baber/WOPTO huggingface dataset:
Patent DE-2157007-A1 (DE)
Title: Finned tube mfr - by the uniform application of solder to a helically wound metal band on a core tube
Inventor: THAMASETT EBERHARD DR ING
IPC: B23K1/08
Filed: 1971-11-17
Abstract: Finned tubes are made by helically winding a metal band edgewise onto a core tube that was previously immersed in a soldering bath, ie. dipped in a tinning or galvanizing bath. After immersion the structured core tube is wiped or beaten and the fins are wound on in the usual manner. Finally the core tube is soldered to the fins by the application of heat.
Patent DE-2200411-A1 (DE)
Title: Protective layer on water-exposed builder surfaces - - using alkali(ne earth) metal poly acrylate or polymethylacrylate an
Inventor: AHRNBOM LARS
IPC: C23F11/08
Filed: 1972-01-05
Abstract: The protective layer is obtd. by treating the surface with a hot soln. contg. an alkali metal or alkali earth metal polyacrylate or polymethylacrylate salt and pref. a hydrazine salt or hydrazine itself at 225-285 degrees C. The mol.wt. of the prefd. sodium polyacrylate is 80,000-100,000 and the soln. contains 50 g. of sodium acrylate/t of water and 5-10g. of hydrazine/t. of water. The inside surface of the boiler is exposed to compressed steam. The soln. and loose particles are removed by the residual pressure of the steam. The layer is more adhesive than that obtd. using other methods.
Patent DE-2222499-A1 (DE)
Title: Smokeless nitrocellulose powder prodn - by treating with ester
Inventor: WAGNER COONER WILLIAM
IPC: C06B45/22
Filed: 1972-05-08
Abstract: The nitroceullose - based powder is coated with water insol. ester(s) in which the solubility of nitrocellulose in between that in ethylene dimethacrylate and that in ethylene dipropionate, inclusive. Coatings prevent premature combustion without affecting ballistic props. Prods. have high density, good chemical stability, high speed-press. ratio and low ignition temp, and are used in 1- and 2 stage propellant charges and in powders for hunting and military use.
Patent DE-2244495-A1 (DE)
Title: Packaging stacks of plastic bags - by slot welding through projecting flaps while stacks are still on conveyor used for stacking
Inventor: SCHULZE ERHART
IPC: B31B19/98
Filed: 1972-09-11
Abstract: A stacking device, intended for use with a bag-making machine, receives and stacks the bags on a stepping conveyor fitted with intermittent arresters extending across the conveyor path. Fixing sockets or the like are fitted at one or both sides of the stacking area, so that a trestle or table can be mounted in these sockets, to stand above the stacking area. This table is used for mounting a machine used for stitching or packaging the bags into bundles while they are still on the conveyor. A prefd. form of this machine is fitted with a slot-welding plunger which descends through the bundle to weld together flaps projecting beyond the mouths of the bags.
Patent DE-2258422-A1 (DE)
Title: Concrete reinforcing grid welding machine - has transversely displaceable strut supporting plate
Inventor: WAGNER EDMUND DR
IPC: B23K11/00
Filed: 1972-11-29
Abstract: Concrete reinforcing grids are mfd. by spot welding on assembly of steel rods in a machine with a carrier plate for the connecting struts and electrodes, the carrier plate transversely displaceable in relation to the longitudinal struts to which the connecting struts have to be welded. The electrodes act in conjunction with complementary electrodes fitted to a stationary part of the machine. The carrier plate pref. contains locating surfaces for the bent portions of the struts, and is easily interchangeable.
Patent DE-2264553-A1 (DE)
Title: Magnetic tape for video recorders
IPC: G11B23/26
Filed: 1972-12-01
Abstract: Magnetic tape for video recorders has broad, rigid leader to facilitate automatic take-up and transport
Patent DE-2265141-A1 (DE)
Title: Injection/blow moulding plastic containers - by supplying preforms from one injection moulding unit to several blow moulding units
Inventor: NEUMAIER ROBERT
IPC: B29C49/06
Filed: 1972-08-17
Abstract: Plastic containers are produced by combined injection/blow moulding by (a) forming a preform on a mandrel by injection moulding, (b) withdrawing the preforms from the injection mould on the mandrel at a greater velocity than their shaping in the blow moulds, and (c) simultaneously blow moulding two or more preforms into the final pdt. in two or more blow moulds. Increased productivity is achieved, as several preforms from the more rapid injection moulding operation are blow moulded simultaneously by the slower blow moulding operation.
