baber/WOPTO huggingface dataset:
Patent DE-2516247-A1 (DE)
Title: AC motor control system - has voltage and frequency variable converter employing several triodes
Inventor: MATSUDA YASUO
IPC: H02P23/26
Filed: 1975-04-14
Abstract: The control system has a switching control network which supplies the control signals for each of the triodes and an oscillator for voltage regulation, for control of the switching phase of the diodes via the latter network. The output voltage of the converter is supplied to a voltage monitor with a current monitor for the output current from the converter, and a phase monitor detects the phase difference between the output voltage signal for controlling the frequency of the voltage regulating oscillator in conjunction with a signal denoting the required power factor.
Patent DE-2522158-A1 (DE)
Title: Lifting rig for multistorey construction - has entire floors supported by movable lattice formwork skeleton
Inventor: NAGY ISTVAN DIPL ING
IPC: E04G11/48
Filed: 1975-05-17
Abstract: The rig is for fitting formwork frames, three-dimensional lattice structures, and other auxiliary building elements, in the construction of multi-storey monolithic buildings with column supports. The floors are produced in sequence, from the top downwards. Each whole ceiling corresponds to the ground plan of the building, and is conceived as a cohesive slab structure and prefabricated all at once. This ceiling field is supported by means of a formwork skeleton which is supported at several points, movable, cohesive and of three-dimensional lattice type. Use is made of a hydraulic lifting unit, with a tubular lifting column (6) adjoining its working cylinder (3), built into a latticed frame (1) which is fitted with a grabbing head (2), enabling the lifting column to be set in any desired position, but at the same time preventing it from sliding back. No elaborate scaffolding is needed.
Patent DE-2526870-A1 (DE)
Title: Computer controlled resistance welding ring - has variable energy input proportional to resistance change of welding spot
Inventor: HOESCHELER HANS ING GRAD
IPC: B23K11/25
Filed: 1975-06-16
Abstract: A resistance welding ring is equipped with a computer as the desired value setter which receives signals from sensors which represent the duration and the total energy of a spot weld and the number of the half-waves already counted during a weld. The computer shapes the energy input for a weld as a function of time in accordance with a flat-lying S-shaped curve which represents the resistance change of a welding spot as a function of the time. This eliminates the defective spot welds which may still occur if the controller keeps the energy input constant for the entire duration of a weld.
Patent DE-2527996-A1 (DE)
Title: Window frame slot milling jig - has angle iron supporting tool mounted in slide in frame corner
Inventor: KLINGLER DIETER
IPC: B23C3/30
Filed: 1975-06-24
Abstract: The milling tool and the drive are mounted on the support, which is then mounted in the corner of the window frame to be machined. A slide made in the shape of an angle iron fits on the support and is retained by strips. A drive motor for the milling cutter is mounted via hinge brackets on the slide, so that the milling cutter, which protrudes through a slot in the support, can be moved over an angle, while the slide can be moved to and front in the support. Movement of the slide is limited by adjustable stops.
Patent DE-2530689-A1 (DE)
Title: HV line transformer for TV receiver - has HV winding rectifier and multiplier components as single unit in insulating housing
Inventor: GLAUBER ENRICO DR
IPC: H02M7/10
Filed: 1975-07-09
Abstract: The high voltage line transformer for a television receiver has its high voltage winding (9), and the rectifier, and voltage multiplier components (11-16), and the insulating parts, and mechanical supports all located close together and arranged as a single unit. The rectifier and multiplier components are mounted on their circuit boards and supports in a circle concentric with the high voltage winding. The unit is enclosed by a common insulating housing (17) and has an insulating partition (10) between the high voltage winding and the rest of the components. The transformer unit is of compact design and provides a high degree of safety.
