baber/WOPTO huggingface dataset:
Patent DE-2903341-A1 (DE)
Title: Fast switching circuit for inductive load - has thyristor as load switch controlled by two transistors and diode network
Inventor: KRUMPE ALFRED DIPL ING
IPC: H01F7/18
Filed: 1979-01-29
Abstract: The switching circuit has the supply voltage of the load generated by a push-pull rectifier and switched via a thyristor between the load and the centre point of the push-pull winding. The voltage used for fast excitation of the load is generated by a rectifier bridge and passed to a capacitor whose positive pole is connected via a pnp transistor to the positive pole of the push-pull rectifier at the same time as the thyristor is turned on and for the duration of turn-on. The negative pole of the capacitor is connected to the thyristor anode via an npn transistor. The fast excitation voltage is applied briefly to turn off the thyristor for de-exciting the load. Current from the load flows back via return diodes to the excitation capacitor.
Patent DE-2903896-A1 (DE)
Title: Two part electrical connector with earthing strip - has insulating projections on one half for separating strip contacts from socket contacts when halves are mated
Inventor: ARNOLD DIETMAR
IPC: H01R13/703
Filed: 1979-02-01
Abstract: The connector has a first half comprising insulating fingers (9) and projecting metal contacts (5) in two parallel metal contacts (5) in two parallel lines. A second half contains metal spring-finger sockets (14) for the first half's contacts and a second row of sockets (19) for the first half's insulating fingers. A second row of spring contacts (21) is formed by a metal strip (20) running along inside the second half and and with its contacts seated in the second row of sockets. These second sparing contacts are also accessible through windows (17) in the side of the second half. When the connectors are separated the second spring contact row makes contact with the socket contacts for earthing purposes. When the connectors are mated the insulating fingers separate the contacts.
Patent DE-2911969-A1 (DE)
Title: Folding method for box cut=outs - uses element guided sideways to cut=out and moved forward synchronously swivelling inwards during forward movement and then lifted off
Inventor: GRAU ERNST
IPC: B31B50/56
Filed: 1979-03-27
Abstract: The method is used for folding, folding box cutouts made from heavy corrugated board. The continuously supplied cutouts are positioned at pre-set distances from each other and are folded inwards by a predetermined angle parallel to the coordinated side border edge. The section of the individual cutouts to be folded inwards is in each case gripped at about the centre by a folding element which grips it which is guided sideway on to the appropriate cutouts and which is then moved forwards synchronised with the forward movement of the cutout. The folding element is continuously swivelled inwards during its forward movement and subsequently again lifted away from he folded cutout.
Patent DE-2912598-A1 (DE)
Title: Trackless vehicle guidance control system - uses inductive sensing and has conductor dividing into two branches having coupled contacts for steering vehicle
Inventor: AUKSUTAT GUENTER DIPL ING
IPC: G05D1/02
Filed: 1979-03-29
Abstract: An automatic guidance control system for trackless vehicles uses inductive sensor signals based upon a conductor inset into the ground surface. A facility is included to allow a change in direction at a junction. At the junction the conductor (1) divides into two branch paths (2, 3). Coupled contacts (4a, 4b) are located within the branch paths, such that one is open when the other is closed. An interconnecting line (7) prevents disturbance effects from causing malfunction. With one contact closed the current flows through path. On board sensing coils detect the difference to control the vehicle steering gear.
Patent DE-2920057-A1 (DE)
Title: Internally-finned boiler tube - consists of strips with offset lugs welded together
Inventor: HEIM KURT
IPC: F28F1/10
Filed: 1979-05-18
Abstract: The internally-finned tube is for boilers which are heated by gas or oil under pressure. The tube comprises a number of finned strips welded together along their lengthwise edges. Each of the finned strips has a lug whose thickness is that of the tube wall and whose width half the fin pitch. One at least of the lugs (4, 5) on each strip is formed on the adjacent fin (3), and offset for the thickness of the other lug with which it engages.
