baber/WOPTO huggingface dataset:
Patent DE-2515827-A1 (DE)
Title: Extracting and returning of slides - using jaws engaging one side as framed transparency travels past
Inventor: GOERN GEB KOSCIELNY MARIANNE
IPC: G03B23/04
Filed: 1975-04-11
Abstract: The slide extracting and returning method comprises the following steps: moving the arrangement of stacked slides until one to be taken out reaches the transport plane out so that they are not in contact with adjacent transparencies gripping the transparency on its outer sides pulling it out of the transport plane transparency to its initial position. During the outwards and return positioning the transparency can be moved around so that it is stored in the customary manner of upside down and reversed. The transparencies are gripped from one side only for extra protection.
Patent DE-2527487-A1 (DE)
Title: Gas discharge picture-grid operation - impulses with amplitude below burn-out potential are supplied continuously to grid
Inventor: LANZA CONRAD
IPC: G09G3/288
Filed: 1975-06-20
Abstract: Level holding impulses with amplitudes below the burn out potential are continuously supplied onto the grid so that after supplying the ignition impulses to the gas discharge path in sequence a periodic transformation takes place and that particular injection condition is held till put-out by the extinguish signals. The pulse frequency of the level holding alternating impulses is higher than 40 KHz. set by impulse raising times of not more than 1.8 u sec. Impulses frequency at increment times of 1.8 to 2.2 u secs. are set between 40-80 KHz and with pulse frequencies of 80 KHz increment times of 2 u sec. are chosen.
Patent DE-2531209-A1 (DE)
Title: Compact monophase medium level voltage coupling - has one or more pins and is fitted with separate earth connector and has insulating body with support plate
Inventor: FREITAG BERNHARD
IPC: H01R13/648
Filed: 1975-07-12
Abstract: The single phase coupling device is used for medium level voltages and it is designed to be compact and to accommodate earthing arrangements. The unit has a body (1a) which is made of some insulating material, with a support plate on which are arranged the one or more electrical contacting elements (2), each of which is mounted in a slot in the body section, interconnected by a cross member (4a) which is accessible from the exterior via an isolated tube (5a) integral with the body. There is an earth connection (9) with is symmetrically positioned with respect to this facing the same way as the other connection elements. The support plate also carries a rotatable cap serving to ensure connection from cable to earth.
Patent DE-2536116-A1 (DE)
Title: Split taper sleeve roller bearing mounting - has slot and spiral end face for snap insertion and twist locking
Inventor: HOFMANN HEINRICH
IPC: F16C35/073
Filed: 1975-08-13
Abstract: The split taper sleeve is used for mounting roller bearings on a shaft, for example, in a self-aligning roller bearing. The split sleeve halves (3) are frictionally connected. The two sections are identical and are snap fitted inside the symmetrical taper-surfaced inner race (4). The sleeve sections have a slot in their axial direction to facilitate the snap-fit. The two sections are rotated so that their gently-spirally end faces are interlocked, and so that they take up the minimum possible distance axially. Two rings (5) hold the self-aligning roller bearing on the shaft (1). Lubricant is applied through a bore (7), and sealing caps (9) with V-sealing rings (8) are also fastened to both ends.
Patent DE-2536983-A1 (DE)
Title: Driving mirror for extended viewing angle - is fitted at corner of dashboard to cover angle between interior and exterior mirrors
Inventor: HOFFMANN PETER
IPC: B60R1/00
Filed: 1975-08-20
Abstract: A third driving mirror (8) is mounted at the outside edge of the dashboard (7) to enable the driver to view out of the side window. This mirror covers the dead spots of the interior mirror (5) and the outside driving mirror (6). It can be reached by the driver for easy adjustment. This mirror is not obscured by rain or snow. Its shape is designed to give maximum view through the side windows, while its viewing angle is large due to the proximity to the driver. The extra mirror extends the driver's view without using convex mirrors.
Patent DE-2545533-A1 (DE)
Title: Keyboard switching circuit for electronic computers - has matrix with diodes at crosspoints, operated by pulses when keys are actuated
Inventor: MASUDA NOBORU
IPC: H03M11/20
Filed: 1975-10-10
Abstract: A keyboard switching circuit for computers, has a matrix with each row and column individually connected to a line terminal. The switching matrix has a number of diodes, each in series with a reluctance component. Each series circuit is between a certain row and a certain column, and allocated to a certain key. The polarities of the diodes are arranged so that they conduct from the rows to the columns, or vice-versa, and the flux of the reluctance element changes when a corresponding key is operated, so that its impedance also changes. A first circuit consecutively applies pulses to terminals (Y, X), connected to the rows or columns, and a second circuit responds to pulses appearing at the rows or columns not connected to the first circuit. When a certain key is operated, the second circuit delivers a corresponding keying signal.
