baber/WOPTO huggingface dataset:
Patent DE-3914599-A1 (DE)
Title: Monitoring indicator for deep freeze products - uses container, e.g. bubble or blister, partially filled with indicating liq. and having walls at least partially transparent
Inventor: HOLZER WALTER DR
IPC: G01K11/06
Filed: 1989-05-03
Abstract: Indicator fluid (6) is enclosed in a cavity (4) so that it is only partially filled. The cavity is formed between a base foil (2), e.g. of aluminium and a deep-drawn, transparent covering foil (3). If one moves the indicator (1) it is possible to tell if the indicator fluid is liq. or frozen. The freezing point of the indicator fluid is approximately that of the recommended freezing temp. of the deeply frozen product, e.g. -22 deg. C. The indicator fluid can have a melting point equal to the critical storage temp. of the product. USE - Shows correct freezing and, at least partially, the temp necesssary for "shock freezing".
Patent DE-3917287-A1 (DE)
Title: Prodn. of penem antibiotics
Inventor: BUDT KARL-HEINZ DR
IPC: C07D499/34
Filed: 1989-05-27
Abstract: Prodn. of penem cpds. of formula (I) is effected by reacting a 4-acylthio-1-oxalyl-2-azetidinone of formula (II) with a phosphonite diester of formula (III). R1 = H, 1-4C alkyl, 1-12C alkoxy, 1-12C alkylthio, OAr, Ar, 3-6C cycloalkyl, 3-6C cycloalkyloxy, 5-6C oxacycloalkyl (opt. mono- or diunsatd.), 3-6C oxocycloalkyl, gem-di(1-3C)alkoxy(3-6C)cycloalkyl, (1-3C)alkylimino(3-6C)cycloalkyl, arylimino(3-6C)cycloalkyl, hydroxyimino(3-6C)cycloalkyl or (1-3C) alkoxyimino(3-6C)cycloalkyl, where the cycloalkyl gps. are opt. mono- or diunsatd.  and opt. mono- or disubstd. by 1-3C alkyl, 1-3C alkoxy, halogen or methylene; Ar = phenyl opt. substd. by 1 or 2 of COOH, 2-5C alkoxycarbonyl, allyloxycarbonyl, CONH2, 1-4C alkylcarbamoyl, CN, F, Cl and/or Br; R2 = H or a protecting gp. removable by hydrolysis, photolysis, oxidn., redn.  or enzyme treatment; R3 = H, 1-4C alkyl, 2-4C alkenyl, 1-4C alkoxy, 4-7C cycloalkyl, phenyl, 2-oxo-1,3-dioxolyl, triazolyl, thiazolyl, NH2 or acylamino (N.B., in all exemplified cpds., R3 is O-protected 1-hydroxyethyl); R6 = 1-4C alkyl or phenyl opt. substd. by 1-3C alkyl or 1-3C alkoxy; R4 and R5 = 1-4C alkyl, allyl, benzyl or phenyl opt. substd.  by 1-3C alkyl or 1-3C alkoxy.
Patent DE-3938977-A1 (DE)
Title: Calender for PVC prodn. - comprising at least 4 rolls where 1st, 2nd, and 3rd rolls lie in horizontal plant and final pair lie in common plant at ring angles
Inventor: BRANCHADELL JOSE
IPC: B29C43/24
Filed: 1989-11-24
Abstract: A calender (C) for processing thermoplastic materials and comprising a supporting frame and at least four rolls together with profiled side-checks above and between the first pair of rolls has horizontal alignment of the first two roll axes.  At least one other roll also lies in the same horizontal plane. The axes of the final two rolls also lie in a common plane, but which is preferably at right angles to the horizontal axes of the first two rolls. USE/AADVANTAGE - (C) is used for producing thermoplastic film partic. PVC film which may be laminated with other sheet material. (C) permits easy feeding of polymeric material to the first two rolls and has simple alteration of film thickness. (C) has a shorter path length reducing heat damage to the film, a lighter supporting frame and can handle both plasticized and non-plasticized polymers.
