baber/WOPTO huggingface dataset:
Patent DE-3905860-A1 (DE)
Inventor: BABA MITSUHIRO
IPC: H03J5/02
Filed: 1989-02-24
Abstract: In a tuning arrangement, a tuning voltage is derived from channel select pulses whose on-off periods differ for different channels by rectification and smoothing of the pulses in a circuit including a switching transistor Q11 and a capacitive element C11 whose charge discharge path is associated with the collector emitter current path of a transistor Q23 controlled by an AFT voltage whereby the tuning voltage is superposed on the AFT voltage. Transistor 23 conducts when Q11 is off so that the range of variation of the AFT voltage is made commensurate with the channel frequency and a uniform AFT voltage control over the channel range is obtained. A band select voltage at 14 alters the emitter bias of Q23. Collector of Q23 may alternatively be connected to junction of R14, C2, R12, C11 may be replaced by a cascade of RC elements and the collector of each of a plurality of AFT controlled transistors operable in different bands may be connected to any of the junctions of the RC cascade elements. Applications may be in LC television receivers. <IMAGE>
Patent DE-3908379-A1 (DE)
Title: Device for lifting patients
Inventor: WEINER RUDOLF DIPL ING
IPC: A61G7/10
Filed: 1989-03-15
Abstract: In a device for lifting patients which has an extension arm (6) articulated to a stationary column so as to be pivotable about a horizontal swivelling axis (7), a receptacle (20) for insertion of a head of a retaining bracket is provided in the vicinity of its front end. The retaining brackets are thereby held on the extension arm (6) without any pendulum movements. Necessarily, the support piece (9) is always aligned vertically. <IMAGE>
Patent DE-3908651-A1 (DE)
Title: Drawframe for spinning machines with a double-apron assembly
Inventor: EBERHARDT ROLAND DIPL ING
IPC: D01H5/86
Filed: 1989-03-16
Abstract: In known drawframes, the top-apron holder is seated pivotably on the top-roller shaft. On account of lateral guide tabs formed on the holder, it is possible to attach and remove the top apron easily only when the top-apron holder is released from the seat. Moreover, the top-apron holder is to be assigned stops which prevent it from hanging down when the supporting and loading arm is in the inoperative position. The aim is to ensure that the top apron can be attached and removed easily and that the top-apron holder approximately preserves its relative position in relation to the supporting and loading arm when the latter is moved into the inoperative position. The top-apron holder is pivotable about a bearing which is parallel to the top-roller shaft and is located in the region between the top-roller shaft and the apron-deflecting edge, thus resulting, during pivoting, in a reduction in clearance between the top-roller shaft and the apron-deflecting edge which allows the top apron to be attached and removed easily. A pressure spring assigned to the top-apron holder is designed and arranged in such a way that, in its relaxed position, it retains the top-apron holder. The spring comes into this relaxed position immediately after the start of the movement of the supporting and loading arm from the operating position into the inoperative position.
Patent DE-3912341-A1 (DE)
IPC: A21B5/02
Filed: 1989-04-14
Abstract: Wafer dough is baked between both baking surfaces of a wafer baking mould which can be opened and closed along a separation plane. The baking surfaces of the wafer baking mould which face one another define together with the sealing strips or steam sealing strips the three-dimensional shape of the baked wafer. In this process, firstly, liquid, low-fat wafer dough is poured into the open, hot wafer baking mould onto at least one of the two baking surfaces, and then the hot wafer baking mould is closed as far as the wall thickness of the wafer to be baked, whereupon the wafer dough is distributed in the closed wafer baking mould, filling it, and forms a wafer structural layer in the closed wafer baking mould. When the wafer structural layer has been formed and its surfaces facing the baking surfaces have been solidified in the closed wafer baking mould, but the wafer is as yet incompletely baked, the wafer is removed from the baking surfaces by opening the wafer baking mould once or several times during the continuing baking process, and is then baked to the finished wafer.