Patent DE-2331116-A1 (DE)
Title: Strip-form welder cutter - for plastic films, e.g. in plastic bag prodn
Inventor: KAROLYI OSKAR
IPC: B26F3/06
Filed: 1973-06-19
Abstract: In an appts. for the cutting and welding of two superimposed heat-sealable plastic films, e. g. for the prod. of plastic bags, the heated strip welder, which cuts through the films and welds them together on each side of the cut, has a cross-section widening in wedge form over at least part of its height. This is opposite to its direction of cutting, and in particular is V-shaped. Even if the strip-welder is tilted or bowed out, it can still produce a satisfactory seal on either side of the cut without requiring undue pressure to be used.
Patent DE-2332515-A1 (DE)
Title: Milling container of vibratory mill - has milling space divided into interconnected control zone and milling zone
Inventor: GOCK EBERHARD DR ING
IPC: B02C17/14
Filed: 1973-06-22
Abstract: The zones are spaces of const. cross section along the vibration axis of the mill, or their cross sections may vary along this axis; their arrangement is dependent on the sense of rotation of the vibratory excitation, so that an advancing motion of the milling body filling results, from the control zone toward the milling zone. The advancing and unloading motions of the milling body filling occur, between control and milling zones, through a free connecting cross section at the floor of the milling container. The course of motion in the milling zone is determined by the advance and unloading in the control zone, and a narrow energy distribution spectrum can be produced in the milling zone, specific for each milled material.
Patent DE-2336419-A1 (DE)
Title: Current distributor and light fitting holder assembly - has plug-in unit clipping into U-shaped rail part with contacts
Inventor: PRICE EDISON AVERY
IPC: F21V21/34
Filed: 1973-07-13
Abstract: The current distributor and light fitting holder assembly has a rail part with a U-shaped cross section open from below, and grooves forming shoulders on the insides of the U sides. A retention rail runs along the inner ends of the arms and has two spaced conductor rails. A plug connector is inserted between the arms of the U and connects via contact springs with the conductor rails. The plug connector has ratchet hooks protruding from it, which engage in the grooves and hold the connector onto the rail part. The assembly simplifies the replacement of light fittings and their supply rails.
Patent DE-2344401-A1 (DE)
Title: Dismantlable pedal paddle boat drive - has crankshaft mounted on side plates and coupled to paddle spindles
Inventor: LINDNER ALFRED
IPC: B63H16/20
Filed: 1973-09-03
Abstract: Pedal boat drive with revolving paddles is easily mounted in, and dismantled from, collapsible boats, with a fixed or collapsible frame which can be attached to the rubber eyelets or wooden boat floor. The frame mounts the crankshaft with side plates whilst the crankshaft spindle receives the spindle of the revolving paddles and positively rotates it via a plug or screw connection. Pref. the side plates are releasably connected by screw washers or commercial star grips via the angle pipe pieces, pipes, and adjusting rings with the rubber eyelets, and to the baseplate by angle and butterfly or lock-screws.
Patent DE-2345093-A1 (DE)
Title: Tariff and maximum demand release circuits - are operated at exact, always the same times by a tariff time switch with a maximum switch
Inventor: HASELBECK WILLI
IPC: G01R11/58
Filed: 1973-09-06
Abstract: The circuit comprises a set of bipolar relays for a tariff circuit switching, with a relay allocated to a tariff switch and to the maximum switch whose contacts lie in the bipolar relay circuits. The relay coil allocated to the maximum switch is in parallel with it, and the relay coil allocated to the tariff switch is in series with it. The bipolar relay can be connected through one of two antiparallel diodes to the mains by a changeover switch belonging to the relay allocated to the tariff switch.
Patent DE-2352342-A1 (DE)
Title: Counting rate meter with constant current source - has linear-logarithmic transducer elements
Inventor: ODA MINORU
IPC: G01R23/06
Filed: 1973-10-18
Abstract: A device reacts to the measured counting rate of input pulses and produces a proportional signal flow. A pair of linear-logarithmic transducer elements are connected so as to produce an output voltage formed from an intermediate voltage. The signal current is made to flow through the first transducer element. a bias current is generated from a constant current from a constant current source and a signal current and is led through the second transducer element. the constant current has a value equal to a saturated value of the signal current arising from a counting loss at high pulse frequencies. The intermediate voltage gives a logarithmic representation of the measured counting rate.
