baber/WOPTO huggingface dataset:
Patent DE-2245644-A1 (DE)
Inventor: BERNEY JEAN-CLAUDE
IPC: G04C3/06
Filed: 1972-09-16
Abstract: A technique is provided for oscillation maintenance in mechanical resonators of the type actuated by electric pulses transmitted by a coil to a permanent magnet carried by the resonator or conversely, the oscillation frequency of the resonator being modified by the action of a spring repelling it elastically on both sides of its resting position. Starting from a train of chopped (contact-modulated) square-wave pulses varying according to a tempo corresponding to a pilot frequency f in such manner that, for each succeeding alternation of this latter, the pulses are divided so as to correspond alternatively to one of two energies of different levels. The voltages induced by the resonator magnet in the induction coil is compared to the aforesaid pulse train and so acts that each successive alternation of a given signal of said voltage, beyond a preset threshold, triggers the transmission to the induction coil of a maintenance energy of the value contained in the equivalent section of the pulse train. The purpose is to establish a state of synchronism between the pilot frequency f and that of the mechanical oscillation.
Patent DE-2247115-A1 (DE)
Title: Removing hydrocarbons from spent sulphuric acid catalyst - which has been used for alkylation of olefins or aromatics
Inventor: GOLDSBY ARTHUR RAYMOND
IPC: C07C2/62
Filed: 1972-09-26
Abstract: Recovering H2SO4 catalyst used for alkylation of olefins or aromatics, (a) contacting it with olefinic hydrocarbon to produce mostly dialkyl sulphate with some alkyl acid sulphate, acid-polymeric hydrocarbon complex and water (b) extracting the dialkyl sulphate from the product with a liq. hydrocarbon solvent (c) diluting the raffinate to 85-90% acidity, extracting the residual dialkyl sulphate with more solvent, (d) diluting the second raffinate to 50% H2SO4 to hydrolyse the acid sulphate to alcohol and release the polymeric hydrocarbon from the complex and finally removing the alcohol and polymeric hydrocarbon from the final acid which contains about 50% acid. The final acid may be concd. by distn.
Patent DE-2251900-A1 (DE)
Title: Metal mould for plastic foam - with removable metal mask of fluorinated polymer
IPC: B29C33/62
Filed: 1972-10-23
Abstract: The mould has a mould mask formed by a thick walled elastic insert of fluorinated ethylene/propylene copolymer, the side of the insert directed toward the material having the desired counter shape. Pref. the insert consists of a number of parts and is of PTFE and punched with a polished tool in a heated state, or of injection moulded polyfloroalkoxy material. The mask has the desired anti-adhesive props and enables the moulded plastic article to be easily removed from the mould without using mould lubricants. The mask is durable and can be used many times.
Patent DE-2256492-A1 (DE)
Title: Swivelling sweetmeats casting box - operated by hydraulic cylinder and valve through cam drive with differential feedback
Inventor: PUDERBACH GERHARD
IPC: A23G3/02
Filed: 1972-11-17
Abstract: A casting box for pouring liquid sweetmeats into continuously moving moulds in controlled in its reciprocating swivel motion by a cam. A follower rolls on the cam and actuates via a differential a hydraulic valve for a hydraulic cylinder. The latter swivels the casting box and also moves the differential to correct the position of the hydraulic valve so as to make the difference between motions of hydraulic cylinder and follower a minimum.
Patent DE-2261745-A1 (DE)
Title: Substd dibenzo (furans and thiophenes) - used as antiphlogistics antipyretics and analgesics
Inventor: WILD ALBRECHT DR
IPC: C07D307/91
Filed: 1972-12-16
Abstract: Title cpds. are of formula (I): (where X = CHR1R2, R1 = CO2H, CHO, CH2OH or a deriv. of one of these; R2 = H or 1-4 C alkyl; one R3 = H, F, Cl, Br, I, OH, NH2, NO2, CN, CF3, or alkyl, alkoxy, alkanoyl, NHalkyl, N(alkyl)2, or NHacyl, all with 1-4C, the other = H, and Y = O or S. (I) are prepd. (a) from (I) (X is not = CHR1R2) by converting X to CHR1R2; (b) from (II) by eliminating from E1 and E2 to leave -Y-; (c) from (II) where E1 = E2 = H by heating with S and Al2Cl6; (d) from (III) where G = OH or a diazonium salt by eliminating G.
