baber/WOPTO huggingface dataset:
Patent DE-2752152-A1 (DE)
Title: Heat pump with solar heating system - has heat exchanger in air duct, with vertical pipes receiving coolant medium overflow
Inventor: GELESIC ANTUN DIPL ING
IPC: F25B39/02
Filed: 1977-11-19
Abstract: The heat exchanger for a heat pump connected to a solar heating system has an evaporator (1) in a circular housing (2) at the end of a return duct with air blown down one side (27) by a fan (31). Inside the circular housing are vertical tubes (11) around which pass the coils (21) of the heat exchange liquid from the solar heat collectors. These tubes (11) through which the cooling medium flows, have fins (9) around them, and their tops (15) project above the duct so that the colling medium can overflow into them. The region below (16) forms a bath, which is fed by a line (17) with an expansion valve (18). The coils (21) are immersed in this bath.
Patent DE-2753732-A1 (DE)
Title: Rotor control circuit for small stepping motor - has control stage with triangular wave generator of given pulse duration
Inventor: STECHMANN HELMUT ING GRAD
IPC: H02P8/32
Filed: 1977-12-02
Abstract: A rotor control circuit is for a small stepping motor, used as a switch. The stator coil is fed with a series of pulses of alternating polarity from a control stage. The control stage is fed with rectangular pulses. The control stage has a triangular wave generator, where the bipolar triangular pulses are symmetrical. The pulse duration is approx. 1 second and the duration of the rising edge is equal to or greater than the falling edge of the pulse. The duration of the rising edge is equal to or greater than 0.5 msec.
Patent DE-2756787-A1 (DE)
Title: Overcurrent protective switch for communication systems - has switching slide with contacts, in recess of insulating plate, covered by two other plates
IPC: H01H73/30
Filed: 1977-12-20
Abstract: The switch has a holding and release element, overcurrent sensitive, thermally tripped, resettable and mounted in a case. In interacts with a spring loaded switching slide, also in the case. The switching slide (3) is a plate shaped, contacts (12) carrying element placed in a recess (2) in an insulating plate (1) of the same thickness. It is placed between further two insulating plates (14, 15) voering the recess with the switching slide the first plate for the slide guidance. At least one plate has conducting coatings (42, 43) for connection of the overcurrent sensitive element (20) to the circuit to the protected.
Patent DE-2805156-A1 (DE)
Title: Bandsaw for cutting metal bars - has saw carried horizontally on guides with swarf brushes to cut several bars simultaneously
Inventor: ROEDER FRANZ
IPC: B23D53/00
Filed: 1978-02-08
Abstract: The band saw is used for cutting metal bars into given lengths. The saw blade travels horizontally between guide rollers. A number of bars are simultaneously cut. On both sides of saw are provided clamps (6) for a number of adjacent metal bars (4). Saw blade guides (5) are arranged on both sides of a bar, the guides between two bars being provided with swarf removing brushes.
Patent DE-2806046-A1 (DE)
Title: Organo-phosphorus pesticides and nerve gases analysis - by chemiluminescence using chloride ions to increase sensitivity
Inventor: FRITSCHE ULRICH DIPL CHEM DR
IPC: G01N31/22
Filed: 1978-02-14
Abstract: In the analysis of toxic alkyl phosphates based on measurement of the chemiluminescence effect of the reaction between 3-aminophthalic acid hydrazide (APAH), H2O2 and alkyl phosphate in alkaline medium, sensitivity is increased by adding chloride ions. Pref. EDTA is added in a conc. of 2 x 10-4 M. Used in determn. of toxic alkyl phosphates such as nerve gases (e.g. Sarin and pesticides (e.g. parathion). Addn. of chloride ions increases the chemiluminescence effect for alkyl phosphates so that concns. in the nanogramme and sub-nanogramme range can be detected. Alkyl thiophosphate chemiluminescence is not enhanced by chloride ions, but background luminescence is suppressed by FDTAM so that lower concns. can be detected. The method permits qualitative analysis, since different organophosphorus cpds. give characteristic luminescence curves.
Patent DE-2809418-A1 (DE)
Title: Demodulator for frequency-shift-keyed signals - counts down to measure time interval between two consecutive passages through zero to determine frequency
Inventor: POLATZEK HANS-DIETER ING GRAD
IPC: H04L27/156
Filed: 1978-03-04
Abstract: The FSK demodulator measures the time between two consecutive passages through zero in order to detect individual frequencies. The upper first frequency of an FSK signal (of period 2n. Tn) is assigned a first signal level and the lower second frequency (of period 2n. a. Tn) is assigned a second level. The time measurement is accomplished by counting down using time periods of duration Tn: the result mi can lie between n and a.n. The time interval Ti is broken down onto oi periods of duration Tn and ui periods of duration a. Tn, where ui + po = n.
