baber/WOPTO huggingface dataset:
Patent DE-2365070-A1 (DE)
Title: Exhaust air purifier for industrial application - has fan, heating spiral and filter, with upper air outlet pipe
Inventor: KUHLMANN HEINRICH
IPC: B01D46/10
Filed: 1973-12-28
Abstract: Cleaner for exhaust air containing noxious components has a cylindrical housing with a hopper-shaped screen at its bottom end and a separate lid at its top end, with air outlet connections. A vaned fan is in the lower part of the housing, and a heating spiral is spaced above it, with a filter, such that the air sucked by the fan via the screen is combusted in the region of the spiral and the noxious materials after separation by the cold filter are absorbed, while the purified air leaves the housing via the connection. The appts. may also be used for household, hospital, or office air exhausts.
Patent DE-2366064-A1 (DE)
Title: Production of prussian blue - by reacting sodium ferrocyanide with ferrous chloride and potassium chloride in a single step
Inventor: REINHARDT HELMUT DIPL CHEM DR
IPC: C09C1/26
Filed: 1973-12-10
Abstract: Prussian Blue is obtd. by reaching Na Ferrocyanide with Fe (II) salts, treating the ferrocyanic acid obtd. with K salt and oxidising the Prussian White to Blue, the pptn. being effected at pH 7 forming an acid Fe (II) salt (FeH2Fe-CN6). The method is now simplified by using initially Fe (II) salts of 2-6 mole% in excess of the amt. required stoichiometrically, and by adding subsequently the three reactants together in stoichiometric amts. and at a pH 1. The Prussian White is formed at 20-60 degrees C. The conversion can be speeded up by raising the temp. to b.pt. Pref. the three reactants are introduced at the same time but through separate feeding devices. The reactor is pref. charged first with sufficient water so that after introduction of the reactants the suspension can be stirred immediately. Suitably the K salt soln. and the ferro salt soln., or a mixt. of the two are charged first. In this case Prussian White is formed immediately after addn. of the other reactant. Pptn. is effected at 30-50 degrees C, pref. at 40 degrees C. After conversion the temp. may be raised to b.pt. by using steam to speed up the end of the reaction.
Patent DE-2415075-A1 (DE)
Title: Needle shaped polyoxymethylene crystals from trioxane - using boron trifluoride and water as polymerising agents
Inventor: IGUCHI MASATOSHI
IPC: C08G2/00
Filed: 1974-03-28
Abstract: Needle-shaped crystals of polyoxymethylene are prepd. by (a) dissolving trioxane in an anhydrous, non-polar solvent, (b) adding BF3 or a BF3 complex, and a amt. of water less than equiv. to the BF3, and (c) keeping the soln. at a pre-deterined temp. Mono-crystals, 5-100 mu m long and 1-3 microns thick, are produced; the mol. chain is oriented in the lengthways direction in the crystal. The crystals resemble whisker-form mono-crystals. The crystals can be used as reinforcing fillers in synthetics and other materials.
Patent DE-2421208-A1 (DE)
Title: Saw frame balancer - with compensation of residual forces causing resonant vibrations
Inventor: ESTERER MAX
IPC: B27B3/12
Filed: 1974-05-02
Abstract: Saw frame balancer comprises a first counterweight mounted eccentrically on each of the two frame flywheels, and a coaxial, counter rotating, symmetrical second counterweight which is coupled to the flywheel for rotation at the same speed. The two counterweights are of equal wt. and dia., and produce inertia forces equal to and counteracting those of the pivoting masses of the frame. Associated with each second counterweight are two additional counterweights counter rotating at twice the speed so that they pass through BDC when the second counterweight is passing through TDC or BDC. The relation between the wt. and dia. of the additional counterweights and the path of rotation of their centre of gravity provides a centrifugal force equal to a quarter of the difference between centrifugal forces at TDC and BDC of the pivoting frame masses.
Patent DE-2423479-A1 (DE)
Title: Multiple signal circuit for door bell unit - uses two anti-parallel diodes as resistor connected to push buttons
Inventor: WEYEL ARMIN
IPC: H04M11/02
Filed: 1974-05-15
Abstract: The AC signal circuit has a resistor provided by two anti-parallel diodes (5, 6), and with the signal provided in response to a voltage drop across the latter. The diodes (5, 6) are connected in parallel with the control path of a control transistor (6) in the current path of a signal indicator (7). The transistor (6) may provide one of the diodes, with a second diode (5) connected across the base and emitter, each of the door push-buttons (3) connected to the transistor base. The transistor may be replaced by a thyristor and one of the two anti-parallel diodes may be replaced by two like diodes in series.
