baber/WOPTO huggingface dataset:
Patent DE-2927437-A1 (DE)
Title: Power semiconductor protection circuit - includes inductance coil connected into supply between semiconductor and load (OE 15.10.79)
Inventor: KALNY FRIEDRICH ING
IPC: H02H9/02
Filed: 1979-07-06
Abstract: The power semiconductor protection circuit gives switch-on, switch-off control of loads, esp. electric storage heater appliances, by means of pulse packets switched along the supply lines to the load(s) via the semiconductor. The arrangement is designed to eliminate damaging effects of the associated electrical properties of the supply lines from acting on/to power semiconductor(s) as evidenced in earlier associated arrangements. There is an inductance coil which is connected into the supply line between the power semiconductor and the load consumer. The inductance coil has an inductance that shifts or displaces the cut-in frequency relative to the transient response of the supply line.
Patent DE-2932777-A1 (DE)
Title: Exhaust silencer for pneumatic machines - has porous inserts of increasing dia. with gaps to prevent back pressure
Inventor: SIMSHEUSER KARL-FRIEDRICH
IPC: F01N1/08
Filed: 1979-08-13
Abstract: The silencer has a casing with cylindrical sections (111,112,113,114) which increase in diameter from the inlet to the outlet (14). Each section contains a cylindrical insert (12,12',12") of porous sound absorbing material. Each insert has a larger dia. than the preceeding one. It is enclosed in a metallic sleeve with projecting ribs (116,116') which hold it off the internal lip of the casing immediately upstream of it. Its diameter is slightly less than that of the casing section it fits in. The resulting gaps (117,116,117',116',117") between and round the porous inserts allow flow to be maintained without a rise in pressure as the porous material becomes choked.
Patent DE-2936925-A1 (DE)
Title: Large scale hot dip zinc coating line - uses workpiece handling system which includes gripper tongs on hoists attached to trolleys on conveyor rails
Inventor: BRATKE ERICH
IPC: C23C2/34
Filed: 1979-09-12
Abstract: The plant includes rows of pretreatment tanks for large or bulk parts, which can thus be degreased, picled, rinsed, and coated with flux. Above the plant are one or more overhead conveyor rails (27) fitted with workpiece transport trolleys (39). Each trolley (39) includes a hoist fitted with adjustable gripper tongs employed to lower workpieces into the various baths for pretreatment and then into molten zinc. Small workpieces are pref. placed in a basket carried by the gripper tongs; and the plant pref. includes a centrifuge for removing excess zinc from the small parts. An automatic and reliable plant for mass prodn. of workpieces.
Patent DE-2948502-A1 (DE)
Title: Testing contents of opaque sealed deformable containers - uses measurement of dimensional change caused by variation of external forces
Inventor: SCHIEF ALFRED DR ING
IPC: G01F17/00
Filed: 1979-12-01
Abstract: A method of testing the fluid contents of opaque sealed deformable containers is applicable for quality control, esp. in the manufacture of motor cars. The containers may be rubber boots contg. lubricant for back axle shafts connected to each linked shaft component by clamping bands. Forces acting externally on the container are varied in a controlled manner and the associated dimensional change measured to give an indication of the contents of compressible gas and incompressible fluid. The forces may be varied by applying pressure in a chamber or by reducing the pressure in a vacuum chamber in which the container is placed. Alternatively, the forces may be applied by a mechanical arrangement, e.g using attached weights. The dimension change may be measured mechanically or optically.
Patent DE-3000815-A1 (DE)
Title: Swarf removal system for carburettor drilling process - includes compressed air injection in different directions at different times during drilling process
Inventor: BAUCKE LEO DIPL ING DR
IPC: B23Q11/00
Filed: 1980-01-11
Abstract: The method of drilling holes in carburettors includes a system for removing swarf, grit etc. from the interior of the regions being drilled. This material must be completely removed from the calibrating openings, or incorrect operation of the carburettors will occur after installation. The operating cycle for drilling the holes includes forcing compressed air at various intervals and in different directions according to a preset programme. (4PP).
