baber/WOPTO huggingface dataset:
Patent DE-2605216-A1 (DE)
Title: Screen foil production for electric razors - by electrodeposition of metal layers; one being nickel-iron alloy over intermediate copper layer
Inventor: BLUME FRIEDRICH
IPC: C25D1/08
Filed: 1976-02-11
Abstract: Edge extension of the perforation is coated with Cr over the ridge so as to extend into the cone. The perforated foil is given improved wear resistance by (a) covering a metal plate with a pattern of the field of perforations; (b) coating the screen lattice with allayer of Cu by electrode-position which forms an intermediate coating; (c) applying an oxidising treatment, and (d) another metal electrodeposit of a Ni-Fe alloy contg. max 25 wt. % Fe (5-10 wt. %) and which covers also the sides of the intermediate coating. A masking lacquer is applied to the front of the Ni-Fe electrodeposit while still on the die, and the Ni-Fe electrodeposit is removed together with the Cu coating from the die. The opposite side of the Ni-Fe alloy which is not covered with lacquer is activated, coated thinly with Cr, the lacquer coating is removed and the Cu layer pulled off.
Patent DE-2607531-A1 (DE)
Title: Explosively expanded plug - for sealing defective tubes in a heat exchanger has central partition and two explosive charges
Inventor: ZONDAG NICOLAAS ABRAHAM
IPC: F28F11/02
Filed: 1976-02-25
Abstract: In the sealing of an opening a tube plate at the position where the end of a pipe of the heat exchanger is welded in a bore in the plate, using a hollow metal plug containing locally explosive material and detonating means, which is placed in the cavity within the plate and is thereafter radially expanded by detonating the explosive in such a way that it forms a gas- and liquid- tight joint with the wall of the heat exchanger surrounding the cavity, (i) a plug divided by a partition wall into two coaxial cavities, each open at one end and contg. an explosive charge and detonator and (ii) after the plug has been placed in position within the relevant cavity in the tube plate, both charges are exploded (nearly) simultaneously. There is no risk of crack corrosion between the tube plate and the closed end of the plug.
Patent DE-2609285-A1 (DE)
Title: Rectifier control using unbalanced bridge - has similar extinguishable rectifier bridge using quenching capacitors, charging diodes and extinguishing thyristors
Inventor: BARZ JUERGEN
IPC: H02M7/162
Filed: 1976-03-04
Abstract: The extinguishing circuit consists of extinguishing thyristors, quenching capacitors and charging diodes, and is allocated to the extinguishable unbalanced, partly controlled rectifier bridge thyristors. Voltage control in the lower voltage range is achieved up to a fixed adjustable angle by the extinguishing device by phase shift control of the extinguishing thyristors. Further voltage control is achieved by the controllable thyristors, with the phase angle changed over a certain range in accordance with the load, so that the voltage across quenching capacitors does not exceed a maximum permissible value.
Patent DE-2625677-A1 (DE)
Title: Belt friction reduction process - with gas introduced between belt and support with porous top
Inventor: EICHHORN HELMUT
IPC: B65G15/60
Filed: 1976-06-08
Abstract: The process reduces the friction between a moving belt or strip and a closed support, porous at the top. A gas is introduced between support and belt, to support the latter. The gas can be used to carry out physical or chemical treatment of the belt. The design greatly reduces wear and power consumption, and in the case of strip material such as glass sheet the risk of damage to the surface is also avoided.
Patent DE-2627638-A1 (DE)
Title: Electrical bite indicator for fishing rod - has line passed between contacts to break circuit to lamp or acoustic indicator
Inventor: FALTER JUERGEN
IPC: A01K97/12
Filed: 1976-06-19
Abstract: The electrical bite indicator is for fishing, a bite being acoustically indicated to the angler in daylight and optically indicated by a lamp during darkness. The device has an on-off knob. After being switched on, the fishing line is introduced in the middle or at the tip between the two contacts, which are fitted to the device. Consequently, the circuit is broken and the lights on the top side of the indicator can no longer operate. As soon as a fish bites, the line is tensioned so that it is released from the contacts and the circuit is re-made.
