baber/WOPTO huggingface dataset:
Patent DE-4000587-A1 (DE)
Title: Electronic counter - uses passive outputs of flip=flops instead of negation of active output for second input to each AND=gate of main circuit
Inventor: MERKLE PAUL
IPC: H03K23/50
Filed: 1990-01-10
Abstract: A device for counting up to eight pulses on alternate lines (d, e) consists of a main circuit (1) with eight simple flip-flops (131) and 14 AND gates (132, 134), and a control circuit including one flip-flop (136), four AND gates (137) and two NOT gates (138). Four outputs from the main circuit are OR-gated (135) into the control circuit (2). The second input to each AND gate (134) on the output side is taken (c) from the preceding flip-flop (131). ADVANTAGE - Circuit is simplified by use of output from adjacent flip-flop instead of negation circuit.
Patent DE-4000820-A1 (DE)
Inventor: NITSCHKE WERNER DIPL PHYS
IPC: H02H3/087
Filed: 1990-01-13
Abstract: A circuit arrangement for switching an electrical consumer on and off, in particular for cyclic operation of an electric motor, has a controllable switch element the control connection of which is connected to a drive circuit and through which the consumer current flows. The circuit arrangement also has a detector circuit which, in the event of a fault, switches off the consumer if a limit value of the consumer current is exceeded. To detect short-circuit faults, the control connection (collector of T1) or a signal corresponding to the control connection signal and a connection (7) of the switch element (5) leading to the consumer are each connected via a diode (D1, D2) to the input (33) of a driver (27) which, in the event of a fault, actuates a switch element (3) that breaks the consumer current circuit.
Patent DE-4004292-A1 (DE)
Title: Saw-blade for sawing granite - has pivoted teeth which can rotate through small angle
Inventor: PELLIZZARI LIVIANO
IPC: B28D1/12
Filed: 1990-02-13
Abstract: The saw-blade for sawing granite or similar material, has the blade body made from two flat bars (2) with spacers placed between them and fastened together with rivets. The lower row of spacers (4) form bearings for the individual teeth (3) which can rotate through a small angle. The rotation of each tooth (3) is limited by stops fitted between the blade bars and between adjacent teeth. Each tooth (3) has two cutting inserts which are inclined to  the tooth centre-line at an angle. When the blade moves in one direction, the tooth (3) rotates through an angle so that one cutting edge is aligned with the workpiece. When the blade moves in the opposite direction the other cutting edge is aligned with the workpiece. USE - Sawing of granite.
Patent DE-4020294-A1 (DE)
Title: Electrical switch for computer or HI=FI system - provides time delays between outputs by clock-driven shift register
Inventor: FRITSCH HEINZ
IPC: H02J3/14
Filed: 1990-06-26
Abstract: The electrical switching system is used to provide sequential on and off switching of a number of outputs that are used to operate different equipment modules, such as may be found in a computer or high-fi system. The unit is operated by a single switch (1) and the different outputs are generated with delays set by a potentiometer (7). The main connection unit has sockets (5) for connection to the modules. Internally the unit has a shift register to provide the sequential values. This is driven by an adjustable frequency clock signal. ADVANTAGE - Avoids overload by sequential switching of coupled loads.
Patent DE-4025291-A1 (DE)
Title: Water- and moisture-proof seams prodn. in sewn fabric rainwear, etc. - by placing sealant-filled tube between parts to be sewn and allowing sealant to crosslink as it flows out of needle holes
Inventor: MORE ANTON DR
IPC: B29C65/72
Filed: 1990-08-09
Abstract: Prodn. involves placing a plastic or rubber moulding (I) (opt. reinforced with metal foil) filled with a sealing cpd. (II) between the parts to be sewn and crosslinking the sealant (II) which flows out of the holes pierced  in the moulding during the sewing process. USE/ADVANTAGE -  Process is useful in the prodn. of watertightrainwear, rucksacks, baggage, etc.  and prevents ingress of moisture through the holes made by sewing the seams. The main fabric is pref. e.g. polyethylene film-coated HDPE woven fabric, polyester fabric laminated with polyethylene, polypropylene coated with polyethylene film, rubber film, rubberised linen texture, rubberised polyester fabric, 2 layers of polyethylene film with Al foil interlayer, etc.; pref. (I) is a tube of polyethylene, polypropylene, PVC or polyester film, and (II) is a 1-component RTV silicone.
