baber/WOPTO huggingface dataset:
Patent DE-4119047-A1 (DE)
Inventor: LAUTENSCHLAEGER HORST
IPC: F16B13/02
Filed: 1991-06-10
Abstract: The invention concerns a rawplug-like mounting pin (10), designed particularly for fixing furniture fittings to pieces of furniture, which is made of plastics material and is fixed in place by pushing or driving it into a bore (16). The pin has an elongated shaft section from whose outer surface extend a multiplicity of vane-like projections (20) which encircle the shaft and are spaced at intervals along the longitudinal axis of the shaft, each tapering outwards with a triangular cross-section to form a blade-like retaining edge. The diameter of the shaft section (18) is significantly smaller over most of the shaft length than the diameter (d) of the bore (16) in which the pin is placed, and the projections (20) are designed as flat, ring-shaped, elastically deformable lamella (20) which are integral whith the shaft (18) and whose external diameter (D) is greater than the diameter of the bore (16).
Patent DE-4120451-A1 (DE)
Title: Motor drive camera shutter - has error detector operating if level of light interrupting signal does not change before set time elapses
Inventor: TAGAMI SHIGERU
IPC: G03B9/62
Filed: 1991-06-20
Abstract: Shutter lamellas (16, 17) open and close an aperture in response to rotation of the drive motor. A light interruption signal output unit is actuated by a light beam arriving from a light transmitting element to reach a light receiving element via a detecting section formed int he shutter lamella (3). A timer is set and reset by the light interruption signal when a predetermined time is counted. A shutter fault detector closes the lamellas and delivers a fault signal if the level of the light interruption signal does not change before the timer has counted down the predetermined time. ADVANTAGE - Detects faulty timing of shutter arising, e.g. from battery power fluctuations.
Patent DE-4122246-A1 (DE)
Title: Processing sewage sludge by removing water and converting to particles - comprises mixing with particulate carrier, heating mixt. in vertical chamber oven and collecting gases, carrier and ash
Inventor: BRUNS KARL-HEINZ
IPC: C02F11/13
Filed: 1991-07-05
Abstract: In processing sewage sludge by withdrawal of water and heating to destroy organic components, (a) the sludge, largely dewatered and converted to particulate form, is treated with a particulate carrier, differing from sewage sludge and solid at the temp. of treatment, (b) the mixt. is fed to the upper part of a vertical chamber oven, (c) the mixt. is gradually heated, largely with exclusion of air, to at least 900 (at least 1000) deg. C, until the sludge has been ashed, (d) the liberated gases and vapours are collected and fed to a combustion appts., and (e) the carrier is removed with the sludge ash from the lower part of the oven. (a) The carrier has particle size 20-250 mm, and is lignite, an inert mineral, or lignite or coal coke. The ratio by wt. of carrier sludge is 0.1-2.0 (0.3-1.5). (b) The oven is a lignite coking oven, through which the mixt. gradually sinks, with a temp. gradient along the vertical axis of the oven. (c) The collected gases and vapours are used for the external heating of the oven, with addn. of other combustion gas if the carrier does not liberate combustion gas at the temp. of treatment. (e) The carrier is sepd. from the ash and re-used, and the sepd. ash is used as additive in the cement industry; or the ash and the carrier, consisting of coke, may be re-used together. The appts. is claimed. ADVANTAGE - The proces is simple, can be carried out in existing lignite coking plant, and gives prods. which are (partly) re-usable.
Patent DE-4122626-A1 (DE)
Title: Bulk-material transfer machine for roofed storage - has feed which delivers and extracts material via self-supporting boom travelling near roof
Inventor: AREND JUERGEN
IPC: B65G65/06
Filed: 1991-07-09
Abstract: The machine delivers and extracts bulk material to and from a roofed storage surface, having a boom travelling along the surface. The boom (7) is self-supporting, i.e. needs no portal, and is mounted on a travel chassis (B) with a drive at the loading or extraction end. It travels above the surface (2) and close to the roof (1). Typically it is suspended from the latter via a travelling crab (12) and rope falls (13). It can be derricked by a pendulum-mounted winch (14) at its head (11) and whose rope is reeved round the pulleys on the crab. ADVANTAGE - Minimum load on structure and occupies minimum amount of space.
