baber/WOPTO huggingface dataset:
Patent DE-2936965-A1 (DE)
Title: Permanent dynamic electro-acoustic transducer capsule - has plastics body with upper edge in soft iron core and bottom edge bonded to housing bottom using ultrasonic welding
Inventor: KOLBE KURT
IPC: H04R9/10
Filed: 1979-09-13
Abstract: The permanent magnet system consisting of a magnet ring (1) an upper soft iron ring plate (2), a lower soft iron ring plate (3) and a soft iron core (4), is set in a housing (6) made of plastic. In the inner space of the magnet system is a plastic body whose upper edge sits in the soft iron core (4), and whose lower edge is bonded to the bottom of the housing by ultrasonic welding. The ends of the contact pins (7) are set in cavities in the base (8) and in addition, for the purpose of linearity of the frequency response, cavities are provided, which together with the soft iron core (4), form hollows behind the membrane (11). A coil (9) for producing the vibrations is connected to the membrane (11) and has connections (10) to the ends of the connector pins (7), and a cover (13) completes the capsule.
Patent DE-2939185-A1 (DE)
Title: Roller feed transport for undeveloped film - has spring-loaded roller to maintain even light contact between film and free roller
Inventor: ZIEGLER GERHARD ING GRAD
IPC: B65H5/06
Filed: 1979-09-27
Abstract: The rollers operate with a min. of contact pressure. Single sheets of film (4) are fed from a magazine (3) between two rollers (5,6). One of the rollers (6) is freely mounted on a shaft and the other (5) is motor driven (7). The motor driven roller is supported on a shaft that slides in a slot (8) and is subjected to a spring force (9) to maintain contact with the film. Any variation in film resistance produces a corresp. variation in spring pressure. An alternative version uses an intermediate contact roller between the film and the drive roller.
Patent DE-2941998-A1 (DE)
Title: Prodn. of alkyl and glycol ester(s) from carboxylic acids - by reaction with synthesis gas using ruthenium or osmium catalyst
Inventor: KNIFTON JOHN FREDERICK
IPC: C07C69/14
Filed: 1979-10-17
Abstract: Simultaneous prodn. of alkanol esters and vicinal glycol esters comprises contacting a liq. medium contg. one or more carboxylic acids and a Ru- and/or Os-contg. catalyst with a mixt. of CO and H2 at 100-350 degrees C and >=34 atm. The carboxylic acid reactant can be an opt. substd. 1-12C aliphatic acid (esp. acetic acid). The catalyst is pref. a Ru oxide, carboxylate or halide, or a Ru complex contg. one or more phosphine, phosphite or amine ligands. The reaction mixt. can also contain a co-catalst comprising an alkali(ne earth) metal salts,a quat. ammonium salt, an iminium salt or a quat. aliphatic phosphonium salt. The co-catalyst is pref. used in an amt. of 5-15 moles per g-atom of Ru or Os. The process gives higher yields than analogous processes using Rh or Co catalysts.
Patent DE-2942443-A1 (DE)
Title: Pointer indicator with absolute and relative display capability - has numeral disc proportionally driven W.R.T. pointer and has viewing windows spaced on circle
Inventor: KRAMER GUENTER DIPL PHYS
IPC: G01P1/08
Filed: 1979-10-20
Abstract: The economical indicator for analogue values can display absolute absolute values or small variations in the indicated parameter and can be used in partic. for a logarithmic display in a ships navigation system. It is simply and quickly readable and requires only one scale to be read. An indicator (2) can be displaced from null w.r.t. a quasi-endless scale (4) by several rotations. The scale divisions are on a fixed disc (3) with viewing windows (5) spaced on a circle. Numbers (7) arranged in a further disc (6) behind the fixed disc (3) are spaced at intervals different from the distances between the windows through which they are viewed. The numeral disc (6) is driven proportionally to the indicator drive. The numbers are arranged in groups whose members differ by the value of a full scale length.
