baber/WOPTO huggingface dataset:
Patent DE-2902258-A1 (DE)
Title: Attaching of drill bit to shank of large drill - uses axis-parallel bars fitting matching splines and locked with grub screws
IPC: B23B51/04
Filed: 1979-01-22
Abstract: A large diameter drill has the drill bit (1) made separate from the tubular shank (2). The drill bit has splines (13) cut in its bore which fit around matching splines on the drill shank. The drill bit is then locked with two grub screws (3). This method of attaching the drill bit to the drill shank ensures accurate alignment of the two parts. At the same time there is no risk of the two parts becoming wedged together as is the case, when a steep angled mutli-start thread is used.
Patent DE-2902453-A1 (DE)
Title: Presentation of static or dynamic figures - using designed arrangement of single and/or grouped light sources switched on and off by electronic control circuit
Inventor: LUEHRS OTTO
IPC: G09F13/00
Filed: 1979-01-19
Abstract: The representation method is for cartoon-like figures and complex images. They can be static or dynamic and are suitable for wall decoration, statues, kinetic objects and for advertising. An arrangement of light sources, e.g. LEDs incandescent gas discharge lamps, is systematically switched from an electronic control circuit so that the figure or image is observed to be either at rest or in movement, e.g. firework, puppet, bird in flight, motor cycle, sports player, or juggler. Certain light source groups can be sequentially or alternatively switched on and off. The source can be arranged as single units and groups within a framework. The light sources can be ov various colours.
Patent DE-2905426-A1 (DE)
Title: Test word for conference digital exchange - uses digital test word to test storage for constituent PCM time-multiplexed parts of conference call
Inventor: RAMBOLD THOMAS DIPL ING
IPC: H04M3/56
Filed: 1979-02-13
Abstract: The telephone exchange is a PCM TDM type, with stores which are used for writting in the incoming words on the various TDM branches and for reading out the words to the conference connections. The method involves sending PCM code words into the various switching modules of the exchange being used to connect the conference parties, and reading out the words for comparison with a standard to ensure that all branches and modules being used are storing and allocating signals to the correct time slots satisfactorily. Incoming lines (Z1) are multiplexed (MUX) onto a data highway (SMLi) and converted to linear code (NL). After conference connection the linear codes are converted (LN) to PCM data highway code (SMLe) and output from the demultiplexer (DEM) (Z1). During conference setting-up, the speech stores (SK1, SK2) of each switching module are tested using test code words from the exchange common control. (MP1, MP2 of fig 1). The test words do not carry any all routing information. The test words can be used for fault localisation should a store (SK1, SK2) prove faulty.
Patent DE-2906085-A1 (DE)
Title: Shaft cover with circular lid and frame - has triangular middle section and complementary side sections, elastically coupled
Inventor: BIEHLMEYER FRIEDRICH
IPC: E02D29/14
Filed: 1979-02-17
Abstract: The shaft or manhole cover has a circular lid caned by a frame which is anchored to the ground and has support faces and guide faces for the lid. The lid (21) has a middle section (31) and three side sections (32). The regular triangular profile of the middle section (31) and the arc section profile of each of the three equal side sections are complementary. Each joint separating the middle section (31) and a side section (32) has elastic seals which are flexible in the plane of the lid at right angles to the longitudinal extension of the seam (34). A coupling device between middle section (31) and each of the side sections has a stop and a guide between the two sections so that the side section can be adjusted with respect to the middle section.
Patent DE-2908105-A1 (DE)
Title: Connector for optical fibres with focussing elements - has optical fibre front faces in both connector parts in focal planes of respective offset focussing elements
Inventor: ZIELINSKI HANS GERD DIPL ING
IPC: G02B6/32
Filed: 1979-03-02
Abstract: The optical fibres connector enables coupling of four fibres as compared with the conventional couplers for two fibres only. They are interconnected via two focussing elements with parallel main axes, while their secondary axes lie on a common straight line. The optical fibres (6', 7') are arranged in both parts of the connector (1, 2) and have their front surfaces in the focal plane of the respective focussing element (4, 5). They are offset from their secondary axes. The corresp. optical fibres in both connector parts are offset diametrally from the secondary axis in relation to each other. The two connector parts are formed by sleeves connected to an overthrow nut (3). Each sleeve contains a focussing biconvex lens of identical focal length.
