baber/WOPTO huggingface dataset:
Patent DE-2625097-A1 (DE)
Title: Coupling of optical fibre to semiconductor radiator - using reduced dia. in end section of fibre by etching process and lens on end face
Inventor: TIMMERMANN CHRISTIAN DR ING
IPC: G02B6/42
Filed: 1976-06-04
Abstract: A coupling joining an optical fibre to a semiconductor radiator uses reduced diameter in end section of fibre and lens on end face. The lens is made from material having a lower fusing point than the optical fibre and is fused to the fibre end. The dia. of the optical fibre is reduced by etching. The optical fibre has a relatively thin light conducting core (1) in a relatively strong sheathing (2). The refractive indices of core and sheathing are different, so that on the boundary surface between core (1) and sheating (2), total reflection occurs for the light beams suitably angled in the core (1).
Patent DE-2625525-A1 (DE)
Title: Water sports appliance with ski shaped floats - has two guide surfaces with elements fastened in groups on retainer fittings
Inventor: OEHLER MAXIMILIAN
IPC: B63B34/56
Filed: 1976-06-05
Abstract: The water sports appliance has two long floats with propulsion elements. The floats (1, 2) are connected via an intermediate longitudinal guide (3), which is warp-free and non-bendable. The guide has a guide rail, supported torsion-proof on both floats. Longitudinally movable guide elements of at least one float (2) engage on the guide rail. The guide has two guide surfaces, with separate guide elements engaging on the surfaces. The elements are fastened in groups on two metal retainer fittings. The guide is positioned in a recess on the inside of one float, and the guide surfaces are formed on separate U-shaped profiles, fastened to the associated float.
Patent DE-2626198-A1 (DE)
Title: Pastry squirting appliance - for single-handed operation by lever-releasing plunger spring and braking action
Inventor: WOLF LOTHAR
IPC: A23G3/28
Filed: 1976-06-11
Abstract: An appliance to squirt cream and icing on pastry consists of a tubular casing and a tubular cap. When a detent has been released, the plunger pressure can be regulated by a lever. When the lever is released, the detent automatically engages again. The appliance needs only one hand for the operation. It gives a controlled squirting pressure and produces neat and exact trimmings.
Patent DE-2633293-A1 (DE)
Title: Dispersions of polyaddition prods. of polyisocyanates in hydroxy cpds. - useful as polyol components for prodn. of polyurethanes, by reaction with polyisocyanates
Inventor: REISCHL ARTUR DR
IPC: C08G18/30
Filed: 1976-07-23
Abstract: In situ prodn. of stable dispersions of polyaddition prods. of polyisocyanates in hydroxy cpds. as dispersion media, comprises (a) reacting organic polyisocyanates, cpds. (II) with prim. OH gps. and/or prim. and/or sec. amino gps. and/or ammonia and opt. formaldehyde, in >=1 cpd. (III) with an OH gp., (III) having sec. OH gps. if (II) has prim. OH gps., and in the presence of >=4 wt. % water on total reaction mixt., and (b) opt. eliminating water from the compsn. The process gives finely divided, stable, relatively low viscosity dispersions of the polyisocyanate addn. prod. in the hydroxyl cpd. Prods. are useful as polyol components for reaction with polyisocyanates in the prodn. of polyurethane foams, coating resins and moulding materials contg. dispersed fine particles of the original polyisocyanate addn. prods. Pref. components (II) are polyamines, hydrazines and hydrazides or NH3. The hydroxy cpd. (III) may be e.g. glycols, ester diols, polyester polyol, polyether polyols, polyacetals, etc. Components (I) and (II) may be composed partially of a monohydrazide and/or a prim. monoamine or sec. monoamine and/or a monoisocyanate. An inert organic solvent may be added to lower the viscosity of the mixt.
Patent DE-2636996-A1 (DE)
Title: Brake drum fitting for wheel rim - has mounting flange welded to rim and drum mating surface formed with groove flanked by raised edges forming pressure areas
Inventor: OPEL PAUL DIPL PHYS
IPC: B60B3/16
Filed: 1976-08-13
Abstract: The mounting flange (2) for the brake drum on the wheel rim is welded to the rim and is shaped to fit over the edge of the drum. The mating surface of the brake drum has a groove (6) flanked by two raised edges (9, 8) to form inner and outer pressure areas straddling the securing bolts. The brake drum is securely bolted to the wheel rim with little danger of distortion. The mating surfaces are worked flat for an improved seating.
