baber/WOPTO huggingface dataset:
Patent DE-2415106-A1 (DE)
Title: Roadway support for mines - has flexible containers filled with liquid inserted between lagging and roadway strata
Inventor: VOELKEL HELLMUTH
IPC: E21D11/15
Filed: 1974-03-28
Abstract: Roof support for mines especially for underground roadways or tunnels includes flexible cushion shaped plastic containers for filling cavities between lagging of the support and the roadway strata. The containers which are filled with a fluid through at least one inlet opening are fitted with at least one safety valve for controlling the pressure inside the containers at a predetermined level. The wall of the containers adjoining the support lagging is reinforced by steel or aluminium plates or rods and the insides of the containers is sub-divided in number of cells by flexible partitions each with an opening for connecting the cells. For easy filling number of containers are connected together by hoses and the fluid with which the containers are filled is either water or a liquid medium which after a predetermined time in the containers either thickens or hardens.
Patent DE-2419399-A1 (DE)
Title: Scavenging of two-stroke combustion engine - from crank case via valves in piston crown
IPC: F02B75/02
Filed: 1974-04-23
Abstract: The process is intended for use with two-stroke engines in which the crank case and piston act as the pump to introduce air in the cylinder. The air reaches the cylinder through orifices in the crown of the piston which are provided with valves. These inlet valves are preferably automatic acting flap or leaf spring valves. The valve arrangement is partic suitable for model aircraft and model ships engines.
Patent DE-2430169-A1 (DE)
Title: Heating element for industrial water tanks - internal jacket is pressed onto heating spiral
Inventor: HARTMANN FERDINAND ING
IPC: F24H1/20
Filed: 1974-06-24
Abstract: The element consists of two cylindrical jackets enclosing a water space. An intermediate spiral projects from one jacket, and is covered by the other, consisting of shett metal, to form the water space into a helical channel. The jacket is pressed onto the spiral, to give a pinch fit. The internal jacket (5) has a helical groove (4). The lower end of the outer jacket (3) has a widened section (8), with a conical surface at one point. Both ends of the outer jacket are flanged inwards, to contact the internal jacket, where they have been fastened by a fillet weld. (12).
Patent DE-2434794-A1 (DE)
Title: Discharge outlet for ink jet printer - ensures that ink is ejected centrally by using dielectric nozzle plate
Inventor: STRECKER RUDOLF
IPC: B41J2/14
Filed: 1974-07-19
Abstract: The dielectric nozzle plate (9) provides an electrode pair (10, 11) with one inner (10) and one outer (11) electrode at the spray nozzle (3) so that by applying a direct potential to them a stress field (13) is created which aligns the ink particle by means of ionisation. The potential is applied to the electrodes simultaneously with each signal transmitted to a ceramic oscillator which produces the pressure in the compression chamber leading to the outlet nozzle (3). The potential applied to the inner electrode amounts to approximately 1 to 5 volts. By so controlling the ink droplet ejection improved print quality is obtained.
Patent DE-2435251-A1 (DE)
Title: Simplified multi-colour offset printing process - transfers at least two colours in series and on top of one another
Inventor: SANDER CONRAD DIPL CHEM
IPC: B41F7/08
Filed: 1974-07-22
Abstract: A partition layer is created between the two differently coloured ink films by using ultra-violet radiation which among other wavelengths has a wavelength of 197.4 nm. The energy density of this wave length is so great that only the sensitive ink whose surface is exposed to the radiation is hardened or cured while the layer nearest the rubber blanket remains in its applied condition. The printing machine for undertaking this process has a single rubber blanket (1, 1a) associated with at least two plate cylinders (4, 4a, 4b, 4c) and an ultra-violet radiation source (5, 5a, 5b) positioned between neighbouring cylinders.
Patent DE-2436956-A1 (DE)
Title: Variable attenuator for telephone system - has digital comparator supplied from modulators and controlling receive and transmit attenuators
Inventor: FLOHRER WALTER DIPL ING
IPC: H04M9/08
Filed: 1974-07-31
Abstract: The variable attenuation circuit for telephone systems has a variable attenuation, varied according to the magnitude of the speech voltage in the transmit or receive channels. A digital comparator (5) determines the speech voltage levels and is controlled by two modulators (M1, M2). One modulator is connected between the telephone stations loudspeaker and receive amplifier (VE), and the other one is connected between the microphone and the attenuator (DES) on the transmit side of the station. The transmit amplifier (VS) is connected between the transmit attenuator and the telephone lines (a, b). The receive attenuator (DE) is coupled between the lines and the receive amplifier. The comparator controls the two attenuators.
