baber/WOPTO huggingface dataset:
Patent DE-2644160-A1 (DE)
Title: Pulse sequence generation for counter testing - has voltage controlled multivibrator coupled to divider chain and gating stage coupled to counter output
Inventor: BIECK ROLF-DIETER DIPL ING
IPC: H03K3/72
Filed: 1976-09-30
Abstract: The testing of counter circuits requires that a preprogrammed test frequency is applied and a predetermined pulse sequence length used. The counter is preset when an enable signal is applied. Input pulses are supplied over a frequency division selector coupled to 2:1 divider stages. The pulse source is an astable multi-vibrator with voltage controlled frequency provided by a digital to analogue converter. The activation period of the multivibrator is fixed by a preselected trigger signal that is of a longer period than the required pulse sequence. The pulse sequence is transmitted to output over a delay and a gate controlled by a bistable that is set by the counter. The counter output is generated when the state has changed by a predetermined number of steps.
Patent DE-2650472-A1 (DE)
Title: Key ring fob with printed identity label - is made from transparent plastics material and has identifying label embedded in it
IPC: G09F3/18
Filed: 1976-11-04
Abstract: The key ring fob (6) is made from transparent plastics and carries an identity label, with fluorescent characters printed on it. One end of the fob (6) is rounded, with a hole (24) through the fob (6) at this end, for attaching it to the key ring. Pref. the identity label (26) is embedded in the transparent plastics of the fob (6) and carries the names of a club etc. to which the owner belongs and the membership number.
Patent DE-2655564-A1 (DE)
Title: Roller walking aid for ski shoe - has at least one plate pivot mounted on sole and contained in recess under sole when not in use
Inventor: SCHMID HANS-JOERG
IPC: A43B5/04
Filed: 1976-12-08
Abstract: The roller consists of at least one plate (5) positioned crosswise to the lengthwise direction of the shoe, and in the centre lengthwise plane of the shoe sole. The top of the plate (5) is attached to the shoe sole (2), and the other surface (9) underneath is smaller sized along the shoe than across it. The plate (5) is pivot mounted in a cavity (3) in the shoe sole (2), which is open underneath, and can be moved from a position of not being used inside the sole, to an operating position protruding downwards from the sole. The sole (2) has a front stop piece (7) for the plate (5), as well as a back stop piece. A spring (8) keeps the plate (5) in its position when not in use.
Patent DE-2702841-A1 (DE)
Title: Blade for conveyor belt cleaning scraper - has coating of elastic material on metal strip
Inventor: PONCEAU FERDINAND
IPC: B65G45/12
Filed: 1977-01-25
Abstract: The scraper blade is intended for cleaning conveyor belts. The blade (7) is attached to a support (9), which is hollow to facilitate support of the blade. Clamping pieces forming part of the blade holding mechanism may be inserted in the support. A second blade (10) can also be attached on the other side of the support, forming a symmetrical assembly. The blades are coated on both sides and the edge by a layer of elastic material (8, 11), either natural or synthetic rubber or other material such as synthetic resin. The blades, support and coatings extend over the full width of the conveyor.
Patent DE-2703601-A1 (DE)
Title: Photoelectric sensor with array of sensitive elements - has doped semiconductor regions in matrix on semiconductor substrate of opposite polarity
Inventor: KNAUER KARL DIPL ING
IPC: H01L27/148
Filed: 1977-01-28
Abstract: The photo electric sensor has several sensing elements in the surface of a doped semiconductor. Each sensing element consists of the combination of a surface region doped oppositely to the semiconductor substrate and a layer of electrically insulating material located on top of it. The sensing elements form a matrix of columns and rows. The electrodes of elements in the same row or column are electrically connected together. The regions oppositely doped to the substrate are electrically connected together in each column or row.
Patent DE-2704260-A1 (DE)
Title: Surface treating aluminium or alloy with zirconium ion-contg. soln. - which is carried out prior to lacquering and avoids use of chromate(s)
Inventor: MATSUSHIMA YASUNOBU
IPC: C23C22/66
Filed: 1977-02-02
Abstract: Al and Al alloys are given a surface treatment, prior to the application of a lacquer coating using an aq. alkaline soln. which contains Zr ions and a complex-forming agent. The pH of the soln. is >10 pref. 11.5-13.5. The treated surface is subsequently contacted with an aq. acid soln. contg. tannin or tannic acid. The treatment avoids pollution and toxic hazards as it does not require the use of chromate. Process is esp. for food cans, decorative applications, domestic appliances and cars.
