baber/WOPTO huggingface dataset:
Patent DE-2345289-A1 (DE)
Title: Frequency demodulator for small modulation indices - with F.M. oscillation to be demodulated applied to a phase comparator
Inventor: LEITL FRANZ DIPL-ING
IPC: H03D3/24
Filed: 1973-09-07
Abstract: Modulation indices are smaller than or equal to 1, and the phase comparator can be in the form of a mixer, to which the signal from a freely oscillating VCO oscillator is also applied. The comparator output voltage is applied through a phase control loop with a loop filter to the oscillator whose frequency is synchronised with and phase locked into the frequency of the oscillation to be demodulated. The control voltage represents the demodulation product. Oscillation to be demodulated is at first applied to a Schmitt trigger with hysteresis, and then to the phase demodulator, whose phase characteristic is triangular. The loop filter and the rest of the control loop is such that the bandwidth in it is much narrower than the highest modulation frequency. An equaliser is connected to the output for the demodulated signal, which corrects distortions caused by the loop bandwidth narrowing.
Patent DE-2346018-A1 (DE)
Title: Hop grid dryer - with endless belt grids and base pressure chamber for hot air distribution
Inventor: DEML ERICH
IPC: C12C3/02
Filed: 1973-09-12
Abstract: The Parent Patent No. 2247597 described a hops grid dryer in which the grids consists of an endless air-permeable belt, with hop passages between the belt and the dryer side wall. In the addition, the dryer is assembled from prefabricated subunits. Each grid consists of a moving air-permeable belt. A pressure chamber at the base of the dryer is fitted with an air distributor and an external heater. This achieves a completely uniform air distribution to all compartments of the dryer. The dryer can be supplied dismantled to any site and assembled without much preparatory work. The hops are spread out uniform over the full area of the grids.
Patent DE-2348310-A1 (DE)
Title: Heat sink for semiconductor diode embedded in insulator - has large sheet metal cooling plate on each diode lead
Inventor: SCHACH ROBERT
IPC: H01L23/367
Filed: 1973-09-26
Abstract: The heat sink for a diode embedded in an insulator, with leads to the semiconductor body extending through the insulator outwards, consists of a large cooling sheet metal incorporated in each diode lead. The cooling sheet metal plates, together with the diode are embedded in a second, outer insulating housing, from which protrude the leads connected to the cooling sheets. The cooling sheets may consists of two parallel strips separated by a gap. One end of the strips is secured to the diode leads, while the other end carries the leads extending through the outer housing. The outer housing may consist of a plastic cap which is filled with cast plastics, after the diode and the cooling sheets have been inserted.
Patent DE-2352030-A1 (DE)
Title: Cooling and cleaning flue gases esp. from incinerators - using satn. cooling, filtration and scrubbing
Inventor: STAESCHE WOLFGANG
IPC: B01D47/06
Filed: 1973-10-17
Abstract: Part of the hot flue gases, esp. from waste incineration plants, principle are satn. cooled and then remixed to achieve the required temp. before filtering. The filtered gas then enters spray/venturi scrubbing section before finally leaving the tower. Scrubbing liquor is recycled round sprays from the sump drain. A baffle allows droplet disengagement from the gas stream. The relative amt. of gas passing through the cooling section is controlled by another baffle. Process avoids flash evapn. cooling.
Patent DE-2357718-A1 (DE)
Title: Portable medicament container for Doctors - has row of folding holders for medicament containers
Inventor: MUELLER GOTTFRIED DR MED
IPC: A61B50/31
Filed: 1973-11-19
Abstract: Portable medicament container like a foldable box has a compartment occupying (part of) the vol. and a row of units for medicament containers in a position in which one of the narrow sides of the units faces the opening. The units can fold out like a book and have holders for the containers on one cover side. On the other side, are fasteners for written information. Preferably the holder for the containers is a rectangular body with recesses for the containers and attached to one cover side, and is a hollow body, deep-drawn from foil. More medicaments are accommodated than in the usual bag or box.
