baber/WOPTO huggingface dataset:
Patent DE-2346957-A1 (DE)
Title: Detector for direct current - gives instantaneous reading of current in rectifying networks without voltage reaction
Inventor: GOLLER ALOIS
IPC: H02H7/125
Filed: 1973-09-18
Abstract: The apparatus is used in a bridge type rectifier network fed by three-phase a.c. The load is supplied by d.c. from switching rectifiers so that a variable current is produced. To measure the current, a transformer is used, producing a three phase a.c. proportional to the a.c. input. The three-phase a.c. from the rectifier is rectified, using a set of non-switching rectifiers. A resistor is connected across the measuring rectifier bridge output. A seco nd resistor is connected to one of the terminals and to an amplifier, with its positive terminal connected via a resistor to earth. A resistor and capacitor are connected in parallel across the amplifier.
Patent DE-2347671-A1 (DE)
Title: Hydraulic oscillator with two moving parts - has reciprocating piston in cylinder and reciprocating reversal valve in chamber
Inventor: VOGEL ARTHUR E
IPC: F01L21/02
Filed: 1973-09-21
Abstract: Hydraulic oscillator with only two movable parts consisting of a reciprocating piston in a cylinder and a reciprocating reversal valve in a chamber. There are means to generate different flow conditions at opposite ends of the valve in the chamber, which include inlet and outlet orifices in the cylinder, connected with the valve chamber and closed and released by the piston during its reciprocation. The movable parts are in a housing with a main inlet and outlet. The valve has a flow passage between its ends and this is continuously connected with the main inlet, while the opposite ends of the valve chamber are permanently connected to the main outlet.
Patent DE-2349217-A1 (DE)
Title: Rotatable drum for holding sheet in printing machine - has rail located in groove running parallel to drum longitudinal axis
Inventor: DISTLER WALTER
IPC: B41J15/02
Filed: 1973-10-01
Abstract: The rail is coupled to two carrier disc which are mounted on the axle of the drum at its ends and are able to rotate freely. An arresting unit is associated with each disc and comprises an electromagnetic bolt which fits into a notch in the disc. The rail rests in a groove in the drum surface next to the clamps on the side furthest from their inlet side for the recording sheet. The clamps are mounted on an axle which has couplings on its two ends for raising the rail via two spring-loaded pins. During printing, one end of the sheet is held by the clamps and the other by the rail. In this way the sheet is correctly tightened and held in place.
Patent DE-2359169-A1 (DE)
Title: Sledge with frame that folds together - has two half length skids that fold under seat hinges and locking system
Inventor: KAYSER WILFRIED
IPC: B62B13/16
Filed: 1973-11-28
Abstract: The advantage claimed for the design is that it is possible to alter the type of skid used or to use wheels or to change the type of seat. The skids are divided into half lengths and fold under the seat by means of hinges. The front half of the seat top folds back over the rear part of the seat. There is a locking bolt on each side of the sledge to keep the half sides rigid in use. Diagonal braing struts fit onto the side edges of the seat and the bottom edges of the skids. The bracing struts may be cord or cable tensioned between the lugs on he sledge vertical sides, in a cross shape.
Patent DE-2403150-A1 (DE)
Title: Fastening for handles on saucepans etc. - comprises punched-out plates with resilient locking elements providing contact pressure
Inventor: WUENNENBERG HANS
IPC: A47J45/07
Filed: 1974-01-23
Abstract: The fastening means for attaching handles to saucepans etc., comprises a flat plate which is attached to the pan and has flaps with rectangular holes which are enclosed by recesses in the handle. In the area of these recesses the handle is also provided with rectangular openings which extend at right angles to the recesses and are designed to hold horseshoe-shaped resilient locking elements under stress. One arm of the locking element is braced against the edge of the holes remote from the pan and the other arm is bracked against the inner wall of the openings facing the pan. The force of the locking elements thus acts in the bearing direction of the handle against the pan, without any intermediate means.
