baber/WOPTO huggingface dataset:
Patent DE-2710959-A1 (DE)
Title: Service cable and pipe tunnel making machine - has core forming and lining section, mixing binder with cut material
Inventor: CRAFTON PAUL A
IPC: E21D9/12
Filed: 1977-03-12
Abstract: The machine for making a tunnel for service cables and mains pipes, has a rotary cutting head with a large number of cutters forming a tunnel of the required diameter, followed by a lining system. The cut material is mixed with e.g. a plastics binding substance, forming a lining , and also a core through which channels pass, for the cables and mains. The rear part of the machine has four helically grooved tubes (28, 29) rotated by a set of gears (18, 19) mounted behind a bend portion (25) behind the cutting head. Cut material passes through perforated plates (10, 11, 12) between the cutting head and the bend portion.
Patent DE-2710974-A1 (DE)
Title: Faulty current protective circuit breaker - has oscillation circuit with its natural frequency tuned to mechanical natural frequency of tripping element
Inventor: ZIELASKO HORST
IPC: H01H83/14
Filed: 1977-03-12
Abstract: The circuit breaker is intended as a protection against faulty pulsed currents and has a summation transformer in its output. The transformer secondary forms an oscillation circuit with a capacitor and a magnetic trip of electromagnetic and permanent magnetic effect. The oscillation circuit is tuned in such a manner that its input frequency is equal or smaller than the mechanical natural frequency of the tripping element, resulting from its response time. The inductance of the tripping element is preferably involved in the tuning of the secondary circuit.
Patent DE-2714308-A1 (DE)
Title: Appts. for circulating and aerating un-clarified liq. esp. waste water - comprising an inverted conical rotor with air and water mixing passages
Inventor: SCHADE HORST ING GRAD
IPC: B01F3/04
Filed: 1977-03-31
Abstract: Aeration appts. comprises a vertically rotatable rotor having an upwardly divergent conical body provided with liq. flow ducts through which liqs. to be aerated are drawn into the body and ejected after mixt. with air. The ducts extend outwardly from the centre of the rotor body and include a water steam ejector to incude air flow from a central air chamber. Circulation and aeration of unclarified waste waters is achieved with lower noise levels and greater efficiency.
Patent DE-2720646-A1 (DE)
Title: Cardan type shaft joint - has block open each end, slotted to hold blades on shaft ends, permitting tilting
Inventor: WEHE KLAUS
IPC: F16D3/26
Filed: 1977-05-07
Abstract: The cardan type shaft joint has coupling parts displaced axially inside a housing. The housing (7) forms a separate component with recesses (5, 6) at opposite ends. The recesses are approx. rectangular in cross-section and displaced through 90 deg.. Into them project with lateral clearance flat blades (3, 4) on the ends of the shafts (1, 2). Stops (10, 11, 12, 13) prevent the shaft ends slipping out. The recesses (5, 6) are separated from each other by a central area (18) of the housing (7), and the edges (8, 9) of the flat blades (3, 4) are rounded. The housing can be a tube with its ends pressed flat in planes displaced through 90 degrees.
Patent DE-2725308-A1 (DE)
Title: Laser imaging system producing aluminium offset plates - uses visible coherent light on emulsion contg. negative diazo prods.
Inventor: JEFFERS WILLIAM
IPC: G03F7/20
Filed: 1977-06-04
Abstract: The laser imaging system provides accurate visible images from a computer store or from a teleprinter output etc and can be used to provide printing plates e.g. Al offset plates. The subject is coated with a photosensitive emulsion containing a negative diazo prod. and the laser beam is chosen to contain no ultraviolet component. The exposure can be performed in a short time, enabling a fast turnround and simple control system to be possible. The system is a simple and economic imaging system for producing accurate plates. A simple argon ion laser can be used, and the UV component is filtered out.
