baber/WOPTO huggingface dataset:
Patent DE-3826565-A1 (DE)
Title: Method for producing an electrical printed circuit board
Inventor: HALECKER HORST ING GRAD
IPC: H05K3/00
Filed: 1988-08-04
Abstract: Method for producing an electrical printed circuit board An electrical printed circuit board (1) which is metallised on one side is placed with its non-metallised side onto a cutting plate. A cutting die (4) has diametric play of approximately 20 % of the printed circuit board thickness with respect to an orifice (5) in the cutting plate (3). During stamping, a conically expanding hole is produced which has an insertion incline for connecting elements of the electrical components to be fitted. The hole is considerably narrower on the metallised side, so that the connecting elements can be soldered to the conductor tracks well. <IMAGE>
Patent DE-3836478-A1 (DE)
Inventor: ROSEGGER JOSEF
IPC: F16H55/30
Filed: 1988-10-26
Abstract: A chain wheel for a round steel chain comprises a wheel body (1) and detachable double teeth (7). The teeth (7) are secured in recesses (3) of the wheel body (1) by bolts (14) and nuts (15). The teeth (7) each have two flanks (8), for supporting an upright chain link (18), and supporting surfaces (12) for supporting lying chain links (19). <IMAGE>
Patent DE-3840064-A1 (DE)
Title: Thermal relay having a switching rocker
Inventor: LIEBER KARL DIPL ING
IPC: H01H83/22
Filed: 1988-11-28
Abstract: The invention relates to a thermal relay having a bimetallic release (which is accommodated in a housing), a transmission device and an auxiliary contact module with a switching rocker which can move about a bearing axis (bearing shaft), the transmission device switching the auxiliary contact module, as a consequence of the bimetallic elements bending, by initiating the movement of the switching rocker, the centre of gravity of the switching rocker lying, as a result of a defined mass distribution, on the bearing axis or approximately on the bearing axis.
Patent DE-3841123-A1 (DE)
Title: Nozzle mixing body for dry concrete spraying in the form of a connection stub
Inventor: FREIENSTEIN HEINRICH
IPC: B28C5/02
Filed: 1988-12-07
Abstract: The nozzle mixing body for dry concrete spraying is generally in the form of a connection stub (20), (a) whose axial interior (22) has a first end region, which exhibits a connection (24) to a delivery line (26) for dry concrete mix delivered in a thin flow, and a second end region which forms the outlet end (30), (b) which exhibits, radially outside said interior (22), an annular space (38) for an aqueous fluid and an annular chamber (40) for compressed air, these each being connected to corresponding supply lines (42, 46) and (c) which has injection ducts (54, 62) for the fluid and the compressed air, which are arranged at equal division angles around a longitudinal axis, connect the annular space (38) and the annular chamber (40) to the interior (22) and, in pairs, intersect one another such that fluid and compressed air are mixed and said mixture is injected into the axially delivered flow of the dry mixture before the latter leaves the interior (22). The annular chamber (40) is arranged concentrically with respect to the annular space (38). Each pair of injection ducts (54, 62) is formed in a rotationally symmetrical manner with respect to a duct axis (56). In an axially offset manner, an equiaxial injection duct for fluid is assigned to each injection duct for compressed air. The respectively inner injection duct (54) has a funnel region (52) and a bore (50) which continues said region as far as the interior (22) and has a length of at least 5 mm, ... Original abstract incomplete. <IMAGE>
Patent DE-3901233-A1 (DE)
Title: Burner for a gas-turbine engine (power plant)
Inventor: WILLIS JEFFREY DOUGLAS
IPC: F02B3/06
Filed: 1989-01-17
Abstract: A burner (10) for a gas-turbine engine for burning diesel fuel comprises an annular member (11) and a central member (22) which is situated coaxially inside the annular member (11) so as to produce an annular flow path (24) therebetween. An annular fuel feed line (15) cooperates at the upstream end of the burner (10) with the annular member (11) and the central member (22) in order to produce two coaxial annular channels (21, 26) which direct air into the annular flow channel (24) with a minimum of turbulence. The slight turbulence inside the burner (10) reduces the risk of spontaneous combustion inside the burner (10). <IMAGE>
