baber/WOPTO huggingface dataset:
Patent DE-3942867-A1 (DE)
Title: Composite membrane for sepn. of gas mixts. - has porous backing, gas-permeable interlayer and perm-selective layer of amphiphilic mols. contg. 1 or 2 7-20C alkyl gps. per polar gp.
Inventor: HAUBS MICHAEL DR
IPC: B32B7/02
Filed: 1989-12-23
Abstract: Composite 3-layered membrane for gas sepn. (I) comprises (A) a porous polymeric backing membrane, (B) a non-porous gas-permeable interlayer and (C) a perm-selective layer 3-100nm thick with a regular arrangement of organic mols. with layer (B) enclosed by (A) and (C), the novelty is that (C) consists of a regular arrangement of amphiphilic mols. (II) with one or two alkyl chains each contg. 7-20C atoms per polar hydrophilic gp. (I) is produced by dissolving a water-insol. amphiphilic cpd. (II) in a volatile organic solvent, spreading the soln. on a water surface, compressing the film obtd. and transferring it as a monomolecular, perm-selective layer onto a substrate consisting of (A) and (B) by the Langmuir-Blodgett technique. Pref. (C) consists of cpds. with mol. not above 2000 pref. not above 1000, or polymeric cpds. wtih mol. wt. above 5000 pref. in at least 2 monomol layers one above the other; layer (C) is applied to layer (B). USE/ADVANTAGE - The method provides a composite membrane with good selectivity and considerably improved permeability (w.r.t. prior-art membranes) which is useful for the sepn. of gas mixts.
Patent DE-4002762-A1 (DE)
Title: Shelf for displaying goods for sale - has semi-circular recesses in shelf rack(s) which receive rotatable discs
Inventor: HALBMANN MANFRED
IPC: A47F5/02
Filed: 1990-01-31
Abstract: Goods for sale are displayed on shelf racks (1a-c); (2a-c; 3a-c) and on a wider lower shelf rack (4). Each upper rack has a region of reduced width (1b,2b,3b). Each narrow rack has two semcircular recesses in its outer edge. The recesses receive circular discs (5-7), each lying in the plane of them respective shelf rack. Each disc can be rotated about a vertical axis either by the customer or by a drive, e.g. an electric motor. In an alternative design a shelf rack may have circular holes in which the rotatable discs are fitted.
Patent DE-4003669-A1 (DE)
Title: Determination of length of electrical motor brushes - using potentiometer sensor provides signal proportional to wear of brushes
Inventor: STAEBLEIN ELMAR
IPC: H01R39/58
Filed: 1990-02-07
Abstract: An electrical disc. motor has contact  brushes (4) located in guides (3) that are positioned radially. A radial contact force is applied by the projecting arm (11) of a pressure element (5).  The element is pivot mounted (13) onto a support arm (2) projecting from the brush holder.  Contact pressure is generated by aa  tension spring linked to hook shaped arm. As brush wear takes place the pressure element moves through an arc and the pivot pin  turns.  Coupled to the pivot pin is a potentiometer that provides a signal proportional to wear. An indicator or alarm ring be operated. ADVANTAGE - Provides  indication  of brush wear in motors.
Patent DE-4008152-A1 (DE)
Title: Electrical or magnetic high pressure valve - has angled operating lever with servo drive
Inventor: ROTT HORST
IPC: F16K31/10
Filed: 1990-03-14
Abstract: The valve has a multi-element construction and moves in a straight bore (4). One end of the valve element is operated by one arm of a bent lever (60) hinged on the end of the valve casting (2), the free end (68) being pushed by a servo drive, e.g. a solenoid drive. The servo drive bolts directly to the fitting flange (78) while the lever is secured inside a removable cover (94). The lever is located on a hinge pin set between the two flanges of the hinge, and with two outer flanges, attached to the cover, preventing the pin from moving. The valve has adjustable screw ends (32,43) to preset the characteristics. ADVANTAGE - Simple construction; simple adjustment to cover mfg. tolerances.
