baber/WOPTO huggingface dataset:
Patent DE-2258305-A1 (DE)
Title: Prodn. of sintered powder compacts - improved by encapsulating powder in a canister before pressing/sintering
Inventor: THUEMMLER FRITZ PROF DR
IPC: B22F3/14
Filed: 1972-11-29
Abstract: The powder is lightly compacted in a cylinder made up of several layers of graphite foil and circular end pieces. The capsule thus formed is degassed under vacuum and then heated at normal pressure to just below the sintering temp. An inert gas is then introduced into the mould and pressure applied from double-acting rams while the temp. is brought up to the correct sintering temp. The resulting compact has 95-100% of the theoretical density, is free from cracks, and does not stick to, or damage, the die parts which can be used again.
Patent DE-2263029-A1 (DE)
Title: Seasoning of timber - by steam treatment pref in presence of acrylate emulsion
IPC: F26B1/00
Filed: 1972-12-22
Abstract: The timber has holes bored lengthwise and across and is placed in a pressure vessel contg. water, and heated to 100 - 110 degrees C for 30 - 180 mins., removed and it is totally seasoned after 3 days in the open air. To improve the wood further, =5 wt.% of acrylic emulsion can be added to the water.
Patent DE-2301435-A1 (DE)
Title: Cementious filling material - contg. Portland cement, plaster, limestone and resin
Inventor: FORTMANN GEB LANGE GERTRUD DIP
IPC: C04B28/04
Filed: 1973-01-12
Abstract: Material comprises cement, plaster and/or anhydrite, limestone flour and/or chalk, quartz flour or sand; the cement being present in 20-50% by wt. of the quantity of plaster and/or anhydrite. In use the matl. is made up with water to a fluid consistency.
Patent DE-2324749-A1 (DE)
Title: Cleaning sheet for electrophotographic copiers - comprising substrate with fluorine-contg. resin coating, for removing electroscopic powder from photosensitive matl.
Inventor: SADAMATSU SHIGERU
IPC: G03G21/00
Filed: 1973-05-16
Abstract: The cleaning sheet comprises a substrate with tensile elastic modulus 0.01-10 kg/mm2 (i.e. rubber-elastic) and a surface coating layer of F-contg. resin. Cleaning effect is better than with resin or elastomer alone, so that the photosensitive matt can be reused. Powder can also be reused since it is not contaminated with bristles etc. as when a brush is used. Resin is e.g. polyvinyl(idene) fluoride or PTFE.
Patent DE-2334089-A1 (DE)
Title: Electrosensitive dry recording material - with cpd giving colour change in conducting polymer matrix
Inventor: NAKAZAWA MITSUNOBU
IPC: B41M5/20
Filed: 1973-07-04
Abstract: The material, which gives a visible pattern when an electric current is applied, comprises an organic resin base (I) and a cpd. (II) which can be reduced electrically with colour formation or colour change, (I) being a conducting polymer with specific resistance 1010 ohm-cm and (II) an organic Ag cpd., Mo or W oxide, molybdic or tungstic acid, molybdate or tungstate. No unpleasant odour or stylus wear occurs during recording and high contrast is obtd. The material contains 0.3-10 wt. pts. (II) 100 pts. (I) and is in the form of a 1-50 mu thick film, pref. on a conducting or insulating substrate.
Patent DE-2336214-A1 (DE)
Title: Vehicle fuel tank filling entry - has reduction section for use with small filling nozzles for lead-free fuel only
Inventor: EICHHORN MANFRED
IPC: B60K15/04
Filed: 1973-07-17
Abstract: A reducing section has an aperture, which just allows the insertion of the small lead-fuel nozzle. A spring-loaded cover automatically covers the aperture in the tank. When the filling nozzle is inserted, the cover is pressed into a position, to free the aperture. A funnel-shaped spaced is located in front of the aperture. The reducing section has a passage aperture, which connectes the tank to the atmosphere, to allow for ventilation. As an alternative to the hinged cover, a disc may be mounted to move inwardly against a compression spring to admit fuel when pressed by the nozzle end.
