baber/WOPTO huggingface dataset:
Patent DE-2122721-A1 (DE)
Title: Frequency division multiplex system for satellites - gives protection for signal transmission over systems with large number of channels
Inventor: HEROLD WOLF DIPL ING
IPC: H04B1/707
Filed: 1971-05-08
Abstract: The redundancy of the signals is limited by data compression and/or optimum coding; the signals are then widened to their original bandwidth by modulation of a periodic time function, and are transmitted through one of the channels; at the receiving end the channel signal is demodulated and the original signal is recovered by correlation with the time function generated at the receiving end, and synchronised; overlapping of adjacent channels due to signal widening is permissible; allocation in the transmitters of the FDM channels to the information signals is varied by a quasi-statistical jumbling system.
Patent DE-2130506-A1 (DE)
Title: Tyre spike sleeve - of sintered metal impregnated with plastics
Inventor: ZAPF GERHARD DR
IPC: B60C11/16
Filed: 1971-06-19
Abstract: A sintered hollow rivet for spikes of winter tyres has a pore volume of 15-45%. The sintered structure achieves a reduction in weight of the rivet, combined with the necessary hardness for optimum wear. A prefd. material is an Fe powder mixture contg. 1% mn and 0.6% graphite.
Patent DE-2147092-A1 (DE)
Title: Method of coating rollers
Inventor: ROWLAND LEROY J
IPC: B29C70/68
Filed: 1971-09-21
Abstract: A roller is externally coated with a thin layer of material by applying a layer of the material to the inner surface of a sheath of low friction plastics material, inserting the roller within the coated sheath, effecting relative radial movement between the roller and the layer to bond it firmly to the roller and finally removing the sheath. The relative movement may be effected by heat shrinking the sheath or by introducing a layer of material under pressure between the roller and the layer, whilst restraining the sheath from radially expanding. The sheath may be of PTFE and the applied layer is a high cost rubber and can be applied to metal or cheap rubber coated rolls. The coating is uniform in thickness and is bonded securely to the roller. High speed production can be achieved.
Patent DE-2163375-A1 (DE)
Title: Dyeing fabric widths - uniform and rapid dyeing of woven or knitted fabrics on a support tube
Inventor: KRONSBEIN CURT
IPC: D06B3/08
Filed: 1971-12-21
Abstract: Widths of woven or knitted goods are dyed on a horizontal support tube through which the dyeing liquor is conducted to pass through openings in the tube wall. The winding of textile material has a dia. many times greater than the dia. of the tube so that the material is freely suspended on the tube during the dyeing operation.
Patent DE-2200807-A1 (DE)
Title: Precipitating water-thinnable lacquers - from water circulating in spray chambers, by addition of oxalic acid
Inventor: URSEL WILLIBALD
IPC: B01D21/01
Filed: 1972-01-08
Abstract: Oxalic acid is added to the water in the pptn. of lacquer from water circulating in spray-chambers. Foam formation is avoided, without the use of an anti-foaming agent and water level in the chamber is not raised. The waste water does not become contaminated with, e.g. anti-foaming agents, and the concn. of oxalic acid is low. The acid is broken down to CO2 and H2O by atmos. O2.
Patent DE-2226038-A1 (DE)
Title: Colour stabilisation of higher (cyclo) alkyl phenols - - using metal/alkali metal
Inventor: NOTTES GUENTHER DR
IPC: C07C37/86
Filed: 1972-05-29
Abstract: A phenol which is nuclear substd. by one 8-15C (cyclo) alkyl gp. is treated with a mixt. of Fe, Ni, Co and/or Zn and an alkali. Time required for discolouration of treated phenol by light, O2 or heat is increased 10-50 x. Prods. may be distilled without discolouration, and can be used as stabilisers and antioxidants for fuel oils, greases and rubbers.
Patent DE-2238946-A1 (DE)
Title: Yarn tensioner - controls unwinding from packages
Inventor: KIMPTON WILLIAM HARRY
IPC: B65H23/06
Filed: 1972-08-08
Abstract: Yarn package carrier is rotatable on a spindle on which a pulley is freely rotatable, the pulley being wrapped by a belt to which a load is attached to brake the pulley by friction. The pulley is connected to the package by a resilient member. Specif. the load is a weight or a tension spring, and a mandrel which carries the package is connected to the pulley by a coil spring.
