baber/WOPTO huggingface dataset:
Patent DE-4035048-A1 (DE)
IPC: B27L5/00
Filed: 1990-11-05
Abstract: A device serves for cleaving or slitting preferably wood. It has a narrow tool, in particular a circular saw blade (15), which possesses cutting elements and produces a gap of finite width in the sawn article (10). The tool and the sawn article (10) are moved in a feed direction (30) relative to one another. A cleaving element (20) is arranged directly behind the cutting elements in the feed direction (30) of the sawn article (10). A profiled piece (12) separated from a sawn-article remainder (13) by the gap is thus bent out of the gap plane (11) away from the sawn-article remainder (13). A deflecting device (27, 28) is arranged at a first distance (L1) from the cleaving element (20) and exerts a force (F1) on the surface (44) of the profiled piece (12) facing away from the gap plane (11). A supporting device (40 to 42) is arranged at a second distance (L2) from the cleaving element (20) which is smaller than the first distance (L1). The supporting device (40 to 42) exerts a force (F2) on the surface (45) of the profiled piece (12) facing the gap plane (11) (Fig. 2). 
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Patent DE-4035628-A1 (DE)
Title: Improved dimension control of mechanically structured silicon@ substrates - using two=part system for surface layer to position junction accurately for use as etch-stop layer
Inventor: WILLMANN MARTIN DR ING
IPC: H01L21/3065
Filed: 1990-11-09
Abstract: PN-junctions are formed in, pref. p-type, Si substrates, especially as stop-layer for anisotropic etching of structures in Si, whereby a single crystalline Si layer is formed on a single crystalline substrate of opposite conductivity type. The Si layer formed features 2 parts (21,22) of which the first layer (21) has a dopant concn. CD which is large compared with the dopant concn. CS in the substrate. The upper layer (22) is deposited epitaxially with a dopant concn. CE. The first part (21) is pref. formed by diffusion into the substrate (1), or by epitaxy. The dopant used pref. has a low diffusion coefft. i.e. As or Sb. USE/ADVANTAGE - The layer (21,22) can be very accurately defined by using a slow diffusing dopant. This makes the dimensions of the structure very precisely known, improving the reproducibility of the device. Used in the mfr. of mechanical sensors.
Patent DE-4036745-A1 (DE)
Title: Optical scanner e.g. detecting crack in glass bottle
Inventor: MARTIN STEFAN RICHARD
IPC: G02B26/08
Filed: 1990-11-17
Abstract: The scanner scans a light beam in a ciruclar path to detect defects in a circular object. The appts. includes an optical assembly (28) to deviate and focus a light beam into an elliptical focal spot, the assembly being rotated so the beam envelopes a cone. The assembly comprises at least one cylindrical lens (50,52), two small-angle wedge prisms (54), and annular wedge-shaped balance pieces (55) to provide dynamic balancing of the assembly. This minimises vibration during rotation. Light reflected by an object is then sensed by a photodetector. Both the prisms are of the same angle, with the angle of deviation adjusted between zero and about ten degrees.
Patent DE-4037247-A1 (DE)
Title: Frame for insertion in ground to inhibit growth of weeds - comprises set of guide rails and plates for assembly to form funnel shaped object
Inventor: WICHT WERNER
IPC: A01G13/02
Filed: 1990-11-23
Abstract: The frame consists of a kit of components for self assembly including guide rails into which plates are inserted. When assembled it forms a funnel shaped object which is let into the ground and anchored there by barbed spikes which are driven through reinforced holes around the top rim, and also through the middle of the object, into the ground. The holes are reinforced by backing plates under the rim so positioned as to direct the spikes on an inclines plane into the ground. ADVANTAGE - Lessens the arduous task of weeding around plants.
Patent DE-4037518-A1 (DE)
Title: Resin particles, useful as electrophotographic toners, etc. - has particles of condensn. polymer with size range 0.1-100 microns, narrow size distn. and high sphericity
Inventor: HOTTA YASUNARI
IPC: C08G63/685
Filed: 1990-11-26
Abstract: Resin particles (I) consist mainly of a condensation polymer (II) with mean particle dia. (D) = 0.1-100 microns, at least 70 wt.% of the particles in the range 0.5D-2.-D and at least 70% (no. average) with sphericity not below 0.7 (ratio short dia./long dia.). Process for prodn. of (I) comprises at least prodn. of micro-dispersion of (II) with mean particle dia. (d) not above 1.0 micron in a liq. medium and allowing the microparticles to coalesce, keeping uniform amts. of ions on the surface of the microparticles and counter-ions in the dispersion system. USE/ADVANTAGE - (I) are used as delustering agents, chromatographic supports, vehicles for drugs, powder paints, and toners for electrophotography and cosmetics, etc.. Also claimed are: toners for electrophotography contg. (I), with (I) having Tg not below 40 (pref. not below 60) deg.C. and softening pt. 80-150 deg.C., and such toners contg. colouring agents, pref. 1-25 wt.% pigments, esp. diazo-yellow pigments based on benzidine structures, magenta quinacridone pigments or phthaloycanine pigments.
