baber/WOPTO huggingface dataset:
Patent DE-2717571-A1 (DE)
Title: Tyre retreading frame - holds new tread strip in position and moulds bonding rubber at edges of strip
Inventor: MALTINTI GIUSEPPE
IPC: B29D30/58
Filed: 1977-04-20
Abstract: Appts. for applying a new tread of already vulcanised strip material onto a tyre for emoulding also centres the tread and acts as a mould for the raw rubber coating used for anchoring the lateral edges of the tread to the basic tyre. The entire assembly is cantilevered on an overhung shaft and has centering levers for applying to the tyre beadings and a pair of rings which can be adjusted axially in position to suit the tyre and form the lateral stop for the tyre, and the tread and form the lateral mould for the raw rubber layer in the edge region of the new tread. These side rings are pref clamped together by adjustable bolts (not shown). Pref. the butt joint at the two ends of the tread is also covered by a local plate which forms a mould in this region for the bonding raw rubber material at the butt joint. Used for retreading of a tyre with an already vulcanised tread strip. The tyre together with tread and side rings, transverse plate and transverse adjustable tie bars is placed in the autoclave for vulcanising of the new bonding material.
Patent DE-2722610-A1 (DE)
Title: DC voltage to three phase AC inverter - uses capacitor battery charging and thyristor control through series inductance coil to regulate voltage
Inventor: REIJDEN WILLY ROCHUS VAN DER
IPC: H02M5/45
Filed: 1977-05-18
Abstract: The three-phase AC converter feeds the input (1) through a bridge rectifier (2) to a special circuit which forms a DC output voltage (UB). The special circuit includes a pulse control unit with a load resistor (R1) in series with a circuit breaker switch S1). In parallel with the rectifier bridge output are two capacitors (C9,C10) forming a battery. The potential of the battery output is regulated by a diode series-parallel arrangement including a thyristor (TH11) in series with an inductance coil. The output voltage eventually produced is a given fraction of the regulated voltage formed by the control circuit.
Patent DE-2728495-A1 (DE)
Title: Protective device for circuits in magazine - has card extractor which is connected to voltage supply and connects it to additional contact points
Inventor: WELWARSKY WALTER DIPL ING
IPC: H05K7/14
Filed: 1977-06-24
Abstract: The circuit are mounted on plug-in devices (4, 4') which have additional connection points at the fron end opposite to the plug-in side with the contact pins. The additional connection points on the plug-in devices are connected with the contact pins for supply voltage. A card extractor (7) is connected with the voltage supply source by means of a flexible cable (6) and connects additional contact points with the supply voltage when connected to the plug-in device.
Patent DE-2730390-A1 (DE)
Title: High efficiency mixer head to create dispersions - using spherical hemispherical or pyramidal shaped bodies with holes and/or projections
Inventor: PLATE HORST
IPC: B01F7/00
Filed: 1977-07-06
Abstract: Mixing head to create dispersions and mixtures consists of a hollow body of rotation, e.g. a sphere, a hemisphere or a pyramid. The surface is covered with a series of holes which act as inlets and outlets. The head can also be a solid body having passages feeding to the surface. The outlet passage are at a greater distance from the axis of rotation than the inlet passages. They are arranged in parallel circles perpendicular to the axis of rotation. The outlet holes are principally in the equator region which the inlets are in a circle parallel to this. Used for dispersing, mixing and agitating the head gives improved efficiencies compared to paddles, propellers etc. with less air entrainment and lower velocities.
Patent DE-2731311-A1 (DE)
Inventor: MAYRHOFER HORST DIPL ING
IPC: B28B11/16
Filed: 1977-07-11
Abstract: For producing hollow building blocks which receive, in a slit (3) running continuously from top to bottom parallel to one lateral building block face, a foamed-in foam insulation (4), the two brick parts delimiting the longitudinal side of the slit (3) being connected only by narrow webs and/or via the cured foam (4), brick parts forming in each case a slit (3) are ranged together slit-against-slit in the slit longitudinal direction. Then foam (4) is injected into the slits (3) lying one behind the other, the slits (3) are covered and the foam is allowed to foam completely and cure. <IMAGE>
Patent DE-2742717-A1 (DE)
Title: Course regulator for river ships - has rate of turn compared with reference value set on display disc with LEDs
Inventor: HENKE ULRICH DIPL ING
IPC: G05D1/02
Filed: 1977-09-22
Abstract: A course regulator for on board control of river boats has a display that indicates the rate of turn in comparison to a selected value. The tiller(12) is set to give a particular change of course and the rate is displayed on a scale (14). The actual rate is provided by rate of turn measurement(18) that gives a setting for a display(26) ponter that may be compared with the reference(22). A number of different display schemes may be adapted for the disc (20) e.g. coloured, light diodes etc.
