baber/WOPTO huggingface dataset:
Patent DE-2655824-A1 (DE)
Title: Prepn. of 4-hydroxy-anthrone and novel derivs. - from 2-halomethyl phenyl haloformate(s) and benzene cpds.
Inventor: PETRUCK GERD-MICHAEL DR
IPC: C07D313/12
Filed: 1976-12-09
Abstract: Prepn. of 4-hdyroxyanthrones of formula (I) below: (where R1-7 are H, OH, halogen, CN; 1-4C alkyl, alkoxy, alkylmercapto, alkylsulphonyl; CF3, CCl3, or -NR8R9; R8 and R9 are H, 1-4C alkyl, or (1-4C alkyl)carbonyl) c omprises reacting at 0-300 degrees C in the presence of a Friedel-Crafts catalyst and opt. a solvent, an o-halogenomethyl-phenylhalogenoformate of formula (II) above in which X' and X2 are each halogen, with a cpd. of formula (III) above. (I) are novel in which halogen in R1-7 is F, Cl or Br and R1-7 are otherwise as defined above provided 1 or R1-7 is other than H or methyl. (I) are intermediates in the prepn. of vat dyes. Process is simpler and gives higher yields than the known process from phthalic anhydride and phenol.
Patent DE-2702843-A1 (DE)
Title: Impact pulverising crusher slat - has longitudinal grooves with trumpet-shaped recesses for locking with lateral fixing plates on rotor
Inventor: WAHL HANS DR ING
IPC: B02C13/28
Filed: 1977-01-25
Abstract: The impact element for pulverising crushers is designed to allow an easy replacement of the slat even after prolonged operation of the crusher. The impact element has edges (10, 11, 12, 13) which during the operation are in continuous contact with the material to be pulverised. In its flat surfaces (14, 15) the element has grooves (16, 17) in rotor-axial direction with staggered axes, to enable adjustment of the element on the rotor. The grooves serve for radial fixing on the rotor. To achieve axial fixing on the rotor the elements are provided with trumpet-shaped recesses (18, 21). The edges of the recesses are parallel to the grooves with lateral parts (18, 19) encroaching on the groove width. These parts mesh with lateral plates (29, 30) on the rotor. The contact between the plates (29, 30) and the edges (31, 32, 33, 34) is only along short lines facilitating easy assembly and disassembly of the elements due to the absence of clogging by settled ground materials.
Patent DE-2704449-A1 (DE)
Title: Adjustable height support for clamping vice - has pneumatic actuator with cylinder and piston in support column
Inventor: JAGOB KARL
IPC: B25B1/22
Filed: 1977-02-03
Abstract: The adjustable height support table is used for a vice. The moving end of the piston rod rests on the bottom of the bottom of the sleeve projecting downwards. The support column (2) forms the cylinder of the pneumatic actuator. This cylinder is enclosed by a sleeve (13) below the clamp (3). The piston (19) in the cylinder moves so that gas is able to leak past the piston. A seal (18) and guide ring (17) are provided at bottom end of the cylinder for the piston rod.
Patent DE-2707869-A1 (DE)
Title: Personalised alarm system worn under clothing - has alarm transmitter carried on belt and capable of being triggered without being observed
Inventor: BROECKER KARL
IPC: G08B21/02
Filed: 1977-02-24
Abstract: A personalised alarm system is worn as part of the persons clothing and is capable of being triggered in an unobserved way. The trigger (2) unit may be mounted on the arm and is coupled by a wire (3) to the transmitter (1) and power supply. A suitable length of wire around the waist (5) serves as an aerial for transmission of signals when the alarm is triggered. As a first stage, the signals are transmitted to a receiver in a car and from the car the signals may be retransmitted to headquarters.
Patent DE-2708625-A1 (DE)
Title: Communications system with optical fibres electrical line wires - uses optical fibres for signal transmission and wire lines for current supply to subscribers
Inventor: UNTERBERGER HANS DR ING
IPC: H04M1/00
Filed: 1977-02-28
Abstract: The communications system uses optical fibres for sending communications signals and electric line wires for sending the signals needed for setting up and dismantling connections and also for transmitting current supply to the subscriber terminals. The electrical connection between subscribers and switching centre consists of two wires connected to the subscriber's bell, and via the cradle switch to the power supply terminals.
