baber/WOPTO huggingface dataset:
Patent DE-3029217-A1 (DE)
Title: Abseiling slider for building fire rescue rope - has exchangeable stationary V-groove disc adjacent lever-operated pressure roller around which rope is looped
Inventor: ZASKE LOTAR
IPC: A62B1/14
Filed: 1980-08-01
Abstract: The slider has a base plate (1) on which an exchangeable stationary disc (2) is fixed by two screws. Discs with various section V-grooves can be used with cables or ropes of different sizes and/or materials. The slider is suspended from a fixed point of the building, from which the rescuing abseiling is to take place, by a top or cable (5). The cable is led over a deviating roller (4) then over part of the circumferent of the stationary disc. The looping angle of the cable over the V-groove of the stationary disc can be varied by the pressure roller (7) manually pivoted by the user via a handle (6). To set the degree of frictional braking and thus the rate of descent.
Patent DE-3029264-A1 (DE)
Title: Hydrometallurgical winning of zinc - where neutral leach is followed by hot acid leach producing soln. from which copper and iron are sepd. before combining with neutral leach
Inventor: ESNA-ASHARI MOHAMMED DR ING
IPC: C22B19/00
Filed: 1980-08-01
Abstract: Ores and/or concentrates contg. Zn, Cu, Fe and possibly other metals are roasted in oxidising conditions. The roasted prod. is subjected to neutral leaching (I) to dissolve at least some Zn and Cu, but not iron. The insol. residue is then subjected to hot acid leaching (II) to obtain a soln. from which Cu is pptd. by cementation, and then iron is pptd. before the soln. is recycled to leach (I). The Cu may be pptd. between two pptn. stages used to remove iron. The soln. is pref. neutralised by adding the roasted prod. and/or ZnO, esp. to obtain pH 3, before the cementation of Cu at 60 deg. C. in a vibrating reactor to which solids or grains are added. The process is less expensive than similar methods of winning zinc and one by-prod. is copper free from arsenic.
Patent DE-3032545-A1 (DE)
Title: Regeneration of brick dust surfaces, esp. tennis courts - where treatment with dil. nitric acid restores permeability of court to rain water
Inventor: MORBACH ANTON
IPC: E01C13/06
Filed: 1980-08-29
Abstract: A surface made of brick-dust, esp. on sports arenas, is regenerated by treatment with an acid, esp. an aq. soln. of an acid. The pref. acid consists of an aq. soln. contg. 0.1-5% esp. 2% of nitric acid. The surface to be treated, e.g. a tennis court, is pref. exposed to 3-15 litres of the soln. per square metre. The acid soln. pref. contains a fungicide. Useful on tennis courts, where layers of slag are covered by layers of brick dust and compacted by repeated rolling in the presence of water. The surface then has adequate strength combined with good permeability to water. After some months, the permeability of the court decreases, so a long time elapses after rain before a court can be used. The invention eliminates this problem. The regeneration is simple and inexpensive.
Patent DE-3036799-A1 (DE)
Title: Brake device for roller skates - consists of two levers fitted with brake blocks and actuated auxiliary roller supported on floor when skates are raised
Inventor: GRESSER JUN GERMAN
IPC: A63C17/14
Filed: 1980-09-30
Abstract: The brake device for roller skates consists of two suitably shaped brake levers made from metal or a suitable plastics material suspended by a bearing bolt (6). They have a rotatable bearing round this bolt and there are two suitably shaped brake blocks (9) made either of rubber of plastics which are framed in a brake block support (8) and are mounted at one end of the brake levers (7a,b,c,). The brake blocks press against the flat inner side of the rear axle rollers (3) of the roller skate thus braking them by friction. The actuation of the brake levers is assured by a vertically swivelling auxiliary roller supported on the floor when the roller skate is raised.
Patent DE-3037940-A1 (DE)
Title: Chair bed with two upholstered cushions for sports training - has padded support web for supporting feet now easily adjusted by adjustment screw
Inventor: LIEBERKNECHT ARTHUR
IPC: A47C17/04
Filed: 1980-10-08
Abstract: The backrest (4) which has a height adjustable upholstered transverse web is rotatably fixed in a rotary pivot (5) which is mounted at the top and on the outside of the lower upholstered seat cushion. The backrest (4) can now be infinitely adjusted by means of an adjustment screw on an arc (17) beginning perpendicularly beneath the pivot (5). The position of the transverse web can now be set as required according to the muscles to be exercised.
