baber/WOPTO huggingface dataset:
Patent DE-2427388-A1 (DE)
Title: Electric motor controls for toy - transistor forming multivibrator with constant base current and variable pulse-to-interval ratio
Inventor: MOLDASCHL BERT
IPC: H02P7/291
Filed: 1974-06-06
Abstract: Controls for electric motor of a toy comprise a sensor, e.g. a photoresistor (F), and a multivibrator (M) with complementary transistors. Connected to the output of the multivibrator is an output transistor (T3) acting as an reversing switch for the phase relationship of the pulse-to-interval ratio. The output transistor is open during the interval, while current at the output is restricted in case of overload or short circuit by a thermocouple between a PTC resistor (R3) and the output transistor. When the base current of an inversely operating transistor (T1) discontinues, the emitter-collector stage and also a second transistor (T2) are cut off. The second transistor remains cut off until the voltage at a capacitor (C) which is charged via resistors (R2, R4) is restored to the threshold voltage of the first transistor (T1).
Patent DE-2431328-A1 (DE)
Title: Blood sedimentation testing device - has mutually communicating capillary tubes in shell
Inventor: MEHL WALTHER DR MED
IPC: G01N15/05
Filed: 1974-06-29
Abstract: The blood sedimentation testing device has a pair of capillary tubes. One of the capillary tubes has a filling funnel, and a scale is provided at right angles to the capillaries in the form of, e.g. a drilled hole in the bottom plate. The filling funnel is shaped like a syringe holder. Extension of the shell at the capillary top serves as the filling funnel, which tightly holds the syringe placed on the tube.
Patent DE-2431608-A1 (DE)
Title: Height adjustment for tipper axis - with pivot jig mounted between chassis and skip
Inventor: JUENGERINK JOHANN ING GRAD
IPC: B60P1/34
Filed: 1974-07-02
Abstract: The rear of the tipper chassis is fitted with pivot stubs (3) on which the tripper skip is located using forked supports (9). To raise the tipping height a simple frame jig is clipped over the chassis stubs and the frame supports a similar set of stubs (2) above the chassis stubs. The jig is stabilised by a diagonal strut (7) between the top stubs and the chassis. The frame is easily fitted and has no parts which wear out easily. When not in use the strut is released and the jig folded flat on the chassis.
Patent DE-2435655-A1 (DE)
Title: Power supply system for hover railway vehicle - has flexible self centering pick up shoes to contact live rail of high speed unit
Inventor: GROS GERARD
IPC: B60L5/40
Filed: 1974-07-24
Abstract: The current take up from each rail follows by the means of pick-up units in the form of tongs which closely surround the corresponding rail. The rail consists of a six sided prism whose three symmetric side areas form three contact paths. The pick up unit is circular with an opening which partly surrounds the rail as far as the isolating support and carries three slip shoes flexibly mounted central to the rail. The rail and corresponding pick up may take a circular triangular, square or polygon shape.
Patent DE-2440399-A1 (DE)
Title: Four wheeled folding luggage trolley - with two small wheels pivoted on arms on main frame to provide free standing
Inventor: RICHTER ALBERT
IPC: B62B1/00
Filed: 1974-08-23
Abstract: A U-shaped frame (3) has two main support wheels (5) fitted to the lower ends, and has its upper ends joined by a cros bar (7) to form the hand grips. Two support arms (14) are hinged on the sides of the frame with smaller wheels (16) at the free ends. The support arms can be extended into a fixed position at an angle to the main frame to form a four wheeled trolley which is free standing. The hand grips are extended to the required length with telescopic side pieces, and a luggage rack is formed by shaped frame members (20) hinged on the main frame. To fold the trolley for transport when empty, the hand grips are pushed into the telescopic sections and the small wheel support arms folded alongside the main frame.
Patent DE-2440400-A1 (DE)
Title: System for remote cct switching - has automatic or single button operated manual control for switching state reversal
Inventor: HIMMEL MONIKA
IPC: H01H47/00
Filed: 1974-08-23
Abstract: The circuit finds application where manual operation must work together with automatic control, such as from a process control computer. The manual control is by a single or push button switch and each successive operation reverses the function of the previous one. A polarised relay operates the main contacts for the external circuit as well as closing the circuit to auxiliary relays which ensure that the next manual operation effect the reversal. Capacitors ensure that sufficient energy is available to close the relays after the breaking contact opens. Automatic operation is obtained through separate terminals, and successive identical command signals, such as 'close' do not lead to alternate reverse operation. Routing diodes prevent interference between the two controls.
