baber/WOPTO huggingface dataset:
Patent DE-4034224-A1 (DE)
Title: Acting heat e.g. solar radiation, direction detecting system - has solar connector and deflecting tube controlling drive motor
Inventor: BLUEMHUBER HERMANN
IPC: F24S20/20
Filed: 1990-10-27
Abstract: The system consists of a solar collector and a tube of round cross section clamped at one end. The free end of the tube deflects in a defined direction when heated on one side and slides in a guide connected via a rotatable shaft to the solar collector. The tube deflection controls a drive motor via a contact or using contactless signal transfer. USE/ADVANTAGE - Esp. for guiding collectors in evacuated glass tubes, e.g. in winter garden and in space travel.  Enables simple, rapid and relatively stable sun tracking and hence increases solar energy utilisation.
Patent DE-4038583-A1 (DE)
Title: Safety device for vehicle electric window - uses hollow profile connected in pressure system coupled to pressure-responsive switch for drive cut=out
Inventor: KARL GERHARD DIPL PHYS
IPC: E05F15/47
Filed: 1990-12-04
Abstract: The safety device uses a resilient hollow profile (7) extending between the closure edge and the window frame, coupled to a pressure generating system and to a pressure-responsive switch (10). The latter is operated in response to a pressure variation in the pressure generating system, to cut out the window operating drive. Pref. the pressure responsive switch (10) is coupled to the electronic control (11) for the electric motor (6) allowing the voltage applied to the latter to be reversed when an obstacle is detected in the closure path. USE - For preventing accidents.
Patent DE-4102271-A1 (DE)
Title: Earthbound landing gear for aircraft take=off and landing - has carriage on rails with hydraulic capture-release elements, speed matching controllers
Inventor: MUELLER HANS-JUERGEN
IPC: B64F1/10
Filed: 1991-01-26
Abstract: The earthbound landing gear arrangement has a carriage (2) which bears the aircraft (1) during take-off and landing and whose speed is matched to that of the aircraft via an inductive electrical linear drive. The carriage is guided on a rail (4) forming a take-off and landing strip and carries hydraulic capture (3) devices with latching elements which can be coupled with and released from the aircraft during the landing and launch phases. The aircraft and carriage contain controllers for speed matching, buffers in the capture devices and the latching elements during each phase. USE/ADVANTAGE - Esp. for launching and landing large aircraft. Enables maximum safety to be achieved with very small landing strip area.
Patent DE-4103575-A1 (DE)
Title: Crystallising fat emulsions and melted fats - by mechanically shearing prod. while temp. is varied step-wise of continuously, used to improve butter spreadability, etc.
IPC: A23C15/02
Filed: 1991-02-06
Abstract: Fat emulsions or melted fats are crystallised by subjecting them to a pref. homogenous input of mechanical energy while the temp. is step-wise or continuously reduced.  The mechanical energy input is produced in a laminar or turbulent shearing operation.  The period or periods of treatment are varied in accordance with the characteristics of the prod.. The crystallisation process is controlled by regulating the rate of mechanical energy input.  The temp. is controlled in accordance with the enthalpy spectrum of solidifying or of melting.  This enthalpy spectrum is measured calorimetrically or by differential scanning calorimetry.  The temp. steps or zones are chosen to suit the temp. of solidification of the major constituent of the prod.. Shearing is produced by the relative motion between two machine parts, or by passing the prod. between two stationary plates. USE/ADVANTAGE - Used esp. for crystallising milk prods. such as cream and butter.  The spreadability of the end prod. is improved in a controlled manner and without the use of additives.
Patent DE-4106915-A1 (DE)
Title: Current supply circuit using switched regulator - has opto-coupler in pulse width modulation regulation stage and short-circuit current limitation
Inventor: REUSTLE HANS DIPL ING
IPC: H02M1/32
Filed: 1991-03-05
Abstract: The supply circuit uses an optocoupler (Ok1) providing isolation within a pulse width regulation stage for the switched regulator, controlled in dependance on the current in the output circuit. The optpcoupler (Ok1) is supplied with a controlled voltage (Uh1). This is delivered by the same, or a different output circuit, incorporating an element (F1) with a resistance (F1) exhibiting a voltage drop in case of a short-circuit, which can be used as a back-up supply for the optocoupler (Ok1). Pref the latter element (F1) comprises a FET. ADVANTAGE - Provides short-circuit current limintation.
