baber/WOPTO huggingface dataset:
Patent DE-4106802-A1 (DE)
Title: Packaging machine for tubular bags - has side moulding shoulder, and lengthwise seam welding appliance with two moulding plates
Inventor: KAECHELE KLAUS ALBERT
IPC: B65B9/06
Filed: 1991-03-04
Abstract: The packaging machine for tubular bags incorporates a feeder-track for a semi-tubular packing foil (13). A side moulding-choulder (10) for the packaging foil can be adjusted in height and consists of a fixed moulding-plate (11) and a parallel second moulding plate (12). A lengthwise welded seam is made by an appliance (31) which can be adjusted in at least one direction crosswise to the direction in (11) which the tubular bag moves. The lengthwise welding appliance (14) forms a side seam (15) on the tubular bag and is positioned on a support (26) which can be moved tranversely and vertically to the direction (11) in which the tubular bag travels. USE/ADVANTAGE - The packaging machine for tubular bags can be more easily adapted to different sizes of objects being packaged.
Patent DE-4106885-A1 (DE)
Title: Mining skid with overhead casing and shield - has steering guide mechanism to adjust location
Inventor: NERLICH ERNST-GUENTER ING GRAD
IPC: E21D23/04
Filed: 1991-03-05
Abstract: The mining skid consists of framework for use in underground mining activities, and has a skid, overhead casing, backfill side shield and skidwork complete with steering guide rods. A hydraulic prop is located between the skid and the overhead casing. A forward hinge fitting and backfill side hinge fitting are located between the skid and the shield. Steering guide rods (4) are housed in the bearing section (10) and are capable of vertical and horizontal movement. The steering guide rods (4) have an extension piece (14) which is swivel-mounted to the bearing section (10) at the end (15) of the extension pieces (16). The steering guide rods (4) consist of two parallel guide rods between which is positioned the skid piston/cylinder arrangement. USE - In underground mining to enable the skid frame to be moved and adjusted in relation to the conveyor.
Patent DE-4107089-A1 (DE)
Inventor: NEUHAUS DIETMAR DR
IPC: B01D53/04
Filed: 1991-03-06
Abstract: Gases are separated or conveyed by surface diffusion using a solid body (28) traversed by extremely narrow passages (34). Because of the relatively high flow resistance due to the extremely small cross-section of the passages, the gas can be conveyed through the solid body (28) almost exclusively by surface diffusion. Consequently, only gases particles (42) adsorbed on the solid body (28) or on the walls of the passages (34) are conveyed through the solid body (28). The surface diffusion can be controlled by suitable choice of the gas/solid body combination. The diffusion is affected mainly by the temperature of the solid body (28). If, in the case of a two-gas mixture, the solid body (28) is heated to a temperature above the desorption temperature of one gas (44) and below the desorption temperature of the other gas (42), only the particles of gas adsorbed on the walls of the passage are conveyed by surface diffusion.
Patent DE-4110331-A1 (DE)
Title: Semiconductor device with low leakage current - has ion injected buried impurity layer and getter layer
Inventor: KUROI TAKASHI
IPC: H01L21/265
Filed: 1991-03-28
Abstract: A novel semiconductor device has (a) a buried impurity layer (3) at a predetermined depth from the major surface of a semiconductor substrate (1), formed by ion injection of an element which determines the conductivity type; and (b) a getter layer (2) adjacent to but not nearer the surface than the impurity layer (3), formed by ion injection of an element (pref. O, C, F, Cl or N) which does not determine the conducting type. Prodn. of the device is also claimed. ADVANTAGE - The device, e.g. an IC contg. several MOS transistors, can be provided with a soft error-preventing buried impurity layer and a crystal defect absorbing getter layer by rapid and inexpensive ion injection steps and has reduced leakage current.
Patent DE-4112122-A1 (DE)
Title: Workpiece teeth flank grinding method - alters centre distance disc position tilt angle and rotary movement to vary shape
Inventor: FAULSTICH INGO DR ING
IPC: B23F17/00
Filed: 1991-04-13
Abstract: The method grinds the flanks of internal or external workpiece teeth, using an indexing profiled disc, whose rotational speed determines the cutting speed, and which moves in a spiral path in relation to the work. For flank lime modifications, an alteration in centre distance and/or the rotary component of the spiral movement is superimposed. To produce simple modified flank profiles a suitable tool is inserted and/or flanks are formed in several passes. To produce complicated flank modifications an addtional movement is carried out, consisting of components on different axes, giving a predetermined chamfering of the flanks. This is produced by altering the centre distance (delta a), the disc position (delta e) in the direction of its axis of rotation, the momentary tilt angle (delta eta), and the rotary component of the spiral movement (delta psi), and dependent on the momentary position of the tool in the direction of the axis of the work. ADVANTAGE - Wide adaptability.
