baber/WOPTO huggingface dataset:
Patent DE-3916489-A1 (DE)
Inventor: MERGENTHALER ROBERT
IPC: C08F8/50
Filed: 1989-05-20
Abstract: In a braking installation with a main brake cylinder (1), two braking circuits and an anti-lock and drive slip control device, these controls are operated by a feed pump (32). This feed pump (32) is linked to a store (19) which is connected via a precharging pump (22) and a valve (25) to a container (21) for a pressure medium. After a drive slip control operation, the pressure medium is fed back directly into the container (21) from wheel brake cylinders of (12b, 12c) via a magnetic valve (62). The line between the magnetic valve (62) and the wheel brake cylinder (12b, 12c) is connected to the line (61) to the valve (25) downstream of the precharging pump (22). The last-mentioned connecting line (61) opens between the valve (25) and the another valve (26), thus providing a further connection (47) to one of the brake lines (11, 46) via another valve (48).
Patent DE-3920494-A1 (DE)
Title: Illumination with mains adaptor for optical system - has two lamps on rotary body, with positioner for each lamp and rotary drive
Inventor: LEMKE NORBERT
IPC: A61B46/10
Filed: 1989-06-22
Abstract: The illuminator has two lamps and a socket for bringing the second lamp in position, on the first lamp failure.  The lamps are fitted on a rotary body, a rotator, and a positioner for each lamp.  The rotator provides a torque for the rotary body round its central axis. Each positioner. can bring the rotary body into a presettable position.  The positioner(s) is so controlled that a first positioner is switched off on failure of the first lamp, while the second positioner is switched on.  Thus the rotator revolves the body until the second lamp has assumed the position of the first one. USE/ADVANTAGE - For medical application etc., with fully automatic lamp exchange.
Patent DE-3923504-A1 (DE)
Title: Undercutting of holes in masonry - involves tool with adaptor which projects through facade
Inventor: FISCHER ARTUR PROF DR
IPC: B23B51/00
Filed: 1989-07-15
Abstract: The recess (7) is fixed to masonry by anchor bolts which are inserted into undercut holes drilled in the masonry. The holes in the masonry are undercut by a tool (2) with a convex longitudinal contour (12). This tool (12) is rocked from side to side as it is rotated by means of a power drill. In order to rotate the tool (2) when the facade (7) is in place the tool has a screw thread (4) to receive an adaptor (1) which projects through the facade (7) and has its upper end (3) shaped to fit the chuck of the power drill. USE - Undercutting holes in masonry.
Patent DE-3924238-A1 (DE)
Title: Glass element mfr. - prevents traces of knife cut by faster lowering of capturing mould
Inventor: KODAMA KAZUAKI
IPC: C03B7/12
Filed: 1989-07-21
Abstract: The traces of a knife cut, to sever a stream of molten glass, remain on the cut-off part and require laborious grinding and polishing to remove them eg from lenses.  This is remedied by dropping the molten glass in a mould which descends faster than the pouring velocity of glass, after a certain amt has been accumulated. ADVANTAGE - This saves all grinding and polishing operations required to remove the traces of a mechanical cut from the parison.
Patent DE-3924546-A1 (DE)
Title: Illuminated umbrella with improved visibility - has attached light source powered via batteries contained within umbrella handle
Inventor: SCHMAILZL CHRISTL
IPC: A45B3/04
Filed: 1989-07-25
Abstract: The umbrella has a light source attached to the top end of the umbrella stem and supplied with current via batteries housed within the umbrella handle.  The latter incorporates a switch for the light source, the umbrella stem pref. made of metal for acting as the current conductor for linking the light source to the battery. Pref. the end of the umbrella handle is formed as an ON-OFF push-button switch for the light source. The latter may use a white, red or yellow light bulb. ADVANTAGE - Improved visibility in poor weather conditions.
