baber/WOPTO huggingface dataset:
Patent DE-2426677-A1 (DE)
Title: Blown plastics sheet imitation paper - is produced to controlled thickness esp. through temp. compensating nozzle
Inventor: PANNENBECKER HEINRICH
IPC: B29C48/10
Filed: 1974-06-01
Abstract: A method of making plastic sheet or film having paper-like characteristics, uses pref. polyolefins as starting matl and operates by blowing a tube or film by the long-neck method. The wall thickness of the film as it leaves the annular nozzle does not appreciably exceed (esp. by not more than 20%) the square root of k/e gamma, where k is thermal conductivity in cal/cm sec.deg. C e is specific heat in cal/g deg. C and gamma is density in g/cm3. The pref. appts comprises, between the extruder and the annular nozzle outlet, a temperature-compensating device consisting of a large number of pref. spiral and/or intersecting ducts with narrow, heat conducting partitions between them.
Patent DE-2432443-A1 (DE)
Title: Cleaning particulate filter beds by backflushing - using varying flow rate to expand bed and entrain deposits
Inventor: PACIK DANIEL DIPL ING
IPC: B01D24/46
Filed: 1974-07-06
Abstract: Particles deposited in a granular filter bed are removed by backflushing the bed in such a way that an increasing flow rate at its lowest rate expands the bed and entrains the solid particles of impurities while at its greatest rate, it turns the granules into a fluidised bed. The lowest rate should be just above the expansion velocity of the granules and the highest rate just below the entrainment velocity. The backflushing is halted as soon as the impuritity content of the outflowing liquor is about constant. The backflushing is carried out with the normal liquid feed to the filter or if water is being filtered, then water is used. Improves the rate of turnaround achieved when purging such beds, giving reliable, consistent cleaning and thus longer on stream lives between cleaning.
Patent DE-2437583-A1 (DE)
Title: Printer dampening unit - dampening distributor rocker carries wiper roller for direct contact with forme
Inventor: JOHNE HANS
IPC: B41F7/26
Filed: 1974-08-05
Abstract: The design allows either direct or indirect dampening of the printing forme 2 on the cylinder 1, when no alcohol is added to the medium in the latter case. The dampening fluid is fed by a metering unit 4 to the distributor 5 whose shaft 6 supports the two-arm rocker 7 which holds a lever 8 with wiper roller 9 for the direct application of the medium to the forme 2. The other arm of the rocker 7 carries a rider roller 11 which transfers the dampening fluid to the ink distributing roller 12, the latter, in turn, transferring the coating to inkers 13 which supply the forme 2. The pickup system of dampening medium may include a fountain instead of the metering unit.
Patent DE-2442797-A1 (DE)
Title: Car door rotary catch lock - has spring loaded stop pawl and externally operated rotating and sliding release lever
Inventor: KLEBBA HORST ING GRAD
IPC: E05B85/24
Filed: 1974-09-06
Abstract: Thethe rotary catch-type lock is for car doors and includes a release lever in which the swivel seating of one end is connected to the safety catch by a direct rotary joint in such a way that obviates any sliding movements between these parts. The swivel axis is paralle to a stop disc (3), a closing latch (10) and a securing lever (15) and also to the axis of a rotary linkage (16). The release lever (14) with its side edge facing away from the closing latch lies on a guide forming a one sided support (20).
Patent DE-2448186-A1 (DE)
Title: Heat sink for semiconductor valve - contacts valves electrodes on its planar surface, its plate-shaped body serving as conductor
Inventor: POHL FRIEDRICH ING
IPC: H01L23/473
Filed: 1974-10-09
Abstract: The cooling device for several semiconductor valves, such as thyristors in rectifying assemblies, is intended for arrangements in which lossy powers appear in individual valves or valve groups up to a maximum, e.g. in pole changing d.c. devices or a.c. circuit with interchangeable load. The semiconductor valves are formed by disc cells whose front faces form the electrodes. These front faces rest against counter surfaces of plate-shaped cooling bodies, serving simultaneously as current conductors, thus forming simultaneously heat transfer and electric contact elements. The individual cooling elements are rated for the sum of possible, simultaneously appearing lossy power.
