baber/WOPTO huggingface dataset:
Patent DE-2445813-A1 (DE)
Title: Water dispersible powder - contg. aromatic sulphonate formaldehyde condensate useful as cement and concrete additives
IPC: C08J3/05
Filed: 1974-09-25
Abstract: Powdered polymers which can be redispersed in water, contain 1-20 wt.% of at least one water soluble condensn. prod. contg. sulphonic acid- or sulphonate gps. made from a mono- or polynuclear aromatic hydrocarbon and formaldehyde. The polymer may also contain 5-50 wt.% known additives such as polyvinyl alcohol, cellulose derivs., casein, kaolin, chalk, silicates and silica. The powdered polymers which can be treated include polyvinyl acetate, polyvinylpropionate, PVC, polyvinylidenechloride, polyvinyl laurate or copolymers of these with ethylene or polyacrylates. The treatment does not cause deterioration in properties of the treated polymers; relatively small amts. of the sulphonate condensation prod. are required; prevents clumping of the powder during production and increases the storage stability of the prod. Process is esp. useful in the prodn. of additives to hydraulic cements, concrete, plaster, etc.
Patent DE-2449600-A1 (DE)
Title: Bobbin clamping release mechanism - has a torque-operated switch for bobbin stud drive motor to allow high-speed working with large bobbins
Inventor: EPPLE JOHANN
IPC: D07B7/06
Filed: 1974-10-18
Abstract: An appts. is claimed for the engagement or disengagement of bobbins in a winding or rope twisting machine, whether the bobbins be winding or unwinding, with a drive motor for the two studs supporting the bobbin. The housing for the drive motor is linked at one side by a fixed mounting to a sprung torque support and switch so that motor current is disconnected when locking torque is reached, and reconnected when the torque value drops into a preset tolerance zone. The design gives a simple construction with maintenance-free operation, which can provide the locking and release action for large bobbins operating at high speeds.
Patent DE-2449981-A1 (DE)
Title: Pressure sensitive erasable pad for writing and painting - provides clear reproduction even from fine strokes
Inventor: HEYDE RUDOLF
IPC: B43L1/12
Filed: 1974-10-22
Abstract: Pressure-sensitive erasable pad for writing and painting comprises an elastically deformable substrate which may be at least partially coloured, to the glossy side of which is applied the glossy side of a sheet of transparent or translucent film material which is bonded to the substrate on application of pressure to render the pressure points visible. The transparent film may be matt on the upper surface, and joined to the substrate along one edge. An additional filter film may be applied to the transparent film to increase the contrast between writing and background.
Patent DE-2451816-A1 (DE)
Title: Door frame of plastics hollow profiles - has hinge pocket screwed to frame which has intermediate wall
Inventor: NEUSCHAEFER-RUBE KARL-REINHARD
IPC: E05D5/02
Filed: 1974-10-31
Abstract: The door frame has hinge bands, held in a band pocket, and formed as lower double pivot bands. The pocket (4) is screwed to the door frame (1), which has an intermediate wall (6), extending parallel to the pocket. The pocket has screw-on lugs (15), extending above and below. It is screwed onto the frame via self-tapping screws (5). With a hung door, a bore in the frame allows continuous height-adjustment of the door, by giving access to the screw (11), which tensions the double pivots in the pocket. The design makes it possible to use self tapping screws to fasten the pocket to the frame not only in a central region but also in the region of the screw-on lugs.
Patent DE-2455621-A1 (DE)
Title: Automatic early intoxification warning - for waters by microphone across test section grids monitoring rheotactic fish behaviour
Inventor: MERK HANS-DIETER
IPC: G01N33/18
Filed: 1974-11-23
Abstract: Waters and effluents are tested for the presence of toxic components which may affect the fish stock by monitoring the rheotactic and photomenotactic behaviour of test fish (one-sommer carps). The test section is bounded by two test grids. Any incipient intoxification causes more frequent contacts with the rear grid which induces violent tail kicks by the fish. These kicks are monitored by a microphone; the number of pulses per unit time is a measure for the degree of damage done to the fish organism. This gives an advance warning of any incipient intoxification before any large-scale damage is done. The appliance is robust enough to be used in the field.