Patent DE-2716705-A1 (DE)
Title: Ink drying unit for ink jet printer - has heater plate controlled in relation to speed of passing paper by impulse generator
Inventor: DRESCHER WOLFGANG ING GRAD
IPC: B41J11/00
Filed: 1977-04-15
Abstract: Ink drying unit for ink jet printer generates the required heat in relation to the speed of vertical transport of the recording surface esp. paper through the printer. The heater and paper transport unit are regulated by a common control unit. More specifically the transport unit has an electric stepping motor which is controlled via an impulse generator which feeds the impulses via a control circuit to the coils of the motor's stator and to a switch for the heater. The heater comprises a hot plate extending over the complete length of a line behind the paper.
Patent DE-2720051-A1 (DE)
Title: Switchboard or mosaic circuit board frame joint - has slotted cylindrical spring connector at crossing point of frame strips
Inventor: OBERHOLZER REINHOLD
IPC: H02B15/04
Filed: 1977-05-02
Abstract: The framework for switchboard components, mosaic circuit board, or for fixture of cover components in house construction, has flat bars joined to one another releasably to form a cross, the joint secured at their crossing point by means of a connecting piece. The connecting piece comprises a housing (7) of spring-elastic material which has four parallel slots (8-11) open at one end. The slots (8-11), near the open ends, are narrowed by hook-shaped projections of the housing wall. These projections engage in the side of the flat bars (2, 3) crossing over the each other when the housing (7) is pushed into position.
Patent DE-2720169-A1 (DE)
Title: Graphite threads and fibres prodn. - from purified low temp. tar pitch giving thin fibres with a high tensile strength
Inventor: ROMEY INGO DR ING
IPC: D01F9/145
Filed: 1977-05-05
Abstract: The pitch has a softening point, according to the Kramer Sarnow method. of 130-150 degrees C. The use of low temp. tar pitch enables ver thin threads to be produced which have a greater strength than threads produced from high temp. tar pitch. For example threads of 5-15 mu dia. may be produced with tensile strength 60-140 kg/1mm2, even after a very rapid after-treatment.
Patent DE-2720727-A1 (DE)
Title: Waveguide with flange joints absorbing tension and compression - has alignment spindle with indentations and cavities fitting matched surfaces at interface
Inventor: MOEHRING GUENTER DIPL ING
IPC: H01P1/04
Filed: 1977-05-07
Abstract: The flange connection is for a pair of waveguides for use in wideband directional finding. The flanges are made with holes for fixing both and flat faces which when brought together will form the interface between the two sections. The joint is capable of absorbing tension and compression and is therefore be suitable for mounting on mobile equipment. The individual circular waveguides (1) are first fitted with an alignment spindle. Indentations are then brought into the outer surfaces of the individual guides to correspond with the cavities in the holes of the fitted flanges. The connecting flange is then fitted to the end of the tube and secured via the cavities. The two flanges are subsequently ground down to produce a flat surface. The holes (14) are thereafter drilled and the bolts inserted. The alignment spindle is hollow and is used for supporting the grinding tool which produces the plain fitting surfaces.
Patent DE-2722680-A1 (DE)
Title: Rapid fitting snow-chain - has overlapping sections on inner and outer loops with hand grips and adjusting hooks
Inventor: MANGOLD ANTON
IPC: B60C27/14
Filed: 1977-05-18
Abstract: The snow-chain has inner and outer loops which lie against the two sides of the wheel and tighten the cross chains. Each loop has overlapping sections threaded through hoops (7, 8) with hooks (10) to shorten the loop. The chain is rapidly fitted and removed without having to remove or lift the car wheel. Each loop is fitted with hand grips (4, 5) for easier fitting.
Patent DE-2732286-A1 (DE)
Title: Blood pressure and pulse rate measuring equipment - has two pressure bags connected separately to Korotkoff sound microphone and pressure transducer
Inventor: YEN DAVID H
IPC: A61B7/04
Filed: 1977-07-16
Abstract: The equipment has two air bags in the cuff, one (11) to compress the artery and another (13) to detect the Korotkoff sounds. In contrast to the conventional series connection to the air line, the bag that detects the sounds is connected over a throttled section of tubing (19), and has a separate connection to its (pref. crystal) microphone (21); the other bag is connected to a pressure transducer (25). The Korotkoff microphone preferably has an AC amplier (22), and the pressure transducer an AC amplifier (26) for the pulse rate, and a DC amplifier (27) for the pressure.
