baber/WOPTO huggingface dataset:
Patent DE-2835002-A1 (DE)
Title: Disposable typewriter ribbon tensioning mechanism - has lever actuated by control section braking against outermost spool coil
Inventor: PREIS RUEDIGER ING GRAD
IPC: B41J35/08
Filed: 1978-08-10
Abstract: Thetensioning mechanism is for a typewriter ribbon, which can be used once only. The ribbon is indexed from a storage spool onto a coiling one. The storage spool has a brake disc with which a spring-loaded lever is in frictional contact. The friction resistance can be adjusted according to the tension. A further lever (79) acts against a free end (29) of the brake lever, and pivots under the action of a control bearing against the outermost coil on the coiling (9) or storage (7) spool, so as to give even tension in the ribbon as it travels between the spools.
Patent DE-2836318-A1 (DE)
Title: Solar power plant assembly - has dome surface formed by plano-convex lenses, concave mirror with opening and second concave mirror and steam generator plant
IPC: F03G6/06
Filed: 1978-08-16
Abstract: The solar power installation comprises a dome whose wall consists of an array of plano-convex lenses. This dome concentrates the solar radiation onto a concave mirror with a central opening. The concave mirror further concentrates the radiation onto a second concave mirror in the centre of the dome surface. The radiation reflected by this mirror passes through the central opening to reach the steam generator which feeds a turbine. The solar power installation is simple to operate as the optical parts are all fixed.
Patent DE-2839267-A1 (DE)
Title: Excavator scoop for ground penetration - has short side prongs and longer front prongs
Inventor: MERKLE PAUL
IPC: E02F9/28
Filed: 1978-09-09
Abstract: The excavator scoop is designed to facilitate penetration of the ground. The scoop has prongs of additional length and also short prongs on sides. The length of the prongs is half of the dimension of the scoom front edge. Additional side prongs can be provided or alternatively plain side wall which ensures that prongs project well forward.
Patent DE-2839974-A1 (DE)
Title: Frameless picture holder with front and back plates - has special retaining clips allowing easy removal of cover without damage
Inventor: KOTTEK HANS
IPC: A47G1/06
Filed: 1978-09-14
Abstract: The picture is held between the cover plate (4) and the support plate (1) by retaining clips (5) which engage over the outer edges of the two plates. These clips (5) are mounted on the support (1) so that they can be displaced at right angles to the outer edge (2) and parallel to the plane (3) of the support plate (1) between a holding position in which the holding members (7) gip the cover plate (4) and a release position in which tese members lie completely outside of the outer edge of the cover plate. The holding clips need now be displaced only a short distance transversely and not longitudinally to the side edges so as to prevent any damage to the edges of the plates and picture insert.
Patent DE-2840239-A1 (DE)
Title: Feed control unit esp. for hay and straw - has two three=phase motors one of which is reversible and drives control disc under hopper
Inventor: HIRLINGER MATHIAS
IPC: H02K17/30
Filed: 1978-09-15
Abstract: The feed control unit is esp. for agricultural goods, esp. for hay or straw or corn, and comprises a motor driven blower with two three-phase motors, a main unit and an adjustment unit, driven by the same electrical power source. The adjustment motor unit (10) is mounted with a horizontal spindle (24) integral with a flat circular control plate (26) parallel with the wall of a feed channel (20). At the normally lower side of the plate is attached a weight (34) held by a clamping screw. The normally upper side of the plate has two arcuate closure flanges with a central space which has the same width as the lower end of a feed hopper (15). The control plate may be rotated in either direction.
Patent DE-2840395-A1 (DE)
Title: Floor for pig rearing structure - is made from cast plates with holes to suit size of feet of sows on piglets
Inventor: THYE-LOKENBERG HEINRICH
IPC: A01K1/015
Filed: 1978-09-16
Abstract: The floor consists of different elements for the sections housing the sows from the elements for the sections for the piglets. These element have openings to allow excrement etc. to pass through but shaped so as not to injure the feet of the different sizes of animal. One type of element contains slots and another type has round holes. The width of the slots is between 3 and 30 mm., and is about 24 mm in the compartments for sows, and between 6 and 9 mm in the compartments for piglets. The slots can have rounded ends. The elements can be cast plates of aluminium, iron, shaped to match the support members underneath.