Patent DE-2746175-A1 (DE)
Title: Hand fire extinguisher valve head - has operating key on handle secured in inoperative position by safety key
Inventor: SCHULTE-FRANKENFELD MANFRED
IPC: A62C13/76
Filed: 1977-10-14
Abstract: The extinguishing agent container (5) has a valve head (1) on which the jet body (2) is mounted. The jet body carries handle (3) with closed grip (4). Along the apex of the valve head (1) an operating key (6) is provided in form of a rocker-action lever swivelling around fulcrum (7) fitted inside the valve head. The operating key (6) has a lever arm (8) fitted on its rear part which is longer than the front part (9). To operated the key (6) the lever arm (8) is pressed down. The handle carries also a safety key (10) with serrated surface meshing with the underside of the projecting part of the arm (8).
Patent DE-2746491-A1 (DE)
Title: Electronic tape display for cassette recorders - uses photo resistors to allow display of relative amount of tape used
Inventor: HAASE HANS JOACHIM ING GRAD
IPC: G11B27/34
Filed: 1977-10-15
Abstract: A magnetic tape cassette recorder includes a moving iron instrument to provide a display of remaining play time. Photo resistors (4a, 4b) are located directly beneath the tape cassette spools (2a, 2b) and are coupled into a bridge circuit together with two resistors (5a, 5b). A current source supplies the bridge and the differential output signal obtained (7, 8) is indicative of the relative tape on the two spools. The output signal is coupled to the coil of a moving iron instrument with a display indicating tape remaining.
Patent DE-2749892-A1 (DE)
Title: Plastics injection blow-moulded pipe coupling - has bushing with groove for ring seal, the groove having angular flanks
Inventor: NEUEDER LUDWIG
IPC: B29C57/08
Filed: 1977-11-08
Abstract: Plastics injection blow-moulding, e.g. a pipe fitting, has coupling sleeve with an annular groove adapted to receive a ring seal. The transitional zone from sleeve to trailing flank of the groove is relatively sharp-edged; or the transitional zones from the sleeve to both leading and trailing flanks of the groove are shaped. In the mfr., a beading protruding inwards is applied at the transitional zone of the moulding, which is drawn into its final position during the blow-moulding oif the groove.
Patent DE-2752317-A1 (DE)
Title: Removal of hydrogen sulphide from gas streams - and recovering molten sulphur by catalytic oxidn., esp. for treating tail gas from Claus process
Inventor: HASS ROBERT H
IPC: B01D53/52
Filed: 1977-11-23
Abstract: H2S is removed from gas streams and recovered as elemental S. The gas stream contains only a small amt. of H2S and a small amt. of a gaseous oxidising agent also contg. S. The O2 is there in the quantity corresponding to the stoichiometric quantity necessary to oxidise the H2S completely, the process taking 30 days. The feed gas is at a temp. 121-232 degrees C and a space velocity of 250-2000 vol/vol/hr. It is brought into contact with a catalyst of Va oxide or sulphide on a non-alkaline, porous, refractory oxide (Al2O3). This catalyst retains its activity over a period of 30 days. The catalyst causes the formation of elemental sulphur which is subsequently sepd and a pure product gas is left.
Patent DE-2753807-A1 (DE)
Title: Helical wire location former - has two halves each with uniformly spaced circular openings cooperating in face to face relationship
Inventor: SYKES NEVILLE BROMLEY
IPC: B21F33/04
Filed: 1977-12-02
Abstract: The locating means for co-operating with helical wires, comprising a pair of bodies which are or can be disposed in face-to-face relationship with operative faces either abutting each other or spaced a little apart from each other. The operative face of the first of the bodies is formed with a row of circular openings of uniform dia. and spaced uniformly apart, and the operative face of the second of the bodies have a row of locating formations. The arrangement such that when the bodies are disposed in face-to-face relationship the two rows extend side-by-side and the openings and locating formations together define a passageway which can receive and locate a helical wire of pitch equal to the spacing between the centres of the openings. It is possible to advance the helical wire axially by relative rotation between the helical wire and the bodies about the axis of the helical wire.
