baber/WOPTO huggingface dataset:
Patent DE-4004773-A1 (DE)
Title: Brake using IC-engine of tractor - has provision of adjustment pump to prevent engine overspeed with pressure limiting valve
Inventor: FLECKENSTEIN FRANZ DIPL ING
IPC: F16H61/4078
Filed: 1990-02-15
Abstract: The method is for braking a vehicle braked by the transmission and the engine using a variable delivery pump driven in at least one working direction by the engine of the vehicle. On exceeding an engine speed rotational limit the adjustment pump (1) is adjusted in the direction of a greater delivery volume.  The dammed up pressure medium is released via a pressure limiting valve (13). USE/ADVANTAGE - Brake for a tractor avoids overspeeding the engine and hydraulic aggregate.
Patent DE-4009502-A1 (DE)
Title: Toy with top and bottom plate parts - has parts joined to four suspension points in four corners of square and has flexible or rigid pulley chains
Inventor: WINTER KORD
IPC: A63G31/14
Filed: 1990-03-24
Abstract: The toy has a top plate part (10). It is supported at four suspension-points positioned on one plane in the corners of a square, by means of flexible or rigid pulley-chains (16). The chains are linked to four suspension points on one plane in the corners of a square, belonging to a bottom plate-part (11). The top part (10) is box-shaped to grip over the bottom part (11). USE/ADVANTAGE - The toy can be used for thereapy for physically handicapped patients.
Patent DE-4010632-A1 (DE)
Title: Movable conveyor unit with central holder unit - has single sided supports for support arms for greater versatility
Inventor: FRANKE JOERG DIPL ING
IPC: B65G47/80
Filed: 1990-04-03
Abstract: The movable conveyor has separate conveyors (3) mounted on frame-like supports (2) and designed to swivel about a central movable holder unit.  Only one one-sided statically designed support (5,6) set inside the area of the central holder unit (1) is required for each support arm (2). The tip-up safety of the entire conveyor system is permanently guaranteed particularly with any vertical and/or horizontal position of the conveyor wherein all types of function of the conveyor system are adjustable individually and independently of each other.  The middle part (1') of the central holder unit is pref. tubular. USE/ADVANTAGE - The one-sided support provides greater conveying flexibility although there is still great stability.
Patent DE-4013760-A1 (DE)
Title: Producing small sausage-shaped particles from paste-like materials - pressing materials through perforations in matrix element with shearing elements matrix
Inventor: MANZEI JUERGEN
IPC: C02F11/12
Filed: 1990-04-28
Abstract: Device for forming small sausage shapes from paste-like materials consists of a flat matrix (12) which contains a large number of perforations (14) through which the paste is pressed by a pressing device. The matrix (12) has a central element (16) with a shearing element (20) on at least one of its flat sides. The perforations (14) penetrate the central element (16) and the shearing element or elements (20), and at least one shearing element (20) can slide on the central element (16). The central element (16) may have a shearing element (20) on each of its flat sides. Systems are provided for sliding the shearing elements (20) relative to the central element (16). The shearing elements have a thinner cross-section than the central element (16) and each of the perforations (14)  contains a recess (26) which becomes narrower in the direction m from the shearing element (20) towards the central element (16). USE/ADVANTAGE - For forming small sausage-shaped particles from pastes which have been dried to a pre-determined residual moisture content. Blockages of the perforations (14) in the matrix (12) are prevented by a simple design modification.
Patent DE-4018397-A1 (DE)
Inventor: SCHOLZ JOACHIM
IPC: G01C19/72
Filed: 1990-06-08
Abstract: For measuring absolute rotations in several spatial directions with the aid of interferometers, one interferometer is required for each spatial direction. It is proposed to feed a device consisting of several interferometers from a common light source (110) but, in time-division multiplex mode, not to switch the light paths but only the phase modulation impressed on the light. The output signals of the interferometers are detected and evaluated by means of a single detector (130) and evaluating device. <IMAGE>
Patent DE-4019996-A1 (DE)
Title: Ultrasonic cleaning and sterilising of fruit or vegetables - basket contg. fruit or vegetables is moved around to allow mixt. possible ultrasonic energy to reach surfaces to be cleaned
Inventor: EREL DAVID
IPC: A23L3/015
Filed: 1990-06-22
Abstract: Equipment for ultrasonic cleaning and sterilising of the surfaces of fruits and vegetables removes all types of soiling and impurities such as mud, and bacteria as well as chemical pesticides, herbicides and fungicides. - Fruit and vegetables are arranged in a frame located inside a cleansing tank filled with water so that all surfaces of the foodstuffs are subjected to the max. ultrasonic energy to effect the desired level of cleaning.