Patent DE-2436799-A1 (DE)
Title: Synchronising speed of material band and storage roller - separately determined speeds are compared and roller revolutions adjusted
Inventor: SCHRECKENBERGER KLAUS DIPL ING
IPC: H02P5/50
Filed: 1974-07-31
Abstract: Procedure for synchronising the speed of band of material and the circumferential speed of the band roller in a paper and plastic working machine has the band speed and the circumferential speed of the roller ascertained separately and the obtained values compared to determine the roller revolutions. The circumferential speed of the rollers circumference is measured at a small speed of the roller and the resulting value is stored. The stored speed value is subsequently multiplied by the roller revolutions. The speed value of the roller circumference is converted in digital impulses and the corresponding number of impulses are stored. The stored number of impulses, when adjusted to the roller revolutions is then compared with number of impulses representing the speed of the band.
Patent DE-2437784-A1 (DE)
Title: Continuous production of mixts. - of liqs. contg. up to 20 per cent solids, dissolved and/or undissolved
Inventor: HOFFMANN HELMUT
IPC: B29B7/44
Filed: 1974-08-06
Abstract: In a process for continuously producing mixts. or solns. of liqs. contg. up to 20% wt. of solid component and fillers, in which the components are mixed in a housing by a rotary mixing device, the heating and conveying through the housing of the solid materials are effected using the liq. The mixing or dissolving process is carried out at pressures of 2-60 atmos. and at temps. in excess of the m.pts. of the solid components. The components have a short residence time in the mixer, which therefore has a high throughput capacity in relation to its size. Good product homogeneity achieved. The mixed is insensitive to adhesive materials or materials which tend to form deposits.
Patent DE-2441629-A1 (DE)
Title: Drum brake shoe thrust assembly - input and output elements sliding in same direction at different rates
Inventor: NEWSTEAD CHARLES
IPC: F16D65/09
Filed: 1974-08-30
Abstract: A drum brake arrangement to prevent the larger of the pistons from jamming in the cylinder, has a thrust input part (22) which can slide inside the thrust output part (12) both moving by means of the device in the same direction at an increased rate. The thrust output part (12) is designed as a cylinder (13) and the thrust input part (22) is a piston (16) fitted inside the cylinder (13). Within the cylinder (13) is another piston (17) with a diameter smaller than than of piston (16). Between both pistons is a layer of pliable thrust transmitting material (18). The piston (17) rests against a fixed stop (20).
Patent DE-2441691-A1 (DE)
Title: Humidifier for warm air used in space heating - air flow passes over perforations through which water vapour is issuing
Inventor: ZABEL HEINZ
IPC: F24F6/04
Filed: 1974-08-30
Abstract: The heated air passes forwards and upwards over a guide plate made of sheet metal or plastic, which forms the upper surface of a water reservoir. Perforations in the guide plate, above the water level, allow water vapour to join the warm air stream; a slide allows the perforations to be closed, when desired. The guide plate is the same length as the heater which supplies the warm air. The filler and filler cap for the water can be put at either side. The device is adaptable to motor car heaters. The water level can be regulated automatically, if necessary.
Patent DE-2449881-A1 (DE)
Title: Measurement of flow velocities in flowing media - using feedback circuit, ultrasonic waves and given measuring stage
Inventor: KROEBEL WERNER PROF DR
IPC: G01P5/24
Filed: 1974-10-21
Abstract: The two transducers are used simultaneously but in two different frequency ranges both as transmitters and receivers of continuous sound waves. Excitation frequencies are obtained for sound waves running in opposite directions in the measuring stage. These sound waves yield, in one direction, the velocity of sound of the medium plus the flow speed component in the same direction and, in the opposite direction, the velocity of sound of the medium minus the flow speed component, so that the velocity of flow to be measured can be determined from formation of the difference.
