baber/WOPTO huggingface dataset:
Patent DE-2501372-A1 (DE)
Title: Flexible magnetic recording tapes - with two layer coating on the back to improve wear resistance
Inventor: ROLLER HERMANN
IPC: G11B5/735
Filed: 1975-01-15
Abstract: Flexible magnetic recording tapes are coated on the reverse side with a 0.5-2 mu m thick non-magnetic conductive layer (A) of conductive pigments and opt. other pigments, with total pigment content 15-80 wt %, in a polymer binder, and an outer non-magnetic layer (B) with thickness 0.3-1 um, of a polymer binder with pigment content 0-10%. The tapes are coated with (A) using a polyester-urethane binder with added polyisocyanate, in an inert volatile org. solvent, drying, and coating with (B) using a binder contg. OH gps. with a solids content of which 0-10 wt % is an accelerator for the addn. reaction to the NCO gps., 0-30% is a lubricant and 0-10% is a non-magnetic pigment. Wear resistance of the back of the tape is improved by coating with (B). Even after 500 passes through a video-recorder, only sight signs of wear are visible, whereas without (B) signs of abrasion can be seen after 10-20 passes and even good commercial tapes show heavy wear after 150 passes. The surface conductivity, and roughness required for good winding performance, are not adversely affected by presence of (B).
Patent DE-2501686-A1 (DE)
Title: Cigarette feed hopper for packing - belt unit has swing frame to vary hopper capacity
Inventor: SCHMERMUND ALFRED
IPC: A24C5/35
Filed: 1975-01-17
Abstract: Cigarette feed hopper is for storage and delivery of cigarettes between making and packing. One feed conveyor belt unit has driving, adjusting and support rollers mounted in a swing frame which pivots about the centre of the front driving roller, so causing the belt to swing along the circular backing wall. Belt and rollers are split and swing frame is centrally arranged. Belt has transporting lugs which engage into grooves in backing wall and distance piece. Swing frame can take up three positions. Belt and swing frame driving motors are controlled by sensors to maintain correct hopper level.
Patent DE-2506213-A1 (DE)
Title: Timer control for storage heater - uses multi-stage frequency divider with resistors and capacitor for setting time delay
Inventor: THOSS MANFRED DIPL ING
IPC: G05D23/19
Filed: 1975-02-14
Abstract: The timer control, for a storage heater, supplies several time functions by switching control elements, e.g. to allow the heater to be connected to the voltage supply during the low tariff rate period. It comprises a clock source (2) provided by a multistage frequency divider, formed as an integrated circuit. The time delay is selected by resistors (RA, RB), a capacitor (C) and the number of frequency divider stages, with the number of outputs corresponding to the number of time functions. The supply is connected via a clock contact (ks) with relays (R2, R3, R4) connected to respective outputs for operation at different times.
Patent DE-2515066-A1 (DE)
Title: Lock for safety OFF switch - has locking lever and main levers whose corners are chamfered
Inventor: MERKLE PAUL
IPC: E05B29/00
Filed: 1975-04-07
Abstract: The lock for the safety OFF switch is in the form of a flat plug-in lock without a longitudinally shiftable lock insert. It has two pivoting levers, it.e. the main lever and a locking lever. In the locking position the main lever is blocked by the locking lever, the latter being blocked by the main lever in the unlocked position of the lock. The pivotal axis of the main lever is mounted in the front part. Both levers have corners which are chamfered or rounded. Alternately only one lever corner may be of this configuration. Preferably the lock housing consists of two halves which permit the assembly of the lock along their separation plane.
Patent DE-2517748-A1 (DE)
Title: Voltage stabilising circuit for camera - uses zener diode and constant current stage with low current consumption
Inventor: WAGENSONNER EDUARD ING GRAD
IPC: G05F3/18
Filed: 1975-04-22
Abstract: A Zener diode based circuit provides voltage stabilisation that requires only a small packaging volume and is therefore particularly suited to camera applications. The stabilised voltage supply is suitable for controlling the variation in camera aperture using a stepping motor. The stabilising circuit consists of a Zene diode operating together with a high resistance and a field effect transistor. The resistance is sized to the Zener diode to minimise the current consumption.