Patent DE-4020917-A1 (DE)
Title: Through-flow appts. for in-vitro cultivation of living material - includes culture vessel and controlled nutrient- and gas flow supplies connected outside vessel, nutrient soln. level control etc.
Inventor: BINAS BERT DR
IPC: C12M3/00
Filed: 1990-06-30
Abstract: For in-vitro cultivation of living material (9), e.g., cells, organ fragments, etc., for pharmaceutical, medical and biotechnical applications, a continuous flow appts., a culture vessel receives the material together with nutrient soln. and gas.  A reservoir of nutrient is provided and supplies soln. via a line which combines with the gas line, with a controller for discrete nutrient addn. and a gas regulator. The soln. level in the vessel is controlled, with at least one outlet to a collecting vessel. USE/ADVANTAGE - Simple arrangement, e.g., for interaction of living material and, e.g., hormones.
Patent DE-4024284-A1 (DE)
Title: Packaging material supply mechanism for packaging machine - has reel magazine above packaging machine, with reels fed by vertical conveyor out of magazine
Inventor: FOCKE HEINZ
IPC: B65H19/12
Filed: 1990-07-31
Abstract: The supply mechanism deal with packaging material on reels and has a reel magazine (23, 24) set above the operating stub (36, 39), pref. above the packaging machine. - The reels (13, 14) can be supplied by a vertical conveyor (50) from the magazine to the operating stub. The reel are pref removed from the magazine by an intermediate conveyor and then transferred to the reel conveyor.
Patent DE-4030460-A1 (DE)
Title: Control of developed photographic film processing appts. -  passing film through unit with bar code identification entered on film joining strip
Inventor: DEUTSCH RAINER DIPL ING
IPC: G03D15/00
Filed: 1990-09-26
Abstract: An automated photographic film processing machine has the film transferred from a spool (1) over a roller (2) and tensioning unit (4), around a second roller (7) leading to a sensor section (8). Photodetectors (9, 10) identify the feed transport holes in the film an points at which sections have been bonded together. The film then passes over drive rollers (13) and forms a magazine loop (33). The film passes out and over a marking station (31), where a bar code identification is formed on the bonding tape between films. ADVANTAGE - Avoids errors in identificators of films for processing.
Patent DE-4031043-A1 (DE)
Title: Laser beam transmission and reception device -  regulates feedback power using measured intensity of reflected beam
IPC: H04B10/2587
Filed: 1990-10-01
Abstract: A laser beam is directed onto a spaced target (2) which has a retroreflector (9). A photodetector (11) for the reflected laser beam (10) is positioned adjacent the laser transmitter (20), the measured intensity of the reflected laser beam being used to regulate the power of the laser transmitter. Pref., the feedback regulation circuit (5, 6, 7) incorporates limitation of the max. transmitter power level. USE - Ranging, position measurement or bidirectional information transmission.
Patent DE-4034489-A1 (DE)
Title: Magazine for transparencies - is injection moulded with dividing, face and longitudinal walls and has external selective segment indicators
Inventor: BRAUN JUN CARL
IPC: G03B23/04
Filed: 1990-10-30
Abstract: At least one face (2) or longitudinal wall (3) of the magazine has a number of external selective segment indicators (6) located next to one another, and either permanently or removably fitted. Segments (6') for number formations can have a coloured or similar coating. Such segments protrude out of the external surface of the face wall, or they can be inset. They are surrounded by a frame forming a field, and in company with the frame can be of one-piece structure with the face or longitudinal wall of the magazine. The selective segment indicators form groups, each group having an equal or different number (6) within it. USE - As a magazine for transparencies.
Patent DE-4036569-A1 (DE)
Title: Screwing tool with motorised head - has opening for nut extending into channel completely through head
Inventor: LANG HERBERT
IPC: B25B21/00
Filed: 1990-11-16
Abstract: A screwing instrument with a motorised head has a receptacle for a screw or a nut, or it may be used to cut threads. It has a channel (11) coaxial with the rotation axis of the head (7) continuing through the head (12) from an initial opening or receptacle (8) to an outward opening (13) on the opposite side of the head (14). A rotating tool can be inserted coaxially in the receptacle (8), and the channel (11) has a crown cog wheel (6) inside the head which drives the head in conjunction with another gear (5) on the end of the motor spindle. USE/ADVANTAGE - Can screw nuts on to a threaded rod for any distance.