Patent DE-4124173-A1 (DE)
Inventor: WEIDER WOLFGANG
IPC: B66C23/74
Filed: 1991-07-20
Abstract: The invention relates to a crane truck with a drivable undercarriage and a superstructure supported on the undercarriage to be rotatable by means of a slewing rim, the superstructure having a counterweight, which is movable by an elevating mechanism consisting of two piston-cylinder drives between an elevated operation position and a driving position when it rests lowered onto a support on the undercarriage. The piston rods of the piston-cylinder drives are drivable to rotate between a locking and unlocking position referred to the counterweight. The desired positions of the piston rods in their positions of crane operation and release as well as their locking and unlocking position are displayable by means of proximity switches on the piston-cylinder drives, so as to eliminate operation errors and disturbances in the hydraulic system of the piston-cylinder drives by way of various control units.
Patent DE-4127192-A1 (DE)
Title: Data processing network system - has modules contg. number of CPU units coupled to local network with modules connected onto regional network
Inventor: VORBACH MARTIN
IPC: G06F15/173
Filed: 1991-08-15
Abstract: The data processing network has a number of CPUs, e.g. 16 (1) that are organised in modules. The CPU elements are so called transputers, each of which has four channels (3) that connect with a programmable control unit (2). Each of the units connects via a data transmission bus (5). The CPU units when plugged into a module provide a connect with the others via the control unit to form a local network. The interconnection of the modules via the bus forms a regional network. ADVANTAGE - Limited interconnection wiring. High speed operation.
Patent DE-4128793-A1 (DE)
Title: Cheap, compact capacitive liq.-level measuring system for e.g. food industry - has electrodes covered with non-conductive layer on aluminium oxide support
Inventor: BURKERT GERALD DIPL ING
IPC: G01F23/26
Filed: 1991-08-27
Abstract: System comprises an electrically-insulating base, on one side of which are flat electrodes and active components of an evaluation circuit; while on the other side are electrodes detecting specific max. and min. levels. A support of di-aluminium trioxide, is printed on both sides with paste contg. precious metal, using the thick layer technique. On one side are two flat electrodes forming a condenser, and on the other two pairs of electrodes, defining two reproducible filling levels. The entire electrode system is covered with a non-conductive layer also forming the dielectric for the condenser structure. Windows are formed in the layer to allow contact between the pairs of electrodes and the liq. On the support is a hybrid-integrated evaluation circuit, by which automatic calibration of the characteristic curve is carried out through parallel detection of levels by the flat electrodes and the pairs of electrodes. The combination of support, electrodes non-conductive layer and evaluation circuit is interchangeable as the result of the automatic calibration. The layer can be of polymer, such as PTFE or polyimide. USE/ADVANTAGE - Physiologically compatible with medium measured, low cost, and compact. The capacitive measuring system is for the filling levels of liquids, and partic. for the rate at which these alter, in the case of electrically-conductive liquids used in medical technology and in the food industry.
Patent DE-4131620-A1 (DE)
Title: Separating soldered components from surface of circuit boards - immersing boards in solder bath by mechanical handler to aid separation when solder melts
Inventor: KOHLER GERD DIPL ING
IPC: H05K3/34
Filed: 1991-09-23
Abstract: The p.b.c. is immersed to a predetermined depth in a solder bath. The temp. of the bath is held some 40 degrees Celsius higher than that used originally. Located between the board is a screen to collect components separated from the surface. Double sided boards may also be used. A mechanical arrangement with a combination of gripper and multiple slide elements may be used to aid separation. Ultrasonic excitation of the bath may also be used for this purpose. ADVANTAGE - Large number of components can be released in single working process and collected without damaging them.
Patent DE-4134056-A1 (DE)
Title: Electromagnetic adjuster current controller - has measuring resistor incorporated in lead between power transistor and magnetic coil
Inventor: LANG ARMIN
IPC: H01H47/00
Filed: 1991-10-15
Abstract: The electromagnetic proportional adjustor has a magnetic coil (7) whose feed current is controlled by a power transistor (1) in dependence on a pulsed voltage, modulated by a comparator (10) for a rated and actual value voltage. In the lead (6) between the power transistor and the magnetic coil is incorporated a measuring resistor (3), with a freewheel diode (19) in parallel to the coil and resistor. The resistor terminal on the power transistor side is coupled to the non-inverting input (25) of an operational amplifier (34) via a resistor (20) of a voltage divider. On the coil side, the measuring resistor terminal is coupled to the inverting input (24) of the rectifier via a series resistor (21). The amplifier output (26) is coupled to its inverting input via a push-pull resistor (23), and to a nodal point, coupled to a voltage divider second resistor (22) via an output resistor (27). USE/ADVANTAGE - For car servo-steering etc., with protection of measuring resistor against destruction by connecting faults.
