baber/WOPTO huggingface dataset:
Patent DE-2931746-A1 (DE)
Title: Travelling wave tube cathode structure - has two=part cathode which is indirectly heated by coil under main disc and vents to ring cathode
Inventor: MALZAHN PETER
IPC: H01J23/04
Filed: 1979-08-04
Abstract: The cathode structure is for travelling wave type electron tubes which are required to operate over a range of peak currents. The cathode is an indirectly heated disc and ring type in a coaxial mounting. The circular disc (3) part of the cathode is surrounded by the separate ring part (4). The inner disc (3) is supported by the inner tube (9) of the coaxial unit and the outer ring cathode (4) is supported by the outer tube (9'). The two tubes are separated and supported by insulating ring elements (5,6). The heating element (7) is located inside the inner tube (9) below the disc cathode (3) unit. The ring cathode element (4) is heated through the apertures (8) in the inner (9) coaxial support tube. The outer ring cathode (4) also has a shadow grid (10) above it. Outputs from the cathode modulator feeding the two cathode elements are also coupled through a grid modulator to the shadow grid.
Patent DE-2934469-A1 (DE)
Title: Hospital bed of stepped construction - comprises rigid plate supporting legs of patient and fitted with lateral supports
Inventor: KLEE GEB ROESLER CHRISTA
IPC: A61H1/02
Filed: 1979-08-25
Abstract: The stepped bed construction includes a rigid plate supporting the legs of the patient. It can be reinforced by the cover of the special trunk used to transport the bed, and can have a number of lateral supports (1,2,3,4). It can be packed in the trunk when not in use. The design allows rapid assembly, with much less effort than when pumping up air cushions, and it may be adapted to fit the needs of the individual patient. The rigid plate may be of metal or of plastics construction.
Patent DE-2944614-A1 (DE)
Title: Sealing system for two-section semiconductor device housing - uses hardening substance poured inside to joint level, followed by second layer
Inventor: EGERBACHER WERNER
IPC: H01L21/50
Filed: 1979-11-05
Abstract: The housing for a semiconductor device consists of an upper part (4) and a lower part (1). Both parts are cup shaped, and the upper part has a pouring hole for a sealing mass. The upper part has a groove (6) all round, forming a thin flange (5) which fits inside the wall of the lower part. To seal the two parts without using a sealing ring, the two parts are assembled, and sealing material poured in, until level with a plane (7) just below the external joint line (3). When this has set, a sand material can be poured inside until a second level (8) is reached.
Patent DE-2947038-A1 (DE)
Title: Adjuster without external energy requirement - has operating compressor piston as well as start piston, driven by linear motor
Inventor: EISSFELDT WERNER
IPC: F02B71/04
Filed: 1979-11-22
Abstract: The temperature adjuster consists of a pipe coil for a cold medium (1), a pipe coil for a hot medium (5), a compressor (2), a choke (21), an evaporator (6) and a condenser (20). There is an operating compressor piston (4) in addition to the start compressor piston (3). This operating compressor piston (4) is directly driven by a linear motor (14), consisting of a control disc (8) on a piston rod. This control disc drives two slide pistons via two follower discs (9,10).
Patent DE-2949587-A1 (DE)
Title: Cold extrusion of billet into tube - is carried out using anvil axially aligned with power pad in die
Inventor: HACKETT KENNETH PAUL
IPC: B21C23/08
Filed: 1979-12-10
Abstract: The cold extrusion includes feeding the billet into a die cavity while the cavity is open, closing one end of the die cavity and disposing an anvil in the opposite end to define an annular space between the anvil and the die cavity wall. The annular space is closed and pressure applied against a selected area of the billet sufficient to cause the billet to commence extrusion about the anvil and to fill the die cavity. The volume of the annular space between the anvil and die cavity wall into which the billet is extruded is increased while maintaining a uniform second pressure against the billet in opposition to the flow of the metal, the magnitude of the second pressure being less per unit area than the first pressure whereby the metal flows uniformly in the course of the extrusion.
Patent DE-2951479-A1 (DE)
Title: Lawn sweeping suction cleaner - has suction air passing over sound insulators in lid cavity, in flow to discharge port
IPC: E01H1/08
Filed: 1979-12-20
Abstract: The collector of a mobile lawn sweeper has a chassis with a power-driven blower in a casing with an inlet aperture for sucked material, and a closing lid (7). The latter incorporates a shallow hollow space (9), and an air intake aperture (12) on its underside (15) facing the collector (3). The hollow space is fitted with sound insulating material (20,21), over which the sucked air flows. The lid also has an air outlet aperture (27) guiding it to the ambient atmosphere. The air intake can incorporate a dust filter. The air inlet aperture is preferably located in the region of the suction fan outlet in the casing.