Patent DE-4039716-A1 (DE)
Title: Stabilising tissue sample by embedding in acrylate] compsn. - by low temp. polymerisation with redox system, useful for immuno or histochemical test
Inventor: WOLF EDUARD DR MED
IPC: G01N1/42
Filed: 1990-12-13
Abstract: In the prepn. of a tissue sample by stabilising embedding, the sample is impregnated with a substance contg. acrylate(s) and polymerisation is carried out below 0 deg.C using a redox system. Polymerisation is carried out at -10 to -15 deg.C. The sample is impregnated with a mixt. of a component (I) based on methyl methacrylate (MMA) and a component (II) based on butyl methacrylate (BMA). The redox system consists of benzoyl peroxide (III) and N,N-dimethyl-p-toluidine (IV). Before mixing the MMA and BMA are destabilised with Al2O3 and redried with CuSO4, whilst (III) is dried ca. 1-2 days at ca. 37-40 deg.C. (I) is prepd. by mixing 2 wt.% (III) with MMA and (II) by mixing 2 vol.% polyethylene glycol (PEG) (mol. wt. 400) and/or 1 vol.% (IV) with BMA pref. by adding these to 5 vol.% BMA at 4 deg.C and then adding the remaining 92 vol.% BMA. The destabilised and dried MMA and BMA, (I) and (II) are stored at 4 deg.C. USE/ADVANTAGE - The samples are suitable for immuno- or histochemical investigations (claimed). The method largely avoids affecting tissue properties and causing damage. It makes the samples strong enough for producing thin sections (ca 0.5-1 micronend
Patent DE-4041829-A1 (DE)
Title: Hydraulic shock absorber with piston and piston rod - has two damping fluid compartments with compensating compartment between and includes damping valve
Inventor: BECK HUBERT
IPC: F16F9/32
Filed: 1990-12-24
Abstract: The hydraulic, adjustable shock absorber has a piston (2) fixed to a piston-rod (3) and which divides the operating cylinder (1) filled with damping fluid into two compartments (4,5). A damping-valve (7) cooperates with a gas-filled compensating compartment and is positioned to one side of the operating cylinder (1) and has at least one duct (10). The part of the damping valve (7) housing (8) facing the shock absorber is connected to the shock absorber by a hollow piece (9) in the form of a screw (9a) going through the housing (8). At least one collar-type fitment (11) screws the shock absorber pipes (1) telescopically together. ADVANTAGE - The damping valve is fitted and the separate parts of the shock absorber are assembled without soldering or welding.
Patent DE-4101593-A1 (DE)
Inventor: GEBHART SIEGFRIED
IPC: B28B7/08
Filed: 1991-01-21
Abstract: In an apparatus for making building blocks, especially paving stones, stone blocks and formwork blocks, having a material box, a moulding box and a vibrator device with compacting rams, there are fastened to a main frame (1) main cylinders (3), to the vertically operating main piston (32) of which the moulding box (7) is fastened via a supporting frame (33). The material box (4) is arranged on the main frame (1) above the moulding box (7). The compacting rams (8) are arranged under the moulding box (7). Traction cylinders (5) connectable to the compacting rams (8) are arranged on the main frame (1) via locking elements (16, 34, 36). The moulding box (7) together with the compacting rams (8) and a ram support (10) are connected to the main frame (1) and the main cylinders (3) via the supporting frame (33) so as to be rotatable through at least approximately 180 DEG . 
<IMAGE>
Patent DE-4105194-A1 (DE)
Title: Actuator for IC engine valve - involves supporting rocker arm between two points with swivelling adjustment
Inventor: KLOSTERMEIER HEINRICH
IPC: F01L13/00
Filed: 1991-02-20
Abstract: The actuator for a lift valve (2) in a combustion engine has a rocker arm (3) supported on a hydraulic play compensator (6). The support point (8, 8') of the rocker arm relative to the compensation element can be altered by swivelling or sliding the compensator between the guide limits (9). ADVANTAGE - Simple method of varying the lift characteristics of an engine valve.
