baber/WOPTO huggingface dataset:
Patent DE-2549827-A1 (DE)
Title: Pulse width modulation control of signal generator - has saw tooth generator output processed through threshold stage to generate gating signal for trigger output stages
Inventor: BISKUP KONRAD ING GRAD
IPC: H03K7/08
Filed: 1975-11-04
Abstract: A signal generator produces a square wave output that has a mark-space ratio that is proportional to an input voltage. The circuit is designed to avoid changes in mark-space ratio due to temp. variations and changes in the saw tooth generator that forms the basis of the circuit. The saw tooth generator (1) output is processed over a threshold detector (4) that generates a constant voltage amplitude output that is inverted (5) and used to gate two trigger stages (2, 3). The input voltage (Ve) is gated into the trigger stages by the saw tooth generator. With the input voltage (Ve) equal to zero both output waves (V1, V2) have mark-space ratios of 1:1. The ratio changes when the input changes. The threshold stage ensures that the ratio remains constant even though the saw tooth generator output amplitude may change.
Patent DE-2556492-A1 (DE)
Title: Cooking pot with lid holding device - has butt strap with groove running parallel to pot edge for use when pouring liquids
Inventor: BLASECK DETLEF DIETRICH
IPC: A47J36/08
Filed: 1975-12-16
Abstract: The cooking pot is fitted with a device to hold the lid during the pouring of the boiled liquids from potatoes. the pot (1) is fitted with a butt strap (13) superimposed on the pot from outside. It is symmetrical to the pot handles and projects beyong the edge of the pot (12). It has on the inside of its free end at least one groove (131) extending parallel to its edge (12). The lid of the pot (2) is fitted at its edge with two handle pieces (22) which are positioned opposie to each other.
Patent DE-2603226-A1 (DE)
Title: Manufacturing axial turbine ceramic rotor discs - using spark erosive or ultrasonic machining techniques
Inventor: LOHRUM WALTER
IPC: B23P15/02
Filed: 1976-01-29
Abstract: Ceramic rotor discs can be made from electrically conducting ceramic material by means of spark erosion and of non conducting ceramic by means of ultrasonic machining using probes, the shape of which corresponds to the shape of the profile to be machined. When profiled blades are manufactured which are in the shape of a twisted aerofoil, both profile surfaces (7, 11), i.e. the pressure side and the suction side are machined separately. In such profiles, straight parallel lines can be drawn from the top profile to the bottom profile, which together form the required profiled surface. During machining, the profile is twisted and moved along. The width of the required profile tool depends on the amount of twist that will be given to it.
Patent DE-2609123-A1 (DE)
Title: Anhydrite compsn. for casting, flooring and coatings - contains activators trialkali phosphate flow agent and surfactant
Inventor: KYRI HANS DR
IPC: C04B28/16
Filed: 1976-03-05
Abstract: Synthetic and/or natural anhydrite contg. 0.3-3.0 wt.% free CaO or the equivalent amt. of Ca(OH)2, activators and opt. water, also contains 0.1-3.0 wt.% trialkali phosphate (I) opt. is not >1.5 wt.% flour agent (II) and >0.1 wt.% surfactant (III). (I) acts as a strong activator as well as inhibiting the commencement of hardening without affecting the quality of the anhdrite. The compsn. may be used for self leveling flooring, casting, filing of voids e.g. in mining or as coatings. In an example, anhydrite contg. 1% CaO, K3PO4, and flour agent were mixed with water to give a water-binder coefficient of 0.35. The compsn. was cast and remained fluid for 60 min. After 24 hours the compsn. hardened with a smooth surface.
Patent DE-2612043-A1 (DE)
Title: Non electric mobile suction cleaner for swimming pool - has obstacle sensor which reverses drive wheels and fluid motor drive
IPC: E04H4/16
Filed: 1976-03-22
Abstract: The mobile appliance is used for cleaning swimming-pools, by suction and separation of sediments sited in the bottom area. It incorporates a suction nozzle (2), with joint pipe socket and suction pipe (22) connection to a circulation filter plant fitted outside the pool. It has drive wheels on opposite sides, and wheel or wheels on one side being reversible in their direction of revolution. There is a sensor for control of this revolution direction, affected by any obstacles encountered. The drive wheels are driven by a rotating fluid motor (3) between suction nozzle and joint pipe socket. The appliance (1) may have two drive wheels and a steering roller (6). Appliance can be operated without supervision, without electrical dangers involved.
