baber/WOPTO huggingface dataset:
Patent DE-3936589-A1 (DE)
Title: Adjustable inclined ball bearing arrangement - has inner and outer rims with concave spherical and/or conical surfaces
Inventor: GRACZYK WOLFGANG DIPL ING
IPC: F16C23/08
Filed: 1989-11-03
Abstract: The arrangement has an outer ring with a concave spherical outer surface in the housing of a fine mechanical device and an inner ring with two roller shoulders for the balls mounted on the shaft for which the bearing is provided. The outer ring (2) has a second concave spherical or conical surface (13) facing the shaft (3) and engaging a concave spherical surface (9) of a ball segment (8) mounted in the housing. The surface contact angles are between 20 and 70 deg. USE/ADVANTAGE - E.g. for astronomical telescope. Provides constant rolling properties irrespective of adjusted position.
Patent DE-3937711-A1 (DE)
Title: Tensioning straps and bolts for fixing lining frames - are used in mining and comprise symmetrical profiled flat bars
Inventor: HOPFGARTNER JOHANN DIPL ING
IPC: E21D11/28
Filed: 1989-11-13
Abstract: The tensioning bolts are for fixing steel lining frames in a mining gallery or a tunnel. They comprise hook ended bolts (20) which hook over the top rim (9.1) of the liner and are bolted through the eyes (10) of a U-shaped splicer (13) and the U-shaped end (12) of an angled profiled bracket (5). The bolt (20) is tightened by a back nut (18) and the tensioner nut screwed in contra motion. USE/ADVANTAGE - Instead of steel tubular rods, the brackets comprise symmetrical profiled U-formed flat bars.
Patent DE-4000585-A1 (DE)
Title: Location transmitting meter for athletes - damped structure transmits ultrasonic signal from electroacoustic transducer and has photoelectric transducer for light signal
Inventor: BRUNNER WOLFGANG
IPC: G01S11/16
Filed: 1990-01-10
Abstract: A transmitting meter measures the space coordinates of a point where the meter is located; it has an electro-acoustic ultrasonic transducer which transmits an ultrasonic signal, and a photo-electric transducer which receives or transmits a light signal and  has a piezo-vibrator in a housing; this vibrator is attached to the narrow end of a funnel so that this too is caused to vibrate ultrasonically. The funnel and/or piezovibrator is preferably made of natural or silicone rubber. ADVANTAGE - The product has a very low liability of interference with its signals. It is suitable for use on athletes.
Patent DE-4004514-A1 (DE)
Title: Ducted propeller for aircraft or ship - has axially sliding cones to vary effective areas of duct inlet and outlet
Inventor: INGELHEIM GRAF VON
IPC: B63H5/15
Filed: 1990-02-14
Abstract: An aircraft or ship is fitted with a ducted propeller (1). The duct (2) is so shaped that it has a cross-sectional area (A1) at the inlet, a cross-sectional area (Ap) in the plane of the propeller, and a cross-sectional area (An) at the duct outlet. Axially sliding cones (3,4) enable the effective cross-sectional areas of the duct outlet and inlet to be varied.  The aircraft or ship velocity is denoted by (V) and the velocity of the airstream in the plane of the propeller is denoted by (Up). The effective area (Ai) and (Ap) are varied so that when V is less than Up, Ai is greater than Ap and when V is greater than Up, Ai is less than Ap. USE/ADVANTAGE - Increased propulsive efficiency.
Patent DE-4006497-A1 (DE)
Title: Transporting roller for heated products in ovens - has cylindrical body and screw form transporting surface with larger pitch in centre than at ends
Inventor: COCHIUS RICHARD
IPC: F27D3/02
Filed: 1990-03-02
Abstract: The invention describes a transporting roller for an oven used for treatment of heated products.  The roller has a transporting surface (1) which consists of a raised screw flight running spirally around the body. The pitch of the spiral is smaller in the end sections than in the centre.  The roller is essentially cylindrical and has a transporting surface (1)which in the end areas is cylindrical and in the central section consists of a raised screw flight. USE/ADVANTAGE - The roller conveys products through an oven, has simple construction, long life and prevents damage to the product.