Patent DE-4134867-A1 (DE)
Title: Table with pairs of swivelling legs -  has locking device with detent members engaging in recesses in legs
Inventor: MOLL REINER
IPC: A47B3/08
Filed: 1991-10-22
Abstract: The table has pairs of legs swivel mounted underneath the table top wherein the legs of each pair are connected together by an intermediate member set near the table top. A locking device is set on the table top in the centre of the intermediate member and acts on the latter. This locking device interacts with at least one detent member such as a ball or frusto-conical pin (15) mounted on or in each bearing body where it is adjustable at right angles to the associated table leg. When the pair of legs is swivelled open, the detent member engages in a conforming recess provided in each table leg. ADVANTAGE - Reliable locking is achieved, even after constant usage.s
Patent DE-4141528-A1 (DE)
Title: Layered structure liquid crystal cell for pixel display - causes alignment of ions to increase conductivity of polymer material forming orientation layers by at least factor of ten w.r.t. fully polymerised layers
Inventor: BROSIG STEFAN
IPC: G02F1/1337
Filed: 1991-12-17
Abstract: The liquid crystal display has two substrate plates (11.1,11.2). Each plate has a number of elongate, transparent, spaced apart strip electrodes (13.1,13.2). These are covered by a smoothing and insulating layer (16) and a polymer orientation layer (16). The electrodes (13.1,13.2) are spaced apart such that they allocate orientation layers to each other. The electrodes (13.1) on one substrate are at 90 deg. to those (13.2) on the other substrate. A liquid crystal (17) fills the space between the plates (11.2,11.2). The conductivity of the orientating layer (16) is increased by at least a factor of ten by ion enhancement. When an alternating voltage is applied to the electrodes (13.1,13.2) not only those liquid crystal molecules (18) at the crossing points (14) are transferred in a homotopic direction. The electric field causes the ions to wander into an ordered distribution in the orientating layer (16). ADVANTAGE - Increased picture reproduction rate and increased contrast.
Patent DE-4141672-A1 (DE)
Inventor: ANTZIOPOULOS PHILIPP
IPC: G03G15/00
Filed: 1991-12-17
Abstract: A control system is disclosed for office machines, in particular photocopiers (10) or the like, with at least one wear part (12-21) that needs to be exchanged after a certain operating time and at least one operating time detector (22-32) connected to a display unit (22-32) that displays the operating time or indicates when an operating time threshold is exceeded. A read/write unit (48) is provided for code data carriers (50), in particular magnetic or smart cards associated to each wear part (12-21) to be installed. When the code data carrier is inserted, the control system resets the operating time detector. Such a control system reduces the risks of installation of wear parts of inadequate quality.
Patent DE-4141798-A1 (DE)
Title: Cold test assembly for automotive electronic components - has wind tunnel connected to both ends of cold tunnel, with cooling agent injected into cold tunnel
Inventor: FESSMAIER JOHANN
IPC: G01M99/00
Filed: 1991-12-18
Abstract: Air moves through a cold tunnel in the opposite direction to that taken by electronic components under cold test. The low temperature is generated in the air flow by a liquid agent which is injected into and evaporated in the air. A wind tunnel is connected to both ends of the cold tunnel, with the cooling agent injected by a jet into the cold tunnel. Pref. and electronic controller regulates the flow of gas from a liquid nitrogen cylinder (25) USE/ADVANTAGE - E.g. for testing antilock braking systems or gearbox controllers. Reduced testing time in cooling tunnel. No environmentally dangerous coolants.
