baber/WOPTO huggingface dataset:
Patent DE-2319004-A1 (DE)
Title: Actuator for stoppers in bottom-pour ladles - differential cylinder provides two adjustable strokes for slow and fast pouring
Inventor: GILLHAUS HORST
IPC: B22D41/20
Filed: 1973-04-14
Abstract: A device for lifting and lowering stoppers with a differential cylinder consisting of two pistons on a common centre-line working in two press. chambers, the piston rods passing through the end-face of the cylinder. The stopper is linked by a rod and a traverse to a slide working in two bearings to ensure correct vertical operation. The bottom of the slide is fixed to the piston-rod of the upper-piston in a differential cylinder, the lower piston being connected to a handwheel for initial adjustment, i.e. to compensate for wear on the end of the stopper-rod or the pouring bush. When air is fed into the lower press. chamber, the differential cylinder rises the height of the chamber, thus lifting the stopper a small distance, allowing a slow rate of flow of the molten metal. When a faster rate is required, the upper piston can be raised in the upper press. chamber. The stroke of the differential cylinder and of both pistons can be adjusted by threads on the two end-caps of the cylinder and threads on the piston rods. The device can be operated on a time-controlled cycle so a precise amt. of metal canbe delivered.
Patent DE-2323923-A1 (DE)
Title: Plastics housing for power switch - is of multilayer type with outer layers shrunk on
Inventor: WUETHRICH HANS-RUDOLF DIPL ING
IPC: H01H33/02
Filed: 1973-05-11
Abstract: A cast, electrically insulating, plastics housing for H.T. power switches is made by casting an inner shell and then using this as the core in a larger mould for casting a second layer around it, and so on until a multilayer housing has been built up. Pref. a parting agent is used between the layers, and different plastics having differing polymerisation shrinkages are used. Prefd. material are epoxy resin, polyester, with varying preportions of glass filler in some layers.
Patent DE-2333547-A1 (DE)
Title: Belt or chain stepless variable drive - uses twin belts driving co-axial cones via single tooth on each
Inventor: SCHMICH KLAUS
IPC: F16H9/08
Filed: 1973-07-02
Abstract: The driving shaft has two pulleys, each transmitting motion by a toothed belt or chain to two co-axial cones mounted on the driven shaft. Each cone has a single tooth extending along its full length, the teeth being at 180 deg. to each other. A lever carrying jockey pulleys pivots about the driving shaft axis. The drive is transmitted for alternate half revolutions by the tooth of each cone. Speed is changed by sliding the driving pulley in the axial direction. The pulleys have conical surfaces to suit the triangular section of the driving belt.
Patent DE-2348461-A1 (DE)
Title: Electronic ticket usage counter - using field effect transistors uses inductive loop as sensor and has integrators
Inventor: BRUNNER JULIUS DR RER NAT
IPC: G01R21/00
Filed: 1973-09-26
Abstract: An electronic ticket usage counter may be made using an inductive loop or a transfermer as a sensor. Rectified current from the transformer secondary coil is the turn connected to the sources of two field effect transistors. These transistors represent the active sensing elements. The gates to the transistors are controlled by an integration circuit, which is used to fix the voltage reference. The inductive loop senses an electromagnetic field and cuases the transistors to switch, during normal usage. This action causes a counter to be tripped, every time a ticket is passed through the machine.
Patent DE-2351162-A1 (DE)
Title: Reducing porosity of reaction-sintered silicon nitride mouldings - by infiltration with organo-metallic liquids, and calcination
Inventor: FICKEL ALBRECHT DIPL-ING
IPC: C04B35/584
Filed: 1973-10-11
Abstract: Porosity of reacting-sinter Si3N4 mouldings is reduced by infiltrating with organo-metallic liqs. or solns alone or in mixts. drying, pref. below or not appreciably above decompsn temp. of infiltration medium; and calcining pref. at 450-1450 degrees C. Used in construction of plant, appts. and machinery, engine and turbine engineering. Infiltration residues close pores of Si3N4 and lower gas-permeability. Stretch at room- and higher temps. is increased, e.g. by >=8%.