Patent DE-3042296-A1 (DE)
Title: Correctable xerographic material - has base contg. inks and pigments activated by correcting fluids, the layer being of an hydroxyl gp.-contg. polymer
Inventor: KOSCHE HORST H DR RER NAT DIPL
IPC: G03G7/00
Filed: 1980-11-08
Abstract: The copy layer has a base construction which has inks and pigments which are activated by correcting fluids or other means so that existing copies can be altered to provide otherwise permanent copies. The layers are hydroxyl gp. polymers and the inks can be water activated. Binders and plasticisers and the inks are activated by discrete hydrogen ion treatment to either fade existing inks or to enhance others. Different colours can be supplied.
Patent DE-3100905-A1 (DE)
Title: Anti-theft securing device for vehicles, in particular bicycles
Inventor: CHRISTOFFERSEN CHRISTEN
IPC: B62H5/16
Filed: 1981-01-14
Abstract: The invention relates to an anti-theft securing device for vehicles, in particular bicycles, in which a displaceable latch of a lock, installed fixedly or removably on the vehicle, co-operates, in the locking position, with a rotating part of a wheel to be locked against rotation, and in which the reaction force for the latch is applied by a rotationally fixed vehicle part. In order to make it substantially more difficult to render securing devices of this type ineffective, the latch of the lock, arranged on the hub of the wheel to be locked, is provided within the hub, there being provided, as rotationally fixed vehicle part, a region, intended for this purpose, of the axle body of the wheel and the said region being designed for positive engagement with the latch.
Patent DE-3101906-A1 (DE)
Title: Pressure-relief-valve arrangement for two working circuits
Inventor: BUDECKER LUDWIG
IPC: F15B13/02
Filed: 1981-01-22
Abstract: The pressure-relief-valve arrangement has a valve housing (3) with a pressure connection (4) which can be connected to a pressure-supply source (6), a first consumer connection (7) which can be connected to the first working circuit, in particular the brake circuit (12), and a second consumer connection (8) which can be connected to the second working circuit, in particular the level-regulating means (15). In order to permit a higher pressure in the second working circuit than in the first working circuit in a simple manner, where at the same time it is ensured that the first working circuit is supplied with pressure as a matter of priority, provision is made for the pressure connection (4) to lead into a pressure chamber (40) defined by the end face of a valve piston (19), for the valve piston (19) to have a longitudinal bore (22) which leads on the one hand into the pressure chamber (40) and on the other hand into a transverse bore (23), for the transverse bore (23) to be connected to the first consumer connection (7) and for the second consumer connection (8) to be closed in a first control position into which the valve piston (19) is moved in a spring-loaded manner, for the pressure space (40) to be connected to the second consumer connection (8) and for the connection between the first consumer connection (7) and the transverse bore (23) and thus the pressure space (40) to be interrupted in a second control position, for a pressure switch (35) acted upon by the accumulator pressure to be provided in the first working circuit, and for a solenoid valve (36) to be provided in the second working circuit, the electric circuit of which solenoid valve (36) can be interrupted by the pressure switch (35) if the pressure falls below a certain value. <IMAGE>
Patent DE-3103181-A1 (DE)
Title: Process for the preparation of glycidyl ethers
Inventor: TAKAISHI NAOTAKE
IPC: C07D301/28
Filed: 1981-01-30
Abstract: The present invention relates to a process for the preparation of glycidyl ethers. Glycidyl ethers of alcohols are important intermediates in industry for the preparation of a large number of chemical products. A simple process is described by means of which glycidyl ethers can be prepared from alcohols and epihalohydrins in high yields. The reaction is carried out in the presence of an aqueous solution of an alkaline substance, for example NaOH or KOH, and in the presence of a quaternary ammonium compound which has a (poly)oxyalkylene group in the molecule.
