baber/WOPTO huggingface dataset:
Patent DE-4115086-A1 (DE)
Title: Prodn. of EP-additives - by sulphurising unsatd. aliphatic or alicyclic cpds. in presence of aromatic di:sulphide(s)
Inventor: BUECHNER REINER DR
IPC: C10M159/12
Filed: 1991-05-06
Abstract: Prodn. of EP-additives, based on S and P, for lubricants comprises sulphurising unsatd. aliphatic cpds. having 6-22C atoms and/or alicyclic unsatd. cpds., such as DCPD, purine or dialkylphosphates, of 4-8C atoms in the presence of aromatic disulphides in an amt. of 10-70% and S-catalysts in amt. of 0.1-20% at 80-150 deg.C. Unsatd. aliphatic plant alcohols contg. 9-22C atoms and/or olefins contg. 6-22C atoms and/or alicyclic unsatd. cpds. such as DCPD, purines and/or 4-8C dialkylphosphates, in ratio 1-2:4-1:2-0.5 are reacted in a single step with S in the presence of aromatic disulphides and a catalyst mixt. comprising mercaptobenzothiazole and aliphatic amines in ratio 2-1:1-4 at 100-150 deg.C for 2-4 hrs. ADVANTAGE - The additives do not contain any chlorine. An EP additive was prepared by mixing 500 (pts.wt.) isopentadecene, 300 aliphatic unsatd. alcohol based on rapeseed oil, 300 dibutylamine, 150 mercaptobenzothiazole, 200 S, 300 dibutylphosphite and 1000 dixylyldisulphide and stirred in N2 for 3 hrs. at 140 deg.C 3 wt.% of the additive was added to a hydrorefined neutral oil of viscosity 60 mm2/g at 50 deg.C and then subjected to a cog bracing test (TGL26890). Result was more than 1334 N/mm compared to the oil without the additive of 400-7 N/mm
Patent DE-4116728-A1 (DE)
Title: Fruit harvester with video camera on gripper head - has horizontal holder with vertical rotary axis with articulated parallel arms with gripper head
Inventor: KASSAY LASZLO DR
IPC: A01D46/24
Filed: 1991-05-10
Abstract: The harvester gripper head is fitted to an articulated arm and has a detection with a video camera, and an evaluator control with a computer. It has a horizontal holder (1) with a vertical rotary axis, on which are fitted articulated arms (7-12), mutually parallel and movable in the vertical plane. At their joints the arms are fitted with angle generators (13). They carry each a gripper head. They are fitted with two video cameras (15, 16) whose optical axes include a sharp angle. The harvester is pref. in the form of an adaptor, fittable to a vehicle (17). The horizontal holder may include a spring strip (5). ADVANTAGE - Low-cost design with improved, effective work rate.
Patent DE-4117387-A1 (DE)
Title: New reactive dyestuff cpds. for dyeing e.g. cotton or polyamide
Inventor: REDDIG WOLFRAM DR
IPC: C09B62/02
Filed: 1991-05-28
Abstract: New reactive dyestuffs (I) with 4-(5-chloro-6-fluoro- or 2,6-difluoro-pyrimidin -4-yl-amino)-alkyl-, -aryl- or aralkyl-amino)-6-chloro- or -fluoro-s-triazin-2-yl-amino gp(s). are of the formula (I), where D= an organic dyestuff gp.; R, R1 and R2= H or (substd.) 1-4C alkyl; A= a (substd.) aliphatic, aromatic or aromatic-aliphatic bridging gp.; X= Cl or F; Pym= a pyrimidinyl gp. of formula (IIA) or (IIB). n= 1 or 2.     (I) are prepd. (claimed) by condensing an organic dyestuff of formula D-(NHR)1-2 (III) or its precursor, 2,4,6-trifluoro- or 2,4,6-trichloro-s-triazine, a diamine of formula R1HN-A-NHR2 (IV) and 4,6-difluoro-5-chloro- or 2,4,6-trifluoro-pyrimidine and, if necessary, converting the precursor to (I).
Patent DE-4125300-A1 (DE)
Title: Steering device for front wheel of motorcycle - has two-part steering shaft, connected by joint with rotatory degree of freedom
Inventor: DOEPFERT HAGEN
IPC: B62K25/24
Filed: 1991-07-31
Abstract: A wheel carrier supporting the axle shaft of the wheel is retained pivoted by a trailing link and a universal joint. The steering movement is introduced by a steering actuator, and there is a two-part steering shaft. The shaft parts are telescopic, and connect steering actuator to wheel carrier. Both parts (24, 25) of the steering shaft (26) are connected via a joint with at least one rotatory degree of freedom. The rotary axis of the joint extends in transverse direction. The upper shaft part is guided axially displaceable in a bore, associated with the steering actuator, and the lower shaft part is similarly guided in a bore, associated with the wheel carrier. ADVANTAGE - Reduced pump-steer-effect.