Patent DE-3915992-A1 (DE)
Title: Process for the reduction of nitrogen oxides
Inventor: KOCH THEODOR
IPC: F23C9/08
Filed: 1989-05-17
Abstract: In order, during the combustion of a combustion material (1, 5) which is conducted along a combustion section (3) during the combustion process, to reduce the content of nitrogen oxides in the resulting exhaust gas, the amount of oxygen is varied locally by means of the combustion air fed along the combustion section (3) in such a way that the combustion temperature does not at any point of the section essentially exceed a maximum value at which the formation of nitrogen oxides occurs. The amount of oxygen can be varied locally along the combustion section (3) by varying the oxygen content or the local feed rate of the combustion air. The variation of the oxygen content in the fed combustion air is preferably performed by adding a gas mixture lower in oxygen in comparison to air, for example returned flue gases (18). <IMAGE>
Patent DE-3927368-A1 (DE)
Title: Final treatment of machine processed photographic material - by spraying both sides with regenerating liquor after leaving bath to increase efficiency
Inventor: WERNICKE UBBO DR
IPC: G03C5/395
Filed: 1989-08-19
Abstract: In final treatment of machine-processed photographic material, the regeneration soln. for the final treatment bath is sprayed above the liq. level of the bath onto both sides of the photographic material leaving the bath. Pref. several processing units are combined to a countercurrent cascade and the overflow of the next tank is sprayed onto both sides of the material leaving the preceding tank, above the liq. level in the tank. The final bath is pref. a stabiliser bath or water. USE/ADVANTAGE - The technique is simple and can improve final treatment, reduce tha amt. of final treatment bath required and/or reduce the number of cascade stages. In an example 1000 m2 colour paper was developed for 180 s with 325 ml/m2 regeneration, bleach-fixed for 90 s with 325 ml/m2 regeneration and washed 4 times, each for 45 s with 1000 ml/m2 regeneration. Each washing tank had a vol. of ca. 97 1 and the tanks were not connected in a cascade. The bleach-fixing bath contained 50 g/l Fe-NH4-EDTA, 100 g/l (NH4)2S203 and 20 g/l Na sulphite. After processing 1000 m2 colour paper, the first washing tank contained 3.79 g/l Fe-NH4-EDTA and 7.31 g/l (NH4)2S203 and the second 0.27 g/l Fe-NH4-EDTA and 0.53 g/l (NH4)2S203. If fresh water was sprayed onto the material leaving the first washing tank, the second washing tank contained only 0.09 g/l Fe-NH4 -EDTA and 0.16 g/l (NH4)2S2O3. Hence washing was more efficient and the number of washing stages or the water consumption could be reduced.
Patent DE-3933525-A1 (DE)
Title: Inverter-fed motor excitation with isolated stator windings - involves switching between direct and indirect operations at different phases of sinusoidal cycle for separate inverters
Inventor: HUSSELS PETER PROF DR ING
IPC: H02P25/024
Filed: 1989-10-05
Abstract: The stator windings (R, S, T, R', S', T') of the synchronous motor are offset by 30 deg., and fed from separate inverters, each consisting of two rectifying thyristor bridges (e.g. N1, M1) joined by an intermediate circuit choke (L1). A set-point device maintains a value proportional to the desired torque with feedback from a rotor angle encoder. Thyristor firing patterns appropriate to the signs of the excitation currents are applied by amplifiers to the machine-side bridges (M1, M2). USE/ADVANTAGE - For direct investor operation without juddering torques, and indirect operation at higher speeds with smooth switching between two modes.