Patent DE-2325500-A1 (DE)
Title: Rotating dies for planetary thread-rolling machines - bolt-feeding mechanism synchronised with number of thread starts on die
Inventor: PRUTTON EDWARD ARTHUR
IPC: B21H3/06
Filed: 1973-05-19
Abstract: In the normal operation of such machines, the bolt-blank feeding mechanism is synchronised with the rotation of the rotating roll-die and there is a precise number (a whole number) of feeding strokes per die-revolution. This practice leads to only a small number of the total thread-starts on the rotating die being used and, when these starts chip or break, the costly die is scrap. The synchronisation should be adjusted in relation to N viz. the number of thread-starts on the periphery of the rotating die, and S viz. the distance between the bolt-blanks where S is a given multiple of the peripheral distance between the thread-starts on the rotating die, and the ratio N/S is not a whole number. By this method the number of thread-starts on the rotating die which are actually used is greatly increased, thus giving much longer die-life.
Patent DE-2325673-A1 (DE)
Title: Magnetically controlled field effect transistor - contg. a magnetic semiconductive material, pref. cadmium-iron-chromium sulphide
Inventor: LUGSCHEIDER WALTER DIPL ING DR
IPC: H01L29/00
Filed: 1973-05-21
Abstract: Field effect transistor contg. a channel of a semiconductive material adjoining at its ends to an ohmic contact, a source or a drain, and having at its side a gate electrode(s) for application of the regulating potential, the gate electrode consisting either of a semiconductive material of the opposite conductivity type w.r.t. the channel and provided with an ohmic contact, or consisting of a metal which forms a Schottky barrier with the semiconductive material of the channel; is improved in that a magnetic semiconductive material is used, pref. Cd1-x FexCr2S4 (x being preferably 0.2). The action of this transistor can be controlled by application of a magnetic field which increases the conductivity of the semiconductor material. This effect is considerable; it is practically independent of the direction of the magnetic field.
Patent DE-2331399-A1 (DE)
Title: Hydraulic power measuring cylinder - ring-shaped packing of soft slippery material between piston and cylinder
Inventor: BROSA ERICH
IPC: G01L1/02
Filed: 1973-06-20
Abstract: Friction-free sealing between piston and cylinder in hydraulic power measuring cylinders is necessary for accuracy, but the problem of deformation of materials with the best slip properties arises after they have been subjected to pressure. The invention therefore has the ring-shaped packing between piston and cylinder under the pressure of an expanding ring, pref. wedge-shaped, which is under spring load. The effect is that only the thin rim of the packing is pressed against the cylinder. The expanding ring pref. has side channels or a bore to allow oil to permeate.
Patent DE-2331420-A1 (DE)
Title: Refrigerative air-dryer de humidifier - with periodic reversal of coolant flow, and air flow switched to respective condenser
Inventor: SOUTER GEORGE ROBERT
IPC: F28D1/047
Filed: 1973-06-20
Abstract: Coolant is circulated along a cct. which includes two simple spiral heat exchangers with an expansion element between them; when one spiral acts as a condenser, the other acts as an evaporator, and vice versa. Pref. the air stream always flows over both spirals, but first over the one operating as an evaporator. No defrosting cct. is needed. Flow reversal is time switch controlled, and a blower for air circulation is incorporated in the cct.
Patent DE-2340877-A1 (DE)
Title: Traffic accident warning system - has electronic transmitter and receiver with small range in conjunction with vehicle hazard warning flashers
Inventor: D ARGENT WERNER
IPC: G08G1/16
Filed: 1973-08-13
Abstract: It is proposed that each vehicle should have a fixed transmitter and a portable receiver to transmit and receive warning signals in the event of accident to avoid traffic pile ups. The transmitter would be connected to the vehicle's hazard flashers system and use the flasher impulses as transmitter impulses. The transmitter could also be connected to the vehicles pre set retard rate indicator so that it automatically began transmitting at an excessive retard rate. The transmitter could also be used as a theft warning device by wiring to the ignition circuit in such a manner that transmission would become automatic should the vehicle be started by anyone without first activating an isolating switch.
Patent DE-2353437-A1 (DE)
Title: Ethylene oxychlorination with oxygen and hydrogen chloride - purified from acetylene by catalytic hydrogenation
Inventor: LAURER PETER RUDOLF DIPL CHEM
IPC: C01B7/00
Filed: 1973-10-25
Abstract: C2H4 oxychlorination process, by heat-dissociation of 1,2-dichloroethane to vinyl chloride and HCl, separation of HCl, purification of HCl by hydrogenation of C2H2 present using a Pt metal catalyst and catalytic reaction of purified HCl with C2H4 and O2 to 1,2-dichloroethane, takes place by effecting hydrogenation in at least 2 consecutive catalyst zones in which catalyst activity increases in prod. stream direction. Hydrogenation of C2H2 in HCl can take place at space flow velocities >5000 (7000-15000) vol. gas/vol. catalyst/hr. without C black deposition on catalyst; high flow velocities allow use of less catalyst. In 1st zone catalyst is sufficiently active to hydrogenate most of C2H2 but not active enough to decompose C2H2 under C black formation. In subsequent zone, catalyst is so active that remaining C2H2 is completely hydrogenated.