Patent DE-3901289-A1 (DE)
Title: Illuminated operating element
Inventor: KOFINK WOLFGANG DR
IPC: H01H19/00
Filed: 1989-01-18
Abstract: An operating element (15) is proposed for manually operating an electrical device, at least one luminous element (19) illuminating the operating element (15) and means (21) for generating at least two different luminous states of the luminous element (15) being provided. In this case, a function, a parameter, or a state of the electrical device is assigned to each luminous state. As a result, the operating element has two functions, in that it displays, in addition to the operation of the electrical device, at least one of the mentioned variables so that additional display or monitoring functions can be provided without subjecting the electrical device to constructional changes. <IMAGE>
Patent DE-3910962-A1 (DE)
Title: Switch
Inventor: ONODERA SHINYA
IPC: H01H21/18
Filed: 1989-04-05
Abstract: The switch consists of a moving element (4) which is provided with at least one moving contact (6), and a support (2) having stationary contacts (3) against which the moving contacts rest. The moving element (4) is operated via a control lever (7) mounted on it and can thus be guided over the support (2), as a result of which the moving contact and the stationary contacts come into touching contact successively. In addition, the switch is provided with a first reference point on the operating lever (7) and a second reference point on the support (2). The moving contact (6) is positioned accurately with respect to the stationary contacts (3) on the support (2) when the first reference point is aligned with the second reference point. <IMAGE>
Patent DE-3911865-A1 (DE)
Title: Automatic transmission
Inventor: KIM JAE KI
IPC: F16H3/44
Filed: 1989-04-11
Abstract: An automatic transmission is arranged between an output shaft of a primary drive and a load of a motor vehicle. The transmission has an input rotor, which is coupled to an input shaft carrying a plurality of planet gears, an output rotor, which is coupled to an output shaft carrying a plurality of planet gears, and a guide for guiding rotary motions of the input rotor and of the output rotor. The motive power transmitted to the output shaft gives rise to a reaction force corresponding to a state of the output shaft. The reaction force conveys the motive power available on the input shaft to the output shaft and the speed of the output shaft is thereby automatically increased or reduced.
Patent DE-3916838-A1 (DE)
Inventor: LIPPOLD HANS-JOACHIM DR
IPC: B29C65/00
Filed: 1989-05-19
Abstract: Filter cartridge, in particular with a block-like shape, having a plurality of fold walls created by folding a permeable filter medium in a zig-zag fashion and which is provided with offsets formed by scoring so that a medium to be filtered passes through from one edge area of the zig-zag folding in the direction of the edge area of the folding on the opposite side. The offsets of adjacent fold walls which face one another contact each other as spacers and the filter medium is at least hardenable in the region of said offsets under the influence of heat. The permeable filter medium has fibres of thermoplastic material and the configuration of the fibres becomes more compact. The rigidity of the filter medium is increased by the welding of the filter medium under the influence of heat in the region of the offsets.
Patent DE-3920208-A1 (DE)
Title: Bag for keeping foodstuffs cold whilst being carried - has integrally formed sealed pockets filled with ice, and sheets joined with sliding clasp fastener
IPC: F25D3/08
Filed: 1989-06-21
Abstract: The bag is made from a sheet of flexible material in which small sealed pockets are formed. These pockets are filled with water which is then frozen. The sheet can be formed into a cylinder with the sheet ends joined together with a sliding clasp fastener. Circular end walls are attached, also with sliding clasp fasteners. Handles are attached to enable the bag to be conveniently carried. USE/ADVANTAGE - The bag is intended only for use for short  intervals and is cheaper and simpler than those bags equipped with electrically operated cooling devices.