Patent DE-2408721-A1 (DE)
Title: Nitrogen contg. low alloy steels for castings - which are air hardenable to required yield strength
Inventor: SEIDL INGO DIPL ING
IPC: C22C38/00
Filed: 1974-02-22
Abstract: Steels of compsn. 0.16-0.22% C, 0.2-0.6% Si, 0.8-1.6% Mn, 0-1.6% Ni, 0-0.4% Mo, 0.01-0.2% N, and 0.1-0.2% V and/or 0.02-0.1% Ti, balance Fe, which have been used previously for foreged or rolled prodts., can be used to produce air hardenable castings, the props. of which are independent of casting wall thickness. Yield strengths of 25-50kg./mm2 can be obtd. even in castings having large wall thickness without prodn. of quenching stresses and cracks.
Patent DE-2418196-A1 (DE)
Title: Building heating arrangements - using an internal combustion engine with compressor for provision of hot water for homes or groups of buildings
Inventor: KOREK JOHANNES DIPL ING
IPC: F02G5/04
Filed: 1974-04-13
Abstract: Heating arrangement for water using an internal combustion engine and a heat pumping circuit has connected to the engine a compressor of the heat pumping circuit. Through the warming up of the fuel in the condenser of the heat pump and the waste heat of the engine itself a reduced quantity of fuel is needed. The circuit comprises the engine, compressor, condenser, a valve and vaporiser with a fan. The final water temperature is reached in the exhaust gas exchanger.
Patent DE-2418847-A1 (DE)
Title: Paving stone for gardens or cemeteries - has magnetic plate for fastening ornaments such as vases, dwarfs, lamps etc.
Inventor: KEIDERLING GEORG
IPC: A01G9/28
Filed: 1974-04-19
Abstract: The stone may have vertical holes in it through which tubular objects such as pipes can be inserted, and serve to anchor the stone down and to insert the ornament such as vase into. A magnet may be incorporated in the base of the vase, dwarf of stand etc., so that it comes into direct contact with the paving stone which can be of rust-proof steel. In the base of the ornament are screws, clamps or attachments for changing the magnets. Posts may have one or two arms for hanging oil-lamps, bird-drinking-troughs etc.
Patent DE-2419221-A1 (DE)
Title: Dumbbell for sports activities - has tubular ends for mounting of weights, elasticated discs and retention collars
Inventor: SCHNELL JOSEF
IPC: A63B21/072
Filed: 1974-04-22
Abstract: A dumb-bell for sports purposes consists of a bar with tubular end pieces on which the weights etc. are fixed, and vulcanised elasticated discs which make contact with the ground when the dumb-bell is deposited. The tubular end pieces are larger than the bar and are mounted onto it by means of plastic boxes with end flanges. Conventional positioning rings position the tubular end pieces onto the bar. Oval elastic muffs retain the weight discs in position on the end pieces. The elasticated discs may also contain additional weights inset. The elasticity of the muffs is assisted by the use of springs secured to them or by embedding them in elastic material.
Patent DE-2421422-A1 (DE)
Title: Fitting for bulb in motor vehicle headlamp - has folded contact strips held in axial slit in outer face with spring loading and lock
Inventor: ALBERT KARL
IPC: F21V19/00
Filed: 1974-05-03
Abstract: Fitting for incandescent lamp is used for car headlights. The fitting is built into the back of the reflector and is shaped like a telescopic double collar with the front section engaging the bulb. There are two axial cut outs through the recessed outer fae of the fitting used for holding the positive and negative contact strips. These strips are folded near the section which is pushed through the support slit and the fold provides a given amount of spring loading. A cut through the material of the strip provides a fish hook type lock against a ledge inside the slit. One of the end sections of each strip folds over into the space where the bulb is engaged acting as a support and a stop for the bulb. The other end is fitted with the contact head.
Patent DE-2424747-A1 (DE)
Title: Printed circuit board - printed component is resistor or capacitor, conductors are its electrodes
Inventor: TSUNASHIMA EIICHI
IPC: H05K1/09
Filed: 1974-05-21
Abstract: A printed circuit has further connecting paths, and can be in the form of a flat-plate, a cylinder or a bar. The component and the conducting strips are on the insulating support at least one side. The conducting strips are made of silver or of silver and a resin. The circuit has a base layer and a cover layer of an insulating resin and an organic blocking substance on the board side on which are the above component and conducting strips i.e. the base layer is produced before the circuit, and the cover layer after it. Silver migration from a higher potential conductor to a lower potential one can be stopped.