Patent DE-2852423-A1 (DE)
Title: HV rectifier esp. for electro-filters - has varistors bridging pairs of controlled avalanche diodes
IPC: H01L25/11
Filed: 1978-12-04
Abstract: A h.v. rectifier is esp. for electro-filters requiring a driving d.c. voltage from 20 to 300 kV. It is protected against excess voltages which could lead to damage or destruction of the rectifier components. Resistors are switched in parallel to semiconductor valves connected in series. Each resistor bridges one or more semiconductor valves. The latter can consist of controlled avalanche diodes and the resistors of varistors. Each varistor can be switched over two diodes. The number of diodes can be selected so that the total of their rated voltages equals approx. twice the peak value of the h.v. to be rectified. The total of the threshold values of the linear regions of the varistors equals this peak value.
Patent DE-2853465-A1 (DE)
Title: Plug and socket assembly for furniture lighting - provides strain absorption by interlinked sockets and adaptors of different sizes with spring-loading and clip
Inventor: MEWS HANS-PETER
IPC: H01R27/02
Filed: 1978-12-11
Abstract: A plug and socket fitting for furniture or curtain lighting prevents the cable from being over-strained. It consists of a socket (2) with an adaptor (1) which can support another socket for smaller loads. This socket is standardised for a smaller plug. The assembly has a slotted path (7) for the cable which is formed by a plug-in unit in the adaptor (2). It is retained by spring loading. The bottom part of the plug unit is made with only one pair of socket holes for connection to the mains. The sockets and adaptors are coupled together as separate modules and held in position by meshing spring-loaded sections. The cable connections are secured by tension-absorption clips which seat in a projection on the housing.
Patent DE-2904426-A1 (DE)
Inventor: BODE HARALD E W
IPC: G10L19/02
Filed: 1979-02-06
Abstract: Described herein are analog speech encoder and decoder systems using a plurality of narrow band pass filters with associated rectifiers and ripple filters for spectrum analyzing the speech or other suitable signals, and a corresponding plurality of narrow band pass filters with associated voltage controlled amplifiers for remaking the speech with either an injected carrier or a noise signal being applied to the voltage controlled amplifier inputs, said carrier or noise source signals being selected by a voice controlled circuit, activating the carrier in the presence of voiced sounds or vowels, and the noise source in the presence of unvoiced sounds or consonants; said innovations or the combination thereof consisting of (1) the use of a direct bypass for the high speech frequencies from the voice input to the decoder output, using a high pass filter essentially passing the unvoiced speech sounds, (2) the limitation of the bandpass filter range of the encoder and decoder sections to the cut-off frequency of the high pass filter, (3) switching means to include voice controlled circuitry to activate the high frequency bypass only in the presence of unvoiced speech sounds, (4) switching means to include a noise source for the simulation of unvoiced sounds in the range of the band pass filters below the cut-off frequency of the aforesaid high pass filter, when activated by the voice controlled circuitry, and (5) the inclusion of an amplitude compressing circuit at the voice input and an amplitude expanding circuit at the decoder output for the purpose of increasing the signal-to-noise ratio of the speech encoder and decoder.
Patent DE-2912217-A1 (DE)
Title: Watertight tunnel tubular lining in earth fault stratum - has sections successively inserted, supported against ground and joined together
Inventor: BUCHMANN HEINZ ING GRAD
IPC: E21D11/00
Filed: 1979-03-28
Abstract: Tubular or annular units are successively inserted in a tunnel and joined together, during the construction of cladding for tunnels dug in undermined areas, or areas with earth faults. An initial tube section (4) is first introduced, and supported against the ground (2) over most of its periphery. An adjoining section (5) is moved up to the first centred and aligned, and joined on, and similarly supported on, or connected to, the earth. the process is repeated until completion A water-tight tubular lining, for the tunnel, is provided on a continuous basis, and sections without expansion elements can be used.
Patent DE-2913012-A1 (DE)
Title: Telephone line emergency call transmitter - is quickly and reliably operated using relatively few components, and uses separate switch to actuate call hunter
Inventor: SEELMANN-EGGEBERT GERHARD DR I
IPC: H04M11/04
Filed: 1979-03-31
Abstract: The system has a signal generator at the subscriber's telephone set. The signal generator is connected via a switch to the voice wires and its signals operate (via the wires) a switch at the telephone exchange. The exchange'sswitch initiates a separate cell hunter or second switch with the function of a call hunter to switch through the voice wires of the subscriber to further devices in the exchange or directly to the subscriber line of a receiving station. In the case of switch-through to the subscriber line of the receiving station, a rotary selector synchronised to the call hunter is located at the receiving station and its contacts are connected to an indicator showing the location of the incoming call.
