baber/WOPTO huggingface dataset:
Patent DE-2541747-A1 (DE)
Title: Strong porous concrete for underwater constructions - withstanding press. of underground waters and erosion by waves
Inventor: OHLGART SIGURG DR PHIL
IPC: C04B28/02
Filed: 1975-09-19
Abstract: Materials for underwater constructions, contg. fillers such as cement, gravel or the like and a binder such as cement, or cement-lime are improved in that the filler particles show irregular size distribution so that pores are formed in the resulting concrete rendering it water-permeable. The compsn. pref. contains 0.05-30.00 wt. % (w.r.t. the water) of a polymeric addition, pref. a cellulose ether, polyacrylamide or polyethylene oxide. Alternatively it may contain 0.08-2.5 wt. % (w.r.t. the water) of an alginate or casein. This water-permeable concrete is suitable for underwater constructions exposed to pressure of underground waters such as walled canals, coast strengthening constructions, wells. etc. Water penetrated into the concrete and the pressure is relieved. The addition of polymers improves the strength of the concrete, esp in early stages so that it can be moulded in situ under water, it also improves the erosion resistance, esp. in sailing canals and coastal structures. The water retention capability is increased.
Patent DE-2541905-A1 (DE)
Title: Pressure measurement transducer with fixed diaphragm - single crystal semiconductor diaphragm has monolithic conducting surface zone serving as strain gauge
Inventor: MUELLER NORBERT
IPC: G01L9/00
Filed: 1975-09-19
Abstract: The conducting surface zone of the diaphragm is produced by diffusion of a doping material. Its parts serve as strain gauges. They are provided with contacts and are connected in a bridge. Two opposite each other bridge resistors (6, 10) are arranged mirror-symmetrically w.r.t. a diaphragm (2) dia., and their middle parts form segments (7, 11) of a common ring. Ends (8, 9) of a first resistor (6) are parallel to ends (12, 13) of the second resistor (10), and have contacts (30-33). These contacts lie on a diaphragm ring (36) on which relative resistance changes in radial direction are nil. Two other resistors (16, 20) also consist of two parts (17, 18, 21, 22) parallel to each other and mirror-symmetrically w.r.t. the same diaphragm dia.
Patent DE-2545250-A1 (DE)
Title: Antitheft device for use with jewelry window display case - has rotating element which operates automatically with breakage in alarm circuit
Inventor: PAULI LOTHAR
IPC: G08B13/14
Filed: 1975-10-09
Abstract: An anti-theft device for use with collections of valuables, jewels, etc., has a rotary element which is automatically set into motion when the anti-theft device electric current circuit is broken by an alarm installation. A spring drive system is provided to produce the necessary power drive, and an oil filled cylinder is used to provide damping. Articles of jewelry, or other valuables are placed on the rotary element, which may be in the form of an endless rubber strip and are projected into some form of safe when the alarm circuit is broken.
Patent DE-2547440-A1 (DE)
Title: Recovery of plastic material from refuse - by heating to agglomerate in dry beater before cooling to granulate
Inventor: HILLEKAMP KLAUS DR ING
IPC: B29B17/02
Filed: 1975-10-23
Abstract: Plastic constituents are extracted from refuse (with/without pre-sorting) which contains also specific lightweight material such as fabrics, wood, kitchen wate etc. The refuse is reduced, heated to cause the plastic particles to fuse together and consolidate, and cooled so that the agglomerates are granulated. The high temp. used is that suitable for the commonest plastic constituent present, pref. polythene. The lightest fraction, which has already been removed from the refuse by air flotation and then wet pulping, is passed to the machine which has a cylinder, an axially adjustable motor which rotates beater arms. The cylinder has fixed plates or pins which are also axially adjustable and a wall thermometer. Simple, cheap and effective process.
Patent DE-2548714-A1 (DE)
Title: Coke oven door seal - comprising steel section cavity around door filled with injected hardening sealing compound
Inventor: KNAPPSTEIN JOHANNES DR
IPC: C10B29/06
Filed: 1975-10-31
Abstract: The doors of the oven chambers of coke oven batteries are sealed against the door frame by forming a channel by steel sections which are arranged along the outer door contours. The cavity formed with the door frame flange is accessible from the outside and is filled, after a chamber has received its coal charge, by a sealing cpd. The hardened cpd. is mechanically removed after each coke pushing operation and renewed. A reliable seal is achieved even if incrustations have not been removed completely or if the metallic sealing edges have become jagged. Elements require little maintenance.
