baber/WOPTO huggingface dataset:
Patent DE-2460876-A1 (DE)
Title: Washing machine twin motor operation - uses induction motor for washing and series-wound motor for spinning
Inventor: BEY EWALD
IPC: H01R39/38
Filed: 1974-12-21
Abstract: The double motor in a washing machine is operated in such manner that during spinning operation the carbon brushes of the series-wound motor are pressed against the collector, while in washing operation the carbon brush pressing is relieved and no force is exerted on the brushes in longitudinal direction. The double motor consists of an induction motor for the washing operation and a series-wound motor for spinning. Preferably during spinning an electromagnet so affects a transmission element, as to release a coupling connection. As a result a brush compression spring can transmit the necessary pressure to the motor brushes. During washing operation the electromagnet may be deenergised so that a spring actuates the coupling for spring force relief.
Patent DE-2500039-A1 (DE)
Title: Test body for investigating physical properties of thermoplasts - consisting of equilateral polygon with grooves on top face
Inventor: BUCHHOLZ EMIL ING GRAD
IPC: G01N33/44
Filed: 1975-01-02
Abstract: Plate-shaped test body for investigating the physical, esp. the technological props. of thermoplasts, esp. for injection moulding, has the bottom/top faces formed in the shape of an equal-sided polygon, while the top face is provided with grooves running diametrically at right angles to the front faces of the body. Appts. enables all physical tests, including tensile strength, impact resistance, notched impact resistance, flex resistance, and shrinkage under the influence of temp., moisture and chemicals, to be effected easily in a normal testing machine.
Patent DE-2501275-A1 (DE)
Title: Press with hydraulic overload protection - has discharge valve and pressure measuring devices connected to hydraulic cushion
Inventor: SCHNEIDER FRANZ
IPC: B30B15/00
Filed: 1975-01-15
Abstract: The mechanical drive components of the press act on the slide via a pressure pad in the form of a hydraulic overload protection unit, and a compressed-air ram connected between the slide and the press frame counterbalances the weight of the slide and the upper tool mounted on it, the pressure in the ram being adjusted to the necessary level. A discharge valve functioning before air pressure is adjusted, and a pressure measuring device of high sensitivity in a zone including zero bars pressure, are connected to a pressure pad. The valve is controlled by a regulator unit for the air pressure, and the measuring device works in conjunction with valves delivering compressed air to, and discharging it from, the counterbalance ram.
Patent DE-2509796-A1 (DE)
Title: Rear light fitting for tractor - has universal frame to fit onto hitch and adjust to size of attachment
Inventor: SCHEER FRANZ
IPC: B60Q1/30
Filed: 1975-03-06
Abstract: The rear lights of the tractor are connected by a detachable plug to a frame slung under the raised working attachment on the hitch. The frame comprises longitudinal adjustable arms (10) and front and rear transverse bars (8, 9) at the ends of which are fitted the lights and is slung from the underside of the working attachment by a chain and hook (16, 17) to be set at the required height. The size of the frame is adjusted to suit the size of the working attachment, and if the attachment extends over the sides of the tractor then the front of the frame can be fitted with forward directed lights. The frame is removed when the tractor is working to prevent damage to the lights.
Patent DE-2510235-A1 (DE)
Title: Damping device on pressure control valve - provides fine adjustment of pressure using friction clamp in lower valve case
Inventor: GOETTLING HELMUT
IPC: G05D16/06
Filed: 1975-03-08
Abstract: The friction clamp moves with a light expanding action in a sleeve connected to a metal sylphon bellows. The pressure of a control spring is also applied to it, so that a minimum friction force is mechanically generated between the clamp and the sleeve. It prevents sudden oscillations of the sleeve and the control piston, thus ensuring an exact opening and closing of delivery and venting valves free from oscillations and interconnected by a pin, during a delivery or venting operation. If the air pressure in the working lead falls below a stipulated value the control piston rises, of necessity, against the bellows.
Patent DE-2518152-A1 (DE)
Title: Device with warning means used against attacker - representing toads or skunks to ward off a potential attacker
Inventor: ILLGUTH GUSTAV
IPC: G08B15/00
Filed: 1975-04-24
Abstract: The protection device is used against an attacker and has warning means in the form of pictures of skunks, toads and similar objects, chosen so as to repulse and ward off the potential attacker. The pictures are pref., liminous or reflective, so as to provide impact especially at night. The device may be in the form of an arm band or belt or may be incorporated in an item of clothing. The device can also be fixed to a bicycle or to a handbag and is designed to ward off a potential rapist.
