baber/WOPTO huggingface dataset:
Patent DE-2413381-A1 (DE)
Title: Heater tube for heat exchanger - contains flow equalising insert to promote local turbulence and increased heat transfer
Inventor: SCHMIDT THEODOR DR ING
IPC: F23C3/00
Filed: 1974-03-20
Abstract: The tube forms part of a gas to gas or gas to liquid heat exchanger with the heating medium flowing through the tube. It can be used on its own or form part of a tube nest of identical or similar tubes. It consists of a circular metal tube with a clear passage inside for gas to flow through. Within this passage is placed a spirally wound sheet of metal gauze or wire mesh. The local turbulence promoted at each hole transfers to the main gas stream and raises the coefficient of heat transmission. Alternatively the insert can take the form of a series of discs of wire gauze perpendicular to the axis of the tube spaced along the axis.
Patent DE-2426949-A1 (DE)
Title: Axial flow turbine nozzle ring clamp - has clamping rings for the nozzle ring flange and sealing rings
Inventor: GROHROCK OTTO ING GRAD
IPC: F01D9/04
Filed: 1974-06-04
Abstract: The axial flow steam turbine has a fastening and sealing arrangement clamping the diaphragm ring with nozzles. This ring is subject to a high pressure difference between its inlet and outlet side and it is held reliably by a relatively simple arrangement. The clamping system has outside (3) and internal (4) clamping rings of different diameters which are welded on the housing (2). These rings hold circular packing seals (5, 6) and projecting flanges (7, 8) of the nozzle plate (1). The annular seal formed by the cylindrical surfaces of the housing and of the nozzle ring for the sealing packings has a rough machined surface for improving seal retention.
Patent DE-2427550-A1 (DE)
Title: Gasification of fluids, esp. for sewage purificn. - with agitation and aeration by separate aggregates, with intermittent working
IPC: C02F3/00
Filed: 1974-06-07
Abstract: A technique for gasifying fluids, esp. for purifying sewage, by rotating a mixt. of activated sludge and water and injecting into it oxygen, or air, carries out the agitation and the ventilation by separate aggregates, the former working, pref. continuously, and the latter intermittently according to programme. The liq. may be set in motion by a vane carried on a bridge turning above the tank, or by a screw turbine, whilst the sequence and duration of the aeration periods is controlled automatically by an oxygen monitoring device. Air/oxygen input can be adjusted to the actual biological requirements. Energy required to maintain circular flow is minimal. Flocculation takes place during intervals between aeration.
Patent DE-2444846-A1 (DE)
Title: Flat collectors for direct current motor - is suitable for very small drives such as tape recorders
Inventor: LANGENBACHER ERNST
IPC: H01R39/06
Filed: 1974-09-19
Abstract: The flat collector for an electrodynamic machine comprises collector carrier elements situated opposite to each other on a carrier equipped with insulators and metallic collector segments located on the axle side in a plastic hub. They are connected with the collector support elements at the periphery over the fixing parts. The characteristic of the flat collector element lies in the carrier element (1) protruding from the hub (2, 3) which is even, plate-shaped and that the fixing parts (8) enclose the circumference of the collector elements (7) and have gaps in the range of slots (9). Hub (2, 3) has inner circumferential grooves and a widening (12) on the coil side. The main use for the flat collector elements is in small drives.
Patent DE-2449422-A1 (DE)
Title: Sulphide based, luminous substances purificn. - from crosslinked binders and foam with peroxides by water solubilising impurities with peroxides
Inventor: BOLZ BRUNO
IPC: C09K11/56
Filed: 1974-10-17
Abstract: Impurities, e.g. Cr-sensitised and/or Cr-crosslinked binders, e.g. PVA, gelatin, polyvinyl pyrrolidone, etc., and foam-inhibitors, etc. are removed from a suspension contg. luminous substances on sulphide basis, e.g. ZnS : Ag, ZnCds : Cu, by (1) water-solubilising the impurities, either by (a) addn. of percarbonates, alkali peroxides, chloride of lime or perhydrite, but esp. perborates, to aq. medium, or (b) by addn. of org. per-cpds. to aq. alcoholic medium, or (c) by addn. of peroxy-sulphate M2SO5, peroxy-phosphate (H3PO5,H4P2O8) but esp. peroxy-disulphate M2S2O8, in an acid medium buffered with a salt of an org. acid or salt mixt. of org. acids, e.g. citrate, acetate, tartrate or citrate + acetate, and (2) separating from luminous substances to be refined by filtration. Used for photo-chemical prodn. of luminescent screens for colour TV, and recovering sulphide luminous substances by washing after developing. Hardened binders are water-solubilised quickly; luminous substances are not attacked by the chemicals.