Patent DE-4126085-A1 (DE)
Title: Support stand for trailer caravan - uses selectively displaceable connecting rod and winding mechanism
Inventor: HENDRIKX RUDOLPH
IPC: B60S9/06
Filed: 1991-08-07
Abstract: Support stand for a trailer, especially a caravan, having a bracket (6), a spindle (5) with a nut (4) and a swivel mounted connecting rod (7). The spindle is displaceably arranged under the longitudinal beam (2) of the vehicle frame and is capable of several locking positions. The stand (3) is selectively displaceably coupled to the nut or the bracket and the connecting rod is selectively displaceably coupled at its other end to the bracket or the nut. ADVANTAGE - Caravan support stand in which the gap between the vehicle frame and the ground can be to a large extent bridged without the time-consuming use of the winding mechanism.
Patent DE-4127222-A1 (DE)
Title: Profiled component prodn. on base - by extruding synthetic resin profiles contg. colouring directly on to surface, partly curing, checking and completing cure if undamaged
Inventor: HARA KIYOTAKA
IPC: B41M3/00
Filed: 1991-08-16
Abstract: A profiled component is produced, with a substrate and a number of gps. of profiled sections on one side with various spectral properties, each gp. having a particular size which repeats in both directions to form a pattern. In the process the elements of each gp. are formed directly on one side of the substrate using a plastic material contg. colouring; the elements are next allowed to change into a semi-hardened state in which at least a surface part of the elements become hard; the elements of each group are then checked each time they are formed in case any part should be faulty and, if so, they are corrected accordingly; the elements in each group are finally allowed to harden completely. ADVANTAGE - The procedure eliminates any problems in correcting. In particular it enables profiled components such as colour fibres to be produced at low cost.
Patent DE-4127246-A1 (DE)
Title: Prefab. component for cladding pier footings - uses concrete form placed around steel base on foundation and concrete cast into form
IPC: E04C1/39
Filed: 1991-08-17
Abstract: The component for cladding pier footings in a building is of prefab. construction. In order to protect the supporting member (25) and/or the building users from coming in contact, the support has a pre-cast concrete half shell (2) placed around it. Concrete is poured into the annulus between the support and the concrete cast, thus producing an integral unit. USE/ADVANTAGE - Pier footings cladding construction allows attractive detail of support footings as well as protection.
Patent DE-4130008-A1 (DE)
Inventor: HOMM KARL GEORG DIPL ING
IPC: B25B27/10
Filed: 1991-09-10
Abstract: The pressed tool (10) has two holding parts (26, 28), which can be moved towards one another and on which pressing jaws (44, 46) are displaceably mounted. Adjacent pressing jaws (44, 46) are at right angles to one another, two pressing jaws (44) being mounted on one holding part (26) and two further pressing jaws (46) being mounted on the other holding part (28). The pressing jaws (44, 46) of both holding parts (26, 28) can be displaced along an axis which runs at an angle of about 45 DEG  to the direction of motion of at least one of the two holding parts (26, 28). Before the pressing operation, the pressing jaws (44, 46) are spaced apart and are moved towards one another, with the holding parts (26, 28) approaching one another, during the pressing operation until they assume their final pressing position. Due to the displaceable mounting of the pressing jaws (44, 46) on the holding parts (26, 28) and the arrangement of all the pressing jaws (44, 46) in a manner rotated by about 45 DEG  relative to the direction of motion of at least one holding part (28), the jaws are guided centrically during the pressing operation, with the result that they move radially towards the pressed article (49) to be pressed. <IMAGE>
Patent DE-4132565-A1 (DE)
Title: Downstream plasma etching with microwave excitation - involves using gas pressure levels, so eliminating local dependence of etching rates for mfg. integrated semiconductor circuits
Inventor: STEINHARDT HEINZ DIPL ING
IPC: H01L21/3213
Filed: 1991-09-30
Abstract: Isotropic downstream plasma etching with microwave involves use of excitation, the working pressure level of the etching gas in the etching installation. This pressure level is set to a value within a range below 13 Pa, in particular, within a range spanning roughly from 0.13-4 Pa, enabling etching to take place at local etching rates which are independent of the immediate surroundings (the presence of absence of surfaces covered with lacquer, in particular). Pref. the working pressure level is set within a range from 1.0-1.5 Pa in particular at approximately 1.3 Pa. USE/ADVANTAGE - Useful in the semiconductor circuit industry. Its use eliminates the problem of local dependence of etching rates. Thus it simplifies the mfg process and improves the quality of the circuits produced.
