baber/WOPTO huggingface dataset:
Patent DE-4015850-A1 (DE)
Title: Sodium or potassium aluminosilicate zeolite hydrothermal
Inventor: HACHGENEI JOHANNES W DR
IPC: C01B39/02
Filed: 1990-05-17
Abstract: Zeolite Na or K aluminosilicates (I) are of formula: M2O . Al2O3 . xSiO2 (I) (where M = Na or K; x = 1.5-12): and have a water content depending on the deg. of drying Zeolite aluminosilicates are obtd. by hydrothermal synthesis from sources of SiO2, Al2O3 and Na2O or K2O in aq. alkaline systems. Conditioned sand dissolved in aq. NaOH or KOH soln. at elevated temp. is used as SiO2 source. The sand is pref. dissolved in aq., pref. 40-55, esp. 50 (wt.)% NaOH or KOH soln. at the b.pt. The Al2O3 source is aq. Na or K aluminate soln.
Patent DE-4025379-A1 (DE)
Title: Cutting hard-setting block with wire - by cutting when hardening or curing stage is advanced enough to take loads but soft enough for quick cutting
Inventor: INCEL ZEKI
IPC: B29C35/02
Filed: 1990-08-10
Abstract: Profiled component is produced from a raw block by means of a cutting wire. Material contg. e.g. a thermosetting type of binder is used to make the raw block which is cut with the wire while it is in the process of curing and at a particular moment when the block is already stable a though still not completely cured/hardened. Pref. granules of e.g. ground scrap plastic materials, wood/sawdust, paper, sand, glass fibres etc.  are used to make the raw material when they are mixed with a suitable hard-setting binder, whether hot or cold-acting, organic or water/cement mixt. Suitable container is filled with this mix and consolidated, vibrated or pressed and is heated if the binder requires.  As soon as the mixt. is firm enough to retain, its shape its mould is opened and the non block-shaped raw sheet is cut to the desired profile with a wire. As it has not yet fully cured it is easier to cut than when fully cured. ADVANTAGE - Method enables a wire-cut process to be carried out with materials which are harder and therefore capable of taking heavier loads than hitherto whilst still not losing any of the advantages of the procedure.
Patent DE-4025857-A1 (DE)
Title: Measurement arrangement for electrical components on carrier - has sprung metal yoke contacts holding component carrier on contact block
Inventor: KIMMERLE JOACHIM KARL ERNST DI
IPC: G01R1/04
Filed: 1990-08-16
Abstract: A measurement arrangement for the electrical components mounted on a carrier with at least two electrical contacts contains a block (1) of electrically insulating material which can carry at least two electrical contacts, each of which partially covers the block. At least one of the contacts is in the form of a sprung metal yoke for making the electrical connection with at least one of the electrical contacts of the carrier and for holding the carrier on the block. USE - Measurement of opto-electronic components integrated wither monolithically or as hybrid into carrier.
Patent DE-4028412-A1 (DE)
Inventor: HOEFLE SIEGFRIED
IPC: F16L3/123
Filed: 1990-09-07
Abstract: The pipe clamp consists of a clamp body (1) whose outwardly directed ends form flanges (1a, 1b) which can be clamped together. While a closing bolt (3) is fixed in a flange (1a) via a thread (2), the other flange (1b) has an unthreaded opening (4) for the head of the closing bolt (3). A covering plate (5), which is supported such that it pivots, is connected to the flange (1b) and is used for partially covering the unthreaded opening (4) once the head of the closing bolt (3) has passed through. This results in the creation of a support, which reduces the assembly time and eases handling, for the head of the closing bolt (3). <IMAGE>
Patent DE-4032475-A1 (DE)
Title: paper sheet perforating machine - punches holes in paper for filing and sticks reinforcement strip around hole
Inventor: HASHIDA YOSHISUKE
IPC: B42F3/00
Filed: 1990-10-12
Abstract: The sheet perforating machine punches holes for filing and stocks a reinforcement strip around the hole. A component (22) bends the sheet (91) to an acute angle, and an accessory (23) detaches it and holds the reinforcement strip. All operations of the machine are performed automatically. USE/ADVANTAGE - Paper sheet perforating and reinforcing machine. The reinforcement prevents the hole being torn or distorted.
