baber/WOPTO huggingface dataset:
Patent DE-2445666-A1 (DE)
Title: Light meter controlling photographic electronic flash - has light sensor in series with capacitor across pulsed current supply
Inventor: DIETRICH ROLF DIPL ING
IPC: H05B41/32
Filed: 1974-09-25
Abstract: The light sensor (3) is connected in series with an integrating capacitor (4) and a DC generator (1) in series with a pulse circuit (2) is connected across the series sensor (3) and capacitor (4). A voltage divider comprising a series capacitor (5) and resistor (6) is also connected in parallel with the series light sensor (3) and integrating capacitor (4), with the control electrode (700) of a switching transistor (7) connected to the junction between the capacitor (5) and the resistor (6) of the voltage divider. The other two electrodes of the switching transistor (7) are connected across the integrating capacitor (4). The light sensor (3) is pref. a photo transistor, and the junction between the sensor (3) and the integrating capacitor (4) is connected via a threshold circuit (8) to a switch (9) for the flash tube (10).
Patent DE-2448848-A1 (DE)
Title: Electronic ignition system for internal combustion engine - breaks primary current through induction coil when contact breaker closes
IPC: F02P3/04
Filed: 1974-10-14
Abstract: An induction coil has its secondary winding connected to a distributor. The primary winding is energised from a battery and is in series with the collector emitter circuit of the switching transistor. The base of the switching transistor is connected to the centre of a potential divider formed by the emitter and collector of a control transistor and a resistor. The base of the control transistor is connected to the midpoint of a potential divider which is in series with the contact breaker. When the contact breaker is open the control transistor is blocked and allows the base potential of the switching transistor to drop so that current flows through the primary winding. When the contact breaker closes, the control transistor conducts and blocks the switching transistor.
Patent DE-2453815-A1 (DE)
Title: External ignition rotary piston engine - has scavenger chamber connected by passage to spark plug
Inventor: HARST HERMANN
IPC: F02B1/04
Filed: 1974-11-13
Abstract: Rotary engine of epitrochoid construction is provided with a scavenger chamber in the cylinder casing close to the spark plug and communicating with the spark plug electrodes by a pressure channel. An annular chamber is provided in the spark plug bore with radial apertures leading to the spark plug electrodes. The pressure channel leading to the scavenger chamber joins the annular chamber surrounding the spark plug. The scavenger chamber is formed as a simple bore parallel to the casing faces and closed by the casing ends.
Patent DE-2460545-A1 (DE)
Title: Telephone exchange with PCM links - has multiplexer-demultiplexer assemblies for analogue speech signals switching
Inventor: PABIC JEAN PIERRE LE
IPC: H04Q11/04
Filed: 1974-12-20
Abstract: The telephone exchange has a signalling information receiving device and terminal equipment for coding and decoding. The exchange comprises further multiplexer and detiplexer assemblies for analogue speech signals switching. Each PCM frame has a signalling channel whose signals are accompanied by clock pulses from the exchange connected by the corresponding PCM link. Recognition devices connected to the exchange clock generate a recognition signal which appears at least twice during the clock signal presence. A timing memory intermediately stores the incoming signalling signals during the recognition signal second appearance. Logic circuits block the timing memory input for further channel signals after the recognition signal's second appearance.
Patent DE-2460748-A1 (DE)
Title: Heating or hot water supply circulation pump - air can be removed from divided pump and motor section by filling with water from pump chamber
Inventor: JENSEN POUL DUE
IPC: F04D13/06
Filed: 1974-12-21
Abstract: A circular pump partic. for heating and hot water supply systems, consist of a housing subdivided by a separating wall into a pump chamber and a pump drive motor chamber. A particular aperture is provided in the separating wall through which the drive shaft of the pump passes to allow the motor chamber to be filled with water from the pump chamber to remove air. The aperture opening into the pump chamber is situated at a large-radial separation from the drive shaft than the aperture opening into the motor chamber.