Patent DE-2406429-A1 (DE)
Title: Electromagnet with excitation coil system - has two or more pole pieces in conjunction with movable armature fitted between them
Inventor: MEINKE PETER DR ING
IPC: F16C39/06
Filed: 1974-02-11
Abstract: The armature is made of a magnetisable material and/or conducting loops. Ends of each of the two or more pole pieces are divided in two or more separate surfaces (7, 8), with one or more current carrying conductors placed in gaps (9); these conductors are parts of a control coil system (10), and are supplied from control current sources (11). The magnetic flux generated by the coil current and leaving the pole piece flows in one or several surface parts of the pole piece in a direction opposite to the flux flow in the other surface parts. The magnet as a whole is energised by a generator connected to a coil wound around the bottom portion of the U shaped magnet.
Patent DE-2410052-A1 (DE)
Title: Pressed workpieces storage and transport frame - has supports on all sides on which discs with eccentric holes fit
Inventor: HOFMEISTER WERNER
IPC: B65G1/02
Filed: 1974-03-02
Abstract: The frame accommodates rows of items of different shape, size and numbers. These are enclosed on all sides by tubular or bar-type supports running in the stacking direction, and on the supports are discs with eccentric holes in them. These are rotated in relation to each other to separate the individual parts, and locked in the selected positions. All discs can be of the same size and shape, which can be non-circular, typically elliptical. They can be coated with, or entirely of, elastic material. The holes can be of regular polygonal section, and the supports of complementary section.
Patent DE-2411585-A1 (DE)
Title: Yarn tension monitor unit - with sprung arm together with electrode and electronic circuit to stop the machine
Inventor: DOMIG RENE
IPC: D04B35/14
Filed: 1974-03-11
Abstract: The carrying arm, with its yarn contact surface at the end, is held under spring tension, and an electronic circuit is provided in conjunction with a tribo-electric or piezo-electric electrode to generate the warning or stop signal. This provides a yarn tension monitor unit which is not subject to corrosion, which could affect its accurate working, and which is easily adjusted for current operating conditions.
Patent DE-2414236-A1 (DE)
Title: Radio telephone system with several transmitters - has a circuit transmitting call signal and has a common oscillator
Inventor: MAHNECKE REINER
IPC: H04W88/18
Filed: 1974-03-25
Abstract: The system consists of several transmitters and at least one receiving station monitoring the call signal. Transmitters have a call signal generator, and receivers an evaluation device. The call signal generator delivers the call signal in a binary code, pref. a BCD code, in the form of a series of signals of the same duration and of one of two frequencies, and the evaluating device has two filters tune to the above two frequencies. Individual signal duration is equal to an integral multiple of oscillation periods of both frequencies. The call signal generator has a common oscillator for the two frequencies generation, to which two frequency dividers are connected, whose division ratios correspond to the required frequencies.
Patent DE-2416047-A1 (DE)
Title: Transparent test strips for analysis of solutions - have varying thickness of gel giving visually evaluated test result
Inventor: LUDWIG-CLARIUS WOLFGANG DIPL P
IPC: G01N31/22
Filed: 1974-04-03
Abstract: Transparent test strips for checking the concns. of solns. are coated with a gel contg. a reagent which produces turbidity or colour change in reaction with the matl. in soln., together with stabilising and sensitivity-increasing additives. The thickness of the gel layer varies as function of its position on the strip, so that when the strip is immersed in the soln. under test a varying degree of turbidity or intensity of colour is produced, and maintained by the gel in its original distribution. Used for example, in checking the potassium level of the blood by patients using home-dialysis equipment. The method is simple and produces a result which can be easily interpreted.
Patent DE-2417264-A1 (DE)
Title: Synchronous detector - for monitoring of several phase controlled oscillators synchronised with a control frequency
Inventor: SONNTAG FRITZ DIPL ING
IPC: H04B1/74
Filed: 1974-04-09
Abstract: The synchronous detector consists of an EXCLUSIVE-OR gate with two inputs, one of which is supplied with the control frequency in the form of symmetrical pulses, and the other is supplied through a flip-flop with the resulting output putse of phase discriminators in all oscillators. This resulting pulse is obtained by combining in a NAND gate of the control loop phase discriminator pulses. The flip-flop is synchronised by a pulse generator with the control frequency. The pulse generator consists of three gates. In the output stage four NAND gates are connected in a diamond configuration with a low-pass filter in between the last NAND gate and the output transistor.
