baber/WOPTO huggingface dataset:
Patent DE-2341752-A1 (DE)
Title: Control for async. machines with static inverters - has separate regulation for inverter input voltage and rotor speed
Inventor: MOKRYTZKI BORIS
IPC: H02P23/08
Filed: 1973-08-17
Abstract: The control system for asynchronous machines with static inverters has logic circuitry to control the inverter frequency. A sensor generates a speed signal proportional to the rotor speed and a regulating circuit generates a slip signal. The speed signal and the slip signal are passed to the logic to control the inverter frequency as a function of the rotor speed. The inverter input voltage is monitored and the slip signal altered if this voltage exceeds a given limit. This variation of the slip signal occurs independently of the regulating circuit which generates the slip signal, and is in a direction which adjusts the machine so that the input voltage deviation becomes zero.
Patent DE-2347954-A1 (DE)
Title: Winch for sail operating ropes - has rotating drum with internal circular groove to accommodate disc holding drum on fixed shaft
Inventor: FLAMME KLAUS PETER
IPC: B66D1/74
Filed: 1973-09-24
Abstract: The hollow drum of the winch is mounted on its supporting pivoting bearing so that the bearing is completely enclosed and does not require maintenance. The drum body rotates on the journal shaft and completely encloses it. The drum is held firmly on the bearing pivot by the disc which engages the internal groove in the drum central bore. This disc is made from a flexible material, and the drum pushed on the disc so that the disc expands to fill the groove. The disc may have radial slots for providing flexibility on insertion. The space between the shaft and the drum bore is filled with solid sliding lining which acts as permanent lubrication material. The drum has central water draining channels for draining any water washing inboard.
Patent DE-2357544-A1 (DE)
Title: Setting indicator for rifle sight - has scale parts calibrated differently for different ammunition types
Inventor: PACHMAYR FRANK AUGUST
IPC: F41G11/00
Filed: 1973-11-17
Abstract: Setting indicator for a rifle sight has scale parts which can be connected to one of the relatively movable parts, to cooperate with indexing units and associated with the other part for indicating heights. Different scales on the different scale parts are for direct reading in values related to weapon-target distance for different types of ammunition, so that a scale is used for each ammunition type. Preferably the scales of different parts are calibrated, to give the weapon-target distance values corresp. to different calibres of rounds.
Patent DE-2362632-A1 (DE)
Title: Ski retaining strap with safety release - uses shear rivets to avoid danger of elastic rebound on separation
IPC: A63C9/00
Filed: 1973-12-17
Abstract: The complete ski retaining strap consists of a lock and adjustment member to adjust the size of the loops. The safety release or braking element is formed by a double fold in the strap and securing the folds with hollow rivets. In the event of the skier falling down and the ski having come away from the skier's foot, the ski is restrained by the strap. If the ski tends to carry on in its initial direction and exerts too high a force on the strap, the rivets are sheared and the strap extends by the length of the folds, without any elastic rebound.
Patent DE-2362729-A1 (DE)
Title: Rotatable vacuum remover for lathe swarf - has centrifugal air pump to suck swarf into hollow machine spindle
Inventor: KLEMM HEINZ
IPC: B23Q11/00
Filed: 1973-12-17
Abstract: A hollow workpiece is held in a three jaw chuck and swaf from the workpiece is sucked into the hollow driving spindle for the chuck from which they are collected at the other side of the driving device for the chuck. Section of the swarf is achieved by a radial inflow centrifugal compressor made in three sectors, one of which is situated between each adjacent pairs of chuck jaws. The sectors have peripheral forward facing scoops which pass air radially inwards and subsequently axially rearwards, through the driving spindle. An ejector effect causes air to enter the spindle through the workpiece, sucking the swarf with it.
Patent DE-2406692-A1 (DE)
Title: Frontal jointing of veneer-type sheeting - has plastic jointing strip pressed on to edges, and ground finished
Inventor: BRANDT HELMUT
IPC: B27D1/10
Filed: 1974-02-13
Abstract: Frontal jointing of veneer sections may be achieved using a binder strip of similar bending strength e.g. plastics strip glued onto it. This jointed section may then be affixed to base part and pressed to reduce the elevation of the jointed section. In this way multilayers of e.g. plywood structures may be built up. Any excess material which may overlap on the edges may be ground to provide a smooth finish.