Patent DE-2438457-A1 (DE)
Title: TDMA satellite communications system has reserve off-line units - synchronised to main on-line units and continuously checked
Inventor: HINRICHSEN GERHARD ING GRAD
IPC: H04B7/212
Filed: 1974-08-09
Abstract: The TDMA satellite communications system has an off-line unit in the TDMA end station in addition to its on-line unit. Both off line and on line units are synchronised to the operating unit and continuously checked in such manner that the off line unit causes a simulation of the received signal burst by the operating unit multiplex control signal. The on line units synchronising the phase of the off line unit multiplex control signal to the phase of the operating unit multiplex control signal. Additional monitoring circuits may be provided in both the operation and stand-by systems. The latter being formed by the off line units.
Patent DE-2441192-A1 (DE)
Title: Sampling and hold cct - with electronic scanner and storage capacitor supplemented by integrator
Inventor: HARM H DIPL ING
IPC: H03H19/00
Filed: 1974-08-28
Abstract: The sampling and hold circuit, for use partic. in connection with test line measurement techniques in TV transmissions, is designed to meet the norms of the European Broadcasting Union while requiring minimal resources to suppress interference voltages. The circuit has an electronic scanner (5), whose closing time is so selected that the input signal is evaluated with the amplitude frequency characteristic of a split function. It has also a storage capacitor (C1) with pref. a resistance (R1) in series with the capacitor and forming an RC-integration unit. The closing time of the electronic scanner is smaller than the time constant of the RC-integration unit while permitting a desired split frequency filter effect to be attained.
Patent DE-2448888-A1 (DE)
Title: Burnt ceramic esp. for sparking plug insulators - and prepd. by sintering alumina with silica and lime
Inventor: KROECKEL OTTOMAR DIPL PHYS DR
IPC: H01T13/38
Filed: 1974-10-14
Abstract: Burnt ceramic, used esp. as sparking plug insulator, consists of a reaction prod. of >90 wt.% Al2O3 and a mixt. of SiO2 and CaO contains >35% vitreous phase, has a molar ratio CaO:SiO2 of 1:0.8-1:1.3, and opt. contains 0.1-0.5% MgO, added as stabiliser for vitreous phase. Pref. finely divided 91-94% Al2O3, as alumina or electro-corundum, is mixed with 6-9% CaO and SiO2, esp. as CaCaCO3 or CaF2 and quartz sand, mixt. is compressed, shaped and sintered at 1600-1700 degrees C under oxidising conditions.
Patent DE-2454314-A1 (DE)
Title: Machine for closing ends of tubular packets - adjusts for height of supply on the circular storage magazine
Inventor: NIEMEYER WILLY
IPC: B65H3/36
Filed: 1974-11-15
Abstract: The end closing device works at the height of the material on the storage reel, and is made up of fingers which are levers so pivoted that their working ends are parallel to the tube which is being drawn off the magazine. These fingers are on a spindle or carrier which slides on rollers on rails in a channel. The fingers work from the rotation drive by means of other fingers, and are driven pneumatically. There is a counterbalancing weight to balance the weight of the sliding unit. The arm carrying the fingers is tensioned by a cable device linked to the end of a cantilever and anchored.
Patent DE-2454935-A1 (DE)
Title: Photographic camera of self processing type - has motor driven internal film transport system with release control for shutter
Inventor: HOEPFNER CLEMENS
IPC: G03B17/42
Filed: 1974-11-20
Abstract: The photographic camera is of the self developing type and has motor driven rollers for one of the processing stations and a claw for transport of exposed film units from a film cassette to the processing station and having a shutter for illumination of the film units has a shutter release device (11) by means of which the various camera functions are controlled directly or indirectly having a first switch setting in which the release device (11) can be blocked as far as the start position for the motor (12) and can then be moved out to allow further camera functions to occur. Devices are provided which arrest the release (1) (11) in a second position and only free it when the exposure/development processes have occurred.
