baber/WOPTO huggingface dataset:
Patent DE-2521374-A1 (DE)
Title: Element for draining, irrigating, ventilating and heating - with light wt. low structural height and resistance to press. and rotting
Inventor: ROSEMEIER HEINRICH WILLI DIPL
IPC: E02D31/02
Filed: 1975-05-14
Abstract: Element for drainage, irrigation, ventilation and heating of surfaces comprises two parallel plastic panels or films (1) defining between them a cavity (2) for conveying liquid or gaseous media which cannot be compressed due to the material thickness and strength, the spatial shape of the panels or films and the components which space them apart. One or both panels or films and the components which space them apart. One or both panels can be perforated (3). The panels may be spaced apart by recesses (4) formed in them, interengaging with each other in the manner of press stubs (5), and may include projections (6) which form a cavity between the element and a stable surface on which it is placed. Flat covering filter material may be bonded to the plastic panels or films, which are pref. made or polyethylene or polypropylene. There may be several elements which together form a larger surface, connected at their edges by recesses and projections or by sealing profiles.
Patent DE-2522322-A1 (DE)
Title: Filament assembly for heating gases - has four parallel helical wire filaments grouped in pairs
Inventor: HILLINGER ERICH
IPC: H05B3/16
Filed: 1975-05-20
Abstract: The filament assembly, for heating gases, consists of four helical wire filaments (2) parallel to one another and grouped into two pairs, one pair being on each side of an insulating support plate (1). Each helix is held in place against the support plate by an insulating strip (3) inside the helix itself. The four strips are parallel to the axes of the helices and are supported by transverse insulating plates (4) spaced along and at right angles to the main support plate. These transverse plates are roughly E-shaped, and the electrical supply terminals are mounted on the main support plate.
Patent DE-2529040-A1 (DE)
Title: Processing and cleaning of waste cardboard - to obtain raw cellulose for fibre manufacture and save wood cellulose
Inventor: MAJEWSKI HERBERT
IPC: D21C5/02
Filed: 1975-06-30
Abstract: Method of processing and cleaning waste cardboard is provided for industrial waste disposal plants, to obtain raw cellulose for fibre manufacture. Waste paper can be added to new paper only with certain limits, due to the short fibre length; however this is of no significance in fibre manufacture, thus allowing utilisation of a large cheap quantity of raw materials, and saving wood cellulose. The raw cellulose which is thus obtained has fewer incrustations, due to the use of brown mechanical pulp and the method of preparation. The method also requires fewer chemicals and shorter digesting times, and produces a higher output.
Patent DE-2531787-A1 (DE)
Title: Pressure transmitter for use in extruders - with compensation of transmitting fluid volume variations due to temp. fluctuation
Inventor: BROSA ERICH
IPC: G01L19/06
Filed: 1975-07-16
Abstract: A pressure transmitter, esp. for pressure measurement in extruders, has a pressure transmitting fluid such as mercury between a hot measuring point an an electronic transducer. The cylindrical diaphragm holder and the diaphragm are pref. integral with each other and made of a material with greater thermal expansion than that of a plug to which it is welded. There is pref. an annular clearance between the diaphragm holder and the sides of the plug. The capillary tube for the fluid is pressure welded at the hot end to the plug through which it passes.
Patent DE-2532556-A1 (DE)
Title: Microfilm index display mechanism - is used for finding particular microfilm frames quickly and operates by displaying addresses during film winding
Inventor: KAUFMAN BURTON
IPC: G03B21/11
Filed: 1975-07-21
Abstract: A mechanism for winding a microfilm through a projector simultaneously displays frame addresses in a readable form. The microfilm (10) is wound from one spool (12) on to another (14) through a projector unit (16) which contains a light source (30) mirror (26) lens unit (32) and screen (40). At one edge of the film are a series of marks (46) one for each frame, whilst at the opposite edge a series of address codes (44) are printed. The marks (46) are used as a clocking track, detected by means of a light source (56) sensor (48) and pulse shaping network which drives a discharge lamp (28) in such a way that an image of the current address word is thrown on to the screen (40).
