baber/WOPTO huggingface dataset:
Patent DE-2133700-A1 (DE)
Title: Separation of spermatozoa cells - in a method for pre-determining the sex of an unborn mammal
Inventor: LANG JOHN L
IPC: A61K35/52
Filed: 1971-07-07
Abstract: A fluid contg. living sperm cells which have residual positive or negative charges is treated so that cells having a certain polarity are immobilised and cells of opposite residue charge remain free and method comprises treating with an agent having an electrostatic charge of a certain polarity so that sperm cells having opposite polarity are preferentially immobilised in the fluid. Specifically claimed agents include sulphonated polystyrene polyelectrolyte, pref. (vinyl-benzene sulphonic acid sodium salt) and poly(vinylbenzyltrimethylammonium).
Patent DE-2141750-A1 (DE)
Title: Acetyl chloride prodn - by reacting acetic acid anhydride with chlorine
Inventor: HORNHARDT HANS DIPL CHEM DR
IPC: C07C51/60
Filed: 1971-08-20
Abstract: Title reaction is carried out at 70-100 degrees C in the presence of 5-20 wt.% of acetyl chloride previously formed. The process is economical because a valuable ClCH2COOH by-prod. is obtd. according to the equation : (CH3CO)2O + Cl2 right arrow CH3COCl + ClCH2COOH. Acetyl chloride is distilled over and condensed in the pure form; chloroacetic acid crystallises out when the vat residue is cooled. The remaining mother liquor contg. acetyl chloride can be recycled to exert the desired catalytic effect on the main reaction.
Patent DE-2153536-A1 (DE)
Title: Portable tong type spot welder - operated by remote cylinder unit
Inventor: SEEBER HORST
IPC: B23K11/31
Filed: 1971-10-27
Abstract: The welding tongs with the electrodes are connected to the operating cylinder via a linkage, which consists pref. of a Bowden cable or roll guided chains. The system results in a light, compact welding unit having a fast cycle time.
Patent DE-2223780-A1 (DE)
Title: Bi-component fibre - from two thermoplastics in film and fibre to be split and shrunk
Inventor: REIFENHAEUSER HANS
IPC: B29C48/05
Filed: 1972-05-16
Abstract: The two thermoplastic materials pass through a broad slit to give a film which is stretched while jets lay the second component in fibre form in parallel patterns on the film so that the two bond together. The composite film is split into fibrilles which are then heat shrunk, the different shrinking coefficients of the two materials giving crimped fibres with greater bulk and fullness than conventional bicomponent fibres.
Patent DE-2228606-A1 (DE)
Title: Oil well tool support table - for manually aligning tool with drill pipe and effecting preliminary coupling
Inventor: HAWKINS HAROLD ROBERT
IPC: E21B19/18
Filed: 1972-06-12
Abstract: A heavy well tool such as a drill bit is connected to the lower end of a suspended drill pipe by locating the tool on a rotary table hinged to a portable manual jacking mechanism so that whilst one operator raises the table another rotates and rocks the table to align the tool with the drill pipe and establish preliminary threaded engagement.
Patent DE-2251776-A1 (DE)
Title: Cambered roller, with radial spring assemblies - to support ends of mantle on roller core, suitable for hot-rolling rubber or plastic
Inventor: TEWES JOCHEN
IPC: F16C13/00
Filed: 1972-10-21
Abstract: Designed for heat rolling of rubber or plastic sheeting or films, the radial spring assemblies of U-shaped cross-section, support the ends of the cambered mantled on the roller core to compensate for heat and press., to give a constant rolling action on the material being treated.
Patent DE-2261817-A1 (DE)
Title: Rapidly dismantled filter for swimming pool - cylindrical paper elements held on vertical holders with removable mounting plate held in compressed seal
Inventor: HARMS JOHN F
IPC: B01D29/15
Filed: 1972-12-18
Abstract: Water enters at the base of the filter and flows up through the elements. It passes into the chamber formed by the lid and then down through an overflow pipe held in place by the mounting plate and a second seal. The cylindrical elements are retained by a threaded nut on perforated holders held in the mounting plate. This in turn is held by a rubber seal compressed by the lid into a lip on the cylindrical fitler housing. By removing a series of wing nuts, the lid is removed and the mounting plate then lifts out. The elements are rapidly changed by undoing the retaining nut.
