baber/WOPTO huggingface dataset:
Patent DE-4035722-A1 (DE)
Inventor: SCHULZ PAUL DR
IPC: C11D1/66
Filed: 1990-11-09
Abstract: Aqueous surfactant pastes, in particular those containing non-ionic surfactants of the alkylglycoside type, are given excellent storage stability against microbial attack when, following an oxidative bleaching procedure to remove alkali-sensitive pigments, the pH is adjusted to a value of at least 11 by the addition of alkaline substances.
Patent DE-4105775-A1 (DE)
Title: Light barrier operating circuit for battery powered appts. - has light barrier transmitter continuously energised by short pulses from pulse generator
Inventor: HARTING DIETMAR
IPC: G07F5/10
Filed: 1991-02-23
Abstract: After the light barrier actuation, the following appts. controls with relatively high current requirements are switched-on. The light barrier (2) transmitter (6, 6') is continuously energised by short pulses (10) from a pulse generator (3). The pulses have a large keying ratio. There is a constant current source (5) for the generator current and voltage supply, whose output current (I) is limited to a min. required for a regular operation of the generator. Pref. a Schmitt-trigger forms the pulse generator, behind which is incorporated a differential stage to provide narrow pulses with large keying ratio. USE/ADVANTAGE - For microprocessor controlled appts. e.g. coin-operated vending machines etc, with reduced power requirements.
Patent DE-4106953-A1 (DE)
Title: Individual motor spindle drive - has knee operated three position switch connecting motor to AC supply for running, DC supply for braking and disconnecting for stopping
Inventor: STAHLECKER GERD
IPC: D01H1/244
Filed: 1991-03-05
Abstract: An individual electric motor drive for a spinning or twisting spindle has a three position switch (10). In the running position (C) the windings of the stator are suplied with 3-phase alternating current (L1, L2, L3), in the braking position (A) they are supplied with direct current (+UB-UB), and in the neutral position (B) the supply is cut off. The switch (10) can be knee operated and can be capable of being left in the running (C) or neutral (B) position but must be held against a spring for braking (A). The switch (10) can be connected to an endbreak detector logic controller (14). USE/ADVANTAGE - The switching arrangement provides for individual motor drives operating procedures corresp. to those used in mechanical tangential belt drives.
Patent DE-4108563-A1 (DE)
Title: Flat knitting machine - has regulated oil smear equipment fitted to the carriage
Inventor: SARETZKY HORST
IPC: D04B35/28
Filed: 1991-03-15
Abstract: On a flat knitting machine which has a reciprocating carriage above the needle beds, an oil smear device is attached to each bed. This has an oil supply line, and flow control in each section. The V bed has two sides (1a,1b) with a carriage superimposed. At the end of the carriage, and above each bed, is an oil distributor (5a,5b). Each row of needles (4), which may be varied in height, has a brush (23) held in a tube (15). A controlled amount of oil is distributed to each tube through a valve (21), which can be separated adjusted. Each valve also has a non-return air valve to prevent oil dripping when the carriage is stopped. The distribution pipe (19) is connected to the junction (12) and to a flexible tube (11) to the oil pump (7), which has a switch (13) to control the pressure from the sump (10). The oil distributor is held on a hinge bolted to the side of the carriage, and the brushes (23) are close to the needles (4) without touching. As oil may flow down the beds (1a,1b), less is allowed to pass the lower valves (21) to avoid excess. ADVANTAGE - Eliminates manual oiling procedure and gives the correct amt. of oil at the appropriate time. Avoids excess oil flow which can soil the fabric.
Patent DE-4119017-A1 (DE)
Title: Letter for advertising purposes - has two-section outer part folding along common line to inner part which has two sections with rectangular basic surface
Inventor: BAUMANN GUENTER
IPC: B42D15/00
Filed: 1991-06-08
Abstract: The two sections (17,18) of the inner part (12) connect to each other along a common fold line (19), around which, as prim. fold, they are foldable towards one another. They both have a specific width (b2). To each inner section connects a sec. flat surfaced section (21,22) along the edge turned away from the prim. fold, which also has a specific width. Between the sec. flat section and the corresp. inner section (17,18) a sec. fold (23,24) is available, which is parallel to the prim. fold of the inner part and to the fold (15) of the outer part (11). Along the prim. fold (19) or in the flat area of at least one of the inner sections is a longitudinal perforation (29). To the inner sections along the prim. fold connect narrow flat strips on the inside of which is applied an adhesive coating. USE/ADVANTAGE - As a publicity letter with compact format for posting and delivery, which on receipt gradually opens out for perusal.