Patent DE-2460775-A1 (DE)
Title: Dyeing and printing polyesters and cellulose triacetate - blue shades with azo dyes from diazotised amino azo benzenes and aniline derivs
Inventor: HEINRICH ERNST DR
IPC: D06P1/18
Filed: 1974-12-21
Abstract: Dyeing or printing of macromolecular polyester material esp. those based on poly-(ethylene glycol terephthalate) or their mixts. with natural materials, or cellulose triacetate, is effected with dye baths or printing pastes contg. at least one dyestuff of formula (I) (where X is H.Cl,Br,CN or NO2; Y is H, Cl or Br; R1,R3 and R4 are the same or different alkyl or alkenyl gps; R2 is H, halogenM alkyl, alkoxy or alkenyloxy). The dyes give deep violet-blue-grey-blue shades with excellent fastness to light.
Patent DE-2501198-A1 (DE)
Title: Gas burner jet supply control device - notched rod moves along guides, operates transversely-placed valves
Inventor: LOTZ HORST K ING GRAD
IPC: F23D14/46
Filed: 1975-01-14
Abstract: The main supply pipes are connected to the individual jet supply pipes, through individual valves with face and seating which are normally closed by springs. Each valve is operated by its push rod whose movement is at right angles to the line. A notched rod which can be moved along guides between two rows of jets, operates the push rods in any desired pattern and to any desired extent. The movements of the notched rod can be automated if required. The transverse apertures in which the valves move, can be closed on the outside by a plain block, or by a block containing a channel for cleaning fluid with outlets closed by the fully-open valves.
Patent DE-2502528-A1 (DE)
Title: Plastic pallet foot for a pallet or carton bottom plate - with a honeycomb cellular structure giving transverse stability
Inventor: WILD WERNER DIPL ING
IPC: B65D19/40
Filed: 1975-01-22
Abstract: In a plastic pallet foot having a downwardly tapering shaft-link support body, constructed with a support plate at the lower end and a flange at its upper end for fixing it to the underside of a pallet, the support body has outwardly open cell in a honeycomb arrangement. Provides transverse stability to the foot in addition to the axial stability already present in known designs.
Patent DE-2509436-A1 (DE)
Title: Control circuit for alpha-numeric display - has on-off switch for each of number of display elements
Inventor: LUDES ROBERT ING GRAD
IPC: G09G3/16
Filed: 1975-03-05
Abstract: The control circuit is for a display block used to display alpha-numeric characters and emplying a number of display elements, each with ON-OFF switch. The ON-OFF switch for all display elements of the display block are connected to a line supplying a given potential upon each transition from one displayed character to another. The opposite potential used for operating the switch of the selected elements is provided by closure of a transistor switch (T1), the transistor switch being controlled so that the switches for all the selected elements operate simultaneously. The switching circuit for the switches includes a transistor emitter-collector path, the transistor base being connected to the output of a selector circuit.
Patent DE-2510759-A1 (DE)
Title: Synchronizing ring in vehicle gear box - is assisted by slotted doubled tapered stop ring with location blocks
Inventor: KUNZ EMIL
IPC: F16D23/02
Filed: 1975-03-12
Abstract: The synchronizing unit in a vehicle gear box has two slotted friction rings (11, 12) which are axially located on either side of the operating sleeve (6). The rings (11, 12) have external double tapers. Taper (15) next to the operating sleeve centralizes the ring when engaged in a matching inside taper of operating sleeve (6). Taper (14) next to the gear wheels (2, 3) engages the gear wheel which is to be coupled. A slotted lock ring is located on hub (13) of ech coupling body (4, 5) by means of stop blocks (32) which are placed at an angular distance of about 240 deg. along the hub circumference.
Patent DE-2511687-A1 (DE)
Title: Bellows for pumping cylinder - has bellow convolutions formed in two sections for each curve
IPC: B66F3/35
Filed: 1975-03-18
Abstract: The wall of the cylinder is formed by a bellows, the convolutions of which are parallel to one another and to the end plates. The tips of the convolutions lie on an imaginary cone, the base of which lies on the base plate. Each convolution (11) consists of two parts (9, 10). The shape of the bellows is such that the quotient of the bending moment and the moment of inertia at each point of the bellows is approximately constant. The cylinder top plate (5) has an opening (14) through which the inner space of the cylinder can be charged with working medium and through which this medium can also be exhausted.