Patent DE-2639471-A1 (DE)
Title: Insulated waterproof fire resistant slab floor - with foamed urea formaldehyde resin plastic filling between spacer blocks underneath
Inventor: SEIBERT KARL
IPC: E04F15/12
Filed: 1976-09-02
Abstract: The floor in a building is easily made without moisture barrier or footfall-noise-insulating panels, and effectively combines a high degree of heat conductivity, sound deadening, waterproofing, durability and resistance to fire, as required. A setting slab, with end tongues and grooves, and with spacer block underlay, is laid ont he rough basE, and the intervening space is filled with foamed hard-setting urea formaldehyde resin plastics, produced on site. Another slab is then added to the first, with foam applied underneath. The spacer blocks can be cut from old car tyres, with two radially sepg. cuts at the required interval.
Patent DE-2640116-A1 (DE)
Title: Weather-proofing window frames using plastic film - which covers both wood and glazing putty and is esp. fixed with contact adhesive
Inventor: LAURER PETER R DIPL CHEM DR
IPC: E06B3/30
Filed: 1976-09-07
Abstract: Plastic material covers the putty, the face of the window frame member and part of its return edge. Flexible or hard, shaped plastics may be used. Pref. the plastics is fixed with a contact adhesive, over the old paint.
Patent DE-2640798-A1 (DE)
Title: Measurement of material surface area - is performed using measuring wheels with feeler probes activating magnetic position detectors
Inventor: DOKOUPIL JIRI DIPL ING
IPC: G01B7/32
Filed: 1976-09-10
Abstract: Problems of measurement of surface area of leather using pin wheels and photoelectric methods are overcome using a measuring wheel with feelers in conjunction with electric or magnetic detectors coupled to counting circuits. Measuring wheels (7) contain several pin shaped feeler probes which are displaced radially when in contact with material (3) being measured. The material passes over a driving shaft (12) with grooves (11) where the feeler probes enter when no material is present. The feeler probes operate in conjunction with electrical or magnetic position detectors (5) mounted in an arm of a lever (6). A slot in this arm allows the feeler probe to pass through giving a pulse for counting circuits.
Patent DE-2642235-A1 (DE)
Title: Telescopic tube union for stands or scaffolding - has ends twisted to lock via spring plates engaging in adjacent window recesses
Inventor: STEINDL SIEGFRIED R
IPC: F16B7/14
Filed: 1976-09-20
Abstract: The telescopic tube for frames, stands and scaffolding can be used for cameras, projectors and lamp stand legs or collapsible furniture for camping, tent poles, and car radio aerials. Tubular sections can be pushed one inside the other and have a spiral cross-section. By twisting the tube ends against each other at a point between their min. and max. drawn-out length, they can be directly held rigidly. The securing of each tube section at this point is achieved by spring plates on one section engaging in a window-like recess of the neighbouring section.
Patent DE-2642341-A1 (DE)
Title: Surface friction reduction for inflatable boats - uses air film between hull and water drawn under by hull contour
Inventor: HEIDTMANN UWE ING GRAD
IPC: B63B1/38
Filed: 1976-09-21
Abstract: The surface friction reducing, wake improving arrangement for inflatable boats functions by establishing an air film between hull and water. The air may be drawn to the hull/water interfere by the depression created there by hull movement through the water or may be fed down under pressure. In the case of an inflatable, a slot (7) for air flow is created between the transom board (4), located forward of the sidewall ends (6), and an appropriately shaped attached buoyand body (1) enclosing the cockpit space (2) and carrying the steering gear (3).
Patent DE-2642971-A1 (DE)
Title: Selective separation of cobalt, nickel or cadmium - from chlorinated zinc solns. using elementary sulphur and metallic zinc
Inventor: PIRET NORBERT L DIPL ING
IPC: C22B/
Filed: 1976-09-24
Abstract: Selective sepn. of Co, Ni and/or Cd and other metals more noble than Zn is effected by S cementation from chlorided Zn solns. Zn metal and elementary S are added in finely divided form at high temp. to the solns., the suspension is stirred for a long time and the pptd. metals are separated from the Zn soln. The S can be replaced totally or partially by reactive sulphides, e.g. ZnS or FeS. The cemented metals are totally or partially converted into sulphides by the action of elementary S, H2S formed intermediately or by the appropriate sulphides. Co, Ni, Cd, Ag, Cu, Pb and/or As can be pptd. from chlorided Zn solns.