Patent DE-4033047-A1 (DE)
Title: Sepg. benzene from di:chloroethane recovered from vinyl] chloride mfr. - by flash-evapn. of part of the column bottom prod., chlorinating in presence of iron and distilling with the unpurified part
Inventor: RECHMEIER GERHARD DIPL CHEM DR
IPC: C07C17/38
Filed: 1990-10-18
Abstract: Sepg. benzene form the 1,2-dichloroethane (DCE) recovered in the prodn. of vinyl chloride (VC), after sepg. the VC and HCl; comprises dividing the DCE from the bottom of the VC column into an unpurified prod. stream (A) and a prod. stream (B) from which high-b.pt. substances have been removed, treating the purified stream (B) with chlorine in the presence of metallic Fe at 30-85 deg.C, recombining this stream with stream (A) and sepg. the DCE from the high-b.pt. substances in a further purificn. step. Pref. 30-35 wt.% of the DCE is in the purified stream (B), which is sepd. from the bottom prod. from the column by flash evapn.; the bottom of the VC column is expanded from 5-7 bar to normal pressure and the gas phase obtd. is condensed to form stream (B); amt. of chlorine is 1.5-15 (pref.  5-7) g/kg DCE; stream (A) is also treated with chlorine at 30-85 deg.C, then the two treated streams are recombined and sepd.  from high-boiling cpds. as above; stream (B) is treated with 1-10 (pref. 3-4) g chlorine/kg DCE and stream (A) is treated with 0.5-5 (pref. 2-3)g chlorine/kg DCE in separate treatment zones; mean chlorination time is 2-10 (pref. 3-6) mins.; before further purificn. stream (B) is allowed to react further in a holding zone, pref. for 2-10 (esp. pref. 4-6) mins. at 50-85 deg.C. USE/ADVANTAGE - The process enables the sepn. of benzene from the DCE recovered from the prodn. of VC by thermal cleavage of DCE (no prior-art processes exist for removing this by-prod).
Patent DE-4040716-A1 (DE)
Title: Collecting tub for safety device - in household washing machine etc. is also baseplate of appliance
Inventor: BOLDUAN EDWIN DIPL ING
IPC: D06F39/08
Filed: 1990-12-19
Abstract: The collecting tub is for a safety device in a household washing machine, dishwasher, etc.. The tub is, at the same time, the baseplate of the appliance and has a large area for leak water collecting with several openings for the fastening of many components and aggregates. All the openings lie - partly through curved sections directed upwards - above the safety level registered by the safety component. The water collecting area is surrounded by an upwardly drawn corrugation. ADVANTAGE - The collecting tub design significantly reduces prodn. costs for the appliance.
Patent DE-4041068-A1 (DE)
Title: High strength ball bearing cage - made from material contg. fibre-reinforced polyphenylene sulphide and opt. fluorine-contg. resin
Inventor: UMEMOTO NOBORU
IPC: F16C33/44
Filed: 1990-12-20
Abstract: A cage for ball-bearings is made from a fibre-reinforced material obtd. by crosslinking a polyphenylene sulphide (PPS) resin of melt viscosity 35-300 Pa.s, the material opt. also contg. an F-contg. resin. The crosslinked PPS resin pref. has a melt viscosity of 140-200 Pa.s and the material pref. has (i) a breaking deflection of 3.3mm or more in an ASTM D790 bending strength measurement at room temp. and (ii) an ASTM D790 bending modulus of 150 kg/mm2 or more at 200 deg.C.. ADVANTAGE - The material has high strength and good resistance to chemicals combined with good flexibility; it can therefore be easily mounted and shows little deformation at high temps..
Patent DE-4042349-A1 (DE)
Inventor: ZWICK AXEL DIPL ING
IPC: C21D1/09
Filed: 1990-06-08
Abstract: Described is a process for treating the surfaces of workpieces (12) by using laser radiation (10) to heat edge zones, in particular for treating shafts for motor vehicles. The process calls for a laser beam to strike the surface (13) of the workpiece at an angle of incidence which is other than zero, producing an oval light spot (14), the beam being moved at right angles to it. In order to be able to work at high speed and produce products of high quality, linearly polarized laser radiation (10) is used and, to optimize the transfer of energy into the workpiece (12), the angle of incidence ( alpha 2) in at least one sector (15) of the light spot (14) differs from the angle of incidence ( alpha 3) in the other sectors (e.g. 16) of the light spot (14).
Patent DE-4042442-A1 (DE)
Title: Laminar material structure - comprises pattern and covering layers interrupted at same intervals
Inventor: KUDRUS HEINER
IPC: B32B3/22
Filed: 1990-08-14
Abstract: The laminar material comprises a pattern layer (2) interrupted at regular intervals, and above which is a covering layer (4). The covering layer is interrupted at the same intervals as the pattern one, which can be mounted on a base (6). An intermittent layer of adhesive (8) can be provided, securing layers and base together. The material can be wound into a coil in the lengthwise direction, the sections (12,10) in the layers being in line with each other in this direction. ADVANTAGE - Simple to produce, and minimum wastage of material.
