baber/WOPTO huggingface dataset:
Patent DE-2706076-A1 (DE)
Title: Methacrylic acid and methyl methacrylate prodn. - by reacting propionic acid or methyl propionate with formaldehyde dimethylacetal
Inventor: FOUQUET GERD DR
IPC: C07C51/353
Filed: 1977-02-12
Abstract: Methacrylic acid and methyl methacrylate CH2 = C(CH3)-COOR' (where R1 is H or Me) are made by reacting propionic acid or methyl propionate CH3-CH2-COOR' with formaldehyde dimethylacetal CH3-O-CH2-O-CH3 (I) for 0.1-100 seconds. Reactions is in the presence of (i) 0-0.5 moles water per mol (I) and (ii) a catalyst comprising phosphates and/or silicates of Mg, Ca, Al, Zr, Th or Ti, opt. with the addn. of oxides of Zr, Al, Th and/or Ti and/or boric acid and/or urea. Catalyst is opt. modified by alkali(ne earth) carboxylates or cpds. forming these under the prevailing conditions, pref. with alkali propionate, KOH or LiOH. Process proceeds with high space-time yield and high selectivity to the prodn. of the desired prod. No additional diluent is required and the post treatment for recovery of the prod. is simple and economical in expenditure of energy. The unconverted (I) is easily recycled to the reaction.
Patent DE-2709815-A1 (DE)
Title: Isolating protection circuit preventing electric shock - measures voltage between two electrodes on workers skin and triggers cut=out when limit is exceeded
Inventor: LINNMAN SVEN
IPC: H02H3/04
Filed: 1977-03-07
Abstract: The protection circuit measures the voltage between two electrodes on a worker's skin, in order to detect any large currents flowing through his body to ground from the equipment be is working on. If such an earth current is detected a cut-out is operated to protect the worker. A generator supplies the electrodes with pulses in order to measure the resistance between them. A voltage detector in the form of an Exclusive OR-gate operates the protective cut-out and/or a signalling device, when this voltage exceeds a given limit. The detector is linked from the worker to the cut-out by wires, audio signals or radio waves.
Patent DE-2716947-A1 (DE)
Title: Rest for type-bars of typewriter - has two offset abutments of resilient material biassed into position under spring pressure
Inventor: FUCHS HANS-G ING GRAD
IPC: B41J7/22
Filed: 1977-04-16
Abstract: Rest for typebars (5) of a typewriter has a first abutment comprising a strip (4) of elastic material supported on fixed structure. A second abutment is formed by a member (11) of a frame (8) arranged adjacent and parallel to the strip but slightly set back so that the returning typebars abut the strip first. The movement of the typebars is arrested by the resilient strip and partly by the frame. The latter gives way against the force of a return springs (21, 22) and acts to finally arrest the movement of the typebars without it bouncing back.
Patent DE-2723741-A1 (DE)
Title: Single ended converter responding to less than one volt - has simple transformer with only two windings, one in collector circuit and other in base circuit with variable resistor
Inventor: ADLER AVI
IPC: H02M3/156
Filed: 1977-05-26
Abstract: The converter, for producing a DC output voltage, responds to an input voltage of only 0.9 volts whilst using a simple transformer with only two windings. The switching transistor is connected in series with one of the windings and receives the input voltage. The first winding (11) is in series with the transistor's collector and the second winding (14) is in series with a resistor (17) between the transistor's base and one supply pole. This fixed resistor is shunted by a variable resistor comprising a second transistor (16). The output (20) is taken from the switching transistor's collector.
Patent DE-2727955-A1 (DE)
Title: Control for underground water system - has height adjustable overflow adjusted by threaded rod in inspection shaft
Inventor: BLANK NIKOLAUS
IPC: E01C13/02
Filed: 1977-06-22
Abstract: Float valve control system for water level in underground water applying and draining system has an inspection shaft connected to underground system by an overflow whose lower edge fixes the water level required in the underground system. The water level can be matched to seasonal changes. The overflow level can be adjusted. This overflow is linked with a float (6) so that the lower edge of the overflow (7) and the switching points of the float (6) are always at constant height relationship. The overflow is a flexible hose (7) which is held by threaded rod (13a) for height adjustment in inspection shaft (1) frame (12).