Patent DE-4002143-A1 (DE)
Title: Ram operated construction material skip hoist - has linkage moving strip slider for over twice ram working distance
Inventor: BINGLER ALBERT
IPC: B28C7/08
Filed: 1990-01-25
Abstract: The hoist mechanism with a skip particularly has a slider with skip moved up and down vertical or inclined guide rails by a hydraulic ram with mechanical transmission to the slider. A linkage (12-17) transmission is so designed that the distance over which the ram (10) works is less than half that travelled by the slider (2). The linkage includes a front lever (13) coupled between the slider and ram, and a rear one (16) coupled between the front lever and the frame (1). USE/ADVANTAGE - For mobile concrete mixer plants etc, with improved safety and operating reliability.
Patent DE-4008850-A1 (DE)
Title: Focal spot control - for vacuum arc vaporiser with floating plasma potential sonde adjusting the direction of the magnetic field
Inventor: SCHULZE DIETMAR DR RER NAT
IPC: H01J37/305
Filed: 1990-03-20
Abstract: The position of the focal spot in a vacuum arc vaporiser is controlled by external magnetic fields parallel to the erosion surface, which have components parallel to a part of the rim of the erosion surface. A sonde outside of and insulated from the cathode establishes the floating potential of the plasma. On reaching the desired value, the direction of the external magnetic field is changed. A cylindrical graphite electrode (1) of 50 mm dia and 50 mm height is coaxial to the anode (2) with an id of 150 mm.  Three mnet coils (4) on a core (5) with three pole shoe extensions (6), approaching the erosion surface (3), control the position of the cathode spot. The sonde (7) measures the floating potential of the plasma and acts as electrostatic screen to prevent discharges on the cathode shell. A threshold switch (8) is used to change over the magnetic field direction by the unit (9). ADVANTAGE - This permits the prodn of layers with a great homogeneity and a most uniform cathode erosion.
Patent DE-4009513-A1 (DE)
IPC: G09F13/18
Filed: 1990-03-24
Abstract: The invention relates to a luminous panel for presenting signs and drawings. According to the invention, it is formed by a panel (1) made in a translucent material defined at least by three strips (2, 3, 4) which carry graphic patterns to be presented, by a relief consisting of incisions into the surfaces of the central plate and optionally into those attached to those of the external strips; the illumination of the panel is done through at least one light focus (11) of longitudinal configuration, which is placed parallel in one of the ends of the plate, its axis coinciding with the mid-plane of the panel. The invention applies especially to displays. <IMAGE>
Patent DE-4009861-A1 (DE)
Title: Continuous prodn. of quality steel or wire - using concast strip which is cut into strip billets and rolled to finished dimensions
Inventor: HOFFMANN KLAUS
IPC: B21B1/18
Filed: 1990-03-28
Abstract: Prodn. of hot rolled quality steel or wire consists of concasting into wide steel strips (19) of 25-80 mm thick, cutting longitudinally (3) and transversely (2) at the  solidification temp. to produce rectangular or quadratic billets (10) which are held in a furnace to equalise temp.  distribution; sequentially removing the billets from the furnace and feeding into a roll train for rolling to the final dimensions. ADVANTAGE - Avoids the prior art need for multi-rolling and heating units which require a lot of space and expenditure in heating and transport costs.
Patent DE-4011023-A1 (DE)
Inventor: ZERTANI RUDOLF DR
IPC: G03F7/20
Filed: 1990-04-05
Abstract: A posttreatment apparatus 1 for printing plates 30 which have been exposed to an image comprises an exposure station 2 and a hot station 3 which are situated one behind the other in the direction of conveyance of the printing plates along a conveyance track 12 through the posttreatment apparatus 1. The exposure station 2 contains a controllable radiation source 8 for exposing the entire surface of the printing plates. The housing of the exposure station 2 has an exposure opening 13 at the bottom which is covered by a filter disc 9. The housing of the hot station 3 is thermally insulated on three sides and open at the bottom in the direction of a reflector table 7 across which the printing plates are passed.