Patent DE-2328719-A1 (DE)
Title: Piezoceramic, transversally excited oscillator - has metallic layers on top surfaces for exciting electrodes
Inventor: SCHUESSLER HANS DR ING
IPC: H03H9/17
Filed: 1973-06-06
Abstract: Metal coatings are provided on the plate faces for the excitation electrodes. In order to suppress the thickness oscillation modes in the plates, its central area is pref. excited. The plate central part is polarised in the thickness direction; or the central area is stronger polarised than peripheral areas; or at least two plate areas, pref. the central and the peripheral areas, are polarised in opposite directions. The areas with opposite polarisation directions are at least approx. equal.
Patent DE-2331247-A1 (DE)
Title: Door framework - with PVC wall and door seals and telescoping to fit wall depth
Inventor: LOCHER ERNST
IPC: E06B1/10
Filed: 1973-06-19
Abstract: At least one side of the door or window framework consists of three telescoping parts extending across the door or window plane to continuously fit various wall thicknesses and comprising a middle piece with two uprights each angling around one side of the wall edge. Pref. the uprights are chipboard coated with plastic and equipped with soft PVC seals for the wall and the door or window.
Patent DE-2347190-A1 (DE)
Title: Electromagnetic relay contacts test equipment - is used for the analysis of contact bounce
Inventor: HAHN HELMUTH
IPC: G01R31/327
Filed: 1973-09-19
Abstract: Contacts (a, r, u, fu) of the relay (P) to be tested are connected through a connecting unit (A) to a first input to a gate circuit (T) which opens at the first change of position of the contacts. The second input to the gate circuit is connected to a generator (G) which supplies high frequency pulses needed to operate a counter (Z) during the open condition of the gate circuit. The counter is connected to a memory store (S) and a controller (K) which respectively stores the counter position and gives a read-out of its instantaneous position. A filter (F) may be used to prevent any measurement of contact bounce with a duration below a preset value. The equipment can measure the duration of contact bounce for any closing or opening contact, and the duration of contact change-over. During the measurement, the gate circuit (T) is opened at the initial change of position of the contact. The instantaneous position of the contact is then measured by the numerical count of the counter.
Patent DE-2350509-A1 (DE)
Title: Bulk material unloader from ships - has grab on jib working inside bellows connected to suction filter
Inventor: CORDSHAGEN HOLGER
IPC: B65G67/60
Filed: 1973-10-08
Abstract: A crane equipped with a slewing jib movable up and down travels along the quay, while a grab travels along the jib and is raised and lowered, mechanical or pneumatic conveyors being provided on jib and crane. The grab is enclosed by a telescopic bellows, raised and lowered independently of it and connected to a suction filter, also to a transfer housing, in which a mechanical or pneumatic conveyor is mounted. The grab can travel by means of a crab to and fro between the bellows and the transfer housing, which can have a shutter acting as a feed chute to the conveyor. A slotted cover can be provided between bellows and housing, and the bellows can be equipped with telescopic tube sections inside.
Patent DE-2358825-A1 (DE)
Title: Protective device for plastic granulator plant - removing e.g. anomalous fibrous accumulations liable to block or damage plant components
Inventor: BUZGA HEINRICH
IPC: B29B9/00
Filed: 1973-11-26
Abstract: Appts. for the protection of industrial plant components, e.g., pumps, screens, centrifuges etc., during the prodn. of plastic granulates by removal of process-derived anomalous solids from the feed stream of a plastic granulate-water mixt., by passing the stream through a rotary collecting screen arranged transversely thereto, eccentrically to the axis of the screen which has a part retaining the anomalous solids and is traversed in the opposite direction to the feed stream by an off-set gas stream, comprises a rotary screen driven at slow speed by a motor via a gear box and a shaft, the screen being mounted on a support grid and bounded by a guide rim. The blockage of screens, pumps etc. by irregular balls of fibrous/lumpy matter produced e.g., by the granulator mechanism is prevented.
Patent DE-2360923-A1 (DE)
Inventor: BOYLES ROBERT LEE
IPC: G04C23/02
Filed: 1973-12-06
Abstract: An alarm vibrator control mechanism for a clock timer wherein an elongated lever extends along the lower portion of the timer for releasing an alarm vibrator at a preset time. The elongated lever is controlled by a selector shaft mechanism which is positioned at one side of the timer, a centrally located 12 hour alarm time gear and a disc cam which is connected to a units shaft at the other side of the timer. The 12 hour alarm time gear tilts the vibrator shutoff lever forwardly a few minutes before the alarm time and then the disc cam moves a right side portion of the elongated lever downwardly at the alarm time to release the elongated alarm shutoff lever from a notch which is formed in a base plate.