Patent DE-2736431-A1 (DE)
Title: Electromagnetic motor with asymmetrical air gap flux - has asymmetry produced by areas of differing reluctance in pole shoe iron
Inventor: KLEIN ERIC
IPC: H02K21/18
Filed: 1977-08-10
Abstract: The motor rotor (3) is separated from the stator (1) pole shoes (1a, 1b) by a uniform air gap in order to simplify the construction and assembly. In order to ensure that, in the de-excited state, the rotor always takes up a known fixed position the reluctance of the pole shoes is altered locally. For example, sections of the pole iron (5) may be cut away. The required magnetic asymmetry may alternatively be set up by providing local areas of low reluctance, for example by the addition of narrow ferromagnetic plates. These are placed to locally reduce the air gap once the rotor has been assembled. The advantage of this construction is that the rotor stationary position can be finely adjusted.
Patent DE-2749787-A1 (DE)
Title: Telephone exchange with rerouting equipment - sends data identifying information position from connecting circuit to switching circuit
Inventor: KAILING ALOYS ING GRAD
IPC: H04M3/51
Filed: 1977-11-07
Abstract: The telephone exchange, with call rerouting, releases rerouting data in response to a call made to an information centre. The system enables a supervisor to determine the frequency with which rerouting takes place at any information centre. After the rerouting data has been received and after a connection has been made from the connecting circuit to any one of a group of switching circuits, the data describing the subscriber concerned, which is generated by an identification process or signalled by the subscriber, is sent from the connecting circuit, concerned to the switching circuit reached by free selection in the course of the rerouting process.
Patent DE-2756320-A1 (DE)
Title: Vibration resistant lead accumulator - with thermoplastic ribbed elements between outer electrodes and container wall
Inventor: ATTINGER MANFRED
IPC: H01M10/16
Filed: 1977-12-17
Abstract: A lead accumulator has, between the outer electrode of the plate stack and the container wall, an elastic element made of an electrolyte resistant plastic. This element consists of a flat plate which rests against the outer electrode, and several oblique ribs which fit against the container wall at a mechanical prestress and are pref. arranged in the longitudinal direction of the element. The pressure exerted by the elastic element is uniformly distributed and prevents any fall-out of active material from the electrodes. The design facilitates automatic assembly and uses inexpensive components.
Patent DE-2758325-A1 (DE)
Title: Tile filling system for kiln saggar - has U=shaped steel boxes used for transfer and then extracted
Inventor: KELLER WERNER
IPC: F27D3/06
Filed: 1977-12-27
Abstract: The system fills saggars on kiln trucks with upright roofing tiles, these being slid into the saggers. The tiles are transported in U-shaped steel boxes, which are inserted (11) with the tiles in the saggars (5). After the tiles have then been thrust part of the way out of the boxes, these are pulled out from under them while a resistance is applied to them. The boxes can be arranged in a group to match intervals between the saggar compartments. Conveyors (1) can be included to deliver the boxes into groups, together with a thruster mechanism (3) inserting them in the saggar and stops (9) engaging behind the tiles.
Patent DE-2804860-A1 (DE)
Title: Resistance heating element of PTC - is fixed into slots in block by elastic heat-conducting ceramic pins and slots are then filled with encapsulant
Inventor: NAUERTH KARL-HEINZ
IPC: H05B3/68
Filed: 1978-02-04
Abstract: The heating consists of a resistance element with a positive temp. coefficient of resistance and cast into recesses in a heat-reservoir block. The recesses in the block (1) comprise slots (7). The heating element is fixed into these slots by pins (9) each side of the element between it and the walls of the slot. This fixing takes place before the casting material is introduced into the slots. The fixing pins are elastic and are made of a thermally-conducting ceramic. The sides of the slots may have guide grooves (10) for the pins.
Patent DE-2807193-A1 (DE)
Title: Measuring and inspection probes for casting measuring lance - are separated from lance by unit with clamping jaws and cutter
Inventor: KOOPMANN HERBERT G ING GRAD
IPC: G01N1/12
Filed: 1978-02-20
Abstract: The measuring and inspection probes which are separated from a measuring lance, are drawn from a magazine and coupled to lance. The separator is used a distance away from the lance. Above and below the separating levels (23) are arranged clamping jaw pairs with the separating cutting disc (23) in a frame. These components form a unit which is connected firmly to the magazine in the magazine unloading region. The clamping jaw pairs are pivoted to rotating drive by pivoted levers.
