baber/WOPTO huggingface dataset:
Patent DE-2927906-A1 (DE)
Title: Electro erosion machining of narrow slits in strip material - achieving high dimensional accuracy by using strip bowed across its width
IPC: B23H9/14
Filed: 1979-07-11
Abstract: Process is described for machining slits of 0.08 mm wide or less, typically parts of metering valves for fuel injection systems. The slits are made successively in metal strip, acting as an electrode, which has to be very thin in order to achieve the required slit width. The dimensional accuracy of the slit is greatly improved by employing strip which has a slightly bowed cross section. The bowing, which does not normally have any untoward effect upon the use of the component being mfd., adds lateral mechanical stability. The strip is thus much less prone to movement caused either by erosion machine vibration or by electrolyte flow. The strip may be mfd. in bowed form, or be deformed by suitably profiled rollers on entering the erosion machine.
Patent DE-2928281-A1 (DE)
Title: Internal combustion engine for agricultural vehicle - has single heat exchanger for exhaust gas cooling air and lubricating oil
Inventor: MAHLER HEINRICH DIPL ING
IPC: F01M5/00
Filed: 1979-07-13
Abstract: A heat exchanger (9) has three concentric chambers (10,11,12). The outer chamber (11) is connected in the exhaust gas stream in parallel with the silencer (6) and also acts as a silencer. The inner chamber (12) is connected (13,14) in the lubricating oil stream. The oil passes through a further heat exchanger which heats the vehicle cabin. The intermediate chamber is open at one end to the atmosphere and is connected (18) at the other to the downstream side of the engine cooling fan (2). This connection contains a damper (19) which can be closed in summer. The intermediate chamber prevents overheating of the oil.
Patent DE-2928683-A1 (DE)
Title: Sail board fork boom coupler to belt of user - uses pivoted sprung snap jaws with manual release lever to hold head on boom projection
Inventor: MARKER HANNES
IPC: B63B35/79
Filed: 1979-07-16
Abstract: The arrangement is intended for releasably coupling the forked boom of a sailing board to the belt (8') of the sailor. It comprises a coupling member (7,8) provided with a central recess at opposite sides of which clamp jaws are pivotable into the recess against force of springs. The boom is provided with a coupling element having a projection carrying a coupling head at the end. When inserted into the recess, the head pushes the jaws apart, after which they engage the rear face of the head to hold it in position. The jaws can be opened to release the head by a hand-operated lever.
Patent DE-2940377-A1 (DE)
Title: potter's wheel with electric drive - is driven by power drill clamped internally to worm drive
Inventor: KRAENZLER ERNST
IPC: B28B1/02
Filed: 1979-10-05
Abstract: The potters wheel machine (2) consists of a throwing disc (3), a worm drive (4) a frame (5) and cover (6). The worm gear (4) has a gear housing (7) a housing cover (8) a coupling element (10) and a central vertical shaft (24) which connects the throwing disc (3) to the drive by means of a friction coupling consisting of an 'O' ring laid in the top of the driving disc (20) on which the throwing wheel (3) rests. For driving the mechine, an electric drill (32) or similar, with a fixing neck (33) and protruding shaft (34) is used. The neck is gripped by the clamp (15) and a six sided driving insert (35) screwed on the shaft (34) engages in a similarly shaped hole in the coupler (10).
Patent DE-3016072-A1 (DE)
Title: Sports racquet connection between head and handle - has I-connector with plate preventing turning of frame by engaging slots in it
Inventor: MOROE SHYUICHI
IPC: A63B49/032
Filed: 1980-04-25
Abstract: The T-shaped connector (1) used to connect the two tubular ends of the racquet frame with the handle shaft is provided in the middle of the hole (4) of the crosspiece with a holder plate (5) which can be of any length and runs along the crosspiece (3). The tubular frame (6) is provided at both ends with a holder slit (9,13) having the length and shape of the holder plate so that, when the frame is inserted into the hold of the crosspiece of the connector the plate enters the holder slit. The plate in the slot prevents the frame from turning and limits the insert path of the frame as the latter is inserted.
