baber/WOPTO huggingface dataset:
Patent DE-2547555-A1 (DE)
Title: Heat stable urethane elastomers - are block copolymers of aromatic diisocyanates, bifunctional polyethers or polyesters, and polyarylates
Inventor: KOLZOV LEONID ALEXANDROVITSCH
IPC: C08G18/10
Filed: 1975-10-23
Abstract: The elastomers, contg. a crosslinking agent, are block copolymers polymers of aromatic di-isocyanates (I), bifunctional polyethers (-esters) (II) and polyarylates (III). (III) are prods. of the polycondensn. of bisphenols and aromatic dicarboxylic acids. The elastomers have a mol.wt. of 10-50 x 103., the molar ratio of (I):(II):(III) is 1.6-3.5:1.0:0.5-1.5; and 1-28(2-10)wt.% of (III) is present. The prods. have high strength, abrasion resistance, elasticity and oil resistance, and are used, e.g., in the motor industry, engineering trade, shoe industry, furniture industry, and in prepn. of insulants, fibres, coatings, etc. The above molar ratios ensure high elasticity and thermal stability without modification of mfg. processes. In an example, 500 g. polyethylene adipate, dried at 110 degrees C, and 92.58 g. 2,4-toluylene diisocyanate were reacted at 96 degrees C to form a prepolymer 6.49 g. polyarylate, from iso-/tere-phthalic acid and diphenylolpropane, were added, followed by 56.85 g. 3,31-dichloro-4,41-diamino-diphenylmethane, and the mixt. was moulded for 20 mins. at 150 degrees C and 35 kp/cm2.
Patent DE-2552970-A1 (DE)
Title: Logic protective system with switching transistor - has two timers and periodically switches transistor on and off and monitors output levels
Inventor: SCHATZ DOUGLAS S
IPC: H02H7/122
Filed: 1975-11-26
Abstract: The switching transistor generates an output power signal oscillating at a specified frequency between two specified levels. Two timers generate signals determining two test intervals during sections of opposite half-periods. Output signal levels are monitored by two logic circuits, which, when a deviation is detected from one of the two levels during both test intervals, deliver a fault signal. The logic circuits consist of first AND circuits to which one timing signal and output signal are applied; second AND circuits to which the second timing signal and inverted output signal are applied, and third gates connected to the outputs of the above AND circuits.
Patent DE-2604259-A1 (DE)
Title: Pressure limiter for series-operated hydraulic motors - has pressure relief preventing overloading or starving one motor while other runs at different speeds
Inventor: CAMPBELL JOHN JASPER
IPC: F16H61/40
Filed: 1976-02-04
Abstract: The design concerns a pressure limiting arrangement for front wheel drives using two hydrostatic motors coupled in series. In normal operation it is possible that one of the motors may turn at a higher speed than the other. As the two motors are connected with each other, this type of operation might cause problems when the vehicle is reversing. If the upstream motors turns at a higher speed than the downstream motor, the upstream motor acts as a pump and tends to overload the downstream motor, causing slippage on the wheels or possible damae to the motor, and conversely. In the new circuit, a set of arrangements, in the case of a possibility of undesirable overload, relieves part of the pressure, and in the base of cavitation provides flow of additional fluid to the starved motor.
Patent DE-2606135-A1 (DE)
Title: Expanding shell projectile for muzzle loading firearms - has expanding sealing shell with air escape holes and separate bullet
Inventor: HELLWIG WOLFGANG
IPC: F42B14/02
Filed: 1976-02-17
Abstract: The expanding case is used in muzzle loading firearms which are becoming more popular due to more stringent firearm licensing laws. The expanding projectile is not associated with disadvantages such as lead depositing in the barrel and need for wadding or ramming for ensuring efficient firing. The cylindrical bullet has hollow casing which has perforations for passage of air. This shell can be made from plastics, cardboard, aluminium or nonferrous metals. The projectile core can be made from lead, iron or other heavy materials. The shell expands without crushing on firing and it expands so that its holds the projectile core and it is pressed simultaneously into the barrel rifling.