Patent DE-2456174-A1 (DE)
Title: Sterilisable semi-permeable membranes - of cellulose acetate or polyamide, contg. aliphatic polyhydric alcohols
Inventor: STAUDE EBERHARD DIPL CHEM DR
IPC: A61L2/20
Filed: 1974-11-28
Abstract: Semi-permeable films of cellulose acetate or polyamide, opt. contg. water are sterile and containe a polyhydric, aliphatic 2-4C alcohol. Used in medical applicns. as membranes for reverse osmosis, ultra-filtration and haemo-dialysis in artificial kidneys. The membranes can be sterilised by exposure to vacuum followed by ethylene oxide, without causing irreversible drying-out. The film contains 30-38 wt.% alcohol, esp. glycerol. The film, immediately after prepn. by casting from a cellulose acetate or polyamide soln., e.g. in acetone/formamide or dimethyl sulphoxide, is immersed in an aq. soln. of the alcohol for 2-10 mins. at 50-90 degrees C, the water then pref. removed at below 50 degrees C, the film exposed to ethylene oxide and opt. dried under sterile conditions at below 50 degrees C.
Patent DE-2457376-A1 (DE)
Title: Adaptive correction of length measurements - is for incremental sources with introduction of correcting counter pulse between successive counter pulses
Inventor: SANDULESCU GHEORGHE DIPL ING
IPC: G01B11/00
Filed: 1974-12-04
Abstract: The space measurement at the locations at which the correction is carried out is itself decoded from the value of a measured length with the aid of an adjustable decoding matrix. In these space measurements in the case when the measured part segments between the previous space measure, to which a correction had been applied and the respective present space measure, is longer than the characteristic segment - then there is introduction of a correcting impulse between successive counter pulses. The introduced impulse has a constant delay relative to the first of the two pulses between which it is introduced.
Patent DE-2458416-A1 (DE)
Title: Automatic riveting mechanism for copy sheet set - has riveting head travelling to and from working position on slide
Inventor: BOWMAN DAVID G
IPC: B27F7/38
Filed: 1974-12-10
Abstract: The machine has a riveting head with a hopper from which the rivets are fed to it (74, 75), also an anvil and hammer, and the head is mounted on a transporter slide (78) moving in and out of the working position. Hammer blows are exerted whenever the slide moves into one of the riveting positions, to secure a set of sheets together. The slide can run on a rail at the side of the vertical troughs accommodating the sheets, the head indexing between the trough in turn. The troughs can have opening base parts actuated by operating levers for each, these being interlocked with the riveting head so that the latter releases the sets of sheets before opening takes place.
Patent DE-2502539-A1 (DE)
Title: Silo vibration equipment - has cage spring-suspended from base frame in turn spring-suspended from silo
Inventor: SCHMITZ JOSEF
IPC: B65D88/66
Filed: 1975-01-23
Abstract: The equipment is for loosening material in bulk in silos with funnel-shaped outlets and comprises an elastically suspended frame with a centrally mounted shaker motor, guide vanes extending towards the outlet in a rosette pattern, and a cage comprising supporting arms, sloping walls and bars, with elastic buffers bearing against the funnel-shaped walls. The cage (12) is suspended by means of spring components (16) elastic both torsionally and in the lengthwise direction on a base frame (3). This in turn is elastically suspended in the silo (1), and carries the shaker motor and the vanes (10). The inner ends of the supporting arms (15) can be suspended by spring components (16) under the base frame, and bear against a flange on an intermediate piece (9).
Patent DE-2504137-A1 (DE)
Title: Constant current generator including differential amplifier - delivers current of either polarity through collector-emitter paths of transistors
Inventor: WINTZER KLAUS ING GRAD
IPC: G05F1/56
Filed: 1975-01-31
Abstract: Bases of transistors provided for delivery of constant currents of the same polarity are joined together. They are controlled by a differential amplifier which, when current flows through collector-emitter path of such a transistor, compares with a reference voltage the voltage drop across a resistor in series with the transistor collector-emitter path, and applies a control voltage corresponding to the difference of these voltages to the respective base bank. A resistor (R11-R1n, R21-R2n) is inserted into emitter circuit of transistors (T11-T1n, t21-T2n) delivering currents of the same polarity, and voltage drop across such a resistor (R11, R21) is compared with the above reference voltage (Uref1, Uref2) by the differential amplifier.