Patent DE-2549503-A1 (DE)
Title: Fastening for sheets to framework of large tents - formed by extruded profile holding bead along sheet edge
Inventor: SCHALL MATTHIAS
IPC: E04H15/64
Filed: 1975-11-05
Abstract: Fastening comprises a profiled anchorage which guides and holds the sheet to the framework by means of a bead extending along the edge of the sheet which fits inside the profile. The guide is an extrusion with two mirro-image slotted, tubular sections, the flanges of which are rounded off. These are positioned back-to-back and form one piece with the connecting centre section. The centre section has bolt holes and a contoured surface adapting it for fastening to a framework member. The bead may be formed by a hem along the edge of the sheet enclosing a spirally braided rope with a metal core. The smooth surfaces of the profiles and the bead prevent wear and make it much easier to assemble and dismantle the tents, the sheets being sufficiently stiff to thread easily into the supports, whilst they can be folded to take up the min. space during transport.
Patent DE-2552729-A1 (DE)
Title: Spring loaded crossed lever snap action hinge - has spring with maximum displacement in hinge movement mid region
Inventor: LAUTENSCHLAEGER JUN KARL
IPC: E05D3/06
Filed: 1975-11-25
Abstract: The snap action crossed lever hinge has mounting elements for holding on door and on the walls. The crossed lever mechanism has two levers connected in their mid-region by a pivoting joint. Ends of the levers are pivoted on walls and doors and connected to a sliding guide or indirectly to the mounting elements. The snap action mechanism can be used for crossed lever hinge as well as for the lever hinges. The closing spring (38) is held in either of the levers (22) in the crossed lever mechanism. One spring end is held on lever arm (22) and the other end of spring is connected directly or indirectly on a support face. This face moves from one end position to another so that spring (38) undergoes maximum deflection in an intermediate position.
Patent DE-2603983-A1 (DE)
Title: Positioning plate for vertebrae operations - has threaded rod screwed into bone joint to position vertebrae lever plate
Inventor: ULRICH MAX BERNHARD
IPC: A61B17/70
Filed: 1976-02-03
Abstract: The device is for use in spondylolisthetic (vertebrae) operations and has two insertion plates (4) each with an insertion prong (5) at the plate end. A longitudinal hole (6) is cut in the longitudinal plate direction with twin pull screws (7) each with an anchorage screw thread (8) at one end and a tensioning thread (9) at the other end. Each screw (7) engages through the longitudinal hold (6) in the insertion plate (4). A supporting tensioning nut (10) is fixed to the anchorage screw thread (8). Each insertion prong (5) has a counter aligned safety prong (11).
Patent DE-2616415-A1 (DE)
Title: Isocyanurate-contg. polyisocyanates prepn. - by polymerising aliphatic diisocyanates and opt. aromatic diisocyanates using a catalyst-cocatalyst system
Inventor: WULFF HARALD DIPL CHEM DR
IPC: C08G18/02
Filed: 1976-04-14
Abstract: Aliphatic diisocyanates (I) or mixts. of (I) and aromatic diisocyanates are polymerised to polyisocyanates with the formation of isocyanurate gps. using a catalyst/cocatalyst combination consisting of 1,3,5-tris-(dimethylaminopropyl) s-hexahydrotriazine (II) and a 1-10C organic mono or dicarboxylic acid (III). Pref. the mol. ratio (II) to (III) = 8:1-0.1:1 and the cocatalyst system is used at 0.01-3 pts. wt. per 100 pts. diisocyanate. Suitable acid components (III) are e.g. acetic acid, benzoic acid, adipic acid or terephthalic acid. Suitable (I) is hexamethylenediisocyanate (IV) opt. mixed with 4,4'-, 2,4' and/or 2,2'-diphenylmethane diisocyanate (V) and/or 2,4- and/or 2,6-TDI e.g. using a mol. ratio (IV):(V) and/or TDI of 0.2-5. The catalyst/cocatalyst combination has high activity in the trimerisation and polymerisation of the diisocyanates and allows the reaction to be carried out under milder conditions than prior art catalyst systems. The reaction prods. are solid or highly viscous liqs. at room temp. composed of polyisocyanates contg. 12-25% isocyanurate gp. They are soluble in various organic solvents and are useful raw materials in the prodn. of polyester and polyether lacquers one-pack polyurethane lacquers, and polyurethane casting compsns. elastomers foams and adhesives.