Patent DE-2354798-A1 (DE)
Title: I.c. engine cylinder head expansion gap - expansion gap has protective arched cover to stop carbon ingress
Inventor: LEITGEB WALTER DIPL-ING
IPC: F02F1/24
Filed: 1973-11-02
Abstract: The cylinder head face is provided with a thermal expansion gap in the area where it makes contact with the cylinder liner collar. In order to prevent carbon from entering the gap and impairing the gap's efficiency, a protective cover is provided which is arched so that the gas forces on one side will acts as a pressure force and any expansion movement of the gap will cause simply an alternation to the arch radius. The expansion gap could extend as far as the cylinder head cooling chamber since the cover would act as a seal.
Patent DE-2364667-A1 (DE)
Title: Domestic stove for building in with kitchen furniture - has control knobs flush with front and sliding out
Inventor: SCHEMBERA FRIEDRICH
IPC: F24C7/08
Filed: 1973-12-24
Abstract: The oven has a flush control panel. Each rotary control switch has a projecting stem and the handle slides over this. When not in use it is pushed in so as to be flush with the control panel and is latched in place by a spring clip which engages in a recess in the handle. For operation the handle is pulled out against the spring clip and once clear of it is held in the withdrawn position by a coil spring. The handle slides over the projecting stem of the switch but rotates with it. In the flush position it operates a micro switch which disconnects the control switch so that the handle must be pulled out to work the control.
Patent DE-2407642-A1 (DE)
Title: Composite wood chip beam - with fibre oriented adhesive bonded chip layers
Inventor: CASSELBRANT SVEN GUSTAV
IPC: B27N3/10
Filed: 1974-02-18
Abstract: Wooden beam constructed from wood chips adhesive bonded under pressure, comprising three superimposed layers extending over the whole length, the two outer layers consisting predominantly of chips having their fibres mainly oriented in the axial direction of the beam and a central layer in which the major portion of the chips have their fibres oriented in the vertical plane of the beam.
Patent DE-2414299-A1 (DE)
Title: Vehicle fuel consumption measuring device - meter has two slide bars, one for speed other for proportioning
Inventor: LATSCH REINHARD DR
IPC: G01F9/02
Filed: 1974-03-25
Abstract: The meter gives a continuous display of fuel consumption of i.e. engine. Position of a proportioning slide is the measure for the quantity of fuel supplied to the engine per unit time. The slide linearly varies the fuel measuring out valve in the engine fuel supply pipe. Its pressure difference is held constant by differential pressure valves. Transmission lever system transmits the fuel consumption to a meter together with the vehicle speed given by a speedometer. The meter forms the quotient of the fuel consumption by the speed and displays it on a scale. The meter has two slide bars at right angles to each other. One is moved by the proportioning slide, and the other in accordance with the vehicle speed.
Patent DE-2431297-A1 (DE)
Title: Antidiarrhoeal beta-galactosidase - by cultivating Aspergillus oryzae in nutrient medium
Inventor: KIUCHI AKIRA
IPC: C12N9/38
Filed: 1974-06-27
Abstract: beta-Galactosidase (I) is prepd. by culturing Aspergillus oryzae ATCC 20423 aerobically in a nutrient medium at 20-45 deg C and then recovering the (I). Acid-active, acid-stable (I) is obtained in high yield and it is esp. useful for prefenting vomitting or diarrhoea cause by lactose-contg. diets in subjects with lactose intolerance or (I) deficiency.
Patent DE-2435506-A1 (DE)
Title: Pyrotechnic cool gas generation for filling an air cushion - using gas oxidisers and coolants
Inventor: HAMILTON BRIAN KEITH
IPC: F42B3/04
Filed: 1974-07-24
Abstract: Gas generation for vehicle safety bag comprises (a) burning propellant grain to generate gas, (b) passing gas through bed of oxidiser and coolant (c) passing over heat exchange surface to cool further (d) treating with further coolant and (e) directing into bag. Coolant in each case is pref. MgCO3 and/or Na2CO3. Porous oxidiser is pref. metal (per)chlorate(s). No CO is produced in bag and gas temp. is 2000 degrees F, pref. 1400 degrees F.
