baber/WOPTO huggingface dataset:
Patent DE-3935594-A1 (DE)
Title: Dc motor RPM measuring and evaluating circuitry - contains partial rotation measurer connected to motor controller via evaluation circuit ascertaining motor drive displacement in vehicle
Inventor: SCHONART EDGAR
IPC: H02K23/26
Filed: 1989-10-26
Abstract: The circuitry measures and evaluates a d.c motor's revolution rate or the displacement of a motor drive with control electronics connected via at least two control outputs to a switching device.  A measurement device for partial rotations of the motor is connected to the switching device. The meausrement device is connected to the controller via an evaluation circuit.  The d.c motor (G) contains adefined number of core windings (A) which have different inductances in a defined sequence. USE/ADVANTAGE - Simple, low-cost.  Each partial movement of the d.c motor about a predetermined number of armature windings is registered and counted.
Patent DE-3943245-A1 (DE)
Inventor: LAUFER HELMUT DIPL ING
IPC: F02D41/38
Filed: 1989-12-29
Abstract: A fuel injection pump has a pump piston (13) driven by a shaft (15) via a cam drive (14) in at least one axial stroke and thereby generates fuel injection pressure in a pump working chamber (16) and a magnetic valve (30) blocking or clearing the way between the pump working chamber (16) and a relieving channel (26), whereby the pump piston (13) starts feeding with the relieving channel (26) blocked and stops when said channel (26) is cleared. To prevent piston chatter on the cam drive (14), the magnetic valve (30) is controlled towards the end of the feed process so that a residual pressure below the injection pressure is built up in the pump working chamber (16) until the top dead centre has been reached.
Patent DE-4003921-A1 (DE)
Title: Double sided tube for two different contents - has two separate chambers each with screw top
Inventor: SIROTZKI RICHARD
IPC: B65D35/22
Filed: 1990-02-09
Abstract: The double-sided tube consists of two separate Chambers (1,2).  Each tube is closed by its own screw closure-piece (3,4) so that each can contain a different substance. ADVANTAGE - The main part has two compartments and can be filled with substances in daily use close together, such as mayonnaise at one side, and ketchup at the other end.
Patent DE-4003992-A1 (DE)
Title: Appts. arm for control panel or control unit - has internal cable channel provided by open tubular steel arm sections
Inventor: HASEKE HORST
IPC: H02G3/04
Filed: 1990-02-09
Abstract: The appts. arm comprises a tubular steel profile incorporating a cable channel, for housing the electrical leads for the control panel or control unit supported by the arm. An intermediate linkage (7) is used to couple two successive carrier arm sections (8,9) extending horizontally, with an end piece for supporting the panel or control unit fitted to the free end of the second arm section (9), e.g. at right angles. The carrier arm profile has an open top face and is fitted with respective cover plates (14,15) for each arm section (8,9), resting on transverse members (21) welded across the top edges of the tubular profile, together with linkage plates (22) for the intermediate linkage (7).
Patent DE-4005693-A1 (DE)
Title: Cleaning and cutting device - has discharge and water inlet jets to produce high-pressure water and abrasive mixture
Inventor: DOMANN HANNES
IPC: B24C5/04
Filed: 1990-02-23
Abstract: The cleaning and cutting device consists of a mixing chamber (12) wherein a high pressure jet is mixed with an abrasive material.  The discharge jet axis is lined up with the water inlet axis and the discharge jet (21) can slide parallel to its axis (24) in the mixing chamber. The discharge jet (21) is inside a boring in a liner (28) in the mixing chamber (12), and is secured in a number of sealing rings (32,33) which are set in grooves (34,35). USE/ADVANTAGE - The discharge jet axis and water inlet jet axis can be rapidly lined up without difficulty.
Patent DE-4006532-A1 (DE)
Title: Vehicle load platform construction - incorporates sidewall flaps hinging upwards and downwards and coupled by rod and lever
Inventor: ZIEGLER PETER
IPC: B60J5/04
Filed: 1990-03-02
Abstract: The vehicle load platform (1) is particularly for a lorry or trailer, and has an opening sidewall comprising first and second flaps hinging downwards and upwards respectively. The first flap (6) swings on an axis (8) roughly at floor level (4), and the send one (7) upwards on an overhead axis. The first flap is attached at a point clear of its hinge axis to a pull rod (10) resistant to thrust load, and whose other end is attached to the end of one arm (11) of a double-armed lever (12). The other lever end (13) engages with the second flap at a point.clear of its top edge lver 1s o¦se from he pane of the second flap when shut towards the vehicle centre-line (M). USE/ADVANTAGE - Vehicle load platform allows positive coupling of flaps without restricting access by forklift truck.