Patent DE-2518341-A1 (DE)
Title: Biaxially oriented two-ply thermoplastics, film laminate - mfd. by adhesively bonding two monoaxially oriented film laminae
Inventor: MATSUMOTO KENJI
IPC: B32B27/00
Filed: 1975-04-25
Abstract: Laminated foils or sheets of molecularly oriented thermoplastics have laminae of drawn foils whose resp. orientations cross one another. Pref. two monoaxially drawn foils are bonded together with the aid of melt adhesives, under tension and with avoidance of shrinking, at temps. in the thermoelastic range. The prods. have superior tensile strength and tear resistance using only two plies, whilst being free of rel. low dimensional stability of prior-art prods.
Patent DE-2532983-A1 (DE)
Title: Signalling system between main and PBX telephone exchanges - breaks voice path to prevent noise from interference with signalling
Inventor: JAEGER HORST
IPC: H04Q3/62
Filed: 1975-07-23
Abstract: The signalling system, is used for transmission of signals between a main telephone exchange and a private (branch) exchange. It prevents voice signals from distorting all types of signalling signals. 50 Hz ac is used for main signalling and AF multiple-freq. signals for secondary signalling. The transmission of each main signalling signal (HK1 to HK4) causes a break in the voice path. The secondary signalling signal that follows the main signal maintains this break for its duration. The break is removed a given time after the secondary signal and its duration can be determined by either the main or the secondary signal thereby ensuring that the path is not 'pulsed' by a rapid sequence of secondry characters etc.
Patent DE-2534215-A1 (DE)
Title: Valveless rotary gas engine - has gas channels arranged opposite in stator and rotor
Inventor: EISSFELDT WERNER
IPC: F01D1/34
Filed: 1975-07-31
Abstract: Gas pressure meter without periodically moved components where gas channels (3..... 10) are arranged opposite to each other in the stator (1) and rotor (2), that the gas flow can open the transfer point. The rotor (2) has chambers (11.... 13) connected to the gas channels. Specifically the number of channels (3.... 10) in the stator (1) and the number of chambers (11.... 13) in the rotor (2) are different. The channels (3.... 10) in the stator (1) are alternately under pressure and pressure free while the non-radial position of the gas channels (3.... 6) corresponds to the direction of the gas flow. The stator and the rotor consist of discs or cones and the contact face or contact casing between stator and rotor is set to form a very narrow gap.
Patent DE-2535047-A1 (DE)
Title: Broadband rod antenna of limited counter balance wt. - effected by including RL circuit in upper end of rod
Inventor: WINKELMANN HARTWIG DIPL ING
IPC: H01Q9/18
Filed: 1975-08-06
Abstract: The broadband rod antenna is designed so that its radiation pattern is not affected by the counter balance weight. This is achieved by damping the upper part of the rod by inserting a parallel circuit consisting of a resistor and inductor. The antenna's supply point is connected to the supply via a matching transformer with stepped wave impedance. The resistor is divided into two or more parts to ensure adequate cooling. The two or more resistance elements are connected to coaxial lines of suitable wave impedances such that a freq-independent real impedance appears in the branch parallel of the inductor.
Patent DE-2536066-A1 (DE)
Title: Transformer single piece shell lamination - has separation joints running from corners of yoke orifices to meet at centre line
Inventor: PHILBERTH BERNHARD
IPC: H01F27/245
Filed: 1975-08-13
Abstract: A single-piece shell lamination section is for the iron core of a power transformer (up to 1kVA approx.). It has a wall thickness "b" that is about 1.25 times half the tongue width f/2. The separation joints run asymmetrically from one of the corners of both apertures in the yoke. The first separation joint runs parallel to the central limb of the lamination from one corner of one aperture in the yoke, and the second joint runs from the corner of the other aperture in the yoke straight to the first separation joint which it meets at the centre line of the lamination.
Patent DE-2537049-A1 (DE)
Title: Alarm system for telephone box damage - incorporates mechanical and electrical sensors in telephone equipment, coupled to central warning station
Inventor: SIX WERNER
IPC: H04M17/02
Filed: 1975-08-20
Abstract: Damage caused by vandalism in coin operated public telephone boxes is immediately detected by suitably located sensors coupled directly to a central monitoring unit. Damage caused to the receiver, the dialling mechanism, coin box and the glass booth is sensed. Typically, the receiver contains a sensing circuit supplied with a nominal current that is interrupted in the event of damage. Contents may also be built into the dial and wire conductors into the glass panels of the booth. Both direct electrical alarm circuits connecting with a central unit and also optical/acoustic local alarm circuits are proposed.
