baber/WOPTO huggingface dataset:
Patent DE-2433445-A1 (DE)
Title: Phase sync. oscillator for demodulation of fm carrier wave - has sync. response time shortened using low pass filter without increasing noise band width
Inventor: TAN YOHICHI
IPC: H03D3/24
Filed: 1974-07-13
Abstract: The phase synchronised oscillator circuit for FM carrier wave demodulation has a phase comparator for the oscillator output with the incoming FM signal. The comparator output is coupled over a controlled low pass filter to the frequency control input of the oscillator. The low pass filter contains a non-linear impedance whose magnitude depends upon the comparator output voltage such that the filter has a relatively low cut-off frequency when the oscillator frequency is not synchronised with the carrier wave and a relatively high cut-off frequency when it is synchronised. This non-linear element in the filter reduces the circuit synchronisation response time without increasing the equivalent noise bandwidth. The non-linear element may be formed by two anti-parallel diodes.
Patent DE-2438580-A1 (DE)
Title: Preventing twisting of tubular knitted goods, esp. stockings - with expander rods on rotating shaft with needle dial supporting fabric
Inventor: MASSELINK GERARDUS ANTONIUS ST
IPC: D04B15/92
Filed: 1974-08-10
Abstract: A tubular knitted fabric, esp. a stocking, produced on a circular machine having a needle cylinder and a dial, is prevented from twisting around itself by a shaft coupled to the underside of the dial and extending centrally downwards through the stationary guide tube towards the suction and the collector for the hose. In a broader housing coupled to the guide tube, the shaft carries an assembly of rods which can be moved between an open posn. where they support the hose during knitting, and a closed one, lying in grooves in the shaft, so that the hose is released and falls into the collector. A dished centralising bracket is hinged on an arm through a slot in the housing wall, and is moved by a Bowden cable from its working posn. wheren it opens the expander rods and centralises the rotating shaft to a posn. of rest, where it frees the shaft and lies outside the path of the hose. Prod. quality is improved.
Patent DE-2443069-A1 (DE)
Title: Measurement of Q-factor of oscillating circuits - excites an object able to oscillate by a constant pulse and evaluates the result
Inventor: RODLER HANS
IPC: G01R31/72
Filed: 1974-09-09
Abstract: The apparatus evaluates secondary oscillations produced by their undamped attenuation, and measures the parameters of a test object affecting the damping of the excited oscillating circuit, or measures short-circuits between turns of coupled coils. The device consists of a pulse generator, a high resistance limiter and comparator connected to the tested oscillating circuit, an adjustable reference circuit, and a digital counter. The oscillation to be measured is converted into a rectangular oscillation by the limiter stage, comparator and a shaper. This oscillation moves the counter forward by as many steps as there are oscillations above the reference voltage level. The pulse is applied to the inductance to be measured through a capacitor, which forms with the inductance an oscillating circuit. The inductance to be measured can be coupled through an iron core to a coil in the device.
Patent DE-2453836-A1 (DE)
Title: Temp resistant woven fabric - uses cladded metal or mineral filament to give mechanical strength and long heat resistance
IPC: D03D15/12
Filed: 1974-11-13
Abstract: Woven fabric fro high-temp. applications e.g. construction matl. for aircraft and boats or as a filter for exhaust or temp. suppression, is made with the warp and/or weft yarns composed of a carrier and a cladding composed of at least a fibre or filament of glass and/or an Al-Si-Mg alloy and/or metallic oxide and/or at least a mineral wool yarn. The carrier wire or twisted cord and the cladding yarn are twisted together. The process gives a fabric with a high mechanical strength, which can withstand high temps. for long periods without deteriorating making it still usable if the operating temps. are above the m.pt. of the yarn cladding matl. as the carrier yarns remain stable.