Patent DE-2456210-A1 (DE)
Title: Staged pattern recognition process - number of classifying characteristics employed increased stage by stage until last uses all
Inventor: HAGER KLAUS DR
IPC: G06V10/75
Filed: 1974-11-28
Abstract: The pattern recognition process is designed for written signs or symbols or speech patterns. The patterns are led through a series of stages similar to each other, only that the number of classifying characteristics employed are increased stage by stage. A plausibility test is carried out at the end of each stage, the results determining whether the processing is to be continued or called to a halt. Given a number, N, of classifying characteristics that would be necessary in extreme cases, the arrangement is such that the procedures is executed in stages less than N, while the last stage is for processing all N characteristics. At least one stage can be switched in front in which a selection from the N characteristics is processed.
Patent DE-2457762-A1 (DE)
Title: Piston and piston rod sealing device - has sealing ring outer edge in oblique piston(rod) groove for max. contact pressure
Inventor: URBASCHEK HERBERT
IPC: F16J/
Filed: 1974-12-06
Abstract: The elastic piston or piston rod seal ring has a rectangular cross-section. It is mounted in an inclined piston ring groove such that the outside seal ring edge forms the largest seal dia. When located in the cylinder the stressing of the seal ring forces it against the cylinder wall. A plastics piston ring, placed in the same piston groove as the seal ring, provides a dry lubricant between the piston and cylinder. Pref. the plastics piston rings is in two parts of different dry lubrication. Characteristics and different deformability. The seal ring is typically of crosslinking polyurethane.
Patent DE-2461438-A1 (DE)
Title: Ice skating board - has two metal runners with sharp rear edges for braking
Inventor: KNOBLOCH HELMUT
IPC: A63C1/00
Filed: 1974-12-24
Abstract: A skating board (1) for use on ice is built like a miniature sledge. It has a horizontal platform (5) that is big enough to locate a pair of boots (6). The front end of the board (7) is curved upwards to form a U-bend for the location of the toe caps (10). On the underside of the board two semi-circular steel profiles (11) are fixed to form runners. The rear ends of these runners (14) have sharp corners for braking the sledge when its front end is lifted off the ice. A pole with a steel spoke at its lower end is used by the skater for propulsion.
Patent DE-2462047-A1 (DE)
Title: Rotary stabiliser for ship - with movable stream lining behind sets of contra-rotating rotors arranged coaxially
Inventor: KOLLENBERGER WALTER DIPL ING
IPC: B63B39/06
Filed: 1974-07-17
Abstract: The ship is stabilised by sets of contra-rotating rotors arranged coaxially, with one rotor inside the other. The amount of stabilising force is controlled by the reactive force from this combination with one rotor slowed w.r.t. the other, and when the inner rotor is pushed out axially. The system operates effectively and is easily controlled by an automatic response system. To improve the effectiveness of the rotors special streamlining guides (23) are positioned on the downstream side of each rotor with the neares face contoured around part of the rotor and the rest of the guide tapering. the guides are movable with the extension of the rotors.
Patent DE-2500143-A1 (DE)
Title: Force and moment measurement in automatic manipulator mechanisms - is performed by light beam which detects deflections of rod
Inventor: HILL JOHN WESLEY
IPC: G01L5/22
Filed: 1975-01-03
Abstract: A motor (20) drives two finger like grips through a geared linkage consisting of a shaft (32) with a differential consisting of several gear wheels, and two sets of parallel levers. The forces and moments produced by the motor drive in the various axes are measured for control purposes by a light beam based transducer arrangement which consists of a number of opaque rods (84) mounted axially in suitable cavities with light beams directed at small photoelectric detectors tangential to the rod inside these cavities. The rods are mounted so that they deflect when the mechanism is driven, and by arranging sets of these detectors in bridge circuits, a measure of the deflection and so the forces and moments involved is obtained.
Patent DE-2502212-A1 (DE)
Title: Gravimetric feeder for material in fluid stream - has an injector for creating vacuum at the material outlet
Inventor: WEBER GUENTER
IPC: B65G53/14
Filed: 1975-01-21
Abstract: The equipment for gravimetric feeding of doses of flow capable or liquid or granular material in a stream of gas or liquid includes an injector over which the gas or liquid stream is guided. The injector is causing a vacuum at an outlet attachment by which the doses of material are sucked in the stream. Before entering the stream the material is sucked by the vacuum in a dosing container which is fitted with a scale. The scale is adjustable to weigh a predetermined quantity of material and when the filling of the container reaches a predetermined level it activates a switch to operate a valve and so to open an outlet for the material from the container in the gas or liquid stream.