Patent DE-3928398-A1 (DE)
Title: Butt welding rail section for improved fatigue strength - using copper support brackets at base and side to enable prodn. of fatigue resistant weld
Inventor: BRAUN CHRISTIAN DR
IPC: B23K9/038
Filed: 1989-08-28
Abstract: Butt welding supported sections, esp. for railways, consists of fixing the position of two sections with clamps so that a gap exists between the two butted ends, fixing a copper support (3) under the ends of the sections, welding a root bead followed by furthe
Patent DE-3931920-A1 (DE)
Title: Coupling or thrust piece - has balls in holes in flange, and has pressure ring against main shaft, with screws
Inventor: SCHILD DIETER
IPC: F16B2/18
Filed: 1989-09-25
Abstract: The coupling or thrust-piece consists of balls (20) in holes (19) in a flange (18). The balls (20) are pressed by means of a sloping surface (23) on a pressure-ring (22) against the main shaft (15) to which it is being joined. The pressure-ring (22) is moved axially and joined to the flange (18) with holes (19) in, by means of screws (24) or other fixtures. The balls (20) are harder than the main shaft (15) so that they press into the main shaft (15). The dia. of the holes (20) is slightly larger than part (21) of the flange (18). USE/ADVANTAGE - The coupling can be used with thin-walled hollow shafts for securing coaxial shafts to a main shaft so that they do not move axially.
Patent DE-3934393-A1 (DE)
Title: Stone cladding tile with electrical heating cable - contains channels with conductors embedded in mixt. of cement and good heat-conductor e.g. aluminium nitrite
Inventor: KRAUSS ROSEMARIE
IPC: H05B3/16
Filed: 1989-10-14
Abstract: The tile, pref. consisting of marble, contains grooves in the back surface within which heating-conductors are placed. The feature is that the embedding mass (17) contains an additive which has a high heat conductivity. The additive is pref. Al-nitrite which has been pref. fired at about 1800 deg. C. The heating conductors (10) pref. consist of 2 parallel conducting cores (11,12) with a round cross-section and insulated individually. They are placed in the grooves such that they lie over each other. They are pref.  contained inside a common insulation envelope. The ferromagnetic conductors are pref. held in the correct position by a magnetic filed applied externally to the tile, after which the embedding material is put in position. USE/ADVANTAGE - The shape of the conductors and higher heat conductivity of the embedding material improves the heat-spreading and reduces thermal stress by reducing temp. differences in the stone. The higher conductivity of the embedding material also improves the rate of heating of the tile and so its response to electronic control. The tiles are used for surface heating in bathrooms.
Patent DE-3935729-A1 (DE)
Title: Conveyor device with chain wheels - has automatic drive and guide rail preventing distortion
Inventor: UEHARA AKIRA
IPC: B65G19/02
Filed: 1989-10-26
Abstract: The conveyor device comprises two rails (2) which are fixed on a number of cross supports (1) which are mounted at suitable distances. A U-shaped guide rail (3) is set in the middle between the rails (2) and is open at the top in the longitudinal direction and has flanges either side of the open side. Chain wheels (4,5) are provided at the front and rear end of the guide rail and an endless chain (6) has its upper run lying in the guide rail and looped round the front and rear chain wheels (4,5). The chain has entrainment pawls spread out at suitable intervals.  A motor (8) on the shaft of one of the chain wheels is controlled by a switchboard (10) by means of a counter or timer. USE/ADVANTAGE - Conveyor device.  The chain is guided more reliably without displacement or turning.
Patent DE-4003305-A1 (DE)
Title: Electric toothbrush with rocking lever for rotation reversal - which occurs periodically as cord connected to lever ends changes direction of movement around brush axis
Inventor: PETZ GUENTER
IPC: A61C17/34
Filed: 1990-02-03
Abstract: The brush head (19) is rotated by a motor (2) whose shaft (10) carries a cylindrical driver (11) with a recess (12) in an inclined surface for two pins (13) jointed to the rocking lever (15). A cord (17) joining the ends of the lever (15) runs over two spring-loaded guidance rollers (22) and around the pulley (18') on the shaft (18) of the brush. The latter rotates through equal angles in opposite directions with the rise and fall of the pins (13).
