baber/WOPTO huggingface dataset:
Patent CU-22004-A1 (CU)
Inventor: MAKSIMOV V I
IPC: C02F5/00
Filed: 1987-06-27
Abstract: La invención se refiere a la preparación del agua de una red térmica y puede ser utilizada en la energética industrial y en las centrales termoeléctricas. El objetivo de la invención es elevar la calidad del agua teniendo en cuenta la disminución de su actividad corrosiva y la capacidad para la formación de espumas, el incremento de las propiedades organolépticas, así como el acrecentamiento de la economía del proceso. El procedimiento de preparación del agua potable de la red térmica con distribuidor de agua abierto incluye su calentamiento hasta 40 - 50 grados, la acidificación hasta la alcalinidad general de 0,1-0,4 mg-equiv/kg, el tratamiento alcalino posterior mediante la introducción en él del silicato de sodio o sosa cáustica en una cantidad que garantice la correlación en el agua de la alcalinidad del bicarbonato y de la alcalinidad general, equivalente a 0,08-0,12 y la desaeración al vacío en un régimen de temperatura para separar el oxígeno del agua que es llevado a una temperatura del agente calentado de 85 - 100 grados con una carga del desaereador de un 90 -100% de la nominal.
Patent WO-0131933-A1 (WO)
Title: Verfahren zur aktualisierung einer gültigen signalisierungsvorschrift in einem kommunikationsnetz (kn) zu einem vorgegebenen aktualisierungszeitpunkt
Inventor: GORONCY FRANK
IPC: H04Q3/00
Filed: 2000-10-26
Abstract: Im Rahmen der Einführung einer neuen Signalisierungsvorschrift werden vor dem Aktualisierungszeitpunkt anstelle von aktuellen Signalisierungsinformationen (RNR(KEx)) neue Signalisierungsinformationen (RNR'(KEx)) in einem Kommunikationsnetz (KN) gespeichert. Bei einem Aufbau einer Kommunikationsbeziehung vor dem Aktualisierungszeitpunkt werden die neuen Signalisierungsinformationen (RNR'(KEx)) in die aktuellen Signalisierungsinformationen (RNR(KEx)) umgewandelt. Vorteilhaft ist auf einfache Weise eine globale Einführung eines neuen Rufnummernplans in einem Fernsprechnetz realisierbar.
Patent WO-03005393-A1 (WO)
Title: Vakuumschaltröhre für hohe kurzschlussströme
Inventor: HAAS WILFRIED
IPC: H01H33/664
Filed: 2002-06-27
Abstract: Bekannt sind für Niederspannungsanordnungen Vakuumgehäuse mit im Schaltraum angeordneten Kontakten, von denen wenigstens einer ein Festkontakt und wenigstens einer ein Bewegkontakt ist, welche beide ein Kontaktpaar bilden. Gemäss der Erfindung sind für die Anwendung im Niederspannungsbereich im Schalt-raum (8) des Gehäuses (1) mehrere Kontaktpaare (10a, 20a, ... bis 10f, 20f) vorhanden, die elektrisch einander parallelgeschaltet sind, wobei die von den Kontakten (10a - 10f; 20a - 21) eingenommene Fläche wenigstens 30% der Querschnittsfläche im Schaltraum (8, 48) einnimmt und wobei die Fläche der Kontakte (10a - 10f; 20a - 20f) bezogen auf die maximale Fläche bei einem einzigen Kontakt (10) wenigstens 45% beträgt. Es lässt sich somit eine Reduzierung der Kontaktkraft erreichen, die im Kurzschlussfall zur Gewährleistung eines selektiven Verhaltens gegenüber nachgeordneten Schaltern gegeben sein muss.
