baber/WOPTO huggingface dataset:
Patent DE-2337002-A1 (DE)
Title: Opto-electronic ticket recognition - with detection of contrasting colour areas on ticket
Inventor: SEIFERT WOLFGANG
IPC: G06K7/10
Filed: 1973-07-20
Abstract: Several reflected light barriers at the input of the ticket guide scan a ticket code and detect contrasting areas in the form of bars printed on to break up the background colour of the ticket. The reflection of the background colour of the ticket causes the stepping-on of a counter via an appropriate counter act. When there is agreement with the valid and uncancelled ticket code, the printing operation to cancel the inserted ticket is initiated, after the ticket has actuated a microswitch against the end of the ticket guide.
Patent DE-2345921-A1 (DE)
Title: Heat-insulating cover for molten metals - using a granular with the same compsn. as the lining of the vessel
Inventor: GEBHARDT ST DR
IPC: B22D1/00
Filed: 1973-09-12
Abstract: A covering material for metallurgical melts in casting vessels, esp. molten steel, the novelty being that the material is a spherical granulate, i.e. pellets, 2-12mm in dia. The pellets pref. have a density lower than that of the powder from which they are made and pref. contain voids at the temp. of the melt; volatile substances can be included. The advantage is a dust-free material which is easy to distribute on the surface of the molten metal. The pellets are made by known methods and old, crushed linings or fly ash can be used; any carbonaceous material employed must not affect the carbon content of the melt; they can be used e.g. on launders, tundishes and moulds.
Patent DE-2346865-A1 (DE)
Title: Box for roller blind cord reel - of profilated brick, for building-in during construction of house
Inventor: WEIGELE GEBHARD
IPC: E06B9/78
Filed: 1973-09-18
Abstract: The brick may consist of any chosen material, but of a size corresponding to commercial brick size. The two vertical side surfaces of the profilated brick may be aligned with the sides of the brick wall, in which it is contained. The recess in the brick is of a size, to allow for the compensation of tolerances between the cord reel and the blind pulley, due to inaccurate building in. Compared with the prior art a less fussy and more speedy assembly is obtained and the brick is so designed that it has the required compressive strength needed when it becomes an integral part of the assembly.
Patent DE-2351513-A1 (DE)
Title: Split tube-type motor pump for heating installations - has rotor and pump chambers separated by a dividing wall
Inventor: MUELLER GERHARD
IPC: F04D13/06
Filed: 1973-10-13
Abstract: Circulating pump is used in heating installations, where the liquid filled rotor chamber is separated from the pump chamber by a dividing wall. Apertures for liquid circulation are fitted in the dividing wall leading to rotor and pump chambers with their inlets in the pump chamber located near the outer diameter of the impeller, and their outlets positioned within the rotor chamber. The direction of the apertures form an angle of 90 deg. or less with the radial and circumferential components of the liquid flowing within the inlet area.
Patent DE-2404621-A1 (DE)
Title: Cpds. contg. chroman rings - from hydroquinones and carboxylic acid derivs in the presence of an insol solid acid catalyst
Inventor: ICHIKAWA YATARO
IPC: C07D311/72
Filed: 1974-01-31
Abstract: In the title reaction a cpd. (I) is reacted with a cpd. (II) (III) or (IV) in the presence of a solid acid which contains an acid whose strength Ho (Hammett) is 1.5, insol in the reaction system. (where R1 and R2 are H or 1-20C org. carboxylic acid radicals, R3 R4 and R5 are H or Me; X and X1 are each different and all halogen, or 1-20C- org. carboxylic acid radicals; Y is H or 1-20C satd. or unsatd. hydrocarbyl). The acid catalyst is pref. silica/alumina of specific surface area of >=1 m2/g pref. 100 m2/g contg. is not 0.25 m mole/g acid of Ho 1.5.
Patent DE-2407748-A1 (DE)
Title: Drive unit for video tape recorder - has electronically-commutated DC motor with bearings simultaneously acting as rotary head bearings
Inventor: THUY HANS-JOACHIM DR RER NAT
IPC: G11B5/52
Filed: 1974-02-18
Abstract: The drive unit, for a video tape recorder, has an electronically-commutated d.c. motor driving the drum that carries the video head. The motor bearings simultaneously act as bearings for the rotating part of the drum. The fixed, stationary part of the drum is flanged to the motor's end-plate. Apart from the electronic commutation, another circuit regulates the head's phase and speed according to a reference signal. Since the drive uses electronic commutation all acoustic and electrical noise from brushes is avoided. The construction also increases the motor's efficiency by avoiding thermal losses to the rotating head.