Patent DE-2449082-A1 (DE)
Title: Bag production method using synthetic fibre - uses bag material with melted polyethylene being introduced and then pressure cooled
IPC: B31B19/60
Filed: 1974-10-15
Abstract: Bag production comprises a method from a cylindrical net-shaped bag material consisting of synthetic fibres or a plastic resin. A flexible plate of a length corresponding to the depth of the bag being produced and of a width equal to it's circumference it introduced so that it overlaps with the area forming the bag opening. Melted polyethylene resin in the form of one or more threads or strips is then applied over part of the outer surface of the bag immediately followed by a pressure cooling process during which the synthetic fibres or the plastic resin are bedded into the polyethylene resin with the resin becoming rigid.
Patent DE-2452345-A1 (DE)
Title: Articulated arm handling device - has arm mounted on turret able to move by motor powered screw jack
Inventor: STRECK FRITZ
IPC: B25J15/00
Filed: 1974-11-05
Abstract: The handling device is a type of articulated arm mounted on a rotatable turret. The turret is attached to a base with guides which slide on the horizontal bars mounted on the fixed base. A direct current motor drives a screw jack to control the horizontal motion. The articulated arm can pivot about the shaft the motion being controlled by the screw jack. The outer end of another arm is similarly actuated by a jack and the gripping head can rotate about the vertical and the horizontal axis. Direct current motors provide the power for all the motions, the motors being controlled from a programming device fitted to the arm.
Patent DE-2456008-A1 (DE)
Title: Injection moulding press - with mould plates operated by carrier rotating at right angles to closure direction
Inventor: NICKE HORST
IPC: B29C45/04
Filed: 1974-11-27
Abstract: An injection moulding press for thermoplastics has two moulding plates, one is fixed to a mounting platen at the nozzle end of the extruder, the other is on a carrier which moves on a guide in line with the extruder, this carrier has a bracket to hold a mould plate-carrying roller which rotates about an axis at right angles to the movement of the mounting platen, there are multiple mould plates on the ejector side equidistant from each other. Combines the advantages of the type with straight-line axially-closing mould with those where multiple mould plates are fixed to a rotating carrier.
Patent DE-2456064-A1 (DE)
Title: Convertible cooling and cooking apparatus for food - has air circulating through interchangeable slide-in heater and cooling unit
Inventor: POGGENSEE HANS-D
IPC: A47J39/00
Filed: 1974-11-27
Abstract: The convertible heat-processing and cold-processing apparatus for food and drink comprises an oven chamber (4) for the food with an air fan (10) at one end and an air shaft (5) on top. The heating (6) and/or cooling unit (8, 9) can be inserted like a drawer from the front into the shaft (5) so that the circulating air which passes through the shaft then passes through the heating or cooling unit so that it reaches the temperature required for processing the food. The heating unit can be connected to an electric circuit by a simple plug connection whilst the cooling unit can be designed filled with dry ice.
Patent DE-2456152-A1 (DE)
Title: Carbon steel of improved magnetic properties - containing small amount of silicon and very low oxygen
Inventor: EASTON ROBERT WILLIAM
IPC: C22C38/00
Filed: 1974-11-27
Abstract: The steel contains up to 0.1% C, 0.05-1% Mn, 0.02% max. S, 0.05-0.6% Si. 0.008% max N, 0.02% max O, 0.15% max. P, balance Fe and has a core loss (60 Hertz) of 4 watts/lb. in the semi processed condition and 4.5 watts/lb when fully processed, both measured at 0.025 inch thickness and 15 kgauss. When fully processed the carbon content is 0.01%. The steel is made from a base material having less than 0.1% C by adding Mn and Si, casting, hot rolling, pickling and cold rolling, with, in the case of fully processed material, decarburisation either in the molten or solid state. The steel is used for magnet laminations, partic. for low H.P. motors. Magnetic properties are superior to those of carbon steel and cost less than silicon steel.
Patent DE-2456893-A1 (DE)
Title: Memory cell information readout - facilitated by storage capacitor in feedback circuit of amplifier to increase capacity
Inventor: BASSE PAUL-WERNER VON DIPL ING
IPC: G11C11/403
Filed: 1974-12-02
Abstract: A memory with a storage capacitor in series with a selector switch does not require extensive and complicated amplifiers to read out the signal from the memory cell which, because of the very small stored charge, is also small. The selector switch AS is coupled to the bit line B. Apart from the storage capacitor SC, an amplifying module V is rranged in a feedback circuit to it. A leak resistance r may be required between the fixed potential and the input of amplifier V if the input resistance of the latter is very high. The amplifier V can be represented by an MOS transistor or by a bipolar transistor.