Patent DE-2918405-A1 (DE)
Inventor: JOCKEL HEINZ DIPL ING
IPC: C01B3/22
Filed: 1979-05-08
Abstract: A process is described for producing carbon monoxide and hydrogen which comprises contacting methanol vapor at a temperature of 200 DEG to 500 DEG  C. with an indirectly heated zinc containing catalyst while said methanol vapor is at a pressure in a range of 2 to 50 bars, whereby to obtain an effluent gas in which the components of carbon monoxide and hydrogen constitute at least 90% by volume of said gas, removing at least a part of the impurities from said effluent gas and separating said effluent gas into its carbon monoxide and hydrogen components by adsorption. The effluent gas can be separated into its carbon monoxide and hydrogen components by use of a plurality of adsorbers containing zeolite-type molecular sieve material where the zeolite is substantially permeable to hydrogen but sorbs carbon monoxide.
Patent DE-2919786-A1 (DE)
Inventor: BLASCHKE FELIX DIPL ING DR
IPC: G06G7/22
Filed: 1979-05-16
Abstract: For forming   <IMAGE>   in a pulse width multiplier, two input voltages bi are summed at the input of an inverter and are added, after each passes through a separate switch and proportional stage, at the input of a smoothing stage, to the inverter output signal. The switches are actuated by switching pulses which are width-modulated in accordance with the factors ci. The calculated sum is present at the output of the smoothing stage. Great accuracy in field-oriented control of rotating-field machines is possible when vector analyzers and vector rotators designed in this manner are used.
Patent DE-2923544-A1 (DE)
Title: Tube with fibre-reinforced polyamide layers - has steel envelope drawn and bonded by epoxy! accelerator to polyamide
Inventor: VAHLBRAUK KARL HEINZ
IPC: B29C48/21
Filed: 1979-06-09
Abstract: A flexible intermediate layer in a laminated tube is less hard than the inner synthetic tube around which the other layers are bonded. The tube consists of three layers at least and is intended as a drain in civil engineering work. The intermediate layer is of thermoplastic material to which an adhesion accelerator has been added and it is applied to the inner tube by co-extrusion. An outer tube enveloping the intermediate layer at some little distance from it, is formed by rolling a strip of metal so that the edges butt together and a longitudinal welded seam is formed. After welding the tube is drawn through dies so that its dia. is reduced continuously, and the heat generated during shrinkage acting on the intermediate layer, bonds it to the outer tube. Used to produce a bonded pipe for drainage purposes, fully capable of standing up to the corrosive fluids which are commonly present. There is a close and inseparable bond between the intermediate layer and the inner tube and esp. between the intermediate layer and the metal tube.
Patent DE-2924207-A1 (DE)
Title: Mains powered alarm and controller - has battery circuit producing distinguishable, audible warning of mains power failure
Inventor: GREISINGER ELISABETH
IPC: G08B29/18
Filed: 1979-06-15
Abstract: The warning and control device with a mains power supply is applicable to individual or confined to oil, water, fire, and/or intruder alarm systems etc. and has a battery powered mains failure detection and alarm section. The mains failure circuit is incorporated without use of an additional housing or circuit board etc. The mains failure circuit, battery, and switch can be mounted in a plug housing, a housing with a connecting cable and plug, or in the housings of external sensors forming part of the alarm system. When a mains supply failure occurs, the circuit battery is switched in and an intermittent acoustic alarm given which is distinguishable from a continuous sensor alarm.
Patent DE-2944673-A1 (DE)
Title: TV receiver chassis with folding hinges - has rear wall of set attached to support with fixing brackets projecting from frame
Inventor: KOEGEL ARTHUR
IPC: H04N5/655
Filed: 1979-11-06
Abstract: The chassis for a television receiver which can be folded backwards around an axis. It consists of a frame with fitted printed circuit boards. The frame can be fixed in the vertical position and is fitted with a back wall for the instrument. The back wall is fitted with supports and fixing brackets near the top corners. They are in the form of projections (7,8) and act as a stop. It has cutouts or threaded holes for fixing the back wall of the television receiver.