Patent DE-2649256-A1 (DE)
Title: Calculating calendar for phases of moon - has circular disc representing moon in slide housing adjusted relative to date slat
Inventor: CRONACHER WERNER
IPC: G09D3/04
Filed: 1976-10-29
Abstract: A calendar for indicating the phases of the moon has a circular disc representing the moon. It is accommodated in a slide having adjusted relative to the date slab. The circular disc (7) can be displaced in the slide housing (2) below and between two circular cover discs (3, 4) which are arranged at a distance from each other. The central points of the two cover discs (3,4) are positioned above the date slab (19) at the distance of a phase of the moon. The circular disc (7) can be displaced beyond the cover discs (3,4). A correction slide (13) with an adjustable slider is connected to the circular disc (7). Alternatively the circular disc (7) is mounted on the correction slide (13).
Patent DE-2655563-A1 (DE)
Title: Machine tool variable stroke power cylinder - uses cylinder lining slidably adjustable by threaded nut seated on neck of lining
Inventor: NUSS HELLMUT
IPC: F15B15/24
Filed: 1976-12-08
Abstract: The variable stroke power cylinder is for use on machine tools with periodic operating cycles. The power cylinder (1) has a pot-shaped lining (4), the open end of which can be slidingly adjusted along the circular gap (7) created by the bore of cylinder (1) and a central core also accommodating the piston rod (20) of the piston (5), with the other piston rod (6) operating through an extended neck (41) of the lining. The neck has a plain outside surface on which the inner surface of a circular nut (10) is seated. The outside surface of the nut is provided with a thread operating in a corresponding tapping inside the cylinder. Faces of the nut (10) are fitted between the shoulder of the lining bottom and the face of the collar. By operating the nut, the distance between the lining bottom and far side face of piston varies, so that the stroke is altered.
Patent DE-2658675-A1 (DE)
Title: Phase reversal signal generator in TV set - is synchronised by phase reversal of burst signal in chrominance signal
Inventor: KITAMOTO TOSIMI
IPC: H03K3/02
Filed: 1976-12-23
Abstract: A chrominance signal has two colour signals modulated on an auxiliary colour carrier, and the burst signal is modulated on the auxiliary colour carrier. Phase one of the two colour signals is reversed at each scanning period, and the burst signal phase is shifted by (+-) 45 deg. relative to the mean phase. A phase discriminator (64) detects the phase difference between the burst signal and the auxiliary carrier. It has a Schmitt trigger (66) triggered by the phase discriminator (64) output signal, thus generating the phase reversal signal with two different output levels, changed at each scanning period. It is used for phase reversal of the auxiliary carrier for one colour signal demodulation.
Patent DE-2702730-A1 (DE)
Title: Coded transmission braille characters - has coding into frequency for recording on tape cassette followed by decoding into serial form
Inventor: NUEHRMANN DIETER
IPC: G09B21/00
Filed: 1977-01-24
Abstract: A means of communication between the blind is provided by coded signal transmissions coupled with frequency dependent outputs. The six segment coding of Braille is used to provide a representation of an alphanumeric character as a frequency in the range of 100 to 5000 Hz. The signals are readily recorded on a magnetic tape cassette. Playback is made via a decoder that is coupled to a six segment unit which allows serial interpretation.
Patent DE-2702820-A1 (DE)
Title: Dual circuit brake booster - has brake master cylinder piston mechanically coupled to booster piston when servo-pressure fails
Inventor: LEIBER HEINZ
IPC: B60T13/14
Filed: 1977-01-25
Abstract: The hydraulic twin circuit brake cylinder has a booster piston (7) containing a regulator valve (13) to provide a brake circuit (11) with pressure. The valve (13) is actuated by a push rod (18) via a travel limiting spring (19) located in a pressure relief chamber (21). The main cylinder piston (26) has two pistons separated by the length of an annular chamber (25) to form a primary (27) and a secondary pressure chamber (28). The primary chamber is connected by a boring (29) to the booster piston annular groove (16). The secondary chamber is connected to the brake circuit (I). The two pistons (7, 26) are mechanically coupled to the brake pedal when the servo pressure fails.
Patent DE-2708830-A1 (DE)
Title: Surgical wound stitching tool - has button allowing jaw to swing to insert suture for single handed operation
Inventor: ZEPPELIN DIETER VON DIPL ING
IPC: A61B17/28
Filed: 1977-03-01
Abstract: The surgical instrument for making stitches in a wound, has a rod shaped stem with the suture material (15) passing through a hole down the middle. The pointed tip is formed by a fixed jaw (1) and a tilting jaw (4). The suture (15) can be bent over at the end to travel sideways and project outwards, above the tilting jaw. The jaw is tilted by pressing a button (7) which engages a wedge shaped member (6), tilting it against a ball (5) inside, forming a pivot. This frees a resilient backing arm (2), so that the suture can travel between its end and the top of the swinging jaw. This and other designs permit the jaw to be operated with one hand.