Patent DE-4027412-A1 (DE)
Title: Table with two superimposed panels -  has top panel which can be folded out from lower panel to increase size, with two=part base frame
Inventor: KLINGLER HELMUT
IPC: A47B1/03
Filed: 1990-08-30
Abstract: The table with two superimposed panels has the top panel (E) hinged to the opposite-facing edges or surfaces.  The hinge forms one axle (A) for both panels (A,E). The base-frame is in two parts (B,C) each consisting of two legs with frame-parts.  The two separate base frame parts are movably joined by a vertical middle axle (A). One of the base frame parts (B,C) is fixed to the bottom table-top panel (D), and the other base frame part is movable (a) by means of the middle axle (A).  The top table-top panel (E) can be folded out by 180 deg. to increase the size of the table. USE/ADVANTAGE - The tabletop can be doubled in area by folding out the top panel from the bottom panel. Dwg.No.1/6)
Patent DE-4028443-A1 (DE)
Inventor: PISCHKE REINER DIPL ING
IPC: F02F1/24
Filed: 1990-09-07
Abstract: The invention concerns a method of operating an internal-combustion engine, in particular a vehicle engine, in which air is fed to the combustion chambers through an induction manifold in which different induction-pipe lengths and/or volumes for resonance-mode or pulse-mode supercharging can be included, a switchover unit monitoring operation and initiating corrective measures in the event of an out-of-adjustment condition occurring.
Patent DE-4028785-A1 (DE)
Title: Two=stage hydraulic shock absorber for motor vehicle - has higher damping force during end part of piston stroke
Inventor: PERES LASZLO
IPC: F16F9/48
Filed: 1990-09-11
Abstract: The hydraulic shock absorber for a motor vehicle has a main cylinder (3) in which a main piston (12) operates. An auxiliary piston (15) extends upwards from the main piston and when the main piston (12) reaches the upper part of its stroke, the auxiliary piston (15) enters the auxiliary cylinder (16). The flow of hydraulic fluid to the upper part of the main cylinder is restricted causing a rise in pressure in the lower part of the cylinder. This rise in pressure opens the valve (19) of the auxiliary piston to allow fluid to flow to the upper part of the cylinder but maintaining a higher clamping force on the main piston. USE/ADVANTAGE - Shock absorber with higher damping force over end part of its stroke.
Patent DE-4028908-A1 (DE)
Title: Dishwasher incorporating sprays above and below crockery basket -  draws water supply for intermediate level spray from centre of upper spray lifted on to pipe
Inventor: ASSMANN WALTER
IPC: A47L15/23
Filed: 1990-09-12
Abstract: A basket (2) for cups and glasses is inserted in the plane of a central spray (5), between an upper spray (4) in the plane of a drawer (3) and a lower spray (6) near the floor. The upper spray (4) rests on the outer ring (12) of a tubular joint (13) screwed to the pipe (10), leaving an annular gap (14) above the discharge nozzle (8) which feeds water to the central spray (5) when the upper (4) is lifted (15,16) to the joint (13). ADVANTAGE - Arrangement of sprays makes for ease of assembly and low leakage without obstruction of flows of water.
Patent DE-4029154-A1 (DE)
Title: Connection with elastically movable snap hooks - incorporates hooks in pairs on baseplate, and includes bridge-pieces and cavity
Inventor: DUDEK FRANK DIPL ING
IPC: F16B21/08
Filed: 1990-09-14
Abstract: The connection has elastically and transversely movable snap hooks (3,4) which are joined in pairs by a base-plate (5) at their base only. The snap hooks (3,4) lead, on each side of the base-plate (5) into bridge pieces (12,13) for a tong-shaped tool to grip. The snap hook arrangements (3,12,4,13) are more rigid than the base plate (5) which forms part of a bridge (8) running into a base-plate (9) above a cavity (8). USE/ADVANTAGE - The connection possesses the necessary strength and can be removed from its base plate.
Patent DE-4032078-A1 (DE)
Inventor: SANDAU HARTMUT DIPL ING
IPC: F15B13/01
Filed: 1990-10-10
Abstract: The control device described for a hydraulic piston/cylinder unit comprises a check valve (10) in which a valve-obturation body (40; 40A; 40B) acts in conjunction with a valve seat (41) forming an integral part of the housing. Fitted in the valve-obturation body is a pre-control element (72; 72A; 72B) which acts in conjunction with a valve seat (73; 73A; 73B), also located in the valve-obturation body, and chock bores (63, 64; 118, 119; 63B, 64B). The compressive forces acting on the pre-control element are balanced out so that this element can be operated by a proportional-action magnet (13).
