baber/WOPTO huggingface dataset:
Patent DE-2838165-A1 (DE)
Title: Segmented flywheel gear rim - has dovetail connections between segments assembled by relative movement normal to common plane only
Inventor: MARTEN KARL-HEINZ DIPL ING DR
IPC: F02N5/04
Filed: 1978-09-01
Abstract: The arrangement is intended for a gear rim secured on a rotating member e.g. a flywheel. The rim consists of a number of segments (3-6) arranged in a common plane and interconnected via hook-like interlocking portions. There may be weld connections between the segments and the member. The interconnections are so arranged that for assembly or dismantling they require relative movement at right angles to the common plane only. The end faces of the segments may have a hammer or mushroom-shaped projection (8) fitting a corresponding recess (11) in the adjoining segment.
Patent DE-2841629-A1 (DE)
Title: Dwight-Lloyd sintering furnace - has two systems of inlet and exhaust systems
Inventor: YOSHIKOSHI HIDEYUKI
IPC: C22B1/20
Filed: 1978-09-25
Abstract: The treatment of combusted gases emitted from a Dwight-Lloyd sintering furnace involves arranging the inlet and exhaust of a large number of wind-boxes along the furnace in a forward system of inlets and exhausts and a rearward system of inlets and exhausts. Air is introduced into the forward inlet system and combusted gas is introduced to the rearward admission system after being preheated by the rearward or forward exhaust systems. The gas is first however dehumidified and freed of dust and then after preheating is disulphurised and denitrided. Investment and treatment costs are reduced because by eliminating the impurities, the gas volume is decreased and is therefore easier to handle. Moreover a purer sinterted prod. is produced because the gas is purer.
Patent DE-2850858-A1 (DE)
Title: Paper cutting installation for coin packaging - works with movable cutting device with its distance to packaging rollers adjustable corresponding to diameter of coins to be packaged
Inventor: UCHIDA ISAMU
IPC: B65B41/16
Filed: 1978-11-24
Abstract: The paper cutting installation forms part of a coin packaging machine. There is a movable cutting device with its distance from the packaging rollers adjustable dependent on the diameter of the coin stacks to be packaged. The cutting installation includes a drive roller (23) which is movable whilst retaining its relative position to the cutting device (3) and a rotatable follow on roller (24) which follows the drive roller during its movement and which works together with the drive roller for the purpose of rolling off and releasing the tension of the packaging paper (1) during its movement to the cutting device (3).
Patent DE-2855546-A1 (DE)
Title: Field controlled thyristors with gate switching - for use at high voltage and with very short switching times
Inventor: BALIGA BANTVAL JAYANT
IPC: H01L21/205
Filed: 1978-12-22
Abstract: One surface of a semiconductor substrate of one conductivity type (a) is etched to form several long channels, which are then filled epitaxially with material of opposite conductivity (b) to form grid zones. Diffusion is then used to form long cathode zones of conductivity (a) between the grid zones. The opposite surface of the substrate is subjected to a diffusion treatment to obtain an anode zone of conductivity (b); and metallised contacts are applied to the three zones. Pref. a Si substrate is partly covered by a mask for treatment with an orientation-dependent etchant of KOH mixed with isopropanol, the channels then being filled from vapour contg. SiCl4, SiHCl3, or SiH2Cl2; or 8 moles HCl to 1 mole SiH2Cl2. The contacts are pref. Al applied by photolithography. Used for mfr. of thyristors with gate switching, which can bar >1000 V with barrier amplifications of 10-100, and switching times 0.5 mu secs.
Patent DE-2903431-A1 (DE)
Title: Recovering reusable materials from used tyres - using machine which removes and reduces steel items tread and finally cuts and removes fabric parts
Inventor: HAGEN EUGEN
IPC: B29B17/02
Filed: 1979-01-30
Abstract: Used tyres are disintegrated and their constituent materials are recovered by first peeling off the inner beads to their rings and reducing them, then removing the tread materials and reducing these, and finally cutting up the fabric material plus sidewalls and removing them from the steel support rings. The tyre is mounted on its normal axis and is rotated at high speed. The machine used has separate facilities for removing and reducing the beads, for peeling off and reducing the tread material, and for macerating the fabric plus sidewalls. If steel cord tyres are processed an additional facility rips up and removes the steel, with a control device to prevent the cutters from touching the steel itself. Provides low capital, low operating costs recovery of all re-usable materials (e.g. fabric for use in linoleum production, rubber for shoe soles etc.).