Patent DE-3000827-A1 (DE)
Title: Air conditioning system for operating theatre or pharmacy - uses hydrobromic acid or bromide soln. to clean circulated air in ozone or active oxygen injected circuit
IPC: F24F8/24
Filed: 1980-01-11
Abstract: The system has the air fed to the room circulated through a cleaning chamber contg. an aqueous hydrobromic acid solution or a bromide solution. This solution is circulated around a path allowing ozone or active O2 injection and it is returned to the cleaning chamber via a cleaning filter. The solution is sprayed into the chamber at the top for mixing with the air which flows from the bottom to the top of the chamber. The cleaning solution is supplied with bromide or hydrobromic acid and with ozone or active O2 and water for maintaining the required conc and ozone level, during its circulation. The appts. required conc and ozone level, during its circulation. The appts. is also claimed.
Patent DE-3001153-A1 (DE)
Title: Uniform pieces of nut-filled sweetmeat - made by applying die to sweetmeat drop inside ring
Inventor: SOLLICH HELMUT
IPC: A23G3/20
Filed: 1980-01-15
Abstract: Pieces of sweetmeat of uniform size are made by a machine which applies a drop of a free running confectionery on a base where it is limited in its spread by a ring. After nuts, almonds, raisins, cokernuts etc. have been sprinkled over, a stamp is applied to spread the drop up to the ring before it is allowed to solidify. Sweetmeats, e.g. caramel, is dispensed through a nozzle in drops on a base with a detachable lining. A ring with a lining or PTFE and with a coolant channel is placed around the drop and pieces of almonds are sprinkled on it. A curved stamping die is then lowered over it to spread the drop to a uniform domed shape. This produces pieces of sweetmeat of the same wt. and the same shape, thereby facilitating the subsequent packaging by machine.
Patent DE-3002541-A1 (DE)
Title: Modified stitch plate for double needle overlocking machine - guides threads into common needle hole for improved seam-locking
IPC: D05B73/12
Filed: 1980-01-25
Abstract: The stitch-plate of a double-needle overlock sewing machine has curved guide surfaces opposite and below the left-hand stitch forming tongue which direct the last-formed stitches into the right-hand needle-hole when the stitches are drawn off the tongue by withdrawal of the finished workpiece from the machine. From this position, the chain-stitch tail can be drawn backwards against the material-feed direction and secured neatly in the leading edge of the seam on the next workpiece. This arrangement eliminates the untidy seam commencement with projecting threads which is produced with standard double-needle stitch-plates.
Patent DE-3004191-A1 (DE)
Title: Foil roll dispensing container - has U=section bracket with flanges overlapping, holding housing with swivel flap contg. roll
Inventor: HELING PAUL
IPC: B65D83/08
Filed: 1980-02-06
Abstract: The container (10) is intended for holding a roll (14) of foil material (15) rotatably held in a housing (11) so that the end (24) of the foil can be pulled out through a dispensing opening (23) which is at least partly closable by a swivel (about A) flap (19). The rear wall of the housing is formed by the web (29) of a U- section bracket (12) which is releasably secured to the housing and has its flanges (30,31) at least partly overlapping the top (17) and bottom (16) walls of the housing. At least one portion (e.g. 30) of the bracket may have provision for fixing it to a wall. The housing may be secured to the bracket via snap-in fixtures.
Patent DE-3012050-A1 (DE)
Title: Acid pickling and cleaning of steel - where smut adhering to steel after pickling is removed or loosened by immersion of steel in hot, dil. nitrate soln.
Inventor: HEIMBERGER WALTER DR ING
IPC: C23G1/00
Filed: 1980-03-28
Abstract: A steel is pickled in acid, but is then left with an adherent coating, which is insol. in water. The steel is therefore next washed in water, and immersed in hot, very dil. aq. nitrate soln., so that the coating either falls off the steel, or can be easily wiped off with water and soft tools without mechanical damage to the surface of the steel . The aq. nitrate soln. pref. contains 1-2% nitrates, and is heated to above 85 deg.C; and when new, the soln. may be activated by adding a small amt. of a soluble ferric salt. The nitrate soln. is pref. acidified by adding HNO3, without letting the pH fall below 2.0. When steel is pickled, e.g. in HCl or H2SO4, a bright surface is not obtd. due to an adherent residue or coating left after pickling. The nitrate bath removes this residue so a bright, silvery surface is obtd. on the steel.