Patent DE-4111381-A1 (DE)
Title: Valve seat for internal combustion engine - has plastically deformable coating for running=in period
Inventor: HAAS ECKHARD
IPC: F01L3/04
Filed: 1991-04-09
Abstract: Coating for valve in the cylinder head of an internal combustion engine is applied in the region of the valve disc seat surface and/or the valve seat surface and is plastically deformable. The coating can be applied electrolytically as Cu, Sn, Zn, Pb or Al, or can be plasma sprayed. It can be a plastic or organic coating e.g. of Teflon or graphite. Wear resistance is confined to the running-in stage of the engine. ADVANTAGE - Full output of the engine is obtd. in the initial stages
Patent DE-4119798-A1 (DE)
Inventor: VOSS ADOLF PROF DIPL ING
IPC: B01F29/64
Filed: 1991-06-15
Abstract: The invention concerns a process and device for the production of biogas by fermenting a ferment medium in a container with continuous mixing. Sufficient ferment medium (8) is introduced into the cylindrical container (1) to partly fill the container, and the ferment medium mixed by causing the container (1) to execute a rotational and radial motion so that the particles near the wall of the container are displaced longitudinally.
Patent DE-4122152-A1 (DE)
Title: Twin-jaw hydraulic grab - has rams turning components to which jaws are secured by locking devices
Inventor: NAGLER JUERGEN
IPC: E02F3/413
Filed: 1991-07-04
Abstract: The twin-jaw grab for a hydraulic excavator has a ram for each jaw, mounted on a central beam, the jaws being detachable from the beam and rams. Each ram (5) actuates a component (6) turning on a central axis, and to which the jaw (2) is secured by a locking device. Each component can have a key portion at each free end, engaging in a mating groove in the jaw. USE/ADVANTAGE - Simple and rapid changing of jaws on hydraulic excavator.
Patent DE-4124153-A1 (DE)
Inventor: HIESTAND KARL
IPC: F16J15/44
Filed: 1991-07-20
Abstract: In a device (1') for transferring a medium from a fixed first component (41) into a rotating second component (51), an annular chamber (61) being provided between the components (41, 51) and a radial sealing gap (62, 63) being provided on both sides of the said chamber, the annular chamber (61) is bounded completely or partially in the axial direction by the first component (41) on one side and by the second component (51) on the other side. The two components (41, 51) form an inherently rigid constructional unit, allowing both sealing gaps (62, 62) to be adjusted in the same direction by an axial displacement. In addition, a control chamber (71) can be connected to the annular chamber (61). 
<??>This configuration makes it possible to adjust and set the two sealing gaps (62, 63) together and thus to adapt their width to the particular requirements. 
<IMAGE>
Patent DE-4125544-A1 (DE)
Title: Vehicle locking appts. - has key with rechargeable battery, rectifier and coil, inductively coupled to transmitter coil in lock by ferromagnetic shaft of key
Inventor: WOLFRAM BERTHOLD DIPL ING
IPC: G07C9/00
Filed: 1991-08-01
Abstract: The lock (2) has a transmitter coil (22) supplied with an a.c. or pulsed d.c. voltage. The key (1) contains a rechageable battery (3) which is coupled to a receiver coil (14) via a rectivier (15). The battery supplies power to a load (13) which may be a remote control circuit for locking and unlocking the door locks. The shaft of the key to made from ferromagnetic material so that the transmitter coil and receiver coil are inductively coupled when the key is inserted into the lock. The key may be inserted into the vehicle ignition lock, allowing the battery to be charged slowly. ADVANTAGE - Improved inductive coupling between lock and key allowing rise of small, concentrated magnetic fields.
Patent DE-4131320-A1 (DE)
Inventor: HELFFENSTEIN KURT
IPC: B01D17/02
Filed: 1991-09-20
Abstract: Sink-float separators which operate by gravity must, after waste disposal, be refilled to the extent that no separated materials pass into the outlet in the subsequent operation. Complete refilling with potable water is cost-intensive. According to the invention, it is therefore proposed to introduce only in the vicinity of the clean water outlet a small restricted refill volume which effectively prevents the exit of separated materials. The boundary is preferably formed as a barrier which surrounds the clean water outlet. The refill pipe then opens into the clean water outlet channel downstream of this barrier. When the separator is started up again, the separation operation immediately recommences since the barrier prevents the exit of the separated materials. <IMAGE>
Patent DE-4134335-A1 (DE)
Title: Swarf-removing cutting tool - has surface at cutting edge altering cross=section of swarf
Inventor: EHRENBERG HENRY
IPC: B23B27/14
Filed: 1991-10-17
Abstract: The tool has one or more cutting protrusions (5), each with a tip (40) and a cutting edge (11) formed between rear and side faces. A swarf guide face (29) is provided for the edge at the cutting side. One or more surfaces (10) are provided at the cutting edge and which alter the cross-section of the swarf. The guide face can contain a recess (30) with two or more surfaces at the periphery sloping downwards from the cutting edge, while there are no rising flanks adjacent to the recess. USE/ADVANTAGE - Simple swarf-removing cutting tool. Swarf can flow smoothly away without tangling etc.