Patent DE-2535458-A1 (DE)
Title: Automatic resilient connection between two parts - has recess fitted in first part with arm to engage spring into recess
Inventor: ELSNER FRITZ
IPC: F16L37/12
Filed: 1975-08-08
Abstract: The connection is used between two parts which can be pushed the one over the other, in which a union (3) with an arm (5) and a crossways nose-type projection (6) are arranged in a recess (4) of the first part (1), and the projection (6) is brought into contact with a corresponding recess (8) in the second part (2) when the two parts (1, 2) are pushed together. The union (3) with its arm (5) supports against the second part (2) and towards the side turned away from it. The union (3) supports at least with the projection side end of the fillet (5) in the recess (4) of the first part (1), and is swivelled during engagement to bring the projection (6) of the first part in engagement with the recess (8) of the second part (2).
Patent DE-2536166-A1 (DE)
Title: Copper base alloy - has good hot rollability, stress corrosion resistance and strength and bend characteristics
Inventor: SHAPIRO STANLEY
IPC: C22C9/02
Filed: 1975-08-13
Abstract: A Cu base alloy consists of 2-11% Sn, 0.01-0.3%, P, 0.2-0.8% of a transition metal selected from Cr, Zn, Ti, V and mixts. thereof, and 0.3-2.0% of Fe and/or co, the total of Fe + Co being >=0.8%, balance Cu. The alloy has a grain size 0.010 mm and contains particulate phases uniformly dispersed throughout the matrix, of which a first phase contains an Fe and/or Co-transition metal intermediate phase comprising a solid soln., and a second phase contains Fe and/or Co - transition metal phosphides. In the wrought condition the alloy has good hot rollability, stress corrosion resistance, strength properties, and bend characteristics.
Patent DE-2536936-A1 (DE)
Title: Computer controlled telephone exchange - automatically performs routine tests and checks, coder prevents subscriber operating coupling matrix
Inventor: VOIGT BERND ING GRAD
IPC: H04Q3/54
Filed: 1975-08-19
Abstract: The Computer-controlled telephone exchange relieves the service engineer of routine tests and checks by using a special device to make connection at given times. This device is associated with the coupling matrices and automatically engages and releases connections. This device has coding means that prevent a subscriber manually busying a coupling matrix.
Patent DE-2537107-A1 (DE)
Title: Ratchet brake for telephone dial mechanisms - has coil spring regulated friction drive between toothed wheel and shaft
Inventor: SCHULER ERHARD
IPC: G05G5/02
Filed: 1975-08-20
Abstract: The ratchet-brake for telephone dial centrifugal governors consists of a plastic toothed wheel with a cylindrical reinforcing ring (5). A central hollow cylinder carries a coil spring one end fo which is fixed to a guide plate, the other end being free. The guide plate upper face has claw projections. A detent plate with outer friction edges and inner slots is positioned above the guide plate. The slots engage with projections on a disc fixed to a pinion so that the detent plate is rotated with the shaft. Through rotation of the shaft, the coil spring expands or contracts according to the direction of rotation and the friction drive between the detent plate surfaces and buffers is varied to drive the toothed wheel.
Patent DE-2540013-A1 (DE)
Title: Balance mechanism with intermittently rotating indexing wheel - carrying blocking wheel acted on by blocking lever in time piece
Inventor: KUMAZAWA SHOICHIRO
IPC: G04C3/06
Filed: 1975-09-09
Abstract: The timeplace balance mechanism includes an intermittently rotating indexing wheel (11). This base a blocking wheel (13) of smaller diameter fixed to it, with a pivoted blocking lever (18) resiliently engaging the peripheral surface of the blocking wheel (13). The print of application of the blocking lever (18) on the blocking wheel (13) is pref. adjacent a line joining the pivot axis of the blocking lever and the axis of the indexing wheel (11) and blocking wheel (13). The indexing wheel (11) pref. has a number of indexing pins (12) spaced around its periphery, which cooperate with a spiral rib (7) around the surface of a drive element (6) rotating back and forth.