Patent WO-03016690-A1 (WO)
Title: Vorrichtung zum kühlen und heizen eines kraftfahrzeuges
Inventor: HOHL REINER
IPC: F01P7/16
Filed: 2002-07-18
Abstract: Die vorliegende Erfindung betrifft eine Vorrichtung zum Kühlen und/oder Heizen eines Kraftfahrzeuges mit zumindest einer Kühlmittelpumpe (30, 32) zur Umwälzung eines Kühlmittels in einem Kühl- und Heizsystem, mit einem Hauptkühlersegment (10), das einen Hauptkühlereinlass (11) und einen Hauptkühlerauslass (12) aufweist, wobei der Hauptkühlereinlass (11) zumindest zeitweise mit mindestens einem Kühlmittelauslass (24, 224, 225, 229) eines zu kühlenden Motors (20), insbesondere eines Verbrennungsmotors, des Fahrzeuges in Verbindung steht, dessen Hauptkühlerauslass (12) mit mindestens einem Kühlmitteleinlass (23) des Motors (22) verbunden ist, sowie mit mindestens einem weiteren, zusätzlich zum Hauptkühlersegment (10) vorhandenen, Nebenkühlersegment (15, 215, 315, 415, 515) und mindestens einem weiteren, mit dem Kühl- und Heizsystem in Verbindung stehenden, zu kühlenden Aggregat (60, 61, 70, 80, 90, 97, 170, 186). Erfindungsgemäss wird vorgeschlagen, dass die Vorrichtung mindestens eine Bypass-Leitung (125, 325) mit einem Bypass-Ventil (72, 251) aufweist, die dem mindestens einen Nebenkühlersegment (15, 215, 315, 415, 515) zugeordnet ist und die parallel zu diesem Nebenkühlersegment (15, 215, 315, 415, 515) im Kühl- und Heizsystem des Kraftfahrzeuges angeordnet ist.
Patent WO-03077472-A1 (WO)
Inventor: WIDERA RALF
IPC: H04L12/26
Filed: 2003-02-05
Abstract: The invention relates to a method for the transmission of measured data from a measuring computer (28, 36, 46) to a control computer (50) in a measuring system, whereby the measuring computer (28, 36, 46) and the control computer (50) are connected to each other by means of a telecommunication network (10), such as internet, intranet or similar. The invention is characterised in that, in order to reduce the amount of measured data, the above is collated into characteristic parameters over a time period and said characteristic parameters are transmitted from the measuring computer (28, 36, 46) to the control computer (50) instead of the data collated to give said characteristic parameters.
Patent WO-2004016921-A1 (WO)
Title: Kühlsystem zur kühlung von kühlluft einer gasturbine und verfahren zur kühlung von kühlluft
Inventor: KESSLER ALFRED
IPC: F02C7/18
Filed: 2003-07-14
Abstract: Eine Gas- und Dampfturbinenanlage (1) mit einem für jeden Betriebszustand geeignet ausgelegten Kühlsystem (18) zur Rückkühlung von aus der Verdichterluft (V) abgezweigter Kühlluft (K) umfasst ein primärseitig in eine von der Verdichterluftleitung abzweigende Kühlluftleitung (17) geschaltetes Wärmetauschersystem (21), das in der Kühlluft (K) mitgeführte Wärme auf einen der Brennkammer (6) der Gasturbine zugeführten Brenngasstrom (23) überträgt.
Patent WO-2004036092-A1 (WO)
Title: Drehbares antriebsmittel und schaltmechanismus mit diesem antriebsmittel
Inventor: LETHBRIDGE JAMES ANTONY
IPC: F16H61/32
Filed: 2003-10-08
Abstract: Drehbarer Antrieb, umfasend ein Antriebsritzel (110) und ein Zahnradsegment (120), das kämmend in das Antriebsritzel (110) eingreift, ein Element (140), das zur Drehung koaxial zum Antriebssegment (120) angebracht ist, ein Federmittel (148), das auf entweder dem Zahnradsegment (120) oder dem Element (140) angebracht ist, ein Widerlagermitttel (134,146) auf dem jeweils anderen von Zahnradsegment (120) und Element (140), das mit dem Federmittel (148) in Eingriff steht, um das Element (140) in eine mittige Position relativ zum Zahnradsegment (120) vorzuspannen, wobei das Federmittel (148) eine rückstellende Kraft in Richtung der mittigen Position bei relativer Bewegung des Elements (140) in Bezug auf das Zahnradsegment (120) ausübt, und ein Anschlagmittel (154), das bereitgestellt ist, um die relative Bewegung des Elements (140) in Bezug auf das Zahnradsegment(120) in jede der beiden Richtungen weg von der mittigen Position zu begrenzen, wobei das Element (140) antriebsfähig mit einer Antriebswelle (80) verbunden ist.