Patent DE-2518876-A1 (DE)
Title: Flux-time product determn in nuclear reactors - by measuring induced activity of indicator elements introduced into nuclear fuel casings
Inventor: FLECK CARL M DR
IPC: G21C17/06
Filed: 1975-04-28
Abstract: Determination of the local integrated flux-time prod. or the degree of the burning down of the nuclear fuel in a nuclear reactor is carried out by taking samples from the surface of the casings of the nuclear fuel contg. additives apt. to long-life induced activity and measuring the ratio of the induced activity to the weight of the metal concerned. Corrections for self-screening and flux depression of neutrons, declination of the activity during the irradiation caused by further reactions with neutrons, etc., should be introduced. By this method the cumbersome introduction of foils or wires of a material to be activated in a nuclear reactor is avoided.
Patent DE-2519268-A1 (DE)
Title: Foot massage pedal with free rotating rollers - with rollers on shafts near base of handle rod
Inventor: WENDT JOHN
IPC: A61H15/00
Filed: 1975-04-30
Abstract: The foot massage pedal with a square base has a rod shaped handle (15) fixed at right angles to it, the bottom end (15b) of the handle has a shaft (20) projecting out to either side of it at right angles to the handle axis and at a distance from the free handle end. A freely rotating roller (25, 26) is provided on each shaft section (20a, 20b). The shaft (20) is detachably fixed by screws (40, 41) and wing nuts (42, 43) to the handle (15) and a holding strap (160) is provided at the face upper handle end and approx the same length as the handle. The massager is more economically manufactured than the original design with fewer components.
Patent DE-2520228-A1 (DE)
Title: Vacuum vessel leak rate determining arrangement - uses permanent bulbless miniature lamp element sensor for quick, unambiguous results
Inventor: PIESCHNIK ULRICH ING GRAD
IPC: G01M3/26
Filed: 1975-05-07
Abstract: The arrangement for leak rate determination for evacuated vessels, e.g. the chambers of vacuum pressure measurement devices, operates in the pressure region 1 to 0.01 Torr, and gives unambiguous measurements whilst avoiding lengthy measurement intervals. A heat conducting vacuum gauge with an electrically heated resistance element is permanently sealed into the vessel. After evacuation and sealing of the vessel two pressure measurements are taken with the sensor, separated by a defined time interval. A miniature lamp element without a glass bulb may be used as the sensor. A constant current is supplied to the element and the voltage drop is measured to determine the pressure, the leak rate being derived from the difference in pressure measurements and the time interval.
Patent DE-2527696-A1 (DE)
Title: Magnetic supporting and guide system for transport - has track magnets facing vehicle magnet for ensuring levitation by repulsion
Inventor: JUNG VOLKHARD DIPL PHYS DR
IPC: B60L13/04
Filed: 1975-06-21
Abstract: The magnetic support and guide system for a transport system has a large number of units for generating supporting and guiding fields along a track. A stable magnetic support and guide system is achieved in two directions in vertical plane. It is also possible to incorporate highly compact superconducting energising solenoids. The supporting field is generated by two magnets (1, 2) and the levitated arrangements on the track consists mainly of a third set of magnets (8) which are held preferably in a vertical plane by the repulsion of the magnetic poles of the same polarity. The magnets in track are arranged at an angle to form a trough above which is placed the vehicle magnet facing downwards the trough with the same polarity.
Patent DE-2528527-A1 (DE)
Title: Spur gear train with equalised torque - has three gears meshed with one gear which is unsupported
Inventor: VATTEROTT KARL-HEINZ DIPL ING
IPC: F16H1/22
Filed: 1975-06-26
Abstract: A gear train has a driving gear (12) meshing with three first intermediate gears (13) arranged around the circumference of the driving gear and each secured to one end of a shaft. At the other end of each shaft is secured a second intermediate gear (13) meshing with a driven gear (11) which is coaxial with the driving gear. The shafts may be supported in bearings (14) which are fixed or which are on a planet carrier. Either one or both of the driving and driven gears are not supported in bearings. This is said to bring about equalisation of torque in the three transmission paths constituted by the intermediate gears.
Patent DE-2528965-A1 (DE)
Title: Blow moulding large thermoplastic containers - by extruding tubular preform forcing it into mould and completing moulding
Inventor: KOERMENDI KALMAN
IPC: B29C49/02
Filed: 1975-06-28
Abstract: Thermoplastic containers/hollow articles are blow moulded using a tubular preform closed at one end and a mould in several parts. With the mould open the base of the container is shaped directly at the mouth of the annular nozzle of an extruder/feed head by using the extruder/head pressure, its shaping is completed (or nearly so) using a separate part of the base of the mould. The preform is passed into the mould which is then closed and the container is finally fully blow moulded. An efficient process for making large containers is provided.