Patent DE-2461345-A1 (DE)
Title: Claw for press tool attachment - has foot slidable in undercut channel and chamfered to allow swivelling
Inventor: BERGMANN EWALD
IPC: B21D37/04
Filed: 1974-12-24
Abstract: The tensioning claw for attachment of tools to presses gas a head piece which contacts the tool and a T-shaped foot piece which is inserted into A T-shaped groove cut into the press table or press upper die support table. The foot piece can be slid up and down the groove to allow exact tool positioning. The swivel feature is provided by means of an end cut out section of the groove (13) in one of the components (15). The component (15) can be pivoted about an axis running parallel to the tensioning surface (11) and lateral to the longitudinal direction of the groove.
Patent DE-2500777-A1 (DE)
Title: Prestressed-concrete pressure tank manufacture - with concrete body kept at varying temperatures in different areas during stabilisation
Inventor: NESITKA AUGUST DIPL ING DR TEC
IPC: E04H7/20
Filed: 1975-01-10
Abstract: The process is for production of prestressed concrete pressure containers, of rotation-symmetrical outline, as used for reactor core accommodation in nuclear energy plants, loaded by interior pressure and by stresses resulting from different interior and exterior temperatures, and with reinforcement to counteract these stresses. During or after the process of stabilisation, the concrete body, provided in the outer zone with prestressed reinforcement, is kept at different temperatures by varied heat induction in different areas of the cross-section. A temperature higher than that in the inner zone may be maintained in the outer zone of the wall thickness during the whole stabilising period, and afterwards the walling may be subjected to a temperature which rises from outside to inside.
Patent DE-2502699-A1 (DE)
Title: Radiator rib or block nippling machine - comprises location frame table moved by radiator feed unit between two tool holders
Inventor: ROSENKRANZ SIEGFRIED
IPC: B23P19/06
Filed: 1975-01-23
Abstract: The nipple making machine is for the production of nipples on radiator ribs or blocks. A table frame (3) has a plate on which the radiator unit (4, 41) is placed for nipple production. On the rame, is a drive unit (6) comprising the one or two compressed air screw motors. Two nippling toool holders (63) are located at a distance from each other and on a plane parallel to the table plate, and a feed unit (8) is provided for moving the radiator body to and from the work position. The nippling tool holders are height adjustable in relation to the table plate, and the distance between them is likewise variable.
Patent DE-2502998-A1 (DE)
Title: Continuous cleaning of strip towel - by simultaneous washing bleaching and optical brightening
Inventor: GLUCK BRUNO ANTON
IPC: D06L1/12
Filed: 1975-01-15
Abstract: Continuous cleaning of very dirty strip or rolls of hand towelling utilising washing, bleaching and brightening agents by (a) simultaneously and continuously washing bleaching and brightening the towel strip or interconnected rolls in a residence tank using a wash liq. contg. 0.5-6 g. washing agent, 0.5-30 ml. bleaching agent, if desired in the form of H2O2, 0.1-4 g. of an alkali respectively per litre of wash liq., together with a sufficient amt. of an optical brightener and (b) thereafter continuously rinsing the towel strip or interconnected rolls prior to further treatment. The prefd. residence time is 10 mins. with a wash liq. temp. of 75 degrees-95 degrees C. Wash through-put of towel strip or interconnected rolls may be maintained at least as high as in known continuous presure but with a degree of cleaning not achieved in such processes.
Patent DE-2503357-A1 (DE)
Title: Medical tool extracting pins, nails chisels etc. - has sterilizable working parts for working with bones
Inventor: ZEPPELIN DIETER VON DIPL ING
IPC: A61B17/88
Filed: 1975-01-28
Abstract: Supports are formed in the fixed part, i.e. a pin and in the bone so that the part can be withdrawn from the bone by unscrewing or levering out etc. Pref. the fixed part can have an axial thread onto which a nut can be screwed, this in turn presses against a withdrawal sleeve thus drawing the fixed part out. A lever (9) shaped as a tuning fork can be fixed against a pin (8) in the fixed part and the part withdrawn by pressing against a support (10, 12) arranged next to the fixed part. The support which can be adjusted in length, consists of two parallel parts (10, 12) fixed together by pins. Support discs (13) can be provided to prevent stress peaks building up in the bone.
Patent DE-2504017-A1 (DE)
Title: Mechanism for machine printing forms - has bed and platen moved by hand into position for solenoid pulses
Inventor: DEISTING HORST
IPC: B41L47/44
Filed: 1975-01-31
Abstract: The mechanism has a support bed carrying a plastic platen with embossed characters. An electromagnetic pulse generator has solenoids and an armature coupled to the bed. After reducing the clearance between a printing cushion and the bed to the thickness of the platen and of the item to be printed the generator produces a short pressure impulse. The bed and the armature can be moved horizontally by hand to a rear position in which a platen (15) and a set of forms (13) can be inserted vertically. In a front position the bed (5) and the plates, are brought immediately in front of the printing cushion (9) and the item to be printed. This brings the armature (4) immediately in front of the magnets (2) and into their effective zone, and thus into a position predatory to delivering an impulse.