Patent DE-3105892-A1 (DE)
Title: Fire barrier with clearing device
Inventor: RITZ OTTO ING GRAD
IPC: A62C2/22
Filed: 1981-02-18
Abstract: A fire barrier in the course of track-mounted conveying systems at wall apertures or the like is provided with a device for clearing the conveying track in the event of fire. The device can be moved through the fire barrier (6) into a conveying position (20', 22') in which it is located outside the passage cross-section (aperture D). In the event of fire the clearing device (10) can be moved into a clearing position (20, 22), and the clearer (20) moves on the conveying track and can be moved out of the area of the fire barrier (6) again in a clearing manner. <IMAGE>
Patent DE-3117673-A1 (DE)
Title: Verfahren zur steuerung des leistungsfaktors eines wechselstrominduktionsmotors und vorrichtung zur durchfuehrung des verfahrens
Inventor: DAVIS JUN RAY E
IPC: H02J3/18
Filed: 1981-05-05
Abstract: 1 Eine digitale, selbstkalibrierende Leistungsfaktorsteuereinrichtung für einen Wechselstrominduktionsmotor. Während der Anlaufperiode wird eine erste, dem Istphasenwinkel zwischen der Motorspannung und dem Strom entsprechende Zahl bestimmt und mit einer zweiten, einer Sollverzögerung entsprechenden Zahl beim Einschalten des Motors verglichen. Die zweite Zahl wird verändert, bis beide Zahlen nahezu gleich sind. Eine dritte, einem Sollphasenwinkel entsprechende Zahl wird bestimmt und gespeichert, und das System schaltet vom Anlaufen auf Betrieb. Die erste, dem Istphasenwinkel entsprechende Zahl wird nun mit der dritten, dem Sollphasenwinkel entsprechenden Zahl verglichen. Die zweite, einer Sollverzögerung entsprechende Zahl wird nun bei Motorlast variiert, um den Istphasenwinkel dem Sollphasenwinkel gleichzuhalten.
Patent DE-3117953-A1 (DE)
Title: Heat and mass exchanger having a storage layer without a diaphragm and located in the base
Inventor: BESLER GERARD DR ING
IPC: F24F5/00
Filed: 1981-05-06
Abstract: In the case of a heat and mass exchanger which has a storage layer (3) which lacks a diaphragm, is located in the base and has a low resistance to flow and a favourable coefficient of thermal conductivity, vertical air shafts (1) leading into the storage layer (3), air extraction lines (2) arranged in the storage layer (3), and a covering base layer (5) above the storage layer (3), it is possible to achieve optimum use of the base energy by arranging a water-spraying device (6) between the storage layer (3) and the base layer (5) and arranging a thermal insulating layer (4) above said device. <IMAGE>
Patent DE-3123086-A1 (DE)
IPC: B27B31/00
Filed: 1981-06-11
Abstract: 1. Method for splitting up round timber into several timber sections of freely eligible given lengths, the round timber (1) being advanced and positioned in its longitudinal direction and a piece of round timber (1a) being separated by a first saw cut running transversely to the longitudinal direction of the round timber the piece then being transported away in transverse direction, positioned in a longitudinal direction and being subdivided by at least one further saw cut into the round timber sections (1b, 1c or, respectively, 1b, 1d, 1e), characterised by the fact that the further saw cut takes place when the round timber piece (1a) is advanced in a transverse direction, whilst at the same time a further first saw cut is carried out.
Patent DE-3127368-A1 (DE)
Title: Tyre valve provided with a rubber foot
Inventor: RISSMANN HORST-GUENTER
IPC: B60C29/02
Filed: 1981-07-09
Abstract: In the case of a tyre valve provided with a rubber foot, the connection of the rubber foot (2) to the valve body (1) is effected by compressing a central neck (3) which is formed, such that it is directed upwards, on the rubber foot and can be introduced into a bore (4) in the valve body (1). The neck contains a bore (5) into which a sleeve (6), consisting of deformable metal, is plugged and is widened by pushing through a ball of greater diameter, as a result of which the neck, which is under prestress, rests against a large surface area of the valve body (1). In order to keep loadings of the tyre in the region of the valve small, a fixed abutment of the valve body (1) against the rim (10) is achieved in that the valve body (1) is surrounded by a ring (11) which consists of elastomeric material and rests on said valve body with prestress. Said prestress can be effected by compressing a slotted metal ring (12) which surrounds the ring (11). By means of the invention, the costly and not absolutely reliable connection is replaced by vulcanisation. <IMAGE>
Patent DE-3127598-A1 (DE)
Title: Process for seasoning leather
Inventor: ECKERT GUENTER DIPL CHEM DR
IPC: C14C11/00
Filed: 1981-07-13
Abstract: Leather-seasoning process free of formaldehyde odour, by applying an aqueous solution of casein and methoxymethylated or ethoxymethylated urea to leather, drying, and fixing with an acid at from room temperature to 160 DEG C.
Patent DE-3131983-A1 (DE)
Title: Machine for producing chocolate flakes, rods, bars, squares, figures, layers and images, without the use of moulds
Inventor: MOELLER REINHOLD
IPC: A23G1/20
Filed: 1981-08-13
Abstract: Published without abstract.