Patent DE-2409230-A1 (DE)
Title: Load cell for vehicle axle load measurement - is fitted with measuring element releasable from applied load
Inventor: KAMPF HERBERT
IPC: G01G3/14
Filed: 1974-02-27
Abstract: The load cell is designed especially for fitting in an aircraft wheel axle which deforms under the weight of the aircraft, whereby a rod-shaped measuring element in the cell is clamped at one end in connection with the axle and rests at its other end on a support so that it deforms with the axle and generates measuring signals. A switching mechanism is provided to move the measuring element off the support to a free position and return it to precisely the same position on the support. The switching mechanism may rotate the measuring element about its longitudinal axis or may rotate a ring with an eccentric inner surface which forms the support.
Patent DE-2412868-A1 (DE)
Title: Electronic generation and measurement - of compensating signals and or harmonics for automatic centring of measuring machines
Inventor: HEIDER HANS-JUERGEN
IPC: G01B7/28
Filed: 1974-03-18
Abstract: The fundamental waves synchronized to the period of the measuring process and/or the required harmonics are generated by digital stores by means of multipliers and adders. The electronic generation of the second harmonic is identified as sin 2 ALPHA and cos 2 ALPHA. The generation is the result of the correlation of the circular functions : sin 2 ALPHA = 2 x sin ALPHA x cos ALPHA. This equation can be electronically obtained by using a multiplier. Similarly, the relation cos 2 ALPHA = 2 x sin (ALPHA + 45 deg.) x cos (ALPHA + 45 deg.) can be derived. This equation can also be electronically obtained by using a multiplier is series connection with an adder.
Patent DE-2418985-A1 (DE)
Title: Digital-analogue recording converter - has a digital circuit for shifting the analogue output signal level as required
Inventor: IZUMI TAKASHI
IPC: G01R17/04
Filed: 1974-04-19
Abstract: The converter includes a digital circuit for adjustment of the analogue output signal shift range. The digital circuit is for adding an analogue signal with a polarity determined by a polarity signal contained in the digital input signal. Two counters repeatedly count synchronously with each other, the first counter being reset by the second. The first counter reading and the digital input signal are compared, and the second counter reading is extracted by the comparator at the instant of coincidence between the first counter reading and the digital input signal. The first counter reset reading can be changed and preset, and the required level shift is digitally carried out.
Patent DE-2420604-A1 (DE)
Title: Coolant tubes for converter chimneys - made from age-resisting steel to improve working life of tubes
Inventor: BRAUMANN FRANZ DR RER NAT
IPC: C22C38/00
Filed: 1974-04-27
Abstract: An exhaust gas chimney, esp. on a converter, consisting of an assembly of tubes which are welded together along the contact lines where the tubes touch each other to form an evaporative cooler, uses tubes made of a steel which is resistant to ageing, esp. steel A st 35 of German specification DIN 17135. Greater resistance to thermal shock is obtd. giving longer life before any cracks occur.
Patent DE-2422703-A1 (DE)
Title: Rail train loading equipment - saddle-piece bridging gaps automatically controlled by train movement
Inventor: SCHLOCKERMANN ERICH ING GRAD
IPC: B65G67/22
Filed: 1974-05-10
Abstract: The equipment has a transverse saddle-piece to bridge the gap between successive trucks in the train, sliding in the direction of travel of the train and back again, and the incoming bulk material is discharged by the conveyor above the saddle-piece either direct into the trucks or via the saddle-piece, which is used to divide it. Movement of the saddle-piece (12, 13) in the direction of travel of the train (17, 18) is automatically controlled and carried out. Reversal can be affected by a limit switch, operated by the saddle-piece as it comes to the end of its track. Where two trains are loaded simultaneously and a further saddle piece is provided to bridge the intervening gap, it (11) can move independently of the other two.
Patent DE-2425389-A1 (DE)
Title: Hook for holding cabinet locking rod - is spring loaded and pivoted for guiding locking rod
Inventor: MAURER JOSEF
IPC: E05C9/18
Filed: 1974-05-25
Abstract: The lock, especially for filing cabinet doors has locking bars which are slid into locked position and engaged with cabinet housing. The lock is designed so that the locking bolts do not project beyond door panels while the door is not locked. This prevents damage to the paintwork by the projecting elements and also damage to the lock on impact on closing the door. The door (14) has a holding hook (22) which ensures that when the door is open then the locking bolt is retracted in safe position when door is not locked. This holding hook is spring (26) loaded and pivoted at its upper end. This hook has a hole (32) through which passes a locking rod which is guided by the rotating hook.