Patent DE-4107957-A1 (DE)
Title: Print ribbon cassette with exchangeable spool - has support on spring-biased level providing accurate location in housing
Inventor: ORLAMUENDER HARTMUT
IPC: B41J32/02
Filed: 1991-03-13
Abstract: A print ribbon cassette has a spool (11) located on a spindle (12) mounted at the end of a lever (9). Also supported on the same pivot point (8) as the lever, a stripping element (13) is in contact with the spool. The ribbon is transferred from the spool via guides (5,3.1,3.2) to a drive (6) and contact (7) roller pair. As the ribbon is used the dia. of the spool reduces and the lever support, which is spring-biased, moves nearer to the housing wall. Replacement of the spool can be made by opening the housing. ADVANTAGE - Reliable guidance of spool which can be removed.
Patent DE-4110301-A1 (DE)
Inventor: KRIEGER KURT
IPC: F23D14/14
Filed: 1991-03-28
Abstract: The invention concerns a burner grid (1) for a radiant burner designed to burn a gas/air mixture. The channels (2, 3) through which the gas/air mixture enters the burner grid (1) from the rear have different dimensions and/or shapes in order to avoid the production of undesirable noise when the burner is in operation. In particular, the channels (2, 3) can differ from each other in their cross-sectional size, their cross-sectional shape and/or their length. The different channels (2, 3) can be disposed in the burner grid (1) either in an irregular pattern or arranged in a particular order.
Patent DE-4116254-A1 (DE)
Title: Brushless DC motor controller - avoids overheating of transistors by adjustment of frequency at which these are pulsed for switching of three=phase stator currents
Inventor: OHI SHINICHI
IPC: H02P6/08
Filed: 1991-05-17
Abstract: The three excitation windings (2a-2c) on the stator (2d) are fed with current from a control circuit (3) contg. six transistor switches (3a-3f) gated by outputs (5a-5f) of the controller (5) responsive to rotor position signals (4), when current control logic (12) is enabled by pulses from a generator (7). The pulse duty ratio is set by a variable resistor (8), and the frequency is controlled by a parallel combination (9) of a resistor (11) and a PTC thermistor (10) in close proximity to the driven transistors (3b,3d,3f). ADVANTAGE - Uniform rotation is maintained so that temp. of transistors does not exceed safety limit.
Patent DE-4116401-A1 (DE)
Title: Self-observation of fundus of eye in region of yellow spot - facilitates observation of fine blood vessels of choroid also microscopic haemorrhages and irregularities of funous of eye in region of yellow spot
IPC: A61B3/12
Filed: 1991-05-18
Abstract: The rear eye pole or the yellow spot is illuminated by light beams with cyclically alternating direction of incidence, using a weak light source (L) movable in a circle, which is projected unfocused on the retina. The light source moved in a circle, which is held at a short distance from the pupil, comes in to operation, with the use of LEDs, which are arranged at the circle, and are electronically applied one after the other for the illumination. A mechanical shutter with a small aperture working as a light source can be moved in a circle. A mechanical light wave conductor moved in a circle can be used, the light outlet end of which acts as the light source. ADVANTAGE - Very simple engineering means are used, absolutely no danger in method and permits self testing.
Patent DE-4118266-A1 (DE)
Title: Four wheel drive transmission system - is for transverse engine and controls distribution of power to front and rear axle
Inventor: DIESSNER EBERHARD DIPL ING
IPC: B60K17/346
Filed: 1991-06-04
Abstract: The four-wheel drive transmission system is for a motor vehicle with a transversely mounted engine (10) and gearbox (12). The gearbox (12) is arranged so that its input and output shafts are parallel to the output shaft of the engine. The transmission system distribates the engine power to the front and rear axles. The drive is transmitted to the rear axle through bevel gears and a cardan shaft. The power  distributing mechanism consists of a compensating gear train (17) enclosed in a housing (16). An epicyclic drive (15) with gears (21,24,25) is mounted immediately alongside the housing (16) or is enclosed in it. USE - Four wheel drive on vehicle with transverse engine.