Patent DE-4119334-A1 (DE)
Title: Accident prevention safety appts. for aircraft - prevents unintentional switching of propulsion system into reverse at preset altitude, speed and undercarriage position
Inventor: HERZOG SEN ROLF
IPC: F02K1/76
Filed: 1991-06-12
Abstract: The safety device operates on a reverse thrust activation circuit, such that the circuit is only released for attitude values, e.g. under 100 metres. A dynamic air pressure indicator (3) and controller are used to prevent activation of the reverse thrust e.g. at speeds under 300 km/hr. Pref. the magnetic locking switch of the aircraft's undercarriage is used to prevent activation of reverse thrust unless the undercarriage is down. USE - In conjunction with conventional aircraft safety systems, for preventing unitentional reverse thrust activation of engines.
Patent DE-4128802-A1 (DE)
Title: Cross winder with reduced wear -  has pairs of rails to form straight path for reciprocating yarn guide with bridge rails and change points outside stroke path
Inventor: SCHIPPERS HEINZ DR
IPC: B65H54/28
Filed: 1991-08-30
Abstract: The winder, with a reciprocating yarn guide to form cross wound bobbins, has two pairs of rails as the straight guide for the yarn guide along the bobbin length, with a working rail along the bobbin length and parallel to the bobbin axis, and a bridge rail. The working rails are close together, with a gap between them for the reciprocating yarn guide to pass thorugh while impelled by the spiral tracks on the drive roller. The working rails and the bridge rails come together at a point outside the stroke path of the yarn guide, with direction change points to bring the yarn back at the end of each stroke movement. The working and bridge rails, and the spiral grooved drive roller have a phase shift of half a rotation phase in one pair and by a quarter of a rotation phase for the other pair. The grooves on the drive roller have a forward and reverse spiral formation within the stroke length, and direction change grooves outside the ends of the stroke path. At the winding stretch, and the direction reverse stretches, the lengths as the rotary angle between the start and end of each stretch are the same. ADVANTAGE - The yarn guide has a low acceleration and deceleration at the direction change points, so that wear is reduced and the working life is increased.
Patent DE-4138287-A1 (DE)
Title: Magazine shelving with L shaped tilting shelves - has back, support arms, angled partitions, divider and bracket
Inventor: KOCH WOLFGANG
IPC: A47F7/14
Filed: 1991-11-21
Abstract: The shelving has an L-shaped, forward- and downward-tilting shelf for periodicals consisting of the back-wall (2) from the edge of which stands a support-arm (3). T-sectioned or angled partitions (5) stand at right angles from the back-wall and can be adjusted and fixed in position. The one arm of the partition forms the bearing-arm, and the other arm forms a divider (9). The flat outsides of bearing-arms (6) rest against the back-wall, and their ends rest on the support arms. A bracket (7) detachably holds the partition and its bearing-arm. USE/ADVANTAGE - The magazine shelving separates, labels and classifies the contents.
Patent DE-4139882-A1 (DE)
Title: Release system for hump shunted rail trucks - determines earliest and latest points from truck loads and hump profile
Inventor: SOREMBA VOLKER DIPL ING
IPC: B61J3/02
Filed: 1991-11-29
Abstract: The system controls release of a rake of rail trucks pushed over a shunting hump at variable speed. The earliest and latest release points for a rake are computed from the individual truck loads, weight distribution and hump profile, also the points at which gravity ceases to have effect on the rake in either direction. To determine the pushing speed the latest release point resulting from the weight concentrated at the rear end of the foremost rake, and that resulting from the weight concentrated at the forward end of the rake behind it, are taken into account. USE/ADVANTAGE - Shunting control system determines release points of rakes before these start to run down the hump.