Patent DE-2424876-A1 (DE)
Title: Controlling strip feed on a blanking press - using light-source and edge of blanked holes to trigger strip-feeder
Inventor: SCHULTZ PETER ING GRAD
IPC: B21D43/02
Filed: 1974-05-22
Abstract: Process is for controlling the feed of a machine tool, esp. a press working on strip material. The feed is measured on the blanked strip using a measuring point defined by a punched hole and the feeding device is operated between two successive strokes of the punch until the measuring appts. is reached by the corresponding measuring point of the next punched hole. The measurements are pref. made using the front or rear edges of the bridges left in the strip by the blanking operation. The measuring appts. pref. consists of a light source, laser diode etc. and a photo-electric detector cell giving a signal when the light beam is broken; alternatively, an electromagnetic search-coil can be used. Provides accurate feeding of the strip irrespective of whether the strip becomes displaced w.r.t. the feed mechanism.
Patent DE-2426003-A1 (DE)
Title: Semiconductor component prodn. process - starts with doped silicon crystal whose surface is coated with non-oxidisable inorganic insulant
Inventor: PAMMER ERICH DIPL CHEM DR RER
IPC: H01L23/29
Filed: 1974-05-30
Abstract: The surface of a doped silicon crystal is coated with a non-oxidisable, inorganic insulating film and in addition with an insulating film of silicon nitride. Anodic oxidation transforms the silicon nitride film at various positions into silicon oxide to be removed by etching. Directly under the film of the silicon nitride is provided a layer impeding the penetration of oxygen. This layer is preferably made of silicon dioxide which may be doped. Alternately this impeding layer may be formed by an oxide of a metal of the third group, and/or of the second auxiliary group, and/or of the fifth auxiliary group, and/or of beryllium oxide, and/or magnesium oxide. This layer may be also of a contacting metal, such as titanium, nickel, platinum, or gold.
Patent DE-2429904-A1 (DE)
Title: Nematic liq. crystal display for desk calculators - has two transparent electrodes on transparent substrate plates, facing each other
Inventor: TAKAMI KATSUMI
IPC: G02F1/1335
Filed: 1974-06-21
Abstract: Between the two facing, transparent electrodes is enclosed a nematic liquid crystal layer both electrodes being current supplied and the electric field providing a dynamic dispersion in the liquid crystal. Devices on the substrate plates provide for reflection and/or transmission of the liquid crystal dispersed light. Yellow and yellow-orange light is reflected while the remaining light is permitted to pass through. Transmitted light reaches the substrate plate covered pref. with a layer of lacquer so that all colours between blue and purple are reflected. Additionally, a hook may be used on the calculator to prevent reflections of light from external sources.
Patent DE-2434332-A1 (DE)
Inventor: JAN WOLFGANG VON
IPC: C25D5/38
Filed: 1974-07-17
Abstract: To ensure good adhesion of the electrolytic copper layer on the workpiece made of titanium or titanium alloy, the surface of the workpiece first has a metal, preferably copper, brushed in very thinly and in finely dispersed form, and only then is the copper layer applied electrolytically.
Patent DE-2438198-A1 (DE)
Title: Polyurethane foams from liquid poly esters - made from copolymers of caprolactone and alkylene oxide
Inventor: JENKINS VICTOR
IPC: C08G18/10
Filed: 1974-08-08
Abstract: Polyurethane prodn. comprises taking a liquid copolymer (I) of a lactone and an epoxide, forming liquid prepolymer (II) contg. NCO groups by reacting (I) with a polyisocyanate, dissolving a multi-functional cross-linking agent contg. active H in (I) to form a mixture (III), dissolving a blowing agent in (II) or (III), and mixing (II) and (III) to cause them to react and the blowing agent to generate gas. Pref. (I) is a copolymer (mol. wt. 700-4000) of epsilon-caprolactone and ethylene oxide esp. the copolymer contains 10-70 wt. % of ethylene oxide. Pref. the isocyanate is diphenylmethane diisocyanate (4,4') and the cross-linking agent is a diol (mol. wt. 140) esp. butane 1,4-diol. Pref. a surfactant and a catalyst esp. 1,4-diazobicyclo (2,2,2)octane and/or dibutyl tin dilaurate is dissolved or suspended prior to mixing.