Patent DE-2733628-A1 (DE)
IPC: E04G11/28
Filed: 1977-07-26
Abstract: In order to produce a reinforced-concrete structure having outer walls which are strongly curved in outline and elevation, in particular a dome (1), use is made of a climbing shuttering comprising outer (4) and inner (3) shuttering parts which are fastened on the structure (1) by means of staying elements (11, 12 and 22, respectively) and/or are braced with respect to one another by shuttering anchors (26). During concreting, the inner shuttering part (3) is suspended, in the region projecting over that part (1c) of the structure (1) which has already solidified, by means of tension members (15) which run obliquely in the region of that portion of the structure to be produced in each case. It is thus made possible to dispense with the hitherto-necessary extension of the outer shuttering part for suspending the projecting inner shuttering part. The oblique staying means can, rather, be accommodated in that region of the structure part itself in which they are concreted in. <IMAGE>
Patent DE-2733981-A1 (DE)
Title: Device for recording denture movements - has relatively movable recording plates, with writing pins on upper plate and hardenable substance on lower one facing each other
Inventor: SCHMIDSEDER ALFONS
IPC: A61C19/045
Filed: 1977-07-28
Abstract: The device comprises upper and lower base plates (1) one of which has scribing pins (3) which move in a hardenable mass retained in facing regions (4) of the other plate. The plates are secured to their respective dentures by U-shaped receptacles (2) that are removably attached to the base plates. Various releasable fastenings may be used, both mechanical andmagnetic. In use the receptacles (2) are filled with a plaster-like mass to permit fixing to the dentures. The device permits ready selection of suitably sized receptacles form a complete set.
Patent DE-2739799-A1 (DE)
Title: Master key for cylinder lock - has blank provided with longitudinal side ribs running continuously for key length
Inventor: HARTMANN GERD
IPC: E05B27/00
Filed: 1977-09-03
Abstract: The cylinder lock with a flat key is used as part of a key system. The flat side of the key can be provided with a wide variety of longitudinal ribs. Narrow edges have notches for engaging with spring loaded tumblers. The locking cylinders can be made with wide tolerances. A master key can be pushed into incompatible cylinder yet will not close it. The profile ribs (13) on opposite flat sides actuate tumblers and only one of these profile ribs is displaced. The system key (A) has all the profile ribs (13) on one side (12). The master key has on the other key flat side (14) profile ribs (15) for actuating tumblers.
Patent DE-2751897-A1 (DE)
Title: Laboratory work table - with elastomer edge protector strip around stoneware slab
Inventor: BRINKE KARL-HEINZ
IPC: A47B13/08
Filed: 1977-11-21
Abstract: Working surface for laboratory desk comprises a large ceramic slab, such as stoneware, with the corners or the whole periphery protected against mechanical damage by a prefabricated U-shaped strip, made of elastic and chemical resistant material (I). (I) is pref. rubber or plastic which is bonded to the stoneware slab by an adhesive, vulcanisation or by spraying with a material contg. a propellant. The material (I) absorbs shocks and prevents damage to the stoneware.
Patent DE-2753923-A1 (DE)
Title: Braille printing unit operating quietly at high speed - has motor driven cam roller to move levers carrying embossing pins
Inventor: KAELBERER PETER ING GRAD
IPC: B41J3/32
Filed: 1977-12-03
Abstract: All operating elements (3) for the pins are coupled to a motor-driven cam (5). There is a keyboard (4) which is connected to individually disconnectable locking parts (6) for each operating element (3) and holds them in their base position. The two-armed swivelling levers (7) of the operating elements have one arm (71) coupled to the cam (5) and the other to the embossing pins (2) which rest on the levers under spring pressure. The cam is a roller which effects an embossing action for each full rotation it executes.
Patent DE-2805132-A1 (DE)
Title: Compression ignition IC engine with swirl chamber - has sparking plug at furthest point reached by charge in swirl chamber
Inventor: BRANDSTETTER WALTER DIPL ING D
IPC: F02B19/12
Filed: 1978-02-07
Abstract: The engine has a circular swirl chamber (5) in the cylinder head with a connecting passage (6) into the cylinder. The connecting passage enters the swirl chamber tangentially. A piston (2) reciprocates in the cylinder and leaves a minimum dead space (4) above it at TDC so that most of the charge is compressed into the swirl chamber. The sparking plug (7) is in the swirl chamber. The sparking plug is placed so that ignition commences in the part of the charge which has nearly completed the circuit (5) of the swirl chamber.
Patent DE-2816810-A1 (DE)
Title: Jet membrane gas separator - with annular jets of gas to separate lighter gas from a heavier gas
Inventor: HAMEL BERNARD BASIL
IPC: B01D53/22
Filed: 1978-04-18
Abstract: Jet membrane gas separator for sepg. a lighter gas from a heavier gas in a mixture comprises a jet membrane sepg. a chamber for the gas mixture from a chamber for the gas enriched in the lighter gas. The jet membrane has annular jet orifices communicating with the gas-mixture chamber and extraction tubes at the jet orifices interconnecting the two chambers. An annular jet of gas delivered to the jet orifices is discharged into the gas-mixture chamber and the lighter gas in the mixture passes through the extraction tubes into the chamber for the gas enriched in the lighter gas. By cascading a no. of jet membrane stages a very high degree of purity for the lighter gas may be achieved.