Patent DE-4106936-A1 (DE)
Title: Paper sizing prepn. - contains conventional sizing agent and special aluminium citrate as size improver
Inventor: BONIN WULF VON DR
IPC: D21H17/15
Filed: 1991-03-05
Abstract: A sizing prepn. (I) is claimed, contg. a normal sizing agent (II) and 0.0025-2.0 pts. wt. Al citrate (III) contg. 0.3-2 mols. citric acid/Al atom (w.r.t. 0.25 pts. wt. solid II). Pref. (I) contains aq. starch soln., 0.1-5.0 wt % (II) (solid) and 0.002-5.0 wt.% (III); (III) is obtd. by reaction of 1 mol. Al(OH)3 with 0.3-2.0 (pref. 0.5-1.5) mols. citric acid in the presence of 0-2.0 (pref. 0-1.0) mols. orthophosphoric acid, pref. in 25-90% aq. soln. at 50-180 deg.C; (II) is an anionic or cationic size. (II) is e.g. a soln. or dispersion of resin size, a prod. based on fatty acid or amide, diketene, protein, polysaccharide, alkenylsuccinic anhydride, maleic anhydride copolymer, (meth)acrylamide (co)polymer etc., (III) is added to the pulp before, with or after (II). USE/ADVANTAGE - The addn. of (III) gives a sizing prepn. with improved sizing values, suitable for alum-contg. or alum-free pape
Patent DE-4114720-A1 (DE)
Title: Paper bag making machine - has delivery cylinder which incorporates endless belt running in opposite direction to cylinder periphery
Inventor: BRUSDEILINS WOLFGANG
IPC: B65H31/06
Filed: 1991-05-06
Abstract: The machine for making paper bags is supplied with a continuous strip of paper which is unwound from a roll. The strip is folded longitudinally and the edges glued together to form a flattened tube. The tube is passed through a mechanism which cuts it transversely and glues one pair of open edges to form the bags. The bags are delivered to a receiving table by means of a cylinder which is provided with four grippers, each of which is mounted in a recess (21). An endless belt (22) is mounted between each adjacent pair of grippers. This belt is driven so that its speed is equal to the peripheral speed of the cylinder but in the opposite direction. USE/ADVANTAGE - Bag making machine which can make bags from thin paper without crumpling the bag.
Patent DE-4119953-A1 (DE)
Title: Tennis ball regeneration machine - has container with base plate, plexiglass(rtm)  cylinder cover, manipulator with handle and bar stopper to refill b all with compressed gas
Inventor: CARL KURT DIPL ING
IPC: A63B39/04
Filed: 1991-06-18
Abstract: The machine incorporates a container (1) for each ball, consisting of a base-plate (6) on which is a plexi-glass cylinder (7) on which is a cover (8) pierced by a manipulator (12). The base-plate, cylinder and cover are held together by axially parallel tension-screws (10) outside the plexiglass cylinder. The ball-holder's interior forms an excess pressure chamber (3) closed by a compressed gas pipe with locking-valve (4). The manipulator operated from outside by a handle (13) and adjusting bar (14) going through the lid inserts and fastens a stopper (16) into the ball's filler-hole (2'). USE/ADVANTAGE - Tennis balls which have a rubber-type casing and compressed gas filling and which have lost their elasticity. Does not need puncturing needles.
Patent DE-4120017-A1 (DE)
Title: Water trough used as anti explosion device in mine - has tapering sides with projecting rib around inside top edge over which flexible flange of cover fits
Inventor: LEPPAK WILHELM
IPC: E21F5/14
Filed: 1991-06-18
Abstract: The trough (a) has a tapering cross section and a rim around the horizontal flange to secure a tight fit for the cover (b). The cover (b) has a beaded rim (c) and a flexible flange which fits over a rib running round the inside top edge of the trough. There are catch stops integrated into the bead rim of the trough. USE/ADVANTAGE - The cover is securely fitted to resist deformation and disturbance from shock waves caused by explosions.
Patent DE-4120132-A1 (DE)
Inventor: STRUTZ RAINER
IPC: A61C13/225
Filed: 1991-06-19
Abstract: Prostheses intended to be secured by friction to solid primary crowns consist of a bracket to which are fitted secondary crowns intended to be fitted telescopically on the primary crowns which, in turn, act as supports of a facing. The secondary crowns often consist of a casting of a suitable dental alloy formed in one piece with the bracket. In order to increase strength and durability and improve carrying properties, the invention proposes such a tooth prosthesis in which the bracket (3) and secondary crowns (4) system takes the form of a one-piece titanium casting, whereby the secondary crowns (4) bear a facing (5) consisting of a ceramic material. Such a tooth replacement ensures great strength, high colourfastness and economical manufacture.