Patent DE-2530738-A1 (DE)
Title: Blockage prevention frame for public urinals - has flexible pear shaped screen with rib for removal
Inventor: KENTER WOLFGANG
IPC: E03D13/00
Filed: 1975-07-10
Abstract: The inserted frame for public urinals ensures that the drain is not blocked by discarded cigarette ends and other debris. The inserted frame does not prevent the normal operation of the urinal. Into the urinal is placed a flexible frame which supports a screen cover (3). The frame may be domed and has a pear shaped outline. Alternatively the frame may have a trapezoidal shape in which both parallel sides have convex domed arcs (6, 7). Suction pads can be moulded integrally into the frame for firmer anchoring. A removal rib is also integrally moulded into the frame to facilitate its removal and insertion.
Patent DE-2531185-A1 (DE)
Title: Chewing gum and other clinging paving dirt remover - comprises spray pipe with compressed water nozzles moving above surface
Inventor: HUISMANN HEINZ
IPC: E01H1/10
Filed: 1975-07-12
Abstract: The appliance is designed to facilitate the removal of clinging pieces of waste and dirt, esp. chewing gum from traffic-free city centre pedestrian precincts paved with washed concrete, or other paths or road surfaces. A spray pipe (4) can be moved about above the area of the surface (6) to be cleaned, at a predetermined interval. This has outlet-nozzles (5) for high-pressure water distributed over its length. The pipe may be adjustable by rotation about its longitudinal axis, and it may be housed in a protective hood (1), with sealing elements (7) underneath in contact with the surface being cleaned. It may be mounted on a mobile chassis.
Patent DE-2532587-A1 (DE)
Title: Condition monitor for two clock generators - is used in telephone systems to detector and indicates changes in clock period
Inventor: EISL BERT
IPC: G06F11/16
Filed: 1975-07-21
Abstract: The condition monitor, for two clock generators in telephone systems rapidly detects changes in clock period and automatically indicates such faults. The clock generators can be adjusted without affecting the monitor. A monitoring clock signal is released by a comparator comparing the generator clock signals. This monitoring signal drives two stepping circuits each connected at their outputs to the two clock generators. A third stepping circuit is also moved on by the monitoring clock signals and is connected to one of the comparators. The stepping circuits are connected to counters whose contents difference measures the difference in clock signals.
Patent DE-2539635-A1 (DE)
Title: Electromagnetic spark free sepn. of appts. receiving current - by mechanically sepg. primary and secondary transformer coils
Inventor: MUTZHAS MAXIMILIAN FRIEDRICH D
IPC: H01F27/33
Filed: 1975-09-05
Abstract: Power supply section feeds the primary side of a transformer and the secondary side of the transformer supplies electrical energy to the power-consuming section of the appts. The appts. is separated, whilst under tension, from the power supply without the setting up of dangerous sparks, by a device which breaks the magnetic circuit of the transformer between the primary side and the secondary side, mechanically. Pref. the primary side of the transformer is dimensioned so that during continuous operation it acts as an open chock, since after the mechanical separation of the secondary side, the primary flow rises considerably. Method is esp. for use in zones where there is the risk of explosion, as in mines, refineries, paint works, etc.
Patent DE-2544220-A1 (DE)
Title: Window frame for caravan - with one piece plastic moulding to locate in van and on sealing strips
Inventor: GOESSER CURT
IPC: B60J1/14
Filed: 1975-10-03
Abstract: The caravan window pane is located in a one-piece plastic frame with vertical flanges to locate inside the window opening, and horizontal flanges to provide vertical location. The inside of the pane is secured in the frame by an elastic sealing strip. One edge of the frame can be fitted with a flexible strip which allows the window to tilt for opening. The frame is sealed against the side of the caravan by foam sealing strips. The frame is simple to fit and replaces the multi-part aluminium frame with corner pieces. It does not corrode and is thermally insulating.
Patent DE-2552106-A1 (DE)
Title: Internal combustion driven impact tool - has driving piston cylinder connected by valve to combustion chamber round outside
Inventor: NAKAZATO TAKASHI
IPC: F01L9/10
Filed: 1975-11-20
Abstract: The tool e.g. nail gun has a valve (18) connecting an upper piston chamber (121) in a cylinder with a combustion chamber (15) round the outside of the cylinder wall when an explosion is caused in the combustion chamber. A piston (14) working in the cylinder actuates a driving tool (142a). The valve can be arranged normally to connect the upper piston chamber to atmosphere, and cut off the passage from the combustion chamber, the converse applying when an explosion takes place. The valve can be operated by a feeler unit (50) detecting the rise in pressure in the combustion chamber due to an explosion.