Patent DE-2304446-A1 (DE)
Title: Packaging laminate consisting of plastic-paper layers - by simultaneously applying oxidn-promoting agent and cooling agent to plastic layer before lamination
Inventor: ANDREUS GUNNAR
IPC: B05D1/26
Filed: 1973-01-30
Abstract: Packaging laminate consisting of a base layer of paper or fibre, and a plastic layer on >=1 side, is provided with good sealing props. on >=1 side by (a) applying an oxidn.-promoting agent for the plastic material to the side of the plastic layer which is to be placed upon the base layer, and (b) supplying a cooling agent to the side of the plastic layer to be used as sealing face. Provides a laminate having a plastic layer which is bonded strongly to the base layer, and is entirely water-proof.
Patent DE-2336961-A1 (DE)
Title: HV switchgear with contact trolley and bulkhead wall - has two interlocking flaps in wall hole to prevent hands accidental contact touching
Inventor: GETSCHMANN KARL
IPC: H02B11/24
Filed: 1973-07-20
Abstract: The switchgear has a switching trolley with protruding contact electrodes which pass through holes in a bulkhead wall to the stationary HV contacts behind the wall. Each hole is fitted with a collar containing two flaps. The first flap is pivoted from the top of the collar entrance, i.e. the end where the moving electrode enters, and the second one from the bottom of its exit. The second flap is angled so that the first flap bottom edge comes to rest against it when the moving electrode is only a third of the way through the collar. In this position the flaps can only be opened further by a large mechanical force and not by hand. As the contact moves further in, the first flap is forced up and the second down. The flaps return to their original positions when the contact electrode is removed.
Patent DE-2343086-A1 (DE)
Title: Condensation-repellant bathroom or swimming-bath tiles - laid over porous heat-insulating layer and hot-water pipes
Inventor: PFEIFFER DIETER
IPC: E04F13/08
Filed: 1973-08-25
Abstract: The combination is esp. suitable for tiling in house and hotel bathrooms and round indoor swimming-pools, and elsewhere where quantities of heated water are used, normally giving rise to damaging and disfiguring condensation. Before tiling, a layer or panelling of rigid wide-pored heat-insulating material is fixed on the wall, and the system of hot-water pipe components is added, undulating so that there is piping behind each of the tiles which are subsequently laid. Mortar filling the spaces between the undulating pipe sections forms a binding between the insulating layer and the tiles. Normal trade tiles can be used.
Patent DE-2343116-A1 (DE)
Title: Electric razor with long hair cutter - mounts long hair cutter laterally permitting its extension at right angles to cutter head plane
Inventor: ROHR JOSEPH VON
IPC: B26B19/10
Filed: 1973-08-28
Abstract: In order that the long hair cutter is not obscured by the short hair cutter when shaving in front of a mirror, the former is extendable in a direction perpendicular to the cutting edge and has a coupling which engages with the drive, and imparts a reciprocal motion to the cutter when the long hair cutter is extended. The coupling is formed by strip with a T-shaped aperture, through which passes a coupling bolt of the cutter support. A coupling nose may be used, engaging in a groove of the cutter support.
Patent DE-2344152-A1 (DE)
Title: Adjustable pulse delay method - has pulse of the same polarity derived from the front and rear flanks of the pulse to be delayed
Inventor: BECK HARALD
IPC: H03K3/033
Filed: 1973-09-01
Abstract: The derived pulse front flanks correspond to the flanks of the pulse to be delayed, and their width to the required delay time. These pulses are applied to the first input of a D-flip-flop set by this pulse train into a stable state determined by pulses to be delayed applied to its second input. Needle pulses may be derived from the pulse to be delayed front and rear flank. The needle pulses start a monostable circuit generating a pulse train whose pulse front flanks coincide with the needle pulses, and widths correspond to the required delay tim. The nondelayed pulse is differentiated and applied to a first input of an AND gate, and also inverted and differentiated and applied to its second input. Needle pulses are collected from the AND gate output.
Patent DE-2345936-A1 (DE)
Title: tyre with flexible structure - incorporating layers of short sections of reinforcement
Inventor: BACHMANN WILLI
IPC: B60C9/06
Filed: 1973-09-12
Abstract: A type has a carcase with parallel steel cords or similar, running at right angles to the circumference, and filament reinforcements running at an angle to the cords within the cords layer and from the middle of one wall to the middle of the other. These filaments consist of a number of successive sections in their fibre direction. The make-up gives a softness and flexibility to the carcase and is easy to manufacture.