Patent DE-2351304-A1 (DE)
Title: Coolant seal for optically pumped crystal laser - is white silicone rubber seal ring fitted in crystal mounting
Inventor: PFEIFFER EUGEN
IPC: H01S3/04
Filed: 1973-10-12
Abstract: Coolant seal for an optically pumped, liq.-cooled solid state laser with the laser crystal mainly surrounded by coolant but its light exit surfaces sealed against coolant, and with the crystal fastened at least at one end in a mountig, comprises a sealing ring of white silicone rubber, fitted in this mounting, More partic. the sealis esp. simple and cheap, and can ensure satisfactory sealing over a long period against the cooling liq., without protective measures against erosive pumping radiation.
Patent DE-2352044-A1 (DE)
Title: Sealing for fire locks between conveyor connected rooms - with adjacent sealing-carriers bearing fire and smoke spread checking material
Inventor: MCDONALD BRIDGET
IPC: A62C2/22
Filed: 1973-10-17
Abstract: The sealing-carriers supporting material which seals off both fire and billowing smoke, are fitted in the vicinity of fixed and/or movable conveyor installation components, such as conveyor belts, roller conveyors or chain-and-rail assemblies, passing through the walls between rooms in industrial buildings. The carriers pref. fit the outlines of the conveyor components, and bear a substance that foams and acts as a seal under heat, on the sides or edges facing open spaces in the transport course. They may be connected to the slide plate of the fire protection lock, or its frame. These serve the double function of checking fire and smoke from spreading.
Patent DE-2403738-A1 (DE)
Title: Bricks for electric storage heaters - using crushed iron ore bonded with water-glass and lithium hydroxide soln.
Inventor: ERB G DR ING
IPC: C04B28/26
Filed: 1974-01-26
Abstract: The process is for mfg. stones or bricks, esp. heat storage bricks, from a granulate, where a mixt. of water-glass and LiOH soln. is added to a mineral mixt. with size is not >0.3 mm to form a damp. mixt. which is moulded to the required shape. Na- and/or K water-glass is pref. used, mixed with 20% LiOH soln., the resultant mixt. being used in the ratio of 5 pts. to 100 pts. granulate which pref. contains 65% Fe and 5% SiO2, and is esp. iron ore with compsn. 65.9% Fe, 4.7% SiO2, 0.49% Al2O3, 0.01% Cr, 0.03% Mn, 0.01% Cu, 0.034% TiO2, 0.06% C, 0.1% CaO and 0.018% P. After mfr., the brick is pref. coated, at least partially with a surface heat conductor, esp. a colloidal silicon cpd. The bricks are used for electric storage heaters, e.g. night storage heaters. The bricks require no heating during their mfr. which is a substantial cost saving; furthermore, they are less expensive than the usual material, magnesite, and 15% more efficient in use.
Patent DE-2404835-A1 (DE)
Title: Magnetic tape prodn by electrolytic deposn - on a carrier passing through several independent cells
Inventor: ICHIOKA SATOSHI
IPC: G11B5/64
Filed: 1974-02-01
Abstract: Magnetic tape is produced by deposn. of alloys on an endless steel belt passing through an electrolyte bath divided into independent cells, each having an anode connected through a variable resistance to a D.C. source whose cathode side is connected to the steel belt. The magnetic tape is removed from the belt as it leaves the last cell. The difficulty of maintaining an even current density in a single cell over the entire length of the cell is eliminated; bubbles, etc. are eliminated as the band passes from one cell to the next; and the conditions can be varied from cell to cell.