Patent DE-2438475-A1 (DE)
Title: Pneumatic hammer motion control - by photocells along hammer head stroke actuating solenoid valves for air valve servomechanism
Inventor: DIENTL FRANZ
IPC: B21J7/46
Filed: 1974-08-09
Abstract: The reciprocating motion of the hammer head of pneumatic hammers and forging machine is scanned by a light source and photocells, distributed along the whole path of the hammer head. The electrical signals produced by the photocells are electronically processed to actuate solenoid valves for the control of the air supply to the hammer. This eliminates the human element in the control of pneumatic forging hammers and the variable reaction lag of a human operator. The compressed air is better utilised and the forgins produced are more uniform.
Patent DE-2440449-A1 (DE)
Title: Metal multi-unit vehicle-supporting platform surface - with engaging flanges on sections at acute angles to surface
Inventor: KLAUS KASPAR
IPC: E01C5/16
Filed: 1974-08-23
Abstract: The surface, which can be driven over, is suitable for mechanical parking devices, ramps, elevating platforms and elsewhere, and is made up from a series of interconnectable beams. Pref. made of metal, with an upwards projecting beaded walling section at an interval from the edge forming part of the surface, and downwards facing shaped components enclosing an acute angle with a vertical plane, adjoining flanges, one of which grips the other from below. The gripping flange is fitted on the shaped component which is bent back at less than 90 deg. relative to the surface. Both flanges in the pair have peripheral strips running parallel to the shaped components, and with these the adjacent beams fit together. The vehicle weight is always distributed over a number of beams.
Patent DE-2448746-A1 (DE)
Title: Plastic-film gloves powdered inside during manufacture - are easier to put on when wearers hands are damp
Inventor: STOLZENBACH WILHELM
IPC: A61B42/00
Filed: 1974-10-12
Abstract: The gloves, which are stamped out of a tube of polythene film and then welded, are dusted inside with (e.g. polyethylene) powder before the gloves are cut out. The tube is slit down one or both sides and the layers sepd. by passing them over a roller so that powder can be squirted in between them using a nozzle. The layers are then placed together again and the manufacture proceeds as before.
Patent DE-2450038-A1 (DE)
Title: Picture transmission system for telephones - transmits luminance information from picture points arranged in lines
Inventor: WENDLAND BRODER DIPL ING DR IN
IPC: H04N3/34
Filed: 1974-10-22
Abstract: Each picture consists of two fields consecutively transmitted, with the lines interlaced. In order to scan a line the scanning beam is wobbled at a high frequency transversally to the line direction. The picture is reproduced synchronously with the scanning. The wobbling is saw-tooth-shaped, and the peak-to-peak amplitude is such that the adjacent wobbled lines of the picture partly overlap. Seen in the line direction the saw-tooth has a falling edge. Picture points are distributed along this falling edge, and the scanning speed along it is maintained constant.
Patent DE-2506730-A1 (DE)
Title: Current generator with Moebius band wire winding - has current induced in it by migrating magnetic fields
Inventor: PIAZOLO PIUS DIPL ING
IPC: H02N11/00
Filed: 1975-02-18
Abstract: The current generator consists of a looped wire winding and electronically controlled and/or switched magnetic fields, generated by electromagnets or other similar devices grouped around this winding. The magnetic fields are produced by a low current source, such as a direct current battery. The magnetic fields are caused to migrate along the winding so that an electric current flows through it. The looped winding has preferably the form of a Moebius band. Several magnetic fields of different magnitudes, migration directions and time constants can be set up in the Moebius winding simultaneously.
Patent DE-2513116-A1 (DE)
Title: Burner for chemical waste gases containing noxious materials - includes several regenerating units with rotary switching valves
Inventor: KATABUCHI KEICHI
IPC: F23G7/06
Filed: 1975-03-25
Abstract: Burner for waste gases from chemical processes comprises regenerating agent (19) which is maintained at high temp. and over which the gases are passed in heat-exchange relationship to draw off heat from the agent, causing surface combustion and increasing temp. of the gases to ignition point. There may be several regenerating units, with a rotary switching valve (3) at one end for entry of gases, and at the other end a reaction zone including a temp.-adjusting chamber (21) with an auxiliary burner (23) and a distribution pipe.
Patent DE-2522896-A1 (DE)
Title: Self loading skip lorry - with two pivoted servo arms and extending struts for skip
Inventor: GERGEN LEO HEINRICH
IPC: B60P1/64
Filed: 1975-05-23
Abstract: The rear of the skip lorry is fitted with two support arms (2, 3) which are hinged on each other, and with separate hydraulic rams (8, 11) on each. A gantry arm (15) is fitted at right angles on the end of the second arm, and has a hoop (2) in which the coupling end of the skip is located. For normal storage both support arms are flat on the lorry, under the skip, with the gantry arm vertical. The end of the skip is fitted with an extending leg (29) with a roller (30) at the end. When this is extended it allows the skip to be rolled off the lorry in a horizontal setting so as not to spill the load. Empty skips are dropped over the end of the lorry. The system is simple and requires no extra headroom above the lorry.
