baber/WOPTO huggingface dataset:
Patent DE-2421514-A1 (DE)
Title: Feedback for loudspeaker - with capacitive sensor monitoring moving parts and current voltage converter whose outputs forms negative feedback signal
Inventor: MEGGL FRIEDEMANN DIPL ING
IPC: H04R3/00
Filed: 1974-05-03
Abstract: The feedback, for loudspeaker, has a capacitive sensor that monitors the movement of the loudspeaker moving parts. The variations in the sensor's capacitance are monitored by circuitry coupled to it. A constant voltage is applied to the capacitive sensor and variations in current due to capacitance changes are converted into a proportional voltage. This proportional voltage is applied as negative feedback to the amplifier of the loudspeaker. The current voltage converter consists of a voltage amplifier with negative current feedback and high open circuit input impedance. The advantage of this feedback system lies in its avoiding the difficulties inherent in other systems.
Patent DE-2423688-A1 (DE)
Title: Change dispenser of vending machines - has tube-shaped coin stores with dispensing outlet for coins on top end
Inventor: SEELIGER KLAUS DIPL ING
IPC: G07D1/06
Filed: 1974-05-15
Abstract: A compression spring is used and its spring constant is equal to the quotient of coin weight and coin thickness. The spring path is equal to the product of the required number of coins to be stored and their thickness. The outer winding diameter of the compression spring is approximately equal to the coin diameter. The coin store (1) is provided with security arrangements which allow change only then to be removed from the coin store, when the content of coins is complete. The length of the coin store (1) is slightly less than the length of the untensioned compression spring.
Patent DE-2424143-A1 (DE)
Inventor: KRUGMANN GERHARD
IPC: B65D90/08
Filed: 1974-05-17
Abstract: A honeycombed silo contains orthogonal wall panels for forming honeycomb cells. At the points of connection of a plurality of panels, pipes are used to reinforce the joints. The usability of the vertical joint pipes (1) is to be extended, for which purpose said pipes are designed, at the same time, as delivery pipes or cable pipes and are provided with corresponding fittings, connections and openings. The joint pipes may have fixedly arranged centring cams (2) onto which U-shaped head profiles (3) of the wall panels (4) can be pushed; the centring cams may have threaded bores (2') for fastening screws (5). <IMAGE>
Patent DE-2436640-A1 (DE)
Title: Resonance damped electric contact rail - with irregularly spaced supports for non regular distortion to avoid resonance at pick-ups
Inventor: LINDE HELMUT DR ING
IPC: B60M1/20
Filed: 1974-07-27
Abstract: The overhead conductor rail, or the trackside conductor rail, is mounted on insulators which are spaced at irregular spacings. This ensures that the rail sags by irregular amounts between supports and prevents the prevents the establishment of forced resonance on the pick-up shoes. The spacings are chosen so that the spacings are nearly similar, without any spacing being a set number of integers times a smaller spacing. The system is used for high speed electric traction, and enables the amount of servo pressure on the pick-up to be reduced.
Patent DE-2437264-A1 (DE)
Title: Idling control for automatic transmission - with idling speed reduced during braking to prevent transmission drag
Inventor: FOERSTER HANS-JOACHIM PROF DR
IPC: F16H61/20
Filed: 1974-08-02
Abstract: When a vehicle with automatic transmission starts from cold the idling speed of the engine is increased, either by the choke or by similar means. If the vehicle then has to be braked on a low friction surface the extra braking force required can cause skidding. The invention provides a control switch (11) under the brake pedal which reduces the idling speed to a set low level. Alternatively the control switch is coupled to the gear change control to move the gear up one ratio, and thus reduce transmission drag. A further control can be fitted comprising a centrifugal switch (12, 13) which automatically sets a lower idling speed at low vehicle speeds.
Patent DE-2437621-A1 (DE)
Title: Torque limiter for valve actuator - has spring loaded coupling between valve handle and stem
Inventor: TOMIATI UMBERTO
IPC: F16K35/00
Filed: 1974-08-05
Abstract: The locking valve is closed with controlled torque and the valve has a helical screw actuator for the closing element, actuated manually by a handle. This valve has a coupling mechanism which restricts the turning moment to protect the plastics seal within the valve and ensures its long life. Between the screw type actuator and the handle is fitted a coupling which does not rotate on the screw shank and it is held by a spring (5) on the handle. A fixed stop (20) is provided between this coupling (4) and the handle to limit the travel of the spring between the position of minimum deformation and a position of maximum deformation.