Patent DE-4140620-A1 (DE)
Title: Adjustable child's safety seat for motor vehicle - has guides for vehicle lap belt, to compensate for belt length variations when child's seat is moved
Inventor: QUERFURTH WINFRIED
IPC: B60N2/28
Filed: 1991-12-10
Abstract: The child's seat has a backrest and seat, with side walls, and is placed on a motor vehicle seat. A baby is fastened into the seat by the lap belt of the vehicle. The belt extends across the child's lap and the side walls, or through recesses between seat and backrest, or through a baffle body on the seat. The child's seat (1) may be moved between a front reclining position and a rear sitting position, by moving seat (2) and/or backrest (8).The child's seat or vehicle seat (4) have belt guides for the vehicle lap belt (13). When the child's seat is moved, the guides are moved or pivoted, to compensate for belt length changes. USE/ADVANTAGE - Adjustable safety child's seat can be used in reclining and sitting positions.
Patent DE-4207487-A1 (DE)
Title: Security increasing device for flat door - has steel reinforcement for hollow body door leaf, with steel parts secured in door frame bars
Inventor: KOSCHKE JOACHIM
IPC: E06B5/11
Filed: 1992-03-10
Abstract: The safety increasing arrangement is intended for flat doors with leaves contg. hollow bodies. The latter are partly fitted with a steel reinforcement, eg subsequently. The steel reinforcement parts are secured in the door frame bars. Pref. the steel reinforcement parts are secured both vertically and horizontally spaced bores are made in the door leaf wooden frame on the door lock side. The bores are drilled through, and steel rods are pushed through, secured by end screws. ADVANTAGE - Simple security conversion.
Patent DE-4210879-A1 (DE)
Title: Fold closing mechanism for building industry - includes series of rolls having successively larger angle of inclination
Inventor: RICHTER ALFRED
IPC: E04D15/04
Filed: 1992-04-01
Abstract: The fold closing mechanism, esp. for producing a fold on roof cover and wall cladding fasteners used in the building industry, incorporates rotatably mounted closing elements and guide rolls in a swivel-mounted holder for guiding the fold closing mechanism. The closing elements are rolls (1, 2, 3, 4) mounted with an angle of inclination (alpha) which increases successively from the first roll (1) to the last roll (4). Handles (17, 22) are foreseen for manual feed of the closing mechanism. The angle of inclination (alpha) of the final closing roll (4) - which is spring-mounted - is between 90 and 95 deg., with the pref. value being 92 deg. The end closing roll is located in a holder moving along a guide. The holder has an element which is provided with a blind hole for housing a spring element and a fastener. The spring element is either a cylindrical compression spring or a Belleville spring. The first closing roll is preceded at least by two centring rolls. USE/ADVANTAGE - In the building industry. It is simply constructed and operates reliably.
Patent DE-4210912-A1 (DE)
Inventor: POLY WOLFGANG DR
IPC: C11D3/00
Filed: 1992-04-02
Abstract: Low foaming aqueous detergent mixtures contain: (a) alkyl- and/or alkenyloligoglycoside ethers having the formula (I): (R<1>-0-[G]p)(R<2>)n, in which R<1> stands for a linear or branched aliphatic hydrocarbon residue with 6 to 22 carbon atoms and 0, 1, 2 or 3 double bonds; R<2> stands for a linear or branched alkyl residue with 1 to 8 carbon atoms or a benzyl residue, [G] stands for a sugar residue with 5 to 6 carbon atoms, p stands for numbers from 1 to 10 and n for numbers from 0.1 p to 2 p; and (b) anionic, non-ionic and/or amphoteric or zwitterionic surface-active agents.
Patent DE-4213736-A1 (DE)
Title: Tanker-vehicle filling equipment - has four swivel joints in pipe comprising straight sections and bends
IPC: B67D7/00
Filed: 1992-04-25
Abstract: The equipment (3-22) fills tanker vehicles with liquid, particularly fuel, having a filler pipe in straight sections coupled together via bends and swivel joints. This is connected at one end to the stationary storage system, and has a coupling at the other engaging with the union on the vehicle. There is a first swivel joint between the bend at the coupling and the pipe connected to it and which is connected by a bend to a second pipe. A third bend at the other end of the second pipe is coupled by a second swivel joint to a fourth bend, in turn coupled by a third swivel joint to a pipe suspended from the storage system. Between the third swivel joint (14) and the union (19) to the storage system is a third pipe (15) with bends (17) in opposite directions, coupled to the union by a fourth swivel joint (18), whose axis is parallel to that of the third (14). USE/ADVANTAGE - Equipment for filling tanker vehicle keeps the pipes leading to the coupling vertical.