Patent DE-4015278-A1 (DE)
IPC: F16B13/00
Filed: 1990-05-12
Abstract: The dowel (10) has ring-segment clamping shells (10.1, 10.2, 10.3), which are pressed apart from one another by clamping members (10.4) when the clamping bolt (42) is tightened with the aid of the hexagonal nuts (43.1, 43.2). A plastic tube (40), which is plugged over the ring-section clamping shells, prevents the ends of the ring-segment clamping shells folding out from one another if they do not find any support in the cavities (11.41, 11.42). <IMAGE>
Patent DE-4016890-A1 (DE)
Title: Fixture for pedestal of printed circuit connector part - utilises spike with collared sleeve around pin driven into aligned holes in pedestal and circuit board
Inventor: SCHLOSSER MICHAEL
IPC: H01R13/73
Filed: 1990-05-25
Abstract: The pedestal (2) is secured between a connector part and the printed circuit board (3) by means of a spike-shaped coupling element (6) which is fitted into holes (11, 12) in the respective members. This element has a single-ended spread sleeve (8) with a supporting collar (7) and a radial slot (16). A spread pin (10) is driven axially into a central channel (9) until its polygonal (esp. hexagonal) head (30) comes up against the collar (7) of the sleeve (8). ADVANTAGE - Fixture can be manipulated very easily and purposefully from one side only, for secure retention of pedestal.
Patent DE-4017002-A1 (DE)
Title: Monochromatic X=radiation source
Inventor: HARDING GEOFFREY DR
IPC: H01J35/02
Filed: 1990-05-26
Abstract: A monochromatic x-radiation source has, between the target and the anode, an electron screen (35) contg. an element of high atomic number. Pref. the screen (35) and the target (36) pref. contain the same high atomic number element and pref. consist of Ta.
Patent DE-4018159-A1 (DE)
Title: Transmission changing rotary to linear movement - consists of control wheel with threaded grip and control mechanism
Inventor: HOERMANN MICHAEL DIPL ING
IPC: E05F15/603
Filed: 1990-06-06
Abstract: The gear for converting a rotary into a straight movement is pref. attached to a drive motor unit. It is esp. for doors, and incorporates a rotor drive and a straight motion-transmission piece (5) to which is attached a control wheel (25) by means of a threaded grip (26, 27). The control wheel (25) has on it at least one control for engaging with at least one end, and possibly intermediate end switch. USE/ADVANTAGE - The threaded connection converts a straight movement to a rotary mounted section without distortion.
Patent DE-4032693-A1 (DE)
Title: Adjustable coffee table top - on base frame, is divided into four equal parts, with intermediate panel resting on guide pin, and base frame
Inventor: NAGEL ERWIN DIPL ING
IPC: A47B13/08
Filed: 1990-10-15
Abstract: The adjustable coffee-table has a table top (1,2) supported by a base-frame (8) and which is divided into four equal parts (1,1-1,4) each which can be pulled out and turned. A round or square intermediate panel (3,4) rests on a guide-pin mounted in a hole in the panels (3,4). When the separate table-top parts (1,1-1,4) are pulled out, the guide-pin runs exactly in the guide-groove in each base plate. The base frame (8) for each table top part (1,1-1,4) is angled and slopes at an acute angle by means of a locking bolt and screws. USE/ADVANTAGE - The size of the table-top can be increased by easy manipulation.
Patent DE-4032885-A1 (DE)
Inventor: BAUMGARTNER HANS
IPC: F16D65/16
Filed: 1990-10-17
Abstract: The disck brake for vehicles has a brake yoke (2) with a tensioning device on one side. The tensioning device comprises a rotary lever (4) borne so as to rotate about a spindle crossing the axis of the brake disc at right angles and fitted in the brake yoke (2) which, by means of an eccentric can act upon a cross-piece (6), the ends of which are connected to a brake shoe (10) via push-rods. The eccentric takes the form of a bearing device (15) formed as a rotary bearing parallel to the spindle which connects the rotary lever (4) to the cross-piece (6) solely to rotate eccentrically to the spindle. The bearing may take the form of a roller bearing (21) or a self-lubricating plain bearing, it may be arranged in opposite, semicylindrical recesses (13 and 14) in the rotary lever (4) and the cross-piece (6), whereby one of its parts may be firmly secured to the rotary lever (4) or the cross-piece (6). The disc brake can thus be tensioned with low friction, wear and hysteresis.
Patent DE-4033494-A1 (DE)
Title: Controlling yield point of torque or rotation angle of screws - by measuring and evaluating torque-rotation angle curve with individual screw inclination
Inventor: WIESMEIER ALBERT DR
IPC: B25B23/14
Filed: 1990-10-20
Abstract: The determination of the application angle (phiA) of the bolt or screw to be tightened is used as a start value for monitoring in a tightening operation, independent of the build-up rate of the torque (M). The application angle (phiA) establishes the zero point for the absolute angle of rotation, independently of the jointing operation and the friction coefficient, via which the bolt is tightened. The application angle is determined by the backward extrapolation in a linear section of the torque/angle of rotation curve. With a tightening operation, the inclination angle is taken into account. The effective initial stressing force is determined or monitored independently of the frictional coefficient in connection with the tightening operation, by a single or many time small loosening or retightening. USE/ADVANTAGE - Control of yield point of torque or angle of rotation of screws or bolts. Quick and precise without need for additional sensors.
