baber/WOPTO huggingface dataset:
Patent DE-2945326-A1 (DE)
Inventor: ENGLBRECHT RUPERT
IPC: C08J9/30
Filed: 1979-11-09
Abstract: 1. Process for the manufacture of shaped erasers comprising homopolymeric and/or copolymeric compositions, which are manufactured from compounds containing vinyl groups, and/or caoutchouc substances, wherein the compositions contain optionally plasticisers, optionally fillers, and optionally further additives, and wherein, after being shaped by application to a carrier or introduction into moulds, the compositions are hardened or gelled by heating, subsequently removed from the carrier or the mould, and, optionally, provided with the finally desired shape by mechanical means, characterised in that there is used a composition comprising caoutchouc and/or 100 parts by weight of the polymeric base, from 20 to 120 parts by weight of plasticiser, from 0 to 30 parts by weight of viscosity-reducing agents, from 0 to 200 parts by weight of fillers, up to 5 parts by weight each of customary heat stabilisers and cell foam stabilisers, and optionally, solvents, the composition initially being in the form of a paste and then, prior to application to the carrier or introduction into the moulds, being foamed by mechanical introduction of gas.
Patent DE-2946656-A1 (DE)
Title: Helical spring winding machine - with separate drives for slip free wire feed and shaping tools each with electrically controlled motor
Inventor: LANGE GERHARD
IPC: B21F3/06
Filed: 1979-11-19
Abstract: Appts. includes a pitch tool and a shaping tool movable by a displacement shaft with a drive for rollers of a slip-free wire intake and a drive for each independently displaceable pitch or shaping tool each with an electrically controlled motor and with a programme control for one of the drives. The roller drive has a continuously-running electromotor and a coupling with a tachogenerator connected between the coupling and the intake rollers. A proportional amplifier is connected between the generator and electromotor of the tool drive. Appts. allows for running on of the wire feed after drive cut-off, due to inertia; the pitch and shaping drives continue to operate for a short time.
Patent DE-3001330-A1 (DE)
Title: Lathe cutting bit carrier - has part cylindrical periphery and polygonal recess with central screw bore for fitting bit by clamp screw
Inventor: ECKLE OTTO
IPC: B23B27/16
Filed: 1980-01-16
Abstract: The cutting bit carrier (1) is partic. intended for the cutting tool of a lathe. It has a flat bottom face and at least semi-cylindrical periphery (3) concentric to a bore (4) with a screw thread. The (triangular) bit is secured in a correspondingly polygonal recess (5) with bottom parallel to the carrier bottom by a central clamp screw in the bore (4) and the carrier itself is fixed from below by a retaining screw in a threaded bore (12). The side walls (8) of the recess are at equal distances (a) from the bore (4) centre. The periphery (3) may have two 45 deg. portions (3a) offset by 120 deg. with a radius (R) a little greater than the radius to the cutting tip of the bit.
Patent DE-3001490-A1 (DE)
Title: Heavy machine gun firing mechanism - has two double arm levers working together and controlled by manually or pedal operated stop
Inventor: KLINGAUF LUDWIG
IPC: F41A19/08
Filed: 1980-01-17
Abstract: The firing mechanism is for a machine gun or cannon, where a round is thrust by the breech block from the magazine etc. into the breech, locked and fired. A double-armed arrester lever engages a boss on the block, when this is spring-urged into the position ready for firing, and is actuated by a component on the gun mounting against spring action, this component being in turn actuated by a hand or foot lever. The arrester lever consists of two double-armed levers (A,B) having edges (8,9) at their free ends moving along intersecting circles and working together. A movable stop (14) allows the hand- or foot-operated lever (B) to move into the single-shot position, or keeps it in the position for continuous firing.
Patent DE-3004803-A1 (DE)
Title: Potentiometer with capability for circuit card mounting - has baseplate with contact track that locates in circuit card hole
Inventor: BERTL GERD
IPC: H05K3/36
Filed: 1980-02-09
Abstract: A potentiometer is designed to allow ease of location in an aperture on a circuit board. The contact track (3) is formed on the surface of a substrate (1) and the ends of track are terminated in two connecting strips (4,5). The slider pick up (18) is mounted on a centre pin that is axially biased by a spring cup washer. The outer edges of the contact plate (10,11) are tapered and locate in an aperture on a circuit card (8). Soldered connections may be made to the connecting strips (4,5).
Patent DE-3008115-A1 (DE)
Title: Electrolytically removing cobalt or nickel coatings - from ferrous or copper base workpieces, using soln. contg. salicylic acid or deriv.