Patent DE-4133420-A1 (DE)
Inventor: HOFFMANN PETER DR
IPC: C08F2/06
Filed: 1991-10-09
Abstract: The present invention concerns an acrylate copolymerisate containing amino, carboxyl and optionally hydroxyl groups characterized in that an acrylate copolymerisate containing an amino group and optionally a carboxyl group is produced A) by radical solution polymerisation with the use of azo-initiators at temperatures of 80 to 150  DEG C from a1) 1 to 20 % wt. vinyl imidazole and/or dimethyl aminopropyl methacrylamide, a2) 0 to 50 % wt. of one or more monomers containing hydroxyl groups, a3) 0 to 50 % wt. of one or more monomers containing carboxyl groups, and a4) 30 to 85 % wt. of at least one further ethylenically unsaturated copolymerisable monomer, in which the sum of the parts by weight of components a1 to a4 is 100 % wt. and the parts by weight of components a2 and a3 are not both nil at the same time, and B) the acrylate copolymer produced in stage A) is caused to react with carboxylic acid anhydrides, the quantity of carboxylic acid anhydride added being such that the copolymer produced has the desired acid number.
Patent DE-4138331-A1 (DE)
Title: Fitting for tilting and sliding window
Inventor: LAHMANN ERNST
IPC: E05F11/14
Filed: 1991-11-21
Abstract: The fitting is lockable to the frame in the open or shut positions. In the window is an operating rod (15) working in a concealed groove near one edge, on which a control boss (25) acts via a cam on a one piece extension arm (8) pivoting at one end on a slide (23) working in a guide rail, and also hinging at a fixed point on a bearing plate (18).The width of the plate is equal to that of the profiled part of the window(2)frame containing the groove for the rod, and it contains a lengthwise slot through which the boss passes. The latter is mounted directly on a driving rod (17) sliding below the plate. The extension arm on the outside of the plate has a cam face open to the side with two straight control sections including an angle between 90 and 150 deg. The face in contact with the boss in each end position of the arm is parallel to the slot edges.
Patent DE-4139194-A1 (DE)
Title: Impulse RPM sensor esp. for wheel in antilocking regulating system - has pole core and permanent magnet with its magnetic field lines running parallel to longitudinal axis of pole core issuing from sensor housing to pulse transmitter
IPC: G01P1/00
Filed: 1991-11-28
Abstract: A pick-up coil(16) surrounds the pole core(10), at least over a part of its axial length. The pole core(10) and the permanent magnet(14) are arranged coaxially surrounding each other, over at least one section of their axial length. The front endface of the pole core facing the pulse transmitter gear wheel has an axial recess(12), which accepts the permanent magnet(14) leaving at least one radial annular gap(22). The axial recess is a cylindrical bore(12) and the permanent magnet is designed as a solid cylinder. ADVANTAGE - With small external dimensions reliably delivers high signal amplitudes compared to disadvantages of existing sensors e.g. high assembly costs esp. concerning contact and tension relieving of connecting cable.
Patent DE-4142495-A1 (DE)
Title: Using battery powered drill propeller as vehicle drive - allowing propeller to be used either as tool or vehicle drive by attaching propeller to vehicle by quick-action fastener.
Inventor: BRESSLEIN HELMUT
IPC: B25F3/00
Filed: 1991-12-20
Abstract: A battery powered tool, kitchen appliance, garden appliance or the like is coupled to a land or water vehicle by means of a quick action fastener. This acts as a driver which powers the vehicle via a friction roller (8), a gear chain (23,24,25) or directly via a free-running coupling (27). USE/ADVANTAGE - For use as machine tool or drive for land or water vehicle. Efficient driver for, e.g. for  bicycle or boat.