Patent DE-2453504-A1 (DE)
Title: Ventilator on tool spindle electric motor - has magnetic coupling part fitted to impeller, other part to spindle
Inventor: JESINGER RICHARD
IPC: B23Q5/10
Filed: 1974-11-12
Abstract: Tool spindle of the drilling or grinding type, with an electric motor, the stator of which is connected to the spindle socket, and the rotor is connected to the spindle shaft. The spindle is located rotatable in the socket with a first bearing unit on the tool side and a second such unit, viewed from the tool side, in front of the rotor on the spindle shaft. A ventilator is fitted on the end of the electric motor. The ventilator housing by means of a shaft. To the ventilator impeller a part of a permanently magnetic coupling is connected so that it rotates with it, and another part of the coupling is fitted on the rotor side end of the spindle shaft.
Patent DE-2455479-A1 (DE)
Title: Mechanism for locking of sliding windows - has handle actuated locking rod with wedge shaped locking pieces
Inventor: DIEHM WALTER
IPC: E05C17/60
Filed: 1974-11-23
Abstract: The mechanism for locking or sliding windows or doors consists of a locking rod held on the vertical profile frame of the door or window panel. This rod is actuated by a handle and a drive. The sliding panel is brought into the closed and open position by actuation of the handle. The locking element is provided with an opening (21) for connecting the locking rods (12, 14). This opening has two faces parallel to the locking rods. It has also two sloping faces (25, 26) and the minimum distance between the two vertical faces of the locking element (13) is equal to or greater than the thickness of the locking rod (12). The locking element has sloping faces or lugs with inclined or concave matching faces for locking purposes.
Patent DE-2460322-A1 (DE)
Title: Purifying, e.g decolourising sugar-contg. liquids - by contact with anion exchange resins derived from crosslinked vinylbenzyl chloride
Inventor: CLEMENS DAVID HENRY
IPC: C13B20/14
Filed: 1974-12-20
Abstract: Sugar-contg. liquid is purified, i.e. deionised and decolourised, by contact with an anion exchanger resin (I) derived from a crosslinked vinylbenzyl chloride. quaternary, or strongly basic, as well as weakly basic resins may be used in deionising, and may have gel-like or macroporous structure. Method is used in cane sugar mfr. Advantages include (i) refined sugar quality is improved; (ii) conc. sugar soln. quantity decolourised in a given time can be increased; (iii) process avoids use of large quantities of adsorbent; (iv) decolourising capacity of (I) is 25% better than that of chloromethyl ether styrene resins; (v) (I) are stable to heat; (vi) (I) are more easily regenerated than chloromethyl ether resins.
Patent DE-2506537-A1 (DE)
Title: Pocket-size TV receiver with projection lens system - uses handkerchief screen to allow watching by several viewers
Inventor: LAMMERS ALBERT
IPC: H04N5/74
Filed: 1975-02-17
Abstract: The television picture projection system allows a large number of viewers to watch the program simultaneously by using a lens arrangement similar to that for a film to project the picture onto a screen. The television cathode-ray tube is made as small as possible so that existing film lens systems can be used, and the whole receiver can be carried around much like a pocket radio. The screen may be the size of a pocket handkerchief and may be secured to the front of the cathode-ray tube assembly by means of pivoted arms. A pocket radio may also be combined with this television receiver. A suitable wall surface may be used as the screen.
Patent DE-2510177-A1 (DE)
Title: Push fit plastic surface clamp - holds surfaces at required clearance and retains by plastic spring action
Inventor: WASSKOENIG JAKOB
IPC: H05K7/14
Filed: 1975-03-08
Abstract: The clamp is used to hold surfaces which can be removed and reinserted and fit on top of one another. IT is particularly intended for use in electronic apparatus, especially for printed circuit boards with their protection plates. The clamp holds the plates at the required spacing from one another. The clamp is U shaped and has at least one centre support (5) at a specified distance (1). The surface components (2, 3) are held by the side supports (1, 6) and the centre support (5). The inner ends of the recesses are widened (10, 11) so that the supports can act with a spring effect on the surfaces. A boss (4) on the side supports and/or the centre support can be used to locate in a recess on the surface components.