Patent DE-2446726-A1 (DE)
Title: Coloured dustbin insert set as recycling aid - has inserts each occupying one third of bin coloured differently to aid sorting
Inventor: FRIEDRICHS KARL-HERMANN ING GR
IPC: B65F1/00
Filed: 1974-09-30
Abstract: The set comprises three inserts for use in standard 110 and 60-litre capacity dustbins to German Standard DIN6629. Each insert extends for 120 deg inside the bin, being closed except at the top, and each is of a different colour, e.g. green, brown, and uncoloured. Each has three evenly spaced openings in the top part to allow lifting out. The design is particularly to allow householders to sort waste glass into different colours before disposal, thus aiding recycling.
Patent DE-2448818-A1 (DE)
Title: Heat transfer system with compressor - has an after cooler with circuits for heating system and a recirculating system
Inventor: FALCIONI CHRISTIAN J
IPC: F25B39/04
Filed: 1974-10-14
Abstract: The cooling medium of the heat transfer system which emerges from the compressor is condensed in a water cooled condenser and subsequently cooled in an after cooler. The condenser has two separate water circuits, connected to a heating system and the second one to the cooling water system. The after cooler is separated from the condenser and connected to the second circuit pump and to the second circuit. A three way valve is controlled in relation to the pressure of the coolant circuit. The first outlet of this valve is connected with a hypass of the condenser and the second outlet is connected with the inlet of the second circuit condenser. The pump of the second circuit continues to operate also in case of full energy absorption and only the flow rate is reduced in case of low ambient temperature so that the liquid coolant leaving the condenser is after cooled as far as possible.
Patent DE-2449436-A1 (DE)
Title: Safety hinge for car seat back - with locking ratchet after shear pins broken by impact
Inventor: WAGNER FRIEDEMANN
IPC: B60N2/433
Filed: 1974-10-17
Abstract: The car seat hinge is fitted with interacting gearing of fine teeth to allow a fine rake adjustment to be made by the hinge controls. Such hinge components are made from a simple metal stampings for ease of production and economy. They have a limited strength and can lead to the hinge collapsing in a collision, leading to back injury for the seat occupant. The invention provides a second, coarser ratchet (12) spaced from a fixed tooth (11) on the other part of the hinge. The two sections of the safety device are held apart by a shear pin (10) which is broken in a collision impact. This brings the two parts of the safety ratchet together to secure the seat.
Patent DE-2453670-A1 (DE)
Title: Nozzle for injection of gases into liquids - which prevents ingress of liquid when gas press. fails
Inventor: PINZ KURT DR
IPC: B01F3/04
Filed: 1974-11-12
Abstract: A nozzle for injecting gases into liquids contains or is formed as a non-return valve, having plug which is lifted off a seat by the gas press. and which returns to the seat when the gas pressure fails. The plug may be spring-loaded to lift at a preset gas press. The nozzle is used esp. for aeration of waste contaminated water. Ingress of water into the nozzle and gas pipework is prevented, eliminating deposits of sand, mud, etc.
Patent DE-2453806-A1 (DE)
Title: Digital data recording system - has repeated comparison of input values to give stepping motor control signals
Inventor: SCHOTT WERNER
IPC: G01D9/02
Filed: 1974-11-13
Abstract: An analogue or digital coded electrical signal, e.g. a measured value, is processed digitally and a recording unit is driven in digital steps proportional to this signal. The recorder is first set to zero and the first input value is compared with zero, whereby a counting circuit records the difference and operates a stepping motor accordingly which in turn displaces a recording trace. Both the sensitivity and the accuracy of the recorder can be adjusted within the wide limits. If stored, the actual value can be used for comparison with the value scanned by the next pulse. No matter whether the comparison gives a positive, negative or zero result the deflection is charged by the stepping motor.