Patent DE-2807922-A1 (DE)
Title: Vapour burner with variable vaporising heat input - has adjustable sleeve to vary proportion of flame deflected onto vaporising chamber
Inventor: LURZ ANTON
IPC: F23D11/44
Filed: 1978-02-24
Abstract: The burner has an annular vaporising chamber (13) above the burner (24-27) inside a tubular gas casing (11), supported by its liquid supply (15) and vapour discharge (16) tubes. A control sleeve (12) is a sliding fit inside this chamber. A ring of holes (29) near the bottom of this sleeve with inwards pointing tag-baffles (30, 31) partially deflects the flame through the sleeve onto the chamber walls. By means of a wire stirrup (18) extending outside the burner assembly the sleeve can be moved axially to vary the proportion of flame deflected.
Patent DE-2809843-A1 (DE)
Title: Fuel ignition system control circuit - ignites pilot flame and opens main valve with delay for flame (NL 11.9.78)
Inventor: MATTHEWS RUSSELL BYRON
IPC: F23N5/20
Filed: 1978-03-07
Abstract: The control circuit for a fuel ignition system ensures ignition of a pilot flame. The control system controls also the main fuel valve. The system ensures stopping of ignition procedure if system components are defective or if a valve leaks. The arrangement has a blocking device with a first switching circuit for energising the control valve and for preparing energisation circuit for the main valve. The first circuit is released by a heat supply command. The second circuit is closed in absence of flame by a flame sensor. In presence of flame the first circuit is released and hence also the second one. A delay arrangement switches on the main valve.
Patent DE-2811338-A1 (DE)
Title: Long-term fertilizer - mixed centrally and turned to foam during transport for burial in fields
Inventor: SEIDL ALOIS
IPC: A01C21/00
Filed: 1978-03-16
Abstract: Strongly absorbent granular long-term fertilisers, contg. inorganic plant nutrients are produced and applied by mixing the granules in a central plant and by transporting them in a truck with a revolving kiln drum to site. During the journey the granules are heated to over 600 degrees C and turned into foam. The truck is then run over the field and the fertilizer is buried by a plough chute. Decentralised system results in reduced overall capital costs and can be used to make large barren areas agriculturally productive.
Patent DE-2814196-A1 (DE)
Title: Continuous treatment of textiles - by forcing treatment fluid through the fabric on the surface of a perforated drum
Inventor: LOPATA KARL-PETER
IPC: D06B3/20
Filed: 1978-04-03
Abstract: An appts. for the continuous treatment of textile fibrics by squeezing a treatment fluid through it comprises an adjacent pair of rotating perforated drums around which the fabric passes successively, each drum being provided with a longitudinal suction or pression tube which is situated close to the inner wall of the drum and which rotates with a different speed, or direction, or both, w.r.t. the drum. The drums are enclosed in a fluid-tight chamber or trough, and the treatment fluid is circulated, via a suitable regeneration unit, between the two drums, being pressed outwards, through the wall of one drum, and sucked inwards through the wall of the other, to treat the fabric twice from alternate sides. The appts. is relatively simple, but gives highly effective treatment at high speeds.
Patent DE-2819033-A1 (DE)
Title: Foldable DIY workbench with power tooling - has toggle lever linkages for moving tool carrying tops out from inverted storage positions
Inventor: WIESMANN HERBERT LUDWIG
IPC: B23Q1/54
Filed: 1978-04-29
Abstract: The DIY-workbench has a choice of working machines arranged so that the entire assembly can be tidied away. The assembly consists of a table with a top (2) on four legs (1). A circular saw (11) fitted on its own working plate (7) is suspended underneath the table top (2) by two pairs of link arms (4, 5) hinged at their lower ends to a connecting plate (6) and to a similar plate (3) at their upper ends. The linkage (4, 5) has toggle levers (16). Notches (17) on each lever engage with pins (18) on the link arms (5) when the working machine is in the operating position.
Patent DE-2824161-A1 (DE)
Title: Closure device for tubes of lead accumulators - contg. rapid curing thixotropic resins, e.g. polyurethane(s) or casting resins
Inventor: BLOME GUENTER DIPL CHEM DR RER
IPC: H01M4/76
Filed: 1978-06-02
Abstract: In a device for closing the lower open ends of the tubes of a Pb accumulator, described in DT 2625581, a pasty or pasty-fluid compsn. which later solidifies, is used to fill up the ends of the tubes and to enclose the tubes. Improvement is that a thixotropic self-hardening compsn. or a rapid-curing casting resin is used. The compsn. may comprise a rapid gelling polyurethane contg. a thixotropic agent, or the compsn. may comprise a thixotropic self-hardening gel. Heating is no longer required to effect solidification of the material.