Patent DE-2754830-A1 (DE)
Title: amoeba cells cultivation - using cell-culture roll flasks
Inventor: ENDERS BURKHARD DR
IPC: C12M1/24
Filed: 1977-12-09
Abstract: In a new process for culturing cells in cell-culture roll flasks, the cells to be cultured are those of an amoeba trophozoite. New apparatus for cell-structure processes is a flask the bottom of which is strongly drawn into the middle. Used cultivation of unicellular parasitic organisms, esp. Entamoeba. Previously, amoebae have not been cultivated in cell-culture roll flasks because the cells do not adhere to the flask surface. It has now been found that growth is obtained if the rate of rotation is kept low (10 rotations per hr.). The new type of roll flask gives a greatly increased internal surface area, and its use gives an increased yield of cells.
Patent DE-2759190-A1 (DE)
Title: Mobile road marking machine - has remote compressor with control valve connected to marking material tank end opposite outlet
Inventor: WOLANY HANS-JUERGEN
IPC: B05B12/22
Filed: 1977-12-31
Abstract: The marking machine for roadways has a travelling chassis with a tank containing the marking material, which is delivered by compressed air to a spray nozzle. The material is applied either directly to the road surface or to a distribution roller on a hinge mounting between the nozzle and road surface. An independent machine supplies the compressed air, being mounted at a distance from the marking material tank on the chassis, and connected to it by a pipe with control valve leading to the end of the tank opposite to the outlet.
Patent DE-2804206-A1 (DE)
Title: Housing for air cell powered electric device - has at least one gas entry point sealed by adhesive gas-tight foil strip
Inventor: KLOSS WOLFGANG DIPL PHYS
IPC: H01M2/02
Filed: 1978-02-01
Abstract: Housing for air cell driven electrical device, e.g. pocket calculator is designed so that the built-in air cells only receive their air or oxygen supply when they are put into service or use. The housing possesses at least one gas entry point which is kept sealed gas-tight at least prior to putting the cell(s) to use. The gas entry point is sealed by means of an adhesive gas-tight foil or film which can be self-adhesive.
Patent DE-2805366-A1 (DE)
Title: Protein e.g. enzyme immobilisation on porous carrier - with minimal delay between adsorption and covalent binding to give non-homogeneous protein distribution
Inventor: BUCHHOLZ KLAUS DIPL CHEM DR
IPC: C12N11/14
Filed: 1978-02-09
Abstract: Prodn. of water-insol. proteins bound covalently to a porous carrier comprises adsorption of an aq. soln. of a protein carrying -COO- or -NH3+ gps. to an aq. suspension of a finely divided carrier having -NH3 + or -COO- gps. respectively, and subsequently forming covalent bonds by reaction with a carbodiimide deriv. In this process, (a) the dissolved polymer to be bound to the carrier is used in an amt. substantially smaller than the amt. which corresponds to the max. adsorption capacity of the carrier for the protein, and (b) immediately after adsorption of the protein the protein is reacted with the carrier by addn. of a carbodiimide deriv., steps (a) and (b) being carried out within a short space of time such that the protein is only bound to the carrier by surface adsorption; and (c) the resulting prod. is sepd. from the reaction medium. Process enables the protein to be inhomogeneously distributed over the carrier particles. The protein is concentrated on the surface of the porous carrier particles so that effective activity (e.g. enzyme activity) is increased.
Patent DE-2806544-A1 (DE)
Title: Pump delivering small flow rates - has shaft seal chamber connected to liquid inlet pipe feed
Inventor: WEGENER JOACHIM ING GRAD
IPC: F04C15/00
Filed: 1978-02-16
Abstract: The positive displacement pump used for delivering small flow rates, has pump shaft with throttling gap connected to the outlet end. The pressure relieved shaft seal is provided with sufficient cooling and lubricating liquid regardless of small flow rate. The shaft sealing chamber (10) is situated in the inlet end of the liquid feed to the pump. The inlet pipe (11) is connected to the shaft seal chamber (10) and the liquid supply pipe is connected via connection channel (9) to the inlet end (7) of the pump. A rod type heater (17) is built into the connection channel (9).