Patent DE-2610615-A1 (DE)
Title: Vacuum leak indicator for storage vessels - has vacuum switch controlling ejector exhausting monitoring chamber and compressor outside danger area
IPC: B65D90/503
Filed: 1976-03-13
Abstract: Indicator is for storage vessels with a monitoring chamber, particulary those containing explosive liquids. An ejector is connected to the monitoring chamber, and is controlled by switchgear actuated by the chamber pressure, and an optical and/or acoustic alarm is also provided. A measuring unit (5) is mounted in the danger area, and has an air-operated ejector (8) connected by an exhauster pipe (9) to the chamber (2). A non-return valve (10) for explosive vapours is mounted in the pipe, and a vacuum switch (11) is connected via a measuring pipe (18) to the chamber, and controls the ejector. Outside the danger area is a unit with a compressor (24) supplying the ejector also pressure gauges and alarm equipment.
Patent DE-2615128-A1 (DE)
Title: Random copolymer contg. quat. ammonium ester of unsatd. acid - with high water adsorption and bacteriostatic action, esp. for medical use
Inventor: BEEDE CHARLES HERBERT
IPC: A61K9/70
Filed: 1976-04-07
Abstract: A random copolymer is prepd. by copolymerisation of (A) (1) 10-90 (10-80) wt.% of an ester of an alpha, beta-olefinically unsatd. carboxylic acid and a mono- or poly-alcohol with a terminal quat. ammonium group and (2) 90-10% of >=1 alpha, beta-olefinically unsatd. comonomer which can be dispersed in an aq. medium, in presence of (B) >=0.02% of a difunctional monomer, which is an ester or amide of an alpha, betha-olefinically unsatd. carboxylic acid and which is dispersible or sol. in an aq. medium, as cross-linking agent. The comonomer (2) consists of (a) >=10% of an acid monomer, or (b) >=20% of an amide monomer, or (c) >=10% of a mixt. of acid and amide monomers contg. >=5% of an acid monomer. The copolymers can be used as lubricant coatings on medical appts., e.g. rectoscopes, rectal thermometers, and surgical gloves, to form articles such as contact lenses, or to produce transparent self-supporting films, for use as e.g. wound dressings. As a dry powder, the copolymer can be used as a thickener in aq. coatings compsns., or be used in paper prods., e.g. as handkerchiefs or disposable napkins for babies. The copolymers are hydrophilic, with high water absorption capacity (10-125x the wt. of the copolymer) and are bacteriostatic. Copolymerisation gives a hydrocolloidal dispersion with viscosity 40-10000 cS at 25 degrees C, which is stable for 1-24 months at room temp.
Patent DE-2621026-A1 (DE)
Title: Window with two part frame - has bolts acting as guide pins in slots of sealing strips
Inventor: KIRSCH BERNHARD
IPC: E06B7/28
Filed: 1976-05-12
Abstract: The window or door has a fixed frame in two parts enclosing a space between them and belted together. Sealing and locking strips, working with guide slots and bolts, are accommodated in the space and fit in a groove in the door- or window-leak frame. The strips (8) have guide slots (10), and the bolts act as guide pins (6), also holding the frame parts apart. One or both of the frame parts can be of U-section open on the opposite side to the strip, the open side being closed by a cover. The drive mechanism (13) for the strips is accommodated inside it. There can be elongated holes (15) in the strips at right angles to the guide slots, into which the eccentric pins (14) of the drive mechanism fit.
Patent DE-2624747-A1 (DE)
Title: Elimination of fixed and parasitic radar images - involves digital processing of echo phase comparison circuit outputs, and use of reference signal
Inventor: MCLEOD JUN WILLARD W
IPC: G01S13/524
Filed: 1976-06-02
Abstract: Fixed object return radar echoes with a constant phase relationship to a reference signal while moving objects return variable phase signals. The phase comparison of these signals is converted into digital words for elimination of fixed and parasitic echoes while retaining moving target echoes. It-phase and quadrature radar signal resulting from reception of echoes are compared (37) with reference signal phasing to produce signals (39, 41) which are then converted (10) from analogue signals into digital words. These workds give echo distance and are processed (48, 50) by combining part of workd from one exploration with part of another exploration to produce correction signals representing average Doppler speed. Further combination and processing is effected to eliminate parasitic moving echoes.
Patent DE-2633483-A1 (DE)
Title: Control circuit for electric storage heater - combines commands from timer and thermostat to control heating current supply
Inventor: SIMONIS KARL ING GRAD
IPC: G05D23/275
Filed: 1976-07-26
Abstract: The control circuit, for an electric storage heater, has its heating element controlled by a timer and the temp. of its storage core by a thermostat. The control signals from the timer (10) and the thermostat (8) are ANDed and the result used to operate a relay (5) in the heating element's supply circuit. The AND-function is performed by connecting timer and thermostat contacts in series with the relay's coil. The advantage lies in combining commands from the timer and the thermostat.