Patent DE-2715371-A1 (DE)
Title: Voltage regulator for AC load - uses thyristor control circuit with control pulse length dependent on voltage
Inventor: HABERMANN HANS O
IPC: H02M5/253
Filed: 1977-04-06
Abstract: A voltage regulator for an a.c. load with a semiconductor arrangement controlled by a control circuit is designed for economy of manufacture at reduced size with maintained control efficiency. The semiconductor arrangement is a thyristor connected in series with the input of an autotransformer. A control circuit maintains constant voltage at the auto-transformer input and the transformer output is applied to the load at a defined supply voltage level, e.g. the usual alternating supply voltage. The thyristor is driven with different length control pulses according to the auto-transformer input voltage level.
Patent DE-2722015-A1 (DE)
Title: Fixture for suspension on heavy vehicle - has sprung bellows and locating stub for leaf spring to prevent lateral roll on corners
IPC: B60G11/46
Filed: 1977-05-14
Abstract: The suspension for the heavy vehicle has transverse leaf springs with their ends fitted to the chassis on elastic bellows (3) for flexibility. The end plates (2) of the leaf springs (1) have angled stubs (8) which locate in open tubular mountings (9) on the chassis when the spring is depressed. The location of the stubs in the mountings provides lateral stability when the vehicle rolls, without affecting the damping effect of the bellows.
Patent DE-2726585-A1 (DE)
Title: Belt drive drum elastic covering - is of rubber or plastics and attached to drum using rivets and spring steel rail
Inventor: CASTENHAMMAR TOMMY
IPC: B65G39/07
Filed: 1977-06-13
Abstract: The covering for the drive drum of a belt conveyor is made from elastic material such as rubber or plastics. The first end of the covering in the direction of rotation (14) of the drive drum (1) is attached to a rail using rivets. The rail is attached to the drive drum by screws and is recessed into the covering consisting of spring steel. The rail is located about 20mm in front of the end of the covering, and the covering may be multi-layered, in which case the centrally positioned layers are reinforced by fabric inserts.
Patent DE-2731499-A1 (DE)
Title: Etching a semiconductor structure on silicon substrate - to leave a layer of polycrystalline silicon covered by silica insulation (NL 16.1.78)
Inventor: SUNAMI HIDEO
IPC: H01L21/3115
Filed: 1977-07-12
Abstract: Etching process, where (a) zone (Ia) contg. a high percentage of phosphorus is formed in the surface of a SiO2 layer (I) contg. at least one step; (b) (Ia) is removed while also reducing the thickness of (I). Zone pref. contains 1x1021 to 2x1022 atoms P/cm3, obtd. by diffusion or ion implantation; and (Ia) may be removed by wet- or dry-etching. (I) may contain P, esp. in a concn. ratio 1:1a between 0:1 and 1:2. Pref. a substrate is coated with (I), then a layer of polycrystalline Si (II) with high dopant concn. Heat is then used in an oxidising atmos. to obtain a thick layer of SiO2 (III) on (II) but only a thin layer of SiO2 (IIIa) on the bare part of the substrate. Phosphorus is diffused or implanted in (III) and (IIIa); and (IIIa) is removed while the thickness of (III) is reduced. The (II) is pref. 500 angstroms - 5mu m thick, and doped with P, As, B and/or Sb to concn. 1020-5x1021/cm3. (III) and (IIIa) is pref. obtd. by thermal oxidn., (III) being min. 3 times thicker than layer (IIIa). Used in the mfr. of Si semiconductor circuits, where (II) can be completely covered by (III) so no faulty insulation occurs.
Patent DE-2733412-A1 (DE)
Inventor: JACOBSEN RONALD LOWELL
IPC: C11D17/00
Filed: 1977-07-23
Abstract: Light duty, anionic detergent compositions containing a phosphorus surfactant detergency boosting ingredient which improves the removal of baked on and hard-to-remove soils from housewares, including pots and pans, dishes, glasses, utensils, etc. Process for washing dishes with said compositions. Process for the preparation of said compositions.
Patent DE-2734107-A1 (DE)
Title: Beta-azolyl-aldoxime carbamate derivs. - useful as insecticides, acaricides and nematocides and their aldoxime precursors
Inventor: STETTER JOERG DR
IPC: C07D521/00
Filed: 1977-07-28
Abstract: Aldoxime carbamates of formula (I) Az-CR1R2-CH=N.-OCONR3R4, their salts and metal complexes are new. In (I), R1 and R2 = alkyl or together complete an alkylene bridge. R3 = H or alkyl. R4 = H, alkyl, alkenyl, alkynyl, haloalkyl, haloalkenyl, alkoxyalkyl or alkylthioalkyl. Az = opt. substd. azolyl. Also new are the intermediates of formula Az-CR1R2.CH=N-OH (II). (II) are converted to (I) by reaction with R4NCO, R3R4NCOHal or MOCN (M = Na, K or NH4). (I) are insecticides, acaricides and nematocides more effective than cpds. of similar structure and with low toxicity to animals. They are useful in agricultural, forestry, protection of stored goods, and in hygienic applications. In an example, 2-(imidazol-1-yl)-2-methyl-1-methyl-carbamoyloximino-propane was made from CH3NCO and the corresp. 1-oximino-propane.