Patent DE-2352748-A1 (DE)
Title: Suspended grid slitted-strip ceiling - with strips in one direction top-slitted and in other direction bottom-slitted
Inventor: BIALAS RUDOLF
IPC: E04B9/34
Filed: 1973-10-20
Abstract: The grid pattern under ceiling is composed of metal, plastic or other strips, with slits running to their middle for insertion of intersecting strips running at right angles to them, as used for indirect lighting or for acoustic effects. In one direction the slits run from the top edges of the strips, and in the other from the bottom, the former having a corresponding resess at one end face from top edge to middle, and the latter a projection at one end from top to middle. Adjacent strips of the first group are mutually displaced and turned through 180 deg., adjacent ones of the second group being merely mutually displaced. The strips may have matching cutouts in their bottom edges, and there may be holes near the top for carrier or adjusting bars. Easily manufactured and transported, this can be installed from above or from below.
Patent DE-2357468-A1 (DE)
Title: Metering pump with reciprocating and rotating piston - has piston in bearings with gap between piston and cylinder
Inventor: ORLITA FRANZ
IPC: F04B7/06
Filed: 1973-11-17
Abstract: The pump has a cylinder with inserts in its sides forming inlet and discharge ports. The piston has a hollow inside and a port in one side. It revolves as it reciprocates so that its port moves from the inlet to the discharge of the cylinder and compression takes place inside the piston. The piston is machined to leave an easy clearance between itself and the cylinder. As no rubbing takes place, no expensive surface finishes are necessary. The piston runs in journals bearings fitted in recesses in the cylinder and has circular seals at its driving end. Sealing fluid is admitted through a passage in the cylinder between the sealing rings.
Patent DE-2357688-A1 (DE)
Title: Crystal pulling furnace induction heating coil - with outer turn silicone rubber embedded in groove of inner turn
Inventor: KELLER WOLFGANG DR
IPC: H05B6/30
Filed: 1973-11-19
Abstract: The induction heating coil for the crucible-less zone melting of semiconductor rods in an inert gas atmos. consists of two turns. The outer turn is located in an annular groove of the inner turn and is coated with a thermally stable insulation of silicone rubber. This forms an excellent protection of the outer winding against mechanical and electrical damage. Inter turn spark-overs would harm the crystal quality.
Patent DE-2363094-A1 (DE)
Title: Push-pull amplifier - has high output current and limited short-cct. current
Inventor: MADERITSCH MANFRED
IPC: H03F3/30
Filed: 1973-12-19
Abstract: A pair of complementary transistors is connected with each other and with the output by their emitters, and their collector-emitter paths are inserted between a supply voltage source terminals. One of them (control transistor) is controlled at its base by an input signal. A third transistor, of the same conduction type as the second, collector-emitter path is also inserted between the voltage source terminals, and its collector is connected through a diode to the output. Output current flows through the second or the third transistor and the diode, depending on the input signal. The third transistor base is connected to the control transistor collector, and its collector to the second transistor base.
Patent DE-2364498-A1 (DE)
Title: Heating element with movable faces for bread toasters - adapts to outline and thickness of bread ensuring even toasting
IPC: A47J37/06
Filed: 1973-12-24
Abstract: The heating element comprises individual contact surfaces which adapt to the outer contour of the bread slice so that slices of any thickness or uneven shape are still browned evenly. The grid-like element is heated by a contact plate of a heating member embedded inthe housing and the individual contact members are spring operated to return to their initial position when the bread is removed. The heating element can be formed in one piece with several resilient elements which may be round, square or hexagonal linked together in honeycomb fashion.
Patent DE-2406055-A1 (DE)
Title: Planktol oil substitute from sugar - for use as heating and lubricating oil
Inventor: BERTRAM KURT DR
IPC: C10L1/02
Filed: 1974-02-08
Abstract: Planktol, an oil-like material, is made by combination of carbon, hydrogen, acetic acid and is useful as light heating oil, motor oil and gear oil (combined with graphite). It is prepd. by heating sugar-carbon (formula C6H12O6) with water to 160 degrees C, adding, in the cold, 100% acetic acid, 85% sulphuric acid, 50% caustic soda and esterifying with alcohol. The prod. is non-polluting and the raw materials easily obtainable.
Patent DE-2406777-A1 (DE)
Title: Exhaust gas wash liquor residues utilisation - by adding ground pitch as binder and moulding
Inventor: HOELTER HEINZ
IPC: C04B18/06
Filed: 1974-02-13
Abstract: The residues of washing exhaust gases contg. dust and/or SO2 and similar products are utilised as in the parent patent by adding ground pitch as a filler, drying in air at raised temps., moulding, curing and changing the crystal structure by dipping in water. Acid-resistant, insulating articles may be produced.