Patent DE-2614249-A1 (DE)
Title: Electromagnetic buzzer or bell - has core moving to and fro in alternating magnetic field to hit surrounding bell piece
Inventor: BERGMANN KARL-HEINZ
IPC: G10K1/064
Filed: 1976-04-02
Abstract: The electro-magnetic buzzer or bell has a ferromagnetic core movable in an alternating field and placed between pole pieces of a yoke magnetised by a permanent magnet. The core has axial pins passing through holes in pole pieces and hitting the bell surrounding it. The holes (11) in the yoke (1) pole pieces (12) have a relatively large dia. in comparison with the core (4) dia. Magnetic pole plates (7) on the outer sides of pole pieces (12) cover the holes (11). They have a hole whose dia. is smaller than the core dia. Dia. of pins (5, 6) is correspondingly reduced, so that they can move in the holes.
Patent DE-2625189-A1 (DE)
Title: Passenger or goods conveyor system safety cable - has same cross section size as existing support of traction cable
Inventor: GRABKE HEINZ GUSTAV RICHARD
IPC: B61B12/06
Filed: 1976-06-04
Abstract: The safety cable in passenger or goods conveyor systems whether vertical, horizontal or on an incline, involves use of the existing support or traction cable, with stable equilibrium preserved for cable cars, gondolas or travelling cages. The cable cross-section is the same as that calculated for the support or traction cable, avoiding the disadvantages of having cables of different cross-sectional size for the same conveyance. A second cable can be added to the existing support or traction cable, serving the same purpose but also designated as safety cable.
Patent DE-2632324-A1 (DE)
Title: Bus with two level access for passengers - has doors arranged in both side walls and one door has steps to street level
Inventor: HAGEN HANS DR ING
IPC: B62D31/02
Filed: 1976-07-17
Abstract: Bus when there is equipment to allow entry into the bus from two different levels i.e. from the platform level at the bus station and from start level. Doors (2, 3) are arranged in both side walls. On one side of the bus (1) in the region of the door (2), steps (4) are let into the vehicle floor (5). On the other side the vehicle floor (5) reaches to the door (3e without steps. The steps (4) are on the side of the bus, used by passengers in the street i.e. in countries where vehicles drive on the right, on the right side of the bus. The door on the step-less side of the bus (1) is in the middle of the vehicle.
Patent DE-2634141-A1 (DE)
Title: Column for direct counter-current, gas-liquid contacting - having several tiers of rotating, corrugated, spiral bands over which the liquid is dispersed
Inventor: SCHAFRANOVSKIJ ALEKSANDR VLADI
IPC: B01J10/02
Filed: 1976-07-29
Abstract: A column for direct gas-liq. contact has bottom gas inlet and liq. outlet connections and top gas outlet and liq. inlet connections. Along the vertical axis of the body of the column is a shaft that has attached to it at set intervals several tiers of contact stages. These stages are of curved bands in the form of spirals diverging from the shaft, with edges flanged towards the shaft. The rotating bands have corrugations running across them. Annular pockets attached to the inner wall of the column body catch liq. rejected from bands of that tier and transfer it to discharge channels that spread it on the tier below through orifices in their baseplates. These discharge channels are fixed on >=1 vertical bar mounted near the lateral wall of the body with the possibility of pivoting the channels to allow the distribution of liq. over the rotating band. Column is used in the chemical, pharmaceutical, food and petroleum refining inds. for pref. the rectification under vacuum of substances sensitive to high temp., e.g. fatty acids, ethanolamine, polyatomic alcohols, esters with high boiling points, etc. It has a developed contact surface allowing the production of a complimentary turbulence of the film of liq. allowing the intensification of the exchange, thus raising the output of the contact stage.
Patent DE-2634389-A1 (DE)
Title: Stack-type capacitor with folded metallised plastic strip - with metal films sprayed onto fold edges for contact between coatings
Inventor: BEHN REINHARD DIPL PHYS
IPC: H01G4/26
Filed: 1976-07-30
Abstract: Stack-type capacitor comprises a folded metallised plastic strip forming capacitor coatings and dielectric layers (1) of which the former are contacted by metal films sprayed onto the fold edges. Two coatings of opposite polarity and an intermediate dielectric layer which is too thin to be treated as a self-supporting film are bonded together by their materials. This 3-layer film is bonded on both sides to plastic covering layers soluble in a solvent in which the dielectric layer is insoluble. In the region of the fold edges the outer covering layer is dissolved away, and the metal layer which thus becomes accessible is contacted at its end face by a spray metal film.