Patent DE-2951987-A1 (DE)
Inventor: HUELSER JOHANN
IPC: D06C23/02
Filed: 1979-12-22
Abstract: The pattern-shearing machine used possesses a roller table having a pattern roller (4) with a relief-like pattern (20, 21) formed in its surface, and the pattern is to be pressed through the fabric web (1), during the shearing, as a result of the adjustment of the fabric-web tension. In order to allow a deep shearing out of the pattern, the pattern roller must have a relatively small diameter. A warping or bending of the roller is unavoidable when the pattern is produced. In order to eliminate the problems arising from these inequalities of the pattern roller, the pattern roller is made flexible, so that, when it bears on supporting rollers, it can be aligned by the longitudinal pull exerted on the fabric web during the shearing. <IMAGE>
Patent DE-2952029-A1 (DE)
Title: Telescopic shaft with splined hub - has two rows of balls working in races in shaft end with movable cage
Inventor: HAEGELE GERHARD
IPC: F16C3/03
Filed: 1979-12-22
Abstract: The telescopic shaft works in an internally-splined hub and has straight axial races for ball-bearings transmitting torque and accommodated in a cage movable axially for a limited amount against spring action. There are two rows of balls in the cage (5), working in races open at both ends at the free end of the shaft, on which the cage moves axially. The force exerted on the latter by the return springs is sufficiently small for the balls always to roll in the races when there is any relative movement between the hub and the shaft from the neutral position.
Patent DE-2952773-A1 (DE)
Title: Cleaning device for lavatory pan - consists of disposable paper of cellular pieces inserted in pan and contained in pocket in lid
Inventor: SCHAU GERHARD
IPC: A47K11/10
Filed: 1979-12-31
Abstract: The cleaning arrangement for toilet pans consists of a disposable paper or cellular oval, insertion piece which collects the excrement and is flushed away with it. The insertion peice adheres to the base and sides of the pan, and is impregnated with disinfectant or perfume. A container holds the stacked up insertion pieces and consists of plastic plates joined at the edges and in shape matching the insertion pieces. The pocket-type container can be formed of the underneath side of the toilet seat lid and a plastic plate joined to it by means of an 'L'-shaped attachment.
Patent DE-3000241-A1 (DE)
Inventor: POFFO HANS-JOACHIM
IPC: E05F11/34
Filed: 1980-01-05
Abstract: 1. A telescopic position-regulating screw for a ventilator window, a ventilator hatch, a sun roof or the like mounted in a suitable aperture, the regulating screw comprising : an internally threaded (20) stationary sleeve (18) held by a support (16) fastened to the edge portion of said aperture ; a sleeve (24) turnably mounted in the stationary sleeve, being externally threaded (26) to match the latters's internal thread and being internally threaded (28) in a direction opposite to ist external thread ; and a threaded spigot (36) securable fast against rotation to the ventilator window (48) or the like and engaging the internal thread (28) of the turnable sleeve (24), characterized by a rotary button (50) mounted rotably yet fast against axial displacement on and relative to the stationary sleeve (18) and also mounted fast against rotation yet axially displacingly on the turnable sleeve (24).
Patent DE-3001246-A1 (DE)
Title: Two winged fire screen door - has central batten comprising two pieces combining to form labyrinthine joint
Inventor: PODSZUCK KARL
IPC: E06B5/16
Filed: 1980-01-15
Abstract: A central batten is optionally attachable to the upright edge of one door leaf, so as to form a double or multiple stop for the other, in a fire-protective door comprising two wings with identical leaves. It is made up from two batten pieces (8) each fastened to one door leaf. When the door is closed, a labyrinthe joint gap is formed between the batten pieces, pref. by at least a double stop. Each piece may be of angular cross-section. They may be L-sectioned profile tubes. This enables butt-ended door leaves, with boxes made up from plates and shells, to be used in double-winged, fire-screen doors.
Patent DE-3005717-A1 (DE)
Title: Photosensitive material for electrostatic copier - has charge sensitive layer with insulating outer cover charged by pressure sensitive roller electrode
Inventor: OKANO KAZUMI
IPC: G03G5/10
Filed: 1980-02-15
Abstract: The photosensitive material is for an electrostatic copier. The material comprises a photosensitive layer in which an image sensitive charge is raised by application of a pressure sensitive conducting electrode. The photosensitive layer is covered on the outer by an insulating layer. The charge raising pressure sensitive electrode is a roller or drum with a surface resistance of not less then 1013 ohms/cm when relaxed and not more than 106 ohms/cm when under a pressure of 3 kg/cm2. The design eliminates imperfections such as pinholes in the latent and reproduced images. The electrode is a high elasticity polymer impregnated with a conducting powder such as copper or stainless steel. The photosensitive material is either an oxide, sulphide or iodide of zinc, aluminium etc. The insulating outer is either polyethelene, polyester etc., or epoxy resin.