Patent DE-2457936-A1 (DE)
Title: Developing grid electrode for photocopier - with bias and spacing of electrode varied with time during development
Inventor: MUNTZ ERIC PHILLIP
IPC: G03G15/08
Filed: 1974-12-07
Abstract: The photocopier has a perforated metal electrode plate spaced from the charge image, and through which the toner power is applied to the image. The charge modulation on the elctrode alters the flow of toner. In order to eliminate smearing due to background charges the invention provides a cloud of toner powder at the start of the process with the bias on the electrode altered with time as the development proceeds. At the same time the spacing of the electrode from the charge image is altered gradually, in a controlled manner. The rate of change of bias, and spacing of the electrode are both controlled by a central control to ensure max. contrast copies.
Patent DE-2458656-A1 (DE)
Title: Transverse cutter for endless paper strip - laser beam cutter guided by automatic optical guide
Inventor: WERR ADOLF
IPC: B23K26/08
Filed: 1974-12-11
Abstract: A machine for cutting endless paper strip to lengths of a given size has high cutting speeds matched to high strip travel speeds and using a laser beam (6) which is moved simultaneously in the strip direction with the travelling speed of the strip vB and across it with adjustable transverse speed vQ in relation to a fixed starting point to an end point. The laser optical system (2) is guided over the paper strip (3) with automatic feedback of the laser beam (6) to the starting point (A) and with adjustable time between the end of the cut and the starting of the new cut.
Patent DE-2458712-A1 (DE)
Title: Polyphase induction electricity meter - has an adjustment device for compensation of rotating field errors in the lowest load range
Inventor: WODSCHADLO KURT
IPC: G01R11/19
Filed: 1974-12-11
Abstract: The electricity meter has two driving systems on opposite sides of a common rotor disc, with at least one movable compensation metal sheet guiding stray flux from one of the driving systems to a certain point of the disc. A rocking lever of a magnetic material is provided between one of the two driving systems and the rotor shaft. It can be moved in a plane parallel to the rotor axis, so that a lever end facing the rotor axis moves away from the rotor disc when the lever is rotated from its middle position.
Patent DE-2504080-A1 (DE)
Title: High shrinkage acrylic fibres - obtd. by steam setting after a washing process
Inventor: REINEHR ULRICH DR
IPC: D02J13/00
Filed: 1975-01-31
Abstract: Prepn. by a standard procedure of dry-spun threads and fibres from acrylonitrile polymers with 50 wt. % acrylonit rile comprises satd. steam setting of the spun matl, after undergoing a washing process at a temp. up to 100 degrees C. The fibres are treated with satd steam, if necessary under pressure, for >=30 seconds, and then stretched in a ratio of >=1:3.0 in one operation at 60-90 degrees C. The stretching can be in two stages, the first at 60-100 degrees C in a stretch ratio of 1:3.0, the second at 60-90 degrees C in a ratio of 1:4.0. High shrinkage fibres of >40% shrinkage power and fibre strength of 2-/dtex and with yarn strengths of the order of 10-12 c.N/dtex can be obtd. These fibres show a good adhesion in yarn spinning and combing and in the gill box system in comb yarn spinning. They have a solid structure free from pinholes, this giving uniform colour and gloss in finished articles.
Patent DE-2519545-A1 (DE)
Title: Liquefied gas evaporator - using immersion heating elements and thermistors for heat input and emergency control
Inventor: ABEL GRAHAM PAUL
IPC: B01D1/00
Filed: 1975-05-02
Abstract: Liquids such as liquefied CO2 are evaporated and liquid and gas are heated by banks of hairpin elements, immersed vertically downwards or horizontally in a tank. A thermistor or other sensor in the gas outlet pipe controls the heat input as a function of the temp. Another thermistor close to the heating elements cuts off the electrical supply in case of interruptions in the liquid supply or other malfunction. This heater design has a low thermal inertia and requires a min. of heat for the transfer of the required heat. It can readily be supplied in totally enclosed or flameproof versions and provides all required safety features.