Patent DE-2456122-A1 (DE)
Title: Electronic ignition signal generator - signals are amplified to advance ignition corresponding to engine speed
Inventor: TORRES FAUSTO ORLANDO
IPC: H01F29/10
Filed: 1974-11-27
Abstract: The generator consits of a laminated horse shoe shaped magnet core with a primary and a secondary winding. The distributor shaft turns a cam arranged between the core pole shoes to interrupt the magnetic field in synchorisation with the ignition timing. The primary coil is fed from the vehicle battery via a diode and a filter capacitor. An a.c. of low amplitude is induced into the secondary winding when the cam lobes cut the magnetic field, this current is fed to the base of a first transistor and reformed into positive and negative impulses. The negative signals go to a capacitor and the output connection and part of the positive signals are fed to the second transistor to act as an amplifier. At low engine speed the negative signals have a lower frequency than the positive signals which are transmitted via the resistance to the second transistor which is saturated correspondingly to engine speed revolutions to effect the advance timing accordingly.
Patent DE-2459766-A1 (DE)
Title: Stabilised chromium dioxide magnetic pigments - obtd. by treatment with a hydrolysis prod. of an alkoxy silane and heat treating the prod.
Inventor: SCHOENAFINGER EDUARD DR
IPC: C09C1/34
Filed: 1974-12-18
Abstract: Chromium dioxide magnetic pigments are stabilised against loss of magnetic properties by (a) treating an alcoholic or aq. alcoholic suspension of the pigment with a hydrolysis prod. of a silane RnSi(CR')4-n where R = 3-18 C aliphatic org. gp., R' = 1-8C aliphatic org. gp. and n=1-3, such that it remains at least partially on the surface of the pigment after separating the pigment from the medium, and (b) drying the treated pigment at ca 50-200 degrees C. gives pigments useful in making magnetic tapes etc. which are resistant to loss of magnetic properties under advers (hot and moist) climatic conditions; gives better protection than known processes in which e.g. a thin chromium oxide layer or an inorg. metal phosphate layer is deposited on the pigment surface. The pigments also have improved dispersibility and processability.
Patent DE-2461181-A1 (DE)
Title: Digital random signal generator - has two or more shift register with feedback and logic circuit
Inventor: FLOESSER GUENTHER DIPL ING
IPC: H03K3/84
Filed: 1974-12-23
Abstract: The logic circuit is incorporated in each shift register. It combines signals from two different shift register stages and transmits the result to the shift register input. The generation of the required random pulse train by the first shift register originally determined by this feedback network, interferes with a binary pulse train transmitted to the first register by the second shift register through a further logic circuit. The second shift register (SR2) is controlled by clock pulses (T2) whose frequency is different from that of clock pulses (T1) controlling the first register (SR1). Preferably the frequency of the two clock pulse trains in specified relationship.
Patent DE-2506647-A1 (DE)
Title: Belt treating nervous system in spinal region - has bridge elements and supports spanning spinal column
Inventor: TIGGES WILHELM AUGUST
IPC: A61F5/02
Filed: 1975-02-17
Abstract: Therapeutic belt treating the nervous system in the spiral region and comprising an elastic belt stretched around the abdomen with a spiral support in the rear section composed of superimposed bridge elements around the dorsal vertebrae with support elements on the ends whereby the bridge elements span the spiral column without touching it with the support elements resting on either side of the spine on the dorsal muscles whereby in the lower section of the spiral support (12) a bridge-shaped support unit (22) is arranged which is large enough to cover the sacrum and the fifth lumbar vertebrae. Pref., the bridge shaped support unit (22) and support elements (20) are fixed to a flexible base plate (10) with paired slits (26).
Patent DE-2507222-A1 (DE)
Title: Slide ring seal for piston rod - has ring made of tough material combined with rubber elastic seal
Inventor: HEINECK HERBERT
IPC: F16J15/32
Filed: 1975-02-20
Abstract: The rubber elastic, toroidal-shaped or rectangular bordered seal is broader than the slide ring and presses against the surface of the rod, which is to be supported, with its over-projecting part. This part has a wiper edge with an acute angle border or one in the form of a grooved ring. The elastic sealing ring is prevented from entering the sealing gap by a backing ring which can be one of a variety of forms exerting pressure on the ring. This type of design ensures a secure and long-lasting seal which does not demand expensive methods of manufacture.