Patent DE-3921708-A1 (DE)
Inventor: MARX GUENTER
IPC: C22C9/00
Filed: 1989-07-01
Abstract: There are described wearing discs for crimping machines, consisting of a sintered material formed from a metal and carbon and having an apparent density of from 4 to 7 g/cm<3>. 
<??>The metals employed for the sintered material are good thermal conductors, in particular copper or alloys.
Patent DE-3926966-A1 (DE)
Title: Device for forming gaps in overlapping material flow - has stationary guide rollers and different speeds for outlet conveyor
Inventor: KIRSCH KLAUS DIPL ING
IPC: B65H33/12
Filed: 1989-08-16
Abstract: The device can form forming gaps in an overlapping material flow. It has an entry conveyor and exit conveyor arranged in series with stationary adjoining roller pulleys. The roll pulley (9) of the entry conveyor at the output side can be raised and lowered. During the gap formation in the material flow the exit conveyor (6) can be driven at a higher speed than the entry conveyor. ADVANTAGE - Simplified design of conveyor which can form gaps in a continuous flow of overlapping sheets.
Patent DE-3934597-A1 (DE)
Title: Seal between two door sections - consists of fitment, vertical flange, and section adjoining
Inventor: ROSSIE EGBERT
IPC: B60J10/86
Filed: 1989-10-17
Abstract: The seal (7) between two components, esp. between a door outer part (1) and the door support structure (3) has a section (11) next to a fitment (13) protruding beyond the vertical flange (5) of the first component (1). The top (15) of the fitment (13) forms a surface going up to the second component (3). Any water getting from the second component (3) onto the top (15) of the fitment (13) is evacuated via the flange (5) on the first component (1). USE/ADVANTAGE - The seal avoids water collecting in parts of vehicle door.
Patent DE-3935615-A1 (DE)
Title: Toilet seat with protective cover
IPC: A47K13/16
Filed: 1989-10-26
Abstract: The toilet seat has a protective cover (17) preventing direct contact, which is extracted from a chamber (20) in a top part (20). The latter is above the bowl (1) and containers the flushing tank (23) for it. The seat (5) is lifted and lowered by a drive mechanism operated when desired and in the lifted position extracts a cover from the chamber. When the seat is relieved of load in the lowered position the bowl is flushed and the cover is removed from the seat surface.
Patent DE-3938682-A1 (DE)
Title: Drying chamber for ceramic products - has fan which blows air in wide stream over products
Inventor: THOMA KARL
IPC: F26B21/02
Filed: 1989-11-22
Abstract: Ceramic products such as bricks or tiles are dried in a drying chamber (1). A frame (22) inside the drying chamber has racks (42) to support the bricks or tiles (21). The fan inlet (5) and outlet (6) both face the racks (42) supporting the bricks or tiles. Air is drawn into the fan from the chamber and delivered in the form of a wide stream (19) which flows over the bricks or tiles. The stream (19) of air flows over the full length of the drying chamber and is deflected back to the fan by the end wall (23). USE - Drying ceramic products.
Patent DE-3942710-A1 (DE)
Inventor: STRIEK RALF-JUERGEN DIPL ING
IPC: H02M5/257
Filed: 1989-12-22
Abstract: The invention relates to a method and a circuit for dynamically triggering a plurality of triacs, which are to be triggered simultaneously, in a low-voltage circuit. 
<??>According to the invention, a triggering pulse sequence, consisting of a plurality of triggering pulses, is initiated and the triacs are triggered shortly one after the other in series in such a manner that the electrical load of the components, e.g. in the n-channel driver 7, corresponds to the triggering load of a single triac. 
<??>The invention ensures, inter alia, that the components are not overloaded for triggering the triacs and are thus protected against damage. 