Patent DE-2546450-A1 (DE)
Title: Plate-type heat exchanger with multiple flat channels - circulation channels made by compression of constructional components which house fluid tight seals
Inventor: DISLER FRANZ
IPC: F28F21/06
Filed: 1975-10-16
Abstract: A plate type heat exchanger device with several flat channels formed by parallel plates with sealed off distance pieces through which cooling and heating fluid circulate, has a meander type folded strip of a fluid impermeable heat exchange material and fluid transmitting sealing pipes having at least one in and outlet opening which are inset into the compartments between each pair of neighbouring band layers. A tensioning device is used to produce fluid tight seals between the layers and sealing pipes and to produce the flat fluid channels.
Patent DE-2546907-A1 (DE)
Title: Mobile universal building workers tool base - comprising grooved tubular supports and sliding carrier rod on roller mounted wagon
Inventor: ZERFASS HEINZ
IPC: E04F21/18
Filed: 1975-10-20
Abstract: The appliance, for use in the building or demolition industries reduce the strain of heavy work for individuals. It is based on a wagon, travelling on swivelling rollers. This carries upright or slopping detachable tubular supports (3), with one or more lengthways grooves (4), and a lengthways movable and lockable (6) carrier rod (7), with a pronged head (8). A foot lever (10), engaging below the carrier rod is hinged to the wagon by a pair of swivelling fishplates (9). The rollers may be mounted at the ends of two unevenly intersecting hollow rods (13, 14).
Patent DE-2549258-A1 (DE)
Title: Fuel level continuous indication for vehicles - using high temp. coefficient rod shaped resistor and external series indicator
Inventor: ZADA WAGUIH
IPC: G01F23/24
Filed: 1975-11-04
Abstract: The device is for monitoring the fuel level in a vehicle fuel tank using a resistor with a high temp. coefficient inside the tank and a series indicator device outside the tank is improved to provide a continuous indication. The design also enables reduced mounting cost to be achieved. Conventional arrangements use several thermal resistors positioned at various heights in the tank which illuminate lamps when the fuel falls below their individual heights, thus giving a discontinuous indication. A rod-shaped PTC resistor or "cold conductor" (1) is mounted vertically inside the tank held in a screw mounting (3) by means of which it is inserted in or removed from the floor (4) of the tank. As the fuel (8) level falls the resistor impendance changes and is indicated on a meter (5).
Patent DE-2554285-A1 (DE)
Title: IC engine with reciprocating piston - has rotary valve with apertures cyclically connecting cylinder to exterior
Inventor: STEFFEN HELMUT
IPC: F01L7/02
Filed: 1975-12-03
Abstract: The IC engine with reciprocating piston has a rotary valve controlling a four-stroke cycle. The valve comprises a housing (2) arranged at the top of the engine cylinder (1), and contg. a cylindrical valve (6) extending with its axis perpendicular to that of the cylinder. The housing has a single inlet/exhaust port open to the engine cylinder. Diametrically opposite the inlet/exhaust port the housing has separate inlet and exhaust ports (3, 4). The valve spindle has passages (5) which, connect the cylinder alternatively to the inlet and exhaust ports in accordance with a four-stroke cycle, as the spindle rotates at a corresponding rate.
Patent DE-2554317-A1 (DE)
Title: Prefabricated toilet cubicle for parking areas - has spacious receptacle with permanent chemical supply allowing periodic emptying
Inventor: LUDWIG LOTHAR
IPC: A47K11/03
Filed: 1975-12-03
Abstract: The prefabricated toilet cubicle can be readily erected in road lay-bys or camping sites for immediate use by motorists or campers and includes a spacious receptacle for collecting the excrement which is then automatically broken down by the permanent chemical supply so that there is no danger of smell. The receptacle can be periodically emptied by the sewage collector lorry. The method is especially valuable in the hot summer months when insect pests are an additional health hazard.
