baber/WOPTO huggingface dataset:
Patent DE-2831844-A1 (DE)
Title: Aq. bright tin electroplating baths - contg. naphthyl substd. olefin(s) as dispersed brightener
Inventor: POPESCU GEB MICSUNESCU FRANCIN
IPC: C25D3/32
Filed: 1978-07-20
Abstract: Acidic aq. Sn electroplating bath which contains Sn2+ consists of: (a) H2SO4 and/or HBF4, (b) 1-20 g/- of an emulsifying or dispersing agent (V), (c) 0.02-0.7 g/l of a dispersed brightener of formula R1CH=CR2R3 (I). In the formulae, R1 is (II) or (III), x and y are each H, halo, OH, alkyl, or alkoxy, R2 is H or alkyl, R3 is COR4 when R1 is (II) or when R1 is (III)1 R4 is alkyl, Ph (opt. substd. by OH, 1-2 alkoxy, alkyl), pyridyl (opt. substd. by OH or alkyl)1 X'Y' are each H, halo, OH, alkoxy, alkyl, sulphoxy, CO2H, NH2 or amido or X'Y' are together as OCH2O. (II) may be nonionic (derived from ethylene oxide or propylene oxide), or cationic or ampholytic (both derived from imidazoline). The baths produce fine grained and semi-bright Sn electrodeposits, and have good throwing power.
Patent DE-2833784-A1 (DE)
Inventor: IWANAMI EIICHI
IPC: H03K3/354
Filed: 1978-08-02
Abstract: A high frequency oscillating circuit comprises an integrated circuitry composed of first and second lateral type transistors and a longitudinal type junction field effect transistor formed in a semiconductor layer of low impurity concentration epitaxially grown on a semiconductor substrate of high impurity concentration. An AT cut quartz crystal vibrator operable at a high oscillating frequency of more than several MHz is connected to the integrated circuitry, and a pair of capacitors are provided to adjust the vibrator oscillating frequency.
Patent DE-2835482-A1 (DE)
Title: Fuel injection timing signal - is produced by contoured disc turned by crankshaft to produce linear angle proportional pulse
Inventor: HAASE GERHARD
IPC: F02D41/36
Filed: 1978-08-12
Abstract: The compression ignition engine crank shaft turns a three lobe impulse disc provided with three injection markers. A collector receives impulses when the disc rotates. The injector market works with three injection impulse receivers to pass signals to their respective impulse formers. The impulse outputs are fed to an OH gate input whose output together with the collector output is fed to a linear gate. The impulse outputs are additionally fed to six AND gates. Each AND gates receives signals from a cam shaft dependent impulse former to provide the fuel injector impulse signals for the magnet windings.
Patent DE-2835921-A1 (DE)
Title: Suction grab for flat items - has arms steplessly adjustable through right angle by central hinge
Inventor: PROELS ROMAN
IPC: B25J15/06
Filed: 1978-08-16
Abstract: The flat item suction grab is partic. for lifting them off a stack, comprising two grab arms, vacuum pipes and suction cups. The arms (10,11) are steplessly adjustable through 90 deg. in relation to each other by means of a central hinge (12), and each has one or more hinges (20) steplessly adjustable through the same angle for components (23, 24) each with mounting discs (18) for suction cups. The discs are adjustable to any desired angle and are interchangeable, and they, together with components and arms, contain integral vacuum passages.
Patent DE-2836247-A1 (DE)
Title: Heater with PTC resistance heating element - has assembly simplified by using intermediate electrode plates for current supply
Inventor: STEINER HERBERT
IPC: A47J29/02
Filed: 1978-08-18
Abstract: The heater has its PTC element provided with contact layers for carrying current and for conducting heat to two thermally-conducting insulating plates between which the element is held under pressure. The heating element (22) is located in a hole (20) in an insulating frame (18) and has its free ends provided with the contact layers (26, 28). The contact layers are connected to the insulating plates (42, 56) via electrode plates (30, 44) acting as current supply conductors.
Patent DE-2841045-A1 (DE)
Title: Azo di:isobutyric (N,N'-hydroxyalkyl) amidine(s) - for use as polymerisation initiators, crosslinking and blowing agents
Inventor: ROOS ERNST DIPL CHEM DR
IPC: C07C239/00
Filed: 1978-09-21
Abstract: New azo di-isobutyric (N,N'-hydroxyalkyl) amidines are of formula (I): (in which R and R' are 2-4C alkylene; X is R'-OH or H). (I) are useful as free radical initiators in polymerisation or crosslinking processes opt. with foaming, and as blowing agents in prodn. of foams. Dispersions with improved stability are obtd., without coagulation or corrosion problems during polymerisation. Polymers with hydrophilic hydroxy-alkyl end gps. are obtd., crosslinkable with formaldehyde resins and giving coatings with improved adhesion and water resistance.