Patent DE-3132112-A1 (DE)
Title: Cooling device for circuit elements which produce heat
Inventor: NAKAGAWA TERUO
IPC: H02M1/00
Filed: 1981-08-13
Abstract: A device for cooling a switching element which produces heat when it operates. The cooling device has a cooling element which has a projecting part which is intended to dissipate heat from the switching element to be cooled. The cooling element contains a closed chamber which extends as far as the interior of the projecting part. The chamber is filled with a coolant which can condense.
Patent DE-3132937-A1 (DE)
Inventor: WILK HANS-CHRISTOPH DIPL CHEM
IPC: C08F283/02
Filed: 1981-08-20
Abstract: This invention is directed to water-dilutable alkyd and acrylate resins. More particularly, this invention is directed to a method for the preparation of water-dilutable resin preparations based upon alkyd and acrylate resins which comprises the steps of: (a) preparing an aqueous alkyd resin dispersion, wherein the alkyd resin has an acid number of from about 5 to 40 and a hydroxyl number of from about 150 to 300 and the dispersion has a solids content of from about 30 to 90 percent by weight; and (b) polymerizing monomers of acrylic acid derivatives or methacrylic acid derivatives in the dispersion from step (a), optionally in the presence of additional water, to obtain a total solids content of from about 30 to 80 percent by weight, the weight ratio of alkyd resin to acrylate resin being from about 1:4 to 9:1. This invention is also directed to the use of these binders in water-dilutable lacquer systems.
Patent DE-3142667-A1 (DE)
Title: Speed control for an ancillary consuming unit of a motor vehicle
Inventor: SCHELLE EDWIN
IPC: H02P23/16
Filed: 1981-10-28
Abstract: In order to control the speed of an ancillary consuming unit driven by way of a power take-off shaft of the vehicle gearbox, a speed transducer (54) is provided, which is driven as a function of the speed of rotation of the power take-off shaft. A speed control circuit (74) emits pulses when the speed exceeds or falls short of a predetermined reference value. These pulses are relayed via control lines (34c, 34d) to a stepping motor (38), which acts on the speed control element (42) of the vehicle engine (12). The speed control circuit (74) is activated by an AND element (72) only when both an auxiliary drive clutch (22) and the main clutch (14) of the vehicle are engaged. <IMAGE>
Patent DE-3149678-A1 (DE)
Title: Arrangement for temporarily storing information items, to be transmitted in both directions between two functional units, in a buffer memory
Inventor: KLAN FRIEDRICH DIPL PHYS DR
IPC: G06F5/06
Filed: 1981-12-15
Abstract: The buffer memory (PS) is composed of several independent individual buffers (for example P0 to P3) which are administered by a cue control system (WS-ST). All jobs are issued only by the associated transmission control (DVP) and, in addition to transmission data, the control parameters required for executing the job are also temporarily stored in the individual buffer so that the information can be exchanged independently with one functional unit (PMS) and dependently on the transmission control (DVP) with the other functional unit (CHn). The switching-through of the respective transmission paths is controlled autonomously by cue control (WS-ST). The control sequence is simplified by three queues (WS-NX, WS-LD and WS-RY).
Patent DE-3200697-A1 (DE)
Title: Electrical light source
Inventor: KEREKES BELA DIPL ING DR
IPC: H01J61/34
Filed: 1982-01-08
Abstract: The invention relates to an electrical light source which has an essentially axially symmetrical bulb (1) (which is sealed in a vacuum-tight manner by a foot (mount) (2) and is translucent) and means, which is arranged in the bulb (1) and emits light under the influence of electrical current. The light source has a lamp cap (lamp base) (3) which is electrically connected via the foot (2) to the light-emitting means and which can be mechanically and electrically connected to a socket by means of the bulb (1). The essence of the invention is that current-conducting holders (5, 6) are arranged on the foot (2), at the ends of which holders (5, 6) a tubular discharge vessel (4) (which contains a noble gas and a filler, mainly sodium, cadmium and/or mercury) is electrically and mechanically connected as the light-emitting means. The electrical light source according to the invention produces a light yield which is considerably higher than that of conventional incandescent lamps. The light source according to the invention can be produced by means of conventional incandescent lamp production lines. The light source according to the invention has optical parameters which are equivalent to those of conventional incandescent lamps. <IMAGE>
Patent DE-3201263-A1 (DE)
Title: Process and device for the manufacture of a seal ring unit
Inventor: PAKEISER KLAUS
IPC: B23P11/02
Filed: 1982-01-16
Abstract: The invention relates to the manufacture of a seal ring unit with a spiral-wound sealing ring. This ring has a circumferential compound profile projecting outwards, which fits into a matched receiving groove on the inner edge of the outer annular disc. In manufacture, a flat blank for the outer annular disc is first of all deformed to give a conical ring. This ring has the receiving groove at the conical ring edge with the smaller radius. The spiral-wound sealing ring with its compound profile is placed in the receiving groove of the conical ring. The conical ring together with the spiral-wound sealing ring is then bent back into one plane. In this way, the spiral-wound sealing ring can be inserted very gently into the outer annular disc. The receiving groove can be pressed into the blank for the outer annular disc in the course of the process. <IMAGE>
Patent DE-3204149-A1 (DE)
Inventor: KLEEMANN AXEL DIPL CHEM DR
IPC: C07C337/06
Filed: 1982-02-06
Abstract: To produce thiosemicarbazide hydrazine is reacted with hydrogen cyanide and sulfur to form hydrazine thiocyanate, and this is then converted into the thiosemicarbazide at an elevated temperature. Advantageously, the reaction is carried out in a polar solvent.