Patent DE-2552598-A1 (DE)
Title: Solar heating unit radiation absorber - has absorbing surfaces arranged in zig zag formation with reflecting mirrors
Inventor: RUECKSTAEDTER HANS
IPC: F24S23/77
Filed: 1975-11-24
Abstract: A solar heating panel which makes maximum use of radiation incident at all angles, has a rectangular casing with solid sides and base. There is a glass cover across the top. Inside is a series of absorbing black surfaces which are parallel to each other and which are all at an angle to the direction of the base. They are connected to each other by flat reflecting surfaces which are all parallel to each other and perpendicular to the absorbing surfaces. The reflectors and absorbers thus form a continuous zig zag surface across the centre of the casing. The space between them and the base is filled with insulating material and the space above them is left clear.
Patent DE-2602283-A1 (DE)
Title: Metal screw locking device - has split shank forced apart by dowel driven into tapered bore
Inventor: ESSICH HELMUT
IPC: F16B39/02
Filed: 1976-01-22
Abstract: The metal screw (12) is split into two legs (30) by a central cut which extends almost to the head (14). There is a central tapered hole extending from the head (14) almost to the end of the shank. The screw is locked by driving a parallel pin with a pointed end into the tapered hole. The pin forces the legs (30) apart causing them to bite into the thread of the tapped hole (24) and so providing a secure form of locking. This method can be applied to screws with any type of head, countersunk, hexagonal or round.
Patent DE-2606021-A1 (DE)
Title: Combined signal for roof of patrol car - has extra light to illuminate identity code on roof to assist identification by helicopter
Inventor: HAGER KLAUS
IPC: B60Q1/26
Filed: 1976-02-14
Abstract: The roof fitting of the patrol car has a flasher housing (46) on a special socket (42). This incorporates a loudspeaker as well as a light (44) directed over the roof, and switched on with the car lights. The roof light illuminates the roof mounted identity code for patrol helicopters. The fitting can be extended using two flashers straddling the loudspeaker/indicator board assembly on special patrol vehicles. The whole assembly can be a streamlined fitting which is simple to mount on the roof.
Patent DE-2607162-A1 (DE)
Title: Repetitive sampling appts. for liquids partic. water - has liq. indicator reservoir permanently connected through valve to sampling vessel
Inventor: DULGER VIKTOR
IPC: G01N33/18
Filed: 1976-02-21
Abstract: An appts. for investigating liq. samples, esp. samples of water, uses liq. indicators, e.g., those which cause a modification in the colour or other visible property of the water sample. A transparent sample vessel is permanently connected to >=1 indicator containers, each capable of storing sufficient indicator for a large number of investigations. The interconnecting duct between the indicator container and the sampling vessel contains an externally operated metering valve. Used for laboratory tests on liqs., esp. water, the arrangement enables all the equipment to be kept in one unit, thus avoiding possible loss of small vessels contg. the indicators, and reducing the number of handling operations involved in the use of test tubes and similar vessels. Appts. is compact and considerably reduces the sampling time.
Patent DE-2613316-A1 (DE)
Title: Flat ceramic blank grouping machine - has conveyor delivering between rotary vertical discs with grip rams
Inventor: ERMERT REIMUND
IPC: B65G57/24
Filed: 1976-03-29
Abstract: The machine erects, groups and inverts flat ceramic blanks, delivered individually by a conveyor. The conveyor (1) delivers the blanks (2) between the upwards-travelling peripheral portions of two parallel vertical extractor discs (6), rotating in synchronism. The discs have grip rams in pairs, coaxial to each other and sliding towards each other from the startling position, each pair securing a blank by the edges and lifting it above a grouping track (10). Supports (12) are provided on this track, at intervals equal to the length of the packets (13) to be assembled. There is an invertible stacking tongs (18) above the track discharge end.
