baber/WOPTO huggingface dataset:
Patent DE-2527810-A1 (DE)
Title: Heat exchanger of gas and air counterflow type - has even air flow through exchanger avoiding fall in pressure through use of shutters
Inventor: PARKER KENNETH O
IPC: F28F9/22
Filed: 1975-06-21
Abstract: Heat exchanger of counterflow type where cool air enters through a pipe 24, and goes through tubular channels 17, made up of several pieces with openings to the air channel plates 30, which are arranged in the exchanger core in sandwiched layers with hot gas channels and leaves through similar channel 16, and tube 28, as hot air. Hot gas enters through tube 22, goes through its channels in counterflow to air to leave through tube exit 23. The tubular parts that form channel 16 have sections of larger diameters at their ends and form a chamber. Slots in these tubes are provided at angular position to form a shutter. This controls the air flow by gradually changing its direction, avoids a fall in pressure, and gives an even flow through the air channels of the exchanger core.
Patent DE-2530609-A1 (DE)
Title: Anti blocking brakes for train - with wheel speed set to calculated slip for maximum traction
Inventor: HAMACHER ARTUR DIPL ING
IPC: B60T8/17
Filed: 1975-07-09
Abstract: The train is fitted with sensors which monitor the wheel speed as well as the train speed. The two sets of signal are processed by comparator circuits, with reference to control signals. The comparator outputs are processed by pulse width modulators and pulse frequency modulators to provide control signals for electro-magnetic brake valves. The system provides for brake force increase, decrease and for holding it constant. The optimum braking force is achieved with a set slip value. The system can also be coupled to traction control for regulating the starting traction of the train.
Patent DE-2532436-A1 (DE)
Title: Rotational direction indicator for pump motors - is fitted with elastic tongue gradually moved away from cooling fan by air flow induced by fan
Inventor: NEUGEBAUER RUDOLF
IPC: H02K11/21
Filed: 1975-07-19
Abstract: A rotational direction indicator is designed esp. for pump motors with fans. An elastic tongue fixed to the motor housing is brought into and out of engagement with the fan by the air stream produced by the fan. The tongue is pref. a leaf spring mounted at one end on a spindle in a frame fixed to the motor housing. The frame is pref. a moulded plastics unit or an aluminium casting mounted at an angle of approx. 45-60deg. to the motor bearing axis.
Patent DE-2537113-A1 (DE)
Title: Counter system with thyristors - is used for counting pulses and switching load current circuits, and for switching relays in telephone exchangessees
Inventor: PAPKE WOLFGANG
IPC: H03K23/84
Filed: 1975-08-20
Abstract: Thyristors are arranged in an even and an odd thyristor groups and the operational states of the thyristors are monitored by transistors. When a pulse is received at a timing input connected to the thyristors through a pulse distributor and ignition multiples individually allocated to the thyristor groups, a distributor applies the pulses to the one or the other multiple in accordance with the counting circuit state, so that an even or an odd thyristor is ignited. After a thyristor is ignited, the preceding thyristor is extinguished. Load current circuits are connected through cathodes and/or anodes and decoupling diodes and currents in the one or the other direction.
Patent DE-2538384-A1 (DE)
Title: Receiver for time signals and standard frequency transmitter - operates on long waves below broadcasting frequency range
Inventor: MARABINI FRIEDRICH ING GRAD
IPC: G04G9/00
Filed: 1975-08-28
Abstract: Time signals are coded, and modulated on the standard frequency. The receiver has an aerial amplifier and an attachment with subscriber equipment containing decoder and indicating circuits. The receiver aerial (1) is mounted in the head station (5) of a communal aerial system. A frequency convertor converts the time signals reception frequency into a free frequency range withint he communal aerial system transmission range. Means are provided which feed the converted time signal into the communal system distribution network.
Patent DE-2540203-A1 (DE)
Title: Detection of direction finding disturbances - using voltage proportional to blurring derived from evaluation of superimposed frequencies
Inventor: SAUR HERMANN
IPC: G01S3/04
Filed: 1975-09-10
Abstract: Blurring voltage frequencies are analysed, and if their spectrum contains a d.c. component, it indicates distortion due to reflections from one or several stationary reflecting objects. If the spectrum contains a.c. components with frequencies up to 5 Hz, it indicates coherent d.f. distortion by reflections from moving reflecting objects. If it contains one or several discrete spectra above 5 Hz, it indicates an incoherent disturbance by one or several third senders operating in the same frequency band. The various frequencies are separated by appropriate bandpass filters. These are followed by rectifiers, comparators and an OR coupling circuit.