Patent DE-2738105-A1 (DE)
Title: Switching and control device for noise and rumble filters - has slide switch with filters and out positions and giving variable control of noise filter
Inventor: WONKA BORIS
IPC: H03H7/01
Filed: 1977-08-24
Abstract: The noise and rumble filter switch and control is for radio and audio equipment. The switch is a slide switch(3). In its first position neither the noise nor rumble filters are switched in. In the second position of the switch both filters are switched in. When the switch(3) is moved further to a third position, the rumble filter is switched in, and the noise filter is gradually switched off. An associated circuit includes a high-pass and a low-pass RC T network connected in series and across the base-emitter junction of an amplifying transistor.
Patent DE-2738544-A1 (DE)
Title: Disconnection of mains from overloaded overvoltage shunts - by separation of contacts in earth lead due to softening or melting material holding contacts together
Inventor: ALBRECHT GERHARD DIPL ING
IPC: H01C7/12
Filed: 1977-08-26
Abstract: The mains is disconnected from an overloaded over-voltage shunt by interrupting the earth connection when fault currents flowing in it exceed a given limit. Overloading is detected by the heat such currents generate in the earth conductor. A block of non-linear resistance material (1) is inserted between the ends of two sections (2, 3) of earth conductor. The ends and block are held together by an encapsulation of low melting point insulating material (4). When the temp. rises the insulating material softens or melts and breaks the connection between the earth conductor sections.
Patent DE-2739778-A1 (DE)
Title: Amplitude control in digitally controlled private telephone exchange - employs peak level threshold detector signalling when level exceeded
Inventor: HOWELLS GEORGE ANEURIN
IPC: H04M1/76
Filed: 1977-09-03
Abstract: A private automatic telephone exchange operates using pulse code modulation digital techniques and contains conversion interface circuits for connection to public telephone network operating in analogue mode. Amplitude level of analogue input is increased by signalling when a threshold level has been exceeded. In a private automatic telephone exchange speech from a subscriber is applied to an analogue to digital convertor. The analogue signals are also applied to a peak threshold level detector with feedback control signals from the convertor output. The feedback ensures that the convertor input is increased as required. Equipment at the subscriber extension receives level control signals to control the digital to analogue convertor for the receiver in response to the signals received at the exchange.
Patent DE-2745104-A1 (DE)
Title: Belt grinding procedure using deformable contact roller - levelling forging tool on unworked metal pieces for ring spanner box end wrench
Inventor: KALLENBACH JUERGEN
IPC: B24B9/00
Filed: 1977-10-07
Abstract: The belt grinding procedure is for levelling the forging tool on unworked metal pieces for ring spanner box end wrenches. The latter are taken up by a mounting and sliding installation and brought into contact with a flexibly-supported grinding band. The sliding movement is at right angles to the grinding belt's direction of movement. The grinding of the forging tool on an unfinished wrench is carried out in the region of grinding belt loop. The grinding pressure is provided by a deformable contact roller in the border zone.
Patent DE-2745806-A1 (DE)
Title: Gain control circuit for AC communications repeaters - has DC control signal applied to differential amplifier driving FET
Inventor: BUCHHOLZ WERNER DIPL ING
IPC: H04B3/10
Filed: 1977-10-12
Abstract: The gain control circuit controls the gain of an ac repeater amplifier in communications systems. An FET is connected by its gate to the output of a dc amplifier receiving the gain control signals. The FET source is connected to the control signal source via a resistor, the value of which is the same as that of the resistor in the feedback path of the repeater. The FET drain is connected via a third resistor to a voltage indicating the gain of the repeater.
Patent DE-2747787-A1 (DE)
Title: Multiple power supply checking unit - has logic circuit for indication and sequence control and uses comparator outputs as routing switch control
Inventor: SCHMIEDCHEN HARALD
IPC: G05F1/577
Filed: 1977-10-25
Abstract: The voltages are applied to regulator units and checked in comparator units. The comparator output is a unit signal indicating 'normal', 'high', or 'low', and operates a routing switch. This switch connects the unit value signals to the logic circuits. An AND-gate gives a signal if all voltages are normal. An OR-gate operates a switch to turn off the supply whose voltage is high. A diode circuit connected to earth indicates circuits with voltage low. An indicating circuit shows which supplies are on. A NAND-gate with an additional pulse input gives a feedback to the regulators and controls the sequence in which they are switched on, and it can also be made to control the switch off sequence when the equipment is shut down.