Patent DE-2618299-A1 (DE)
Title: Typewriter stencil holder line switch - uses drive unit to move cylindrical ruler containing adjustable hollow float controlled via switch desk
Inventor: KLUGE GERHARD A
IPC: B42D9/02
Filed: 1976-04-27
Abstract: The line switch machine is fitted to a stencil holder for typewriters, automatic typewriters, photo setting machines etc. with a ruler movable on the stencil holder transverse to the line direction. A drive unit moves the ruler which consists of a cylinder with a float adjustable inside the cylinder below a liquid column connected to the ruler. It has an inlet and an outlet valve for the liquid, conveyed by the liquid pump. The float (9) which consists of a hollow body, is controlled via a switch desk with a digital indicator (3). Light cells are located in a light cell track (6) which contains measuring grooves. These grooves are punched into a measuring ledge, and from variable fixed screws which are scanned.
Patent DE-2619818-A1 (DE)
Title: Torsion compensating crusher jaw drive - has stabilising swing arm seated between drive and jaw so that lines of force pass fulcrum
Inventor: FRIEDRICHS INGO DIPL ING
IPC: B02C1/04
Filed: 1976-05-05
Abstract: The crusher jaw drive assembly avoids critical stress situations on the swinging jaw even if accentric forces are present. This achieved by a stabilizing swing arm which takes up or eliminates torsion. The swing arm has its own seating which takes up lateral forces and is arranged in such a way that the lines of force originating from the line, as well as those directed to the working jaw pass the fulcrum of the stabilizing swing arm. The stabilizing swing arm (17) is hinged on pin (19) and has the same moment of inertia as the swing jaw (3). The lever arm between pin (19) and line of force of thrust piece (18) is shorter than the lever arm between pin (4) and the line of force of thrust piece (19) resulting in a lesser torsion of the stabilizing swing arm (17).
Patent DE-2620493-A1 (DE)
Title: Data transfer control system - uses 3 signals in any one transfer cycle to carry out subscriber addressing and data transfer
Inventor: DUELL ERNST DR ING
IPC: G06F13/42
Filed: 1976-05-08
Abstract: The data transfer system, for transferring data between a control unit and subscribers, uses a min. number of control signals for calling up subscribers and requires less time to start data transfer. Transfer is also unaffected by brief disturbances in the channel. Subscriber addressing and the transfer of data is controlled within any one transfer cycle by 3 signals. The cycle begins when the first signal's binary value changes. The change in the binary level of the second signal is used to acknowledge the receipt of the address sent after a delay after the first signal. After a further delay the data is sent and its receipt is acknowledged by a change in the first signal. A change in the binary third signal acknowledges that data has entered the control unit or subscriber terminal. A new cycle then begins.
Patent DE-2620898-A1 (DE)
Title: Mfr. of electrical conductor with linear polyester insulation - with preliminary treatment with release agent
Inventor: RAGER HORST
IPC: B29C48/05
Filed: 1976-05-12
Abstract: Prodn. of an electrical conductor with impact-resistant and temp, -resistant insulation of linear polyester comprises first treating the surface of the conductor with a release agent. The insulation is then applied by extrusion, and after leaving the extruder the conductor is subjected to directed temp. treatment at temps. above freezing point of the polyester. The polyester may be polyethylene terephthalate which is extruded at 250-350 degrees C, or polybutylene terephthalate which is extruded at 220-290 degrees C. The conductor is pref. sprayed with silicone oil prior to introduction into the extruder. Process is effected in a single stage, with very thin insulation.
Patent DE-2621705-A1 (DE)
Title: Heat sink block for flexible printed circuit - is inserted in spaces between ventilation channels and has circuit chips pressed in contact with heat sink block
Inventor: FISCHER HANS
IPC: H01L23/538
Filed: 1976-05-15
Abstract: The heat sink block, for a flexible printed circuit, comprises a rectangular frame with enclosed ventilation channels running across it. The flexible printed circuit is folded in zig-zag fashion and the folds inserted in the spaces between the ventilation channels. Circuit chips (5) are attached to one face of the flexible printed circuit, which is folded so that the circuit chips (5) lie against the walls of the heat sink block. The circuit chips (5) may be pressed into contact with the heat sink block via spring elements glued to each circuit chip.
Patent DE-2628324-A1 (DE)
Title: Clamping bolt for T-slotted plate - has rectangular head and tapped sleeve screwed down on plate
Inventor: OKA YASUO
IPC: B23Q3/10
Filed: 1976-06-24
Abstract: The T-shaped anchorage is in the form of a rectangular headed bolt or nut fitting detachably in the T-section groove in a table. The bolt head sides (9, 9') extend in opposite directions and fit in the lower, wide portion of the groove. The thickness (h) of the flange is less than the height of the lower part of the groove. Their widht (b) is less and their length (a) greater than the width of the upper narrower portion of the groove. Above the flanges there is a tapped sleeve screwed down to bear against the edges at the top of the groove. These enable the bolt or nut to be firmly clamped against the groove walls.