Patent DE-4013274-A1 (DE)
Title: Carton packing machine with parallel entrainment members - has vertically adjustable guide rail between conveyor paths of boxes and product buckets
Inventor: KOSER WERNER
IPC: B65B39/14
Filed: 1990-04-26
Abstract: The carton packing machine includes a guide rail (30) mounted  on the conveyor path of the boxes on the side towards the product buckets. In the insert area where the insert ram (14) comes close to the boxes (1) the guide rail has a thin guide wall part (41) parallel to the plane of the end side of the ram and in the plane of the filling opening of the box to be filled. The guide rail (30) is vertically adjustable for the cover plate (8). The insert rams (14) are set to the maximum size of box to be handled. The guide rail can have in the insert area a recess (40) which takes up the heads (22) of the rams. USE/ADVANTAGE - For placing objects in folded boxes. With a change of format only the vertical position of the guide rail need be adjusted ensuring quicker change-over times.
Patent DE-4013294-A1 (DE)
Inventor: WEICHERT THOMAS DR
IPC: C03B18/16
Filed: 1990-04-26
Abstract: Chamotte block with 33 to 43 % by weight of Al2O3 and 1 to 3 % by weight of alkali metal oxide for use as a large-size tin bath bottom block in furnaces for the manufacture of sheet glass by the float process, having a low modulus of elasticity under compression and a low gas permeability, and produced with the use of alkali-rich silicate material.
Patent DE-4025961-A1 (DE)
Title: Allylic chloride-contg. hydrocarbon and hydrocarbon polymer prodn.
Inventor: KNOLL KONRAD DR
IPC: C07C17/275
Filed: 1990-08-16
Abstract: In prodn. of hydrocarbons and hydrocarbon polymers of formula R-C(CH3)2-CH-2-C(CH3)2 -CH2-CH = CH-CH2-Cl (I) where R = a hydrocarbon gp., a tert. C-bonded Cl-contg. component of formula R-C(CH3)2-CH2-C(CH3)2-Cl (II) is reacted with 1-10 mol. butadiene in the presence of a Friedel-Crafts catalyst in a solvent inert to the catalyst. Molecules are obtd. with reactive end gps. which may be further reacted giving a high degree of functionality. The starting material is pref. an oligomer or polymer of isobutene which is obtd. by cationic polymerisation and which contains on one or all chain ends Cl atoms bonded to tert. C-atoms. The solvent is pref. dichloromethane. 1-10 mole BC13 as a Friedel-Crafts catalyst is used per mole Cl-contg. end gps., and work is carried out at a temp. below O deg.C. The catalyst and/or the solvent are distilled off after the reaction and recycled. Polyisobutylenes of general formula CH2-CH = CH2;R1 are claimed, where R1 = Cl or a gp. obtd. by reaction of the cpd. of formula (I) with ammonia, prim. or sec. amine or polyamine, aminoalcohol, aminoether, hydrazine or a hydrazine substd. upto three-fold.
Patent DE-4026676-A1 (DE)
Title: Automatic forest fire detection system - uses pyroelectric detector receiving light from optical scanner for monitored area
IPC: G08B17/12
Filed: 1990-08-23
Abstract: The fire detection system uses optical azimuth scanning of a given forested area, with the light received from the  scanning device directed onto a focal plane contg. a pyro-electric detector providing a signal when a fire is detected. Pref. the scanning is effected via a rotary mirror (20) supported at the top of a mast projecting above the tops of the trees and receiving light via a 360 deg. azimuth window (26), e.g. of germanium. The light from the mirror is focussed via a spherical objective lens (28) and directed onto the pyroelectric detector (32) with a wavelength range centred on 4.4 mm, via a narrowband optical filter (30). USE - Detecting forest fires in remote areas day or night.