Patent DE-4207161-A1 (DE)
Inventor: SPAHN KARL-HEINZ
IPC: E05B49/04
Filed: 1992-03-06
Abstract: The electronic lock cylinder comprises a housing (1) with a cylinder core (9) which is mounted rotatably therein and which can be blocked in the conventional way by a key (15) via mechanical tumblers (21). The lock cylinder and the key (15) are assigned electronic control circuits (45, 47) which can be inductively coupled via coupling coils (43, 49) for the transmission of coding information. The coupling coil (43) of the lock cylinder is combined, together with all electronic components present within the lock cylinder and with a mounting (51), to form a constructional unit which is attached removably to one end face of the lock cylinder. In this way, the mechanical components and the electronic components of the lock cylinder can be mounted separately from one another, and the electronic components can, if appropriate, be exchanged, without the mechanical part of the lock cylinder having to be exchanged. <IMAGE>
Patent DE-4208058-A1 (DE)
Title: Waveguide to microstrip transition for micro and millimetre range - has planar substrate with microstrip line and coupling slot to waveguide formed on separate planar layer.
Inventor: MENZEL WOLFGANG PROF DR ING
IPC: H01P5/107
Filed: 1992-03-13
Abstract: The waveguide to microstrip transition has a planar substrate (1) with a microstrip line (2). Beneath this line there is a coupling slot (3), at a quarter wavelength from the end (20), in the ground surface (7). On the back surface there is a rectangular waveguide (6) with a second planar substrate (5) having a dipole element (4) on its surface. The boundary contour (30) of the coupling slot is rectangular with sides (140) parallel to the waveguide. High frequency power is coupled between the microstrip, the coupling slot and the dipole in the waveguide. ADVANTAGE - Simple construction.
Patent DE-4208196-A1 (DE)
Title: Filter bag changing tool - has semicircular claws for engaging bag in bag filter without contact from operator
Inventor: KLEWER BERND
IPC: B25B9/00
Filed: 1992-03-14
Abstract: The tool consists of two semicircular facing claws (4) which are joined together. The claws (4) may be immovably joined, in which case one claw is pref. in the form of an incomplete semicircle, or may be relatively movable and joined in a scissor-like manner. Also claimed is use of the above tool for withdrawing unusable filter bags (1) from a bag holder plate (2), in which one claw (4) engages and secures the inner security flap (6) at the upper edge of the filter bag (1). ADVANTAGE - The tool detaches the filter bag without the operator contacting the bag.
Patent DE-4214840-A1 (DE)
Title: Infrared absorption spectroscopy system or White cell for simultaneous analysis of constituents of fluid - provides wall of measurement cell with mirrors and interference filters behind which are located photodiode detectors.
Inventor: STARK HARTMUT
IPC: G01N21/31
Filed: 1992-05-05
Abstract: Light is fed into a measurement cell and interference filters, forming parts of a wall, defining the optical path within the cell each couple out a spectral region from the cell. Detectors measure the intensity of the light coupled out. The part of the light not coupled out propagates further within the cell. Behind each interference filter (15,16,19) is a detector (21-23) sensitive to the corresp. spectral region. USE/ADVANTAGE - For detecting conc. of substance in gas or liquid phase, e.g. in sensing narcotics, exhaled air or toxicity for medical purposes. Compact, simple and requires minimal fluid transition time.
Patent DE-4214895-A1 (DE)
Inventor: SCHOLZ STEFAN DR
IPC: C07C235/06
Filed: 1992-05-07
Abstract: The description relates to a process for producing hydroxyalkane carboxylic acid amides of the general formula (I), in which n is a whole number from 1 to 20 and R1 and R2 are alkyl groups with a maximum of 8 carbon atoms or together represent an alkylene group with 4 to 8 carbon atoms, possibly interrupted by an oxygen or a nitrogen atom, from hydroxyalkane carboxylic acids of the general formula (II): HO-CnH2n-COOH, in which n has the significance given above and amines of the general formula (III), in which R1 and R2 have the significance given above, characterized in that the hydroxylalkane carboxylic acid is heated with reflux in a one-pot reaction with 10 to 30 mol acetyl chloride per mol acid, the superfluous acetyl chloride is distilled off after acetylisation, the residue is heated with reflux with 1.5 to 5 mol thionyl chloride per mol acid, after the formation of acid chloride the thionyl chloride is distilled off, the residue is dissolved in a dialkyl ether with 4 to 8 carbon atoms, the solution obtained is added proportionately to an aqueous solution of the amine cooled to 0 to 10  DEG C and, after amide formation, the acetal group is separated off by treatment with aqueous sodium hydroxide solution at a reaction temperature of 10 to 30  DEG C.