Patent DE-2455544-A1 (DE)
Title: Electro-erosion spark machine control - by altermate movement of hydraulic feed cylinder and slide and fast return
IPC: B23H7/18
Filed: 1974-11-23
Abstract: Electro-erosion spark machining of workpieces uses an electrode mounted on the rod of a feed cylinder which is carried on a slide driven by a recirculating-ball lead screw. During the erosion operation, the controlled path of the piston in the feed cylinder is shorter than the mix. piston stroke. On reaching the foreward dead centre relative to the workpiece, the slide is automatically moved forward the length of the working stroke while the piston is retracted to maintain the gap between electrode and workpiece constant. This enables the electrode to be moved forward to the full depth without interrupting the operation, even if the depth exceeds the stroke of the feed cylinder. In case of a short-circuit the electrode is automatically retracted until the short-circuit is interrupted.
Patent DE-2459700-A1 (DE)
Title: Non-ferrous metals extracted from pyrite roasting residues - by the fluidized bed method and oxidation
Inventor: VIAN ANGEL DR
IPC: C22B1/06
Filed: 1974-12-17
Abstract: The parent patent discloses treating the roasting residue in a fluidized state with O2, SO2 and water or steam. In order to extract the non-ferrous metals when present in much smaller particle size, the residue is treated in the fluidized state in an atm. contg. SO3, pref. in the first stage. The SO3 atm. is provided by addn. of substances which form SO3 by thermal dissocn. such as sulphuric acid, wash acid of final roasting gases, aryl- or alkyl sulphonic acid, ammonium sulphate, Fe sulphite singly or together.
Patent DE-2459907-A1 (DE)
Title: Locking mechanism for reclining chairs - has either rocking or recline facility using link mechanism
Inventor: JAMES HENRY
IPC: A47C1/034
Filed: 1974-12-18
Abstract: The rocker-recliner chair has a base portion for supporting a chair upon the floor, a rocking portion mounted upon the base portion for rocking movement thereon, and a body-supporting portion movable relative to the rocking portion from a generally upright sitting position to a recline position. The improvement comprises a locking linkage selectively shiftable between alternate positions to lock the chair against reclining while permitting the same to rock, and conversely to lock the chair against rocking while permitting the same to recline, the linkage comprising a first pair of connected links each pivoted respectively to one of the base and the rocking portions on a first axis which is common to both and spaced from the rocking axis when the chais is in neutral balance, and from which the pivots of the first link pair are displaced by the rocking movement, and a second pair of connected links each pivoted respectively to one of the rocking member and the body-supporting portions on a second axis common to both when the chair is in the sitting position and from which the pivots of the second link pair are displaced by the relative movement to the recline position.
Patent DE-2460371-A1 (DE)
Title: Safety points for suspended railway - rail change over effected by lever driven by piston locked in position
Inventor: WEBER FRANZ
IPC: B61L5/04
Filed: 1974-12-20
Abstract: A safe points mechanism for a single rail suspension railway system, used typically in mines, in which a points connection must be made in one direction or the other until a change is demanded, is presented. The overhead rail has an I section and the mechanism in a points box is described in some detail. Basically a short section of rail is switched so that an incoming rail is connected to one of two outgoing rails. The change is effected by means of a lever driven by a single piston, and the mechanism is locked into position at either terminal position by spring catches shaped so that the lever cannot move once it is in the terminal position. The springs are mounted in the points box wall. Various transverse elements are also required to ensure the correct operation of the mechanism.
Patent DE-2460777-A1 (DE)
Title: Twin electric arc simultaneous operation system - has inductive decoupling device in main circuit stabilising main arc striking
Inventor: HEINZE BERTHOLD DIPL ING
IPC: B23K9/10
Filed: 1974-12-21
Abstract: The welding or cutting burners are connected to a common source with a falling voltage characteristic and limiting resistances increase the voltage for striking the arc. To stabilise the striking of the main arc a decoupling device is provided in at least one main circuit, in the form of an inductance matched to the striking operation. This can be achieved by a short-circuit-proof small current source in the welding current circuit, whose voltage is added to the burning voltage of the plasma burner and to the limiting voltage at the resistance. This gives sufficient voltage for striking the pilot and main arcs at the burner.
Patent DE-2462400-A1 (DE)
Title: Composite yarn comprises core of untwisted fibre roving - around which is twisted at filamentary yarn of defined characteristics
Inventor: MAAG FRITJOF DIPL ING DR ING
IPC: D02G3/38
Filed: 1974-06-12
Abstract: A composite yarn is formed by forming a filamentary yarn into e.g. a balloon as it passes from a supply package in a spindle and advancing a fibrous untwisted roving through the spindle so that the filamentary yarn is wrapped around the roving (1). The filamentary yarn is less than 50 dtex (pref. less than 15 dtex) and the force required to produce an increase in length of 4% is 10 gm. The shrink capacity of the filamentary yarn is the same as that of the fibres forming the roving and 85% of the fibres of the roving are orientated in a longitudinal direction of the composite yarn. The method is cheap and produces a yarn of good quality and appearance which does not loose its twist or firmness when e.g. knitted.
