baber/WOPTO huggingface dataset:
Patent DE-2825299-A1 (DE)
Title: Doping of binary or pseudo-binary semiconductors - is carried out using dopant alloy contg. semiconductor constituent, and having compsn. which determines concn. of dopant atoms obtd.
Inventor: MAIER HORST DIPL PHYS DR
IPC: C30B31/06
Filed: 1978-06-09
Abstract: The semiconductor crystal is placed in an evacuated ampoule together with a dopant, and heated to the diffusion temp. The dopant consists of an alloy contg. >=1 element present in the crystal. The crystal and the dopant are held at the same temp. during the diffusion; and the compsn. of the dopant at the diffusion temp. determines the concn. of the dopant atmos. obtd. in the semiconductor. The pref. semiconductor crystal is mercury cadmium telluride, Hg1-yCdyTe; whereas the dopant pref. contains mercury and is esp. an alloy of Hg and Cd, partic. HgaCdb in which the ratio a/b is between 0.3 and 2. The diffusion temp. is pref. between 200 degrees C and 350 degrees C. A simple and reproducible process for mfg. homogeneous crystals with low dopant concn. Useful in mfr. of infrared detectors.
Patent DE-2831511-A1 (DE)
Title: Coke oven charging hole closure - using seal ring of absorbent heat resistant material
Inventor: HERRMANN ERNST
IPC: C10B25/24
Filed: 1978-07-18
Abstract: A charging hole cover for coke ovens has a downward tapering periphery which fits into a similar tapering surface of the charging hole frame in the oven chamber ceiling. A seal ring which is caulked into a dovetail groove of the cover consists of heat-resistant elastic material such as ceramic fibre cord, bound with copper wire and absorbant for tar and other gas components. This ensures a reliable gastight closure of the charging hole over long operating periods. No other requisites or sealing compound need to applied and incrustations do not interfere with its function.
Patent DE-2833761-A1 (DE)
Inventor: BRUNNER HEINRICH DIPL ING
IPC: G08G1/097
Filed: 1978-08-01
Abstract: A circuit arrangement for monitoring the state of signal systems, particularly traffic light systems monitors different signal states as to the admissability or inadmissibility thereof in a simple manner without the necessity of carrying out manual wiring manipulations given a change of the signal conditions in adaptation to changed conditions or given an expansion of the signal system to be monitored. For this purpose, test signals which indicate test signal states are fixed in a memory and are processed with the signals indicating the respectively existing actual signal state of the signal transmitters in at least one microprocessor in such a manner that each signal indicating an actual state is compared with all test signals which are called up step-by-step in succession from the memory.
Patent DE-2841518-A1 (DE)
Title: Flash control for single frame cine photography - inhibits exposure sequence until flash circuit is ready for firing
Inventor: WESSNER HARALD ING
IPC: G03B15/03
Filed: 1978-09-23
Abstract: The cine camera with flash exposure has a programmed cycle time between exposures and a fail-safe control circuit for the flash gun. This monitors the ready state of the flash circuit and if required, inhibits the exposure until the flash is ready. The system uses simple comparator circuits and pulse generators. It ensures that elapsed sequence shots can be taken with sufficient illumination for each frame.
Patent DE-2844672-A1 (DE)
Title: Totally enclosed casing for electronic equipment - has heat exchange surfaces acting between internal and external forced air counter-flow paths
Inventor: SEEWANG GEORG PROF
IPC: H05K7/20
Filed: 1978-10-13
Abstract: The cooling system is divided into two circuits. Internally air is forced past the heat generating circuit components by an internal fan. This air returns to the fan via inside surfaces of a heat exchanger. The external cooling circuit fan draws air over the outside of the heat exchanger surfaces thereby removing the heat. The external air flow is counter to that of the internal flow, and is not recirculated. The upper parts of the enclosure can be provided with removable covers to allow access for servicing after withdrawing the rack. The electronic equipment and its cooling system are horizontal, and parallel to the equipment front plate of a rack mounted unit.