Patent DE-2339682-A1 (DE)
Title: Mechanically locked hydraulic piston - combine harvester has hydraulic piston for raising harvesting bed for transportation between sites
Inventor: RUTTE JOSEF
IPC: A01B59/00
Filed: 1973-08-04
Abstract: A piston in cylinder arrangement is used to raise the cutters of a combine harvester from a rest position on the ground through an operating position to an elevated position. A piston runs in a cylinder. The outer end of the cylinder is axially split into several fingers each having a radially inwardly pointing lip. An elastomeric sleeve surrounds the fingers and urges the lips against a stepped piston rod. A movable sleeve inside the fingers fits over a reduced diameter of the piston rod and cooperates with movement of the piston to dilate the fingers for extension of the piston and to allow the lips to lock behind a step on the piston rod in an intermediate position of the piston.
Patent DE-2340309-A1 (DE)
Title: Roof tile interior heat-insulating cladding - with walling strips formed onto foil troughs bottom edge overlapping insulating inset
IPC: E04D13/16
Filed: 1973-08-09
Abstract: This is for insulation inside roof tile surfaces with rafters and battens as in 2329372, using trough-shaped drawn foil individual elements, with their open ends towards the roofing, with heat-insulating insets fixed between the raters under the battens. The walling strips are formed onto them at the bottom edge of the downward slope, each engaging may have a vertical or angled bend, and there may be additional insets for covering gaps between insulating elements and rafters. Any water that penetrates is led away.
Patent DE-2348841-A1 (DE)
Title: Radiation hardenable coating and impregnating compsns. - contg. unsatd. polyesters having butene-3-dioxy-1,2 gps and forming scratch proof coatings
Inventor: HIMMELE WALTER DIPL CHEM DR
IPC: C08F299/04
Filed: 1973-09-28
Abstract: Radiation-hardenable coating and impregnating compsns. contain, as binder-forming components, unsatd. polyesters (I) contg. the grouping -OCH2-CH(-CH=CH2)-O- (I) are opt. mixed with olefinically unsatd. copolymerisable cpd(s) and opt. further standard additives for lacquer industry. (I) have a high hardening activity and can be hardened with a low radiation dosage to give scratch-proof hard to elastic light-coloured coatings adhering well to substrates.
Patent DE-2355733-A1 (DE)
Title: Palleted goods unstacking and transporting mechanism - has crab travelling on overhead girders between conveyor and separating mechanism
Inventor: SETH JOSEF
IPC: B65G61/00
Filed: 1973-11-08
Abstract: The mechanism is particularly for handling goods stacked in pallets, the stacks being delivered on a first conveyor. The gap between this conveyor and the separating mechanism is bridged by a supporting frame with horizontal girders, on which a crab travels. To accommodate the items handled, the crab can have mounted underneath it a transporter frame, open to the bottom, with clamping rails and grabs. The rails can be supported inside the frame on parallel levers, so that loading of the grab causes them to move towards each other. The frame can work in rigid guides in the crab, which can be moved in the horizontal direction by a crank drive, and switches can be provided to coordinate movement of conveyor, crab and rails.
Patent DE-2357215-A1 (DE)
Title: Oxidn. hair dye compsn. - contg. a pyridine deriv coupling agent, gives fast red to brown shades and is dermatologically bland
Inventor: ROSE DAVID DIPL CHEM DR
IPC: A61K8/49
Filed: 1973-11-16
Abstract: Oxidn. dyes-based hair dyeing agent contains (salts of) 2,3,4,6-tetra-amino-pyridine as the developer and couplers usually used in dyeing hair. The developer produces a large variety of fast, very intensive shades, is water-sol. and is storage-stable and dermatologically innocuous.
Patent DE-2365642-A1 (DE)
Title: Waterjet boat propulsion - with compressed air forced into ram jet steerable under boat
Inventor: FEHRS HEINZ
IPC: B63H11/12
Filed: 1973-06-16
Abstract: A profiled ram jet is pivoted under the hull and is fed by an air line from a compressor on the boat. The compressed air is simple to produce and easy to pipe to the ram jet. It does not pollute the environment, but instead regenerates stagnant water. The jet is pivotted for steering. A thrust deflector can be lowered behind the jet for reverse thrust, and for braking. The reaction on the thrust deflector pulls the stern down for added braking. Wherever possible exhaust fumes can be added to the jet for silencing.