Patent DE-2820204-A1 (DE)
Inventor: ORTLINGHAUS ADOLF
IPC: F16D59/02
Filed: 1978-05-09
Abstract: In this method, the magnetic flux of a spring pressure brake is switched off for a short period of time to prevent the armature disc (13) from sticking to the magnet body (15). The magnetic flux is then controlled as a function of the desired braking torque. The differential contact pressure which arises as a result is determined by the force of the springs (17) and the counterforce exerted on the armature disc (13) by the magnet coils. By this method, it is possible, with a commercially available, inexpensive, electromagnetically releasable spring pressure brake to vary the braking torque in accordance with the load to be braked. <IMAGE>
Patent DE-2820795-A1 (DE)
Title: Hydraulic binder contg. tempered pozzolan - with controlled particle size distribution and density, and which promotes good crushing and bending strengths
Inventor: HAURI HANS
IPC: C04B7/12
Filed: 1978-05-12
Abstract: Hydraulic binder consists of >=1 marganic binder and >=1 tempered pozzulen pref phonolite powder with a grain size distribution of 0.25 mm: 100wt%; 0.09 mm:98%; 0.063mm: 96% 0.032mm: 80% 0.02mm:60%. The binder can contain portland cement and/or lime. Pref. the tempered phonolite has a density of 2.56-2.63, 2.63. 2.6-2.62) and a tempering loss of 3-7wt%. The mixed binder can be mixed with other cements to give improved water-tightness, elasticity and resistance to chemical attack. Shrinkage is reduced.
Patent DE-2824746-A1 (DE)
Title: Connector for lattice fence sections - comprises link joints locking onto bars and clamping round bolts at holes
IPC: E04H17/14
Filed: 1978-06-06
Abstract: The device is for hinged connection two fencing lattice units, one behind the other, each comprising parallel lengthways bars, and two or more transverse bars spanning these. Use is made of two or more prefabricated link joints (4), set at an interval one above the other. In each case the link joint has force-locking units at the end away from the bolt hole, engaging a cross bar (2) and/or at least one lengthways bar (1). The adjacent lengthways bar of the second lattice unit (5) serves as hinge bolt, and the link joint is shaped to clamp round the bolt in the bolt hole area. This readily permits both flush and stepped arrangement of the lattice units.
Patent DE-2828011-A1 (DE)
Title: Prodn. of mandelic acid esters - by alcoholysis of mandelonitrile cpds. used as herbicide intermediates
Inventor: SCHWARZ HANS-HELMUT DR
IPC: C07C69/73
Filed: 1978-06-26
Abstract: Prodn. of esters of formula (I) comprises subjecting the coresp. nitriles of formula (II) to alcoholysis with an alcohol of formula (III): (R is alkyl; X is alkyl, aryl, OH, alkoxy, alogen, haloalkyl and/or NO2; n = 0-3). Alcoholysis is effected by reacting 1 mole of (II) with 3-20 (pref. 5-16) moles of (III) at 40-160 degrees C (pref. 45-100 degrees C) for 3-10 hr. in the presence of 1.8-3 (pref. 2.1-2.5) moles of HCl or =u mole of H2O and 1.2-2.j (pref. 1.3-2.2) moles of HCl. Then either (a) the reaction mixt. is worked up and the product isolated in conventional manner; or (b) NH4Cl is recovered in solid form by neutralising excess HCl with gaseous NH3, adding an opt. chlorinated aromatic hydrocarbon (IV), distilling off excess alcohol, cooling, filtering off crystalline NH4Cl and isolating (I) from the organic filtrate by distn. Cpds. (I) are intermediates, e.g. for herbicides.
Patent DE-2833680-A1 (DE)
Title: Lateral duct compressor or vacuum pump - has cooling fan impeller on shaft between external motor and internal impeller with air guided by cowls
Inventor: RIETSCHLE WERNER ING GRAD
IPC: F04D29/58
Filed: 1978-08-01
Abstract: The lateral-duct compressor or vacuum pump comprises an electric drive motor (1) whose drive shaft (6) extends into the compressor housing (2) and carries the impeller (7) at its end. Between the motor and the impeller, the shaft carries a cooling fan impeller (3). The housing may have a cowl (5) with a constant spacing from the housing wall to form an air guide duct to the fan. The compressor housing may have external cooling fins, and the fan impeller may be made of light metal with good heat conducting characteristics.