Patent DE-2350154-A1 (DE)
Title: Ambulance service stretcher system - transporting patients by positioning inflating and interconnecting upper and lower member on each side
IPC: A61G1/003
Filed: 1973-10-05
Abstract: Patients are transported by arranging at least one upper and a lower inflatable element on either side and fastening them against mutual displacement and finally inflating the two upper and the two lower elements. Pref. there are two vertical longitudinal walls and crosswalls connecting them; at least one of the longitudinal walls is movable, and each includes at least two plane, rigid, parallel, inwards-facing longitudinal beams fast to the longitudinal wall and perpendicular to it, bounding an internal interspace over their whole length, and of width less than 1/2 the height of the cross-walls; and at least two inflatable elements of corresponding length, one at the upper and one at the lower side of the upper longitudinal beam, respectively bringing it to the middle of the stretcher, and lifting it vertically, when they are inflated. The patient may be supported and transported without changing the original position.
Patent DE-2351075-A1 (DE)
Title: Aq. polyesterimide dispersion prepn. from solns. - in cyclic ethers by pptn. in water, solvent removal and grinding
Inventor: POHLEMANN HEINZ DR
IPC: C08L79/08
Filed: 1973-10-11
Abstract: Aq. polyesterimide dispersions, contg. polyesterimide as fine solid particles, having particle sizes 5 mu, are prepd. by (1) precipitating an opt. esterification catalyst-contg. soln. of a polyesterimide precondensate in at least one cyclic ether having b. pt. >110 degrees C, at standard press., in water opt. contg. flow control agents, protective colloid and/or wetting agents; (2) largely removing the cyclic ether and (3) grinding the polyesterimide precondensate suspension obtd. to particle sixes 5 (0.05-1.5) mu. Pref. used for prepn. of temp-resistant impregnating and luting compsns., laminates and pre-pregs, e.g. for impregnating glass and polyacrylamide webs and for bonding foils, papers and webs. Dispersions having higher concns. are more easily processed than the solns. Risk of fire is obviated.
Patent DE-2353274-A1 (DE)
Title: Wool grease recovery - by contacting with polymer membrane to separate concentrated wool grease suspension/emulsion from effluent liquor
Inventor: LOWER EDGAR SCOTT
IPC: C02F1/44
Filed: 1973-10-24
Abstract: Wool grease is recovered from wool washing liquors, such as those obtd. by contacting raw wool with an aqs. soln of soap or a synthetic detergent, opt. also contg. an alkali, by subjecting the liquor to a filtration with a membrane in order to separate a concentrated aqs. suspension or emulsion contg. the wool grease from the liquor. High recovery of wool grease of good purity is possible and the clarified liquor can be recycled for further wool washing.
Patent DE-2357810-A1 (DE)
Title: Trans-3-methyl-2-butene-1,4-dial acylals - prepd. by oxidising 3-methyl-2-buten-1-al acylals with selenium dioxide
Inventor: PAUST JOACHIM DIPL CHEM DR
IPC: C07C69/73
Filed: 1973-11-20
Abstract: Acylals of formula (I): (where R1 and R2 are 1-4 C alkyl), e.g. trans-3-methyl-2-butene-1,4-dial-1-ylidene diacetate, are new cpds. which are prepd. by oxidizing cpds. of formula (II) with selenium dioxide in glacial acetic acid, an ether of b.pt. 80-170 degrees C, benzene, an alkyl-subst. or halogenated monocyclic aromatic hydrocarbon or an inert polychlorinated aliphatic hydrocarbon of b.pt. 80-170 degrees C as solvent. The oxidation is pref. carried out at 90-120 degrees C for 5-20 mins. using an approximately equimolar amount of selenium dioxide. (I) are useful as intermediates for carontenoids. Thus, (I) can be reacted with beta-ionylidene-ethyl-triphenylphosphonium chloride under the conditions of the Wittig reaction to give corresponding acylols of retinal in almost quantitative yield; retinal itself is of economic, biological and pharmacological importance since its vitamin activity corresponds to that of vitamin A alcohol and it can readily be converted into beta-carotene.
Patent DE-2361357-A1 (DE)
Title: Three-dimensional TV effect - effect achieved by optical glass convex of from plus half to one
Inventor: KNEIFEL HORST
IPC: H04N13/00
Filed: 1973-12-10
Abstract: The three dimensional effect is produced by the installation of an optical glass "convex-+0.5-+1.0". The above glass makes it possible to realise the 3D television by three methods: (1) when the picture tube is produced, the 3D effect is realised by a glass as above placed before the tube surface; (2) in an existing t.v. set the 3D effect can be obtained by placing the optical glass before the picture screen; (3) this effect can also be realised by special spectacles with "convex +0.5-+1.0" lenses, worn at a distance of some 7-10 cm. from the screen.