Patent DE-4040196-A1 (DE)
Title: Vehicular heating installation with engine-independent heater unit - incorporates heat store supplied from fuel burner for augmentation of heating effect of engine coolant liq.
Inventor: HARINGS ROLAND
IPC: F01P11/20
Filed: 1990-12-15
Abstract: Warm air is supplied to the passenger compartment from the heat exchanger (2) of a conventional engine-coolant circuit. A liq.-fuel-fired heater (4) and a heat store (5) are introduced into the circuit with a circulation pump (3), and controlled by magnetic valves (MV1, MV2). Additional heat from the store (5) is supplied when required via a thermostatic valve (9) as a function of coolant temp. (TKW). Temp sensors (T1, T2) are provided at the heat exchanger outlet and heat store inlet. ADVANTAGE - Traffic safety and comfort are enhanced with rapid interior heating and/or windscreen de-icing or engine preheating.
Patent DE-4040520-A1 (DE)
Title: Transmission shaft made of iron alloy - with outer hardened and inner relatively unhardened layers
Inventor: FETT GREGORY A
IPC: B23P13/00
Filed: 1990-12-18
Abstract: A shaft transmitting a rotational movement is produced by casting a shaft preform of Fe with alloying material, heat treating to produce a predetermined microstructure, machining to produce the final shape and surface hardening to produce a hard outer layer with a relatively unhardened inner layer. Pref. the Fe alloy is heat treated to produce a pearlite, bainite or tempered martensite microstructure. The outer surface is hardened by induction hardening.  ADVANTAGE - Is cheaper to produce than a similar steel shaft. An iron alloy requires less working than a steel and can be easily cast while a steel shaft has to be forged.
Patent DE-4102217-A1 (DE)
Title: Retraction and extension mechanism for ball point pen - has spring catch which prevents inadvertent retraction
Inventor: HEGER FRIEDRICH
IPC: B43K24/08
Filed: 1991-01-25
Abstract: A writing instrument, such as a pencil or ball point pen, has a mechanism to extend and retract the lead or ball point. The lead holder or ink reservoir is extended against the force of a spring by depressing a push button (3) which can slide axially in the barrel (1). The press button (3) has a cylindrical body (31) with a finger (4) extending axially from its inner end. The finger has a radial projection which engages a slot in the barrel (1). A hook (41) formed at the end of the finger engages a projection (8) on the inside surface of the barrel wall. A leaf spring (9) presses the leadholder or ik receiver which in turn presses the hook (41) in its engaged position with the projection (8) holding the lead or ball point in the extended position. USE/ADVANTAGE - Ball point extension mechanism which cannot be inadvertently released.
Patent DE-4105169-A1 (DE)
Title: Box for transporting and dispensing tubular products - has fold-down front flap revealing dispensing opening, and sloping bottom to facilitate removal of next tube
Inventor: BROMUND VOLKER
IPC: A47F1/08
Filed: 1991-02-20
Abstract: The transport box and dispenser is for tube products. It comprises several tubes in a square packet (1) designed as the transport box and provided with a delivery opening (2) the size of at least one tube. After transport the packet can be used as a dispenser on a shelf whereby the delivery opening is folded down at the front to serve to as grip dish (4) so that at least one tube becomes visible and can be easily gripped. When this tube is removed another tube slides down into the grip dish. USE/ADVANTAGE - Simplified transport, display and handling of tubular products.