Patent DE-4005466-A1 (DE)
Title: Idling revolution. control for vehicle IC engine
Inventor: TOYODA KATSUHIKO
IPC: F02D31/00
Filed: 1990-02-21
Abstract: The rev control initiates regulation of the idling revs for maintaining the optimum idling revs, in dependence on the detected throttle opening, the vehicle velocity and the actual engine revs. Pref. The engine intake line (6) contains a throttle valve (8) which can be moved into an idling position, with a bypass line (12) containing a control valve (14) adjusted in dependence on the signal from a rev sensor (24), to maintain the optimum idling revs in an initial regulation mode. A second regulation mode allows the control valve (14) to supply a constant quantity of air to the engine when the idling regulation interia are not fulfilled.
Patent DE-4010161-A1 (DE)
Inventor: BOEHMKE UWE
IPC: C08F8/14
Filed: 1990-03-30
Abstract: The invention relates to a process for the preparation of oil-soluble polymers from ethylene-vinyl acetate copolymers by transesterification by means of higher fatty acids or esters thereof, in which an ethylene-vinyl acetate copolymer having a vinyl acetate content of 10-90% by weight and a molecular weight Mw of 20,000-200,000 is transesterified using C8-C22-fatty acids or esters of said acids, with the proviso that the proportion of C16-C22-fatty acids or esters thereof is not greater than 60 mol%, based on all the fatty acids or fatty acid esters employed.
Patent DE-4011487-A1 (DE)
Inventor: GIESEN BRIGITTE
IPC: C09K23/00
Filed: 1990-04-09
Abstract: Polyglucoses with an average relative molecular mass of between 500 and 70,000, which themselves have no surface-active properties, when in combination with one or more tensides from the group of anionic and non-ionic tensides, intensify the washing and cleaning action of these tensides and/or make it possible to replace part of the tensides without reducing the washing and cleaning action. Preferred tenside mixtures may contain up to 50 % wt. polyglucoses in relation to the sum of tensides and polyglucoses.
Patent DE-4013724-A1 (DE)
Title: Hollow-free core-shell polymer particles for opaque coatings - obtd. by multistage emulsion polymerisation with non-polymerisable liq. aggregate-forming acid present at core-forming stage
Inventor: SCHWARZENBACH ELMAR DR
IPC: C08F285/00
Filed: 1990-04-28
Abstract: Aq. dispersion of opaque, hollow+free particles of dia. 0.07-4.7 microns are obtd. by an at least two-stage emulsion polymerisation of ethylenically unsatd. monomers so as to give water-dispersible core-shell polymer particles, the process comprising (a) a first stage in which the cores are obtd. by emulsion polymerisation of a carboxyl gp.-free ethylenically unsatd. monomer in presence of 5-70 wt.% (based on monomer wt.) of non-polymerisable cpds. (I) which contain acid gps. and which show an liq. aggregated state at below +40 deg.C; and (b) a second and opt. further stages in which shells of a polymer with Tg above 50 deg.C are formed on the cores such that the ratio of the wt. of the cores formed in stage (a) to the total wt. of the particles is 1:4-150. USE/ADVANTAGE - The use of the dispersions is claimed in coating materials, the particles, although being free of holes, being suitable for at least partially replacing inorg. pigments in paints. This process for producing opaque particles is simpler than that of EP-342944, the addn. of a base and heating to above the Tg not being necessary on account of the use of (I) in stage (2).