Patent DE-2629044-A1 (DE)
Title: Optical instrument esp. for eye observation - has diaphragm system to mask out specular reflection and light guide for rapid repeated illumination
Inventor: GOVIGNON JACQUES P
IPC: G02B6/42
Filed: 1976-06-29
Abstract: Optical instrument permits examination of an object, esp. the inner eye, with reduced specular reflection through a transparent, reflecting and diffusing medium. Light from a source is reflected by the object and through the medium to an image recorder. A light guide directs the light to achieve rapid repeated illumination of consecutive parts of the object. A diaphragm located between the medium and the image recorder has a movable aperture which can be moved with the light guide for rapid scanning of the consecutively illuminated parts of the object. The rest of the diaphragm masks out the specular reflection. The light guide is pref. a rotating diaphragm and optical fibres are pref. used to transmit the light from the light guide to the object.
Patent DE-2629175-A1 (DE)
Title: PBX with timing of local and short distance calls - has warning signal which is given specified time before each next timing pulse
Inventor: FRANCHI BRUNO
IPC: H04M15/18
Filed: 1976-06-29
Abstract: The PBX telephone exchange unit has two timers (Z1, Z2) has two signal inputs from pulse flank signal control units (FS1, FS2), the second being connected to a flip-flop (K). A second pair are connected to the second timer, one (FS3) through a gate element and the other (FS4) directly. Spacing of counting pulses in the timing zone is much wider than the max. spacing of pulses for long distance calls timing. A warning signal is transmitted to the calling subscriber at a specified time interval before the the next timing pulse. This process is released by the first timing pulse for the local or short distance call.
Patent DE-2634573-A1 (DE)
Title: Coastal craft steering system - has retractable angled rudder blades selectively lowered on each side from housings formed by watertight compartments
Inventor: KAUFER NICOLAUS
IPC: B63H25/06
Filed: 1976-07-31
Abstract: The coastal craft is equipped with main rudders as well as additional rudders which are extended out of the hull line to provide extra manoeuvrability in confined waters. The additional rudders are extended vertically from watertight compartments, open to the bottom, and set in fixed steering angles. The amount of extension determines the amount of steering control. The rudders have profiled bottom edges to fit into the hull contour and minimise drag. Their settings are in an open array, on each side of the hull, directed towards the bows. Differential extension provides the steering control.
Patent DE-2638538-A1 (DE)
Title: Electric machine with spring-mounted rotor support structure - has springs made flexible in peripheral direction and stiff in radial direction for controlling torsional vibrations
Inventor: UTECHT MANFRED DIPL ING
IPC: H02K1/30
Filed: 1976-08-24
Abstract: The electric machine having a rotor supporting structure carrying springs controls the torsional vibration properties of the rotor by using springs which are flexible in the peripheral direction, and rigid in the radial direction. The various rotationally flexible springs are connected in parallel with one another in the supporting structure for the rotor. The supporting structure contains leaf-spring plates arranged in a radial direction, and radial arms run parallel to the leaf-spring plates, these radial arms being fixed to the supporting structure, on one side at least, via the rotationally flexible springs.
Patent DE-2639028-A1 (DE)
Title: Hot-bed window operating mechanism - has piston-cylinder unit coupled to fluid container at one end and mounting bracket which receives pin on window
Inventor: WEBER LUDWIG
IPC: A01G9/20
Filed: 1976-08-30
Abstract: A piston cylinder unit is connected to a fluid container and is operated by temperature-caused volume change of the fluid. One one side, the piston-cylinder unit is fitted to a fixed holder, and on the other side it is hinged to the window. The piston (7) engages on the window (2) at a short distance from its pivot bearing (3) at a fixed hinge point (14). The devive is so pivot supported on the holder (10), that in the closed position of the window, the piston forms an obtuse angle with its region close to the pivot bearing.
Patent DE-2639468-A1 (DE)
Title: Torque converter located between two coaxial shafts - has flywheel at angular orientation driven by bevel gearing to produce inertial force for rotating housing
Inventor: SCHUELER GERHARD DR ING
IPC: F16H33/10
Filed: 1976-09-02
Abstract: The torque convertor connects two coaxial shafts (1, 2) and is located inside a rotating housing (4). The inside end of each shaft (1, 2) carries a bevel gear wheel (5, 8). Each bevel gear is in mesh with a similar bevel gear (6, 7) which are located by the centre shaft of a flywheel (9). The axis of the input and output shaft (1, 2) and the axis of the flywheel have a constant angular relationship. When the input shaft transmits its torque to the flywheel, inertia forces are produced which rotate the housing (4). The resulting output on shaft (2) includes a convertion of torque and speed.