Patent DE-2812332-A1 (DE)
Title: Connector for mounting printed circuit boards - has L=shaped guides for boards holding connecting piece to orthogonally mounted printed circuit board
Inventor: KARAI LAJOS
IPC: H01R12/70
Filed: 1978-03-21
Abstract: The connector, for mounting cards to printed circuit board, consists of two L-shaped guides (2) for the cards (8) and a variable-length connecting piece (1) that connects the cards to the orthogonal printed circuit board (7). The L-shaped guides have feet (4) that engage in slots in the printed circuit board and hold both guides and connecting piece to the board. The longer arms of the guides have channels (9) into which the cards slide.
Patent DE-2812923-A1 (DE)
Title: Polyurethane plant pot, seed tape or soil loosening granules - contain quick lime and polyester poly:ol in cell structure to make compsn. degradable in use
Inventor: UPHOFF HEINRICH-JOSEF ING GRAD
IPC: C08J9/00
Filed: 1978-03-23
Abstract: Polyurethane moulding, in the form of a vessel, tape or spherical particles with a density of 15-800 g/dm3, contains quicklime and polyester polyols in the cell structure, which cause swelling of the surface of the moulding and hence moisture absorption, the cell structure and the chemical structure undergoing continuous disintegration due to the quicklime. The prod. can be used for plant pots, tapes, contg. seeds and granules for loosening soil, since the required rate of rotting can be ensured. The quicklime and polyester polyol or other substance imparting water absorption are added to one of the components before foaming.
Patent DE-2816701-A1 (DE)
Inventor: BRUNE PIT JUERGEN
IPC: F24F6/04
Filed: 1978-04-18
Abstract: The air humidifier has a water storage container (1), a cover hood (2) and, lying between them, a central part (3) on which the devices necessary for the forced air circulation and air humidification are arranged. All electrical devices, for example the operating switch (4), the electric motor (5) for driving the fan blade (9) and the water pump (11), and the electrical terminals, are secured on a common baseplate (20), which is fixed on the central part (3) by means of a snap-in connection (47). In this way the electrical devices can be easily dismantled and replaced without auxiliary means, even by a layman. They can be removed in a simple manner, in particular for cleaning the air humidifier, so as not to expose them to the risk of corrosion when using lime-dissolving agents. <IMAGE>
Patent DE-2826153-A1 (DE)
Title: Drill bit lock for rotary and impact tool - uses balls in recess along bit and groove inside locking sleeve
Inventor: STILTZ ERWIN DIPL ING
IPC: B25D17/08
Filed: 1978-06-15
Abstract: The method of securing a drill bit in a rotary and impact drill uses locating and locking balls. The drilling bit (3) has a hexagonal shaft (7) which fits inside the tool holder sleeve (1) of the drill. This hexagonal part is divided into two lengths by a groove (9) into which fit locating balls (4). These balls fit into holes (5) through the sleeve and prevent the drill bit from falling out. The sleeve has a hexagonal portion which matches the hexagonal part of the bit. An adjusting and locking sleeve (2) around this sleeve, has a groove (8) along its inside which allows the balls to move radially outwards to allow the bit to be removed.
Patent DE-2828936-A1 (DE)
Title: Human or animal therapy instrument - has flexible insulating belt supporting metal portion bearing against skin
Inventor: ELLRICH JOHANNES E
IPC: A61N1/24
Filed: 1978-06-30
Abstract: The therapy instrument is for human beings or animals, having a metal portion in the form of an unclosed belt placed round the body or limb. It incorporates a flexible supporting belt (1) of non-metallic, electrically insulating material and with a buckle (2). This supports the metal portion (3) on the inside when applied to the skin. The supporting belt is an arm strap and of plastic fibre, woven or knitted. The buckle can be of electrically insulating material, or covered with it, and the metal portion can be a wire coil, whose lengthwise axis runs parallel to that of the supporting belt.
Patent DE-2831885-A1 (DE)
Title: Shading stencil for technical drawings - is made from transparent plastics material and is fitted with fixed parallel shading grooves
Inventor: WUNDKE HANS-PETER
IPC: B43L13/20
Filed: 1978-07-20
Abstract: The shading stencil is used in the prodn. of technical drawings. The drawings are intended to be used as cross section drawings, with cross-hatching according to normal practice. The shading stencil is fitted with shading grooves which are let in to the stencil material over the whole of its surface. The object of this system is to permit a quicker and cleaner shading operation, whilst maintaining exact distances between the individual shading lines. The stencil is made from a light transparent plastics material which allows good visibility of the surface to be shaded.