Inventor: BREMICKER KARL
IPC: C25F5/00
Filed: 1980-03-03
Abstract: Electrolytic stripping of Ni or Co coatings from Fe or Cu-contg. substrates is carried out using novel stripping baths contg. at least 0.5 g/l of salicylic acid (I) or the corresp. amt. of a water-soluble salt or ester of (I). For Fe-contg. substrates the bath also contains water-soluble nitrates and/or water-soluble salts of acetic acid and/or aliphatic hydroxy acids. For Cu-contg. substrates, the bath also contains NH4SCN. (I) is pref. added as an alkali metal, NH4 or amine salt in an amt. of 5-50 g/l. The pH of the baths can be 5.5-12. Addn. of (I) provides faster and more even metal removal and avoids use of harmful (nitro)phenols.
Patent DE-3021831-A1 (DE)
Title: Heavy tank gun automatic loading mechanism - has ammunition accommodated horizontally for entire turret length alongside gun
Inventor: GRATZL JOERG ING GRAD
IPC: F41A9/04
Filed: 1980-06-11
Abstract: The automatic loading mechanism is for a heavy-calibre gun in an armoured fighting vehicle with a turret. The ammunition is accommodated close alongside the gun, and is arranged horizontally for the entire length of the turret. It can be transported in the magazine by a conveyor belt. The design allows all the ammunition to be accommodated inside the turret, with consequent rapid loading.
Patent DE-3025321-A1 (DE)
Title: Photoconducting whole glass fibre esp. for rocket control - has protective adhesive coating which tears off during unreeling
Inventor: HEIDEN DIETMAR ZUR DIPL ING
IPC: G02B6/44
Filed: 1980-07-04
Abstract: A reel or coil of photoconducting fibre is a whole glass fibre (2) coated with an adhesive (3) which detaches from it when the fibre is uncoiled from the reel. This adhesive is pref. a silicone elastomer. The photoconducting fibre is intended esp. for use as a rapidly unreeling fibre of high tensile strength for attachment to a rocket or other projectile to provide a connection with a ground-based control unit. Previously the whole glass fibre was covered with a prim. coating and then a plastics sheath, but the new arrangement uses only an adhesive which tears off the fibre as soon as it is unreeled. Thus the protective function is still maintained but the resultant fibre is much lighter per unit length and therefore a greater length can be used for a given tensile strength.
Patent DE-3031325-A1 (DE)
Title: Tetra:alkyl ethane-1,1,2,2-tetra:carboxylic acid ester prepn. - by di:alkyl malonate condensate with halogenating agent in presence of alkali hydroxide soln.
Inventor: RIECK HANS-PETER DIPL CHEM DR
IPC: C07C69/34
Filed: 1980-08-20
Abstract: Tetra-alkyl ethane-1,1,2,2-tetracarboxylic acid esters, (I) are prepd. by condensing dialkyl malonates, (II), with the required halogenating agent quantity to form 1 mol. (I) out of 2 mol (II) in the presence of bases. Novelty consists in usinq, as base, aq. lyes, esp. alkali hydroxide-, partic. aq. NaOH solns., under the formation of a 2-phase system. (II) are esp. the 1-6C alkyl esters, esp. the Me- or Et esters. The halogenating agents can be Br2 (prefd.), alkali hypobromite, CBrCl3 and/or N-bromo-succinimide. Molar ratio halogenating agent: (II) is 1:2. The reaction mixt. is pref. diluted with an aq. base-immiscible organic solvent, esp. CH2Cl2 or carbon tetra-chloride, which dissolve (I) and allow the easy separation of (I). (I) are intermediates for the prepn. ef the free ethane- 1,1,2,2-tetracarboxylic acids and their salts, used esp. as builders in deteroent compsns. the H2O2 adducts of the alkali- and ammonium salts can also be used as deterqent builders and also as complexing agents and H2O2-sources. (I) are obtd. in high yields by a simple, cheap process.
Patent DE-3038690-A1 (DE)
Title: Pharmaceutically active heparin salts - are prepd. by reacting heparin with di:hydro:ergotamine or a prim. or sec. aliphatic amine
Inventor: ECKERT THEODOR PROF DR
IPC: C08B37/10
Filed: 1980-10-14
Abstract: Salts of heparin with ergotamine and with 3-8C prim. and sec. aliphatic amines are new. The salt with dihydroergotamine (I) is prepd. by reacting heparin with (I) in equivalent or less amt. to give a neutral or slightly acid prod. The salts with the aliphatic carrier are prepd. by reaction to neutral. The salts are useful for the same purposes as heparin and its Na salt.