Patent DE-2523183-A1 (DE)
Title: Plate section separation and stacking installation - using rail base fork lift moving along base carriage with transverse movement controlled by programmer
Inventor: WEHNER BURKHARD ELIMAR
IPC: B65G57/06
Filed: 1975-05-26
Abstract: The apparatus is for the separation and stacking of parcels of plate sections as it arises during the division process of plate separating saws and/or automatics. The separating process is carried out by a rail based fork lift positioned on a length adjustable base carriage with the fork lift and able to move transversely. The fork lift can be controlled by a programming system in it's movements as well as in it's up and down vertical movements. The fork prongs of the fork lift (32, 32', 32") fitted in large numbers and positioned close to each other penetrate both the jibs of a roller or sliding table as well as their one sided vertical posts (2, 2', 2") during the lifting process and during their sideways movement, but are also capable when in the withdrawn position to pass them in a longitudinal direction either above or below.
Patent DE-2524211-A1 (DE)
Title: Self propelled pneumatic ground boring tool - has control sleeve with conical bore eliminated recoil forces
Inventor: JENNE GUSTAV DR ING
IPC: E21B4/14
Filed: 1975-05-31
Abstract: The self-propelled pneumatic boring tool is for making boreholes in the ground and has a cylindrical housing with pointed nose. The housing contains a reciprocating, pneumatically-actuated impact piston for actuating the boring nose. Compressed air is supplied to the cylinder through the central bore of a fixed control sleeve with front and rear control steps. The air flow control arrangement eliminates undesirable recoil forces and vibrations of the tool. The diameter of the central bore (5c) of the control sleeve (5) is continuously increased from the inlet bore size to the outlet bore size. This bore can hence have a straight conical or a curved nozzle shape. The boring nose of this tool slides within a bore in the housing nose block and the boring nose travel is limited by axial stops.
Patent DE-2526732-A1 (DE)
Title: Coffee maker with through flow heare and furring up indicator - used thermostat and light source with prism to trigger indicator
IPC: A47J31/56
Filed: 1975-06-14
Abstract: The beverage maker, more particularly a domestic coffee maker, is provided with a through-flow heater and thermostat wherein the latter is connected to a light source (4) whose light strikes a totally reflecting prism (6) associated with a chalk indicator (10) which signifies the amount of furring up which has taken place in the heater and machine and is to be removed. The light from the prism passes to a photo-transistor which fires a thyristor which in turn is linked to a luminescent diode. In a variation of the design an acoustical warning signal of excessive furring up can be provided alternatively.
Patent DE-2534460-A1 (DE)
Title: Surface decontamination of semiconductors - doped by nuclear transformation using acid etchant
Inventor: HAAS ERNST
IPC: H01L21/306
Filed: 1975-08-01
Abstract: The process comprises freeing the material from adhering radioactive elements by etching in an acid soln. specific for the semiconductor material so that the amt. etched away is greater than the penetration depth of the radioactive and non-radioactive dopants implanted by impact and replating of dissolved dopant is suppressed. Surface contamination is much lower if an acid, rather than an alkaline etchant is used. If the removal of radioactive nuclides is inadequate, inactive carrier amts. of the corresp. element (e.g. Au soln.) are added. The total amt removed by etching should be ca 50 um and the etching time ca 5 min.
Patent DE-2541420-A1 (DE)
Title: Channel reflector for light fitting - has convex or concave strips around light source for focusing light
Inventor: WALTHERT ROLAND DR
IPC: F21V7/00
Filed: 1975-09-17
Abstract: The channel type reflector for lamps has a concave reflecting surface around the lamp axis. This reflector is used for lamps of small surface area, and with high illumination density. The light is accurately guided with low loss of light, for example when using clear bulbs. The reflecting surface (3) consists of a number of strip shaped longitudinal reflectors. These elemental reflectors can have a convex or concave shape relative to their axis of orientation. This arrangement ensures that light diffusion losses are low and light is reflected accurately in the required direction.