Patent DE-2404068-A1 (DE)
Title: Drying interior of steel compressed-gas bottles - by evacuation, with mild external heating
Inventor: KESSELS ALEXANDER
IPC: F26B5/04
Filed: 1974-01-29
Abstract: Drying the interior of steel bottles for compressed or liquefied gas is effected by evacuation of the interior and meanwhile heating from outside for a duration until the partial vapour pressure of the moisture to be dried out has fallen below a desired value. Preferably, drying is to a max. moisture content of 4 ppm. and the heating is to an average temp. of 80 deg. C until a vacuum in the vessel of less than 0.5 Torr is reached; using a multi-stage vacuum pump and a longer drying time, even lower water content can be attained. Sufficient dryness can be achieved without overheating.
Patent DE-2405692-A1 (DE)
Title: Ventilator duct fire sector sealing lock - with stressed streamlined barrier displaceably led in wider housing
Inventor: GABANYI PETER
IPC: A62C2/20
Filed: 1974-02-06
Abstract: The mechanism, for isolation of fire sections, is built into vertically or horizontally running ducts in ventilation and air-conditioning plants, with a sealing unit held in the open position by a release device. There is a housing, of wider cross-section than the ducts flanged onto its ends, the sealing unit led centrally in this, with lengthways movement permitted, is of aerodynamically favourable shape, with cross-section smaller than that of the housing but wider than that of the duct, and this is forced into the closed position by a pre-stressing device and/or the force of gravity. Its rear part may combine with the adjacent part of the housing to act as a noise insulator. A simple and reliable assembly, needing no servicing, performs a double function.
Patent DE-2412442-A1 (DE)
Title: Cable support system for suspending cables in bucket loaders - has spiralled cable suspended from guide elements beneath roof construction
Inventor: WUESTEN KLAUS
IPC: H02G11/00
Filed: 1974-03-15
Abstract: The cable support, which is used for suspending power cables in bucket loaders, connects a fixed power supply component to a pivoted component (e.g. the bucket loader) with a flexible cable wound into a spiral around one component. The spirally wound cable is held by support elements on the underside of the rotating component in a unit with a roof-like projecting construction. The elements are held by movable guide elements in the unit. The advantage of the support system lies in its safety, simplicity and the ease with which it can be repaired and maintained.
Patent DE-2418270-A1 (DE)
Title: S-Arylthioalkyl-O,S-dialkyl dithiophosphates - with insecticidal, acaricidal, fungicidal, nematocidal activity, etc.
Inventor: OSWALD ALEXIS A DR
IPC: A01N57/14
Filed: 1974-04-16
Abstract: New cpds. of formula (I) (where R1 is Me or Et; R2 is s-Bu or i-Bu; R3 is H or Me; each X is Cl, Br, Me or MeO; n = 0,1 or 2; m = 0 or 1) are pref. prepd. by (a) reacting R1O(R2S)P(O)SM (M = alkali metal, NH4 or alkylammonium) with Hal-CHR3-(CH2)m-S-C6H5-n(X)n or (b) reacting R1O(R2S)P(O)SH with CH2O and the corresp. aryl mercaptan in the presence of HCl to form (I; R3=H, m=O).
Patent DE-2422801-A1 (DE)
Title: Barium titanate zirconate ceramic capacitors - nickel oxide coatings reduced in hydrogen to form nickel electrodes
Inventor: MARSHALL GILBERT L
IPC: H01G4/30
Filed: 1974-05-10
Abstract: An unfired ceramic with high K (e.g. mixt. of titanates, oxides, zirconates, stannates) is stacked in a series of layers with an electrode between each layer, the electrodes extending to one edge, and then to the other, in alternate layers. The layers are then pressed and sintered at 1000-1400 degrees C. For the electrode, a material is used which does not react with the dielectric at the sintering temp. but which can be converted to an electrode, e.g. for ceramics sintered in air, nickel oxide alone or mixed with FeO, CoO, V2O5, SnO2, MnO etc. can be used. The oxide can be applied as a paint, the vehicle being lost in sintering. After sintering, the pressing is heated e.g. for 24 hours in hydrogen at 280 degrees C, reducing the nickel oxide to nickel, thus making a good condenser electrode. A slight redn. of the titanate occurs but this only reduces K values around 6000 by 10-15% and the power factor also remains at an acceptable level. By adding e.g. tin oxide to the nickel oxide the redn. temp. can be lowered. This process eliminates the use of expensive metals (e.g. Pt, Pd) as electrodes thereby reducing costs.