Patent DE-3040916-A1 (DE)
Title: Ignition circuit for semiconductor switch - has piezoelectric chip coupling AC excitation signal to control input of switch
Inventor: KLEINSCHMIDT PETER DIPL PHYS
IPC: H03K17/687
Filed: 1980-10-30
Abstract: A piezoelectric chip (1) has two electrodes (13,14) on one side and two corresp. electrodes (13',14') on the other side. The piezoelectric chip decouples the input control circuit (9) from the semiconductor switch (10), which may be a triac, a thyristor or a MOS power FET. One pair (13,13') of electrodes acts as input and is connected to the output of the control circuit and the other pair (14,14') acts as output and is connected to the semiconductor switch. The electrodes may take various forms, e.g. concentric rings, rectangular or semicircular. An additional pair of electrodes may be incorporated to provide a second output for controlling a second semiconductor switch. The frequency of the a.c. voltage produced by the control circuit and the resonant frequency of the piezoelectric chip are matched to one another for a given vibration mode of the chip.
Patent DE-3042769-A1 (DE)
Inventor: GOLDMANN SIEGFRIED DIPL CHEM D
IPC: C07D413/14
Filed: 1980-11-13
Abstract: 1. 1,4-Dihydropyridines which are linked in the C-3 position, of the general formula I  see diagramm : EP0052300,P19,F4  in which R and R' are identical or different and each represent a phenyl radical or a thienyl, furyl, or pyridyl radical, the phenyl radical is optionally substituted by one or two identical or different substituents from the group comprising nitro, cyano, azido, halogen, trifluoromethyl, hydroxyl, amino, alkyl, alkoxy, alkylamino or alkylmercapto, with in each case 1 or 2 carbon atoms in the alkyl groups, R**1 and R**1' are identical or different and each represent a straight-chain or branched hydrocarbon radical having up to 6 carbon atoms which is optionally interrupted in the chain by an oxygen atom and which is optionally substituted by fluorine, chlorine, hydroxyl, phenyl or phenoxy, R**2 , R**2' , R**4 and R**4' are identical or different and each represent hydrogen or a straight-chain or branched alkyl radical which has up to 4 carbon atoms and which is optionally substituted by fluorine, chlorine, hydroxyl, phenyl or amino, R**3 and R**3' are identical or different and each represent hydrogen, alkyl having 1 to 4 carbon atoms, phenyl, benzyl or phenethyl, optionally substituted by hydroxyl, fluorine or chlorine, Y and Y' are in each case identical or different and each denote - COO -, - CONH -, - CO - or - SO2 - and X denotes a bridge member which consists of one to ten CH2 groups as the chain member, and none of these CH2 groups are allowed as a ring member, it being possible for this bridge member additionally to contain, in any sequence, 1 to 3 identical or different chain members from the group comprising O, S, CO, CS, NR**5 , C(R**6 )2 , CH = N, phenylene, naphthylene, pyrrylene, cycloalkylene with 5 to 7 carbon atoms, piperazinylene, piperidinylene, pyrrolidinylene or morpholinylene, wherein R**5 represents hydrogen, benzyl or alkyl having 1 to 4 carbon atoms and R**6 represents hydrogen, benzyl, phenyl, fluorine, chlorine, alkyl having 1 to 4 carbon atoms, hydroxyl, trifluoromethyl, cyano, carboxyl or amino and their pharmacologically acceptable acid addition salts.
Patent DE-3043522-A1 (DE)
Title: IR range finder for auto-focus - uses controlled signal pulses and two channel signal processing
Inventor: MEISSNER KLAUS DIPL PHYS
IPC: G01S7/491
Filed: 1980-11-18
Abstract: The IR diode provides a stream of pulses with a pulse to full cycle ratio of not more than 0.5. The detector provides a two channel processing with one channel operating on signal difference and the other on the sum of two signals. Ceramic filters and signal mixing circuits provide an accurate determination of the range. The circuit operates automatically with a phase shift detection circuit and low pass filters in line with each detector. The small band width of the detectors with lock-in facility operate with a known signal frequency, provided by the main oscillator.
Patent DE-3106349-A1 (DE)
Title: Method and apparatus for the production of metal barrels
Inventor: SANTONI CESAR
IPC: B21D51/20
Filed: 1981-02-20
Abstract: The invention proposes a method and an apparatus for the production of a metal barrel which consists of a tubular circumferential shell and at least one end, which is connected to the shell by seaming. The circumferential edges of the shell and of the end rest flat upon one another and are folded in such a way that a seam consisting of five layers of material is formed by these edges, extending in a radial direction. For reinforcement and to form a seven-layer seam, the seam is then folded over again and compressed in the longitudinal direction of the barrel in order to form a leaktight seamed joint and a rim of increased strength and at the same time to keep the height of the seam as small as possible.