Patent DE-2522360-A1 (DE)
Title: Plastics cage for roller bearing - has concave sided arms interconnected at one end by thin hoop
Inventor: KRAUS GERHARD
IPC: F16C33/46
Filed: 1975-05-21
Abstract: The cage for roller bearings comprises a plastics moulding with circumferential arms (2) defining between them spaces (3) for the rollers and extending axially. At one end, the arms are connected circumferentially by a band (1) spanning all the arm. At their other ends the arms are free. To ensure that the bearing case does not distort into a conical shape as a result of banding at one end only, the connecting band has shallower radial height than the arms. The connecting band may be flush with the radially inner or the radially outer surfaces of the arms.
Patent DE-2525545-A1 (DE)
Title: Spinning machine yarn length controlling device - with individual yarn length counters resetable by common remote resetting device
Inventor: STUEBER WOLFGANG
IPC: B65H63/08
Filed: 1975-06-07
Abstract: The resetting device reads a preset length value into the counters, and pref. each of the contents is provided with a preset length value indicating device which is arranged to receive the preset value from the resetting device in the form of an electric signal. Signal is fed to the counter following a preliminary prescribed actuation. Remote control dispenses with visual check by operators. Counters can be serviced remotely without the intercession of an operator. Speed of spinning machine can be increased.
Patent DE-2528399-A1 (DE)
Title: AC supply for fan motors in video displays - has oscillator and switching circuit synchronised with frame frequency
Inventor: KUPKA DETLEF
IPC: H02M7/537
Filed: 1975-06-25
Abstract: The AC supply circuit for driving fans in video display units comprises an oscillator and a switching circuit. An astable multivibrator circuit (OS) comprising an operational amplifier (V) is synchronised with the frame frequency pulses from the display unit (TA1). Its output is a square-wave pulse (S1) which is used to control a switching unit (SS). The pulse has a mark-space ratio of 1:1. The switching unit comprises an arrangement of PNP and NPN transistors connected across a DC supply of a voltage suitable for the fan blower. Alternative positive and negative cycles of the input waveform switch alternate halves of the commutating transistors so that at the output terminals (A1, A2) a square-wave voltage with the same frequency as the input waveform is available to drive the fan motor.
Patent DE-2530911-A1 (DE)
Title: Load carrying floor for tipper vehicles - has aluminium sections with plywood reinforcement carried beneath between flanges
Inventor: BIRKELAND MAGNUS
IPC: B62D33/02
Filed: 1975-07-10
Abstract: The floor is made up of aluminium section laying next to each other crossways to the longitudinal main body bearers. Each section consists of a 'U' shaped aluminium plank whose legs have in wards facing projections (6, 7) to support a preferably plywood (3) or other suitable laminated material reinforcement. One leg (4) is provided with an outwards facing lip (12) to engage with a corresponding groove (9) formed in the second leg (5) of its neighbouring plank. The second leg is formed as an outwards facing flange (10) suitably provided with bolt holes (14) to fix to the longitudinal bearers.
Patent DE-2533324-A1 (DE)
Title: Thermosetting tubes continuously and rapidly extruded - between two coaxial cylinders with upstream cooling and downstream heating
Inventor: FUKADA YOSHIHIKO
IPC: B29C48/09
Filed: 1975-07-25
Abstract: An extrusion mould for the continuous prod. of hollow articles, such as tubes, from thermosetting resins consists of coaxial inner and outer. cylinders. The material is extruded through the annular passage between them. In the upstream region, this passage can be cooled, while in the downstream region it can be heated. Pref. electrical heating wires are wound externally around the downstream end of the outer cylinder, while the internal cylinder contains a cooling jacket in the upstream region, and electrical heating wires in the downstream region. Pref. the external and internal cylinders both contain a cooling jacket upstream and a heating jacket downstream. The positive temp. control, by keeping the material cool initially during extrusion, prevents the temp. rise normally produced in extrusion and thus prevents premature setting, even at high extrusion speeds.