Patent WO-2004086558-A1 (WO)
Title: Antennenkoppler und halterung für mobilfunkendgeräte
Inventor: STRAUSS KARSTEN
IPC: H04B1/38
Filed: 2003-11-11
Abstract: Die Erfindung betrifft eine Halterung (1) für ein Mobilfunkendgerät (0) und einen Antennenkoppler für ein Mobilfunkendgerät. Die Halterung ist mit einer Schnittstelle (50) zum Anschluß einer externen Antenne, insbesondere einer Kraftfahrzeug-Antenne, und mit einer Koppelstruktur zur elektromagnetischen Kopplung von HF-Signalen zwischen der Halterung (1) und der Antenne eines sich in der Halterung befindlichen Mobilfunkendgerätes (0) versehen. Die Koppelstruktur ist derart in der Halterung (1) angeordnet, daß bei eingelegtem Mobilfunkendgerät (0) die Koppelstruktur in der Nähe des Mobilfunkendgerätes (0) positioniert ist. Die Koppelstruktur ist als zwei- oder mehrlagige Koppelstruktur mit zwei oder mehr übereinander angeordneten Teil-Koppelstrukturen (2, 3) ausgeformt.
Patent DE-1807165-A1 (DE)
Title: 4h-1 3-benzothiazine-4-ones bronchodilators
Inventor: HENRY CRONIN TIMOTHY
IPC: A47J36/22
Filed: 1968-11-06
Abstract: (A) Cmpds. (I) where X and Y = OH and/or (1-4C) O-alkyl, or X + Y = (1-4C) alkylenedioxy. and Z = or where R1 and R2 = H, (1-6C) alkyl, (1-6C)alkenyl, CH2CH2OH, or (6-10C) aryl opt. subst. by 1 or 2, (1-3C) alkyl, (1-2C) O-alkyl, Hal, and/or NH2 gps., or NR1R2tog.= or , where R6 = H, (1-4C)CO2alkyl, (1-4C) alkyl, (2-4C) alkenyl, or Ph opt. subst. by 1 or 2, (1-3C) alkyl, (1-2C) O-alkyl, Hal, and/or NH2. and R3, R4, and R5 = H and/or (1-6C) alkyl. (b) Acid addn. salts of (I). (a) Bronchodilators. Dose 0.02-200 mg./kg. (b) Phosphodiesterase inhibitors.
Patent DE-1816560-A1 (DE)
Title: Cross-winder yarn traverse guide
Inventor: SCHMIDT KLAUS
IPC: B65H54/28
Filed: 1968-12-23
Abstract: Guide member is driven by crossed endless groove in cylinder. Sliding block in groove has cylindrical guide flange whose ends are interrupted far enough from inner reversal point of the groove in its diameter that the block is freely guided by the flanges in the reversal zone.
Patent DE-1924110-A1 (DE)
Title: Laminate of resin impregnated layers
Inventor: VOM BRUCK KARL
IPC: B29C70/50
Filed: 1969-05-12
Abstract: Layers of paper or glass fibre, impregnated with resin, are fed to a former, together with covering foil at top and bottom. Intermediary metal foil layers can also be introduced. The layers pass together over a former where they are held together by tension and exposed to electron beam radiation. This activates the resin so that the layers bond together to form a laminate of pre-set dimensions.
Patent DE-1936566-A1 (DE)
Title: Low-friction material for bearing surfaces
Inventor: WIEST PAUL
IPC: F16C33/12
Filed: 1969-07-18
Abstract: The material consists of a sintered, high-strength metal structure satd. with an intermetallic, homogeneous compd. (e.g. SbCd, Cd8Cu5) or heterogeneous compound e.g. Cd8Cu5/Cd3Cu4 eutectic. Spec. a low friction and wear coefficient is obtained by sintering the material and incorporating insoluble metals (e.g. Cd, Pb, Bi, Na, Ca) and soluble metals (e.g. Cu, Zn, Ni) in the complementary material (steel). The material is used for cross-heads in plunger-die casting machines.
Patent DE-1939983-A1 (DE)
Title: Universal pipe manu plant
Inventor: KEHNE LOTHAR
IPC: B21C37/08
Filed: 1969-08-06
Abstract: Universal pipe mfg. plant for straight, spiral etc. pipes from plate in which the various pivotal axis relative to the axis of the pipe being manufactured, the pipe forming machine being arranged to rotate by about 90 degrees round the central axis.
Patent DE-1942128-A1 (DE)
Title: Natural and synthetic fibre continuous - treatment
Inventor: FLEISSNER HEINZ DR
IPC: D06L4/17
Filed: 1969-08-16
Abstract: The continuous treatment of natural or synthetic fibres with chlorinated hydrocarbons as solvents which are recovered and regenerated features the removal of solvents by heated air or steam. The fibres are subject to pre-fixing before entering the action of the solvent by passing over a partially evacuated screen cylinder. The material then passes through three baths in a gas-tight housing and is fed into a dryer.