Patent DE-4125947-A1 (DE)
Title: Timer for economical heating - involves additional appts. contg. timer installed before heating elements
Inventor: SUTER KLAUS
IPC: F24H9/20
Filed: 1991-07-18
Abstract: The time switch clock (Z'U) works on the basis of four hours work flow and two hours rest flow, and the work flow is divided into 60 seconds work flow and 60 seconds rest flow. The total amt. of work flow corresponds to eight hours per day. The timer uses the thermal behaviour of the heating bars in the heating body during its operation to heat and cool them appropriately. The bars heated in sixty seconds do not cool completely during the rest flow. The residual heat in them causes the storage core to be fed further by a specific percentage. ADVANTAGE - Reduces energy consumption by more than 20 percent,maintains constant room temperature
Patent DE-4129691-A1 (DE)
Title: Catheter for insertion in urethra - has filling duct with secondary cooling duct and balloon connected via third duct
Inventor: HOFSTETTER ALFONS PROF DR MED
IPC: A61B90/00
Filed: 1991-09-08
Abstract: The catheter (10) is of the three-way type with a first duct (12) which is used for filling the bladder. A second duct (14) is connected to the proximal side of a first balloon and is used for supplying the cooling medium. A third duct (16) passes through a second balloon (18) attached to the distal end of the catheter (20). The open end of the third duct is positioned on the distal side of the second balloon.The three ducts are either installed one inside another or they run side by side. USE/ADVANTAGE - catheter for insertion in the urethra. It does not damage the urethra wall.
Patent DE-4130174-A1 (DE)
Title: Circular saw with pivoted motor housing on baseplate - has locking lever, actuated to release locking device for downward movement of motor housing
Inventor: SCHNIZLER ALBRECHT
IPC: B27G19/04
Filed: 1991-09-11
Abstract: The electric tool, esp. circular saw, has a motor housing (3), fastened pivoted to a baseplate (1). A starter (16) of the tool drive is actuated by a spring-loaded element (18), with a spring-loaded blocking lever (25). A locking lever (9) is locked to a support wall (8) etc. on the baseplate, when the saw disc is completely lowered. In this position of the saw disc, the blocking lever may be locked to the support wall, by an actuatable blocking member. This is formed as a spring-loaded bolt etc, which may be moved into its inactive position. USE/ADVANTAGE - Simple change of tool, eg. circular saw, with no undesired switching-on of motor.
Patent DE-4133266-A1 (DE)
Title: Plaster protective cover for flush-mounted bathroom fitting
Inventor: BERGMANN KONRAD DR
IPC: E03C1/042
Filed: 1991-10-08
Abstract: The protective cover (5) is enclosed by a watertight, sleeve-type sealing part (3) which on the wall side has a ring flange (11) locating on the wall, which is embedded into a sealing layer (2) fitted after the installation of the concealed body (10) as basis for a connecting tiling (1), and seals the edge of the installation aperture for the concealed body.The sleeve-type sealing part is formed as connections which engage over the protective cover. After removal or shortening of the protective cover, an elastic closure ring is insertable in the room-side face end of the shortened sealing part, which seals the sealing part against a visible rosette for covering the control (22) of the fitting.
Patent DE-4134580-A1 (DE)
Inventor: GIESE BURKHARD
IPC: H01H33/36
Filed: 1991-10-17
Abstract: It is intended to create a device for braking the rotary movement of a shaft (1) in the drive system of a high-voltage circuit breaker, which device is of space-saving and simple construction. For this purpose, the shaft has an attachment (2) which is constructed as a gearwheel and has a recess (3), the edges (8, 9) which bound the recess (3) moving past fixed-position stop blocks (12, 13), without touching them, each in one rotation direction. A stop body (7), which is constructed as a crossbar, is displaced on guide rods (8) up to one of the stop blocks (12, 13) in the respectively other rotation direction, by the edges (8, 9). The moving stop body (7) there forms a fixed-position stop for one of the edges (8, 9) of the gearwheel (2), with one of the stop blocks (12, 13). The invention is used in the field of high-voltage switching installations. <IMAGE>
Patent DE-4138552-A1 (DE)
Title: Cigarette end testing appts. using HF capacitive field - has ceramics plate used to align ends of cigarettes with HF electrode for measuring tobacco packing density
Inventor: SCHROEDER DIERK DR
IPC: A24C5/34
Filed: 1991-11-23
Abstract: The testing device has a testing conveyor transporting the cigarettes (2) perpendicular to their longitudinal axes, at a given relative spacing, past a stationary capacitive measuring device with HF electrodes (11), for measuring the tobacco packing density. A positioning device aligns the cigarette ends with the HF electrodes and uses a ceramics guide surface on the side of the HF electrodes facing the cigarettes. Pref. a guide surface (6) is provided by the front face of a ceramics plate (9), with the HF electrodes applied to its rear face (12) via a thick-film technique. ADVANTAGE - Improved consistency of abrasion, dielectric constant, temp. characteristics and loss angle of positioning system.