Patent DE-4014560-A1 (DE)
Title: Negative pressure vehicle braking force booster - has provision of air guidance channels to minimise noise generation during braking
Inventor: FELLINGER ROLF
IPC: B60T13/52
Filed: 1990-05-07
Abstract: The negative pressure braking force booster has a booster housing made of two parts divided by an axially movable wall into a negative pressure chamber and a working pressure chamber. - The retainer (17) in the outlet region of the air conduction channels (25) is provided with air guidance surfaces (26). The movable wall (2) has a noise-damping surface (27) in the region where it is secured to the control housing (11).
Patent DE-4019573-A1 (DE)
Title: Detecting misfiring and/or uneven injection in IC engine - by detecting and evaluating partial pressure of free oxygen in exhaust gas
Inventor: SCHMITZ GUENTER DR ING
IPC: G01M15/10
Filed: 1990-06-20
Abstract: The method involves detecting free oxygen in the engine's exhaust gas and evaluating its partial pressure.  An oxygen probe is mounted in the exhaust gas flow. The region of the null crossing of the probe's output voltage is evaluated. Alternatively, the partial pressure on the reference side of the probe is adjusted so that the sign of its output voltage in normal operation differs from that during misfiring or uneven injection. USE/ADVANTAGE - Detecting threats or damage to catalysers or catalytic coatings. Reliably detects all misfires even for small loads and large numbers of cylinders.
Patent DE-4020318-A1 (DE)
Title: Measurement instrument, e.g. for pH value or dissolved oxygen - has display showing values and operating modes for selection by cursor
Inventor: YAMAUCHI SUSUMU
IPC: G01N27/26
Filed: 1990-06-26
Abstract: A measurement instrument has a display (2) for measured or set values and maintenance operating modes and a keyboard for selecting maintenace modes. Several maintenace operating modes can be simultaneously separately displayed. A cursor (6) can be moved into one of the maintenace operating mode regions of the display to select that mode. The cursor can be moved in mutally perpendicular directions by two keys (7a,7b). ADVANTAGE - Instrument has reduced number of keys. One of a large number of modes can be simply selected.
Patent DE-4028196-A1 (DE)
Title: Compact adjustable storage and display rack for compact discs -  uses sliding end rest to hold discs in upright storage position or angled position to allow customer browsing
Inventor: DOMINGO-VECCHIONI LUIS
IPC: G11B33/04
Filed: 1990-09-06
Abstract: Usually compact disc display racks have individual separators to support each boxed disc at an angle for viewing. This design uses only one support at each end (20, 30), with ridges on the base (2) to hold the lower edges of tilted boxes in place. The movable rest (30) can be brought inwards to hold the discs together for storage. Clips (26) can be used to hold multiple units together in a large display. USE/ADVANTAGE - Compact discs, tape cassettes, etc. More compact and adaptable than existing designs. Can be mfd. as two injection-moulded parts.
Patent DE-4036066-A1 (DE)
Inventor: GRAENICHER PETER
IPC: G01N33/10
Filed: 1990-11-13
Abstract: The milled material flow density measuring system uses a through-flow measuring to determine the permeability, with the mean particle size determined from the permeability by a correlation. Pref. the mean particle size is determined at spaced intervals for feedback regulation of the milling parameters, by extracting a defined sample vol. and measuring its parameters using the through-flow measuring with correction obtained from the difference between the actual and the rated values.
Patent DE-4038682-A1 (DE)
Title: Insulated housing for drinks cans - has inflatable tubular sheath, with base forming tray to one side around which is inflated ridge
Inventor: MOGLER JOACHIM
IPC: B65D81/38
Filed: 1990-12-05
Abstract: The insulated housing for drinks-cans, especially party-beakers, consists of an inflatable, tubular sheath (12) made of flexible material. The sheath (12) encloses the outer casing of the drinks-can (1) coaially, and forms an insulating air-cushion (17) between them. One side of the inflatable sheath (12) has a base (14) which widens (18) out to form a tray beyond the sheath (12) periphery. The outer edge of the tray (18) has an inflatable ridge (19) round it. The sheath (12) outer casing has ridges (22) spaced out. USE/ADVANTAGE - The insulation for the drinks can is economically produced and easily stored.
