baber/WOPTO huggingface dataset:
Patent DE-2720605-A1 (DE)
Title: Control arrangement for loudspeaker with terminal amplifier - has capacitative actual-valve sensor with piezoelectric polyvinylidene fluoride dielectric
Inventor: MEGGL FRIEDEMANN DIPL ING
IPC: H04R7/04
Filed: 1977-05-07
Abstract: Adjustment arrangement for a loudspeaker with a terminal amplifier driving the loudspeaker, and a laminated membrane, and a capacitative actual-valve sensor incorporated in the membrane is claimed. The sensor comprises a piezoelectric dielectric, made up of Batitanate. Improvement of transmission performance of electro-acoustic loud-speaker systems is obtd. Method enables an advantageous combination of low layer thickness, high sensor capacity and small sensor masses to be realised.
Patent DE-2725647-A1 (DE)
Title: Negative electrode for solid state batteries - where mixt. of calcium fluoride and iron powder is pressed in magnetic field
Inventor: KUHN WOLFGANG DIPL CHEM DR
IPC: H01M4/13
Filed: 1977-06-07
Abstract: The electrode is based on alkaline earth metals, and its electrical conductivity is increased by adding iron powder. A mixt. of the electrode material and the iron powder is pressed in a die made of non-magnetic material. The mixt. is poured into the die under the influence of a magnetic field and the field is pref. maintained while the mixt. is pressed to the desired shape. The iron powder pref. retains its magnetisation, and is esp. iron powder produced from iron carbonyl. Used for the mfr. of negative electrodes based on CaF2 or MgF2, where the iron powder forms the desired structure and conductivity instead of using graphite which can form CaC2 in cells producing Ca during charging.
Patent DE-2725788-A1 (DE)
Title: Motorcycle or moped drive unit with kick starter - has starting coupling connected to pumping wheel of hydraulic coupling
Inventor: EMMERICH HEINZ
IPC: B62M19/00
Filed: 1977-06-08
Abstract: The drive unit for motor cycles or mopeds has a driving pulley connected between the wheel, and the engine. The engine can be started through the wheel or with a foot operated kick starter. The engine has a hydraulic coupling and the driving pulley (9) is connected by a starting coupling (14) with the coupling wheel (3) of the hydraulic coupling. The hydraulic coupling, starting coupling and the driving pulley form a unit. The hydraulic coupling and the driving pulley are placed on concentric shafts (2, 7) and the starting coupling is placed between them.
Patent DE-2729557-A1 (DE)
Title: Magnetic stabiliser for trailer drawbar - has magnetic clutch fitted with star shaped magnets
Inventor: VERWEYEN GUENTHER
IPC: B60D1/30
Filed: 1977-06-30
Abstract: The drawbar is fitted with a separate clutch offset from the line of the drawbar and with a rotating joint. This has a star shaped permanent magnet over a core coupled to the other vehicle so that rapid angular movement between the towing unit and the trailer is damped. The system can be fitted to any drawbar and provides a simple and permanent stabilisation which does not require any external power source or adjustment.
Patent DE-2731144-A1 (DE)
Title: One operation assembly of key head and shaft - has tongue on head which bends to form tight fit when pressed into shaft cavity
IPC: E05B19/10
Filed: 1977-07-09
Abstract: Key is manufactured in two sections; the head and the shaft, joined by a tongue on the head fitting into an axial cylindrical recess in the shaft. The tongue(15) of the head(11) is weakened at two locations(16) and bends when forced into the shaft cavity to create a tight fit. The upper bend in the key head tongue(15) bears against an annular projection(27) inside the cylindrical cavity to prevent removal. The tongue(15) enters the cylinder through a transverse slot(25) which provides transverse location. The assembly process is reduced to one operation, i,e. inserting the tongue.
Patent DE-2740134-A1 (DE)
Title: Ski binding release plate - includes heel hold anchoring incorporating geared section in contact with longitudinal gearing on release plate
Inventor: GERTSCH ULRICH
IPC: A63C9/00
Filed: 1977-09-06
Abstract: The release plate is for a ski binding with a heel holder and is anchored to its rear area. The anchoring of the heel holder is adjustable in a longitudinal direction of the release plate and may also be fixed. The anchoring includes a geared section (35) which makes a detachable contact with a longitudinal gearing (32, 33) formed on the release plate (11). The longitudinal gearing is made from two geared sections (32, 33) which are arranged symmetrically to the length centre plane of the release plate (11) with the geared section (35) making contact with both sections (32, 33).