Patent DE-4006646-A1 (DE)
Title: New poly:perylene(s) useful in pigments, sensors
Inventor: NAARMANN HERBERT DR
IPC: C08G73/10
Filed: 1990-03-03
Abstract: New polymers contg. polyperylene units of formula (I) are claimed as are also; (i) new bis-napthalene acid imides of formula (II) which are oxidised to give the above polymers; and (ii) prepn. of imides (II) by reaction of 1,8-naphthalene anhydride with the corresp. diaminee (H2N-R-NH2). In the formula R = an aromatic residue. Oxidn. of imides (II) to give the polymers is pref. effected by; (i) oxidn. with O2 in a fluidised bed; or (ii) electrochemical oxidn., pref. using an (in)organic oxidiser with an oxidn. potential of above +0.5.
Patent DE-4006656-A1 (DE)
Title: Characteristic oscillation for TV or radio receiver detecting circuit - has pilot carrier signal amplitude modulated with TV tone signal
Inventor: KUEHN HANS-JUERGEN
IPC: H04N5/60
Filed: 1990-03-03
Abstract: The characteristic oscillation detector comprises an input filter stage (1) for filtering out a predefined band around the pilot signal frequency, a mixer (2) for down converting the modulated signal, a band pass filter (3) for filtering out side bands of the modulated signal a narrow band amplifier (6), and a detector branch (4 or 5) comprising a digital phase controller (40 or 50) with a narrow frequency range about the frequency to be detected, to produce a reference signal from the output (26) of the amplification detector. A digital demodulator (44, 54) demodulates the output of the amplifier (6) with the reference signal. A digital integrator (47 or 57) adds the pulses when the demodulator (44 or 54) output is a predefined value for longer than a predetermined time, and emitts and interdification signal. ADVANTAGE - Distortion free system, no need for external elements.
Patent DE-4009728-A1 (DE)
Title: Laser gyro base body mfg. method - has two partial bodies contg. channels forming polygonal optical path with mirror recesses along longitudinal axes
Inventor: HOFFMANN HARTMUT DIPL ING
IPC: H01S3/083
Filed: 1990-03-27
Abstract: The method involves forming a base body which has channels forming a polygonal optical path for a laser gyro. Two partial bodies (1,2) are manufactured. Each has a sepg. surface (3) into which channels (4-6) are let along the longitudinal axes. The partial bodies are joined at the sepg. surfaces. They are moulded into a shape from a meltable material. Recesses for deflection mirrors are formed next to the channels. ADVANTAGE - Very high accuracy formation of optical path through channels.
Patent DE-4009839-A1 (DE)
Inventor: TANAKA ATSUO
IPC: B32B15/08
Filed: 1990-03-27
Abstract: The invention relates to a metal foil laminated with a film of copolyester resin. It consists in laminating a biaxially oriented film of copolyester resin onto either or both faces of a metal foil coated with a single layer of hydrated chromium oxide or with a double layer comprising a bottom layer of metallic chromium and a top layer of hydrated chromium oxide, which has been heated to a temperature of from Tm-50 DEG C to Tm, Tm representing the melting point of the said film of copolyester resin. Application: production of metal cans undergoing new heating for crosslinking the varnish or alternatively undergoing a hot steam treatment for sterilisation.