Patent DE-2509426-A1 (DE)
Title: Miniature switching unit for watches, cameras, etc - has circuit board with slide which contacts different contact pairs in turn
Inventor: MESSER EDGAR
IPC: H01H9/04
Filed: 1975-03-05
Abstract: Fixed contacts (15-17) are arranged on a plate (2) in pairs in line next to each other in a stationary frame (1) has a conducting switching element (5) and can move along the contact pairs (15-17), so that the switching element connects in turn contacts in different pairs, thus closing and opening corresponding circuits. The switching element (5) is preferably a spring-loaded sphere which can occupy stable rest positions defined by apertures or recesses (11-13) in the plate (2) and corresponding to the contact pairs. The slide (4) or its operating knob (7) may be attached to a roll foil which moves with the slide and covers the frame (1).
Patent DE-2510129-A1 (DE)
Title: Bar lathe feed jaw - has taper bored sleeve accommodating externally tapered insert to grip work
Inventor: HARDT SIEGFRIED
IPC: B23B13/12
Filed: 1975-03-06
Abstract: The jaw is for lathes machining bar stock, having springs acting radially to grip the bar, being particularly for automatic lathes. The sleeve accommodating the springs (1) has on the inside (2) a slight taper against the direction on which the bar (20) is fed, and at the wider end of the tapered portion (4) a stop (5) is provided for the insert (11). The latter has an outer tapered surface (13), so that when the sleeve is thrust forward it grips the bar firmly. However on the return stroke of the sleeve, pressure is relieved and it slides freely on the bar. The insert can be of hard elastic material, with a number of radial slots (15) extending in the lengthwise direction.
Patent DE-2510261-A1 (DE)
Title: Frequency stabilising circuit for oscillator - has phase locked loop remaining within tolerable swing-out range during interruptions
Inventor: KORN JOEL DR ING
IPC: H03L7/183
Filed: 1975-03-08
Abstract: The frequency stabilising circuit, for an oscillator, has a phase locked loop designed to remain within a tolerable swing-out range during brief interference -- such as interruptions to the supply voltage or control frequency changeover. The outputs of the crystal oscillator (or control frequency) (ST) and the varactor-tuned oscillator (0) are frequency divided and applied to the phase discriminator (PD). The phase discriminator output is LP filtered and compared (VV) with the LP filtered output of a monostable multivibrator (M1) following the output of the tunable oscillator. The comparator output is coupled to a store (SP) together with the delayed output of a voltage discriminator (SD). The store is connected to the multivibrator and its contacts are held during interruptions.
Patent DE-2519498-A1 (DE)
Title: Inductive loop radio receiver system for improved reception - is fitted with inductive and capacitive pick-ups for enhanced signal strength
Inventor: MUEHLBAUER HEINZ
IPC: H04B5/00
Filed: 1975-05-02
Abstract: The inductive loop receiver system overcomes the problems of reduced reception due to the position or orientation of the pick-up apparatus. The inductive loop (1) is a continuous one and is driven by a very low frequency between 16 KHz. The receiver (5) employs a conventional pick-up coil (7) tuned by a capacitor (8). Additionally, the receiver has a metal capacitance plate which with the self-capacitance of the user (10) forms a capacitive coupling with the electric field of the radiating loop. A very small order of capacitance (17) connects the input to an amplifier whose output is connected in parallel with the load of the first tuned circuit (6). The capacitive pick-up circuit can employ a FET connected in source-follower mode.
Patent DE-2520572-A1 (DE)
Title: Flexible heat retaining swimming pool cover - has sheet wound on pool edge spindle at acute angle to water surface
Inventor: HILLENBRAND THILO
IPC: E04H4/10
Filed: 1975-05-09
Abstract: The swimming pool is fitted with a flexible membrane sheet, which can be rolled up on one or more roller spindles, for covering it when not in use, esp. so as to reduce heat loss. The roller spindle (5) is on a stationary mounting at the edge of the pool. The flexible sheet (6) can be set down on the water surface or removed from it, by turning the spindle so that an angle (u) of less than 90 deg. with the water surface is formed. The end edge of the sheet closest to the water may be held on a slope relative to the water surface, by one or more weights in the form of rotatable rollers, mounted on stirrup-shaped lever arms.