Patent DE-2423285-A1 (DE)
Title: Surface drainage channel - has metal frames shaped to side piece connected to concrete channel by rivets
Inventor: WERNER KLAUS
IPC: E01C11/22
Filed: 1974-05-14
Abstract: The channel is made of concrete which is either resin bonded or cement bonded and metal frames (3) follows the profile of the side piece (2) and protect the covering surface (3b) and side surface (3c) against damage. The metal frames (3) are connected to the surface drainage channel (1) by rivets or by a resin glue and securing anchors (5) are introduced during riveting. The metal frames are bent over on either side surfaces providing an anchoring surface (3d) for a coating which is applied. The channel is used for roads and has greater resistance to being hit by cars etc.
Patent DE-2427612-A1 (DE)
Title: Attic window with box - has covering frame connected to main frame and window wing connected to bearing with support arms
Inventor: SCHMIDT MARTIN
IPC: E04D13/035
Filed: 1974-06-07
Abstract: A covering frame of one or more parts forms the support frame for the roof struts. When the frame is mounted by screw holders on the roof struts the remaining parts of the roof struts can be sawn off. A main frame is connected to the covering frame by screws and these hold sliding hinge holders. A window wing is hinge connected to the swivel and slide bearing. Support arms are connected by the bearing at the swivel points on the main frame and are hinge connected to the bearings at the swivel points of the window display box.
Patent DE-2432262-A1 (DE)
Title: Fermentative ripening of cooked meats and other foodstuffs - using trace elements and biochemical inters to ensure optimum development
Inventor: PFEIL EMANUEL PROF DR
IPC: A23L13/40
Filed: 1974-07-05
Abstract: In the prodn. of cooked meats and other foodstuffs ripened by ferments and ferment systems, other than living micro-organisms, the ferments are added to the meat products, together with inorganic auxiliary matls. which activate, increase, and regulate the effectiveness of the ferments. In place of the inorg. matls. themselves, (in)org. cpds. and mixts. which form the auxillary matls. it can be used. Oxydases and catalases are dependent upon metallic traces and auxiliaries, and the fermentation and reduction/oxydation processes necessary for the prepn. of meat prods. are extremely dependent upon NAD, NADH, NADP, and FAD.
Patent DE-2436066-A1 (DE)
Title: Appts. for shaping cylindrical tyre carcases - with inflatable bag between two bead-centring segmented rings of variable dia.
Inventor: MENELL HANS
IPC: B29D30/36
Filed: 1974-07-26
Abstract: Appts. for converting an essentially cylindrical type carcase to a torus shape, opt. with simultaneous insertion of a belt, has an inflatable bag arranged between two segmented rings for centring the beads of the carcase. The dia. of the rings can be varied between a first dia. in which they are loosely guided between the bead and a second dia. in which the beads are stretched. Prevents eccentricity from developing in the carcase/belt during the change in shape. The finished type does not tned to vibrate at average and higher velocities.
Patent DE-2439475-A1 (DE)
Title: Analogue into digital signal conversion method - analogue signal and reference voltage during conversion period applied to integrator
Inventor: SMUTNY KURT DIPL ING
IPC: H03M1/00
Filed: 1974-08-16
Abstract: An analogue signal is applied together with a reference voltage during a conversion period to the input of an integrator clock pulses from a clock pulse generator being counted during the reference voltage application. After the reference voltage (U1) is disconnected from the integration stage (3) input (7), next integration process begins with the residual signal at the integration stage (3) output, and a mean value of the digital signal is formed over several conversion period. The comparator stage (4) determines the zero passing of the output signal (Ua). The control member (5) receives the command to open the contact (2) to disconnect the reference voltage (U1) from the input (1) of the integration stage (3).
Patent DE-2445486-A1 (DE)
Title: Dynamically balanced eccentric press - uses linearly moving weights operated by levers joined by connecting rods
Inventor: KAISER HEINZ
IPC: B30B15/00
Filed: 1974-09-24
Abstract: The ram of the press is driven by an eccentric via a connecting rod. The mass forces which are generated by the oscillating ram are balanced out by weights which oscillate in counter phase with the ram. The balancing weights are driven by a system of levers. A central lever is mounted on the connecting rod, at the opposite side of the ram. Two levers branch off at approx. 90 deg. from the top of this central lever. The two levers each have a balance weight mounted at its end and can pivot at a point half way along their length on two support levers. Instead of levers with fixed balance weights, levers can be used which slide in and move part of the frame. This part of the frame then acts as balance weight.