Patent DE-2635871-A1 (DE)
Title: Connector for air hose of air-spray massager - comprises inner and outer collars fitting and clamping hose end without adhesive
Inventor: BUCHER HEINZ
IPC: F16L37/248
Filed: 1976-08-10
Abstract: The hose is inserted into a ring socket (i.e. over 16) and clamped into place by a collar (20). An inner part (23) of the collar presses a sealing ring (30) into place; the outer part of the collar (27) is divided by lenghtwise slits (22) and bears hooked ends (21), which clip over the main body of the connector (13).
Patent DE-2643276-A1 (DE)
Title: Clasp ring spring prodn. machine - features rotatable turntable with four 90 degree displaced work stations
Inventor: CANTINI ALFREDO
IPC: A44C27/00
Filed: 1976-09-25
Abstract: The machine is for producing springs and for introducing these into hollow spring rings for clasps for necklaces, arm bands, bracelets etc., when the machine consists of a table which can turn about a vertical shaft. The table has rotary drives so that it rotates in steps of annular spacing about the spindle. On the table, four similar clamps are fixed to the periphery at an angle spacing of 90 deg. and are mounted on radial holders which are connected with guides and springs. These springs exert a radial pressure on the holders and thus allow the clamps to project beyond the periphery. The clamps consists of shanks arranged vertically above each other, which are pressed together by springs. There are four workpieces for these clamps in the rest position, and the springs are assembled at these points while at the last work point, a senser tip transmits signals to sort out faulty components.
Patent DE-2645660-A1 (DE)
Title: High pressure pneumatic conveyor - by which conveying gas is partly composed of gas released from pressure transmitting station
Inventor: HOELTER HEINZ
IPC: C10J3/50
Filed: 1976-10-09
Abstract: The procedure and equipment for high pressure pneumatic conveying, pref. by pressure gasification of coal has the essential conveying gas medium partly made up from the pressure transmitting station is fed over a dust extractor i a storage container for the gas. In order to keep the conveying speed constant the pressure transmitting station is provided with a measuring and regulating section. The conveyor is a dual pipe system which has between the actual conveying pipe and a surrounding guard pipe provision for measuring excessive pressure. The equipment consists of a pressureless container (1) and a stop valve (2) and a conveying pipe line (4) and a gas supplying pipe n5). Below the stop valve 2) is located an extracting pipe line (6) which is connected over a dust extractor (7) with a gasometer (8). Behind the gasometer (8) is positioned a compressor (9) over which the conveying gas pipe line (10) supplies the conveying gas medium to the pressure transmitter.
Patent DE-2650577-A1 (DE)
Title: Optical measurement device for lock angle of vehicle steering wheels - has movable part coupled wheel and fixed reference part
Inventor: STAUDINGER ALFONS
IPC: G01B11/275
Filed: 1976-11-04
Abstract: The device has a reference element which may be aligned. It has a swivelling part coupled with the wheel and it is joined to the former so that it can swivel about a vertical axis. The reference and swivelling elements have opposite to each other reading devices for the wheel angle. The vertical pin connecting the swivelling and reference elements is independent from the apex of the wheel lock angle. A parallel guiding device is provided on the reference element, and the reference and swivelling elements are movable relative to each other to allow free movement of the wheel.
Patent DE-2650816-A1 (DE)
Inventor: KRETZSCHMAR GUENTER DIPL CHEM
IPC: G02B5/04
Filed: 1976-11-06
Abstract: The liquid prism has at least one light entry opening sealed in a light-transmitting fashion and one light exit opening sealed in a light-transmitting fashion, as well as a chamber with a liquid. Placed on the liquid, which has a refractive index of 1.4 to 1.5, is a plane-parallel transparent plastic disc with a thickness of 0.1 to 2.0 mm, whose diameter is 0.5 to 2.0 mm smaller than the inside diameter of the chamber, and whose refractive index is 1.3 to 1.6. The plastic disc has a lower surface energy than the liquid. <IMAGE>
Patent DE-2657812-A1 (DE)
Title: Noise damper for IC engine exhaust - consists of engaging toothed rotors in exhaust driven by exhaust gases
Inventor: TIETGEN GERHARD
IPC: F01N1/18
Filed: 1976-12-21
Abstract: The noise damper for internal combustion engines is fitted into exhaust pipe, in which exhaust noise of engine is reduced by a turbine. High noise reduction effect is ensured due to narrow gaps between turbine parts and the pipe inner wall. The turbine is designed as toothed wheel arrangement. The two gear wheel type rotors have helical teeth for reducing noise. Both rotors (2, 3) are connected by a gear drive. These rotors can be driven also by external driver. The rotors are also driven by exhaust gases so that one rotor rotates in a direction opposite to that of the other one. The turbine starts rotating immediately the engine is started.
