baber/WOPTO huggingface dataset:
Patent DE-3918530-A1 (DE)
Title: Optical cable TV transmission system
Inventor: MATT HANS JUERGEN DR ING
IPC: H04J14/02
Filed: 1989-06-07
Abstract: A cable T.V. communication network handles a number of signals at different frequencies. The signals are applied as inputs to a modulator (1) that operates with a carrier frequency generator (2). The output is filtered (3) and operates a drive stage (4) coupled to a laser (4) providing an input to an optical fibre cable (5). The recived signal is converted by a photo detector (PD) coupled to an amplifier (6), filter (7) and demodulator (8). The demodulator mixes the spectrum signal with the carrier (fo)  recovered from the transmission.
Patent DE-3925554-A1 (DE)
Title: Electronic module appts. housing - has capacitors coupled to earth line to provide short circuit path for noise signals
Inventor: TUERK HOLGER DIPL ING
IPC: H05K7/14
Filed: 1989-08-02
Abstract: The housing (1) has pairs of guides (4) for receiving the electronic plug-in modules (5), the latter being coupled to cooperating connectors at the rear of the housing.  The housing rear wall exhibits a number of current supply planes (7,8) coupled to the plug-in modules via the connectors. The noise signals due to the coupling capacitances between the current supply planes (7,8) are short-circuited via capacitors (19) connected to the earth lead (21). ADVANTAGE - Simple elmination of noise signals.
Patent DE-3926163-A1 (DE)
Title: Emergency escape door for secure technical enclosure - has additional remote operated security lock which can be operated at need by personnel inside enclosure
Inventor: DIETER VETTERKIND DR
IPC: E05B47/02
Filed: 1989-08-08
Abstract: An escape door (1,2,3) for a secure technical enclosure has a locking bolt (6) with key operated lock (5) and an emergency handle (7) operable from inside the enclosure. An additional security lock (8) necessary to comply with other safety needs, comprises a pair of electromagnetically operated armatures (15,16,9,10) connected by yoke (12) to security bolt (13). Remote operation of the electromagnets (15,16) provides the necessary locking action and de-energisation of either magnet (15) or (16) results in unlocking via reversing force of tension spring (19) or weight (18). To enable escape. ADVANTAGE - Safety of personnel working inside enclosure is not prejudiced by remote security arrangements. Simple and reliable adjuct to existing safety practice.
Patent DE-3932120-A1 (DE)
Title: Thin glass rods prodn. useful in preforms - by compressing melt under increased pressure using transport gas
Inventor: KOBER AXEL DIPL PHYS
IPC: C03B37/012
Filed: 1989-09-27
Abstract: In the prodn. of thin glass rods (I) from a melt, the melt is compressed using a gas under increased pressure (1.5-200 bar), known as transport gas (II). (II) is a non-flammable gas (N2 or noble gas). USE/ADVANTAGE - (I) are useful as cores for preforms, from which are drawn fibres for light guides, projection fibres or other purposes (all claimed). The process is used for the prodn. of glass types e.g. heavy metal fluorides, prone to crystallisation and/or glass types of high temp. dependancy of the viscosity (claimed).
Patent DE-3935351-A1 (DE)
Title: Contact system for miniature electrical relay - has fixed contacts on plates locating on conductor pins
Inventor: MINKS WERNER
IPC: H01H11/00
Filed: 1989-10-24
Abstract: The miniature electrical relay has a base housing (2) that provides a location for the excitation coil (10), with a centre core (11) that interacts with a pivot action armature (14) the armature plate is `L` shaped and moves against spring elements to displace a block (15) that operates against the free end of a cantilever contact carrier (36). Fixed contacts (50, 57) are mounted on plate inserts (51, 54). The top insert is retained on projecting pillars. In both cases the contact inserts latch into position against the ends of connecting pins. ADVANTAGE - Design allows various relay types to be implemented.
Patent DE-3938551-A1 (DE)
Title: IC engine fuel injection nozzle - has longitudinal groove in needle valve stem, delivering fuel to seat
Inventor: HOFMANN KARL DIPL ING
IPC: F02M45/08
Filed: 1989-11-21
Abstract: The fuel injection nozzle has a long bore in the body, with a valve seat at the combustion chamber end, while at the rear end it forms a guide for a spring-loaded needle valve. The guide portion leads into an enclosing pressure chamber connected to a fuel feed passage, while there is a thrust shoulder on the valve at this point, from which a passage between the valve and bore wall leads to the seat. The annular gap (76) between the valve (26) and bore wall (18) between the pressure chamber (30) and the valve seat (20) is reduced to a width(s) allowing good heat transfer between the nozzle body (10) and the valve. Between the pressure chamber and the seat, the stem of the valve contains one or more long grooves (82), delivering fuel to the seat. ADVANTAGE - Improved heat transfer between the nozzle body and valve.