Patent DE-3019855-A1 (DE)
Title: Vidicon tube for TV reception of X=ray images - has scanning surface composed of semiconductor islands having negative charge and separated by conductive interstices
Inventor: HAENDLE JOERG DIPL ING
IPC: H01J29/45
Filed: 1980-05-23
Abstract: The vidicon tube has a large-area mosaic target. The electric noise of the following signal amplifier is eliminated by a grid control mechanism of negatively charged islands, together with following integration in a semi-conductor memory (14). The islands can be simulated e.g. by an electrode, forming a mesh (10) produced in the photoresist technique on the free surface of the target (7). This design enables TV pick-up of X-ray images, in which a charge image is formed on a semiconductor layer and scanned by an electron beam. The scanning surface of semiconductor islands is negatively charged, the islands being separated by conductive intermediate gaps. The following X-ray image exposure generates a charge image on the islands. The used potentials for charging and scanning are chosen to generate a negative potential on the islands w.r.t. the cathode.
Patent DE-3024879-A1 (DE)
Title: Octadiene prodn. by hydrodimerisation of butadiene - using catalyst soln. in oxygenated nitrogen heterocycle, e.g. methyl-pyrrolidone
Inventor: SCHLEPPINGHOFF BERNHARD DR
IPC: C07C2/74
Filed: 1980-07-01
Abstract: In the prodn. of octa-1,7-diene (I) by hydrodimerisation of buta-1,3-diene (II) in the presence of a Pd-II salt (III), a tert. phosphine (IV) and an organic solvent (V), (V) is an O-contg. N-heterocycle. (I) is isolated by distn. of the reaction mixt. and the mixt. of (III) and (IV) in (V) obtd. in the sump is recycled. Hydrodimerisation is carried out under inert gas if necessary. (V) is pref. N-methylpyrrolidone (NMP). The wt. ratio of (V):(II) is 0.5-5, of (II):(IV)100-1000 and of (II):(III)250-2000, whilst the molar ratio of (II) to HCOOH used as reducing agent is 0.5-6. (I) is distilled from the reaction mixt. under reduced pressure of max. 500mbar. 0.1-20 wt.% of the sump can be removed and replaced by the corresp. amt. of (III), (IV) and (V) in the same concn. Reaction and working up are carried out under a N2 atmos. (I) is a valuable intermediate in the Oxo synthesis, hydrocyanation and many other chemical reactions, esp. for the prodn. of diesters, dicarboxylic acids, diols and diamines with terminal functional gps. High (II) conversion and selectivity for (I) are obtd. and (I) is obtd. in high purity with little loss.
Patent DE-3026546-A1 (DE)
Title: Emergency exit door safety opening mechanism - has protective adhesive coating on transparent rounded plastic sheath on handle
Inventor: ZUR MUEHLEN RAINER VON DIPL KF
IPC: E05B13/00
Filed: 1980-07-12
Abstract: A security device for door closure mechanisms is esp. for panic fittings or mechanisms in fire doors and other emergency exits, which must be easily opened from inside. It comprises a partially or wholly transparent envelope (1), of foil-type plastics, covering the door knob or closure-activating handle (2). The handle has a curved protrusion (1a) and a flange-type peripheral edge (16). It is connectable with the door leaf (3) via a weakened zone. It has a layer of adhesive for attachment to the door leaf round the panic closure mechanism. This layer can be covered by a pull-off protective foil.
Patent DE-3027715-A1 (DE)
Title: Automatic dynamic signal range control - has feedback from two RC circuits with short and long time constants to eliminate overshoot
Inventor: KLEISCHE WILHELM DIPL ING
IPC: H03G7/00
Filed: 1980-07-19
Abstract: The automatic signal range control circuit eliminates the overshoot effect which is usual with sudden amplitude surges. It achieves this by having two delay RC-networks with different time constants in parallel feeding an FET control element with clamping diodes controlling the feedback levels. Preceding the signal amplifier (4) and following a band pass filter (2) is the resistor/FET (7,8) regulator which is controlled by feed back signals from peak rectifiers (18,19) charging a capacitor (17) and from a second pair of rectifiers (10,11) charging a capacitor with a much longer time constant (12,13), whilst a resistor (22) in parallel to the first capacitor allows it to discharge.