Patent DE-4035519-A1 (DE)
Title: Brush head for large manipulators for cleaning complicated shapes - has two motor-driven facing brush rollers adjustable at various angles
Inventor: BENCKERT HARTMUT DR
IPC: A46B7/10
Filed: 1990-11-08
Abstract: The brush head for large manipulators has a support which can be coupled to a boom and/or multi-joint of the manipulator.  Two motor-driven brush rollers (48), which have in the rotating state a frusto-conical sleeve face, face each other at their ends having the larger diameter. These brush rollers are adjustable relative to each other through the inclusion of a variable angle between their axes of rotation.  At least one of the brush rollers is displaceable in translatory motion in the direction of its axis of rotation. The brush rollers can be mounte 9n F   WjC F clamped on the support on one side. ADVANTAGE - Better and faster cleaning of large surface areas of complicated designs.
Patent DE-4038138-A1 (DE)
Title: Purifying di:methyl terephthalate by recrystallisation from methanol - washing moist crystals, drying by melting and evapn. of methanol and recycling wash liq. and part of mother liquor
Inventor: BACHMANN WILFRIED DIPL ING
IPC: C07C69/82
Filed: 1990-11-30
Abstract: In purifying dimethyl terephthalate (DMT) by recrystallisation from methanol soln., the mother liquor, contg. the impurities, is sepd. by filtration and the moist crystals are washed, and dried by melting and evapm. of the methanol. The wash liq.  and parts of the sepd. mother liquor are recycled to the recrystallisation. The crystals are washed with methanol. The washed crystals are recrystallised from methanol in a 2nd stage, the mother liquor is sepd., and one part is fed to the 2nd stage recrystallisation, and the other part is used as solvent in the 1st stage recrystallisation, and as wash liq. in the 1st stage. The crystals from the 2nd stage recrystallisation are washed with methanol, after sepn. of the mother liquor, and the wash liq. is fed to the 2nd stage recrystallisation. The crystals from the 1st stage recrystallisation are washed with mother liquor sepd. after the 2nd recrystallisation. ADVANTAGE - The amt. of methanol used is about halved, and the quality of the DMT is at least as good.
Patent DE-4038887-A1 (DE)
Inventor: KREUTER JOERG PROF DR
IPC: A61K9/51
Filed: 1990-12-06
Abstract: The invention concerns a method of producing cross-linked collagen particles with diameters in the micrometer and nanometer range. A dispersion or solution of collagen in water, with emulsifiers added, is finely mixed with an organic phase, which is not miscible with water, to form a water/organic emulsion. A cross-linking agent is then added and the collagen cross-linked at the droplet boundary surface, the collagen particles thus produced being isolated by separating off the organic phase and washing.
Patent DE-4039034-A1 (DE)
Title: Displaying information on very large scale display - selectively switching light sources to illuminate windows of large building
Inventor: HEILAND BERND DIPL ING DR
IPC: G09F19/00
Filed: 1990-12-07
Abstract: The method involves using the front of a large building, having windows (21,22) arranged in a regular pattern, to produce a display by varying the brightness of display elements (2). The display elements may be single windows, groups of windows. The respective light sources of the display elements are selectively switched by remote control. The lighting installed in the rooms of the building may be used as the light sources, and pref. have delay-free switch-on. The remote control effects the switching of the light sources via networked control signals. 3x5 elements may be used for low-resolution display, e.g. of time, date, temp. etc., and the illuminable areas between windows are used for increased resolution. USE - E.g. for advertising.
Patent DE-4040498-A1 (DE)
Title: Commercial masking for dodging when printing photographic negative or diapositive - scanning original and producing black=and=white negative mask of appropriate resolution to cover sensitivity grade of photographic paper used
Inventor: ZAHN WOLFGANG DR
IPC: G03B27/72
Filed: 1990-12-18
Abstract: The resolution of the negative mask produced lies between 0.1 and 2 sets of lines per mm. The original is printed with the mask to cover the full range of the photographic paper. Each frame of a negative film strip (1) is secured at a first stage (2) pointwise by a light source (3), lens (4) and slit shutter (5). The light emerging from the film is collimated again by another lens (6) and separated into its colour components through a dichroitic mirror (7). Correspondingly sensitised measuring cells (R, G, B) register the basic prim. colour densities for storing in an image memory (8) with a resolution of approx. 500 to 1,000 pixels. An appropriate mask for the frame is generated in a selection logic (9). The density value for the mask is stored in another image memory (10). The resultant exposure density is calculated from both stored values and stored in a further image memory (11). AVANTAGE - Since mask covers whole area, dodged areas not detectable on final print. Quality of latter is not affected by sliding motion arising from continuous photo-finishing process as customary in commercial automatic machines.