Patent DE-4010073-A1 (DE)
Inventor: KOSCHOREK RALF
IPC: G01C9/00
Filed: 1990-03-29
Abstract: A device for uphill driving detection is proposed, particularly for utility vehicles such as lorries or buses. The device contains at least one sensor (1) for the axle load on the rear axle and/or the front axle and a device (4) for measuring the vehicle acceleration relative to the roadway. The signals of the sensor (1) and of the device (4) are supplied to electronics (2). From these signals, the electronics recognise whether the vehicle is on an uphill slope or a downhill slope or on a level. The signal thus generated can be used further in various electronic systems, for example in a drawbar force control system. 
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Patent DE-4010943-A1 (DE)
Title: Anodic protection for systems carrying neutral or weakly acid water - positively polarises systems with anodic current density of 0.5 to 1.0 micro amps per square metre
Inventor: FISCHER ROLAND DR RER NAT
IPC: C23F13/00
Filed: 1990-04-05
Abstract: Process claimed for preventing the appearance of rust colouring, formation of incrustations and caking on electrically conducting and non-conducting objects carrying neutral or weakly acid iron-contg. water, has the objects positively polarised by the application of an an anodic current of density I/A = 0.5-1.0 micro amps per sq. metre. The applied voltage lies in the region of less than 42V. The negative pole of a direct voltage source supply is earthed at a suitable position. It forms a closed current circuit such that through an increase of the surface potential, the Coulomb component in respect of the free adsorption enthalpy of the water's components is so increased in value that it exceeds the chemical and solvation enthalpy in the positive direction according to the formula:  "The variation in total adsorption enthalpy in the standard condition equals its Coulomb component plus its chemical component less its desolvation component" and becomes the dominant part; in this case the adsorption changes to an involuntary reaction where the total adsorption  enthalpy in the standard condition is greater than zero. USE/ADVANTAGE - The system is typically used in stationary and dynamic systems such as pipelines, pumps, measuring devices and well filters. It avoids the need to introduce substances into the system thereby reducing investment and operational costs.
Patent DE-4011795-A1 (DE)
Title: Integrated MOS quartz oscillator with single crystal connector - gives frequency stability using series-resonance and two=stage amplification
Inventor: SAPOTTA HANS DR
IPC: H03B5/36
Filed: 1990-04-12
Abstract: The integrated quarz oscillator comprises two amplification stages (1, 2), a single connection pin (P) for an external crystal and a feedback capacitor (CG). The series-resonant crystal (Q) acts as source impedance for amplifier stage 1, which contains a single MOS transistor (T1), while stage 2 contains 2 MOS transistors acting as an inverter. The prod. of the 2 stage gains, V1 and V2 respectively, is greater than 1 at the oscillator resonance frequency and elsewhere less than ADVANTAGE - Redn. of circuit complexity and number of pins promotes reliability and compactness. Series resonance mode gives stable oscillator frequency and immunity to mfg. tolerances.
Patent DE-4011996-A1 (DE)
Inventor: JOST MICHAEL
IPC: H01H35/14
Filed: 1990-04-12
Abstract: An acceleration sensor for determining the existence of a constant acceleration is characterized by the combination of the following features: a mass is mounted mobile and has a stop on which it rests when it experiences the constant acceleration; the mass experiences a second acceleration which, irrespective of the corresponding movement, has an absolute value which is constant, diametrically opposed to the constant acceleration to be determined and appreciably smaller than the latter; a position sensor responds to a position of the mass in which the latter is removed from the stop under the action of the second acceleration.
Patent DE-4013108-A1 (DE)
Title: Procedure and device for drying and sterilising - laundry items, medical equipment etc. are treated in chamber supplied with air whose temperature and/or flow rate are varied regularly
Inventor: BALTES HANS
IPC: D06F58/30
Filed: 1990-04-25
Abstract: In a new drying and sterilising procedure, heated atmospheric air is passed through the drying chamber for varying time periods, so that the temperature relationships throughout the chamber remain practically constant during the drying procedure. Alternating periods of high and low air velocities may be used, or the delivery rate of the air supply fan may be throttled in a pre-determined regular pattern of time intervals during the drying process. The time periods during which different air velocities are used are pref. of equal duration. USE/ADVANTAGE - Esp. used in drying and sterilising laundry, fabrics and other items such as medical equipment, scissors, combs, brushes, razors, shoes, bedclothes etc. A more even temp.  distribution is achieved in the drying chamber, leading to a more effective and energy efficient drying and sterilising process.