Patent DE-4029749-A1 (DE)
Inventor: HAERLE HANS A DIPL ING
IPC: B01D46/12
Filed: 1990-09-20
Abstract: A filter for removing impurities from waste gases, and especially from the waste gases of an internal combustion engine, includes a filter body consisting of a plurality of compression moulded, high temperature resistant, sintered filter plates consisting of metal powder, metal chips, metallic fibres or a mixture of these materials, which are arranged on top of or behind one another and kept at a distance from one another by spacers, to form between them a plurality of flow channels. The flow channels are open at one end and closed at the other end in order to form inlet and outlet channels. The walls of the filter plate situated between the inlet and outlet channels constitute filter surfaces. The filter plates are formed by filter discs lying on top of one another, arranged in a filter housing and having a free or open central interior space, so that the waste gases flow radially through the filter discs from the outside towards the interior space or from the interior space towards the outside.
Patent DE-4033473-A1 (DE)
Title: Measuring leakage rate of slide ring seal - mixes leakage fluid in gaseous state with inert gas and measures concentration of leakage fluid in the mixt.
Inventor: SCHROEDER ROLAND DIPL ING
IPC: G01M3/22
Filed: 1990-10-20
Abstract: The leakage rate of a slide ring seal with two sealing rings or plates is measured by feeding the leakage fluid flow in gaseous state into a mixing chamber at atmos. pressure. The fluid is maintained in the gaseous state in the chamber and a quantity of inert gas, which can be mixed with the fluid, is introduced. The gaseous fluid and the inert gas are mixed and the concentration of the leakage fluid in the mixt. is measured in the mixing chamber, or in a measuring chamber connected to it. The leakage rate is determined from the measured concentration. ADVANTAGE - Improved measuring precision, with reduced inertia.
Patent DE-4034421-A1 (DE)
Title: Particle beam intensity modulator - has inductance transformer deflecting beam to=and=fro with deflection system forming resonant circuit
Inventor: FEUERBAUM HANS-PETER DR
IPC: H01J37/147
Filed: 1990-10-29
Abstract: The device for modulating the intensity of a particle beam has a deflection system (AS) arranged in the beam passage below a particle source (Q), and a unit (SG) for generating the deflection signal (VSG), and an impedance transformer (IW) which controls the deflection system (AS) and which receives the deflection signal (VSG) as an input. The impedance transformer (IW) pref. comprises two inductors (L1,L2) and the deflection system (AS) forms a resonant circuit. USE/ADVANTAGE - Heating, e.g. experimental, component in vacuum. Raster electron microscope. Ion beam appts. for modulating beam intensity. Achieves shorter electron pulses. Can operate with necessary voltage for varying field strength for quick deflection of beam but with reduced power requirement. Simple to handle.
Patent DE-4041489-A1 (DE)
Title: Rolling bearing for shafts - has rolling bodies of non-circular cross=section
Inventor: MUEHLISCH ALFRED DIPL ING
IPC: F16C19/50
Filed: 1990-12-22
Abstract: The mechanism grinds the working rollers of a planetary rolling mill, these rollers together with the intermediate ones being mounted in cages, there being a top and a bottom planetary roller, each with a supporting body. Each planetary roller (1) has a manipulating mechanism (2) movable in three planes. This extracts the working rollers (3) individually from the planetary one and transports to and from a grinder mechanism (5). ADVANTAGE - Simplicity, low cost, and minimum downtime.
Patent DE-4102227-A1 (DE)
Title: Wire guiding arrangement for rotary wire cropping shear - has vertically adjustable stop to steer wire guide tube into axial feed groove of cropping roll
Inventor: HAASE HARTMUT
IPC: B23D25/14
Filed: 1991-01-23
Abstract: In a rotary flying shear for cropping wire at high throughput speeds the wire (11) passes through a guide tube (2) with a swivelling offset nose extension which enters the helical axial feed groove (15) to traverse the wire past the cropping blades. The nose extension is retained in the groove by the vertically movable stop (6). After the cut the stop descends so that the nose extension and guide tube can drop and return to the outside starting position. ADVANTAGE - Ensures that nose extension of guide tube does not foul crest of axial feed groove.