Patent DE-2904551-A1 (DE)
Title: Sealed chamber surface treatment system - has fixed or reciprocating air jets directed onto workpiece inside grinding material suspension
Inventor: SCHEIBER WERNER DR
IPC: B24C3/12
Filed: 1979-02-07
Abstract: The surface treatment system uses a sealed vessel or chamber (2) with a lock (9a, 9b) each end through which wire or tube (1) can be pulled, to pass through the grinding material (6) held in suspension inside. A suitable blower (5) outside injects air into a chamber under a grid (4) supporting the grinding material. Air is also injected through a supply line (7) connected by branch lines to jets (10) inside sloping towards the wire or tube, controlled by valves (8a, b) connected to the locks. An upper duct (11) discharges into a separator vessel with a return line at the bottom fitted with a valve (18) and an upper duct (13) connected to a further separator (14) for fine material. Another storage vessel (16) containing fresh fine material has a valve (19) for discharge into the chamber (2). The system is for material having a small cross section. The system permits continuous treatment at a lower cost. By using an encapsulated chamber, special provisions for operating personnel are not required, as in the case of blast cabins etc.
Patent DE-2904718-A1 (DE)
Title: Opening mechanism for garage door - using limit switches closes and opens door silently by using second switches to slow drive motor as end positions are approached
IPC: E05F15/684
Filed: 1979-02-08
Abstract: The opening mechanism has a drive motor coupled via a cord or chain to bars attached to the door. Two liit switches detec when the door has closed or opened fully and disconnect the motor's supply. Two second switches (23, 24) operate shortly before the door reaches either of its two end positions and are connected into the supply circuit of the motor and reduce the speed of the motor so that the door 'crawls' open or closed over the last few centimenters. The second switches are located immediately before the first switches (20, 21) indicating that the door is fully closed or fully open. Both pairs of switches are operated by a rider (13) attached to a cord (7) moving when the door moves.
Patent DE-2911633-A1 (DE)
Title: Circuit breaker with gas jet arc extinction - incorporates low pressure channel to increase gas flow
Inventor: THIEL HANS G DIPL PHYS DR RER
IPC: H01H33/70
Filed: 1979-03-24
Abstract: The jet nozzle (1) of insulating material has a hollow body (13). The internal channel (9) is connected through holes (11) in the jet nozzle to the region of the arc between the parting fixed (6) and moving (5) contacts. At the opposite end it is connected by ports (8) to a chamber (4) between the fixed (10a) and moving (13a) parts of the contact assembly. When the circuit breaker opens the chamber (4) rapidly increases in volume resulting in a pressure reduction between it and the outer gas. At a point in the travel of the moving part the ports (8) connect with the chamber (4). The pressure in the channel (9) reduces and gas is drawn, through the jet nozzle holes (11), away from the arcing region. This increase in gas flow velocity in the arcing zone considerably assists arc extinction with a very small increase in operating power requirement.
Patent DE-2913152-A1 (DE)
Title: Water-tight connecting sleeve for cable - has sleeve with bonded intermediate layer to cable insulator
Inventor: PFERSCHY HERBERT DIPL ING
IPC: H02G15/18
Filed: 1979-04-02
Abstract: A watertight coupling sleeve is provided for the connection of electrical cables. The cable insulation (4) is cut back in the region of the join and is inserted into ends of the thermoplastic coupling tube (7). An intermediate layer (5) of an elastic material is located between the tube and the insulator. Normally the sleeve and the cable insulation are bonded to the intermediate layer. When bonded the completed assembly offers complete protection against the ingress of water. The cable ends (1, 3) are joined by a connecting section.
Patent DE-2913276-A1 (DE)
Title: Self-extinguishing polyacrylonitrile article prepn. - by adding brominated aromatic cpd. with antimony tri:oxide and sulphonamide paste mixt. to PPTN. soln.
Inventor: JENKNER HERBERT DR
IPC: C08K5/03
Filed: 1979-04-03
Abstract: Self-extinguishing polyacrylonitrile is prepd. by (i) adding high brominated aromatic cpds., (I) and a ground paste mixt. of Sb2O3 with a sulphonamide, (II) to a polyacrylonitrile soln. in dimethyl formamide and (ii) precipitating the homogenised compsn. in a 50% aq. dimethyl formamide soln. Preliminary grinding of Sb2O3 with (II) prevents Sb2O3 coagulation in the polyacrylonitrile soln. and enables homogeneous distn. (II) dissolves in the aq. pptn. baths and the final articles are free from (II).