Patent DE-2426720-A1 (DE)
Title: Work top with built-in basin,, cooking pan etc. - has sealed fitting provided by watertight heat-resistant composition
Inventor: KORNFELD HEINRICH
IPC: E03C1/33
Filed: 1974-06-01
Abstract: The work top (1) is provided with a recess adapted to take the frame (2) of a built-in basin or cooking pan and to provide a flush sealed fitting, the frame (2) is sealingly connected to the surrounding work top (1) by a waterproof temperature-resistant foam composition (11) preferably casting resin which sets the frame firmly in position. The sides of the frame (2) facing the cut faces (9) of the recessed opening are preferably designed with barb-like protrusions (4) which also help the frame (2) to be firmly sited in the work top.
Patent DE-2427903-A1 (DE)
Title: Price indicating unit with several disc wheels - has the prescribed number of wheels pressed against one another by a spring, rubber etc.
Inventor: GERLACH ADOLF
IPC: G09F11/24
Filed: 1974-06-10
Abstract: The disc wheels are provided with gearing or toothing whereby the unit incorporates an additional wheel which to one side has toothing and which conforms to the disc wheels. The smooth side of this additional wheel is attached to the housing wall by glue, point connections or similar so that the symbol field is exactly aligned to the see through window of the housing. The disc wheels can move on a wire pin axis or alternatively a screw having a nut on its end which if necessary is let into the housing. The screw can be used to lock the selected symbols in position in the housing window.
Patent DE-2429571-A1 (DE)
Title: Easily assembled picture frame and backing - comprises mitre-cut frame members held together by leaf springs at corners
Inventor: REIM PAUL
IPC: A47G1/06
Filed: 1974-06-20
Abstract: The picture frame comprises a rigid backing with leaf springs mounted in each corner so that the two spring arms (127) of each spring lie at right angles to each other. The picture is mounted in front of the backing wall and is covered by a transparent plate and this assembly is supported by the four frame members which are set together with mitred corners and held by the springs. At the point (125) where the springs are fastened to the frames they can be provided with retaining tabs (130a) which engage over the edges of the backing wall so that during assembly the springs do not have to be specially aligned but can be placed against the two adjoining edges and then quickly fastened, for which only one rivet is required which further reduces the costs of manufacture.
Patent DE-2432702-A1 (DE)
Title: Hydroxyalkyl-xanthines from alkenyl-xanthines - by acid catalysed addn. of water
Inventor: SOEDER ALFONS DIPL CHEM DR
IPC: C07D473/06
Filed: 1974-07-08
Abstract: Hydroxyalkyl-xanthines of formula (I): (where at least one of R1, R2 and R3 is a 4-8C (omega-1)-hydroxyalkyl gp. with no branching in the (omega-1)-posn., and the others are 1-12C alkyl, or R1 and/or R2 can also be H) are prepd. by Markownikoff addition of H2O to the corresp. (omega-1)-alkenyl-xanthines (II) in the presence of a catalyst. (I) are useful as medicaments, e.g. 1-(5-hydroxyhexyl)-3, 7-dimethylxanthine (Ia) has circulatory activity. The process gives almost quantitative yields without the use of unstable reagents (cf. the metal hydride redn. of the corresp. keto cpds.). The reaction is pref. effected at 40-150 degrees C (esp. 60-120 degrees C) in an aq. soln. or suspension contg. an acid catalyst, e.g. H2SO4, HCl, HNO3, H3PO4, CF3SO3H or an SO3H-contg. ion exchanger (H form). Cpds. (II) can be prepd. by reacting an haloalkene with an alkali metal salt of theobromine (or an analogue thereof).
Patent DE-2432884-A1 (DE)
Title: Dependent pulse train generating cct - frequency is multiple of specified master pulse train for machine control
Inventor: SCHUPP WALTER DR
IPC: H03K5/00
Filed: 1974-07-09
Abstract: The circuit ensures a specified phase relation between two pulse trains. It comprises an oscillator whose frequency is controlled by a signal derived from the master pulse train frequency and from the phase relation between the two pulse trains. The dependent pulse train reproduces the position of a rotating machine part, and the master pulse train pulses are generated by the machine part at each revolution at a specified position. The oscillator delivers a rectangular voltage applied to a frequency divider whose output rectangular voltage is converted by a resistor network into a saw-tooth voltage, whose mean value controls the oscillator.