Patent DE-2844921-A1 (DE)
Inventor: FINK ALBERT
IPC: E04F13/12
Filed: 1978-10-14
Abstract: 1. Mounting arrangement consisting of a supporting understructure and of partly overlapping facing (weather) boards fixed thereon, wherein a series of facing boards is arranged in vertical columns thus forming lapped joints with the boards above and below, wherein the columns are each continuously staggered with respect to one another by an amount given by half the difference between the height of the facing boards and the overlap within the columns, wherein the facing boards of neighboring columns partly overlap one another horizontally, with each facing board being introduced between the respective two adjoining facing boards of the neighboring columns, wherein vertical supports are used as a supporting understructure, which are arranged at a spaced relation resulting from the difference between the width of the facing boards and the lateral overlap of the neighboring columns, and wherein the facing boards, within all those areas in which one vertical edge of one facing boards meets upon a lower edge of another facing board, are secured to the supports with the aid of hooks which themselves are rotatable, but retained undetachably on the supports, characterized in that said supports (40) are provided with receiving openings (52) of drop-shaped cross-section whose longitudinal center line axes (53) extend vertically in relation to the longitudinal axis of said support, and that said hooks (70) are provided with hold fingers (72) which are in such a way adapted with their transition members (79) that said hook (70) with its hold finger (72) is capable of being introduced vertically in relation to the longitudinal axis of said support into a receiving opening (52), and of being undetachably locked in said receiving opening (52) of said support (40) by being turned by 90 degrees, parallel in relation to the longitudinal axis of said support.
Patent DE-2846836-A1 (DE)
Title: HV conductor support insulator - has main open channel on top-side with auxiliary channel on under-side for adjoining cable
Inventor: KARL GEORG
IPC: H01B17/22
Filed: 1978-10-27
Abstract: The supporting isolator has, on the top an open main channel for the detachable conductor cable and on the under-side, an auxiliary channel, closed, to take up an adjoining cable. The upper (7), under (8) and side (9, 10) surfaces, which define the channel (3), have, on the outer perimeter, a straight, semi-rounded configuration which extends over the whole channel length from the centre axis of the isolator. The upper (7) and under, straight surfaces widen out to some degree from the central axis of the isolator (6). The widened out section is defined by sideways-running straight, expanded surfaces (9, 10). The expansion processes used in the mfr. of the channel (3) on a moulding body, are low cost. A work-piece, i.e. an cylindrical milling machine, by rotation and forwards movement, penetrates the head section of the isolator and by a swinging movement or the milling machine sideways, left and right, and upwards and downwards, is used to form the outer sections of the channel, defined by the surfaces.
Patent DE-2848294-A1 (DE)
Title: Optical filter for controlling light level
Inventor: WISBEY PHILIP HENRY
IPC: G02B1/11
Filed: 1978-11-07
Abstract: An optical filter is esp. for neutral attenuating arrangements for controlling the light level in optical systems. A number of absorbing layers is mounted on a transparent substrate. Layers of dielectrical material are interposed. The absorbing layers can be arranged so that their thickness and/or density progressively increase towards the substrate. In another arrangement, they at first follow this pattern but then increase again in steps in the other side of the substrate to produce relative low reflectivity from both sides of the filter element. The thickness of the dielectric material, on the other hand, remains constant.
Patent DE-2903933-A1 (DE)
Title: Open-ended horizontal cylinder lamp shade - has lamp holder inside, plugging into socket outside, using insulated pins with locking action
Inventor: HEIMO ERNEST DR
IPC: F21V23/06
Filed: 1979-02-02
Abstract: The lamp shade for an overhead electric light is a horizontal cylinder (1) open at both ends, made from a sheet (2) of material bent round with its edges overlapping. A socket (8) for a bulb (16) inside plugs into a holder (7) outside at the overlap, half way between the ends. The socket has pins (6) protruding upwards, passing through the overlap (3, 4) fitting into sleeves (9) inside the holder. The pins and sleeves are shaped to interlock, and the pins carry an insulating layer where they pass through the holes through the overlap. Rings (14) having a U-section are fitted over the open ends of the cylinder, to give a rounded finish to exposed edges. The rings are pref. made of thin flexible metal.