Patent DE-2533610-A1 (DE)
Inventor: PATTON JON RICHARD
IPC: B60K17/10
Filed: 1975-07-26
Abstract: An improvement in a control system, including a brake device, for a vehicle having a hydrostatic transmission which includes a hydrostatic pump and a hydrostatic motor. The hydraulic control circuit includes a control pump, a high pressure conduit, a low pressure conduit, differential pressure regulator valve means and a directional control valve means interposed in the high and low pressure conduits and a fixed orifice means interposed in the low pressure conduit upstream from the differential pressure regulator valve. The improvement takes the form of an adjustable orifice means interposed in a branch conduit, between the high and low pressure control conduits downstream from the fixed orifice means, with the adjustable orifice means permitting the adjustment of the pressure differential between the high and low pressure control conduits.
Patent DE-2534844-A1 (DE)
Title: Fresh cast floor or ceiling concrete treatment - recycles surplus water from concrete through slurry trap and pump
Inventor: CARLSSON ERIC
IPC: F04F3/00
Filed: 1975-08-05
Abstract: A process for treating freshly cast concrete in casting floors or ceilings, uses suction mats or panels, laid on the concrete surface, connected to a pump assembly. The superfluous water is sucked through a fluid pump (1) into a water storage tank (7), via a container (6) subjected to underpressure, which also traps slurry. The water tank is held under atmospheric pressure. When a predetermined level is exceeded, water flows away from it via an overflow. Sealing water needed for pump operation is sucked into the pump via another inlet from the water tank, and subsequently pumped into the tank, together with the water sucked from the concrete. Less water is needed, and continuous operation is practicable, with no need to stop the pump so that water can be emptied away.
Patent DE-2534889-A1 (DE)
Title: Optical signal amplifier with semiconductor injection laser - uses AC superimposed on excitation DC supplied to amplifier element
Inventor: RUSSER PETER DR
IPC: H01S5/062
Filed: 1975-08-05
Abstract: The amplifying element is energised above the laser threshold by direct current. An alternating current portion is superposed onto the amplifying element simultaneously with the supplied optical signal. The frequency of the alternating current is higher than that of the signal. The amplifier assembly contains a direct current source (Io) for biasing the injection laser lement (1) above the laser threshold, a pumping current source (Ip), a signal source (Is), and frequency switches (2, 2', 2") between the laser element, the current and the signal sources.
Patent DE-2536850-A1 (DE)
Title: Caller identification in private telephone system - has call signals followed by identifying frequency during fixed period, counted for numerical display
Inventor: KOCH HARRY ING GRAD
IPC: H04W88/02
Filed: 1975-08-19
Abstract: A personal telephone system is fitted with a receiver that enables the caller to be identified before the receiver is lifted to make the connection. The incoming signal is represented by two distinct periods, the initial one containing the frequency multiplexed dialling signal to identify the required subscriber and a second period containing frequency information relating to the caller. The high frequency amplifier (4) receives incoming signals (3) that are discriminated (5) and processed through a filtered amplifier (6) to identify a dialling tone signal (7) at the end of the first period. A gating circuit (19) allows all signals through during the second fixed interval period and these are converted (13) and decoded (17) to provide an identifying display (18).
Patent DE-2546124-A1 (DE)
Title: Combined calcining and cooling rotary kiln - for granular material e.g. cement clinker, has particle sprinkler elements in cooler section providing improved cooling
Inventor: SCHMID ALFRED DR ING
IPC: F27B7/36
Filed: 1975-10-15
Abstract: A cement clinker calcining and cooling plant of the known type is constructed as a single rotary tube having a furnace section heated by a burner and directly connected to a coaxially mounted cooler section in the outlet end of which an air stream is admitted serving both as cooling medium and as combustion air for the furnace section. The burner and its associated holer are fixed to the rotary tube in the furnace section, thereby leaving the interior of the cooling section free. Sprinkler inserts are provided in the cooler section free. Sprinkler inserts are provided heated over the whole cross section of the rotary tube. The improvement ensures that the sprinkler units can be installed in the cooler section to provide a complete curtain of particles through which the cooling air must flow. In the known 'Solo' furnaces of this type, such units cannot be installed because of excessive wear on the lance type burner used, while in their absence, a dead space is formed below the lance interesting with the cooling process.