Patent DE-2842391-A1 (DE)
Title: Speed changeover circuit for three=phase motor - has triac switches in and between supply lines to motor to change mode
Inventor: WIRTZ RAINER DIPL ING
IPC: H02P27/02
Filed: 1978-09-29
Abstract: A current supply unit (20) is connected to the three-phase motor by a lead for each phase. In and between these lines are incorporated time switches (31-37) enabling at least two operational modes. In the first mode the leads (21-23) of the supply are permanently connected to the terminals (14-16) of the motor. In the second mode the phase voltage of one lead (22) of the supply is changed over periodically on the terminals (14-16) of the dc motor such that, with a motor with a neutral (MP), the two other leads (21, 23) of the supply are disconnected.
Patent DE-2846184-A1 (DE)
Inventor: KOENIG KARL-HEINZ DIPL CHEM DR
IPC: C07C263/16
Filed: 1978-10-24
Abstract: alpha , beta -Dihaloalkyl isocyanates and a process for the preparation of such compounds by reacting  alpha , beta -unsaturated alkyl isocyanates with halogen in the presence of an organic solvent which is inert under the reaction conditions, at from -35 DEG  to +90 DEG  C. The  alpha , beta -dihaloalkyl isocyanates thus obtainable correspond to the formula    <IMAGE>  I  where R1, R2 and R3 are identical or different and each is hydrogen, a saturated aliphatic radical of 1 to 10 carbon atoms, a cycloaliphatic radical of 3 to 12 carbon atoms, an araliphatic radical of 7 to 11 carbon atoms or an aromatic radical of 6 to 10 carbon atoms, or R1 and R2 together with the carbon atom on which they are present as substituents are cycloalkyl of 3 to 7 ring members, and X is halogen. The compounds are valuable intermediates for the preparation of dyes, surface-coating intermediates, crop protection agents and drugs.
Patent DE-2848342-A1 (DE)
Title: Attachment for lathe chuck jaws - comprises threaded end-bolts positionable into tapped holes on jaw faces
Inventor: VENTURI FRANCO
IPC: B23B31/16
Filed: 1978-11-08
Abstract: The attachments are fitted to the faces of lathe chuck jaws (16) in radial positions as the size and/or shape of the workpiece requires it. The jaws have a number of parallel bores (18, 20). The jaw (16) is fixed to the clamping mechanism (5) by screws (22) accommodated by continuations of the bores (18). The tapped bores serve as seats for the bolts, with such as lateral holes or flats for tightening by tommy bar or spanner. The bolts are positioned in a set of bores (18, 20) suitable for the shape and size of the workpiece. In view of the standard material used for these bolts, they can be adapted to a particular workpiece shape by machining and then discarded when operation with that workpiece is finished.
Patent DE-2852604-A1 (DE)
Title: Heating plate for vulcanisation-connection of conveyor belt ends - comprises heaters connected in series, with PTFE insulated brass terminals
Inventor: BIELOUS TADEUSZ DIPL ING
IPC: B29C43/00
Filed: 1978-12-05
Abstract: Heatable vulcanising plate has serially connected heaters in shape of plates (3) whose terminals (8) are insulated at both sides towards metal cover sheets (1), by means of a highly heat-resistant coating (4) and an electrically insulating layer (5). The terminals are provided with connecting clips consisting of brass rings (7) whose surfaces are located beneath the metal cover sheet (1).
Patent DE-2903798-A1 (DE)
Title: Mains driven motor-generator set - absorbs almost constant current following start=up period
Inventor: OLSCHEWSKI JUERGEN
IPC: H02K47/20
Filed: 1979-02-01
Abstract: The generator set with motor connected to the mains feeds a distributor box to which machine tools, lighting equipment and other user points are connected. Normal protective switchgear and fuses are enclosed and the drive motor takes up a nearly constant current from the mains. The generator output is subject to fluctuations that are usually encountered and the cost appears to be not exceeding that due to direct mains connection of the user points.
Patent DE-2905175-A1 (DE)
Title: Adaptable connector for telephone circuit board testing - raises selected test pins under pneumatic pressure
Inventor: PROKASKY NORBERT
IPC: G01R1/073
Filed: 1979-02-10
Abstract: The connector consists of an array of test pins which are raised to make contact with the circuit board by a piston operated by pneumatic pressure. A flexible wire (VD) is clamped (KL) to each pin to allow the required connections to be made. Each piston is connected to a single pneumatic supply manifold and a number of methods may be used to select which pins are to be raised. The pneumatic lines may contain a manual or an electrical valve or the lines may be removed from self sealing connectors on the manifold. Alternatively a mask may be laid over the top of the pins preventing some pins rising. The pneumatic supply is introduced into the system through a pressure reduction value (DM).