Patent DE-2510895-A1 (DE)
Title: Accurate angle position encoder without mechanical contacts - for encoding a manually operated shaft position device using HALL effect detectors and permanent magnets
Inventor: HUBRICH RUDOLF
IPC: H01H19/00
Filed: 1975-03-13
Abstract: The device is for encoding the angular position of a manually operated switch or shaft, which has no mechanical contacts and which encodes the shaft. The device consists basically of a plastic disc mounted on the shaft, which can be manually turned and locked in one of typically ten positions, and in which a number of small permanent bar magnets are mounted in radial rows, one row corresponding to each position. The positions themselves are determined by a dog and lever arrangement. Behind the disc is a printed circuit carrying integrated circuits depending on Hall generators (7), the outputs of which are taken from the encoder by printed circuits (26). Each row of magnets on the disc contains a different number of magnets and the Hall generators and electronics are arranged to encode the disc and thus shaft - position according to the field configuration detected.
Patent DE-2511717-A1 (DE)
Title: Propellor for liquid manure prepn. - consists of two flights with aeration holes
Inventor: RAESS PAUL
IPC: B01F15/00
Filed: 1975-03-18
Abstract: Aeration propeller consists of two flights each with cutting edges parallel to the propeller hug. A rear portion of reducing section extends from these. In each flight near the centre, on the cutting edge, are aeration holes connecting to the hollow shaft of the propeller. A hole for a securing pin through the shaft is also provided. The cutting surfaces from the widest portion of the blade and the rear portion extends round to the cutting edge of the other blade. In another embodiment, the cutting edges have a hemispherical depression in them. The circular edge of this depression reaches almost to the outer edge of the propeller. The propeller is esp. used in the biological prodn. of liq. manure.
Patent DE-2518541-A1 (DE)
Title: Electrically controlled two-stage hydraulic servo valve - has cylindrical tappets slidable in bores and with conical heads for sealing
Inventor: PINOMAEKI SAKARI
IPC: F16K31/42
Filed: 1975-04-25
Abstract: The valve main slide is centred by springs and distributes high-pressure fluid to rams etc. and is shifted by an electromagnetic control valve delivering fluid at lower pressure to the slide end chambers via nozzles with solenoid-operated valve tappets. The tappets have cylindrical portions which are an easy fit in the nozzle bore, and conical heads forming seals with faces at the nozzle mouths. In the rest position the fluid flows freely between the nozzle bores and the cylindrical portions without a pressure increase, since the intervening space is greater than the nozzle mouth cross-section. The nozzles can be accommodated in a common cylindrical chamber, having a common tappet with cylindrical bosses and conical sealing faces at each end.
Patent DE-2525846-A1 (DE)
Title: Hand held dispenser for continuous sealing ribbon - removes backing paper strip during ribbon rotation by electric motor
Inventor: KREMPE WERNER
IPC: B65H37/00
Filed: 1975-06-10
Abstract: The hand held dispenser is used to install a continuous ribbon (5) of sealing or adhesive tape onto a workpiece. The ribbon (5) is coiled inside a drum (3) from where it unwinds along a guide rail (1) and around a pressure wheel (8). A silicon paper backing strip (11) which prevents sticking between the turns of the coil is peeled off from the ribbon (5) after it is past the pressure wheel. The removal of the backing strip (11) is achieved by a pair of clamp rollers (17, 25) which are pressed together by a leaf spring (22). This roller pair which is driven by a small electric motor (26), is located on the inside of the guide rail (1).
Patent DE-2536260-A1 (DE)
Title: Automatic feed of fabric to sewing machine - with fabric positioner at gap between pieces having two needles on carrier
Inventor: KLEINSCHMIDT JOHANN OTTO DIPL
IPC: D05B33/00
Filed: 1975-08-14
Abstract: Process for automatically sewing a series of pieces of fabric along an edge involves coupling the end of one piece with the start of the following piece by means of a mobile carrier and then feeding the two pieces sequentially under a sewing head. The carrier is detached after passage through the sewing position. The sewing machine has a station for holding the couplings, a mechanism for detaching them and an endless track to return them to the magazine for holding them. The couplings are fed along a rail and, after the sewing position, are picked up by a conveyor which elevates them to a certain height, after which they run downhill round a circular track to the loading point. The couplings consist of double clamps having a pair of needles which project into the fabric. In the laoding posn., a section of rail can be dropped down to insert the coupling in the fabric and then move it through the sewing posn. Process is used with continuously operating sewing machines permitting continuous feeding of fabric through the machine. Permits operative to make this coupling between bits of fabric in a stationary mode and quite independent of the sewing speed of the machine. This requires less skill than existing devices.