Patent DE-2909305-A1 (DE)
Title: Pressure relief flap - for nuclear buildings with filling of granular screening material discharged when open
Inventor: MARTENS ROLF ING GRAD
IPC: G21C13/06
Filed: 1979-03-09
Abstract: A pressure relief opening in partitions of nuclear reactor buildings is closed by a screening element which is designed as a hollow sheet metal wing with an eccentric pivot. In its closed position the wing is filled with a granular screening material which is prevented from falling out by a surface of the wall openings. After swinging into the open position in which the granules fall out, the wing is kept open by an interlock. In an emergency pressure relief case, only the granules are expelled and no damage can be caused to structures or to personnel.
Patent DE-2912111-A1 (DE)
Title: Resilient plastics clothes hanger - has diverging curved arms to exert even pressure when clipped at free ends
Inventor: MUSCARELLA JAMES ALLEN
IPC: A47G25/48
Filed: 1979-03-27
Abstract: The clothes hanger is made from a strip of resilient plastics (20) and folded in the middle to form two equal arms (25, 30). One of the arms (25) has an integrally formed hook (35). The two arms diverge from each other in a specially curved form. This curvature is arranged so that when the two arms are brought together and fastened one to the other by a tongue (44) and matching hole (40), the pressure exerted on a garment, clamped between the arms, is uniform along the length of the arms.
Patent DE-2917418-A1 (DE)
Title: Purification of hydrogen by expansion in turbine - allowing exhaust temp. to be below M.PT. of impurities so that these solidify inside turbine and are subsequently sepd.
Inventor: FOERG WOLFGANG DIPL PHYS
IPC: C01B3/50
Filed: 1979-04-28
Abstract: Low boiling pt. components in a mixture is purified from other higher b.pt. components by cooling and condensing out these components. This achieved by compressing and cooling the gas. The gas is then expanded in a turbine, the outlet temp. from which is below the m.pt. of the impurities or high b.pt. components. The resulting mixture is then separated. Used esp. for purifying H2. Provides a method for easy purification of highly volatile components in a mixt., removing the less volatile components.
Patent DE-2921208-A1 (DE)
Title: Self-restoring snap-action switch - has double bow leaf spring coupled to pushbutton to operate contact slide
Inventor: SPRANGER DIETER
IPC: H01H9/32
Filed: 1979-05-25
Abstract: Self-restoring snap action switch operates to make a circuit whilst pressure is maintained on the press button. The press button (1) and support (2) operate the snap spring unit (4) to move the contact slide (9) between the contact springs (11) in order to make the circuit. The contact slide (9) has an insulating section (12) and a carbon impregnated conducting zone (13). The slide (9) moves between contact springs (11) and support guides (10). The snap action spring (4) is a double bow (5, 6, 7) with the central wafer (6) held firmly by a centre support and clamp (8). One end of the double bow is held in the press button unit (1, 2), and the other end in the contact slide (9). The switch is a fast action unit with low resistance, although not as low as with metal contact material and is suitable for switching MOS circuitry.
Patent DE-2922511-A1 (DE)
Title: Abdominal injector - with barbed claws on drive tube for slip free location of injection needle
Inventor: TERAYAMA TOSHIKI
IPC: A61M25/04
Filed: 1979-05-31
Abstract: An abdominal fluid injector which is inserted into a body cavity through the bore of an endoscope consists of a drive tube which can be reciprocated manually between an outer tube and the inner injection tube, made of metal or PTFE. The drive tube has at the distal end a set of claws with barbs which can be withdrawn inside the outer tube, spread out or applied to the body tissue to produce a firm grip. The inner tube has a pointed needle which can then be pushed into the gripped tissue for the injection of the fluid. This enables the surgeon to locate the injection needle precisely at the desired spot and to pierce the tissue without any risk of slippage.