Patent DE-2905664-A1 (DE)
Title: Storage holder for tubes for domestic or office use - consists of metal or plastics plate with feet and brackets and with different sized holes
Inventor: GLUECK FRANZ
IPC: A47K1/09
Filed: 1979-02-14
Abstract: The storage container for toothpaste tubes etc., or in the office for adhesive, consists of a holder (1) in which are several circular holes (3, 3a, 3b, 3c) of different widths. The holder has fixtures (5) for attachment to a wall, as well as feet (6). The holder is in the form of a metal plate (2), or it can be made of plastics. The caps of the tubes fit into the holes (3), up to the shoulders of the tubes. The holes penetrate right through the plate.
Patent DE-2906956-A1 (DE)
Title: Multiple magnetic head adjuster - has two detectors assigned to magnetised control tracks next to information tracks and in separate branches of bridge circuit
Inventor: METZDORF WERNER DIPL PHYS
IPC: G11B5/39
Filed: 1979-02-22
Abstract: The reproduction arrangement is for signals stored in several neighbouring tracks of a movable magnetic recording carrier. It is esp. suitable for video signals recorded on parallel tracks of a magnetic tape, a simultaneous scanning of the tracks being executed by a multiple magnetic head. The recording carrier has two magnetised control tracks (KS 1 and 2) next to the information tracks. They are divided up into sections magnetised in opposed directions. Setting signals are derived through the reading equipment which correspond to any parallel displacement of the magnetic head at right angles to the direction of track running, that is, w.r.t. its stipulated position. These signals are fed to the control input of an adjusting memger. The latter causes a compensating movement of the magnetic head support.
Patent DE-2909727-A1 (DE)
Title: Weatherproof tent cover on building in progress - has cruciform holders for posts and beams rising with walls
Inventor: RADNER-SCHERER HEINZ
IPC: E04G21/28
Filed: 1979-03-13
Abstract: Protection from weather enables work on a building site to proceed throughout the year, by use of a tent structure. Use is made of uprights (1, 1a) for tent support, with cross trusses (4). These are adjustably attached to the rising masonry (10) by retaines (6, 7) shaped as crosses, so that they can rise with it. The retainers are anchored in apertures provided in the masonry and on the ceilings (11). Uprights and trusses can be telescopically extensible. This can afford adequate protection, even in construction of ulti-storey buildings, until the roof is on.
Patent DE-2910835-A1 (DE)
Title: Swinging platform for transferring workpieces - is hydraulically actuated with system of links for smooth stopping at end of travel
Inventor: STOLL KURT DIPL ING
IPC: B23Q16/00
Filed: 1979-03-20
Abstract: A circular platform mounted on a swinging arm transfers a workpiece from one position to another. The platform is connected to a hydraulic actuating cylinder through a system of links. In one extreme position of the platform the piston is full extended and the links are aligned with each other. Thus as the links approach this position they reduce the speed of the platform so that it comes gently to rest. In the other extreme position, with the piston retracted the links are aligned, with similar effect on the platform.
Patent DE-2920776-A1 (DE)
Title: Grab assembly operated by ram - has levers attached to telescoping arms of yokes on piston rod and cylinder
Inventor: KINSHOFER ALFRED
IPC: B66C3/16
Filed: 1979-05-22
Abstract: The grab has two halves hinging in a support. The system includes actuating levers coupled to the lateral arms of transverse yokes mounted on the cylinder and piston of a transverse double-acting ram. The arms telescope inside each other, those of each yoke being coupled to the upwards-protruding lever on the opposite grab half hinge pin. Those of one yoke have one or more guides, in which those of the other slide without twisting.
Patent DE-2922178-A1 (DE)
Title: High contrast photocopier obliterating coloured or grey background - has discriminator to by=pass even tone background for white reproduction
Inventor: PFEIFER JOSEF
IPC: H04N1/40
Filed: 1979-05-31
Abstract: A high contrast photocopier has a point by point scan of the original and a microprocessor discriminator to isolate the background intensity. The difference in the signal at the points is compared with a threshold value and only provides a writing signal if it exceeds the reference value. The system provides a white background copy from coloured background documents providing the background has an even tone. The point by point scan is provided by a CCD array linked by a clocking circuit to the processor.