Patent DE-2421886-A1 (DE)
Title: Thin-walled rectangular tub for grapes - has horizontal wall reinforcement corrugations decreasing in length and depth downwards
Inventor: REICH HEINZ ING
IPC: B65D1/42
Filed: 1974-05-07
Abstract: The floor of the tub is flat with rounded edges at the joins with the side walls. The side walls are joined to the front and back walls by means of two welded seams running obliquely upwards. The side walls each have three reinforcement corrugations, as well as the front and back walls. The corrugations are roughly triangular in cross-section, and gradually decrease from the widest and deepest point in the middle to the two ends. The length and depth of the corrugations decrease from top to bottom. The top edges of all the walls are horizontal, then are bent downwards vertically and rolled under at the bottom.
Patent DE-2434906-A1 (DE)
Title: Four-pole line conductive choke coil - has one wire winding electrically screened by windings giving specified wave resistance
Inventor: PETERS WALTER ING GRAD
IPC: H01F17/04
Filed: 1974-07-19
Abstract: The four-pole line coupling choke coil is intended for supply of remote carrier frequency line amplifiers, and has a wire winding electrically screened on all sides by one or more suitably-placed other windings of the same winding sense. The distance between the winding is such that the choke coil has a given wave impedance. The line coupling choke coil consist preferably of three wire windings, each having the same number of turns and wound one on the other with the outer and inner windings coupled in parallel. The three windings may be in one or two layers. This arrangement of the line coupling choke coil provides a compact structure.
Patent DE-2437818-A1 (DE)
Title: Screening foil for transposed cable cores - forms channels permitting escape of trapped moisture
Inventor: HOLLAND KARL HEINZ
IPC: H01B11/10
Filed: 1974-08-02
Abstract: The application is particularly to screened multicore cable for high frequency signal transmission. The screening is applied in the form of a metallic tape wound onto the core (2) with a roughly 20% overlap. One edge of the tape is corrugated so that at the overlap small channels (3) are formed through which moisture inside can escape. This form of manufacture dispenses with the need to punch holes into the tape, and also overcomes the problem of blockages due to the deformation during taping when perforations are employed. Typically the tape is 50mm wide and the channels approximately 15mm long.
Patent DE-2437908-A1 (DE)
Title: Easily mass-produced metal drawer carcase for multi-purpose units - includes cross-rails with pegs fitting into tubular metal uprights
Inventor: FAHRENBERGER REINER
IPC: A47B47/03
Filed: 1974-08-07
Abstract: The drawer carcase comprises a frame with upright metal supports of a rectangular tubing which are connected together at the top and bottom by crossmembers (6) with pegs (8) which fit into the open ends of the tubular uprights are mounted on the underneath of rectangular webs (7) which are provided on the band steel rails (6) and extend longitudinally from one edge to the centre of said rails. The rails can thereby be Z-shaped or T-shaped wherein the centre points of the pegs are preferably beneath the centre points of the webs (7). The frame can be covered and reinforced by a worktop panel (11) provided with a fastening strip (12) which can be screwed down to cover the spacer rails (6) by inserting the screws (14) from below.
Patent DE-2440186-A1 (DE)
Title: Fastening device for a multiple step thermostat - is on a container wall of a washing machine or a dishwasher
Inventor: HOLLWECK WALTER
IPC: G01K1/14
Filed: 1974-08-22
Abstract: The thermostat fastener comprises a flange plate (5) on which one or several individual thermostats (6-8) are mounted, and a pot-shaped fastening device (9) combining the thermostats (6-8) into a single, multiple step unit. The flange plate (5) extends beyond the fastening device (9) edge, and has on its periphery toothing (13) corresponding to recesses in a bottom (11) of a bracket plate (4) firmly joined to the container wall (1), so that the flange plate (5) can be inserted into the recesses and locked in them by rotation like a bayonet lock. The bracket plate is of spring steel material so that the locking device is retained by flexible compression.