Patent DE-2442332-A1 (DE)
Title: Window esp. door light of plastics cast in metal frame - using temporary mould plate on one side
Inventor: MANNESCHMIDT KARL
IPC: E06B7/30
Filed: 1974-09-04
Abstract: A method of making a window from transparent thermoplastics in a metal component such as an aluminium cast window frame for use in a door consists of the following steps: closing the window opening by placing a metal closure plate tightly up against the metal frame, filling the space with granulated plastics, bheating the entire unit for the entire unit for the plastics to smelt, then cooling it until the plastics solidifies to form the window. A similar procedure is used for making a window of casting resin, but in this case heat is not required. An absolute watertight windown is produced in a very economic manner. Preliminary trimming operations to the metal and plastics at joints are not required. The temp. cycle ensures a tight connection between the plastics and the metal.
Patent DE-2443693-A1 (DE)
Title: Photocomposing machine with keyboard operated type carrier - has cylindrical rotatable type carrier with symbol font arranged on its surface
Inventor: HOLTHUSEN BERND
IPC: B41B17/04
Filed: 1974-09-12
Abstract: By rotation of the cylinder the required symbols can be successively brought into the optical ray path and thereby be transferred onto a photosensitive material. The convex surface of the cylinder is transparent and the fonts comprise film strips carrying the symbols. One font corresponds in length to that of the cylinder's circumference and is preferably mounted interchangeably on it. The length of the cylinder is approximately equal to four times the width of a font. The font cylinder is driven at a steady rotational speed and is coupled to an angle coder having 256 steps of which in each case four steps are associated to a symbol of a font.
Patent DE-2445459-A1 (DE)
Title: Ball-mill for reclaiming used foundry sand - using perforated drum surrounded by fine sieve
Inventor: HEINRICH KLAUS-JUERGEN ING GRA
IPC: B02C17/02
Filed: 1974-09-24
Abstract: Ball mill for reclaining broken foundry moulds as used sand, and sepg. lumps of metal and uncrushable clumps, using a drum driven on a horizontal axis and contg. balls, the wall of the drum being provided with small slots or holes and at least one larger slot; the drum is surrounded by a fine sieve and a device for returning coarse material to the drum via the larger slot(s), and outlets are provided for the fine sand and the lumps of metal or other material. The drum does not contain any device for the compulsory conveying of the charge from the inlet to the outlet for lumps, and a large number of small slots or holes are provided in the drum, their number decreasing from inlet to the outlet for lumps. Provides high output with crushing of the clumps of sand so that practically only the pieces of metal travel through the outlet for lumps.
Patent DE-2447375-A1 (DE)
Title: Aligning tool for water supply fittings - has housing with spirit levels and seats for spacing of fittings
Inventor: EMANUEL KARL-HEINZ
IPC: E03C1/01
Filed: 1974-10-04
Abstract: The alignment tool is used for accurate and rapid alignment of connections for supporting sanitary equipment for example taps for baths, sinks or dishwashing machines. The tool has holes (2) which are spaced at standard spacing for different connections. Two tubes (7) are provided which can be inserted by one end (7a) into the holes in the tool. The other ends of these tubes are provided with screw threads (8) on which can be connected pipe connections for bringing these connections accurately in line with the holes (2) in the tools. Spirit levels (3, 4) are provided for transverse and longitudinal alignment.
Patent DE-2447831-A1 (DE)
Title: Suspension for unsteered driving wheels - has differential and trailing arms pivoted to chassis at angle from centre
Inventor: SCHWENK KURT ING GRAD
IPC: B60K17/24
Filed: 1974-10-08
Abstract: The rear axle consists of a left and a right rigid trailing arm (1) carrying the rear wheel hubs (8, 9) at their free ends and pivoted by a flexible bush (5) to the rear sub frame (2). The two trailing arms are joined to each other near their pivot points by a rigid cross strut (4) whose centre section becomes the differential gear housing (3). The trailing arms and the cross member are reinforced by a stiffening plate (48) close to the pivot point. The wheel drive half shafts (7) bisect at the differential centre line. The drive wheels up and down motion is transferred to the half shafts and their drive pinions (35, 36) which ride on their corresponding gear wheels (33, 34).