Patent DE-2504447-A1 (DE)
Title: Antifreeze compsn. for roads, bridges, ships and aircraft - allowing application in any weather with minimum labour output
Inventor: GROBE WERNER ING GRAD
IPC: C09K3/18
Filed: 1975-02-04
Abstract: Antifreeze compsn. for roads, bridges, ships and aircraft comprises an adhesive in which biochemical particles are embedded, and optional additives. In operation, light rays of all kinds (sun, moon, stars, vehicle light and street lightening) incident on the compsn. stimulate the electrons so that they become released from their orbits and return via 5 acceptor molecules in a hundred-millionth part in 1 sec. The resulting flow of electricity causes heat to be released via the adhesive, preventing formation of ice.
Patent DE-2509026-A1 (DE)
Title: Reclining motor vehicle passenger seat - has entire seat pivoting on transverse axis to give a reclining position
IPC: B60N2/18
Filed: 1975-03-01
Abstract: The seat and back rest are rigidly joined together and carried by a frame (4) which is supported by a pivoted clamp bolt (5) at the back rest end and by a pivoted support arm fixed to a support tube (7) which carries a sleeve (8) in which the clamp bolt (5) slides. The clamp bolt can be arrested in any desired position by spring loaded slide blocks (11) tilted by a toggle roller (13) fitted between them. A hydro pneumatic spring unit is recommended between the subframe and the seat to keep the seat in its principle position. The pivot position could be arranged below the seat surface at the rear edge, in which case adjustable feet supports would be required.
Patent DE-2509155-A1 (DE)
Title: Antiarrhythmic 1,4-benzoxazine derivs - viz N-amindalkyl-3,oxo-3,4-dihydro-2H-1,4-benzoxazine-carboxamides
Inventor: DORNAUER HORST DR
IPC: C07D265/36
Filed: 1975-03-03
Abstract: New 1,4-benzoxazine derivs. of formula (I) and their acid-addn. salts (where R1 is H or 1-4C alkyl; R2 and R3 are H, 1-10C alkyl, aralkyl or phenyl; R4 is H or OHf R5 is H or 1-4C alkyl; R6 and R7 are H, 1-4C alkyl or aralkyl, or NR6R7 is a 4- to 6-membered heterocycle opt. contg. another heteroatom selected from O or NR11 (where R11 is H, 1-4C alkyl, or opt. alkyl-substd. phenyl), or R5 and R6 together can complete a 6-membered heterocycle A is 2-5C alkylene), have cardiovascular activity, esp. antiarrhythmic activity.
Patent DE-2511754-A1 (DE)
Title: Metal or plastic strip substrates coated with intermetallic cpds. - latter applied as powder followed by rolling and heating
Inventor: LOECKMANN HANS WALTER
IPC: C08J7/046
Filed: 1975-03-18
Abstract: In the mfr. of strip workpieces >=1 surface is impregnated with Laves-phase metal powders (intermetallic cpds) so that the metal powders are at least partly embedded in the strip substrate. The parts of the metal powder projecting from the substrate surface are pref. welded together to form a continuous layer and other substances may be added to the metal powder. The pref. substrates are iron, steel, non-ferrous metals such as Cu, brass, bronze, nickel-silver or Al; natural rubber; thermoplastic or thermosetting plastics or block-polymerised polyamide. The coated strip is pref. exposed to energy in teh form of a laser beam, microwaves or ultrasonic. Suitable intermetallic cpds. are e.g. CoMoSi or Co2MO2Si the cpds. being used to provide high resistance to wear or friction, sliding properties, corrosion resistance etc.
Patent DE-2516999-A1 (DE)
Title: Dental aspirator handpiece with interchangeable cannula - has shut off valve and contains spherical ended valve cone
Inventor: WENDEL WOLFGANG
IPC: A61C17/08
Filed: 1975-04-17
Abstract: The dental aspirator handpiece has a rotating holder for interchangeable canula and a shut off valve. A spherical headed valve cone (3) is held on struts (2) and provided in the tubular hose connector (1) of the handpiece at the opposite end to the connector. The rotating holder (4) and hose connector (1) are coupled together by a union nut (8) such that it will axially displace as the valve cone opens or closes with the annular valve seat (9) on the valve cone end, permitting free flow or closing off the stream. The free dia. of the annular valve seat is only a little smaller than the largest dia. of the spherical valve cone.