Patent DE-2639164-A1 (DE)
Title: Fuel injection line pressure sensor - has split housing with incompressible fluid filled chamber and membrane actuating transducer to sense pipe expansion
Inventor: WEINECK HANS DIPL ING
IPC: G01L7/08
Filed: 1976-08-31
Abstract: The unit is for sensing and measuring of the expansion of a fuel injection pipe due to pressure during the injection cycle. The unit is mounted on the outside surface of the fuel injection line and consists of a casing. Recesses form with the external surface of the pipe (1), a chamber which is filled with incompressible fluid. The bottom part recess (6) is enclosed by a membrane fitted between an intermediary piece (3) and the bottom casing (2). On the underside of the membrane a further recess (11) contains a piezoelectric pressure plate (13) resting with the top surface against the membrane and the bottom surface against contact plate.
Patent DE-2640706-A1 (DE)
Title: Seat belt reminder for driver - has optical or acoustic signal triggered by time switch which disconnects ignition circuit on attempt to start engine
Inventor: RITTIRSCH KARL
IPC: B60R22/48
Filed: 1976-09-10
Abstract: The purpose of the device is to remind motor vehicle drivers to put on safety harness before attempting to start the engine. An optical or acoustic signal is triggered by a time switch which temporally disconnects the ignition current each time an attempt is made to start the engine. The signal apparatus may be integrated with the usual electrics on the instrument panel in new vehicles. For vehicles already in use, the apparatus may be made as a compact unit and the display fixed by magnets or adhesives in the drivers field of vision.
Patent DE-2644195-A1 (DE)
Title: Dephosphorising liq. pig iron in steel mfr. - using a single slag process
Inventor: SASAKI KANTARO
IPC: C21C1/02
Filed: 1976-09-30
Abstract: A process for dephosphorising liq. pig iron before charging into a furnace for mfg. steel is described. A dephosphorising agent and an oxidising agent are added to the pig iron to adjust the CaO content to 0.3-3 times the sum of the SiO2 and P2O5 content and give a T. Fe value (the oxidising power of the slag) of 15-50% w.r.t. the compsn. of the dephosphorisation slag after treatment. The dephosphorising agents are limestone, lime, converter glag or Fe oxide. a single slag process can be employed and productivity is not affected.
Patent DE-2649923-A1 (DE)
Title: Sewing machine speed control - has a data store giving maximum speed signals for each selected pattern
Inventor: WATANABE KAZUO
IPC: D05B3/02
Filed: 1976-10-29
Abstract: Appts. is claimed for controlling the rotary speed of a sewing machine motor for pattern stitching, where the motor drives the needle and the fabric advance mechanism. A data store carries the information for each pattern to be executed which include the maximum rotary speed permissable for each pattern. The signals control the motor so that its speed does not exceed the tolerance for each selected pattern. The system ensures that each pattern can be executed accurately without distortion through high speed running during certain phases, in a design which is more flexible than conventional servo or pulsed motor systems.
Patent DE-2650288-A1 (DE)
Title: Moulded plastics pallet for stacked fish boxes - is tray shaped to collect water from melted ice
IPC: B65D19/38
Filed: 1976-11-02
Abstract: Pallet (2) which is made from reinforced plastic, is loaded with stacked boxes of food stuff, such as fish, mixed with ice. In order to collect the water from the molten ice during transit, the pallet has raised edges to make it tray shaped. Perpendicular support webs (6, 7) are provided in order to form a base for the stack of boxes. The compartment formed by the webs are linked together so that the collected water can flow between the different areas. This ensures that a common water level for all pallet compartments (8) is obtained.
Patent DE-2651104-A1 (DE)
Title: Foam-producing unit for carpet shampooer - uses intake air of vacuum cleaner to squeeze fluid-supplied sponge to provide relatively dry foam
Inventor: LEKUSE EDUARD DIPL ING
IPC: A47L11/32
Filed: 1976-11-09
Abstract: The foam-producing unit for carpet shampoo cleaning etc. uses the air circulated by the vacuum cleaner to produce a foam from a cleaning liquid which is supplied to a sponge (11) which is mounted in a housing chamber (12) provided with outlet openings (13) for the cleaning foam. The sponge is squeezed intermittently along at least part of its surface by a drive unit (6) which is moved by the intake air of the vacuum cleaner. The sponge is pref. disc-shaped and set between a pressure plate (9) which is moved to and fro by the drive unit (6) and a counter pressure plate (10) set in the housing chamber (12). The foam produced in this way is drier than foam produced by blowing air into the fluid.