Patent DE-2541779-A1 (DE)
Title: Stator with prefabricated lining for eccentric screw pump - preventing internal stress due to shrinkage of resilient material
Inventor: KNOBELSPIES MANFRED
IPC: F04C2/107
Filed: 1975-09-19
Abstract: The stator comprises a rigid stator body and a resilient lining which conforms to the internal shape of the stator and of which the wall thickness is constant. The lining is prefabricated and cast integrally in the stator body. The lining may be a tube which conforms to the cross-section and pitch of the inner surface of the stator, with anchoring members on its outer surface, and may form part of an endless extruded tube. The stator body pref. consists of curable polyester resin or epoxy resin, and is cast integrally in a supporting tube. The stator is manufactured by drawing the lining over a core of precise dimensions, and casting the stator body around it, then removing the core after the casting has hardened.
Patent DE-2546113-A1 (DE)
Inventor: BAUER GERHARD
IPC: F24F7/06
Filed: 1975-10-15
Abstract: The device has a blower (22) and an air guide duct (16, 18) in a housing provided for the installation on a horizontal edge of a window opening. This housing consists of profiled parts (20) which are the same shape in cross-section and between which heat-insulating connection pieces (34) are situated, which interconnect the profiled parts firmly. At the mutually facing ends, the profiled parts have cutouts (28), into which the connection pieces (34) are inserted. A plate (50) made of sound-insulating material, which extends in the longitudinal direction of the air guide duct, can be inserted into the inside of the housing. The simple construction makes possible versatile use, cost-saving manufacture and rapid assembly. <IMAGE>
Patent DE-2546259-A1 (DE)
Title: Water aeration system for stream - has filter entry to tubes with flow retarding plates forming weir anchored on foundation
Inventor: PAYSEN-PETERSEN GEORG-GODBAR
IPC: C02F3/24
Filed: 1975-10-08
Abstract: The water aeration plant is used for enriching natural streams with oxygen. It is readily adapted to given flow conditions and can be used for regulating water levels. The aeration plant is also readily transported and assembled, cheap and light. It has a water inlet (4) with grill (5). Into the filtered space is inserted a vertical tube (1) with lateral outflow branch tube (2). The vertical tube (1) has an opening at the water inlet end opposite a side face of a wall with ribs (9, 10, 11, 12). This wall divides the vertical tube (1) into two halves. The other side of the wall faces the outflow branch tube (2). The lower end of the tube (1) and the retarding plates (12) are sunk into the foundation (3).
Patent DE-2547516-A1 (DE)
Title: Metal swimming bath edge profile union - has grooved union piece engaged by profile ridges and screw retained (OE151075/NL270476)
Inventor: KOSER JAROSLAV DIPL ING
IPC: E06B3/968
Filed: 1975-10-23
Abstract: The profile union is particularly corner unions for swimming bath edge profiles, in which a fishplate type union piece (2) has grooves (7) in which ridges (6) of the profiles to be joined engage. The union piece (2) is held against the ridges (6) by a clamping device comprising a screw (5) which is located either in profile fillets or in cross-fillets fitted under the profile (1), and engages in holes (8) of the union piece. The grooves (7) and the ridges (6) are V-shaped in cross section. The union finds application in metal swimming baths which, because of their size, cannot be transported as an integral assembly.
Patent DE-2558365-A1 (DE)
Title: Noise suppression cladding for walls and casings - using layer of expanded material covered by plastic reinforced with glass fibre
Inventor: SCHWITTER-SCHLAEPFER EUGEN
IPC: G10K11/16
Filed: 1975-12-23
Abstract: Noise suppression cladding comprises a layer (I) of an expanded matl. placed on the surface requiring sound insulation, the layer (I) being covered with >=1 plastic layer reinforced with a non-woven fabric, the layers being permanently bonded together and the non-woven fabric forming the outer surface of the cladding. >=2 Reinforced plastic layers, consisting of panels or sheets are preF. employed, the joints between the two layers of panels or sheets being staggered so the joints in the lower layer are covered by the upper layer. The non-woven fabric is pref. glass fibre and the plastic layer(s) atatic polypropylene with a filler. The cladding is thinner and less expensive than conventional claddings.
