baber/WOPTO huggingface dataset:
Patent DE-2657429-A1 (DE)
Title: Rapid analysis technique for bore samples - suitable for high conductivity ore and uses phase displacement to assay ore composition
Inventor: WOEBKING HANS DR
IPC: G01N27/22
Filed: 1976-12-17
Abstract: The rapid analysis procedure is suitable for ore samples of high conductivity obtained during prospecting. Such ores are, for example, copper or iron pyrites or lead blend, and a sample is put into a measuring cell (M) which operates in conjunction with a reference cell. The electric circuit used comprises a generator (G) which transmits a current with a variable frequency in the range 10 Hz to 100 Hz. An electrode in the cell remote from the generator is connected to an earth shunt resistor (Ra) and through an amplifier (V) to a phase angle detector (PH) which controls a chart recorder (SCH).
Patent DE-2704237-A1 (DE)
Title: Dowel for fixing into holes drilled in concrete - has hard setting cement injected between dowel and hole surface
Inventor: FISCHER ARTUR DR
IPC: F16B13/14
Filed: 1977-02-02
Abstract: In order to fix objects to the surface of the concrete (1) a hole (2) is drilled with a shallow recess around the mouth of the hollow. A dowel (4) with circumferential ribs (3) is inserted in the hole (2) and is held in a central position by the flange (5) which fits in the recess. A hard setting cement is then injected through a hole (7) in the flange (5). The cement completely fills the space between dowel (4) and hole (2) and when it has set retains the dowel (4). The dowel (4) is provided with a number of equally spaced longitudinal ribs (10) which are deformed by the thread of the fixing screw and hold it in place.
Patent DE-2706363-A1 (DE)
Title: Exhaust gas purification system - in which air is fed to cylinder at end of induction stroke
Inventor: OONO EISHI
IPC: F02B75/02
Filed: 1977-02-15
Abstract: A bore (9) is made between the exhaust pipe (10) and each cylinder. The bore terminates as an opening (7) in the cylinder wall which is uncovered by the top piston ring as the piston approaches bdc. Air is then blown into the cylinder by an air pump after the inlet valve (13) has opened. The air remains in the gap (6) between top piston ring and cylinder wall for the whole of the compression stroke to exclude hydro carbon gas formations. After ignition, the spreading flame front continues to keep the air compressed in the gap (6). The purpose is to prevent the combustion gases from touching the cylinder walls and forming a hydro carbon layer of unburnt gases.
Patent DE-2708800-A1 (DE)
Title: Hollow plastic blind frame insertable in old frame - has protrusion and lug on undercut grooved flange for clipping in place
Inventor: BUDICH WOLFGANG
IPC: E06B1/34
Filed: 1977-03-01
Abstract: In renovation work, the blind frame, made from hollow plastic profiles, is for building into a wall opening with an old blind frame anchored in it. Stem pieces divide the frame profile into central, outer and inner compartments, with outside and inside protrusion and/or grooves as attachment units, and a flange providing a fixture point. The flange (21) has a groove undercut on both sides, with its opening facing away from the old frame. The undercut sections serve for clipping the inside cover profile (4) in position and are in the form of a protrusion (22) and a clipping lug (23). The flange may incorporate a channel in the groove area, indicating the position for the fixing screw.
Patent DE-2719937-A1 (DE)
Title: Optically coupled signal transmission - has antenna received signal transmitted over optically isolated coupling
Inventor: FOHRINGER LOTHAR
IPC: G08C23/04
Filed: 1977-05-04
Abstract: An optically coupled signal measuring system for antenna received signals is based on a modulating process. The antenna signal is amplified (11) and processed by a transmitter (13) with two filter stages (15, 16) with demodulators (17, 18) coupled to A/D converters (19, 20). A temp. signal from the antema amplifier is also converted (23) and the signals multiplexed (24) through a modular (25). An LED (26) transmits to a photodiode (30) coupled to amplifier (31), demultiplexer (32), D/A converters (34-36) and signal displays (37-39).
Patent DE-2724592-A1 (DE)
Title: Load balancing of drive consisting of two groups - uses balancing motors, coupled through planetary gears to superposition units and is esp. for mining machines
Inventor: WILDFOERSTER HEINRICH ING GRAD
IPC: H02P5/753
Filed: 1977-06-01
Abstract: Each driving group has an asynchronous electric motor coupled to an output shaft through a hydrostatic displacement system. The shaft together with shafts of other driving groups, possibly rotating at different speeds, drive a mining machine. Locad differences at the output shafts are balanced out by hydraulic coupling between individual hydrostatic displacement systems. Each driving group (1, 2) has balancing motors (6) coupled through planetary gears (4) with superposition units (5). The motors (6) are asynchronous motors with soft working characteristics.