Patent DE-2846675-A1 (DE)
Inventor: KOSLAR MANFRED DIPL ING
IPC: G01R13/40
Filed: 1978-10-26
Abstract: There is disclosed a hand-held testing device for indicating different values of an electric test voltage. The testing device comprises at least one grip body adapted to be held in the hand and an electric circuit arranged therein. The grip body has a testing tip forming an input connecting point of the electric circuit adapted for receiving a test voltage and has a ground connection. The voltage divider connected between the connecting point and the ground connection has at least two ohmic resistors connected in series via a respective connector tap. Furthermore, the electric circuit has a plurality of display stages, each stage being connected to a respective connector tap of the voltage divider. Each display stage has a two-state amplifying element responsive to the voltage at the respective connector tap and has an optical display element indicating the presence of a given test voltage which is received at the connecting point. The display stages are interconnected by the outputs of the amplifying elements, such that only the amplifying element of the display stage which corresponds to the value of the given test voltage is switched on.
Patent DE-2853726-A1 (DE)
Title: Hot gas pipe length compensator - has outer cylindrical body attached to inner pipe via flexible compressible seals
Inventor: DOERING HEINZ
IPC: F16L51/00
Filed: 1978-12-13
Abstract: A flanged cylinder (1) is attached at one end to a pipeline (2), while at the other the continuation pipe (11) enters its open end. Fitted inside this end of the cylinder is a flanged insert (8). By tightening the bolts (5) passing through both flanges (3, 7) the insert is drawn into the cylinder to compress a series of seals (14, 15, 16, 17, 18, 19, 20) against a shoulder (21) in the latter. By so doing, three of the seals (15, 17, 19) in soft rubber, are expanded both against the inner wall of the cylinder (1) and the outside of the continuation pipe (11) to form a gastight joint.
Patent DE-2855747-A1 (DE)
Title: Domestic artificial sun tan apparatus - has elongated casing containing row of bulbs and foldable flat against wall on pivoting arm
Inventor: SCHROEDER GERD DIPL ING
IPC: A61N5/06
Filed: 1978-12-22
Abstract: The artificial sun tan apparatus using ultra violet or infra red lamps is for wall mounting. It consists of a hollow casing (1) housing a row of bulbs (4, 5) pointing downwards mounted on a set of adjustable fittings. These include a swinging arm (2) with a pivot spindle (6, 8) each end rotating about vertical axes (8', 6'). The spindle (6) at one end secures the casing to the arm and the spindle (8) at the other end secures the arm to a bracket (3) for wall mounting. This allows the lamp casing to fold flat against the wall. The casing can fold back either to the right or to the left of the bracket. The bulbs each side of the central vertical bulb can slope downwards at an acute angle to form a flat divergent beam. The operating buttons (10) are incorporated in the wall bracket. The design is space saving and sufficiently neat for a living room. The overhead position and elongated housing give a satisfactory coverage and good location.
Patent DE-2906669-A1 (DE)
Title: Reduction of electrical noise effects in electromechanical balances - using metallic screened twisted pair cables between cell and analyser in three pairs for power, return and measurement
Inventor: JETTER HANS DR ING
IPC: G01G3/14
Filed: 1979-02-21
Abstract: A circuit for reduction of electrical noise effects an electro-mechanical balancer is esp. for balances with earthed protection conductors and a weighing cell, esp. with a flexible rod, strain gauges and a bridge circuit, connected via cables to an evaluation unit. The reference potential of the weighing cell and/or the evaluation unit is/are isolated from the corresp. earthed protection conductor. The cables between the weighing cell and the evaluation circuit have metallic screening isolated from the protective earth conductors and are twisted pairs with approx. thirty twists per metre. There are three conductor pairs, namely power, return, and measurement signal cables, between the cell and evaluation units. At least two pairs, namely the return and measurement signal cables, are screened twisted pairs.
Patent DE-2911431-A1 (DE)
Title: Self capturing crating for livestock - can be fixed in permanently open position by lock flap and face arrangement
Inventor: HOLDERRIED FRITZ
IPC: A01K1/06
Filed: 1979-03-23
Abstract: The self-capturing grating is for livestock. It has several pivotable catch elements which are pivoted into a closing position by the animals on passing to the feed trough. They are locked in this position by a lock flap and a lock face. An operating element extends over several catch elements and carries a catch face for each catch element in the form of a lug. It can be turned to release the lock flaps of all catch elements. The catch element may be used for fixing the grating in a permanently open position. The catch element has a second lock flap, which acts with a second lock face. The two flaps and faces are opposite and the two faces are angularly transposed on the operating element.