Patent DE-4010170-A1 (DE)
Title: Laser gyro superposition and reading arrangement - has optical block with resonator enclosed by three mirrors reducing cost and size
Inventor: SALABERRY BERNARD LUCIEN CHARL
IPC: G01C19/66
Filed: 1990-03-30
Abstract: An optical block (1) has at least one optical resonator enclosed by at least three mirrors. Two oppositely moving laser waves are generated inside it to produce laser beams (15) via the output mirror. Two reflecting mirrors joined by a part (13) forming the output mirror support are placed in the beam paths so that after reflection the beams (19) are parallel to the surface of the supporting part and are incident on it near its periphery. USE/ADVANTAGE - For use with all types of laser gyro, esp. those with three movable piezoelectric mirrors, to enable cost and vol. reduction.
Patent DE-4012686-A1 (DE)
Title: Automatic air-injection equipment for toilet flushing - has valve rod with top stop sliding in float
Inventor: FOMINAYA AGULLO PABLO
IPC: E03D5/02
Filed: 1990-04-20
Abstract: The automatic air-injection equipment is for a hydropneumatic toilet-flushing system, having a vertical cowl (1) containing a moving float (2) with cone valve (4) and rod (3). An air-compression chamber (5) is formed between the float top and the cowl, the float sliding downwards with valve and rod on actuation to shut the valve. Air reaches the chamber via spaces between float and cowl. The float has an axial passage (8) in which the rod moves, the latter having the cone valve at the bottom and a stop (9) at the top end. The stop absorbs upward float movement when the top chamber is opened on actuation, thus generating a vacuum. This causes air to flow in and thrust the float downwards. The rod then moves downwards, shutting the tank off. ADVANTAGE - No water loss between end of flushing operation and shutting for refilling.
Patent DE-4015192-A1 (DE)
Title: Stackable supermarket, or luggage push trolley - has frame fastening points outside plane of load support surface
Inventor: EBERLEIN HERBERT DIPL ING
IPC: B62B3/18
Filed: 1990-05-11
Abstract: The push trolley has a horizontal frame (2) which is supported on at least three wheels (4). Two posts (5) are attached to the rear end of the frame and are inclined at a small angle to the vertical in the rearward direction. The upper ends of the posts are joined by a horizontal bar (6) which forms the handle. A load platform (8) is attached to the lower ends of the posts (5) and slopes upwards in the forward direction. The height of the load is limited by a U-shaped member with the ends of its shanks bent downwards and attached to cross-bars (14), which are fastened to the posts. The attachments (23) of the cross-bars lie behind the plane (22) of the shank of the load height limiter. ADVANTAGE - Safe transport of e.g. drink water even on slope.
Patent DE-4016600-A1 (DE)
Inventor: PRZYTULLA DIETMAR
IPC: B65D1/20
Filed: 1990-05-23
Abstract: The invention concerns a drum, made of plastics material, with a bung and with a carrying and transport ring (30) at the upper end. Located near the edge of the upper end (12), in a sunken bunghole housing (18), is a bunghole nozzle (16). To ensure that the drum empties completely when it is held upside down inclined at a slight angle to the vertical, a circular inclined plane (10) is incorporated in the upper end (12) of the drum on both sides of the bunghole nozzle (16), the plane being flush with the lower-lying plane of the base (20) of the bunghole housing (18).
Patent DE-4021230-A1 (DE)
Title: Alcohol prepn. - by hydrogenating carboxylic acid ester cpds. in presence of copper and zirconium contg. catalyst
Inventor: FURUSAKI SHINICHI
IPC: C07C29/149
Filed: 1990-07-04
Abstract: Alcohols are prepd. by hydrogenation of organic carboxylic acid ester cpds. (I) in the presence of a Cu/Zr catalyst contg. Cu, Zr and O and having a wt. ratio of Cu atom to Zr atom of 9/1 to 1/9, and in the presence of 2-100 equivs. of H2 per equiv. of ester gp.  in (I), at a temp. of 130-300 deg.C and a press. of 1-300 kg/cm2. USE/ADVANTAGE - The new catalyst is free from toxic components such as Cr, has high hydrogenation activity, is easily removed from the reaction medium e.g. by filtration, and gives high -yields of the desired alcohol. The process is esp. useful for prodn. of higher alcohols and dihydric alcohols, e.g.  esters such as di(m)ethyl oxalate, dipropyl oxalate, (m)ethyl glycolate, propylglycolate etc. are converted into ethylene glycol; succinic acid diesters give 1,4-butanediol; lactic acid esters give propylene glycol; glutaric acid diesters give 1,5-pentanediol; adipic acid diesters give 1,6-hexanediol; and straight chain, branched or unsaturated higher aliphatic acid esters with at least one ester gp. in an aliphatic acid with 6 or more C atoms give higher alcohols.