Patent DE-2400302-A1 (DE)
Title: Light-tight storage and transport unit for copier films - has hollow shaft in each opening mounted with radial flange
Inventor: HOCHSCHORNER WALTER
IPC: G03B27/58
Filed: 1974-01-04
Abstract: The light-tight storage and transport unit for films is a round, light-tight can with a round opening in the middle. To wind up unexposed film for use on copying and developing machines, a conventional wind up core is set in the can and fits the width and diameter of the coil of film. The can has a round opening on both sides at the midpoint, and an opening on the edge of the can is closed by two velvet rollers. A hollow shaft is in each of the two openings, and is mounted with a radial flange in a radial groove in the periphery of the opening. The shaft outer dia. matches the wind-up core and the shaft inner diameter matches the driver mandrel of the machine. The unit can be used with conventional cores without an additional groove.
Patent DE-2405153-A1 (DE)
Title: Wheel counter mechanism - of coin-operated vending machines has freely rotating units, tens, and hundreds wheels
Inventor: MENKE WILHELM
IPC: G07F9/08
Filed: 1974-02-04
Abstract: The counting wheels are arranged on a shaft and a transmission gear is provided between two adjacent wheels. On completion of a rotation of one wheel, the following wheel advances by one step. A release magnet operates an engaging lever via an intermediate lever. The engaging lever, which holds the release switch for the driving motor of the wheel counter mechanism via a release slide, is locked by the detent lever. The release slide comprises a spring and a lug, which rests in the unlocked state of the engaging lever on the tongue of the switch-off lever.
Patent DE-2415923-A1 (DE)
Title: Digital amplifier has PTC resistor as output short-circuit protection - connected in series between load and amplifier power transistor
Inventor: LARASS WOLFHARD DIPL ING
IPC: H03K17/0814
Filed: 1974-03-30
Abstract: The digital amplifier has a power transistor as its output stage supplying the load. To protect the amplifier against short-circuiting on its output side, a PTC resistor is connected in series between the power transistor and the load. The transistor, load and PTC resistor are all connected in series between the amplifier supply poles (UH), and the transistor base is connected to the amplifier output. As the current through the power transistor increases, the resistance of the PTC element also increases and limits the current to below the level that would damage the amplifier and also the transistor.
Patent DE-2419032-A1 (DE)
Title: Multi-layer asbestos-cement panels mfr. - where only one of two constituent panels is dried before final pressing
IPC: B28B11/04
Filed: 1974-04-19
Abstract: Process for heating and hardening asbestos-cement panels and similar objects, where the damp crude panels are dried and a hardenable layer applied on one or both sides opt. with an intermediate layer of adhesive; covering plates are then applied to both sides and the assembled stack subjected to heat and pressure in a press to bond all the layers together. The crude (damp) panels are at least predried in the press together with an assembly which includes a dry panel coated with the hardenable layer. The pref. stack for pressing consists of the coated dry panel, a crude panel, an intermediate damp-proof course, and possibly also layers of packing. The pref. plant includes a prodn. flow line, automatic feeding and a press. Although one dry panel is used, the second panel is still damp when placed in the press so the total drying capacity required prior to the pressing station is reduced.
Patent DE-2420669-A1 (DE)
Title: Miniature selenium rectifier prodn. - uses stack of selenium rectifier chips pressed together with intermediate connecting tags
Inventor: STRUENKMANN JOERG
IPC: H01L25/03
Filed: 1974-04-29
Abstract: The miniature selenium rectifier is produced by a process based on forming a stack of selenium rectifier chips which are held with their connecting tags and with the cast, hardenable, non-conductive casting substance under pressure required for the electric contact, until the hardening casting substance defines the position of the chips and their respective connecting tags. This arrangement maintains the desired contact pressure for electric connections without any outer pressure means. Preferably the casting substance is applied to the selenium rectifier chips prior to the stack compression. The casting substance may be introduced between the loosely clamped chips under capillary force effect. The application of the csting substance may assisted a vacuum process.
Patent DE-2426767-A1 (DE)
Title: Rectangular cigarette packet - consists of two outer covers each receiving insert with break open edge
IPC: B65D85/10
Filed: 1974-05-31
Abstract: The cigarette package has a mainly flat square shape outer cover open at one end and an insert receiving the cigarettes. Two equal covers lying symmetrical to each other, are connected along an edge adjoining a short edge with connection made into a break-open edge and with each cover taking an insert. The connection is perforated and lies between two edges parallel to the push axis. The connection has a width corresponding to double the thickness of a cover fitted with an insert. The larger opening edge after closing the flap is fitted with a grip cut-out.