Patent DE-4102478-A1 (DE)
Title: Inductive angle transducer for machinery, research, control etc. - has sectored surface bounding airgap between mutually rotatable soft magnetic cores
Inventor: ROHRBACH CHRISTOF PROF DR ING
IPC: G01D5/20
Filed: 1991-01-29
Abstract: An inductive angle transducer contains at least two mutually rotatable, soft magnetic cores separated by at least two air gaps (6) and at least one coil enclosing at least one of the cores.  At least one of the surfaces bounding each air gap varies with the rotation angle of at least one core (5). At least one of the surfaces bounding the air gaps is shaped as a circular sector. USE/ADVANTAGE - For measurement of rotation angles, e.g. on machinery and for research and control applications.  Transducer eliminates conventional disadvantages of limited range, small linear region etc.
Patent DE-4104709-A1 (DE)
Inventor: HOFSAESS PETER
IPC: H01C17/28
Filed: 1991-02-15
Abstract: In order to manufacture completely ready-made (that is to say provided with connecting wires) self-stabilising resistors having PTC elements as active parts, such as those resistors especially on coil windings, such as those used by electric motors, the invention provides a method according to which bearing surfaces and covering surfaces for the PTC elements are stamped out on a metallic supporting strip, a PTC element is placed on each bearing surface and is attached, the covering surface being bent over the PTC element, the bearing surfaces and covering surfaces being provided with connecting wires, and the covering surfaces and bearing surfaces being separated from the remaining supporting strip.
Patent DE-4106887-A1 (DE)
Title: Trunk sliding clasp fastener lock - has spring lug with ramp thrust against boss accommodating grip lug
IPC: A44B19/30
Filed: 1991-03-05
Abstract: The lock is for the sliding-clasp fastener (1) on a trunk etc., having a boss(9), over which a grip lug(2) for the fastener fits via an opening. A locking member moves between the free position and one securing the lug on the boss. The member consists of a pull leg(2), thrust by a first spring(8) into the securing position, its end bearing against the boss having a ramp face (13). There can be a second spring(5,7) on the boss, thrusting the grip lug clear of it when the pull lug is moved into the free position. ADVANTAGE - Simple to operate, has no components forming any hindrance with trunk open.
Patent DE-4109112-A1 (DE)
Title: Spinning frame - has auxiliary thread assistance for roving guides in order to commence drafting
Inventor: STAHLECKER FRITZ
IPC: D01H1/00
Filed: 1991-03-20
Abstract: A process on a spinning frame to prepare the roving which is held in card cans above the frame. Before the start of spinning, the fine count roving is brought through the guide tubes by an auxiliary thread attached to it. When the roving reaches the input rollers, the auxiliary thread is detached and removed. The card cans are located above the drafting zone of a ring spinning frame. One row of cans is for three spinning units, repeated on each side of the frame, and with spinning units in a series, along the frame. The cans are held at the base in such a manner that they can be revolved, with a drive attached. This gives the fine roving a twist as it leaves the can. To ensure that it is secure during the initial introduction, an auxiliary thread from a spool is attached to the end which is hanging over the suspended guide, and drawn down the guide tube by means of suction. ADVANTAGE - The card can is revolved as the roving is withdrawn by the thread, giving a twist to the roving, and adding strength. With the twisted fine roving and high speed drafting, the slowly revolving input roller is avoided. A roving process is eliminated.