Patent DE-2632538-A1 (DE)
Title: Protective cover for vehicle licence plate - has flexible U=shaped rail clip on edges and transparent face
Inventor: GUENTHER HORST
IPC: B60R13/10
Filed: 1976-07-20
Abstract: The vehicle licence plate is protected by a clip on transparent cover which is held on the plate in a variety of different fittings. The cover can have flanged sides which clip over the edges of the plate or can be fitted with flexible U-shaped rails (5). The cover is bent away from the plate and provides a water and dust proof protection. The plate is easily read at all times and does not corrode. Damaged covers are simply replaced.
Patent DE-2639167-A1 (DE)
Title: Heel hold for long distance ski bindings - is used with ski-boot having flexible inset pressed into rigid heel
Inventor: WOITSCHAETZKE HANS
IPC: A63C9/20
Filed: 1976-08-31
Abstract: Long distance ski binding heel hold used for long distance ski boots with limited flexible soles including an integral heel into which at each step at least one projection on the long distance ski's upper side fits. The contact area on the heel (2) consists of elastic flexible material. The material is embedded into the heel which otherwise is made of a material rigid against deformation leaving its lower side free. The inset embedded into the heel is made as a round plate with the whole inset element (3) pressed into a recess in the heel (2).
Patent DE-2640293-A1 (DE)
Title: Continuous electrophoretic tests on serum-protein - performed by passing continuous band carrier through all successive stages
Inventor: BERKHAN ERNST DR
IPC: G01N27/26
Filed: 1976-09-08
Abstract: Electrophoretic tests on substances/mixts. and on serum proteins in particular, are performed using appts. with the following stages; impregnating an electrophoretic carrier with buffer soln. removing excess soln. mounting the specimen on the carrier, electrophoretic sepn. colouring the sepd. fractions on the carrier, discolourising the carrier and densometric evaluation of the coloured fractions; all these functions are performed successively in one continuous set of operations. Automatic sequence rather than manual in stages, the carrier is e.g. cellulose acetate film.
Patent DE-2647292-A1 (DE)
Title: Magnetic wire testing device - passes electric current through wires and suspension of magnetic powder is sprayed on wires
Inventor: BERNER KLAUS DIPL PHYS DR
IPC: G01N27/82
Filed: 1976-10-20
Abstract: Components are tested for surface defects. The component is fastened by its both ends to holders on the device frame serving also as current supply, and the current is passed through it. A magnetic powder, suspension is sprayed on it for crack detection. Holders for the component ends are in the form of rotatable chucks mounted on and insulated from the device frame. Their shafts are hollow for the component feeding. The chucks are clamped or released by control devices operated by a pressure medium.
Patent DE-2652926-A1 (DE)
Title: Exhaust gas afterburner for IC engine - utilises central mounting tube for apertured ceramic block as discharge passage for gases
Inventor: LEISTRITZ HANS KARL DR
IPC: F01N13/18
Filed: 1976-10-15
Abstract: The afterburner has a casing (4) with a central tube (18) running through it. The casing is held to the tube by a perforated plate (3). All the other components are fixed to the tube and pressed axially against the plate (3) by two springs (13, 19). Gss enters from the engine (1) into a space upstream of the perforated plate (3). After flowing through a plate (3) it passes through channels in a ceramic block assembly (7). It leaves this through perforations in a metallic cylinder (11) and flows through a further perforated plate (15) to reach the central tube (18). It enters this through holes (21) in its side.
Patent DE-2656646-A1 (DE)
Title: Sand metering system for railway vehicle brakes - with sand in container loosened and dried by heated air current
Inventor: HEFTER ERIK DR ING
IPC: B60B39/08
Filed: 1976-12-14
Abstract: The metering system is used to feed sand in front of railway vehicle wheels when braking. The sand is contained in a funnel shaped hopper provided with a weather tight lid. The sand metering container (6) is flanged to the hopper outlet, the outlet tube (7) extending through the metering container base to end at a distance from a fixed bell (9). A sintered metal plate (10), permeable to air, is fitted below the bell and at a distance from the container base. The sand free space (12) between plate and base contains an electrical heater element (15) and a regulated air supply (13). An air pipe (19) passes through the sand hopper to terminate as a bend (17) with the free open end facing downwards and located at the highest point of the hopper.