Patent DE-2407256-A1 (DE)
Title: Optical unit for rotating laser beam polarization in laser store - uses prisms and flat plates to rotate angle of polarization
Inventor: KUTTNER PAUL DR
IPC: G02B13/10
Filed: 1974-02-15
Abstract: A combination of plates and prisms for rotating the angle of polarization, equalizing the intensity of radiation at that angle and at right angles to it, and of transmitting the circular cross sectional laser beam into an elliptical aspect, is presented. The device is for use in laser beam based storage units. A laser beam of circular cross section, polarized in two directions at right angles, is fed into a prism, a second prism, a flat glass plate slightly offset from right angles to the beam, and a quartz plate at right angles to the beam, in that order. The effect is to rotate the angles of polarization by 45 deg., to equalize the intensities of radiation at these angles, and to produce a beam of elliptical cross section. a wavelength of 514 nm is used.
Patent DE-2411013-A1 (DE)
Title: Wrapping tyre cord around drum without stretching - to avoid unevenness in tyre cord layers
Inventor: SALOW ALEXANDR IWANOWITSCH
IPC: B29D30/18
Filed: 1974-03-07
Abstract: Beading is handled, when a tyre carcase is assembled on the tyre-forming drum, by gripping the layers of tyre-cord hanging from the drum between gripping elements, folding the layers around the shoulder of the drum, applying the beading, and then folding the layers back around the beading and up the shoulder. The point at which the layers are initially gripped by the elements is defined by the length from the centre-line of the drum, which is the sum of the distance to the point at which the beading will be applied, and the distance from this point to the point at which the inner gripping element stops before it starts to bend the tyre cord layers back around the beading; after the layers have been gripped at this point, the gripping elements are moved directly towards the centre of the drum. A fixed gripping point is used for the first wrap around the shoulder of the drum; this avoids uneven stretching of different layers of tyre cord, and improves the uniformity of the tyre.
Patent DE-2416456-A1 (DE)
Title: Vehicle for carrying sand - has metering roller driven by friction wheel for measuring sand when deposited
Inventor: BECK HERMANN
IPC: E01C19/20
Filed: 1974-04-04
Abstract: The sand is metered as it is moved from the lorry platform onto the road using a motor driven metering roller. The e.g. electro, hydraulic or pneumatic motor of the roller of a generator, hydraulic pump or air pressure pump is driven by a link from a friction wheel which is positioned on a wheel of the lorry and can be lifted off. The operating connection between the rollers is achieved by pressure hydraulics and enables a normal lorry to be adapted without alterations to the lorry. The lorry can have a normal tipping back to supply the roller with sand until the contents are used.
Patent DE-2418106-A1 (DE)
Title: Dry soldering metal foils to ceramic substrates - using flexible carbon felt pressure bolster to ensure uniform surface contact
Inventor: SCHLAPP WINFRIED
IPC: H05K1/03
Filed: 1974-04-13
Abstract: A dry soldering process for the high-strength metallisation of a ceramic, glass or other oxidic substrate by pressing a metal foil contg. an active metal onto the substrate and heating the assembly in an inert atmos. or high vacuum at a temp. below the m.pt. of the metal. Intimate contact between the metal foil and the ceramic, required during heating, is obtd. using pressure applied via a flexible, heat-resistant pressure bolster which does not react with the foil. The bolster is pref. carbon felt, or carbon powder put on top of the foil and, if required, covered by a heavy, heat-resistant body inert to carbon for raising the pressure. Method is used for mfr. of ceramic-metal joints, etc., for strip conductors or integrated circuits.
Patent DE-2424628-A1 (DE)
Title: Height adjustable man hole covering system - has concrete and metal construction with means of raising the level of the manhole cover
Inventor: LANG ERWIN
IPC: E03B9/08
Filed: 1974-05-21
Abstract: A height adjustable manhole (1) covering system in partic. for hydrants or valve gear systems is constructed so that the surrounding outside jacket (5) has a screw type profile and that in the region of the inner jacket (7) ridges (16) or recesses are present to contact with the raising or screw device of adjustable height. The manhole (1) is constructed from a combination of metal and concrete with the cover (3) and cover retaining bezel (3) made of metal and the throat and base section (4) made of concrete. The walls of the throat and base (4) are conically sloped to produce a larger base cross-section (6) than throat cross-section.