Patent DE-3014981-A1 (DE)
Inventor: SEMSCH WENDLAND DIPL ING
IPC: B65D/
Filed: 1980-04-18
Abstract: The bottle intended as a disposable package consists of an upper part (2) with a bottle neck and a rolled-in rim (4). The edge (7) of the lower part (1) is merely folded over, whereas the edge (11) of the upper part (2) is bent outwards. The inner coatings (5) are sealed. The closure is effected by an aluminium cap (10) with a tear-off tab, which cap is pressed over the beaded rim (4) of the bottle neck. This two-part package for liquids has the disadvantage of a great weight, but not of expensive manufacture. It also avoids manufacturing the metal bottle integrally and the complex manufacturing method therefor. <IMAGE>
Patent DE-3019380-A1 (DE)
Title: Power valve for IC engine - has valve controlled by diaphragm in inlet to enrich fuel flow
Inventor: DOUGHERTY MICHAEL
IPC: F02M7/20
Filed: 1980-05-21
Abstract: The power valve is for use with a carburettor for an internal combustion engine. The carburettor has a fuel reservoir, with a valve body and cooperating valve. These open and close related passages leading to the induction passage. This supplies additional enriching fuel flow. A pressure responsive diaphragm has an associated actuator and is exposed to a source of engine vacuum of varying magnitude to, at times, move the valve.
Patent DE-3030009-A1 (DE)
Title: Swivelling office chair with positioner - has seat supported on square frame on rails, which can swing about horizontal axis
Inventor: BEER HERBERT
IPC: A47C3/03
Filed: 1980-08-08
Abstract: The chair has a seat (1) supported on two parallel angle sections (2) attached to its undersurface. Each angle section has its vertical flange welded to a horizontal tubular support (8) fitted with a plastics bearing bush (9). The bushes fit over horizontal shafts (7) which project from a horizontal member (6) fitted to the vertical column (17) on which the chair swivels. The seat is able to swing through a small angle about the horizontal transverse axis (10) of the shafts. The seat is locked at the desired angle of inclination by a threaded handle (22) which screws onto the end of a clamping bolt (26). Slotted clamping plates (12) are fitted to each side of the vertical flanges of the angle sections. These clamping plates are pressed against each other by distance pieces (26,26') on the clamping bolt (21) when the handle is tightened.
Patent DE-3034540-A1 (DE)
Title: Push button switch esp. microswitch - has stirrup shaped actuating lever esp. with one resilient arm
IPC: H01H13/14
Filed: 1980-09-12
Abstract: A push-button switch, esp. microswitch, has a push-button (3), which is pressed from a first to a second switching position by a pivoting switching lever (1). This lever is stirrup-shaped, pivots about an axis (5) outside the switch (3) and is acted upon at one end (9) by an actuating force, while the opposite end (8) of the stirrup presses on the push button. When the lever is actuated, this second end (8) always travels through a distance which exceeds that from the first to the second switched position. Preferred material for the pivoting lever is an acetyl copolymer. This arrangement enables the switch to be constructed with comparatively relaxed tolerances but nevertheless always to operate reliably.
Patent DE-3040795-A1 (DE)
Title: Conveyor band track with several straight conveyor bands - makes or removes dumps of coal and includes transfer station, consigning station and throw-off point
Inventor: KOELBL HERBERT
IPC: B65G15/24
Filed: 1980-10-30
Abstract: The conveyor band track is used esp. for making dumps of coal or coke or for their removal and also is used for the dry production of gravel or sand etc. The installation includes a number of straight conveyor bands, a transfer station between an arriving and a removing conveyor band, a consigning station, and a throw off point with the transfer station equipped with a transfer frame as well as a transfer trestle attached on it. The transfer frame (6) is made as a moving frame with at least three moving frame legs (8) positioned at an angle to each other in plane view and each being equipped with running gear (9). This running gear can be adjusted on the moving frame legs (8) round vertical axes (10) and can also be fixed at a pre-set adjustment.