Patent DE-4219263-A1 (DE)
Title: Protective electrical contact plug with angled cable entry - has hole in body for simultaneous extn. of two or more plugs from adjacent sockets by means of single finger
Inventor: ROMCA JENS
IPC: H01R13/56
Filed: 1992-06-12
Abstract: A plug body (10) of standard external dimensions carries a pin (12) protruding from the end remote from the cable entry (16) which is formed at an obtuse angle to the axis of the pin. The angle may be greater or less than 110 deg. according to the dia. of the cable entry so that two such plugs may enter respective sockets with spacing less than the width of the plug in the direction of cable entry. ADVANTAGE - A row of such plugs can be fitted easily into a multiple socket and withdrawn by insertion of a finger into the holes (20).
Patent DE-4223232-A1 (DE)
Title: Device for controlling opening time of gripper fingers in sheet delivery mechanism - has starting body displaceable along path matching curved or straight path of movement of grippers
Inventor: MAUL BERNHARD
IPC: B65H29/04
Filed: 1992-07-15
Abstract: The displacement of the starting body (19) which determines the opening position and time is carried out along a displacement path (26) which in shape matches the geometrical course of the path of movement (37) of the gripper systems (5). The displacement path is pref. adapted so that there are always the same starting and/or closing angles between the gripper openers (17) and starting bodies (19). The gripper systems are attached spaced from each other on an extension chain (3) guided round a guide wheel (4).The chain path of the chain not only runs curved in the contact area with the guide wheel but also in the guide area (36) adjoining the wheel. USE/ADVANTAGE - Relatively compact construction of control device for gripper fingers in sheet delivery mechanism allowing large adjustment area.
Patent DE-4226575-A1 (DE)
Title: Five ratio gearbox with intermediate shaft arrangement - has fourth gear with 1:1 ratio, adjacent ratios achieved via multiple coupling on intermediate train and all progressively stepped
Inventor: BENDER HELMUT DIPL ING
IPC: F16H3/091
Filed: 1992-08-11
Abstract: In order to achieve five increasing ratio, forward gears, the fourth gear has a ratio 1:1, and both adjacent ratios (third and fifth) are achieved by multiple coupling with a gear (H2) on the base geartrain (7) with one of the constant gears (K1,K2). This provides a more rapid gear change. The changing forwards of the gears is progressively stepped as is that of the four lower gears. ADVANTAGE - Reduced number of gears, allows progressive ratio change.
Patent DE-4228079-A1 (DE)
Title: X=ray image intensifier with image sensor with simple adjustment of electron sensitivity - comprising vacuum housing, front-end fluorescent screen, electronic optics and image sensor on side of vacuum housing, having insulating layer
Inventor: HIPPELI JOACHIM DIPL PHYS
IPC: H01L27/148
Filed: 1992-08-24
Abstract: An x-ray image intensifier comprises a vacuum housing, a front-end fluorescent screen, electron optics and an image sensor mounted on the side of the vacuum housing which is opposite the front-end screen and inside the housing. An insulating layer is deposited on the side of the image sensor remote from the screen. This insulating layer is covered with an electroconductive layer to form an electrode. The electrode (9) is a thin metal film, or is a transparent conductive layer of indium-tin oxide, zinc oxide or tin oxide. USE/ADVANTAGE - The device is used in medical x-ray diagnosis. The device is of simple construction and has a variable electron-sensitivity which is easily controlled.
Patent DE-4229371-A1 (DE)
Title: Regulating arc in metal melting, welding or plasma process - includes using second order differential of arc current w.r.t. time as regulating parameter
Inventor: DANILOV WLADIMIR ALEKSANDROVIC
IPC: F27B3/08
Filed: 1992-09-03
Abstract: Regulation of the arc of metal-melting arc furnaces, welding units or plasmas involves adjusting the electrode distance from the material being melted in accordance with the value obtained by double differentiation w.r.t. time (i.e. d2I/dt2) of the arc current between the electrode(s) and the material during arc operation. In the case of an arc melting furnace, pref. the method involves (i) summing the instantaneous values of the phase voltages of the electrodes; (ii) summing the values of the rectified phase voltages; (iii) calculating the difference between the two sums; (iv) subjecting the transformer output current to second order differentiation w.r.t. time; (v) comparing the value from (iv) with the previously determined value for the max. melting rate (wt./time); and (vi) forming a signal for electrode stand-off distance regulation from the value obtained in (iii) and from the comparison (v). ADVANTAGE - The second deriv. of the arc current w.r.t. time is directly proportional to the melting efficiency (melted wt. per unit time) and can thus be used for direct regulation of melting power or plasma power to give considerably increased yield.