Patent DE-2519257-A1 (DE)
Title: Atmospheric corrosion resistant electrical contacts - is obtd. by alloying metal of support with aluminium of by applying barrier between the dissimilar metals
Inventor: SCHMIDT-BRUECKEN HEINRICH DIPL
IPC: H01H1/02
Filed: 1975-04-30
Abstract: Electrical contacts used in the telecommunications industry, which are usually made of Ag with contacting points of more noble metal and liable to attack by H2S and water from the atmosphere, are made resistant to the formation of metal sulphide on the Ag surface by alloying Ag with Al and/or by applying a barrier of a hydrophobic electrically insulating substance between the less noble metal of the support and the more noble contact surface so as to prevent an electrolytic ion transport reaction.
Patent DE-2527000-A1 (DE)
Title: Sorter with high speed turbulence nozzle - for comminuted materials with different suspension rates
Inventor: ROSSIE KARL DR
IPC: B07B4/02
Filed: 1975-06-18
Abstract: Appts. for sorting comminuted materials having highly different suspension rates, to remove underisable foreign matter, comprises a blast nozzle with a high blast speed. A turbulence member is present of artificially increasing the turbulence of the materials. A blower injects the materials through the nozzle, and the constituents having a lower sp.gr. are separated in a fall zone and drawn by suction into a collecting hood leading to a sunction fane and separator.
Patent DE-2531651-A1 (DE)
Title: Reactor building for pressurised water reactor - has close fitting collar around steam lines through steel grating floors
Inventor: SCHABERT HANS-PETER DIPL ING
IPC: G21C13/036
Filed: 1975-07-15
Abstract: The Parent Patent describes a reactor building, in which the plant rooms, containing a pressurised water or similar reactor, steam generators and circulating pumps are separated by concrete walls and slabs from operating rooms surrounding them. The slabs immediately above the steam generators and/or circulating pumps contain steel gratings, to permit press. equalisation in the event of a reactor incident. Loose steel flooring plates cover these gratings. The live steam line leading up from the top of the heat exchanger is held in position in this steel structure. In this addition the holding frame or collar for the live steam line fits around this line closely in all operating positions. In particular, the holder is vertically resilient. The clearance around the steam line can be reduced, leading to reduced impact loads under horizontal forces thus enabling the holder to be reduced in strength. The resultant economies can contribute towards the more expensive construction of a fitting holder.
Patent DE-2533756-A1 (DE)
Title: Drive for flashlight fitting in camera - is moved to next position by element spring through switching element
Inventor: FROESCHLE GUENTER
IPC: G03B15/04
Filed: 1975-07-29
Abstract: A switching element is moved from a rest position to a tensioned position by a winding element moved against a spring pressure from its initial position to the end position. When the winding element is released and returns to its rest position, the switching element, driven by its spring, hits a cam on the fitting and moves it to its next position. The winding element resetting spring transmits the switching force to the switching element for the flashlight fitting drive. In this way the next flash cube is correctly positioned to take the next photograph.
Patent DE-2535422-A1 (DE)
Title: Concrete reinforcing meshes spacer - comprising two concrete or similar clamps and interconnecting shaped steel bar
Inventor: MUELLER HORST
IPC: E04C5/16
Filed: 1975-08-08
Abstract: The space retainer comprises two clamping units (1), made from concrete, asbestos cement, artificial stone etc, and a correspondingly shaped round steel bar component (2) connected with these to make up the spacer. The round bar component is inserted in the opening (4) in the clamping unit, which is then inserted across the horizontally aligned steel mesh (6), with the other opening (3) locking into the U-shaped part of the bar and thus fixing the mesh bar with absolute firmness in the opening (5). This ensures correct spacing for the concrete covering from the mesh steel to the formwork (8), and connection between the two meshes to make up a rigid entity; and provides the possibility of alignment correction for the formwork.
Patent DE-2545857-A1 (DE)
Title: Accumulator separator bag consisting of two films - with U-section extruded edge connecting strip
Inventor: EGGERT FRANK
IPC: H01M2/14
Filed: 1975-10-14
Abstract: The strip is adhered to the separator films by means of a melt adhesion which is applied to the edge strip while it is still hot immediately after extrusion, at which stage the surface of the edge strip is still completely clean. The nozzle from which the adhesive is applied to the edge strip can be integrated in the extruder nozzle which produces the edge strip, or it may be disposed between the extruder nozzle and the cooling bath. The edge strip together with the applied adhesive is subjected to cooling to prevent distortion. The edge strip may then be cut to the desired lengths which are joined to the separator films and bonded to them by application of heat.