Patent DE-4021531-A1 (DE)
Title: Combination puzzle assembly - has hollow container with inner tubes for rolling through ball
Inventor: ZOELLER JUERGEN
IPC: A63F7/04
Filed: 1990-07-06
Abstract: The combination game comprises a hollow body of any shape e.g. cube containing interconnectable tubular-like elements which fit together individually to form a tube system through which a ball or the like can be rolled. To increase the degree of difficulty the pipe elements are non-transparent. The pipe elements have outlets in the hollow body and can contain a device which only allows the ball to roll in one or no direction. USE - As a game of skill and fun wherein the ball is rolled through by skilful turning and tilting of the hollow body.
Patent DE-4029032-A1 (DE)
Title: Electrical switch with snap action -  provided by leaf spring contact carrier having trigger point dome selectable in position over wide range
Inventor: SCHOENBOHM WILFRIED DIPL ING
IPC: H01H19/62
Filed: 1990-09-13
Abstract: The switch has a movable contact (10) mounted at the end of a leaf spring carrier (8). The latter is prescribed from strip metal and has a formed centre section (12) of U shape, the tip locating against a recess (17) in a bracket. The latter is secured to the main body by a screw (7) and also has a location for the end of the carrier. When the spring is displaced vertically downwards by the activator pressing against a dome sector (19), the contacts are open. When the actuator moves clear the stored spring energy is released to open the contacts with a snap action effect. ADVANTAGE - Flat construction suitable for use in microswitch.
Patent DE-4030656-A1 (DE)
Title: Thermometer for oil or water temp. in motor vehicle -  has contact bolt of high heat conductance material between hot conductor and pressure spring
Inventor: ACHT JOACHIM
IPC: G01K7/22
Filed: 1990-09-28
Abstract: The temp. measurer has a disc-shaped hot conductor (1) or NIC resistor for indicating instruments, e.g. bimetal or cross-coil. The lower end face (2) of the hot conductor contacts the base (3) of a pot-shaped housing (4) of electrically conductive material. The upper end face (5) is coupled to a plug pin (8) insulatedly fixed in the housing via a counter-bearing and a pressure spring (7). The counterbearing is in the form of a contact bolt (9) of material of high thermal conductivity and of a vol. at least twice as large as that of the hot conductor. This bolt can be of copper and three to five times as large as the hot conductor. The latter can have a dia. of 3 to 7 mm and a thickness of 1 to 3 mm. A contact layer (10, 11) of tin is pref. provided between the lower end face and base and upper end face and bolt. ADVANTAGE - Hot conductor can lie at lower temp. rivean with compresation for error tolerances arising from own heating with high loss.
Patent DE-4034766-A1 (DE)
Title: Assembly of shoes onto pistons of axial piston pump - involves closing shoe cup onto ball end in one operation by pressure of orbital rollers
Inventor: MANN REINHARD
IPC: F04B1/04
Filed: 1990-11-02
Abstract: The pistons of axial piston pumps are connected to the shoes sliding on the swashplate by a ball joint in which the cup recess of the shoe is formed onto the ball end of the piston. the piston is inserted against spring pressure into the bore of a sleeve (4) running in the bearings of a housing secured to the face of a three-jaw chuck. by virture of the sleeve bearings the piston can be held still when the chuck rotates. the shoe (2) is held in a collar chuck and can be accurately positioned on the ball end by a stepping motor axial feed drive. Forming rollers (6) on the chuck jaws can be radially forced against the shoe by actuation of the chuck drawbar as the chuck rotates. Pressure of the forming rollers accurately closes the shoe cup onto the ball end of the piston. ADVANTAGE - Replaces existing process on two difference machines. Improved productivity. Better joint quality and greater wear resistance.  Close control of axial play in joint.