Patent DE-2836845-A1 (DE)
Title: Milk volume measurement - preceded by air removal in deaeration space with revolving centrifugal blades
Inventor: TUCHENHAGEN OTTO
IPC: A01J5/01
Filed: 1978-08-23
Abstract: The volume of milk accepted intermittently from a delivery of churns is measured free from air inclusions by passing the milk through a deaeration space in which motor driven centrifugal discs with blades remove bubbles by centrifugal action. The milk descends through a control space with contact electrodes into another centrifuge bowl, where cavitation removes the rest of the air before the milk is admitted to a flowmeter. This ensures that the air which is unavoidably present when milk is accepted intermittently from churns is completely removed before the volumetric measurement. The appts. requires min. floor space.
Patent DE-2844831-A1 (DE)
Title: Stock requirement assessment gauge - has two concentric discs with scales representing amount sold delivery and order period etc.
Inventor: PETERS VOLKER
IPC: G06G1/00
Filed: 1978-10-14
Abstract: The gauge has two mutually sliding scale elements each carrying at least one cursor. Both scale elements have at least two log scales, with the beginning and end coinciding. One scale of each pair is divided into 10 parts, while the other scale of each pair is divided by the number of days in the week on which order can be placed, e.g. divided by 5 corresponding to Monday to Friday. Pref. the two scale elements comprise two concentric plastics discs secured together by a pin at their centre, allowing their relative movement with a radial cursor co-operating with both scale elements also held in place by this pin. The different scales may be marked in different colours. Pref. the scales respectively represent the goods sold and the selling time, the sum of the order time and the delivery period and the number to be ordered.
Patent DE-2845879-A1 (DE)
Title: Gas or hydraulic friction clutch - has straps restraining piston, cylinder and pressure plates radially, but allowing axial movement
Inventor: DAHMEN FRIEDHELM
IPC: F16D3/60
Filed: 1978-10-21
Abstract: One half of a hydraulically-operated friction clutch forms the outer casing (1), while the other half consists of a shaft hub (8) bouded by flanges (9, 10), to which are attached the hydraulic cylinder (7) and piston (6) and the double pressure plates (5). The application of hydraulic pressure causes the pressure plates to be pressed against the inclined inner surfaces (3) of the casing (1), to transfer the torque. The attachment bolts (13, 14) for the piston (6) and cylinder (7) are linked alternately by two rings of straps (11). These allow axial movements while maintaining the assembly concentric to the hub.
Patent DE-2849165-A1 (DE)
Title: Domestic rotary ironing machine with wetting device - has inlet of cylinder provided with water tank and row of holes opened by shoes pivoted by moving ironing articles
Inventor: ROJAHN BERND ING GRAD
IPC: D06F67/00
Filed: 1978-11-13
Abstract: Domestic rotary ironing machine with an article wetting device which extends along the whole width of the ironing cylinder, has the device arranged at the inlet of the cylinder and formed by a number of depending axially spaced shoes whose water supply is controlled by the moving articles to be ironed. Pref. the shoes are pivotally mounted and on pivoting by the articles to shoes uncover a water dispensing apertures in a water reservoir.
Patent DE-2850100-A1 (DE)
Title: Holder for thread-cutting die nut - has projections in bore of plastics holder to match flats of nut
IPC: B23G1/26
Filed: 1978-11-18
Abstract: A die nut (1) for cutting external screw threads is embedded in a plastics holder (2) instead of being clamped in the conventional metal holder. The plastics holder has two arms (3) extending from a central boss (6) with a bore (5) which guides the die nut during the thread cutting. The die nut has two diametrically opposite recesses (7) which match projections (8) from the holder (2) and ensure a permanent grip. The plastics holder is much cheaper to make than a metal one and is permanently fixed to the die nut throughout its useful life.
Patent DE-2855369-A1 (DE)
Title: Boring head for machine tool - has mounting bar supported on centres and passed through hollow work to provide rigidity
IPC: B23B29/02
Filed: 1978-12-21
Abstract: The hollow cylindrical workpiece held in a chuck (1) has the drill slide (5) moved along its interior on a threaded spindle (8) mounted in or on the spindle sleeve (3). This sleeve has a rectangular or square cross-section and a groove for the threaded spindle. The drill slide has a recess (11) in which can engage a catch (12) on the sleeve mounting block (4) which can be e.g. a headstock. The spindle sleeve passes through the centre of the workpiece and onto the centering tip (13) of the machine main spindle. This avoids deflection of the spindle sleeve.