Patent DE-2405042-A1 (DE)
Title: Mixed fluorinated oxyalkylated alkyl phosphate esters - for oil-repellant finishes on paper
Inventor: BILLENSTEIN SIEGFRIED DR
IPC: D21H17/11
Filed: 1974-02-02
Abstract: New mixed F-contg. phosphate esters comprise 20-55 wt. % of triesters of formula (I). 10-60 wt. % of diesters of formula (II) and 1-55 (pref. 1-10) wt. % of monoesters of formula (III), where CnF2n+1(CH2)m(OCH2CHR1)zO 3P=O=(I) CnF2n+1(CH2)m(OCH2CHR1)zO 2P(O)OM=(II) CnF2n+1-(CH2)m(OCH2CHR1)zO P(O)(OM)2=(III) (where R1 is H or Me; n = 6-12; M is H, alkali metal, NH4 or NR4 (pref. H); R is lower alkyl; m = 1-2; z = 1-3; and the fluoroalkyl gps. are linear). The ester mixts. are esp. useful as oil-repellant finishes for paper and other cellulosic packaging materials. The ester mixts. can be prepd. by reacting a fluorinated linear alcohol with ethylene oxide or propylene oxide in the presence of an alkali catalyst (US 2, 723, 999), and reacting the product in a molar ratio of 2-3.5:1 with POCl3. For use as na oil repellant, the ester mixt. is pref. formulated as a 0.1-10 (esp. 0.5-2) wt. % soln. in H2O and/or an organic solvent.
Patent DE-2406898-A1 (DE)
Title: L-Alpha-methyl-DOPA from its DL-N-formyl deriv - by racemate separation with quinine and hydrolysis of the product
Inventor: KOENIG HORST DIPL CHEM DR
IPC: C07D263/16
Filed: 1974-02-14
Abstract: L-alpha-methyl-DOPA (I) is prepd. by (a) reacting DL-N-formyl-alpha-methyl-beta-(3,4-dimethoxyphenyl)alanine (II) with quinine in a polar organic solvent to form the crystalline diastereomeric (L(+)-N-formyl-alpha-methyl-beta-(3,4-dimethoxyphenyl)alanine quinine salt (III); (b) separating the crystalline (III); (c) cleaning the salt (III), separating the quinine, and precipitating L(+)-N-formyl-alpha-methyl-beta-(3,4-dimethoxyphenyl)alanine (IV) from aq. alkaline soln. by adding acid; and (d) saponifying (IV). The product (I) is obtained in high yields and high optical purity; the diastereomeric salt (III) is obtained in pure form without recrystallisation (practically quantitative yields) and can be converted into (IV) in a yield of >90%; (II) does not undergo premature hydrolysis during the treatment.
Patent DE-2406936-A1 (DE)
Title: Device for sorting balls with damaged surfaces - esp for sorting balls of nuclear fuel
Inventor: FABER RALF
IPC: B07B13/07
Filed: 1974-02-14
Abstract: The balls are fed along a channel which leads to a wall with a hole only slightly larger than any of the balls, so that only one hall at a time passes through the hole. Having passed through the hole, the ball falls into a cage made of a helix wound from trapezoidal section wire. The space between coils increases slightly from beginning to end. The helix is mounted on a tubular shaft rotated by an electric motor. Each ball is thus forced to travel along the helix until the space between successive coils is sufficient for it to fall through into a hopper situated below.
Patent DE-2408082-A1 (DE)
Title: Rubbish disposal equipment - has sealine air hose in chamber formed between cover and container
Inventor: ALTVATER JAKOB
IPC: B65F9/00
Filed: 1974-02-20
Abstract: The rubbish is transferred into a bulk container, sealed airtight by a loose cover fitted and removed by a hoist. The cover has a portion fitting over the container edge, so as to form a hollow chamber between the two. This accommodates an air hose providing the seal. This portion can have a flange to allow the cover to be secured in place, using levers on the container. On the inside of the cover there can be a pipe running from top to bottom, with a union for connection to an exhauster. The design gives an airtight seal, unaffected by dirt on the container edge, and without accurate centring.