Patent DE-4041948-A1 (DE)
Title: Stabilisation of technical cellulose ester(s) esp. cellulose nitrate(s) - by breaking down in aq. pulp before or after nitration cycles, using longitudinal waves
IPC: C08B5/08
Filed: 1990-12-27
Abstract: The stabilisation of technically prepd. cellulose esters, esp. cellulose nitrates, characterised in that the cellulose nitride which is in aq. pulp. has already been broken down during or after the nitration cycles. Also claimed is an appts. for carrying out the above process where a frequency producer is immersed in the aq. pulp to form longitudinal waves. USE/ADVANTAGE - Cellulose nitrate is used as a raw material in the prodn. of celluloid. The process results in the redn. of handling for stabilisation and depolymerisation
Patent DE-4042273-A1 (DE)
Title: Prepn. of E-oxime ether(s) of phenyl-glyoxylic acid ester(s)
Inventor: WINGERT HORST DR
IPC: C07C51/367
Filed: 1990-12-31
Abstract: Prepn. of E-oxime-ethers of phenylglyoxylic acid esters of formula (I) comprises (a) reacting a phenol Xm-Ph-PH in a base in the presence of a solvent to give a phenolate; (b) mixing with a lactone of formula (III); (c) distilling off solvent and reacting the mixt. at 50-250 deg.C in the melt; (d) washing with water and acid to give a 2-phenoxymethylbenzoic acid of formula (IV); Q = OH); (e) treating with phosgene or SOCl2 to give the 2-phenoxymethylbenzoyl chloride (IV; Q = Cl); (f) reacting with alkali(ne earth)metal cyanide opt. in the presence of prussic acid; (g) treating the 2-phenoxymethylbenzoyl cyanide (IV; Q = CN) with MeOH in the presence of acid to give (VIIb); (h) opt. splitting under acidic conditions to give (IV; Q = C(O)NHR) or (i) treating (IV; Q=R) with dimethyl sulphoxide in the presence of a base to give a beta ketosulphoxide (IV; Q = CH2SOCH3) and treating with a halogenating agent, and MeOH in acid to give (IV; Q = C(O)OMe); (k) reacting (IV; Q = C(O)OMe) and/or (VIIb) with O-methylhydroxylamine or its acid addn. salt to give (I). Q = R1CH2SOMe, OH, Cl, CN or C(O)NNR; X, Y = halo, 1-4C alkyl, 1-4C alkoxy or CF3; m = 0-4; n = 0-3; R = 1-4C alkyl.
Patent DE-4100996-A1 (DE)
Title: Cheese press having no cloth - comprises freely movable sieve with base and cover inside trough and support clamp which initially holds then releases sieve
Inventor: WAELCHLI HANS DR
IPC: A01J25/15
Filed: 1991-01-15
Abstract: A cheese press consists of a sieve mounted between a base and a cover and located in a trough. A power unit enables the cheese mass to be squeezed inside the sieve between the cover and base. During the pressing stage the sieve body is released from the fixed position on a support and moves freely between the cover and base. The process involves pouring cheese onto the base within the sieve, the cover is positoned over the cheese and a first pressing stage is performed with the sieve rigidly connected to the support. In the second stage press force is reduced and the sieve disconnected from the support. USE/ADVANTAGE - The appts. is used for clothless pressing of cheeses and achieves uniform pressure on the cheese, even at the edges.