Patent DE-2533523-A1 (DE)
Inventor: HUMMEL HERBERT
IPC: G04C11/08
Filed: 1975-07-26
Abstract: Devices for synchronising mechanical oscillating systems with quartz accuracy are known, in which an actual signal is tapped from the oscillating system and compared for phase with clock pulses of a quartz oscillator. To achieve synchronisation, the electromagnetic drive torque is changed in accordance with this phase comparison. These devices are suitable only for synchronising electromagnetically driven oscillating systems, and deliver a narrow synchronisation range. In order also to synchronise mechanically driven oscillating systems with quartz accuracy, use is made according to the invention of an electromagnetic transducer (14, 15) which is independent of the drive of the oscillating system and under the control of the phase comparison exerts an additional synchronising torque on the oscillating system. The additional synchronising torque can act outside the zero crossing of the oscillating system (4) and permits a large synchronisation range. The phase-comparison stage is constructed in a particularly simple and energy-saving way as an AND gate (13). <IMAGE>
Patent DE-2539782-A1 (DE)
Title: Piston ring mounting device - has piston holder with attached clasp covering part of segment of piston ring groove
Inventor: ENGEL WERNER
IPC: B25B27/12
Filed: 1975-09-06
Abstract: A device for fitting sealing or scraper rings on pistons, consists of a piston holder (1) with a sliding part (4) attached with tapered circumference towards the piston grooves. The tapered circumference has a notch to receive the hinged end (6) of a clasp (7). The other end of the clasp has an angled extension (9) fitting into the piston ring groove (10), extending around about 1/10 of the piston circumference. The angled extension has a thickness equivalent to half the piston ring groove width. In the middle of the circumferential length of the clasp is a separating pin (11) reaching into the piston ring groove (10).
Patent DE-2540963-A1 (DE)
Title: Reducing acid-soluble cadmium content of cadmium pigments - by treatment with alkyl alkoxy silanes or alkenyl alkoxy silanes
Inventor: WOLFF DIETRICH DIPL CHEM DR
IPC: C09C1/12
Filed: 1975-09-13
Abstract: In the prepn. of Cd pigments having a reduced acid-soluble Cd content from thermally produced Cd pigment an acid or alkaline aq. suspension or press-cake of the pigments is admixed with pref. 1-10 wt.% (w.r.t. pigment) of alkyl- or alkenyl-(alkoxy)-silanes having formula X-R'-Si(OR)3 or (X-R')2Si(OR)2 (where R' is -(CH2)n- or -(CH2)n-CH=CH-; n = 1-10 and R is 1-4C alkyl). The alk(en)yl gp. is opt. substd. The silane-treated pigments are washed, filtered, dried, esp. at 120-130 degrees C, and ground. Prods. include Cd red and orange contg. 0.01%- and Cd yellow contg. 0.001% acid-soluble Cd. The pigments are water-proofed. Colour strength is improved when used in organophilic binders. Photo-oxidn. is reduced and light-stability and weatherability re improved. In an example, 100 pts. Cd red pigment having compsn. Cd(S0.7898.Se0.2344) were dispersed in 100ml. 3% H2SO4 and treated with a soln. of 7.5 pts. gamma-mercaptopropyl-trimethoxy-silane in 150 pts. 2:1 water/isopropanol. Acid-soluble Cd content was reduced from 0.14% to 0.017%.
Patent DE-2548481-A1 (DE)
Title: Aerating deep water layers - by pipe to zone of vacuum created below air injector ring inside cylinder
Inventor: STRAHM-HOTTINGER ALFRED
IPC: C02F3/22
Filed: 1975-10-29
Abstract: Deep parts of sewage/sludge mixts. in activated sludge processes or of water in deep waters where the oxygen content is low can be aerated by an air ejector ring inside a cylinder, open at one or both ends. A zone below the air outlet holder is thereby kept at a vacuum which is used to draw fluid, low in oxygen content, or a mixt. of deposited activated sludge and sewage into the aeration zone. This is a more economical process for biological sewage treatment and less liable to breakdowns than mechanical pumps or mammoth pumps. It is a safe and reliable way in waterways of encouraging the expansion of the stock of fish.
Patent DE-2551417-A1 (DE)
Title: Package vacuum sealing fork - spikes contents for short path high rate evacuation reducing disturbance of contents
Inventor: LAU PETER
IPC: B65B31/00
Filed: 1975-11-15
Abstract: Prior to vacuum sealing, a container's contents are holed with a multipronged fork. Shorter air paths through the contents, and less resistance, reduce contents' disturbance and fouling of the packing sealing faces, which occur with a rapid pressure reduction procedure. A filled liner and outer carton lie under a piston rod operated fork. The descending prongs form deaerating holes in the filling. spiking within the evacuating chamber obviates the transport risk of hole wall collapse.
