baber/WOPTO huggingface dataset:
Patent DE-3919312-A1 (DE)
Title: Toner for electrographic purposes, and process for the development of latent electrostatic images using this toner
Inventor: OHTAKI KAZUMI
IPC: G03G9/09
Filed: 1989-06-13
Abstract: The invention relates to a toner for electrophotographic purposes which is capable of forming a plurality of colours by warming to various temperatures. This toner contains the following constituents:     - a colour-providing agent A which, on warming to specific temperatures, is capable of forming a colour, altering the colour or irreversibly removing the colour; - a colour-providing agent B whose colour is different from the colour of the colour-providing agent A and which is not affected at any of the temperatures at which the colour-providing agent A is coloured, changes colour or is decoloured; and   - a binder resin.   The invention also relates to a process for the production of a plurality of colours which comprises the following steps: development of a latent electrostatic image having the colour of the colour-providing agent B and imagewise supply of heat to the toner image with warming to a specific temperature, a colour being produced in the colour-producing agent A.
Patent DE-3923542-A1 (DE)
Title: Twin core unscreened cable with precise dimensions - is mfd. by accurately controlled extrusion process giving min. capacity to earth and uniform inter-core capacity
IPC: B29C48/06
Filed: 1989-07-15
Abstract: An electric cable with twin cores (1,10) and prim insulation (2) enclosed in a common outer sheath (3) is mfd. to precise dimensions w.r.t. individual core/insulation eccentricity and core to core separation. A suitable cable forming process employs a first entruder (4) for encapsulating the twin cores (1,10) with primary insulation (2), eccentricity sensors (5,6), process regulator (7), post-coding roller pairs (12,13) and a second extruder (8) with associated sensor for applying the thin outer sheath (3) followed by an ultraviolet curing unit (11). The outer sheath material (3) is of the high tensile, abrasion resistant and fast curing type. USE/ADVANTAGE - Provides guaranteed uniformity of construction with eccentricity of core to primary insulation better than 0.05 mm and capacity to earth when submerged in water supw than 1 picofared per meter. Effect of external stray fields is negligible even thoughm unscreened. Partic. suitable for remote control systems subject to flooding.
Patent DE-3924505-A1 (DE)
Title: High solution A=D converter with analog loop filter - has inner A=D converter operated with increased scanning frequency
Inventor: HORBACH ULRICH DIPL ING
IPC: H03M3/04
Filed: 1989-07-25
Abstract: The fed back, interpolative A/D converter has an analog loop filter (Hcs), a coupled inner A/D converter, and a following D/A converter. The latter output signal is fed back to the loop filter input. There is an overscanning and a decimation filter (Hlz) behind the A/D converter, and reduction to a specified scanning rate. The inner A/D converter is operated with an increased scanning frequency, and the converted signal value is transmitted to the D/A converter with the next cycle of the additional overscanning rate. Pref. the additional signal values are stored in a buffer register, whose read-out cancels the additional overscanning. ADVANTAGE - 18 bits exceeding word length.
Patent DE-3930024-A1 (DE)
Inventor: SEDELMAYER JUN FRANZ XAVER
IPC: B60P3/07
Filed: 1989-09-08
Abstract: Loading platform for a vehicle, in particular for a motor car loader, which, in order to roll the vehicle to be loaded on to and off from the chassis of the loader, can be moved by a jack system in the longitudinal direction of the platform, and can be tilted rearwards around a tilting axis which runs transverse to the chassis. Since modern motor cars are more and more often fitted with low front and rear spoilers, there is a danger that when such vehicles are loaded on to this type of loading platform they may strike it with the spoilers. In order to avoid this, it is proposed that the concave curve (10) lies in the rear region of the platform (7) and is so shaped that when the vehicle (2) is rolled on or off, the rear end (6) of the vehicle does not touch road surface, and the standing surface of the front wheels (14) of a vehicle, which may have any desired wheelbase, when the vehicle's rear wheels (17) are located at the rear end (13) of the platform, is situated under the imaginary straight line G, whereby the wheelbase of the vehicle is smaller than the length of the concave curve and the front spoiler of the vehicle (5) has a free access to the platform surface.
Patent DE-3936261-A1 (DE)
Title: Portable lap-top computer with removable display screen unit - has screen which can be separated from connector socket which folds into housing
Inventor: HONDA MASAMI
IPC: E05D9/00
Filed: 1989-10-31
Abstract: A 'laptop' personal computer has a base unit (3) that contains the processing circuitry, memory and a keyboard for access.  At the  rear of the base is a support and connector unit (39) for coupling the unit to a display panel (15).  The base connector is in the form of a socket (39) with contacts in a centre block (27). The converter is mounted on a spring hinge  and folds  into a recess (9).  The display unit has a plug (17) that fits into the socket and has mechanical latch pins (33) that locate in holes (31) when an interlock arm (35) is actuated.  Release of the interlock allows the panel to be removed.