Patent DE-3939728-A1 (DE)
Title: Die casting or injection moulding appts. - has pressure meter system to monitor conditions for long component life and consistent quality working
Inventor: UHLMANN WALTER
IPC: B22D17/32
Filed: 1989-12-01
Abstract: The die casting or injection moulding machine has a pressure meter system (10,11) exclusively through the mould or die (5,6) in pressure transfer contact with the interior (4) of the mould and/or at the mould or die (5,6) in pressure transfer contact with the mould separation plane (8). At least one of the two half-moulds is in two parts, where one carries the pressure meter system (10,11) round the mould interior (4), pref. as an exchangeable mould component (5) in a frame (6), with the pressure metering (10,11) at the contact surfaces between the mould component (5) and the frame (6). A pin at the mould component (5) and a socket at the frame (6) gives an electrically conductive connection. ADVANTAGE - The appts. gives a constant quality level over long production phases to give higher productivity and longer mould part useful lives.
Patent DE-3940124-A1 (DE)
Title: Electromagnetically operated hydraulic valve for vehicular braking - has magnetic circuit with toroidal former fixed to extension from plastic body of hydraulic block
Inventor: KEMPF CHRISTIAN
IPC: B60T15/02
Filed: 1989-12-05
Abstract: The coil (18) is seated on an extension (13) of an injection-moulded plastic body (1), in a toroidal former (14) with generally rectangular cross-section and cylindrical outer and inner walls (15,16) joined to an end wall (17).  fixed pole piece (22) surrounds the plunger (12) between the cylindrical core (21) and the plastic body (1). A thin cylindrical sleeve (24) of nonmagnetic material extends over the entire length of the coil (18) between the former (14) and extension (13) and the unitary assembly of the core (21) and the pole piece (22). USE/ADVANTAGE - Pref. in antilock braking system.  Concentrates lines of magnetic force in its core to achieve same power as in conventional valve and with greater mechanical security.
Patent DE-3942175-A1 (DE)
Title: Surface treatment of terminal bodies for electrochemical batteries - involves machining of heads and shanks during rotation on pins in contact with suitably shaped rollers
Inventor: SCHWENK HANS-JUERGEN
IPC: H01M2/30
Filed: 1989-12-20
Abstract: Terminals (1) producted usually by pressure casting from molten Pb are placed on pins (3) arranged in a circle on a rotary disk (6) driven by a shaft. Each terminal in turn is machined by shaping rollers (4) rotated by parallel shafts. The pins (3) themselves rotate on the disc (6) with roller bearings. The head of each terminal is tapered by a conical tool while a number of rings constituting a labyrinth seal are formed on its shank by an adjacent roller with corresp. ribs. ADVANTAGE - Density and surface smoothness of terminals are improved.
Patent DE-4002254-A1 (DE)
Inventor: HAGEDORN PETER PROF DR
IPC: H02N2/16
Filed: 1990-01-26
Abstract: An ultrasonic motor, composed of a stator (4) made of an elastic material has one or several ultrasonic oscillators (6a, 6b) that excite travelling waves in a stator and a movable part (5a) which is urged into contact with a surface area of the stator. A second movable part (5b) is urged into contact with a second surface area of the stator in which the travelling waves are excited.
Patent DE-4004586-A1 (DE)
IPC: E04B2/96
Filed: 1990-02-15
Abstract: The invention relates to a detachable connecting element, assuming the static connecting function, for two construction frame members, in particular an inner and outer mullion or transom of a mullion/transom facade, which each have a mutually facing groove, undercut on both sides and running in the profile longitudinal direction, for positive reception of in each case one end of the connecting element. To obtain thermal separation and nondestructive uncoupling, according to the invention the connecting element is composed of plastic and has, at one end, spring tongues which are equipped with locking noses and project, in the coupled position, beyond the outer contour of the body but lie, in the uncoupled position, within the outer contour of the body, the spring tongues being retained, in their uncoupled position, by a counterspring engaging automatically behind the free end of the spring tongue. <IMAGE>
Patent DE-4007199-A1 (DE)
Title: Roof rack with antitheft device - incorporates method of securing load by lock inside car
Inventor: PIRKER HANS DR
IPC: B60R9/04
Filed: 1990-03-07
Abstract: The roof rack is for a car, it incorporates an anti-theft device to protect the goods carried on the rack. A steel band or rope (19) to secure the load is fitted to a right angled eye (10) which is attached by a tensioning element pasing through the eye to a locking unit (4) inside the vehicle. USE/ADVANTAGE - Simple universally applicable anti-theft device suitable for the protection of ski-ing equipment and surfboards carried on a vehicle roof.
