baber/WOPTO huggingface dataset:
Patent DE-1936921-A1 (DE)
Title: Sugar centrifuge drum
Inventor: SCHOTTEN THEODOR
IPC: B04B7/18
Filed: 1969-07-19
Abstract: The drum is made of plastics reinforced with glass fibres and has small protuberances arranged in bands around its inside wall. The areas have band-shaped cover screens so that channels are provided for discharged liquid. More specif., each band forms a ring. The rings are equidistant.
Patent DE-1942597-A1 (DE)
Title: Washing a bore-hole with an aqueous gas-in- - liquid foam
Inventor: OSCAR HUTCHISON STANLCY
IPC: C09K8/52
Filed: 1969-08-21
Abstract: The foam is introduced into the bore-hole via the annular space or a tubular column. The foam is prepared from a gas and an aqueous solution capable of forming a foam. The aqueous solution, per 100 pbw comprises ca 0.005-10 parts of an organic foaming agent having an initial foam level according to the Ross-Miles specification of at least 10 cm. and a cumulative level of at least 30 cm. The foam has a volume ratio of gas to liquid of ca 0.024 to 0.375 Nm3/l.
Patent DE-2016559-A1 (DE)
Title: Drawing pipes
IPC: B21C1/22
Filed: 1970-04-07
Abstract: Pipe drawing machine does not require the use of a clamping block and provides a pair of pipe gripping devices adjacent to the drawing nozzle support. A driving mechanism moves each gripper device of the pair so that successively approaching strands are moved in the same direction along the axis of the drawing nozzle.
Patent DE-2025431-A1 (DE)
Title: Polyvinyl formal binder - for magnetic powder in laminated - recording material on non-magnetic substrate
IPC: C09D5/23
Filed: 1970-05-25
Abstract: A polyvinyl formal is used as binder for the finely-divided magnetic powder in a laminated recording material which has a non-magnetic substrate. Corrosion of metal parts does not occur. The binder aheres well to oxidic magnetic pigments. The magnetic layer has good resistance to abrasion, with reduced friction against polished steel, and good resistance to heat. With polyethylene terephthalate substrates, the magnetic layer shows improved adhesion. High concns of magnetic pigment may be used.
Patent DE-2052884-A1 (DE)
Title: Pill coating process - for completely automatic film coating or sugar coating of pills
IPC: A61J3/00
Filed: 1970-10-28
Abstract: The coating solutions and the drying air are carried in the down flow zone of the circulating pills in the revolving, pill coating, vessel. Pref. solid adjuvants or particulate medicinal substances are charged and dispersed into the vessel by the heater fan.
Patent DE-2144424-A1 (DE)
Title: Dyeing non-bulking polyacrylonitrile yarns - in bath below glass transition temp,contg cationic dyestuff
Inventor: AMEND WERNER
IPC: D06P1/642
Filed: 1971-09-04
Abstract: In the prodn. of PAN yarns dyed with cationic dyestuffs below the glass transition temp., Tg of the yarn, using a dye bath contg. a cationic dyestuff and also a cpd. which swells or dissolves the fibres, followed by the usual rinsing, brightening and drying stages and heat treatment at is not 98 degrees C before making the yarn into flat textile breadths, as in D.T. 2 005 676, yarn which cannot be bulked is used. The technique has the advantage that yarns of this type can be dyed below the Tg.
Patent DE-2155481-A1 (DE)
Title: Heat/exchanger - concentric tube arrangement provides anuli of optimum crossectional areas for both the heat transfering an
Inventor: KUXDORF BERNHARD DIPL ING
IPC: F28D7/12
Filed: 1971-11-09
Abstract: A tubular heat exchanger comprising an envelope with three horizontal tube plates arranged one above the other through which a multitude of tube bundles are passed vertically, whereby each tube bundle consists of an external tube with both ends open and a concentric inner tube. An upper open and lower closed end providing an annular opening for a first medium. The inner tube accommodates a further concentric tube with open ends providing a further annulus for a second medium. The envelope consist of an upper and lower jacket and held apart by the tube bundle arrangement. Both the first and second concentric tube carry distance pieces which are used as scrapers during tube removal operations. The relative small crossectional areas between the individual tubes improve the overall heat transfer efficiency.