Patent DE-2516166-A1 (DE)
Title: Railway-track ballast-compactor - consists of four compacting-implements with at least three more at the side
Inventor: SIEKE HELMUT DIPL ING
IPC: E01B27/16
Filed: 1975-04-14
Abstract: The junction (3) of the rails (1) and sleepers (2) is where the maximum compaction is applied, by four compactor-implements (4). Two pairs of further compactor-implements (6, 7) are positioned, one (6) on the inside of the track, and the other (7) in front of the sleeper (2), with their direction of movement at right angles to the sleeper sides (2). Vibrating tamping elements (8) which move in a vertical direction are positioned on the side of the compacting-implements (4) facing the rail-sleeper junction-point (3).
Patent DE-2522232-A1 (DE)
Title: Drop or fall tube for rescue use - has sensor activated basket sliding within tube to catch escaping person
Inventor: HARTUNG HEINZ
IPC: A62B1/20
Filed: 1975-05-20
Abstract: The rescue or safety type drop or fall is constructed as a smooth surfaced tube (1) installed in the supply shaft (2) of a building (3). A series of flap doors (4) allow access to the tube (1). In the event of emergencies, people leap through the doors and drop 20-500 meters until they reach sensors (5). Motion of the sensors (5) activates a rope or vable (6) to allow a basket (9) to drop slowly catching the falling person and being braked agains the sides of the tube or shaft (1). An air cushion is formed below the bracket (9) due to its downward motion and this acts as a brake to arrest its fall. Further devices are provided to assist in the operation of the system.
Patent DE-2523156-A1 (DE)
Title: Formwork vertical beam and horizontal beam attachment - has retainer arms on connecting element freely swivelling and angle adjustable
IPC: E04G17/04
Filed: 1975-05-24
Abstract: The fixture element provides removable attachment of horizontally aligned traverses to the vertically aligned lattice beams of a formwork element. A connecting element has a retainer arm which has pieces engaging the traverse, to make this universally applicable and easy to manipulate. The retainer arms are mounted on the connecting element so that when they are installed, in the vertical direction, they can be freely swivelled and adjusted over a wider angle range. The connecting element may be a stud with lock nut, while the retainer arms are annular screws. There may be four such annular screws, with claws (9) attached. This system can be used with virtually all types of vertical beams and horizontal traverses.
Patent DE-2523759-A1 (DE)
Title: 5-Nitro furfural diacetate prepn. - by nitration of furfural in acetic anhydride
Inventor: GILLER SOLOMON ARONOVICH
IPC: C07D307/71
Filed: 1975-05-28
Abstract: 5-Nitrofurfural diacetate (I) is prepd. by (a) adding furfural (II) (or a soln. of furfural diacetate (III) in acetic anhydride) and a mixt. of HNO3 and H2SO4 simultaneously to stirred acetic anhydride at -10 to +10 degrees C at rates such that a molar ratio of (II) or (III) to HNO3 and H2SO4 of 1:1.1-2:0.036-0.041 is maintained and the teamp. remains between -10 and +10 degrees C; (b) treating the reaction mixt. at 0-15 degrees C with 1.1-1.8 pts. wt. H2O per pt. wt. of Ac2O initially the present; (c) adjusting the pH to 3.5-5 with alkali at 0-25 degrees C; (d) keeping the mixt. at 45-55 degrees C; and (e) isolating the prod. (I) is used as a starting material for the prepn. of chemotherapeutic agents for use in medicine and agriculture. The process avoids the formation of explosive mixts. of acetyl nitrate and Ac2O, and gives high yields (e.g. 78-85%) of high-purity (I).
Patent DE-2525171-A1 (DE)
Title: Evaluation circuit for fault signals - designed for DC monitored emergency line of indicator systems
Inventor: WINKLER HANS-GEORG ING GRAD
IPC: G01R31/02
Filed: 1975-06-06
Abstract: Resistance of the signalling line, or of the emergency calll line terminating resistance, is inserted into a bridge arm. Increase or decrease of this resistance causes bridge imbalance and bipolar changes of the bridge output variable. They are converted into unipolar signals for generation of a fault indicating signal. A diode is allocated to each input of a differential amplifier. Diodes belonging to different bridge arms are connected to the amplifier with such polarity, that, depending on the sense of bridge imbalance, one or the other diode becomes conducting, and the signal is applied to the corresponding amplifier input. The amplifier delivers the unipolar signal.