Patent DE-2824505-A1 (DE)
Title: Dockside mobile loading and unloading system - has vertical spiral conveyor on ship and land based multiple section belt conveyor
Inventor: WILDE UWE
IPC: B65G67/60
Filed: 1978-06-03
Abstract: The mobile system is for loading and unloading large transporters such as ships with simultaneous unloading and loading of mobile, land-based transport vehicles. A spiral conveyor (11) extending vertically into the loading area is supported on the deck (1a) of the ship. The spiral conveyor (11) is connected with a vehicle-mounted transport device on the deckside. This consists of a conveyor belt (36) at the ship a curved conveyor (13), a belt conveyor (12) across the deck area and a further curved conveyor (19) at the vehicle (21). A further transport device is connected with the transfer conveyor (15) at the output of the curved conveyor, (14). This second transport device consists of a telescopical loading conveyor (16) which can pivot vertically and horizontally for the loading and unloading of the vehicle.
Patent DE-2836263-A1 (DE)
Title: Battery or mains operated hand drill - has socket for connection to external power source using separate control switch
Inventor: IKEDA KATSUZO
IPC: H01H9/06
Filed: 1978-08-18
Abstract: The electrically powered tool has a coupling and charging socket connectable to an external electrical current source. The direct power switch and the back drive switch are arranged in parallel close to one another and are connected with operating buttons. A cam between the buttons prevents their simultaneous operation. The normally closed contacts of the switches are coupled to the negative terminal which is connectable to the external source. The normally open switch contacts and the positive pole of the tool power battery are connected to the terminal connectable to the positive terminal of the external source.
Patent DE-2841762-A1 (DE)
Title: Agitator for developing tank - has padded holding clamp and rotating drive for regular tilting and rotating motion
Inventor: DOTTERWEICH EWALD
IPC: G03D3/04
Filed: 1978-09-26
Abstract: The agitator for the film or paper developing tank has a sleeve (4) set on a horizontal rotating shaft (3). The sleeve grips the circular tank and exerts a regular churning motion which spreads and agitates the processing solns. over the photographic material. The churning motion can be a simple rotation, reciprocating or tilting up and down action. The tank is clamped in the sleeve by a spring-loaded, padded grip (5).
Patent DE-2843374-A1 (DE)
Title: Small electrical DC motor - has stationary commutator with radial segments, and brushes rotating about an axis, at acute angle
Inventor: EMMERLING FRIEDRICH ING GRAD
IPC: H01R39/06
Filed: 1978-10-05
Abstract: The motor commutator and brush arrangement facilitates driving the motor in any direction, without the complications of an electronic commutator. The motor has thus a stationary commutator and movable brushes, axially movable in brush holders. They rotate about a common axis and are elastically pressed to the commutator. The commutator (16) is coaxial with the axis of rotation (19) and is in the form of a disc(22) at a right angle to the axis, with radial segments(15). The brushes (17, 18) are inclined to their axis of rotation, so that their axes form with the axis of rotation an acute angle whose tangent is about equal to the coefficient of friction between the brushes (17, 18) and brush holders (20, 21). Thus, the contact force between the brushes and the commutator is independent of the rotational direction and speed.
Patent DE-2848396-A1 (DE)
Title: Broken leg member protection system during healing - measures force between foot and ground when walking and emits warning signal
Inventor: BUSCH ERICH
IPC: G01L1/14
Filed: 1978-11-08
Abstract: The system protects broken members in the leg area from overloading during the healing process. The forces transmitted between foot and ground when walking are measured continuously, and a warning signal is emitted on exceeding an adjustable limit value. The range of adjustment can be such as to match the force at any instantaneous state of the healing process. There can be a load-measuring cell under the shoe or the sole of the foot, connected to a signal conversion and alarm unit worn on the body.