Patent DE-3029030-A1 (DE)
Title: Load control for mill drive mechanism - has spring rotated by drive mechanism in drive counter-direction,d has linkage for load control
Inventor: BARTELS MICHAEL
IPC: B02C25/00
Filed: 1980-07-31
Abstract: The simple mill load control replaces the conventional electric motor control, in which the used current is measured and the measured value is electronically processed to generate a pulse for the supply of an electric servomotor. The latter then takes over the control operation. In the design system, the mill drive machine is rotatably mounted in its frame and operates against a spring force, acting in opposition to the drive direction of rotation. The rotary movement of the drive machine affects a quantity regulating device via a leverage or a Bowden cable. Preferably, a shock absorber is mounted in parallel to the spring action. This type of control is typically applied to an impact mill with pneumatic regulation. In this manner an impact, proportional to the drive moment is used for the control purposes, as the reaction moment of the drive motor is used as a rate of the motor load.
Patent DE-3031252-A1 (DE)
Title: Sodium hydrogen carbonate and hydrogen chloride prodn. - from aq. sodium chloride soln. and carbon di:oxide in presence of amine and polar solvent
Inventor: COENEN ALFRED DR
IPC: C01D7/16
Filed: 1980-08-19
Abstract: Prodn. of NaHCO3 and HCl by reacting aq. NaCl soln. with CO2 in the presence of an amine and an organic solvent is carried out in the following stages. (a) CO2 is passed into a mixt. of aq. NaCl soln., a tert. amine (I) and a polar organic solvent (II) and (b) the phases are sepd. (c) The aq. phase, freed from pptd. NaHCO3 and conc. with NaCl, is returned to (a). (d) The organic phase(s) is freed from (II) and opt. water as far as possible and/or necessary and (e) the residue contg. an apolar solvent (III) is heated and the HCl removed.. The process is economical and favourable to the environment and HCl is produced under milder and simpler conditions than usual.
Patent DE-3037634-A1 (DE)
Title: Pallet storage and movement system - has swivel levers and lever stops actuated to allow passage of pellets or to swivel levers upwards to move pallets
Inventor: JUERGENS WALTER DR ING
IPC: B65G1/08
Filed: 1980-10-04
Abstract: The pallet (2) storage system has a mechanism to move the pallets. This comprises a U-section member (3a) which is arranged parallel to and between two pallet-supporting roller tracks (2a) and carries a number of levers (3) pivoted (4) between its flanges. A bar (5), longitudinally slidable in the member (3a), carries a number of stops (10) which are positioned such that, in one position (B) of the bar, the levers (3) can freely swivel into a horizontal position to let a pallet pass (A), while in the other position they move the levers into an upright position so that they push the pallets forward (B). The bar may be cylinder-operated via a lever (7).
Patent DE-3040449-A1 (DE)
Title: Continuous laundry process - has pressure station to remove water before clothing is passed to spin dryer
Inventor: BEIER ROLAND
IPC: D06F95/00
Filed: 1980-10-27
Abstract: In a continuous laundry operation, where the material has water extracted by centrifugal forces, the washing is given an initial water extraction action before spin drying. The process reduces the energy consumption in removing water from the clothing, giving an effective laundering cycle and water extraction.
Patent DE-3041226-A1 (DE)
Title: Piston oil-scraper ring - has internal electroplated chrome coating and external sprayed ferrous chrome one
Inventor: TAMURA YUUICHI
IPC: F16J9/00
Filed: 1980-11-03
Abstract: The piston oil-scraper ring comprises top and bottom parts with an expander acting between them. The top and bottom parts (5a,5b) are coated along their inner peripheries with chrome deposited by galvanising or electroplating (2a,2b), while a ferrous chrome coating is sprayed onto their outer peripheries (6a,6b). The surfaces of the expander (7) in contact with these parts have a coating formed by soft nitriding. One or more of the compression rings can have its face working against the cylinder wall sprayed with a ferrous chrome layer.
Patent DE-3047466-A1 (DE)
Title: Filter with interdigitated resonators - has two metal plates forming cylindrical outer conductor with adjustable inner conductor sections
Inventor: SCHROEER HORST DIPL ING
IPC: H01P1/205
Filed: 1980-12-17
Abstract: The filter has several interconnected resonators in the form of comb electrodes, or an interdigitated structure, intended for very short electromagnetic waves. Between two facing, metal plates are fitted in a plane inner conductor sections, short circuited at one side. Their length and mutual spacing are so chosen as to provide them an electromagnetic coupling. The plates form a cylindrical outer conductor and the angle between several subsequent inner conductor sections is adjustable. In the middle between at least two resonators in the outer conductor is provided a separating gap. Thus formed outer conductor sections with the respective resonator(s) can be mutually rotationally displaced. Between the resonators may be mounted a metal partition with a coupling slit.