Patent DE-4231820-A1 (DE)
Title: Screen drum-type centrifuge - has fluid blasting system for residual layer removal from screen drum
Inventor: RICHTER RAINER
IPC: B04B15/06
Filed: 1992-09-23
Abstract: A centrifuge, for sepg. solids from liqs., has a screen drum rotating in a housing, the novelty being the provision, in the drum (1) between its inner wall and the outer wall (3) of the screen drum, of one or more pressurised fluid (pref. gas or vapour) blasting devices (13) which are directed at the outer wall (3) of the screen drum. The blasting devices pref. comprise an array (13) of nozzles (15) extending along the screen drum, the nozzle openings being aligned with the drum apertures (4) pref. for delivering continuous fluid streams at low pressure. Alternatively, the blasting device is formed by a pressure chamber seated on the outer wall of the screen drum, the free edges of the chamber being provided with a peripheral seal. ADVANTAGE - The blasting devices provide improved residual filter cake layer removal from the screen drum wall.
Patent DE-4239615-A1 (DE)
Title: Gas processing plant control system - controls cyclically operated adsorption dryer, esp. for compressed air drying
Inventor: SOMERVILLE JAMES H
IPC: B01D53/26
Filed: 1992-11-25
Abstract: A control system is claimed for a gas processing plant which has a cyclically operated drying appts. for gas component extn. from a gas mixt. and a flow controller for selectively passing the gas mixt. through a gas flow path contg. a drying agent during gas drying cycles of the dryer in order to adsorb the gas component and for passing a gaseous cleaning medium through the drying agent during cleaning cycles in order to regenerate the drying agent by removal of at least part of the adsorption prod. The control system, used to control cyclic-operation of the drying appts., includes (i) a controller which is connected to the gas mixt. supply and the dryer and which has devices for establishing operation of the supply during gas mixt. feed and for operating the flow controller to control the drying and cleaning cycles; and (ii) a regulator which cooperates with the devices of the controller to control the cleaning cycle duration so that the cleaning flow is regulated during cleaning cycles in reaction to operation of the mixt. supply. Also claimed are a gas processing plant and a process for regulating the sequence of drying and cleaning cycles in a gas processing plant. USE/ADVANTAGE - The control system is used to control adsorption drying appts. for drying compressed air. It controls the operation on the basis of the supply compressor operating cycle, rather than on supply requirements, to maintain precise dryer control without the need for sensors in the dryer.
Patent DE-4241178-A1 (DE)
Title: Floating matter sepn. system for fluids - has settling chamber and precipitating chamber with walls for part flows, for hazardous matter removal
Inventor: DIEFENBACH GUENTER
IPC: B01D21/02
Filed: 1992-12-08
Abstract: The system has a precipitating chamber (3) with limit walls (9) which extend radially from the outlet (6) of the basin into the interior of the basin. The inner side of the settling basin (2) and the outer limit wall (9) of the precipitating chamber (3) are contoured to form part flows (7a,7b) towards opposite sides of the precipitating chamber (3) and in a reverse flow to the connection of the precipitating chamber (3) at the settling chamber (2) where there is precipitator(s) (5) of the chamber (3). Pref. precipitator(s) (5) are located at the side and curved limit walls (9) of the precipitating chamber (3). The chamber (3) has an inlet (11) at the end extending into the basin. The precipitating chamber (3) is divided into two sections, with a precipitator (5) for each section and the two part flows (7a,7b) are directed into each section. An immersed plate (13) and/or an immersed tube (12) are at the feed side of the settling chamber (2) and/or at the inlet of the precipitating chamber (3) and its sections, to change the waste water flow from upwards to downwards. A flow guide at the entry to the precipitating chamber (3) or its sections takes the water from the lower zone of the settling chamber (2) with a slight flow speed through an immersion tube at the lower end of the limit wall, with a trapezoid cross section. USE/ADVANTAGE - Used at building sites etc. to separate out floating matter. It is simple to use, has a relatively small structure, with easy access to all parts for maintenance and cleaning, and effectively removes all hazardous matter.