Patent DE-2444634-A1 (DE)
Title: Transistor test circuit with current monitoring - has emitter connected to poles of voltage source
IPC: G01R31/26
Filed: 1974-09-18
Abstract: The potential which is applied to the collector of the test piece that is connected by a test resistance to the other pole of the source is compared with the potential which is applied to a divider point of one or more voltage dividers that are connected in parallel with the test piece and test resistance between the poles of the source. The value of the test resistance for checking the residual current of the collector is adjusted according to the test piece in question so that the residual current potential lies within the limit values set by divider point and the other pole of the source.
Patent DE-2447682-A1 (DE)
Title: Colostomy or ileostomy aperture closing device - has nearby permanent magnet working with other magnets closing aperture
Inventor: HENNIG GERHARD DR ING
IPC: A61F2/02
Filed: 1974-10-07
Abstract: The device is for use by a patient having an artificial anus, and incorporates one or more permanent magnets for mounting in the area of the intestinal aperture, working with one or more other magnets or soft magnetic components to close it. The permanent magnet can be of the annular type, or a set of magnets in a ring pattern, fixed to the inside of the abdominal wall round the intestine, while a mating component of ferrous material of suitable dimensions is attached to a disposable sack or a sealing hood. The implanted magnetic portion can be encased in silicon, polyethylene, or any other material acceptable to human tissue.
Patent DE-2448732-A1 (DE)
Title: Electric steam generator with boiler - which contains microwave electrodes and porous ceramic body with central water inlet and steam outlet
IPC: F22B1/28
Filed: 1974-10-12
Abstract: The arrangement is intended for the generation of steam for industrial and heating purposes. The boiler is preferably a cylindrical metal casting with the electrodes secured to the inner wall and the microwave action in a radially inward direction. The ceramic body is secured in the cylinder and has a central void through which the water is fed in. As the power is supplied by microwaves no exhaust gases are discharged to the atmosphere and the boiler has no fuel transport problems associated with it.
Patent DE-2457178-A1 (DE)
Title: Seal coating metal cable conductors - by applying powdered or granular polymer to preheated surface and subsequently drawing or rolling
Inventor: VOELKER MARTIN DR
IPC: H01B13/06
Filed: 1974-12-04
Abstract: A consolidated coating of insulating or conducting polymer is applies to a single/multiple metal conductor, esp. for electric cables etc., in powder or similar form which is converted into a sealing coating by subsequently mechanically working the conductor, pref. by subjecting it to a drawing or rolling operation. The bare conductor is initially preheated to a temp., above the m.pt. of the polymer. Continuous process for any section of conductor or stranded assembly, produces a sealing coat and thus prevents corrosion.
Patent DE-2510207-A1 (DE)
Title: Magnetic filter candles for liq purificn - are removed from liq on endless belt for periodic cleaning
Inventor: HOLZHEY DIETER ING GRAD
IPC: B03C1/28
Filed: 1975-03-08
Abstract: A liqs. filter comprises a number of magnetic filter candles immersed in the liq. These candles are periodically cleaned by removing them from the liq. Pref. the candles are advanced through the liq. tank by endless belts, on which the candles are fixed at intervals at their ends, transversely to the belts; the greater part of the belts is immersed, while a smaller part, carrying a limited number of the magnetic candles, is above the surface for cleaning of the candles. The tank is pref. deep and narrow; specif. it is of U-section, with the belts following the curve of the U.
Patent DE-2512024-A1 (DE)
Title: Crushing and disinfecting plant for medical waste - with comminuted parts coated with 3 per cent disinfectant solution
Inventor: MESS FRANZ ING GRAD
IPC: A61L2/18
Filed: 1975-03-19
Abstract: Crushing and disinfecting plant is for medical waste especially syringes, ampoules, infusion equipment and dressings etc., whereby the disinfectant is added during an automatic interval in the crushing process and in such concentrations that the comminuted parts are coated with a three percent solution of disinfectant to disinfect them. Pref. the volume and/ or concentration of the disinfectant can be adjusted. Apart from the comminuted material the inlet hopper (2), cutters (1) and outlet funnel (5) are also disinfected during the process by specific arrangement of the nozzles. The disinfectant solution and the crushed particles are finnally collected in a sieve vessel (3) beneath the outlet funnel(5).