Patent DE-2909318-A1 (DE)
Title: Separator for removing solids and liq. from gas stream - includes sepn. chamber contg. tangential baffles and creating centrifugal sepn. forces
IPC: B01D45/12
Filed: 1979-03-09
Abstract: The gas travels upwards through a cylindrical casing, which forms a sepn. chamber contg. a basket on which a circular row of vertical baffle plates is located. The baffle plates are aligned tangentially w.r.t. the bore of the chamber. In the bottom gas inlet of the casing are blades which create a vortex in the gas, so centrifugal force drives the solids and liqs. radially through the gaps between the baffle plates. The solids and liqs. then flow down the wall of the chamber to an outlet. The baffle plates are located on a pitch circle with a dia. corresp. with the dia. of the gas inlet and outlet. A sepn. efficiency of >99.5% can be obtd. with gas speeds up to 15 metres/second.
Patent DE-2910376-A1 (DE)
Title: Axially flexible coupling for coaxial shafts - is formed by bent arms of cross shaped plate, whose free end are secured to coupling elements
Inventor: HILLMANN REINHOLD
IPC: F16D3/00
Filed: 1979-03-16
Abstract: The coupling element provides axial, angular and lateral flexibility, but prevents any freedom of rotation. It is produced by using a cross-shaped metal plate. Opposite arms (2a, 3a) of the cross plate are bent in axially opposite directions so that two pairs of U-bends are formed. The axially spaced parallel pairs of arms are provided with equally spaced fixing holes (6, 7). The arm ends are also provided with circular recesses so that the four segments (5) form a projected circle which is used for the location of the coupling on installation.
Patent DE-2910738-A1 (DE)
Title: Brick block for tall structures - contains two longitudinal grooves in which prefabricated thermal insulation panels are located
Inventor: HINSE FRANZ
IPC: B28B7/16
Filed: 1979-03-19
Abstract: The top surface of the brick block has a longitudinal groove (1) which projects vertically downwards into the brick block, whereas in the bottom surface is a longitudinal groove (2) projecting vertically upwards into a brick block. Both grooves extend over the entire length of the brick block, and have a depth exceeding half the height of the brick block. The grooves may be closed at the end of the bricks. Into each groove is inserted a prefabricated thermal insulation panel (4). The panels can be pushed horizontally along the grooves. The panel on the inside of the brick is fixed in its groove, eg. by groove webs, but the outer groove is wider than its panel. Both grooves pref. taper towards their base so as the anchor panels.
Patent DE-2917634-A1 (DE)
Title: Oscillating drive for bucket dredger - has flywheel and rocker arm system with spring-loaded piston and cylinder crank arms
Inventor: BUGE HORST DIPL ING
IPC: E02F3/14
Filed: 1979-05-02
Abstract: The drive for the buckets of a bucket dredger, includes a swinging frame (7) with return spring (13) each end and with a crank arm (14) each end connected to a flywheel (16) for each arm. This frame encloses the drive shaft (5) symmetrically and incorporates a braking system. This system includes a roller (9) each side of a drum (4) around the shaft, which is forced alternately against the drum. Each roller is mounted on the end of a swinging arm connected to a rocker arm (8). The two rocker arms are connected to two reciprocating arms (10) in line with each other, with their other ends forming a piston and cylinder with a spring (11) between them, and with the piston attached to the drive shaft (5).
Patent DE-2920204-A1 (DE)
Title: Dental plastic polymerisation - by optical light guide at initially reduced voltage for beam alignment
Inventor: NATH GUENTHER DR
IPC: G02B6/42
Filed: 1979-05-18
Abstract: An appts. for the polymerisation of dental plastics (tooth filling) by visible radiation includes an incandescent lamp, a reflector and an optical guide. A transformer with a tapping supplies to the lamp a voltage low enough (20-30% of nominal) to allow the light beam to be directed to the spot desired, without producing any polymerisation. The eliminates the dazzling effect of the beam at full power and allows any adjustment to a filling before the full power is turned on. The life of the lamp bulb is increased because the high current inrush when switching ON at full voltage is eliminated.