Patent DE-4016236-A1 (DE)
Title: Immersed body processing - has oscillation applied mechanically to fluid and body to give max. fluid contact at and through workpiece
IPC: B06B1/04
Filed: 1990-05-16
Abstract: To work or treat a body immersed in a medium, such as a wet chemical and/or thermal action on a circuit board, a mechanical oscillating system (4) works on the fluid medium (14) and the immersed body (7) to generate movement and/or flow pulses to intensify the action of the liq. on the surface of the body and through any drillings in it. Pref. the mechanical oscillating system (4) activated by periodical force application to give oscillations in the audio frequency range. The body (7) is passed through the medium (14), which is recirculated at and through the body (7). An electrical field is generated in the medium (14) through an electrical body, and this or the immersed body (7) can be used as an electrode, or at least one mechanical oscillating system (4) acts as an electrode. ADVANTAGE - The method ensures max. contact between the treatment medium and all the surface areas of the immersed body, in a simple and effective operation.
Patent DE-4016779-A1 (DE)
Title: Antitheft steering wheel lock - has torque limiting drive shaft with split construction
Inventor: WITTWER REINHARD
IPC: B60R25/021
Filed: 1990-05-25
Abstract: The steering wheel lock has a lock cylinder rotating in a cylindrical housing and operates on a drive shaft via a cam coupling incorporating a torque limiter.  The drive shaft has one inner section which rotates with the lock cylinder and which is displaced axially, and an outer shell which  couples to the cam drive for the locking bolt. The lock has a safety interlock which prevents the lock from locking until the key is fully withdrawn.  Its construction is such that if force is applied then the torque limiter prevents forcing of the bolt release. ADVANTAGE - Simple, compact design, improved security against forcing.
Patent DE-4030774-A1 (DE)
Title: Producing laminar wood type sheet -  by gluing sides of continuous core of glued wooden strips, applying fabric to each side and pressing in double band press
Inventor: FELDBACHER KURT DIPL ING
IPC: B27N3/00
Filed: 1990-09-28
Abstract: The sheet is produced by applying chips or fibres on both sides of a continuous belt of wooden strips which are glued and pressed together. The assembly is then continuously pressed in double band press to form endless sheet. During the process, a fabric or mesh is first fed to each glued side of the core material before the chips and/or fibres are added, and the complete five-ply assembly is pressed into the final product. The fabric/mesh material is preferably treated first with an isocyanate adhesive before use. ADVANTAGE - Process ensures firm bonding between the centre core material and the covers. It produces sheets with perfectly flat surfaces even if the core material is not flat. The sheets produced can be further improved by surfacing e.g. with fabrics etc. so that chips/fibres will not sink into knot holes, cracks, cuts, etc..
Patent DE-4036919-A1 (DE)
Title: Protective cap for reinforcing rod end - comprises end and neck of polymer concrete enclosing cast plastics sleeve
Inventor: DREIZLER SIEGFRIED
IPC: E04G21/32
Filed: 1990-11-20
Abstract: The cap for the end (44) of a reinforcing rod (42), e.g.  in a concrete pipe, comprises a neck (12) pressed onto the rod end so as to fit firmly, and an end section (14) forming a spacer from the shuttering (48). The neck consists of a plastics sleeve (18) cast into a casing (16) of polymer concrete, while the end section is also of the latter material, and can be radiused. ADVANTAGE - Simple mfr. and fitting, and good function even with rough handling.
Patent DE-4100478-A1 (DE)
Title: Light spectrum measurement system for visible UV and VUV light - comprises spectrograph, optical fibre bundle and detector, and produces rectangular cross=section image for detection by CCD camera
Inventor: ANDRESEN HANS
IPC: G01J3/28
Filed: 1991-01-07
Abstract: Spectrally divided light occurring in the image plane of the spectrograph is fed into the elongated bundle of light conductors which is divided into several parts (1-20) arranged to form a rectangular cross-section and connected to a CCD camera or to a CCD camera with an image amplifier in front of it. A quantum converter is preferably provided for conversion of UV or VUV light entering the surface of the optical fibre bundle into visible light. ADVANTAGE - Large wavelength range, high spectral resolution.