Patent DE-3042071-A1 (DE)
Inventor: BACHOFEN FELIX H
IPC: H02B13/065
Filed: 1980-11-07
Abstract: The device has a temperature-compensated low-pressure warning switch (1) which closes when the gas density in a part of the high-voltage switching installation falls below its nominal value. The warning switch is connected in the supply circuit of a signal relay (5) which produces either a warning signal or causes the gas to be refilled when it is operated. A level-measurement switch (3) which is connected in series with the warning switch (1) opens as soon as installation gas which has condensed in a sump in the installation has accumulated, and thus prevents the signal relay (2) responding unnecessarily. A low-pressure switch (2) which is connected in parallel with the said elements and responds at a lower density than the warning switch, switches the installation off, via a relay (6), as a function of the presence of condensate, as soon as the density falls below the lowest permissible level, which is lower than the nominal density. <IMAGE>
Patent DE-3110292-A1 (DE)
Title: Piston for internal combustion engine
Inventor: WIESER RUDOLF DR
IPC: F02F3/12
Filed: 1981-03-17
Abstract: The object of the invention is to create a "heat-tight" piston for internal combustion engines. This is achieved in that the end face wall of the piston is formed by a thick-walled quartz glass disc - possibly also by another ceramic disc -, which is pressed into a high strength steel ring and is thereby subjected to compressive stresses. The use of quartz glass gives an insulation material with a low coefficient of thermal conductivity, low coefficient of thermal diffusion, low coefficient of thermal expansion and very high compressive strength. The thick-walled insulation disc - as shown especially in fig. 2 - allows the combustion space to be largely integrated into this. In this way the heat losses in the combustion sequence are greatly reduced and - even with lower grades of fuel - a speeding-up of ignition and combustion is achieved. This is important particularly for vehicle high-speed diesel engines, in which only very short time intervals are available for the combustion sequence. On the other hand, the proposed solution is also of interest for large pistons, because it can obviate the need for the expensive piston cooling hitherto used for these. <IMAGE>
Patent DE-3122661-A1 (DE)
Title: Specimen testing apparatus
Inventor: MARX GERHARD
IPC: G03F7/30
Filed: 1981-06-06
Abstract: The invention relates to a testing apparatus for specimens such as printing plates, photoresist layers, printed circuits or similar materials which are superficially treated with a liquid under reproducible conditions. The apparatus comprises a bath in which a holding frame secures the specimen by means of one arresting disc on each of its sides to the base plate of the bath. To apply and distribute the liquid over the surface of the specimen, an application and distribution element is provided which can be moved to and fro and which is driven by a chain drive and has a coated surface which is arched convexly downwards. The holding frame is equipped with lifting wedges near the corners on the tops of its long sides. Disposed on each side of a holder of the application and distribution element is a roller which rolls over the tops and over the lifting wedges, and in the vicinity of the latter the application and distribution element is lifted off the specimen surface.
Patent DE-3123350-A1 (DE)
Title: Device for influencing the current and rotation speed of a universal motor in accordance with the phase-gating process
Inventor: HAEUSSERMANN JUERGEN
IPC: H02P25/14
Filed: 1981-06-12
Abstract: A device for influencing the current and rotation speed of a universal motor in accordance with the phase-gating process (method) has (in series with the R member and in parallel with the C member of a drive circuit which is constructed as an RC member) a circuit part (whose resistance value is dependent on the rotation speed of the motor) for an electronic switching element which is to be connected in the circuit of the motor. <IMAGE>
Patent DE-3124066-A1 (DE)
Title: Device for sealing the corner region of a spacer frame for insulating-glass panes
Inventor: LISEC PETER
IPC: E06B3/673
Filed: 1981-06-15
Abstract: The invention relates to a device for sealing the corner regions of a spacer frame for insulating-glass panes, having a nozzle for a sealant which is preferably capable of hot melting, and having a securing means for that corner of the spacer frame to be sealed. In the case of said device, the securing means is a ram which presses the corner of the spacer frame against an abutment, and the nozzle has, on its side directed towards that corner of the spacer frame to be sealed, a control side valve with through-passage channels for the sealant, which open out in the region of the open ends of the frame legs, and the control slide valve can be displaced back and forth during the sealing procedure.