Patent DE-2631261-A1 (DE)
Title: Toilet seat covering strip holder - consists of reel on each side fixed to stand adjustable in height and width
Inventor: BENO FERDINAND
IPC: A47K13/22
Filed: 1976-07-12
Abstract: The strip of hygienic material covering the toilet seat is wound from one side of the seat to the other by means of a reel on each side. The two reels are mounted on stands (A, B) resting on the ground. The stands are fixed together underneath the seat (13) on their sides positioned in front of the seat. Each reel has a guide piece for keeping the toilet seat covering strip taut and parallel between the two reels. The two stands (A, B) are joined by a bar (1) in the middle of which is an adjustable intermediate piece leading to the front of the seat (13). Each stand (A, B) has a height adjustment mechanism (17, 21, 23) for the reels in relation to the height of the seat (30) of the toilet (13). The distance between the two stands can also be adjusted to the width of the toilet (13). The toilet seat strip has perforations in for tearing off.
Patent DE-2632471-A1 (DE)
Title: Automatic information transmission and copying system - uses scanner to to transmit information with receiver monitor for display followed by photosensitive paper copy
Inventor: ZAENGERLE ALFRED
IPC: H04N1/00
Filed: 1976-07-19
Abstract: An automatic system is proposed for the transmission of documented information to a receiving station where it is displayed and then reproduced on paper as a permanent record. The document in the form of a clear foil with printed characters, is located in a closed unit where it is scanned and the information transmitted as electronic signals. The receiver station converts the signals to a form appropriate for display on a monitor, as a negative image. Photo-sensitive paper is used is used to obtain a permanent record.
Patent DE-2635944-A1 (DE)
Title: Reduced stress machine saw blade - has rear side stretched into convex arched shape to reduce strain at teeth base line
Inventor: THOERESS JOSEF
IPC: B23D61/12
Filed: 1976-08-10
Abstract: The machine saw blade with teeth on one side has perforations running lengthways, offset relative to the blade centre towards its rear side. This enables tensile stress exerted on the blade to be conveyed to the areas on both sides of the perforations. It reduces specific tension forces in the area between rear and perforations, relative to the area adjoining the tooth base line. The rear side of the blade is arched into a convex shape, by stretching. On a straight line measurement, the front length of the blade can be less than the rear length.
Patent DE-2641268-A1 (DE)
Title: Methyl-heptenone prepn. from methyl-hydroxy-heptanone - by heating with acid catalysts while preventing escape of reaction intermediate
Inventor: AQUILA WERNER DIPL CHEM DR
IPC: C07C45/66
Filed: 1976-09-14
Abstract: Prepn. of 2-Me-1- and 2-Me-2-hepten-6-one (Ia and Ib) comprises heating 2-Me-heptan-2-ol-6-one, (II), or residues contg. (II), to 80-300 degrees C in the presence of strongly acid catalysts. The escape of 2,2,6-trimethyl-2,3-dihydro-4H-pyran, (III), formed as intermediate, from reaction mixt. is prevented, by working in a closed system under press. of reactants or pref. by using a reaction vessel fitted with a reflux condenser and a phase sepn. vessel. Vapour mixt. of (III) and H2O is condensed; H2O is removed and (III)-rich upper phase is recycled to reactor. (I) are intermediates for synthesis of carotinoids and perfumes, e.g. isophytol and ionone.
Patent DE-2648724-A1 (DE)
Title: Heating stage for applying fusible fabrics - has the section divided into sub-zones for fine adjustment
Inventor: MEYER WERNER DIPL ING
IPC: A41H43/04
Filed: 1976-10-27
Abstract: In bonding layers of fabrics together by adhesive, the materials are carried on a conveyor in succession through a heating zone, a press station and opt. a cooling station. The heating zone is divided into a number of successive heating zones, at least, in the direction of workpiece travel. These sub-zones can be switched on and off by a combined switching unit linking them with the energy source. Designed partic. for applying fusible interlinings in the lingerie and outwear mfg. industries, where the plastic adhesive is applied in points by a screen, the equipment gives an additional adjustment stage to give the optimum conditions for adhesion between the fabric layers.
Patent DE-2649402-A1 (DE)
Title: Curing agent for epoxy! resins - comprises biguanide and opt. cyanamide or dicyandiamide
Inventor: BORNMANN PAUL DIPL CHEM DR
IPC: C08G59/40
Filed: 1976-10-29
Abstract: A curing agent for thermally curable epoxy resins comprises an unsubstd. bisguanide of formula (I) opt. in mixt. with other components. (I) is soluble in most epoxy resins and is so active that the resin is completely cured at 140 degrees C. Low amts. of (I) are needed to cure the resin. In an example an epoxy resin (epoxy value 0.111) contg. 1.6% (I) was cured in 1 min. 35 sec. at 180 degrees C, 3 min. at 160 degrees C and 7 min. at 140 degrees C.