baber/WOPTO huggingface dataset:
Patent DE-2438149-A1 (DE)
Title: Protection against complete discharge of accumulators - automatic charging facilities for stand-by-emergency supplies
Inventor: ROHRBECK HORST
IPC: H02J7/00
Filed: 1974-08-08
Abstract: Switching arrangement for protection against discharge of electrical accumulators in main/standby supply systems has charging arrangement and change over switches dependent on the state of the mains to control the change over switches between the accumulator and the user. The change over switch arrangement comprises a threshold switch having a lower threshold and adjustable upper threshold value which at mains failure can be raised and after restoration of the mains can be again lowered to its original value, the adjustment is made by means of a reactance branch which has a diode a resistance and switch in its circuit.
Patent DE-2444886-A1 (DE)
Title: TV and radio antennae installation for large community - has single, separate lead for long, medium, and short bands
Inventor: DIETRICH JOHANNES DIPL ING
IPC: H04H20/80
Filed: 1974-09-19
Abstract: The antennae installation for a large community receives television and radio signals in long, medium, short and ultra-short wave bands. It has a receiving position with several single antennae, a central main station with apparatus for signal amplifying, frequency changing, level regulation and similar functions, and a cable, especially co-axial cable, network. The network comprises cables leading to the individual users' connections with preferably remotely energized intermediate amplifiers and/or resetting appliances. A single, additional lead serves for the signals on the long, medium, and short wave bands and runs in parallel to the main cable used for all other signals received.
Patent DE-2448537-A1 (DE)
Title: Vehicle DC electric motor traction control - with hydraulic transmission for slow speeds and high torques
Inventor: HAGEN HANS DR ING
IPC: B60L11/18
Filed: 1974-10-11
Abstract: The DC traction has an extended range by controlling the motor at the lower speeds through altering the armature current, while at the higher speeds the field current is controlled. In order to extend the range downwards for starting torques, a hydraulic transmission is fitted. This enables the motor to run at its most optimum, steady speed while the hydraulic pump output is controlled. The torque control is thus infinite, at low speeds.
Patent DE-2455199-A1 (DE)
Title: Road sweeping machine with collector and blower - has integral compact sealed collector and blower unit with low noise level
Inventor: HETTICH ROBERT DIPL ING
IPC: E01H1/08
Filed: 1974-11-21
Abstract: The road sweeping machine has tilting dirt collector mounted on the vehicle frame. The hermetically sealed collector is connected to a power driven blower whose outlet is connected to atmosphere. The blower and collector from an integral sealed unit so that the blower noise is considerably reduced and the blower requires very little space. The blower (16) central inlet (15) is connected to the front end of the inlet channel (20) of the collector (13). The inlet (15) end of the inlet channel is cut at an angle so that the inlet is fully open only on its lower side.
Patent DE-2457535-A1 (DE)
Title: Sewing machine fabric feed - has vertical plate between fabric layers with controlled fabric clips
Inventor: BECKER DIETMAR ING GRAD
IPC: D05B35/00
Filed: 1974-12-05
Abstract: Industrial sewing machine, to sew together layers of fabric such as in trousers manufacturing in which movable clips are located on either side of the plate separating the two fabric layers which are activated by controlled operating units. A common carrier is provided to move the clips against the direction of travel of the two fabric layers. The system provides an automatic control over the movement and feed of two layers of fabric to the sewing machine, where the fabric layers can be of different lengths.
Patent DE-2457929-A1 (DE)
Title: Layered avalanche photodiode prodn - has part of semiconductor body removed ultrasonically or by etching perpendicular to layers
Inventor: MASLOWSKI STEFAN DR ING
IPC: H01L31/0352
Filed: 1974-12-07
Abstract: The avalanche photodiode with a semiconductor body with differentially doped layers, enclosing at least one depletion layer, is formed by radiation into the depletion layer, parallel to the layers, with a low penetrating voltage and charge carrier duration and with a relatively high limiting frequency and without danger of leakage current and breaking through the surface. The device is made by planar technique with penetration directed at right angles to the layers, a part of the semiconductor body being removed so that the light sensitive depletion layer permits radiation to pass through. A portion is separated at right angles to the layers by etching or ultrasonic machining.