Patent DE-3106849-A1 (DE)
Title: Flow divider
Inventor: YANG FRANK JIANN-FU
IPC: B01D15/08
Filed: 1981-02-24
Abstract: A flow divider has a line which emits a fluid flow having a linear flow characteristic to a sheath which forms a dividing chamber. A plurality of dividing chambers are connected to the sheath such that their axes at the junction point are at an angle of at most 5 DEG with respect to an extension of the axis of the line. <IMAGE>
Patent DE-3108445-A1 (DE)
Title: Method and circuit arrangement for measuring the error rate of digitally coded signals
Inventor: SOCHOR JOSEF DIPL ING
IPC: H04N17/00
Filed: 1981-03-06
Abstract: A method is proposed for measuring the error rate of digitally coded signals which can be used to identify the transmission reliability of a channel between recording and playback. The circuit arrangement to carry out the method comprises a counter to count the word errors occurring during a pre-defined period which are identified by a recognition circuit according to the selected error criteria. A buffer memory can be used for mean value formation, thus producing a more stable indication of the mean error frequency.
Patent DE-3115577-A1 (DE)
Title: Liquid-ring pump
Inventor: STEHR HERMANN DIPL PHYS DR RER
IPC: F04C19/00
Filed: 1981-04-16
Abstract: The invention relates to a liquid-ring pump with a pump impeller (3) mounted eccentrically in the bore of the pump casing (1) and fitted with blades (2). Provided between the liquid ring (8), formed by the sealing liquid set into rotation by the pump impeller (3), and the pump casing (1) there are means for reducing the friction between the liquid ring (8) and the pump casing (1). In order to provide for the reduction in the friction losses without separate, expensive components, it is proposed that, between the liquid ring (8) and the inner surface of the pump casing (1), a gas or air ring (12) be formed or that rough faces provided on the inner surface of the pump casing (1) cause mini turbulences over the entire circumference of the pump casing (1). <IMAGE>
Patent DE-3120233-A1 (DE)
Title: Refrigerator
Inventor: FRANK RUEDIGER DIPL PHYS DR
IPC: F25B9/14
Filed: 1981-05-21
Abstract: In a refrigerator with a working space for a periodically movable displacer (9, 17) and a regenerator, an adsorption means (36, 38) is provided either in the colder region of the regenerator or in the colder region of the working space. <IMAGE>
Patent DE-3120426-A1 (DE)
Title: Lawnmower housing
Inventor: HAGEMANN ULRICH
IPC: A01D34/00
Filed: 1981-05-22
Abstract: A lawnmower housing (1) is stabilised by a central reinforcing rail (9, 23). The reinforcing rail (9, 23) carries links (26), to which accessories operated by the mower motor (2) are connected. <IMAGE>
Patent DE-3122957-A1 (DE)
Title: Diaphragm pump
Inventor: GLOCK WILFRIED DIPL ING
IPC: F04B43/02
Filed: 1981-06-10
Abstract: The invention relates to a fuel pump for Ottoengines, in which the intake stroke of the working diaphragm is carried out by a spring and the discharge stroke by a tappet driven by the internal-combustion engine. Compared to conventional pumps of this design, there is arranged, between the tappet and the working diaphragm, a further spring whose resilience, while larger than the resilience of the spring carrying out the intake stroke, is smaller than the sum of the resilience of the spring carrying out the intake stroke and the force acting on the working diaphragm originating from the regulating pressure in the working chamber, which pressure acts on the entire area of the working diaphragm. This novel construction makes it possible to manage with fewer individual components than in the prior art; the loading of the individual components is reduced, as the resiliences are less compared to conventional pumps, and less noise is produced, since owing to the interposition of the spring transmitting the tappet motion, no mechanical contact takes place during the discharge stroke.
Patent DE-3125816-A1 (DE)
Title: Electrical hotplate
Inventor: MAIER HANS PAUL
IPC: H05B3/68
Filed: 1981-07-01
Abstract: The invention relates to an electrical hotplate. The novel feature is regarded as at least one electromagnet, which is integrated into the surface of the hotplate, for increasing the contact pressure of a pot or the like placed on it.