Patent DE-2552640-A1 (DE)
Title: Extrusion die for thermoplastic pipe - has electrically heated mandrel with gapped supply transformer for feeding reinforcement through gap
Inventor: IWANTSCHENKO ANATOLIJ IWANOWIT
IPC: B29C48/153
Filed: 1975-11-24
Abstract: A forming head, for making reinforced thermoplastic pipes or hoses by extrusion, comprises a mandrel onto which the reinforcement is fed axially. The mandrel forms the inner member off an annular extrusion die. The mandrel has an electric heater. Current to this heater is supplied through a transformer having a prim. winding carrierd from a frame and a sec. winding carried by the mandrel. The reinforcement is fed through a gap between the two windings. The mandrel can be kept continuously at a desired temp. Output is increased 2.5-3 times compared with previous appts. Quality is also improved.
Patent DE-2559101-A1 (DE)
Title: Hydraulic single control unit clamp - has force controlling tool slide motion to ensure automatic clamping
Inventor: PFEIFFER ANTON
IPC: B23Q3/06
Filed: 1975-12-30
Abstract: The device reduces the cost of handling and eliminates the difficulties associated with chips interfering with separate clamping devices. The clamping units are permanently under the hydraulic pressure and form part of the tool slide or are directly attached to the head stock. This reduces the working cycle, ensures a free access to the workpiece and provides unhindered discharge for the metal chips. The workpiece is located by pins on supports, while clamping is provided with studs acting as pistons in the housing of the machine spindle.
Patent DE-2559468-A1 (DE)
Title: Multiple milling tool with several sets of cutters - consists of hollow spindle with peripheral penetrations carrying inward pointing cutting blades
Inventor: BERBALK HERMANN ING GRAD
IPC: B23C5/02
Filed: 1975-11-14
Abstract: The tool is designed for the simultaneous machining of several journal surfaces like those on crankshaft (K) consisting of surfaces (108, 110, 112, 114). The housing (106) encloses all four surfaces and is fitted to a hollow milling spindle by set of bolts (114). The housing has a set of peripheral penetrations (124). On both sides of the penetrations the housing is fitted inside with two sets of cutters. Cutters (116) serve for the machining of the pin (110). The other set of cutters has blades (120) or (122). Each cutter has three hardened tips of different radii and they serve for machining surfaces (108, 112 and 114). The housing (106) is provided with longitudinal grooves (118) in which the shafts of the cutters are retained by wedges. For the simultaneous machining of surfaces (130, 132, 134 and flange 136) another similarly designed housing (106) with sets of cutters is provided.
Patent DE-2603942-A1 (DE)
Title: Snap drive for contacts of circuit breaker - has motor tensioning retractable spring via reducer gear work for sudden release recoil action
Inventor: RAPP GUENTER
IPC: H01H3/30
Filed: 1976-02-03
Abstract: The snap-action drive for movable contacts of a circuit breaker has a motor driving a retractable spring via reducing gear-work. The spring engages an edge of a flywheel (2) connected to the reducer gear work (3) through a free-wheeling clutch (4). The flywheel has two pins (5,6) which can drive a linkage (8-10) connected with the movable contacts. A circuit break demand starts the motor (19). The rotation tensions a coiled spring. Further rotation moves the flywheel (2) anti-clockwise. This tensions the retractable spring. So soon as the max. tension of the latter is reached it unwinds and throws the flywheel. The pin (5) impacts the rod (8) and forces it upwards. The rod (9) is forced to the left and the switching rod is pulled out from the opposing contact via linkage rod (10).
Patent DE-2604616-A1 (DE)
Title: Transmitter preselection system in radio receiver - uses several key operated switches giving automatic release of previously operated switch
Inventor: LEHNARDT LOTHAR
IPC: H03J1/06
Filed: 1976-02-06
Abstract: Each preselector switch has allocated to it a tuning storage component and a coupled with it control element for its setting. Only one preselector switch can be operated, so that when a switch is operated, a previously operated switch is automatically released. Setting elements (5) have an edge with toothing (26), and a toothed element (25) is mechanically connected with keys (2) operating the preselector switches (3). In a switch (3) rest position (A) the corresponding toothed element (25) is in mesh with the toothing of corresponding setting element (5), and in its operated position (13) the toothed element is not mesh with the toothing.