Patent DE-4036697-A1 (DE)
Title: Drum-type coating machine - with exchangeable drums to suit different size charges e.g. of tablets
Inventor: DUNAJTSCHIK RUDOLF
IPC: A61J3/00
Filed: 1990-11-17
Abstract: In a coating machine for coating cores (tablets, granules, pellets, dragees and the like) with one or more coating materials, the cores are placed in a rotary drum into which stationary fittings (e.g. spray and cleaning arms) project, the drum being connected to air connections for producing air streams within the drum. - The drum (9) is mounted in an easily exchangeable manner in the coating machine (1). - Also claimed is a transport carriage for holding and assembly of drums for the coating machine.
Patent DE-4037001-A1 (DE)
Title: Chuck for tool esp. for drill - has shaft which can be entered in machine spindle, with sleeve which is aligned for acceptance of quick change
IPC: B23B49/00
Filed: 1990-11-21
Abstract: The length adjusting unit responds to the relative movement of the shaft (10; 10; 210) and the sleeve (17; 117; 217). A signal unit (19; 119; 219) is provided with its own current source, a signal transmitter and a switch in the current supply circuit of the signal transmitter, which is closed with the axial relative movement between the shaft and the sleeve. A least one part of the signal transmitter (21; 121; 221) is arranged outside and on the circumferential side of the shaft. A holding ring (42; 142; 242) is provided externally surrounding the shaft (10; 110; 210), which carries the entire signal unit (19; 119; 219) together with the current source (20; 120; 220), the entire signal transmitter and the switch (22; 122; 222). The switch plunger (32; 132; 232) of the switch arranged outside the shaft, with the axial relative movement between the shaft and the sleeve, is acted on and is operable directly (Fig 1) or indirectly (Fig 2,3) by means of the sleeve. USE/ADVANTAGE - Chuck for tool esp. drilling tool. Outer dia. of chuck if required can be reduced further.
Patent DE-4039112-A1 (DE)
Title: Automatic process for joining ends of thermoplastic ribbons - has four-station rotary table with ultrasonic welding and joint flattening press
Inventor: MESSERLI JUERG
IPC: B29C65/00
Filed: 1990-12-07
Abstract: A process for joining the ends of a thermoplastic ribbon which protrude from a cassette is carried out on a single machine with four work stations. At the first work station the cassette is placed in a holder and the ends (24, 25) are clamped in a cross over position. At the second station the ribbon is tensioned welded ultrasonically and trimmed.  At the third station it is tensioned again, pressed against an anvil and smoothed by ultrasonic heating. At the fourth station the ribbon is wound into the cassette and removed from the holder. The machine has a rotary work table (5) which indexes around its axis (8). Cassettes (3) are supplied from a conveyor (2) to an operator (1) who places the ribbon ends in clamps which can rotate and swing about an external axis as required by the various processes. USE/ADVANTAGE - An automated process is provided which does not rely on the skill of the operator to produce consistent joints and results in high quality printer ribbon cassettes.
Patent DE-4039456-A1 (DE)
Title: Vehicle switching relay - has insulating body open to adjacent sides for assembly of electromagnet components and contact carriers in spaces having longitudinal axes in different directions
Inventor: BORN SIEGFRIED DIPL ING
IPC: H01H50/02
Filed: 1990-12-11
Abstract: Resilient tongues (12) carrying the contacts (13) are secured by bars (e.g. 37, 39, 41) in a narrow space (32) bounded by the floor (15) and two walls (20, 21) of an insulating body (1). A wider space (25) beyond the intermediate wall (21) contains the coil (5), core (6) and armature (7). Openings (33, 34) into the respective spaces (32, 25) are provided in two sides of the body (1) adjacent to each other. The longitudinal axes of the drive space (25) and of the contact space (32) are pref. orthogonal. USE/ADVANTAGE - For switching in motor vehicles and machinery. Simple structure guarantees trouble-free electrical insulation between drive and contact system.
