baber/WOPTO huggingface dataset:
Patent DE-2304152-A1 (DE)
Title: Electrolytic metal marking etchant - consists of 20% aqs sodium nitrite soln
Inventor: NASTASE DIOMID DIPL ING
IPC: B23H9/06
Filed: 1973-01-29
Abstract: An electrolytic consisting of a 20% aq. Na nitrite is used for the electrolytic marking of metal components, which is pref. done by means of an electrode made from copper with a plastic mask in front of a Cu foil with holes through which electrolyte is pumped. The equipment for mass production etching comprises pref. a tank with a workpiece cradle and two swivel arms for to etching electrode and for removal of the etched components from the holder. The etchant employed ensures secondary corrosion free etching and stress free etching.
Patent DE-2315073-A1 (DE)
Title: Hydromechanical screwdown for rolling mill stands - with play-free hydraulic drive part
Inventor: RENNEBAUM HEINRICH
IPC: B21B31/24
Filed: 1973-03-27
Abstract: The hydraulic drive for fine adjustments is effected by two racks which move on opposite sides of one of the screw-down members. The reduction of play allows fine adjustments without using components of specially high tolerances.
Patent DE-2325252-A1 (DE)
Title: Barrel for double screw extruder - with fillets connecting the cut edges of two adjacent internal cylinders
Inventor: WEBER HEINZ DIPL ING
IPC: B29C48/03
Filed: 1973-05-18
Abstract: An ordinary steel housing is bored along its length to take two inner and adjacent tubes. Two tubes are produced with hardened inner surfaces and are cut off along one edge. They are fitted into the housing with the cut sides adjacent, and a fillet is applied to the upper and lower joint areas so that the inner faces of the fillets continue the internal curvature of the tubes. Screws, let in through the housing at top and bottom, hold the fillets in position in the housing.
Patent DE-2328421-A1 (DE)
Title: Sweet water and concentrate prod by multiple vapourisers - yielding products scarcely higher in temperature than cooling water feed
Inventor: SCHWEYER ALFRED DIPL ING
IPC: C02F1/06
Filed: 1973-06-05
Abstract: The multiple vapourisher principle is used for the prodn. of sweet water and concentrate from sea water or salt water solns., and the stages working at the lowest vapourishing temp. are divided into three, with the vapour pressure on the heating side at the same level in all stages, whereas on the vapourishing side it is reduced within the temp. range between 45 degrees and 30 degrees C. By this system it is easily possible to produce distillate at about 31 degrees C with the cooling water also heated to about the same level.
Patent DE-2329897-A1 (DE)
Title: Terminals clincher feed mechanism - has ram guide pillars which control pump and actuating cylinders
Inventor: VOGEL RALPH A
IPC: B21D43/04
Filed: 1973-06-12
Abstract: The ram is guided by pillars when it moves down to clinch the terminal links in a die and the links are handled by a feeder comprising a pair of guide rails and support rails. The fluid control pressure is maintained by a sealed pump chamber located between the fixed section and the movable section while pipes connect the chamber to a cylinder. As a result, the movement of the ram is synchronized with the displacement of a piston and a feed gripper which shifts the single terminal blanks to the tool.
Patent DE-2337256-A1 (DE)
Title: Light conductor - with liq sheath and fibre core
Inventor: OGILVIE GRAEME JOHN
IPC: G02B6/10
Filed: 1973-07-21
Abstract: Light conductor comprising a fibre of a material which is transparent at the wavelength of the light to be transported as well as a liquid sheath surrounding the fibre, in which the liq. has a lower refractive index than the material of the fibre and is transparent to the light.
Patent DE-2337923-A1 (DE)
Title: Furfural and fodder additives prodn - by digestion of pentose-contg. fibrous waste products
Inventor: HAIDEGGER ERNOE DIPL-ING CHEM
IPC: A23K10/32
Filed: 1973-07-26
Abstract: The fodder additive is the residue remaining after extraction of the furfural from the digested material. The digestion is carried out in a reactor in the presence of a non-toxic water-sol. acid using superheated steam. The digestion is carried out continuously with temps. rising to 200 degrees C and at pressures up to 16 atm. The material to be digested enters the reactor with an acid content of 1.5-4. 5 kg acid equivalent/tonne alpha-cellulose content. The material is passed through the reactor at a rate of 5-17 m/hr., and the temp. is raised at a rate of 20-60 degrees/min. with superheated steam, the radial temperature gradient being kept within 10 degrees C. The acid content of the material during passage through the reactor is raised to 5-7 kg acid equivalent/tonne alpha-cellulose content. Furfural vapour is vented from the upper part of the reactor, while the residue is collected from the lower part of the reactor.