Patent DE-4100994-A1 (DE)
Title: Net-like structure for e.g. filtering casting metal - is woven from heat-resistant e.g. glass-fibre strands covered by dissipative film
Inventor: KITANI SUSUMU
IPC: B01D39/12
Filed: 1991-01-15
Abstract: Net-like material (a) is woven out of heat-resistant warp thread (a2) and weft thread (a1). One kind of these threads consists of simple fibres and the other of double threads (a1). The sieve area ratio is in the region of 30-50%. The thickness of the simple threads and that of the bundles of double threads lie in each case approx. in the region 1.1-1.2mm, and the opening area of a mesh is approx. 2-14 square millimetres. A dissipative film e.g. of 0.005 mm thick polyethylene is applied on each of the two surfaces of the material. USE/ADVANTAGE - Used either in the neighbourhood of the inlet or the riser gate side in a casting mould, the filter so formed provides improved sepn., through-flow rate for molten metal and filtering action. In an example it is woven out of glass fibre containing approx.  99% SiO2, whereby each fibre contains e.g. 2400 woven glass fibres each 9 micrometres thick. The glass fibres are e.g. type '267 Tex' (RTM) (267 g x/km). Two of these fibres can be used as warp fibres, while an individual fibre of the same quality is woven in to produce a net-like material.
Patent DE-4101852-A1 (DE)
Title: Paper-making pick=up section - has blown air directed selectively at the fourdrinier for only the cot web edges to be held by suction as web is detached by a blanket
Inventor: KOTITSCHKE GERHARD
IPC: D21F7/00
Filed: 1991-01-23
Abstract: The suction system (to hold the cut edges of the paper web at the fourdrininer, where the web is picked up by a blanket) has a guide body which forms a wedge-shaped gap together with the surface of the fourdrinier moving away from it. A blower delivers an air stream into the gap in the direction of fourdrinier travel. The blowing slit is structured to be effective only at the edges of the web, so that the body of the web can be detached cleanly from the fourdrinier. Pref. the guide is a convex curved plate against the fourdrinier, or it is a tube. The blowing system has a blowing box where the guide, at the same time, forms one wall of the blower box. The blower slit is formed by an overlap between two adjacent walls of the blower box. ADVANTAGE - The system prevents blockages and build-up at the suction system, and almost eliminates wear between the suction head and the fourdrinier. No material can build up on the surface of the suction guide body towards the fourdrinier, as it is blown away
Patent DE-4109407-A1 (DE)
Title: Precision forging press with hydraulically actuated tool - forges workpiece in single stroke of press
Inventor: LANGSCHWAGER INGO
IPC: B21K1/30
Filed: 1991-03-22
Abstract: A precision forging press is provided with hydraulically actuated tools which enable the forgings to be formed by a single working stroke of the press. The forging die is made in two parts (26a,26b) which are mounted between the lower end of the press ram (27) and the piston (2) of the tool (1). As the ram (27) moves downwards it presses the piston (2) downwards against the spring (25). At the same time the piston drives hydraulic fluid (8) into a chamber (9) underneath a second piston (5) attached to the lower end of a punch (4). The hydraulic pressure drives the punch upwards into the die (26a,26b) to forge the workpiece to the required shape. USE/ADVANTAGE - Precision forging by a single stroke of the forging press.
Patent DE-4111513-A1 (DE)
Title: Fluid contamination measurement - uses reaction chamber with carrier gas, to carry foreign matter to gas sensor
Inventor: FUHRMANN HANS DR
IPC: G01N33/18
Filed: 1991-04-09
Abstract: To measure foreign matter in fluid, especially water, the fluid is brought into contact with a carrier gas in a reaction chamber (23) to bring the foreign matter at least partially into a gas phase. The presence of foreign matter in the gas mixt. is measured by a gas sensor (30) in the reaction chamber (23). The carrier gas is pref. introduced in the base area of the upright reaction chamber (23) where the water flows through. Sintered material (24) with fine pores, is at the base of the reaction chamber (23), and there is an outlet (25) for the water at the lower section of the chamber (23) connected to an outlet channel (26, 27) which follows an upward curve with its highest point below the level of the cover of the chamber (23). A cap (28) at the cover of the chamber (23) has a measurement channel (29) leading to a gas sensor (30), with heating for the measurement channel tube. The gas sensor (30) is within a heated housing. The reaction chamber (23) is held at a constant temp. within a temp. controlled housing (31). USE/ADVANTAGE - The system is used to monitor the presence of hydrocarbons and halogenated carbons in water to prevent environmental damage, and is also used to monitor communal and industrial waste water. The technique can detect very small concentrations of hazardous matter simply.