Patent DE-4125902-A1 (DE)
Title: Test rig for hydraulic brakes - has pneumatic double action cylinder to generate controlled hydraulic pressure, and brake reaction monitor
Inventor: MOSEN WALTER
IPC: B60T8/90
Filed: 1991-08-05
Abstract: The controlled hydraulic pressure is generated by a pneumatic cylinder (10), with controlled pneumatic pressures on either side of the piston (12). The piston is linked to a hydraulic piston (22) which provides the hydraulic pressure for the brake unit (28) under test. The actual hydraulic pressure is measured, as is the brake reaction. A pressure sensor (40) in the brake line and a reaction monitor (42) on the brake unit are linked to the control unit (44). This operates the control valve (52) for the pneumatic pressure via a test program. ADVANTAGE - Rapid testing of brake units without having to assemmble into vehicle, also tests dynamic brake reaction.
Patent DE-4127741-A1 (DE)
Title: Permeate cleaning liquid - produced by ultrafiltration of electro-painting electrolyte
Inventor: JOERGENS KLAUS
IPC: C25D13/24
Filed: 1991-08-22
Abstract: Permeate produced by ultrafiltration of electrolyte liquid used for electrophoretic painting is used as cleaning liq. for cleaning parts of plant, mechanisms, and objects which come into contact with the electrolyte liquid. ADVANTAGE - More economic method of using permeate than waste disposal.
Patent DE-4128056-A1 (DE)
Title: Firing charge unit - has pot-shaped firing cover and similar plastics cover with bulge held in engagement with groove on inside firing cover
Inventor: SIKORSKI GUENTER
IPC: F42B3/24
Filed: 1991-08-23
Abstract: The pot-shaped metallic cover (1) accommodates a charge (3) in its interior and has a filling aperture (2) closed by a cover (5). The unit has, around the filling aperture, an internal circular groove (4) and the cover has a pot-shaped plastics part with a bulge (7) engaged with the groove. The cover (5) is engaged with the inside of the cover by a pressed-in metallic holder ring (8). The groove (4) has a sharp edge with which the holder ring squeezes the bulge (7). The holder ring (8) next to the cover (5) has an all-round sawtooth formation. USE/ADVANTAGE - For military applications. Is simply formed, and requires no essential weakening of the cover wall.
Patent DE-4132967-A1 (DE)
Title: Linear mechanical regulator appts. - is for wind power plant rotor blades and is of centrifugal type adjusting blades indirectly via mechanism
Inventor: DIECK MICHAEL
IPC: F03D7/02
Filed: 1991-10-04
Abstract: The centrifugal regulator comprises a movable rod (1), a centrifugal wt. (2), a counter spring (3), and a regulator bar (4). It moves during increasing speed by the regulator bar being pushed forward over a gearwheel-crank-gear consisting of a link connecting rod (5), a large gearwheel (6), a small gearwheel (7), and a control connecting rod (8) comprising a control head (9) and a connecting rod (10) for each rotor blade. The gear-wheel-crank-gear converts the linear movement of the regulator bar into one which in non-linear, which is effective in the control head (9). The regulating mechanism is located in the eheoretical speed position if the crank rod of the small gearwheel (7) locates with the control connecting rod (8) on an axis and if the control head is pushed outwards as widely as possible. USE - To regulate the pitch of the rotor blades of a wind power plant.
Patent DE-4135128-A1 (DE)
Title: Large or medium format camera with inbuilt automatic setting - accommodates all measurement, setting, image conversion, and parameter display components within camera
IPC: G03B7/0997
Filed: 1991-10-24
Abstract: The construction for large and medium format cameras has a two-piece bellows-connected cassette frame (6,20) housing components for comprehensive measurement/display of relevant photographic parameters and an electronic image converter for the external video presentation of a field appearing on the focusing screen (4). Having set the screen in the image plane, the required settings of the system for the measurement of light value by a charge coupled device (ccd) and for the converter (12) optics is automatically achieved by the programmed interval electric drives without adjustment of the support (16,18). USE/ADVANTAGE -Enables important points of focusing screen image to be measured in terms of colour temperature with automatic light proofing of interior driving measurement. Automatically positions light sensor accurately in image plane and indicates depth of focus on screen. Accurate exposure.
Patent DE-4200924-A1 (DE)
Title: Clamping device for pedal of bass percussion drum - comprises rotatable clamp with relatively pivotable jaw exerting grip on collar of drum irrespective of thickness
Inventor: HOSHINO YOSHIHIRO
IPC: G10D13/02
Filed: 1992-01-16
Abstract: The pedal (23) is pivoted at the rear end of a seating board (21) on the floor behind a stand (27) carrying two supports (22), between which the clamping device (10) is arranged. The body (28) of the drum (26) has a conventional collar (29) which is gripped by the jaw (14) of a metallic or rigid plastics lamp (12), tightened by rotation of a T-bolt (13). The clamp (12) is rotatable on the stand (27), and its jaw (14) has a concave-convex or toothed slip proof surface (19). ADVANTAGE - The device guards against pedal instability due to wobble of the drum body under vibration.