Patent DE-2604306-A1 (DE)
Title: Tunnel kiln for baking ceramics - with recycling of exhaust gas to baking zone and periodic reversal of gas flow
Inventor: HAESSLER ANDREAS
IPC: F27B9/10
Filed: 1976-02-05
Abstract: Ceramic prods. are baked in directly-fired tunnel kilns in which the preheating zone is located either before or after the exhaust gas fan. The exhaust gas is returned to, and mixed in, the baking zone, where an oscillating forward and reverse motion of the gas stream is employed, reversal occurring every few seconds, to ensure adequate heat transfer by convection in the entire kiln. The point of re-entry of the exhaust gas is pref. above the ignition temp. of combustible CO and/or CxHy. A reversible gas blower is pref. used for the periodic reversal of gas flow and also for alternating supply of the exhaust gas to the baking zone or to the outer atmos. More than one blower may be used. (The kiln can be used, e.g. for baking bricks). Use of the heat and/or fuel content in the exhaust gas improves thermal efficiency.
Patent DE-2611375-A1 (DE)
Title: PABX telephone network pushbutton dialling circuit - protects multifrequency receiver from interference during dialling and allows extension to receive dial tone
Inventor: KESSLER ARTHUR
IPC: H04Q3/62
Filed: 1976-03-18
Abstract: The pushbutton dialling circuit, for extensions in PABX telephone network coupled to local exchange, protects the multi-frequency receiver from interference during dialling and simultaneously allows the extension to receive the dial tone from the telephone exchange (OVST). After the exchange code has been dialled, the PABX exchange's (NST-ANL) central control (2ST) connects a multi-frequency receiver (MFV-E) and an exchange-line tone generator (425-G) to the extension's (TLN) connection it also connects an exchange-line tone receiver (425-Ee to the local exchange line that the PABX exchange has busied.
Patent DE-2611693-A1 (DE)
Title: Converter system esp. for recovering usable materials from waste - has treatment chamber through which waste is conveyed to undergo thermal decomposition in absence of air
Inventor: KEMP KLAUS M
IPC: C10B53/02
Filed: 1976-03-19
Abstract: A continuous converter system includes a heated treatment chamber through which organic, pseudo-organic (e.g. silicone) and/or inorganic materials, particularly waste materials, are transported on the upper flight of an endless conveyor to undergo thermal decomposition in the absence of air. Conical sumps are spaced along the base of the chamber and communicate via conduits with respective collection containers located externally of the chamber to receive liquid decomposition products. The upper portions of the containers communicate with a manifold connected via a condenser and serial scrubbers with a pump which draws vapors and gases from the chamber at a rate selected to maintain an above-atmospheric pressure in the chamber. Spent material leaving the chamber on the conveyor is collected and cooled in a further container.
Patent DE-2614894-A1 (DE)
Title: Rotary piston engine without reciprocating parts - using dumbbell pistons centrally pivoted, orbiting in cylindrical rotor periphery
Inventor: EHLERT HANS L
IPC: F01C1/36
Filed: 1976-04-06
Abstract: The rotary piston engine without any reciprocating parts has a cylindrical rotor (R) centrally mounted in a casing so shaped that the rotor divides it into two identical working chambers (AK). Circular-plan scallops in the rotor periphery, pref two in number, each accommodate adumbbell-shaped piston (K) on a central spindle parallel to the main shaft. a (conventional) timing gear keeps these in step and causes them to rotate at twice rotor speed. The piston-casing relationship is such that there is always line contact between them in at least one place. Spark plugs are fitted when the casing touches (GE) the rotor; displace by 45 deg. on either side of these are inlet/exhaust ports. Several units can be combined co-axially; pref two timed 180 deg. apart.
Patent DE-2616503-A1 (DE)
Title: Control device for received luminous energy - is esp. for stroboscopic flashlight unit
Inventor: OKUNO KENO
IPC: G03B15/05
Filed: 1976-04-14
Abstract: The control device has a light reception element which extinguishes the flashlamp when luminous energy arriving at the reception element from the object reaches a certain value. It includes an electrooptical component with a variable transparency, so that the luminous energy falling on the reception element (5) can be controlled by changing the component (8) transparency. There is also a device applying control voltage to the electrooptical component (8) whose value is determined by the set values (by Rf, Ra) of illumination factors determined by film illumination conditions.