Patent DE-2541582-A1 (DE)
Title: Directed explosion pressure waves production - using a helically wound detonator cord supported on a plastic and pref. grooved tube
Inventor: SEIFFERT MANFRED DR
IPC: F42B1/00
Filed: 1975-09-18
Abstract: Prodn. of the pressure waves from an explosive body comprises forming a detonator cord extending in a helix of length proportional to the dia. of the windings. The pitch dimension is such that the detonation velocity in the direction of the axis of the helix is equal to the velocity of the sound pressure wave in the transfer medium. Pref. the support tube has a spiral groove for positively locating the detonator cord. Enables the explosive body, partic. under water, to be located in a position remote from the target. It is highly directional e.g. with an explosive helix of length 50 cm and dia. 2,5 cm. animal life was killed and glass sphere exploded in the direction of propagation at 10m, while in the opposite direction there was no action on either the animals or the glass spheres at a distance of 1m. Seismic measurements can be made without perturbing echoes. The process can be used for sheet metal forming under water, and underwater signalling over long distances.
Patent DE-2548702-A1 (DE)
Title: Piston for hydrostatic or axial machines - has noise absorbing elastic element or pressure pad behind piston head
Inventor: HEYL WALTER DIPL ING
IPC: F04B1/04
Filed: 1975-10-30
Abstract: The piston is for a hydrostatic piston machine or an axial piston motor or pump. Noise damping is achieved without impairing the volumetric efficiency. Between the piston head (1) and the piston extension or rod (2) there is an elastic element (12) that acts as a damper. Where the piston is used with an angled disc machine, the piston and disc are separated by a hydrostatic cushion pad in the pressure chamber. Pistons used in axial piston machines have a drive flange construction, with the damping element being a pressure chamber connected via a borehole in through the circumference of the piston.
Patent DE-2549873-A1 (DE)
Title: Automatic rewind and stop mechanism for tape recorder - with switch means controlling motor for rotating drive wheel
Inventor: KATO SABURO
IPC: G11B15/44
Filed: 1975-11-06
Abstract: The mechanism employs a pair of driven wheels (2-1, 2-2) rotating in a common plane about parallel axes, and a common rotating drive wheel (9) positioned between them and movable in a direction at right angles to the line joining the two latter parallel axes, to come into driving contact with one of the driven wheels (2-1, 2-2). The drive wheel (9) is rotated in a given direction via a band transmission from a drive motor and is attached to a pivoting arm (4) to bring it into contact with one of the driven wheels (2-1, 2-2) in dependence on the direction of rotation of the drive wheel (9). A spring (10) biases the drive wheel (9) towards the line joining the axes of the driven wheels (2-1, 2-2) with switching means (SW-1, SW-2) responsive to movement of the drive wheel (9) against the spring bias to control the drive motor to reverse the rotation of the drive wheel (9) or bring it to rest.
Patent DE-2551545-A1 (DE)
Title: Cassegrain aerial for very short wavelengths - has horn exciter with circular cross:section and ring: shaped ribs one quarter wavelength deep
Inventor: REBHAN WOLFGANG DIPL ING
IPC: H01Q19/19
Filed: 1975-11-17
Abstract: The cassegrain aerial rotates around a central axis and receives very short wavelengths. It consists of a main reflector (1) and a reflector (2) fed via a supply waveguide (3). There is also a sub-reflector (4) in the short range field of the exciter, which is a horn of circular section, a few wavelengths wide. The symmetry of the horn field on the internal surface of the horn is achieved by ring-shaped ribs with a depth which is approximately one quarter wave length. Dielectric layers are used for padding. A smooth wave front is obtained in the horn aperture by means of a lens.
Patent DE-2607452-A1 (DE)
Title: Slotted rectangular anchor plate - has hinged load attachment to produce perpendicular stress for installation on concrete wall
Inventor: LIPPERT WOLFGANG ING GRAD
IPC: E04B1/41
Filed: 1976-02-24
Abstract: An anchor for the location on a concrete wall (1) is of rectangular shape (4) and is slotted diagonally. A triangular recess (11) on the wall locates the corner of the anchor which is provided with a tapped hole for the bolt (3). The outside and slotted corner of the anchor plate which carries a hinge pin (7), retains a swivel link (8). The link is also located by the diagonal slot. A load attachment bar (9) is connected to the swivel link (8). Hence, regardless of the angle at which the load is acting, the resulting stress on the anchor bolt (3) and thus on the wall, is always at right angle to this wall.