Patent DE-3215432-A1 (DE)
Title: Hold-down device for solar generators
Inventor: KIENDL HELMUT
IPC: B64G1/22
Filed: 1982-04-24
Abstract: This hold-down device is used for unfoldable solar generators of a satellite. The solar generator consists of a stack of panels (1, 2, 3) which are placed one above the other and are connected by means of hinges (4) to one another and to the satellite body (11). It is proposed that the hold-down device has a lever (8) which is mounted on a bracket (7) such that it can rotate. A spring (9) subjects the lever (8) to pretensioning in the direction of the bracket (7). A cable (10) engages on the lever (8) in the opposite direction to the spring force and presses said lever onto the outermost panel (2) of the stack. The cable (10) can be cut through by a cable cutter in order to unlock the hold-down device. A plurality of hold-down devices can be arranged on the circumference of the panel stack and can be connected by means of a common cable. <IMAGE>
Patent DE-3220130-A1 (DE)
Title: Equipment for forming and dispensing packets of a plurality of flat individual products made of paper, cellulose wadding and the like
Inventor: RUDOLPH SIEGFRIED
IPC: B65H31/30
Filed: 1982-05-28
Abstract: The individual products are fed on a conveyor belt (1, 2 Fig. 1) to two series-connected stacking devices, which operate alternately. During operation of the second stacking device, operation of the first stacking device is blocked, but the products can still pass through it. Each stacking device has an ejector device (B, D), by means of which the products are pressed through the conveyor belt (1, 2) into a collecting device disposed below the conveyor belt and from there removed at an angle perpendicular to the feed direction. Each ejector device (B, D) has a vertically movable lift frame (4), on the lower end of which an ejector plate (25) is disposed. The lift frame (4) is lifted against the force of a pressure spring (8) by means of an eccentric disc (6) disposed on a drive shaft (10). The equipment has a blocking device (40 to 45), which is common to both stacking devices, by means of which blocking device the two ejector devices (B, D) can be simultaneously blocked in operation, but kept so that the products can still pass through, thereby achieving the effect that faulty products can be easily separated out and removed. <IMAGE>
Patent DE-3222053-A1 (DE)
Title: Apparatus for the ultrasonic examination of the female breast
Inventor: HETZ WALTER
IPC: A61B8/08
Filed: 1982-06-11
Abstract: Such an apparatus comprises an ultrasonic applicator and an ultrasound emitter/receiver system which is movable therein and arranged so as to be rotatable at least about the axis of symmetry of the applicator, as well as a water advance section, the ultrasonic applicator having a film-sealed opening for reception and coupling of the breast to the water advance section. According to the invention the ultrasonic transducer system (125) which is rotatable about the axis of symmetry of the applicator (1, 100) is fastened on a bracket (120) inside the applicator (1, 100), which bracket is pivotable together with the transducer system (125) about an axis of rotation which is located close to the plane of the applicator opening (103). <IMAGE>
Patent DE-3223364-A1 (DE)
Title: Lapping tool
Inventor: WILDNER OTHMAR DIPL ING
IPC: B24B33/08
Filed: 1982-06-23
Abstract: A tool for the lapping of bores and internal surfaces of cylindrical bushings and tubes has a two-part lapping ring (2a,2b) which is connected, by means of a releasable connection (7,8), to a lapping ring reception device (3) of, in particular, cylindrical shape, and which can be enlarged in the radial direction by means of actuation members (5,5a,5b) which are arranged so as to be moveable in the reception device (3). The feed of the actuation members (5,5a,5b) is carried out in this case preferably hydraulically or pneumatically. <IMAGE>