Patent DE-2743590-A1 (DE)
Title: Mine support with hinged floor and roof members - has floor member attached to face conveyor by double cylinder
Inventor: LACHNER HANS DIPL ING
IPC: E21D23/00
Filed: 1977-09-28
Abstract: The mine support has a roof member (5) controlled by telescopic cylinders (7) mounted on a floor member (1) and a rear shield (3) attached by hinges between them, controlled by upper cylinders (21). The floor member is anchored to the side of a face conveyor (8) by a further cylinder (9). This is a composite cylinder with a first part (13) attached by a piston rod (15) to the conveyor, and a rear part (10) attached by a piston rod (11) to a bracket on the floor member by a hinge pin. These two parts (13, 10) are separated by an intermediate plate (14).
Patent DE-2743669-A1 (DE)
Title: Press force measuring jig - has stack of spring washers to simulate sheet metal dynamic shearing characteristics
Inventor: SCHENK HORST DIPL PHYS
IPC: G01L5/00
Filed: 1977-09-28
Abstract: A number of plate-spring washers (2) are mounted on a base plate (1) of hardened steel. A sheath (8) has the same length as the washer stack. The force characteristics can be varied by altering the number of washers and intermediate packing discs (3). A cover plate (5) is retained by guide bolts (4) screwed into the base plate (1). A force measuring enclosure (6) to measure the dynamic force characteristics during application of the press is placed on the cover plate. A ball-shaped cap (7) is provided for point transmission of the force from the press ram.
Patent DE-2745135-A1 (DE)
Title: Heat-exchanger for heating corrosive chemicals has inductively heated rods packed to increase heat transfer area
Inventor: MUSALL REIMAR DIPL ING
IPC: H05B6/02
Filed: 1977-10-07
Abstract: The heat-exchanger uses induction heating to heat highly corrosive chemicals, especially halogens in hydrocarbon halogenation process. The chemicals pass around rods (4) inside a circular housing encircled by an induction coil that heats the rods. The rods are short compared to the length of the housing and are arranged in several stages supported on intermediate plates (5) that lie parallel to the bottom of the housing. The advantage of using rods as heating elements lies in increasing the heat transfer area.
Patent DE-2753325-A1 (DE)
Title: Stripping-backed embossed metal tape coated with adhesive - used as vapour barrier and insulation in air-conditioning installations and pipelines
Inventor: HEINRICHS FRANZ
IPC: C09J7/28
Filed: 1977-11-30
Abstract: Mfr. of a self-adhesive metal tape composed of an embossed metal foil with adhesive coating on one side, and a protective web over the coating, comprises hauling hte metal foil off a supply; applying the adhesive; covering it with protective web; and finally embossing hte resulting laminate. As vapour-diffusion barriers and for sealing gaps in air-conditioning systems and pipelines. Highly flexible. Good adhesivity at relatively elevated temps. uniform appearance.
Patent DE-2758019-A1 (DE)
Title: Prepn. of beta-hydroxy ester of (meth)acrylic acid - using salicylamide deriv. as inhibitor, used e.g. as coatings and in dentistry as binders
Inventor: SCHMITZ-JOSTEN ROBERT DR
IPC: C07C67/26
Filed: 1977-12-24
Abstract: beta-Hydroxy esters of (meth)acrylic acid are prepd. by reacting (a) a cpd. with is not 1 1,2-epoxy gp., with (b) is not 1 mole of acrylic and/or methacrylic acid/1,2-epoxy gp., in presence of (c) and addn. catalyst and (d) a salicylic acid amide as polymerisation inhibitor. Unconverted (meth)acryclic is removed by washing with an aq. alkaline agent with pH 10. The esters are esp. used in dentistry, as binders, e.g. for compsns. for filling teeth, for filling cracks, as repair enamel, or as dental cement. They can also be used as coatings for metals, paper, synthetics and wood, and as binders for printing inks. The esters are clear and very pure, and have good polymerisation properties.
Patent DE-2814560-A1 (DE)
Title: Wood or metal working machine for handyman - has cubic mounting block and power tool slidable on frame
Inventor: MELES ZDENKO PROF
IPC: B27C9/00
Filed: 1978-04-04
Abstract: The arrangement consists of a cubic mounting block with holes in its side in which tubular structural elements for the arrangement can be clamped. The tubes are clamped with screws and part cylindrical clamping blocks. The tubes fit over rods over which they can be moved or on which they can be clamped in position. The mounting block with tubes can be moved over the rods screw drives and handwheels or cranks. Clamping arrangements are provided in which a cylinder can be clamped. The cylinder holds a cutting tool which is rotated wither directly by a motor or via a flexible shaft. The cylinder can be moved with the mounting block.