Patent DE-2904951-A1 (DE)
Title: Identification and elimination of defects in slabs - by pin-pointing co-ordinates at which defects occur and retaining slabs for defect removal or scrapping the slabs
Inventor: KARLSSON PER-OLLE
IPC: G01N27/90
Filed: 1979-02-07
Abstract: The determination and subsequent elimination of defects in metallic slabs involves dividing at least the upper and the lower surface of the slabs into domains be a two-dimensional coordinate system and fixing the maximum depth of the defects for each domain of the plane of the co-ordinates using a fault finding device. The co-ordinate are stored in a suitable memory which can be accessed by treatment installations to eliminate the defects using the co-ordinates by heat-treatment, straightening, machining, planing and/or other treatment with removal of swarf. The co-ordinates relating to the location of the defects are stored in a computer with a number or code for the slabs, with an indication of slab dimension and/or their weight before commencing the step of finding and eliminating the defects. The slab co-ordinates are stored are used for the necessary treatment or an elimination of part of the slab of the rejection of an entire slab as scrap which slabs, separated partially or completely for scrap, are replaced by new slabs, the operations taking account of the selected rolling programe.
Patent DE-2910642-A1 (DE)
Title: Circular blank cutter unit - has centering shaft with contact end rotatable in casing and cutting blade on adjustable arm
Inventor: IHATA SACHIKO
IPC: B26F1/38
Filed: 1979-03-17
Abstract: For use the casing (12) is placed on the material (200) to be cut with centering shaft (102) withdrawn after tightening nut (42) has been slackedned. When casing (12) has been positioned, centering shaft (102) is pushed down until pad (118) fitted in recess of contact disc (106) rests against the material and nut (42) is tightened. Across the body (12) an arm (18) slides in an opening (34) provided in the rim (22) of the casing. The sliding arm (18) has a scale engraved on its side working together with a reference points on the casing (12). The arm (18) becomes slidable when nut (58) is slackened. After the required radius is set on the scale and penetration depth of the cutting edge (66) into the material (20) is adjusted nut (58) is tightened and the cutting operation is carried out using the rim surface (22) as a grip.
Patent DE-2911795-A1 (DE)
Title: Digital attenuation system for telephone network - samples analogue signals and converts them to PCM code word according to required attenuation
Inventor: ERDEL KARLHEINZ DIPL ING
IPC: H04B14/04
Filed: 1979-03-26
Abstract: The system has the sampled values of an analogue signal processed according to a 13 or 15 segment coding characteristic and convered into a PCM code word. This is converted into a second PCM code word according to the required attenuation, with subsequent reconversion back to the signal values which lie within the middle of each processing interval. The first PCM code word is converted into the second PCM code word via a read only memory, or a programmable read only memory. The system can be used for echo suppression in a digital telephone system.
Patent DE-2918375-A1 (DE)
Title: Low temp. solar collector - uses flexible concrete pipe with corrugations causing turbulence of water to increase heat transfer
Inventor: THUEMLER MANFRED
IPC: F24S10/70
Filed: 1979-05-07
Abstract: The collector has a pipe loop formed by a flexible concrete pipe of a corrugated shape, sandwiched between glass fibre and bitumen plates. The glass fibre plate is held in position by a plastics profile or a wood lathe. When water is passed through the pipe loop the corrugations around its inside surface cause turbulence which causes the heat transfer from the sun's radiation to be increased. The solar collector has a good efficiency and is low-priced relative to a collector using copper piping.
Patent DE-2918382-A1 (DE)
Title: Pipeline section laying tackle - has parallel supports with arms bearing against section and thrusters for lengthwise movement
Inventor: LAMANN BERNHARD
IPC: F16L1/036
Filed: 1979-05-08
Abstract: The pipeline section laying equipment comprises tackle suspended from a crane etc. It is designed to accommodate the section in the horizontal position. It comprises two parallel supports spaced apart sufficiently to accommodate the pipe section. Each of the two supports is equipped with a supporting arm brought to bear against the section by a drive mechanism, also with a thrust member acting against the section end face, so as to slide it in the lengthwise direction.
Patent DE-2922071-A1 (DE)
Title: Full duplex two=wire transmission unit circuit - has two bandpass filters whose centre frequencies can be switched by control criterion between carriers
Inventor: FIUMANI FRANCESCO DIPL ING
IPC: H04L5/14
Filed: 1979-05-30
Abstract: The transmission unit, esp. modern, operates in two different frequency channels in the speech band. It has a modulator, a demodulator, two band-pass filters, each tuned to the corresponding channel carrier frequency, and a hybrid circuit connected to both filters and to the line. The two band-pass filters (F1, F2) are structurally similar to each other, and their centre frequencies can be switched by a control criterion between the carrier frequencies of the two channels. One filter (F1) is directly connected to the modulator (M), while the other filter (F2) is permanently connected to the domodulator (D) input.