Patent DE-2732635-A1 (DE)
Title: Corrugated plastics hose moulding appts. - has roving split mould sections provided with corrugated walls provided at troughs with radial suction vent holes
Inventor: GRUELL HELMUT
IPC: B29C33/10
Filed: 1977-07-19
Abstract: Appts. for mfg. hose from extruded parison which is fed continuously into a moving mould composed of recirculated split mould sections against which the parison is distended with compressed air to be forced against the corrugations in the mould sections has the corrugations at the troughs provided with peripheral arrays of ven holes for expelling the air from the mould sections due to the parison being expanded. Vent holes, which are extending radially, are connected to ducts delimited by external faces of the sections and guide faces of the guide member for the sections, the ducts which are supplied with high speed cooling air acting as ejectors and induce partial vacuum in the vent holes. Formation of surface irregularities induced by air pockets in the mould cavities is prevented.
Patent DE-2751476-A1 (DE)
Title: Bag filter support cage - with sections of plastic injection mouldings coupled by snap fit
Inventor: KLEINWORT JOERN DIPL ING
IPC: B01D29/15
Filed: 1977-11-18
Abstract: Support cage for insertion into bag filter elements to prevent their collapse under load consists of a pattern of U-shaped rods which are joined by intersecting rings to a cage. The cages are made of a plastic polypropylene or glass fibre reinforced polyester). At the curved end, the dia. is reduced by the thickness of the rods so that the next cage section can be pushed over. It is held by a groove into which its end ring snaps.
Patent DE-2755523-A1 (DE)
Title: Restoring excessively worn concrete road surface - involves movably prestressed sectioned surface on slip layer on sand contg. layer
IPC: E01C7/16
Filed: 1977-12-13
Abstract: A compensating layer (3) of bitumen sand, cement-bonded sand concrete, etc., is spread on the worn surface (11). On an interposed slip layer (4) a reinforced-concrete road surface (5) is added. There are sections, separated by expansion joints, prestressed when concrete has set hard, by stress members (16) held in sheathing tubes (17) so that lengthways and transverse movement are allowed. Repair is quick and economical.
Patent DE-2757997-A1 (DE)
Title: Bite indicator for angler - has housing with relatively movable parts with inner part contg. luminescent liq.
Inventor: WINKLER WERNER
IPC: A01K97/12
Filed: 1977-12-24
Abstract: The fish bite indicator consists of a housing (1) which, as a light sense, has a closable hollow block (2), which consists of transparent clear material. A luminescent liquid is poured into the block. The housing (1) has a cavity (5), with a hook (4) at the free end of the housing (1) and the light source at the other. The light source also serves as closure for the housing cavity (5).
Patent DE-2800979-A1 (DE)
Title: Brittle prod. metering flap - is rectangular with sides perpendicular to axis forming seals after opening
Inventor: BOHLE LORENZ ING GRAD
IPC: F16K1/16
Filed: 1978-01-11
Abstract: The flap dispenses metered quantities of brittle granulate or pieces e.g. of chemical products, pharmaceuticals or food etc. is rectangular and so mounted in a housing or passage section (2) that its two sides (6), at right angles to its pivot axis (4), form seals against the passage walls when opened for an angle of up to 20 deg. A partial or complete sea (5) is formed along the outer edge of the flap. It can alternatively be of material fulfilling the sealing function, when no separate seal is provided. The pivot axis can be on one side in the housing, so that when opening the granulate or items such as pills or sweets are only discharged on one side.
Patent DE-2802423-A1 (DE)
Title: Cine camera resilient pressure element - is inserted between film and pressure plate to prevent film flutter
Inventor: BEULICH HORST
IPC: G03B17/26
Filed: 1978-01-20
Abstract: The camera, e.g. using Super 8 cassette film, includes a pressure element which acts on the film and cooperates with the film plate lying on the opposite side of the pressured element to prevent flutter of the film. The pressure element is made from a resilient material, e.g. foam plastics. Pref. the film plate has two slits of rectangular cross-section on the side facing the film, in which respective strips of resilient plastics are positioned, the top surface of each strip projecting beyond the surface of the film plate. A spring blade at the other side of the film plate biases the strips into contact with the surface of the film.