Patent DE-2441438-A1 (DE)
Title: Position transmitter control loop monitoring device - is tripped by faulty output signal from controlled rectifier stage
Inventor: SCHLEUPEN RICHARD DIPL ING
IPC: G05D3/12
Filed: 1974-08-29
Abstract: The control loop contains a controlled rectifier stage in series with the position transmitter output, an actual value/desired value comparison stage and a servomotor for the position transmitter. A second actual value/desired value comparison stage is in series with the rectifier stage and the position transmitter and a testing device is connected to the rectifier stage output. The testing device is pref. switched out during a jump change in the desired value. The testing device pref. contains an amplifier stage (52) in series with a low pass filter, whereby the amplifier stage is coupled to the rectifier stage and through a level control stage to a desired value input.
Patent DE-2443631-A1 (DE)
Title: Measuring or control instrument with pulse transmitter disc - designed for machine manufacturing or finishing long webs of material
Inventor: WIEGNER BRUNO
IPC: G01B7/04
Filed: 1974-09-12
Abstract: The pulse transmitter disc (4) has an enclosed outer edge, is made of an inherently stable insulating material and is equipped in the edge area (6) with metal webs (5) which can be scanned without contact electronically or photoelectrically. The pulse transmitter disc can be made of a conventional copper-lined printing carrier plate, from which the copper lining is removed, except for the segments (5) by etching. The copper layer can have strips etched out a distance from one another exclusively in the edge area. The metal segments can be provided with a high-gloss metallic facing.
Patent DE-2446692-A1 (DE)
Title: Keyboard with standard and ancillary keys for VDU - with ancillary key operation generating designator signal to coder
Inventor: BREITHAUPT ROLF ING GRAD
IPC: H03M11/16
Filed: 1974-09-30
Abstract: The keyboard for incorporation in a visual display unit has two separate sets of keys, one being standard keys e.g. alphanumeric characters and numbers and the other being auxiliary keys e.g. control functions such as moving a cursor across the screen. Depression of any standard key leads to generation of a signal, which is transferred to a coding circuit. When one of the keys of the auxiliary set is depressed, a designator signal generator emits a designation signal which is added to the output signal of the coder encoding the key signal from the standard set. Each set of keys may be connected to its own coder and their output signals may be switched with that of the designator signal generator through a parallel series converter to a joint output line.
Patent DE-2449459-A1 (DE)
Title: Mine heading machine loading-out system - has two conveyors which diverge to walls in tooling area
Inventor: STAYMANN WILHELM
IPC: E21D9/12
Filed: 1974-10-19
Abstract: Mine heading machine loading-out conveyor arrangement for spoil removal from the face is made up of two conveyors which run alongside one another close to the axis of the machine. The conveyor are reversed in the horizontal plane close to the tooling and lead out towards the roadway or gallery walls and are adjustable here in length to suit the width of the roadway. In the tooling area, the conveyors should be carried in a trough (3) which is hinged to the end of the machine and can be adapted to suit the width of the roadway. The conveyors directed towards the walls should be adjusted to suit the operating radius of the tooling and should be designed as continuous centre chain scrapers.
Patent DE-2453469-A1 (DE)
Title: High performance evaporating fuel oil burner - has evaporator chamber and valves actuated by pressure in supply line
Inventor: LURZ ANTON
IPC: F23N5/04
Filed: 1974-11-12
Abstract: The burner has a circular evaporator chamber connected to the fuel supply pipe and to evaporated fuel nozzle, and the combustion process is adjusted over a wide performance range without generation of soot. The luminous flame ensures combustion without carbon monoxide in waste gases. An oil atomising nozzle is arranged adjacent to the vapour nozzles whose outlet jet is directed through the ring chamber and it is connected to a second branch of the oil supply pipe provided with a second blocking valve. The two blocking valves are actuated by the oil pressure in the fuel supply line so that both valves are closed below a certain pressure. When this pressure is exceeded then the first valve is opened and the second valve opens when the pressure exceeds a second higher pressure value. Should the pressure exceed another third threshold value then the third valve is closed.
Patent DE-2453999-A1 (DE)
Title: Band surround ring production method - has tensioning and cut off devices and a welding device with movable band clamping
Inventor: EHM KARL H DIPL ING
IPC: B65B13/32
Filed: 1974-11-14
Abstract: The production method is for a welded band encircling device and includes a tensioning and a cut-off device where the ends of the band are connected to each other by welding. A number of welding points are produced by a welding device which has a movable position opposite to a pressure ledge and there is a movable band clamping device connected to a cut-off device. The welding device moves independently from the band clamping device, but both devices may be moved together. The pressure ledge and the band clamping device are fitted with a profiled band clamping zone, and in the case of multiple welding of a band surround the welding points may be offset in relation to the band centre line.