Patent DE-2922426-A1 (DE)
Title: Fuel injection pump for diesel engine - has two control grooves in plunger linked by groove in cylinder for two=stage injection
Inventor: AUGUSTIN ULRICH DIPL ING
IPC: F02M45/06
Filed: 1979-06-01
Abstract: The pump has a plunger (3) reciprocating in a cylinder liner (2). A longitudinal groove (12) in the plunger communicates with a circumferential groove (10) whose upper surface is inclined. Pumping ceases when this surface uncovers a port (5) in the liner, and the timing is adjusted by rotation of the plunger. A second groove (11) in the plunger runs circumferentially round it above the first one and has straight sides. The second groove passes over a longitudinal groove (15) in the liner which puts it into communication with the first groove and thus with the relief port (5). This enables a two-stage injection to take place at a short stroke.
Patent DE-2927432-A1 (DE)
Title: Photo-acoustic spectrometer for solid and liq. samples - has connected gas-filled reference and sample chambers
Inventor: WATANABE ATSUO DIPL ING
IPC: G01N21/17
Filed: 1979-07-06
Abstract: A photoacoustic spectrometer has a light source emitting a beam in a defined spectral range which is periodically interrupted. The samples are contained in solid or liquid form in a gas-filled chamber (11) with light transmitting windows (4). Periodic pressure variations in the chamber are converted into electrical signals. It is a relatively simply constructed and is operated by a spectrometer enabling examination of all types of fluid and solid samples, e.g. emulsions, granular material, dust, coatings or solid objects and living organisms. A reference chamber is connected to the sample chamber by a channel containing a flow transducer.
Patent DE-2929350-A1 (DE)
Inventor: FIERGOLLA ULRICH DIPL ING
IPC: E04B7/20
Filed: 1979-07-20
Abstract: PCT No. PCT/DE80/00104 Sec. 371 Date Mar. 5, 1981 Sec. 102(e) Date Mar. 5, 1981 PCT Filed Jul. 18, 1980 PCT Pub. No. WO81/00272 PCT Pub. Date Feb. 5, 1981.A prefabricated ceiling element for ceilings in buildings comprises a concrete ceiling panel (1, 1', 1'') and a steel girder (2, 2', 2'') having a T-section, the web of which has tips (2c, 2c') which are anchored in the concrete ceiling panel (1, 1', 1''). Free cutouts (2d) are located between the tips. The steel girder (2, 2', 2'') extends only over the midportion of the ceiling panel (1, 1', 1''), so that at the ends of the panel support areas and installation lanes (4) remain freely accessible.
Patent DE-2932195-A1 (DE)
Title: Oil well blowout control - by large cylinder sunk in sea-bed around well for oil extraction
Inventor: HOFMANN HANS
IPC: E21B43/01
Filed: 1979-08-08
Abstract: Blow-outs of oil wells, specially of offshore wells, are sealed off by a large cylinder, open at both ends, and with cutting edges at the bottom. An annular ram is reciprocated to drive the cutting edge in the sea bed. Connections on several levels permit pumps to extract the ejected oil until the pressure is reduced enough to close the top of the cylinder. This is a less risky method than the explosive method. It saves time and money compared with the method of drilling a relief hole for a blow-out.
Patent DE-2937924-A1 (DE)
Title: Mounting for component board inside telephone instrument - assists in limiting undesirable distorting stresses in board when attached to base
Inventor: GEESE ALBERT
IPC: H04M1/02
Filed: 1979-09-19
Abstract: The mounting may be for a preset bell assembly inside the telephone instrument case. The bell assembly is built up on a board (5). At its fixing points the board has holes (6), for screws (9), which are surrounded on both sides by a convex rim (7,8). The telephone base (1), typically an injection moulding, has bosses (2) with tapped holes (4) for the fixing screws (9). These bosses are at an angle to the vertical to facilitate the moulding operation. When the board and base are assembled, the screw head bears on one side (10) of the upper rim (7) whilst a diametrically opposite point (11) on the lower rim (8) bears on the top of the boss (2). This feature gives free clamping of the board (5), and thus will not cause any movement in the bell assembly after the latter has been set up and locked.
