baber/WOPTO huggingface dataset:
Patent DE-2423750-A1 (DE)
Title: Workpiece holder for use with a laser beam - suction holds e.g. semiconductor slice on porous glass plate transparent to beam
Inventor: DUEMLEIN ALFRED
IPC: B23K26/70
Filed: 1974-05-16
Abstract: A workpiece holder uses suction to hold the piece on a mounting plate while it is exposed to a laser heam, the bottom part of the mounting plate being connected to a suction unit. The mounting plae is made of porous glass. The porous glass is pref. filter glass and the mounting plate is pref. located in a holder which is fixed in a detachable manner to a transport table. Used e.g. for the formation of a grid of scores on a semiconductor slice which will subsequently be broken into semiconductor chips. The life of the mounting plate is greatly increased cf. other materials as the glass is transparent to the laser beam and the surface of the glass therefore suffers no scoring; this means that frequent surface grinding and/or replacement of the plate is eliminated.
Patent DE-2428374-A1 (DE)
Title: 2-(3-Amino-2-hydroxypropylthio)-benzothiazoles - with hypotensive activity
Inventor: HIBINO TOSHIHIKO
IPC: C07D277/74
Filed: 1974-06-12
Abstract: Benzothiazole derivs. of formula (I) and their acid-addn. salts are new:-(where R1 and R2 are H, lower alkyl, NO2, halogen, opt. substd. amino, COOH, lower alkoxycarbonyl or di(lower alkyl)carbamoyl; R3 and R4 are H, lower alkyl or alpha-(lower alkyl)benzyl, or NR3R4 is a 5- or 6-membered heterocycle). Cpds. (I) are hypotensive agents without significant beta-adrenergic blocking side effects.
Patent DE-2429475-A1 (DE)
Title: HV power cct. breaker with earthed drive - has insulating rod with tubular face section coupling to moving actuator drive
Inventor: NOACK DIETER
IPC: H01H33/02
Filed: 1974-06-20
Abstract: The moving actuating part of the high voltage power circuit breaker is connected to a drive, moving the power interrupting elements via a cylindrical insulating rod (8) of glass fibre reinforced plastics, having at least on the outside a layer with organic, relatively flexible plastics fibres embedded into the plastics material impregnating the glass fibres. In the region of the rod faces a sleeve, overlapping the rod tubular wall, forms a power transmission element. The sleeve is positively connected to the rod by radially protruding parts, embedded into the flexible plastics layer and engaging recesses in the sleeve. If the breaker uses flourine containing quenching and/or insulating gas the plastics layer must be resistant to respective decomposition products.
Patent DE-2433795-A1 (DE)
Title: Noise-screening double or multi-skinned hollow wall - with intervening spaces filled with low elasticity-constant pressure absorber
Inventor: BSCHORR OSKAR DIPL ING DR
IPC: E04B1/82
Filed: 1974-07-13
Abstract: The object is to combine a small overall wall thickness with the softest possible elasticity of the intervening layer, or layers, in a wall designed for effective sound insulation and screening of disturbing noise sources. Surface element or panels are used in the skins of the wall, to form separated intervening spaces, the filling being of a material acting as pressure absorber with a low elasticity constant; this may be a substance in vapour-fluid phase, in a state of equilibrium in environmental pressure and temperature, or in gas-fluid phase. Euler's elements may be used as pressure absorber; or an air chamber - magnet system, with the positive elasticity characteristic of the sealed air chambers compensated by the negative characteristic of magnetic attraction; or a piston and cylinder system with material in the critical state.
Patent DE-2433869-A1 (DE)
Title: Ladder unit for climbing pitched tiled roofs - has hooked head fitting under the tile overlap and engaging batten
Inventor: HAAG ERICH
IPC: E04D15/00
Filed: 1974-07-15
Abstract: The ladder unit is as long as the tile pitch and has a hooked head (5) which fits under the tile overlap (3a) and engages the head and support batten (2a) of the overlapped tile (3b). The unit is of ladder form with two verticals (9) and cross members (8) and features a concavity at the trailing end to form a foot support. Longitudinals and laterals are cut out in one piece and stiffening is provided by curving the longitudinals. Normally projecting and rubber lined support feet (11) are provided at the end. A handle (12) is provided at the head and rungs are provided with an anti-skid surface.