Patent DE-2540276-A1 (DE)
Title: Polymerisation of olefins catalysed by silicic acid xerogels - contg. chromium oxide, leaving low catalyst residues in the polymer
Inventor: MUELLER-TAMM HEINZ DIPL CHEM D
IPC: C08F10/00
Filed: 1975-09-10
Abstract: Olefin polymers are prepd. by polymerising 2-8C monoolefins at 60-100 degrees C and olefin pressures of 0.5-40 bars using a catalyst obtd. by (A) preparing a silicic acid-xerogel by (i) extracting >=60% (pref. >=90%) of the water contained in a silicic acid hydrogel contg. 10-25% (esp. 14-20%) solids (calc. as SiO2) with a 1-4C alcohol and/or 3-5C alkanone; (ii) drying the gel from (ii) at 180 degrees C/10 torr/30 mins. to contact wt. (xerogel formation); (iii) comminuting the xerogel to a dia. of 20-2000 (pref. 40-300) ; (B) admixing the xerogel with solid, finely divided chromium trioxide at 100-300 degrees C/0.001-250 torr until the xerogel takes up 0.1-10% (calc. on the xerogel and as Cr) chromium trioxide; (C) maintaining the prod. from (B) in a gas stream free from water and contg. >10 vol. % O2 at 400-1000 degrees C/10-100 mins. The hydrogel used in (A) comprises spherical, particles at dia. 1-8 mm., pref. 2-6mm. and is prepd. by (i) introducing a soln. of Na or K silicate along the length and also tangentially to a spiralling stream of an aq. inorganic acid; (ii) spraying the resulting silicic acid hydrogel into a gaseous medium dropwise; (iii) allowing the sprayed hydrogel to solidify in the gaseous medium; (iv) washing the resulting spherical hydrogel without prior ageing to remove salts. Used esp. for ethylene polymerisation. The catalyst gives high productivity, and the catalyst content of the polymer is so small that it need not be removed.
Patent DE-2541446-A1 (DE)
Title: HV on load circuit breaker - has enclosed arc quenching chamber with two flexible side walls with through contacts
Inventor: HOLLMANN FRITZ
IPC: H01H33/64
Filed: 1975-09-17
Abstract: The circuit breaker has at least one light arc quenching chamber for each pole, filled with an electronegative quenching agent, such as sulphur hexafluoride. The enclosed chamber is formed by a peripheral wall (8) and two elastic and/or flexible side walls (1, 2). The chamber contacts (3, 4) are brought through the side walls in axial cooperation, are gapless sealed in the same and firmly secured. Preferably the chamber is of flat cylindrical shape the diameter of the side walls being considerably greater than the height of the peripheral wall. The chamber may be formed in two halves whose dividing plane extends parallel to the side walls through the centre of the peripheral wall.
Patent DE-2544653-A1 (DE)
Title: Spool holder for a double twisting spindle - can be assembled outside the pot and loaded with ease
Inventor: BLEECK HEINZ
IPC: D01H1/10
Filed: 1975-10-06
Abstract: In a spool holder for a double twisting spindle, the separate threads to be twisted together are drawn overend from two spools placed one above the other in a stationary pot. Between the two spools a rotating twist flyer is fitted, the working dia. of which is greater than that of the upper supply spool. There is a first insert for assembly in the pot to receive the lower supply spool. At the lower end of the insert there is an elastically compressible support detail which engages with the tube rim of the lower spool. In its upper zone, the insert has a second support detail. A second insert carrying the upper spool is assembled on the second detail, above which there is a boss, whilst beneath it there is a bearing for the flyer. The first insert reaches at most to half the height of the upper spool and has a thread guide tube in which there is a yarn brake. The boss and the flange are in one piece, the flange supporting the insert which in turn has a flange to carry the tube of the upper spool. Coaxially with thread guide and almost touching it, there is a guide tube with a yarn brake. Makes it possible to set heavy spools easily and quickly with the min. of handwork. The inserts can be fitted into the spools and the ends drawn through the flyer, outside the pot.
Patent DE-2545232-A1 (DE)
Title: Surfboard with sloping support surface - has inflatable hull with handgrips for user lying along sloping face
Inventor: GAERTNER FRANZ
IPC: B63B35/81
Filed: 1975-10-09
Abstract: The surfboard (10) has a profiled hull (11) which turns up into a raised bows (13) with handgrips (19) on top. A sloping surface (15) from the rear of the hull supports the user in an inclined position, to keep his head out of the surf. The sloping surface extends two thirds the length of the hull. The surfboard is simple to use and provides good control, even in light breakers. Control fins (25) under the rear of the hull stabilise it. The hull can be an inflated type for lightness and storage.