Patent DE-2817913-A1 (DE)
Title: Cabinet for communications equipment - has sliding door with plate contacting plate on threshold to provide electrical continuity for screen
Inventor: BITZ HANS
IPC: H05K9/00
Filed: 1978-04-24
Abstract: The cabinet has a sliding door moving along plastic guideways. The cabinet (1) and the door (2) each have plates (7, 11) that contact one another when the door is closed and thereby provide electrical continuity for the screening. One of the plates is sprung and fixed to the cabinet's threshold (5). The other plate (11) is flat and is fixed to the underside of the door. The sprung plate is fixed to the threshold by screws and its free end projects through an opening (9). The other plate is riveted to the underside of the door.
Patent DE-2820404-A1 (DE)
Title: Leakage current measuring circuit for capacitors - uses low impedance charging circuit for rapid operation controlled by timer
Inventor: MATZKOVITS EDUARD DIPL ING
IPC: G01R31/01
Filed: 1978-05-10
Abstract: The metering circuit is designed to considerably reduce the time required to conduct the leakage current test, i.e. to approx. 2 seconds. The capacitor (C) is charged up via a charger (1) and a timer (4). The capacitor is charged at constant current at a fast rate, the voltage being limited to the voltage rating of the capacitor. After a short interval, e.g. 2 seconds, the timer connects the capacitor to a discharge resistor (R). A current/voltage converter (2) is coupled between the capacitor and a digital voltmeter (3). The input resistor of the converter is zero-compensated and the total internal resistance of the measuring circuit is typically less than 2 Ohms.
Patent DE-2821619-A1 (DE)
Inventor: MARTIN WOLFRAM DIPL ING
IPC: G04G9/00
Filed: 1978-05-18
Abstract: An electronic timepiece, in particular, a battery-operated quartz wristwatch including a housing in which there is arranged an analog display mechanism as well as a liquid crystal display unit which facilitate a display of different time magnitudes. The display surface of the liquid crystal display is practically as large as the watch dial surface of the analog display mechanism. The liquid crystal display unit is arranged in the housing of the watch in front of so as to superimpose the analog display mechanism. Preferably, the liquid crystal display is transparent and constructed as a replacement for the usual watch crystal as the generally viewed protective cover for the watch housing.
Patent DE-2823993-A1 (DE)
Title: Extending ashtray for dashboard of motor vehicle - includes automatic flap to cover ash reservoir when tray is pushed in
Inventor: BAUER WILHELM
IPC: B60N3/08
Filed: 1978-06-01
Abstract: The dashboard mounted ashtray has a spring loaded flap (11) which opens upwards when the tray is pulled out and has a set of grooves into which lighted cigarettes can be laid. A hinged second flap closes off the large capacity reservoir for ash and cigarette ends in the bottom of the mounting. The hinged flaps are designed to throw any ash and cigarette ends into the reservoir when the ashtray is pushed home. A step prevents the ash from fouling the front of the reservoir and hence the flap mechanism.
Patent DE-2825934-A1 (DE)
Title: Hot liner junction between vault and duct - in prestressed concrete reactor vessel, has conical thrust cone and stiffening rings at duct and vault
IPC: G21C13/036
Filed: 1978-06-14
Abstract: Nuclear reactor pressure vessel has >=2 vaults interconnected by a duct, the duct being composed of a cooled anchoring tube anchored in the concrete of the prestressed vessel, a layer of insulating concrete and an uncooled ("hot") liner forming the gastight membrane. At the junction between the duct and the vault at each end a reinforcing ring is welded to the hot liner and a conical support plate continues towards the vault, terminating in a second reinforcing or connecting ring joined to the hot liner of the vault. Tension anchors lead back from this second ring to the duct anchor ring, while the slope of the cone is such as to complete the triangle of forces at the junction between the thot liners of duct and cone. More specifically, the anchor bars between the second ring and duct anchor tube may be a continuous tube or a series of tension bolts. Used for a duct-vault connection where there is a vault at each end of the duct and consequently free thermal expansion of the hot liner of the duct cannot be permitted. Arrangement provides a suitable force resistant assembly.
