baber/WOPTO huggingface dataset:
Patent DE-3726199-A1 (DE)
Title: Apparatus for converting potential energy into useful mechanical work
Inventor: MAURITSCH GERHARD
IPC: F03B17/04
Filed: 1987-08-06
Abstract: A torque is to be produced on a vertically rotating drive which is immersed in water, for example a chain drive, by means of bodies fastened on the drive in that the bodies on one side of the drive always have a smaller volume than the bodies on the opposite side of the drive so that the bodies can act on the drive with the force of the difference in their buoyancies. In order to give the bodies the ability to perform the volume changes necessary for this, they are composed of a gas-filled cylinder which is closed on one side and a piston which is freely movable in the longitudinal direction therein and has a large compressive force brought about by its weight force. These bodies are brought into such a position in the water surface region that the piston is pressed vertically into the cylinder from above and the total volume of the body is thus reduced and that, in the depth of the water, the piston is pressed vertically downwards out of the cylinder and thus increases the total volume of the body. Conversion of potential energy.
Patent DE-3732593-A1 (DE)
Title: Drive system for a mine hoisting system
Inventor: THOENNES GERD DIPL ING
IPC: B66B1/28
Filed: 1987-09-28
Abstract: In this drive system for a mine hoisting system, a driving pulley (5) is connected to two three-phase a.c. motors (15, 18) via a common gearbox (12). The drive pulley (5) propels via two deflection pulleys (4, 6) two hoisting cages (3, 7) connected together by a rope (1) along a vertical path. The two deflection pulleys are mounted over load cells (30, 31). The three-phase a.c. motors (15, 18) can be operated in a frequency- and voltage-controlled manner via their own rectifiers (19, 23) with a master open-loop and closed-loop control device (26). When smaller loads are being hoisted and in emergency operation, only one motor is employed, while both motors are operated when larger loads are hoisted. The differential pressure force (@D) between the pressure forces (D1, D2) registered by the load cells (30, 31) serves as the measure of the current load. The double design of the hoist makes the system largely fail-safe. <IMAGE>
Patent DE-3733313-A1 (DE)
Title: Process for the polymerisation of polar compounds (III)
Inventor: ECK HERBERT DIPL CHEM DR
IPC: C08F4/72
Filed: 1987-10-02
Abstract: The invention relates to a process for the polymerisation of polar compounds which contain a C = C double bond in the  alpha -position to a carbonyl or nitrile group, especially acrylic acid derivatives. The polymerisation is initiated by means of initiators, optionally together with nucleophilic or electrophilic catalysts, and is carried out at temperatures in the range from -100@C to +100@C. The initiators or catalysts used are organometallic compounds, which can be, for example, metal organosilylamides containing a monovalent to tetravalent metal atom or organosilylphosphines.
Patent DE-3735433-A1 (DE)
Title: Displacement machine for compressible media
Inventor: EMMENTHAL KLAUS-DIETER DR ING
IPC: F01C19/00
Filed: 1987-10-20
Abstract: A displacement machine for compressible media is described, with at least one displacement chamber arranged in a stationary housing and designed in the manner of a spirally running slot, and with a band-like or tongue-like displacement body assigned to each displacement chamber and likewise of spiral-shaped design. The displacement body (2) is in this case held in such a manner on a disc-shaped rotor, which can be driven eccentrically in relation to the housing (1), that each of its external-wall points executes during operation a circular movement delimited by the circumferential walls of the displacement chamber. The curvature of the displacement body (2) is dimensioned in such a manner in relation to that of the displacement chamber that the displacement body virtually touches the radially internal and external circumferential walls of the displacement chamber on in each case at least one sealing line which advances continuously during operation, a sheet-metal strip (3) with a purposefully applied roughness being held, for sealing the radial gaps formed between the stationary housing and the displacement body, on one of the surfaces, in each case to be sealed in relation to one another, of the components. In order to produce an arrangement which is as simple and as easy to manufacture as possible, the sheet-metal strip (3) is to have scale-shaped punching (4) made outwards and the sheet-metal strip is to consist of an aluminium foil stuck on the component. <IMAGE>
Patent DE-3741919-A1 (DE)
Title: DC permanent-magnet motor having armature reaction and brush displacement with respect to the armature rotation direction
Inventor: SURIANO JOHN R
IPC: H02K23/04
Filed: 1987-12-10
Abstract: A DC permanent-magnet motor (10) has a conventional wound armature (15) and a housing (11) with a flux ring (12) and one or more magnetic field poles (13) which, or each of which, contains a permanent magnet (30). On the front end (32) of the permanent magnet, seen with respect to the rotation direction of the armature, each field pole furthermore contains a section (31) made of high-permeability, non-magnetic material which extends the armature air gap (22) at the front end of the permanent magnet and is magnetised, during the motor operation, by the armature reaction flux. In addition, the commutation axis of the motor (A) is readjusted such that the armature field (A) is displaced or rotated from the neutral alignment, with respect to the armature rotation direction. This results in improved motor efficiency and an increase in the maximum permissible torque. <IMAGE>
Patent DE-3800197-A1 (DE)
Title: Method for surface machining of substrate plates
Inventor: LOESER WERNER DR
IPC: B24B37/00
Filed: 1988-01-07
Abstract: The substrate plates, after facing, are finished with lapping discs, with the addition of a polishing fluid composed of an aqueous solution with aluminium oxide powder and organic additives, the lapping discs being provided with a covering made from an elastic material.