Patent DE-2540822-A1 (DE)
Title: Extruding sections with an outer covering - by consolidating inside covering shell and extruding as one mass
Inventor: RUPPIN DIETRICH PROF DR ING
IPC: B29C48/09
Filed: 1975-09-11
Abstract: Externally covered solid or hollow profiles, of any section of powder, fibres, chips or granulate (or combination) of secondary raw materials in various types of particles plus binder, are extruded. Process comprises consolidating material, placing in a closed shell, pref. of thermoplastic, and extruding the hollow together with the filling of secondary raw materials. Extruded sections receive a covering in one operation and the thickness can be adjusted by regulating the initial thickness of the shell. Finished sections can be cooled.
Patent DE-2546521-A1 (DE)
Title: Digital position measuring systems error compensator - may generate large number of pulses using counters and comparator
Inventor: RICHTER HANS
IPC: G01D5/245
Filed: 1975-10-17
Abstract: The device has a pulse store and a stationary scanner allocated to it. The store (2) is a uniformly rotating disc. IT is driven by a motor, and is scanned by a fixed scanner (4) and a movable scanner (1). Scanned pulses are applied to an adder and subtractor (7). The system includes a counter (9) which receives inputs from both of the scanners, and it is connected to a further counter (8) which receives inputs from the adder and subtractor (7).
Patent DE-2547456-A1 (DE)
Title: Oil separator for car wash - has inflatable collector tray under car and gravity separator tank
Inventor: ROTH PAUL
IPC: B60S3/00
Filed: 1975-10-23
Abstract: The car is placed over an inflatable collecting tray (1) whose sides are inflated after the vehicle has been driven on. The raised sides (2) collect the water and oil washed from the car and an electric pump (5) removes the mixture, via a filter, and pumps it into a collecting tank (8). The mixture is introduced below the max. level, so as not to disturb the surface layer. The oil separates and rises to the surface. Excess water is siphoned off by a simple overflow (11) from below the oil level. The oil is removed by skimming etc. The whole system is light and portable and can be set up anywhere.
Patent DE-2551395-A1 (DE)
Title: Aquaplaning reducing device for car - with gutters under body and in mudguards to prevent water falling in front of wheels
Inventor: GROSPITSCH HUBERT ING GRAD
IPC: B62D25/18
Filed: 1975-11-15
Abstract: The anti-aquaplanning has special gutters in the front edges of the wings and under the front edge of the car. these collect the spray thrown up by the wheels, and the water dripping off the front of the bonnet, and divert it away from the wheels. The otherwise dripping water and spray can lead to a build up of water level immediately in front of the wheels, and cause planning. The gutters can be metal or plastic and are retrofitted to any car. They do not increase the cost of the vehicle unduly and greatly improve the safety.
Patent DE-2554867-A1 (DE)
Title: Mfr. of cam with silver contact - fuses silver thread over semifinished product which is them stamped or cut into final cam
Inventor: SIHLER HELMUT
IPC: H01H11/04
Filed: 1975-12-05
Abstract: The contact cam made from thin plate by stamping or cutting and bending sheet-metal strips, for example spring tongues, or brass plate. It is used for toggle or tumbler and similar switches. Silver is fused onto the semi-finished product (1) in the form of a thread (2) before the finished parts are stamped or cut out from the semi-finished product (1). The silver thread is soldered onto the brass plate (1) which is divided into eight spring tongues by stamping or shearing cuts (3). The holes (4) are used as filling points for the spring tongues (5).
Patent DE-2557059-A1 (DE)
Title: Round load handling equipment - has linked components forming pressure member with force exerted between end ones
Inventor: KAUP OTMAR
IPC: B66C1/42
Filed: 1975-12-18
Abstract: The equipment is for handling loads with curved surfaces, particularly cylindrical rolls, having a body equipped with a controllable pressure member. This member comprises a number of components (15, 17) linked together one behind the other. A force can be exerted between the end components (17). Typically this can be by a rope, attached to the outermost component, passing through guides in the intermediate ones to a puller mechanism (20). Some at least of the components can be provided with pads on the side through which the rope is passed.