Patent DE-4116321-A1 (DE)
Title: Assembly of sensor-chip on printed circuit board - obtd. by gluing chip to carrier material, attaching to PCB inside ring shaped barrier and filling by injection moulding
Inventor: BECK WOLFGANG
IPC: G01L9/00
Filed: 1991-05-16
Abstract: Assembly prepn. features attaching a semiconductor chip to a carrier with the same or a lower expansion coefft. pref. Si or quartz-glass, and the same or lower material thickness, pref. using a thin lamination foil made of polymerisable material. A cavity is formed on the PCB for the chip-assembly using another thickness of the PCB material by laminating this to the main PCB. This surround is pref. 10-50 micron thinner than the chip and carrier assembly. The chip is mounted inside the ring and sensitive areas covered with a ductile foil, e.g. Al or Cu or temp. resistant polymer. The PCB has holes to allow penetration and locking on of the moulding material. The assembly is placed in the injection moulding machine, with a defined pressure acting on the chip surface, and plastic injected inside the ring.
Patent DE-4121508-A1 (DE)
Title: Ballasting arrangement for bulk goods ships - has collapsible tanks which separate ballast water from bulk goods tank to reduce pollution and corrosion
Inventor: PARASKEVOPOULOS GEORGE DIPL IN
IPC: B63B11/04
Filed: 1991-06-28
Abstract: The ballast devices have different volumes as containers (4,13) in the supplied and drained mode. The containers are spread over the horizontal cross-section of the strip. The containers are placed in the load or freight rooms (5,6,7) and can hold ballast water. The container (13) is located in the ballast tank and holds liquid loads. The containers are made of flexible plastics or rubber sacks. ADVANTAGE - Danger of corrosion or damage to the environment is eliminated.
Patent DE-4123301-A1 (DE)
Title: 5-Alkoxy-pyrimidin-2-yl  cpds. - used in liquid crystal mixt. and super-twist LCD, with short switching time and wide viewing angle
Inventor: WEBER GEORG
IPC: C09K19/44
Filed: 1991-07-13
Abstract: In a supertwist LCD, the novelty is that the liquid crystal (LC) mixts. contains 5-alkoxypyrimidin-2-yl cpd(s). (I) of the formula, where R1 = n-alk(en)yl, n-alkoxy or n-oxaalkyl with up to 9C; Ao = trans-1,4-cyclohexylene or 1,4-phenylene; Zo = -CH2CH2- or a single bond; r = 1 or 2; n = 1-9. The cell, formed by base plates with electrode and orientation layers, is filled with a nematic LC mixt. with positive dielectric anisotropy. The tilt angle is 1-30 deg. and twist 100-600 deg. The LC mixt. contains dielectrically positive components (II) (dielectric anisotropy over +3), opt. dielectrically neutral components (III) (dielectric anisotropy -1.5 to +3) and/or dielectrically negative components (dielectric anisotropy under -1.5) and an optically active component in such an amt. that the ratio between the film thickness and natural pitch of the nematic LC mixt.is ca. 0.28-1.7. The nematic LC mixt. has a nematic phase range of at least 60 deg. C, viscosity of max. 35mPa.s and dielectric anisotropy of min. +5 (all at 20 deg. C). USE/ADVANTAGE - The mixt. is claimed for use in an electrooptical system. The LCD has a short switching time, a large d/p window, good gradient of the electrooptical characteristic, contrast highly independent of angle and low threshold voltage, with little dependence on them. The LC mixts. have esp. favourable viscosity and clear point and has high stability.
Patent DE-4129984-A1 (DE)
Title: IC engine output control by substantially linear regulator - calculating desired air intake and internal torque for comparison of actual and desired slip
Inventor: WEYAND PETER DR
IPC: G05B11/42
Filed: 1991-09-10
Abstract: The method involves subtracting (2) a desired value (1), Seal, of slip from an actual value, Sist, computed (14) from road speed (VF) and wheel speed (VR). Wheel speed is obtd. (12) from engine speed (n) supplied by an integrator (10) with nonlinear feedback (11). The linear regulator (3) of the error signal (delta s) gives an output (alpha'') which is compensated and filtered (4) for subtraction (6) from the actual accelerator pedal signal (5),(alpha-actuell). The difference (alpha soll) feeds an air intake calculator (7) for derivation (8) of the internal torque (Mi). ADVANTAGE - Engine output torque is related linearly to controller signal over wide range without recourse to detailed torque characteristics.