Patent DE-3000350-A1 (DE)
Title: Window operating mechanism case threaded socket - is of injected thermoplastics, with slits and flaps narrowing holes for clamping action
Inventor: EIGEMEIER WILLI
IPC: F16B5/02
Filed: 1980-01-07
Abstract: Threaded sockets, made of thermoplastic material, are non-twistably mounted in the knob area on a gearing case for window operation. They are made as injected components, with large-course threaded holes; the threaded screws, used in conjunction with them to secure the window handle plate, can be turned in with a clamping action. To increase the clamping effect, the sockets have slits in them and have widened lateral flaps (11) narrowing the threaded holes in a non-circular shape. Open cuts in the area of the clamping narrowed sections (7) permit resilient widening of the narrowed hole dia.
Patent DE-3001555-A1 (DE)
Title: Interference-free setting of background on TV receiver - using integrator in brightness signal operating at rear edge of dark signal
Inventor: KAADEN JUERGEN
IPC: H04N9/64
Filed: 1980-01-17
Abstract: The application is to t.v. receivers with facility for receiving and displaying videotext information. If the incoming signal is weak and susceptible to noise this can give rise to a disconcerting striated background effect when videotext is being displayed. The relevant part of the video signal can be cleaned up by adding an integrator (13) to the brightness signal channel (Y) between the decoder (2) and the picture controller (3). This integrator, or filter, is controlled by a switch (14) activated by pulses (15) from the controller in synchronism with the received signals. The integrator ensures that during the relevant interval a steady voltage level exists to set the background luminance on the tube (4) to an undisturbed value.
Patent DE-3002551-A1 (DE)
Title: Interplanetary spacecraft transporter unit - can carry several craft to deployment region in space without using their fuel, is rocket-propelled, steered, braked
Inventor: ROHR PETER
IPC: B64G1/10
Filed: 1980-01-25
Abstract: The spacecraft transporter is equipped to carry several such craft (8) to their deployment locality without expenditure of any of their own fuel, the craft are then available for a variety of missions. The transporter is propelled by a set of main rocket motors (3), has tiltable ones (4) for steering and fixed retro-rockets (5) for braking. The construction principle allows parts to be prefabricated on earth for assembly in space. The transporter can also be launched directly into space from earth, e.g. with booster-rockets.
Patent DE-3006250-A1 (DE)
Title: Belt drive tensioning equipment - has screwed spindle moving motor obliquely to line between shafts
Inventor: JUNGNICKEL LOTHAR
IPC: F16H7/14
Filed: 1980-02-20
Abstract: The belt drive tensioning equipment is partic. for a vee-belt drive between a motor and a machine fixed to a foundation, the motor sliding in a straight line on a frame likewise fixed to the foundation. The frame (5) is inclined to a theoretical plane (11) at right angles to the line (a-a) joining the shafts of motor and machine (8, 9). The motor (2) is guided in a straight line in the frame, and is moved by a screwed spindle (10). The design requires relatively little power to tighten the belts.
Patent DE-3008786-A1 (DE)
Title: Pipe trench with expansion shaft - has heat-recovery system in lateral bay containing expansion loop
Inventor: STOG WILHELM ING GRAD
IPC: F24D10/00
Filed: 1980-03-07
Abstract: The trench with expansion shaft is particularly for a district heating system, there being a lateral bay in the trench accommodating an expansion loop. A heat-recovery system (5) is mounted in the bay (5), typically comprising a pipe coil (10) through which a heat-transfer medium flows, mounted against one of the inside walls (6) of the bay. Alternatively there can be a heat exchanger outside the bay, connected to it by an air conduit through which warm air from the bay is delivered by a fan.
Patent DE-3010394-A1 (DE)
Title: Wood pulp grinder - has water passed through grinder under pressure
Inventor: BARNSCHEIDT WOLFGANG DR
IPC: D21B1/24
Filed: 1980-03-18
Abstract: In converting wood to a wood pulp, water is passed under pressure through the grinder, while the wood is pressed against it. The water is held at a pressure between 3-15 atmospheres above atmospheric pressure, and at a temp. above 85 deg.C. There are openings for the water under pressure at least in the mantle (2) of the grinder with the total surface area of the openings amounting to 0.2-3.0 per cent of the mantle surface, using openings with a cross section of 10-110 sq.mm. A hollow roller is used as the grinder, with a pressured water chamber static at the inner surface of the mantle of the hollow roller. The process allows a continuous grinding action, with a consistent wood pulp being delivered.