Patent DE-3936475-A1 (DE)
Title: Controlling light intensity of camera eye lamp - operating shutter or light curtain in dependence on instantaneous camera shutter and focus settings
Inventor: HANDSCHEL HELMUT
IPC: G03B15/03
Filed: 1989-11-02
Abstract: A lamp (20) is inserted near the camera lens and (11) its light intensity is automatically controlled in dependence on the instantaneous shutter and focus settings of the camera (10). The control range of the light intensity pref. starts at a fixed, freely presettable basic value. The control is typically carried out only during the camera operation, or during a test run. The shutter and focus settings of the camera may be mechanically scanned and supplied to a microprocessor (22) after appropriate conversion into signals. The microprocessor generates an adjustment signal for the camera lamp. The shutter and focussing adjustment may be derived from the respective electric camera control signals. USE/ADVANTAGE - Still or t.v. cameras to illuminate actors' faces and give eye sparkle. Can also bring out  foreground without too much contrast against background.
Patent DE-3936739-A1 (DE)
Title: Circular knitter pattern unit - has structured slides and inserts using little space for trouble-free pattern selection
Inventor: KOEHLER FRITZ
IPC: D04B15/76
Filed: 1989-11-04
Abstract: The pattern selector slides, for a circular knitter, are arranged over each other with no free play and against inserts which are secured against horizontal sliding.  The lock is rotating cylindrical rod fixed in the housing which, near the pattern selector slides has a displaced flat parallel to its centre axis on one side directed at the edge of the pattern selector slides.  Each pattern selector slide has two recesses open towards the rod, with a gap between them matching the movement path between the active and inactive settings. Pref. a recessed zone in the pattern selector slide, close to the recesses runs along to the guide edge, and is open towards them. Inserts of different thicknesses are fitted with the pattern selector slides, that each slide is assembled with two inserts behind each other in the working direction. ADVANTAGE - The appts. is an easily assembled pattern unit, which occupies little space to give a trouble-free pattern selection.
Patent DE-4002378-A1 (DE)
Title: Circular cylindrical container with concentric rotary filling appts. - retains capability of rotation irrespective of transfer station carried on rotary bearing coaxial with chute
Inventor: MOELLER HERMANN DR ING
IPC: B65G65/36
Filed: 1990-01-27
Abstract: The filler (3) mounted on a bearing (2) in line with the axis of a support (1) is propped up by a framework (3) on which a rotary bearing (6) carries the transfer station (7) on the cylinder cover (20). A pneumatic feed tube (8) ends in a drum (9) from which the filling slides (10) into a chute (11) while air is released through a filter (12). Electric power is supplied via a commutator (17) and slip rings (18) surrounding a cable duct (19) through the chute (11). USE/ADVANTAGE - Esp. for fly ash. Difficulties of cover stiffening and bridging or prolongation of support are eased.
Patent DE-4003895-A1 (DE)
Title: Low-voltage halogen lamp e.g. for kitchen cabinet - is associated with concave reflector and heat sink for dissipation from cabinet floor into underlying space
IPC: F21V7/22
Filed: 1990-02-09
Abstract: The lamp is installed in a shallow cylindrical blind hole (13) in the underside (14) of the floor (15) of the cabinet. Its light is directed by a floodlight reflector (26) through a mineral glass pane (32) on to the working surface below. To increase thermal capacity the reflector (26) is backed by a massive metallic cylinder (19) with a collar (20) screwed (43) under the floor (15). A conical frustum (41) extends through an annular channel (36) to the polyamide lining (42) of the hole (13). USE/ADVANTAGE - On wall-mounted cabinet. 20W lamp can be fitted into available space without overheating.