Patent DE-3810052-A1 (DE)
Title: Cooling arrangement
Inventor: EMMENTHAL KLAUS-DIETER DR
IPC: F04C29/04
Filed: 1988-03-25
Abstract: A description is given of a cooling arrangement of a machine, for example a scroll-type compressor (1), which has a driving mass (6) that is supported on an eccentric collar (5) of an input shaft (3) via a bearing (10) and can be driven eccentrically at high speeds. In order to be able to reduce the lubricating oil requirement of this bearing (10) without prejudicing its service life, the proposal is to provide a heat tube (25), this being held in the input shaft (3), projecting coaxially to the eccentric collar (5) and being held in an axial bore (26) made in the input shaft (3) from the input side. The heat tube (25) can furthermore expediently be in heat-transmitting contact with lubricant return conduits (19) which carry the lubricant fed to the bearing (10) to an outlet (22). <IMAGE>
Patent DE-3811002-A1 (DE)
Title: Solenoid injection valve for internal combustion engines
Inventor: SCHAUER WALTER
IPC: F02M37/20
Filed: 1988-03-31
Abstract: Injection valves of the said type are known and have ring channels for the fuel feed and discharge arranged in the housing part, the machining of which is expensive and time-consuming. In a new injection valve the ring pistons are formed in that the ring channels are formed from the housing wall, three cylindrical shoulders of the filter part and a cylinder ring shoulder of an insulating cap inserted between the first cylinder ring shoulder and the housing wall. The new injection valve has an extremely smooth housing. The ring channels are now "built", as a result of which economic advantages are to be expected. <IMAGE>
Patent DE-3811320-A1 (DE)
Inventor: MAURER WALTER
IPC: B05D5/00
Filed: 1988-04-02
Abstract: In a process for producing a protective and/or decorative coating, which can be removed if necessary, on a substrate with a smooth surface, (A) the substrate is thoroughly cleaned; (B) a coating composition containing organic solvents and at least one cellulose derivative as a binder is applied to the cleaned substrate, the coating having a dry film thickness of 40 to 85  mu m, preferably 50 to 70  mu m; (C) when the coating applied in step (B) is sufficiently dry, a second coating composition containing organic solvents is applied, the total quantity of all the organic solvents present in the second coating material at the processing viscosity being equal to at least 80 % by weight of (cyclo)aliphatic and/or aromatic hydrocarbons; and (D) the second coating composition is dried.
Patent DE-3814480-A1 (DE)
Title: Device for damping movement sequences
Inventor: KUEHLE WALTER
IPC: F16F9/46
Filed: 1988-04-29
Abstract: In the case of a shock absorber, in order to adjust the damping force separately for the tension direction and compression direction, said shock absorber is equipped with in each case one restrictor valve for basic damping and additional damping. In the case of the device according to the invention, the adjustable parts of the two restrictor valves are constructed in the form of sleeves (66, 67, 68, 69). This results in a particularly space-saving design, which can be integrated directly into a piston (5) in the shock absorber. The device is used for damping relative movements of two masses, especially in the case of the sprung wheel suspension systems of vehicles. <IMAGE>
Patent DE-3824178-A1 (DE)
Title: Sound-insulating load-bearing device
Inventor: LEMKE GERD DIPL ING
IPC: E04F17/04
Filed: 1988-07-16
Abstract: The invention relates to a sound-insulating load-bearing device for cladding buildings and industrial installations.