Patent DE-2429203-A1 (DE)
Title: Extrusion of elastomers - with automatic regulation of feed by sensors
Inventor: NOWAK HELMUT
IPC: B29C48/06
Filed: 1974-06-18
Abstract: In the continuous extrusion of elastomers, e.g. silicone rubber, into tubes, profiles, cable coverings etc, the material passes from a limited-capacity container and then for a free distance before being extruded, this distance being at least equal to the product of the extrusion process speed and the time for periodical replacement of the container with fresh material.
Patent DE-2434509-A1 (DE)
Title: Bituminised roofing strip with polyethylene terephthalate support - strengthened by impregnation with binder dispersion contg acrylic copolymer and aminoplast
Inventor: PLOETZ KURT
IPC: E04D5/10
Filed: 1974-07-18
Abstract: Parent patent DT 2345484 describes a bituminised roofing strip contg. a non-woven random-spun web of synthetic polyester filaments as support. According to present Patent of Addn., random web consists of synthetic polyester filaments having m.pt >=250 degrees C, esp. of polyethylene terephthalate filaments having individual titre 3-15 dtex, which are impregnated and bonded with 10-30 wt. %, w.r.t. non-soaked web, of an aq. neutral to weakly alkaline binder dispersion with 10-60 wt. % solids contg. a copolymer contg. by wt. 45-55% acrylate or methacrylate of 1-8C monohydric alcohols, 24-30% acrylonitrile, 12.5-30 % styrene, 0.5-2.5 % acrylamide, prepd. by emulsion polymerisation in presence of anion-active and/or non-ionic emulsifiers and activators, and 10-30 wt. % melamine-HCHO pre-condensate, so that stretch sail-like reinforcements are present between filaments. Reinforced fleece has surface wt. 80-300 g/m2, strength 20-100 kp/5 cm; elongation at break 25-50%; further tear strength 4-9 kp. Bituminised strip has tear-strength 30-100 kp/5 cm, elongation at break 20-60% elastic extension 1-5%, further tear strength 2-8 kp. nail tear out resistance 13-30 kp and bending strength >5000 revolutions.
Patent DE-2435133-A1 (DE)
Title: Hand winding reel with load supporting lock - mating gears have dead zone surface profile for locking position
Inventor: LIFFERTH HENRY ROBERT
IPC: B60J7/057
Filed: 1974-07-22
Abstract: A hand operated winding reel for tape or wire has a geared mechanism for ease of operation and a self locking arrangement to prevent unwinding when required. The winding drum (13) is coupled rigidly to a large diameter gear wheel (14). The profile of the gear wheel is such groups of teeth (32) are separated by a concave profile (33). A drive gear of much small diameter (23) carries a larger number of teeth than in the groups on the large gear. A convex profile on the small gear matches that on the larger gear. When the winding handle is continuously rotated the tape is wound with small pauses as the convex-concave surfaces pass each other.
Patent DE-2438099-A1 (DE)
Title: 1H-2,1,4-Benzothiadiazin-3-yl-carbamates - with anthelmintic, fungicidal and acaricidal activity
Inventor: KOELLING HEINRICH DR
IPC: C07D285/16
Filed: 1974-08-08
Abstract: of formula (I) are new: (where R and R1 are H, opt. substd. alkyl, halogen, haloalkyl, opt. substd. alkoxy, NO2, opt. substd. amino, CN, or opt. substd. alkoxycarbonyl; R2 is opt. substd. alkyl, alkenyl or alkynyl; R3 is H, opt. substd. acyl or opt. substd. alkoxycarbonyl; X is O or S). (I) are anthelmintics active against nematodes and cestodes, and also have fungicidal and acaricidal activity.
Patent DE-2440381-A1 (DE)
Title: 2-(4-Phenylthio-phenyl)-alkanoic acids - prepd. e.g. by reacting 4-phenylthio-phenols with ketones and trihalo-methanes
Inventor: LAURIA FRANCESCO
IPC: A61K31/095
Filed: 1974-08-23
Abstract: Alkanoic acid derivs. of formula (I) (where R1 is H or 1-4C alkyl; R2 is H, halogen or 1-4C alkyl; R3, R4 and R5 are H, halogen and CF3, at least one of r3, R4 and being CF3; and n is 0, 1 or 2), e.g. 2-(4-(4-trifluoromethylphenylthio)-phenoxy)-propionic acid, and their pharmacologically acceptable salts are new cpds. (I) have high hypolipaemic activity) compared with that of e.g. clofibrate, and the ratio of hypolipaemic dosage to hepatomegaly-inducing dosage is more favourable than that of known hypolipaemic agents.