Patent DE-2434079-A1 (DE)
Title: Three-dimensional light steel lattice girder - with lower chord bars embraced underneath by trough-type clamping element
IPC: E04C5/065
Filed: 1974-07-16
Abstract: The light girder comprises at least one bar-shaped upper chord and two relatively and equally off-centre-line lower chord bars connected to the upper one by lateral spreader bars. On their sides facing away from the upper chord, the lower chord bars are embraced by clamping units; these are formed by two or more lengthways spaced transverse shackles, approx. U-shaped, and by longitudinal bars fixed in the area of the open longitudinal edges of the shackles - the whole combining to form a trough-shaped enclosing element. The transverse shackles may be made of round bar steel, with the arms of the connecting crossbar corrugated lengthways. While readily transportable, this meets with the demands of reinforced concrete construction, and can be quickly and easily laid.
Patent DE-2437215-A1 (DE)
Title: Polyamide (or similar plastics) bearing box - suitable for bottom roll needle bearings for rolls of spinning machines
Inventor: LESSMEIER HANS
IPC: F16C35/04
Filed: 1974-08-02
Abstract: A bearing box of polyamide or similar plastics adapted to receive the bottom roll needle bearings for rolls of spinning machines, comprises a U-shaped lower part with a semi-cylindrical recess and a fitting upper part with a complementary recess. Both parts are provided with moulded-on clamping means and projections for securing the bottom roll needle bearing w.r.t. the bearing box. There are also projections and faces to secure the bearing box w.r.t. the bearing die. These "securing" actions prevent axial and angular displacements. The bearing box can be combined with the bearing to form an integral constructural unit, without recourse to additional assembling means.
Patent DE-2443490-A1 (DE)
Title: Switch which operates with MOS transistors - is used to switch through first signal to user when second signal is present
Inventor: HOFMANN RUEDIGER DR
IPC: H03K17/687
Filed: 1974-09-11
Abstract: The second signal is applied by an input stage to the control input of a switching transistor and the first signal is applied to a terminal of the controlled path of the switching transistor. There is a capacitor which connects the transistor control input with the switching path terminal. The controlled path of a separating transistor (AT) is inserted between the input stage and the control input of the switching transistor (S). The transistor (AT) is blocked when the first signal (S1) is applied to the switching transistor (S). There is a capacitor (CK) which is connected to the transistor (S).
Patent DE-2443999-A1 (DE)
Title: Frequency multiplier using T-network - has three inductances with dynamic and fixed capacitors to complete the unit
Inventor: HOFFMANN HEINZ DIPL ING
IPC: H03B19/16
Filed: 1974-09-14
Abstract: The circuit arrangements denote alternative ways of generating harmonic frequencies from a fundamental, using a T-connection unit with a series inductance (L1) and a parallel capacitor (C) connected to the output of a dynamic capacitor (C. dyn). In one embodiment of the invention, a diode (D) is connected in parallel with the input (1), and the output (2) of the dynamic capacitor is connected to two inductances (L2, L3) in series, the T-junction capacitor (C) connected to the mid-point of these inductances. The primary coil (L1) is in parallel with the two inductances. The emergent frequency appears at the output terminal (3) of the third inductance (L3).
Patent DE-2448783-A1 (DE)
Title: Fluidic oscillator with crystal registering frequency - in which oscillation crystal seals one outlet of the oscillator
Inventor: HOUBEN HEINZ DR ING
IPC: G01H3/06
Filed: 1974-10-12
Abstract: The fluidic oscillator has an arrangement for using it to determine the mixture ratio of gases by measuring the sound velocity of the gas mixture by means of the oscillator frequency. The oscillation crystal (15) closes one outlet (10) of the oscillator, which itself is connected to the inside of the space containing the gas mixture through a diffuser (6). This leads to two external return (11, 12) and two main channels (9, 10) one of which is connected to a suction pump (14) while the other, containing the oscillation crystal, leads through a preamplifier (16) to control equipment (18). An oscillation frequency dependent on the length of the return channels and the signal propagation velocity is generated, the oscillation frequency being an expression of the density of the gas flowing into the oscillator.
Patent DE-2454660-A1 (DE)
Title: Temperature monitor for electrical machine - has expansion thermometer on rotor expanding bellows to drive contact against slip-ring
Inventor: GUENTNER HERWIG DIPL ING
IPC: H02K11/25
Filed: 1974-11-18
Abstract: The temperature monitor, for electrical machine's rotor has an expansion-type thermometer (4) mounted on the rotor and connected via a hydraulic fluid pipe (5) to an expanding bellows arrangement (6, 7) which is also on the rotor. The moving end of the bellows carries a contact (10) that moves radially with the bellows as the temperature of the rotor increases or decreases. A slip ring (11) is mounted on the machine's bearing plate (13) opposite the moving contact. The moving contact touches the slip ring when the rotor temp. exceeds a given limit and in doing so operates e.g. switching and indicating circuitry.