Patent DE-2607773-A1 (DE)
Title: Combined hot water preparation and cooling system - has hot water tank dissipating excess refrigerator heat to air
Inventor: HAHN MANFRED
IPC: F25B29/00
Filed: 1976-02-26
Abstract: The combined hot water preparation and cooling arrangement operates in conjunction with a refrigerator, whose evaporator is connected to a refrigerating device. The condenser is cooled with water or air. The excess heat generated which cannot be stored in the water can be readily dissipated in the air. The condenser arrangement is held in a thermally insulated hot water bottle which carries a cooling channel operated in relation to the temp. of the water. The cooling channel is U shaped and one end of this channel has a controlled blower. This blower is operated by a switch responding to the temp. of the hot water tank.
Patent DE-2620059-A1 (DE)
Title: Simultaneous monitoring of digital and clock signals - uses gate, two stores, source of monitoring signal and alarm output
Inventor: KUEHNE FRIEDRICH DR ING
IPC: H03K5/26
Filed: 1976-05-06
Abstract: Digital and pulse signals are carried at an intersection on separate lines. The line (D1) carrying the digital signal is connected to the first input of a first store (SP1) through a gate (Tor). The line carrying the clock signal (T1) is connected to the second input of the first store (SP1), whose output is connected to the control input of the gate (Tor), and to a first input of a second store (SP2). Further inputs of both stores (SP1, SP2) are connected to a source of a monitoring signal (TO). Second store (SP2) output (A12) is the monitoring device output suitable for connection to an alarm signal generator.
Patent DE-2628866-A1 (DE)
Title: Fin-tube heat exchanger with corrugated-strip fins - has the strips secured in pairs across tube rows by clip fastenings
Inventor: SCHOELL GUENTER PROF DR ING
IPC: F28F1/32
Filed: 1976-06-26
Abstract: Fin-tube heat exchanger has tube banks crossed by banks of fins which are formed from corrugated metal strip placed edgewise on either side of the tube bank. The opposite strips are held together and in close contact with the tube wall by clips. Used for the construction of multiple-tube heat exchangers with finned tubes formed into complete block units. As well as giving increased heat exchange surface, the fin assembly imparts added strength to the complete assembly.
Patent DE-2644864-A1 (DE)
Title: High precision boring tool - has body with longitudinal recesses fitted with interchangeable rough and finishing cutters (NL130477)
Inventor: MAEV RADKO DIPL ING
IPC: B23B51/04
Filed: 1976-10-05
Abstract: The boring tool serves for accurate machining of through openings where high surface finish and accuracy to dimensions are required. It consists of a body (1) with longitudinal recesses and a centering plate (2). The plates have precision ground-surfaces as well as bearing surfaces on which rough cutting blades (4) and finishing cutting blades (5) are fitted. The centering plates (2) can be designed to accommodate either a set of rough cutting blades (4) or combination of sets of rough cutting blades and finishing cutting blades (5).
Patent DE-2648626-A1 (DE)
Title: Push button telephone keyboard with two key types only - each with three teeth of different length operating three sets of bars
Inventor: TODESCHINI SERGIO
IPC: H04M1/23
Filed: 1976-10-27
Abstract: The pushbutton telephone keyboard has each of its keys provided with three operating teeth of different lengths and operating a horizontal, a vertical and common bar. The bars are arranged in superimposed but different planes and operate the supply and selection contacts of the electronic selection control circuit. The keys are of only two types: these types differ in that the longer and shorter teeth are interchanged. The common bar lies in a plane above the horizontal bar which is in turn above the vertical bar.
Patent DE-2649644-A1 (DE)
Title: Double-sided adhesive edging strip for laying carpets - has only one protective foil included in roll of tape in dispenser
Inventor: ACKSTEINER FRITZ
IPC: A47G27/04
Filed: 1976-10-29
Abstract: The adhesive edging strip is used for laying carpets and other floor coverings. It comprises an adhesive foil which has a stronger adhesive on one side than on the other and is protected by a single protective foil (11) which is in the form of a tape roll which supports several adhesive foils (12) one behind the other and has cut outs (13) in the area of the foils. The foil (12) is preferably rectangular. The cut-outs (13) of the protective foil (11) run along the side edges of the adhesive foil but do not extend over the entire length of same but only so far that the adhesive foil is covered at the front by the entire width of the protective foil. When separating the protective foil the part between the two adhesive foils acts as the draw-tab.