Patent DE-4005629-A1 (DE)
Inventor: CARDUCK FRANZ-JOSEF DR
IPC: C07C29/149
Filed: 1990-02-22
Abstract: The invention relates to a process for hydrogenating native fats, oils and fatty derivatives like fatty acids and fatty acid esters to form fatty alcohols in fixed-bed reactors, especially with constant flow, in which hydrogen is passed through the circuit in stoichiometric excess, especially to the extent of 10 to 100-fold and the fat, oil or fatty derivative passes through the reactor only once. To reduce the specific hydrogen consumption without substantial penalties relating to the specific reactor load, product selectivity and catalyst life, it is proposed that the hydrogen is taken through at least two fixed-bed reactors (4, 10) in succession without allowing the gas leaving the reactors (4), and entering the subsequent reactors (10) to cool and that the fat, oil or fatty derivative is fed in parallel into the reactors (4, 10).
Patent DE-4006742-A1 (DE)
Title: Stirling engine heating and electric current generating plant - includes hydrocarbon-field boiler, heat exchangers as well as alternator driven by engine
Inventor: BRACHTHAEUSER KARL-HEINZ DIPL
IPC: F24D18/00
Filed: 1990-03-03
Abstract: Water is heated in a boiler (2) by an oil- or gas-fired burner (3) from which a free-piston Stirling engine (4) is screened by a flap (16). The cooler (9) is supplied from the base of the boiler (2) through a pump (21) and valves (23, 24), giving up heat (15) to combustion air (18). The heat upmp (6) transfers energy from atmos. or groundwater to the heating circuit (14). The Stirling engine (4) drives a linear AC generator (5) with regulator (7).
Patent DE-4015406-A1 (DE)
Title: Heat and light therapy procedure - radiating selection of coloured polarised light for treatment of skin ailments and bodily functions
Inventor: MUNZ MARIANNE DIPL ING
IPC: A61N5/073
Filed: 1990-05-14
Abstract: The appts (G) consists of a rotatable drum (T) contg. nine polarised colour filters (F) which can be positioned, according to choice, between the halogen tube light source (L) and the output aperture (B). A polished stainless steel reflector (S) is situated behind the halogen light source (L) to focus the light beam towards the output aperture (B). Warm air generated by the halogen light source (L) is directed towards the user through grids (C1) adjacent to the output aperture (B) by two ventilator fans (V). USE/ADVANTAGEa - Highly effective healing processa Simple to use. Only short duration sessions required.  Additional benefit of heat radiation to increase blood circulation.
Patent DE-4016552-A1 (DE)
Inventor: BAAS DIETER
IPC: G11B19/20
Filed: 1990-05-23
Abstract: When a CD-player is switched on, the light beam of an optical scanning device is at first focussed on the CD, before the speed of rotation of the disk is set at the set speed of rotation by means of a synchronizing signal recorded on the disk. In order to shorten the interval between switching on and sound playback, when the machine is switched on, the momentary position of the optical scanning device is immediately sensed and the speed of rotation of the disk is set at the value corresponding to that position, while the light beam is at the same time focussed on the disk. When the light beam is focussed, a synchronizing signal recorded on the disk serves to regulate the speed of rotation. Since focussing and acceleration of the speed of rotation from zero to the set speed of rotation no longer follow each other, but happen simultaneously, the annoying waiting time between switching on and sound playback is essentially shortened.
Patent DE-4017030-A1 (DE)
Title: Wear and corrosion resistant valve seating ring for combustion engine
Inventor: DALAL KIRIT DIPL ING
IPC: C21D1/18
Filed: 1990-05-26
Abstract: Sinter alloy consists of a martensitic iron matrix containing 0.6-1.5 wt.% C and 0.2-2 wt.% Mn with 5-20 wt.% of a finely dispersant hard intermetallic phase of Fe, Mo, Cr and Si.
Patent DE-4017713-A1 (DE)
Title: Television film scanner with semiconductor line sensors - matrices red and blue channels with green, and filters to deriv. absent field components
Inventor: MASSMANN VOLKER DIPL ING
IPC: H04N9/09
Filed: 1990-06-01
Abstract: First the video signals of the red or blue channel is matrixed with that of the green channel of the same field to produce colour mode signal components or colour difference signals. These components are interpolated or vertically filtered so as to derive the absent other field for the red and blue channels. Finally the components for the two fields are matrixed with the relevant green channel field signals to produce luminance field signals, so that full image is produced without colour fringing.