Patent DE-2602239-A1 (DE)
Title: Percussion drill with pneumatic buffer - has tool holder rotated by hollow shaft around cylinder bush and driven by motor of piston
Inventor: WOLF OTTO DR ING
IPC: B25D16/00
Filed: 1976-01-22
Abstract: A drilling hammer includes a common cylinder bush in which are mounted driving and percussive units with a driving piston activated by a motor and a free percussive body which is a reciprocated by the driving piston and by means of air acting as a coupling and a buffer medium. The percissive body is controlled by air openings in the buffer part of the cylinder wall and the tool holder is rotated by a separate driving unit. The cylinder bush (8) is rigidly mounted and the tool holder is rotated by a hollow shaft (13) surrounding the cylinder bush (8) and driven by a motor for the driving piston (1). The hollow shaft (13) is concentrically spaced from the cylinder bush (8) and has air equalising openings (26) which corresponds with the air openings (23,27) of the cylinder bush (8).
Patent DE-2603597-A1 (DE)
Title: Globoidal worm gear for transmitting high torques - has worm spur wheel in mesh with those on worm machined by milling cutter
Inventor: POPOW WALENTIN A
IPC: F16H55/22
Filed: 1976-01-30
Abstract: The globoidal worm gear whose teeth are machined using a milling cutter is for transmitting large torques using gearing of small dimensions. The worm wheel is provided as a worm spur wheel (2) whereby the sides (3) of the windings on the globoidal worm (1) roll along the sides of the teeth (5) of the worm spur wheel (2). During the successive engagement of the worm windings with the wheel teeth the linear coupling occurs over the complete sides (4) of the wheel's teeth. The length of the teeth on the wheel (2) is equal to the diameter (d) of the spaces between the windings in the neck (6) of the globoidal worm (1).
Patent DE-2604926-A1 (DE)
Title: Measurement and control device for movements - has space frequency filter assembled from photoreceivers along lines of object projection
Inventor: LEITZ LUDWIG DR
IPC: G02B27/00
Filed: 1976-02-09
Abstract: The device uses at least one sensor based on the optical-electronic correlation principle, and several photoreceivers. The space frequency filter of the optical sensor is in the form of a raster oriented along the (ideal) straight lines of the object image produced by a central perspective projection. It distinguishes between longitudinal and transversal movements. The photoreceivers (45) form a part of the space filter and are positioned longitudinally or at an oblique angle to the horizontally sequentially placed sets of photoreceiver strips. They feed the received signal to an evaluation unit. In order to construct the space frequency filter, the photoreceivers are built as a stereo image pair. As in the case of an equivalent optical stereo arrangement, they project into the object space to form a 3-dimensioned image.
Patent DE-2610296-A1 (DE)
Title: Three way valve for domestic radiator - has inserts for reversing inlet and outlet in same housing
Inventor: LAUTWEIN HORST ING GRAD
IPC: F24H9/12
Filed: 1976-03-12
Abstract: The three-way valve for a domestic radiator comprises a housing having two stub ducts (5, 9) each having an endport to a central valve chamber (20). The ducts each have a lateral port to a passage (25) bypassing the chamber. In use the bypass port of one and the chamber port of the other duct, is closed. The closure of the ports is effected by respective inserts. The duct whose bypass port is closed serves as the inlet to the valve, the other duct being the outlet. This enables the same housing to be used for either arrangement.
Patent DE-2611064-A1 (DE)
Title: Antitank projectile with deformable explosive charge - has springs for ensuring that nose is deformed before detonation
Inventor: APOTHELOZ ROBERT
IPC: F42B12/20
Filed: 1976-03-16
Abstract: The projectile with a warhead in the nose has a fuse in the tail which has an actuating mechanism for the initiator situated in the warhead. This projectile head is deformed on impact to ensure large area contact before its explosive charge is initiated. The nose with explosive charge is readily deformed and it moves also against a spring in the projectile base on impact with the target. The fuse initiating percussion is held in a housing loaded by another spring against the projectile nose. The projectile percussion pin cannot fire the detonator on transport even if relative movements take place within the projectile.