Patent DE-2931194-A1 (DE)
Title: Rotary hot embossing machine - has shaft driven in synchronism with packing strip driving die cylinder by chain
Inventor: SCHNEIDER GEORG WUERZBURG
IPC: B41F19/06
Filed: 1979-08-01
Abstract: The rotary hot-embossing machine has die and pressure cylinders driven by a packing machine and a sheet of hot-embossing material moved intermittently. One die of the die cylinder is heated, and the sheet, together with one of packing material, is moved between the cylinders. A shaft (3), driven in synchronism with the packing material strip to be embossed, is mounted in a main plate (1) and coupled to a gear (8). A second gear meshing with the first swings round the shaft and is coupled to a driving sprocket (24) for an endless chain (25) providing a non-slip drive via a second sprocket (39) to the die cylinder (49).
Patent DE-2932419-A1 (DE)
Title: Active filter circuit using simulated inductance - is provided by switched capacitors and operational amplifier and allows simultaneous signal transfer in both directions
Inventor: NOSSEK JOSEF DIPL ING
IPC: H03H19/00
Filed: 1979-08-09
Abstract: The circuit uses controlled switches (S13,S16,S23) capacitors (14,15,16) and an operational amplifier (10), with a feedback capacitor (14) between its output (13) and its inverting input (11), the non-inverting input (12) being earthed. The inverting input (11) of the operational amplifier (10) is coupled via a switch (S13) to a node point (19) connected to earth via a capcitor (16) and to a second node point (20) by a second switch (S14). This node point (20) is also connected to earth via a capacitor (15) and to the inverting input (11) of the operational amplifier (10) and to its output (13), via two further switches. A final switch (S23) couples the second node point (20) to the circuit input (17), the first and final switches (S13,S23) are closed simultaneously and the remaining switches (S14,S15,S16) are closed one after the other.
Patent DE-2949903-A1 (DE)
Title: Hydrogasification of coal - with hydrogen generated in two separate gasification zones
Inventor: FLESCH WILHELM DR
IPC: C10J3/54
Filed: 1979-12-12
Abstract: Prodn. of high-Btu gas is carried out by subjecting coal to hydrogasification in a fluidised-bed gasification zone (W) at atmospheric or elevated pressure using H2-contg. gases produced by gasifying solid fuels in a fixed-bed gasification zone (F) associated with zone W and in a fines gasification zone (S) located downstream of zone W. More specifically, zone F is connected to the bottom of zone W, and zone S is connected to the side of zone W. The process allows coal feeds with a broad particle-size range to be gasified, since oversize particles from zone W are gasified in zone F and recycled fines are gasified in zone S.
Patent DE-2951552-A1 (DE)
Title: Yarn-lap preventer for traverse-drum of winding head - monitors synchronisation of yarn traverse with drum revolutions
Inventor: GOETSCHES PETER
IPC: B65H63/00
Filed: 1979-12-21
Abstract: A knock-off mechanism for the prevention of yarn laps on the traverse drum of a winding head has a detector which compares the traverse width of the yarn with the rotation speed of the traverse drum and stops winding if the traverse frequency is interrupted for several successive revolutions of the drum. A photoelectric device monitors the traverse angle of the yarn, and a Hall generator monitors the rotation of the drum. Each device produces a series of pulses which are compared for synchrony by a logic circuit. The mechanism is reliable and sensitive enough to prevent the formation of large laps, but is not responsive to spurious indications caused by transient disturbances.
Patent DE-2951619-A1 (DE)
Title: Headlight for motor vehicle - has reflector retained by spring hooks on outer ring fixed to casing
Inventor: KRAUSE BERND
IPC: F21V15/04
Filed: 1979-12-21
Abstract: The headlight has a glass retaining ring for centering and holding a reflector. The ring is connected by screws to a casing. Springy edge zones (16,17) of the ring (12) engage over the outer edge (13') of the reflector (13) in order to hold it. The springy edge zones are diametrically opposite one another. The edge zones may be of the same material as the ring or they may be of a different material cast into the ring. The edge zones may be ratchet-like hooks with inclined guide surfaces in the region where they contact the reflector. The reflector can be fitted without the use of tools and can be so fitted and removed quickly and simply.
Patent DE-3005625-A1 (DE)
Inventor: WIPPERN GERHARD
IPC: G09F3/02
Filed: 1980-02-15
Abstract: A label strip including a carrier strip and labels adhering in series to the carrier strip by means of an adhesive layer. The label strip is for use in label printing or dispensing apparatuses, in which the carrier strip is drawn by a pull-off device progressively around a deflection device where the labels are released from the carrier strip. The labels are made from a material stiffer than paper. The side of the labels facing the carrier strip is adhesive-repellent while the side of the carrier strip facing the labels has an adhesive-retaining surface. Moreover, the adhesive layer is applied as at least one narrow band to the carrier strip so that the areas of the side of the carrier strip which come into contact with the pull-off device are adhesive-free.