Patent DE-1944754-A1 (DE)
Title: Purification of alpha-hydroxy-isobutyron- - itrile
Inventor: YAMAGISHI AKIO
Filed: 1969-09-03
Abstract: The crude product obtained by reaction of acetone with cyanic acid in presence of an alkaline catlayst, followed by acid treatment of the reaction product and separation of the salt formed, is treated in a stripping zone with an inert gas, the gas mixture, having been withdrawn, and contg. the inert gas and also cyanic acid and acetone, is absorbed at -20 to +20 degrees C in the equilibrium reaction mixture which contains 90 to 97 wt.% alpha-hydroxy-butyronitrile, 1-3% cyanic acid and 2-7% acetone as well 0.01-7 wt.% of the soln. of the alkaline catalyst. The residual gas is recycled into the stripping zone whilst the purified nitrile is withdrawn at the bottom of the stripping zone. The purification is economical, no decomposition occurs, the nitrile is highly pure and is obtained in good yield are non-reacted acetone and cyanic acid are recovered practically completely.
Patent DE-1957733-A1 (DE)
Title: Spreadable natural manure
Inventor: MELZL GEORG
IPC: C05F3/00
Filed: 1969-11-17
Abstract: Admixture of at least 30 wt.% of peat to fresh cattle manure with an optional addition of chicken manure provides a spreadable and biologically highly active natural manure without loss in bacterial flora known to result from conventional drying of fresh cattle manure.
Patent DE-2018589-A1 (DE)
Title: Aluminium metallising of silicon surfaces
IPC: H01L21/285
Filed: 1970-04-17
Abstract: Semi-conducted components of Si, esp. planar transistor elements with is not 1 pn-junction, are metallised for connection to Al contacts with an AlSi alloy containing pref. 2-3% Si by vacuum deposition, or with an Al Si alloy containing pref. 1-2% Si by sputtering, to a thickness of ca. 5 mu. The alloy layer minimises diffusion of Al into the Si, and vice versa, both of which impair the properties of the component.
Patent DE-2027462-A1 (DE)
Title: Inductor crucible - of two halves connected by high inductive - resistance
IPC: H05B6/22
Filed: 1970-06-04
Abstract: Induction melting crucible for metal and semi conductor melting is designed in such a way, that it is an integral part of one or several windings of the induction coil and is slit to ensure that the current passes through the charge, thus applying additional heat to it. The two halves are connected by a high inductive resistance metal pipe loop, through which the HF. current passes when the charge makes insufficient contact with the crucible for the current to pass through the charge.
Patent DE-2029939-A1 (DE)
Title: Tube withdrawal appts - with two or more withdrawal rollers fixed to a common driven axle
IPC: B29C48/355
Filed: 1970-06-18
Abstract: Tube or profile withdrawal appts. has two spaced apart withdrawal devices for gripping the tubes or profiles and transporting them in the withdrawal direction, each withdrawal device possessing at least two withdrawal rollers fixed to a driven axle. The appts. firmly grips the tube or profile and transports it at a desired velocity in order to obtain a desired wall thickness. The withdrawal device can easily be fitted to different tube and profile shapes, and is simpled and cheap in construction.
Patent DE-2052579-A1 (DE)
Title: Fluoroalchols,esters,ethers - non-ionogenic tensides dirt-repellent polymer coating polymer foam stabilisers
Inventor: BLOECHL WALTER
IPC: C07D303/22
Filed: 1970-10-27
Abstract: Fluoroalcohols, ester and ether derivs., contain a 5+C perfluoralkyl gp. linked via -CH2-CH2- or -Ch2-CHMe- to a 1st or 2nd period Gp. VI heteroelement and contain >=1 OH gp. bonded to heteroatom in beta-positon. They have formula CaF2a+1.CH2CH4.Y.CH1.CR2R3OX3 (I) (where a = 4 to 16 (6-12, esp. 8-10); RH = Me or esp. H; Y is -O-, -S-, -SO-, esp. -SO2-; R1 is esp. H, or -CH2Cl, Me, -CH2OX1; R3 is esp. H, Me or -CH2OX3; R2 is esp. H, Me, -CH2Cl, -CH=CH2, -CHO, -COOH, - COOMe, Ph, -N(CH2OH) or ZOX2, where Z is a difunctional organo gp.; X1, X2, X3 are H, -COMe, -COCH=CH2, COMeC=CH2, -COc(CN)=CH2, -CO(CH2)2-4COOH, -CONR4R5, -COOR4 where R4, R5 are H, -CH2OH, Me, esp. -CONHCH2OMe, -COMe, -COC(Me)=CH2, -(C2H4O)mH, -(CH2CMeHO)mH, X2 esp. =Me, partic. X2 + X3 = O.