Patent DE-2408280-A1 (DE)
Title: Motor vehicle fuel per mile meter - with current proportional to distance feeding fuel heater and temperature difference indicating fuel flow rate
Inventor: KUEHNER HUBERT
IPC: G01F9/02
Filed: 1974-02-21
Abstract: The sensor is for the direct indication of fuel consumption per mile of a motor vehicle and incorporates a pulse generator and pulse shaper which generate a current proportional to the speed of the vehicle. The current is fed to a heating spiral in the fuel feed line, where the temperatures before and after the heater are measured as a measure of the rate of flow of fuel per unit of distance, the temperature difference being inversely proportional to the consumption rate.
Patent DE-2413072-A1 (DE)
Title: Stacked recording carrier separation - involves movement against stop, releasing recording carrier and passing to removal device
Inventor: HOEFKER HEIKO DIPL ING
IPC: G06K13/103
Filed: 1974-03-19
Abstract: Both front edges of the recording carrier rest against shoulders which project into the magazine. The recording carrier is first pulled by the intermittent movement from the area of that shoulder which is at a distance from the removal roller. Arching is thus caused and it effects a movement of the recording carrier in opposed directions. The recording carrier is not pulled from the area of the second shoulder and subsequently moves in the direction of removal to the removal rollers. A feed roll moves the recording carrier in the direction of removal and a lift roller moves it in the opposite sense.
Patent DE-2419155-A1 (DE)
Title: Plastic fire door hinge - has flaps connected to plastic-coated metal brushes with adjoining faces fitted with metal rings
Inventor: WILKE HEINRICH
IPC: E05D5/14
Filed: 1974-04-20
Abstract: The arrangement consists of an external layer of plastic enveloping a steel bushing and then followed by an internal plastic-bushing, into which the metal pin is fitted. The metal rings on the faces of the plastic bushings are recessed into the plastic coating to such an extend that they do not touch. This happens only, when the plastic coating melts away and the rings serve as secondary seating surfaces. Preferably the metal rings are designed as bushes provided with collar portions, and are either made of steel or a sintered material.
Patent DE-2426337-A1 (DE)
Title: Contacting device for simultaneously contacting P.C. board contacts - has bifilar helical springs connecting opposite end contacts
Inventor: ORLOWSKY KLAUS
IPC: H01R11/18
Filed: 1974-05-29
Abstract: The contacting device, for simultaneously making contact to several contact pads on a p.c. board or similar, consists of an array of spring loaded contacts each of which is located in its own channel. Each channel (3) contains a bifilar spring (1, 2) whose ends are connected, or form part of, external contacts (14, 15). The contact pieces are mounted through insulating end studs (8) that move relative to the channel's end stoppers (5, 6). The bifilar springs allow the matrix to be reduced in size by reducing the dimensions of the individual channels. The springs also ensure that pressure contact is even both within each contact and in the overall distribution so that variable contact resistances are avoided.
Patent DE-2436206-A1 (DE)
Title: Explosion preventing pipe insert - has tubular shell reinforced with longitudinal partitions andremovable middle part
Inventor: SMETANCA VLADIMIR
IPC: A62C4/02
Filed: 1974-07-26
Abstract: The design concerns a fitting inserted into an explosive gas-carrying piping. The shell (1) of the insert is tubular with tapered connections to the piping sockets (2) which are flanged to the rest of the piping (3). The body of the tubular shell is made of two parts held together by a flange assembly (9). The sockets (2) have a horizontal partition (4), carrying ribs (5) inside the tubular shell. Between the two parts of the tubular shell a removable middle part (10) is fitted containing a system of ceramic plates (7) or rods (11). The inside of the tubular shell is also fitted with reinforcing partitions (4) containing ribs (5). The system acts as an extinguishing and attenuating element in case of an initial ignition.
Patent DE-2436550-A1 (DE)
Title: Hydraulic servo mechanism - symmetrical construction suits four different assembly arrgts
Inventor: DOERING MANFRED DIPL ING
IPC: B62D5/24
Filed: 1974-07-30
Abstract: The hydraulic servo-mechanism consists of an axial piston that forms the nut for the steering screw, and a pressure chamber designed to allow four different types of assemblies to be built up from the same components. These are: servo-rod flange on the right of housing, steering rod axis below housing; servo-rod flange on the right of housing steering rod axis above housing. Servo-rod axis on left of housing steering rod axis below housing, servo-rod flanges on left of housing steering rod axis above housing. The axis of the servo-piston is in line with the main body of the housing. It can be fitted easily to many different types of vehicles and installations.