Patent DE-2826149-A1 (DE)
Title: Double-sided feeding of current to aluminium electrolysis cells - to reduce effects of strong magnetic fields and permit cells to be placed close to each other
Inventor: KALUSCHSKY NIKOLAI ANDREEVITSC
IPC: C25C3/16
Filed: 1978-06-15
Abstract: The conductor system employs gps. of vertical bars carrying current upwards to the anodes in a row of cells; and the gps. of bars are located in the spaces between the ends of adjacent cells. The vertical conductor bars in each gp. are pref. in a common vertical plane and the system is intended for the operation of a row of cells using currents of 100,000 amps. or more. The spatial arrangement of the conductor bars reduces the harmful effects of the associated magnetic fields on the electrolytic mfr. of aluminium.
Patent DE-2826578-A1 (DE)
Title: Scraper chain conveyor for mine - has hinging trough sections thrust together by springs around coupling bolts
IPC: B65G19/28
Filed: 1978-06-16
Abstract: The scraper chain conveyor for use in a mine has trough sections coupled together to allow limited hinging, while resisting tensile loads. Springs (19) thrust the trough sections (10) against each other, and can typically be of the compression type, enclosing the bolts (16) coupling the sections together. Springs and bolts can be accommodated in recesses (13) in the trough section sidewalls (11) on the outside. The design largely avoids the risk of axial movement of the conveyor in the event of a sudden blockage.
Patent DE-2830608-A1 (DE)
Title: Variable steam throttle with cooling water supply - has cylindrical throttle valve with stem controlling downstream water injection in conical throttle grid
Inventor: DIEKMANN HANS
IPC: F16K47/02
Filed: 1978-07-12
Abstract: The variable throttle for steam comprises a cylindrical throttle member (6) with openings around its circumference end downstream a conical throttle grid (10) with water injection, fixed in the housing (4). A tube (12) with a water supply (14-16) from below is arranged in the centre of the grid and is provided with orifices (13). An extension of the throttle valve spindle (2) enters into the tube from above and acts as a piston slide valve (17) in conjunction with the orifices. The orifices may be arranged in the area covered by the stroke of the piston only. They may be arranged in the area where the conical grid is widest.
Patent DE-2830891-A1 (DE)
Title: Safety valve for hydraulic fluid - has cylindrical housing and spring-loaded closure whose lift is limited by disc in ring groove
Inventor: BRUNNER RUDOLF
IPC: F16K17/04
Filed: 1978-07-13
Abstract: The safety valve has a cylindrical housing (1) contg. a closure member (4) spring-loaded (6) onto a seat (3) against the direction of flow (PR) and a stop to limit the lift of the member. The stop is formed by a disc (13) with outwardly projecting prongs (13a) which is secured to the member. The prongs extend into an annular groove (14) provided in the inner housing wall (15), the upper side wall of the groove defining max. valve lift whilst the lower side wall allows full valve closure. The stop disc may be located between the spring support disc (5) and the spring.
Patent DE-2834518-A1 (DE)
Title: Suction cleaner with adjustable blower - uses current control circuit, switch, operated by removal of nozzle accessory from storage, to determine blower motor rotation
Inventor: PFENNIG GEORG
IPC: A47L9/28
Filed: 1978-08-07
Abstract: The suction cleaner has a blower unit, the revolution of which can be controlled with the nozzles, required for various cleaning processes positioned either in, or on the housing of the suction cleaner for storage. At each storage point for the cleaner's nozzle accessories there is a switch which when the nozzle is removed is moved into one switch position returning to it's original position when the nozzle is returned to its storage position. The change in the position of the switch within the current control circuit determines the number of revolutions of the blower motor, thus providing a variable revolution control for different cleaner accessories.
Patent DE-2838428-A1 (DE)
Title: Suspended loads rotating bearing and hydraulic motor - has inner rotor with bearings and radial cylinders contacting stator cams
Inventor: THUMM HEINZ
IPC: E02F3/413
Filed: 1978-09-02
Abstract: The hydraulic motor is used for rotating suspended loads about a vertical axis, consists of cylinders in the rotor enclosed by the stator. Pistons are arranged into these radial cylinders. The stator and rotor include also bearings in a robust and compact system. A drum with cylinders hs roller bearings at both ends. These bearings act as radial and thrust bearings. A fluid distributor is connected rigidly to stator or to cam housing. A rotating connector is fitted between distributor and the lower end flange of the rotor.