Patent DE-2812270-A1 (DE)
Title: IC engine ignition distributor - has spark gap size between rotor electrode and additional rotor electrode made less than ignition spark gap
Inventor: INBE TAKASHI
IPC: F02P7/02
Filed: 1978-03-21
Abstract: The IC engine ignition distributor comprises a rotor electrode arranged on the distributor rotor, and stationary electrodes on the distributor cup. The distributor is designed to reduce interference waves arising through the use of a second rotor-electrode. To preserve the resistance action of the main spark-gap, and to initiate the spark in good time by the very weakest corona discharge between the rotor electrode and the second rotor-electrode, the length of the spark-gap between the fixed electrode(s) and the rotor electrode is made greater than 1.0 mm. The second rotor-electrode is made of metal and is arranged on the rotor or on the distributor cap, so that the corona spark-gap between the main rotor electrode and the second rotor electrode is shorter than the ignition spark-gap.
Patent DE-2814114-A1 (DE)
Title: Brake for lift cars - uses capture equipment which is set into operation where buffer path convention starts
Inventor: GRIGOLEIT GUENTER
IPC: B66B5/28
Filed: 1978-04-01
Abstract: The brake for lift cars etc, is used when there is a failure of the drive brake or the operating circuit where the brake can also be used for shock landings in the lower travel limits. It is intended for lifts or load conveyors with capture devices or with speed limiters. Instead of the conventional braking and stopping using capture buffers, the capture device is set into action where usually the buffer path starts. Consequently, the braking operation is carried out up to the point where the lift car comes to rest. The capture device is actually set into action by blutching or engagement by action on the speed regulator.
Patent DE-2819390-A1 (DE)
Title: Security construction for licence plate - with central sheet bonded to upper and lower cover layers with stamped interdigitated patterns
IPC: B60R13/10
Filed: 1978-05-03
Abstract: The security construction of the licence plate has the plate sandwiched between plastic films bonded together at the edges. The films are stamped with front and rear patterns, interdigitated and bonding to the plate in select places. The plate cannot be removed from the package without damage, either from the front or rear. The design can also be used for special certificates and documents.
Patent DE-2821102-A1 (DE)
Title: Lorry for transporting prefabricated concrete sections - has adjustable frame to lock to section and winch operated support frame
IPC: B60P3/022
Filed: 1978-05-13
Abstract: The lorry for transporting prefabricated concrete sections has the sections secured by an adjustable frame (7). This is clamped into the front opening of the section and is secured on a frame (13) which moves along tracks on the rear of the lorry. The whole structure is operated by cable winches and requires no complex lifting booms. The rear of the lorry is braced on the ground by extending struts and the section is lowered to the ground over the rear of the lorry by a vertical unit incorporated in the frame.
Patent DE-2824422-A1 (DE)
Title: Icing preventer for water cart - consists of recirculating pump and heat exchanger and water may be circulated through spray hose
Inventor: PRASZ THOMAS
IPC: B60P3/22
Filed: 1978-06-03
Abstract: The water cart is fitted with a heat exchanger (31) to warm the water drawn into the hose and with a return loop leading to a pump (23) to pump water back into the tank. The pump and heater can be switched on when the vehicle is on standby in cold weather. The system can be applied to any type of water cart using specially plumbed return loops, or with the nozzle of the water pipe clipped into the end of the return loop, so that the hose does not freeze.
Patent DE-2829035-A1 (DE)
Title: Silver or platinum metal catalyst in form of fibre felt - used for ammonia oxidn. and mfr. of hydrogen cyanide and formaldehyde
Inventor: HOHMANN WOLFGANG
IPC: C01C3/02
Filed: 1978-07-01
Abstract: Catalyst of catalytically active metal fibres, consists of Ag, Pt, Rh, Pd or an alloy based on one of these metals, esp. a PT alloy contg. 5-10%Rh, is in the form of a needled felt. Several layers of the needled felt are interlocked, and the edges are consolidated by welding. The catalyst is used in the oxidn. of NH3 and in the mfr of HCN and HCHO. It has satisfactory mechanical dimensional stability and a very large contact area and hence high catalytic activity. It can be produced in a time- and cost-saving manner.