Patent DE-2448610-A1 (DE)
Title: X-Ray equipment housing - has sub-units interconnecting electrically and mechanically to give composite self-sufficient housing
Inventor: ANGEL D I HARALD
IPC: H02B1/46
Filed: 1974-10-11
Abstract: The housing, for X-ray and similar equipment, is constructed from separate identical sub-housings that interconnect electrically and mechanically to give a composite housing that is self-sufficient -- i.e. stands alone and does not need to be enclosed in another housing. Each sub-housing consists of a box open at two sides to allow it to be locked to an identical box to form a single unit. Each box has a partition wall and a hinged lid. The lid clips to the front face of each box and is hinged at the rear with an arrangement that allows it to be removed completely. Ribs on the inside for split-tube linking members, and slots on the outside for keyin rods enable adjacent sub-housings to be interlocked.
Patent DE-2450009-A1 (DE)
Title: Phase shifter with pin diodes - for waveguides has at least two pin diodes included in the microwave field, or with are coupled to it
Inventor: HAMILTON COLIN DR
IPC: H01P1/185
Filed: 1974-10-22
Abstract: The diodes are connected one behind the other in the direction of propagation and a known device, e.g. a short-circuited transmission line, is connected to each diode to ensure that diode reactances are equal in value but of opposite signs when they are in their blocked and conducting states. There are transformation means which are used to match the input and output line characteristic impedance to that of the phase shifter in the effective range of the diode. The device may include a chebycheff transformer, which is produced in the form of a ridge waveguide (1), held by insulating screws on top of a plastics insulating foil.
Patent DE-2453224-A1 (DE)
Title: Electrical circuit board of glass fibre reinforced foam - of vinyl chloride polymer or copolymer opt with facing sheets
Inventor: HATA AKIO
IPC: H02B1/015
Filed: 1974-11-09
Abstract: A base plate for use an an electrical circuit board, switch panel or the like, consists basically of foamed vinyl chloride resin reinforced with glass fibres of generally elongated form exceeding 10 mm length and constituting 5-30% of the board weight; the plastics itself is foamed to give an overall density for the board of 1.10-0.35 g/cm3. In one embodiment(as shown), a number of glass fibre mats are spaced at intervals within the body of the foam plastics and parallel to its surface. One or both faces of the board may have a facing sheet, esp. 0.1-1.0 mm thick, of non-foamed vinyl chloride, pref. having a ribbed or roughened external surface. For all kinds of electrical boards onto which equipment is to be mounted, such as relay boards, switchboards and the like. The use of foam plastics is considerably cheaper than steel and possesses, by comparison with wood, the advantages of non-absorption of water, ease of manufacture and consistency of the starting material. In the variant, the glass fibres are uniformly distributed throughout the thickness of the foam. The resin may initially comprise a plasticiser constituting >15% of its total weight.
Patent DE-2457057-A1 (DE)
Title: Valve limiting maximum permissible pressure - is for insertion is a pressure pipe between a pressure medium source and a load
Inventor: ERDMANN HANS
IPC: G05D16/10
Filed: 1974-12-03
Abstract: The valve has a control piston pressed by the medium against a control spring force. It is kept open by a valve until the maximum permissible pressure is reached. A no-return valve blocked in the load direction is in parallel with the above valve. A throttling channel (21) connects an outflow chamber (18) connected with the load, to a control chamber (9), connected through the no-return valve (22) to the pressure medium source. Pressure in the control chamber (9) presses on the valve in the control spring (5) direction, and pressure from the outlet chamber (18) presses on it in the opposite direction.
Patent DE-2457999-A1 (DE)
Title: Oscillating motor circuit with temperature sensitive resistor - controls motor frequency and is located in AC supply generator feed back loops
Inventor: TILLMANN UDO
IPC: H02M7/538
Filed: 1974-12-07
Abstract: The oscillating motor circuit has the frequency of the a.c. supply generator altered as the motor frequency changes and altered as the temperature of the motor fluctuates. A temperature sensitive resistor (R16) in good thermal contact with the motor (M) is used as temperature sensor and connected into the circuit that determines the supply frequency. The generator contains an amplifier (3) with the temperature sensor in its inverting-input feedback loop and two fixed resistors in its non-inverting input feedback loop. The frequency limiting circuit holds the motor frequency constant when it exceeds a given limit.