Patent DE-2362310-A1 (DE)
Title: High-frequency radiometry system - has directional aerial systems and radiometer receiver equipment with transmission line circulator elements
Inventor: ROEDER ROBERT SEVIER
IPC: G01K11/00
Filed: 1973-12-14
Abstract: Receiver composite signal mixers have first and second mixer input terminals and transmission line circulator elements have third, fourth and fifth terminal devices. The aerial systems are coupled to the third terminal devices and the receiver composite signal mixers are coupled by the first terminals directly to the fourth terminal devices. Oscillators are connected to the fifth terminal devices and signal scanners coupled to the transmission line equipment are cut in between the oscillators and fifth terminal devices. This is to lead part of the output of the oscillators directly to the second input terminals of the composite signal mixers. Utilising devices respond to the input of the radiometer receiver equipment.
Patent DE-2363393-A1 (DE)
Title: Three-phase transformer or choke - has laminated cross section shaped to give even magnetic flux distribution with reduced losses
Inventor: SARBACH EWALD DIPL ING
IPC: H01F27/33
Filed: 1973-12-20
Abstract: The three-phase transformer or choke has its yoke shaped so that the cross section of the individual laminated cores, belonging to the upper and lower yokes and having the winding on them, is approximately proportional to the magnetic flux arising from the end cross sections belonging to a column and covered by the laminated yoke cores. This structure distributes the flux inside the yoke more evenly between the inner and outer edges and avoids the losses that arise from an uneven distribution. It also prevents unwanted vibration and noise resulting from harmonics (mainly three times the nominal frequency). The cross sections of the upper and lower yokes may be proportional to the stepped column dimensions.
Patent DE-2403784-A1 (DE)
Title: Continuous flash evaporation of foaming liqs. - esp. high-purity or heat-sensitive prods
Inventor: SIMON DIETER DIPL ING
IPC: B01D19/02
Filed: 1974-01-26
Abstract: In the continuous flash vaporisation of foaming liqs., in which a throttling device is connected to a vaporising space, a nozzle and a sepn. vessel, the vapour is accelerated in the nozzle to 0.1-1.0 times sonic velocity and no further press. reduction takes place in the sepn. vessel. Low level of prod. contamination is obtd. Even highly stable foams are broken.
Patent DE-2411553-A1 (DE)
Title: Digital analogue converter for analogue serial encoder - operates on iterating principle to give serial digital representation
Inventor: SCHLICHTE MAX DIPL ING
IPC: H03M1/00
Filed: 1974-03-11
Abstract: The comparator output is gated with the serial output of a ring counter driven from a clock and used to insert eight flip flops one after the other. The flip flops are set, by the direct output of the counter, and the outputs are, in turn fed to the digital to analogue converter. The effect of this is that the first, or most significant flip flop set first, the corresponding output is produced by the converter and compared with the input signal. If the converter output is smaller than the input signal, the flip flop remains set. Otherwise it is unset. The second flip flop representing the next (less significant) bit is then set, and either unset or not according to the converter output, and so on until the whole signal is digitized.
Patent DE-2415884-A1 (DE)
Title: Compound type radial piston pump - composed of modular units to form pumps of varying capacity
Inventor: KUSCHKE HARTMUT
IPC: F04B1/053
Filed: 1974-04-02
Abstract: Radial piston pump comprises a star-like arrangement of square-section cylinders clamped between pressure plates which form pressure-collecting channels, with two opposed surface planes abutting the pressure plates. The radial position of the cylinders is determined by cartridge-type slide valves which form connections between the respective cylinder the pressure-collecting channel of one of the pressure plates. The angular position of the cylinders is determined by locking pins which connect the respective cylinders to the pressure plates. rotary and axial displacement forces applied to the cylinders are taken up by friction between the cylinders and pressure plates which are fixed to two threaded bolts extending laterally past the cylinders at right angles to the cylinder bores.
Patent DE-2420320-A1 (DE)
Title: Gripping jaws for fragile articles - has one jaw fixed and other jaw positioned by locknut on adjusting screw
Inventor: HAERTIG CHRISTIAN
IPC: B67B7/18
Filed: 1974-04-26
Abstract: The gripping device for fragile articles such as tumblers or glass articles, where the operator of the device has difficulty maintaining the correct pressure. A pair of jaws carried by members travel on an adjusting screw, where one member is fixed to the end of the screw and the other travels towards and away from the handle when the screw is rotated. Between the handle and the moving member is positioned a locking nut. By rotating the nut, the two jaws can be secured the correct distance apart to give the required pressure on the article.