Patent DE-2512933-A1 (DE)
Title: Pre-sensitised planographic printing plate - of o-quinone-diazide type contg. substd. phenol-aldehyde resin for non-blinding images
Inventor: KOBAYASHI KESANAO
IPC: G03F7/023
Filed: 1975-03-24
Abstract: Light-sensitive planographic printing plate has a light-sensitive layer contg. a material based on an o-quinonediazide, which becomes soluble in alkaline soln. after exposure with actinic light, and also a resin (I) obtd. by condensn. of an aldehyde (II) and a substd. phenol (III) of the formula (in which R1 and R2 are H, alkyl or halogen; R3 is 3-15C (cyclo)alkyl). These plates have the required ink-affinity and give non-blinding images. The water/ink ratio can be regulated within a wide range to give good quality copies. the plates can also give large editions.
Patent DE-2520271-A1 (DE)
Title: Smoke producer - with sandust filler adjoining screw conveyor for upward feed into smouldering zone of smoking chamber
Inventor: HATJE RUDOLPH ING GRAD
IPC: C10B53/02
Filed: 1975-05-07
Abstract: In a smoke producer for plant in the production of smoked food products the filling funnel for sawdust is arranged side by side with the smouldering chamber. A reception chamber for the saw dust under the smouldering chamber is equipped with a screw conveyor to feed the sawdust into the smouldering zone from below. This requires no fire barriers to prevent the sawdust feed from catching fire. The condensation of tar on sawdust introduced from the top is eliminated and any smoke obstruction by clogging tar deposits is eliminated.
Patent DE-2526216-A1 (DE)
Title: Wrench with slidably adjustable jaws - has clamp ring pressed sideways against guide bar by spring on movable jaw
Inventor: WOLFF HANS-DIETRICH
IPC: B25B13/24
Filed: 1975-06-12
Abstract: The adjustable spanner has all the forces acting on an adjustable jaw (7) located on a guide bar (1) via a clamping ring (3) and a retention arm (4) transmitted to a pin (5) in the retention arm. The torque acting around this axis (5) on a grip (6) is supported by a slide bearing in the lower grip part on the guide bar. An adjustable jaw () against a fixed jaw (2) forms part of a hollow grip (6) which is turn is connected via the pin (5) and holding arm (4) with a clamping and slide ring (3). The grip can be lineally displaced on a guide bar (1). A spring (8) causes the clamping and slide ring (3) to tip on the guide bar (1), but this movement be rectified by application of slight pressure on the outer part of the clamping ring (3).
Patent DE-2526527-A1 (DE)
Title: Combined supply unit for microwave magnetrons - has two transformers in parallel and cascade for voltage doubling
Inventor: FRITZ KARL DR
IPC: H03B9/10
Filed: 1975-06-13
Abstract: The combined supply unit, for microwave magnetrons, has two auxiliary transformers with their primaries in parallel with the mains supply and their secondaries symmetrically in series with the supply as common voltage source for the voltage doubling cascade. One transformer also carries the heating coils and other auxiliary windings whilst the second has tappings for voltage selection. The start charging of the cascade is limited such that it ends just before the foot of the rising characteristics. The cascade and transformers can be enclosed in a chamber which is thermally insulated from the rest of the equipment.
Patent DE-2528020-A1 (DE)
Title: Draining and irrigation system for hot climates - uses drained water for irrigation in perforated tubes with clearing facility
Inventor: HOELTER HEINZ
IPC: E02B13/00
Filed: 1975-06-24
Abstract: The system for draining of twon and for simultaneous irrigation of agricultural areas in town with hot and dry climate ensures that the appearance of the irrigation system is improved and it also prevents the spreading of harmful bacteria by the water. This arrangement has concrete tubes (1), which ahve perforations (2) from which a required quantity of water can seep into the adjacent soil. This ensures irrigation of the agricultural fields. A slide arrangement is provided within the tube for closing or opening of given irrigation or draining tube units. This slide is used in conjunction with water hoses used for generating excess water pressure for blowing out the mud blockages. Alternatively air pressure can be used for cleaning of these perforations.
Patent DE-2529200-A1 (DE)
Title: Steel welding in carbon dioxide - with wire electrode contg. low carbon steel cover and calcined magnesite-fluorspar-contg. filler
Inventor: POCHODNYA IGOR KONSTANTINOWITS
IPC: B23K35/02
Filed: 1975-07-01
Abstract: Wire electrode for steel welding in CO2 consists of a low-C steel cover filled with a powder mixt. contg.,by wt., 4-8% calcined magnesite and 6-9% feldspar, in addn. to 4-5.5% CaF2, 14-20% TiO2, 6-10% Fe-Mn, 1.5-3% Fe-Si, bal. Fe powder. Wire electrode is for use in semi-automatic and automatic welding of metal construction of low C construction steels, low alloyed steels and higher strength steels. Fluoride gas separation is strongly reduced without impairing welding properties.