Patent DE-4011159-A1 (DE)
Title: Prepn. of novel aq. melamine-modified amino resins - by heating mixt. of aq. UF precondensate and aq. melamine-UF precondensate, with opt. addn. of urea]
Inventor: MATTHIAS GUENTHER DR
IPC: C08G12/38
Filed: 1990-04-06
Abstract: Aq. amino resins (I) contg. 60-75 wt.% solids are claimed; (I) are obtd. by heating a mixt. of (A) 60-98 wt.% aq. UF precondensate and (B) 2-40 wt.% M/UF precondensate for 10-45 mins. at 70-100 deg.C and pH 7.5-9; (A) is derived from (a1) 30-50 mol.% urea, (a2) 50-70 mol.% formaldehyde (F) and (a3) 0-2 mol.% other condensable components, and (B) is derived from (b1) 15-35 wt.% melamine, (b2) 10-15 mol.% urea, (b3) 55-70 mol.% (F) and (b4) 0-2 mol.% other condensable components; the theoretical mol. ratio (F):(amino gps. in I) is (0.45-0.6):1, and this condition is fulfilled if necessary by addn. of urea after heating (A) and (B). - 2. The above process is claimed as such.
Patent DE-4012224-A1 (DE)
Title: Bee repellent for controlling bees behaviour - has hydroxy gp., contg. organic cpd(s). to deflect bees away from contaminated areas to protect bees and prevent contamination of bee prods.
Inventor: HOLTMANN HEINRICH DR
IPC: A01N37/02
Filed: 1990-04-14
Abstract: An agent for controlling the behaviour of honey bees to protect the bees and to avoid contamination of the bee prods. contains at least one of the following cpds.: organic cpds. with at least one OH gp., phenolic cpds.; aldehydes, ketones, carboxylic acids, carboxylic acid esters, carboxylic acid derivs., ethers, sulphur cpds. alkanes, benzene, benzene derivs., chlorinated hydrocarbons, organic nitrogen cpds., terpene cpds. and fatty acids. USE/ADVANTAGE - The agent can deflect bees (esp. honey bees, Apis mellikra) away from dangerous fields of crops for a critical period of time. Then the bees can be kept as far as possible from crops which have been treated with various plant protecting agents such as pesticides. (5pp)
Patent DE-4014326-A1 (DE)
Title: Energy-saving electric heating element for room heating - provides simultaneous convection and radiation heat output
Inventor: HAASE BERNHARD
IPC: F24C1/14
Filed: 1990-05-04
Abstract: The heating element acts simultaneously as a convertor and a readiator. It comprises 2 tubular resistance elements associated with an apertured base plate, for heating the cold air flowing through the latter, with simultaneous radiation of the IR heating rays via reflector plates attached to the inside walls of the heating element. Pref. the rectangular apertured base plate measures 20 cm by 30 cm with sidewalls of equal height along all its sides, the tubular resistance elements contained in its interior. ADVANTAGE - Efficient conversion of electrical energy into heat.
Patent DE-4021103-A1 (DE)
Title: Road making asphalt prepn. - using refuse hydrolysis residue as admixture and gas as fuel
Inventor: TRATZ HERBERT DR ING
IPC: C08L95/00
Filed: 1990-07-02
Abstract: An asphalt mix for road making is composed of chippings, sand, filler and heated bitumen as binder. The mineral component can be increased by adding the residue from a refuse incinerator.  Carbonaceous residue from the latter or low-temp. carbonisation gas produced can be used as fuel for the asphalt prodn. Refuse (M) is passed through a disintegrator (5) and pyrolytical reactor (6) from which pyrolysis residue (PR) and low-temp. carbonisation  gas (SG) are passed to a combustion chamber (7). The produced flue gases (RGM) are stripped of the waste heat (8) and cleaned (9). A screen (12) with 3-5 mm mesh produces coarse (PRG) and fine (PRF) residues which are dried in a dryer (2) by a burner (2a), togther with chippings (SP), sand (S) and filler (F). The mixer (1) yields asphalt (A) and flue gases (RG) after addn. of bitumen (B) and asphalt granules (AG). Fused granules (SCH) are produced from the slag of (7) in a water bath (14). ADVANTAGE - This saves both raw materials and energy for heating.
Patent DE-4021688-A1 (DE)
Title: Stepless control for mechanical and hydrostatic transmission - compares speeds of input and output shafts for protection of plate clutches from damage by overspeeding
Inventor: NIKOLAUS HEINRICH PROF DR
IPC: F16H47/04
Filed: 1990-07-07
Abstract: The engine (2) controlled by an economy or full-load program and speed selector (1) drives a power-branching system (6) incorporating a two-stage hydrostatic drive (15,16) and a mechanical drive (17) with two clutches (25,26). Rotational speed sensors (7,9,45) send signals to an electronic controller (3) which disengages the clutches (25,26), applies a brake (43) to the rear axle (27), and displays a warning (29) if the ratio of input and output shaft speeds exceeds the permissible max. USE/ADVANTAGE - On combustion-engined vehicle. Driver is alerted automatically to fault condition, clutches are protected and safety is guaranteed.