Patent DE-4112207-A1 (DE)
Title: Antitheft device for attachment to wheel of vehicle - makes use of two C=shaped arms to clamp vehicle tyre
Inventor: SCHMOLKE HELGA
IPC: B60R25/09
Filed: 1991-04-13
Abstract: The anti-theft device is for trucks, cars and trailers. It consists of two C-shaped metal bows each having an elongated shank. The shanks are arranged to slide axially one over the other such that they can be joined together at one of a number of holes to form a clamp around the vehicle tyre, and in this position can be locked together using a key (19) inserted in a cylinder lock (14). USE/ADVANTAGE - Anti-theft device for a vehicle which gives protection additional to that offered by a steering column ignition lock.
Patent DE-4116375-A1 (DE)
Title: Long-term hot water storage unit - has polyethylene body with flanged connections to heat exchangers and also to similar energy storage units
Inventor: HAASE GEORG
IPC: F28D20/00
Filed: 1991-05-18
Abstract: A long term heat storage unit for use with heater is mfd. in PE or a similar polymer and has three flanged openings at the front to connect to a heat exchange unit. On both the long sides, flanged openings are provided to connect with similar storage untis, the connection being achieved with clamping rings. Any number of units can be connected to form a battery. The storage units can be used to retain heat produced in heating systems based on renewable sources of energy, e.g. solar energy. Units are easily transported, corrosion free and pass easily through standard doorways. USE/ADVANTAGE - The heat storage units are used to store hot water-produced by heat exchange e.g. from solar energy and can easily be installed and extended to form larger stores. (3pp Dwg.No.0/1)
Patent DE-4122376-A1 (DE)
Title: Operating three=way magnetic regulating valve - supplying pulses or DC with superimposed chopper signal to coil and adjusting frequency to minimise energy loss
Inventor: BARTHOLOMAEUS REINER
IPC: G05D16/20
Filed: 1991-07-05
Abstract: The proportional-pressure reducing valve has a piston (1) with two piston sections (2, 3) and control edges (4, 5) which work in conjunction with a pressure connection (P) leading to a pump and a connection to a tank (T). The ring space (6) between the two piston sections (2, 3) are connected to a work connection (A) in which the pressure is to be reduced proportionally to the magnetic flux. The pressure in the work connection (A) is effective in a hole (7) on the face side of the second piston section (3). Counterwise, the magnetic force acts via a thruster (8) of the proportional magnet drive on the first of the two piston sections (2). So long as the proportional magnet is without current, a withdrawal spring (9) switches the connection on the piston from the work connection (a) to the tank (T). The frequency of the pulses or chopper signal supplied to the coil is varied depending on the pressure being controlled, the flow rate, system pressure, speed of connected machine etc. ADVANTAGE - Minimises oil losses, maintains low hysteresis.
Patent DE-4122393-A1 (DE)
Title: Compensating pendulum movement for sync. motor - regulating motor current via reference system attached to rotor
Inventor: BRUNSBACH BERND-JOSEF DR
IPC: H02P25/03
Filed: 1991-07-05
Abstract: Pref., the reference system attached to the rotor is used in conjunction with the required motor r.p.m. to calculate the required values for the direct and the transverse current, the calculated values being weighted according to a given function and subjected to at least one transformation into a stator system. Pref., the values for the latter function are contained in a value table. USE - Preventing unwanted rotation variation of electronically commutated servomotor.
Patent DE-4125203-A1 (DE)
Title: Axial fixing for rotor shaft of electric motor - consists of plastics material ring retained radially by engagement of resilient arms in annular recess with tapered section
Inventor: WROBEL GUENTER
IPC: H02K5/16
Filed: 1991-07-30
Abstract: Two ball-bearings (12a, 12b) are spaced apart in a tube (13) in the stator (11) and supported radially on longitudinal ribs (18). The rotor (20) carrying a cylindrical permanent magnet (21) is secured by a hub (22) to a shaft (23) rotating within the bearings (12). The fixing ring (1) is in the form of a resilient knob insertable axially into the end of the shaft (23), with resilient retaining arms (4) extending radially into the annular recess (7). It is mfd. pref. by injection moulding of one piece of plastics material. ADVANTAGE - High-precision device comprising few components, is easily and cheaply installed.