Patent DE-4106286-A1 (DE)
Title: Depth regulation of clad-breaker - involves adjustable and articulated carrier units
Inventor: BAUR HERMANN
IPC: A01B27/00
Filed: 1991-02-28
Abstract: The device is for depth-regulation of a clod-breaker. It has one carrier unit (118) for a rod (121) adjustable in height and with its end corrected to the clod-breaker beam (122) of an agricultural machine. A second carrier (105) has a hinge (112) for a distance-holder (106,107,108), a second hinge (111) for holding this second carrier (105) on the chassis, an articulation (116) for tilting the first carrier (118) and a second articulation (113). A spring (120) is located between a point on the chassis, and a fixing point (P) of the first carrier (118) in order to alter and angle of the carrier unit with the vertical. USE/ADVANTAGE - The device provides efficient depth regulation for a clod-breaker.
Patent DE-4111360-A1 (DE)
Inventor: DENZ HELMUT DIPL ING
IPC: F02M25/08
Filed: 1991-04-09
Abstract: The invention discloses a process for testing the performance of a fuel tank ventilation system for a motor vehicle with an internal combustion engine (10). The system has an adsorption filter (14) with a fuel tank breather (17) on its ventilation side, a connecting line (16) to a fuel tank (15) and a fuel tank ventilation valve (13) situated in a connecting line (12) between the engine's inlet manifold (11) and the intake side of the adsorption filter. The process is characterized in that a differential pressure (Dp) which is a measure of the difference in pressure between the ventilation and intake sides of the adsorption filter is measured, and the throughput of the adsorption filter is judged as unsatisfactory if the measured differential pressure exceeds a threshold value (Dp-SW). This process, as well as similar processes mentioned in the description, makes it possible for the first time to monitor the throughput of an adsorption filter in a fuel tank ventilation system. If the process is used in addition to conventional processes for monitoring the gas-tightness of the system or the performance of the fuel tank ventilation valve, for example, the overall performance of a fuel tank ventilation system can be monitored more efficiently.
Patent DE-4112772-A1 (DE)
Title: Treatment furnace for components - with valves between flow channel and furnace controlling amt. of gas into certain areas of furnace
Inventor: KUEHN FRIEDHELM DR ING
IPC: C23C8/00
Filed: 1991-04-19
Abstract: Continuous flow furnace for carrying out surface treatment of components (1) has inlet (4) and outlet (5) openings for the components as well as inlet (11) and outlets (6) for gaseous mediums transporting material for the treatment required. The medium enters a flow channel (7) and passes along the furnace to enter via controllable flap valves (10) into various areas of the furnace. USE/ADVANTAGE - For carburising, nitriding, carbonitriding etc. The control valves optimise the use of the treatment gas.
Patent DE-4114781-A1 (DE)
Title: Handling device for wet treatment of yarn hanks - has hanks held in frame which is transferred on rails from transport carriage to treatment vessel
Inventor: SCHMITZ JOHANNES DIPL ING
IPC: D06B5/12
Filed: 1991-05-06
Abstract: Hanks of yarn undergo wet treatment in an air-tight vessel which has guide rails on opposite sides, each of which supports a carrier bar. Rungs are fitted between the carrier bars. Two further guide rails and carrier bars with rungs can be placed near the bottom of the vessel. The carrier bars can slide out of the guide rails. USE/ADVANTAGE - Vessels used for wet treatment of hanks of yarn can be loaded and unloaded quickly.
Patent DE-4120637-A1 (DE)
Title: Sheet retainer for printed sheets - is actuated by suction controlled by rotating suction ring
Inventor: STEINBORN TILO DIPL ING
IPC: B65H29/68
Filed: 1991-06-22
Abstract: The printing machine is provided with holder for the printed sheets as they leave the printing cylinders. It is operated by suction and the application of the necessary suction is controlled by a rotating suction ring (3). The suction ring is driven by a square section shaft (1) and abuts against a pressure ring (11) which is held stationary by the bearing ring (8). The suction ring is connected to a source of suction through a curved slot (12) in  the bearing ring and as the suction ring rotates the sheet holder is alternately connected to and disconnected from the source of suction. The degree of suction is automatically adjusted by variation of the clearance (Y) between the suction ring and bearing ring.
Patent DE-4122584-A1 (DE)
Title: Measuring blood pressure using inflatable cuff - determining transit time of pulse wave between two measurement points and ascertaining blood pressure when transit time begins to change
Inventor: MUELLER ALBRECHT A C VON DR
IPC: A61B5/022
Filed: 1991-07-08
Abstract: An elastic inflatable cuff (1) and two measuring devices (5,11) are arranged next to an artery (2). In the measurement cycle, the cuff is inflated until the pulse is no longer detected by the measuring device (5), and the pressure in the cuff is gradually reduced. The cuff pressure is used as a measure of the systolic pressure existing when the pulse in the first measuring device is no longer detectable, or becomes detectable when the cuff pressure is released. The second measuring device positioned at a point on the arterial system further from the heart, is used to measure the transit time between the two measuring devices. The diastolic pressure is calculated from the cuff pressure which exists when the pulse transit time begins to change when the cuff is inflated or deflated. ADVANTAGE - Increased accuracy of automatic measurement.