Patent DE-3048381-A1 (DE)
Inventor: WINTERLING GERHARD DIPL PHYS D
IPC: H01L31/06
Filed: 1980-12-22
Abstract: A semiconductor solar cell for the conversion of light to electric energy comprises at least one layer of amorphous silicon, a cover layer of poly-crystalline silicon and an anti-reflection layer of semiconducting transparent oxide of a refractive index of less than 2.8. The cover layer of poly-crystalline silicon has an optical density   <IMAGE>   or it may be   <IMAGE>  The cover layer is arranged between the anti-friction layer and the layer of amorphous silicon.
Patent DE-3104855-A1 (DE)
Title: Rucksack or pack frame
Inventor: JENSEN PREBEN
IPC: A45F3/08
Filed: 1981-02-07
Abstract: In order to allow height adjustment of a rucksack frame, the frame (1) is divided into an upper part and a lower part, which parts are connected to one another by telescopic tubes (6, 7) and a fixing device (14). A support strap (13) at the lower end of the lower part can thus be adjusted infinitely variably in a correct position for support against the spinal region. A considerable advantage consists in the fact that the adjustment of the strap plane simultaneously involves a corresponding adjustment of the overall height of the frame in such a way that the frame adjusted correctly for one user can also be carried freely by hand by the same user. The frame is formed for convenient carrying by hand and for setting down. <IMAGE>
Patent DE-3106711-A1 (DE)
Title: Process for producing small plastic particles
Inventor: MELCHIOR BERND
IPC: B29B9/00
Filed: 1981-02-24
Abstract: The invention relates to a process for producing small plastic particles, in particular small beads or grains, from a curable, in particular polymerisable, plastic liquid, such as a methacrylic acid ester. The plastic liquid is atomised in a gas to form droplets which cure to form particles whilst they float or precipitate in the gas.
Patent DE-3109742-A1 (DE)
Title: Method and device for suppressing the DC magnetization of converter transformers
Inventor: FRANKENBERG WOLFGANG DIPL ING
IPC: H02M7/757
Filed: 1981-03-13
Abstract: During the positive amplitude half-cycle of the primary current, the difference between the primary current (iR1) and the secondary current (iR2) is measured and stored in a memory (26). The difference between the two current amplitudes is likewise measured during the negative amplitude half-cycle and stored in a second memory (27). The difference between the two stored signals forms a measure (imR) of the DC magnetization of the relevant transformer limb. The control voltage (ust) for the converter valves (n1, n4) which operate on this limb is shifted until (imR) virtually disappears. In consequence, DC magnetization of the relevant transformer limb, which can be caused, for example, by asymmetry of the control pulses or a 50 Hz component on the DC side of the converter, is prevented.
Patent DE-3116022-A1 (DE)
Title: Blockout body for column-type elements to be embedded in structures
Inventor: HARTKORN ALFRED
IPC: E04G15/06
Filed: 1981-04-22
Abstract: The invention relates to a blockout body for column-type elements to be embedded in structures, comprising a pot-like hollow body. The hollow body, remaining in the structural element, of the base can be separated from the re-usable wall body. <IMAGE>
Patent DE-3117097-A1 (DE)
Title: Device for feeding antifreeze into a compressed-air system
Inventor: HOMANN PETER
IPC: B60T17/00
Filed: 1981-04-30
Abstract: The device essentially consists of a pressure-medium chamber, arranged in a housing and through which the compressed air flows, an antifreeze-storage chamber and an antifreeze valve via which the pressure-medium chamber can be connected to the antifreeze-storage chamber. A drain valve to be actuated from outside and designed as a rocker valve is provided in the base of the antifreeze-storage chamber. The drain valve is arranged coaxially to the antifreeze valve. A compression spring holding the drain valve in the closed position is supported on the antifreeze valve. When the antifreeze valve has been put into the open position, it is held in this position by the compression spring.