Patent DE-4040870-A1 (DE)
Inventor: KARBACH BERNHARD
IPC: G01N29/04
Filed: 1990-12-20
Abstract: In the whole-product ultrasonic inspection system proposed, the test-head mount is mounted on a height-adjustable test bench (22), the system further including a test-piece manipulator (46) mounted on the same test bench (22). The axes (66, 26) of the manipulator (46) and the test piece (28) held in the test-head mount (along the line of inspection) are parallel to each other. The system is fitted, between the test bench (22) and either the manipulator (46) or the test-head mount, with a guideway (36) running at right angles to the axis (66) of the manipulator (46) and the axis (26) of the test piece (28) in the test-head mount. The dimensions of the guideway are such that the manipulator (46) can be displaced relative to the test-head mount between a test position in which the axes (66, 26) of the manipulator (46) and the test piece (28) held in the test-head mount coincidence and a servicing position in which the manipulator (46) does not obstruct the passage of test pieces (28) through the test-head mount.
Patent DE-4102473-A1 (DE)
Inventor: HAUSDORF JOERG
IPC: B32B27/18
Filed: 1991-01-29
Abstract: Nonwoven fabrics or papers coated with the chemical crosslinking product of a) the 50%-strength aqueous dispersion of a thermally crosslinkable copolymer of acrylonitrile and styrene having a glass transition temperature of +33 DEG C and of b) the 60%-strength aqueous methylol-group-containing solution of an aminoplastic or phenolic plastic precondensate in combination with a halogen-free flame-protection system can be used as thermally stable substrates for copper foils of flexible circuit boards.
Patent DE-4104085-A1 (DE)
Inventor: PIOCH LOTHAR
IPC: C11D17/06
Filed: 1991-02-11
Abstract: The granular additive disclosed, which may be used to pretreat hard water or employed together with washing and cleaning agents, contains 40-75 % by wt. of the sodium salts of at least one homopolymer or copolymer of methacrylic acid, 1-35 % by wt. of a finely crystalline synthetic zeolite containing bound water, 2-20 % by wt. of sodium sulphate (calculated as the anhydrous salt) and 1-15 % by wt. of water. The granulate initially produced preferably by spray drying is compacted under the action of pressure to give a granulate with a bulk density between 500 and 900 g/l, without affecting the free-running or storage characteristics of the granulate.
Patent DE-4114812-A1 (DE)
Title: Mine clearance collector for loose sandy soil beaches and desert - involves grid extending out of sand with left and right lateral guide parts guiding mines into transport basket
Inventor: ROGOZENSKI NICO
IPC: F41H11/16
Filed: 1991-05-07
Abstract: The mine transport basket comprises a floor and three side walls (10) of strong round iron, which have adequate intermediate space to allow sand to fall through. The basket is open at the top, and provided with transport rings (6). The clearance collector stands on runners (4) which prevent deeper penetration into the sandy soil during the clearance operation. By virtue of a very storng frame (11), the clearance collector has extraordinary stability. It can be emptied, in that the floor with the rings (8) can be drawn backwards. It provides a clearance width of 3.5 m., with the runners, which are 3 m apart, only in contact with cleared soil. The floor freedom of the transport backet of 0.5 m guarantees that sand getting into the basket with the mines can be cleared without a problem. USE/ADVANTAGE - To obviate the involvement of personnel in the handling of mines during clearance operations is sandy locations.
Patent DE-4116164-A1 (DE)
Inventor: SPEICH FRANCISCO
IPC: D03C3/06
Filed: 1991-05-17
Abstract: A shedding device for a textile machine contains two lifting blades (41) which move to and fro antagonistically, two traction elements which can be engaged and disengaged with the lifting blades (41), an insertion device (31) with a wedge-shaped basic shape in the path of the traction elements, whose sloping surfaces are opposite the traction elements and which swivels the traction elements with respect to the lifting blade in the lower shed position, and two guide devices (43, 44) which guide the traction elements (42) relative to the insertion device in a defined air gap layer not greater than 1 mm at the edge of the base of the electromagnet. As a result of this defined position and of the insertion and withdrawal of the traction elements from the lower shed position, the power of the electromagnets and of the shedding machine can generally be markedly reduced with a reliable switching function at high frequency up to 2500 min<-1>.