Patent DE-2504155-A1 (DE)
Title: Suction endless conveyor chain - has lugs on links extending past vacuum pipe to hold items clear of it
IPC: B65G21/20
Filed: 1975-02-01
Abstract: The conveyor comprises an endless link belt running over rollers, and hose bottom run is subjected to a vacuum causing the items handled to adhere to it. The belt consists of a steel link chain (3) with protruding lugs (5), and whose sleeves (4) bear against a beam (6) on one side and a pipe (7) on the other, the latter supplied from the vacuum source. There is an opening (9) inthe underside of the pipe, extending for a distance equal to the chain pitch, and the lugs extend past the pipe sides for a minimum distance, sufficient to prevent the items handled from rubbing against the pipe.
Patent DE-2513085-A1 (DE)
Title: Elongation measuring machine for irradiated specimens - with high resolution results using only one transducer has ferrite core support passing through guide
Inventor: WASSILEW CHRISTO DIPL ING
IPC: G01B7/24
Filed: 1975-03-25
Abstract: The machine has an inductive displacement transducer with a ferrite core support and an at least partially non-linear characteristic which is fixed to one of the loading members in the machine. The ferrite core support is provided with a securing pin and a release mechanism fixed to a coupling plate which is connected mechanically to the adjacent loading member, and the core support also has a mechanical zero adjusting mechanism. Pref. the core support passes through a guide member fixed to the coupling plate, and the securing pin is pressed against the core support through the side of the guide member.
Patent DE-2513959-A1 (DE)
Title: Two-part aspherical condensing lens system - for illumination purposes in projectors has Fresnel lens and Meniscus lens
Inventor: JURENZ ROLF
IPC: G02B27/18
Filed: 1975-03-29
Abstract: The aspherical condenser lens (4), which is in close proximity to the slide, is a Fresnel lens. The Fresnel's rings (7) have been adapted to the pupil positions of the projection objective used and feature an alternately different gradation of refraction. The different gradations of refraction is mounted on one or both surfaces of the Fresnel lens (4). The condenser lens (3), which is in close proximity to the lamp, is designed as an aplanatic meniscus lens consisting of heat absorbing glass and has a thickness roation of centre to edge thickness of less than 5. The condenser lenses (3, 4) are arranged at a fixed distance.
Patent DE-2519687-A1 (DE)
Title: Stranded electrical cable central glass yarn - latter acting as tensile stress accepting core in high speed cable stranding
Inventor: VOLK ALBERT
IPC: H01B7/18
Filed: 1975-04-30
Abstract: The multifil glass yarn which may have a diameter of ca. 7 mu m is used as a core round which the individual wires are twisted in the cable making machine to give a conductor, the diameter of which is no greater than if the glass yarn had been omitted since the diameter of each conductor is 150-250 mu m. As a result of the high strength, low extension at break (compared to e.g. copper wire) and the retention of full elasticity up to 80% breaking load, the central glass yarn accepts all the tensile stresses arising during high speed stranding.
Patent DE-2524141-A1 (DE)
Title: Ducting for ventilation during mining and tunnelling - distributing air uniformly without turbulence or inconvenience to working personnel
Inventor: HOFFMANN DIETER
IPC: E21F1/04
Filed: 1975-05-30
Abstract: Ventilation system comprising a ducting system into which duct sections are assembled, each having openings in the duct mantle for setting up jets of air, has flexible ducts. The openings in the duct mantles are covered by a net woven from 4, 5 warp and 4, 5 weft threads of 1500-1600 den/cm2; the threads being of polyester coated with a thermoplast. Gives a much better distribution of the ventilating air and thus improves the working conditions, esp. in the forward drifts. The arrangement is partic. applicable to flexible ducts which are used to large extent, and are proof against the corrosive action of the ventilating air, the net does not weaken the duct mantle.