Patent DE-2539280-A1 (DE)
Title: Cold chamber pressure die casting machine - where plunger in injector barrel is lubricated during each working stroke
Inventor: MIKI ISAO
IPC: B22D17/20
Filed: 1975-09-04
Abstract: The machine uses a stationary die half contg. the ingate, and a moving die half fitted with an ejector mechanism. The machine also has an injector barrel connected to the ingate and contg. a plunger forcing the molten metal into' the mould. Specifically the plunger in the injector barrel is rotated round its longitudinal axis. In addn. to the inlet for molten metal, the barrel pref. has an inlet via which a lubricant can be sprayed onto the working surface of the plunger when the latter is fully retracted. Compressed air can pref. be blown in with the lubricant. Continuous cleaning of the working surface of the plunger, and its uniform lubrication, throughout the use of the machine is obtd.
Patent DE-2543123-A1 (DE)
Title: Doppler radio direction finder sensitivity increasing circuit - uses additional antenna with narrow bandwidth receiver for noise suppression
Inventor: SCHMENGLER ECKHARD DR
IPC: G01S3/52
Filed: 1975-09-26
Abstract: A circuit increasing the directional sensitivity of Doppler radio direction finders enables simple suppression of common channel noise and may be used partic in the short wave region. The bandwidth of a data signal receiver is made small enough to ensure that noise signals with frequencies close to that of the direction signal are suppressed. The data signal is received by an antenna which is additional to the directional antenna. The directional and data signals are connected to input channels. They have shifted beat frequencies, and are treated as input to a compensation mixer whose output frequency is fed to the direction evaluation unit via a summer.
Patent DE-2546518-A1 (DE)
Title: Connectable units in data processing machines - has units adjustable for various sizes of data cards and connected by clamping
Inventor: ENGLER PETER ING GRAD
IPC: B65H31/20
Filed: 1975-10-17
Abstract: The units for data processing machines can be coupled together for the reception of data cards with the sidewalls of the units adjustable for different formats of data cards and with at least one of the units adjustable in drawer fashion. The units are arranged one above the other and have a detachable connection with each other through clamping devices (7, 8) acting on their adjoining sidewalls (5). The sidewalls can only be adjusted together and the clamping devices are only detachable when the machine units are located above each other. Only two adjoining sidewalls (4, 5) of any machine unit can be coupled together or may be adjusted together.
Patent DE-2547230-A1 (DE)
Title: Card index system with throw stop plates - which are located between intermediate plates held between notched ledges
Inventor: BOELZ WILFRIED
IPC: B42F17/12
Filed: 1975-10-22
Abstract: Card index system with swivelling intermediate plates supported at it's side edges on notched ledges holding groups of cards between them. Throw stop plates are positioned between the intermediate plates and are also capable of swivelling. The notched ledges (8) have recesses (9) which extend into projections (14) located at the lower edge (11) of the throw stop plates (10). The projections are made as horizontal pins (14) with a free end on their outer side and connected at their inner ends with the throw stop plate (10/ through a largely vertical stay (13). Both stay and pin are shaped in hook form or alternatively are made to form a hook.
Patent DE-2601215-A1 (DE)
Title: DC motor with brush pairs - has rectifier diodes in brush feed lines and controlled semiconductor switches with common short circuit action
Inventor: PFEFFER PETER
IPC: H02K13/14
Filed: 1976-01-14
Abstract: The electric of c. motor having more than one pair of brushes comprises rectifier divide (s) in at least one brush feed-line. One rectifier divide is provided in all the "homopolar" brush feed-lines of one polarity. Each rectifier divide is provided with a shor-circuit lead fitted with a short-circuiting switch which is connected across the divide terminals. The short-circuiting switches associated with brushes of the same polarity, are actuated in common. The switches are preferably controlled semiconductor switches.