Patent DE-2924256-A1 (DE)
Title: Frame tent with effective peripheral ground seal - has hollow body round lower edge for filling with water or sand
Inventor: CRAMER MICHAEL
IPC: E04H15/32
Filed: 1979-06-15
Abstract: The idle strip round the base of the side walls of the tent is designed at least in part as a closed tubular hollow body of water- and air-tight pliable material. Each hollow body section has at least one closable filler pipe for filling with water or sand so that now an effective seal can be provided round the base of the tent without having to dig a trench. The stabilising water cushion lies flat close on the ground through its own weight even where the ground is uneven. Where the ground is fairly even the hollow body can be filled with air effectively sealing the inside of the tent from the outside.
Patent DE-2927507-A1 (DE)
Title: Animal stunning gun - with rubber buffer for quick shot bolt retraction
Inventor: KERNER KARL-HEINZ
IPC: A22B3/02
Filed: 1979-07-07
Abstract: Animal stunning gun for use in abattoirs consists of a barrel with a bolt which is driven forward by the firing of a cartridge. The piston of the bolt hits against a thrust bush and thrust plate at the forward end of the barrel. This compresses a flexible rubber bush, held in an end cap of larger inside dia (at least 20%) than the outside dia of the bush. Splines on the outside of the thrust bush ensure a damped return. The bolt from the skull of the animals is extracted so that neither the operator nor the gun can suffer damage. Heat and noise, created by the shots, have been reduced. The rubber rubbers last for 12000 shots without visible wear.
Patent DE-2929923-A1 (DE)
Title: Connecting hose from fan to bubble massage grid - is flexible, kink resistant, heat insulating and easily cleaned
Inventor: BUCHER HEINZ
IPC: F16L33/34
Filed: 1979-07-24
Abstract: A coarse-pored, thick-walled, inner hose of polyurethane foam has its bore bonded accurately in line with the bore of a connector receiving the end of the hose from the fan of an air bubble massage apparatus. The outer hose of the assembly for making the connection to the bubble grid in a bath tub, is of a flexible synthetic or natural rubber, and esp. of soft PVC. Its bore is smooth and corresponds to the outer diameter of the inner foam hose. Its outer surface has a series of annular grooves and ribs spaced out uniformly, or a continuously spiralling rib. The flanks of the ribs are inclined inwards and at the transitions to the crest they are radiused. The hose retains the characteristics of low heat loss and slight flexibility without kinking or causing a build-up of pressure, whilst it is simple to mfr. and easy to clean.
Patent DE-2931973-A1 (DE)
Title: Ultrasonic transducer for e.g. rangefinder - has bias reversed after each pulse and with pulse and bias on both electrodes which are earthed alternately
IPC: H04R3/00
Filed: 1979-08-07
Abstract: The ultrasonic transducer (K), e.g. for a rangefinder, has two electrodes (K1,K2), one fixed, one movable. The electrodes are driven by a h.f. pulse (E1) and 250V DC bias is applied between them. To avoid loss of sensitivity due to the bias leaking away, the polarity is reversed immediately before each h.f. pulse. A voltage of +250V DC is applied to both electrodes via separate resistors (R1,R2). The HF pulse (E1) is applied to both electrodes by two transistors (T1,T3) with the resistors (R1,R2) as the collector loads. Two further transistors (T2,T4) alternately short circuit one of the electrodes to earth. They are driven separately by square pulses (E2,E3) whose leading edges coincide with the start of alternate h.f. pulses (E1).
Patent DE-2932565-A1 (DE)
Title: Ultrasonic cleaning and biocidal treatment in same vessel - the vessel being a unitary structure vibrated by transducers fixed to its exterior surface
Inventor: YOUNG JACK H
IPC: A61L2/18
Filed: 1979-08-10
Abstract: A combined ultrasonic and biocidal treatment appts. suitable for use with surgical articles, comprises a unitary chamber having a sealable door through which articles to be treated are placed in the chamber. Ultrasonic washing liq. is introduced into the chamber in sufficient quantity to cover the articles and the chamber is evacuated to at least 15" Hg. During at least part of the evacuation, the chamber is ultrasonically vibrated by transducers fixed to its outer surface, the vibrations being sufficient to cause degassing and cavitation within the chamber. The vibrations are stopped after a desired period, the vacuum released, the washing liq. removed and a biocidal material, e.g. steam under pressure, introduced into the chamber.