Patent DE-4142214-A1 (DE)
Title: Synchronisation control in tripod construction - has friction reducing elements between roller carriers and rollers, acting against relative rotary movements and applying relative axial forces
Inventor: DAMIAN KARL DIPL ING
IPC: F16D3/205
Filed: 1991-12-20
Abstract: Friction-reducing elements are located between roller carriers (137) and rollers (140). These act against relative rotary movements between the two, and apply relative axial forces. A roller bearing (145,146) is located between one end face of a roller, and an opposite surface of a retainer element, fastened to the roller carrier. The roller of the roller bearing s held in a cage (147) and is either a ball or a conical needle. A holder (185) with a reduced sliding friction is located between a roller end face and a face of the roller carrier. ADVANTAGE  - Excitation forces are reduced due to slide friction in joint.
Patent DE-4200024-A1 (DE)
Title: Corner elements for protecting stacks of panels during transport - have ribs which fit between adjacent panels and held in place by straps
Inventor: NAGEL ULRICH
IPC: B65D71/02
Filed: 1992-01-02
Abstract: Flat rectangular panels (2) are formed into a stack which is secured by straps (3) which pass completely around the stack. The stack can then be conveniently transported and the corners of the stack are protected from damage by corner elements. Each corner element (4) has three mutually perpendicular surfaces forming three sides of a cube. A rib (7) parallel to one of the sides (12) projects at right angles from the other two sides and fits between two adjacent panels. The element is thus held in place when the panels are pressed together by the strap. USE/ADVANTAGE - The panel corners are protected by elements which require no special fixings.
Patent DE-4202862-A1 (DE)
Title: Cracking plastics scrap for reuse - using low temp., low pressure plasma
Inventor: BARICH GERHARD PROF
IPC: B01J19/08
Filed: 1992-02-01
Abstract: Cracking clean-sorted or clean-plus-contaminated plastics scrap for re-utilisation, is effected in low pressure plasma at low temp., pref. at 0.1-10 mbar or above and room temp. to 300 deg.C. Pref. low or high frequency (e.g., microwave) oxidising or non-oxidising plasmas can be used. The plasma gas is O2, CO2, air, halogens, inert gases, or H2 (opt. admixed with inert gas or N2). The appts. has units for plasma prodn., cracking gas purificn. etc., the plasma chamber pref. being rotary kiln or trickling column, each with, e.g., Al oxide or quartz windows and e.g., a microwave transmitter. The cracked gases are removed, e.g., with pump and cleaned using dust remover, HCl washer with recovery unit, SO2 washer, NO reducing catalyst, filter and/or actuated carbon. ADVANTAGE - Various types of plastics scrap can be recovered for re-use without prodn. of large amts. of highly toxic, environmentally-unfriendly gase
Patent DE-4202901-A1 (DE)
Title: Optical absolute angle encoder - has multiple track code, e.g. Gray code, adjacent to analogue code, and photocell array sensing both scales
Inventor: FRENK HELMUT DR
IPC: H03M1/24
Filed: 1992-02-01
Abstract: The angle encoder has a multiple track code, e.g. a Gray code, immediately adjacent to an analogue code of scale strips inclined w.r.t. the radius, and a photocell array arranged radially to sense both scales. A square wave generator is operated at a frequency fs/2a, where fs is the shift frequency of the CCD array and a the number of pixels per binary track. The CCD video signal is serially fed into a further shift register and the binary signal read out at the parallel outputs after n steps, where n is the number of binary bits. ADVANTAGE - Reduced number of binary tracks for required resolution. Simplified coding and adjustment.
Patent DE-4204289-A1 (DE)
Title: Digital processing system to improve sound reproduction - provides delay of signals to compensate for reflection effects with signal coefficients set by computer
Inventor: JANG SEONG-CHUL
IPC: H04S7/00
Filed: 1992-02-13
Abstract: An acoustic field, such as that produced when music is reproduced in a hall, is controlled by a signal processing system. The input signals (L, R) are converted (101) into digital form for processing (106) and coefficients are used that are set by a microcomputer (104) with keyboard entry. For control purposes the input signals must be delayed for a given time and a RAM is used for this purpose. The signals are processed and reproduced as front (FL', FR') and rear (RL', RR") digital channel signals. These are converted to analogue form for output using D to A converters (107, 108). ADVANTAGE - Improves reproduction sound quality.