Patent DE-2109436-A1 (DE)
IPC: G10L21/00
Filed: 1971-02-27
Abstract: Amplitude regulator for electrical signals connected to filter means, comprising an amplifier, the gain of which can be varied by a loop chain incorporating a loop amplifier, a rectifier and a low-pass filter.
Patent DE-2116495-A1 (DE)
Title: Cement expansion agent - based on calcia,alumina,sulphate and fluoride fused in a resistance furnace
IPC: C04B7/00
Filed: 1971-04-05
Abstract: A mixture of bauxite, gypsum and cryolite to give a CaO/Al2O3 ratio of 0.5-20 and a CaSO4 content of 30-80 wt.% and a fluoride content of 0.2-20 wt.% is melted in 20-400 v. A.C. resistance oven with a current density of 0.8-8.0 amp/cm2. The melt is either allowed to cool insulated or cooled by water spray or air jets.
Patent DE-2117460-A1 (DE)
Title: Hydrocarbon cracking,aromatisation and isomerisation - - using sulphur contg oils under controlled pressure
IPC: C10G35/04
Filed: 1971-04-10
Abstract: The sulphur content of the oil used in the process claimed in Parent Patent, in which any aliphatic or hydroaromatic oil is simultaneously cracked. aromatised and isomerised in the liquid phase in presence of coal as hydrogen acceptor, pheol/cresol as soln. modifier and heavy metal catalyst at 180 degrees C-350 degrees C, is controlled at 0.7-10, pref. 1-4%. Pref. the H2S formed is blown off as necessary to keep the total pressure at 120-300 (150-200) atmos. The sulphur assists in absorbing the hydrogen formed by cracking and the H2S formed acts as a moderator of the cracking reaction to restrict production of olefines and favour aromatisation. Yield of high-octane aromatic petrols is increased and the sulphur content of fuel oils produced is reduced.
Patent DE-2140667-A1 (DE)
Title: Agglomerating cyclone - for removing dust and the finer particles from air
Inventor: LAMPADIUS MICHAEL S DIPL ING
IPC: B04C5/13
Filed: 1971-08-13
Abstract: Agglomerating cyclone in which the air entering the rotationally symmetrical separating chamber passes round a dip pipe widening conically towards the central draw-off position and rotating in the same directions as the circulating air.
Patent DE-2214740-A1 (DE)
Title: Heat conducting device the difference in capillary action provides - unidirectional operat ion
Inventor: BROST ORTWIN DIPL ING
IPC: F28D15/04
Filed: 1972-03-25
Abstract: A heat conducting device, comprising a sealed, evacuated chamber, in which a heat transporting fluid circulates via >=1 evaporating and a condensing section, whereby the transportation of the liquid phase fluid from the condensation to the evaporation section is in one direction only by means of capillary forces. The condensing section is provided with a capillary structure with a substantially lower capillary section than the structure of the evaporating surface. The capillary structures are arranged above axial recesses within the chamber wall or are spaced away from the wall. The transportation zone between the condensing and the evaporation section has a structure with an effective capillary action, which is between that of the neighbouring structures. The device acts in a sense as a thermal diode - which can be operated in any position and independent of gravitational forces.
Patent DE-2215954-A1 (DE)
Title: Distillative prepn of dimethylformamide dimethyl acetal - - by reaction of dmf,dimethyl-sulphate and methanol-sodiummethylate
Filed: 1972-04-01
Abstract: Distillative prepn. of dimethylformamide dimethylacetal (I) is characterised in that a mixt. resulting from reaction of DMF, Me2SO4 and MeOH-sodiummethalate soln. is rapidly and vigorously stirred and distilled at 65-70 degrees C; MeOH is added dropwise into the distillation still, as trailing medium, after the main portion of the distillation product has passed; and the resulting MeOH/(I) mixture is then fractionated. (I) is used as synthesis aid in alkylation and formylation reactions.
Patent DE-2249104-A1 (DE)
Title: Electrodynamic shuttle brake - with accelerated and braked shuttle catcher
Inventor: BAUMGARTNER ERICH
IPC: D03D49/52
Filed: 1972-10-06
Abstract: Shuttle braking device, reducing mechnical stresses and thermal cooling of high speed shuttles, is provided along the shuttle path with an ultra-sonic generator responding to the shuttle speed and connected to a computer, generating signals prop. to the shuttle speed to energise an electro-dymamic drive for the shuttle arrestor to accelerate the latter in direction of shuttle movement. Arrestor is acted upon following acceleration by an electro-dynamic brake.