Patent DE-2729947-A1 (DE)
Title: Pen and pencil with cap carrying tip - has sliding tip section with outlet hole for writing tip and cap
Inventor: FIUKOWSKI EBERHARD DIPL PHYS D
IPC: B43K5/17
Filed: 1977-06-30
Abstract: The pen or pencil has a cap covering the tip and coupled by a mechanism to an actuator on the pen etc. This slides the cap lengthwise and transversely and/or swings it on an axis parallel to that of the pen or at right angles to it. At the forward end there is a tip section with an outlet hole both for the writing tip and the cap, and sliding in the lengthwise direction. At the rear, this tip section can be accommodated below the pen wall. In the closed position, the outlet hole can be sealed off by the cap wall, and the tip section and actuator can be coupled direct together and can be in one piece.
Patent DE-2731743-A1 (DE)
Title: Electrolytic prodn. of 1-Amino-4-alkoxy-naphthalene derivs. - from nitro-naphthalene in acidic alcohol soln., used as dye intermediates
Inventor: PUETTER HERMANN DIPL CHEM DR
IPC: C25B3/25
Filed: 1977-07-14
Abstract: Prodn. of 1-amino-4-alkoxynaphthalenes (I) comprises electrolytic redn. of a 4-unsubstd.-1-nitronapthalene (II) at up to 100 degrees C in presence of an aliphatic alcohol and of H2SO4, methoxysulphuric acid or methanesulphonic acid of >=50% concn. Esp. the electrolyte comprises (wt.%) 0.5-15% (II); 5-35% of >=70 wt.% H2SO4; 50-94.5% alcohol (esp. (m)ethanol or propanol) and 0-30% of a non-aqs. solvent. Results in high yields with reduced by-prod. formation and energy consumption. (I) are prepd. in a single step c.f. 3-step prodn. from alpha-naphthol.
Patent DE-2732973-A1 (DE)
Inventor: SCHAUSBERGER HELMUT
IPC: G03D3/13
Filed: 1977-07-21
Abstract: In a pair of rolls of the device, the axis (3) of one roll of the pair runs in bearings (4) in a fixed arrangement, and the axis (7) of the other roll runs in bearings (8) which are arranged to be movable in the direction perpendicular to the axis of the first roll. In order to obtain higher durability, in particular of the springs, and to improve the ease of maintenance, a leaf spring (11) is provided in the device, which spring urges the movable bearing (8) into the desired direction, prevents an axial movement of the movable bearing (8) and provides, by pretension, support for a bearing holder (9) for the movable bearing (8) in the inserted state. <IMAGE>
Patent DE-2734223-A1 (DE)
Title: Digitally controlled analogue angle setting device - has coding disc with number of grid strips smaller than number of stepping motor steps per revolution
Inventor: WERNICKE JOACHIM DR ING
IPC: G05B19/40
Filed: 1977-07-29
Abstract: The device sets a mechanical output shaft in an analogue angular position which can vary at most from 0 to 360 deg., otherwise within a limited arc. This is done by an electric digital input data word. An optical incremental coding disc (3) with a zero mark is rigidly connected coaxially with the rotor (1) of a stepping motor (2). The number of grid strips on the grid track of the coding disc is smaller than the number of steps of the motor per revolution. The n-stepped field cycle of the stepping motor may include the same setting angle interval as a line pair (bright/dark) on the disc.
Patent DE-2734592-A1 (DE)
Title: Removing leaves from lower stems of vines - using power driven circular brush mounted on arm which is spring loaded to engage vine
Inventor: BRAUN STEFAN
IPC: A01G17/00
Filed: 1977-08-01
Abstract: A support mounted on a vehicle carries two arms (3, 7) one of which is fixed. Arm (7) is movable in the horizontal plane about a vertical axis at the free end of arm (3). A leaf remover is removably fixed to the free end of arm (7). An hydraulic motor (11) at the end of arm (7) drives a circular brush comprising a support (13) with a helicoid pattern of tufts of hair. A spring (5) acting between arms (3, 7) urges the brush into contact with the stems of the vines. In alternative constructions, two brushes rotate about vertically spaced horizontal axes, or these brushes are replaced by a continuous band with tufts of hair which is driven about the same axes.