Patent DE-2806107-A1 (DE)
Title: Portable motorised chain saw with longer life filter - dividing housing cover into chambers, improving accessibility and reducing noise
Inventor: VOLLERTSEN OTTO
IPC: B27B17/00
Filed: 1978-02-14
Abstract: Air filter system of a motorised chain saw is kept clean for a longer period, and is made more easily accessible for cleaning, whilst the air intake noise is dampened. The portable saw has a housing enclosing the motor, a gasifier with an air filter, a fuel container, etc. as well as a guide rail with a chain saw and front and rear handles. The housing has a detachable hood with a boxlike recess, the bottom of which has air inlets, and which has a cover plate. The air filter plate inserted into this inner cavity divides it into two chambers one above the other; the chamber above the filter plate being connected via an air suction opening in the air filter plate and via an air suction fitting to the gasifier.
Patent DE-2818385-A1 (DE)
Title: Polyvinylidene fluoride composite with polyester nonwoven fabric - can be thermo-formed and is useful for prodn. of chemical appts.
Inventor: JAESCHKE HANS
IPC: C08J5/12
Filed: 1978-04-27
Abstract: Polyvinylidene fluoride (PVDF) moulding has a web of thermoplastics polyester nonwoven fabric, pref. with a mass/unit area of 100-300g/m2, on (pt. of) its surface, the fabric pref. being bonded homogeneously to the PVDF moulding without intermediate layer. The prod. can be thermoformed to some extent, e.g. to bubble trays for chemical plant, unlike PVDF with a glass fibre substrate, which must be welded from individual segments. Composites with a relatively thin layer of PVDF can be used, giving a saving in material cost. The interlaminar shear strength (ILSS) is higher than for PVDF-glass fabric composites.
Patent DE-2819665-A1 (DE)
Title: Timber connecting plate aligning device - has two plate-like carriers movable on parallel paths and forced apart by spring each assembly
Inventor: KOLBERG FRITZ
IPC: B27F7/15
Filed: 1978-05-05
Abstract: Two plate like connector carriers (10, 11) include aligning (24, 25) and holding elements (12, 13) for the plates themselves (5, 6). The carriers are mounted so that they can be raised, esp. by folding up. They are pref. movable parallel to each other, with a spring assembly (28) to force them apart. This permits precise alignment of connecting plates at opposite sides of a nodal point or joint, and accurate siting from above on a press bench for driving in.
Patent DE-2820658-A1 (DE)
Title: Remote postage meter accounting system - has digital computer for converting variable data into coded meter data fed to postage meter station
Inventor: CHECK JUN FRANK THOMAS
IPC: G07B17/00
Filed: 1978-05-11
Abstract: The postage finding data is transferred to a finding computer from the location of the finding meter. The meter has a postage meter program with a routine for processing coded meter data and, dependent on the processing, which allows funding data to be added to at least one funding register. The funding computer is located remotely from the meter and receives variable postage funding data. The computer contains a program for converting the variable data into coded meter data which is transmitted to the meter from the computer.
Patent DE-2826230-A1 (DE)
Title: Remote controlled driving mirror - is mounted at front of vehicle to view laterally when entering road
Inventor: ISING WERNER
IPC: B60R1/00
Filed: 1978-06-15
Abstract: A special mirror is mounted on the front of a vehicle and operated by remote control so that the driver can view laterally when entering a busy road. The remote control is by servo drives or Bowden cable connections. The mirror is normally mounted out of view in front of the bonnet or on the radiator grille. It is brought into operation by a remote release and adjusted for optimum effect.
Patent DE-2828998-A1 (DE)
Title: Jet printer ink supply control system - has output of continuously running pump returned when in rest position
Inventor: LURAAS OLAV
IPC: B41J2/175
Filed: 1978-07-01
Abstract: The system controls the supply of ink to an ink jet printer dependent on the operating condition and typing speed, having a pump between the ink reservoir and the printing mechanism. In operation the pump runs continuously, but only delivers ink to the mechanism when this is in the printing position. When in the rest position the ink is returned to the reservoir, typically through a multi-way valve connected to a return pipe, and situated between pump and mechanism. There can also be an exhauster, connected via a solenoid valve to the mechanism and operating when the latter is in the rest position.