Patent DE-3129097-A1 (DE)
Title: Riding whip
Inventor: DOEBERT MICHAEL
IPC: B68B11/00
Filed: 1981-07-23
Abstract: Mounted on a riding whip is a reflecting or fluorescent signalling device (5), with which the rider can make himself known to other traffic at twilight. <IMAGE>
Patent DE-3129731-A1 (DE)
Title: Digital broadband communications system
Inventor: APPELMANN WOLFGANG DIPL ING
IPC: H04N21/2365
Filed: 1981-07-28
Abstract: The invention relates to a digital broadband communications system in which a central station (I) is connected via optical fibres (II) to subscriber stations (III, III', III''). The subscriber stations (III, III', III'') can receive television and audio programmes, receive and transmit videophone and telephone signals and can emit back channel signals. According to the invention, at least the central station (I) can transmit time division multiplex signals at different transmission bit rates, preferably in a ratio of 1 : 2 : 4. This allows step-by-step expansion of the system on the one hand and, on the other hand, offers different signals at different prices to individual subscribers. <IMAGE>
Patent DE-3131403-A1 (DE)
Title: Circuit arrangement for small PABX systems in which dialling signal transmission is initiated for external connections in the form of audio-frequency code signals by a central device assigned to the subscriber stations
Inventor: BLOSSFELDT DIETER DIPL ING
IPC: H04M1/515
Filed: 1981-08-07
Abstract: Published without abstract.
Patent DE-3137421-A1 (DE)
Title: Process and apparatus for the production of spun-fibre yarns from or with fibre tows
Inventor: MAAG FRITJOF DIPL ING DR ING
IPC: D01G1/06
Filed: 1981-09-19
Abstract: A fibre tow (1) is drawn off from the can (2) and is fed via a feed device (3) to the spiked roller (4). There, the filaments of the tow are torn apart and opened to form individual fibres. In the fibre-guide channel (5), the opened and torn fibres are transported to the rotor (6) by an airstream and are deposited in the rotor groove there. The yarn is drawn off from the rotor groove by the draw-off nozzle (7) and at the same time acquires its twist. The finished yarn is wound onto the bobbin (8). Fibre tows made from different raw materials can be supplied simultaneously. Mixtures with fibre slivers can also be made. The fibre tows can be produced by high-speed spinning processes. There is therefore no need for separate drafting. Because a pretension is applied to the fibre tow before it is introduced into the actual feed device, the latter is relieved of stress. For the simultaneous processing of fibre tows and fibre slivers, these can be fed by separate feed devices and, if appropriate, opened and torn onto coaxially arranged opening and spiked rollers. <IMAGE>
Patent DE-3143305-A1 (DE)
Title: Method and device for forming twisted baked goods
Inventor: MORDECHAI HENDEL
IPC: A21C3/08
Filed: 1981-10-31
Abstract: For mechanically forming twisted baked goods, a preformed dough stick is subjected to a movement along three axes perpendicular to one another, each movement being implemented with its own desired programmed speed. This is achieved by means of a movable support which has a frame with motor-driven rollers which move a continuous belt in one direction, and by means of motors which, via gear and cam means, move the entire support backwards and forwards in the same direction and in a direction perpendicular thereto.
Patent DE-3147193-A1 (DE)
Title: Method for the preparation of a pullulan composition having limited molecular weight distribution, method for the preparation of a plasma expander, and method for the preparation of a hyperkinesis agent using the pullulan composition and this agent
Inventor: YOSHIDA MIKIHIKO
IPC: C08B37/00
Filed: 1981-11-27
Abstract: The invention relates to a method for the preparation of a pullulan composition having a limited molecular weight distribution, which comprises the partial hydrolysis of the pullulan employed, the fractionation of the partial pullulan hydrolysate obtained and the collection of the fraction having an Mw/Mn value of not more than 1.5. According to the invention, any desired pullulan composition having a limited molecular weight distribution and the desired molecular weight can be obtained in relatively high yield and advantageously used for plasma expanders or hyperkinesis agents and also for a reliable pullulan composition.
Patent DE-3148559-A1 (DE)
Title: Diagnostic radiological apparatus
Inventor: PAULI KARLHEINZ DIPL PHYS DR R
IPC: H01J35/26
Filed: 1981-12-08
Abstract: The invention relates to a computer tomograph with alternating rotation and lateral displacement of the X-ray beam (1a) transirradiating the patient. For the purpose of lateral movement of the X-ray beam (1a) for a specific angular setting of the turntable supporting the X-ray tube (1) and the radiation detector, the X-ray tube (1) is constructed as a rotating-anode tube whose anode track (13) is situated in the direction of the axis of rotation (14) of the anode such that the distance focus(11) -cathode (9) varies during the rotation of the anode. <IMAGE>