Patent DE-2156048-A1 (DE)
Title: Casting mould and core prodn - from foundry sand, water glass ,binder and using lactate hardeners
Inventor: GETTWERT GUENTHER
IPC: B22C1/18
Filed: 1971-11-11
Abstract: Hardeners consist of lactates, opt. admixed with =50 wt.% (calc. on hardener) of phthalates, citrates, acetates or other carboxylic acid esters. Hardener concn. is 1-50 (3-15) wt. % w.r.t. water-glass. Pref. hardeners contain 50 wt. % lactates contg. 1-4 C ester gp. 10-50 wt. % triacetin and/or cyclohexyl acetate and 0-40 wt. % alkyl glycol acetates contg. 1-4 C ether gp., and opt. 5-40 wt. % acetone and/or dimethyl formamide. Compsn. achieves green strength quickly, no gases are evolved, pinhole formation is prevented, and no toxic materials need be used.
Patent DE-2200873-A1 (DE)
Title: Sheathed electrical component - esp hybrid circuit
Inventor: SCHAEFER PETER
IPC: H05K3/28
Filed: 1972-01-08
Abstract: An electrical component, esp. a hybrid circuit with casing and projecting contacts, has the casing constructed as follows (inside to outside sequence) a chemically inert, elastic, electrically insulating sheath, pref. of silicone-based lacquer; a stiff, plastics sheath, pref. of epoxy resin, a multilayer metal sheath. Where the contacts protrude through the metal, they have an insulating covering, pref. of glass. In prefd. method, the second, stiff plastics sheath is applied by dipping or casting, then a first metal layer non-electrolytically and a second metal layer electrolytically.
Patent DE-2209473-A1 (DE)
Title: Assembling internal gear inside rotary piston - by friction welding with third ring
Inventor: STEINWART JOHANNES DIPL ING
IPC: B23K20/12
Filed: 1972-02-29
Abstract: An internally toothed ring is fixed inside the bore of a trilobe piston on a rotary piston engine by rotating this assembly at 1500 rev/min. in contact with a third ring under a pressure of 20 kg/mm2 for about 20 sec. The rotation is then stopped and the pressure increased to 25 kg/mm2. The weld depth is 2-3 mm and the third ring can then be parted off. Accurate placing of the teeth of the gear ring w.r.t. the outer contour of the piston is ensured, and the heat generated does not affect the hardness of the teeth on the gear ring.
Patent DE-2247248-A1 (DE)
Title: Effluent quiescence basin - including spiral of rectangular section with fluid entrance near centre
Inventor: KNOOP ROBERT
IPC: B01D21/34
Filed: 1972-09-27
Abstract: The kinetic energy of effluent arriving at a high speed can be dissipated by an anti-turbulence basin in which the fluid enters in the centre. A spiral with a steadily increasing distance of turns follow and terminates at its open last turn in the fluid exit. The fluid entry pipe is a little off-centre and is joined by a cavity shaped like a streamlined drop. No sudden reversal of direction of flow; small space required.
Patent DE-2312377-A1 (DE)
Title: Prehumidifying fibreboard on back only - to keep front face smooth for painting
IPC: B27N7/00
Filed: 1973-03-13
Abstract: Fibreboard is prehumidified to a desired level of humidity as follows - immediately after pressing (hardening and cooling where used), the boards are humidified on the underside only to the desired temp., esp. 100-200 (130-170) degrees C, then after a brief period the free water is dried off and the boards are stacked or rolled up.
Patent DE-2328701-A1 (DE)
Title: Porous injection mouldings esq. open celled - made in mould with gas permeable wall which retains plastics
Inventor: MAASS EINHART DIPL ING
IPC: B29C44/34
Filed: 1973-06-06
Abstract: Porous injection mouldings from plastics containing expanding agent or reaction gas are made in a mould in which the inner wall is porous for the gases but not for the smelt, the gas escaping from the smelt passes through the porous wall, and in particular is removed under vacuum. In the pref. appts. a double-walled construction is used, the inner wall being porous and the outer well ha ving ducts for the evacuation of the gas, the portions between the ducts acting as supports for the inner porous wall. The porous material may be of sintered metal, or the porosity can be produced by electron bombardment, laser beam erosion or spark erosion. The resultant structure is open-celled and has a good surface finish and is suitable for facing sheets or insulation panels.