Patent DE-4124828-A1 (DE)
Title: Printing gray-tone image as pseudo half-tone image - comparing half-tone values with threshold matrix values to generate outputs to printer unit to vary intensity
Inventor: HINZ HANS-DIETER
IPC: H04N1/40
Filed: 1991-07-26
Abstract: The printing of a gray tone image as a pseudo half tone image is achieved using a matrix of elements, in which each element has at least two different values of intensity. A comparison is made of gray tone of the image at a specific point. Threshold values are determined for two different matrices describing the intensity. The hardware used consists of two comparators (10,20) receiving the digitised half tone data. Threshold values are provided from memories (12,22) coupled to an addressing unit (14). The comparators generate outputs to control the darkness of a specific point by varying the size. ADVANTAGE - Improved resolution of gray tone print images.
Patent DE-4130089-A1 (DE)
Title: Damping for friction plate clutch in vehicle - has double action spring dampers in clutch plate assembly with two operating ranges
Inventor: ZENKER WALTER
IPC: F16F15/16
Filed: 1991-09-11
Abstract: The clutch plate assembly has a number of friction plates (22) on the outer edge, interdigitated with friction plates (24) attached to the flywheel assembly. The assembly incorporates dampers (30,31) braced between the hub- and outer ring structure of the plate. The dampers operate in both directions, with double pistons. The dampers operate at different forces and are provided with different strengths of return springs. This provides damping for idling speeds as well as normal operating speeds. ADVANTAGE - Compact construction, simple construction, improved damping range.
Patent DE-4130673-A1 (DE)
Title: Press to perforate and corrugate material strip - has advance rollers, with adjustable rotary positions, to place perforations relative to corrugations
Inventor: DANGELMAIER KARL DIPL ING
IPC: B21D28/36
Filed: 1991-09-14
Abstract: The perforations (25) are made in the strip material (1), and the relative distance (21) between the holes in the passage direction is matched to the overlap of non-changing surface areas (24) on the bending rollers (10,11), w.r.t. the formed sections (28) in the strip material (20). At least one advance roller (7) has projections, to engage in perforations in the material. These are drives for the punch, feed rollers and bending bodies. ADVANTAGE - Perforations are always placed in the same areas of the corrugations.
Patent DE-4131272-A1 (DE)
Title: Grinding and mixing mill with piston in outlet duct - which enables packing density of grinding elements to be varied.
Inventor: GEIGER ARMIN
IPC: B02C17/16
Filed: 1991-09-20
Abstract: A mixing mill has a rotor (3) which rotates inside a housing (2). The housing is loaded with the material to be ground and mixed together with the grinding elements (5). The outlet from the housing is formed by a cylindrical duct (10) in which a piston (11) is fitted. A piston fitted in this duct can be moved vertically by a rotatable nut (13) which engages a screw thread on the piston rod (12). The nut is rotated by a handle (16) to control the packing density of the grinding elements (5). The position of the piston is indicated by a device (17) and the packing density can be deduced from the piston position. USE/ADVANTAGE - Grinding and mixing mill with mechanism to control the packing density of the grinding elements.
Patent DE-4134584-A1 (DE)
Title: High speed ball bearing with separated balls - has partitions to prevent friction and increased temperatures
Inventor: FICHER GUERCHKO DR
IPC: F16C33/38
Filed: 1991-10-19
Abstract: The partitions can be plates (6), rods or balls between the balls (2) and connected rigidly either directly or indirectly to either the inner ring (4) or outer ring (5). The partitions can be fixed on the ring which turns.The size of the partitions depends on the size of the ball bearing and the distance between its rings with the partitions set in the area of the equator of the balls. The partitions can be radial, perpendicular or coaxial relative to the axis of the ball bearing. ADVANTAGE - The ball bearing runs substantially free of friction allowing higher speeds and long service life.