Patent DE-2948662-A1 (DE)
Title: Tension equaliser for plastics foil dispenser - has two deflection rollers on frame, with tension controller coupled to drive motor
Inventor: WIELIGMANN FRIEDRICH ING GRAD
IPC: B65H23/182
Filed: 1979-12-04
Abstract: The device has a frame (14) connected via a chain drive (19) to a tension controller (20). The lower retaining post of the holder (3) is connected via a chain drive (7) to a drive motor (8). The tension controller and the drive motor are connected together via a line (24). The roll of foil is held between two retaining posts of the holder. The holder is attached to the frame. The frame supports two deflection rollers.
Patent DE-2951817-A1 (DE)
Title: Feeding liquids to mixer free from occluded air - by recirculating from mixer to just beneath level in tank
Inventor: REFFELMANN GERD ING GRAD
IPC: B01J4/00
Filed: 1979-12-21
Abstract: Homogeneous or foamed materials are produced from at least two liq. reagents fed to a mixer and released after mixing, at least one reagent being recirculated into its supply tank just below the level of liquid there but at a significant distance from the outlet. Polyol is stored in a tank (1) whose outlet (5) is in the base (4) from which it flows via a dosing pump (7) to the mixing head (8). Another pipe leads back from the mixer (8) to the tank (1). A flexible tube (12) is of length equal to the max. depth in the tank (1) and its top end (13) is fixed to a float(14). This float (14) moves on a vertical guide (15). The recirculated polyol reagent thus returns to its tank without contact with air and at max. distance from the outlet (5). System prevents occlusion of air into reagents.
Patent DE-2953035-A1 (DE)
Title: Magnetic field stabilising circuit - employs YIG probe operating in conjunction with FM microwave oscillator to produce compensating excitation
Inventor: CASPERS FRIEDHELM DIPL ING
IPC: G05F7/00
Filed: 1979-01-24
Abstract: For high accuracy measurement and stabilisation of magnetic fields it is normal to employ a nuclear magnetic resonance probe. This however has the disadvantage of large size. Hall probes may also be employed but these are temperature sensitive and also of lower accuracy. It is proposed to employ an Yttrium-Iron-Garnet probe which overcomes these shortcomings. Its resonant frequency is used to detect the field strength. A frequency stable microwave oscillator (1) is connected to the probe (5). It has a fixed mid-band frequency and is frequency modulated about the midpoint, by a low frequency oscillator (9), at about 1kHz. The probe output is detected (6) and the resultant signal applied to the measuring input (7b) of a phase sensitive rectifier (7) whose reference input (7a) is the LF oscillator output. The amplified (8) error signal is used to vary the excitation current in a control coil (4) on the magnet pole.
Patent DE-3005490-A1 (DE)
Title: Rapid coupling hydraulic line - has adjustable springs for sequential operation
Inventor: STEUERWALD ALFRED
IPC: F16L37/23
Filed: 1980-02-14
Abstract: The hydraulic line rapid coupling has spring loaded valves (10,27) in the end of each line and with a cylindrical coupling sleeve secured over one valve, and with the other valve inserted into the other end of the sleeve. The sleeve has a spring loaded mounting and as the other valve is inserted it controls the sequential opening of the two valves. The amount each valve opens is limited by stops (13,29) inside each valve mounting, and axially adjustable. The one valve mounting is held inside the hose fitting by a separate spring (34) to allow the sequential operation and ensure a rapid coupling without loss of fluid.
Patent DE-3007940-A1 (DE)
Title: Di:amino:di:phenyl:methane prepn. from aniline and formaldehyde - by condensing in presence of hydroxy:ethane sulphonic acid catalyst recovered by water extraction
Inventor: BRADER JUN WALTER HOWE
Filed: 1980-03-01
Abstract: Prepn. of diaminodiphenylmethane and higher homologues comprises condensing aniline and HCHO in the presence of a hydroxyethane sulphonic acid catalyst pref. in amt. of 10-70, esp. 20-40 mole % (based on moles of aniline) and recovering the catalyst by extraction of the salt with water. The products may be used in forming the corresponding polyisocyanates or as epoxy curing agents. The catalysts salts are much more soluble than the corresponding aniline salt of methane sulphonic acid, resulting in reduced salids build-up.