Patent DE-4032769-A1 (DE)
Title: Insulation material - which is made of fibre reinforced insulation blocks coated with fibre-free material
Inventor: GUELDENPFENNIG ROLF DR
IPC: E04B1/80
Filed: 1990-10-16
Abstract: Thermal insulation plates are made of fibre-reinforced insulation material (1) attached to a base material (3). The material (1) has fibres running parallel to each other between the base (3) and outer surface (2). The final coating (4) consists of a wetting binding agent which is free from a reinforcement fibre tissue material. Pref. the insulation material is a mineral fibre reinforced material of density 60-200 kg/m2, pref. 80-90. The tensile strength is at least 50 RN/m2 with a 60 mm insulation thickness. The pressure stress of the material at 10% compaction is at least 40 KN/m2 (with a 60 mm thickness). The plate thickness is 3-30 cm, pref. 6-12 cm. The fibre-free coating (4) is a binder based on acrylate, styroacrylate, terpolymerate or propionate or a mixture of at least two. It may also be a solvent contg. resin such as silicone mass, PUR-mass a EP-mass. or a waterglass, cement, hydraulic lime. ADVANTAGE - BY avoiding a fibre reinforced outer coating stress cracking is reduced in this coating.
Patent DE-4035876-A1 (DE)
Title: Sliver can filler - has structured rotation of can and filler funnel to deposit material in coils without drawing
Inventor: WICKI RAPHAEL
IPC: B65H54/80
Filed: 1990-11-12
Abstract: To deposit rovings or slivers in coils, in a can, the can is rotated round its vertical axis while the sliver outlet at a funnel-shaped feed rotates to move the outlet in an irregular path. The rotary speed of the sliver outlet matches the rotary speed of the transfer point of the loop in the can. In the appts., the drive wheel (40) is linked to the drive (44) through a shaft (42, 46) with a double action linkage point (48) to give an adjustable angle (w). The linkage point (48) is a universal joint, operating at half the rotary speed of the funnel wheel, and aligned towards it. The driving surface of the funnel wheel and/or the driving wheel (40), parallel to the rotary axis (A) of the funnel wheel, has a generally elliptical circumference surface, for the drive belt (38) to pass round. The dia. (e) of the drive wheel (40) is between the dimensions of the adjacent axis of the shaped ellipse of the drive surface and the main axis, which is at right angles to the main axis of the drive wheel. The guide channel in the funnel wheel is curved in plan section, against the direction of funnel wheel rotation. A tensioning roller bears against at least one level of the drive belt (38), suspended to swing against the belt. ADVANTAGE - The action prevents any drawing effects on the rovings or sliver while being deposited in the can.
Patent DE-4038466-A1 (DE)
Title: Concealment of flat roof insulating plates - uses single layer seam-weldable sealing strips and there are roller insulating strips
IPC: E04D5/10
Filed: 1990-12-03
Abstract: The single layer, seam-weldable sealing strips are used on the roof of a building. The strips are joined to insulating plates or with roller insulating strips in such a way that on a long and face side an adequately wide overlap of the strip appertains, i.e. of the order of 10 cms. The sealing strips are foldable in half for ease of transport. USE - To conceal and seal flat roof insulating plates.
Patent DE-4041348-A1 (DE)
Inventor: MEIER WERNER DIPL ING
IPC: G21C19/02
Filed: 1990-12-21
Abstract: The invention concerns a nuclear-reactor element with a long-sided casing (2) having a cross-section in the form of a regular polygon. One end of the element has an end-piece (3) on which a central body (4) is fixed in the casing (2). The central body (4) is surrounded by a sleeve (6) which can be displaced along the longitudinal axis of the casing (2). A radial throughbore (8) extends through the sleeve (6) at one vertex of the polygonal cross-section of the casing (2) in such a way that the throughbore is readily accessible to lifting tackle, permitting the sleeve (6) to be lifted out of the other end of the casing (2).