Patent DE-2549070-A1 (DE)
Title: Motor vehicle window crank - has hub mounted on crank shaft with intermediate plastics washer pressed between both components
Inventor: BREITSCHWERDT WERNER DIPL ING
IPC: G05G1/12
Filed: 1975-11-03
Abstract: The window crank has a hub mounted on a crank shaft with an intermediate plastics washer pressed between both components. An intermediate layer is provided between the hub (2) and the shaft, which secures the crank (1) without play on the shaft. The intermediate layer is formed by a plastics washer which is pressed between the two components when the crank (1) is placed on the shaft. The hole diameter of the washer is smaller than that of the rounded off pin of the crank shaft. The washer is pressed over the rounded off pin before the crank is mounted and held in the groove.
Patent DE-2557133-A1 (DE)
Title: Power control for boiler plates - has heating resistor set by multipoint switch in several different power steps
Inventor: KOTSCH HEINZ
IPC: F24C15/10
Filed: 1975-12-18
Abstract: Heating energy is supplied in pulses by a power controller, and when a specified temperature is reached, a temperature sensitive switch is automatically opened. A switch preventing overheating can be provided. The heating resistor is divided in at least two parts (A,B) and one or several of them (B) are connected to the mains through the power controller (G) which can be set to a number of different powers. At least one part (A) of the heating resistor is connected directly to the mains through the temperature sensitive switch (E) set to a certain cooking temperature, together with resistors (B) allocated to the power controller (G).
Patent DE-2604605-A1 (DE)
Title: Vehicle hydraulic system bleed pump - has circulating oil pump with transparent pipeline and reservoir vent cock
Inventor: FETTIG KARL-HEINZ
IPC: F15B21/044
Filed: 1976-02-06
Abstract: The tipping lorry has its hydraulic system bled by topping it up with oil and then turning a hand wheel to and fro. This is done by a pump (9) circulating oil from the reservoir (1) through transparent pipes (12, 13, 15). One pipe (13) leads from the pump to the previous topping-up point (14) and a second (15) from the tipper valve's (16) bleeder opening back to the reservoir. A third pipe (12) runs from the reservoir to the pump and a further tube (7) ventilates the reservoir. To bleed the system, the last tube (7) is opened and the pump switched on.
Patent DE-2604741-A1 (DE)
Title: Gearing with unmatched wheel moduli - gives non reverse locking system preventing driven wheel from driving
Inventor: BELOT MICHEL
IPC: F16H35/00
Filed: 1976-02-06
Abstract: The gearing can be used irrespective of size or numbers of teeth on each gear. If the driven wheel starts to drive, the gear locks without causing formanent damage. This is achieved by making the modules of one wheel approximately 10% to 20% greater than the other. The wheel with larger modulus is selected as the driving wheel. If the smaller wheel starts to drive, the teeth lock against one another. The distance between the two wheel centres is greater than the sum of the two pitch circle radis. The teeth crowns on the smaller wheel are rounded and plated. Alternative designs have different profiles for the larger driving wheel.
Patent DE-2614974-A1 (DE)
Title: Alpha numeric marking for miniature electrical components - uses guided probe which draws sparks to mark series of dots
Inventor: TRACHMANN KLAUS-DIETER
IPC: H05K3/08
Filed: 1976-04-07
Abstract: The marker is esp. for miniature electrical components which have metallic surfaces, e.g. covers which contain a piezoelectric element. A control system (S) provides a voltage pulse between a needle shaped electrode (2) and the surface of a component (4) which is mounted in a clamp (3). The control system further supplies a pulse to a coil (15) mounted round the electrode, so that the coil will lift the electrode. When the electrode is lifted from the surface of the component, a spark is drawn and a dot is marked on the component. The control system further moves the clamp with the component relative to the electrode in a set pattern.
Patent DE-2616432-A1 (DE)
Title: Supporting device for spectacles - has wire loops in nose area, on which supporting pads can swivel
Inventor: BONONI WALTER H
IPC: G02C5/12
Filed: 1976-04-14
Abstract: The device is fastened to the lens frame and has two pads and a wire structure. A round wire loop (16) facing backward is provided on the lens frame in the nose area. It is flexible and smaller than the pad (32). Both ends (17, 18) of the loop (16) are rigidly connected with the lens frame (11) and the wire loop (16) transversal part (22, 29) has at least one double offset (31). The pad (32) has on its surface facing the lens frame (11) at least one pair of locking humps (38) holding the middle part (26) of the wire loop (26). It is open at both sides and its axis is in line with that of the wire. The pad can swivel on the wire loop transversal part over a certain angle.