Patent DE-2339116-A1 (DE)
Title: Conversion of voltage into proportional direct current - involves using voltage dividers with resistors and operation amplifier
Inventor: BERNER HELMUT
IPC: G01R19/22
Filed: 1973-08-02
Abstract: The circuit arrangement is for transferring an alternating voltage to a resistor in an a.c. circuit and for converting it into a proportional direct voltage which can be measured by a source potential. The two poles between which the alternating voltage is obtained are connected with the source potential through two identical voltage dividery. These comprise two resistors. The potentials between the resistors are fed to the inlets of an operation amplifier which has a return resistance and its outlet is connected through a rectifier to an inlet of the operation amplifier.
Patent DE-2340031-A1 (DE)
Title: Electromechanical pulse counter - has stepping lever and resetting mechanism with two different electromagnets
Inventor: SACHSSE LOTHAR
IPC: G06M1/10
Filed: 1973-08-08
Abstract: For the counting drive and the resetting action there are two different electromagnets arranged in the same housing in a space-saving manner. One of the magnets is a hinged armature magnet with a high efficiency and the other is a pull magnet with a small magnetic resistance. The point of support and the power transmission point of the flat hinged armature if further away from its fulcrum than the fulcrum of the stepping lever driving the counting gear.
Patent DE-2348770-A1 (DE)
Title: Temperature gradient furnace - has winding divided into sections for full automatic control of heat distribution
Inventor: EIERMANN KURT DIPL PHYS DR
IPC: G05D23/22
Filed: 1973-09-28
Abstract: The furnace heating winding is divided in several sections, each with its own temperature sensor and a controller. Nominal values for the controllers are set by a compensation circuit, with nominal values for the hotest and coldest heating zone set during responding display systems during the continuous heating phase of a temperature cycle. Nominal values for intermediate zones are automatically set by voltage dividers. The display system has calibrated potentiometers, digital resistor switch combinations and/or measuring instruments in parallel with the potentiometers. The furnace is also controlled during heating up and cooling down phases by connection of a variable voltage source in opposition to the compensation voltages. Time control is provided for the continuous operation period.
Patent DE-2349188-A1 (DE)
Title: Cord winder locking device - with means for securing a helical spring against a base plate
Inventor: JASPES ERICH
IPC: B65D63/14
Filed: 1973-10-01
Abstract: Cord winder locking device has retaining arms for holding a helical spring against a plastics base plate and these holding arms have a cam extending radially between the windings of the helical spring. The base plate is pref. made of ABS plastics.
Patent DE-2349903-A1 (DE)
Title: Accurate control of soldering time for printed circuit boards - using flash-lamp bulb to indicate start of operation
Inventor: BECH HANS
IPC: H05K3/34
Filed: 1973-10-04
Abstract: The soldering bath is held at a constant temp. and used for the deposition of solder on the conductor pattern on a printed circuit board, where the conductors are dipped in the bath. The printed circuit board is provided with a hole for an electric contact of adjustable height, i.e. so it can be put on the same level as the conductors. A low-voltage source is connected both to the contact and to an indicating device which functions as soon as the contact meets the solder in the bath. The pref. device is a lamp-bulb which is switched on when current can flow from the board via the bath to the contact and thus to the lamp. Used for the mass-prodn. flow or wave soldering. In addn. to showing the start of soldering, the lamp will go out e.g. if there is any discontinuity of the wave in wave-soldering; its use means less rejects and scrap.
Patent DE-2350028-A1 (DE)
Title: Road tanker filling arrgt. - filler nozzle fits into top of dip tube fixed inside tank
Inventor: PANKOW RIGO
IPC: B67D7/42
Filed: 1973-10-05
Abstract: A road tanker filling arrangement designed to permit escape of fumes and of simple construction without requiring e.g. telescopic tubes, has a tube attached permanently between the bottom of the interior of the tank and a cup-shaped depression on the underside of the top of the top of the tank. A bracket secures the bottom of the tube, and this end of the tube has side discharge outlets. The filler head, which has side by side liquid entry and gas discharge passages, has a nozzle which fits into the cup shaped depression, and which carries a projecting sealing ring which locates against the bottom of the depression, and thus discharges directly into the top of the tube. The depression has side outlets for gas discharge, which communicate with the gas outlet passage through the filler nozzle.