Patent DE-2639875-A1 (DE)
Title: Spray of fire extinguisher type, e.g. for crowd control - contg. small amts. of lachrymatory agent and pigment
Inventor: POSSMANN MARTIN DIPL KFM DR
IPC: F41H9/04
Filed: 1976-09-04
Abstract: Spray comprises small amts. of a Lachrimatory agent and pigment together with known substances. Pref. up to 5 vol.% of additives is used. The lachrimatory is pref. powdered capsicum extract and the pigment is pref. a mineral oxide.
Patent DE-2643598-A1 (DE)
Title: Overhead drilling machine column - has springs between frame components tensioned to bring machine to work application point
Inventor: SCHOCKER BERTHOLD
IPC: B23B45/14
Filed: 1976-09-28
Abstract: The drilling machine column, partic, for overhead drilling, comprises two beam parts movable towards each other in a longitudinal direction by a lever. One of these beam parts carries directly, or indirectly via in intermediary piece or holder, the drilling machine. Between both counter-moving frame pats (11, 12), springs (17) are inserted, and which support against the parts (11, 12) directly or via intermediary components. Before the drilling process commences, the springs (17) are tensioned by lever rod (21) or a draw cable attached to the two frame parts. The drilling machine (4) can be pressed to its point of work application.
Patent DE-2645391-A1 (DE)
Title: Automatic control for windscreen wipers - has electrostatic sensor pairs on windscreen to detect presence of water
Inventor: SCHMIDT KARL-HEINZ
IPC: B60S1/08
Filed: 1976-10-08
Abstract: The automatic windscreen wiper control has pairs of di-electric, or semi-conductor sensors spaced over the windscreen to detect the incidence of water or ice and snow particles. The sensors operate on the change in electrostatic charge from the rain or snow. Interference from radio waves etc. are eliminated by having pairs of sensors with a differential control between them.
Patent DE-2650147-A1 (DE)
Title: Eddy current machine with field system - has disc rotor with loss elements and magnetic field generated by field system
Inventor: JACKSON PHILIP NORMAN
IPC: H02K49/04
Filed: 1976-10-30
Abstract: The homopolar magnetic field passes through the loss elements and also passes axially through at least one circular region (17) of the rotor (12). This region is offset radially from its outer edge. The field-generating force is constant in every angular position. The circular regions of the rotor have magnetic parts which alternate with non-magnetic parts having a high resistance. When the rotor turns, each point on the loss elements is exposed to an alternating magnetic field by the fluctuating permeance of the rotor. However, when the rotor turns in relation to the field system, each point of the rotor is subjected to a constant magnetic field.
Patent DE-2655119-A1 (DE)
Title: Combine harvester threshing gap adjuster - has pairs of servo-cylinders connected to concave and operated by double acting hydraulic rams
Inventor: DAMNJANOVIC MILIVOJ
IPC: A01F12/28
Filed: 1976-12-04
Abstract: The adjuster varies the gap between the threshing drum and the concave of a combined harvester. Hydraulically operated servo-cylinders are hinged on the inlet-and outlet sides of the concave. The inlet- and outlet sides of the concave are adjustable with respect to the threshing drum via paired, double-acting servo-cylinder. The servo-cylinders are connected in parallel to double-acting hydraulic transmitters. The hydraulic transmitters are double-acting cylinders, whose pistons can be moved by adjusting gears. A hydropneumatic accumulator is connected to the output of each cylinder which causes a gap increase.
Patent DE-2659783-A1 (DE)
Title: Twist-on closure for bottles or glasses - provides complete seal against outside atmosphere by including container section projecting into bottle interior
Inventor: WEIBERG WILLI
IPC: B65D51/28
Filed: 1976-12-31
Abstract: Special closure for bottles or glasses includes a container (1) which projects into the opening of the bottle etc. to be closed. The container is produced by the appropriate shaping of the closure which also includes a separate closure seal. The container section of the closure is connected to the edge by stays which tear open easily and the edge of the container section is fitted with one or more indentations (7). The container section projects beyond the neck of the bottle or glass and reduces conically towards its interior.