Patent DE-3117768-A1 (DE)
Title: Intake pipe for internal combustion engines and associated tools
Inventor: KOHL HELMUT
IPC: F02M35/10
Filed: 1981-05-06
Abstract: The intake pipe which is cast in a steel casting mould and is made from light alloy or thermally resistant plastic, according to the application has curved outer intake ducts and preferably rectilinear internal intake ducts. In order to permit the withdrawal of all cores in the casting mould, the axes of the circular arcs are pivoted about a resulting angle and in addition the one circular arc is greater than the other. Alternatively the intake pipe can be manufactured without a suction pipe and either incorporated as suction pipe into the carburettor or inserted as a component into the intake pipe.
Patent DE-3120081-A1 (DE)
Inventor: BOHN GERHARD
IPC: A47C23/00
Filed: 1981-05-20
Abstract: 1. A bed part, particularly an upper or a lower bed, which comprises a fabric inlay (2) with copper elements, characterised in that the copper elements are in the form of copper strands and are woven into the fabric inlay (2).
Patent DE-3126295-A1 (DE)
Title: Transformer
Inventor: APPELBERG FERDINAND
IPC: F16K47/04
Filed: 1981-07-03
Abstract: The invention relates to a transformer for expanding and cooling hot vapour, the throttle of which consists of a hollow cylindrical throttle body (10) which is displaceable in a perforated cylinder (8), the throttle body (10) also having bores (11) in such a manner that all bores (9, 11) are sealed in the closed position, that individual bores (11) in the throttle body (10) are exposed first during opening, and that the bores (9) in the perforated cylinder (8) also become free only on further opening. The expanded vapour passes through a sound-absorbing space (12) into the steam outlet (3), where an atomising device (15) for cooling water is situated, which is supplied from outside with cooling water and with hot vapour from a cavity formed from throttle body (10) and perforated cylinder (8). <IMAGE>
Patent DE-3130375-A1 (DE)
Title: A multiplicity of pouches, held together in an endless band, for receiving film strips and positive prints (images) belonging to one job
Inventor: HUJER FRIEDRICH DIPL ING
IPC: G03D15/00
Filed: 1981-07-31
Abstract: The endless band consists of a multiplicity of pouches appended to one another. These are formed by a basic band (1) on which a cover band (2), preferably a film, is stuck at specific points. The basic band (1) and cover band (2) can be separated by perforation lines (5) extending transversely to the band. In the case of the individual pouch, the cover band (2) is stuck to a base strip, to two side strips at right angles thereto, and to a middle separating strip on the basic band, with the result that two containers (10a, 10b) having a common opening side are formed. In addition to the middle separating strip (8), a further perforation line (12) is arranged on the side of the print container (10b). A position mark (10) relating to the transport direction is located on the pouch and maintains a constant distance from the separating strip (8) in the case of different formats (sizes), so that pouches of different format can always be brought into the correct position in a processing apparatus without the need to undertake format setting on the apparatus. <IMAGE>
Patent DE-3130824-A1 (DE)
Title: Method and apparatus for checking the correct handling of a taximeter installed in a vehicle
Inventor: GRAEWERT REINHOLD
IPC: G07B13/02
Filed: 1981-08-04
Abstract: The correct handling of the dial gauge (3) designed, for example, as a taximeter by the driver of a vehicle, such as a taxi or the like, provided with such a dial gauge (3) switchable on and off, can be checked in a simple way in that the switch-on duration of the dial gauge (3) and a change in the vehicle loading state on the passenger side are monitored and signals derived therefrom are recorded against time. This recording can indicate perfectly whether a trip with the vehicle occupied was made with the metering clockwork (3) switched on or not. <IMAGE>
Patent DE-3131031-A1 (DE)
Title: Method for producing area doping when fabricating integrated complementary MOS field effect transistors
Inventor: SCHMID JOHANNA
IPC: H01L21/027
Filed: 1981-08-05
Abstract: The invention relates to a method for producing area doping (9) by ion implantation (8), using a double photoresist mask (6, 7) as an implantation and etching mask. The photoresist used is a double photoresist layer (6, 7) on the basis of phenolic condensation resins and containing the photoactive component of the diazo type. The sequence of steps in this process is arranged in such a way that the n-type trough zones (2), intended for the active zones (12), remain protected against ion implantation (8). This is achieved, inter alia, by a special treatment of the photoresist layers (6, 7). The method is used in the fabrication of complementary MOS field effect transistors (CMOS-FETs). <IMAGE>