Patent DE-2350964-A1 (DE)
Title: Colour TV DC HV cascade generator - has rectifiers and capacitors mounted vertically in housing and separated by partitions
Inventor: DEUTSCH PETER
IPC: H02M7/10
Filed: 1973-10-11
Abstract: The HV generator for producing a colour television D.C. high voltage consists of two series chains of capacitors interconnected by rectifier diodes to form a cascade ladder. The capacitors are arranged spacially parallel to one another the lie vertically inside the high voltage generator housing. The capacitors and diodes are formed into a W-shaped arrangement for insertion into the housing. The housing has vertical partitions to separate, at least partly, the capacitors. The housing is filled with an insulating material, such as plastics, foam, and the top is sealed by a lid. The generator is small, but the size tolerances of the capacitors are uncritical.
Patent DE-2351530-A1 (DE)
Title: Support rail for in-line terminals - uses synthetic material with hooked edges for fixing to equipment rail
Inventor: SCHLEGEL EBERHARD
IPC: H01R9/26
Filed: 1973-10-13
Abstract: The support rail for in-line terminals is made of synthetic material and has a U-shaped profile section with two opposing rest strips between which the feet of the appropriate terminals are spread out to give positive locking. The outside of the profile ends in hooks to grip the outward turned edges of a top hat section rail, so that the two rails are firmly connected. On one side of the synthetic support rail notches are cut leaving flexible teeth with hooked ends resiliently gripping the edges of the top hat section rail. The top hat section rail may be fastened to an appropriate support.
Patent DE-2352859-A1 (DE)
Title: Crude fatty acids treatment - in stripping column and enrichment columns with condensed column vapour reflux
Inventor: STAGE HERMANN DIPL-CHEM DR
IPC: C11C1/10
Filed: 1973-10-22
Abstract: Crude fatty acids are degassed, dewatered and deodorized prior to distillation by passing superheated stripping steam in a counterflow to them. The stripping steam passes through the distributor header in the dephlegmator and into an enrichment column. The column vapours which arrive at the column head are condensed, and the fatty acid phase, separated from the condensate, is recycled to the enrichment column head. This saves an additional treatment stage. It eliminates all noxious dissolved gases, the crude acid liquor and the undesirable accessory substances without loss of fatty acid.
Patent DE-2355878-A1 (DE)
Title: Tripod having centre column with tripod head - head swivelably mounted on sphere formed at top of column
Inventor: MEINUNGER HELMUT
IPC: F16M11/14
Filed: 1973-11-08
Abstract: The tripod head has a swivel housing embracing the lower half of the sphere and having an opening for a neck connecting the sphere to the adjacent end of the column. The upper end of the housing is closed by a disc secured thereto and having a frusto-conical recess engaging the top of the sphere. The disc is rotatably retained by a circlip in a recess in the underside of a cover which forms the lower part of a hinged camera support bracket. The housing is lockable to the sphere by a thumb screw.
Patent DE-2356013-A1 (DE)
Title: Hydraulically operated air compressor - uses centrifugal force of water droplets to compress air in rotating compressor
Inventor: BEDUE ABEL
IPC: F04D17/18
Filed: 1973-11-09
Abstract: The compressor has a disc carried on a shaft. The disc has a number of radial tubes open at both ends. It has a central hub with jets, one opposite each radial tube. A stationary water reservoir within the rotating central hub has openings which allow water to enter the jets at periodic intervals as the jets pass the openings. Drops of water are flung out by centrifugal force, entrain air and compress it by centrifugal action as the water air mixture passes through the radial tube. Centrifugal force keeps the water in the outer housing trough from which it returns to the central reservoir through a tube while the air bubbles pass radially inwards through a passage to the discharge pipe.