Patent DE-2713598-A1 (DE)
Title: Hydraulic piston ring assembly - has plastics carrier ring under radial prestress of slotted metal piston ring
Inventor: LEPPICH ERHARD DIPL ING
IPC: F16J15/32
Filed: 1977-03-28
Abstract: The piston ring is for use on hydraulic cylinder units for shock absorbers. The piston (1) is provided with a circumferential recess (2) on which the carrier ring (3) of a PTFE-material is fitted. At one end the recess has a radial groove (5) in which a metal piston ring (4) of usual split design is fitted. The split design of the ring causes a radial prestress acting on the inner surface of the carrier ring. The other end of the recess has a further groove (8). The two edges of the carrier ring are provided with notches (6, 7). the notches have a direct connection with the groove and a notch connects with the groove on the cylinder.
Patent DE-2717370-A1 (DE)
Title: IC engine with main and auxiliary combustion chambers - has hydraulic damper to control peak pressure in auxiliary chamber
Inventor: SCHMIDT MARTIN
IPC: F02B19/06
Filed: 1977-04-20
Abstract: The internal combustion engine of the main patents, has a weak mixture fed to the main combustion chamber, ignited by a flame resulting from a rich mixture ignited in the auxiliary combustion chamber. The auxiliary chamber peak pressure can be regulated by a piston (6) working in a cylinder connected to the auxiliary chamber. The piston is connected by a push rod (1) to a shaft (1) or the helical gearwheel turned by it. The shaft is in mesh with a rack (15) which is sprung at one end and subject to hydraulic pressure from a piston (16) at the opposite end. The helical gearwheel can be turned manually by a worm drive (21).
Patent DE-2720052-A1 (DE)
Title: Preparation of wound capacitors for processing - involves connecting their terminal wires to stiff supporting wire
Inventor: WESTERMANN WILHELM
IPC: H01G13/00
Filed: 1977-05-02
Abstract: To avoid bending or tearing during the processing of wound capacitors having terminal wires of e.g. of tinned copper brazed or soldered to their ends, the terminal wires of a large number of capacitors are brazed to a stiff supporting wire of e.g. coppered iron. After the capacitors have been processed the supporting wire is cut away from the terminal wires. The soldering or brazing of the terminal wires to the capacitor windings and the brazing of the terminal wires to the supporting wire may be performed on a machine in one operation.
Patent DE-2721067-A1 (DE)
Title: Pallet conveyor floor for lorry - has endless drive belts at sides set higher than fixed central rollers
Inventor: MIDDENDORF JUERGEN DIPL ING
IPC: B60P1/36
Filed: 1977-05-11
Abstract: The pallet conveyor has two sets of endless belts which move the pallets, while the main weight is supported on fixed rollers set in lines between them. The height of the belts is slightly raised above that of the fixed rollers. The pallets are secured held on the elastic betls, by some of their weight, and do not slide laterally. The conveyor is simple to instal and operate, with few components.
Patent DE-2731783-A1 (DE)
Title: Sound absorber formed by pouring and fixing dense particles - comprising rubber or plastic filled with barite, metal or metal oxide powder
Inventor: SEILER STELLA
IPC: C04B18/02
Filed: 1977-07-14
Abstract: A sound absorber consists of particles fixed by an adhesive or soft plastic in an unregulated poured construction. The particles have a high specific wt. and homogeneous soft structure. Pref. the particles consist of rubber and/or plastic, filled to saturation with heavy materials, e.g. barite, metal or metal oxide powders. The particles are produced by taking the rubber or plastic raw material, strengthened with heavy powders, and moulding into sheets or strands. The material is vulcanised or hardened to a Shore hardness between 20-80. It is then cut up to give granules the size of peas or lentils. The absorber is partic. suited with machine parts exposed to strong vibrations, e.g. cement vibrators. The technique provides cheap effective sound absorbers suitable for use in facing or in cavities.
Patent DE-2732027-A1 (DE)
Title: Heat exchanger for recuperator - having lens shaped body with internal partition and outer annular outlet line and inner inlet
Inventor: FIEDLER JUERGEN ING GRAD
IPC: F28D21/00
Filed: 1977-07-15
Abstract: Heat exchanger has a heat transfer space for the liquid to be heated, a heat transfer space for the fluid to be heated a heat transfer wall and a sepg. partition inside it. There is an inlet which discharges below the partition and an outlet which collects from above it and forms an annular passage around the inlet. The heat transfer surface forms a housing around the partition, being mounted at a distance from it. The unit is convex lens shaped, having both inlet and outlet mounted on one side. It is formed from two dishes welded together. It can be rectangular esp. square. The partition is joined to the inlet line and has a reinforcement ring surrounding it. Used as a heat recuperator e.g. in outlet flues and provides good heat transfer with very simple construction.