Patent DE-4033162-A1 (DE)
Title: Locking device for the core in a die casting machine - having electro-rheological fluid operating piston motor which can be solidified by applying voltage across two electrode
Inventor: SCHULZ MANFRED
IPC: B22D17/24
Filed: 1990-10-16
Abstract: Locking device for a core used in a pressure die casting machine consists of a piston motor (24) connected to a pressure source (34), which supplies an electro-rheological hydraulic fluid to the chamber (43) of the motor. This pressure forces the piston and the connected core (11) towards the left and when in the correct position the electrodes (49,50) are activated to cause the fluid to solidify and thereby fix the  position of the core. The pressure means (37) on the other side of the piston enables the piston to move to the right when the fluid in the chamber (35) is returned to a non-solidified form. USE/--ADVANTAGE - Metal and plastic die casting/injection moulding. The solidified fluid prevents the core from being deflected and it can only be moved by switching off the power to the electrodes and returning the fluid to a non-solidified
Patent DE-4033918-A1 (DE)
Title: Propeller for ship for inland navigation - has two or more blade sets mounted one behind other
Inventor: LOIDL WALTER
IPC: B63H1/14
Filed: 1990-10-25
Abstract: The propeller for a ship for operating in a shallow water has two or more blade sets mounted on behind the other. This arrangement of blades enables a high thrust to be provided by the propeller. The rear blades lie in the downstream field, formed by the surfaces of the front blades, without causing the blades to stall. This feature enables the rear blades to have a greater pitch angle than is usual in ship`s propellers. A better steamlined flow of water over the blades is achieved with a consequent reduction or elimination of cavitation. USE - Propellers for ships operating in shallow water.
Patent DE-4034551-A1 (DE)
Title: Specimen application arrangement for cataphoretic analysis - uses applicators in cyclically moved holders without developing contamination and at low cost
Inventor: SUZUKI HIDEO
IPC: G01N35/00
Filed: 1990-10-30
Abstract: The cataphoretic analysis arrangement contains specimen applicators (1), each of which adsorbs a sample and transfers it to a carrier (3).  An extension arrangement (4) carrying the applicators brings them successively to a defined position in which they are acquired by a holder (5). The holder is transferred to a sample receiving container (2) where the sample is absorbed, to a position in which the sample is transferred to the carrier, to an applicator recovery container (8) and finally to the original position. USE/ADVANTAGE - The specimen application arrangement uses applicators without developing contamination and at reduced cost.
Patent DE-4035929-A1 (DE)
Title: Warp knitting machine - has lighter weight needle bar to increase speed
Inventor: VOGEL HEINER DIPL ING
IPC: D04B27/06
Filed: 1990-11-12
Abstract: A needlebar for warp knitting machine has cover sections for access to needles. The needles are held in two combs, at the top and bottom of the needle shaft end, with a space between each shaft in that gap. Pref., the needle protrudes from the end of the needlebar, and is held in place by cover sections which bolt down over the shaft end of the needles. The shaft has a recess at the bottom, which fits into the comb, and a similar comb is held at the top of needlebar but without a slot in the shaft. The bottom end of the shaft is also shaped to a point.  Along the gap between the two combs, the needlebar is left open to reduce weight. The combs are held in slots and are constructed to retain the shafts of the needles, which have the ability to flex in the gap, with subsequently fewer breakages. Additionally, the cover may have a recess cut along the section above the needleshafts, and for the length of the side, which reduces weight further. ADVANTAGE - The gap provides a lighter weight needle bar, which can be made to move faster. The reduced restriction between the needle shaft results in fewer needle breakages.
Patent DE-4038517-A1 (DE)
Title: Sailboard fin-mounting adaptor - has recess of cross=section matching fin shank and fits in bottom recess
Inventor: ZANDER WOLF-DIETRICH
IPC: B63B35/79
Filed: 1990-12-04
Abstract: The adaptor is for mounting a fin with shank of smaller cross-section in a wider and deeper box-shaped recess in the underside of a sailboard. The adaptor (4) has a recess (5), whose cross-section at right angles to the travel direction matches that of the shank (6).  The external contour (8) of the adaptor can be trapezium-shaped, matching that of the box-shaped recess. USE/ADVANTAGE - Easy interchangeability of sailboard fins of different dimensions.
Patent DE-4041208-A1 (DE)
Title: Quick-change tool holder for taps - provides axial constraint by wedging ball set and selectively by locking ball set if groove is present
Inventor: BAEDER SIEGFRIED
IPC: B23B31/107
Filed: 1990-12-21
Abstract: One end of the toolholder fits into a chuck or adaptor and the other acceptor the parallel shank (12) of a tap (11). The toolholder is designed to accept with equal facility taps with or without an axial locking groove (24). The tool shank passes through a sleeve (15) which fits into the cylindrical housing (13) and acts as a cage for three locking balls (23). Three wedging balls (21) provide a clamping force on the tool shank preventing the tool from pulling our of the toolholder.If the tool has no axial locking groove the sleeve (15) is rotated to allow the locking balls (23) to remain clear of the shank in three radial pockets (28). If however the shank has a locking groove the sleeve is rotated to bring the balls into the groove. ADVANTAGE - Equally suitable for tools with or without locking groove. Simple, compact design. Quick and convenient to use.