Patent DE-4203544-A1 (DE)
Title: Metal cutting tooltip insert - has cutting sections with hollow rake face that merges into cylindrically hollow surface of central clamping section
Inventor: EHRENBERG HENRY
IPC: B23B27/16
Filed: 1992-02-07
Abstract: The insert has thread form cutting sections (9) at each end. Between the two cutting sections is a holding or clamping section (2) with a surface (10) which is cylindrically hollow in the transverse plane (20). At the cutting sections (9) the surface (10) merges into the hollow rake surface (11), which also has curvature in the longitudinal plane of the insert. The insert is symmetrical about the longitudinal and transverse middle planes and can be turned round or inverted to present fresh cutting edges (15). ADVANTAGE - Cutting angles can be simply and precisely adjusted to suit machinability of workpiece material. Good chip flow.
Patent DE-4203613-A1 (DE)
Title: Central heating control system - has central computer evaluating individual room temperatures and controlling heater valves according to set points
Inventor: SANDLER MARTIN
IPC: F24D19/10
Filed: 1992-02-07
Abstract: The control system has heating elements in different rooms, at least one heat source, a circulating fluid circuit with pump attached by a mixing valve to the heat source and distribution pipes connected by adjustable valves in the rooms to the heating elements. The system is controlled by a time clock and comparison of actual temperature with required temperature switches the pump and/or the mixing valve on or off. A central computer controls the individual room valves and depending on the room temperature settings, opens fully the room valve where the maximum heating is needed, whilst the other room valves are only partially opened (throttled). ADVANTAGE - Exact and rapid control of temperature in individual rooms.
Patent DE-4207548-A1 (DE)
Title: Precision linear drive mechanism - has pair of rotating plates with air bearings and with friction drive along angled support track
Inventor: LANGENBECK PETER DR ING
IPC: F16C29/04
Filed: 1992-03-10
Abstract: The movable platform (6) has a pair of rotating discs (3) rotating on stubs (5) in the platform and with air film bearings between the discs and the stub, and between the discs and the angled support track. The platform is held towards the track by permanent magnets (7). The platform floats on the air bearings and is held onto the air bearings by the magnetic grips. The edges of the rotating discs have a friction grip with the side flange (4) of the track. USE/ADVANTAGE - Precision movement of linear drive with reduced mechanical complexity.
Patent DE-4209993-A1 (DE)
Title: Electric tea or coffee maker
Inventor: LIETZ MANFRED
IPC: A47J31/057
Filed: 1992-03-27
Abstract: The tea or coffee maker has a heat source (16) for heating the water in a fresh water container (1), the heated water supplied via a riser pipe (7) to a filter (11) containing ground coffee or tea leaves, supported above a reception jug (19). A valve (4) blocks the reverse flow of water to the fresh water container.The heat source is heated by a boiler (2) with a vol. which is a fraction of the vol of the fresh water container and is coupled to the base of the container via a coupling line (3) including the non-return valve (4), blocked when the boiler is filled and by the steam pressure in the boiler.
Patent DE-4210687-A1 (DE)
Title: Supply of viscous hardening reagents - by recirculating materials in ring mains and supplying to mixers by three=way valves when required
Inventor: TERHARDT JOSEF
IPC: B29C31/06
Filed: 1992-04-01
Abstract: Two or more viscous hardening reagents e.g casting resins, are supplied pref. to a vacuum, from container (10, 12) to metering devices (14, 16) fitted with non-return valves (18, 20). The reagents are then taken to mixers (30, 130, 230, 330) and back to the storage containers (10, 12) through pipes (22, 24) which form a ring main. The mixers (30, 130, 230, 330) can be fed through 3-way valves which either allow the material to flow in the ring main or to a mixer. Polyester resin filled with quartz particles is pref. supplied from a stirred 300 l storage vessel (10) with hardener being supplied from another vessel (12). Three-way valves (126, 128) are controlled by an electronic process controller so that material is only supplied to the mixer (130) when needed for the casting process while the rest of the time it is recirculated along the ring main (22, 24). Successive mixers along the ring main are controlled in a similar manner till the cycle is repeated. USE/ADVANTAGE - By recirculating material in a ring main, sedimentation of material loaded with filler is avoided and rapid hardening resins can be used safely.
