baber/WOPTO huggingface dataset:
Patent DE-2557886-A1 (DE)
Title: Sandwiching thermoplastic foam between e.g. sheets of paper - using only elect ostatic attraction to exert the necessary pressure
Inventor: PETERMANN ERICH P
IPC: B32B27/06
Filed: 1975-12-22
Abstract: Foamed plastic from a roll is passed between charging electrodes, then on through the space between two rollers, round which the covering sheets are fed. After dwelling on a conveyor long enough for the plastic to cool, the now-covered material passes out between discharge electrodes. The heat for melting the plastic foam is obtained by passing the covering sheets round heated rollers on their way to the layering rollers; auxiliary rollers tension the sheets before they are laid. When the heated covering sheets were applied to the foamed thermoplastic (polystyrene) under the pressure of rollers, the pressure eliminated undesirably many air spaces from the softened foam. In the present method a minimal pressure is exerted electrostatically.
Patent DE-2603880-A1 (DE)
Title: Avalanche transit time diode - consists of two zones of opposite conductivity, with base zone sandwiched between them
Inventor: BRUYNE PATRICK DE DIPL ING
IPC: H01L29/864
Filed: 1976-02-02
Abstract: The base zone is doped with dissociation centres. The concentration of the base zones is such, that when the diode is biased in the blocked direction, and an avalanche breakdown is started, a barrier layer thickness (W beta) is smaller than the critical barrier layer thickness (WK) which must be present if the diode impedance has to have at the required frequency a negative real component. The diode has + and - electrodes on either side. Next to the + electrode (7) there is an N+ layer followed by an N- layer, an N+ layer and a P+ layer next to the - electrode (6).
Patent DE-2609229-A1 (DE)
Title: Oil scraper ring for internal combustion engine pistons - is supported by split elements
Inventor: MCCORMICK HAROLD E
IPC: F16J9/06
Filed: 1976-03-05
Abstract: The oil scraper ring fits in a groove at the base of the piston behind the pressure rings and consists of two parts. The scraper part of the ring, which slides over the cylinder wall, has two ribs (34a, 34b) which are joined by a web (24) in which are located oil holes (40). The faces (28a, 28b) fit in the slots of the piston. The outer ring is backed by an inner U-ring which is made up of segments (41a, 41b), kept in position by ribs (26). The top and bottom segments are staggered. The faces of the outer ring are coated with chrome or other hard surface.
Patent DE-2611021-A1 (DE)
Title: Change-over switch for printed circuits - has torsion spring extensions forming moving contacts and pins for coacting with conductor tracks
Inventor: TSUNEFUJI KATSUHIKO
IPC: H01H1/24
Filed: 1976-03-16
Abstract: The change-over switch for printed circuits has in the support (1) an electric carrier pin (5) in contact with one printed circuit track (2). The pin carries a switching element (8) in the form of a torsion spring, having extensions forming the moving contacts (8a, 8b). The stationary contacts are formed by conductive pins (6, 7) in the support in electric contact with two conductive tracks (3, 4) each stationary contact being in the movement path of the respective moving contact. The switch contains an actuating element (10), cooperating with the respective moving contact for its control. Each moving contact is lifted from its respective stationary contact for breaking of the switch, when the actuating element blocks the movement of the moving contact.
Patent DE-2611182-A1 (DE)
Title: Ventilated plastics sealed wall to flat roof joint - has covering bar fitted at interval from wall joint bar
Inventor: BREIVOGEL THEO
IPC: E04D13/14
Filed: 1976-03-17
Abstract: The wall joint system is for lengths of plastic on the wall adjoining a flat roof. It comprises a wall joint rail-shaped bar fixed to the wall, with a sealing band fitted behind a projection, and connected retainer bar for the plastic lengths which can be welded or cemented on. A covering rail bar (9) is fitted to the wall joint bar (3), leaving a gap for convection clear (8). The upper cantilevered section (11) of this projects beyond the cantilevered projection (4) of the wall joint bar. The retainer bar (15) has a downwards facing bent section (16), and is suspended into a correspondingly upwards facing bent section (14) of the joint bar. The heads (13) of screws (2) used for fixing the wall joint bar to the wall (1) can serve as spacers for the covering rail. The sealing strip is effectively covered while permitting promotion of vapour pressure release.