Patent DE-3824983-A1 (DE)
Title: Stretchable insulating textile material
Inventor: CAREY JUN PATRICK H
IPC: D04H1/54
Filed: 1988-07-22
Abstract: An elastically stretchable textile material with enhanced thermal insulating properties is produced by applying a thin coherent layer of microfibres to at least one surface of an elastically stretchable carrier web, such as a textile composed of crimped bicomponent fibres which are joined to one another at fibre intersection points.
Patent DE-3831054-A1 (DE)
Title: Method for the digital coding of information of one, two or more channels and/or reducing the frequency of the alternating coding current or currents and transmission thereof
Inventor: DIRR JOSEF DIPL ING
IPC: H04N7/24
Filed: 1988-09-12
Abstract: The frequency-division or time-division multiplex multiple utilisation of current paths has previously been known. However, these methods require considerable expenditure and need a wide bandwidth. In the present invention, this is avoided by the fact that the code elements of the various channels, which are arranged synchronously or quasi synchronously, are ordered in parallel and are all combined to form one codeword and are transmitted.
Patent DE-3838012-A1 (DE)
Title: Workpiece carrier
Inventor: MAIER DIETER DIPL ING
IPC: G11B7/24
Filed: 1988-11-09
Abstract: A description is given of a workpiece carrier for clamping workpieces at the outer contour with at least three clamping elements which can be adjusted by means of an actuating device for clamping workpieces of different diameter. The workpiece carrier according to the invention is distinguished by the combination of the following features:   - each clamping element has a supporting finger adjustable in the radial direction and a clamping finger attached to the supporting finger, - each supporting finger has a horizontal bearing portion, on which the workpiece lies, and a vertical bearing portion which lies against the lateral edge of the workpiece, - the clamping finger lies on the upper side of the workpiece and is prestressed by a prestressing device in the direction of the horizontal bearing portion of the supporting finger.
Patent DE-3903105-A1 (DE)
Inventor: NEUMANN MANFRED DR
IPC: C07B35/06
Filed: 1989-02-02
Abstract: Dehalogenation agents based on alkali metal alcoholates are sensitive to oxidation and hydrolysis. On cooling to room temperature they become solid or deposit solid constituents. 
<??>Dehalogenation agents which are liquid at room temperature, have good storage stability and are less sensitive to oxidation and hydrolysis are obtained by dissolving the alkali metal alcoholates in polyethers and by adding hydrocarbon oils. 
<??>Dehalogenation of used oils.
Patent DE-3908187-A1 (DE)
Inventor: JURCA MARIUS-CHRISTIAN DIPL IN
IPC: B23K26/04
Filed: 1989-03-14
Abstract: PCT No. PCT/EP90/00412 Sec. 371 Date Aug. 8, 1991 Sec. 102(e) Date Aug. 8, 1991 PCT Filed Mar. 14, 1990 PCT Pub. No. WO90/10520 PCT Pub. Date Sep. 20, 1990.Method for on-line quality assurance when processing materials with laser energy by means of electro-optical detection of the near-infrared radiation of the material which is thrown out of the "key-hole" during the material processing operation with laser, thus detecting the dimension of hollows (pores, holes) which have arisen in the workpiece. The detection of the thermal radiation of the thrown out material is effected in a wavelength of 800 nm up to approximately 1300 nm, preferably with simultaneous detection of the ultraviolet radiation of the plasma could in a preferred wavelength of approx. 200 nm up to 450 nm. Finally, there is also a description of the processing procedure for near-infrared signals.
Patent DE-3910392-A1 (DE)
Inventor: EHMIG GERHARD
IPC: B25C1/16
Filed: 1989-03-31
Abstract: The cartridge feed strip (1) consists of a ribbon (2) and of receptacles (3), projecting away from one flat side of said ribbon, for propulsion charges (5). The hollow space (3a) of the receptacles (3) merges into a recess (2a) which opens outwardly towards the other flat side of the ribbon (2). On the open side, the recess (2a) is surrounded by an annular gap (2b). A cut-out (2c) for receiving an igniting composition (6) and which can be closed by a base part (7) is provided eccentrically between the annular gap (2b) and recess (2a). 