<IMAGE>
Patent DE-4001155-A1 (DE)
Inventor: ROTHE ANSELM DR RER NAT
IPC: C12Q1/46
Filed: 1990-01-17
Abstract: A diagnostic composition for the enzymatic detection of cholesterol, which contains a scleroprotein or scleroprotein hydrolysate, and a method for producing a reagent film for detecting cholesterol using scleroproteins or scleroprotein hydrolysates and the use of scleroproteins or scleroprotein hydrolysates for increasing the enzyme stability and the temperature independence in compositions for detecting cholesterol. 
<IMAGE>
Patent DE-4003704-A1 (DE)
Title: Door for shower bath cubicle - consists of hinged panels held in fully open or in fully closed position by spring
IPC: A47K3/36
Filed: 1990-02-08
Abstract: The door of a shower-bath cubicle is formed from hinged panels (1, 2) which run on horizontal guide rails. The panels are extended so that they all lie in a common plane when the door is closed. When the door is open the panels are folded against each other in zig-zag fashion. Adjacent panels are connected to each other near their common hinge by a tension spring (4). This spring is positioned relative to the hinge axis so that the spring holds the panels in the closed position. As the panels are swung towards each other, and the line of action of the spring passes through the dead centre, the spring then acts to bring the panels to the open position and then holds the panels in that position. USE - Door for shower-bath cubicle.
Patent DE-4007514-A1 (DE)
Title: Centrifugal fertiliser distributor system - has protective ring preventing wear between drive-shaft and hopper floor
Inventor: DREYER HEINZ DIPL ING DR
IPC: A01C15/00
Filed: 1990-03-09
Abstract: The centrifugal fertiliser distributor has a hopper and at least two rotating driven centrifugal disks. The drive shafts for the dosing and application unitm project from below through the floor of the hopper. A protective ring (71) is arranged on the ejection element (70), and is inverted over the drive shaft (10) or drive sleeve of the dosing and application unit and extends into the opening in the floor plate. USE/ADVANTAGE - Prevents any wear between the drive shaft and drive sleeve for the application and dosing unit in the region where it passes through the floor plate.
Patent DE-4010731-A1 (DE)
Title: Carrier for lithographic printing plates - has paper base impregnated with special electron beam-cured resin, and with layer of resin on at least one side
Inventor: HARADA JUNJI
IPC: B41N1/14
Filed: 1990-04-03
Abstract: Carrier (I) for lithographic printing plates comprises a paper base with a layer of resin on at least one side, the paper base is impregnated with 3-30 wt.% of a resin (II) which can be cured with an electron beam (w.r.t. total amt.  of paper and resin); (II) is hardened by irradiation with electrons and the hardened prod. has Tg = 100 deg.C or higher. Resin layer consists of resin (II); (II) is a polyolefin resin, or a mono- or poly-functional (meth)acrylate, polyfunctional oligomer, polyester-(meth)acrylate, epoxy-(meth)acrylate, or a 1:1 mixt. of tris(2-hydroxyethyl)-isocyanuric ester (III), trimethylolpropane acrylate or alpha, omega-tetra-acryloyl -bis(trimethylpropane) -tetrahydrophthalate and a polyalkoxylated Bisphenol A diacrylate; (II) in the resin layer is a mixt. of 50 wt.% Bisphenol A diacrylate, 49.5 wt.% pentaerythrityltriacrylate and 0.5 wt.% perfluoroalkyl acrylate; polyolefin resin is PE, PP, polybutene, polypentene, EP copolymer or a mixt. thereof, or a mixt. of LDPE and HDPE; paper base is natural or synthetic paper fibre or synthetic paper, natural paper fibre; (I) has a coating on the back; the layer of (II) is cured with an electron beam after  application to the paper base. USE/ADVANTAGE - The invention enables the prodn. of a  light-weight paper-based carrier with improved mechanical strength, dimensional stability, resistance to pressure, printability, flexural properties and handling properties, by using paper impregnated with a special electron-curable resin.