Patent DE-2923728-A1 (DE)
Inventor: KRIEGESMANN JOCHEN DIPL ING DR
IPC: C04B35/56
Filed: 1979-06-12
Abstract: The invention relates to dense shaped articles of polycrystalline alpha -silicon carbide containing from 0.1 to 0.4%, by weight, of aluminum and optionally, a small amount of nitrogen and/or phosphorus, having a homogeneous virtually single-phase microstructure. The additional constituents are substantially in the form of a solid solution in the  alpha -SiC lattice. The shaped articles are distinguished by flexural strength of at least 600 N/mm2 up to 1450 DEG  C. and low subcritical crack propagation under mechanical stress. The fracture mechanism is trans granular up to at least 1450 DEG  C. The shaped articles are manufactured by simultaneously shaping and hot pressing pulverulent  alpha -silicon carbide containing a small amount of an aluminum-containing additive, such as aluminum powder, aluminum nitride and/or aluminum phosphide, at temperatures between 1850 DEG  C. and 2300 DEG  C. under a pressure of at least 100 bar (10 MPa).
Patent DE-2926054-A1 (DE)
Title: Door communication system using blocking transistor in speech circuit - has only two wires between door unit and centralised circuit and shunt connection for loudspeaker
Inventor: WEYEL ARMIN
IPC: H04M11/02
Filed: 1979-06-28
Abstract: The system has a centralised circuit coupled to the door unit via a potential and an earth line (4,5) and incorporating a controlled amplifier. The speech circuit at the door station (6,7) includes a thyristor (15) to which the earth line is coupled via an RC element (23) and which is supplied from the call current circuit (8) via a diode. When the speech button (19) is operated the loudspeaker (18) is separated from the potential line (5), with two series resistors (16,17) between the other side of the loudspeaker (18) and the potential line (5). The operation of the speech button (19) causes the loudspeaker to be connected to the junction between the resistors (16,17) via a capacitor (20). The door opening button (22) causes the loudspeaker (18) to be shunted.
Patent DE-2933604-A1 (DE)
Title: Safety attachment for lawn mower - has slotted disc mounted on drive shaft above blade
Inventor: HETRICK GLENN C
IPC: A01D34/73
Filed: 1979-08-20
Abstract: The attachment includes a relatively larger disc mounted to drive shaft of the motor for rotating above a vertical axis and at least one cutter bar mounted diametrically across the disc on the underside. The disc diameter is substantially equal to the length of the cutter bar. Slots are provided adjacent to the leading edges of the cutter bar and impellers are provided on the upper side of the disc adjacent the slot for discharging cut grass through the side of the machine.
Patent DE-2939007-A1 (DE)
Title: Petrol filling station drainage system - has troughed continuous layered fuel resistant insulating foil below surface or forecourt
Inventor: HEIDENREICH PAUL
IPC: E04H1/12
Filed: 1979-09-26
Abstract: The petrol filling station drainage system includes oil-proof insulation in contact with the substructure, and drainage outlets are brought together in a collecting shaft and connected to the water drainage network via a petrol and oil deflector. The roadway area, next to the island for pumps, is adjoined by a water drainage duct. Underneath the filling station there is a multi-layered, continuous, fuel-resistant foil insulation system (17), in trough form, pref. laid on a layer of concrete (12,13,16). A layer (21) permeable by oil and water may be sited on top of this, and connected to the outlets (18,19). This provides an effective and economical system, even where there is only moderate surface water, because of a wide roof, or for other reasons.
Patent DE-2952012-A1 (DE)
Title: Panel edge gluing machine pressure mechanism - has scanner guiding vertically movable mounting for form roller
Inventor: RIESMEIER WILHELM ING GRAD
IPC: B27D5/00
Filed: 1979-12-22
Abstract: A pressure roller, adjustable for height, and transversely supported vertically to workpiece lateral edges, conveys and presses an edge glue-wrapping device onto passing edges of panel shaped workpieces moving on a conveyor. The roller is a form roller (5), with a peripheral outline (16) guiding the gluing device (4) in the vertical direction. It is mounted on a vertically moving guide unit (10) guided up and down by a scanning member (21) located close to the roller, for fitting against the top or bottom of workpieces (3). This enables the gluing device to be laid flush against a reference edge on individual workpieces.