<IMAGE>
Patent DE-3914452-A1 (DE)
Title: Filling sacks with granules - involves device with expanding flaps ensuring max. opening cross=section
Inventor: DOERING WERNER DIPL ING
IPC: B65B39/04
Filed: 1989-05-02
Abstract: The device for filling sacks with granular materials has a sack holder with two pairs (2) of clamping jaws for holding the sack near its opening edge (1a) and its two side edges (1b).  Two convex curved expanding flaps (3,4) are mounted to swivel relative to each other about axles (5,6) parallel to the clamping plane (7) of the clamping jaws. Each of the two expanding flaps (3,4) has a convex curved  centre area (3a,4a) and either side adjoining flat parallel side walls (3b,4b). Air exhaust pipes (8) are mounted on the outsides of the two outer walls of the partially overlapping side walls (3b,4b). The exhaust channels can be mounted on the side walls  of the same expanding flap. The channels pref have a square or trapeziodal cross section. USE/ADVANTAGE - The sack opening is spread out for full use of its cross-section.
Patent DE-3914875-A1 (DE)
Inventor: OUDEJANS JOHANNES CORNELIS
IPC: C07C209/48
Filed: 1989-05-05
Abstract: The invention provides a process for the catalytic hydrogenation of C12 to C22 nitrile to amine employing a certain nickel catalyst upon a carrier containing magnesium oxide and silica which contains from 60 to 90% (w.w.) of nickel calculated on the catalyst composition, which has a molar ratio of silica to nickel in the catalyst between 0.10 and 0.30, a molar ratio of magnesium to nickel in the catalyst between 0.25 and 0.05, a mean pore radius of the catalyst between 1.5 and 4.0 nanometers, a pore volume between 0.20 and 0.80 ml/g, an active nickel surface area of the catalyst between 90 and 150 m<2>/g of nickel and a BET total surface between 100 and 400 m<2>/g catalyst.
Patent DE-3917330-A1 (DE)
Title: Torsional vibration balancer system - has flywheel mass radially inside it and hub and shaft, has rubber spring with fibres and threads inserted
Inventor: EBERHARD GUENTER DIPL ING DR
IPC: F16F15/14
Filed: 1989-05-27
Abstract: The torsional vibration balancer (10) consists of a radially external, annular flywheel mass (11) between which and a hub (12) fixed to the shaft (18) is a rubber spring (13). The rubber spring (13) incorporates insertion pieces (14) affecting its isotropy, in the form of radially and axially pointing fibres (14), and radially and axially pointing theads. The rubber spring radially pointing threads are connected to the radially external flywheel mass (11) and to the radially inner hub (12). USE/ADVANTAGE - The torsional vibration balancer possesses increased radial rigidity and avoids imbalance by incorporating non-rubber insertions.
Patent DE-3917623-A1 (DE)
Title: Method for compressing harvested material - pressure plate and counter-pressure plate to form silage bales
Inventor: BAHLMANN HANS-HERMANN
IPC: A01F15/10
Filed: 1989-05-31
Abstract: In a method of making silage blocks, the silage is harvested comminuted and portioned into the press channel by one stroke of the press plate (1) per portion against a controlled counter-pressure created by a counter-press-plate (2). The portions (5) collected between the press-plate (1) and the counter-press-plate (2) are pressed into one complete bale (7), so that the material harvested achieves the greatest possible relaxation of the expansion pressure over time. USE/ADVANTAGE - A maximum end pressure is achieved in every compression, and the bales have a height much greater than the stroke of the press-plate.
Patent DE-3919725-A1 (DE)
Inventor: STREUER PETER
IPC: H01M2/30
Filed: 1989-06-16
Abstract: In a starter battery, connecting cables are connected by means of one or, if required, several pole screws (7) which are inserted into a metal plate (5) and are gripped underneath the same by nuts (3) which are supported in a captive manner and protected against rotation in depressions of the cover (1). By means of its lateral extension, the metal plate, as a continuation of the cell pole (4), holds the connecting poles away from any possible leakage of electrolyte from the cell duct and provides no assistance to the same becoming unsealed, in that it is fixed in position by slight embedding into the covering material or by flanking ribs which are integrally formed on the cover, and cannot deflect in response to torques resulting from the screw. Precisely fitting slots (9), which also prevent potential incorrect connections when cabling is carried out by machines, are formed by depressions in the cover surface for the cable grips (10) which are to be held. <IMAGE>
Patent DE-3929943-A1 (DE)
Title: Etch-free non-polluting circuit board mfr. - comprises using metal layer-free substrate e.g. copper
Inventor: SCHUCHT HORST
IPC: H05K3/16
Filed: 1989-09-08
Abstract: An etch-free non-polluting process for circuit board mfr.  involves reproduction and electroplating steps starting with a substrate material which is free of a metal (e.g. copper) layer. ADVANTAGE - The process avoids the waste water pollution, atmos. pollution and underetching problems of processes involving etching, gives reduced reject rates and allows use of photo-mask materials with better edge sharpness and working properties.