Patent DE-2547960-A1 (DE)
Title: Timetable time display forelaspsed instruction period - using disc covered in stages by sector shaped vanes and with acoustic signal
IPC: G04B19/00
Filed: 1975-10-27
Abstract: The timetable time display is used to indicate the elapsed time of an instructional period, and is driven by pulses supplied from a central control clock. A display disc representing the instructional period is covered in stages by a number of sector shaped vanes, so that the amount of the disc which is visible represents the remaining instruction time. The central clock may supply control pulses to several such displays and an acoustic signal may be provided at the beginning and end of each instructional period.
Patent DE-2551072-A1 (DE)
Title: Differential for single axle agricultural machine - with selective brake for differential or for one wheel to aid turning at end of field
Inventor: SCHLOSSER GUENTHER
IPC: B62D11/10
Filed: 1975-11-13
Abstract: The differential for the single axled agricultural vehicle is fitted with a special brake sleeve by means of which the differential can be blocked, so that good traction is obtained for ploughing etc. In a second setting of the sleeve, one of the wheels is blocked, while the other wheel rotates, so that the machine is easily turned at the end of the field, without manual effort. The sleeve either couples the gear on the half shaft to the differential cage to block the differential, or couples it to a fixed gear rigidly connected to the differential housing, to block that half shaft. The half shaft block operates in both forward and reverse gears.
Patent DE-2558123-A1 (DE)
Title: Acid pickling of metals, esp. steel, in vacuum - which prevents hydrogen diffusion into the metal and agitates the pickling bath
Inventor: MOTNIK ALFRED
IPC: C23G1/02
Filed: 1975-12-23
Abstract: Pickling is carried out in a vacuum of up to 1 kg/cm2, so that on using H2SO4 for pickling metal, esp. steel, the bubbling effect due to the evolution of H2 is increased; the porous layer of scale on the metal is de-gassed; and the rapid de-gassing achieved by using a vacuum hinders the diffusion of H2 into the surface of the metal. The expansion of the gas bubbles is pref. employed to stir the pickling bath and thus maintain the activity of the bath; and the stirring effect is pref. increased by vacuum-boiling the bath. The exhaust vapours from the pickling bath are pref. compressed and employed for heating the bath. Picling times are reduced. Diffusion of H2 into the metal is prevented. Complex mechanical stirrers for the bath are eliminated. There is no need to move the work-pieces in the bath to improve agitation. The workshop air is not contaminated by fumes. Heat losses are reduced.
Patent DE-2600868-A1 (DE)
Title: Thermomagnetic transducer for heat to electric power conversion - has toroidal or solenoid (semi)conductor in permanent magnetic field
Inventor: HEYMANN ANDREAS
IPC: H01L37/00
Filed: 1976-01-12
Abstract: The annular or solenoid shape conductor, or semiconductor, is mounted in the magnetic field of one or several permanent magnets in such manner as to permit penetration of the magnetic field. The longidutinal sides of the conductor are preferably provided with heat exchanging elements. The magnetic field may be generated by axially magnetised toroidal magnets. Several such systems may be stacked together, or mounted next to each other to form a respective transducing apparatus. In order to increase the electric potential gradient the conductors may be electrically in series, or thermally in parallel. Alternately electromagnets may be used for generation of the magnetic field, possibly of superconductive type.
Patent DE-2603509-A1 (DE)
Title: Self-extinguishing polystyrene contg. brominated thiadazole - together with synergist, not affecting mechanical properties of moulded compsn.
Inventor: BENKER KLAUS ING GRAD
IPC: C08K5/46
Filed: 1976-01-30
Abstract: The thermoplastic moulding compsns. contain as flame-proofing agent a combination of na) a cpd. of formula (I): (where X and Y are -CBr3; in which n = 1-3; or -CHBr2) and (b) is not 1 synergist for (a). The compsn. contains a relatively small amt. of organic halogen cpd., and the softening point and mechanical properties of the polymer are not affected. The compsn. remains self-extinguishing after long periods at high temp., and shows less tendency to drip in the case of fire.