Patent DE-3007546-A1 (DE)
Title: Extra pressure applied to filter press travelling bands - by belt forced into external contact with bands
Inventor: SCHULER KLAUS
IPC: B30B9/24
Filed: 1980-02-28
Abstract: Extra pressure is applied to the travelling bands in a filter press which squeeze material between them as they travel round a roller, by means of two or more resiliently mounted auxiliary rollers round which passes a belt which is pressed against the travelling bands. The necessary pressure is derived from hydraulic, mechanical or electrical forces applied to the auxiliary rollers, pref. through pivoted arms, with their one ends interconnected and the other ends attached to the roller journels. One component of the pressure acts as a tensioning force on the belt. The auxiliary roller pressure pattern can be varied, e.g. by differing pivoted arm lengths or roller wts. The "floating" mounting of the auxiliary rollers is more effective than known fixed mountings, and the assembly can readily be installed as a unit wherever desirable in the press.
Patent DE-3007905-A1 (DE)
Title: Otto engine carburettor - has constriction with conical piston to vary air flow, and fuel nozzle needle coupled to piston to vary fuel flow
Inventor: LONZICK MANFRED
IPC: F02B75/02
Filed: 1980-03-01
Abstract: The carburettor for a four-stroke engine, comprises an air intake duct (1) contg. a throttle (4) and a fuel supply line (8) with nozzle (at 6b). The throttle is formed by a conical (2a) constriction (4) in the duct (1) together with a correspondingly conical (5a) piston (5) which is movable into and out of the constriction to vary the annular cross-sectional flow area between them. The flow area of the nozzle passage varies with the position of the piston. The nozzle passage is formed between the nozzle orifice (6b) and a needle (16) which moves withthe piston to increase the fuel flow area in proportion with the air flow area.
Patent DE-3008035-A1 (DE)
Title: Synchronised sheet metal press line - changes speed of follow-up presses between limits by upper and lower on-off controller
Inventor: MORGENSTERN KARLHEINZ
IPC: B30B15/14
Filed: 1980-03-03
Abstract: A synchronised drive of a press line for forming sheet metal parts in several stages reduces the cost compared with presses operating with single stroking. The design extends the service life of the drives with the follow-up presses speed adjusted by a two-position controller's switching between a max. and min. speed limits. The switching takes place within the set limits by reference to the phase position of the main press. The deviation sensed by the controllers is monitored by a slip free loop connecting two presses with a feeler roller connected to two switches for min. and max. speed change-over.
Patent DE-3013390-A1 (DE)
Title: Pulverised fuel fired steam generating plant - is operated by recycling some cleaned flue gas to pulverisers, partially via air preheater
Inventor: REIDICK HEINZ
IPC: F23K1/04
Filed: 1980-04-05
Abstract: The operational process is intended for a steam generating plant fired with pulverised fuel with primary and secondary air preheaters, electrostatic filters, induced-draught blower and chimney. The system is sequentially arranged in the flue gas duct. It involves recycling flue gas from downstream of the blower (5) through a recirculating blower (8) to the pulverisers, either directly or via the primary air section (2a) of the preheater. Dampers (10,14) in the branches (13a,9a) to the individual pulverisers control the gas flow. Instead of a common recirculating blower, individual pressure boosting blowers may be fitted in the combined line to each pulveriser.
Patent DE-3016243-A1 (DE)
Title: Dual colour photocopier avoiding toner mixing - has separating roller and control electrode removing residual first toner from second toner
Inventor: KARASAWA SHUICHI
IPC: G03G15/01
Filed: 1980-04-26
Abstract: A colour photocopier has the two colours applied in sequence using different potentials and polarity. Any residual toner from the first process is separated out from the second toner by a control electrode and a high quality process is maintained. The excess toner from the second process drops over a separating roller charged to attract any toner particles from the first process. The roller (48) abstracts the residual toner and dorps it into a separate bin (51) for subsequent removal. The colour quality of the copier is maintained over a long period, requiring only top up for the two toner reservoirs.
