baber/WOPTO huggingface dataset:
Patent DE-2819071-A1 (DE)
Title: Ignition system for IC engine - has ignition coil primary winding connected in separate groups of switching operations whose frequency in group is very high
Inventor: BOWEN DENNIS DAWES
IPC: F02P15/12
Filed: 1978-04-29
Abstract: The ignition coil for an IC engine has a ferrite core. There is a device for switching the ignition coil primary winding at the engine combustion intervals. It is designed to switch the primary winding repeatedly in a group or series of switching operations which proceed in cycles. The repetition frequency of the switching processes in a group has a constant value which is independent of the engine speed and much higher than any normal engine ignition frequency.
Patent DE-2822433-A1 (DE)
Title: Increasing antibacterial activity of chemotherapeutic agents - against resistant bacteria, by combination with plant growth factors, e.g. gibberellin A3
Inventor: PETERS HANS-VOLKER
IPC: C12Q1/18
Filed: 1978-05-23
Abstract: New agents for reducing or eliminating the resistance of bacteria resistant to chemotherapeutic agents contains plant growth substances in combination with the chemotherapeutic agent. Antibacterial agents for use in human and veterinary medicine. The plant growth substance considerably increases the antibacterial activity of the chemotherapeutic agent, and is itself well tolerated and free from injurious side-effects.
Patent DE-2828841-A1 (DE)
Title: Centrally controlled telephone exchange - has extra memory banks used for semi-permanent signals read cyclically in normal operation
Inventor: JUNGE UWE
IPC: H04Q3/545
Filed: 1978-06-30
Abstract: The control centre of a communications facility esp telephone exchange has two memory banks. The first is for short term operations eg making connections. The second is for both permanent information eg the mode of operation of the exchange, and semi-permanent information eg authentication codes, special services. Three further stores are envisaged, chiefly to provide a permanent record in case of electricity supply failure, but also to assist in the storage of and introduction of changes to, semi-permanent information. This enables rapid recovery after breakdown and assists in normal operations.
Patent DE-2832508-A1 (DE)
Inventor: KNUPP PIUS
IPC: B21C37/12
Filed: 1978-07-25
Abstract: A helically seamed tube (5) produced from strip material (2) in a helical tube machine is to have holes distributed over its circumference which lie on axially parallel generating lines. A tubular sleeve (7) is placed as a template on the start of the tube, which moves forward in accordance with the progressive production of the tube, the sleeve having slots (10) on its circumference with a mutual spacing corresponding to the desired hole spacings in the tube (5). As the tubular sleeve (7) rotates, the sleeve being connected to the tube (5), which rotates during manufacture, the slots (10) pass a photoelectric barrier (11) arranged on a slide (12). The slide, which is guided on a rail (13) is moved along by the front edge of the tubular sleeve (7). The strip material (2), which is drawn off from a reel (1), is passed through a perforating tool (3) before being formed in the helical tube machine to give a tube. The perforating tool (3) receives a control signal for the production of a hole from the photoelectric barrier (11) each time a slot (10) passes. <IMAGE>
Patent DE-2834747-A1 (DE)
Title: Parting tool with replaceable cutting insert - has fixed and moving holding jaws with tool driven in by wedge action
Inventor: MIHIC WLAJKO
IPC: B23B27/04
Filed: 1978-08-08
Abstract: The parting tool has a replaceable cutting tip and is clamped between two narrow jaws on the front end of the tool holder. The lower jaw forms a support for the cutting tip. The upper jaw (3) whose front part projects beyond the main part of the holder acts as the moving jaw which is locked against lateral displacement. The cutting forces assist clamping. The facing inclined edges of the opposite jaws (2, 3) converge towards the holder inner part. The upper jaws rests on the holder and clamping is obtained by the wedge action caused by driving the cutting tip (4) between the jaws .
Patent DE-2847996-A1 (DE)
Title: Error recognition and correction system using cyclic code - with coded matrix obtained by transformation matrix with direct couplings
Inventor: WAEL ADI
IPC: H03M13/17
Filed: 1978-11-06
Abstract: The system has a transformation network coupled in the input path for simplified coding via direct coupling. The code word comprises the original data word with k characters and an additional proof word with r characters, with the data word and the proof word representing the polynomial of a variable x. The information network represents an initial compound coding matrix ((T3)d) coupled to a modulo-2 adder, the output of which is coupled via a further coding matrix ((T1)) to a shift register (S) with a feedback from the latter to the other input of the modulo-2 adder.