Patent DE-4100858-A1 (DE)
Title: Vacuum cleaner with blower unit - has blower in inner housing capsule located in outer capsule, leaving flow space, and free space between outer capsule and housing
Inventor: KLEINHENZ ALBERT
IPC: A47L9/00
Filed: 1991-01-14
Abstract: The air current produced by the blower unit (9, 10) is guided through the flow space (33, 34) to an outlet (37) in the vacuum cleaner housing (1). The flow space is connected directly to the outlet, and the outer housing capsule (12) is sustained in the vacuum cleaner housing by a noise-damping support (23, 24) arranged on its outer periphery. The inner housing capsule (11) is pot-shaped, and the outer housing capsule (12) is formed from two axially joinable pot-shaped housing shells (12a, 12b), of which one is provided with a floor aperture (18) leaving the suction aperture of the blower free. The motor (9) of the blower unit is noise-damped and supported on the pot floor (14) of the inner housing capsule (11), and on the open pot side (15) of the inner housing capsule a sealing sleeve (16) engaging around the housing of the blower (10) in the region of its face side is fitted.
Patent DE-4101885-A1 (DE)
Title: Computer-supported telecommunication system - has external computing interface which is available for special services or alarm functions as distinct from e.g. ordinary telephonic communications
Inventor: SIEGMUND GERD ING GRAD
IPC: H04Q3/545
Filed: 1991-01-23
Abstract: An exchange (2), connected by a network access interface (4) to one or more terminals (5) and by e.g. an integrated services digital network (ISDN) to other external terminals is supported by a computer (3) which is an integral part of the system and has its own interface (8) to peripheral keyboards and screens (6). Both terminals (5) and the peripherals (6) are accessible through a user interface (7). The computer (3) can establish links and conference calls, engage check-back lines and manage system information. ADVANTAGE - Allows development of number of different services even for small users.
Patent DE-4102731-A1 (DE)
Title: Directly writing multibeam lithography system - has substrate markers with radiation energy source, generating first number of radiation beams
Inventor: ALLEN PAUL
IPC: H01L21/30
Filed: 1991-01-30
Abstract: The system is used for marking a substrate (104) by marking elements (101), coacting with a first radiation energy source  for generting a first number of radiation beams.  An aligning system (102) is used for bringing the substrate in line with the radiation beams.  The aligning system pref. contains optical members. The aligniong system may contain an illuminator (106) for the substrate, and an observing arrangement (107) for the illuminated substrate.  The marking device contains marking elements and a first radiation energy source, a radiation beam reduction lens  (103) focussing the radiation beam on coupling to the marking elements, and the observing arrangement optically coupled to the reduction lesn for the substrate viewing. USE/ADVNATAGE - Chip marking by laser scanner, with improved aligning.
Patent DE-4104597-A1 (DE)
Title: Rewind unit for extension cable - rotates end of cable by gripper moving along guide unit
Inventor: SEIDEL JOACHIM
IPC: H01B13/008
Filed: 1991-02-12
Abstract: An electrical cable (1) is wound into coils by being heated and rotated on a carrier until the predetermined number of windings has been obtained. The end of the cable is held by a gripper (2) that moves on a guide bar (3) set at an angle. As the gripper moves along the guide bar it is rotated to maintain the correct angular position relative to the windings formed on the coil. The range is limited by switches (4,5). USE/ADVANTAGE - Telephone subscriber's appts. Electrical  appliances. Maintains correct cable orientation during winding.
Patent DE-4105065-A1 (DE)
Title: Thermally insulating temp. stable protective coating for molten metal - comprises rice shell ash as carrier and finely divided caustic lime and is useful in casting processes
Inventor: DABROWSKI RALF
IPC: B22D11/111
Filed: 1991-02-19
Abstract: A thermally insulating temp.-stable protective coating (I) for molten metal comprises rice shell ash (II) as a carrier and finely divided, caustic lime (III). Prodn. of (I) is also claimed and comprises mixing the mixt. until the basic component is sufficiently fixed to the rough surface of the ash ensuring no sepn. of the two. USE/ADVANTAGE - (I) is useful in casting processes, in which the molten material goes into the slag, which takes place in the metal bath thus losing its thermal -insulating properties.
Patent DE-4105585-A1 (DE)
Title: Ignition system for four-cylinder IC engine without distributor - provides two sparks per cylinder in each four-stroke cycle for coils with shorter HT leads
Inventor: PAGEL ERNST-OLAV DR ING
IPC: F02P15/08
Filed: 1991-02-22
Abstract: Two ignition coils (12,14) in separate housings are connected directly to the sparking plugs of two cylinders (1,2), and by h.v. cables (20,22) to the sparking plug connectors (18,16) of the other two cylinder (4,3). The firing sequence is such that when one cylinder (e.g. 1) of each pair concludes its compression stroke and its mixt. is ignited, the other cylinder (4) completes its exhaust stroke with an ineffectual spark prior to the induction stroke. USE/ADVANTAGE - Also with other engines having even number of cylinders. Cost is reduced with fewer coils working alternately at lighter loading.