Patent DE-2363735-A1 (DE)
Title: Driver for logic switching cct. - sender and receiver gates are connected to data collecting line
Inventor: MADERITSCH MANFRED
IPC: H03K19/082
Filed: 1973-12-21
Abstract: A logic input circuit distributes binary signals applied to its signal input, to the two outputs in accordance with a control signal applied to its control input. A level converting stage retransmits these signals or stops them in accordance with a reference voltage and the logic input circuit output signals. A push-pull output stage consisting of a pair of complementary transistors connected by their collectors and controlling the logic switching circuits delivers the binary signals when the driver circuit is in its active state. Its internal resistance is high in the passive state.
Patent DE-2409131-A1 (DE)
Title: Terminal block for switchgear - has clamping screw with fluted shaft engaging between pronge of U-shaped bracket end
Inventor: LISERT JOSEF
IPC: H01R4/36
Filed: 1974-02-26
Abstract: Terminal block for switchgear installation consists of an insulated housing with rows of contact stampings in separate compartments. The clamping screw for each compartment is pushed through a hole in the top section of the contact stamping. It engages with a U-shaped bracket used for clamping and securing the end of the lead. The U-shaped bracket fits horizontally. There is a cut out in the upper limb which produces a forked end with the gap used for the passage of the screw. The shaft of the screw is fluted just below the head (8) and the prongs of the bracket will grip around the groove to act like a spring washer. The cross section of the shaft at the groove is polygonal, similarly to the shape of the opening between the prongs.
Patent DE-2417523-A1 (DE)
Title: Glass for insulating non-linear resistances - containing oxides of lead, zinc, boron, silicon and copper
Inventor: ELLIS HOWARD FRANKLIN
IPC: C03C4/16
Filed: 1974-04-10
Abstract: Glass for insulating non-linear resistories for overvoltage protection in electrical systems contains (wt. %) 41-48.0, esp 44.5 PbO, 22.5-26.5 esp 24.5 ZnO, 18.5-22.5 esp. 20.5 B2O3, 2.5-6.5 esp. 4.55 SiO2, and 4.0-8.0 esp 6.0 CuO. Has a low expansion coefficient and low m.pt.
Patent DE-2421951-A1 (DE)
Title: Complex working material for dental implants - has implanted section coated in dental ceramic with gum penetrating socket having no such coating
Inventor: KIRSCH THEODOR PROF DR DR
IPC: A61C8/00
Filed: 1974-05-07
Abstract: A working material for dental implants has its emplantation section coated with dental ceramic material whilst the portion protruding into the oral cavity is not coated with this kind of material. The metallic core of the emplant section consists of a dental alloy contain >=50 At. % of Au and/or Pt. The section implanted into the jawbone has a ridge or blade shaped cross section and may be perforated. The section penetrating the gum tissue is in the form of an internal telescope into which may be inserted the bridgework or other dental devices used.
Patent DE-2433641-A1 (DE)
Title: Condensn of vapours by direct contact with liq - flowing in thin film over perforated plate
Inventor: KUNST BERNHARD
IPC: F28B3/06
Filed: 1974-07-12
Abstract: In an appts. for condensn. of vapours by direct contact with a cold liq., e.g. water vapour and ater, the liq. flows as a thin film over an approx. horizontal perforated plate and the vapour is blown from the underside of the plate through the perforations of the liq. film. The appts. may be used in single stage for condensn. of steam from turbines and steam jet vacuum pumps, and in multistage as heat exchangers, esp. for vacuum cooling of process liqs. A high efficiency is achieved with a comparatively small column height; the equipment is simple to construct.
Patent DE-2437532-A1 (DE)
Title: Sun-screen holder bars behind glass panes - with lamellar sheet insertable into slits and held by protrusions and stem projections
Inventor: HOPF WILFRIED
IPC: E06B9/28
Filed: 1974-08-03
Abstract: In this assembly for holder bars (1) on sun-screens, for installation behind panes of glass, and esp. on the stream-lined windows of small vehicles, the lamellar sheet is inserted from the rear side, or sideways, into the slit apertures (2-6) on the bar. When it is in position the protuberances (2a, 4a) on the holder slits (2, 4, 5) and the stem projections (2b, 4b) check any tendency for the lamellar sheets to fall out towards the rear. Inside the slits the lamellar sheets may be brought under tension by application of the stems to the outwards protuberances (EX) on the sheets. The stem projections may be locked into a hollow or a hole in the lamellar sheet.