Patent DE-3006905-A1 (DE)
Title: Energy absorption system for building roof - has air gap between outer skin and absorber with connection to outside air
Inventor: RITTER ALFRED DIPL CHEM DR
IPC: F24V50/00
Filed: 1980-02-23
Abstract: The absorption plant is for the recovery of heat energy from the ambient air, and for solar radiation energy, converted into heat energy on the outer skin of the building. It uses a heat transfer fluid, passing through an absorber, which is connected to the evaporator of a heat pump, and there is an insulation layer behind the absorber. An air gap (16) between the outer skin (10) and the absorber (15) is in automatic ventilation connection with the outside air. The absorber and the insulation layer (18) are separated by an additional air gap (19), which also is in connection with the outside air.
Patent DE-3007588-A1 (DE)
IPC: B65B43/26
Filed: 1980-02-28
Abstract: Apparatus for opening the filling openings of bags connected together in the manner of a band. The apparatus includes two conveyor belts between which the opening edges of the bags are guided and each of which is guided around at least one compensating roller displaceable in the direction of movement of the bags. A spreader arrangement engages between the opening edges of the bags and comprises two flexible elements each fixedly mounted at one end and displaceable at the other end, and which together with the associated conveyor belts grip the opening edges of the respective bag and are displaceable in an outward direction by adjuster means for the purpose of forming a filling opening. A rotary member is arranged above at least one of the opening edges of the filling opening substantially parallel to the direction of movement of the bag and is driven in opposition to the filling direction of the filling material.
Patent DE-3007988-A1 (DE)
Inventor: WISCHNIEWSKI MARTIN ING GRAD
IPC: B01J19/28
Filed: 1980-03-01
Abstract: 1. Rotary drum for the transformation of alkaline orthophosphates into tripolyphosphates, particularly for the production of sodium tripolyphosphate of phase II, by means of a stream of hot gas, particularly in parallel flow, with several zones of treatment (A, B, C, D, E), of which at least the initial zone (A) is equipped with blades, characterized by the blades (8) of the initial zone (A) being designed as conveyor blades, that an intermediate zone (B) is equipped with an internal showering system (9) and that an end zone (E) has an extended diameter and is equipped with turning blades (10).
Patent DE-3012095-A1 (DE)
Title: Electrical cutting of long articles e.g. pipes rods, cables - at predetermined weakened point by short high electrical surge to melt remaining material of section
Inventor: GUENTHER ROLF-JUERGEN DIPL ING
IPC: B23K11/22
Filed: 1980-03-28
Abstract: At the predetermined cutting point the cross-section of the workpiece is reduced and the workpiece is introduced into a region bounded by electrodes; it passes continuously through this region, while simultaneously a high current surge of short duration is passed through it via the electrodes by a limit switch operated by the workpiece. Pref the cross-sectional reduction in the workpiece is produced by punching out or stamping out (6). It may also be produced by notches. The material is melted or evaporated at the electrical cutting operation and therefore no special precautions for removing the metal are required.
Patent DE-3016846-A1 (DE)
Title: Dental appts. with instruments table column - has slewing arm near floor with vertical portion accommodating upper arm
Inventor: SAUPE MARTIN DIPL ING
IPC: A61G15/14
Filed: 1980-05-02
Abstract: The dental appts. has a column supporting an instrument table adjustable for height. An upper arm slewing on a first axis on the column supports the table at the other end, while a lower one is coupled via a vertical slewing axis pin at its outer end to a column base fixed alongside the chair at the footrest end. This second slewing joint (G2) is situated near the floor and close to the footrest end of the chair (12). The lower slewing arm (5) has a horizontal portion (15) near the ground and joined at the end furthest from the second joint to the upper arm (4) via a vertical portion (14). It also has two portions of different lengths, the shorter one (17) being of length such that the longer one (16) can be swung parallel to the footrest end of the chair and in front of it.