Patent DE-2521007-A1 (DE)
Title: Flexible stem of brush handle - has spring and sleeve between brush head and handle
Inventor: KARPA GEB KRATZIN EDELGARD
IPC: B25G3/38
Filed: 1975-05-12
Abstract: The flexible stem or handle anchoring device is particularly for household implements such as brooms, and is flexible in all directions. The number, hardness, shape, and length of the components of the device are selected to suit the working conditions, and they can be welded, clamped, screwed or glued into place. The broom head has a hole drilled and tapped in the upper boss, into which a threaded insert is screwed, and tightened with an ordinary screw. The insert upper end is attached by a spring and flexible sleeve to the brush handle.
Patent DE-2529041-A1 (DE)
Title: Mechanical handling transfer unit - is located on linear conveyor for supply to work stations on rotary table
Inventor: GAISER DIETER ING GRAD
IPC: B65G47/86
Filed: 1975-06-30
Abstract: An automatic transfer mechanism allows components on a linear conveyor to be extracted singly and loaded onto a work station on a rotary table. The transfer unit consists of three pairs of arms (3) located equidistant from a central shaft. A component (4) is transferred from the linear conveyor each time the transfer unit rotates through 120 degrees. Each pair of arms has fixed location jaws at the top and a pair of moving jaws at the bottom. In operation the moving faws are closed under the action of a roller follower operating against a cam track. The cam ensures opening only when the component is located directly over the rotary table workstation.
Patent DE-2531019-A1 (DE)
Title: Piston valve with two independent valve discs - has leakage chamber between valve discs to allow valve cleaning
Inventor: TUCHENHAGEN OTTO
IPC: F16K1/44
Filed: 1975-07-11
Abstract: The piston valve has a tapered valve seat (4) which locates two independent valve discs (5, 6). Each valve disc is pressed against the valve seat by an individual compression spring (12, 14). The space between the two valve discs (13) is provided to collect any leakage from the two valve seats. It is possible to clean the leakage chamber through inlet and outlet holes (8, 15) in the valve disc sprindles (9, 10). When the actuating piston is pressurized, the smaller valve disc (5) is axially displaced until it forces the larger valve disc (6) to move away from the valve seat (4). The valve is now open and the leakage chamber is still operational.
Patent DE-2531877-A1 (DE)
Title: Recliner armchair with retractable footrest - has pivoted scissor linkages causing seat to tip on footrest extension
Inventor: GRIEFAHN HANS-JOACHIM
IPC: A47C1/034
Filed: 1975-01-22
Abstract: The recliner easy chair has an adjustable seat and back rest with head support. The seat of the recliner chair has a limited swivel bearing on the frame, with a horizontal axis and guides fitted at a distance from each other on either side of the seat. The seat and the back rest (6) are rigidly connected to each other, with all the guides (7, 8) attached to the frame (1) at about the same level. The front guides are longer than the rear guides (8), and the rear guide linkage pivots forward through a larger angle than the front linkages on extending the foot rest. This causes the back of the seat to drop, causing the whole seat and back rest to tip backwards to an inclined position.
Patent DE-2533915-A1 (DE)
Title: Lid for grease container - allows insertion of screws into grease through holes in lid
Inventor: HUPPERTZ ERICH
IPC: F16N3/10
Filed: 1975-07-30
Abstract: The lid for use with grease containers facilitates the coating of machine screws prior to use. The lid consists of a plastic body (1) with a number of holes sized to allow screws to be inserted into the grease container. A bottom plate (4) has threaded holes to receive the screws. A centrally located hook (2) is provided to facilitate removal of the lid. Screws are threaded through the lid into the grease below and are then removed with a layer of grease.
Patent DE-2534232-A1 (DE)
Title: Metallised plastics film condensers embedded in (epoxide) resin - have cured polyurethane lacquer between resin and winding
Inventor: WESTERMANN WILHELM
IPC: H01G2/12
Filed: 1975-07-29
Abstract: Metallised plastics film condensers, which are embedded in resin, have a layer of cured polyurethane lacquer between the resin and the winding. The lacquer pref. is applied by vacuum impregnation and then the condenser windings are sealed or enveloped with peroxide resin under vacuum. Even very thin film of polyurethane formed by cross-linking of isocyanate resins provide high grade electrical insulation and do not impair the healing of the condensers. The use of vacuum impregnation prevents air bubbles and penetration of the epoxide resin into the winding.