Patent DE-2545899-A1 (DE)
Title: Series-parallel convertor for high bit rates - applies digital input and timing signals to AND:gates and delay lines in opposite senses
Inventor: HANKE GERHARD DIPL ING
IPC: H04L25/45
Filed: 1975-10-14
Abstract: The series-parallel converter for high bit rates applies digital signals of n consecutive bits with bit repetition frequency (fb) to a series of n-1 delay lines. They are delivered to n outputs through n AND circuits to which comes a concertor timing signal of repetition frequency fb/n and keying ratio of 1 :n. The timing signal and the digital input signal are applied to a series circuit of n-1 delay lines, but in opposite senses and to the n AND-circuits. The necessary delay for each output is equally distributed over two delay lines with delay times of T/2.
Patent DE-2551654-A1 (DE)
Title: Switch with disconnecting delay for table lamp - ensures light for short period after disconnecting by bimetallic delay element
Inventor: SCHNAUSE ROLF
IPC: F21V23/04
Filed: 1975-11-18
Abstract: The electrical connecting and disconnecting switch is used especially for portable lighting fittings such as for example table lamps. The light is switched off with delay. This delay ensures that a room can be left conveniently after switching the light off and the light will go out later. When the switch is actuated then the power supply is maintained by a bypass conductor. This power supply is interrupted only with time delay by a timing switch. The bypass switching circuit is closed again only on actuating the power connecting contacts. The time switching arrangement interrupts the power circuit irreversibly up to the actuation of the connecting contactors which restores the circuit for next disconnection.
Patent DE-2557996-A1 (DE)
Title: Hydraulic or pneumatic conduit connection - has conical nipple with lock nut holding surfaced inner ring in position
IPC: F16L33/22
Filed: 1975-12-22
Abstract: The releasable connection is for hydraulic or pneumatic conduits. The conduit end is pushed over the conical outer surface of a connecting unit nipple and secured by a lock nut. The lock nut (13) has a separate, axially held, inner ring (14), the conical inner surface (36) of which are located opposite to at least a part area of the complementary conical surface (21) of the nipple (16). Both complementary conical surfaces (21,36) have the same rise single angle, and are approximately equal in length. The inner ring (14) is retained axially by the lock nut (13).
Patent DE-2602105-A1 (DE)
Title: Multipurpose spring plate shock absorber - has interchangeable spring elements between two plates with movement stops
Inventor: MAIGLER OTTO KARL BORROMEUS
IPC: F16F3/10
Filed: 1976-01-21
Abstract: There is a first support plate held in a housing with guide rails for a second support plate. Spring elements fit between the plates and their movement is limited by side supports. The side supports and guides are made from rubber or plastic with a surface layer of wear resistant and oil resistant material. The first support plate is held in the housing by screws. The springs can be interchanged according to the loading conditions and a signal generator can be fitted to provide an alarm when vibration becomes excessive.
Patent DE-2607498-A1 (DE)
Title: Baby's sleeping bag for prams or cots - has firmly connected rain hood which folds into bag pocket in bag head region
Inventor: SOG MAXIMILIAN
IPC: A47C31/10
Filed: 1976-02-25
Abstract: The baby's sleeping bag can be used both in a perambulator and/or the baby's cot. It has a back portion (1), supporting the baby, connected to a feet enclosing portion, and a hood protecting against rain etc. The hood (6) is firmly connected to the bag, and folds into a pocket (5). The pocket is preferably located at the head side end of the supporting back portion, or in the rear envelope (4) of the same. The connection may be provided along a lateral edge of the bag. The pocket may be provided with a closing slide fastener.
Patent DE-2607520-A1 (DE)
Title: Power transmission drive system - has second motor mounted at end of lever to increase transmission efficiency
Inventor: KEIP BRUNO
IPC: F16H33/00
Filed: 1976-02-25
Abstract: An electric motor (1) has an output shaft (2) which carries a wedge-shaped lever (3). The lever (3) carries a second motor (5) fitted in a recess (4). The motor (5) drives a pusher (6) which slides in a slot (11) formed in a second lever (10). The end of the pusher (6) is forced against the end face (12) of the slot (11). The second lever (10) is mounted on a shaft (7) running in a bearing (8) and provided with a V-belt pulley (9). The levers (3)(10) should be as long as possible so that for a given force exerted by the pusher (6) the power transmitted is increased to a maximum and the efficiency of transmission is also increased.