Patent DE-4019428-A1 (DE)
Title: Tool-bit for machine tool - has cooling medium supplied to cutting edges via flat on tool body
Inventor: OPPELT KLAUS
IPC: B23G5/00
Filed: 1990-06-19
Abstract: The tool for a machine tool, particularly a milling cutter (2), has a cylindrical body with cutting edges (8) formed on one end. Cooling medium is supplied to the cutting edges by means of a flat (6) formed on one side of the body. This flat (6) extends from the inner end of the tool to the flutes (10) between the cutting edges. Instead of a flat, longitudinal grooves may be formed in the surface of the body. In both cases the cooling medium is supplied without using holes which may weaken the tool. USE - Tools for machine tools.
Patent DE-4022247-A1 (DE)
Inventor: TETZLAFF HERIBERT DR
IPC: C07D239/36
Filed: 1990-07-12
Abstract: Disclosed is a method for the separation by multi-stage extraction of 2-alkylthio-5-phenylpyrimidines of general formula (I) in which R<1> is H or an alkyl group with 1 to 15 C-atoms, X is an oxygen atom or a single bond and R<2> is an alkyl with 1 to 15 C-atoms, using two organic solvents which give two immiscible phases. The method has the advantage that the phenylpyrimidines are obtained from the reaction mixture at a high level of purity even on a commercial scale.
Patent DE-4025778-A1 (DE)
Title: Removing phosphate and organic phosphorus from waste water - by pptn. with alkaline stabilised alumina soln. obtd. by dissolving pptd. aluminium oxide or hydroxide in soln. of alkali
Inventor: LEHMKUHL JOSEF
IPC: C01F7/04
Filed: 1990-08-15
Abstract: Phosphates and organically combined P are removed from waste water and feed water by pptn. with an alkaline stabilised Al2O3 soln. with molar ratio of Na2O:Al2O3 of 1.5-5.0.  The novelty is that the Al2O3 soln. is a fluid obtd. by dissolving pptd. Al (hydr)oxide in solns. of alkalis. The alkali stabilised soln. pref. has molar ratio of alkali oxide: Al2O3 of 1.5-3.5 (2:1), and is obtd. by inverting a water-in-oil emulsion of Al (hydr)oxide in water, or by dissolving an Al (hydr)oxide-alkali carbonate melt. USE/ADVANTAGE - The treated water is not contaminated with metal cpds.; heavy metals, e.g., Cd, Hg, Pb,Cr, Ni and Cu are eliminated with P. The compsn. of the precipitant can be better adjusted to partic. purification situations. The process can be used on the large scale. The process can be integrated with recovery of drinking water from river water (claimed).
Patent DE-4026536-A1 (DE)
Title: Process and plant for continuous casting thin slab and strip steel - has cooling water distributed through porous mould walls, steam generated forming guide cushion in gap between mould wall and ŸŸŸŸŸŸŸŸŸŸŸŸŸŸ
Inventor: BENZ WILLI
IPC: B22D11/128
Filed: 1990-08-22
Abstract: Process and plant for continuous casting of steel, esp.  of thin slab and strip, has cooling water distributed through porous casting mould walls to the strand surface at controlled volume and pressure, so that the steam generated with uptake of strand heat forms static guide cushions in the gaps between mould walls and strand shell and steam pressure is in equilibrium with ferrostatic pressure of the steel melt. Pref., the mould walls, comprising two long side and two short sidewalls, are provided with cooling water passages connected by pipes to distributor chambers and are of porous, esp. ceramic, material to permit water flow in the direction of the casting cavity. The mould is divided into cooling zones, each with a water distributor chamber and water flow to each is controlled in accordance with the rise in ferrostatic pressure.  Cooling water flow to each cooling zone is controlled by a speed controlled pump connected to each distributor chamber.  Steam is exhausted via a slot in each zone, collected, intercooled, condensed and recirculated to the mould. Steam passing upwards in the enlarged entry zone to the sealed entry chamber excludes air and prevents oxidn. of the melt. ADVANTAGE - Provides high casting speeds, uniform strand cooling, good product quality and high level of operating safety.
Patent DE-4026820-A1 (DE)
Title: Acupuncture device using piezoelectric transducer - supplies pulses to acupuncture point via contact pin projecting through treatment head
Inventor: GRIESHABER BRUNO
IPC: A61H39/00
Filed: 1990-08-24
Abstract: The piezoelectric transducer (16) responds to manual operation of a release mechanism for providing an electrical pulse fed to the acupuncture point. The first transducer electrode is electrically coupled to a cylindrical housing (1), the second transducer electrode electrically coupled to an axial contact pin (20) which is insulated from the housing (1) and which projects through a treatment head (26) screwed to the housing (1). The end of the contact pin (20) is set back from the end face of the treatment head (26), the latter being able to slide axially relative to the housing (1). ADVANTAGE - Ensures accurate application of acupuncture pulses to required point.