Patent DE-2849020-A1 (DE)
Title: Pressure lock arrangement for bulk goods - is fitted with lock containers alternately filled from above and emptied downwards using swivel movements round circular track
Inventor: SCHLECHT KARL DIPL ING
IPC: B65G65/40
Filed: 1978-11-11
Abstract: The pressure lock arrangement is for bulk goods. It consists of one or more lock containers which are alternately filled from above and emptied downwards into the chamber under constant pressure. The lock container is before each filling or emptying cycle correspondingly closed off, pre-compressed or ventilated. A cylindrical shaped lock container with an opening extending in a cone shape has an eccentric attachment with an inclined or a vertical axis to the outer half of the circular track. The opening lies opposite to the supply channel through swivelling of the circular track when the lock container is stopped in its lowest position. In that position the opening of the outlet channel on the circular track is offset by approx. 180 deg. relative to the opening of the supply channel.
Patent DE-2850645-A1 (DE)
Title: Reverse osmosis cell - with non-return valves in channels between pump and membrane chamber
IPC: F04B53/12
Filed: 1978-11-22
Abstract: A device for the partial separation of fluid solutions based on the reverse osmosis principle includes a piston pump with a pumping chamber and a concentrate storage chamber on the piston rod end. The channels which join these chambers to the membrane chamber have automatically acting non-return valves. Such a valve system is applicable for single- and multistage designs and requires a minimum of valves for the control of the operation.
Patent DE-2855871-A1 (DE)
Title: Protective garment for motorcyclists - with polyurethane elastomer outer membranes and abrasion resistant and absorbent linings
Inventor: SEEBAUER LUDWIG
IPC: A41D31/00
Filed: 1978-12-22
Abstract: A number of layers of which the outer two are flat membranes of a polyurethane elastomer are used in a protective garment for motorcyclists. The second layer which is less elastic than the first is bonded to itself, pref. by welding, at definite places so that when inflated by air or similar media, a series of interconnected cavities are formed. The vol. of the cavities can be altered by pumping up or letting down so that the permeability can be varied as required. A layer of felt forms a buffer for protection against injury, and the neck is protected by a bellows-like connection to the helmet. The garment ensures thermal comfort over the widest range of environmental conditions, together with protection against injury by bruising and abrasion.
Patent DE-2903251-A1 (DE)
Title: High work stool with foot support above ground - has swivel bar linking back and foot rests for easy non-tilt adjustment of seat
Inventor: DESANTA SIMON
IPC: A47C1/034
Filed: 1979-01-29
Abstract: The backrest and foot support of the seat or stool are linked by a hooped bar (26) which can be swivelled about a horizontal transverse axis and which is connected for swivel movement at its upper end to the backrest (38) to form the backrest support (34) whilst its lower end forms the foot rest (32). The middle of the hooped bar is connected for sliding and/or articulated movement to the seat plate at a distance from the horizontal transverse axis. The backrest can now be pressed forward and if required the rear part of the seat plate raised by lowering the bar and releasing a lock with the aid of the feet. The correct arrangement of the seat, backrest and footrest is always possible with the bar in any position. The seat can also be swivelled forward until the foot rest practically touches the ground in which position the seat can be used as a standing support when working standing up.
Patent DE-2908474-A1 (DE)
Title: Fluid flow cut=off self closure valve - has cylinder containing piston with auxiliary valve to provide linear opening under varying load
Inventor: PREUSS GUENTER ING GRAD
IPC: F16K21/12
Filed: 1979-03-05
Abstract: The self-closure valve upper part is used with an auxiliary valve for fluids and act directly on the fitting. The valve part (6) is formed on its counterside as a cylinder or a piston. It is releasably fitted in a screw-in thread part (13) in a cut-off valve. In the cylinder of the valve part, an axially movable piston is fitted, and in the piston is an auxiliary valve (3, 4'). The piston is releasably fitted axially on the connecting rod (2). The valve offers constant opening time under varying load conditions, with a satisfactory fluid flow.
Patent DE-2909863-A1 (DE)
Title: Parallel iterative A=D converter - acts as monolithic integrated circuit and has comparators coupled to specified resistance networks needing less components than usual
Inventor: NAVRATIL FRANZ DIPL ING
IPC: H03M1/00
Filed: 1979-03-13
Abstract: The A/D converter has the analog signal applied to the signal inputs of comparators via different input resistors. The reference inputs of the comparators are also coupled via different reference resistors to a fixed supply voltage and to a shared reference voltage such that each comparator responds at a different voltage. The input resistors are part of a shared resistance network which is supplied with the shared supply voltage. The network is designed such that its circuit nodes connected to the signal inputs of the comparators cooperate with the signal potential setting the supply voltage in the same way that the reference voltages are staggered. There are fewer components than in a conventional network.