Patent DE-3936539-A1 (DE)
Title: Finish turning tool with rotating tool-bit - has solid disc tool-bit clamped in collet at front end of shaft mounted in rolling bearings
Inventor: JANIS MILAN DIPL ING
IPC: B23B27/12
Filed: 1989-11-02
Abstract: The toolbit (1) is in the form of a solid disc of for example ceramic material, which is gripped on its periphery by a collet with a taper fitting into the conically mouthed bore of a tapered roller-bearing (3) at the front end of the turning tool body (5). The shaft (2) is supported in the tapered roller bearing at the toolbit end and a preloaded pair of ball thrust bearings (4) at the rear end. The collet is tightened onto the toolbit by tensioning the shaft between the front and rear bearings by means of the nut (7). If stepwise rotational adjustment of the tool is required a locking screw (10) may be used. Alternatively the tool may be left free to rotate or be motor driven. USE/ADVANTAGE- Finish turning of large surfaces. Toolbit does not require central clamping hole and can be accurately re-ground.
Patent DE-3938515-A1 (DE)
Title: Stereoscopic video picture displaying appts. - has two monitors for half images generated via computer small enough to be realised as head-mounted device
Inventor: STEIN RAINER
IPC: H04N13/00
Filed: 1989-11-20
Abstract: In a construction of the form of headphones, spectacles or a helmet, two monitors are integrated, which project before the eyes of the user two half pictures of a spatial object via a lens and mirror/prism system using the method of stereoscopic double pictures. A variation positions two video cameras on the user's eye baseline providing him with a real-time stereoscopic picture of his surroundings via the monitors, with parts of the picture information excised by Blue-Box techniques and replaced with other, possibly computer-generated picture information. USE/ADVANTAGE - Small, light and portable stereoscopic t.v. set.
Patent DE-3941532-A1 (DE)
Title: Whirlpool bath with two pumps - is controlled by use of electromagnetic valve assembly
IPC: A61H33/02
Filed: 1989-12-17
Abstract: A whirlpool bath (28) has a pump (12) which receives water from the bath outlet (26) and delivers it to the nozzle (2). A second pump (12a) returns excess water to the pump inlet through the valve (23). Air can be vented from the system through a valve (25). The valve (23) can be adjusted to produce the required jet from the nozzle (2) or it can be clsoed completely in order to shut down the whirlpool bath. This valve (23) is electromagnetically actuated and the operation of the bath can be controlled by a computer program. USE - Whirlpool baths.
Patent DE-4001183-A1 (DE)
Title: Jaw bone implant consisting of three parts - has parts designed so that they can only be assembled in correct angular relationship
Inventor: LEIBINGER FRANZ
IPC: A61C8/00
Filed: 1990-01-17
Abstract: The jawbone implant consits of a post (10) with a screw thread (10) by which it is screwed into the jaw bone. This has spigot (22) which fits into a recess (23) in a distance piece (12). The distance piece (12) has a projection (28) which engages a slot in the post (10) to prevent relative angular movement between the two parts. The support (14) for an artifical tooth is fitted on top of the distance piece. The support (14) has a projection (36) which engages a slot in the distance piece (12). The three parts (10,12,14) are clamped together by a screw (16). USE/ADVANTAGE - The three parts can only be assembled in their correct angular relationship.
Patent DE-4001356-A1 (DE)
Title: Industrial sewing machine - has automatic control of feed teeth to advance top and bottom cloths with different frictional qualities
Inventor: IWATA MASANARI
IPC: D05B27/08
Filed: 1990-01-18
Abstract: A sewing machine has top and bottom cloth advance mechanism feed teeth to sew top and bottom cloth, and is fitted with:  (a) a means to pre-set the separate mechanisms for the feed teeth as regards the amt. and the direction of the top and bottom cloth; and (b) a controller to follow the pre-setting, and a method of altering the settings which have been made on both the advance mechanisms, separately or conjunctively. ADVANTAGE - Sewing machines has pre-set controls for seaming cloths made of different materials and co-efficient of friction. By introducing a means of altering the settings, using established electronic practice, the machine is further automated.