Patent DE-2409660-A1 (DE)
Title: Electrical control system for motor vehicle switch gear - has housing with printed circuit and plug in control unitss and fuses
Inventor: URSTAEGER RUPERT
IPC: B60R16/023
Filed: 1974-02-28
Abstract: The housing contacts a printed circuit board with contact elements to receive plug-in control elements and fuses. The advantage is that a relay switch or flasher unit or voltage regulator could be exchanged without the need to disconnect and reconnect the numerous cables. The housing has an external socket to plug into the vehicle wiring cable forms. The connections are typically for electronic control components. Circuit connectors are suitable for motor vehicle electrical fittings. Intermediate connections on the same block are made with short flexible couplings.
Patent DE-2413587-A1 (DE)
Title: Inhibiting growth on glass used in sea water - using toxic metal on surface towards sea water
Inventor: KOEHLER WINFRIED DR ING
IPC: G02B1/10
Filed: 1974-03-21
Abstract: On the surface of the glass turned towards the sea water is a lattice structure consisting of copper or another metal with toxic action or a metallic cpd. The mesh aperture(s) of the lattice structure can have any shape. The holder consisting of copper or a copper alloy can be a ring which is pressed and held in place against the glass surface. The lattice structure can be vaporised onto the glass surface and reinforced galvanically. The edges of the structure can be covered or protected by the holder.
Patent DE-2418163-A1 (DE)
Title: Staircase with rectangular tube support frame - with no site welding and with polystyrene fittings
Inventor: VOGT WALTER
IPC: E04F11/022
Filed: 1974-04-13
Abstract: A staircase for apartment blocks or houses comprises a built-up supporting structure of rectangular tubes for the treads, fixed at one side to the wall and suspended at the other side from floor or ceiling. At the wall side, short, alternately horizontal and vertical members of rectangular eloxadised aluminium tube are joined by connectors to form a continuous zig-zag beam which is bolted to the wall at the verticals and supports the treads; at the open side long vertical members of the same tubing are screwed to the treads and hung from the floors. The vertical members of the zigzag beam pref. abut the horizontals and have projecting T-pieces to hook into a slot in the horizontals, or alternatively, do not abut, but are joined to them by natural colour polystyrene L-pieces with steel cores, fitting into both horizontals and verticals. Visible open ends are pref. closed by natural colour polystyrene plugs.
Patent DE-2422921-A1 (DE)
Title: Portland cement-bonded wood chip board prodn. - from moisture-contg, mixt. with resin pref. aq. alkaline phenoplast
Inventor: ERNST KURT
IPC: C04B28/04
Filed: 1974-05-11
Abstract: Portland cement-bonded wood chip board is produced by mixing dried wood chips. Portland cement and synthetic resin to form a mixt. contg. 15-25 wt. % moisture, and compressing mixt., in a heated hydraulic press at 150-200 degrees C under applied press. 30 kp/cm2, for specific compression period 0.3-0.7 min/mm board-thickness, to form boards having specific wt. 1.2-1.5 g/cc. The chip-board is used in the building industry, e.g. for lining walls and for moist places. Cement setting-time is accelerated to about 10 min. because moisture required for quick setting is retained; Thickness of boards is accurate, requiring no further calibration by grinding.
Patent DE-2436258-A1 (DE)
Title: Thermoplastic moulding-deep drawing compsn. - contg. aromatic polycarbonate-urethane and polymer obtd. by grafting monomers onto rubber
Inventor: ALEWELT WOLFGANG DR
IPC: C08G71/04
Filed: 1974-07-27
Abstract: Thermoplastic compsn. for prodn. of articles by e.g. injection moulding and deep drawing, contains (I) 30-70 pts. wt. aromatic thermoplastic polycarbonate-urethane obtained by reacting a low mol. wt. aromatic polycarbonate having terminal formic ester gps. and a degree of polymn. Pn of 1-20, esp. 1-10, with 1-15 mole %, based on amt. of dihydroxy cpd. co-condensed in the polycarbonate, of an aliphatic, cycloaliphatic or aromatic disecondary diamine, and (II) 70-30 pts. wt. of a mixt. of (a) 0-100 wt %copolymer derived from styrene, alpha-methylstyrene and/or acrylonitrile, methacrylonitrile, and esters of (meth)acrylic acid, and (b) 100-0 wt % polymer obtained by grafting a mixt. of 95-50 wt % styrene, alpha-methylstyrene and/or methyl methacrylate and 5-50 wt % acrylonitrile and/or methacrylonitrile onto a rubber, e.g. polybutadiene, styrene-butadiene rubber or acrylonitrile-butadiene rubber. Have a better tensile strength, elongation and resistance to thermal deformation than similar mixts. contg. polycarbonates instead of polycarbonate-urethanes.