Patent DE-3011590-A1 (DE)
Title: Shaft clutch using preset angle - has screw thread increasing friction clutch pressure automatically on engagement
Inventor: VOIGT DIETER DIPL ING
IPC: F16D23/04
Filed: 1980-03-26
Abstract: The clutch couples controllably two shafts together at a predetermined angle in relation to each other. It is particularly for use between two portions of a multi-cylinder automotive engine crankshaft. A hydraulically-operated friction clutch effects initial coupling until shaft speeds are equal. Then a positive coupling secures them together at the desired relative angle. The pressure of the friction clutch is increased automatically by a wedging action as a screw thread (11) is tightened during the engagement operation.
Patent DE-3012072-A1 (DE)
Title: Pressurised hinging pipe joint - has elastic bellows between overlapping spherical-section rings on coupling flanges
Inventor: ZENN HANS-WERNER DIPL ING
IPC: F16L27/06
Filed: 1980-03-28
Abstract: The internally or externally pressurised hinge joint, movable in one plane or in all directions, is for pipes etc, having tubular coupling flanges at each end, with a component, elastic in all directions, between them. Each flange (1,2) has attached to it an externally convex spherical-section ring (10,11) concentric to the joint, and the rings overlap and are clear of each other through an angle at least equal to the maximum deflection angle of the joint from the straight position. In the space between the rings is a U-section bellows (14) of elastic material extending in the peripheral direction and also for half the amount of overlap between the rings, which it bears against, its free edges being secured to them. The internal cross-section of the bellows profile is towards the pressure load.
Patent DE-3012076-A1 (DE)
Title: Methane detector for mine - distinguishes between faults and danger states by alternate antivalent circuit and line fault detector
Inventor: MARGA WERNER
IPC: G01N33/00
Filed: 1980-03-28
Abstract: An assembly for monitoring the CH4 content in the free cross-section of a mine consists of monitors at various points in the mine, each connected to a limiting value transmitter; if the limiting value or threshold is exceeded, a coupling switch closes down the electrical plant in the mine. The limiting value transmitter is incorporated in a signal input circuit (1) supplied with a full-wave a.c. signal of an electrical line monitoring device (2) which controls the coupling switch; this limiting value transmitter is a change-over switch (10), while the signal input circuit (1) comprises two alternative circuits (11,10a, 12,14 and 11,10b, 13,14) which can be alternatively closed by the change-over switch (10). In these two alternative circuits diodes (12,13) are arranged in antivalent circuit so that in normal trouble-free operation a half-wave signal is supplied via the first circuit (10,a,12) to the signal input (1), whereas when the predetermined limiting value of CH4 is reached, an antivalent half-wave signal is supplied via the other circuit (10,b,13) to the line monitoring device (2). Used for the immediate, automatic shutting down of electrical equipment in a mine if a dangerous level of methane is detected. The arrangement ensures that this actuation is effected reliably if the limiting value of the gas is exceeded, but that it distinguishes adequately between these conditions and faults in the electrical equipment and conductors. At the same time a reliable holding current is obtained in the shutdown phase.
Patent DE-3012139-A1 (DE)
Title: High tensile, hot rolled steel plate - with very high notch toughness at sub-zero temps. in rolled state, and suitable for welding
Inventor: NAKASUGI HAJIME
IPC: C21D8/02
Filed: 1980-03-28
Abstract: Continuously cast steel slab is made with max. thickness 300 mm and compsn. 0.01-0.15% C, 0.6% max. Si, 0.5-2% Mn, 0.01-0.08% Al, 0.004% max. S, 0.0005-0.005% Ca, 0.008-0.025% Ti, 0.001-0.007% N2, rest Fe. The slab is heated to 900-1000 degrees C, esp. 950-10000 degrees C, and hot rolled to obtain a min. redn. in thickness of 60% at max. 850 degrees C with end temp. 650-750 degrees C. The slab may also contain all maxima, 0.08% Nb, 0.1% V, 2% Ni, 1% Cu, 1% Cr, 0.4% Mo. After final rolling, the steel sheet is pref. cooled at 0.2-10 degrees C/second, or may be reheated to max. Ac1.
Patent DE-3015620-A1 (DE)
Title: Capsize preventer for inflatable boat with underslung stabilisers - consists of material swelling largely in water, used as stabiliser-body for filling
Inventor: BODE REINER ING GRAD
IPC: B63B43/06
Filed: 1980-04-23
Abstract: The capsize preventer (7) is for boats partic. inflatable dinghies and liferafts. It is applied to designs of boats with one or more stabilising bodies secured to the underside of the buoyant element. A material is used for these bodies which absorbs water and in consequence expands to a large multiple of its dry volume. The bodies may consist of plates which are flat when dry. The plates are perforated to accommodate cords the length of the expanded height fixed to their undersides and that of the boat. Alternativley, where the stabilisers are bags of flexible material unfolding and filling with water, enough expansive material (10) is put into these to fill them completely when expanded.