Patent DE-2608629-A1 (DE)
Title: IC engine and generator set for small power station - produces mechanical heat by increasing engine speed for short time
Inventor: HEIN KARL DIPL ING
IPC: H02P9/14
Filed: 1976-03-03
Abstract: The generator set for a small power station, consists of an IC engine driven by gas or oil and linked to a generator. The set produces both heat and electricity. The IC engine normally runs at a low economical speed. The generator can be switched and is directly coupled to the engine or via a fixed gear. The engine can also be operated for a short time at a less economical higher speed in order to produce more mechanical effort and therefore greater heat. Whilst this is happening the generator frequency is kept constant by switching its poles. Alternatively, the frequency may be kept constant by a variable gear between the engine and generator.
Patent DE-2609072-A1 (DE)
Title: Seat belt locking plate hook - is moved into easily reachable position by door closing or ignition switch using spring and pulley system
Inventor: SCHIMANIETZ NORBERT
IPC: B60R22/03
Filed: 1976-03-05
Abstract: The design concerns a mechanism which automatically moves the seat belt locking plate into an easily reachable position, after the drive or passenger closes the door or the ignition is switched on. The locking plate (15) of a three-point suspension seat belt system is placed on hook (16) when not in use. The hook is fitted on a base block which slides in a C-shaped rail fitted over the door entrance. The block is fitted at the end of a cable assembly by lug (30) from where the cable runs over a pulley towards the car front. A further pulley changes its directions downwards towards pulley (29) from where the end of the cable connects to the window frame (31) of the door. The block is also fitted with tension spring (32) which endeavours to pull the block towards the car front.
Patent DE-2613556-A1 (DE)
Title: Water-vapour detector for weather balloons - has photoelectric elements in air tube for modulating radiosonde transmitter
IPC: G01W1/00
Filed: 1976-03-30
Abstract: The radiosonde detector for meteorological observations comprises a serpentine tube open at both ends to the atmosphere. the tube is mounted vertically on the side of the instrument gondola of a weather balloon so that rising and falling air currents pass through the length of the tube. An internally-mounted photoelectric transmitter (8) uses a light-emitting diode pulsed by an integrated circuit oscillator of about 100-1000 Hz. A photo-electric detector (11) has an optical filter matched to the wavelength of the emitter and the amplified output is used to modulate the sonde transmitter. The tube is made of aluminium with an outer-reflecting surface colour and the inner bore is matt black.
Patent DE-2615503-A1 (DE)
Title: Stabilised vehicle engine mountings - has impact absorbing struts set at different angles with elastic securing eyes
Inventor: MUECKE DETLEF ING GRAD
IPC: B60K5/12
Filed: 1976-04-09
Abstract: The engine and transmission are secured in the engine compartment by a variety of struts set between engine mountings and chassis mountings. The struts are angled to absorb both vertical and horizontal forces as well as transverse vibrations. The struts are linked to the mountings by elastic clad eyes so that transmission vibrations are not transmitted to the passenger compartment. The struts are designed to bend or telescope on severe impact so that the impact forces are absorbed without pushing the transmission into the passenger compartment. The struts can have bands to promote buckling upon impact or telescopic or deformable sections.
Patent DE-2616520-A1 (DE)
Title: Oscillating grinder with dust extraction - has sealing frame fixed to cover plate and has paper clamping device on grinding plate
Inventor: ARMBRUSTER GERHARD
IPC: B24B55/10
Filed: 1976-04-14
Abstract: An oscillating grinder has a dust extractor and a built-in drive motor. A grinding plate is gripped by a cover plate. A sealing frame can be fixed to the cover plate and on the grinding plate is a clamping device for the grinding paper with an operating part. This clamping device is in the form of a two-armed lever and closes itself under spring pressure. Specifically, there is an opening, which is closed by a closing part, in the cover plate (5) in the region of the operating part, especially in the region of the free lever arm (15, 12) of the clamp strap (10, 11). More specifically, the closing part is formed onto the sealing frame (7) and the cover plate (5) has a protuberance (21) in the region of the operating part.