Patent DE-2914056-A1 (DE)
Title: Single phase inverter for emergency power supply - uses free wheeling diodes for inbuilt battery charging
Inventor: SCHMALZL FRANZ ING GRAD
IPC: H02M7/5381
Filed: 1979-04-06
Abstract: The emergency a.c. supply is provided by a push-pull transistor inverter (T1, T2) operating into the centre tapped winding (Wb) of a transformer (Tr). The power source, in emergency operation, is a built-in battery (B). Each transistor is equipped with a free wheeling diode (D1, D2) in the normal way. In operation from the mains (N) the inverter transformer (Tr) remains connected, and the free wheeling diodes form a full wave rectifier through which the emergency power supply battery is recharged. The change over from normal to emergency operation and back again is automatic, and dependent upon the presence or absence of mains voltage, Change-over may be by means of contacts on a relay (C) across the mains. The relay contacts control the mains (c1), the inverter control circuit (c2, St) and the battery charge controller (c3, R).
Patent DE-2915606-A1 (DE)
Title: Fettling noble metal castings, esp. jewellery or dental prostheses - where gypsum cluster moulds are clamped on drum rotated in liq. contg. abrasive, esp. glass beads
Inventor: SONNENBERG HERBERT
IPC: B22D31/00
Filed: 1979-04-18
Abstract: Castings are made as a cluster in a gypsum mould via centrifugal casting; and the mould is clamped to a drum rotating rapidly in a tank contg. a suspension of abrasive mineral particles in a liq., so all the gypsum is removed from the cluster. Pref. tank contains a drum made of a circular row of bars mounted between two discs and rotated, pref. with oscillation. Rubber straps ending in hooks are pref. used to clamp the moulds onto the drum bars; and the liq. in the tank is pref. at pH 8.5, contg. glass beads of size 50-100 mu and 300-400 mu as the abrasive. All the mould residues are removed, leaving clean, bright castings.
Patent DE-2916810-A1 (DE)
Title: Records and cassettes display - consists of two cylinders synchronously driven with in line drive shafts
Inventor: OTT REINHOLD
IPC: A47F3/11
Filed: 1979-04-26
Abstract: The display stand for merchandise is partic. suited for ship windows for showing records and cassette tapes, and.
Patent DE-2919390-A1 (DE)
Title: Trocar for abdominal cavity endoscopy - has pressure sensors on and behind pointed tip, connected to visual indicator and warning circuit
Inventor: KUBOTA TETSUMARU
IPC: A61B90/00
Filed: 1979-05-14
Abstract: The trocar for endoscopy of the abdominal cavity has a body (1) with a sharp point (2) which penetrates the skin (7) of the patient. Mounted on the surface of the sloping tip are pressure sensors (4) connected to an indicator (5) at a remote point, giving a signal as the tip is inserted. The sensors are connected to the indicator by wires (6) passing through the body of the device. In the event of a fall in pressure, an audible alarm can be sounded. The device can be connected to a circuit with a ref. signal generator and a comparator so that an indication is obtd. when the recorded pressure rises above or falls below a determined level. Alternative designs have different patterns of pressure sensors arranged at the tip and along or around the body behind the tip.
Patent DE-2926768-A1 (DE)
Title: Protection system keeping windows in optical devices clean - by moving transparent foil across when deemed necessary by opto-electronic detector
Inventor: KRAUSE WILFRED DR
IPC: B60S1/02
Filed: 1979-07-03
Abstract: The system moves a transparent foil (1) in front of the window (8) or lens system. The foil moves from a supply roll (2) to a wind-up roll (3) via guides (4-6). The foil is reinforced at its edges. An optoelectronic device detects when the foil is dirty and actuates the drive that draws a fresh area of foil in front of the window. The optoelectronic device consists of a light source (10) and a radiation detector (11) detecting light transmitted (or reflected) from the foil. The optoelectronic device operates in a spectral band outside that used by the optical device itself.
Patent DE-2930064-A1 (DE)
Title: Radial valve slider on pipe valve - has radial curvature equal to cylindrical valve chamber
Inventor: CZEKANOWSKY FALKO
IPC: F16L55/46
Filed: 1979-07-25
Abstract: The diverter valve is designed for installation in a pipe line. It has a cylindrical flow chamber which can be connected to a branch by a radially sliding valve segment. A valve spindle attached to the slider provides the radial movement. The leading face of the valve slider has the same radial curvature as the cylindrical valve chamber. Thus when the valve branch is sealed off, the valve chamber is able to form a uniform cylindrical passage.
Patent DE-2932900-A1 (DE)
Title: Fluid coupling or brake - has rotor with component interrupting fluid flow in peripheral direction
Inventor: BERGMANN KONRAD DR ING
IPC: F16D65/78
Filed: 1979-08-14
Abstract: The fluid coupling or brake has a rotor with conventional blading, while the flow chamber of the mating rotor has one or more components (3) interrupting the flow in the peripheral direction. Typically these can be throttles, allowing partial flow in this direction, and with an adjusting mechanism acting at right angles to the machine axis, or alternatively functioning as pressure relief valves.