Patent DE-2853954-A1 (DE)
Title: Compression combustion engine injection valve - has groove-like channel extending over nozzle bore entire length
Inventor: SCHMIDT HANS GEORG
IPC: F02M61/06
Filed: 1978-12-14
Abstract: The injection valve is intended particularly for a compression ignition engine with a prechamber in which the valve needle has a pin immersing into a valve nozzle base. The pin shape is such that it leaves in a defined bore section a passage between its own and the bore inner circumference as in 2809414. In order to form this passage a groovelike channel (6) is formed in the valve body (1) extending over the entire length of the nozzle bore (4). Preferably the channel is of a semi-circular shape but it may be triangular or rectangular. The depth may increase from the bore inner end to its opening.
Patent DE-2854383-A1 (DE)
Inventor: LEWALTER JUERGEN DIPL CHEM DR
IPC: H01B3/30
Filed: 1978-12-16
Abstract: A process for the production of modified polyhydantions by reacting polyglycine acid derivatives with optionally masked polyisocyanates with the addition of cyclic anhydride compounds containing at least one further functional group capable of condensation in lactones as solvents.
Patent DE-2856193-A1 (DE)
Title: Rectifier diodes assembly - comprises semiconductor diodes contacting cooling plates at both ends to ensure interconnection
IPC: H02K11/04
Filed: 1978-12-27
Abstract: Improved cooling of rectifier diodes for a.c. generators of vehicles is achieved by placing the diodes (5a,5b) on both sides of good conducting surfaces (7a,7b). The assembly of the semiconductor diodes is held by cooling plates (6a,6b,6c) and the two end contact areas of the diodes form a contracted section of the semiconductor (8) with projections (9a,9b) soldered to the cooling plates. The set of these rectifiers provides a compact unit minimising the number of interconnections required, since the cooling plates provide the link to the diodes.
Patent DE-2904360-A1 (DE)
Title: Contact point for printed circuit board testing - with hard plated nickel layer on piston and sleeve contact faces
Inventor: KRUEGER GUSTAV DIPL PHYS DR
IPC: G01R1/067
Filed: 1979-02-06
Abstract: A contact point, esp. for use as a probe when testing printed circuit boards, consists of a tubular container in which a spring loaded piston with a protruding contact point is slideably guided. Both the contact piston and the inside walls of the container along its contact with the piston are hard plated by a chemically applied nickel coating of over 800 HV (over 1000 HV) surface hardness. The hard nickel layer has pref. an admixture of phosphorus or boron. Tests have shown that this prevents fretting and raises the life to several million working strokes.
Patent DE-2907344-A1 (DE)
Title: Self-ventilating plant raising frame - is one piece moulding with hinged top opened by temp. responsive piston and cylinder
Inventor: FISCHLER KLARA
IPC: A01G9/20
Filed: 1979-02-24
Abstract: The plant raising frame made from a polycarbonate material is formed as a transparent hood (1) moulded in one piece with a swinging flap (5) over the lap which can be raised for ventilation. The material can be double walled, with ribs between. At least a part of the bottom edge (4) can be stiffened by an L or U section flange. The hood can have curved surfaces and corners. Part of the edge of the lap opening can form the hinged part of the flaps and the flap can be opened by a temperature sensitive control device (21) with members mounted at the lap opening and on the flap. The movement can be controlled by a piston and cylinder device (21).
Patent DE-2909696-A1 (DE)
Title: Spray device for filters - having split flexible sleeve which is stretched over threaded feed pipe and sealed in by screwing up conical collar
Inventor: SCHEWE HERMANN
IPC: B01D24/12
Filed: 1979-03-12
Abstract: Filter nozzle for mounting in the dividing plates of filter vessels consists of a filter head which is attached to a pipe, the lower part of which is threaded. A flexible sleeve is attached to the spray head and this extends down over the pipe. Slits are cut into its lower part. The nozzle is inserted through a hole in the filter partition. It is then fixed by means of a fixing collar which has a conical taper. This is screwed up the pipe and compresses the sleeve into the hole through the plate to create a seal. Used in bed filters esp. for water purificn. and other uses in the chemical industry. Because it is made from only two components, it is simple and cheap to mass produce.