Patent DE-4135322-A1 (DE)
Title: Pushchair for infant - has front wheel mounted on swinging arm to enable pushchair to be compactly folded
Inventor: HAECKER KLAUS
IPC: B62B7/06
Filed: 1991-10-25
Abstract: The multi-purpose baby's pushchair has a triangular underframe with the base of the triangle at the rear end. The pushchair has one front wheel and two rear wheels. The front wheel (11) is mounted on an arm which is rigidly attached to the frame but can, when required be swung through 180 deg so that the front wheel lies between the two rear wheels. The wheels are attached to the frame be quick-action clamping hubs (48). The seat for the baby is mounted on an upper frame (8) which can be folded flat against the lower frame (22). USE/ADVANTAGE - Baby's pushchair which can be compactly folded when not in use.
Patent DE-4135747-A1 (DE)
Title: Multichannel sound signal transmission procedure with interference correction - using introduced time difference between transmitted signal preceded by defined phase difference used to provide matrix signals
IPC: H04H20/47
Filed: 1991-10-30
Abstract: Associated channels are supplied with signals at the transmission side exhibiting a defined time difference, the corresponding time difference between the signals compared at the reception end to allow compensation of transmission errors. A defined phase difference, independent of the frequency is provided between the input signals prior to the introduced time difference with the sum and difference values for the phase-shifted signals obtained at the transmission end, the interference sections of the matrix signal subjected to muting at the reception end. USE/ADVANTAGE - Allows transmission via channels subject to interference for digital speech or music transmission.
Patent DE-4137342-A1 (DE)
Inventor: MUELLER FRIEDRICH
IPC: F24S10/75
Filed: 1991-11-13
Abstract: A solar collector (12) has a housing (14) and an absorber pipe (30) which is connected to distributor lines (18) via supply lines and removal lines (20) which extend through openings (22) in the housing (14). In order, in the case of a temperature-dependent change in length of the distributor lines (18) in their axial direction, to reduce the mechanical stress on the supply lines and removal lines (20), each supply line or removal line (20) has at least one bend (38) to improve the elasticity. Furthermore, the absorber pipe (30), after entering the housing (14), is arranged in a fixing-free manner over a given length which corresponds to ten to fifteen times the diameter of the absorber pipe. <IMAGE>
Patent DE-4139281-A1 (DE)
Title: Grinding machine with horizontal support-guides - has V-shaped guide-ledges on sides of guides facing tools-support
Inventor: LINKE JUERGEN
IPC: B24B41/02
Filed: 1991-11-29
Abstract: The machine tool has a movable tools-support (7) on a horizontal guide and a vertically movable machine tool spindle. The horizontal guide consists of two parallel support-guides (5, 6) on both sides of the tools-support (7). Each of the parallel support-guides (5, 6) has an upper and an under V-shaped guide-ledge (10-13) on the sides facing the tools-support (7). The tools-support has prismatic-shaped guide-elements (14-17) moving on the guide-ledges.
Patent DE-4139702-A1 (DE)
Title: Screeding beam for road finishing machine - has two-part frame, one part carries tamper beam and is adjustable, to adjust tamper direction
IPC: E01C19/42
Filed: 1991-12-02
Abstract: The beam is fastened to a road finishing machine via a holder, pivoted about an axis, at right angles to the direction of travel, to achieve a setting angle (alpha). It has a device with frame, which contains an oscillating driven tamper beam (9), and a levelling plate (4). The frame is divided in direction of travel. The two frame sections (3, 6) are connected via a pivoted axis (5), which extend across the direction of travel. The frame section carrying the tamper beam, can be pivoted backwards through a certain angle. ADVANTAGE -Allows better compression of road finishing material.
Patent DE-4142619-A1 (DE)
Title: Lightweight frame for bicycle and tricycle - has thin-wall tubular construction strengthened by pressed groove patterns.
Inventor: KAISER WILHELM
IPC: B62K19/06
Filed: 1991-12-21
Abstract: The main frame extends from the saddle support (13) to the front fork support (12). The frame is made from metal tubes and the cross-sectional shape is varied along the length of the frame to strengthen it for the different stresses along the length. The strongest shape is derived using four grooves to form a cross pattern. The front fork fitting has a support sleeve (12) attached to a flattened end of the main frame by a slot and weld fitting. The crank support is welded to the bottom of the main frame curve. USE/ADVANTAGE - For bicycles and tricycles,with lightweight design for sufficient load-bearing capacity.