Patent DE-2653899-A1 (DE)
Title: Transfer drum for electrostatic copier - uses conducting materials and foam layer with drum running eccentrically between isolating bands
Inventor: EPPING REINHOLD H DR
IPC: G03G15/16
Filed: 1976-11-27
Abstract: The transfer drum for an electrostatic copier uses different principles to conventional high voltage and corona discharge types. The motorised drum (1, 2) is made out of electrically conducting material. The metal drum (1) is coated with an electrically conducting foam material (2) which carries the duplicating paper. The drum runs eccentrically between isolating bands on its axis (7) and is driven by a motor (8). An electrical potential is connected to the foam from an external source (9) through spring and slip-ring contacts (10, 11).
Patent DE-2659834-A1 (DE)
Title: Prodn. of aq. foams for chemical cleaning - using air-operated reciprocating pump linked to air injector
IPC: B08B3/00
Filed: 1976-09-24
Abstract: A double-acting reciprocating liquid pump is operated by a double-acting air cylinder whose air supply is controlled and switched from a valve unit actuated by movement of the piston rod. Air is injected into the pump delivery from the same supply source. Used in prodn. of aq. foams by aerating an aq. soln. of chemicals, for chemical cleaning purposes partic. in meat processing. The simple construction is partic. suited to small installations.
Patent DE-2700824-A1 (DE)
Title: Check system for running exercises - consists of adjustable scales of regulating resistance on which weight and height are translated into optimum steps per minute for runner
Inventor: HEMMANN ERNST DR MED
IPC: G04F5/02
Filed: 1977-01-11
Abstract: Installation provides a comparative ergometric check for running exercises. A controllable metronome with adjustable controls ascertains the number of steps per minute which correspond to the runner's weight and height. The adjustable controls based on experience gained from the cycle and running ergometry, are in the form of scales movable in relation to each other and forming part of a regulating resistance. The adjustable scales are fitted in such a way that in order to carry out an ergometric check under physiological conditions the number of steps per minute, the body weight and the height of the runner are brought into the correct relationship.
Patent DE-2710824-A1 (DE)
Title: Tied bale production machine - uses reciprocating ram in baling chamber and acting against tied bale in outlet
IPC: B65B27/12
Filed: 1977-03-11
Abstract: The machine produces tied bales of paper or similar material, using a tied bale (78) positioned between a top and a bottom wall, with one end near the outlet from a bale-forming chamber. A ram (26) reciprocates in this chamber, into which the material to be baled is loaded. The action of the ram gradually forms a bale (82) against the end of the tied bale, at the same time thrusting the new one between the top and bottom walls and the tied one out from between them. The tied and untied bales are parted after the former has been fully expelled from between the walls, after which horizontal loops of strip material are placed round the untied one.
Patent DE-2711356-A1 (DE)
Title: Cable drive for headlamp and windscreen wipers - has shortened cables and springs to compensate for extra travel
Inventor: WALL NILS TORGNY
IPC: B60S1/60
Filed: 1977-03-16
Abstract: The headlamp/windscreen wiper blade is driven by a plate (22) which is coupled to a drive plate (39) by two cable drives (37). The drive plate is mounted on the motor gear box (11) and is driven by a crank (44) for the reciprocating motion. In order to ensure accurate drive the cable drives are shorter in their stroke than required by the drive plate, and are coupled to the driven plate by springs (35). The springs take up any extra travel in the drives and ensure an accurate positioning of the wiper blades. This ensures that the blades are not damaged by the edges of the headlamps etc. The springs can be coil springs or elastic pads.
Patent DE-2713238-A1 (DE)
Title: Stone or concrete conservation medium spraying - using rhythmic application with pauses allowing thorough penetration in pores
IPC: E04G23/02
Filed: 1977-03-25
Abstract: The process for conservation of natural or artificial stone or concrete, or of structures (1) or works of art. It involves spraying the surface with a solution of a hardening medium which penetrates the pores. Spraying is carried out rhythmically, with operative period and intervals times so that virtually the whole quantity of solution sprayed on during any one sequence is absorbed by the stone during the ensuing pauses. The machine for this can have a pump (5) for the material, with a pref. adjustable switch or regulator device (6).