Patent DE-2622378-A1 (DE)
Title: Colour TV signal processing circuit - compensates time errors and increases noise suppression by separating chroma and luminance components
Inventor: TALLENT MICHAEL W
IPC: H04N9/896
Filed: 1976-05-19
Abstract: The colour television signal processing circuit compensates time errors down to below 4 sec and has improved noise suppression. A colour processing unti receives the input tv signal and is couple to a phase locked loop. The incoming ty signal is broken down into its chrominance and luminance components. The chrome component is converted into its equivalent chroma signals synchronised in phase with the variable-frequency input reference clock signal. The luminance signal is delayed by one line and then recombined with the chrome signals.
Patent DE-2622750-A1 (DE)
Title: Water or air carrying solar heat collector - has window with evacuated tubes bearing against heat exchanger at rear
Inventor: BANNIGAN JOHN
IPC: F24S10/75
Filed: 1976-05-21
Abstract: The solar heat collector comprises a plate-shaped heat exchanger with one or more passages for a heat-transfer medium, together with a heat-insulated window. The latter comprises a number of closed and evacuated transparent tubes placed against each other. The sides of the tubes (1) nearest the heat exchanger (3) bear against it. The exchanger can have an undulating profile with grooves of circular arc section into which the tubes fit. It can be double walled, with the passages for the medium between the walls. The undulating rear wall can be rigid, while the front wall against which the tubes bear is merely of thin sheet material. This is sealed to the rear wall along the edges, hanging freely between the intervening ridges.
Patent DE-2624717-A1 (DE)
Title: Automatic polarisation analysis appts. - has two optical modulators controlled by square wave AC
Inventor: YAMAMOTO TADAAKI
IPC: G01N21/21
Filed: 1976-06-02
Abstract: The automatic polarisation analysis system has alight source (1) and a collimator lens system (2) followed by a monochromatic filter (3) passing light of 546 m u. There is a polariser whose optical axis is rotatable, it is driven by a servomotor. The polariser is followed by a quarter wave plate (2). The test sample (5) follows the quarter wave plate and is followed by a light modulating crystal (6). This is controlled by AC from a switching network (11). A square wave is produced. The first crystal (6) is followed by a quarter wave plate (7), a second crystal modulator (6') and an analyser (8). Lenses (9) focus the light onto a photocell (10).
Patent DE-2627402-A1 (DE)
Title: Windscreen washer water heater - uses heat exchanger which clips onto exhaust pipe and is designed for internal swirl action
Inventor: GERICKE GUNTER
IPC: B60S1/48
Filed: 1976-06-18
Abstract: The line (2) between the washer pump and the windscreen washer jets is fitted with a simple heat exchanger (8) which is clipped to the exhaust pipe (15) or the exhaust manifold. The heat exchanger can be fitted in any convenient site and can be applied to existing windscreen washers and vehicles. The heat exchanger housing is held on the exhaust pipe by a clamp, with its bottom surface contoured for good heat transfer. The heat transfer is enhanced by a metal bottom while the inlet and outlet pipes to the heat exchanger are positioned to generate a swirl action for even heating. No modifications are required in the exhaust system.
Patent DE-2640259-A1 (DE)
Title: High resolution speed control for train - has low gain proportional control operating on acceleration signals
Inventor: HAHN KARL DIPL ING
IPC: B60L15/20
Filed: 1976-09-04
Abstract: The remote control for the train has a low gain proportional control circuit and provides correction from the prescribed speed by addition of torque proportional signals to the reference speed signal. The torque signals are either positive or negative depending on the train operating mode. The proportion regulator has a small gain and advances correction circuit for the remaining standard deviation o +/- the speed with an additive switch for a thrust or braking force proportional to the speed.