Patent DE-4206506-A1 (DE)
Inventor: LAUFENBERG ALFRED DR
IPC: C10M173/02
Filed: 1992-03-02
Abstract: Non-soap lubricants on the basis of amphoteric compounds, primary, secondary and/or tertiary amines and/or salts of such amines having the general formulae (I), (IIa): R<4>-NH-R<5>, (IIb): R<4>-N<+>H2-R<5> X<->, (IIIa): R<4>-NH-(CH2)3NH2, (IIIb): R<4>-NH-(CH2)3N<+>H3 X<->, (IIIc): R<4>-N<+>H2-(CH2)3N<+>H3 2X<->, (IVa): R<4>-NR<7>R<8> and/or (IVb): R<4>-N<+>HR<7>R<8> X<-> contain alkyl dimethylaminoxides and/or alkyloligoglycosides as non-ionic surface-active agents.
Patent DE-4208098-A1 (DE)
Title: Seal for heating oil ventilation valve - using float shaped as inverted pear with circular base which locates into inclined recess.
Inventor: UHL WOLFGANG DIPL ING
IPC: E03F5/04
Filed: 1992-03-13
Abstract: The floating polymer seal (7) has a downward tapering circular lower section (12) and is located in an opening (4) underneath to form a seal. The sides of the opening are inclined outwards at 10 degrees from the vertical. The upper body of the float can be of two truncated cones (10,11) joined at their widest section and its movement is controlled by a guiding chamber (5,8). USE/ADVANTAGE - Sealing device for heating oil ventilation valve increases security of seal being formed.
Patent DE-4210198-A1 (DE)
Title: Melt texturing of high temp. superconductor - in form of porous starting material prepd. from powder
Inventor: RISSE GUNTER
IPC: H01L39/24
Filed: 1992-03-28
Abstract: Melt texturing of high temp. superconductors is carried out on a starting material with more than 50% porosity, which has been produced from a YBaCuOx powder of less than 0.7 sq.m./g specific surface and which is in contact with a solid surface. ADVANTAGE - The process produces a single growth front, which advances 123 phase growth through the entire material and thus leads to directional crystallisation of the 123 phase, and suppresses formation of other 123 nucleation centres beyond the growth front.
Patent DE-4219514-A1 (DE)
Title: Regenerative braking system for vehicle - has air compressor coupled to transmission during braking or with throttle fully released.
Inventor: KUHN REINHOLD
IPC: B60T1/10
Filed: 1992-06-13
Abstract: The vehicle transmission has a special clutch (3) behind a freewheel unit (5) to engage an air compressor (4) when retardation is required. The freewheel unit separates the engine from the drive and allows the engine to run with idling speed. The freewheel unit and clutch are in line coaxial to the main transmission shaft. A low friction thrust bearing (2) engages the air compressor clutch. A thrust lever driven by a linear motor (1) drives the clutch action. The linear motor is electrically controlled. The compressed air can be supplied continuously or in bursts. ADVANTAGE - Simple energy reclamation system, assists braking action. Saves fuel or limits performance.
Patent DE-4219990-A1 (DE)
Title: Adjustable frequency voltage controlled oscillator circuit - has first stage oscillating at constant frequency, followed by second stage with capacitor diode.
Inventor: MAIER GERHARD
IPC: H03B1/00
Filed: 1992-06-19
Abstract: The circuit has a first stage (10) oscillating at a constant frequency. A second stage (20) with a capacitor diode (26) follows the first stage, oscillating at a constant frequency generating output signals with an adjustable frequency value. Pref. the first oscillator stage is in the form of a Colpitts oscillator, and/or the second stage is in the form of a lambda-quarter oscillator. When used as frequency converter, it is of a double type, whose first part converts an input frequency into a higher intermediate one, while its second part converts the first intermediate frequency into a second one. USE/ADVANTAGE - For frequency converter. TV signal processing. Output signal frequency changed by DC control signal.
Patent DE-4221101-A1 (DE)
Inventor: PETIO FRANZ-ADOLF DR
IPC: F27B3/14
Filed: 1992-06-26
Abstract: The invention concerns a refractory ceramic compound for lining the floors of electric-arc furnaces, the compound consisting of a refractory matrix material containing a certain proportion of finely divided metallic iron.