Patent DE-3016116-A1 (DE)
Title: Water resistant step type light transmitting body - has core glass of high refractive index and specified compsn.
Inventor: IKEDA YOSHIROU
IPC: C03C13/04
Filed: 1980-04-25
Abstract: The body has a core of glass of refractive index 1.60-1.66 and compsn. 15-40 wt.% SiO2, 8-15% ZrO2, 7-12% B2O3, 30-45% BaO, 5-12% Na2O, 0-30% GeO2, 0-3% TiO2, 0-5% Al2O3, 0-5% La2O3, 0-5% MgO, 0-7% CaO, 0-7% ZnO, O-5% SrO, 0-8% Li2O, 0-10% K2O, 0-5% Rb2O and 0-8% Cs2O; with SiO2+GeO2=15-15%; ZrO2+BaO=38-50%; Na2O+Li2O+K2O+Rb2O+Cs2O=5-15% and MgO+CaO+ZnO+SrO+TiO2+Al2O3+ La2O3=0-12%. The body is a glass fibre. The core glass has excellent water resistance (160-250 hr. to loss of surface gloss for silicone coated glass in distilled water), is easily drawn, has low loss and has reduced tendency to devitrification, with expansion coefft. and viscosity readily matched to coating glass. A body having a numerical aperture of 0.50-0.69 can be provided.
Patent DE-3016656-A1 (DE)
Title: Motor vehicle headlamp avoiding undesired light dispersion - has optically inert, possibly ground disc, and spherical cap mirror
Inventor: MILLER WALTER ING GRAD
IPC: F21V7/00
Filed: 1980-04-30
Abstract: The headlamp has an optically inlet, possibly ground, glass disc in place of the usual one with ridges for eliminating undesirable light dissipation. The bifilar lamp is without the usual screen which is replaced by a perfectly spherical cap mirror. All the components, such as a parking lamp, filament support and caps are omitted, or provided with black coating. Thus, only the position relative to the focal point, and the lamp filament configuration, serve for the desired light distribution. Light beam deflection, for avoiding blinding glare, is typically obtained by the headlamp inclination. The parking lamp may be mounted in front of the mirrored sphere, operating only with the vehicle parked, or on breakdown of main filament.
Patent DE-3019501-A1 (DE)
Title: Portable temperature measurement device with built-in supply - contains, semiconductor sensor, led display and switch, in cap
Inventor: KAEFERLEIN CHRISTIAN ING GRAD
IPC: G01K1/04
Filed: 1980-05-22
Abstract: The temp. measurement device, esp. a portable type, has a built-in voltage source (16), a temp. sensor (14), esp. a semiconductor temp. sensor, and light emitting diodes (32) for temp. display. It is a convenient, reliable, accurate device with a simple read-out. It has a negligible time delay between the temp. measurement and the indication. It is applicable to temp. measurement of bodies, objects, liquids, gases etc. The device has a round housing (10) with a sealing cap (22) which is a push or screw fit. The housing contains all the components necessary for the operation of the device. The cap (22) forms the switch which turns the voltage source on or off in that it contains a push button (28) making contact with the battery (16) terminal.
Patent DE-3022378-A1 (DE)
Title: Heat pump with compressor and IC engine set - uses separator to remove component exhaust gas for use as refrigerant medium, e.g. carbon di:oxide
Inventor: SCHMIDT GERHARD ING GRAD
IPC: F25B30/02
Filed: 1980-06-14
Abstract: The heat pump with a compressor (1) driven by an internal combustion engine (2) fed from a fuel cylinder (13), has part of the exhaust gases from the combustion chamber (2) circulated through an evaporator (14) and condenser. Harmful components of the exhaust gases, such as C02, are removed by a separator (9) so that the gases can be used as a refrigerating medium. The cleaned gases are passed by a valve (12) into the compressor when required. The engine and compressor pistons are mounted on crankshafts connected by a coupling (6) and rotating inside a chamber under the two adjacent casings, a common casing containing the two compression chambers (21,22).