Patent DE-2619743-A1 (DE)
Title: Thermionic generator with several convertors - has heated emitters in caesium vapour filled envelopes with cooled collector electrodes
Inventor: HENNE RUDOLF DIPL PHYS DR
IPC: H01J45/00
Filed: 1976-05-05
Abstract: The generator has several thermionic converters insulated from each other and mounted on a common support. Each converter has an emitter and a collector. A common heat source is mounted in the support. Converters (2) are separate, similar units which can be evacuated. They are provided with individual sources of caesium vapour, and are exchangeably mounted on the support (1) around a heat source (3) fed with flame or concentrated solar energy. Emitters are heated through a wall (4) facing the heat source, and connected by its back side with the emitter. It is heated to a temperature between 1000 deg. and 1400 deg. C, pref. between 1000 deg. and a temperature below 1250 deg. C. A cooling medium is fed between the converter system and surrounding it outer jacket (7) to cool collectors, through a cooling block connected with collector of each converter.
Patent DE-2631019-A1 (DE)
Title: Sewing machine thread cutter - provided with pivoting resilient blade on gripper housing and oscillating rings on housing brings threads to blade
Inventor: CIUCANI MARIO
IPC: D05B65/00
Filed: 1976-07-09
Abstract: Thread cutting device in sewing machines having a rotary gripper located in a tubular member is provided with a first ring associated co-axially with the tubular member and having a slot for the passage of the needle and gripper threads. A peripheral slot co-operates with a slot (I) in a second ring supported rotatably by the first ring and oscillated by a pinion meshing with a toothed segment. Slot (I) is provided with an off-set hooked portion which engages the threads and brings them into engagement with pivotally mounted spring biased cutting blade, when the ring is angularly displaced by the segment. Device is used for sewing machines for finishing mocassins. Any number of threads of various thicknesses are cut positively.
Patent DE-2634054-A1 (DE)
Title: Noise damper for rack and pinion steering gear - has rack tensioning guide sleeve with rubber bush
Inventor: HEYARTZ RUDOLF
IPC: F16H55/28
Filed: 1976-07-29
Abstract: The rack housing (1) is provided with a cylindrical recess (1a) containing a sliding cover (5). The sliding cover houses a spring loaded pressure piece to apply a vertical force to keep the rack (2) pressed against the pinion (3a). The pressure piece is divided by a longitudinal gap into two cylindrical parts (4a, 4b) to mesh with the rack gable roof fashion. The sliding cover (12) tension is adjustable by a set screw (11) which bears on the sliding cover base. The plate (13) has a larger dia. than the cylindrical recess (1a) to serve as an oil seal. A rubber bush (14) is provided between recess (1a) and sliding cover (5) to prevent metal to metal contact.
Patent DE-2635746-A1 (DE)
Title: Sheet metal housing for electrical equipment - has two different U:shaped parts interlocking and one with reinforcing bar
Inventor: SCHROEDER HENRY
IPC: H05K5/04
Filed: 1976-08-09
Abstract: The sheet metal housing, for electrical equipment, consists of two U- or C-shaped parts (or of several L-shaped parts) that mate to form a strong structure. The first part has a reinforcing bar (32) joining the free ends of its sides (6). The second part has inward-folded mitred edge flaps (22). The first part has outward-folded right-angled edge flaps (8, 10). Elastic elements (23) are attached to the flaps of the first part. The second part's inward edges engage over the first part's outward edges.
Patent DE-2637123-A1 (DE)
Title: Portable triangular road warning sign - has tubular base frame which may be filled with ballast through port in leg or by removing rubber cap on foot
Inventor: ENGELMANN JOACHIM
IPC: B60Q7/00
Filed: 1976-08-18
Abstract: The warning triangle is mounted on a tabular frame with at least three feet pointing downwards. The frame can be filled with sand or water ballast via a filling port (13) in the side of the frame near the feet. or via the feet, after the rubber caps (9) are removed. The triangle is supported on the frame by clips (5) the frame tube having a square cross-section with chamfered edges.
Patent DE-2640367-A1 (DE)
Title: Transferable stone crusher plant - consists of two mobile self contained functional units transferred separately by same transport vehicle
Inventor: MUELLER GUENTHER DIPL ING
IPC: B02C21/02
Filed: 1976-09-08
Abstract: The mobile crusher plant consists of two self-contained units which can be moved separately by the same traction vehicle. One unit comprises feed hopper /2/ and feed conveyer belt /3/ mounted on a chassis with a U-shaped main frame and fitted with four sets of tyres which swivel around vertical king pins and have built-in hydraulic lifting cylinders. These retract when the unit is in situ and the chassis rests firmly on the ground. The other unit comprises crusher /4/ and transfer conveyer /4/ mounted on a chassis of a design as the hopper unit.