Patent DE-2450849-A1 (DE)
Title: Dry battery separator of fibrous paper - made from partly saponified polyvinyl alcohol, possesses adequate strength
Inventor: OZAKA TAKEMI
IPC: H01M2/14
Filed: 1974-10-25
Abstract: Mfr. of a slim, closed-end cylindrical separator for dry batteries, comprises making the separator in one integral operation, using a fibrous paper produced from a viscous soln. of a partially saponified polyvinyl alcohol contg. a surfactant without any further after-treatment such as softening with a surfactant, then the paper is wrapped around a metal bar to which it does not tend to adhere, e.g. stainless steel, to give it its final shape. Process is simpler than conventional process, (in which fully and partially saponified polyvinyl alcohol are used to make the paper) and the paper possesses sufficient strength.
Patent DE-2452512-A1 (DE)
Title: Mine heading ventilation ducting accumulator - has inflatable sleeve with controlled air supply to act as brake and tensioner
Inventor: HOELTER HEINZ
IPC: E21F1/04
Filed: 1974-11-06
Abstract: Ventilation ducting accumulator (3) for use in mine road heading operations uses an inflatable sleeve (4) as brake in the paying out of the ducting stored in the accumulator. Preferably this braking sleeve should be held in two half shell bearings, with air supply adjusted by means of a reduction valve fitted for the purpose. The arrangement ensures that the ducting (5) is held in constant tension throughout the paying out and installation sequences during advance of the roadhead where the ducting is to form the ventilation route.
Patent DE-2459522-A1 (DE)
Title: Device for suspending loads from arches of roadway support - has two hook shaped claws embracing edges of arch profile and curved stirrup attached to claws
Inventor: QUANTE HEINRICH
IPC: E21F17/02
Filed: 1974-12-17
Abstract: Device for suspending loads from arches of underground roadway or tunnel support includes at each side of the arch a hook shaped claw embracing the edge of the arch profile. Below the arch profile is a stirrup made from a round bar steel which projects with its threaded ends through holes in flanges of the hook shaped claws and is secured to the claws by nuts. Both ends of the stirrup (18) have their bending line (20) projecting through turning points (20, 21) to which are adjoining parts of the stirrup (23, 24) by which the stirrup is brought in contact with the arch profile (1). Between the parts of the stirrup (23, 24) and the stirrup ends (35, 36) projecting through the holes in the hook shaped claws (6, 7) is provided an additional bend (33, 34) with a turning point (30, 31). The stirrup is bent outwards in its middle below the arch profile in order to provide space between its inner surface and the surface of the arch profile for a link of a load suspending chain.
Patent DE-2460660-A1 (DE)
Title: Removing polyester foil with cleansing paste - contg. strong acid, organic acid-resistant solvent, and inorganic powdered acid-resistant cpd.
Inventor: LENZ GUENTER
IPC: C11D7/08
Filed: 1974-12-20
Abstract: Cleansing paste consists of a mixt. of a strong acid, an org. acid-resistant solvent and a powdery acid-resistant inorg. cpd. (acid-resistant meansing stable to attack by strong acid at 90-35 degrees C). Used for removing polyester foils, e.g. printed advertisements, from coated metal surfaces, glass or stone slabs, quickly and without scratching or damaging surface. Pref. paste consists of a mixt. of conc. H2SO4, C2HCl3 and quartz dust, finely dispersed SiO2, SiO2 gel or gypsum.
Patent DE-2501174-A1 (DE)
Title: Prefabricated mosaic or sheet cladding for wall or floor - consists of sections fixed to elastic base
Inventor: HARBRECHT WOLFGANG
IPC: E04F13/08
Filed: 1975-01-14
Abstract: The sections (1) are firmly fixed to an elastic base (5, 5a, 10) and the gaps (6) between them are filled with an elastic filler (7). The cladding is in the form of a sheet or strip of tiles. The filler (7) and at least part of the base (5a) are made of the same elastic material. The filler (7) is sprayed, poured, or pressed into the gaps (6) between the sections. Mosaic plate or sheet cladding is therefore made possible from coating elements of the desired type. The finished product is pliable and isolates sound and heat. It can be layed on walls and rigid and resilient floors without the need of a specialist.
Patent DE-2502560-A1 (DE)
Title: Independent front wheel suspension - has wheel guiding suspension legs and rigid trailing link
Inventor: OTTO HEINZ DIPL ING
IPC: B60G21/05
Filed: 1975-01-23
Abstract: Each front wheel hub is connected to the vehicle body by a telescopic vertical strut and a trailing link (3). The trailing links are connected to their respective hubs by a ball joint (4) at one end and welded near their opposite ends to a cross member (7) having a profile designed to give a resistance to twisting. The trailing link ends are fixed as far apart as possible to the longitudinal body work bearers (6) or a suitable cross member whereby the trailing link pivot axis (9) is offset in respect to that of the railing link connecting cross member (7).