Patent DE-2458283-A1 (DE)
Title: Flameless measurement of atomic absorption - for analysis using permanent or semi permanent light source esp. permanent beam laser
Inventor: KOENIG KARL-HEINZ PROF DR
IPC: G01N21/31
Filed: 1974-12-10
Abstract: Process for flameless atom absorption spectroscopy using two light beams, one being an element specific light source and the other a high intensity beam which vapourises and atomises the sample, the first being detected by a detection device. The vaporisation and atomisation of the sample are carried out by a permanent or quasi-permanent light source which irradiates the sample for a prescribed time. This should be a permanent beam or quasi permanent beam laser, the beam from which is focussed. The sample under test is mounted on a transverse table and the radiation from the permanent beam laser is focussed onto a narrow area of it, using a microscope system, having a dia. of 10 to 100 mum. The sample is mounted in a test vessel under a protective gas. Non-element specific radiation is compensated for. Used for spectroscopic analysis. The use of lasers for flameless ionic spectroscopy is known but the duration of a light pulse is measured in multisecs. and this gives considerable problems in the accurate measurement and detection of the test beam, certainly conventional spectrometers not being suitable. The system claimed combines the advantages of laser beams with the use of normal spectrometers having compensators for background absorption.
Patent DE-2460489-A1 (DE)
Title: Brake unit for type carrier adjuster on typewriter - acts directly on the adjuster drive if the carrier has to perform large adjustment movements
Inventor: WOLKEN-MOEHLMANN HELMUT ING GR
IPC: B41J7/32
Filed: 1974-12-20
Abstract: The braking system (13) comprises a friction slit (12) formed in a plate which is fixed relative to the adjusting movements of the type carrier. A friction peg (10) with a cylindrical cross-section is constantly engaged in the slit and is positioned on an arm (5) which participates in the adjusting movement of the carrier. The friction slit is formed from flexible webs which are so constructed that when the carrier and is drive (2) are at the extreme limits of their movement i.e. away from the central position, an increased braking force is exerted on the friction peg (10) by the webs. This is achieved by the slit having a narrower width near its ends.
Patent DE-2503528-A1 (DE)
Title: Air vents for moulds used for metals or plastics - where base contains stiffening ribs between vent holes or slots
Inventor: ZIMMERMANN GOTTFRIED
IPC: B29C33/10
Filed: 1975-01-29
Abstract: Nozzles or vents for moulds employed in metal foundries or in the processing of plastics, are pot-shaped and each have a base-plate contg. the holes or slots, and reinforcing ribs rare provided on the inside surface of the base-plate the holes or slots being located in the depressions between the reinforcing ribs. The ribs may form a grid, the holes being located in the depressions in the grid, or alternatively, parallel rows of stiffening ribs may be used, the slots being situated between the parallel ribs. The thickness of the regions of the base-plate contg. the holes or slots pref. matches the dia. of the hole or the width of the slot. The holes or slots can be made in a single pressing operation, thereby reducing mfg. costs.
Patent DE-2506351-A1 (DE)
Inventor: BANFI ANTONIO
IPC: H03K3/013
Filed: 1975-02-14
Abstract: A bistable logic circuit generating a stable, preferred output logic state for activating a circuit load having a known response time and capable of being tested while installed and in service without activating the output load includes preferential output state logic memory means, asymmetric delay means and first logic means to generate an output which is the logic product of the memory output and the negation of the circuit Reset input. Second logic means generates the memory means control signal as the logic sum of the circuit Set input and the circuit output asymmetrically delayed by a time period less than the load response time. A test pulse output having a time duration less than the load response time is generated for a set input having a time duration less than one internally determined time period whereby the circuit load is not activated. A load activating output is generated at any time, including the test time period, for a Set input having a time duration greater then another internally determined time period and maintained until a Reset input is solely present.
Patent DE-2515362-A1 (DE)
Title: Reinforced concrete prefabricated component for embankments - has trough shaped base reinforcement and draining layer under front face
Inventor: KURTZ ALEXANDER DIPL ING
IPC: E02D17/20
Filed: 1975-04-09
Abstract: The reinforced concrete building component is a prefabricated element filled with soil, gravel, ballast or stones and used for reinforcing embankments. This combines the advantages of a prefabricated and site placed concrete support wall and it is able to follow ground displacement. The front plate (1) slopes, and side walls have trapezoidal shape whose upper part is broken and forms a vertical edge (5) which forms a continuation of the base trough whose assembly, together with horizontal baseplates (2, 3), accommodates tilting forces. The base trough has a longitudinal slot (13) for overcoming sliding by static loading.
Patent DE-2518774-A1 (DE)
Title: Hub for connection to shaft - has uninterrupted central bore with recess and clamping screw
Inventor: KIRSCHEY G DIPL ING
IPC: F16D1/08
Filed: 1975-04-28
Abstract: The hub has a central bore to accommodate a shaft, with a clamping element, acting with a recess in the hub, to apply a clamping force. The recess (15) passes axis-parallel through the radially unslotted hub body (11). A web is positioned between the inner wall of the recess, which is parallel to the central bore axis and the bore (12) itself, and is elastically deformed under the radial clamping force of the clamping element (19). The recess is formed at right angles to a plane, which in turn is radial relative to the hub, and symmetrical with the plane. There is a central pressure surface (16) acting directly with the clamping element. This consists of a screw, in a radial threaded bore (18) in the hub. The screw shank (20) presses against the outward facing pressure surface of the recess.