Patent DE-2454972-A1 (DE)
Title: Silver olefin oxidation catalysts - supported on specified carriers and promoted esp. with barium
Inventor: HAYDEN PERCY
IPC: B01J23/68
Filed: 1974-11-20
Abstract: Catalysts for prepg. alkylene oxides by oxidising corresp. olefins contain Ag which has been pptd. onto a preformed. porous. refractory carrier by impregnating the carrier with a soln. of a labile Ag salt, the carrier having specific surface (BET) 0.04-10 m2/g; apparent porosity >=20% (Hg absorption method) and mean pore dia. 0.3-15 mu (Hg porosimetry method), and/or the Ag particles exist as discrete particles of equiv. dia. >10000 angstroms attached to the carrier, and the catalyst contains an additional quantity of Cu, Au, Zn, Cd, Hg, Nb, Ta, Mo, w, V or pref. Cr, Ca, Mg, Sr and/or esp. Ba, over that incidentally present in the carrier as impurity or binder. Processes for prepg. ethylene oxide and propylene oxide using these catalysts are also claimed.
Patent DE-2460163-A1 (DE)
Title: Safety belt stress limiting device - longitudinal portion with cut outs is ripped apart when predeter-mined stress exceeded
Inventor: SCHIMKAT HARALD DIPL ING DR
IPC: B60R22/28
Filed: 1974-12-19
Abstract: stress limiting device for safety belts in cars, which breaks down when a certain predetermined energy loading occurs, is constructed such that it has a strap portion (7) which extends in the longitudinal direction with a series of slots arranged in a row behind each other onto which a bolt type arrestor section (5) rests in order to transfer to stress. The device is ripped apart when the loading on the stem sections between the cut out sections exceeds a predetermined level.
Patent DE-2461460-A1 (DE)
Title: Degreasing and dyeing tanned skins in one operation - dyestuff added to solvent being absorbed during washing
Inventor: KOENIG ROBERT
IPC: D06P1/92
Filed: 1974-12-24
Abstract: For the degreasing of tanned skins and their subsequent dyeing, the skins dried after the tanning process, are loaded into the washing machine and after they have been wetted with the solvent, the dyestuff, dissolved in water or pre-emulsified, is added. The washing process is then continued until the fat has been satisfactorily removed, until the dyeing of the skins is satisfactory, or the dyestuff is exhausted. The skins are then dried with hot air. Process is simpler, cheaper and quicker than degreasing and dyeing in separate operations.
Patent DE-2461762-A1 (DE)
Title: Fertilizer and seed distributor - has central wheel-supported container with two rows of outlets in bottom
Inventor: DREYER HEINZ DIPL ING DR
IPC: A01C7/08
Filed: 1974-12-28
Abstract: The container (1) is fixed to a chassis (2) mounted on wheels (3). In the bottom of the container (1) are two parallel rows of outlets which can be closed or opened in varying degrees by means of slide-pieces. Above the roof-shaped floor of the container are metering-wheels. Inside the container (1) on the floor (8) is an intermediate wall (11), adjustable in position by means of bolts (13) and holes. The pipes (16) through which the seed or fertilizer passes are connected by means of air-ducts to a fan (18) which is driven by means of a drive-shaft (19). The pipes (16) are mounted on a crosswise girder (20) extending on both sides of the container (1).
Patent DE-2500041-A1 (DE)
Title: Train derailment prevention system - Uses radial acceleration forces to apply brakes via central potentiometer
Inventor: HELLER FRED-HARALD
IPC: B61F9/00
Filed: 1975-01-02
Abstract: The system produces an analogous signal to apply a retarding force proportional to the vehicle inclination angle or central acceleration force when negotiating a bend, although the same idea could be used to transmit a warning signal to prevent sailing boats capsizing. The vehicle departure from a normal horizontal plane is detected by a potentiometer whose left or right tension drop is fed to a differential amplifier and a threshold value switch to actuate the brake mechanism. On reaching a lower speed, the vehicle assumes the horizontal plane a d the brakes are automatically released. A stereo potentiometer and a rapidly rotating heavy metal ring is provided to stabilise the main potentiometer.