Patent DE-4136714-A1 (DE)
Title: Therapeutic and remedial massage device - has oscillating slide driven by electric motor with mechanism to vary frequency of oscillation
Inventor: GOCZOK AUQUSTYN
IPC: A61H19/00
Filed: 1991-11-07
Abstract: The therapeutic massage device, for massaging the interior of the female vagina, consists of a shaft (3) which is mounted on a slide (19). The slide moves on two parallel guide bars (21) and is driven with a reciprocating motion by two endless chains (13). Each chain passes around a driving sprocket (12) and a turn round sprocket (12). Each chain has a vertically projecting pin (17) which engages a slot (18) in the underside of the slide. The drive sprocket is driven from a variable speed electric motor which is equipped with a speed control device to enable the frequency of oscillation of the slide to be varied. USE/ADVANTAGE - Therapeutic massage device with mechanism to control the frequency of oscillation.
Patent DE-4140739-A1 (DE)
Title: Coating tiles with metalloid layer - using holding frame which passes round a track to a hot dip bath
Inventor: WARTENBERG ERWIN W DIPL CHEM D
IPC: C03C17/22
Filed: 1991-12-11
Abstract: The tile is held in a vertical position on a frame and heated to 490-550 deg.C before arriving above a hot dip bath contg. a boiling liq. with a decomposable metal cpd. The tile is dipped into the bath and held for at least three seconds before being withdrawn and cooled for 1-3 mm before being carried away into the surrounding atmos.. ADVANTAGE - Avoids the ugly clould-like effect in the coating.
Patent DE-4143234-A1 (DE)
Title: Extending table with table top supported on legs - has wall-side baseplate, stop, angled handle and plinth, handle straps and threads adjusting bolt.
Inventor: NAGEL ERWIN DIPL ING
IPC: A47B5/06
Filed: 1991-12-31
Abstract: The extending table has a table-top (1) supported on two legs (4) and resting, on the wall side, on a baseplate (2) and fixed to the wall by angle-pieces (5). The extending panel (3) stands at right angles to the baseplate, and rests against the wall (7) held by stop (6) and angled-handled (6.1) running inside the stop. The extending panel is folded down to rest in fold (1.1) on the table-top and (3.2) on the extending panel. The feet (4) under the table-top are adjusted by a threaded bolt mounted in the foot, and if necessary by a plinth (4.1). The extending table is fixed to the baseplate by externally invisible hinge-straps. USE/ADVANTAGE - The table can be extended by one person only, and extends the table area considerably without altering the height.
Patent DE-4201125-A1 (DE)
Inventor: RAO VELAGAPUDI MARUTHI
IPC: F23K1/00
Filed: 1992-01-17
Abstract: An insulated coil (20) of wire (23) of a prescribed length and number of turns is positioned to surround a linearly-extending portion of a metal or plastic fuel conduit (10) associated with an internal combustion engine or conduit transporting a burner gas to a stove burner or furnace. The coil core (22) may be electrically conductive wire which is surrounded by electrical insulation or liquid electrolyte (31) contained in plastic tubing (30) which tubing is coiled around the fuel conduit (10). The use of the device is shown to increase the miles per gallon of fuel performance of an auto and to improve combustion emissions. In gas burner applications, the number of days of use from a standard volume gas cylinder has been substantially increased when the device is used.
Patent DE-4201292-A1 (DE)
Title: Sliding ring seal with non-circular sliding ring - having integral entrainment regions
Inventor: WAGNER WERNER
IPC: F16J15/34
Filed: 1992-01-15
Abstract: A sliding ring seal has a sliding ring (1), with (esp. two opposite) raised entrainment regions (3) and intermediate lower regions at its outer periphery, and an entrainment housing (2) with axially and circumferentially extending claws (8) which grip the ring (1), the entrainment regions (3) and the claws (5) cooperating over entrainment faces (6) which run transversely to the circumferential direction and which slope outwardly w.r.t. the radial direction in the circumferential direction of the ring (1). The novelty is that, in axial (front) view, the sliding ring (1) has a non-circular shape for forming the entrainment regions (3) and the intermediate regions (4) which merge smoothly into one another, the entrainment claws (5) having an arcuate (esp. sickle-shaped) contour with an inner circumferential curvature at least as great as the gripped regions of the sliding ring (1). The sliding ring (1) is pref. an ellipsoidal ring made of ceramic, esp. aluminium oxide or silicon carbide, while the entrainment housing (2) is made of metal. ADVANTAGE - The design reduces the incidence of sliding ring fracture even when the ring is made of brittle ceramic material.