Patent DE-4011364-A1 (DE)
Title: Roller with rotating hollow body - has non-rotary crosshead and hydraulic support, movable guide ring and guide surfaces
IPC: F16C13/00
Filed: 1990-04-07
Abstract: The roller consists of a rotating hollow roller (5) through which goes a non-rotary crosshead (4) sticking out at the ends (4') from the ends of the hollow roller (5). A hydraulic support (8) is supported on the crosshead (4) inside the hollow shaft (5) and acts against the inner periphery (6) of the hollow shaft (5). A movable guide ring (13) surrounds one protruding end (4') of the crosshead (4) and has the hollow roller (5) pivot mounted on it. Smooth parallel facing guide surfaces (26, 27) inside the guide-ring (13) rest on corresponding parallel facing guide surfaces (16, 17) of the cross head (4). USE/ADVANTAGE - The roller reduces friction.
Patent DE-4016087-A1 (DE)
Title: Arc coating unit eliminating droplets or spray on substrate - by using centrifugal force of rotating cathode to divert them into wall encircling the cathode
Inventor: HAUZER FRANSISCUS JOHANNES MAT
IPC: H01J37/32
Filed: 1990-05-18
Abstract: Coating of substrates by arc evaporation in an evacuated chamber has the novelty of using the centrifugal force generated by a cathode (3) rotating at 10-1000rpm to eliminate droplets or spray that are unsuitable for depositing on the substrate. The substrate is mounted on a carrier (9) which itself rotates, but at a lower speed. The cathode (3), which is in the form of a plate, thick-walled pipe of pipe section, is mounted on a carrier with a drive shaft (5) and is encircled by a cup-shaped part (6) with a circular wall (11) extending over the circumference of the cathode. The undesired droplets are flung off and captured within this wall (11). ADVANTAGE - Higher quality coatings are obtained uncontaminated by droplets of spray from the cathode.
Patent DE-4032435-A1 (DE)
Title: Electrohydraulic control device for parallel hydromotors -  has main valve stage associated with each hydromotor and common pre-control stage
Inventor: WALTER HEINZ ING GRAD
IPC: F15B21/08
Filed: 1990-10-12
Abstract: The electro hydraulic control device (10) uses respective valves (13,14) for controlling the direction and velocity of each hydrometer (11,12). The valves (13,14) each have a main stage (15,16) associated with a common pre-control stage (17), with a control circuit (54) having switching valves (36,37) for operation for both main stages (15,16) in alternation. Pref. the pre-control stage (17) is operated via a proportional magnet (45), with 4/2 way switching valves (36,37) between the pre-control stage (17) and the main valve stages (15,16), the latter having position sensors (28,31) providing signals fed back to the position regulator (52) coupled to the pre-control stage (17). ADVANTAGE - Reduced valve complexity.
Patent DE-4033873-A1 (DE)
Title: Film prepn. for vacuum deep drawing - by blow extruding polyolefin contg. vinyl acetate, and contg. additive, blow drawing and cooling
Inventor: QUAST MANFRED DIPL ING
IPC: B29C48/08
Filed: 1990-10-22
Abstract: In prepn. of a film, a polyolefin contg. 5-20% of vinyl acetate, and 4-10% of additives, with melt index 3g/10 mins., is blow-extruded at 140-160 deg.C, and immediately after leaving the ring-nozzle at 8-20m/sec, is blow-drawn lengthways and widthways at a ratio of 1:1. The film is cooled in the 2nd third of the distance between the ring-nozzle and the film conveyor roller. USE/ADVANTAGE - The film is used in vacuum deep-drawing, at ratio 1:6, and has elongation at break of 600%. Prodn. can be automated.