Patent DE-3012040-A1 (DE)
Title: Linked belting junction prodn. - using filler insertion in free space in coil strands to simplify bonding insertion
Inventor: BERGER HEINZ
IPC: D04C1/06
Filed: 1980-03-28
Abstract: In the manufacture of a linked belting, such as for papermaking machines, the two sets of strand coils are aligned for the insertion of the bonding. The free space for the intermediate strand coils, at least in the junction zone, is so filled that the final strand coil cannot distort in the direction of the linked belting. Pref. butts are inserted to fill the free spaces in the intermediate strand coils, in the form of needle studs which move up and down with the advance cycle of the linked belting, or they can be flexible blades, or brush bristles or rubber pads. Alternatively, strand coils can be shaped so that there is a coil with its longitudinal axis across the line of the linked belting, to fill the free space, formed by passing it over a roller on a moving carrier, and is passed into the intermediate strand coil at an angle between the two coil strands, and a number of such filler coils can be inserted at the same time, in a movement of an inserter across the belting width. The system simplifies joining linked beltings together, so that prodn. costs are reduced to allow the advantages of linked beltings to be employed without increasing equipment costs.
Patent DE-3014384-A1 (DE)
Title: Hay loading and transport trailer - has grab made in symmetrical halves swinging into transport position on vertical axis
Inventor: PACHTEU RUDOLF
IPC: A01B73/06
Filed: 1980-04-15
Abstract: The loading and transport trailer is particularly for crops such as grass, hay, straw etc. having a travel chassis and a rake-type grab with tines pointing in the travel direction and turning in two directions. Components on both sides and along the tine beam protrude upwards, enclosing the load space. The grab (15) comprises two separate symmetrical halves slewing about a vertical axis (14) on the centre line. In the transport position when swung together they form a box enclosed on four side for the transport of the crop, the bottom of which comprises rake tines and teeth, while the front and sides are of slats or grilles. Two clamping pipes (20) press down from above. The two grab halves are mounted on a frame comprising two dividend axles (6), which are joined together by a pivot pin (7) and a forked piece (8) to which the travel chassis is fixed.
Patent DE-3015487-A1 (DE)
Title: Valve piston in all metal valve - has twin sealing flanges to provide stand-by function
Inventor: ELSIG ROLF ING GRAD
IPC: F16K25/00
Filed: 1980-04-23
Abstract: The all metal valve has a valve piston (6) which is provided with two coaxial sealing collars (7,11). The main seal collar (7) is located at the leading end of the piston (6) and it acts against the internal taper (8) of the valve seat ring (9). If the main seal (7) fails, the secondary ring (11), which is located as a radial flange on the piston (6), becomes active. Its leading axial face is pressed against the opposite axial face on the valve seat ring (9) to produce a seal.
Patent DE-3022054-A1 (DE)
Title: Stud for arc stud welding processes - where head of stud has conical or domed tip employed to centre the electric arc
Inventor: MAUER DIETER
IPC: B23K35/02
Filed: 1980-06-12
Abstract: A stud is welded to another metal workpiece by an electric arc obtd. by discharging a capacitor. The stud has a head; and the end surface of the head is provided with a profiled ring recess which surrounded a conical or domed tip projecting outwards on the axis of the stud. The tip centres the electric arc between the stud and the metal workpiece. The stud pref. also has an outer rim of uniform height, which surrounds the ring recess. The tip is pref. used to make an initial electric contact with the workpiece, and is then moved away from the latter so the arc forms at the centre of the stud. Provides automatic centering of the arc, so strong welds are obtd. The profiled head on the stud can be easily made when mfg. the studs from wire on cold heading machines.
Patent DE-3022287-A1 (DE)
Title: FSK receiver compensating for transmitter frequency variations - has detector and compensator loops with different settling times
Inventor: HJOERRING HANS DIPL ING
IPC: H04L27/148
Filed: 1980-06-13
Abstract: A frequency shift keyed input (FSK) is applied to a phase detector (1) supported by a v.c.o. (3) which, in turn, receives the rectified signal via low pass filter (2) and a summing amplifier (7). This detector loop (PLL) supplies also a comparator (5) to produce the logic levels (DATA) at its output referenced to a stabilised voltage (VREF). An extra stabilising feedback loop consists of a signal line (D), a differential amplifier (8), a filter (9) which passes only very slow changes of signal level, and a sample-and-hold circuit (10) whose output contributes to the v.c.o. control input.S Metal oxide transistors (T1,T2) short out the filter sections at the beginning of each new reception period in order to allow the middle frequency voltage level to settle quickly. Then the transistors are slowly made non-conductive. The sample-and-hold circuit may be replaced by a digital store and a-d and d-a converters.