Patent DE-2646043-A1 (DE)
Title: (17-Alpha)-(3)-hydroxypropyl-(17-beta)-hydroxy androstenones - aldosterone antagonist type diuretics and intermediates for spironolactone
Inventor: WIECHERT RUDOLF PROF DR
IPC: C07J53/00
Filed: 1976-10-08
Abstract: Androst-4-ene-3-ones of formula (I) are novel cpds. (where R1=H or an organic or mineral acid radical; R3=methyl or ethyl; R4=H or methyl; and R5 is lower alkyl). (I) are themselves pharmacologically active or are intermediates for the prepn. of medicaments. 17alpha-(3-hydroxypropyl)- 17beta-hydroxy-7alpha-acetylthio-androst-4-ene-3-one is an intermediate for 'spironolactone', i.e. 3-(17beta-hydroxy-7alpha-acetylthio-3-oxo-androst-4-ene-17alpha-y- l)-propionolactone which inhibits aldosterone synthesis. (I) are diuretics of the aldosterone antagonist type exerting an inverse action to that of deoxycorticosterone on Na and K excretion.
Patent DE-2647667-A1 (DE)
Inventor: HETKE ADOLF
IPC: B22C7/02
Filed: 1976-10-21
Abstract: A method of making a more economical and reliable treating agent for use in late metal treatment when pouring metal castings. The treating agent is defined as an essentially homogeneous solid cast block preferably containing alloying ingredients to nodulize or inoculant ferrous metal. Each block is designed to present a generally uniform reaction surface to molten metal to be treated. This is obtained by casting the block to a shape which snugly fits a prepared basin in the mold gating system over which the molten metal to be treated must flow, or to cast the block in an annular configuration through which the molten metal must flow. The latter block has contoured inner surfaces which maintain a generally constant reactive surface as the block is consumed. These blocks are preferably prepared by simultaneously casting a large number in closely nested relation. Each mold for said blocks receives molten material, out of which the agent is formed, from a common sprue; runners interconnect the mold cavities and sprue, for example, in a simulated "Christmas tree" arrangement. The gating system and mold cavity pattern, for casting the treating agent to a special shape are all comprised of a material that will vaporize upon contact by the molten treating agent, such as polystyrene. The unitary tree structure of foam patterns and gating system is placed in a flask and surrounded by unbonded heat absorbing particles, such as sand or steel shot. Rapid solidification is assured by the selection of heat absorbing particles and by the use of the vaporizable patterns to avoid noticeable segregation in the alloy blocks. The blocks formed for the treating agent are characterized by increased homogeneity, absence of undesirable segregation, absence of internal oxidation, and absence of organic or refractory impurities; the blocks are less costly to make both as to capital requirements and operating expenses.
Patent DE-2648353-A1 (DE)
Title: Two-chamber oil burner - has IC engine combustion products fed to inner chamber with flow reversal at end into outer chamber with evaporator at inlet
Inventor: LEISTRITZ HANS KARL DR
IPC: F01N3/26
Filed: 1976-10-26
Abstract: The oil burner has a first chamber for secondary burning of the combustion products of an internal combustion engine, using a first oil supply. The flow of combustion products is reversed over the outside of the first chamber into an annular second chamber where further combustion air is added. The flow enters the second chamber through an annular inlet zone containing an annual air vaporiser for a second oil supply which, above a given temp. replaces the oil supply to the first chamber. A separate supply of hot air is fed to the vaporiser.
Patent DE-2653091-A1 (DE)
Title: Verification of signature on identity card - uses digital comparison of optical reading of hand written signature and magnetically stored data
Inventor: BRUECKLER ANTON
IPC: G07C9/00
Filed: 1976-11-23
Abstract: An automatic checking station provides verification that the handwritten signature on an identity card corresponds in every respect with that indicated by a magnetic recording strip on the card. The identity card (5) is roller fed (6) past two readily stations; one using optical sensing of the handwritten signature (2) and a magnetic pick up for recorded data. The reflected signals from light beams (1) are transmitted over logic to coding and decoding stations (7, 10) controlled by dock generators (8, 9). Outputs (14, 15) carry signals indicating acceptance or rejection of the card.
Patent DE-2655141-A1 (DE)
Title: Powder material agglomerator - with heating facilities for double walls of vibrating trough and exhaust duct
Inventor: BONGERT WILHELM
IPC: B01J2/16
Filed: 1976-12-06
Abstract: A device for the agglomeration of material with the consistency of powder or dust consists of an enclosed vibrating trough with a perforated bottom and twith inlets and outlets for a gas/steam mixture. The walls of the vibrating trough and/or of the exhaust ducts are fitted with inlets and outlets for a heating medium. This prevents uneven condensation of the steam, combined with clogging and deposits of fine dust cakes. The fluidised bed can now be maintained continuously and expenses for repairs and downtimes are saved.