Patent DE-4112386-A1 (DE)
Title: Yarn folding machine - has automatic tension release and threading device inside hollow spindle
Inventor: ZABRANSKY FRANTISEK
IPC: D01H13/10
Filed: 1991-04-16
Abstract: A yarn tension device in the hollow spindle of a yarn folding machine, opens automatically during threading. A pneumatic device opens the tension jaws, which provide spring tension when closed. A tubular casing (2) pref. contains a pneumatic cylinder (3) above the hollow spindle (1). The cylinder has a hollow centre (4). The ring (23) is fixed into the case (2) and movement of the pneumatic cylinder forces a fork (5) against the slide, which is a wedge shaped groove, in such a manner that the two sections (9, 10) of the tension, open. The sections are hinged on pins (8) through the top angular sections (91, 101), etc. ADVANTAGE - The tension is compact within the spindle, has few components and therefore uncomplicated, and is automatic in use.
Patent DE-4115032-A1 (DE)
Inventor: MAYER RUDI
IPC: F02D41/18
Filed: 1991-05-08
Abstract: An onboard electronic system in a motor vehicle for recognition of an uneven surface over which the vehicle is travelling comprises a sensor (18) to monitor air flow in the induction duct (11) of the vehicle engine (10) and to provide a signal having a value indicative of, for example, air mass throughflow. Uneven road surfaces produce greater than usual fluctuations in the signal value and the system includes processing means to process the signal value, such as by filtering and comparison with a threshold value, in order to identify fluctuations signifying disturbance due to an uneven surface. A signal denoting a thus recognised uneven surface can be utilised in conjunction with, for example, systems for misfire recognition, wheel locking recognition and suspension regulation. <IMAGE>
Patent DE-4119145-A1 (DE)
Inventor: NOGOSSEK ALFRED
IPC: B29C48/395
Filed: 1991-06-11
Abstract: A device for plastifying plastic is given, which consists of two screws (4) which mesh with one another and are rotatable about their axis and of a screw barrel (2). At least one throttle point for continuous variation of the flow cross-section in the screw barrel (2) is disposed in the profile of the screws (4). In the region of the throttle point, slide plates (6) are arranged in openings (10) in the screw barrel (2), which slide plates are adjustable in a manner inclined at an acute angle ( alpha ) in the axial direction of the screws (4). The edge of the slide plates (6) directed towards the screws (4) extends parallel to the axis of the screws (4). In the chamber of the screw barrel (2) surrounding the screws (4), radial extensions (9), which are trapezoidal in cross-section, are disposed at the level of the throttle point, the relatively long parallel sides of which are directed towards the screws (4) and which extensions project into the openings (10). The slide plates (6) are adjustable about a path between two limiting positions delimited by the parallel sides of the extensions (9) and corresponding to the radial height of said extensions (9). 
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Patent DE-4120290-A1 (DE)
Title: DRAM with operation block - stores memory commands in process buffer for combination with input data in single cycle write operation
Inventor: OGAWA TOSHIYUKI
IPC: G11C11/4076
Filed: 1991-06-19
Abstract: A multiple cell (1 to 4) dynamic memory (DRAM) comprises address inputs (A0-A8), combined data and operations in/outputs (D01-D04). Address inputs are routed to column- and row-decoders while DRAM control commands are fed in at D01-D04. These are stored in a command buffer m (10) while data is fed into the  input buffer (12). Internally generated timing signals (13) then activate the stored commands to write the data into the cells via the operations block (8). USE/ADVANTAGE - High-speed image processing circuits. Single cycle set-up and execution of memory commands. Chip integration provides speed and reliability.