Patent DE-4101255-A1 (DE)
Title: Absorber chamber for drying air - in hollow conductor e.g. of radar or radio equipment
Inventor: LINSS WOLFGANG DIPL ING
IPC: H01P1/30
Filed: 1991-01-17
Abstract: In a device for drying air contained in a hollow conductor which is closed by a back wall, the novelty is that a chamber (3) filled with water absorbent material is located beyond the back wall (2), the back wall being permeable w.r.t. water but impermeable w.r.t. the absorbent material. The absorbent material pref. consists of a porous tufa-, sponge- or foam-like silica gel, zeolite or active carbon. The back wall (2) may consist of a metal mesh, a metal wall with through openings (4) or a wall of porous tufa-, sponge- or foam-like material. An electromagnetic radiation absorber wedge (6) is pref. located in the conductor (1) in front of the back wall. The conductor (1) may have a rectangular cross-section with one of its side walls forming a removable lid (5), the absorber chamber (3) pref. having a separate lid portion to facilitate absorbent material replacement. USE/ADVANTAGE - The device is useful in radar equipment and radio systems. It has a simple design, is inexpensive and space saving, can be used with small diameter conductors, provides permanent air drying and uses inexpensive absorbents.
Patent DE-4110548-A1 (DE)
Title: Competitive binding assay for herbicides - by competition with quinone aldehyde for photo-system II receptors
Inventor: JOCKERS RALF DIPL BIOL
IPC: G01N33/18
Filed: 1991-03-30
Abstract: Detection of herbicides that interfere with the photosystem II of plants is effected by a competitive binding assay in which a quinone aldehyde (I) and the herbicide compete for binding to photosystem II receptors. The source of photosystem II receptors may be (a) reaction centres isolated from photosynthetic bacteria, e.g. Rhodobacter sphaeroides, or (b) thyalkoid prepns. isolated from green plants, e.g. spinach. (I) is a quinone nonanal, e.g. 9-(5,6-dimethoxy-3-methyl- 1,4-benzoquinon-2-yl)nonanal, 9-(1,4-benzoquinon-2-yl)nonanal or 9-(1,4-naphthoquinon-2-yl)nonanal or 9-(3-methyl-1,4-naphthoquinon-2-yl)nonanal. USE - The assay may be used, e.g., to detect contamination of drinking water by herbicides such as triazines or phenylureas.
Patent DE-4111290-A1 (DE)
Title: Electric pendulum clock with rotating pendulum rod - connected to torsion spring and released by movement regulator of clockwork
Inventor: RADZUN BRUNO
IPC: G04C3/00
Filed: 1991-04-08
Abstract: The pendulum rod (50) is at least partially rotatable about its length axis (A) and released by the movement regulator of the clockwork. The pendulum rod is rotatable relative to a torsion spring (40) to which it is coupled. One wt. (64,65) is installed below the pendumlum rod and in the form of a wt. plate suspended below the base plate (60). The wt.(s) is or are rotatable relative to the pendulum rod and fixed to the latter or the spring. Each wt. plate is fitted to a rod-like end-piece (56) of the spindle (51) of the pendulum which rotatably holds the end-piece. USE/ADVANTAGE - Drive is suitable for small, mantelpiece, pendulum clock and is protected against damage.
Patent DE-4116861-A1 (DE)
Inventor: FREY ALFRED
IPC: A01K1/015
Filed: 1991-05-23
Abstract: In granules, which are used, for example, as animal litter or as an oil absorbent, the granules 1 comprise cellulose fibres 3 and are provided with a layer 5 consisting of a preferably hydraulic binder which may be gypsum, but usually cement or CaCo3. The cellulose fibres may be paper fibres obtained from wastepaper or paper slurry, to which silicate has been added as a means of controlling the absorption and the weight. To avoid dusting of the binder layer 5, the granules may be coated with an adhesive layer 7, for example fish glue.