Patent DE-2456587-A1 (DE)
Title: Aq dispersion lacquers for electro-dip coating - from polyester imides and amido-imides contg carboxyl gps
Inventor: SHIBAYAMA KYOICHI
IPC: C09D5/44
Filed: 1974-11-29
Abstract: Prepn. of aq. dispersion paints from reaction prods. of (A) a polyester imide or amido-imide with COOH gps. in the chain or on the chain ends, the former contg. ester and imide gps. and the latter ester, imide and amide gps. in the main chain, (B) an inorg. cpd. with at least 2 OH gps., and (C) a polybasic acid or anhydride, by dissolving in an org. solvent, dispersing the soln. in an aq. soln. of a surfactant or volatile base, and removing the volatile constituents. The paints are used for electro-dip coating of electrically conductive substrates. The modified polyester imides or amido-imides give films of uniform thickness with excellent props.
Patent DE-2502231-A1 (DE)
Title: Combined high speed printing and drawing machine - has plate with solenoid actuated printing needles and step motor drive
Inventor: STRYCKER WOLF
IPC: B41J2/235
Filed: 1975-01-21
Abstract: The arrangement for printing of characters by means of an inked ribbon and printing needles is used in conjunction with stored data to prepare rapidly a text, a drawing or a combination of these. The plate (1) with rows and columns of holes (2) covers the area of the paper (5) used. These holes are uniformly distributed over the whole plate. Each hole has a solenoid (10) actuated printing needle (3) with retracting spring (11). A needle is pushed by the solenoid against the ink ribbon (7) and paper (5) and the paper support (4). The text, drawing or combination of these is made by moving the paper under the plate by a step motor. Alternatively, the printing needles can be actuated by solenoids in the paper support.
Patent DE-2506923-A1 (DE)
Title: Valve device for pressure limiting and idling - has operating valve closing element controlling flow between pressure chamber and return
Inventor: BRUNNER RUDOLF
IPC: F15B13/04
Filed: 1975-02-19
Abstract: The valve device has a pressure limiting and idling function and is used as a pressure balance in connection with a volume-regulated slide or as a safety valve with an operating valve closing element which controls the flow between a pressure chamber, connected with a hydraulic supply and one or more working chambers and a return. On the side of the closing element away from the pressure chamber, is a control chamber which contains a valve-closing spring. In the operating position, this chamber is under pressure and in the idling position it is pressure free. An additional, special idler valve (13) is arranged between the pressure chamber (3) and the return (9) and its idler valve, closing element is a pressure step-up piston (14) which faces the pressure chamber with its smaller pressure face and a control chamber (16) with its larger pressure face.
Patent DE-2507420-A1 (DE)
Title: Cobalt modified ferric oxide - with additions of phosphates or oxides of transition metals, shows reduced remanence less and good stability of coercivity
Inventor: BUXBAUM GUNTER DIPL CHEM DR
IPC: G11B5/706
Filed: 1975-02-21
Abstract: Acicular magnetic ferric oxide contg. cobalt having a high coercivity and a reduced remanence loss contains a ppt. of 0.1-5 (0.2-2.0)wt. % of oxides and/or phosphates of polyvalent metals selected from Zn, Al, Ce, Cr, Fe, Mn, Sb, Sn, Tl and Zr, esp. Zn and/or AlPO4. The magnetic oxide is made by heat treatment, reduction and reoxidation of acicular iron oxyhydroxide contg. the Co and the additive. Pref. the ferric oxide is used for making supports for high frequency magnetic records, esp. video recordings. The remanence is largely stabilised by the additives so that the coercive force falls much less during heat treatment than in prior art cobalt-modified ferric oxide. Hence magnetic tapes show an improved capacity to absorb information without excessive signal loss at elevated temps. or as a result of mechanical shock.
Patent DE-2509009-A1 (DE)
Title: Obstetrical birth forceps with limiting device - comprising sliding part between forcep arms for contact pressure (SW140676)
Inventor: SIPLI WOLFGANG DR MED
IPC: A61B17/44
Filed: 1975-03-01
Abstract: The obstetrical forceps are equipped with a device limiting the angle opening of the forcep arms and the contact pressure made on the infant's head. Pref. these parametes are controlled by use of a sliding par displaced axially into the notches of one of forcep parts. The forcep arms (1, 2) are pivoted together using a pin (3) pressed into one part (1) and an aperture in the other arm (1). The sliding part (5) slides axially in relation to the forceps and has a sharp angled surface milled into the forcep arm (2) so that when the part slides along the angled surface the angle of opening is varied.