Patent DE-2918643-A1 (DE)
Title: Internally cooled electrode - with pair of sleeves heated by direct current passage for easier advance
Inventor: PIEPER HELMUT DIPL ING
IPC: H05B3/03
Filed: 1979-05-09
Abstract: Holder for the internally cooled electrode of a glass melting furnace consists of two concentric sleeves of an oxidn. and heat resistant material such as Mo or INCONEL. They are sepd. by a sleeve of an electrically insulating ceramic material and their two rims on the fused bath side are in contact with the molten material. At the opposite end the sleeves are connected to an adjustable current supply. Such an electrode can be advanced even under very adverse conditions. The holder is functionally reliable and cools the electrode even at high specific loads. It is simple and can be used to measure the temp. at the electrode contact.
Patent DE-2919239-A1 (DE)
Title: Stackable step used for goods display - is made from foldable material in rectangular outline and having bent-over edge surfaces
Inventor: BUTZ PAUL
IPC: B65D5/4805
Filed: 1979-05-12
Abstract: Stackable step produced from a cut out of foldable material having a rectangular outline with a base plate fitted with projecting corner posts at its corners. Edge surfaces (2) bent over at right angles downwards are linked to all edges of the base plate (1) with the step resting on them. The base plate has a number of slots (17) through which cut out surfaces project from the lower side which form separating walls on the upper side of the base plate. At least one of the edge surfaces (2) has a recess (9) at about its centre and the separating walls (5) parallel to each other are connected by a cross wall (7).
Patent DE-2920803-A1 (DE)
Title: Manually operated bessel drain valve - has ring segment forming plug turning in cylindrical housing with parallel flat external faces
Inventor: WULF GUENTER ING GRAD
IPC: F16K27/06
Filed: 1979-05-22
Abstract: The drain valve comprises a housing with an opening fixed to the underside of a vessel with a drain hole. A rotary closing plug is actuated from the outside. The housing (1) is a cylinder (14), with flat parallel faces on the outside. One of these faces (15) has a bore connected to the vessel drain hole (17), while the opposite one (16) contains the drain port. The plug is formed by a segment of a ring, turned along the inside wall of the cylinder.
Patent DE-2922215-A1 (DE)
Title: Heating reactor wall made from dielectric material - using heating element with internal resistance heater and outer sheath which when coiled serves as induction heater
Inventor: STETTER WALTER
IPC: B01D7/00
Filed: 1979-05-31
Abstract: Reactor wall of induction heated system is made of dielectric material and the inner part of the reactor is heated by an external HF coil. The coil also incorporates a resistance heating element and thus forms a composite with the outer sheath and the inner elements. The sheath of the coil is connected to the HF power supply. The inner element is connected to a power heating pack. The inner coil is made from Cr-Ni while the outer sheath is a Ni-Cr-Fe alloy i.e. stainless steel. Used for heating the reactor wall of a HF Plasma reactor in the region of the HF coil esp. for making high purity Si. Allows the reactors wall to be heated which is not affected by the high frequency field from the coil.
Patent DE-2923028-A1 (DE)
Title: Removing sludge from nitriding baths - using a suction pump and passing the sludge contg. bath through a filter
Inventor: SCHNEPPE WILLI
IPC: C21D1/46
Filed: 1979-06-07
Abstract: Fine sludge, which is formed when nitriding iron and steel in a fused salt bath, is removed from the bath by taking a portion of the salt bath from the bottom of the tank by a suction pump and subjecting to filtration in a unit. The cleaned bath portion is recycled to the fused salt bath in the tank, the exit of the filter unit being located above the tank. Method eliminates the use of a bottom-operated immersion type filter and reduces salt losses.
Patent DE-2928329-A1 (DE)
Title: Fibreboard prodn. - economising in steam by returning steam from defibrator to steaming chamber and conveying material mechanically
IPC: D21B1/12
Filed: 1979-07-13
Abstract: In fibreboard prodn the fibrous mass is prepd using a steaming chamber, a defibrator, and a system to convey the material from the latter to a drier; steam fed into the steaming chamber passes through into the defibrator which has a steam outlet back to the steaming chamber. A mechanical conveyor carries the material from defibrator to drier, and all steam from the defibrator is conducted back to the chamber. The layout saves steam.