Patent DE-2436303-A1 (DE)
Title: Combine harvester with cutter plate - height adjustable by means of control valve and feeler with hydraulic piston-cylinder units
Inventor: BLEINROTH WERNER
IPC: A01D41/14
Filed: 1974-07-27
Abstract: The control valve has three sections which can be moved or turned, in relation to each other. One part is connected to the chassis, one part to the feelers, and the third part to the movable intake channel or to the cutter plate fixed to it. The control valve consists of a duct in a casing with inner wall, and of two pistons moving inside it, one at least of which is hollow, and encloses the other in its cavity. The housing of the control valve is fixed to the chassis. The connection between the parts of the control valve and the feelers, and the connection between the intake duct and the cutter plate or chassis is by means of Bowden wires and/or mechanical levers incorporating devices for altering length.
Patent DE-2438138-A1 (DE)
Title: Vehicle brake wear warning mechanism - has projection on disc to strike another to transmit vibration to foot pedal
Inventor: MENZEL GUENTHER
IPC: F16D66/02
Filed: 1974-08-08
Abstract: The disc (11) is sandwiched between a friction pad (15) coupled to the hydraulic brake cylinder and a pad fixed to a floating reaction plate (14) mounted on a guide (17). The reaction plate has a projecting pad (20) and the disc has a similar projection of height 'a'. When the friction pad wear has progressed sufficiently the two projections begin to strike each other as the disc rotates when the brake is applied. The vibrating motion transmits pulsations through the cylinder and brake lines and is readily detected at the foot pedal (16').
Patent DE-2446985-A1 (DE)
Title: Stabilisation of AC voltages by in-phase corerection - cut-in of AC voltage to AC input dependent on actual value of output
Inventor: WALTER DIETER DIPL PHYS
IPC: G05F1/38
Filed: 1974-10-02
Abstract: The correcting voltages are switched on and off alternately once or several times during a half wave and symmetrically to the apex of the half wave. In one lead to the load there is the secondary winding of a correcting transformer which has two primary windings, the ends of which are supplied from intermediate taps on the transformer via parallel diodes and each of which has a centre connection lying symmetrically to the intermediate taps on the transformer via a control element. The two control elements are cut in and out alternately by a control unit, the times of each of these switches being dependent on the actual value of the output voltage.
Patent DE-2450667-A1 (DE)
Title: Glycol ether prepn. from glycols - by reacting with olefins in presence of strongly acid cation exchange catalysts
Inventor: IMAIZUMI MASAO
IPC: C07C41/00
Filed: 1974-10-25
Abstract: Catalytic glycol ethers are prepd. by reacting a glycol of formula HO-(CH2-CHR1-3)-n H (I) (where n is a +ve integer and R1 is H or alkyl) with >=1 olefin, in the presence of a strongly acid cation exchanger resin, to form glycol ethers of formula R2-O-(CH2-CHR1-OE-n R3, (II), (where R2 and R3 are each hydrocarbyl corresp. to the olefin used, or one is hydrocarbyl and the other is H). The prods. are used as solvents, and no polyglycol ether by-products are formed.
Patent DE-2459163-A1 (DE)
Title: Ferric chloride-catalysed tetrahydrofuran polymerisation - promoted by carboxylic acid anhydride and pref catalyst-removal with carbonate
Inventor: HUCHLER OTTO HERMANN DIPL CHEM
IPC: C08G65/20
Filed: 1974-12-14
Abstract: FeCl3-catalysed tetrahydrofuran polymsn. takes place in the presence of a carboxylic acid anhydride, acting as promoter, pref. at 0-70 (esp. 20-65) degrees C. terahydrofuran polymers can be converted to alpha, omega-polytetramethylene ether glycols. Process is non-polluting, cheap, sufficiently variable to allow formation of polymers having mol. wt. 500-3000. Polymer mol. wt. is inversely proportional to anhydride concn.
Patent DE-2462440-A1 (DE)
Title: Antenna for wide frequency range below 30 MHz - has conducting base plate, and antenna rods and amplifiers
Inventor: MEINKE HANS HEINRICH PROF DR
IPC: H01Q23/00
Filed: 1974-09-30
Abstract: The first antenna rod (S) is connected to the base plate (G), and another rod (D), perpendicular to it is not connected to it. An amplifier (V) has its input (1) connected to and end of the second rod (D). Its earth terminal (2) is connected to the top of the first rod (S), and its output (3) to the inner conductor of a coaxial cable passing through the first rod. The antenna has further rods (D') similar to the second rod (D), each with an amplifier (V') connected as with the amplifier (V), with outputs (3') of all amplifiers connected possibly through switches to a common receiver. At least one of the further antenna rods (D') is perpendicular to both first and second rod.