Patent DE-2619604-A1 (DE)
Title: Water glass prodn. in liquid form - from siliceous fly ash and alkali metal hydroxide in aq. soln.
Inventor: JOHANSSON STIG FRITJOF
IPC: C01B33/32
Filed: 1976-05-04
Abstract: Prodn. of water glass in the liquid form from amorphous silica and an alkali metal hydroxide is improved in that fly ash from the prodn. of iron alloys and from other industries in which silica is present in furnaces is used as a source of silica. The compsn. contains (in pts. wt.): silica dust 1, alkali metal hydroxide 0.35-2.1, and water 1.65-3.6. The compsn. is mixed together and heated to 75-100 degrees C (preF. 85 degrees C) at a heating rate of 1.5-2.5 degrees C/min. The resulting liquid is cooled, pref. naturally cooled in a tank without any cooling means. Water glass having sufficient purity of technical applications is produced in a much simpler and cheaper way than by the conventional method comprising fusing crystalline SiO2 with an alkali metal hydroxide or oxide and dissolving the product in water in an autoclave. The siliceous fly ash is cheap. Consumption of energy is reduced by raising the temp. at the rate specified above.
Patent DE-2620838-A1 (DE)
Title: AC voltage amplifier modulation limit adjustment - is attained when track face with greater reflecting power of scanned points is illuminated
Inventor: LENTZE FELIX DIPL ING
IPC: G06K7/10
Filed: 1976-05-11
Abstract: The limit of the linear range of modulation of an AC voltage amplifier connected to the output of a photoelectric receiver is indicated. The intensity of illumination is adjusted to a value at which the limit is reached or which slightly falls below the limit. This happens when a track face having the greater reflecting power of the scanned points is illuminated. The value is adjusted by periodic increase and reduction. A photoelectric receiver is connected via the AC voltage amplifier to an amplitude detector circuit to which an indicator is linked.
Patent DE-2621717-A1 (DE)
Title: Perforated vibrating container - for preloading particulate moulding materials to automate control of wall thickness and/or density
Inventor: HENKE HERMANN
IPC: B27N3/14
Filed: 1976-05-15
Abstract: A device for prefilling a compression mould cavity with a particulate material, comprises a container with a perforated base which can dump material into the cavity to a level controlled by the position of base of the device above the base of the cavity. The container is mounted on (rubber) supports which allow the container to oscillate along one or more axes and/or in a rotary motion to cause the particles to pass through the perforated base. Used for filling moulds which controlled amounts and/or distributions of e.g. resin impregnated wood particles for moulding worktops, bins etc. Can be used to mould undulating profiles of constant wall thickness and/or mouldings with controlled variations in wall thickness or density. The amount of material is limited by material ceasing to flow through the base one the cavity is filled to the base of the holder, even if oscillation continues. Excess material can be removed still in the container after stopping oscillation. Control of fill distribution allows wall thickness control on sloping parts of the moulding.
Patent DE-2623794-A1 (DE)
Title: Immersion heater for rapidly heating liquids - has glass coated flat heating element in disc with curved holes
Inventor: BAUMGARTNER ERICH RUDOLF
IPC: H05B3/80
Filed: 1976-05-26
Abstract: The immersion heater rapidly heats liquids in containers and consists of a disc containing the heating element and a post at the edge of the disc containing the supply leads and a reed relay. The heating wire is enclosed in a thin layer of glass or a glass-like material (e.g. fibres) and embedded in the insulating disc (2), which may also be partly of glass or similar. The disc has curved slots (5) to allow the liquid to pass through it. The post (6) is located at the circumference of the disc and at right angles to its plane.
Patent DE-2629038-A1 (DE)
Title: Grille for all-round even cooking - has several spits mounted on common support and connected to rotary drive
Inventor: LEHMANN CLEMENS
IPC: A47J37/04
Filed: 1976-06-29
Abstract: The grills unit is provided with spits (14) rotatably mounted on a common support and connected to a drive (19, 20) by which they are turned about their own axis during rotation of the support. The spits are each connected to a chain wheel which runs down a fixed chain so that no further drive is required. The spit support can consist of a chain (5) so that the spits can be rotatably mounted on the links. The individual spits can be mounted detachably on the support so that they can be loaded with different foods without any danger of the flavours mixing.