Patent DE-2836249-A1 (DE)
Title: Spacers between plates of door lock - are inserts with spigots or shoulders fitting into clearance holes through plates
Inventor: EIGEMEIER WILLI
IPC: E05B9/02
Filed: 1978-08-18
Abstract: The lock with a keyhole at the bottom as in the main patent, has a tubular spacer (1) above the rotary block through which the handle j spindle passes, and another between this rotary block and the keyhole. Both these spacers are diecastings or injection mouldings which fit inside between the two places (4, 5) forming the lock casing. There are also two solid inserts, one each side of the hole for this rotary block, similarly mounted between the two plates. The two spacer sleeves have spigots (2) which fit into clearance holes. The two inserts are shouldered to fit into rectangular clearance openings.
Patent DE-2843039-A1 (DE)
Title: IC engine fuel injection pump timing system - detects flywheel timing mark with probe inserted through housing opening
Inventor: JUNG FERDINAND
IPC: F02B77/08
Filed: 1978-10-03
Abstract: The setting system is for auxiliaries of internal-combustion engines such as fuel injection pumps or ignition distributors which have to function at partic. piston positions, there being a timing mark on the flywheel coming into line with an opening in the housing when a particular cylinder is near TDC. A probe (11) is inserted through the housing opening (5) to detect the mark (4), after which a mechanical measuring device with protractor scale is placed against the flywheel (1). The latter is then turned through a crank angle corresponding to the desired piston position, and the pump or distributor secured to its mounting flange.
Patent DE-2844539-A1 (DE)
Title: Indicator ledge for filing systems - has two guide ledges facing each other with indicator element inserted adjustably by guide surfaces
Inventor: BRAENDEL KURT
IPC: B42F21/08
Filed: 1978-10-12
Abstract: The indicator ledge for filing material has a flat elongated indicator ledge unit which forms two guide ledges facing each other. Between these ledges a single indicator element is fitted adjustably through two guide surfaces coordinated with the guide ledges. The length from that end of the guide surface pointing towards one direction of adjustment to the end of the other guide surface pointing in the opposite direction is greater than the distance between the two guide edges of the indicator ledge element (17) which is made from a springy flexible material.
Patent DE-2853644-A1 (DE)
Title: Teaching aid with overhead projector - has control strip adjacent screen with optical or magnetic signals controlling programme and reading head
Inventor: ZAWELS JACK DR
IPC: G03B21/132
Filed: 1978-12-13
Abstract: A teaching aid used a base with a flat display plate horizontally mounted on it, above which is a projector directed vertically downwards towards the plate. Along one side of the plate is a hood (3) under which is supported a reading head (4), driven by a spindle (5) with its drive motor (6) at one end. Underneath is a strip (8) carrying magnetically or optically stored information. This is contacted by a magnetic head or optical scanner (9) which converts the information into signals for a programme for the aid. The strip also controls the intermittent travel of the reading head.
Patent DE-2903218-A1 (DE)
Inventor: HARTMANN JUERGEN DIPL CHEM DR
IPC: D21H19/20
Filed: 1979-01-27
Abstract: A process for the manufacture of paper having a high dry strength and a low wet strength, by treating the surface of the paper with an aqueous solution of an alkali metal and/or alkaline earth metal salt of a polymer of (a) from 91 to 100% by weight of acrylic acid and/or methacrylic acid and (b) from 0 to 9% by weight of acrylonitrile, methacrylonitrile, acrylamide, methacrylamide, vinyl acetate, maleic anhydride, diisobutylene, an ester of acrylic acid and/or an ester of methacrylic acid, which has a viscosity of from 5 to 100 mPas in 2% strength aqueous solution at 20 DEG  C., and drying the impregnated paper. The polymer is generally employed in an amount of from 1 to 4% by weight, based on dry paper, and increases the dry strength of the paper without substantially increasing the wet strength.
Patent DE-2910847-A1 (DE)
Title: Heavy duty friction clutch or brake - has profiled steel disk coated with hard chromium, mating with friction blocks made of sintered metal or polymers
IPC: F16D69/02
Filed: 1979-03-20
Abstract: The device will transmit or brake heavy leads via relatively short movements of the working parts of the coupling or brake. A mobile friction element (1) made of steel is provided with a row of friction surfaces which progressively increase and then decrease in thickness; and these surfaces consist at least partly of chromium and mate with friction blocks. Surfaces are pref. chromium plated, pref. on top of an intermediate layer of Cu; whereas blocks are pref. made of sintered metal; organic and/or inorganic substances; plastics; or plastics contg. fibrous or powdered organic or inorganic fillers. The coupling or brake is free from stick-slip effects.