Patent DE-2522170-A1 (DE)
Title: Ignition advance angle testing arrangement - has delay line which delivers reference pulses for upper dead centre position of piston
Inventor: BLUM RUDOLF DIPL ING
IPC: F02P17/06
Filed: 1975-05-17
Abstract: An arrangement for finding or testing the ignition advance angle of the ignition system of an internal combustion engine. The arrangement has a delay line which is tripped by an ignition pulse generator and delivers a reference pulse for the upper dead centre position of a piston. The delay is adjustable, the set value can be read, and a signal depending on the engine speed continuously varies the delay line delay time. The delay line comprises an integrator, the output of which provides a d.c. pulse, so that the time constant of the integrator is variable in dependence on the delay time and the speed of the internal combustion engine.
Patent DE-2522570-A1 (DE)
Title: Laser tripping signal generating device - is component of equipment for holographic examination of state of object
Inventor: FELSKE ARMIN DIPL PHYS DR
IPC: G01B9/021
Filed: 1975-05-22
Abstract: The signal is derived from a recurring process which has a given relation in time with the state of the object. It has a pickup for derivation of an electric signal from the process. A gate circuit is inserted between the pick- up and the laser triggering input. There is an aplitude range discriminator with an adjustable phase range setter. This is provided before the gate first input for the gate opening signal generation only when the electric signal phase and amplitude lie in specified ranges, and when a tripping signal is applied to the gate second input.
Patent DE-2522856-A1 (DE)
Title: Bus seat with demountable padding - having reversible clip on squab and height adjusting back frame
Inventor: VOGEL IGNAZ
IPC: A47C7/42
Filed: 1975-05-23
Abstract: The bus seat is mounted on a tubular metal frame and the seat squab is reversible with a soft padding (13) on one side and a hard wearing surface (13b) on the other side. It is fitted to the seat frame by two sets of tags (7, 8) with slotted ends to engage spring loaded tabs (9, 10) in the sides of the squab. The rear tag (8) has a horizontal slot and the front tag (7) has a vertical slot to allow easy fitting of the squab. The seat back has an internal frame (3) which can be extended to alter its height and the seat back padding is slotted over the frame.
Patent DE-2523449-A1 (DE)
Title: Gas turbine combustion chamber - has expansion dependent air bypass slots to admit air to mixing chamber
Inventor: MAGHON HELMUT
IPC: F23R3/26
Filed: 1975-05-27
Abstract: The upper mixing chamber housing (7) overlaps the lower end of the flame tube (3) and is provided with combustion air openings in the form of axial slots (12) which extend over the lower end (13) of the flame tube under cold conditions to permit air flow via the annular gap (9) between combustion chamber and combustion casing (1). The mixing chamber (7) is suspended by bolts (8) at the vertical and horizontal centreline to permit it to expand towards the combustion chamber and progressively cover up the slots as working temperature is reached. The combustion chamber casing has preferably an expansion coefficient of 1.2 and the mixing chamber 1.8, at working temperatures between 350 deg. and 780 deg.C, so that the combustion chamber expands 7.15mm downwards and the mixing chamber 23.9mm upwards.
Patent DE-2524348-A1 (DE)
Title: Tractor towed mowing machine - consists of transverse beam supporting two contra-rotating pairs of mower implements
Inventor: UNGRUB JOSEF
IPC: A01D34/66
Filed: 1975-06-02
Abstract: The cutter-blades (16) protrude beyond the circumference of the mower-implements on the same plane and their cutting orbits (16) overlap. The direction (29, 30) in which the mown crop is ejected from the two pairs of mower-implements (2, 3, 4, 5) converge in a direction opposite that of travel (7), and is symmetrical to a vertical centre plane (31) parallel to the direction of travel and between the two inside mower-implements (3, 4). The outside mower-implements have more cutter-baldes (16) than the inside ones. The mower implements are disc-shaped or plate-shaped pieces (2, 526, 27, 28) the outer ones of which (25, 26) are triangular in shape, with the inner ones (27, 28) in the shape of the double arms.