Patent DE-4012280-A1 (DE)
Title: Ice breaking and clearing machine for footpaths - can be raised or lowered or swung horizontally and vertically under hydraulic power
IPC: E01H5/12
Filed: 1990-04-17
Abstract: An ice breaking machine for footpaths is attached to the front of a motor vehicle, and can be raised or lowered by a hydraulic ram (3). It can also be swivelled horizontally about a vertical axis (9) by a second ram (11), and swivelled vertically about a horizontal axis by a third ram (17). A scraper shovel (42) is located immediately behind the milling rotor (30). USE/ADVANTAGE - Adapts easily to the topographical features of the footpaths.
Patent DE-4021484-A1 (DE)
Title: Biological prepn. for treating tree roots - comprises maize germ oil with addn. of magnesium sulphate, onion or hop dust
Inventor: SEILER MARIANNE
IPC: A01N65/44
Filed: 1990-07-05
Abstract: A prepn for maintaining and recovering the health of trees based on maize germ oil with the addn. of epsom salts (Mg sulphate), onions or lupulin (hop dust). A mixt. of 1000 ml maize germ oil and 200 g epsom salts is used for pine, fir and spruce trees; a mixt. of 1000 ml maize germ oil and 500 g preserved onions is used for deciduous trees except oak; and a mixt. of 1000 ml maize germ oil and 100 g hop dust is used for oak trees. USE/ADVANTAGE - The prepns are used for treating the tree roots and have been found to have a soil-neutralising effect and a bacteria-inhibiting effect, and promote nutrition and renewal of the root cells so as promote growth and the general  health of the tree.
Patent DE-4021659-A1 (DE)
Inventor: BLUM HARALD DR
IPC: C07D263/04
Filed: 1990-07-07
Abstract: Novel bisoxazolanes which are suitable as curing agents for plastic precursors having isocyanate groups, or oxazolane mixtures consisting essentially of these bisoxazolanes, a process for their preparation by reacting 1,6-diisocyanatohexane with N-(hydroxyethyl)oxazolanes which carry a branched C5-C7-alkyl substituent in the 2-position, and the use of the oxazolane mixtures as curing agents for plastic precursors having isocyanate groups.
Patent DE-4021712-A1 (DE)
Inventor: SCHERZER DIETRICH DR
IPC: C07C263/20
Filed: 1990-07-07
Abstract: The invention relates to a process for the preparation of mixtures of diphenylmethane diisocyanates and polyphenylpolymethylene polyisocyanates (crude MDI) having a reduced iodine colour value by reacting the corresponding mixtures of diphenylmethanediamines and polyphenylpolymethylenepolyamines with phosgene in the presence of at least one inert organic solvent at an elevated temperature, wherein, after the end of the phosgenation, at least one monohydric or polyhydric polyoxyalkylene alcohol, preferably having a functionality of 2 to 3, and advantageously having a hydroxyl number of 20 to 1,800, or a mixture thereof is incorporated into the reaction mixture in an effective amount, advantageously in an amount of 0.1 to 10% by weight, based on the weight of the crude MDI, the phosgene and the inert organic solvent are then separated off, optionally up to 5% by weight, based on the weight of the crude MDI, of at least one phenol-based antioxidant and/or aryl phosphite are added to the reaction product and the reaction mixture is subjected to a thermal treatment.