Patent DE-2503804-A1 (DE)
Title: Energy giving hydraulic transmission - with high pressure reservoir to store braking energy for reversible wheel pump-motor
Inventor: RUNNELS-MOSS NOEL
IPC: B60T1/10
Filed: 1975-01-30
Abstract: The vehicle is driven by a power unit which operates at a constant speed, for maximum efficiency. It drives a hydraulic pump to feed a high pressure hydraulic reservoir. The wheels are driven by a reversible pump/motor which draws power from the high pressure reservoir and returns the fluid to a low pressure reservoir. In the braking sequence the fluid to a low pressure reservoir. In the braking sequence the fluid is pumped back the high pressure reservoir so that a minimum of energy is lost. The system is especially useful for commercial delivery vehicles and buses and taxis, which stop and start in rapid succession. The power unit can be coupled to the hydraulic pump by a simple clutch so that one pump/motor only is required for further simplification.
Patent DE-2504279-A1 (DE)
Title: Football game with adjustable football impact device - has shot transmission system to operate model footballer
Inventor: WEISS MARKUS
IPC: A63F7/24
Filed: 1975-02-01
Abstract: An original football game has a series of half solid rubber footballs with football profiles and of the same size as normal footballs attached to the front wall of the lower section of the game device and which are adjustable in position so that they may be struck by the foot of whoever is using the device in a volley type shot. A shot transfer system is used to transmit the effect of this ball impact to a model footballer within the game region, in order to direct a table tennis type ball at an appropriate goal.
Patent DE-2508172-A1 (DE)
Title: Baby feeding bottle with disposable flexible liner - having ventilating ribs on liner to permit collapse when emptied
Inventor: BARR ARTHUR CARL
IPC: A61J9/04
Filed: 1975-02-26
Abstract: The feeding bottle has a re-usable casing (10) with a ridged neck over which the teat (12) fits with a fastening collar (14) and a removable disposable liner (30) inside the bottle contains the actual feed. The liner (30) is equipped with at least one rib (60) on the outside extending over the rim of the bottle to form a gap between the bottle and the liner so that the zone between the bottle and the liner is evacuated, thus causing the liner to collapse and preventing air getting inside the liner. Pref. the rib (60) is made in one piece with the liner of the same material and extending over the complete length of the liner.
Patent DE-2520851-A1 (DE)
Title: State change detector using inductive or capacitive pickup system - has probe changing its switching state as wheel is rolled along path
Inventor: LEHNER PETER
IPC: G01D5/241
Filed: 1975-05-10
Abstract: The state of the probe is controlled by the position of a diec element or wheel(2) adjacent to it which is marked with a tapering wedge (1). The probe (7) can move in its working position, so that the time during which it is operated by the disc or wheel (2) has a circular inner wedge on the disc or wheel (2) has a circular inner edge and its outer edge approaches the centre of the disc as the disc rotates. As the wheel is rotated during measurement of a distance the probe is switched on and off and a series of pulses is produced whose frequency is proportional to the speed of rotation of the wheel.
Patent DE-2521306-A1 (DE)
Title: Hydrogen generator for cyclic thermochemical decompsn. of water - using tube aggregates contg. porous sintered carrier for promotor
Inventor: KOCH CHRISTIAN DR
IPC: C01B3/06
Filed: 1975-05-13
Abstract: Appts. of H2 generation by decompsn. of H2O by a multi-stage cyclic thermochemical process has several tube aggregate reactors, the number of reactors corresp. to the number of process stages, and, in these tubes porous sintered parts with a number of channels as carrier for the reaction promoter. The appts. permits the large scale operation of the cyclic process. Good utilisation of the process heat and ease of handling and control and of supplying and removing the reactants and prods. are other advantages.
Patent DE-2522356-A1 (DE)
Title: Torsion rod weight relief lid support - holds motor board of tape recorder in vertical plane for servicing
Inventor: ROSSMANN HEINRICH
IPC: G11B33/02
Filed: 1975-05-21
Abstract: The weight-relieving system is for the motor board of a tape recorder for help in swinging the board into the vertical plane during servicing. A pair of supports (2) are fixed, one on each side of the instrument case (1) and connected by a torsion rod (5). The motor board (3) is pivoted in a pair of bearings (4) located within the supports (2) and is attached at its centre to the middle of the torsion rod, which is appropriately prestressed according to the weight of the board. The torsion rod may be of rectangular section and engage with a support (6) with an appropriately shaped aperture to form a firm contact with the motorboard.
Patent DE-2523489-A1 (DE)
Title: Soldering frame for printed circuit boards - comprises parallel, elastic, non soldering steel wires as supports esp. for boards deforming under soldering temp.