Patent DE-2454462-A1 (DE)
Title: Optical indicator with liq crystal - having dual purpose composite backing film which is both transmitting and interference film
Inventor: HILLMANN EWALD DIPL PHYS
IPC: G02F1/1343
Filed: 1974-11-16
Abstract: Optical indicating device has liq. crystal enclosed between two coated sheets of glass. The rear glass is so arranged that it has a partially transmitting, partially reflecting electronically insulating multiple interference film. This also contains a conducting film, rear conducting film forming part of the composite interference film. The rear conducting film can be of SuO2 impregnated with antimony oxide. The device is used to give usual indication of letters, numerals etc.
Patent DE-2454503-A1 (DE)
Title: Sampling device for flotation run offs - consisting of flow barrier with central passage and circumferential slot for sample
Inventor: RATHNOW ERICH
IPC: G01N1/20
Filed: 1974-11-16
Abstract: Sampler for use with a liquid medium flowing in a channel is operated periodically by filling and discharging. It consists of a rotatable container pivoted on an axis so that it can be inserted or withdrawn from the liq. and having a central through passage of smaller dia. than the channel. Around this is a circumferential slot through which the sample passes and fills the container, which is subsequently emptied by tipping it up. The whole is contained in a 'T' shaped unit mounted between two flanges in the channel. Used esp. for periodic sampling of the concentrate from a flotation process, required to check the process operation. As this contains a significant solids contact, it is essential to have a representative sample, which skimming some from the surface or drawing some from a sample point on the base of the channel does not give. The device mixes the stream and draws off a truly representative sample. As it is only inserted when required, blocking is not a problem.
Patent DE-2500413-A1 (DE)
Title: AC two-wire proximity switch - has magnetically, capacitively or optically controlled oscillator
Inventor: AKIYAMA TADASHI
IPC: H03K17/945
Filed: 1975-01-07
Abstract: An electronic switch is controlled by an oscillator and connected to the two wire line terminals for connection in series to a load and the voltage source, and a rectifier supplied from the above terminals for the sensor circuit supply. A control circuit supplying with current the sensor circuit with the oscillator only during the rising parts of the half wave voltage delivered by the rectifier, is inserted between the latter and the sensor circuits. The control circuit contains an emitter follower transistor whose collector emitter path is inserted between the rectifier and the sensor circuit current supply terminals. A diode in forward direction is in series with a thyristor serving as an electronic switch, and is connected to the rectifier, with the switching transistor collector connected to the junction point between diode and thyristor.
Patent DE-2500911-A1 (DE)
Title: Three-phase squirrel cage motor - for textile machine drive, has smooth starting device
Inventor: METZLER HANS-GEORG ING GRAD
IPC: H02P1/28
Filed: 1975-01-11
Abstract: A thyristor control element is provided in at least one phase connection by which motor voltage is automatically raised from a specified value to the maximum commands for thyristor ignition depend on quality between the variable voltage of a starting picking up and a saw-tooth voltage derive from a zero crossing of the voltage to be controlled. An additional voltage is applied to the comparator detecting the above voltage equality, it compensates the delay time between voltage zero crossing and start of the saw-tooth voltage.
Patent DE-2503020-A1 (DE)
Title: Compressor or motor with meshing rotary pistons - has housing cut from length of extruded profile, and end covers
IPC: F01C1/12
Filed: 1975-01-25
Abstract: The mechanism has a housing with two rotary pistons coupled by gearing, each piston provided with one or more radial projections and grooves, corresponding with grooves and projections on the other piston. The housing consists of a profile and is produced by cutting an appropriate length off a pressed profile, particularly formed by extrusion. The pistons may also consist of extrusion-pressed profiles. The profiles may be in light metal or a light metal alloy. The housing may be provided with axial ducts of which only those in the longitudinal central plane are connected with the interior of the housing.