Patent DE-2525942-A1 (DE)
Title: Despatcher and receiver for pneumatic pipe line systems - has pivoted pipes actuated by magnet with sliding carrier
Inventor: WALTHER JUERGEN
IPC: B65G51/32
Filed: 1975-06-11
Abstract: The despatcher and receiver station is located in an air-tight housing for pneumatic pipe line systems. A pipe line in the housing (1) has two opposite flexible pipe sections (10, 10') with connected pipes (7, 7'). The pipes have side recesses of half the pipe diameter and their free ends are connected via a hinge (11). During despatch or receiving, the pipes may be pivoted sideways by an energised magnet (12). When the magnet is de-energised, the pipes move back into their original position, due to the flexibility of the pipe sections. When a carrier has been received, it slides from the upper tube into the housing, after the magnet, via a lever has swivelled the connected pipes away from the housing side wall into its interior. For despatch, the carrier is inserted into the lower pipe, while the pipes are in the swivelled-out position.
Patent DE-2532610-A1 (DE)
Title: Clinical thermometer with digital display - uses compensated thermistor sensor and servo control drive
Inventor: HUERLIMANN HEINZ
IPC: G01K13/00
Filed: 1975-07-22
Abstract: The rapid-reading thermometer is built into a tube-shaped housing which has a plastics, insulated cone whose tip holds a bead thermistor. The characteristic of the thermistor is linearised by a series/parallel negative temperature coefficient resistor network which is connected to a ten-turn potentiometer and resistance bridge. Output variations are sensed by a proportional control circuit and an amplified signal drives a motor geared to the potentiometer shaft. The other end of this shaft drives a three-drum digital display (5) arranged to show tens, units and 1/10 ths of degrees of temperature. Power is provided by batteries located in the base of the housing and on/off operation is by means of a push-button switch (7).
Patent DE-2533490-A1 (DE)
Title: Cross flow plate heat exchanger - has frame housing with two rectangular cover plates and four hollow connecting struts of triangular cross section
Inventor: OSPELT GUSTAV
IPC: F28D9/00
Filed: 1975-07-26
Abstract: Cross flow plate heat exchanger when a block-shaped laminations consists of several parallel rectangular dividing walls, especially of folded foils. A frame housing encloses the laminations and has two rectangular cover plates near the outer dividing walls and four connecting struts which connect the cover plates at their corners. Specifically, the connecting struts are profiled bars (4), with a triangular cross-section, whose short sides (5) which are at right angles to each other lie in the same plane as the edges of the two cover plates (3). The short sides (5) expose an open accession gap (9) to the cavity of the profiled pass along the common longitudinal edge of the bars. An elastic sealing is arranged on the outer face of the triangular profiled bar opposite to the access gap and this seal is on the opposite edge of the laminations.
Patent DE-2533592-A1 (DE)
Title: Trammel draughting machne for draughting boards - uses two runners, each with two angled slide surfaces
IPC: B43L13/04
Filed: 1975-07-26
Abstract: The carriage of the draughting machine has two opposite runners, fastened to the ends of a guide bar. The guide bar carries a displaceable slide with a projecting support arm. A draughting head with scale, etc. is held on the arm, and is turnable about an axis at right angles to the draughting plane. Each runner (3, 4) has at least two slide surfaces, which are positioned at an angle to each other, and in a draughting position, guide the runners on counter surfaces on the draughting board (1). One slide surface of one of the runners may be displaced by spring pressure in a direction towards the opposite runner, and in the longitudinal direction of the guide bar (10). However, at least one slide surface of each runner is fixed under tension on the draughting board.
Patent DE-2533699-A1 (DE)
Title: Security block for data telephone terminal - prevents unauthorised use of terminal by comparing finger print with stored print
Inventor: BRANDSTETTER ALOIS DIPL ING
IPC: G07C9/00
Filed: 1975-07-28
Abstract: The security block is for use with data telephone terminals or expensive voice connections or in a data processing network where unauthorised persons need to be prevented from using the terminals. An input identification code -- fed in by the user -- is compared with a stored code. If the two are identical the terminal is released for use. The input identification code is the user's finger print. The finger print is scanned by a reader and salient characteristics picked out for comparison with finger prints on file as 'authorised persons'. As an additional precaution the user also has to enter the code number of the location of his own finger print. This is a then called up and compared.