Patent DE-4038376-A1 (DE)
Title: Safety device for coupled sections of pressurised pipeline - comprises cover for coupling bolts which is movable between locked and working positions according to pressure
Inventor: WEDEMANN ERNST
IPC: B08B9/055
Filed: 1990-12-01
Abstract: Sections (3) of pipeline are held together by bolts (9) at joints which are protected by a cover (4) in abutment against a stop (51). Correct coupling and locking are signalled (52) to a control unit (53) wired to an excess-pressure detector (54) and relief valve (55). - The detector (54) may be combined with a two-step switch guaranteeing access to the bolts (9) by automatic uncovering when the pressure is less than a predetermined threshold value.
Patent DE-4103460-A1 (DE)
Title: Metal and phosphoric acid recovery from metal phosphatisation sludge - by alkaline hydrolysis, solid liquid sepn. and recovery of acid and alkali from liquid
Inventor: BRUECKEN VOLKER
IPC: C23C22/86
Filed: 1991-02-06
Abstract: In the treatment of phosphation sludge contg. metal phosphates (I), formed during phosphation of metals, pref. steel, Zn and Al, by stirring with aq. alkali soln. (II) to convert (I) to metal hydroxides (III), the novel features are that (a) the suspension (IV) is sepd. into (III) and alkali phosphate soln. (V); and (b) (V) is sepd. into H3PO4 and (II). The sludge is treated with (II), pref. aq. NaOH or KOH soln., in 1:(1-10), pref. 1:(3-5) ratio at 60-120, pref. 65-85 deg. C. (IV) is sepd. by solid/liquid sepn., then the filter cake is washed and dried. (V) is sepd. by membrane electrolysis, into H3PO4 and (II), which are recycled. (III) is converted to oxide by heating to 1000-1200 deg. C, pref. in a rotary calciner. Also claimed is the appts. consisting of a lixiviation vessel with stirrer, solid/liquid sepn. appts., e.g., decanter, filter press, band filter, etc., and membrane electrolysis cell. USE/ADVANTAGE - The technique eliminates the need to dump phosphation sludge. The metals are recovered and the chemical solns. are recycled, which minimises the addn. of fresh chemicals. The metal oxides obtd. by heating (III) can be used as raw material in Zn prodn., when all other materials are converted to slag, which is also used in Zn prodn.
Patent DE-4113342-A1 (DE)
Title: New 2,5-di:substd. 1,3-dioxan cpds. with (phenyl-)cyclohexyl gp. - are components of liq. crystal media for twisted cell devices, with high stability, good solubility, etc.
Inventor: REIFFENRATH VOLKER
IPC: C07D319/06
Filed: 1991-04-24
Abstract: 1,3-Dioxan derivs. of formula (I) are new: Q = CHal H(3=l); OCnH(2n+1) or CH=CH CnH(2n+1); Hal = F or Cl; l = 1-3; n and r = 0-5; Xa = Xb = O and Ya = Yb = Ch2; Xa = Xb = CH2 and Ya = Yb = 0; Z1 and Z2 = C2H4 or single bond; A1 = trans-1,4-cyclohexylene or 1,4-phenylene (or its 3-fluoro or 3,5-difluoro- deriv.); m = 0-2; X = F, Cl, CF3, CN, OCF3 or OCHF2; Y and Z are each H or F. Z1 and Z2 = bond, Ya and Yb = 0; and Q = CH2Hal, OMe or CH = CH2. Pref. X = F, Cl, CF3 or OCF3; (a) Y = H or F and Z = H; (b) Y = F and Z = 6-F; m = zero; r = 2-4 or also 1 when Q is CH = CH2. USE/ADVANTAGE - (I) are useful as components of liq. crystals media for electrooptical displays, esp. those operating on the twisted cell principle. They provide media which remain nematic down to low temps., have excellent chemical stability and elastic properties; low threshold voltage (and its temp. dependence), and/or low optical anisotropy. (I) are colourless; readily soluble in other media components; have high positive dielectric anisotropy and favourable viscosity properties. They provide super twist devices having a very steep slope to the electrooptical characteristic.