Patent DE-2437641-A1 (DE)
Title: Resistance seam welding - using seesaw welding electrode
Inventor: HELLER KARL-HEINZ
IPC: B23K11/30
Filed: 1974-08-05
Abstract: Resistance seam welding system of overlapping sheet metal sections comprises a solid base for the work pieces and an upper electrode consisting of a circular segment surface solid Cu-seesaw pref. water cooled with a like shape segment disk electrode which is rocked by means of 2 hydraulic cylinders thereby describing a rolling motion on the workpiece surface. The system can be easily fitted on standard resistance welders.
Patent DE-2437934-A1 (DE)
Title: Vehicle heating system using fluid heater - has combustion chamber and variable heat exchanger contact surface area
Inventor: HUBER LUDWIG DIPL ING DR ING
IPC: B60K11/02
Filed: 1974-08-07
Abstract: The heater works independently of the vehicle motor and heats either a drivers cab or the complete interior of the vehicle. It consists of a high efficient combustion chamber (1) a fluid heater (5) and an exhaust manifold (16) with pipes. The heater is switched on prior to the engine being started and continues to operate until the required temp. is reached. The heater fits between the chamber and the exhaust on the outlet gas temp. ia adjusted by using different heat exchanger contact surface areas. The external hot gas pipes (7, 9, 10) always have the same cross section but the length of the heater itself can be altered.
Patent DE-2437977-A1 (DE)
Title: Locking device for radio set - protects against unauthorised use and realises three operating states
Inventor: BARDON HERMANN
IPC: H01H27/06
Filed: 1974-08-07
Abstract: The radio set locking device comprises a locking cylinder held in a guiding sleeve by a spring pressure. The sleeve has two radial slots into which a locking pin can be inserted by rotation of the cylinder, so that one of the two switches is operated through springy elements. This arrangement permits a person with the operating key to switch in one of three possible operating states. Circuit A is switched on when the key is inserted and turned to the right. To operate circuit B the key is turned to the left and pressed in a little further to push the cylindrical spring together. A simple turning to the left without pressure switches off both circuits.
Patent DE-2439464-A1 (DE)
Title: Edging tape having tassels, prodn. - in which tassels are automatically introduced into loops of a support band
Inventor: DALLE JOEL
IPC: D04D7/08
Filed: 1974-08-16
Abstract: A decorative edging tape includes a support band formed by a zig-zag configuration of weft yarns fed from yarn guides mounted by pref. L-shaped arms on support bars which are oscillated longitudinally by a cam, and by warp yarns which are introduced into the zig-zag configuration of weft yarns by longitudinally movable needles. A sliver destined to form a tassel is moved by a sliver guide to the edge of the support band, and one of the yarn guides is moved adjacent the sliver such that the weft yarn it is guiding extends from the edge of the support band. The support bar is then rotated by e.g. a cam device which is unaffected by longitudinal movement of the support bar, such that the yarn guides moves longitudinally of the tape and passes over the sliver whereby when the yarn guide finally moves the weft yarn back into the support band the sliver (forming a tassel) is held in a loop of the weft yarn. The tassels are secured to the support tape automatically, thereby eliminating a previously manual operation.