Patent DE-4026216-A1 (DE)
Title: Window mechanism in car door - is accommodated in door frame to leave space for door pockets
Inventor: HASLER FRANZ DIPL ING
IPC: E05F15/689
Filed: 1990-08-18
Abstract: The window (4) in a car door is operated by a mechanism (17) located at the base of the car door (1).  The glass (4) being led by guides with sealing strips up into and down from the frame (3).  The window is operated by a power drive (19), a lifting mechanism (18) and a connection (15) to the glass window. The lifting mechanism (18) is at least partly accommodated within the window frame member (9), thus the overall space requirements of the window operating mechanism in the space between the door panels (2) is reduced. USE/ADVANTAGE - Window system in car door releases space in the area between the inner and outer panels for other uses, such as storage pockets.
Patent DE-4027501-A1 (DE)
Title: Terminal resistance for broadband communication cable -  has centre pin setinto body with resistive elements coupled to spring contacts
Inventor: SCHLUETER DIETER
IPC: H01R13/66
Filed: 1990-08-30
Abstract: The terminal resistor consists of a bush of heat resistant plastics material (1) that is thin walled to reduce the amount of material. The tip section (1) is formed to receive a contact pin (5). Resistive elements (2,3) are set into the contact region and these are coupled to contact spring elements (6) set around the periphery. The pin is formed with grooved and tapered sections embedded within the main body. The pin extendse (5) to engage with a contact bush. ADVANTAGE - Simplified mfr. Reduced material content.
Patent DE-4029524-A1 (DE)
Title: Evaporator for thickening solns. esp. sugar and starch -  uses falling flow principle and has heating tubes surrounded in lower heating area by ring of riser tubes entering evapn. area
Inventor: LUEHRS HERMANN DR ING
IPC: B01D1/10
Filed: 1990-09-18
Abstract: An evaporator for thickening solns. e.g. sugar and starch solns. uses a falling flow principle and utilises an existing evaporator with heating pipes which pass through the base of the heating area and enter a syrup-water vapour return chamber. The lower region of the heating chamber has an enlarged dia. and has additional heating pipes which form a ring around the falling flow evaporator. The additional pipes form risers, the lower ends being in the syrup-water vapour return chamber, the upper ends entering the evapn. area through an annular base around the evaporator jacket. Outlets are provided for water vapour and syrup. USE/ADVANTAGE - The evaporator thickens solns. esp. starch and sugar solns., retains the advantages of the falling flow principle, but without using additional syrup separators and reduces piping costs, esp. for removal of water vapour.
Patent DE-4037392-A1 (DE)
Title: Aq. electrolyte for anodising light metal to white halide-resistant oxide - e.g. for optical precision appts., contg. potassium phosphate, soda and ammonia
Inventor: SCHMIDT JUERGEN
IPC: C25D11/02
Filed: 1990-11-22
Abstract: Electrolyte for the prodn. of white oxide ceramic surface coatings on light metals or alloys by plasma chemical anodic oxidn. consists of an aq. soln. of KH2PO4, Na2CO3, ethylene diamine (I) and NH3. The electrolyte is prepd. by mixing 0.4-0.7 mole./1 KH2PO4, 0.5-0.6 mol/1 NaCO3, 0.3-0.5 mole./1 (I) and 0.3-0.5 mole/l 25% NH3 soln. Anodic oxidn. is carried out at a current density of 0.01-0.1 A/cm2, pulse frequency of 200-1000 Hz and potential of 250-320 V. USE/ADVANTAGE - The electrolyte is claimed for use in the prodn. of halide-resistant oxide coatings on light metal components of optical precision appts. or in plant for the prodn. of optical glasses or preforms for optical fibres by the CVD process. The coated material can repalce short-lived materials, which entail high maintenance costs, e.g. PTFE, which undergoes cold flow. The electrolyte is free from fluoride, avoiding disposal problems
Patent DE-4040438-A1 (DE)
Title: Belt conveyor for moving loose material substantially vertical
Inventor: GRATHOFF HARTMUT DIPL ING
IPC: B65G15/12
Filed: 1990-12-18
Abstract: The belt conveyor for the vertical conveyance of loose materials has a vertical conveyor belt (2) and a top belt (7) for moving the material (10) forwards horizontally. The conveyor belt is provieed with two entrainment strips (1) and flat belts forming two endless side sections.     The upper area of inlet chutes (12) directly in front of the material transfer in the area of the entrainment strips (1) forms, with the part of the side wall (13) above, a unit (14) which is resiliently mounted so that if the material particles jam between this unit (14) and the entrainment strips (1) the resiliently mounted unit moves outwards and the side wall (13) of part of the side wall belonging to this unit forms an incline which forces the material particles back into the belt conveyor.