Patent DE-2530192-A1 (DE)
Title: Medical machinery movement surveillance electronic control - involves two series mono-stable tip switches to probe condition and impulse time
Inventor: ROSENFELDT WOLFGANG
IPC: A61C1/00
Filed: 1975-07-05
Abstract: Electronic control for movement surveillance of one or more pieces of apparatus of their components, particularly dental or medical units. Two series connected, monostable tip switches are used, the first of which determines the probe condition and the second the impulse time. A first mono-stable multi-vibrator is so connected that it is self-triggering, and thus by impulse sequence activates a second multi-vibrator. The impulse sequence frequency is a function of a resistance and a capacitor. The second multi-vibrator determines then the width of the impulse, which is further dependent upon the resistance-capacitor combination.
Patent DE-2534902-A1 (DE)
Title: Recovering sweet water from salt water - in small installations combining air conditioning facility with drinking water supply
IPC: C02F1/10
Filed: 1975-08-05
Abstract: Sweet water is obtd. by raising the relative humidity of the surrounding air by means of salt water, the salt being then precipitated from the humidified air. The air, poor in or free from salt is then cooled and the sweet water is thus sepd. out and recovered. The refrigerated air can be used for the air conditioning of rooms, and before it is applied for this purpose, ambient air may be added. The installation can be used economically in hotels, large family houses and small enterprises. An air conditioning facility is included without any increase in the basic cost.
Patent DE-2537762-A1 (DE)
Title: Long life pastry prepn. - from honey and syrup doughs, sugar, wheat and rye wholemeal, citrus peel and spices
Inventor: LINDNER HUBERTUS
IPC: A21D13/08
Filed: 1975-08-25
Abstract: It consists, by wt., of 25% honey dough; 16.8% syrup dough; 16.8% sugar having av. grain-size; 8.4% sugar having coarse grain-size; 16.8% wheat wholemeal type 1600; 12% rye wholemeal type 1740; 3% orange snippers, 0.2% grated lemon peel; 0.665% light, ground Java cinnamon; 0.17% ground Madagascar or Ceylon cloves and 0.165% ground cardamons. Pastry keeps and tastes good.
Patent DE-2543505-A1 (DE)
Title: Valve member in non-return valve - is guided by parallel motion linkage to move vertically
Inventor: FRANCIONI WILLI
IPC: F16K17/04
Filed: 1975-09-30
Abstract: A spring-loaded non-return valve of relatively large diameter (>80mm), has a plate-shaped valve member (8) supported by a parallel -motion linkage (32, 33) to avoid tilting of the valve member in operation. Pref. two such linkages disposed at right-angles, are provided. The example shows each linkage as comprising two parallel links spaced apart in a plane perpendicular to the plane of the valve member and pivoted at their one end to a member (25) upstanding from the medial area of the valve member and pivoted at their outer ends to a member upstanding from the valve housing.
Patent DE-2545648-A1 (DE)
Title: Piperidinyl guanidine derivs. as stabilisers - for polymers, esp. fibres, films and varnishes, esp. polyurethanes
Inventor: UHRHAN PAUL DR
IPC: C08K5/00
Filed: 1975-10-11
Abstract: Piperidinyl guanidines are of formula X-C(=Y)-Z (I) and the tautomeric forms, where X is: in which A is H, 1-20C (un)branched alkyl, 3-12C alkenyl or alkinyl, 7-12C aralkyl or -CH2-CHR4-OH, in which R4 is H, CH3 or C6H5; R1 and R2 are 1-12C (un)branched alkyl or together form, with the C atom, 5-12C cycloalkyl; R3 is H, 1-20C (un)branched alkyl, 5-12C cycloalkyl ethyl where the aralkyl, beta-cyanoethyl, beta-alkoxy-carbonyl ethyl where the alkoxy gp. is 1-3C, 6-14C aryl, -CH2-CHR4-OH, or Z is as X or is -NUV, in which U and V are H, 1-20C (un)branched alkyl, 5-12C cycloalkyl, 7-12C aralkyl or 6-14C aryl opt. substd. by 1-8C alkyl, 1-4C alkoxy, OH, NO2, Cl or Br; also, U may be R5-W in which R5 is 6-10C aryl opt. substd. by Cl, Br, CH3 or CH3O, or a 1-8C (un)branched alkyl or a 7-12C aralkyl, and W is CO- or SO2-; Y is N-R6 in which R6 is H, a 1-20C (un)branched alkyl, a 5-7C cycloalkyl, a 7-12C aralkyl or a 6-14C aryl, all opt. substd. by 1-8C alkyl, 1-4C alkoxy, OH, NO2, Cl or Br; R3, R6, U and v are not simultaneously H. (I) are stabilisers for polymers in the form of fibres, films of varnishes. The polymers are stabilised against colour change and degradation due to light, ultraviolet light, heat, O2, oxides of N, Cl2 and flue gases. When X = Z and R6 is not H, I are prepd. by reacting an isocyanuric dichloride of formula r6-N=CCl2 with a 4-aminopiperidine. I are used in a wide range of polymers, more esp. in polyurethanes.