Patent DE-2340512-A1 (DE)
Title: Infinitely variable transmission with a differential gear - is operated by a drive motor and a separate control motor
Inventor: SCHEFFLER GUENTER
IPC: F16H3/72
Filed: 1973-08-10
Abstract: The drive motor drives the drive shaft via a differential gear, and the control motor drives the stub shaft. Through variation in the speed of rotation of the control motor with a constant speed of rotation of the drive motor, an alteration is produced in the speed of rotation of the drive shaft. The output of the control motor is held low by means of a transmission between the control motor and the frame of the differential gear which takes up the reverse moment of the frame. The reverse moment may also be taken up by choice of the speed of rotation of the control motor, by choice of transmission or by braking of the frame.
Patent DE-2344297-A1 (DE)
Title: Cooling water temperature regulating fan for motor vehicle engines - is coupled by means of an expansion element and friction clutch
Inventor: KRAG JEP REUTER
IPC: F01P7/08
Filed: 1973-09-03
Abstract: The engine cooling fan is normally not connected. The friction clutch, however, when a certain cooling water temp. has been reached, is displaced by an expansion thermostat element against the preloading spring into the connected position. The fan hub has a friction pad which is pressed against the clutch disc. This clutch disc is connected by splines with the shaft. The clutch plate is held in the engaged position by a spring. The clutch is held in the disconnected state by another spring until the piston which is actuated by the expansion element pushes this spring out of the way.
Patent DE-2345339-A1 (DE)
Title: Digital potentiometer for amplifier gain control - has negative feed-back resistor with one or more parallel resistors
Inventor: KOUBEK MICHAEL
IPC: H03G3/00
Filed: 1973-09-07
Abstract: The potentiometer digitally controls the transistorised amplifier gain, and the negative feed-back resistor consists of a main resistor between emitter and reference potential, determining the amplifier minimum gain, to which one or several parallel resistors are added. It comprises further an electronic counter with two inputs for forward and backward counting, and with parallel outputs. The parallel resistors are between the amplifying transistor emitter and the counter parallel outputs. The parallel resistors in the counter are connected through a switch either with the reference potential or with a terminal for the amplifier transistor base bias voltage. The switch is controlled by the counter reading.
Patent DE-2349162-A1 (DE)
Title: Universal motor automatic speed control - has thyristor bridged by diode and resistor, and supplying series-coupled field and armature windings
Inventor: GROSS-BOELTING FRANZ
IPC: H02P25/14
Filed: 1973-09-29
Abstract: The automatic speed control for universal motors supplied over a thyristor from an a.c. source has the thyristor gate coupled to a voltage divider connected in series with a diode and a potentiometer across the supply. The divider has three resistors, two of which are bridged by a capacitor and their junction connected over a diode to the thyristor gate. The thyristor is bridged by the series combination of a variable registor and an identically poled diode. The motor field winding and its armature are in series with the thyristor. The field winding is connected in front of the thyristor and behind the armature. The field winding may be divided into two identical parts by the armature or possible also by the thyristor.
Patent DE-2350372-A1 (DE)
Title: Zero point corrector - with method for mechanical zero position setting on machines
Inventor: KOLLER HERBERT DIPL-VOLKSW ING
IPC: B23D47/06
Filed: 1973-10-08
Abstract: The method for zero position setting in length or angle measurement entails two arrangements (a) for a balance piece to move between two parts which are adjustable relative to each other, (b) for a balance piece to be itself adjustable. The zero corrector can slide upon and can be affixed to the balancing piece, and fits into a cavity where it grips into the metering arrangement of the machine. The latter is an established precision measuring arrangement. The balancing piece has a form of a rectangular slab. The zero point setter is also fitted into the micrometer rotary movement.
Patent DE-2351849-A1 (DE)
Title: Connecting system for collapsible cable drum - using connecting elements made up from tension locks with counter bearings
Inventor: BAUER ERNST
IPC: B65H75/22
Filed: 1973-10-16
Abstract: Connecting device for collapsible cable or wire drum has connecting elements for the core which may consist of several sections and for the plates with all the individual parts of the detachable connecting elements rigidly attached both to the core and to the plates. The connecting elements are made up from a tension lock, a counter bearing attached to one part of the coil (core or plate) with the tensioning piece connected to the other part. There are several connecting elements distributed over the core circumference, with each core section fitted with at least two axially opposed counter bearings or tension supports.