Patent DE-2618902-A1 (DE)
Title: Liquid crystal display module - has optical storage reflector layer with long afterglow at rear of module
Inventor: DUNMANN JUERGEN DIPL ING
IPC: G02F1/13
Filed: 1976-04-29
Abstract: A liquid crystal display module consists of two substrate carriers with transparent conductive coatings which enclose a liquid crystal between them. A light storage layer at the rear of the module consists of a phosphor with a long afterglow between the polarisation filter and the metal bronze or glass reflector. This results in a clear display of figures, letters or symbols without double images caused by parallax, even in complete darkness, without requiring another source of light. The volume is merely increased by one optical storage layer and the module is suitable for series prodn.
Patent DE-2625595-A1 (DE)
Title: Single phase brushless motor fed from DC source - with induced voltage in windings used as feedback dependent on speed
Inventor: MUELLER ROLF DIPL ING DR
IPC: H02P6/14
Filed: 1976-06-08
Abstract: In the motor, with a permanent magnet rotor, the windings are alternately switched to a dc source to give in effect a single phase supply to the machine. A reluctance motor effect provides torque during the winding commutation period. The voltage induced in the windings by the permanent magnets is picked off and used as a speed feedback. Where npn transistors are used in the commutating circuit the feedback signal performance can be improved by placing a diode (3, 4) in the voltage tappings from the windings (1, 2). The tapping common point (31) is connected (28) through a further diode (15) to the speed sensor and controller. This connection (28) is also joined to the dc positive rail by a diode (14). The effect of the diode voltage drops is to increase the period during which the positive supply voltage is applied to the feedback and thus allow more time for commutation without interfering with the feedback signal.
Patent DE-2630476-A1 (DE)
Title: Beveller for heat and cold resistant plastic pipes - with hard metal blades in grooves in light metal plate
Inventor: MUELLER MANFRED
IPC: B23B5/16
Filed: 1976-07-07
Abstract: Beveller for heat- and cold-resistant plastic pipes for sanitary installations is mfd. for nominal pipe widths of 50, 70 and 10mm., but can also be mfd. for other nominal pipe widths. It allows the pipes, which are cut to length, to be bevelled rapidly and evenly. The beveller comprises a light metal plate in which grooves are cut corresponding to the above widths. The beveller is mounted on a drive machine as an accessory tool. When the machine is running, the pipes are simply introduced into the appropriate grooves to bevel them.
Patent DE-2637543-A1 (DE)
Title: Curing mouldings in situ by direct resistive heating - for moulding rubber or friction (brake lining) materials efficiency
Inventor: KALNINS JOHN ZIGURDS
IPC: B29B13/00
Filed: 1976-08-20
Abstract: Curing moulding compsn. incorporating electrically conductive materials dispersed in a non-conductive resin matrix is described. The material is moulded in a press having conductive upper and lower press tools with the ram moving in a non-conductive body. The tools are used as electrodes for passing an electric current through the moulding material to heat the material by resistive heating. Esp. suitable for moulding friction cpds., e.g. into brake pads or for curing rubber compsns. filled with e.g. smoke black. Heating/curing cycles are reduced by comparison with processes depending on thermal conduction via a resin matrix which is a poor thermal conductor. In an example, process was used to mould and cure a compsn. incorporating 12.1% phenolic resin; 15.6% graphite; 29.5% Fe powder; 14.8% Cu powder; 6.0% zircon; 16.1 % asbestos and 6.0% baryta.
Patent DE-2637748-A1 (DE)
Title: Swivel support device for lampshades - has two contact surfaces providing angle adjustment through friction fitting or adhesion
Inventor: ZANKER HELMUT
IPC: F21V17/02
Filed: 1976-08-21
Abstract: A swivel device is for lampshades. It has a movable and easily detachable connection of the lampshade with the fixed body of the lamp. The movable connection is assured by an intermediate section (1). The section is attached to the base which represents a link together with the lampshade and or its holder (2) in such a way that the axes of both link sections (1, 2) may be placed at an adjustable angle to each other by a loose attachment of their contact surfaces through the flexibility of one of these assisted by the force of friction, fitting or adhesion.
Patent DE-2638615-A1 (DE)
Title: Speed control for DC fan motor in vehicle - has series Darlington pair regulator with control transistor and potentiometer slider
Inventor: BEUTER RICHARD
IPC: H02P7/288
Filed: 1976-08-27
Abstract: The speed control, for a DC motor (driving a fan in motor vehicle) controls speed from zero to max. rpm and switches the supply current to zero if the motor becomes blocked and thereby avoids temperature increases likely to cause damage. The motor is connected in series with a Darlington pair regulator (7, 8) whose base is coupled to the collector of a control transistor (6). The control transistors base is connected to the slider of a potentiometer (2) coupled across the voltage supply terminals. The potentiometer controls the control transistor so that its collector assumes a voltage of magnitude that allows the Darlington regulator to pass the wanted amount of current to the motor needed to give the required speed.