Patent DE-2642104-A1 (DE)
Title: Flexible tunnel lining system - uses curved segments with gaps between them and connections through resilient edges
IPC: E21D11/38
Filed: 1976-09-18
Abstract: A tunnel lining consists of segments (1), curved to match the shape of the tunnel wall, designed to accommodate irregularities in the tunnel face. The edge of each segment is shaped to leave a space (3) between itself and the adjacent segments of a row. The raised edges all round have longitudinal sections (4) which are sufficiently short to permit packing pieces (12) to be inserted. The vertical edges (6) are flexible and have a central abutment zone (2) which interrupts the gap, and at which point securing devices are fitted. This allows the segments to be sufficiently flexibly connected.
Patent DE-2642360-A1 (DE)
Title: Plastics-insulated, heavy-duty, power cable - is extrusion-coated with polypropylene polyethylene compsn. applied under closely controlled processing conditions
Inventor: WANNINK ALFRED
IPC: B29C48/875
Filed: 1976-09-21
Abstract: Mfr. of a plastics-insulated, heavy-duty, power cable, comprises extrusion-coating the conductor with an insulation contg. polypropylene, and cooling. An insulating compsn. is used which has a major portion of polypropylene and a minor portion of polyethylene and/or ethylene copolymer. The compsn. is applied under conditions of supply, plasticising, compounding and discharge temp. that prevent the max. MFI of 0.65g/10 min (measured according to DIN 53735) at 190 degrees C and under 2.16kg load, from being exceeded. This processing control is achieved using an extruder screw having a suitably dimensioned zone at 250-300 degrees C and applying a temp. profile that rises in controlled manner. from the feed-in zone to beyond the plasticising zone. Subsequent cooling is effected in at least 2 different temp. stages and/or by cooling media. The insulation is thermally stable whilst still in uncrosslinked state. The resulting coated cable can be readily wound onto reels or corded together. The coating has good low-temp. resistance.
Patent DE-2648921-A1 (DE)
Title: Single crystal growth system - using crucible support on phosphorus stock calculated to keep crystal growth front level constant
Inventor: GILLESSEN KLAUS DR ING
IPC: C30B11/06
Filed: 1976-10-28
Abstract: Single semiconductor crystal can be grown from a melt of a first component in a crucible and from vapours of a second component in a reservoir below the crucible which diffuse into the surface of the melt. The crucible rests with a bottom mount on the stock of the second component. The level redn. of this stock is made equal to the growth rate of the single crystal by suitable dimensioning so that the crystal growth front remains stationary. Arrangement ensures that the crystal grows always at the same temp. The doping of the crystal is now more uniform and single crystals of greater length can be grown.
Patent DE-2654032-A1 (DE)
Title: Coil winder with coil formers mounted in row - has support shaft producing rotation effect motion to guide by swivel and shifting motion
Inventor: DIETZ DITMAR ING GRAD
IPC: H01F41/09
Filed: 1976-11-25
Abstract: The coil winder, has a number of bobbins mounted in a row and has the wire supplied to each from separate supply rollers. The wires are in parallel and the bobbins are mounted on a common platform with the appropriate number of guides. The guides are reciprocated in synchronism between two stops. The support is in the form of a shaft, with its axis at right angles to the axes of rotation of the bobbins. It can swivel between two setting positions. The end of the guide closest to the bobbins is tubular. The support shaft which can be hollow is coupled to a step motor. The swivel and sliding motion of the shaft will produce a rotary motion of the guide.
Patent DE-2701503-A1 (DE)
Title: Fault current protective switch - is opened when not all conductors are correctly connected to switch terminals
Inventor: LAUERER FRIEDRICH DIPL ING
IPC: H02H3/347
Filed: 1977-01-15
Abstract: The middle or the neutral conductor is used as protective conductor, and its terminal lies pref. between the switch contact on the mains side, and following it a sum current transformer or electric lock. A switch is opened when voltage between the middle, neutral or protective conductor and one of the outer conductors is appreciably greater than the nominal voltage between an outer conductor and earth. The fault current switch opens when one or two outer conductors, and the middle or neutral conductor, are correctly connected to the fault current switch terminals, and the protective conductor branching off from the middle conductor does not pass through its own transformer. The transformers secondary winding directly trips the switch through a trip coil, or indirectly through the sum current transformer, when the protective conductor current exceeds a threshold, pref. still in a not dangerous range.