Patent DE-2546066-A1 (DE)
Title: Counting and display unit for coin operated machines - has timing circuit including Schmitt trigger to regulate electromagnets and motorised pawl wheels
Inventor: BERGMANN ERNST
IPC: G06M1/10
Filed: 1975-10-15
Abstract: The automatic coin operated machine includes a timing circuit (100) and a counter unit (110). The timer incorporates a pair of changeover contacts (101) in circuit with RC members (102, 103) diodes (104) and a Schmitt-Trigger (106). The latter has parallel-connected capacitors (105). The trigger circuit is electrically connected with a pair of electro-magnetic coils (9, 10) which operate pawl-type levers for step-wise moving ratchet wheels (8, 11) by means of the restraint offered by the tips of the levers (12) in the depression in the wheels. The toothed wheels are driven by a motorised device.
Patent DE-2556011-A1 (DE)
Title: Antifungal and antibacterial thiadiazolyl disulphide derivs. - prepd. e.g. by reacting thiols with thidiazole-sulphenyl halides
Inventor: JURASZYK HORST DR
IPC: C07D285/08
Filed: 1975-12-12
Abstract: Novel 1,2,4-thiadiazole-5-yl disulphide derivs. of formula (I). In formula (I), X is Cl of Br; R' is is not >12C alkyl, is not >12C alkyl which is mono-unsatd. or substd. by COOH and NH2, is not >6C cycloalkyl, phenyl, phenyl mono- or polysubstd. by F, Cl, Br, NO2, is not >4C alkyl, NR2R3, CN, OH, OR4, SR4 and/or SO2R4, benzyl, benzyl mono-or polysubstd. by CH3, F, Cl, NO2, CF3 or CN, or CCl3; R2 and R3 are H, is not >4C alkyl, formyl or acetyl; and R4 is is not >4C alkyl, phenyl, or phenyl substd. by NO2, NH2 or Cl. (I) and their acceptable salts have bacteriostatic and fungistatic activity. For example, 3-chloro-5-(4-nitrophenyldithio)-1,2,4-thiadiazole has outstanding inhibitory activity against filamentous fungi Candida strains and gram-positive and -negative bacteria (including Staphylococcus aureus, Streptococcus pyogenes, Escherichia coli and Proteus vulgaris). They can also be used as medicaments, esp. for combatting microbial infections. They may also be used as intermediates for further pharmaceuticals. Specific cpds. (I) include 3-chloro-5-(4-nitrophenyldithio)-1,2,4-thiadiazole. In an example, this cpd. is prepd. by dropwise treatment of a solution of sodium 4-nitrothiophenolate in CHCl3 with 3-chloro-1,2,4-thiadiazole-5-sulphenyl chloride, the resulting mixt. being stirred overnight at room temp.
Patent DE-2603207-A1 (DE)
Title: One piece moulded plastic lever system - has hinged and stops as integral parts of system to prevent overloads
Inventor: KONRAD RUDI
IPC: F16H51/00
Filed: 1976-01-29
Abstract: The lever system consists e.g. of two levers (1, 3) and a linkage bar (2). The hinges (4, 5) between levers and linkage are moulded integrally with the levers and linkage. The hinges consist of long narrow strips which connect the two parts either side of it. The width of the narrow strip is equal to the thickness of lever and linkage. Also integral with the system are stops (17 to 19a) which are formed either side of the narrow strip and which limit the angular deflection of the strips. Sideways stops can also be formed-on, which would prevent excessive side loads being placed on the hinges.
Patent DE-2603587-A1 (DE)
Title: Pitch variation for Voight:Schneider propellers - has pantograph linkage between steering boxes and pitch change lever
Inventor: VOLKOV EVGENIJ S
IPC: B63H1/10
Filed: 1976-01-30
Abstract: The mechanism for varying the pitch of a Voight-Schneider propeller is for a unit with 2 steering boxes (1) connected by a common linkage to one end of a lever whose other end engages with the mechanism inside the propeller body which takes the drive to the blades. This linkage takes the form of a pantograph with a pivot (A) parallel to the propeller blade axis, fixed to the body (3) of the unit. Its input arm (11) is connected to the steering boxes and its output arm (12) embodies a ball and socket bearing (17) for the end of the pitch changing lever. The linkage is so dimensioned that input movement is greater than output movement.