Patent DE-2354760-A1 (DE)
Title: Disposable powder container for dry copier - has groove-shaped arresting opening in end face of inner tube engaging toggle connected to powder station
Inventor: JONAS WALTER KARL
IPC: G03G15/08
Filed: 1973-11-02
Abstract: The disposable powder container is for use in a powder station of a dry copier and has a cylindrical inner tube and an outer tube positively seated on it, both with aligned powder exit openings and rotatable relative to one another. The inner tube end face has a groove-shaped arresting opening, in which engages a stationary toggle connected to the station, through an opening in the end face of the outer tube. The end face has ear-shaped projections which project through a corresp. shaped guide into the station when the container is fully pushed into the guide. Emptying or opening of the container is only possible when the container is in the station, for powder to be let out.
Patent DE-2355562-A1 (DE)
Title: Unreeling stop for automatic vehicle safety belt - has bolt in lower part of door hookable to pawl to transmit sensor movements
Inventor: ROSSIE EGBERT
IPC: B60R22/41
Filed: 1973-11-07
Abstract: Unreeling stop for automatic motor vehicle safety belts in the lower part of the vehicle door and releasable by an inertial sensor has a bolt in the lower part of the door displaceable with operative connection to the stop and, when the door is closed, pushed against the pressure of a spring toward the outside of the vehicle and abutting the door sill. When the door is opened, the spring pressure latches the bolt with its other, hook-shaped end to a pawl which transmits the movements of the inertial sensor to the unreeling stop.
Patent DE-2356335-A1 (DE)
Title: I.C. engine fuel injector system - has disc shaped magnetic coil to repel aluminium disc
Inventor: STURM HERMANN
IPC: F02M57/02
Filed: 1973-11-10
Abstract: The fuel injector has a fuel supply at constant pressure via a non return valve, so that the fuel can enter the nozzle chamber but only leave by the nozzle jets when the plunger descends. The plunger is actuated by a magnetic drive consisting of a disc shaped coil excited by a regulator unit synchronised for timing and duration according to engine requirements. The coil when excited repels a disc shaped aluminium plate fixed to the plunger head, this causes the fuel in the nozzle chamber to be expelled. A return spring fitted between the injector body and plate effects the plungers return.
Patent DE-2404082-A1 (DE)
Title: Concrete construction covering plate - has longitudinal or cross joint and connection bar for half plate thickness
Inventor: MEHRINGS ANTON
IPC: E01C5/06
Filed: 1974-01-29
Abstract: The covering plate has a blind, groove-like joint running either longitudinally or crossways from the upper side of the elements downwards, which is formed in stretches down to the bottom side. At its other sections it forms a connection bar separated from the bottom side. A connection bar extends upwards to approximately half the thickness of the plate(s) from the bottom side which may be essentially triangular in shape, one of the sides of the triangle resting on the bottom side of the element. The covering plate is so designed that any tendency to fracture during transportation is avoided.
Patent DE-2410585-A1 (DE)
Title: Pulse length-voltage transducer - timing condenser charged during pulse and discharged to measure during gap
Inventor: HECKER WALTER
IPC: G01R25/00
Filed: 1974-03-06
Abstract: A transducer derives a voltage from pulse spacings, for the measurement of varying phase relationships between pulse spacings or pulse lengths of two pulse trains having two similar channels linked together wh ich are fed alternately by a channel switched in time with a reference pulse train so that in the i-th period of the reference signal isolated from the output unit a linear charging of a timing condenser is effected until the next pulse arrives, with a retention of a measure of the charge by a holding unit. In the (i+1) th period the condenser is discharged and the measurement passed to the output unit. Similar charge-discharge processes take place in the opposite sense in the other channel.
Patent DE-2413778-A1 (DE)
Title: Cylinder liner clamping arrangement - has tangential rod to operate wedges forcing circumferential support balls radially
Inventor: VOGELMANN ERICH ING GRAD
IPC: B23Q3/06
Filed: 1974-03-22
Abstract: The method of clamping the liners at one end by forcing them onto bushings does not eliminate distortions and/or vibrations during machining operations on the internal surfaces. On the present arrangement the movement of the rod actuating the radially placed wedges, which lift off the supporting balls from the circumference of the liners can be controlled from a power cylinder. The balls are spring loaded, the action of the springs force the balls down and towards the outer liner surface due to tapered inner gliding surfaces on the holder ring.