Patent DE-3024715-A1 (DE)
Title: Reciprocating piston impact drill - has striker with air hole between piston and spindle
Inventor: ITO KOSHICHI
IPC: B23B45/16
Filed: 1980-06-30
Abstract: The impact drill has a cylinder (3) with a hole (25) in the sidewall and a piston (16) driven to and from in the rear part. A spindle (19) slides axially in the front part and has a chuck (7) for a detachable drill bit (8) at the forward end. A striker (23) sliding in the cylinder between the piston and the spindle forms air chambers between itself and them and has an air hole between its forward end face and its sidewall. Forward piston movement generates air pressure causing the striker to hit the rear end of the spindle. The hole in the cylinder wall is forward of the impact point, being connected to the froward air chamber via the striker air hole when the striker is beyond it for a distance equal to the length of the air hole.
Patent DE-3026720-A1 (DE)
Inventor: REUTER WOLFGANG ING GRAD
IPC: F27D99/00
Filed: 1980-07-15
Abstract: The closed induction melting and casting furnace is provided with a melting chamber (2) and a casting chamber (3), between which a partition (4) with an opening (6) is situated. Mounted flush on the opening (6) from above is an inductively heatable melting crucible (7) provided with a closable bottom opening (8). Attached to the opening (6) in a gastight manner from the bottom is the casting chamber (3). Situated in this is a lifting device (15), by means of which a casting mould (18) can be attached from below in a sealed manner against the partition (4). To achieve the aim of achieving between casting mould (18) and partition (4) a reliable seal which remains intact even over a large number of castings, it is proposed to mount on the underside (19) of the partition (4), surrounding its opening (6), a closed cutting edge (20), and on the side of the cutting edge (20) facing away from the opening (6) an elastically deformable inorganic seal (26), against which the casting mould (18) can be pressed in such a manner that the cutting edge (20) penetrates into the material of the casting mould (18) and the casting mould comes to bear with its upper end face (29) against the seal (26), compressing the latter. <IMAGE>
Patent DE-3027313-A1 (DE)
Inventor: BACHMANN PETER
IPC: F16H1/00
Filed: 1980-07-18
Abstract: A pinion of a reduction gear intended for use in electronic timepieces having a stepping motor, particularly wrist watches, takes the form of a cylindrical body having an axial blind hole and two teeth milled at one end of the body. The flancs of the teeth are plane parallel surfaces. The distance between the axis of rotation of the pinion and the axis of rotation of a toothed wheel of the reduction gear is slightly less than the radius of the tip-circle of the wheel, so that the two teeth of the pinion block the wheel during the resting period of the motor. If a wheel with 60 teeth is used, it may constitute the fourth wheel in an electronic watch having hands.
Patent DE-3030291-A1 (DE)
Title: Double stop light on car front - is in form of angular bracket with glass insert, housing incandescent lamps radiating forwards and laterally
Inventor: FISCHER KARLHEINZ
IPC: B60Q1/26
Filed: 1980-08-09
Abstract: The stop light for each side of a motor vehicle front is in the form of an angular bracket (1,2) with a glass insert (3,4). It is fitted with incandescent lamps (5) radiating forwards and to both sides. The angular bracket has fastening bolts for securing to a suitable place on the motor vehicle front. The stop light incorporates a cable (7) leading to both incandescent lamps in such arrangement as to be connectable to the cable for the rear stop lights. The design provides proper warning on cross roads, road junctions and zebra road crossings for pedestrians. The lights are actuated by application of the vehicle brakes.
Patent DE-3038475-A1 (DE)
Title: Leak testing device for hollow chambers - operates reliably with hydraulic systems using manometer and liq. pressure source
Inventor: MERZ HORST
IPC: G01M3/28
Filed: 1980-10-11
Abstract: An arrangement for testing hollow chambers for sealing using a pressure source of a flowing medium operates reliably with hydraulic systems. When a valve between the pressure source and the chamber under test is closed, the chamber is connected to a manometer. The pressure source is a liquid pressure source and the manometer (11) is a liquid pressure manometer. A pressure reservoir (12) connected in parallel with the manometer is in the form of a hydropneumatic pressure reservoir. The arrangement can be used with control pistons of hydraulic cylinders or control surfaces of hydraulic valves in which the quality of the seal determines the position of the actuated device and leakage can lead to uncontrollable movement, e.g. of vehicle linkages.
Patent DE-3039085-A1 (DE)
Inventor: GOETZ NORBERT DIPL CHEM DR
IPC: C07C209/00
Filed: 1980-10-16
Abstract: Aromatic amines, in particular substituted amines, are obtained from corresponding alicyclic alcohols or ketones, in one step, by amination and dehydrogenation with ammonia in the presence of hydrogen and of a palladium catalyst which also contains zinc or cadmium.