Patent DE-4211471-A1 (DE)
Title: Adjustment of shoulder seat belt to suit size of occupant - using slotted opening mounted to swivel about axis on seat backrest
Inventor: WESTRICH ANDREAS
IPC: B60R22/26
Filed: 1992-04-06
Abstract: The vehicle seat has a shoulder belt restraint system. It has a slot-like opening (10) in a fitting mounted on the backrest and capable of swivelling about an axis (8). The slot-like opening is aligned with a gap in the wall of the back rest (2) and the axis about which the cover (9) swivels can be set symmetrically or asymmetrically with respect to the symmetrical plane of the slot-like opening. USE/ADVANTAGE - Seat belt arrangement in vehicle in which irrespective of the size of the seat occupant the shoulder belt will alwasy follow an optimal path from the shoulder to the back rest.
Patent DE-4214073-A1 (DE)
Title: Filter element for filter press - has rigid porous filter plates pref. of hardened or polymerised plastics
Inventor: STEINER WOLFGANG DIPL ING
IPC: B01D25/21
Filed: 1992-04-29
Abstract: In a filter press, filter element having filter chambers (15) between respective pairs of filter plates (10,11,12) made (partially) of porous filter materials, openings (13, 14) for suspension feed into the filter chambers and channels (16, 17, 18) for filtrate discharge, the filter plates (10, 11, 12) consist of a rigid porous filter material (pref. hardened and/or polymerised plastics such as epoxy resin or polymethyl methacrylate), at least in the regions facing the filter chambers (15) and in the region of the filtrate channels (16, 17, 18). ADVANTAGE - The filter element has a simple structure, reduced thickness and improved filter cake detachment characteristics
Patent DE-4216385-A1 (DE)
Title: Plough attachment for tractor - has control cylinders between frame and mounting frame and control rod, and controller coordinating deflections of ploughing frame and body using microprocessor-controlled valve
Inventor: KNABL STEFAN ING
IPC: A01B3/42
Filed: 1992-05-18
Abstract: The plough attachment has a mounting for coupling to a tractor and a ploughing frame carrying several pviotable ploughing bodies mounted on an approximately vertical axle. The control cylinders (11, 12) are mounted between the mounting and frame and between the frame and a ploughing body control rod. A controller causes one cylinder to be supplied if the other is supplied to coordinate the deflections of the frame and ploughing bodies. Displacement or proximity measurement devices (22, 24) associated with both control cylinders deliver output signals to a miroprocessor (20) which controls a valve (25) in the feed line to one of the cylinders (12). ADVANTAGE - Controller eliminates disadvantages of conventional mechanical control transmissions for control cylinders.
Patent DE-4217114-A1 (DE)
Title: Moulding equipment for thermoplastic scrap e.g. plus waste paper - plasticises scrap in extruder and feeds it through tube with pressure plunger via valve to nozzle positioned before several moulds in turn
IPC: B29C45/12
Filed: 1992-05-25
Abstract: In plant for producing mouldings from thermoplastic scrap material a plasticating extruder feeds the material directly into moulds through a tube without extra aid. The plan view shows the one extruder feeding four moulds through the supply tube. This tube has a vertical length leading to a second horizontal length which can feed each mould in turn. The vertical part is rotated into each appropriate position, and its second horizontal length includes a flow valve and end nozzle. The horizontal part has a pressure plunger behind it. A system operates the plunger which forces material out of the nozzle. The extruder is fed with scrap film, granulate or mixed thermoplastics and paper. As soon as one mould has been filled from the feed tube, its valve is closed, and the system is turned to the next mould for a repeat of the injection procedure. The complete set of operations is controlled by a computer and its programme, including the opening and demoulding of each successive mould. ADVANTAGE - The process obtd. is economical. It is suitable for moulding mixed plastic scrap or scrap mixed with waste paper. It can produce mouldings up to more than 20 kg wt.
Patent DE-4217289-A1 (DE)
Title: Fluid-cooled power transistor device, e.g. IGBT, MOSFET or BIMOS for controlling machine
Inventor: LUTZ DIETER DR ING
IPC: H02K29/00
Filed: 1992-05-25
Abstract: The device has the semiconductor element (1) mounted on an insulating substrate board (9) via a metal electrode (7). The opposite side of the semiconductor element and/or the substrate board lie in direct thermal contact with the forced cooling flow fed through a cooling channel (13).The substrate board also supports the control and protection circuit for the semiconductor element with the substrate board and/or the semiconductor element acting as part of the wall of the cooling channel and pref. having a microstructure which reduces the boundary layer thickness of the coolant flow.