Patent DE-4117072-A1 (DE)
Title: Differential absorption appts. using light wave radar - contains laser light source with simultaneous stable radiation in two longitudinal modes and rapid tuning, and achieves heterodyne reception by mode superimposition
Inventor: ALBRECHT HANNES DR
IPC: G01S17/10
Filed: 1991-05-22
Abstract: The differential absorption appts. contains a light source in the form of a laser performing stable radiation simultaneously in two longitudinal modes. The laser wavelength can be rapidly tuned. Heterodyne reception can be achieved by superimposing one longitudinal mode of the retroreflected light on the other longitudinal mode of the part of the light pulse which has not yet been sent. The modulation caused by beating resulting from the interaction of both modes can be used for direct sensitive reception. USE/ADVANTAGE - Enables rapid wavelength tuning, broad tuning range and heterodyne reception without local oscillator.
Patent DE-4119406-A1 (DE)
Title: Transmission photometer with holder for specimen cuvette - has LED illuminating cuvette, sensor photodiode and signal amplification, conversion and display system
Inventor: KLOCKE BJOERN
IPC: G01N21/27
Filed: 1991-06-08
Abstract: The specimen cuvette (K) is illuminated by a LED (PL1,PL2). The light is fed to a sensor photodiode (PS) after attenuation and/or modification by the contents of the cuvette. The photodiode signal is amplified and converted for display in analogue and/or logarithmic and/or digital form. The LED is supplied with a frequency higher than a background light frequenc via a current defining resistor (R1,R2). The photosensor signal is filtered by a high pass filter (BP) with d.c. suppression whose pass band contains the supply frequency. The filtered signal is fed to a dual-path rectifier (GL) followed by a low pass filter (TP) whose output is displayed. ADVANTAGE - Simple transmitted light photometer of low wt., low current consumption. Easy to use yet sufficiently accurate.
Patent DE-4120265-A1 (DE)
Title: Data card without contacts - contains battery and interruptable clock circuit supplying signal to CPU
Inventor: MATSUBARA TOSHIYUKI
IPC: G06F1/32
Filed: 1991-06-19
Abstract: A data card has a CPU (11) connected to a bus (18). Also connected to the bus are ROM, RAM and I/O units (12, 13, 15). The I/O unit connects to a modem (16) coupled to an anetenna (17). The CPU operates with dock signals from a generator (19) anmd this can be interrupted (20) by signals generated externally. When this takes place the power drain on the on-board battery (14) is considerably reduced. the clock circuit is based upon a resonator. ADVANTAGE - Clock interruption extends life of battery.
Patent DE-4123080-A1 (DE)
Title: Aq. paints for plastic substrate, esp. motor body parts - contg. polyester-poly:ol, polyether-poly:ol, amino resin, hydroxyl-contg. poly:alkoxylated polyacrylate resin and acid hardening catalyst
Inventor: BUDDE JOERG
IPC: C08J7/043
Filed: 1991-07-12
Abstract: A process for painting plastic substrates with aq. paints (I) contg. (A) polyester-polyol(s) with OH no. at least 250, acid no. below 5 and Mn 500-1100, (B) polyether-polyol(s) with Mn 350-550 obtd. by reaction of 1 mol. polyol contg. at least 3 OH gps. with 4-8 mols. propylene oxide (PO) and/or ethylene oxide (EO), (C) amino resin(s), (D) OH gp.-contg. polyacrylate resin(s) with OH no. 20-200, stabilised with 4-20wt.% poly-EO and/or poly-PO and/or poly-EO-PO gps., and with particle size 40-1000nm, and (E) acid hardening catalyst(s). Plastic substrate is polyamide (PA) or polyurethane (PU), and (I) are used as 2-component paints; (A) is obtd. by esterification of polycarboxylic acids with polyols, using reactants contg. not more than 15 mol.% cycloaliphatic or aromatic gps.. USE/ADVANTAGE - (I) are useful for painting or priming plastic substrates, esp. PA or PU (claimed). The invention provides water-based paints with improved adhesion to plastic substrates and increased resistance to moisture, esp. for painting plastic motor body part
Patent DE-4131120-A1 (DE)
Title: Beet harvester with conveyor -  uses conveyor that can be tilted out for cleaning or servicing
Inventor: WESTPHAL HERBERT
IPC: A01D33/10
Filed: 1991-09-19
Abstract: The single- or multi-row beet harvester has a driven conveyor. This feeds beet to a screen and conveyor unit. The beet conveyor (13) is coupled on the one side via articulations with a fixed axis, and on the other side via a releasable adjusting device with the frame of the harvester (3). After releasing the adjusting device, the beet conveyor (13) can be tilted about the articulation out of the working position into a position for cleaning and servicing. USE/ADVANTAGE - The beet harvester mechanism allows better access to the screen and conveyor elements and to the beet conveyor for cleaning and servicing.