Patent DE-2933160-A1 (DE)
Title: Servo controlled footrest for reclining car seat - has hydraulic clamp to hold rest with remote control
Inventor: SCHMIDHUBER KARL
IPC: B60N2/90
Filed: 1979-08-16
Abstract: A servo controlled footrest for a reclining seat in a passenger vehicle has a flap (13) normally positioned upright under the front of the seat and swung upwards to provide a support for the upper legs in the reclining position. The flap is mounted on a swivel guide with a servo controlled locking clamp, released by pressing a button (28) in the armrest. The locking clamp is spring loaded into the locking position and is released by a hydraulic servo acting on one end of a pivoted release lever. The flap is spring loaded into the raised position and is pressed down by the legs when not required, with the servo button pressed at the same time.
Patent DE-2941471-A1 (DE)
Title: Test agent for detection of dental caries bacteria - esp. Streptococcus mutans contg. a saccharide, e.g. sucrose, and a pH indicator in water or aq. alcohol at pH 6.5.7.0
Inventor: NAKAMURA MASAKAZU
IPC: G01N33/50
Filed: 1979-10-12
Abstract: New testing agent contains (a) 2.5-40 wt.% of a saccharide, (b) 0.0001-0.05wt. % of a pH-indicator with a colour change point in the pH range 5-7, and (c) the remainder a medium consisting of water or an aq. alcohol; the pH of the agent being 6.5-7.0. Pref. saccharides are sucrose, glucose and fructose; sucrose in a concn. of 5-20wt. % is particularly preferred is resazurin in a concn. of 0.001-0.01wt. %. Simple and rapid determination of dental caries activity by detection in the saliva of bacteria which metabolise saccharides to form acids and thus cause a change in ph and a change in the colour of the pH indicator.
Patent DE-2945158-A1 (DE)
Title: Furnace exhaust heat utilisation system - has annular heat-exchange vessels subjected to gases on both sides
Inventor: SINGER JOHANN
IPC: F24H9/00
Filed: 1979-10-10
Abstract: The system utilises the heat from the exhaust gases of furnaces, having a number of annular heat-exchange vessels, against which the gases act from both sides. A number of such systems can be connected in series, being subjected to a common cleaning operation also forming sulphur dioxide. There can be a rotary shaft in the heat-exchanger centre, with top and bottom arms, in whose recesses cleaning bars are inserted. By moving to and fro, soot is scraped off the walls and drops into a collecting trough at the bottom, from which it can be regularly removed.
Patent DE-2949037-A1 (DE)
Title: Vacuum pump shaft wall-box seal - has vapour-free chamber with surfaces of adsorption material accumulating harmful vapour
Inventor: FLECHER PIERRE DIPL PHYS DR
IPC: F16J15/40
Filed: 1979-12-06
Abstract: The shaft seal box is for movement transmission through a partition wall into a chamber which must be kept free from vapour. Surfaces at the opening accumulate harmful vapour. These surfaces are formed of adsorption material (18), typically in the form of a layer enclosing the shaft (2) on the side of the partition (1) to be kept free of vapour. Where the shaft works against them, it can be coated with plastic, pref. polytetrafluoroethylene. The adsorption material can be contained inside a cylindrical housing (13) with a closed outer wall (19) and a meshwork inner one (21).
Patent DE-2949131-A1 (DE)
Title: Train velocity measuring device - uses distance pulses counter over fixed interval in combination with time taken to travel known distance
Inventor: RENNER PETER ING GRAD
IPC: G01P3/489
Filed: 1979-12-06
Abstract: The device counts the number of pulses representing the distance travelled over a fixed time interval. At the end of this time interval the time until reception of the next pulse is measured and this is added to the initial fixed interval. The velocity is obtained by comparison of the recorded count with a pulse count corresponding to a known distance the obtained distance corresponding to the actual count then being divided by the corrected measuring interval. The recorded pulse count may be corrected before being used to obtain the velocity by correcting it for the wheel rim wear.
Patent DE-3006020-A1 (DE)
Title: Open=end spinning rotor boss with helical groove - promotes airflow out of suction chamber against pressure gradient
Inventor: TESAR OLDRICH DIPL ING
IPC: D01H4/12
Filed: 1980-02-18
Abstract: Bearing for an open-end spinning rotor, which has a relatively large clearance between the boss on the rotor and the wall of the low-pressure chamber in which the rotor is mounted, has a device on the boss for promoting an air flow axially outwards along the opening in which the boss is seated. Device may take the form of a helical groove cut in the circumference of the boss, or it may be a helical coil spring surrounding the boss; in either case the direction of the helical turns is in the sense which tends to produce air movement outwards, away from the low-pressure chamber. Device permits the use of a removable, shock-damped rotor, requiring a comparatively large amt. of play between boss and housing, whilst preventing a large flow of air along the boss into the chamber. This reduces the demand on the suction fan, reducing also the power consumption, and prevents early drying-out of the bearing.