Patent DE-4039768-A1 (DE)
Title: Road-rail vehicle with two sets of wheels - has system for effecting change-over using extendable stabilisers
Inventor: SANDRO MALUTA
IPC: B60F1/00
Filed: 1990-12-13
Abstract: The road/rail vehicle has separate sets of wheels for the road and wheels for rails. The two sets of wheels can be alternatively lowered and raised. The vehicle has two stabilisers (SM) each fitted with a pair of extendable legs (17,19;18,20) with at least one of the stabilisers provided with a drive unit to create a sideways extension of the leg away from the vehicle. USE/ADVANTAGE - Vehicle which can transfer from the road to rail mode and vice versa within a confined space.
Patent DE-4103765-A1 (DE)
Title: Strain transducer for large cranes or shipping - has strain gauges on plates in centre of measurement body and protected by sealed chambers
Inventor: BROSA ERICH
IPC: G01L5/10
Filed: 1991-02-08
Abstract: A strain force detector with an overload region has lateral machined recesses approximately in the centre of the strain measurement body (5). This leaves one or more flat plates (3) to which strain gauges (4) are attached with adhesive. The strain gauges are connected in a conventional bridge circuit and are protected by sealed chambers (1,2) welded onto the plates and suitable for holding other components such as temp. sensors or microphones. The active measurement strips are pref. attached to a flat strengthened edge. USE/ADVANTAGE - For reliable operation in large cranes and shipping, including under water, for loads of up to hundreds of tons. Arrangement maintains its sealing better than conventional arrangements with O-ring seals.
Patent DE-4109295-A1 (DE)
Inventor: REICHINGER GERHARD
IPC: B65B27/10
Filed: 1991-03-21
Abstract: A process for the bundling and tying for example of electrical lines (1) to a cable harness using a band (2) has the following steps:     a) Forming a loop of greater than 360 DEG  around the cables (1). b) The band (2) is initially fixed with respect to the bundle below the sonotrode (14) so as to be stationary by a slide (8). c) The band loop is pulled downwards in the direction of the arrow (4) and held under tensile stress. d) The free end (5) and the band area above this are fixed by a slide (12) for the second time with respect to the bundle so as to be stationary. e) The endless band (2) is separated below the weld point (cutting blade 18). f) The band welding by the sonotrode (14) takes place between the slides (12) in a stress-free band area with full inclusion of the separation end (17).   <IMAGE>
Patent DE-4114666-A1 (DE)
Title: Pipe-laying device to replace old pipes - has guide head and basket with rotatable drilling head breaking up old pipe and enlarging pipe trench
Inventor: GEISERT JUERGEN
IPC: F16L55/165
Filed: 1991-05-06
Abstract: The guide head (11) which is to be pushed through the old pipe by the new pipe (26) widens out towards its rear end beyond the inner diameter of the existing pipe line. The basket (12) has at least two arms (14) to connect with the guide head. The dia. of the drilling head (28), which is rotatable inside the basket, is slightly larger than the OD of the new pipe line (26). A screw conveyor (29) adjoining the drilling head can be extended by headers and is guided in a similarly extensible screw sleeve pipe (33) which is connected to the basket (12). The front end of the guide head is placed in the existing pipe end so that the device becomes centred. As the device advances, the guide head breaks up the old pipe and the arms of the basket plough through the rubble and surrounding earth, which are then pulverised by the drilling head and discharged through the screw conveyor. USE - Breaking up old buried pipe and replacing it with new.