Patent DE-2937359-A1 (DE)
Title: Radial pressure regulator for rotating machine - has lever system which acts against centrifugal force applied to seals
Inventor: TREIS ROBERT
IPC: F16J15/44
Filed: 1979-09-15
Abstract: The system uses a lever (1) which presses against a boss or an intermediate piece (3) and thus exerts at a position (2) a pressure directly opposite to the centrifugal force exerted on the seal (6). The lever also exerts, by reaction, a pressure at another position (3) on the levers (4). This pressure equalises the centrifugal effects exerted on the seal (7). The angular speed is the same for all the elements coming within the line of action. The relationship between actions and reactions remains constant whatever the speed. The system has also V-shaped valves (5) arranged so that incoming gas pressure is added to that of the V branches. The gas either closes the passage behind the sealing elements or only restricts it if additional pressure from the elements is required.
Patent DE-2943495-A1 (DE)
Title: Trimmer circuit for oscillating circuit, e.g. for HF receiver - has trimmer capacitor in parallel with varactor diode facing opposed varactor diode in series
Inventor: FRITZE BERND DIPL ING
IPC: H03J3/18
Filed: 1979-10-27
Abstract: A trimming circuit for a resonating circuit has two varactor diodes connected in series in opposed directions. They are both in parallel to the inductance of the oscillating circuit, while one (C1) is in parallel to the trimmer capacitor (C2). A control d.c. voltage (U) is supplied to the diodes via a high resistance or choke (D). The capacitance of the diodes is adjustable. The capacitor (C2) is switched in parallel to the diode whose switching capacitance has the smaller effect. The control voltage-resonance frequency characteristic in the upper frequency range does not so sharply fall off in dependence on the trimmer capacitance.
Patent DE-2948560-A1 (DE)
Title: Location socket for quick release hose coupling - has radially floating split spring clip as locking element on coupling sleeve
Inventor: SINNING HANS-DIETER
IPC: F16L37/088
Filed: 1979-12-03
Abstract: A plug-in pipe coupling includes a socket fitting (1) for the location of the coupling sleeve (2) which is attached to the hose (4). The leading end of the coupling sleeve is a cylindrical bush (6) which is partially located by the coupling seals (17,18). The seal bush (6) is followed by a tapered collar which on installation of the coupling sleeve is retained by a split spring clip (27). The spring clip has a floating location on the socket body (1), and to release the coupling, it can be expanded with a tool.
Patent DE-3000802-A1 (DE)
Title: Silicon prodn. by decomposition or redn. of silicon cpd. in plasma - produced in carrier gas stream gives pure silicon at very low cost
Inventor: DAHLBERG REINHARD DR
IPC: C30B25/02
Filed: 1980-01-11
Abstract: In Si prodn., a plasma (3) is produced in a gas stream (1) and a Si cpd. (2) is introduced. This is then decomposed or reduced to Si, which is transported away from the plasma by the gas stream. The plasma is pref. produced with a d.c. or a.c. current or by absorption of intensive electromagnetic or ionising radiation in the gas stream. The Si can be deposited on a substrate, pref. of monocrystalline Si, a metal, an insulator, an inert liq. e.g. liq. MgC12 or Pb at 750 deg.C, or a heated substrate (e.g. graphite or ceramic at 1000 deg. C) covered with a thin film of inert liq. e.g. NaF or Sn. Deposition is carried out in an 02-free atmos. opt. in vacuo. The plasma spraying equipment may have a gas- or water-stabilised plasma. The gas stream consists of H2, noble gas, N2, hydrocarbon, C0and/or steam, whilst the Si cpd. can be an O-free cpd., e.g. SiH4, SiCl4, SiHCl3, SiH2Cl2 etc. or a cpd. contg. 0, e.g. SiO2, a silicate or an organo-Si cpd. Gp. III or gp. V dopants can be added to the gas stream. Specified combinations of gas and Si cpd. are H2 and Si chloride; noble gas or H2 and silane; H2 and SiO2; or a mixt. of noble gas or H2 and a hydrocarbon cpd. and SiO2. The process is specified for the prodn. of mono- or polycrystalline Si, pref. wafers, Si solar cells, Si transistors with p- and n-zones and pn-junctiions, Si power and silicides by further reaction of the Si formed in the plasma. Pure Si is produced at very low cost.