Patent DE-2659134-A1 (DE)
Title: Electronic control for vehicle lights - has relay linked to flip=flop driven by impulse generator and reset by signals from feedback loop circuit
Inventor: ZOEBL HARTMUT
IPC: B60Q11/00
Filed: 1976-12-28
Abstract: The vehicle lights are operated by a simple relay (16) linked to a flip-flop (13) and a power switching circuit (14). Operation of the light switch operates an impulse generator (11) to drive the flip flop first to the dipped position and then to the high beam. Successive operation of the light switch changes the setting of the headlamp filaments. The control circuit is provided with a feedback loop to a control circuit (24). This resets the flip flop to the dipped beam setting when the lights are switched off. When the lights are first switched on they are always in the dipped position.
Patent DE-2710642-A1 (DE)
Title: Vibration compactor for prefabricated concrete components - has noise absorption system with top box and flexible skirt
Inventor: SEILER HERMANN
IPC: B28B1/08
Filed: 1977-03-11
Abstract: The vibration compacting arrangement is used on machines for making prefabricated concrete elements such as slabs, flagstones and pipes. The vibration compacting arrangement is encapsulated during the working process on all its free exposed edges with noise absorption material. The vibration compactor has a loading plate (7) placed on the material in the mould. The plate is provided on its top surface with several noise absorption boxes (12). The plate edges carry a downwards hanging skirt (13) projecting down to the plane of the rams (9). This skirt encloses the space between the plate and the mould.
Patent DE-2710842-A1 (DE)
Title: Cover for motor vehicle door lock - has moulded plastics body with pin which is inserted into keyhole
Inventor: HILL GEB ECKELL ELSA
IPC: E05B17/00
Filed: 1977-03-12
Abstract: The cover for a vehicle door lock is used to prevent the ingress of moisture. The covering piece (1) has a handle (3) and a pin (4), which is pushed into the lock. The cover has flexible pad (2) which is pushed against the lock outside face. The cover itself can be moulded as a handle, and the pin acts as a clamping element. This pin can be made for this purpose of two wires or it can be a wire loop. The open ends of the wire loop are anchored into the cover.
Patent DE-2714151-A1 (DE)
Title: Low power dissipation crystal oscillator - has IGFETs in inverter circuit and excitation circuit with crystal resonator and capacitive load
Inventor: SAITO TAKAHITO
IPC: G04F5/06
Filed: 1977-03-30
Abstract: The low power dissipation crystal oscillator comprises an inverter circuit including a pair of complementary insulated gate field-effect transistors and an excitation circuit. This is connected between the output and the input of the inverter circuit. The excitation circuit comprises a crystal resonator and a pair of capacitive loads, wherein different DC bias potentials are applied to the gates of the field-effect transistors, respectively, in order to cause the power dissipation to be extremely reduced.
Patent DE-2728722-A1 (DE)
Title: Heat recovery for oil or gas heating - uses evaporator of heat pump to withdraw heat from exhaust fumes
Inventor: BEHRENS HARTMUT
IPC: F24H4/02
Filed: 1977-06-25
Abstract: The process reclaims heat from the exhaust gas of an oil or gas heating system using a heating circuit connected to the burner. The heat is retained from the exhaust gases in the right angle flue using the evaporator of a heat pump. The heat is supplied via the pump condenser into the heat circuit. The burner flue (6) has two branches (9, 10), connected via the evaporator (12) of the heat pump (13). The condenser (15) is positioned in the heating circuit (2). The flue has an adjustable flap (8) between the branches, to control the gas draught through the evaporator.
Patent DE-2732383-A1 (DE)
Title: Overhead installation of anchor rod - has seal tape to retain adhesive capsule in location hole
Inventor: HIESCH STEFAN
IPC: F16B13/00
Filed: 1977-07-18
Abstract: The anchor element e.g. a threaded rod (4), is installed in a blind overhead hole (1) by adhesive. The adhesive required is contained in a closed capsule (3). To retain the capsule in its overhead location hole (1), a strip of self adhesive tape (5) is placed over the hole. The tape can be made from paper, plastic or some textile fabric and it is supplied on a reel. A hammer drill (7) with the anchor rod (4) located in its chuck (6) is then used to push the rod (4) through the sealing tape (5). As the adhesive capsule is broken, the anchor rod reaches its final location where it will be held when the adhesive has hardened.