Patent DE-2538725-A1 (DE)
Title: Orthopaedic mattress with sprung banded core - has elastic cylinders in spaces between springs to compensate extra pressure
Inventor: LIEBERKNECHT ARTHUR
IPC: A47C27/06
Filed: 1975-08-30
Abstract: The one piece matters has a sprung core section, and is designed for orthopaedic use. Stresses in the heaviest parts of the body may be relieved by a spring system in the interior with regions of increased stiffiness, and bands of extra reinforcement. The springs (1) are uniformly distributed throughout the interior of the mattress. In the intermediate spaces between the springs (1) flexible cylindrical stiffener inserts providing extra pressure resistance are positioned. These profile bodies (2-5) can be manufactured from a variety of synthetic materials such as plastic, foam rubber, or synthetic rubber.
Patent DE-2538958-A1 (DE)
Title: Bacteria elimination by electrical filtration - with ion generator setting up flow of air through transverse electrodes
Inventor: REINDERS HEINZ DR
IPC: A61L9/22
Filed: 1975-09-02
Abstract: Bacteria are destroyed by an assembly including an ion generator which sets up a current of air; the electrodes of the generator consist of profiles and strips linked to the opposite poles of a high tension supply. In the path of the flow of air, there is an electrofilter for the removal of any floating matter. This comprises two types of electrodes connected to the high tension supply. In the one type plates are arranged parallel to and with their cross section parallel to the air flow. The other type of electrode in the filter is formed by a wire which is tensioned between the plate electrodes across the flow of air from the generator. This is a much more effective means of filtration than is provided by mechanical filters, which offer increasing resistance to the passage of air as they become clogged, and are expensive to maintain and replace.
Patent DE-2541447-A1 (DE)
Title: Preformed refractory tiles for furnace roofs and walls - secured to furnace casing by anchors
Inventor: FLEISCHMANN WERNER
IPC: F27D1/06
Filed: 1975-09-17
Abstract: The tiles are provided with both cast steel anchors fitted into recesses in the tiles and anchors of refractory material which pass right through the tiles. The tiles are resistant to both mechanical and thermal stresses simultaneously and refractory lined furnaces using these tiles are therefore more reliable in operation due to reduced possibility of collapse of the lining.
Patent DE-2548762-A1 (DE)
Title: Conversion of digital pulses into analogue DC - uses period range related to level and surface content equivalent to imaginary pulse
Inventor: MINNER WILLY ING GRAD
IPC: H03J5/02
Filed: 1975-10-31
Abstract: Circuit for converting pulses in direct voltages, is used where it is necessary to convert digital signals into analogue signals. The pulses are fed to an integrating circuit which produced direct voltage outputs used for tuning television or radio receivers. The different pulses fed to the integrator all have a period which lies within a given range. The period range involved is related to the desired level of the direct voltage. The sum of the surface contents of the generated pulses over a given period and a given direct voltage is equal to the surface content of an imaginary pulse in the same period with a pulse duration which is related to the direct voltage and the maximum voltage. The number of pulses spread over a given period remains constant and the pulse width is chosen to respond to the value of the direct voltage.
Patent DE-2551423-A1 (DE)
Title: Temperature-controlling circulating system for moulds - with heat exchanger in line regulated according to line steam pressure
Inventor: MAYER XAVER DIPL ING
IPC: B29C35/00
Filed: 1975-11-15
Abstract: Hollow articles esp. moulds for processing plastics, are heated and/or cooled by a system with circulating heatin/cooling medium, and a heat exchanger to heat the circulating medium and through which cold water also flows by automatic control. The cold water flow is regulated according to the pressure and temp. of the circulating system and is in a pipe-line fitted wiht a pressure reduction valve and a membrane expansion chamber. The membrane is limited to a max temp. of 95 degrees C. With a temp. rise to e.g. 130 degrees C for the heat dissipator the pressure in the circulating system remains below 6 atmos. even if it is controlling a large dissipator. No scaling arises in the cold water. The system is isolated from the water mains. The system pressure is always above the steam pressure at, e.g. 130 degrees C and is thus always operationally effective.