Patent DE-4220077-A1 (DE)
Title: Micro-pump for delivery of gases - uses working chamber warmed by heating element and controlled by silicon wafer valves.
Inventor: TRAH HANS-PETER DIPL ING DR
IPC: F04B19/24
Filed: 1992-06-19
Abstract: The micropump has a working chamber (1), an inlet valve (2) and an outlet valve (3). The valves are constructed from silicon wafers (4,5). The gas in the working chamber is warmed by a heating element (6) to produce an overpressure in the working chamber. On cooling the gas in the working chamber a negative pressure is created, and the sequence of overpressure and negative pressure cycles is repeated to produce the pumping effect. USE/ADVANTAGE - Pump for the delivery of gases which has small dimensions and is capable of pressures of a few hundred millibars.
Patent DE-4223917-A1 (DE)
Title: Reaper for attaching to front of tractor - has input drive mechanism coupled to two lateral transmission shafts and subsidiary drive mechanisms
Inventor: RAUSCHER SIGURD ING
IPC: A01D34/66
Filed: 1992-07-21
Abstract: The reaper (1) is coupled by a frame (3) and bearer arms (24, 24') to the front coupling of the tractor. A transverse casing (12) couples together four reaper heads (11) which are driven by a central mechanism (5). An articulated input drive shaft (8) is connected to the output drive of the tractor at one end, and to the central mechanism at the other end. Lateral transverse articulated shafts (9, 9') transmit the drive from the central mechanism to the subsidiary drive heads (10, 15). The input drive shaft and the central drive mechanism are in line with the longitudinal centre plane (13) of the machine. USE/ADVANTAGE - The reaper assembly is attached as a whole to curved brackets and rollers which enable it to swing upwards to avoid obstacles on the ground.
Patent DE-4224855-A1 (DE)
Inventor: BLUM ALBERT
IPC: E04H6/42
Filed: 1992-07-28
Abstract: In a building (1) for the automatic entry and exit of items or motor vehicles (3) with several superimposed and adjacent storage spaces, several conveyors for transporting the vehicles (3) and several entry and exit compartments arranged in a separate plane, the entries and exits form accessways to the conveyor. The entries and exits in the entry and exit plane are staggered in such a way that there are at least two mutual parallel passageways (8) or conveyor tracks in this plane which run at an angle to the longitudinal extension of the individual entry and exit compartments. It is thus possible to arrange any number of storage spaces adjacent to, behind and above one another without the need for free spaces between storage spaces arranged one behind the other. In particular, the space above and/or beneath the entry and exit ways can be largely used for storage spaces. The passageways (8) can be used at the same time as entry and exit ways, in one direction only.
Patent DE-4225193-A1 (DE)
Title: Insulating boards for lining walls and ceilings etc. - made by a wet process from a mixt. of cellulose material, vermiculite, binder, clay, perlite, and flocculating agents
Inventor: HABLE EDUARD
IPC: C04B26/06
Filed: 1992-07-30
Abstract: Ceiling boards etc. for lining rooms are claimed (I), with density 120-500 kg/cm3 and consisting of 2-15 wt.% cellulose material (II), 30-70 wt.% vermiculite (expanded mica), 4-10 wt.% binder, i.e. starch, waterglass and/or acrylate dispersion, 10-40 wt.% clay mineral, 0-20 wt.% filler in the form of perlite, and flocculating agent. (I) is made from a suspension of minerals, additives, binders and water (see above), by a wet process in which the suspension is passed along a dehydrating section on a continuous screen belt to form a layer of preset thickness and then through a drying zone to give a sheet (I) which is at least fire-resistant, sound-insulating and heat-insulating. Pref. (II) is waste paper and/or a biological raw material such as straw, flax etc.. USE/ADVANTAGE - The invention provides fire-resistant insulating board or sheet for lining walls and ceilings etc.. This board has properties (mechanical strength, including long-term strength, resistance to variations in temp., atmos. moisture, sunlight, etc.) which are identical to those of prior-art mineral fibre board, but contains no potentially harmful mineral fibre or wool. In addn., the process uses a recycled or renewable raw material (see below), and the water filtered off through the screen is recycled to stage (b).