Patent DE-3016690-A1 (DE)
Inventor: RAPP EUGEN
IPC: G01K3/02
Filed: 1980-04-28
Abstract: 1. A device for measurement of the level and of the average temperature of liquids in tank installations, having : a measuring tube (2) arranged vertically in the tank installation ; a first resistance element (24) which is stretched in the measuring tube (2) in the direction longitudinal to it and the end connections (28, 30) to which are led out of the measuring tube (2) ; a second resistance element (26) which is stretched in the measuring tube (2) in the directional longitudinal to it and the bottom end connection (32) to which is led out of the measuring tube (2) ; a source (40) of reference voltage, which during measurement of the level is connected to the end connections (28, 30) to the first resistance element (24) ; an electrical measuring unit (42) ; and a computer unit (48) which employs the measured level of the liquid in calculating its average temperature ; characterized in that a master-slave device (14, 15, 16) surrounding the measuring tube (2) guides in the measuring tube (2) a slider (20) which slides one sliding contact (31, 33) along each of the first and second resistance elements (24, 26), that the two sliding contacts (31, 33) are led out of the measuring tube (2), that the top end connection to the second resistance element (26) is not connected anywhere, that during measurement of the level the electrical measuring unit (42) is connected to the associated first sliding contact (31) and measures the partial voltage tapped off and for calculation of the level emits a corresponding signal to the computer unit (48) ; that during measurement of the average temperature the source (40) of reference voltage is connected across the bottom end connection (32) to the second resistance element (26) and the associated second sliding contact (33) and that the measuring unit (42) is connected between the source (40) of reference voltage and the second sliding contact (33) and measures the partial resistance tapped off from the second resistance element (26) and for calculation of the average temperature emits a corresponding signal to the computer unit (48).
Patent DE-3017320-A1 (DE)
Title: Through contacting of bilaterally metallised foil - by producing flap through shearing action
Inventor: SCHMIDT HANS JOSEF DR RER NAT
IPC: H05K3/32
Filed: 1980-05-06
Abstract: A method of producing a through contact between the metal layers on both sides of a flexible insulating foil, e.g. in the mfr. of antenna plug connectors with integrated directional coupler, uses as the foil a thin (10-20 mu) film or FEP and 35 mu thick layers of copper. A flat for bending up above the foil plane is produced by keeping the boundaries of the flap free from metal, with the metal layers overlapping the free part on alternate sides. When a small punch is applied, the flap is produced by a shearing action. Such a method is suitable even for very closely spaced conductor tracks and for small structures. The metal-free contours fix the flat position without interference by any foil distortion.
Patent DE-3017707-A1 (DE)
Inventor: BECKER UDO DR RER NAT
IPC: G01N33/86
Filed: 1980-05-08
Abstract: The present invention provides a process for the detection or determination of fibrin monomer in biological fluids, wherein the sample fluid is incubated with hydrophobic latex and the agglutination determined. The present invention also provides a reagent for the detection or determination of fibrin or fibrin monomer in biological fluids, wherein it contains hydrophobic latex.
Patent DE-3017836-A1 (DE)
Title: Spinning machine control - has double return action on material length measurement to prevent error and overrun
Inventor: KOENIG HERBERT ING GRAD
IPC: D01H13/24
Filed: 1980-05-09
Abstract: The measurement unit to determine the length of material passing through a spinning machine has a unit (5) to apply a multiple action to the return mechanism (6) to bring the step counter to the start position. The return mechanism (6) is operated twice in succession by a mechanical control (5) which doubles the return movement. An electromagnet (14) and spring-loaded cam shaft (15) has ascending and descending surfaces (16,17) to operate the return comb (7) through a slide (12) and cogs (2). Alternatively, an electronic unit multiplies the return control impulses. The impulses can be stretched to increase the impulse gap and to extend the signal, and an electronic multiplier can be combined with the timer which forms part of the blocking unit. The system prevents faults in the count mechanism so that the machine does not overrun.
Patent DE-3021694-A1 (DE)
Title: Automobile battery with zigzag plates - made of silver or silver alloy for increasing battery performance
Inventor: MUELLER E DIPL KFM
IPC: H01M4/00
Filed: 1980-06-10
Abstract: The battery plates are deformed in a zig-zag fashion to enlarge their surface area and increase the battery performance. Pref. the battery plates measure 15 x 10 cm and are 2 mm thick. They are initially formed with parallel narrow slots extending from top to bottom across their full width so that the plate is effectively divided into a number of rods each 1 mm wide. The material from which the plates are made pref. comprises silver or a silver alloy for further increasing the battery performance. The battery has a power output between two and four times that of an ordinary battery with flat plates and if silver plates are used the power output can be raised twenty times.