Patent DE-2748587-A1 (DE)
Title: Cigar and cigarette holder - has smoke transfer passage of decreasing section with adjustable fresh air intake
Inventor: HAELTERMAN JACQUES PAUL ANTOIN
IPC: A24F13/04
Filed: 1977-10-28
Abstract: The cigar and cigarette holder has a holder portion with a smoke inlet passage (2), an intermediate portion with a smoke intake passage from the chamber. A smoke transfer passage is connected to the inlet passage, the transfer passage section progressively decreasing towards the chamber. There is a fresh air intake (8) for the transfer passage (9) leading from the ambient air via an adjustable opening to the narrowest part of the passage. The transfer passage and fresh air intake can be formed between the contact surfaces of the holder portion and the intermediate portion.
Patent DE-2748917-A1 (DE)
Title: Forming fibrous cylindrical element - using endless belt formed into loop between two rollers and mandrel engaging web edge
Inventor: HEWINSON VINCENT KEITH
IPC: B29C53/56
Filed: 1977-11-02
Abstract: In forming a fibrous cylindrical element a predetermined length of web is rolled onto a support roll adjacent to four other rollers and the leading edge of the web placed in the belt loop. A mandrel e.g. made of a cardboard cylinder, is placed on the leading edge which together with the mandrel is engaged by the belt loop. One roller is motor driven to wind the web onto the mandrel and simultaneously a further roller is raised to increase the dia. of the loop. The linear speed of the belt and the rate of increase of the loop dia. are simultaneously controlled relative to the length and wt. per unit length of the web.
Patent DE-2757934-A1 (DE)
Title: Hot water supply system - has tanks interconnected with membrane pressure vessel and has pressureless tank with bladder and overfill preventer
Inventor: BROCKERHOFF HEINRICH ING GRAD
IPC: F24D19/10
Filed: 1977-12-24
Abstract: The hot water system has a boiler (1) with a safety valve (2), and connected to a storage tank (7) with a pump (9) in the return line. The supply line to the tank passes through a three way mixing valve (4) and is connected to the hot water distribution pipe (6) by another pump (5). A return line connects this pipe (6) to a membrane pressure vessel (3). The line to the storage tank has a branch incorporating a magnetic valve (10) for a pressureless tank (8) with a resilient storage bladder inside, contacted by a sensing arm to prevent over filling.
Patent DE-2802904-A1 (DE)
Title: Grain spacing adjuster for seed sowing machine - has cover rail or belt slidable over periphery of cell wheel to expose desired number of pockets
Inventor: KNOLLE WILHELM PROF DR ING DR
IPC: A01C7/04
Filed: 1978-01-24
Abstract: Themethod is for achieving a change in the spacing of the grain deposit on individual grain laying machines with 12, 24 or 36 cell openings on the cell whee. By adjusting a cover rail or a cover belt, either each cell opening or every second, every third or every fourth opening is released for filling and for depositing. A movable teel or plastics belt is laid around the cell ring circumference and this can be moved and fixed in the direction of the cell row. The belt has a row of holes or passages which according to adjustment, releases the outlet at all cells or every second, third or fourth cell.
Patent DE-2803508-A1 (DE)
Title: Handle for tubular frame door - has cranked part defining safety notch which receives thumb of user
Inventor: BRAUN-FELDWEG WILHELM PROF DR
IPC: E05B1/00
Filed: 1978-01-27
Abstract: The handle has a curved part for protecting the thumb of the user. The handle neck (1) projects outwards beyond the end of the square spindle (5). From this neck projects a cranked part (6) which forms a thumb receiving notch (11) between the handle neck and the handle grip (9). The thumb enters the notch for exerting contact pressure against crank continuation (8).
Patent DE-2816150-A1 (DE)
Title: Boring bar with replaceable cutter inserts - has diametrically opposed flat faces to support triangular insert bits secured by screw
Inventor: PETERS WOLFGANG ING GRAD
IPC: B23B51/04
Filed: 1978-04-14
Abstract: The boring tool consists of a tool holder in the end section of which two diametrically opposite, segment shaped grooves are machined. the grooves open up in the end face of the tool holder. Two cutter bit holders (2) are mounted in these grooves, and are secured in position by means of screws. The cutter bit holders are Z - shaped at the ends. the horizontal sections of the 'Z' fit against the end face of the toolholder. The contour at the end of the cutter bit holders is angled to match the angle of the triangular cutter bits.