Patent DE-2603098-A1 (DE)
Title: Membrane air pump for aquarium - has sprung arm oscillated by electromagnet to excite membrane connected by nonreturn valves to entry and exit chambers
Inventor: KOLFERTZ ERWIN
IPC: F04B45/047
Filed: 1976-01-28
Abstract: The membrane air pump for aquariums has a casing (1) housing an electromagnet (8) with E-shaped core (9). An oscillating arm (16) has at one end a laminated extension protruding into the core. The other end is joined to a spring metal strip (17) bolted to the casing. The central section of the arm acts on a rubber domed membrane (22). The air below the membrane is connected to an entry chamber (7) and a discharge chamber (6) by respective non-return valves (26, 27).
Patent DE-2613141-A1 (DE)
Inventor: SCHNEIDER FRITZ DR
IPC: B23D61/18
Filed: 1976-03-27
Abstract: The sawing wire is formed from a synthetic highly polymeric monofilament incorporating from 0.3 to 10% by weight of added abrasive particles. It has at least the same sawing effect and life as steel wire incorporating abrasive particles and can readily be matched to the particular sawing problem.
Patent DE-2619200-A1 (DE)
Title: Universal adjustable steel tube coupling - has common rotation core for two halves and interfacing geared rims
Inventor: KINSKI ERNST DIPL ING
IPC: E04G7/16
Filed: 1976-04-30
Abstract: The device is for joining steel tubes of varying dia. in framework or scaffolding construction. It is made up from two mutually rotatable halves, pref. of drop-forged metal, each comprising pressure plate (13), folding turn clamp (12) connected by a pivot pin (18) and a threaded bolt (19) with must (19a). The core of rotation (14) is shared between the halves, made in two parts, and welded or riveted with a connecting piece. It has two geared rims facing each other in the form of discs. There may be similar geared rims on the pressure plate, force-locking onto these when coupling takes place.
Patent DE-2623235-A1 (DE)
Title: Pneumatic suspension for container vehicle - has unitary construction to combine manual with load sensing valves
Inventor: HOECKL HORST DIPL ING
IPC: B60G17/052
Filed: 1976-05-24
Abstract: The control valves for the pneumatic suspension of the container vehicle are assembled from a series of similar components. The load sensing control valve also doubles as a manual control valve to alter the riding height of the vehicle. The overall cost of the suspension is reduced, while the valve design is simplified. Manual operation of the valves lifts and lowers the vehicle so that containers can be transported without loading hoists.
Patent DE-2631815-A1 (DE)
Title: Shock absorber for railway drawgear - has cupped washer spring type with telescopic action preventing radial relative movement
Inventor: ROMMERSKIRCHEN KURT
IPC: B61G11/02
Filed: 1976-07-15
Abstract: The shock absorber for railway vehicle drawgear consists of two housing, one telescoping into the other and returned by srping force. The travel on return is limited by stops, in conjunction with the spring force. The two housings are joined by an anti-torsion system. The latter consists of a throat and a guide ring. This permits longitudinal but not radial movement. In the assembly is included a plate, towards the outside of the vehicle, to take up wear. Sealing is provided between the two telescoping housings. The shock absorber spring is of the cupped washer variety.
Patent DE-2640118-A1 (DE)
Title: Constantly adjustable rocker bed with orthopaedic shaping - has fluid or solid weights inside bed displaced by occupant
Inventor: BOETTCHER WOLFGANG
IPC: A47C3/029
Filed: 1976-09-07
Abstract: The rocker bed comprises an orthopaedically shaped couch surface and a rolling surface which curves hyperbolically to circular and contains solid or fluid weights which can be constantly displaced by the occupant by 20 deg. or more so that the bed can be rocked in any inclined position. For an easier rocking movement the weight block inside the bed can be moved to and fro on a curved path between the head and toe end of the bed by means of a fixed electric motor (c). The electric switch (E) for this motor can be attached to the bed where it can be easily operated by anyone lying down.
Patent DE-2647047-A1 (DE)
Title: Securing unit for mine cutting machine hauling chains - has pipe guide with tubular ring and locking wedges fixed by chains
Inventor: HIPPLER WILLI
IPC: E21C29/20
Filed: 1976-10-19
Abstract: Securing unit for hauling chains esp. of cutting machine movable along face conveyor in mine has pipe guides (2) movable along the guide pipe (1) in the longitudinal direction of the face. The guides have tubular rings (5) which accommodate the chain (4) and are positioned on the top of vertically extended webs (3) which are coupled to the pipe guides (2) themselves. The rings have arresting units in the form of locking wedges (10) which are fixed to the rings (5) by means of chain (9) or similar attachments. Each web (3) has a U-shaped end which fits over the upward projection (11) on the pipe guide and to which it is swivelably coupled by a connection bolt (7).