Patent DE-2737113-A1 (DE)
Title: Single bath dyeing of cellulosic textiles with ice colours - using alkaline bath contg. coupling component; with subsequent addn. of diazonium salt
Inventor: HERTEL HASSO DIPL CHEM DR
IPC: D06P3/68
Filed: 1977-08-17
Abstract: A method for single bath dyeing of cellulosic textiles with ice colours, without an intermediate rinsing stage between the impregnation and development, comprises treating the material with an aq. bath contg. coupling component and an alkali, and, adding to the bath after the ptake of the coupling component onto the fibre, a soln. of a diazonium salt and opt. a quantity of alkali fixing agents to give a pH of 9-12. No excess unabsorbed coupling component needs to be eliminated. The dyeing time is considerably reduced, and the pH range used allows the alkali salt and free acid forms of the coupling component to mixt. close to equilibrium which gives perfectly even dyeing of high intensity and good fastness, partic. to rubbing and washing. The alkali fixing agent is pref added to the bath before the diazo soln. Pref. the pH range created is 9.5-10.5.
Patent DE-2739246-A1 (DE)
Title: Wires with balloon insulation of polyester or fluorocarbon! - giving low dielectric constant and good stability
Inventor: OESTREICH ULRICH DIPL ING
IPC: H01B3/44
Filed: 1977-08-31
Abstract: Wires insulated with air spaces consist of a conductor with an insulating sheath with a greater inside dia. than the dia. of the conductor, the sheath having constrictions at intervals to keep the conductor in the middle. The improvement is that the sheath consists of polyester or fluorocarbon. Pref. the sheath consists of ethylene-monochlorotrifluoroethylene or ethylene-trifluoroethylene. The conductor pref. has a coating preventing adhesion to the sheath. The insulation has a low dielectric constant and is stable enough for all types of sealing procedure and for relatively high temps. during use, problems associated with thermal expansion being eliminated.
Patent DE-2739351-A1 (DE)
Title: MIG and MAG electric welding machine - where sensor switches off power and consumable wire feeder if wire becomes tangled
Inventor: DOBRANIS AUREL DIPL ING DR ING
IPC: B23K9/133
Filed: 1977-09-01
Abstract: The machine has a pair of driven rolls forming a feeder for consumable welding wire driven through a nozzle located via an insulating bush in the earthed wall of the machine casing. The welding voltage is fed to the wire via the nozzle. A sensor is located near the nozzle, and is connected in an electric circuit emitting a control signal switching off the feeder, and the welding voltage, if the welding wire deviates from its correct path. The sensor is pref. connected to a relay and a switch, and may be either an electrically conducting bush or a photocell. If the welding wire becomes tangled between the feeder and nozzle, both the feeder and power supply are switched off.
Patent DE-2745171-A1 (DE)
Title: Door or window plastics insulated aluminium frame - has interlocking wedge insulation pieces across gap between frame pieces
IPC: E06B3/263
Filed: 1977-10-07
Abstract: In the composite profile frame for a window or door, esp. made of light metal, there is a connecting plastic insulation unit hooked and wedged between frame pieces with interfacing undercut guide grooves. The insulation unit (3) is made up from two wedge pieces (31), both spanning the space (4) between the two frame pieces (1). The wedges faces (32) are pushed together with a self-locking effect, and supported against both frame pieces and locked in place with them pref. with lugs (13), preventing them from moving apart. Insulation construction is compact, and residual empty space can be foamed out.
Patent DE-2747918-A1 (DE)
Title: Three=dimensional imaging system - uses superimposed perspective images and several light sources for illuminating object
Inventor: WEISS HERMANN DIPL PHYS DR
IPC: G03B35/00
Filed: 1977-10-26
Abstract: The 3-d imaging system has an object illuminated by a number of light sources, e.g. arranged symmetrically. Individual images of the object with differing perspective are recorded at spaced points in the plane of a recording surface, via an orthogonally adjustable shutter mechanism. These individual images overlap one another, so that a multi-layer image of the object is obtained. Alternatively, adjacent parts of the object may be recorded as separate perspective images on a number of recording supports, with these images superimposed by tomosynthesis, to obtain a single multi-layer image.
Patent DE-2758862-A1 (DE)
Title: Cam follower for IC engine valve mechanism - has rectangular head with rotation prevented by screw received in stem slot
Inventor: KOERNER WOLF-DIETRICH DIPL ING
IPC: F01L1/14
Filed: 1977-12-30
Abstract: The cam follower for operating IC engine valves has a cylindrical shaft (5) free to slide in a guide. Its head (6) is rectangular, with longer side length equal to the dia. of an equivalent circular head, and the shorter side length slightly exceeding cam nose (4) width. Rotation is prevented by a set bolt (8) in an axial groove (9) in the shaft. Alternatively, the contact face (7) is sloped upwards in the direction of rotation or an axial locking strip with tabs projecting between adjacent followers may be fitted.