Patent DE-2421677-A1 (DE)
Title: Blown glass articles with internal decorative membranes - produced by inserts with recesses into parison before final blowing
Inventor: BILLIOTTI SERGIO
IPC: C03B9/193
Filed: 1974-05-04
Abstract: Blown glass articles with internal decorative membranes are produced by dipping first into the glass mass in the mould an insert which has a transverse, star or cross shaped recess of the coarse shape of the intended membrane. The parison is then removed from the first mould and is blown to the final shape which also thins the membranes down to the desired thickness. This is the only system to produce internal protruding decorative membranes in blown glass articles which retain a smooth and bright external surface.
Patent DE-2426725-A1 (DE)
Title: Sliding door for agricultural tractor cabins - has inclined track to reduce wear on bottom seal
Inventor: SENGEWITZ LOTHAR
IPC: E05D15/06
Filed: 1974-06-01
Abstract: The sliding door is guided on a track, in the longitudinal direction of the cabin, to which it is fastened. A lip seal is positioned between lower door edge and door sill. In the direction of closing of the door (1), the track (7) is inclined towards the door sill (6). The roller bodies (10, 11) supporting the door, are fastened to it, relative to the inclination of the track, so that the lower door edge (12) always extends parallel to the door sill. The sliding door is constantly subjected to a brake unit. The seal (13) may be fastened to the lower door edge.
Patent DE-2429891-A1 (DE)
Title: Quantity of heat measurement method - is for heat carried by fluid medium to consumer or from generator
Inventor: BUSSARD MAURICE
IPC: G01K17/16
Filed: 1974-06-21
Abstract: The apparatus includes an electric heat integrating device; a volume measuring device, and resistance thermometers before and behind the consumer or generator. The two temperature values present as resistances are converted into two proportional voltage levels which trip through two differential amplifiers a gate into its conducting or blocked state when, in presence of a volume pulse, a saw-tooth voltage reaches a first or a second level. Pulses from an oscillator are applied during a time interval, function of temperature, through a stepping down circuit and an amplifier to a counter displaying the quantity of heat. The gate controls one of two test value paths.
Patent DE-2432426-A1 (DE)
Title: Corrosion resisting light tubular mast - has protective metal spray and synthetic resin seal on rust-proof steel
IPC: B05D7/14
Filed: 1974-07-04
Abstract: Tubular mast, particularly for lights, of weather resistant steel has its surface roughened, and an aluminium layer sprayed on. It is covered with a layer of synthetic resin. Where a mast is exposed to particular corrosive action, e.g. sea air, the aluminium may be alloyed with magnesium or naganese. Masts may also have zinc coating 50 microns thick and then an aluminium coating of usual thickness of 100-300 microns. The metal may also be given greater density through mechanical pressure. The mast tube can be bent without damaging its protective coat and it can withstand mechanical stresses. The protection is given through the iron oxide forming on the steel surface and the aluminium layer whose pores are closed by the synthetic resin.
Patent DE-2435774-A1 (DE)
Title: Electronic starter for cold start fluorescent lamps - has capacitive ballast cct. with capacitor in series with lamps
Inventor: EIGNER REINHOLD
IPC: H05B41/04
Filed: 1974-07-25
Abstract: In order to start a fluorescent lamp, the capacitor is charged during one polarity of mains voltage half-wave. IT is added during next half-wave to the mains voltage, so that it is sufficient to start the lamp. A thyristor is used for capacitor charging. Its anode is connected to a diode anode, whose cathode is connected through a series circuit consisting of a second capacitor, a first resistor and a third capacitor, to the thyristor chathode. The two capacitors are each shunted by a resistor. A junction point between the first resistor and third capacitor is connected to the thyristor control electrode.
Patent DE-2436323-A1 (DE)
Title: Position information transmission system for tracked vehicle - vehicle has read head for scanning fixed data carriers
Inventor: BECKER HEINZ
IPC: B61L25/04
Filed: 1974-07-27
Abstract: Two different sets of independent data are read from the fixed data carriers, spaced along the path of movement of the vehicle, by means of a timing read head and one or more information read heads, during the movement of the vehicle relative to the fixed data carriers. The sets of data are supplied to a storage register and the selection of the stored data ia dependent on the direction of movement of the vehicle, for supply to an optical display inside the vehicle, e.g. to indicate the position along the route of the latter. The read head unit pref. employs two adjacent metal feelers, the output of one connected to the clock input of the register and the output of the other to the data input of the register.