Patent DE-3022937-A1 (DE)
Inventor: OERTLI EMIL
IPC: B27G13/14
Filed: 1980-06-19
Abstract: The cutter has a reversible blade (25) which is fastened in a groove (37) with a countersunk-head screw (43). The ground faces (29) serve at the same time as mating surfaces which bear against corresponding side faces (39) of the groove (37). During operation of the cutter, the cutting edge (18 or 20) describes a surface of revolution which is inclined at an angle, enclosing the cutting body, of less than 90 DEG  to the cutter axis. As a result, the cutting edge (18, 20) performs a planing action. The edge of the second side (35) adjoining the cutting edge (18) is rounded (30). The first side (29) is bent up like a ski tip where the first side (29) adjoins the second side (35), so that it forms together with the second side a peripheral fillet cutting edge (34) of the cutter. The ground chamfer surface of the side (29) thus runs in a fillet (36) towards the side (35). The setting angle  gamma ' of the cutting edge (18) thereby merges smoothly into the rake angle  gamma  of the cutting edge (34) so that the reversible blade works over the entire cutting edge with favourable axial or rake angles. <IMAGE>
Patent DE-3029263-A1 (DE)
Title: Cosmetic cream and liq. compsn. - contg. added de-saccharified, deproteinated, opt. laevo-lactic acid-enriched sour whey serum (AT 15.12.80)
IPC: A61Q19/00
Filed: 1980-08-01
Abstract: Cosmetic compsn. contains 1-20 wt% stabilised, filtered, de-saccharified, de-proteinated, opt. L(+)-lactic acid-enriched sour whey serum, esp having pH 3, admixed with a standard cosmetic compsn. vehicle. The cosmetic compsns. include creams, lotions, masks, alcohol-contg. tonic, shampoos and bath additives. Storage-stable cosmetics are obtd. Sour whey properties can be made full use of. Sour whey contains natural L(+)-lactic acid, natural D,L-lactic acid, vitamins A, Bl, B2, B6, B12, C, biotin, pentothenic acid and minerals. Whey serum pH 3 allows the preservation or build-up of skin acidity.
Patent DE-3030764-A1 (DE)
Title: Carburettor for IC engine control - has three position actuator with lug on second membrane limiting movement of first membrane
Inventor: MIEGE KLAUS DIPL ING
IPC: F02M3/06
Filed: 1980-08-14
Abstract: The throttle (3) of the carburettor is operated by a plunger (16) attached to a membrane (14) in an actuator (6). The actuator contains a second membrane (13). The space (19) on one side of the first membrane is open (20) to atmosphere. The space (27) between the membranes and the space (24) on the other side of the second membrane are each connected to a valve (10,11) which can put them in communication either with atmosphere (30) or with the suction pressure (9) downstream of the throttle. The second membrane carries a lug (23) which projects towards the first membrane and limits its movement. This gives a simple, three-position actuation.
Patent DE-3030774-A1 (DE)
Inventor: CAPPEL BERT ING GRAD
IPC: B41F31/04
Filed: 1980-08-14
Abstract: An ink fountain including a frame defining a horizontal slot adjacent the fountain roller. Arranged side by side in the slot is a metering assembly in the form of a series of flat slides each having a cam assembly at its rear end for adjusting the position of the slide with respect to the fountain roller thereby to meter ink in predetermined thickness in respective zones. Each slide is formed of a body having secured thereto a rectangular tip portion formed of resilient plastic. The tip portion of each slide has embedded in it a blade of wear resistant spring metal, the blade being coextensive with the width of the slide and so oriented as to present a flat face to the fountain roller defining, with the fountain roller, a sharply acute cusp. The rectangular tip portion of each slide is relieved in the region just behind the spring metal blade to permit the blade to flex broadwise resiliently and accommodatingly when the slide is advanced to bring the edge of the blade against the surface of the fountain roller thereby to achieve a seal between the blade and the fountain roller with only limited reaction force being exerted between them.