Patent DE-2659785-A1 (DE)
Title: Paper tensioning device for paper web transport - has axially adjustable tensioning devices with spring loaded switching pawl
Inventor: DROBE HERBERT
IPC: B65H20/20
Filed: 1976-12-31
Abstract: The paper tensioning mechanism on a paper web transport device for printing machines includes at least two axially adjustable tensioning devices each fitted with a torsion spring. Each tensioning device is provided with a switching pawl preloaded by the spring and engaging a ring shaped rigidly mounted locking bearing. The switching pawl (10) has one tooth (11) which is during the paper transport locked in one of a number of recesses (19) in the locking bearing (18) during paper transport. During rotation of a gear (4) which encloses the torsion spring the switching pawl (10) which is held by an opposite tensioning force is released from its locking position by a switching cam (15) on inner surface of the gear (4). Thereafter the switching pawl (10) is moved by the torsion spring (6) in the next recess of the locking bearing (18).
Patent DE-2702236-A1 (DE)
Title: 1-Phenyl-4,5-di:hydroxy-imidazolidine-2-thione derivs. - useful as ectoparasiticides, esp. against acarids
Inventor: ENDERS EDGAR DR
IPC: C07D277/54
Filed: 1977-01-20
Abstract: Imidazolidine-2-thiones of formula (I) and their salts are new- (R1-3 are H, alkyl, haloalkyl, alkoxy or halo. R4 is alkyl, cycloalkyl or alkenyl). Pref. (I) have R3 is H; R1 and R2 are H, 1-4C alkyl, CF3 or Cl; and R4 is 1-4 C alkyl. They are prepd. by reacting a substd. phenylthiourea with glyoxal. (I) are useful for control of ectoparasites, esp. acarids but also insects. Their toxicity towards warm-blooded animals is low and they are effective against strains of Boophilus which are resistant to organophosphorus pesticides. In an example reaction of N-(2,4-dimethylphenyl)-N'-methylthiourea and glyoxal gave 1-(2,4-dimethylphenyl)-3-methyl-4,5-dihydroxyimidazolidine-2-thio- ne.
Patent DE-2708998-A1 (DE)
Title: Plug modular unit for sliding into equipment rack - has free plug locked to connector on unit circuit board via hooked arms
Inventor: BAADER FRANZ JOSEF
IPC: H05K7/14
Filed: 1977-03-02
Abstract: The plug-in unit is used for sliding into an equipment rack, it contains a circuit board with a connector into which a corresponding connector plugs from the front. The free connector has a locking mechanism to hold it to the connector of the board. The locking mechanism consists of two hooked arms. These arms are inclined slightly inwards towards one another and they are located on opposite sides of the connector. The hooked arms locate in suitable recesses in the slides of the connector attached to the circuit board.
Patent DE-2709691-A1 (DE)
Title: Radio receiver tuning circuit changeover switch - allows reference frequency to follow oscillator frequency during tuning
Inventor: HEGELER WILHELM DIPL PHYS
IPC: H03J5/02
Filed: 1977-03-05
Abstract: The tuning circuit, for a radio receiver, has its reference frequency changed in steps by count pulses. The control stage contains a changeover stage with a changeover switch whose middle contact is connected to the output of a comparator. During tuning the changeover switch is such that the frequency generating stage that produces the reference frequency receives correction pulses from the comparator -thereby allowing the reference to follow the multiplied output of the oscillator. The changeover switch changes over at the end of tuning.