Patent DE-4102617-A1 (DE)
Title: Pressure container for gases or fluids - has devices for effecting gas or fluid volume alterations
IPC: F17C13/12
Filed: 1991-01-30
Abstract: Two pressure containers (1, 2) for gas or fluid are directly connected to one another under pressure by a device (5). This device has to be in a position to make available for use the power resulting from the volume alteration of the pressurised gases or fluids (8). It can be e.g. a double-acting pressure piston cylinder (5) or a pneumatically operated motor, or a pump (5) for driving e.g. machines or generators. Volume alteration is caused by temp. alteration of the pressurised gases or fluids. Gases or fluids in the one container are heated whilst those in the other container are cooled, and then vice vera. Temp. alteration can be produced by natural and/or artifical heat (3) and cold sources (4), e.g. by geothermic heat, cold air, or by central heating hot water and cold ground water. USE - To produce volume alterations in fluids or gases.
Patent DE-4104317-A1 (DE)
Title: Device for feeding of phials into packaging machine - incorporates two=part archimedean screw with forward part set in rotation by engagement of mechanical clutch
Inventor: MARCHESINI MAURIZIO
IPC: B65B35/26
Filed: 1991-02-13
Abstract: Philas are delivered by conveyor (1) to one end of an Archimedean-screw device (6), breaking the beam between two detectors (5a,5b) wired to a controller (17) of the clutch (16) which, when engaged, causes forward and rearward portions (7,8) of the screw (6) to be driven jointly by a motor (13). The forward portion (7) has limited axial movement and does not rotate with the rearward portion (8) during the first phase. The helical thread has a profile matching that of the phials. ADVANTAGE - Ordered series of phials of any cross-section can be fed safely and without difficulty.
Patent DE-4107359-A1 (DE)
Title: Boiler air temp. regulation system - reduces exhaust heat after air pre heater and delivers to air
Inventor: SCHLOMS HENNER-SIEGBERT
IPC: F23L15/00
Filed: 1991-03-05
Abstract: The system regulates combustion air temperature in a boiler fired by pulverised coal, using an exhaust-heated air pre-heater. The amt. of heat in the exhaust, after the pre-heater(1) is reduced while maintaining the efficiency of the latter. The heat-difference is delivered to the combustion air in the form of vaporisation heat after the pre-heater. This can be done in the form of superheating heat raising the air temperature after the pre-heater. There can be a heat-exchanger(4) in the exhaust after the pre-heater, connected by pipe to a further one(5) before the pre-heater. A distributor pipe(15) is connected to the air outlet(9) from the pre-heater, as is the outlet from the second exchanger. ADVANTAGE - Increases speed of combustion air without reducing pre-heater output.
Patent DE-4108640-A1 (DE)
Inventor: MAAS JOACHIM DIPL ING
IPC: B60T8/42
Filed: 1991-03-16
Abstract: The proposal is for an anti-lock hydraulic brake installation in which a pressure accumulation stage, a pressure release stage and a pressure maintenance stage are possible. To this end an outlet valve (8) and a pilot valve (9) are fitted, not as is usual on the pressure side but on the intake side of the pump. This has the advantage that the pilot valve (9) is arranged in the low-pressure region of the braking installation so that no heavy sudden applications of pressure which can result in noise emission are triggered during switching processes.
Patent DE-4110743-A1 (DE)
Title: HF signal direct demodulation for car-phone - has low pass filters in multiplier paths for better signal rejection
Inventor: KERSCHBAUMER KLAUS DIPL ING DR
IPC: H03D1/22
Filed: 1991-04-03
Abstract: A power divider (2) for the HF signal feeds respective multiplies (3,4). A carner frequency oscillator (9) feeds a second divider (15). Either between one of the outputs of the two divides and a multiplier there is coupled a 180 degree phase shiftes, or an inverter, or one of the two power divides has a non-inverting and an inverting output. The outputs of both multipliers are coupled to the two inputs of a subtractor (10). Between the outputs of the two multiplies (3,4) and the subtractor (10) are coupled a respective low pass filter (7,8) and a respective amplifier (5,6). USE/ADVANTAGE - Mobile radio, eg car telephone. Insensitive to neighbouring transmitter.