Patent DE-3010288-A1 (DE)
Title: Automatic control valve for central heating radiator - has thermostat controlling electromagnetic coil initiating valve closure
Inventor: DELECATE HEIKO
IPC: G05D23/275
Filed: 1980-03-18
Abstract: The valve incorporates a thermostat set to the max. room temp. and an electromagnetic coil energised upon the max. temp. being reached to block the warm water circulation. The coil causes a conical valve closure element to be moved into the blocking position against a bias spring. This normally holds the closure element in the open position with an integral stop plate abutting the inside face of the cover for the valve housing. Pref. the thermostat uses a bimetallic element and the current is fed to the electromagnetic coil via copper slip rings coupled to the supply line and slip ring contacts connected to respective ends of the coil. The valve is used for improving the economy of a central heating system.
Patent DE-3013840-A1 (DE)
Title: Foil band winding installation - has reversing roller placed in turnable position in front of winding roller made as wobble roller
Inventor: HEIDENREICH EDMUND
IPC: B65H23/02
Filed: 1980-04-10
Abstract: The band winding installation is for small foil bands with a reversing roller having a turnable bearing being positioned in front of the winding roller. The reversing roller (1) is made as a wobble roller, the turning axis (5) of which forms an angle with the roller axis. The wobble roller is made in a cylindrical shape and the turning axis (5) and the roller axis lie in a common plane. The wobble roller (1) is made axially adjustable. The two axle stubs (9,10) supporting the ends of the roller (1) are arranged in line on the axis (5).
Patent DE-3018905-A1 (DE)
Inventor: WIDMER MAX
IPC: B62D53/12
Filed: 1980-05-16
Abstract: The device for monitoring the operating state of a fifth-wheel coupling tests its coupling state with respect to predetermined positions of the individual parts (10-13) of a locking device by means of a first switch (2) which can be for example a proximity switch. By means of its arrangement, a single switch (20) can monitor all the important parts (10-13) of the locking device. In addition, the device can monitor the level of the kingpin (3) with respect to the coupling after coupling-in by means of a second switch (22) so that it is ensured that the kingpin (3) does not come to rest above the claw (7) of the coupling. By means of the device, the mode of operation of the coupling can be monitored before and during travelling, for example by means of visual or acoustic means in the driver's cab. This permits worn-out or damaged parts (10-13) to be detected early and to be replaced. <IMAGE>
Patent DE-3022555-A1 (DE)
Title: Two chamber teat cup for milking machine - has transparent forked connector incorporating relief valve fitted into bottom of double sleeve
Inventor: HAPPEL FRITZ
IPC: A01J5/08
Filed: 1980-06-16
Abstract: The teat cup has an inner sleeve (3) enclosing the teat (4), which fits over an outer sleeve (1) which has a branch connection (2) for connection to a suction source. Inside the bottom fits a transparent insert (6) with a neck over which fits the milk discharge tube (18). The top of the insert has two arms (7) spaced to form a fork. These arms are roughly oval in section, allowing the inner sleeve to be compressed to give a massaging action of the teat during part of the cycle. Around the top of the two arms is a rim (10,11) over which the inner sleeve is stretched. In one of these arms is a channel (8) with a horizontal side outlet (9) at the level of the rim. This acts as a valve, and its bottom opening is protected by a lip (19). Alternative designs of valve can be used. Another design is incorporated half-way up the inner sleeve. A collector can be fitted, which incorporates a check valve which eliminates surges.
Patent DE-3030629-A1 (DE)
Title: Electronic dice with optical indicator - has clock pulse generator transmitting HF clock pulse signal during bouncing to multiply bounce number in cooperation with inertial switch
Inventor: KLEEMANN KARL HEINZ ING GRAD
IPC: A63F9/04
Filed: 1980-08-13
Abstract: The elements of the throw result display are switched on in dependence on the state of a counter. The latter receives a clock pulse signal from a clock pulse generator when a switch is actuated. The clock pulse generator transmits a high frequency signal during the bouncing period, by which the number of bounces is multiplied by impact actuated switch in dependence on the actual bouncing period. The impact switch is fitted in the dice housing. Simultaneously the impact changes the state of the counter, the corresponding display elements are switched-on via a timing member. Pref. a flip-flop, forming a bistable multivibrator is incorporated between the display elements and the timing member. The latter may be formed by a monostable multivibrator. Alternately, it may be in the form of a counter energised by a low frequency clock pulse generator. The display elements may be switched-on as long as the counter receives clock pulse signals.