Patent DE-2713354-A1 (DE)
Title: Octagonal headed interlocking concrete paving stone - has crenellated line outside inner face of imaginary base square
Inventor: BARTH GUENTER
IPC: E01C5/06
Filed: 1977-03-25
Abstract: The paving stone of concrete has a head piece homologous to a central axis and symmetrical to its centre, with outside peripheral lines together forming six corners at six successive points to make up octagon, with each corner enclosing an angle of 135 deg. The crenellation line (30) of the base piece (16) runs only outside the inner face of a notional square (38), with one side matching the side of the notional octagon lying between its seventh and eighth corners. This crenellation line may be in contact with the notional square, pref. only at the four corners of this.
Patent DE-2716067-A1 (DE)
Title: Type disc for impact printing machine - has lock attachable to drive shaft with radially extending arms with removable type
Inventor: HOLLAN FRANCIS CHRISTOPHER
IPC: B41J3/28
Filed: 1977-04-09
Abstract: The typing disc for an impact printing machine has a central carrier part (1) and locking mechanism (5,6) by which it can be attached to a drive shaft (4). Radially extending arms (2,12) are attached to the disc and have removable type symbols heads (2a, 16) on their ends. The arms are removable from the central part (1) while the type is formed in one piece with the type arms. The type head may be made from the same or different material to that of the associated arm. The outer part of each arm has an eye (14) into which is located the type head by a press fit.
Patent DE-2716920-A1 (DE)
Title: Overheating prevention for oil or gas fired burner - has two electromagnetic jacks to automatically retract burner if power fails
Inventor: REESE BURCHHARD
IPC: F23C5/02
Filed: 1977-04-16
Abstract: The overheating prevention equipment for oil, gas fired afterburner burners is for units with a vertical hinge (3) on one side of the furnace wall opening and a retractable locking pin (2) on the other. the equipment comprises two conventional double-acting hydraulic or pneumatic jacks. One of these is arranged to operate the locking pin. The other (6) is connected horizontally to the furnace front and burner so that it can rotate through 90 deg. from its firing position. Electromagnetic valves in the lines to the jacks are so connected that if power fails the burner is rotated to the non-firing position. Power restoration reverses the process.
Patent DE-2721580-A1 (DE)
Title: Coil system for holding relay with sealed reed contacts - has closing and breaking coils arranged at specified geometry relative to reed contacts
Inventor: GROBE WOLFGANG DIPL ING
IPC: H01H67/30
Filed: 1977-05-13
Abstract: The coil system of the relay consists of a closing coil (4) and a breaking coil (5). The closing coil is associated with the sealed reed contacts (1) symmetrically to the operating air gap (6). The breaking coil surrounds the end of a contact reed (2) away from the air gap. If two sealed reed contacts are provided, the closing coil of one contact is series connected to the breaking coil (4, 4', 5, 5') may be associated with the relay contacts.
Patent DE-2724712-A1 (DE)
Title: Necklace or girdle calendar - is closed ring on which runners with date marks and marker are threaded and may include month indicator
Inventor: HARLAN KRISTIAN DIPL ING
IPC: G09D3/00
Filed: 1977-06-01
Abstract: The calendar is to be worn on the body as a necklace or girdle. Runners, such as beads, discs, letters numbers, etc., carry marks corresponding to days of the month and have holes which enable them to be threaded onto a closed ring. The ring also carries a marker. The marker may be fixed on the ring so that by transferring runners from one side of the marker to the other the date can be indicated. Alternatively, the marker may have a bore through which the runners may pass. The runner with the correct date mark may be kept visible through a window in the marker e.g. by a thickening of the ring. Several arrangements are described for various month indicators which can be attached to the marker.
Patent DE-2727632-A1 (DE)
Title: Medium voltage circuit breaker with gas filled arc quenching chamber - has tubular stationary contact carrying tubular arcing contact at end protruding into quenching chamber
Inventor: HOECKELE MAX
IPC: H01H33/915
Filed: 1977-06-20
Abstract: The circuit breaker has at least one single-phase switching unit with a cylindrical quenching chamber filled with sulphur hexafluoride. From one face of the chamber protrudes inwards a stationary contact (8) aligned with a moving, axially slidable contact, secured to one end of an actuating rod. The moving contact is surrounded by a blast piston, matching the chamber inner diameter and connected to the moving contact. The stationary contact (8) is formed by a tube whose inner end carries a tubular arcing contact (9). The moving contact consists of a hollow cylindrical support (18) of good conductivity, into which is inserted a multiple contact element (19) which end section, coupled to the actuating rod (21) are provided gas channels (22). the blast piston (15) is extended over the support end facing the stationary contact.