Patent DE-2442171-A1 (DE)
Title: Bonding cathode terminal in electrolytic condenser prodn - using paste of graphite, metal powder and polymeric binder, for rapid result
Inventor: BUB HUBERTUS
IPC: H01G9/042
Filed: 1974-09-03
Abstract: In the prodn. of an electrolytic capacitor, in which a valve metal body with a dielectric and a semiconductor coating is dipped in a viscous suspension of a conducting material and a compatible hardening binder for contacting the semiconductor coating and a cathode terminal, with its end on or near the semiconductor coating, as in Parent Patent DT-2243503, the suspension used consists of a paste of graphite, a metal powder, which is a good conductor, a solvent and a polymeric binder, e.g. polyvinylpyrrolidone, polyvinyl acetate, PVC etc. The paste pref. has the compsn. 5-20% graphite, 20-40% powder, e.g. Ag, Cu, 50-70% solvent, e.g. water, alcohol etc., and 5-20% binder, w.r.t. dry substance.
Patent DE-2450326-A1 (DE)
Title: Toy scissors with two symmetrical pivoted blades - are provided with tip protectors for preventing injury by sharp tips
Inventor: MUELLER ADOLF
IPC: B26B13/06
Filed: 1974-10-23
Abstract: The toy scissors have two symmetrical blades provided with features preventing injury from sharp tips. The scissors are used for cutting paper at e.g. nursery schools. The rounded tips of the scissor blades (2) are bent outwards in relation to the scissors longitudinal axis. The tips can be formed by bending of the scissor blades. Alternatively, the scissor tips can be formed by fastening metal plates of any shape to the tips of the blade. In another version the scissor tips can be covered with plastic caps.
Patent DE-2451227-A1 (DE)
Title: Roller shutter mounting with nonreturn device - has springs for roller and clamping wedge ensuring certain idling angle
Inventor: BAEUERLE WOLFGANG
IPC: E06B9/86
Filed: 1974-10-29
Abstract: The roller shutter roller mechanism has automatic arrangement for preventing reverse movement. This arrangement prevents lifting of the roller shutter and hence it forms appreciable obstruction to breaking and entering. The belt pulley on the roller shutter roll is provided with a carrier pin and with compression springs. The clamping rollers are arranged, in conjunction with the carrier so that the belt roller has an idling rotation angle and the belt pulley is connected to the carrier. The compression springs are arranged between the clamping rollers and the clamping wedge. These springs provide the idling angle of the belt pulley relative to the belt.
Patent DE-2452051-A1 (DE)
Title: Equipment for lining up sheets in rotating printing machine - has number of transport belts with guide rollers pivotably mounted in transport plane
Inventor: FISCHER HERMANN
IPC: B65H9/16
Filed: 1974-11-02
Abstract: The equipment is used for lining up sheets moving to front mark in rotating printing machine and is fitted with a large number of transport belts which are driven in the direction of the sheet movement. The equipment includes guide rollers (14, 15) for the transport belts (6) which are pivotably mounted in the transport plane. The guide rollers (14, 15) of the transport belts (6) are located on a frame (18) pivotably mounted on an axis (17) of a feed table (7). A feed plate (13) is attached to the feed table (7) and is provided with side marks (11).
Patent DE-2458591-A1 (DE)
Title: Central store for recording media - distributed over independent storage units having coding elements
Inventor: CLAUSS GUENTER DIPL ING
IPC: G06K17/00
Filed: 1974-12-11
Abstract: One or more probes, especially for microfiches, are provided for the coding elements according to the storage unit arrangement. The system of strogae units and probes is movable relatively. The storage units are supported movably on or in guide elements fixed to the base or housing over their entire length. The probes are movable parallel thereto laterally or in suspended form or resting thereon.
Patent DE-2506463-A1 (DE)
Title: Closing slots of cardboard boxes - with wetted adhesive strip placed over slot and in selected position pressed in cardboard
Inventor: NEUBRONNER CARL
IPC: B65B51/06
Filed: 1975-02-15
Abstract: The procedure is for closing slots in boxes made from cardboard by which wetted adhesive strips are placed over the slot and in selected positions pressed in the card board. The adhesive strips (10) are perforated and the cardboard is provided with corresponding linear impressions (16). They are pressed in the cardboard at the same time as they are placed over the slots. At least one row or perforations in the adhesive strips (10) which are of a point shape is pressed in the cardboard each side of each slot.