Patent DE-4124419-A1 (DE)
Inventor: WALBROEHL HEINZ-THEO
IPC: E21D9/06
Filed: 1991-07-23
Abstract: In order to avoid the time-consuming and labour-intensive adjustment of key beds in the area between a cutter of a tunnelling shield and its supporting frame, the invention calls for a new type of cutter radial-control unit. In order to provide radial control of the cutters (2) which rest against the supporting frames (4, 6) and are driven forward individually in a given sequence two keys (10, 12), disposed one on top of the other, are located between the underside (8) of each cutter (2) and the forward supporting frame (4) (i.e. that located in front in the direction of cutter advance). One key (10) is fitted on the underside (8) of the cutter (2) so that it cannot move in the cutter advance direction relative to the supporting frame (4), while the other key (12) can be moved by means of a drive device, in particular a hydraulic or pneumatic drive, relative to the supporting frame (4), thus providing the cutter inclination necessary for radial control.
Patent DE-4125735-A1 (DE)
Title: Drive speed changing appts. e.g. for motor of laboratory stirrer - comprises switchgear, with manually operated potentiometer
Inventor: BUCHMANN WOLFGANG
IPC: H01H3/02
Filed: 1991-08-02
Abstract: Equipment for switching or speed changing of drives esp. for stirrers, in which switchgear is provided for multistep rotational speed changing, includes a manually operated potentiometer which is used simultaneously for motor speed variation and for effecting gear changing, the gear changing being carried out in a potentiometer position in which the motor speed is zero or very low. The adjusting spindle (5) of the potentiometer (3) pref. has a switch cam (5a) which operates a switch (4) in or near the zero position of the potentiometer (3). Closing of the switch (4) causes prodn. of a pulse which via electronics (2) effects speed changing of the drive (1). USE/ADVANTAGE - The equipment is useful for laboratory stirrers. It provides safe switching to different rotation speed ranges and prevents unintentional speed changes.
Patent DE-4128284-A1 (DE)
Title: Sensor signal detection circuit - uses sync. demodulator for suppressing noise component inserted between sensor and trans-impedance amplifier
Inventor: KODL GEORG DIPL ING
IPC: G01R15/00
Filed: 1991-08-27
Abstract: The detector circuit is used for a weak signal provided by a sensor (1) and representing a monitored physical parameter. The sensor (1) has a current source with a high internal impedance and is used with a low impedance load in the linear measuring range, provided by a trans-impedance amplifier (7), a synchronous demodulator (3) and a low-pass filter (10) on the output side. The synchronous demodulator (3) inserted between the sensor (1) and the trans-impedance amplifier is used to suppress the signal noise component and uses two switches (4, 5) controlled in alternation by a control signal (6). Pref. the switches are provided as light-controlled MOSFET switches associated with light-emitting control diodes. The trans-impedance amplifier (3) pref. acts as an instrument amplifier. USE - For sensor using piezoelectric element or capacitor microphone.
Patent DE-4128389-A1 (DE)
Title: Double acting cylinder with ring piston and central piston - with dimensioning of effective surfaces to ensure pistons can move to mid-point
Inventor: BLANZ ROLAND
IPC: F15B11/12
Filed: 1991-08-27
Abstract: The double acting actuation cylinder has the ring piston (11) or the central piston (8) formed as a stepped piston. The ring piston has a projection (25) with a stop element (23) for the central piston. The effective surfaces of the central piston and the ring piston are so dimensioned in relation to the pressures acting on them that the central piston and the ring piston are moved to a mid position under simultaneously acting pressures. USE/ADVANTAGE - Double acting cylinder with two end positions and a middle position having a relatively short axial structural length.
Patent DE-4129506-A1 (DE)
Title: Ladder for climbing masts, for maintenance works, etc. - consists of three sections, top one having clamp for fastening to mast, and fold-out tread
Inventor: HINZ KLAUS
IPC: E06C7/16
Filed: 1991-09-05
Abstract: The ladder is held on a mast by a clamp, and consists of several sections. A mast clamp (7) is fastened to the top ladder section (3) only. All sections (1,2,3) have fittings, so that they can be pushed inside each other. A fold-out step (12) is located on one of the top rungs (6). A spindle (19) to support a foot (20) is located at the lower end of one string piece (4) of the lowest ladder section, or on th end of a transverse bar on that section. The string pieces are arranged in a trapezoidal shape, so that their relative distance is smaller at the top end than at the bottom end. USE/ADVANTAGE - ladder can be fastened securely to mast, and permits easy maintenance works, etc.