Patent DE-2609745-A1 (DE)
Title: Melting furnace for cast iron etc. - burns natural gas and uses coke as conductor for electric heating refining
Inventor: ISKANDEROV SAMANDAR G
IPC: F27B1/02
Filed: 1976-03-09
Abstract: The lower part of the furnace forms a bath for metal refining. This bath has a hearth with an electrode. The wall above the hearth has more electrodes below the burners. The hearth is loaded with granular coke which serves as a means for closing the electric circuit between the two sets of electrodes. Furnaces of this kind can be arranged in cascade for progressive refining. Effective removal of impurities is achieved to give a high quality product.
Patent DE-2609880-A1 (DE)
Title: Shaft coupling flange connection - has eccentrics for equalising tension of circumferential straps
Inventor: WEISS HERMANN
IPC: F16D3/60
Filed: 1976-03-10
Abstract: The shaft coupling has two coaxial flanges connected by a circumferential array of resilient straps. Any two successive straps have their adjacent ends connected by bolts (6) to one of the flanges and their mutually remote ends correspondingly connected to the other flange. The free ends of any two adjacent belts are connected by a strengthening plate (17). Each strap is mounted on the respective bolt through the intermediary of an eccentric bush (22) having collars (24, 26) embracing the thicknell of the strap. The collars are accessible by a tool for rotation of the bushes, to equalise the tension of the straps.
Patent DE-2614500-A1 (DE)
Title: Non-corrugating plastic foil painting surface - opacified by etching with solvents or by coating with bonded pigment compsn.
Inventor: BEYER ERNST DIPL CHEM DR
IPC: B44D3/18
Filed: 1976-04-03
Abstract: An opacified plastic foil is used as a non-corrugating artist's painting surface. In one pref. embodiment, material is a polystyrene foil opacified by etching with a mixt. of 70-95 ptd. acetone and 5-30 pts. EtOH. In another embodiment, foil is opacified by coating with a compsn. contg. white pigments and binder, drying to a water-resistant coating after evaporating solvent. Surface is suitable for all painting techniques; resists rolling, warping and tearing, and does not have rough structure of standard painting and drawing papers. PVC andcellulose acetate foils can also be used.
Patent DE-2620034-A1 (DE)
Title: Mechanical coin verifier with feeler gauges - has coin channel with checking finger inside held by leaf spring and lever operated weight arm
Inventor: STROBEL ROLF
IPC: G07D5/10
Filed: 1976-05-06
Abstract: The coin checking device consists of an inlet hopper (3) for coins leading to a coin channel (1) which guides incoming coins to a track carrier (6). The latter supports a coin weighing arm (13) balanced on a bearing (12) and resting against a stop pin (16). One end (10) of the lever arm penetrates into the coin channel and receives each incoming coin. The other end (14) is equipped with a balance weight (15) adjustable in position. In addition to the weight tipping mechanism, their is a trip lever with a finger positioned against a leaf spring. Accepted coins are guided by the mechanism into a slide inside the machine.
Patent DE-2621709-A1 (DE)
Title: Animal feed dispensing trailer - has body with screw conveyors delivering feed to adjustable outlet operable on right or left side
Inventor: MOERTL KARL
IPC: A01K5/00
Filed: 1976-05-15
Abstract: The conveyor vehicle for animal feedstuffs incorporates a container (1) which is divided into compartments (1a, 1b, 1c), with separate emptying devices. On both sides of the container walls are devices (8, 9) for keeping the foodstuff loose in the container compartments. The distributor is adjustable so that the vehicle can be emptied to the left or right hand side. The mixing ratio is adjustable by altering the speeds of the metering screws, or by altering the discharge outlet. The emptying device can be adjusted to various discharge widths.
Patent DE-2627814-A1 (DE)
Title: Sliding clasp fastener of which the tapes are coated with adhesive - which melts under the heat of a flat iron
Inventor: SCHNEIDER GERHARD
IPC: A41H37/00
Filed: 1976-06-22
Abstract: The tapes of a sliding clasp fastener are coated with adhesive on one side or both. The tapes may be made wide and folded to a Z, of which the inner surfaces are coated as before. With the adhesive, the fastener can be applied to the garment by the heat of a flat iron and, if it becomes unserviceable, removed again by the same simple means; thus replacement is facilitated. With the 2-folded tape, the material bordering the seam is inserted into one of the angles of the Z; the iron's heat then joins the three limbs of the Z together, with the material between them. Method is suitable for cushion covers.