Patent DE-2653456-A1 (DE)
Title: Bucket elevator for fruit - has bucket sidewalls with semicircular bottom rectangular middle and triangular top sections
Inventor: MONACELLI UMBERTO
IPC: B65G17/12
Filed: 1976-11-25
Abstract: The buckets are mounted between two chains, and the bucket sidewalls (7, 8) each have a semicircular bottom portion (10), a rectangular middle one (12), and a pointed triangular top one (13). Each sidewall is secured to the chain at the centre (11) of the semicircular portion and near the apex (14) of the triangular one. The rear wall (16, 17) of each bucket, between the sidewalls, extends to a point near the apex. Coupling to the chains can be by means of the chain link pins (3), and the discharge conveyor (22), to which the elevator delivers, can be adjustable up and down.
Patent DE-2656632-A1 (DE)
Title: Irradiation analysis of fluorescent material - includes measurement of simulated fluorescent radiation and integration over specified decay period
Inventor: HIRSCHFELD TOMAS
IPC: G01N21/64
Filed: 1976-12-14
Abstract: The material is irradiated with radiation of a wavelength to stimulate flourescence in the material and of a strength sufficient to bleach the material. Detectors pick up fluorescent emission produced during bleaching by the radiation and generate a signal with a parameter proportional to the instantaneous value of the intensity of fluorescent emission. The time interval required for the fluorescent emission to face to a predetermined fraction of its initial intensity is measured. The fluorescent emission signal is integrated over this time interval.
Patent DE-2657566-A1 (DE)
Title: Auditorium staggered partition curtain lowering mechanism - has loosely rotating rollers over short sections connected by weighted helical spring
Inventor: STASCHEIT KURT
IPC: A47H23/06
Filed: 1976-12-18
Abstract: The draw-up device is for concertina-folding partition curtains, of graduated length and lowerable onto a staggered floor surface. This involves chord rollers on a powered winding spindle, with each stage of the cords connected to the bottom edge of draw members on the curtain. The rollers (13) fitted above the shortened length curtain sections (I, II) are mounted so as to rotate loosely on the spindle (14). This is connected to them by a helical spring tensioned by a curtain weight. The number of revolutions which the fixed spring end can carry out under tension is at least as great as the number needed by the spindle to lower the rest of the curtain. No additional cord wear is involved.
Patent DE-2658366-A1 (DE)
Title: Displacement pump with two eccentric cylinders - drives one cylinder and drags other under friction, and outer cylinder has outlet valves
Inventor: SCHERTLER SIEGFRIED
IPC: F04C29/12
Filed: 1976-12-23
Abstract: Inside a housing, an inner cylinder is eccentrically arranged in a hollow cylinder. One cylinder has a radial plunger, which divides the inner chamber resulting from the eccentricity into working chambers. The two cylinders can turn about their figure axis and the cylinder axes are spatially fixed. The inner cylinder can roll away in the hollow cylinder and only one of the two cylinders can be driven from outside. This driver cylinder takes the other with it by friction. The hollow cylinder has a number of peripherally distributed gas outlet valves. The radial slides have cut-outs which allow a connection between the inside of the inner cylinder and the working chambers at corresponding positions.
Patent DE-2700408-A1 (DE)
Title: Optical system for contact printer - uses point light source with condenser lenses and screen to provide uniform illumination
Inventor: ERBE WALTER
IPC: G03B27/16
Filed: 1977-01-07
Abstract: The optical system for a contact printer overcomes the disadvantages of point source lighting. The light source (1) output is collected by condenser lenses (3, 2) so that parallel light rays pass parallel through a grid screen (4). A further lens (7) forms a real image of the light source (at8) which has been multiplied by the screen above (4). Two lower lenses (9, 10) correct the light path divergence so that the light is focussed in the plance in which the master copy (5) overlies the surface to be printed.
Patent DE-2710018-A1 (DE)
Title: Food display and vending counter - has fluorescent strip lights with refrigerant ducts incorporated in inverted U-shaped shades
Inventor: STRAUSS HELMUT
IPC: F21V29/15
Filed: 1977-03-08
Abstract: The combined vending counter and display unit for food, e.g pastries, has cooled lamp-shades (11). The arrangement obviates the deterioration of food due to the heat emitted by electric lamps. The counter has horizontal shelves (9) and a fluorescent lighting tube (12) is mounted (8, 16) to run longitudinally along each shelf soffit. The shade is of an inverted 'U' section and placed between the shelf and the lighting tube. Longitudinal ducts (21) are either built in or appended to the shade section. The ducts are integrated in the circuit of a refrigerating unit.