Patent DE-2722414-A1 (DE)
Title: Edge gluing machine veneer or plastics strip feed - has extensible pressure roller aligned with preparatory roller revolving faster than conveyor roller
Inventor: KALMBACH KURT ING GRAD
IPC: B27D1/10
Filed: 1977-05-17
Abstract: Strip or elongated sheet material, of wood veneer or plastics is fed to a pressure roller on an edge gluing machine which presses it onto the edge of a workpiece. There is a conveyor roller, at the same peripheral speed, and a freely revolving pressure roller, radially extensible, to press the material onto the conveyor roller, and an intervening rapid-cutting blade. Upstream relative to the conveyor roller (12) there is a preparation roller (15), revolving at greater peripheral speed, and this is fitted with the extensible and retractable pressure roller (16). This can be of greater dia. pref. 1.15:1, revolving at the same speed and a pneumatic cylinder may be used for pressure roller extension and retraction.
Patent DE-2726625-A1 (DE)
Title: Flameproofing polyester fabrics - by treatment with benzthiazole, benzoxazole or benzimidazole sulphonamides or alkyl sulphones
Inventor: HIESTAND ARMIN DR
IPC: D06M13/352
Filed: 1977-06-13
Abstract: Polyester fibres are flameproofed by treatment with a compsn. contg. a cpd. of formula (I) and the treated material is subjected to heat treatment. In the formula, X is O, S or -NH- and Y is -SO2-R1, -S-R1 or -SO2-NR2R3 in which R1, R2 and R3 are phenyl, naphthyl, phenylethyl, benzyl or cyclohexyl gps., opt. substd. by halogen, 1-4C alkyl, sulphonamido or carboxylamido gps.; 1-8C alkyl gps., opt. substd. by halogen, OH, 1-4C alkoxy, or (di)alkylamino gps. with 1-4C alkyl gps., or H; and R2 and R3 = as for R1, or R2 and R3 together = 4-5C alkylene or ethyleneoxyethylene gp., such that is not >2 of R1, R2 and R3 = H. Pref. the fabric is treated with an aq. compsn. contg. 50-700 g/kg. (I), 0.1-300 g./kg. dispersing agent and 0-300 g./kg. of a protective colloid, and the treated fabric is dried at up to 100 degrees C and heat treated at >100 degrees C, esp. 100-200 degrees C. (I) give good fire retardant effect at relatively low pick-up (1-20 wt. % on fabric to be treated) and without affecting the handle or strength of the fabric. Dispersion dyed fabrics can be treated without adverse effect on the print, and the fabric may be dyed or brightened simultaneously with the flame proofing treatment if desired.
Patent DE-2728680-A1 (DE)
Title: Injection nozzle converting single into multiple plastic streams - which is heated and can connect to mould or machine
Inventor: KOHLER ARTHUR
IPC: B29C45/30
Filed: 1977-06-25
Abstract: An injection nozzle which distributes a single stream of plastic into a number of streams. The system includes two members, a plastic receiving member and a plastic discharge member which are connectable in a telescoping relationship. The receiving member has a central plastic receiving opening which extends into a number of channels. These channels connect with a similar number of channels in the plastic discharge member which in turn connects with the mould. The nozzle is cheaper to produce and a complete nozzle is not required for each mould because the receiving part be disconnected from the discharge part. Less problems are experienced in maintaining the plastic hot.
Patent DE-2728825-A1 (DE)
Title: Rapid hardening of concrete panels - via infrared beams wandering over panel surface to avoid local overheating
Inventor: KESTING LORENZ
IPC: B28B11/24
Filed: 1977-06-27
Abstract: The panels, or similar parts, are moved w.r.t. one or more infrared (IR) heaters producing radiation which hardens the panels; and at least a part of each panel is exposed to radiation wandering periodically, esp. in a pref. direction or in a plane. The pref. plant includes a pallet trolley carrying panels under one or more hoods contg. IR heaters. Between the hood and the panels is an endless belt grid driven by a motor and moving in a horizontal plane; the travel of the grid causes the IR ray s to wander over the surface of the panels. In an alternative design, the IR heater hood can be reciprocated above the panels. Provides rapid hardening of the panels without local over heating or burning of the concrete.