Patent DE-3018276-A1 (DE)
Title: Multi storey sectioned concrete house building - involves lost formwork assembled from prefab. light concrete slabs
Inventor: ROSENDAHL WALTER
IPC: E04B2/86
Filed: 1980-05-13
Abstract: Costs are reduced in a process for erecting external walls and floor ceilings in house construction, on a sectioned storey system. Use is made of prefabricated slabs of light concrete, assembled to serve as lost formwork, cast with ceiling concrete. Corner frames with wire cages can be provided. Use can also be made of corner columns, of ceiling concrete, passing right through from foundations to roof. This overcomes problems of accurate dimensioning of components, and simplifies provision of heat and sound insulation. There is no need for use of heavy cranes, esp. in areas where access is difficult.
Patent DE-3024997-A1 (DE)
Inventor: EMDE WILHELM VON DER PROF DR I
IPC: C02F3/10
Filed: 1980-07-02
Abstract: The waste treatment plant for the biological purification of waste water with organic impurities has a fixed bed reactor (8) which consists of particulate material and acts as surface for the adhesion of anaerobic microorganisms and through which waste water flows. In order to be able to remove the sludge which forms during the purification relatively easily from the tank (2), the material in the fixed bed reactor (8) is chosen to be lighter than water so that the fixed bed reactor (8) floats. The chamber (1) acts as pretreatment tank, and the pretreated waste water enters the tank (2) via the immersion pipe (7). <IMAGE>
Patent DE-3033665-A1 (DE)
Title: Dish grinder for e.g. coal, ore or grain - has feed assembly in form of tube leading from hopper to point closely above grinding table
Inventor: WEDEL KARL VON DIPL ING
IPC: B02C15/00
Filed: 1980-09-06
Abstract: The feed assembly of the dish grinder handling coal, ore, grain or similar materials, consists of a hopper (1) with a slide gate (5) on its lower tapered end (11). The outlet end of the slide gate carries a feed tube (4) which extends into the casing (62) of the grinder and terminates with a diverging cross section feed outlet (7) closely above the grinding table (60). The tube can be fitted either with a telescopic device (8) allowing height adjustment of the outlet opening (41), or it can be fitted to the hopper via a length of flexible hose, allowing deviation of the tube from the exact vertical axis.
Patent DE-3035411-A1 (DE)
Title: Fire retarding glazed partition wall - has heat resistant cover joined to parallel mutually movable metal frame supports
Inventor: LEININGER FRANZ
IPC: E06B5/16
Filed: 1980-09-19
Abstract: A frame to hold one or more panes of fire-protective glass is incorporated in a partition wall with fire retarding properties. The frame is made up from several parallel, interconnected metal carriers (5,6) with external surfaces connected to a cover (8,10,11,12,13) made of heat-resistant material. The connection (9) between the carriers permits them to move relative to each other in the plane of the wall. Holding elements (14) for the pane are connected to the carriers which can be hollow and pref. joined together by bolts. A decorative cover (17) can be provided on the frame.
Patent DE-3035802-A1 (DE)
Title: Residual board removal from veneer cutting machine - involves suction grabs on carrier frame swinging to=and=fro on base frame
Inventor: KETTELER OTTO ING GRAD
IPC: B27L5/00
Filed: 1980-09-23
Abstract: There is a bench which travels to and fro on a base frame, in a veneer cutting machine from which a residual board is to be removed, in the course of cutting a trunk of timber. The base frame has a carrier frame, with parallel guiding system incorporated, mounted on it so as to swivel to and fro. The carrier frame has suction grabs mounted on it, facing downwards, to grip the residual board. This enables removal to be effected without intervention by an operator, or without arduous physical labour or risk of injury, and facilitates a smooth and rapid working process.
Patent DE-3036136-A1 (DE)
Title: Telephone or supplementary equipment junction box - has wall-mountable base with interchangeable socket to allow for connection of different telecommunication equipment to phone line
IPC: H01R13/66
Filed: 1980-09-25
Abstract: The junction box is for a telephone and comprises a base which may be recessed in a wall and contains a cavity opening outwardly of the base to receive an interchangeable transfer box (40). The base has fixed terminals which are connected to telecommunication lines and also to link contacts on the inner wall of the cavity. The transfer box is a close fit in the cavity and carries coupling contacts (43) on its side walls, which contacts engage the base link contacts when the box is inserted. The coupling contacts are connected to pin contacts (48) in the box and the latter serves as a socket to receive a plug of a phone or supplementary instrument such as an automatic response unit or telecopier. The plug has contact sockets which engage the contact pins of the box. The exchangeabilityof the box allows different functional units to be connected to the communication lines.