Patent DE-2252044-A1 (DE)
Title: Heterocyclic dispersion dyes for polyesters, plastics - prepd. by condsn. of opt. substd. 2-amino benzonitrile with 5-aryl-mercapto 1,8-naptholactams
Inventor: SCHEFCZIK ERNST DR
IPC: C09B57/00
Filed: 1972-10-24
Abstract: The dyes are of formula: (where R1 is an aryl mercapto gp; R2-4 are H or a substit. gp; R5 and R6 are H or alkoxy; R1 and R6 together may form a gp. of formula R7 is H, alkyl or alkoxy.) Pref. R3 is NO2, R4 is H, Cl, Br or NO2, and R2 and R5 are H. Dyes are greenish-yellow to red-violet in colour and give brilliant, intense shades on polyester textiles, with good to very good fastness esp. to light and thermofixing.
Patent DE-2260477-A1 (DE)
Title: Lightweight acoustic absorber esp of high frequencies - for textile machinery or large air ducts in mixture of shredded foam and heavier filler
Inventor: HUSSMANN PETER DR
IPC: G10K11/16
Filed: 1972-12-11
Abstract: An acoustic absorber esp. for hoods over textile machines or in gas or air ducting, comprises an absorbing porous wall with a rigid facing (for hoods) or being sandwiched between perforated facings (for ducting dampers). The porous wall is made from plastics foam granules of 3-15mm max. dimension, and esp. of spherical, annular or randomly torn shapes. The granules are pref. bonded to a heavier filler, e.g. of sand, quartz, metal grains, plastics or glass balls, giving a bulk density of 30-90kg/m3.
Patent DE-2265206-A1 (DE)
Title: Monitoring and measuring circuity with three input terminals - designed for operating variables of multi-phase supply network
Inventor: GOERTZ H DIPL-ING PAT-ANW
IPC: H02H3/34
Filed: 1972-04-28
Abstract: A phase-shifting circuit connected to the first two input terminals produces a signal of certain amplitude independent of the frequency and phase angle of the supply network. Another phase-shifting circuit connected to the third input terminal produces another signal whose amplitude is practically equal to that of the first signal and which is unaffected by the supply network frequency. The phase relationships of the two signals are approximately the same if the phase relationship is balanced in the network. An indicator displays the two signals. One embodiment can be constructed to display the difference between the values, while another embodiment shows the sum.
Patent DE-2326057-A1 (DE)
Title: Coatings on optical glasses - suppressing inner reflections
Inventor: OHTA TOKUYA
IPC: C03C17/32
Filed: 1973-05-22
Abstract: Coatings on lenses and prisms in optical instruments are formed from coal ta having an index of refraction of >=1.65 (pref. 1.75-1.85) dissolved in a solvent having an index of refraction >1.6 (e.g. gum arabic, microcrystalline waxes, cellulose derivs, polymers such as polyvinylcarbazole, etc). The difference between the indexes of refraction of the coating and glass is relatively small (pref. zero, in this case, there is no reflection at all).
Patent DE-2331157-A1 (DE)
Title: Play-free pivot mounting of tachograph recording arm - has arm held on fixed bearing spindle by spring compression
IPC: G07C5/06
Filed: 1973-06-19
Abstract: A tension spring is fastened by a cantilever support to the recording arm, and the free leg of the spring presses the bearing points of recesses against the spindle. The recesses may be designed as prism-shaped bushes. The free end of the spring can be bent and a lead-in slope can be provided on the bearing support, so that the support can be swung up onto the spindle. A cardioid cam bears against a wedge shaped cam follower integral with the recording arm, and the action of the tension spring keeps the follower pressing against the cam.
Patent DE-2331759-A1 (DE)
Title: Compressed air seismic shock generator - has air release aperture designed to prevent secondary air bubbles shocks
Inventor: HAVLIK JOHN JOSEPH
IPC: G01V1/387
Filed: 1973-06-22
Abstract: The seismic shock generator uses compressed air with an air reservoir closed by a piston at one of its end together with an auxiliary chamber arranged to release the compressed air charge without the generation of secondary shocks due to the release of secondary air bubbles. The shock outlet aperture of the main chamber may be fitted with an ejector mechanism having a large ratio of circumference to length to generate a sharply limited shock.