Patent DE-4215810-A1 (DE)
Title: Modified cylinder lock assembly - incorporates cylinder with additional bore accommodating spring-loaded pin
Inventor: RICHTER GERNOT
IPC: E05B27/00
Filed: 1992-05-15
Abstract: The cylinder lock incorporates a housing (11) with a cylindrical bore accommodating the cylinder (13) of the lock. The cylinder incorporate radial bores (36,37,38) accommodating balls (39,40,41) which may engage in an axial groove (42a) in the housing. There are bores (31-35) in the side of the cylinder opposite the balls, accommodating locking pins (20). There is an additional pin (43) in line with the balls, accommodated in a bore (42) and spring-loaded towards the central passage (30) into which the key fits. USE/ADVANTAGE - Cylinder lock with additional safeguard against unwanted movement of cylinder.
Patent DE-4216188-A1 (DE)
Title: Hydraulic bicycle brake actuator - uses multiple cam wheel to compensate for brake block wear
Inventor: HILDEBRAND VOLKER DIPL ING
IPC: B60T11/16
Filed: 1992-05-15
Abstract: The hydraulic bicycle brake has the adjuster provided with a rotationally asymmetrical rotary body in the form of a rotary cam wheel (40). The cam wheel has cams (44) arranged around the periphery having external control surfaces (45) at different distances from the rotary axis of a rotary pin (43), which is arranged on an arm (42) of the brake lever (19). ADVANTAGE - Allows adjustments for brake block wear to be made during long descents without the rider having to stop and dismount.
Patent DE-4217100-A1 (DE)
Title: Mfg. long chimney stack with inner tube in concrete casing - uses through-shaped mould to produce two half-shell sections which are bonded around central tube.
IPC: E04F17/02
Filed: 1992-05-22
Abstract: The precast concrete chimney sections are produced in two halves. The mould (2) has a base (5) shaped to form a semi-circular recess in the cast concrete. Along the semi-circular mould, are two inflatable secondary mould shapes (6), made of a flexible, air-tight material for ventilation grooves in the wall of the semi-circular sections. The concrete is cast with the secondary forms deflated. Inflation assists in compacting the concrete. On hardening, the inflation pressure is increased to assist in the release of the formwork. The chimney is formed by encasing a central tube in insulation, and encasing them in two matching sections of the concrete section which are bonded and bolted together. ADVANTAGE - Allows for longer chimney sections of narrow cross sections to be mfd.
Patent DE-4224228-A1 (DE)
Title: Coupling between propeller and gearbox of wind generator - attaches propeller to main shaft passing through hollow layshaft with ring-gear coupling between shafts
Inventor: VILLGREN VOITTO
IPC: F03D15/00
Filed: 1992-07-22
Abstract: The propeller (11) is attached to the mainshaft (13) passing through a hollow layshaft (16) mounted between the main bearings (14,15). This engages with other geared shafts (21,25,29) to drive the generator (33). A geared coupling (19) links the main and lay shafts, consisting of an outer shell with two gear racks around its inner circumference which engage with the teeth on the outside of annuli attached to the two shafts. The gear profile of the teeth on the mainshaft annulus is tapered so that there can be angular displacement of the mainshaft caused by wind forces without this being transmitted to the rest of the gearbox. ADVANTAGE - Less wear in gearbox because bending moments on mainshaft are not transmitted through.
Patent DE-4238593-A1 (DE)
Inventor: AMMANN ECKHARD MICHAEL
IPC: G06F15/167
Filed: 1992-11-16
Abstract: A multi-processor computer system is described that consists of at least two processors equipped with storage means. Each of the processors is assigned at least one private storage area (10) in the storage means. Furthermore, at least one common storage area (16) is provided in the sotrage means, to which a portion (13) of the private storage area (10) is assigned. Through this storage means arrangement, it is possible, using appropriate commands, to transfer messages between different processors via common storage areas. The management of the private and common storage areas is accomplished using tables, whereby the use of help tables simplifies locating information required for carrying out specific commands.
Patent DE-4244420-A1 (DE)
Title: Portable liq. crystal display projector for TV pictures - provides choice of screens for installation in or beyond holder hinged at edge of carrying casing
Inventor: PARK HONG CHUL
IPC: G09F19/18
Filed: 1992-12-29
Abstract: To deploy the projection screen (13) in its holder (17c) after rotation of its cover (30) about a hinge (20), a catch (24) is released from a groove in the outer casing (10). The support (23) of a mirror-holder (18) is seated into another groove (22). Light (y) from a lamp is reflected (x) from the LCD mirror (16) to the projection lens (11) and after reflection from a fixed mirror (14) is redirected by the movable mirror (15) to the screen. For forward projection a separate screen is placed in front of the holder (17c). ADVANTAGE - Comfortably portable device with large screen suitable for either forward or back projection.