Patent DE-2844410-A1 (DE)
Title: Open=end spinner - with straight and constant channel to carry fibres from loosening roller to rotor
Inventor: STAHLECKER FRITZ
IPC: D01H4/32
Filed: 1978-10-12
Abstract: In the silver feed and opening section of an open-end spinning unit, the fibre channel has a constant cross section corresponding to its opening along its length. The operating width of the loosening roller reduces at least to the width of the fibre channel. Construction ensures a trouble-free passage for the fibres so that a consistent yarn is produced.
Patent DE-2848635-A1 (DE)
Title: Dismountable tunnel driving shield - has bolts securing segment head plates near outer casing and inside inner one
IPC: E21D9/06
Filed: 1978-11-09
Abstract: The tunnel-driving shield is in a number of segments with radial head plates (2a) secured together by screws, which are held together on the one hand by strong bolts (6) inserted in them near the outer casing (3), or welded into place. On the other hand they are held by further bolts or tension-resistant screws (7) inside the inner casing (4). Bolts can be welded into one head plate near the outer edge, fitting in cur-out portions in the other. In the outer sections, between the struts (5) in th head plates near the outer casing may be bores for bolt insertion. The struts may have apertures, through which end sections are accessible.
Patent DE-2851842-A1 (DE)
Title: Alkaline boiling and lyophilisation of cellulosic fibres - in presence of hydrazine phosphonate salt opt. with another cation
Inventor: BALLAND JEAN
IPC: D06M11/38
Filed: 1978-11-30
Abstract: The process comprises effecting the treatment in the presence of a hydrazine phosphonate or a phosphonate of hydrazine and another cation. The cpds. apart from protecting the fibres against oxidn, give a better bleaching and removal of kinks than the reducing agents used at present. Also the results are better than those obtd. using hydrazine in one bath followed by Na phosphate in another bath.
Patent DE-2852581-A1 (DE)
Title: Data cards mounted on continuous paper web - have inscribable laminated covering with projecting side strips adhered to by corresp. side strips of web
Inventor: FUCHS HARRI
IPC: G06K19/04
Filed: 1978-12-05
Abstract: Punched data cards are produced attached to a continuous paper strip and may be individually removed. The continuous paper strip (1) provides a backing for the data cards (2) that are secured by a double sided strip of adhesive tape (4a). The tape is effectively bonded to the upper strip on the rear side with one edge of the card bonded to the top side. A top cover (3) lies over the cards. Individual cards may be torn off, the cover (3) removed and the card peeled away from the backing. A second version uses two adhesives strips that provide bonding for both edges of the data cards. The top cover in both cases may be overprinted with information boxes (7) carrying information relating to specific cards.
Patent DE-2854280-A1 (DE)
Inventor: OHTAKE MASATOSHI
IPC: G11B17/00
Filed: 1978-12-15
Abstract: In a storage apparatus wherein signals recorded on tracks assigned addresses in advance on a rotary recording medium such as an optical video disk are randomly searched at high speed, a random access storage apparatus is provided in which erroneous searches attributed to a transient phenomenon due to a jump for the search, a drop-out, etc. are prevented. The storage apparatus includes an error check circuit. In a random access operation, a read head is mechanically moved to the vicinity of a target address, whereupon an address signal of a track to which the head has been moved is read. Whether or not the address signal is normal is determined by the error check circuit. If the address signal is determined to be normal, it is stored in a register as a reference address. A light spot is deflected by the number of tracks which corresponds to the address difference between the reference address of the register and the target address. If the address signal is determined to be abnormal, the light spot is unconditionally deflected onto the adjacent track and an address signal is read out at the new position of deflection. Thereafter, the error decision and the subsequent operation described above are carried out.
Patent DE-2854435-A1 (DE)
Title: Chuck for large lathe - has three radial jaws actuated by rotating screwed rod driven by hydraulic motor
Inventor: SCHARFEN HANS ING GRAD
IPC: B23B31/165
Filed: 1978-12-16
Abstract: A chuck for a large lathe has a cylindrical body with three radially sliding jaws. The jaws are actuated by a tangentially moving tubular shaft with inclined splines which engage matching grooves in the jaws. The tubular shaft has an internal screw thread which engages a rotating rod. The rod is driven from a Gerotor (RTM) hydraulic motor mounted in the body. The motor is fed with oil from holes in the lathe spindle which are in turn supplied from a stationary ring surrounding the spindle and fitted with oil seals.