Patent DE-2924383-A1 (DE)
Title: Refuse transfer station for vehicle on platform - has compaction chamber prior to transfer into large container vehicle on ramp with buffer
Inventor: DULIAS KLAUS ING GRAD
IPC: B65F9/00
Filed: 1979-06-16
Abstract: The refuse transfer station comprises a platform for refuse vehicles and a refuse compacter with a drop shaft pressure head and compacting chamber. A ramp provides access for a large container vehicle. The platform side adjoining the drop shaft has a support which does not absorb horizontal forces whilst the approach side is rigidly supported on the underground. The non-stationary ramp has a buffer so that any horizontal forces arising from contact by the vehicle are frictionally transferred to the ground. The compacter is carried on the ground via an independent frame. The chamber is releasably coupled to the vehicle during compacting.
Patent DE-2931823-A1 (DE)
Title: Noise insulating support bracket for pipe-wall fixture - has additional inertia element on support spindle of shell made from sound absorbing material
Inventor: WERNER MANFRED DIPL ING
IPC: F16L55/035
Filed: 1979-08-06
Abstract: The support bracket is for fixing a pipe to a wall (8) or ceiling to isolate the noise generated or transmitted in the pipe from the building. The fitting is made with a shell (1) which surrounds the pipe (2) at one end and the other end is attached to the building. The shell and the fixing element is made from flexible sound-absorbing material. The fixing element has an additional component (12) with a heavy mass. The shell (1) is attached to a rod-shaped section (3) so as to keep it away from the wall. The heavy noise absorption component is fitted to the rod section between the wall (6) and the shell.
Patent DE-2936597-A1 (DE)
Title: Accessory device attached to ski - is made as body with bottom surface fitted to front part of ski and combining safety storage for ski stocks with ski diverter
Inventor: SEEFELDER JOSEF
IPC: A63C5/06
Filed: 1979-09-11
Abstract: The ski accessory consists of a body with a flat bottom surface (16). The body (14) of the ski accessory includes an inserting hole (28) for the points of ski stocks which extends from the upper surface (20) towards the bottom surface (16). The inserting hole for the ski stock is formed almost cylindrical in shape, with its cross section converging towards the bottom surface. The body of the ski accessory is also used to prevent the crossing over of skis during their forward and downhill movement.
Patent DE-2938107-A1 (DE)
Title: Inhibiting mould growth on agricultural produce - by surface heating prior to storage
Inventor: WIENEKE FRANZ PROF DR ING
IPC: A23B7/02
Filed: 1979-09-20
Abstract: Method of destroying microorganisms on agricultural produce prior to storage comprises passing the produce through a "heat field" so that the surface of the individual pieces (e.g. cereal grains or potato tubers) is raised to a temp. above 60 deg.C. The treatment delays or prevents mould growth during storage. It dries the surface of the produce and thus inhibits reinfection and facilitates removal of adherent soil. Energy costs are low.
Patent DE-2938678-A1 (DE)
Title: Diesel fuel oil pump high pressure pipe system - contain pipe casing ends, respectively secured in nipple nut by ball race, encompassing intermediary pipe end
Inventor: WEINHANDL FRANZ
IPC: F16L39/00
Filed: 1979-09-25
Abstract: The conduit system is for high pressures e.g. between pump and injector, and has a metal pipe which is encased, and which has connections. The casing (8) is fixed to nipple nut connections (6,14) both rotatably and releasably, and its ends project into a transition oiece (10,11). One of the transition pieces (10) fits into a widened section (13) of a nut (6), and with the aid of balls (17) located in holes (16) of the nut (6) and pressing into a channel or recess (19) of the piece (10) itself, is secured in its position. One (11) of the transition pieces also encompasses the end (23) of an intermediary pipe.
Patent DE-2947522-A1 (DE)
Title: Wind power meter with propeller-hysteresis braking - has interchangeable magnets and reversal material for different wind characteristics
Inventor: BOETTCHER ALFRED PROF DR
IPC: G01P5/06
Filed: 1979-11-26
Abstract: The wind power meter has a load connected to a propeller generating a working power per revolution large in comparison to the propeller bearing frictional losses. Hysteresis magnetic braking is used to reduce the dependency of the measurements on the propeller rate of revolution. A further improvement in accuracy is achieved by adjusting or replacing magnets to suit local wind speed spectral changes. The number of revolutions is recorded as an integral value. The output power is produced by cyclic magnetic reversal of ferromagnetic materials moved relative to the fields of the permanent magnets. The magnets and the ferromagnetic material are easily removable and interchangeable. The ferromagnetic material is so arranged that the eddy current braking effect caused by its movement is small compared to the hysteresis braking effect.