Inventor: DOST WILLIBALD ING GRAD
IPC: B23K3/08
Filed: 1975-05-27
Abstract: Soldering frame for the transport of conductor plates or printed circuit boards, on which components are mounted, through a flow soldering appts., esp. plates or boards which deform under the influence of the solder temp. The novelty is that parallel, equispaced, elastic, non-soldering steel wires are clamped in the gap in the frame and act as supports for the plate or board which is held by clamping elements. The steel wires are pref. prestressed by springs on one side of the frame, esp. using cup springs while the other ends of the wires are held in clamps, nuts being mounted on threaded bolts to adjust the prestressing force. Useful in large conductor paths using materials which can distort to such an extent due to the high solder temp. that faulty joints can be obtd., to ensure that the plates or boards cannot distort, e.g. the foils used in miniature crossbar switches.
Patent DE-2524138-A1 (DE)
Title: Cylindrical end closed vessel produced seamlessly - by axial and radial pressure on drawn tube of material difficult to deform
Inventor: BOERNER ROLF ING GRAD
IPC: F01N13/18
Filed: 1975-05-30
Abstract: A cylindrical pressure-tight vessel with closed ends to which closable end pieces are attached is made from a material that is difficult to form e.g. stainless steel, in the form of drawn tube. Two sections at a distance from the ends and from each other are formed into necks of reduced cross-section by radial and axial pressure in several work stages. Each tube section is first subjected to radial pressure centrally to which axial pressures directed towards each other are combined then the tube necks are traversed. The process can be used to form vessels, e.g. exhaust silencers, which are normally fabricated by welding half-round sections together in a more economical manner and with a certainty of forming a complete seal.
Patent DE-2524829-A1 (DE)
Title: Heart action recognition device for ECG - has complex system of "AND" and "OR" lattices
Inventor: THOMA HERWIG DIPL ING DR
IPC: A61B5/04
Filed: 1975-06-04
Abstract: The device for recognition of commence ment of heart action in an electrocardiogram (ECG) has an ECG amplifier, and more than two band pass filters attached to the output of the amplifier with a trigger circuit for each filter. A monostable multivibrator is connected to each trigger stage as Or and AND lattices and an OR lattice to open the appropriate AND lattice. A further AND lattice connects to the output of the previous AND lattice. LEads connect the inverting output of these AND lattices to the inputs of the previous AND lattices. A further Or lattice is powered by one of the outputs of the earlier AND lattices.
Patent DE-2528358-A1 (DE)
Title: Photo polymerisable compsns - contg a ketone or aldehyde photo catalyst and a phosphite accelerator
Inventor: BAUMANN NIKLAUS DR
IPC: C08F2/50
Filed: 1975-06-25
Abstract: Ethylenic, unsatd. photopolymerisable cpds. are photopolymerised in the presence of >=1 binder (I); a photoinitiator (II) and an accelerator (III). (II) is a ketone or aldehyde of formula: where R is a satd. opt. substd. (cyclo)-aliphatic 1-12C hydrocarbons gp.; an opt. substd. 6-14C mono- or polycyclic aryl; an opt. substd. N, S or O, contng. heterocyclic or an opt. substd. 7-15C mono- or polycyclic aralkyl and R1 is H; and opt. substd. 6-14C mono- or polycyclic aryl or an opt. substd. N, S or O contng. heterocyclic. (III) is a phosphite P-(O-Z1)3 where Z1 is H, a satd. or unsatd. opt. substd. 1-24C (cyclo)aliphatic hydrocarbon, an opt, substd. 6-14C mono- or polycyclic aryl, an opt. substd. 7-15C mono or polycyclic aralkyl or an opt. substd. N, S or O heterocyclic where each Z1 may be the same or different, and are opt. bonded to one another and only one Z1 is H. The catalyst and initiator are used in photography and reproduction processes. They are storage stable in the dark (with the photopolymerisable monomer) and are resistant to oxygen.
Patent DE-2530729-A1 (DE)
Title: Pneumatic hammer or punch - uses square section outer tube to provide air passages to inner cylinder
Inventor: UEBEL PHILIPP
IPC: B25D17/00
Filed: 1975-07-10
Abstract: The pneumatic hammer or punch has an inner cylinder (2) formed from a length of circular cross-section tube. The cylinder (2) is a force fit inside a tube (1) of square cross-section so that four separate longitudinal passages (4, 6) are formed between the two tubes (1, 2). Compressed air, supplied through the pipe (18), passes through the automatic change-over valve (21) into the space (4) and through the hole (7) forcing the piston (13) upwards. When the piston (13) has passed the holes (9) the air above the piston is compressed and the air below the piston escapes through the holes (10 and 16). The valve (21) changes its position so that air flows into the cylinder (11) and drives the piston down.