Patent DE-2942509-A1 (DE)
Title: Laying industrial building floor finish - involves stretching parallel long thin cables along level lengthways, then cross-ways
Inventor: LIND GUENTER ING GRAD
IPC: E04F21/04
Filed: 1979-10-20
Abstract: The industrial floor coating is for a cement, magnesite and/or plastics-bonded floor finish. A number of parallel thin, esp. steel cables (17-19) are drawn along at the correct height of the coating (20), pref. approx. 50m. long and 4-6 m. apart. They are precisely adjusted for level and alignment, and stretched taut. The coating is then applied between two adjacent cables, and drawn off on them. The cables are withdrawn and relaid crossways in stages.
Patent DE-2944919-A1 (DE)
Title: Mine part cut machine tool spray water supply - has protruding ring flanges pressing sealing faces together, and pressure faces
Inventor: FOELSING KARL-HEINZ ING GRAD
IPC: E21C35/23
Filed: 1979-11-07
Abstract: The system is used in underground mining. A sliding-ring sealing unit coaxially embraces the cutter head mounting to convey water, for spraying the cutting tools on the part- cutting machine. The water is sprayed into the rotating cutter heads. The transversely aligned ring faces seal a central ring duct. Coaxial radially separated rings (7,7a,8,8a) each have collars (B) protruding into the annular cavity, with sides (A), facing spacer rings (3,5), forming piston faces subjected to sprayed water and pressing the sealing surfaces (13,13a) together. The sealing surfaces contain pressure spaces (15), subjected to a pressure medium forcing the surfaces apart, via ducts (19) from the stationary carrier (1).
Patent DE-2946907-A1 (DE)
Title: Box file for loose correspondence - includes storage section formed as filing basket with spring clamp holding device
Inventor: KLIMACH HORST ING GRAD
IPC: B42F9/00
Filed: 1979-11-21
Abstract: The box file is for storing loose correspondence. A storage section has a cover with a swivel bearing on the storage section. It can be fixed to the section by locking into it. A holding device secures the correspondence on the inside of the storage section. The storage section is made in the form of a filing basket (16) closable by the cover (12). The holding device (18) includes at least one spring clamp element which with the cover closed keeps the stack of correspondence under pressure.
Patent DE-2950618-A1 (DE)
Title: Heat pump operating with waste water - uses waste heat from heat exchanger to heat cooled coolant prior to compression
Inventor: BAUER HEINER
IPC: F25B30/02
Filed: 1979-12-15
Abstract: The heat pump has its cool coolant heated by supplying heat and then compressed and passed to a heat exchanger. The coolant is then cooled by expansion and returned to the region where the heat is supplied. The heat supplied to the cooled coolant is obtained from coolant still warm on leaving the heat exchanger and/or from an energy source independent of external temp. The heat pump operates even at low temps. and has adequate efficiency.
Patent DE-3000356-A1 (DE)
Title: Digestion chamber heating device - using hot water radiators in series between paddles of horizontal mixer shaft
Inventor: REUSCH DIETER
IPC: C02F11/18
Filed: 1980-01-07
Abstract: A heating device for a digestion chamber of biogas (fermentation gas) installations consists of hot water radiators which are arranged across the tank with the horizontal paddle mixer shaft and between the paddles. The radiators, pref. of flattened shape, are connected in series to a closed circuit in which a water meter is used to check the hot water flow rate. This achieves an optimum heat exchange on both sides of the radiators, requiring only a minimum of stirring action for uniform heating. Any deposits on the radiators are removed by the paddles.
Patent DE-3004717-A1 (DE)
Inventor: STEMME OTTO DIPL PHYS DR
IPC: H04N9/11
Filed: 1980-02-08
Abstract: An apparatus is disclosed for electronically scanning photographic positives or negatives and reproducing them as video images. These images are displayed on a video monitor and may, if desired, be copied onto photosensitive paper.
Patent DE-3012978-A1 (DE)
Title: Metering device for margarine or ice cream - with differential piston cylinder and three=way valve in by=pass
IPC: G01F11/04
Filed: 1980-04-03
Abstract: Metering device for viscous or pasty food, e.g. dairy or fatty prods. such as ice cream or margarine, consists of a cylinder with a piston which had rod ends of different dia. at both ends. A by-pass, connecting the two different cylinder chambers, includes a three-way valve with a connection to the reception vessel. The prod. is introduced into the chamber with the smaller annular piston area. Arrangement dispenses precisely determined quantities in every active stroke and allows a continuous prod. supply to the metering device.