Patent DE-2527756-A1 (DE)
Title: Wet type coal classifying machine - has air feed system for input of pressurised air through bare chamber in process ing chamber
Inventor: STRAUSS WERNER
IPC: B03B5/24
Filed: 1975-06-21
Abstract: A coal classifying machine, having a fluid filled working chamber with a chamber open at the base of the working chamber through which an is intermittently fed during operation of the process, is filled with compressed air to a constant pressure before the contents are processed. Air is forced out of the lower chamber through an outlet valve into the working or processing chamber during operation., before the pulsating air flow which is bled into the system during the processing operation is actuated.
Patent DE-2527875-A1 (DE)
Title: Slip casting bench for ceramic articles - for making small quantities simultaneously
Inventor: ROBIN ANDRE
IPC: B28B1/26
Filed: 1975-06-23
Abstract: Casting bench for the ceramic industry for making soup tureens, tea-pats; vases etc., in porcelain, faience and similar materials comprises a fixed base, a chassis mounted so that it can turn on the base about a horizontal axis and bring into working position a row of work tables which carry the moulds arranged in two series symmetrical with the horizontal axis. The chassis is provided with a releasable screw mechanism for retaining the moulds when they are in the working positions. A duct for feeding slurry terminating in taps which allow slurry to be poured into the mould, and which can be raised and lowered w.r.t. the base to permit alternate relation of the chassis and filling. A trough is arranged beneath the rotatable chassis into which airplus slurry is poured after the deposition of a thick-enough layer in the moulds. Short runs of a product can be made with a minimum of manual handling, an economy of movement and fatigue and considerable flexibility in mfr. while producing normal quantity products.
Patent DE-2530553-A1 (DE)
Title: Mixer and distributor for animal foodstuffs - consists of container rotating on horizontal axis on chassis with movable side cover
Inventor: HOOPMAN ABRAHAM
IPC: B01F29/60
Filed: 1975-07-09
Abstract: The container (1) is cylindrical or drum-shaped and rotates on a horizontal axle on a chassis in guide pieces which run on wheels or rollers. A hopper extends over practically the whole length of the container, which has a corresponding opening. A sliding door closes the opening and has the same radius of curvature as the container (1). One or both sides of the container has a cover which can be moved by a linkage. An annular gap is formed between the cover and the end of the container. In the lower half of the gap is a box through which the foodstuff drops and is conveyed to conveyors. Inside the container are spiral shaped conveyor plates going round the periphery.
Patent DE-2532494-A1 (DE)
Title: Paper insulated coiling wire - has slide strip on surface helically wound round wire insulation circumference
Inventor: FLOCKE EBERHARD
IPC: H01F27/32
Filed: 1975-07-21
Abstract: The insulated coil winding conductor has paper strip or similar insulation. On its surface is provided a sliding strip (3). The latter is helically wound round the insulated conductor (1). It can be in the form of an edge (5) of the insulating tape (4). Preferably the conductor may have a profiled cross section, e.g. rectangular. The sliding strip may be of wax-like aliphatic hydrocarbon, such as paraffin or fatty acid, or their derivatives, such as a fatty acid ester whose solidifying point is approximately 50 deg. C. In production the paper tape wound into a disc is wetted in the edge region with the molten sliding substance and exposed for a short period to a hot air blast. The subsequent winding brings the slider strip on top of insulation.
Patent DE-2534327-A1 (DE)
Title: Roadside guide-rail earthward-bent end connection - in form of two-way-adaptable profiled fishplate(OE-15.12.76)
Inventor: MICHNA RUDOLF DIPL ING
IPC: E01F15/04
Filed: 1975-07-31
Abstract: The connection is for the end section of a length of guide-rail at the roadside, which is bent downwards to the ground, to prevent danger of the lance effect, normally calling for sizeable pieces, which have to be specially made for right or left hand fittings, and involving storage problems. Here the connection is made by a fishplate, pref. profiled and in angle-symmetrical shape, which can be equally well applied to right or left bends. The plate can be produced as a one-piece pressed sheet metal component. There may be reversed-symmetrical holes on both sides of the bend point for the fixing screws, so that scale-type overlapping causes two slots to be superimposed at right angles, permitting adjustment either way. Assembly on site is simple.
Patent DE-2543875-A1 (DE)
Title: Shower outlet head - hose comprises resiliently flexible diaphragm with outlet holes
Inventor: HIGGINS DAVID FEDERICK
IPC: B05B1/18
Filed: 1975-10-01
Abstract: The shower outlet head comprises a housing for the flow, therethrough of water, an outlet rose mounted at an outlet of the head, the rose comprising a resiliently flexible diaphragm having a plurality of outlet holes for water, and means for resiliently flexing the diaphragm to be changed.