Patent DE-4120134-A1 (DE)
Title: Transfer support securing different materials together - is of fibre with coverings glued or welded to materials
Inventor: ZEPF HANS-PETER DIPL PHYS
IPC: B32B27/12
Filed: 1991-06-19
Abstract: The transfer support is for welding or gluing together any two materials in a pair, partic. the uppers and soles of sports shoes. Each material can be glued or welded to other items of the same material. The melting temp. of the material with the higher m.pt. is within the temp. range in which that with the lower m.pt. remains stable. A fibre support has a covering layer which can be glued or welded to one of the component materials on one side, and another on the other side which can be secured similarly, or by chemical or mechanical bonding, to that of the other component. Glass-, Aramide or C fibres can be used, and polyurethane for the covering. ADVANTAGE - Materials which cannot be welded or glued together can be secured to each other.
Patent DE-4121120-A1 (DE)
Title: Ceramic slip heater - has an immersion heater which also stirs slip mass in its container with variable flow control
Inventor: BIRK HARALD DIPL ING
IPC: B28B17/02
Filed: 1991-06-26
Abstract: To heat ceramic slip and similar materials, to bring them to the required temp. for glazing tiles, etc. a moving immersion heater is used within the slip in its container. Pref. the immersion heater also acts as a stirrer to prevent pptn. of heavier slip components to the base of the container and maintain a temp. difference throughout the slip of +/- 1 deg.C. The motor which operates the immersion heater/stirrer has a variable rotary speed, and the heating medium has a variable flow control through the immersion heater. ADVANTAGE - The method stirs and heats the slip to keep its temp. within +/- 0.5 deg.C and give an even heat throughout.
Patent DE-4122495-A1 (DE)
Title: Screw spindle pump - has drive gear and pump spindle formed as single component, with drive spindle having shaft and gear section meshing with further gear on driven spindle
Inventor: NONNENMACHER GERHARD DIPL ING
IPC: F04C2/16
Filed: 1991-07-06
Abstract: The screw gear pump has a drive spindle and an operating spindle (10) driven in conjunction, both located inside a housing. The drive spindle has a shaft section and a gear section which meshes with a further gear (19) on the driven spindle. The gear and shaft sections on both spindles are formed as single components. The axial pressure forces on both spindles are equalised via pressure fluid channels (20, 21). ADVANTAGE - Cost-effective high speed pump, low flow speeds at pump internals.
Patent DE-4124296-A1 (DE)
Title: Mass flow measurement arrangement with vibration generator
Inventor: LAM SON DIPL ING
IPC: G01F1/84
Filed: 1991-07-22
Abstract: The Coriolis mass flow measurement device has a channel inlet, a straight line carrying the measurement fluid, one vibration generator acting on the line and one measurement transducer.  The transducer measures the Coriolis forces and/or the Coriolis vibrations associated with them. The vibration generator (2) engages the flow line (1) via a pendulum arm (4).
Patent DE-4132567-A1 (DE)
Title: Shaft support system with delayed rotation
Inventor: OJIMA JUJI
IPC: A45C13/00
Filed: 1991-09-30
Abstract: The rotary coupling of the type used to hinge one part of an audio cassette to another has a built-in torsion element to provide a closing moment. The unit has a central tube (31) and two end caps (33). One of the caps has a projecting lug (39b) that can engage against stops (39a) formed on the cylinder.     The cylinder has a centre slot (34) through which the torsion element passes. When relative rotation takes place, the torsion element is loaded during the arc before the stops are engaged.
Patent DE-4133649-A1 (DE)
Title: Automatically setting frictional moment of hub bearing, pref. skew roller bearing, - involves continuously turning hub whilst tightening adjustment nut according to measured drive torque
Inventor: KOLB HOLGER DIPL ING
IPC: F16C25/06
Filed: 1991-10-11
Abstract: A method of setting the frictional moment of a bearing of a hub (1) involves continuously rotating the hub whilst controlling the frictional moment by tightening an adjustment nut (3) according to the measured drive torque. A torque transducer driven at constant revolution rate rotates with the hub from which it can be detached by an axial displacement. The adjustment nut (3), axle (2) or axle arm is fixed wrt a frame. USE/ADVANTAGE - Pref. for setting the frictional bearing moment of a hub attached to an axle or axle arm by a skew roller bearing. Accurate effective adjustment is automatically achieved.