Patent DE-2433292-A1 (DE)
Title: Rear dust flap for car - acting as spoiler to deflect slipstream flat along road surface
Inventor: EMMELMANN HANS JOACHIM DIPL IN
IPC: B62D35/02
Filed: 1974-07-11
Abstract: A spoiler flap (5) is mounted across the rear bottom of the car, behind the rear wheels. The shape of the rigid spoiler flattens out nearly horizontal away from the wheels with most of the surface pointing downwards and rearwards. The slipstream is thus deflected down onto the road at a shallow angle, carrying the water spray and dust away from the rear surface of the car. This keeps the lights, indicators and number plate free of obscuring dirt. The flap is of a resilient material able to resist damage.
Patent DE-2439145-A1 (DE)
Title: Telephone PBX with direct call facility - enabling extensions to be connected to operator position through a direct call connector
Inventor: BYL FREDDY DIPL ING
IPC: H04Q3/62
Filed: 1974-08-14
Abstract: A key with two working position (e.g. press down and turn key) is used as the direct call key on the telephone instrument. It initiates in its one working position direct call connection to the direct call extensions. In its second position is connects switching means (GBS, B) in the central control unit preventing the connection to the required extension, and marking the operator position and controlling connection build-up to it. The control unit (ZE) has connections through relays and rectifiers to the line search unit which also couple with the number supervisor and identifier.
Patent DE-2440830-A1 (DE)
Title: Cleaning tool for waveguide - between radio equipment and aerial as connecting link has elastic plug and end coer
Inventor: SCHUSTER RICHARD ING GRAD
IPC: H01P11/00
Filed: 1974-08-26
Abstract: The elastic plug (2) is relatively long and the cross-section of the plug (2) corresponds to the shape of the cross-section of the wave-guide. A section (3) of the cross-section is made of air-proof material and an elastic end cover (4) containing an inlet (6) for compressed air is placed on the waveguide (1). The cross-section of the plug (2) is slightly larger than the cross-section of the waveguide. The air-proff section (3) of the cross-section is placed at the front of the plug (2) facing the end cover (4) of the waveguide (1). The length of the plug (2) is approximately 1 1/2 to 2 1/2 times the width of the cross-section.
Patent DE-2448436-A1 (DE)
Title: Ball plug valve has power-actuated seat ring - engaging ball plug surface after its closure
Inventor: SIGMON JAMES W
IPC: F16K5/20
Filed: 1974-10-10
Abstract: The ball plug is contained in a housing with inlet and outlet. The inlet section is surrounded by a double bellows one end of which is fixed relative to the housing. The other end is movable in longitudinal direction relative to the inlet from a rest position to an extended position, when a fluid pressure is admitted between the bellows. This movable end carries a seat ring in a hard polymer resin. When the bellows are made to extend, the seat ring engages the spherical surface of the ball plug. The arrangement is such that the seat ring does not engage the plug surface until the plug is turned into its closed position, and lifts off the plug surface before the plug is turned into its open position.
Patent DE-2451058-A1 (DE)
Title: Ventilation of space under pitched roof - air outlet is through spaced U channels with solid base
Inventor: SCHOLLMEYER HERMANN DR
IPC: F24F7/02
Filed: 1974-10-26
Abstract: Ventilation under a pitched roof, in which the air escapes through U-channels running high across the roof, through the ridge timber, and immediately under the capping tiles. The U- channels, which are spaced at intervals along the roof, have solid bottoms and side walls, but are only partly decked over on top, a space being left next to the ridge timber to give entry to air which has risen by convection in the spaces between the channels or been drawn into them by the suction of the wind outside. Since the channels pass straight across the roof, rain or snow driven in by the wind at one side passes out again at the other and the roof space stays dry.