Patent DE-3127426-A1 (DE)
Title: Levering-off tool, in particular for extracting the brake shoes from the calliper in motor-vehicle wheels
Inventor: SCHMITTER ALFRED
IPC: B25B27/02
Filed: 1981-07-11
Abstract: A levering-off tool for extracting the brake shoes in motor-vehicle wheels is to be provided, which has a nose (6) capable of insertion into a brake-shoe eye, a back (7) capable of being mounted on the calliper, and a gripping lever (2), and permits comfortable actuation by hand. For this purpose, the nose (6) and the back (7) are located on a separate foot piece (1) on which is articulated the gripping lever (2) which is capable of pivoting in the levering-off direction until it strikes a stop (10). As a result of this construction of the levering-off tool as a toggle lever, repeatedly powerful impacts can now be exerted with the pivotable gripping lever (2) and even very tight-fitting brake shoes can be loosened relatively quickly. <IMAGE>
Patent DE-3131958-A1 (DE)
Title: Process for forming an anti-reflection coating on the surface of solar energy cells
Inventor: WHITEHOUSE DANIEL
IPC: H01L31/0216
Filed: 1981-08-13
Abstract: To apply an anti-reflection coating or dielectric coating to solar energy cells,   1. a vapour of metal halide or metal alkoxide alone or in combination with a reducing gas and 2. oxygen are applied from different sources to the heated surface of a silicon wafer, and the coating is formed thereby on the light-receiving side of the cell itself by oxidation.
Patent DE-3132289-A1 (DE)
Title: Process and device for preparing granular products from suspensions
Inventor: BILDJUKEWITSCH WIKTOR L
IPC: C02F11/13
Filed: 1981-08-14
Abstract: The invention involves the technology of processing a material into a granular product. The invention involves  atomising the suspension (1), feeding a heat transfer medium (4) in a helical stream into a zone which is situated below the atomising zone, drying the suspension (1) with the aid of the heat transfer medium (4) in cocurrent and in countercurrent thereto while at the same time separating the fine fractions (5) of the dried material by the cocurrent stream of the heat transfer medium (4),  ducting off the spent heat transfer medium (4), the heat treatment of the grains formed during drying in countercurrent to the specified heat transfer medium (4) during their helical motion downwards up to a temperature at which the required product properties are achieved, and ducting off the heat-treated material from the heat treatment zone.  The device for implementing this process comprises a chamber (3) which is designed so as to have a cross-section which varies with height, means (2) for atomising the suspension (1), which are arranged in the upper part of chamber's (3) which has the largest dimensions, means (13,27) for feeding in the heat transfer medium (4), which are arranged helically in the lower part of the chamber (3), the pitch and the diameter of the helix turns being designed to a variable with the chamber height and increasing in size in the direction towards the means (2) for atomising the suspension (11). The invention can be used in the heat treatment of mineral suspensions, for example of chalk and cement raw material muds or ore concentrates and for processing wastes in various branches of production. <IMAGE>
Patent DE-3134676-A1 (DE)
Title: Valve
Inventor: HANSSEN OLAV KJELL
IPC: F16K11/052
Filed: 1981-09-02
Abstract: A valve has a housing with two inlet openings (4, 5) and at least one outlet opening (6) and a plate (9) by means of which both inlet openings (4, 5) can be separately closed. The plate (9) is connected in articulated fashion to the housing by means of a flexible component (10) in a region situated between the inlet openings (4, 5) and has a rigid disc capable of withstanding the pressure in a fluid flowing through the housing. Fluid flowing into the housing through an inlet opening (4 or 5) presses the plate (9) against the other inlet opening (5 or 4) in such a way that this opening is closed and backflow through it is prevented. When there is no flow of fluid through the inlet openings (4, 5), the plate (9) is held in a position between the inlet openings (4, 5) by the component (10) forming a hinge, a position which it also assumes when fluid flows simultaneously through both inlet openings (4, 5). <IMAGE>