Patent DE-2930132-A1 (DE)
IPC: B05B1/08
Filed: 1979-07-25
Abstract: The nozzle head (2) which has a perforation tapering outwards, whose conical perimeter wall is provided with grooves running in the axial direction of the perforation, accommodates a closure piece (6) which is axially movable in the perforation and consists of an approximately cylindrical body having a hemispherical end (8) pointing outwards. This closure piece (6) is displaceable between an inner position, which clears the perforation, and a spray position which engages the perforation and in which it is seated evenly by a seating face on the conical perimeter wall and covers the grooves which thus form nozzle ducts. Integrally moulded on the perimeter of the closure piece (6) there is a radially projecting annular projection which has a conical peripheral surface which forms the seating face and has a conicity corresponding to the conical perimeter wall, said seating face having a length of less than 1.5 mm in the axial direction of the closure piece and being shorter than half the axial length of the conical perimeter wall. The cone angle of the conical perimeter wall is between 4 DEG  and 15 DEG . In the spray position of the closure piece (6), the latter's hemispherical end (8) projects from the plane passing through the anterior face of the nozzle head (2). The spray nozzle thus designed can be used to produce a geometrically well-defined and optimally converging liquid jet which permits effective treatment of the oral cavity with liquid.   <IMAGE>
Patent DE-2930308-A1 (DE)
Title: Light fitting for surgical theatre - has optical fibre cable of different guide parts, and has deflection mirrors in hollow guide part facing cold light source
Inventor: RIETH ALOIS ING GRAD
IPC: F21S8/00
Filed: 1979-07-26
Abstract: The light fitting has a cold light source and a separate light fitting body, coupled together by a light conductor. The latter consists of different sections, the one facing the light source (1) being in the form of a hollow light conductor with deflection mirrors (4,5). At least the part, ending in the main light fitting (9), is formed by an optical fibre conductor (7) enclosed by a tube. One deflection mirror (4) is semitransparent, passing light to at least one auxiliary light fitting (16). The light source is mounted outside the operation theatre, and the hollow conductor in this theatre and the tube enclosing the optical fibre conductor form suspensions for the light fitting. Pref. the optical fibre conductor is provided in the tube with a clearance. The hollow codncutor for the auxiliary light fitting may contain an annular mirror (12) with an aperture for passing light to an additional light fitting (19) via another hollow conductor.
Patent DE-2940263-A1 (DE)
Title: Appts. for spray coating granular materials - has agitating device and air suspension arrangement to ensure uniform mixing
Inventor: HOERNER ERNST LUDWIG DIPL ING
IPC: B01J13/04
Filed: 1979-10-04
Abstract: Granular materials such as seeds are coated by agitating them in suspension in an air stream. Warm air is supplied through supply duct (8) and regulated by flap (9). The coating material is supplied in solution or suspension through inlet (10) and spray (11). The granular material is agitated to form a central upward fountain (6) which is restrained by the upper grid (4) and falls back along the sides of the container (2) into funnel (3). The material then re-enters the central rotating vortex zone (13) and is again raised to fountain (6). The spraying phase can be followed by a drying phase during which spray.
Patent DE-2942908-A1 (DE)
Title: Folding box carton blank for bottle pack - has top wall with grooved flap folded round to form carry hole and locked inside by bottle top
Inventor: GLOEYER WOLFGANG
IPC: B65D5/46
Filed: 1979-10-24
Abstract: The carton blank with carrying handle is erected from two long folded opposing walls, as centre and top, and two cross-folded walls. The top wall (16) has a pre-punched double grooved flap (11) which is folded round the punched openings in the lower parts of the wall. On folding, the flap is held by a bottle in the centre to prevent the lid springing open. The lower layer of the cross-folded walls pref. has tongues and grooves to lock together when the box is erected. A glue strip (35) closure for the box may be formed from two superimposed strips arranged so that one passes over both opposing side edges of the top wall, and the second one only over the front edge of the wall and designed as a label etc.
Patent DE-2948328-A1 (DE)
Title: Traffic light operational test unit - has portable probe with photo electric sensors to allow timing to be compared with reference values
Inventor: SCHREINER RICHARD
IPC: G08G1/097
Filed: 1979-11-30
Abstract: The portable test facility is used to check the operation of a traffic light system with regard to sequence and timing. A test bar (1) carries three photo electric sensors (3,4,5) that are positioned to align with the red, green and amber lights of the traffic light control unit (2). An interface unit (7) allows connection via plug in cables with a control unit that has punched tape input of the correct operating sequence for the system. In built comparator units compare the timing of the measured valves with the reference valves and any differences are listed as hard copy by a printer.