Patent DE-2524459-A1 (DE)
Title: Double sleeved expanding rivet - has rivet sleeve with conical head driven into slotted sleeve with curved walls and punched to expand
Inventor: HOFFKNECHT MANFRED
IPC: F16B13/06
Filed: 1975-06-03
Abstract: The expanding plug rivet fits in a bore and has an expanding sleeve comprising two slotted blades joined together. There is a rivet sleeve (5) inside the expanding sleeve (1) to accommodate a riveting punch (6) with head (6a). When subjected to a tension load, this expands the rivet sleeve and also the expansion sleeve (1). The rivet (5) has a conical head (7) used to drive the rivet sleeve into the conical bore in the first place, where it fits inside the bore mouth.
Patent DE-2526072-A1 (DE)
Title: Crucible for single crystal growing - having inner wall with annular space filled with fusible material
Inventor: SCHMIDT WALTER DR
IPC: C30B35/00
Filed: 1975-06-11
Abstract: Crucible for holding the melt from which single crystals are drawn has an insert within it. This divides the crucible into two spaces. The first or inner contains the melt. The second is an outer annular space containing a fusible substance whose m.pt. is below that of the melt. Pref. this is a silicate or a mixt. of silicates with m.pts. 1500-1600 degrees C Wollastonite, feldspar or anorthite can all be used. The melt can be partially covered by the insert with openings for charging and removing product crystal. The unit can be formed from concentric tubular sections welded to a base plate. Useful for single crystal growth by the Czochralski process. The main problems with Pt-Ir crucibles for this process are (a) that non-uniform heating causes excessive localised corrosion, (b) that inert gas above the crucible cools the melt surface and means that additional heat must be applied at the base, aggravating the problem (a). The crucible described alleviates these problems.
Patent DE-2528034-A1 (DE)
Title: Straw feed to balers - has collector space coupled to blower suction, air feed and off take lines coupled at 180 degrees
Inventor: ROESS HANS
IPC: A01F15/10
Filed: 1975-06-24
Abstract: The straw feed for balers involves a blower, most of the compressed air being bled off through a right angle offtake pipe into a collector space. The collector space (15) is connected to the suction or intake side of the blower (14). The air feed line (1) and offtake line (6) should be connected to the top end of the compression shaft so that their directions of flow are offset by 180 deg. The offtake line (6) should be connected to the portioning chamber (15) which thus combines as collector for the waste air from the pressure line (1) or the top end of the shaft (2). Preferably the offtake (6) and intake aperture (20) of the blower should be at remote points of the collector space (15) with the result that the steadily renewed straw forms a flow barrier between intake and offtake.
Patent DE-2535807-A1 (DE)
Title: Ultrasonic oscillator circuit for liquid spray - has coupling transformer between pulse circuit and piezoelectric oscillator
Inventor: DREWS WOLF-DIETRICH DIPL PHYS
IPC: B06B1/02
Filed: 1975-08-11
Abstract: A liquid spray device has a piezoelectric spray unit inductively coupled to the sociallator portion of the circuit by a transformer (2). The oscillator has a transistor (5) which has the primary (21) of th transformer between its collector and base. A resistor (6) in series with the primary has the supply connection (100) at their junction. A return coupling transformer (3) is positioned in the base emitter circuit with a capacitor (4) between the secondary (31) and the primary (32) of this transformer at a further contact (101) is located at the junction between this capacitor (4) and the secondary.
Patent DE-2539308-A1 (DE)
Title: Softening agent for textiles, esp. in washing machines - comprising imidazoline derivs. compatible with anionic detergents
Inventor: WALLHAEUSSER KARL-HEINZ DR
IPC: D06M13/463
Filed: 1975-09-04
Abstract: A softening compsn. for textile materials contains 1-35% of a softening agent which comprises >=1 imidazoline deriv. of formula (I): (where R is a 13-21C aliphatic radical; n = 2 or 3; and X is H or an acyl gp. of formula RCO-. The acpds. are prepd. by reacting a fatty acid or ester (1 or 2 mols.) with 1 mol. of beta-hydroxyethyl ethylene diamine or beta-hydroxypropyl ethylenediamine. Compsns. are storage stable and are compatible with anionic detergents. A pref. compsn. contains 3-20% esp. 5-15% of the imidazolines and 4-70%, esp. 6-60% of an anionic, ionic hybrid and/or nonionic detergent, partic. 10% nonionic.