Patent DE-2420330-A1 (DE)
Title: Mobile road surface stripper - with cutting rollers mounted in tandem leaving no strips uncut
Inventor: HACKMACK ALFRED DR
IPC: E01C23/088
Filed: 1974-04-26
Abstract: The frame of the machine is attached to a carrier vehicle which can move forwards along the road surface, and it incorporates horizontally turning cutting rollers mounted in a frame. A number of such rollers are positioned behind each other or in front of each other, in such a way that no uncut strips of road are left between the cuttings of the front and rear cutter rollers. There may be two rear rollers to the sides between one centrally placed one in front. The side rear or front roller may be movable towards the centre, and the rear ones may be able to fold up towards the centre, by hydraulic media. The frame can be moved up or down if required. The assembly can be of light weight, adaptable for cutting width, folded for transport, and is capable of complete stripping.
Patent DE-2423213-A1 (DE)
Title: Winter tyre with metal strips circumferentially in tread - gives good road holding with little damage to surface
Inventor: PAUSCH RUDOLF
IPC: B60C11/02
Filed: 1974-05-14
Abstract: A winter tyre with rubber tread hs at least one, pref. two continuous, flexible circumferential bands of a harder material, pref. closed on the tyre by riveting the ends together. The band pref. consists of a metal base strip, set in a groove in the tread and having a wear-resistant plastics facing projecting slightly beyond the tread, or of a number of generally transverse but slightly curved metal U-sections with their flanges oriented towards the road surface and set in a plastics base strip; in either arrangement, the base of the band pref. has conical projections engaging in depressions in the tread with bottom clearance. These are staggered relative to the edges of the U-sections (where present). A good grip is obtd., but with a much larger contact area than with spikes, and therefore less damage to the road surface. Good balance and high speeds are obtd. The metal used may be brass.
Patent DE-2424953-A1 (DE)
Title: Stoving enamel binder soln of hydroxylated acrylic resin - also contg etherified melamine-formaldehyde resin and organic solvent
Inventor: HEINS ERHARD DR
IPC: C08L61/20
Filed: 1974-05-22
Abstract: Binder soln, for stoving enamels is based on 100-200 pts. wt. org. solvent (I), 35-45 pts. wt. thermosetting melamine-HCH0 resin (II), partly etherified with i-Bu0H or n-Bu0H, and 55-65 pts. wt. thermoplastic acrylic resin (III) with 0h gps., in which the total amt. of (IIe and (III) is 100 pts. wt. (I) consists of a mixt. of 10-15% n-Bu0H or i-Bu0H, 20-35% white spirit, with 15-20% aromatics content and boiling range 130-175 degrees C, 35-60% aromatic solvent mixt., with boiling range 135-180 degrees C, and 10-20% ethyl glycol acetate. (II) consists of 12-16% hydroxyethyl methacrylate, 25-35% styrene, 30-40% n-butyl acrylate, 10-20% ethyl acrylate and 1-2% acrylic acid and the viscosity of a 50% (III) soln. in xylene at 25 degrees C is 200-700 cP. Soln. is esp. useful in the automobile industry. The enamels are suitable for top coats, which can be applied directly (by a single spraying operation) over baked electrodipping priming in dry thicknesses of 60-80 mum. The stoved films have excellent gloss and very good surface hardness and are resistant to chemicals, e.g. solvents and alkalis. Even when highly pigmented, they have high gloss and good elasticity. They show good adhesion, little discolouration at elevated temp., are resistant to rust spots and can be repaired easily.
Patent DE-2425190-A1 (DE)
Title: Roller system for film developing appts. - with vertically adjustable, flexible lower rollers mounted in grooves
Inventor: JENSEN BJARNE
IPC: G03D3/08
Filed: 1974-05-24
Abstract: Film developing appts. has a developing section with a number of troughs contg. developing liq. and roller pairs in the troughs for moving film through the troughs. The ends of the axles of the lower rollers are mounted in grooves allowing vertical movement of the rollers, and the lower rollers are flexible and made of such a matl., esp. polyurethane foam, that the total s.g. of each lower roller is smaller than that of the developing liq. in the trough contg. the roller. Provides uniform adjustable roller pressure.