Patent DE-2544462-A1 (DE)
Title: Symbolic field addressing technique - uses light pencil on display unit with line raster screen
Inventor: HEGER DIRK
IPC: G06F3/0354
Filed: 1975-10-04
Abstract: When a light spot is projected on the screen by a light pencil, phosphor points within the light spot are marked without parallax, irrespective of the tube glass thickness. Graphic symbols are made available by addressing during the process, and in the symbol fields are replaced by selectable recognition symbols. Graphic symbols blocked for addressing are replaced by blank symbols. A typical arrangement has the recognition symbol (ES) at one side of the picture tube and a lens (L) at the other, with focussing onto the light sensitive surface (LF) of a photosensor inside a transparent (R) tube.
Patent DE-2546175-A1 (DE)
Title: Silencer for water jet propulsion unit - has air duct on bottom of vessel tiltable in vertical and horizontal planes
IPC: B63H1/18
Filed: 1975-10-15
Abstract: The device for reducing noise from water-jet propulsion units comprises an air duct mounted on the bottom of the vessel to be tiltable both vertically and horizontally. It has a circular intake connecting with an air pipe leading to atmosphere and a rectangular outlet underwater, close to and upstream of the impeller of the unit. The duct main axis is vertical and that of the outlet portion at 120 deg. to the main axis. During normal running the water flow caused by the impeller draws in air, through a valve in the air pipe. After the duct outlet has been positioned for max. effect by the tilting arrangements, this valve is closed progressively to reduce the airflow to the min. compatible with the device functioning.
Patent DE-2552228-A1 (DE)
Title: Microflotation of particles from waste water using microbubbles - using liq. under pressure and avoiding agglomeration of bubbles
Inventor: CARLSSON CARL GOERAN HERBERT
IPC: B03D1/14
Filed: 1975-11-21
Abstract: Appts. for the flotation of particles from waste water by expanding a pressurised liq. in which gas is dissolved under pressure in the waste water to form microbubbles comprises a vessel with two chamber sepd. by a partition which ends at liq. level: in the second chamber are means for removing foam consisting of particles and associated microbubbles from the liq. surface, and means for removing clarified liq. On or above the bottom of the first chamber is a nozzle device for providing the pressurised liq. with a dynamic increase in pressure immediately before expansion and releasing a rapid flowing widely devergin current of the liq. into the water.
Patent DE-2552719-A1 (DE)
Title: Vacuum filter with protective gas atmosphere - having shield into which inert gas is injected with band medium
Inventor: MILLER PETER ANTHONY
IPC: B01D29/09
Filed: 1975-11-25
Abstract: Vacuum filter for materials sensitive t air has a support with a vacuum chamber connected to a vacuum pump below. A bond of filter medium is passed over the support. In order to carry out the filtration in the absence of air, a hood over the filter support is first evacuated and a neutral protective gas then introduced e.g. N2 or CO2. This is fed into the edges of the hood so that no air can seep in. If liquids or solvents with a high vapour pressure are being processed, the portion of liquid evaporated in the vacuum pump is condensed by raising its pressure and mixing it with the rest of the filtrate. It can then be removed as filtrate. The inert gas can be recycled back to the filter hood. For use with materials sensitive to air. The system has the following advantages. (1) Extends the advantages of vacuum filters to such materials having simple construction and easy accessibility, (2) gives a filter cake drying process with low use of inert gas, (3) allows the filtration with little effort of liquids with high vapour pressure without loss of liquid vapour.
Patent DE-2626724-A1 (DE)
Title: Water main primed syphon pump - has suction end of tube closed by floating ball under mains pressure, and syphon starting when mains is shut
Inventor: GREITHANNER JOSEF
IPC: F04F99/00
Filed: 1976-06-15
Abstract: The syphon pump comprises a tube which, at one end, can be connected to the water main via a valve, The other end is open and provided with a seat for a floating ball. An outlet branching off from the tube. The open end is inserted in the vessel to be emptied and the valve opened so that the mains pressure forces the ball on to its seat and the tube fills with water. When it is completely filled, the valve is closed, the ball rises and syphon action starts.