Patent DE-4133553-A1 (DE)
Title: Lighting coal or briquette fuel in cooking grill - in simple safe arrangement without use of ignition liquid
IPC: A47J37/07
Filed: 1991-10-10
Abstract: This is an arrangement for lighting cooking-grill coal or briquettes without using an igniting liq. A rectangular pipe, whose length is at least twice the breadth, has openings (4) in opposite sides. The grid or grate for carrying the coal or briquettes, is inserted through the openings. There is at least one opening (3) for air. Variants claimed include various constructional details. USE/ADVANTAGE - Some igniting arrangements involve lighting the fuel elsewhere and shaking it, while glowing, into the grill receptacle; soot and sparks fly around and, among other drawbacks, there is a risk of fire. Ignition liquids may be banned in the future, and this would render some grill arrangements unusable. The proposed arrangement, in which the grate is inserted and coal or briquettes are piled on it, and ignited by burning paper (e.g. a crumpled sheet of newspaper) under them, overcomes the disadvantages of these other arrangements. The arrangement can be readily packed for transit. Its possible use in caravans and similar surroundings is mentioned.
Patent DE-4138193-A1 (DE)
Title: Coupling for compressed air and electric line for vehicles - has mechanism with guide sleeve with track to move plug and socket elements into engagement.
Inventor: RAUSCH ULRICH
IPC: B62D53/12
Filed: 1991-11-18
Abstract: The connections are provided by plug (5) and socket (2) units mounted on coupling elements (1,4), fixed respectively to separate vehicles. One of the couplings (1) has a cylindrical section (13) with a track (9) to receive a follower (8). The latter is forced to move along the track when a rotary spigot (11) is turned. The track has axially parallel input sections and a part with a screw thread. As rotation occurs the plug and socket elements are brought into engagement. ADVANTAGE - Simplifies engagement and disengagement of coupling while not being affected by environment.
Patent DE-4138527-A1 (DE)
Title: IC engine control with equalising leverage - has shaft between swivel lever and tappet for geometric transfer of slide face centre point
Inventor: DEUSCHLE VOLKER
IPC: F02D13/02
Filed: 1991-11-23
Abstract: The i.c. engine valve mechanism control comprises a shaft (3) between a rocker arm (2) and a cup tappet (5), and a two-point lever (4). A bearing (10) on the two-point lever is so varied that with a closed valve the shaft always has the same position and the adjustment point of the lever is varied within a definite arc of circle (11). The centre point of the circle corresponds to the centre point (9) of the shaft journal when the valve is closed. USE/ADVANTAGE - For i.c. engine valve control, with exhaust gas condition and reduced specific petrol consumption.
Patent DE-4139189-A1 (DE)
Title: Testing external quality of objects, esp. components on PCB - testing with different test devices according to different evaluation data entered into computer
Inventor: TOKURA NOBUFUMI
IPC: H05K13/08
Filed: 1991-11-28
Abstract: The method involves evaluating system (3,4) based on two-dimensional image data which are entered into a computer. In a second process, the quality is accurately evaluated using a laser (7) device and accurate evaluation data entered into the computer. In a third process the results of the first process are stored depending on the results of the accurate testing of the second process. ADVANTAGE - Enables rapid and accurate testing.
Patent DE-4200752-A1 (DE)
Title: Detecting misfire in IC engine - using crankshaft sensor to detect change in angular acceleration
Inventor: NAKAGAWA AKIHIRO
IPC: G01M15/11
Filed: 1992-01-14
Abstract: To detect the occurrence of misfiring in a single or multi-cylinder I.C. engine (1) driving a crankshaft (1a) incorporates the following stages are used. Determine via the sensor (6) successive angular accelerations of the crankshaft (1a) w.r.t. a prescribed orientation of the crankshaft (1a)/cylinders (2,3,4,5). Determine via the computer (7) any change in crankshaft acceleration between the instantaneous value just measured and a previously measured acceleration. Compare any such change with a predetermined limiting value and record the occurrence of an ignition failure if the observed change exceeds the predetermined limiting value. USE/ADVANTAGE - Simple construction. Avoids need for cylinder pressure sensors as used in previous systems. Compensates for influences external to engine, e.g. difficult and uneven terrain.
Patent DE-4200823-A1 (DE)
Title: Drink container holder with retaining aperture - has several holding elements swivelable into open and closed position
Inventor: BROOME TIMOTHY
IPC: B60N3/10
Filed: 1992-01-15
Abstract: The holder has an opening for retaining drink cans, cups,or glasses. The holder (1,3) has several holder elements (6,7) which can be set in an open or a closed position (2,4). The holder elements provide recesses (10-13) facing each other for the can etc.retaining in the open position (2) and form a support surface (25) in the closed position (4). The recesses face each other and form a circular or a polygonal opening (14). The face (30) of the holder element (7) has a recess (31) and the opposite holder element (6) has a rough surface (33). USE/ADVANTAGE - For fitting to a car dashboard,with versatile applicability.