Patent DE-2705465-A1 (DE)
Title: Vehicle seat belt for adjustable seat - has tunnel mounted rail engaged by locking system mounted on seat frame
Inventor: HEYNE EBERHARD ING GRAD
IPC: B60R22/26
Filed: 1977-02-10
Abstract: A vehicle safety belt has an anchoring arrangement which ensures that the essential connecting element between the seat belt lock and car body is safely in place after every adjustment of the position of the sliding seat. The rail (14) bolted to the cardan tunnel (16) is of Z section and has holes (50) for seat position adjustment. On the vertical leg (36) of the Z section is the gliding part (18) welded on the seat frame (4) with forked ends (30, 32). The seat frame (4) carries also a bracket (56) with a spring loaded arm (62) operated by turning movement of a spindle (60). By swivelling, the arm bolt (52) is withdrawn from the holes in rail (36) and fork (30, 32) to slide the seat for adjustment.
Patent DE-2706234-A1 (DE)
Title: Perforated paper tearing aid system - increases degree of weakening towards paper edges
Inventor: RIEDEL ERICH O ING GRAD
IPC: A47K10/16
Filed: 1977-02-15
Abstract: The system aids tearing of perforated paper, whose surface is divided into sheets by weakening the cross-section. The degree of weakening increases towards one or both of the paper edges. This can be effected by increasing the dia. of the holes (11) towards the edges, or decreasing the interval (15) between them. The paper can have an unweakened zone for pulling. Weakening can alternatively be achieved by recesses in the paper, whose depth increases towards the edges, along a tear line. The system allows tearing off easily by one hand.
Patent DE-2708467-A1 (DE)
Title: Easily demoulded thermoplastic aromatic polycarbonate - contg. phenolic ester of higher aliphatic carboxylic acid
Inventor: ADELMANN SIEGFRIED DIPL CHEM D
IPC: C08K5/105
Filed: 1977-02-26
Abstract: A thermoplastic moulding compsn. contains (a) an aromatic polycarbonate based on aromatic OH cpds., and (b) 0.01-0.5 (0.05-0.1)wt. % of an ester or (i) 10-20C satd. aliphatic carboxylic acids and (ii) aromatic OH cpds. with 1-6 OH gps. The compsns. are easily removed from the mould. The properties, e.g. the transparency and colour, of the polycarbonate are not affected, even after exposure to 130 degrees C for >300 hours. Smaller amts. of the phenol ester are needed. De-moulding can be carried out at a wide range of temps., and short moulding cycles are possible.
Patent DE-2714888-A1 (DE)
Title: Time multiplexed data switching system - introduces phase shifts for different data transfer rates to increase transfer capacity
Inventor: SCHAFFERS WILHELM ING GRAD
IPC: H04L12/52
Filed: 1977-04-02
Abstract: The time multiplexed switching system (1) transfers messages in a synchronised data network independently of the synchronisation. The switching system has its transfer capacity increased by introducing a phase displacement between the network synchronisation signals for the various transfer rates. The angle of this phase displacement depends on the number of transfer rates and their ratio one to another. Where this ratio is 2:1, the displacement is 180 deg. between the lower and higher rates.
Patent DE-2714895-A1 (DE)
Title: Domestic animal stable ventilation - has change pole motor which drives fan with applied motor voltage controlled by temp. sensor
Inventor: RIETH PHILIPP
IPC: F24F11/76
Filed: 1977-04-02
Abstract: The temperature dependent air flow rate regulator is used for domestic animal stables. The regulator uses electrically powered fans to give a wide range of operation. The fan is driven by a change pole motor with temperature sensor. The latter is connected to a switching circuit for changing the motor pole. Voltage applied to the motor is varied by the temperature sensor. The change pole motor is an asynchronous motor whose winding is divided into several sections.