Patent DE-2817064-A1 (DE)
Title: Fancy yarn mfr. - uses a chain stitch core to bond effect yarn ranging out in side loops held by the chain stitches
Inventor: QUATTROCOLO VITTORIO
IPC: D04B31/02
Filed: 1978-04-19
Abstract: In the contruction of a fancy yarn for use in woven or knitted fabrics, >=1 effect yarn is bonded with a core yarn. A line of chain stitches bonds the effect yarn to the core yarn, with the stitches passing through the core. Pref. the effect yarn is laid on the core yarn with side loops, with each connecting section passing through a chain stitch of the core, the loops being of the same or different widths along the length of the fancy yarn. The connecting sections of the loops are laid in successive chain stitches, or >=1 blank chain stitch is provided between the loops. The process gives a bonding between the effect yarn and the core yarn without requiring a special bonding yarn, so that a fancy yarn of almost unlimited length can be produced with one or more effect yarns in the same or unequal lengths.
Patent DE-2818203-A1 (DE)
Title: Thermal switching device with bimetal strip - has heater placed on bimetal strip, separated by insulating foil and held in position clip
Inventor: ZWILLING RUDOLF
IPC: H01H71/16
Filed: 1978-04-26
Abstract: The device uses a heater which consists of a resistor strip. One end of the heater strip is connected to the bimetal strip, while the other end of the heater strip is held by a clip on the bimetal strip. An insulating foil is placed between the heater and the bimetal strip. The clip (30) completely surrounds the heater (10) and the bimetal strip (14), and the ends of the clip are joined together.
Patent DE-2820812-A1 (DE)
Title: Fabric cladding pressure cylinder - has adjustable scrapers to determine operating cylinder width
Inventor: JURASCHEK RICHARD
IPC: D06B1/14
Filed: 1978-05-12
Abstract: The pressure cylinder to apply a stiffening plastic clading to fabrics of various shapes and dimensions, for making up into outer garments, uses a cylinder which is operated at high or low pressures. It rotates on a line parallel to, or at a light angle to, the line of the fabric advance mechanism. There are one or more blocking scrapers to limit the cylinder's operating surface along its axis. The unit has a high production capacity, giving a precise cladding to the fabric.
Patent DE-2823223-A1 (DE)
Title: Horizontal reaming machine with slide for reamer chuck - has screw-spindle to engage nut fixed in partially oil-filled slide
Inventor: TEUTEBERG HEINRICH
IPC: B23D37/02
Filed: 1978-05-27
Abstract: The reaming machine consists of a frame (1) with a bed with horizontal guide rods (2). A slide (3) is mounted on the guide rods. A screw spindle (13) is mounted between the guide rods and engages with a nut mounted in the slide. The nut is mounted in a boxed in section of the slide which is partly filled with oil. The nut, which is cylindrical in shape, has a cut-out in the top section. A felt ring is mounted in this cut-out which hangs in the oil in the box.
Patent DE-2823949-A1 (DE)
Title: Branching device for individual cable cores - has outer core which is shaped in tress, bent away and joined by metal sleeve to cable
IPC: H01R9/05
Filed: 1978-06-01
Abstract: The cable is used for railway signalling and has multilayer cores insulated from each other. The outer core (3) from which the insulation has been removed, is shaped into a tress (6) and bent sideways from the inner core (5). At least one end is joined by a compressed metal sleeve (9, 11) to an end (7, 12) of a stranded conductor (8, 13). The metal sleeve joins are embedded in an insulating block (19). The ress is built into a block by dip welding. The outer insulation (2) may be supported by a rubber or plastics sleeve.
Patent DE-2825369-A1 (DE)
Title: Travelling grate furnace - without clogging or thermal expansion problems, has a run extension at grate end roller to allow thermal movement
Inventor: KOELEN THEODORUS JOHANNES VAN
IPC: F27B21/06
Filed: 1978-06-09
Abstract: Furnace having upper and lower runs and end rollers for conducting the wheeled furnace wagons to and from the combustion zone includes an arrangement at the rollers which prevents clogging and hence consequential disruption to the thermal expansion of the runs. A respective bridging run piece mounted to the run extends over a respective roller between run and its extension to afford a track for a wagon wheel hub. The run and extension can then be spaced sufficiently to prevent clogging. Used in high temp. burning or sintering of ores. Trouble free thermal expansion of parts is provided.