Patent DE-4202826-A1 (DE)
Title: Tripod with swivelable camera support plate and telescopic legs - has slits in top leg sections forming tongues with noses for easy locking
Inventor: LIER JOSEF
IPC: F16M11/32
Filed: 1992-01-31
Abstract: The top leg section (21) has underneath two slits parallel to the longitudinal axis, forming a flexible tongue with an upwardly protruding nose (28,30) at the end as a stop for the projection (32,35) which is mounted on the underneath of the following extending section (22,23). A nose (27,29) protruding down at the edge of the upper surface of one section (21,22) engages at the same time with a recess (22F,23F) in the following section (22,23). The extending sections have on the side opposite the extending direction underneath a projection (31) which serves as the support. The section with the smallest cross-section has an open profiled section provided on the underneath with reinforcing ribs. USE/ADVANTAGE - For camera tripod,with simple design,low-cost mfr.,and easy handling.
Patent DE-4207744-A1 (DE)
Title: Coin delivery unit for vending machine - has sliding element transferring coins into complex delivery channel in double action movement
IPC: G07D1/00
Filed: 1992-03-11
Abstract: The unit has coins held in a magazine tube (2) with coins extracted from the base. The lower coin locates in a recess in a sliding element (5) and this is moved sideways to displace the coin which drops onto a lower surface (8). The return action of the slide passes the con through a gap (9) and into a delivery chute. The slide is moved by operation of an electromagnet (13). This causes the armature (14) to move allowing a spring loaded element  (15) to operate a link (19). The link is hinged (22) and the lower end (23) engages the slide. ADVANTAGE- Has output designed to prevent manipulation.
Patent DE-4213324-A1 (DE)
Inventor: HORN ELMAR-MANFRED DIPL CHEM D
IPC: C01B17/88
Filed: 1992-04-23
Abstract: The invention relates to a process for concentrating and/or purifying sulphuric acid to concentrations of from 80 to 97% H2SO4, in which process temperatures in the range of from 90 to 350 DEG C can be employed, and installation parts which come into contact with the sulphuric acid consist of special alloys.
Patent DE-4220606-A1 (DE)
Title: Chain wheel for link chain - has paired ring-shaped damping components, fixed on both sides by tension screw so that when chain rotates its shackles are noise-damped
Inventor: STIESBERG REINHARD
IPC: F16H55/30
Filed: 1992-06-24
Abstract: The damping components (14) of wearproof plastics are positioned on one end of a hollow pin accommodated in a hole in the chain wheel plate, and the tension force of a tension screw (16) passing through the hollow pin is transmitted by discs on to the damping components. The damping components are arranged in the area of a gap (13) between two teeth (12). Alternatively the components (20,21a,21b) are arranged in the area of the teeth.
Patent DE-4222871-A1 (DE)
Title: Electric or fibre=optic cable conduit bundle
Inventor: VOGELSANG HORST
IPC: F16L11/22
Filed: 1992-07-11
Abstract: The bundle comprises several conduit tubes (2) made of thermoplastic plastic and assembled by means of integrally formed, ductile, longitudinal web(3). The bundle can be unbundled to form an even tubing aggregate. Bundle sealing ribs (5) are integrally formed on the outer tubes of the aggregate.Both ribs are arranged face to face and welded together by a longitudinal seam. The latter is designed as contact weld seam with raising edge faces of cable conduit sealing ribs facing each other.
Patent DE-4226448-A1 (DE)
Title: Clock with multiple set time indicators
IPC: G04G13/02
Filed: 1992-08-10
Abstract: The timing device such as a wrist watch or clock, or a desk top time indicator or device incorporated in a process control unit has a display unit for the actual time and also includes an audible or visual warning system for a number of selected set times or time periods. Each set time is determined by an input unit which stores data corresponding to the interval of time between the actual time and the target time.     The input data can correspond to a day, week, month or quarter. The system which initiates the audible or visual warning uses a timer which operates in steps of one minute and can operate forwards or backwards. The three sets times can be separately indicated for different activities and can be repeated at specified time intervals.