Patent DE-2441146-A1 (DE)
Title: Polypropylene packaging tape prodn. - using compsn. contg. finely divided coal to reduce twisting
Inventor: MOORWESSEL DIETER DIPL CHEM DR
IPC: B65D65/38
Filed: 1974-08-28
Abstract: A process is claimed for prepg. polypropylene tapes for packaging, comprising extruding a polypropylene (PP) moulding compsn. at 170-320 degrees C to form primary tapes with a cross-section area of 0.5-20 mm2 and thickness/width ratio of 1/5-1/80, and monoaxillay drawing the tapes longitudinally in the ratio 1/4-1/12 with their surface at >60 degrees C but less than the m.pt. of the PP crystallites. The compsn. comprises a mixt. of (a) 70-90 pts. wt. PP of which (for a wt. ratio PP/xylene of 5/95) less than 1wt. % in soluble inboiling xylene under normal conditions, the xylene being then cooled again to room temp. and (b) 10-30 pts. wt. PP of which (for a wt. ratio PP/xylene of 5/95) mor than 99 t.% are soluble in boiling xylene under normal conditions, the xylen being then cooled again to room temp, provided that (a) + (b) = 10, the PP's of (a) and (b) have intrinsic viscosities and molecular wt. distributions which are approximately equal (I.V. being 1-10 and measured in decaline at 130 degrees C and mol. wt. distribution by gel permeation chromatography). The process is characterised in that the compsn. contains 0.5-15 wt.% of finely divided coal fo particle size 5-150 um homogeneously distributed therein.
Patent DE-2448640-A1 (DE)
Title: Glass fibre size contg. starch esters of isoalanoic acids - and solid unctuous material for low migration from fibres
Inventor: MORRISON ALBERT RUSSELL
IPC: C03C25/321
Filed: 1974-10-11
Abstract: Glass fibres have an aq. coating of solubilised starch, unctuous material from vegetable waxes, animal waxes, mineral waxes, synthetic waxes, fats and gelled oils, and enough swollen unburst starch granules modified by esters of isoalkanoic acids with 4-6C to retain the unctious material as lubricant, i.e. to restrict its migration through the fibres. The inexpensive size imparts properties as good as or better than conventional material and is easily burned off, with no C residue. The acid is from isobutyric isopenanoic or isohexanoic acid. The coating contains as solids wt. % 5-90% esterified starch having ester gps of formula starch, where R is a 3-5C isoalkyl gp. 0-75% underivatised starch, 5-40% solid unctuous material 0-5% seconary film formers, 0-5% nonionic oils, 1-7% cationic lubricants and 0.5-7% emulsifying agents.
Patent DE-2457931-A1 (DE)
Title: Screw-adjustable thermostatic regulating valve for radiators - has fine thread in medial region of adjustment range
Inventor: GAMPPER JUN OTTO
IPC: F16K31/68
Filed: 1974-12-07
Abstract: Regulating valve for, e.g. domestic radiator comprises a generally cylindrical hand knob (6) having interior projections (16) engaging a stationary screw (7) so that the knob can be rotated to move axially and act through the intermediary of a thermostat (1) on a valve member (25) controlling the hot water flow. The pitch of the screw thread is finer in the medial range of the adjustment than in the outer ranges so that fine adjustment is available in the most used temperature range. The relatively coarser outer thread is necessary to limit the total turning arc of the knob to less than 360 deg.
Patent DE-2459752-A1 (DE)
Title: Epoxide polyadducts having increased pot life - from epoxides, cyanamide monomer and stabilisers
Inventor: SEIDE WOLFGANG DIPL CHEM DR
IPC: C08G59/40
Filed: 1974-12-18
Abstract: In the parent epoxide polyadducts are prepd. by reacting epoxide cpds. contg. >1 epoxy gp./molecule and being derived from bisphenol, with an N-contg. cpd., opt. in the presence of accelerators and fillers, the N-contg. cpd. comprising anhydrous monomeric cyanamide, used in amt. of 0.3-0.6 mol./epoxide equiv. In the addn, 0.01-2%, pref. 0.05-1%, calc. on the total system, of a stabiliser are added, comprising 1-15C carboxylic acids, or alkyl or aryl esters of (in)organic acids. The pot life of the epoxy resin/cyanamide mixt. is appreciably increased, which is advantageous in the prepn. of glass-fibre-reinforced plastics by impregnation methods.