Patent DE-2606216-A1 (DE)
Title: Sock for long-distance skiing, walking or climbing - with gaiter attached to leg and projecting towards foot
Inventor: ROHRER HANSJOERG
IPC: A41B11/00
Filed: 1976-02-17
Abstract: Sock comprises a gaiter which projects freely towards the foot of the sock and which is continuously connected to the leg of the sock around its whole circumference. The gaiter may be made of the same materal as the leg and foot of the sock, or of a moisture-proof, moisture-repellent material, or it may have a moisture-proof, moisture-repellent coating. At one front of the free edge of the gaiter may be a hook for hooking into the lace of the boot to be worn with the sock. Also at the free edge of the gaiter may be a loop of elastic tape for pulling over the sole of the boot. The sock prevents moisture e.g. snow or foreign particles e.g. sand and stones from entering between the sock and the boot.
Patent DE-2616305-A1 (DE)
Title: Interchangeable mouth organ template - fits against mouthpiece to restrict available holes for tone effect control
Inventor: UYSAL BURHAN YILMAZ DIPL ING
IPC: G10D7/12
Filed: 1976-04-12
Abstract: The template is designed for a mouth organ in the form of a soft thin plate (P) with markings corresp. to each of the openings, which can be pierced at specific positions to ensure that the instrument plays only to a desired tone. A mouth cover (D) is pressed over the plate to hold the assembly, the cover having openings corresp. to all the mouth organ openings. A drawer (T) may be fitted under the instrument to hold a variety of different interchangeable templates.
Patent DE-2616967-A1 (DE)
Title: Continuous can top severing machine - has cylinder operated cutting blade and can positioning and removal system
Inventor: PFLUMM KARL
IPC: B67B7/70
Filed: 1976-04-17
Abstract: The machine for cutting off the ends of the cans has a roller conveyor along which the cans travel towards a sloping cutting head. A height adjustable sliding cutting blade is pushed towards the cans by a pneumatically or hydraulically operated piston and cylinder. The machine can be adapted so that the cans are pushed against a fixed blade. A manually operated cutting blade can be used. A further actuator cylinder can be incorporated to position the cans ready for cutting. A vibratory drive can be incorporated to remove the cut ends from the cans. A further cylinder can be incorporated to convey the opened cans onto a take off conveyor.
Patent DE-2617317-A1 (DE)
Title: Magnetically coupled suspension for self:compensating balances - has bar magnets suspended in coils stabilised by proportional integral controller
Inventor: GAST THEODOR PROF DR ING
IPC: G01G19/00
Filed: 1976-04-21
Abstract: The magnetically-coupled suspension for precision weighing instruments of the self-compensating type, consists of a bar marnet (2) suspended from the balance load arm (1), the lower part of the magnet being surrounded by a control winding (11). A second control winding surrounds the upper part of an evacuated vertical tube in which the specimen tray (4) is suspended from a second bar magnet (3). The vertical separation between the adjacent ends of the magnets is detected by a photo-electric system (6) (8). The detector output operates a proportional-integral controller (10) (13) whose output signals are fed to the upper and lower control windings respectively. Any vertical disturbing forces are counter-balanced by the superimposed control currents.
Patent DE-2617320-A1 (DE)
Title: Homogeneous phosphorus doping of silicon using thermal neutrons - calculating dosage using reactor-specific constant to increase accuracy
Inventor: SCHNOELLER MANFRED DIPL CHEM D
IPC: H01L21/261
Filed: 1976-04-21
Abstract: Prodn. of homogeneously P-doped Si crystals involves irradiation with thermal neutrons by the reaction 30Si (n,) the P doping level being determined by the prod. of the neutron flux density (PHI), irradiation time (t), a contant (d) depending on the effective neutron cross-section and the concn. (c) of 30Si in the starting material. To increase the accuracy in adjusting the doping, a reactor-specific effective corrected value (d') is used for the calculation of the neutron dosage, instead of the literature value for d. This value is dependent on the radiation position of the crystal in the reactor and hence on the proportion of effective neutrons in the neutron spectrum of the reactor. Used e.g. for doping a Si crystal with 3.50 x 1013 atoms P/cm3 (to give a resistivity of ca. 150 ohm-cm), with PHI =2 x 1013 neutrons/cm2-s, in a reactor for which d'=0.150 barn, it was found that t=125 min. Precise doping is possible for any reactor and any radiation position.