Patent DE-4027306-A1 (DE)
Title: Spacecraft fuel vessel - is divided by membrane comprising two or more layers of different materials e.g. fluorocarbon, elastomer
Inventor: HARTMANNS JOERG
IPC: B64G1/40
Filed: 1990-08-29
Abstract: The vessel separately accommodates a liq. and compressed gas discharging it, being partic. for spacecraft fuel. A membrane divides its interior into sections. The membrane comprises two or more layers, either joined together to form laminations or leaving an intervening space, which can be accessible via a valve. The layers can be of different materials, typically fluorocarbon and elastomer plastic. ADVANTAGE - Can also accommodate chemcially-aggressive substances. (4pp Dwg.No.1/2)
Patent DE-4028348-A1 (DE)
Title: DC source for control circuits - has superimposed system for maintaining low voltage from supply voltage pulsing cyclically between min. and max.
Inventor: URBAN BERND DIPL ING
IPC: H02M1/42
Filed: 1990-09-06
Abstract: A capacitive storage element (10, C1) stores the charge amount (Q1) cyclically supplied from the supply voltage (UW, uN) and delivers the charge (Q) taken up continuously over time. The superimposed switching system (1, 2, 3, 6) has a comparator (2, 3) and a switchable ON and OFF current source of negative source (1, ic, I1). The source is then cyclically switched on from the comparator circuit (2, 3) if the instantaneous value of the pulsating supply voltage (UW, uN) esp. a full wave rectified mains AC voltage, lies between its min. and a specified threshold value (U1), the amount of which is greater than that of the low voltage (Uc) and clearly smaller than the amount of the max. value of the supply voltage (UW, uN). USE/ADVANTAGE - Low voltage source with series preconnected switching system. Power loss of non-transformer low voltage source is reduced, also interference caused is reduced.
Patent DE-4033526-A1 (DE)
Title: Rotary hay tedding machine - has two running wheels in line below tined element
Inventor: WERTHMOELLER LUDGER
IPC: A01D78/10
Filed: 1990-10-22
Abstract: The rotary tedder incorporates at least one tined element (6) rotating about a vertical axis. It has a pair of running wheels arranged in line below it. It has the running and support wheels (11,12,13) freely swinging about a common horizontal tilt axis (8) arranged transverse to the direction of travel (F) and below the tined element (6). USE/ADVANTAGE - The haymaker is suitable for tedding and is very quiet and suitable for high speeds of travel.
Patent DE-4101181-A1 (DE)
Title: Evacuation esp. for glass ampoule - using silicone washer for rapid sealing to vacuum line
Inventor: AUER ENGELBERT
IPC: B65B31/04
Filed: 1991-01-17
Abstract: (A) In the evacuation of hollow bodies, esp. glass ampoules (2) pref. contg. chemical reagents, which have one end (3) closed and the opposite end (4) connected vacuum-tightly to a vacuum line (6), the novelty is that, before or during evacuation, a sealing washer (8) is applied to the peripheral edge of the open ampoule end (4), the washing being fitted to the vacuum line end and pref. being made of 'rubber/silicone'. (B) The evacuation equipment is also claimed. USE/ADVANTAGE - The process is useful for evacuating quartz glass ampoules contg. chemicals (e.g. GaAs, InP, GaP), opt. prior to sealing. The washer allows immediate sealing of sawn ampoule ends without pretreatment (e.g. welding of vacuum capillaries) so that an optimal vacuum can be applied in a rapid and simple manne
Patent DE-4103024-A1 (DE)
Title: Packaging different sizes of mixed products - using three=dimensional computer graphics to establish optimum packing pattern in crate for minimum air spaces
Inventor: TRINKAUS HANS LUDWIN
IPC: G06Q10/00
Filed: 1991-02-01
Abstract: The packaging method involves monitoring the flow of items for packaging over a preset interval. The relative sizes and shapes, as well as the number of each item, are recorded. The computer evaluates the optimum crate size and shape to pack a production run of items, leaving a minimum of wasted space and keeping within the maximum loading specifications of the crate. Three-dimensional computer graphics provide the operator with the optimum packaging patterns for the mix of items. Smaller boxes can be collected in a larger crate, providing a secure pack which can tolerate stacking. Another method involves producing a drawing of each layer pattern on a transparent sheet to form a packaging plan by overlaying sheets. ADVANTAGE - Minimum of wasted space, strong packs, handles mix of item sizes.