Patent DE-3032730-A1 (DE)
Title: Coach door pneumatic valve control - has throttle unit, preventing sudden door closing movement
Inventor: KLATT ALFRED
IPC: E05F15/50
Filed: 1980-08-30
Abstract: The switchable valve is for alternate ventilation/ evacuation of pneumatic cylinders, esp. in pneumatic vehicle door controls. It has a housing with two independent inlet valves connected via channels; two outlet valves; and double valve elements associated with two consumer circuits. A throttle is connected to the housing channels, which may be switched between two positions by a switch element. In the first switched-on position of the throttle, the compressed air flowing through an inlet connection, passes through the open inlet valves to the consumers. In the second switched-off position, the throttle permits free flow of the air from the inlet to the consumers.
Patent DE-3035643-A1 (DE)
Title: Low shrinkage impact resistant moulding compsn. - comprises polyethylene ether and impact resistant styrene! polymer with specific mol. wt. and mol. wt. distribution
Inventor: BRANDSTETTER FRANZ DIPL CHEM D
IPC: C08L71/12
Filed: 1980-09-20
Abstract: A thermoplastic moulding compsn. comprises an impact resistant styrene polymer (I) contg. a matrix with a wt. ave. mol. wt. (GPC) of greater than 270000 and a mol.wt. distribution of 3 or less and a polyphenylene ether (II). The compsn. comprises 5-90 pref. 20-80 wt.% (I) and 95-10 pref. 80-20 wt.% (II). (I) are prepd. by polymerisation of monovinyl aromatic monomers in the presence of a rubber. The amt. of rubber in (I) is 2-20 pref. 5-15 wt.%. (II) is esp. poly(2,6-dimethyl-1,4-phenylene)ether (IIA). The mouldings have low shrinkage and high impact resistance.
Patent DE-3035852-A1 (DE)
Title: Braille element for alphanumeric output - has pins raised by electro-hydraulic or piezoelectric actuation element forming part of data processing system
Inventor: COLANI CLAUS
IPC: G09B21/00
Filed: 1980-09-23
Abstract: A display element for alpha-numeric representation is designed to operate on the Braille principle and is for use with data processing systems. The unit has a number of pins (A,B) that can be raised above the surface of a plate to form Braille characters that are sensed with the fingers. The pins are raised by pressing a plunger (9) to deform a diaphragm (8) that encloses a liquid volume (7). Deformation of the diaphragm occurs to raise all pins. As the actuating plunger is released, certain selected pins are held in the raised position by piezoelectric strips that are deformed by applied electrical signals (13,14).
Patent DE-3036465-A1 (DE)
Title: Electric machine with rotor geared to drive shaft - has two identical, parallel-coupled epicyclic gears, with planet gears carried by studs secured to housing
Inventor: TRIEST EIKE DIPL ING
IPC: H02K7/116
Filed: 1980-09-24
Abstract: The drive shaft of a driven machine is operated via an epicyclic gear from a rotor of an electric machine. The stationary part of the epicyclic gear are secured to the housing of the electric machine. The design incorporates two parallel connected, identical epicyclic gears (15) whose planetary wheels (14) are each carried by a stud (16), secured to the electric machine (1) housing (4). They mesh with the inner toothing (13) of a hollow rotor hub (9). The sun wheels (17) are secured to the drive shaft (2) in the housing and connected to at least one working machine either directly or via a clutch (3). Pref. the inner toothing is arranged adjacent to a front surface of the hollow rotor hub. The front faces of the latter are each fitted with a flange-forming shoulder (10), carrying a ring (11), with the inner toothing on its inner surface (12).
Patent DE-3038241-A1 (DE)
Inventor: HAARS ANNEGRET DR RER NAT
IPC: D21C11/00
Filed: 1980-10-10
Abstract: The invention relates to a method for precipitating lignin sulphonates from sulfide wastes, in that a precipitation complex develops by the addition of polycations.
Patent DE-3038727-A1 (DE)
Inventor: REMY GRANDJEAN
IPC: G04G21/00
Filed: 1980-10-14
Abstract: A device for supplying the watch movement which comprises a time base (1) and a frequency divider (2) producing at least two signals (c), (d) at different frequencies. The two signals supply a logic selection device (3) of which the output supplies the circuit (5) for controlling the display of the timepiece movement. An actuating device (4) controls the selection device (3) in such a way that a pulse in the supply voltage causes the circuit (5) for controlling the display to be supplied by one signal (c) or the other signal (d) of the frequency divider (2) and thus causes the display to operate at different speeds.