Patent DE-2948514-A1 (DE)
Title: Reducing reflectivity of driving mirror - applying appropriate electrical potential to liq. crystal layer to cause shading
Inventor: AUGUSTIN GERHARD
IPC: B60R1/08
Filed: 1979-12-01
Abstract: The driving mirror is dimmed by applying electrical potential to a liq. crystal layer so that it causes a shading effect and disturbing reflective caused e.g. by following vehicles can be avoided. A potentiometer can be used to match the intensity of reflected radiation and the sensitivity of the driver's eyes. The nematic liq. crystal (1) is housed in an hermetically sealed cell formed from opposed glass plates (2). Polarisation filters (4a,4b) on the outer sides of the cell are so orientated that the polarisation directions cross and the cell is transparent when no potential is applied to the electrodes. Incident light (5) reaches the glass mirror (6) with the reflective layer (7) with the same direction of oscillation.
Patent DE-2952379-A1 (DE)
Title: Active bandstop filter with input coupled via double-t-network - connects to non-inverting input of operational amplifier acting as voltage follower
Inventor: ROHDE JOACHIM DR RER NAT
IPC: H03H11/12
Filed: 1979-12-24
Abstract: The filter has an operational amplifier and a double T network comprising resistors (R1,R2) and capacitors (C1,C2). The double T network's two series paths are between the filter's input and the non-inverting input of the amplifier and its connect the amplifier's output back to its noninverting input. A capacitor (Co) grounds the non-inverting input of the amplifier. The amplifier is a voltage follower of unity gain and has its inverting input coupled to its output. A resistor (Ro) is connected between the filter's input and the double-T network to provide an extra means of setting the response of the filter.
Patent DE-3010969-A1 (DE)
Inventor: MUELLER HORST DIPL ING
IPC: H03K3/84
Filed: 1980-03-21
Abstract: 1. A PCM-system having a transmitting section (SE) for the parallel scrambling of n binary digital signals (BS1 to BS4), which are respectivement fed to a first input of n modulo-2-adders (MO1 to MO4) whose outputs, in order to form a serial binary signal (SB), are connected to the inputs (DO to D3) of a multiplexer (MUX) and whose second inputs (EM1 to EM4) are connected to the outputs (a, c, d, g) of a scrambler (SC) which are formed by the flip-flops (K1 to K7) of a shift register (SR) provided with feed-back ; and with a receiving section (EM) which corresponds to the transmitting section (SE) and which includes a demultiplexer (DMUX) and a synchronized descrambler (DSC), characterized in that the feed-back path of the shift register contains only one modula-2-adder (MO), that in order to produce a predetermined synchronizing sequence the transmission of the binary digital signals (BS1 to BS4) is blocked, and that the flip-flops (K1 to K7) have setting inputs which are combined via a common resetting input (R) and in order that the synchonizing sequence may be produced are set by a pulse in such manner that the pseudorandom sequences emitted by the scrambler, having been combined, from the synchronizing sequence at the output of the multiplexer (MUX).
Patent DE-3012169-A1 (DE)
Title: Protein prepn. by selective enzymatic cleavage - of N-terminal protein sequence from fusion protein
Inventor: DAUM JOACHIM DR
IPC: C07K14/575
Filed: 1980-03-27
Abstract: (A) prepn. of proteins (I) comprises enzymatically cleaving the C-terminal from a fusion protein (II) with the N-terminal tetrapeptide sequence of formula (III) (Xyz is any aminoacid). Pref. the Xyz-Gly bond of (III) is selectively cleaved with a collagenase, the glycine is removed with an aminoacylproline-aminopeptidase (IV) and the proline is removed with a proline aminopeptidase. The glycine and proline removal may be effected simultaneously. Alternatively, the Gly-Pro gp. may be cleaved with a post-proline dipeptidly-aminopeptidase (V). The process can be used to prepare a desired synthetic protein (e.g. proinsulin, insulin A- or B- chain, ACTH, STH, human growth hormone, bovine prolactin) from a fusion protein obtd. from a genetically modified microorganism. The enzymatic cleavage processes cause less cleavage than the BrCN Method.