Patent DE-2834317-A1 (DE)
Title: Light intensity modulator - has membrane acting on prism converting acoustic signals into light signals directly
Inventor: FROMM INGRID DIPL PHYS
IPC: G02F1/19
Filed: 1978-08-04
Abstract: A right-angled, isosceles prism of glass is fixed in a stable section of an instrument housing. It has a glass fibre optical, input conductor coupled to one short face so as to deliver light to it, and a glass fibre, optical, output conductor coupled to the other short face for transporting light away from it. A membrane which can be set in vibration by sound waves is supported in the housing parallel to the hypotenuse surface of the prism. Pref. the membrane is held at its edges in a silicone ring attached to the housing. At rest the membrane is at a distance away from the prism equal to or less than the wave length of the light to be modulated, and its surface, at least in the zone of the hypotenuse of the prism, is transparent or absorbent to light. The modulator widens the range of application of optical conductors in telephonic systems and makes it possible to convert an acoustic signal directly into an optical signal.
Patent DE-2839136-A1 (DE)
Inventor: ARLT KLAUS-PETER DIPL CHEM DR
IPC: C08F4/64
Filed: 1978-09-08
Abstract: A process for the preparation of a stereospecific  alpha -olefin polymerization catalyst which comprises (i) forming a solid carrier from an anhydrous magnesium compound and an electron donor compound; (ii) contacting the solid carrier obtained in step (i) with a solution of TiCl4 in an inert solvent; and (iii) reducing the TiCl4 with a reducing agent of the formula AlRnX3-n wherein R is an alkyl group having from 1 to 18 carbon atoms, X is a halogen atom, and n is an integer such that 0<n</=3.
Patent DE-2846436-A1 (DE)
Title: Mixing a solid with a liq. via a spraying nozzle - esp. fine coal mixed with addns. before briquetting for coke mfr.
Inventor: POOS ARTHUR
IPC: B01F25/70
Filed: 1978-10-25
Abstract: A mixt. is made of fine solids and at least one addn. which is sprayed as a mist onto the solids via a nozzle. The nozzle consists of a central pipe (a) with the longitudinal profile of a Laval nozzle; and pipe (a) has at least one side inlet pipe (b) entering towards the end of the diverging part of the nozzle (a) or at its outlet. The addn. is fed via pipe (b) into the nozzle, whereas a spraying fluid is fed through the central pipe (a). The spraying fluid is pref. preheated, and is esp. steam, whereas the addn. is a binder, and/or a solvent, and/or a flux. The pref. solids are fine coal. Esp. the conversion of fine coal with poor or no coking properties into coke for use in a blast furnace. The process may, however, be used for capturing fine dust in filtering plant, or for granulating material (e.g. slag) contg. fertilising elements such as P, N2 and/or potassium.
Patent DE-2849207-A1 (DE)
Inventor: SIEBERT KARL
IPC: E03D1/30
Filed: 1978-11-13
Abstract: The flush apparatus is caracterised by an additional interruption device by means of which only part of the water reservoir (1) flows. For this purpose, a flowing orifice (2) of the reservoir (1) is located at a partial height (H) of the maximum level (27) of water and provided in a conduit (10) connected to an interruption device (30-39) which may be actuated manually. By lifting the shutter (30) by means of the actuating rod (35), the water located above the level (H) may flow through the conduit (10). To avoid a premature return motion of the shutter (30), the actuating rod carries breaking disks (41, 42).
Patent DE-2849377-A1 (DE)
Title: Peat stacking and pressing method - involves positioning stacks on pallet on box with adhesive layers on sacks preventing movement
Inventor: GIPP WALTER
IPC: B65G57/24
Filed: 1978-11-14
Abstract: The method is used for stacking sacks filled with unpressed peat on pallets; the sacks are stacked on the pallet lying both next to and above each other. The sacks lying one above the other are connected by adhesive and the stack is also compressed. The adhesive layer is applied to the lower and/or the upper surfaces of the sacks before they are conveyed to the stacking point, or alternatively before the stacking process or during the stacking process. The compression of the stack of sacks is carried out by either pressing or shaking of the stack.
Patent DE-2849943-A1 (DE)
Title: Burner designed for use in furnace - has tubular resonator chamber with baffle plates to promote turbulence
Inventor: KREUZINGER FRANZ
IPC: F23D11/40
Filed: 1978-11-17
Abstract: The burner is designed for use in a furnace. It is followed by a mixing device, which is in the form of a turbulence resonator (3). This is typically tubular and includes a number of internal baffle plates (31). The baffle surfaces can comprise a set of plates and rings in succession, and at the burner nozzle (4) there can be a further baffle plate (40) with apertures. The resonator can be approximately 18cm long x 12cm wide, with four each baffle plates and rings.