Patent DE-2741186-A1 (DE)
Title: Circuit delaying application of voltage to lamp - has PTC resistor in parallel to load to cause supply volts to rise steadily across load after switch on
Inventor: GRUBE WINFRIED DIPL PHYS
IPC: H05B39/02
Filed: 1977-09-13
Abstract: The circuit delays the application of voltage to a load after the supply has been switched on and can be fitted into a lamp holder to act as a ballast circuit. A fixed resistor is connected in series between the load and the supply switch. A PTC resistor is connected in parallel with the load. The PTC resistor's cold resistance is 2-20% of the load resistance under steady-state conditions. The PTC resistor causes the voltage across the load to rise steadily after switch on. The fixed resistor may also be a PTC resistor.
Patent DE-2801094-A1 (DE)
Title: Wooden workpiece polishing machine - is of copying type and has milling fixture for initial rough working on common shaft with polishing fixture
Inventor: SCHMIDT ERICH ING
IPC: B24B27/00
Filed: 1978-01-11
Abstract: A machine is used for polishing the upper surface of wooden workpieces in which a probe follows the upper contour of a model. The workpiece (W) is first rough machined on the same machine. For this purpose, a milling fixture (3) is mounted immediately before the polishing fixture (5). Milling and polishing fixtures are mounted on a common shaft (2) which can be rotated. At least one roller probe (7, 8) is mounted on the shaft. The roller is held in contact with a model (M), so that the milling or polishing tool will carry out the same movement as the roller probe.
Patent DE-2804563-A1 (DE)
Title: Agents for preventing eating of buds of shrubs by birds - contg. a water-dispersible latex-forming polymer as sticking agent
Inventor: KOENIG GUENTER DIPL CHEM DR
IPC: A01N25/24
Filed: 1978-02-03
Abstract: Agents for preventing eating of buds of fruiting and flowering shrubs and trees by birds comprises known active ingredients and, as sticking agents, polymers which are dispersible in water to form a latex. Application by spraying in December affords protection against bud stripping throughout the winter. The pref. active ingredient is finely powdered anthraquinone. The pref. water-dispersible latex-forming polymer is a homo- or copolymer of vinyl acetate. The agents are in the form of aqueous dispersions which pref. contain ca 1% active ingredient and the same amount of polymer.
Patent DE-2810174-A1 (DE)
Title: Gas laser output opto-magnetic stabiliser - uses optically derived signal for magnetic field control which affects discharge channel strength
Inventor: ZEHLE HANS-JOACHIM DIPL ING
IPC: H01S3/134
Filed: 1978-03-09
Abstract: The variations of the output power of a gas laser are caused by the gas discharge mode and the variations of the current supply. Instead of using an acousto-optic transducer in the laser resonator, a signal derived optically from the laser output power is used for control of a magnetic field, affecting the discharge channel. A magnetic coil (1) is wound round the laser tube (6), containing the discharge channel (4). The assembly is mounted in the resonator between mirrors (5). The output power proportional signal is generated in the photodetector (2) from the Brewster window reflex beam (7). Alternately the beam (8), leaving the resonator, may be used for this purpose. The current from the photodector is supplied to an electronic control circuit (3) generating the control current.
Patent DE-2814621-A1 (DE)
Title: Cutting insert for producing threads - comprises ceramic coated triangular metal bit with groove for swarf clearance
Inventor: JANOSI IMRE
IPC: B23B27/06
Filed: 1978-04-05
Abstract: The triangular cutter bit edge has a groove which acts as a guide for swarf. The cutting edge has clearance and cutting angles of 0 degrees. The length of the sides is 1.5 to 3 cm. while the thickness of the bit is 0.3 to 0.5 cm. The cutter bits are made from austenitic, ferritic steels and chrome-nickel case hardening steels. The cutter bits are used at a negative side rake of approx. 7 to 10 degrees. Thread cutting is carried out at a speed of 60 to 100 m/min.
Patent DE-2814661-A1 (DE)
Title: Sound track to film synchronisation process - using light beam passing through edge perforations via fibre optics
Inventor: MICKENBECKER HANS
IPC: G03B31/04
Filed: 1978-04-05
Abstract: The simplified synchronisation of sound track to film strip uses perforations along each strip and an illuminator behind one strip to direct light pulses to the other strip via fibre optics. The synchronisation is obtained when the light intensity through the second set of perforations is at a max. The system thus provides a simple and direct synchronisation control without any complex electroniccircuits. The light intensity can be indicated by l.e.d.s.