Patent DE-2458605-A1 (DE)
Title: Electrophoretic diffusion speed for dispersed particles - is determined through cell arrangement giving reflected beam variations
Inventor: DITTER WALTER
IPC: G01N27/447
Filed: 1974-12-11
Abstract: The electrophoretic displacement, or diffusion, speed measurement is of dispersed particles in moist or dry media taking place in a cell with condenser electrodes (1, 2) separated by pillars (3) and in which cell the dispersion is formed with a front (6). One of the condenser plates (2) is permeable to measuring light used and is of silicon, germanium, glass or quartz, depending on the wavelength of traversing light. A monochromatic incident beam (5) meets the dispersed front (6) to form the resultant re-emergent beam (7). The intensity of the latter depends on the displacement, or diffusion, speed of the dispersed particles and can be used for its determination.
Patent DE-2460522-A1 (DE)
Title: VHF and UHF amplifier for antenna and cable TV - has capacitive and inductive elements formed by discrete line sections
Inventor: HOFFMANN REINMUT DIPL ING
IPC: H03F3/60
Filed: 1974-12-20
Abstract: The VHF and UHF amplifier, for a common antenna and cable television system, has the series inductance and parallel capacitance forming the input and output sections of the cascaded transistor stages constructed from discrete series-coupled line sections of appropriately tuned lengths and wave impedances. Short sections of line are connected into the transistor feed lines and dimensioned to give an inductance of the order of a few nH. The amplifier has few components and this leads to a reduction of interactive interference.
Patent DE-2460846-A1 (DE)
Title: Pallet for transporting good with cranes - having rectangular floor pillars and hinged sides
Inventor: EGER FRIEDRICH
IPC: B65D19/10
Filed: 1974-12-21
Abstract: Vertical pillars (3) are fixed to a rectangular floor (2) with walls (9) between them. At least one wall element which can slide or swing between the posts, has extended pivot arms (15) which locate in a vertical track on the posts. A locking device (17, 18) at the top locks the wall element to the post in a vertical position. One of the wall elements can also consist of two doors (8, 8a) mounted to the pillars on hinges (11-13), with a locking deice (14) at the bottom. U-shaped lifting hooks (6) at the top of the pillars will also locate a second pallet stored on top.
Patent DE-2510110-A1 (DE)
Title: Communicating unit for deaf, dumb and partially sighted people - has keyboard whose output is recorded on interchangeable coiled spool
Inventor: NAGATA SABURO
IPC: B41J2/32
Filed: 1975-03-07
Abstract: A printing unit records the results of keyboard operation on a recording band which is driven by suitable mechanical means. A cassette is incorporated in the unit and comprises a band supply spool and a take-up spool and a side window through which the recorded symbols can be read. In a modified design a symbol reading head can be attached to a band output stage and can, for example, convert the visual symbols to tactile symbols which can be interpreted by a partially sighted person using his or her finger. In this degisn, the band can emerge from the compact keyboard unit and be collected on an externally mounted take-up spool.
Patent DE-2512408-A1 (DE)
Title: Hand or foot operated suction device for medical use - operated by moving press plate acting on piston in suction cylinder
Inventor: SIEGEL RUDOLF WENZEL JOSEF DR
IPC: A61M1/00
Filed: 1975-03-21
Abstract: Suction device capable of being operated by either hand or foot, in which during the pressing down of the pressure plate (5), a suction stroke is produced through a movable suction cylinder (7) sliding along a suspended cylinder (1). The pressure plate may be produced as an angle lever which acts on a movable piston in a rigid suction cylinder. Further alternatives provide for angle levers below the pressure plate moving the piston in a fixed cylinder. The stroke of the pressure plate can be limited by stops which are adjustable as required. The pump is simple in construction, quick to be taken to pieces and easily transportable.
Patent DE-2512490-A1 (DE)
Title: Rocker switch with switching lever - has locking bolt in inner lever end with two lugs as bearing elements
Inventor: WASMEIER ALBERT
IPC: H01H23/14
Filed: 1975-03-21
Abstract: The rocker switch has a switching lever movably mounted in a two-part housing, locking bolt being provided at the inner end of the externally operated switching lever. The switching lever carries in its middle region a lug (8) on either side, serving as a bearing element. This lug is pressed by the force of a spring (10) mounted in the switching lever against a second bearing element (9') fixed in the housing and forming a counterbearing. The spring prestresses a locking mechanism (11, 12) for latching the switching lever (5) in its both end positions. Preferably the two lugs are of cylindrical shape and abut at the outer end a channel (9), located next to the lever in the housing upper part (1).