Patent DE-2639474-A1 (DE)
Title: Thrust nozzle tilting gear for air, space craft control - using annular flexible element in jet pipe and hydraulic operated jack
Inventor: SCHWAERZLER HANS-JUERGEN
IPC: F02K1/00
Filed: 1976-09-02
Abstract: The thrust nozzle tilting gear for ir, space craft control is intended for 10-20 deg. tilt angles. It comprises an annual flexible element (13) forming a universal joint between jet pipe (11) and nozzle (12) and hydraulic jack units arranged to control the angle between the two. Holding units (15, 22) are fitted in pairs equidistant from the nozzle axis (14), at right angles to one another; each pair linked on the pressure side by a hydraulic circuit embodying locking and leakage compensating arrangements. To each pair is linked one control unit (16), with a separate supply system, which does the tilting. Holding units are biassed to centre the nozzle if hydraulic pressure fails.
Patent DE-2645749-A1 (DE)
Title: Vehicle floor reinforcement device - has Y-shape with tubular bearer arms bolted to front trailing arm suspension points
Inventor: SUENDERMANN DIETRICH ING GRAD
IPC: B60G7/02
Filed: 1976-10-09
Abstract: The reinforcement is fitted to existing vehicles which are expected to be subject to abnormal road conditions. The reinforcement consist of a Y shaped tubular unit provided with a bolt hole at each of its free ends. The reinforcement is bolted to the front wheel axle trailing arms bearers (7, 8). The second part is welded to the first part and secured at its free end to the left hand trailing arm at the second suspension point (10). The reinforcement stiffens the floor unit in all directions to prevent a parallelogram movement.
Patent DE-2649944-A1 (DE)
Title: Seal for keyboard or switch - has membrane clamped by snap action collar into slot in centre piece of each button
Inventor: WASMEIER ALBERT
IPC: H01H13/06
Filed: 1976-10-30
Abstract: The seal, for a keyboard, switch or similar component, has a sealing membrane (14) clamped to the centre piece (11) of each button or switch by a collar (12). The edge of the membrane locates in a slot (16) in the centre piece. The clamping collar presses the membrane edge down against one side of this slot. Membranes extend between button centre pieces throughout the keyboard. The centre piece of each button has an overhang (18) over which the clamping collar snaps into place. The collar has an appropriately shaped inner surface. The slot slopes downwards.
Patent DE-2704484-A1 (DE)
Title: Power supply circuit for TV receiver with standby operation - has transformer supplied with HF pulses during normal operation, and LF pulses during standby
Inventor: GOSEBERG WALTER DIPL ING
IPC: H04N5/63
Filed: 1977-02-03
Abstract: The circuit has a transformer in whose primary circuit current pulses are generated at a frequency higher than the mains frequency. Its secondary winding delivers operating voltages including heating voltage for the picture tube through a rectifier and a storage capacitor. In stand-by operation the pulses are flowing intermittently at the mains frequency. The storage capacitor (18) for the heating voltage has such a high capacitance that the picture tube is supplied during stand-by operation with the prescribed reduced heating voltage (4.7V).
Patent DE-2704615-A1 (DE)
Title: Tool for expanding ends of piston rings - has two four bar linkages for tangential jaws with handle levers
Inventor: MIERBACH ALBIN
IPC: B25B27/12
Filed: 1977-02-04
Abstract: The tool for expanding cut spring rings is used esp. for piston rings. The tool has two jaws in contact with piston ring ends separated by a gap. A piston ring end is held by a hook on a jaw which also has a lug for supporting the ring. Fracture of the piston ring is prevented by ensuring uniform stress distribution. The tool has two arms (4, 5) parallel to the ring split ends. Two separate four bar linkages are formed, one on each arm. The ring end spreading jaws (8, 9) are connected by parallel links (10, 11, 12, 13) to the arms pivoted at common pivot point (3) and these areas are actuated by connected handle levers (6, 7). Symmetrical spreading or ring ends is ensured by additional guide levers.