Patent DE-2538209-A1 (DE)
Title: Fully automatic twin-spindle surface grinder - for simultaneously grinding all four sides of dovetail guides
Inventor: ANDONOV ARGIR GEORGIEV DIPL IN
IPC: B24B7/14
Filed: 1975-08-27
Abstract: A dovetail groove grinder has a stand bearing a reciprocating workpiece table two stationary columns with their upper ends connected by a cross beam, and two horizontally moving carriages on the cross beam. Attached to each carriage is a vertically moving carriage bearing a grinding head with a grind stone. The vertically moving carriages move relative to the horizontally moving carriages along guides at an angle to the table equal to the angle between the table and the bisecting line of the surfaces to be ground. At one end of the table is a housing (16) with a carriage (17) each side, moving at right angles to the table. On one (17) of these carriages are two trueing diamonds (20, 21), and on the other is a diamond roller for trueing the grindstones in a fixed position.
Patent DE-2548380-A1 (DE)
Title: Front cover for light display - made from transparent plastic with matt finish and is held by spring fixing elements
Inventor: MESSMER GUENTHER
IPC: G09F13/00
Filed: 1975-10-29
Abstract: The front cover is used for an alpha-numeric light display employing individually controlled light elements, in an office machine or electronic calculator. The cover is made from transparent plastics in the area overlying the display elements, and is given a matt finish, to cut down reflection from the cover. The cover may comprise several similar cover plates positioned next to one another so as to cover the front of the display, each of which has spring fixing elements (1....4) co-operating with retaining elements at the side or in front of the display. These fixing elements may be positioned at the corners of each front panel or cover plate and spacing elements (5....10) may extend along its upper and lower edges.
Patent DE-2550162-A1 (DE)
Title: Engine air filter clogging indicator - has vacuum-operated diaphragm releasing spring-loaded rotary indicator showing mark when released
Inventor: GENSCHPRING EDUARD MATVEEVITSC
IPC: F02M35/09
Filed: 1975-11-07
Abstract: The arrangement comprises a housing (2) divided into an upper and a lower chamber by a diaphragm (14), the lower chamber being connected with the clean air section of the air filter and the upper chamber having an observation window (12) in the wall and an indicator element (13) with indicator mark (24) and means (27) to hold the element in position in the housing. The latter means are arranged between the bottom (26) of the element and the diaphragm such that, when they are in engagement, the element is held in a position in which the mark cannot be seen. The element is rotatable under spring action (28) relative to the housing, so that when the diaphragm moves down due to excessive vacuum, the holding means (27) dis-engage, and the element rotates into position showing the mark in the window.
Patent DE-2556256-A1 (DE)
Title: Aromatic hydrocarbon modified pyrotechnic smoke compsn. - to produce smoke impenetrable by visible and infrared radiation
Inventor: KRONE UWE DIPL CHEM DR RER NAT
IPC: F41H9/06
Filed: 1975-12-13
Abstract: The pyrotechnic smoke compsn. contain C forming materials which on burning, by dispersion of a large amt. of finely divided C, absorb radiation in the near infra-red. Use of the compsns. results in the generation of smoke which is opaque to both visible light and to radiation in the near infra-red. They also have outstanding ground clinging properties. In an example a hexachlorethane/zn/ZnO smoke compsn. is modified by mixing with aromatic hydrocarbons, as well as their polymerisation, condensn. and decomposition prods. e.g. polystyrene, naphthol pitch, coal tar pitch.
Patent DE-2558662-A1 (DE)
Title: Shaft mounted hydraulic clamp - has loosely mounted ring shaped piston area with slidable chuck jaw
Inventor: KLINGEN WILLY
IPC: B23Q3/08
Filed: 1975-12-24
Abstract: The clamping arrangement consists of a chuck jaw (1) which is mounted on a shaft (3). The shaft is clamped at an angle in the main body (2) of the clamping arrangement. The chuck jaw can slide up and down on the shaft. A ring shaped piston area (4a) is formed between a piston (4) mounted on the shaft and the chuck jaw. When a pressure medium is fed to this piston area, the chuck is forced down along the shaft and therefore travels down and outward against the workpiece which is to be clamped. The ring shaped piston (4) is mounted loose on the shaft and partly serves as guide for the chuck jaw.
