed channels, in timber cutter with continuous operation
Inventor: KOESTERMEIER KARL-H
IPC: B27B5/20
Filed: 1977-06-22
Abstract: The process is for use with a bladed shaft timber cutter. The timer sections(1) are moved in direction of feed(C) by the length(B) of a timber package(2) within a timber feed channel(3), where it is compressed on all sides. It is then compressed on two sides in a container(10a, b) and out to the required length. The timber package(2) thus formed, together with the residual pieces, is moved discontinuously, still under pressure, to a conveyor, which continuously moves it to a chain duct(25) and to a blade shaft(26). This ensures that newly moved timber comes into fibre-parallel contact with the timber still in the conveyor. When the first container(10a) moves its timber into the conveyor, the second container(10b) is already being loaded.
Patent DE-2728363-A1 (DE)
Inventor: KUBICKI STANISLAW
IPC: B65H59/18
Filed: 1977-06-23
Abstract: The delivery unit has a delivery roller (1) and a pressure roller (2). The pressure roller (2) is mounted in a leg (4) which is pivotable about a pivot point (8). The leg is connected to an arm (5). A thread guide (6) is located at one end of the arm (5) and a weight (7) is located in the region of the opposite end of the arm (5). The thread loops round the delivery roller (1) and the pressure roller (2). The pivot point (8) and the axis of the pressure roller (2) define a straight line X-X. When the unit is in operation, the axes of the pressure roller (2) and of the delivery roller (1) define a further straight line Y-Y, the said two straight lines forming an angle  alpha . The pressure roller (2) is pressed against the delivery roller (1) as a result of the tension of the thread. If the thread tears, the weight (7) causes the arm (5) to pivot and the pressure roller (2) to lift off from the delivery roller (1). This very simple construction works reliably and results in fewer thread breaks than hitherto. <IMAGE>
Patent DE-2728449-A1 (DE)
Title: Expanding socket wall mounting - has screw with integral centring point and panel spaced from wall by coil-bound spring
Inventor: GEIGER ERICH
IPC: F16B5/02
Filed: 1977-06-24
Abstract: The screw mounting with expanding socket secures an item in position clear of a wall. The screw has a centring point(1) engaging in the socket(4) and integral with the screw. The point can be a relatively long cone with proportions of 5:14-16, and the screw shank(2) can have roughly the same external dia. as the socket. Both screw and socket can be relatively long, to accommodate a distance piece(5) round them, the distance piece being typically a coil spring.
Patent DE-2728480-A1 (DE)
Title: Wheel nut and cap prodn. - by compressing cap and nut between welding electrodes and generates current impulse
Inventor: CHAIVRE JOSEPH WILLIAM
IPC: B23K11/30
Filed: 1977-06-24
Abstract: The process produces a wheel nut with polygonal spanner face and a conical end bearing against the wheel, together with a cap of corrosion-resistant steel, enclosing the spanner faces and the end opposite the conical one, ending near the join between the latter and the spanner faces. A first electrode is pressed against the conical nut end and a second one against a portion of the cap bearing directly against the nut. An electrical impulse is generated between the electrodes, having a duration of 30 micro-secs. and a current peak value >50,000 amperes. This forms a weld between cap and nut at a point close to where the second electrode bears against the cap, causing no negative metallurgical alterations in the cap materials.
Patent DE-2735312-A1 (DE)
Title: Single wave optical fibre - has core of higher refractive index with ellipsoidal cross=section and two sheaths
Inventor: UNGER HANS-GEORG PROF DR ING
IPC: C03B37/027
Filed: 1977-08-05
Abstract: The cross-section of the core of higher refraction of the optical fibre is surrounded by an inner sheath of lower refractive index which has a ring-shaped ellipsoidal cross-section and has lying on it another sheath. The outer sheath has a higher refractive index than the sheath underneath it and consists of weakly absorbent material. The ellipsoidal core may have a refractive index profile which gradually decreases from a max. refractive index on the fibre axis outwardly to the refractive index of the inner sheath.
Patent DE-2735659-A1 (DE)
Title: Cutter for individual coiled or straight wires - has cutting blade moving directly above armature movably mounted between pole shoes of two AC magnet pairs
Inventor: BLUMBERG DIETER
IPC: B26D5/08
Filed: 1977-08-08
Abstract: The cutting blade (1) of the wire cutter is activated by two opposite electromagnets. The blade is directly moved over a magnet armature (13) which is movably mounted between the pole shoes of alternating current magnet pairs (2, 3). The magnets are excited by capacitor discharge. The excitation of the magnet coil group (3) for the resetting movement is carried out with an adjustable delay. The cutting force is preferably transfered to the blade from the magnet armature via yoke rods (12) and bearing bolts (6). The cutter has a counter blade (4) in the shape of a disc with several nozzle-like bores for retaining the wires to be cut. Plate springs (14) provide the desired dampening.