Patent DE-2457821-A1 (DE)
Title: Cross wound bobbin supporting radially distensible mandrel - with an elastomeric member and provided with bobbin end abutment
Inventor: MALDENER ALFRED
IPC: B65H75/24
Filed: 1974-12-06
Abstract: Distensible mandrel comprises an axially fixed member provided with an abutment and surface for locating one end of the bobbin which is clamped onto the mandrel by a radially outwardly distensible elastomeric ring disposed between an abutment on the fixed member and an abutment on an axially slidable member, the abutment being biased towards the ring by a compression spring acting on the abutment and on a further abutment on the member. Mandrel is released by relaxing ring with an actuator. Used in winding cross-wound bobins. Bobbins are held securely in a registered manner.
Patent DE-2461038-A1 (DE)
Title: Open-pore film prepn - by drawing mixt of high polymer and low m. pt cpd., for use as electrical insulation, packaging film and component of artificial lungs
Inventor: SUZUKI TAKASHI
IPC: D01F1/10
Filed: 1974-12-23
Abstract: An open-pore film, with texture oriented in the main plane of the film, consists of (a) 100 pts. wt. of a crystalline high-mol. substance, and (b) 1-300 pts. wt. of a material with m. pt.  the m. pt. of (a) and with fine shallow cavities extending at right angles to the thickness of the film and with a fine arched fibre structure on the surface of the film. The film is used as electrical insulation as packaging film, and esp. in prodn. of artificial lungs operating on the membrane principle. The film is strong, has low dielectric loss and high breakdown voltage, can be sterilised with ethylene oxide, steam or heat, is cheap, is impermeable to bacteria and to blood, but is permeable to gases, including O2 and CO2. The cavities or pores are very small and have narrow size distribution.
Patent DE-2461054-A1 (DE)
IPC: G04F5/06
Filed: 1974-12-21
Abstract: In a piezoelectric crystal resonator with AT cut, of which two contour areas (5a, 5b) exhibit a plurality of base lines in parallel with a z axis located at right angles to the electrical x axis and the two other ones (5c, 5d) are arranged at right angles to this z axis, their distance (z'0) from one another is 0.1 to 6-times, preferably 0.3 to 3-times, the maximum thickness (y0) between the two first contour areas (5a, 5b), measured along a thickness axis (y) at right angles to the x axis. <IMAGE>
Patent DE-2462372-A1 (DE)
Title: Powder-gas reaction process - by continuous feed of powder down vibrating helical conveyor countercurrent to gas flow
Inventor: DOEHREN HANS VON DIPL CHEM DR
IPC: H01M4/36
Filed: 1974-01-29
Abstract: In a process for executing gas-solid reactions the solid in the form of a powder is continuously fed on to the top of a helical conveyor housed in a gas-tight vessel. The helical conveyor vibrates causing the powder to move down the helix whilst a gas stream is passed up the vessel. Turning plates positioned in the helical passage ensure complete mixing of the powder. Used for prodn. of active metal powders and oxidation, reduction or hydrogenation catalysts for petrochemical reactors. Gives complete homogenous reaction even for powders with wide range of granulometry in much shorter time than for e.g. packed beds or furnaces.
Patent DE-2502992-A1 (DE)
Title: Interlocking tent or other temporary floor panels - flat-surfaced with opposite shaped and counter-shaped bent sections
Inventor: TRITSCHLER GEB JAHN HELGA
IPC: E04F15/10
Filed: 1975-01-25
Abstract: The flooring panel is esp. suitable for use in making a temporary floor, as e.g. in a camping tent. It has a flat tread surface (2), bent back on at least two edges, one of which is given a distinct profile (3a), and the other a fitting counter profile (3). These bent sections are pref. on two opposite edges, one being roughly u-shaped with its outer shank (5) and the resultant slot-type opening (6) facing upwards, and the counter profile consisting of a shank (4) at right angles to the tread surface. Such profiles may be provided, alternately, on all four edges of the panel. It may be made of plastic, and formed in a single piece corrugated projections underneath pref. of a softer material. A number of such panels can be easily joined, to make up a floor.
Patent DE-2506584-A1 (DE)
Title: Wind turbine with vertical main axis - blades adjustable to relevant wind direction via electronically controlled gears
Inventor: PICKEL HANS
IPC: F03D3/06
Filed: 1975-02-17
Abstract: Wind turbine which rotates about the vertical axis and has vertical turbine blades which rotate about their own vertical axis where the wind turbine rotates about a vertical main shaft such as the supporting mast. The turbine blades rotate about their own vertical axis in the vertical position and therefore on one mast several wind turbines can be economically fitted above each other. The turbine blades on one or both sides can be suited to the relevant wind direction via control gears which can be controlled by an electronic control system.