Patent DE-2732661-A1 (DE)
Title: Two-way valve for thermo-weldable food sachet - has two passages through sachet wall to twin cups on partition plate
Inventor: GOGLIO LUIGI
IPC: B65D77/22
Filed: 1977-07-20
Abstract: The two-way valve may be used on thermo-weldable sachets contg. foods and is closed when pressures inside (A) the sachet balance those outside (B). The valve comprises twin co-axial cups (14, 15) mounted in opposition on a partition plate cum mounting flange (9). Each cup is covered by a floating flexible obturator disc (18, 19) within an axially adjustable perforated cap (22, 23). The base of the resp. cups is traversed by an inclined hole (16, 17) which communicates with the exterior on the opposite side of the partition (9). The caps (22, 23) can be displaced onto the cups (14, 15) wedging the obturator discs (18, 19) on the cup rims and closing the valve passages concerned. The caps may inc. a conical projection (28) and an intermediate circular rib (31) which deform the obturator and promote the seal.
Patent DE-2734820-A1 (DE)
Title: Electronic DC battery charger - has boost circuit and control circuit and sensors to detect battery voltage and temp. to indicate state of charge
Inventor: BROWN LOWELL K
IPC: H02J7/00
Filed: 1977-08-02
Abstract: A, battery charger receives d.c. power from an external source through a power connector. Switch means receives the power from the power connector and supplies it to a boost circuit which is removably and conductively connected to a battery. A control circuit is connected to receive a battery voltage signal from the battery and a battery temp. signal from a sensor positioned to detect battery temp. The control circuit determines the state of charge of the battery from the voltage and temp. signals. The control circuit supplies (1) switching signals to the switch means to cause the switch to be conductive, and (2) boosting signals to the boost circuit to cause the boost circuit to charge the battery in accordance with a pre-selected charging program related to the state of charge of the battery.
Patent DE-2736088-A1 (DE)
Title: Bottled soln. sterilisation plant - with tight sliding doors between stages actuated in synchronism with conveyors
Inventor: WERNER KURT
IPC: A47L15/24
Filed: 1977-08-10
Abstract: A multistage sterilisation plant for soln. in bottles and tins is fitted with locks in the form of sliding doors between each stage, at the charge and at the discharge end. With a door between two adjacent stages open, the stages are still sealed pressure and steam-tight against the environment. The door motion is controlled in synchronism with the intermittent movement from stage to stage. This plant has a simple design and combines the smallest possible overall dimensions with a min. of heat losses.
Patent DE-2740370-A1 (DE)
Title: Manual sewing needle - has ear split into two shanks abutting one another to permit threading by lateral rather than axial displacement of thread
Inventor: FIORINI CESARE
IPC: D05B85/02
Filed: 1977-09-08
Abstract: Manual sewing needle has the ear provided with a slot or adjacent shanks of one side of the ear arranged such that they may be deflected for the purpose of threading the needle by pushing the thread laterally rather than axially through the ear. Pref. the shanks of one side of the ear are approx. of equal length and their adjacent ends are bent inwardly of the ear for deflection in the same direction by the insert-thread, which at the same time is prevented from leaving the ear by virtue of the formation of the shanks. Alternatively, one shank is much longer and resilient and abuts the inner side of the other shank which forms a short, rigid stub.
Patent DE-2740875-A1 (DE)
Title: Electric switch with two bridgeable contacts - has connecting element holding together two U=shaped leaf springs
Inventor: STORZ WERNER
IPC: H01H13/12
Filed: 1977-09-10
Abstract: The switch has two bridgeable contacts, a bridging and an operating element. The bridging element consists of two U or V-shaped leaf springs, one arm of each being pivotally joined together. The other arms serve as contacts. The central part of each V or U-shaped spring enters into a case supporting element. The two springs (8, 9) are held together by at least one connecting element (24). A connecting element may be positioned on either side of the pivoted spring arms.