Patent DE-2737217-A1 (DE)
Title: Gas fired appts. ignition, monitoring and control equipment - has master valve closed by output control thermostat operated low load cut=out
Inventor: FLAIG ROLF
IPC: F23N5/10
Filed: 1977-08-18
Abstract: The ignition, monitoring and control equipment for gas fired apparatus is basically conventional with an electro-magnet controlled master valve (20) and thermostat (43) control for the main throttle valve (34). However the thermostat operated bellows (42) on that valve are also mechanically linked (75) to a switch (52) in the power supply (65) to the control box (26). If heat demand drops so low that, after closure of the throttle valve, and gas flow through a bypass set to min. safe burner firing rate is still excessive, the bellows continues to expand and opens this switch, releasing the master valve.
Patent DE-2737754-A1 (DE)
Title: Automatic electromechanical calendar system - has geared unit to operate together with cam to ensure correct monthly changeover
Inventor: MERKLE PAUL
IPC: G09D3/08
Filed: 1977-08-22
Abstract: A differential drive mechanism is intended to produce automatic display changeover in mechanical calendar systems. The differential drive consists of a planetary gear unit (8) with a drive shaft coupled to an electric motor. An intermediate gear is used to drive a gear controlling the monthly display. A cam (16) is controlled by a lever (29) in conjunction with stops (m, k) to ensure that the correct changeover takes place. Reliable automatic action is achieved.
Patent DE-2738444-A1 (DE)
Title: Mounting block for moving iron meter - has field coil body latches and indicator axle bearing fitting
Inventor: STURM WALTER ING GRAD
IPC: G01R5/14
Filed: 1977-08-26
Abstract: A mounting for a moving iron meter carrying. The indicator axle bearing and the field coil body is designed for economical coil body and mounting using a coil body material whose elastic properties enables simple calculation of the most suitable shape. On the side of the mounting nearest the field coil are projections into which fit latches on th coil body. Lugs on the side of the coil body remote from the mounting enable a screen top to be fitted over the coil.
Patent DE-2740971-A1 (DE)
Title: Vertical support frame holding circuit units - contains slide-in sub-units with printed circuit boards and has front and rear connectors
Inventor: GOLDHORN BRUNO DIPL ING
IPC: H05K7/18
Filed: 1977-09-12
Abstract: The vertical frame is designed for support units holding slide-in subunits contg. printed circuit boards, has the slide-in subunits (2) adjacent to one another in the main units (1) and the main units stacked one above the other in one section of the frame comprising two vertical memers. The slide-in subunits have connectors on their fronts. The external cables (5) pass from connectors (8) at the rear of each unit to the connectors at the front.
Patent DE-2745052-A1 (DE)
Inventor: KAWAMURA YOSHIKAZU
IPC: G04C3/14
Filed: 1977-10-06
Abstract: A step motor driving control mechanism for use in an electronic timepiece for reducing the current consumption thereof is provided. Load detection circuitry detects the load condition of the step motor and selectively produces a load condition signal representative of a predetermined load condition thereof. Driving and control circuitry is provided for receiving a low frequency timekeeping signal produced by a divider circuit and a load detection signal when same is selectively produced by the load detection circuitry. In response to the presence or absence of a load detection signal applied thereto, the drive and control circuitry is adapted to vary the duration of the pulse width of a drive signal applied to the step motor to effect a driving of same.
Patent DE-2745149-A1 (DE)
Title: Improving pigment form of (4,4'-7,7'-)tetra:chloro thio:indigo - using sulphuric acid, followed by hydrolysis
Inventor: LIEDEK EGON DIPL CHEM DR
IPC: C09B7/10
Filed: 1977-10-07
Abstract: Post treatment of 4,41,7,71-tetrachloro thionindigo (I) made by known methods with conc. H2SO4 and subsequent hydrolysis, to improve pigment form. Use of organic solvents, chloro-sulphonic acid salt-milling or heavy-duty mixing equipment to exert high shear forces on the pigment/acid mixt., and their associated health and pollution problems, are avoided.
Patent DE-2752431-A1 (DE)
Title: Folding rear seat for estate car - has squab fixed and locking flap to cover backrest hinge
Inventor: DUVENKAMP MANFRED
IPC: B60N2/30
Filed: 1977-11-24
Abstract: The seat back of the rear seat folds flat down onto the squab, which rigid, with the seat back hinge on a sliding fitting to ensure a compact fold. The gap between the bottom edge of the seat back and load floor of the estate car is bridged by a folding plate (19). The folded down seat provides an enlarged load space without having to fold up the squab. The hinged flap ensures that small articles do not jam the hinge action.
Patent DE-2756070-A1 (DE)
Title: Chilled mould for mfg. cast iron drill - esp. for drilling out the tap-hole of blast furnaces
Inventor: STAEDING WILHELM
IPC: B22D19/06
Filed: 1977-12-16
Abstract: The mould consists of a base contg. a central conical core made of a Cu alloy and inserted in the base from underneath. On the base are two semicircular mould halves with a vertical joint line, and which surround the botton end of a drill rod which sits on the top end of the core during casting so a ring-shaped drill is cast onto the drill rod. The three mould sections are pref. also made of a Cu alloy. The drill rod pref. has a blind conical hole in its bottom end, mating with the top end of the core. The sections combine to form cavities producing the cutting edges on the drill. This reduces the time needed to cast the drills, and ensures that the drill is concentric on the drill rod; when worn, the drill can be knocked off the rod and a new drill can be cast on the end of the rod.