Patent DE-2714324-A1 (DE)
Title: Photoelectric system for travelled distance measurement - has reflecting scale grid, transparent reference grid and two photoelectric receivers
Inventor: WILLHELM JOERG DIPL ING
IPC: G01D5/38
Filed: 1977-03-31
Abstract: A photo-electric system uses incident light and has a light source, a reflecting scale grid and a transparent reference grid whose optically active grid constants are in the ratio dR = dS (1(+-)v), with v = dS/(Y+dS) representing a distortion factor and y the distance between bright and dark lines of a Vernier pattern generated by the grids. At least two photoelectric receivers are provided in the light direction at a distance x from the grid with the greater grid constant. Here x = a/v, with a the optically effective distance between the reference and scale grid, with their distance from each other not equal to ny/2, where n = 1, 2, 3..... The reference grid (11) is a phase grid whose diffraction characteristic, taking into consideration the distortion factor v, at least approx. coincides with that of the scale grid (12).
Patent DE-2717552-A1 (DE)
Title: Eccentric steel rod shears - with reciprocating lever moved by electromagnet actuated rocker against slide roller
Inventor: KLAUS SIEGFRIED
IPC: B26D5/14
Filed: 1977-04-20
Abstract: Eccentric driven shears for steel rods and wire consist of a lever with a linkage to a crankshaft at one end and with the other end carrying the cutting blade and guided between guide plates. A rocker, operated by an electromagnet, can move the lever from a position where the path described by the blade is clear of the workpiece, to a position where one side of the lever slides against a roller to cut the workpiece on the downstroke. A motor (20) drives a crankshaft (15) which is coupled by a crank (17) to the lever (5) carrying a shear blade (11) at the other end where it is guided between guide plates (3, 4). When a rocker (10) hinged to the lever and to the armature (9) of an electromagnet is moved forward to cause the lever to slide against a roller (12), the shear blade exerts a cutting stroke on each 'down' travel but swings clear on the 'up' travel.
Patent DE-2717769-A1 (DE)
Title: Lighting unit assembly for insertion into panel - is completely prewired and has harness connector on conductors for immediate coupling to complementary connector
Inventor: DOLA FRANK PETER
IPC: H01R4/24
Filed: 1977-04-21
Abstract: Lighting unit assembly which is adapted to be mounted in a panel comprises a housing having wall portions which define a set of enclosures, each enclosure surrounding a lamp bulb mounting site. The lamp bulbs are mounted in removable lamp bulb connectors which have contact terminals in contact with the bulb and are also in disengageable contact with terminals in a tap connector. The tap connectors are mounted in the housing adjacent to the lamp bulb sites. The conductors extend through these tap connector housings and are electrically connected to the tap connector terminals.
Patent DE-2720390-A1 (DE)
Title: Power operated machine tool chuck - has pressure operated actuator for each jaw sliding in chuck body
Inventor: HEISEL ALOIS
IPC: B23B31/16
Filed: 1977-05-06
Abstract: The power-operated machine tool chuck is particularly for lathes, having jaws sliding in radial grooves. Each jaw (4) of the chuck (1) has a pressure-operated actuator (26, 27) sliding directly in the chuck body (2). The actuators are pressurised individually, in groups, or all together. They can each he in the form of a piston (26), pressurised on one or both sides, and whose piston and (28) acts against the respective jaw, typically via a slide block (39) working in a recess (42) in the chuc body. There can be recesses on both sides of the jaw in the body to accommodate the block, their axial length corresponding to the piston stroke. The angles of the boss engaging in the recess in the jaw can give a self-locking action to the jaw.
Patent DE-2725298-A1 (DE)
Title: Educational exercise device with LED or liq. crystal display - has selectable stored programmes with answers selected from array of contacts by pen
Inventor: KUHN FRANZ JOSEF
IPC: G09B7/06
Filed: 1977-06-04
Abstract: The educational exercise device can be used both in class and for self study. Operation of one of two rows of switches selects one of several fixed stored programmes. Answers to the corresponding exercises in a book are selected from an array of metallic contacts with a pen. A correct answer is indicated by a green light and an incorrect answer by a red light. A LED or LCD display shows the total number of correct and incorrect answers for the selected programme. Successive attempts at one exercise, which must be answered correctly before the next exercise is begun, are not registered on the display.