Patent DE-3001636-A1 (DE)
Inventor: FINK ROLAND ING GRAD
IPC: C08L23/12
Filed: 1980-01-17
Abstract: 1. Polypropylene film with adhesion properties improved by surface activation, characterised by a content of cellulose with an average particle diameter of 5 to 100 mum. and a greatest average length of the cellulose of up to 200 mum.
Patent DE-3006675-A1 (DE)
Title: Scissors type HV circuit breaker with drive on support - has hollow drive shafts for lower, upper and cross limbs containing conductors
Inventor: HARTIG ALFRED DR ING
IPC: H01H31/36
Filed: 1980-02-22
Abstract: A scissors-type h.v. circuit breaker consists of a drive unit mounted on a support. The scissors consist of upper and lower limbs linked to the drive unit. The limbs of the scissors are fitted with gripping contact piece supports. The drive shafts (9) of the lower scissors members (10) are hollow. The upper scissors members and cross member are fitted with hollow drive shafts. The shafts contain flexible power transmission conductors linked to the bearing plate.
Patent DE-3010892-A1 (DE)
Title: Sandwich panel for buildings vehicle bodies or ships interiors - has steel facing plates hooked at edges and pref. polyurethane core
Inventor: SCHMITZ PETER ING GRAD
IPC: E04C2/292
Filed: 1980-03-21
Abstract: A panel comprising external metal faces with a foam core sandwiched between them is intended for wide-ranging use, in buildings, automobile bodywork and the internal fitting out of ships. Each face of the panel is composed of two or more successive (adjacent) steel plates, having their longitudinal edges hooked or folded together. The plates on one side may be aligned with those on the other or be staggered relative to them. Plates may have a high-quality surface finish of the automobile bodywork type. Pref. the foam core is of polyurethane.
Patent DE-3013836-A1 (DE)
Title: Hysterectomy clamp with two intersecting parts - has jaw groove profile of 30 degree angular inclination and of specified dimensions
Inventor: ZEPPELIN DIETER VON DIPL ING
IPC: A61B17/28
Filed: 1980-04-10
Abstract: The hysterectomy clamp comprises two intersecting sections, each consisting of a jaw, a box-section, an arm, a stop and a ring grip. The jaws are provided with longitudinal grooves fitting together. The groove profile has an angle of approximately 30 deg. The radius and profile height are respectively between 0.3 and 0.4mm, and 0.6 and 1.0mm. The maximum jaw width is 5mm and the jaw thickness at the forward end is not more than 4mm. The radius of the convex portion of the grooves can be approximately 0.2mm. The design allows the tissue between the womb and base of pelvis to be held without trauma and any risk of slippage, and with little effort.
Patent DE-3021837-A1 (DE)
Title: Workpiece clamp for machine tool - has fixed V=block and movable V-jaw with mobility in other directions for differently shaped workpieces
Inventor: KINNL WALDEMAR
IPC: B25B1/24
Filed: 1980-06-11
Abstract: The precision clamp is for holding a workpiece during machining. It comprises a fixed jaw (4) and a jaw (23) which is movable (7-10) longitudinally towards the jaw. The jaw is formed as a (90 deg.) V-block whilst the movable jaw (23) has a smaller-angle (e.g. 70 deg.) V-section outer contour with a smaller V-section groove (24) which is open in the direction of the open V-block. The jaw (23) may be laterally and vertically slidable. The jaw may be rotatably carried so that workpieces of different shapes can be clamped between the jaws.
Patent DE-3025338-A1 (DE)
Title: Carburettor for IC engine - has spring loaded ball in venturi controlling fuel and air pressure
Inventor: JOSTING ERWIN
IPC: F02M9/127
Filed: 1980-07-04
Abstract: The carburettor has a casing (10) with a suction passage (16) and a throttle (18) near the outlet end. A venturi insert (22) above the throttle has a converging section and a diverging section with a venturi throat (24) between them. A ball (30) in the diverging part of the venturi is supported on a rod (36) which extends through the carburettor inlet. A spring (40) on the end of the rod forces the ball into the venturi. The fuel nozzles (34) open on the line (32) on which the ball touches the venturi when it is not moved against the spring by the force of the air flow.
Patent DE-3027237-A1 (DE)
Title: Shaft safety element to prevent axial displacement - consists of ring, located in wedge-shaped bearing space around shaft
Inventor: KRAMER HANS
IPC: F16B21/18
Filed: 1980-07-18
Abstract: The safety element prevents axial displacements of shafts or axles, and consists of a slotted ring. The ring is placed in a constricted area of the shaft, and supports itself on a surface surrounding the shaft. The support shaft (4) is located at an angle relative to the central line (5) of the shaft (1). Due to this, a wedge-shaped bearing space (6) is formed which can accommodate the ring (3).