Patent DE-2802546-A1 (DE)
Title: Whirling disc oil burner tube - has covering of mineral wool on disc with outer layer of refined steel foil
Inventor: SCHMITZ GEORG
IPC: F23D11/40
Filed: 1978-01-20
Abstract: The oil burner has a tube for feeding combustion air and a whirling disc in the tube mouth crossways to the flow of air. The disc has a central hole through which a burner nozzle, fitted coaxial in the tube, blows. The whirling disc (2) has a covering of mineral wool with heat conductivity on its upstream side and over this is an outer covering layer (12) of refined steel foil. The disc itself is curved into a conical shape and the mineral wool and refined steel combination obviates the deposit of soot on it.
Patent DE-2804059-A1 (DE)
Title: Static converter module for cabinet or rack - has disc-shaped thyristors in heat-sink between current rails
Inventor: HAHN KURT
IPC: H02M7/00
Filed: 1978-01-28
Abstract: The static converter module, for cabinets or racks, has horizontal insulating rails (3, 3', 3", 3'") supporting current rails (7, 7'). The heat-sink blocks (1, 2) holding the disc-shaped thyristors are located between the rails and have their cooling fins running vertically. The fuses are located below the rail/thyristor assembly.
Patent DE-2808579-A1 (DE)
Title: Time-multiplexed switching matrix - has two additional stores associated with two sub-stores assigned to each line and receiving either even or odd time slot signals
Inventor: GAWER DIETER DIPL ING
IPC: H04L12/52
Filed: 1978-02-28
Abstract: The TDM switching matrix for digital signals includes a store assigned to each incoming line. Each store is split into two sub-stores. In order to distribute the sub-store loading evenly an auxiliary store is assigned to each sub-store. During a write operation, signals occuring in odd numbered time slots are stored in one of the sub-stores and signals in even numbered time slots are stored in the corresponding auxiliary store. During this same write operation signals are read out of the other sub-store of the pair and is auxiliary store.
Patent DE-2813615-A1 (DE)
Title: Multi piston hydraulic press - uses filling valve fitted inside hollow press piston to reduce amount of circulated fluid
Inventor: CELADA FRANCESCO
IPC: B30B1/32
Filed: 1978-03-30
Abstract: Each cylinder/piston assembly consists of cylinder (23) in which is a hollow piston (21). The hollow part of the piston acts as reservoir (22) communicating with the space between cylinder and piston by filling valve (6). The cylinder is also provided with the pressure inlet connection (28). During the operation of the pressing plate, the fluid contained in each reservoir (22) flows through valve (6) into chamber (24). When filling chamber (24) is completed, the pressurising of each cylinder for pressing purposes is effected by admitting fluid through connection (28).
Patent DE-2831502-A1 (DE)
Title: Cash and currency storage system - has small amounts of money kept in storage compartments unlocked after interval determined by clock
Inventor: HIRSCHSON RICHARD
IPC: E05G1/08
Filed: 1978-07-15
Abstract: The cash and currency storage system has its larger drawers subjected to a longer blocking time controlled by a clock fitted to a common assembly plate and by a snap lock. Before the operator can unlock it, he must first wind up the clock by turning its shaft until the desired blocking time is reached. A control and blocking mechanism turned by the shaft has a disc margin with only one release point opposite a block on the lock and in line with the block and the shaft. It is possible to open the lock bolt only after the set time has elapsed.
Patent DE-2837962-A1 (DE)
Title: Tooth-brush for effective cleaning of dental crevices - has brush head set t=shaped w.r.t. handle, and is held in approximately vertical position during use
Inventor: CAPITAIN JAKOB
IPC: A46B9/04
Filed: 1978-08-31
Abstract: The toothbrush has a brush head set on the handle to form a T-shape thereby improving the cleaning action of the brush, particularly when cleaning the interpaces between the teeth. The actual shape of the brush head can be varied, i.e. square, oval or round, but adapts to the contour of the mouth. The brush is no longer held horizontal, but vertical. The bristles are arranged in a rectangular array.
Patent DE-2838724-A1 (DE)
Title: Cpds. of transition metals with tetra:thio-quadratic acid - useful as electrically conductive materials
Inventor: BECK WOLFGANG PROF DR
IPC: C30B29/46
Filed: 1978-09-06
Abstract: Simple and complex cpds. of transition metals with the tetrathioquadratic acid dianion of formula (I) are claimed. The cpds. are useful as electrically conductive materials with anisotropic conductivity. Described cpds. include those of formula M2(C4S4)nXm (where M = transition metal, X = Cl, Br or I; n = 1 or 3; m = 0-2), M(C4S4)n/2Xm (where n = 2 or 4), LnM(C4S4)MLn (where n = 1-4 and L is a ligand), LnM(C4S4)MLn 2+2A- (where n = 1-4 and A- is an anion), and LnM(C4S4)MLn 2-2Q+ (where n = 1-4 and Q+ is a cation). The cpds. can be prepd. by reacting a tetrathioquadratic acid salt (pref. C4S4K2, H2O) with a transition metal halide or complex halide.