Patent DE-2514140-A1 (DE)
Title: High bit rate modulated coherent radiation - is generated by two optically coupled injection lasers of different q-factors
Inventor: RUSSER PETER DR ING
IPC: H01S5/12
Filed: 1975-03-29
Abstract: Coherent radiation of mode purity and modulated with a high bit rate is produced using two optically coupled, but separately energisable injection layers. The first injection laser (1) of high optical quality and high spectral purity of its output radiation is continuously under direct current in such manner as to be energisable above its threshold value. The second injection laser (2) of lower optical quality, as compared with the first laser, is on one side biased by a direct current and additionally energised by a modulation current, superposed to this direct current. The two lasers are at negligible spacing and the radiation emitted by the first laser active zone (10) appears mostly at the laser active zone (20) of the second laser.
Patent DE-2516417-A1 (DE)
Title: Organic fertilizers prodn. - by composting mixts. of organic waste materials, clarification sludge and nitrogenous cpds.
Inventor: VARRO STEPHEN DR
IPC: C08F2/34
Filed: 1975-04-15
Abstract: In the prodn. of organic fertilizers which are storage-stable for a prolonged time and are suitable for long-distance transport by composting mixts. of organic waste materials, clarification sludge and nitrogenous cpds., an aq. soln. of the reaction prod. of NH3 and H2SO4 is introduced into the composting receptacle during the composting process. It is pref. to add the reaction prod. as anhydrous NH3 and H2SO4. The prod. is a stable and hygienic organic fertilizer with a nitrogen content approaching that of inorganic fertlizers.
Patent DE-2522465-A1 (DE)
Title: High accuracy chuck for workpiece inspection - has cylindrical work surface gripped by balls pushed radially inward by taper sleeve
Inventor: PAUL HERBERT
IPC: B25B5/14
Filed: 1975-05-21
Abstract: The cylindrical workpiece is pushed into the inner ball cage and presses balls against the conical surfaces of sleeves which are supported in ball cages, which, in turn, slide in the outer sleeves. A cambered stop in the end face of the sleeve abuts against the shoulder of the workpiece and prevents any misalignment of the chuck. The compression spring between the sleeves ensures that the front sleeve makes contact with the balls to provide accurate centering of the workpiece within the chuck. The device is particularly useful for handling large numbers of mass produced articles.
Patent DE-2525293-A1 (DE)
Title: 2-fluoroalkane phosph(on)ates prodn. - by radical catalysed addition of fluoroolefins to phosphorus hydrogen cpds, useful e.g. as insecticides
Inventor: BLOCK HANS-DIETER DR
IPC: C07F9/32
Filed: 1975-06-06
Abstract: Prepn. of 2-fluoroalkylphosphorus cpds. of formula (I) comprises reacting fluorolefins (II) with P-H cpds. (III) in presence of usual radical initiators at 50-300 degrees C; (R1 and R2 are 1-12C alkyl, or where a or b = 0, is not >10C aryl, R3 = H, F, Cl or is not >12C hydrocarbyl; X = O or S, a and b = 0 or 1). (I) esp. 2-fluoroalkane phosphonates, are known insecticides and are also intermediates for insecticides, extractants for metal ions from aq. solns. and anti-corrosion agents. Process gives (I) in almost quantitative yield and of very high purity. Pref. reaction is at 100-200 degrees C using (III):(II) mole ratio 0.1-1:1 and 0.5-5 mole % initiator. In an example, reaction of 7.7 kg dimethylphosphite and 1.38 kg vinyl fluoride in presence of 190 g t-butylperoctoate gave a 92% yield of dimethyl 2-fluoroethane phosphonate.
Patent DE-2525840-A1 (DE)
Title: 3-Hydrazonomethyl cephalosporin antibacterials - prepd. from corresp. 3-oxo cephem and a hydrazine
Inventor: YOSHIOKA MITSURU
IPC: C07D501/04
Filed: 1975-06-10
Abstract: Cephalosporins of formula (I): (where A and B are each H or an amino-protecting gp.; X = OH or carboxyl-protecting gp.; Y = H, halo, alkyl, alkoxy or alkylthio; R = H or alkyl; Z is =N.NR1-R2; R1 and R2 are each H, opt. substd. hydrocarbyl, acyl, or -C(=M1)MR3; M and M1 are each O or S; R3 = hydrocarbyl, or R1 and R2 can be joined directly or via a heteroatom; m = 0 or 1 and dotted line indicates a double bond at 2 or 3 posn.), are prepd. from corresp. 3-COR cpds. by reaction with H2Z. (I; m = 0) are antibacterials for prophylactic or therapeutic treatment of humans, animals and plants or as disinfectants; and (I; m = 1) are inters.