Patent DE-2602261-A1 (DE)
Title: Outlet gas cooler for silencers - has integral after burner located externally with secondary air and mixing chambers
Inventor: LEISTRITZ HANS KARL DR
IPC: F01N3/26
Filed: 1976-01-22
Abstract: The outlet gas chamber consists of a gas guiding chamber which is located outside the silencer and from which the gas can re-enter it. The chamber is built up from the same elements as an afterburner installation such as an afterburner chamber and an afterburner cooling section. The outlet gas cooler opens up into the unit in such a way that there is heat exchange between the cooler and the parts of the afterburner installation such as the outlet gas supply pipe, the secondary air pre-heater chamber, injectors and mixing chambers. The outlet gas cooler is mounted completely or partly in a pipe through which slip stream or blower air flows.
Patent DE-2603458-A1 (DE)
Title: Single acting hydraulic working cylinder - incorporates end stop formed from shoulder and ring groove
Inventor: GAUB ERWIN
IPC: F15B15/24
Filed: 1976-01-30
Abstract: Cylinder has end stops for the outward stroke of the pistons. The piston rod end located in the cylinder jacket (10) is divided into two fins (21,22) by a slot (19), extending in the axial direction of the rod. The fins are expanded outwards. A shoulder (17) on the fins near the piston end, together with a ring groove (25) on the internal cylinder wall, forms an end stop for the piston (14) stroke. The shoulder is formed by a conical zone (15) on the piston end, with subsequent ring groove (20). The conical zone has the same conical angle and direction of pitch as the conical ring groove in the cylinder wall.
Patent DE-2604592-A1 (DE)
Title: Transportable component assembled dustbin storage unit - comprising steel frame cover, walls and concrete filler panels
IPC: B65F1/14
Filed: 1976-02-06
Abstract: Dustbin storage unit, can be made from a set of components, and thus readily transported onto site and easily assembled there. The cover (4), sidewalls (5) and rear wall (6) consist of steel shaped frames and concrete filler slabs, form-locked together. The frames carry complementary edge connecting elements, and are detachably joined together. The rear wall and sidewall frames may be made from U and H-shaped bars, set like riders on the concrete slabs, while the cover frame is of F-shaped bars similarly set on the cover slab, with the walls set against the F stem flange. The floor (3) may be steel plate or steel frame, with a peripheral flange.
Patent DE-2607651-A1 (DE)
Title: Load measurement signal transducer arrangement for railway wagon - uses weighing pan and transducer linkage limiting relative motion and change of force direction
Inventor: NORDSTROEM KJELL HELGE
IPC: G01G1/24
Filed: 1976-02-25
Abstract: A load measurement signal transducer arrangement has a load receptacle and sensor which responds to the force applied to it in the load measurement direction. It is used for weighing railway wagons. The arrangement is designed to guarantee accuracy by preventing contact between the receptacle and the balance structure and by connecting the receptacle to the transducer by a linkage which limits movement of the receptacle tending to change the force direction. Transducers (20) are mounted on a support part (14) having a cut-out (17). The receptacle (10) is connected to the support (14) via a support device (18) permitting no or limited relative motion.
Patent DE-2610589-A1 (DE)
Title: Acupuncture couch with PVC panels - in three parts connected to generator to create magnetic fields
Inventor: FICHTNER MANFRED
IPC: A61N2/02
Filed: 1976-03-13
Abstract: Acupuncture couch comprises a mobile or fixed frame, and a three-part couch surface in the form of PVC a panels of which the two outer sections forming the head and foot of the couch can be pivoted upwards about transverse axes to a position perpendicular to the central section and locked in position. The couch sections are in the form of magnetic generators connected to an electric generator for producing constant LF-varying magnetic fields. Pref. each section contains two magnets with reversible poles supplied with a LF alternating field, for a magnetic flux in the form of sine waves or half sine waves in the range 50-1,000 Hz and intensity up to 1,000 gauss. Energy supply to a wak organism is improved and intensified, allowing more universal application to patients.
Patent DE-2612872-A1 (DE)
Title: Fail-safe valve for air-brake - has inertial valve to block defective circuit in response to output of flow monitor
IPC: B60T17/22
Filed: 1976-03-26
Abstract: Each brake circuit of the dual circuit system has a flow monitor which measures the air flow into the system. If the air flow does not reduce with time, or is at a high level then that circuit is isolated by an inertial valve to enable the air supply to be used by the remaining system. As the brakes are applied, the air flow reduces progressively as the pressure rises to the set value, if there is no leak. If the flow persists after the time delay then the circuit is isolated.