Patent DE-2842170-A1 (DE)
Title: Lock for cupboard sliding door - has inner cylinder for key, designed for addition of spacers to vary overall length
Inventor: STOMMEL PAUL
IPC: E05B65/08
Filed: 1978-09-28
Abstract: The lock has a outer cylinder (1) connected to a swinging locking arm (5) and an inner cylinder (2) in which a key is inserted. The inner cylinder includes a square section part (3) for a connecting piece (4) which has a circular body inside the outer cylinder, and a smaller diameter extension (6) which passes through the locking arm. Further on, the extension includes an end part (7) which is housed inside a head (8) incorporated in the lock, and able to rotate inside it. Spacers can be fitted on the inner cylinder to extend to an overall length of the lock to suit different depths (X) at which the locking arm may be fitted.
Patent DE-2842174-A1 (DE)
Title: Hydraulic press safety circuit - has two=way control valves coupled with mechanically operated distributing valves
Inventor: FANTA GUENTER
IPC: B30B15/28
Filed: 1978-09-28
Abstract: The two-way valves acting as outlet valves for the cylinder space of power cylinder are coupled with two-way valves and having two switching positions. The closing components are connected with the corresponding piston of the valves. The two-way valves are integrated with the three-way valves provided with two switching positions. The two-way valves act as inlet valves for the cylinder space of the power cylinder and closing components are connected with the corresponding control piston of the distributing valves.
Patent DE-2847276-A1 (DE)
Title: Solar heat collector - with inner flanges on casing carrying transparent cover plate
Inventor: MEIKE KLAUS
IPC: F24S10/50
Filed: 1978-10-31
Abstract: Solar heat collector has a casing with a bottom and four side wall with flanges bent over towards the inside. The transparent cover plate rests on these flanges and is sealed against the casing by an elastic sealing material. Such a collector casing requires no top frame so that its weight is less and it costs less. The radiation sensor is now readily accessible. Pref. the base, the sidewalls and the flanges of the housing are made out of a single sheet metal member.
Patent DE-2847469-A1 (DE)
Title: Optical suppression of gaps during microfiche reader operation - uses variable intensity filter to even out screen illumination between microfiches or their parts
Inventor: PROSKE JOACHIM DIPL PHYS
IPC: G03B23/00
Filed: 1978-11-02
Abstract: The microfiche reader has a special filter which is pushed into the optical axis between slide changes to provide a screen illumination representing the mean intensity of the slides. This allows easy viewing without the eye having to adapt to either dark or bright spaces between slide insulation. The filter is either a special density type pushed into the optical axis between slides, or more simply a liquid crystal chip permanently mounted in the projection axis, which has its transmission coefficient altered by a control circuit operating between slide insertion.
Patent DE-2854478-A1 (DE)
Title: IC engine with two rows of offset in-line cylinders - has longitudinally offset valves having centre lines parallel to cylinder centres
Inventor: KRUEGER HERMANN DR
IPC: F02B75/22
Filed: 1978-12-16
Abstract: The combustion engine has two rows of in-line cylinders in which the cylinders of one row are longitudinally staggered relative to those of the other row. The inlet and exhaust valves of each cylinder are also staggered in longitudinal direction and all valves are operated by a common camshaft via rockers. The centre lines of the valves are at least approximately parallel to the centre lines of the corresponding cylinders. The diameter of the valve springs is preferably smaller at the camshaft end than at the rocker lever end.
Patent DE-2856293-A1 (DE)
Title: Drawing and spinning rollers - provided with masses to cancel out centrifugal forces
Inventor: OTTO HORST
IPC: D01H5/22
Filed: 1978-12-27
Abstract: In equipment to draw off and spin yarn, using two counter-rotating rollers, forces on the two rollers are directed towards common axis running through gap between them. Design reduces effects of any centrifugal forces generated in operation. There is a compensating mass for each roller, exerting a force on them round their common axis to cancell out any centrifugal force at each roller, each roller being mounted to a frame with limited movement which also carries the compensating mass. A supporting roller for each roller is located on a common axial plane, each acting with its compensating mass, so that the mass and supporting roller cancels out any centrifugal force on the roller in operation.