Patent DE-3039247-A1 (DE)
Title: Pipeline overhead support with spiral spring - has load bearing cable attached to spiral spring to maintain constant restraining force to disc
Inventor: SEECK FRANK DR ING
IPC: F16L3/20
Filed: 1980-10-17
Abstract: The pipeline is supported in such a way that it can move to accommodate thermal expansion without any change in the restraining force exerted by the support. The latter consists of two side plates (1) joined by bars (2-4). The support is suspended from the upper bar (2) and the pipe is attached to the lower end of a cable (10). The upper end of the pipe carrying cable is attached to a disc (6) mounted on the middle bar (3). The latter is fitted with a spiral spring, with its outer end attached by a rod (8) to the disc. The load (P), exerted by the pipe tends to rotate the disc which in turn winds up the spring which exerts an approximately constant torque. By choosing the correct form of the disc an exactly constant torque can be achieved.
Patent DE-3039865-A1 (DE)
Title: Electrical coupling with built-in timer - has interlock pin that closes contacts when coupling is used, and activates timer
Inventor: THIELE GUENTHER DIPL ING
IPC: H01R13/713
Filed: 1980-10-22
Abstract: An electrical plug-in coupling includes a facility for maintaining a supply for a period controlled by an internal timer. The socket has coupling pins (21) together with a central interlock pin (22). The pin has a pin in the extended position when the socket is not in use. When the socket is plugged in, the interlock pin is moved to close a pair of contacts (25,26). Closure of the contacts activates a counter based timing circuit within the top housing. When the timer setting has passed, the supply is cut off.
Patent DE-3040939-A1 (DE)
Title: Exhaust heat recovery plant - has heat exchanger in chimney with forced or induced draught
Inventor: KOZIOLLEK WILHELM
IPC: F28D7/02
Filed: 1980-10-30
Abstract: The appliance is for the recovery of heat from flue gases in chimneys, hot air in ventilation systems etc. It has a tubular or similar heat exchanger (3') with a flowing exchanger medium, located in the chimney or the ventilation channel. The gases are forced or sucked through the heat exchanger and the chimney or channel by a blower, which is part of an oil or gas blower burner (1a). The heat exchanger may be connected to a flow medium or heat exchanger circuit, which forms part of a heating circuit (12,12',10), and is pref. located in the return (12,12').
Patent DE-3042431-A1 (DE)
Title: Ventilator with external rotor drive motor - has struts uniformly distributed over casing front rim periphery, with fan blades behind front wheel
Inventor: HARMSEN SIEGFRIED DR ING
IPC: F04D29/64
Filed: 1980-11-11
Abstract: The wall mounted ventilator is completely enclosed in a tubular housing. The drive motor external rotor forms the ventilator hub carrying the blades. The tubular casing one front rim carries radial inwards extending struts over its periphery, carrying a centrally mounted bearing shield for the motor stator. With the exception of the struts the tubular casing is of smooth cylindrical surface. Pref. three struts (4-6) are uniformly distributed over the rim periphery and pref. five ventilator blades (11-15) are mounted behind them. In any case, the number of struts and blades is uneven, while their ratio is not an integral number. The inner dia. of the casing (1) is less than 100 mm, preferably 73 mm plus/minus 10%. The outer dia. of the ventilator hub is in a ratio of 1:2.25 to the inner dia. of the casing.
Patent DE-3043110-A1 (DE)
Title: Power pack circuit arrangement - uses control transistor connected between two rectifier bridges
Inventor: HELSMOORTEL LUC
IPC: G05F1/577
Filed: 1980-11-14
Abstract: Circuit arrangement for a power pack with two regulated, independent, negative d.c. output voltages for each of which are provided two secondary windings of a mains transformer together with a series-connected double rectifier bridge and corresp. double control unit, arranged so that the components are designed for only small voltages w.r.t. the d.c. output voltages. The max. voltages occurring throughout the entire circuit between chosen points must be as small as possible. Thus, a drive transistor (T) is provided and has its base connected to the control output (a) of the second control unit (R2), its emitter to one point (B) driving the first regulated d.c. output voltage (U1) and collector to the positive output (D) of the second rectifier bridge (G2).