Patent DE-2719832-A1 (DE)
Title: Louvred solar collector with blades fixed to piping system - has inner blade edges curved to form radiation traps
Inventor: JOKUBEIT WOLFGANG
IPC: F24S10/75
Filed: 1977-05-04
Abstract: A louvre-type solar collector comprises a number of inclined blades through which a piping system containing the heat-transporting fluid passes, the blades being welded in the pipe. At the inner edge, i.e., the edge removed from the incident sunlight, each blade is curved towards its neighbour thus virtually closing the gap between them and forming a pocket in which the solar energy is trapped.
Patent DE-2722870-A1 (DE)
Title: Fuel element storage pool contamination prevented by casings - to collect solid radioactive waste and hoods for accumulated gas
Inventor: PEEHS MARTIN DIPL PHYS DR
IPC: G21C19/07
Filed: 1977-05-20
Abstract: In the parent patent, each element is surrounded by a sleeve or tubular casing, capped by a lid fitted with a lifting handle. The casing is fitted with a pressure relief valve and water filling equipment. In this addn., the pressure relief valve comprises a U-tube which conducts gas accumulating below the lid of the vessel out and into the internal space of a bell above the lid. The bell is linked to the casing by pawls or other hooking devices which permit the bell to float up as gas accumulates in it but prevent it from becoming detched from the vessel. Pref. the bell also has an identical handle enabling it to be picked up by the same lifting equipment as the lid. In the Parent Patent any solid contaminated residue was prevented from entering the water in the cooling pool. In the addn., escape of gas into the water is also prevented, in that this gas is trapped in the bell or hood above the lid of the vessel.
Patent DE-2725772-A1 (DE)
Title: Omnidirectional impact absorber for bumper - has crossed link arm extending between end of telescopic damper and bumper body
Inventor: TAKATSU SUEHIRO
IPC: B60R19/26
Filed: 1977-06-07
Abstract: The car bumper is mounted on impact absorbing telescopic dampers (B) using special crossed support levers (3) whose outer ends are attached two places on the bumper, by pivot points. The inner ends of the levers are pivotted on a T-shaped extension of the damper. The T-shaped extension can tilt slightly and translates any off centre impact into a longitudinal displacement of the damper. The damper is designed as an impact absorbing device with a non-return ratchet.
Patent DE-2726961-A1 (DE)
Title: Roller skate with foot operated drive - uses drive unit which consists of see=saw connected to band drawn off from axle against spring tension
Inventor: SCHMIDT ADOLF
IPC: A63C17/12
Filed: 1977-06-15
Abstract: The roller skate has a drive for the rollers actuated by a movement of the foot. The roller drive is actuated by the change of weight from heel to toe arising during normal walking movement. The roller skate is equipped with a see-saw used as the base for the foot (20) which is coupled to the driven roller or rollers by the roller drive. The latter consists of a pull device in the form of a flat band which is drawn off against spring pressure from the driven roller shaft.
Patent DE-2727412-A1 (DE)
Title: Fireproof ornamental stretched ceiling cladding - comprises stretched fibre-glass network of mesh hung across ceiling
Inventor: GEMUENDEN OTTO
IPC: B44C7/02
Filed: 1977-06-18
Abstract: The stretched false ceiling covering or cladding, as used for making a matt white painted ceiling more attractive and also for concealing electric service fittings, heating pipes, water pipes and other services from view, is in the form of a mesh made of glass fibre units woven in a network configuration. The network can incorporate quadrilateral mesh pieces, and the entire covering may be reinforced by a looped strip at the edges from which it is to be suspended. Reinforced loops with rings may be let into these, pref. with upward facing retainer pins at intervals corresponding to those for the loops, and attached hoods for protection from slippage of the covering which is made of woven fibre glass, and completely fireproof.
Patent DE-2727898-A1 (DE)
Title: Telephone line operational test circuit - simultaneously closes auxiliary switch and line closure switch and forms circuit including code receiver
Inventor: OBERHAUSER WALTER DIPL ING
IPC: H04Q3/00
Filed: 1977-06-21
Abstract: A telephone system has a circuit for testing the operational condition of the signal transmission line. For testing the operational condition of a current path in the switch (F) for feeding a direct voltage to the line, and more specifically for testing the operational condition of auxiliary switches (P) that effect the reversal of the direct voltage fed to the line, the auxiliary switch (P) and a switch (y) that effects closure of the line are simultaneously closed. The testing system forms within the first-mentioned switch (F) a circuit that extends from the terminals of a direct voltage source that supplies the direct voltage, via the code receiver (A), the auxiliary switch means (P) and a line closing resistor (W2).