Patent DE-2913493-A1 (DE)
Title: Semiconductor device with low capacity side wall insulation in grooves - is produced by diffusion, etching and ion implantation using single mask
Inventor: KRAFT WOLFGANG
IPC: H01L21/306
Filed: 1979-04-04
Abstract: Semiconductor device has a substrate of one conductivity type with a coating of the other conductivity type, which is divided by grooves extending to the substrate into partial layers which contain highly doped zones in contact with the substrate. The grooves (8) are lined with diffusion layers (6'), which are sepd. from one another by a zone of the opposite conductivity type to the diffusion layers (6') in the bottom of the grooves. The diffusion layers (6') are (almost) in contact with the highly doped zones (2), whilst there is a SiO2 layer (10) over the diffusion layer (6') and each sepg. zone.
Patent DE-2923381-A1 (DE)
Title: Elastomer shock absorber of determinable characteristics - has shaft guide fitting into container of variable inner dia.
Inventor: KEDZIOR JOZEF DIPL ING
IPC: F16F9/30
Filed: 1979-06-08
Abstract: The shock absorber comprises a container filled with an elastomer and a shaft in a guide to close the container. The container (1) has an alterable inner diameter where the shaft (3) guide (2) fits, the diameter being determined by a non-parallel surface straight line (6) to the lengthways axis of the chamber. Alternatively, the line can be convex or concave. The arrangement overcomes difficulties where a constant dia. in the container appertains, preventing the exact characteristics of the shock absorber from being determined.
Patent DE-2924946-A1 (DE)
Title: Electrostatic field generator for rooms - has generator mounted inside electrode on standard lamp base and may be enclosed in glass envelope
Inventor: BECKER ROBERT DR
IPC: A61N1/10
Filed: 1979-06-21
Abstract: In order to produce an electrostatic field in a room for therapeutic or environmental purposes normally requires some special permanent installation. The design comprises a simple lamp-like device which may be plugged into any standard lampholder. The entire electronic e.h.t. generator is enclosed inside the hollow radiating electrode (4,5). The whole assembly is mounted on a standard lamp base (7). It may, moreover, be enclosed in a glass envelope and include a lamp to provide illumination.
Patent DE-2926496-A1 (DE)
Title: Food drying and smoking plant - with separate air conditioning circuit through water spray condenser and smoke generator
Inventor: SCHROETER MAX ING GRAD
IPC: A23B4/052
Filed: 1979-06-30
Abstract: A plant for drying and smoking of food, such as meat and sausages, consists of a treatment chamber which is separated by a wall from an air conditioning chamber. Ducts through the wall form a closed circuit. The air conditioning chamber includes a spray water condenser which the air from the treatment chamber passes in a descending direction. Spray nozzles near the top cool the air and the water bath at the bottom is fitted with a cooler and a heater. A smoke generator can be joined to the outlet from the condenser. This is a compact space-saving plant with all components well accessible.
Patent DE-2929602-A1 (DE)
Inventor: REGEL ERIK
IPC: A01N43/64
Filed: 1979-07-21
Abstract: A triazolyl-alkene of the formula   <IMAGE>   in which R is an alkyl radical or an optionally substituted phenyl radical, R1 is a cycloalkyl radical, and R2 is a hydrogen atom, or R1 and R2 together, in the o-position relative to each other, are an optionally substituted polymethylene bridge, or, together with the phenyl ring, are naphthyl, R3 is a halogen atom or an alkyl, alkoxy or halogenoalkyl radical, n is 0, 1, 2 or 3, and X is a keto radical or a -CH(OH)-radical, or an acid addition salt or metal salt complex thereof, which possesses fungicidal activity.
Patent DE-2930855-A1 (DE)
Title: Drink holder for car - has cylindrical container with sprung support to clip into window seal
Inventor: SCHIMMELPFENNIG ANTON ALFRED
IPC: B60N3/10
Filed: 1979-07-30
Abstract: The drink holder for canned drinks in a car has a cylindrical container (1) to hold the can and with a support lip (2) from the top of the cylinder to clip into the window seal on the car door. A sprung tag (4) from the bottom of the cylinder is braced against the lip, The cylinder has vertical interior ribs (5) and bottom spacers (6) to provide a loose fit and a simple grip access. The holder is made from spring metal or plastic and is a lightweight, low cost holder to hold opened drink cans.