Patent DE-2501528-A1 (DE)
Title: Soldered parts of nonmagnetic material - with marked solder layer, for production of SC components have layers of different composition on each side
Inventor: WAHL HANS PETER DR
IPC: H05K3/34
Filed: 1975-01-16
Abstract: The parts to be soldered are made of nonmagnetic material and they are coated on both sides with solder layers of different composition, which are automatically oriented in a preferred direction, so that solder layers of the same composition are oriented in the same direction. Ferromagnetic material is added to one of the two solder layers in such quantity and/or arrangement, that when a magnet is applied to the component, it is held by the magnet only when the solder layer so treated faces the magnet. This system serves to mark the difference between the two solder layers, so that the parts are not inadvertently assembled the wrong way round.
Patent DE-2504819-A1 (DE)
Title: Disconnectable plug-in connectors for glass fibre bundles - have plug and socket arrangement for separate light conducting fibres
Inventor: KERSTEN RALF TH DR PHIL
IPC: G02B6/40
Filed: 1975-02-05
Abstract: The plug comprises an internal part (1) in a sleeve (3). Part (1) has at its one end a projection (4) of appropriate cross section and length to fit into the female part (16) of the socket. Rings (11) and (21) are used for holding the individual optical fibres respectively. The inner parts of the plug and socket arrangement are drilled to receive cores of the respective phaser bunches. For branching-off special light dispersion-connectors are added to the optical fibres, so that one fibre can feed two or more lines. In the ring-holes (11, 12) special inserts are provided to facilitate mating of the ends of the fibres. Cores and inner parts (1, 13) are made of conducting material.
Patent DE-2513298-A1 (DE)
Title: Automatic -drive hop-harvester - has a pick-up device for cut-off hop-bines collector, stripper-drums with attached choppers, and cleaner
Inventor: LIEPOLD ADOLF
IPC: A01D46/02
Filed: 1975-03-26
Abstract: The hop-bines are cut off at a height of between one half and a metre from the ground, and picked up by a pick-up device and conveyed by two parallel belts to stripper drums at the back of the machine. A distributor on the machine platform alternately directs the bines to right and left. The stripper drums have fingers along their circumference. Any bines still clinging to the wires are conveyed to two pressure-rollers then to a chopper which drops them onto the ground. The umbels are collected on a conveyor-belt and taken up onto rotating web-rollers. A conveyor-belt conveys stalks and umbels to intake-rollers and then to a stripper-drum where leaves and umbels are sorted by web-rollers. Any side stalks are conveyed on a transverse conveyor-belt to cutter-fan. Cleaner-belts sort out the umbels, stalks and leaves from where the umbels drop onto a transverse conveyor-belt and are taken by a second conveyor-belt to a collector beside the driver's seat.
Patent DE-2514635-A1 (DE)
Title: Cable terminal with connection for cooling water - for high voltage, high power cables for gas insulated metal clad switchgear has two parts enclosed in metal jacket
Inventor: KUHN ERNST DR
IPC: H02G15/22
Filed: 1975-04-03
Abstract: The cooling water is brought from conductor potential to earth potential. The cable terminal is divided in two functional parts, each enclosed in its own, pref, tubular metal jacket (7, 11) which forms an extension or a branch of the tubular switch gear casing (14) with which it shares the insulating gas atmosphere part consists of an insulator, a voltage controlled stress core of the cable core and terminal fittings (6) with terminals and a cooling water pipe (8) passing through itthe second part consists of a flanged insulating pipe for the cooling water, and terminal fittings (10) into which the water pipe (8) emerging from the first part is inserted for its connection with the insulating pipe.
Patent DE-2515072-A1 (DE)
Title: Injection moulding needle valves simultaneously opened - by positive interlock system preventing unequal feeding of moulds
IPC: B29C45/23
Filed: 1975-04-07
Abstract: A device for injection moulding thermoplastics comprises a number of injection nozzles, esp. each fitted with a needle closure valve, which are designed to open and close simultaneously by separate hydraulic drive units. During the opening stroke of all these hydraulic units for the needle valve, the hydraulic fluid is supplied to each unit from a separate chamber of a piston-cylinder unit which is uniquely associated with that partic. needle valve; the pistons of all these units are rigidly connected together esp. by being mounted on a common piston rod.