Patent DE-4103563-A1 (DE)
Title: Water and cleansing liq. supply for dishwashing machine - allows water to enter chamber in which cleanser is metered, when opened by electrically-operated valve
Inventor: GINDRI PIETRO
IPC: A47L15/44
Filed: 1991-02-06
Abstract: Liq. cleanser is dispensed from appts. (9) in a sidewall (2) of the appliance, in predetermined doses to the rinsing chamber (3).  The quantity is metered from a reservoir (10) into a dosing chamber (13) with outlets controlled by normally-closed electrically operated valves (19, 21). The water inlet (5) ends in a nozzle (8) entering the rinsing chamber (3) near the wall (2) and projecting into the outlet (17) so that water can flush the dosing chamber (13) when one valve (19) is open. ADVANTAGE - Requirement for water supply to rinsing chamber without simultaneous issue of cleanser is satisfied simply and inexpensively.
Patent DE-4104209-A1 (DE)
Title: Printing continuous strip with universal print roller - using variable speed print cylinder to hold different lengths of masters and controlling synchronous feed
Inventor: MAJER-PERTHEN FRIEDEMANN
IPC: B41F13/50
Filed: 1991-02-12
Abstract: The printer prints patterns (DL) or different lengths onto the continuous feed paper (21) by varying the print roller speed. During the print phase the roller is moved synchronous with the paper. During the non-print phase the roller is stopped, or moved at a different speed to the paper, either faster or slower. The roller takes different lengths of print master and has a circumference longer than the longest master. A microprocessor controls the roller drive to a program for the different master sizes. ADVANTAGE - Requires single print cylinder.
Patent DE-4109293-A1 (DE)
Title: Device for forming multi-layered stacks - has conveyor vertically movable in support frame with stacking station for pivoting up objects
Inventor: HERRANDO VILLANUEVA ELISEO
IPC: B65G59/06
Filed: 1991-03-21
Abstract: The device has a support frame (1) traversed by the conveyor and containing vertically movable supports (4, 5) which are fitted with pick-up devices (6 to 9) which can be brought into engagement with the objects. The supports are driven vertically by drive systems (11 to 17). In the upper area of the support frame (1) there is a stacking station for picking up a stack (A) of objects. This stacking station has retaining bolts (19) which can be brought by operating mechanisms in the form of switches  (18) into and out of engagement with the objects in the stacking station in order to support and secure these and to allow the pick-up of following objects in the stack. The pick up devices can be indentations or recesses set in the vertical side parts (2, 3) of the support frame. ADVANTAGE - Saving of space and quick and easy assembly.
Patent DE-4111963-A1 (DE)
Title: Limiting travel of clutch - involves deforming heads of pressure plate retaining rivets of each clutch in simple setting fixture
Inventor: HUBER LOTHAR
IPC: F16D13/71
Filed: 1991-04-12
Abstract: Due to wear of the clutch plates the face (5a) of the pressure plate (5) can move forward to a  position (10) that represents the permissible limit for  optimum performance and life. Movement of the pressure plate beyond this point is prevented by the underside of the head (11) of the rivets (8) abutting against the cover plate (4) of the clutch. The three rivets (8) equally spaced around the edge of the pressure plate connect it by leaf springs (6) to the cover plate, permitting axial but not torsional relative movement. By means of a simple setting fixture the pressure plate is located in the extreme position (10) relative to the cover (4). The specially shaped heads (11) of the rivets (8) are then deformed against the cover by applying pressure with a cup headed punch, thus limiting the clutch travel. USE/ADVANTAGE - Simple and economical method of accurately setting limit of clutch travel before assembly into engine.  The clutch operates independent of piece part tolerances.
Patent DE-4112812-A1 (DE)
Title: Torsion bar for vehicle wheel mounting stabiliser - has shoulder between rod and head sections, of length equal to rod diameter
Inventor: MUELLER ANTON DIPL ING
IPC: F16F1/16
Filed: 1991-04-19
Abstract: A torsion bar, in partic. for use as a stabiliser for a vehicle wheel mounting, comprises a steel rod with an interference fit head on one end. In between the head region (24) and the rod section (20) is an intermediate shoulder (22). The rod has a dia. (D1) and the head a greater dia. (D3), with the shoulder dia. (D2) lying between D1 and D3. The shoulder has a length approximately equal to the rod dia. ADVANTAGE - Improved load bearing characteristic, easy mfr.