Patent DE-4042381-A1 (DE)
Title: Transportation unit for workpieces - uses on-board sensors to detect pressure of obstruction and prevent damage
Inventor: MAIER GERNOT ING GRAD
IPC: B23Q7/14
Filed: 1990-05-08
Abstract: A transportation vehicle e.g. wagon or carriage transfers workpieces from one location to another by moving along a track. Sensors (12, 18, 22) and switches (23, 12) are installed on-board, a displacement sensor (12) and a pressure switch (13) being placed in-front. Signal generators (16, 17) are set into the track. A microprocessor (10) responds to the sensor signals. Collision with an obstruction is prevented by the displacement sensor signal. AADVANTAGE - Improves operational safety.
Patent DE-4101289-A1 (DE)
Title: Thermal and sound insulating mortar
Inventor: FARAGO LASZLO DIPL ING
IPC: C04B28/02
Filed: 1991-01-17
Abstract: Prepn. of monoclinic BaO.Al2O3-2SiO2 involves (1) forming an intimate mixt. of powders of (a) 1 mole of BaCO3, (b) 8xy moles of AlF3, (c) 1-x moles of Al2O3, and (d) 8xy+2(1-x) moles of SiO2 for each mole of BaO.Al2O3.2SiO2 to be produced. In (d) x = 0.02-1.0 and y = 0.5-1. (2) forming topaz by heating mixt. produced in (1) to 700-900 deg.C in an atmos. of gases generated by the topaz formation; and then (3) heating mixt.  produced in (2) in an atmos. of gases generated by the topax and BaO.Al2O3.2SiO2 formations at (a) 900-1590 deg.C, if x = 0.17-1.00, (b) 950-1590 deg.C, if x = 0.10-0.17 (c)  1000-1590 deg.C, if x =  = 0.05-0.10 or (d) 1300-1590 deg.C, if x = 0.02-0.05 until monoclinic BaO.Al2O3.2SiO2 is produced.
Patent DE-4108529-A1 (DE)
Inventor: HEEP DIETER
IPC: B65G53/56
Filed: 1991-03-15
Abstract: A pipe switch for bulk materials to be conveyed pneumatically is described, in which a rotor with a rotor pipe is arranged in a stator with pipe outlets and in which the rotor has a sealing effect in relation to the stator. In order to achieve the necessary sealing effect, it is provided that the rotor or the stator have a jacket made of plastic material, the parts provided with the plastic material being either entirely of plastic or a combination of metal and plastic. <IMAGE>
Patent DE-4109188-A1 (DE)
Title: Method of isolating individual wood boards from stack in milling machine - involves tilting stack conveyor at angle and sliding stack upwards to another conveyor
IPC: B27M3/00
Filed: 1991-03-18
Abstract: A method of isolating individual wood boards from a stack in a wedge pronged milling machine to which a stack of wood boards is fed on a conveyor (2). The stack (1) is tipped into an inclined position over an axle (12), and lifted above the line A-A of the conveyor (2). From this raised stack of boards (8) the bottom board (13) is removed and laid across another conveyor (10), one after the other. This conveyor (10) is driven at greater speed than the stack conveyor (2), and it is the section (3) of the stack conveyor (2) which is tilted into the inclined position. USE/ADVANTAGE - For stacks up to eight hundred millimetres there is no dead time.