baber/WOPTO huggingface dataset:
Patent DE-2455705-A1 (DE)
Title: Magnetic tape cassette - has housing with window in circumferential wall for magnetic head access (PT171075)
Inventor: ZACAROLI EDWARD C
IPC: G11B23/087
Filed: 1974-11-25
Abstract: The window allows the magnetic head access to the magnetic tape. The tape reel is accommodated in the housing and the magnetic tape is guided along a path leading passed the wind out. The front surface of the magnetic tape in the area of the wind out faces outwards. The housing contains a pressure element which is made of material of high magnetic permeability and which engages the back of the magnetic tape behind the window. The pressure element is pressed against the magnetic head. The cassette (10) consists of a flat rectangular housing (11).
Patent DE-2501603-A1 (DE)
Title: Vacuum degassing liq metals before casting - using electromagnetic pump and vacuum chamber, suitable for degassing aluminium alloys
Inventor: PUSCHAILO LEONID P
IPC: B22D11/18
Filed: 1975-01-16
Abstract: Device for the vacuum treatment of molten metals, consisting of a vacuum chamber located above an electromagnetic pump used to pump the metal into the chamber via an inlet pipe and to remove the metal via an outlet. The novelty is that the electromagnetic pump is provided with a two-ring chamber, the oulet for the molten metal being connected under the central section. A pipe is pref. connected to the pump outlet for carrying the vacuum treated metal to a mould, the pipe being raised and lowered to control the amt. of metal supplied to the mould and a bush with a calibrated bore is pref. located in the pipe leading to the pump. Vacuum degassing of metals, e.g. Al and its alloys before the semi-continuous or continuous casting of ingots or the dosing of metal into die-casting dies or sand moulds.
Patent DE-2510380-A1 (DE)
Title: Gas discharge lamp using powdery materials - uses water glass as binder for powdery material or getter elements
Inventor: BUSCH LOTHAR
IPC: H01J61/26
Filed: 1975-03-10
Abstract: Water glass is used of fastening powdey materisl or small solid elements, such as getter or amalgam tablets in the production of the gas or metal vapour discharge lamps. Preferably a suspension of the powder is sodium and/or potassium water glass solution is used as the basic material for this process. The water glass solution hs typically a composition corresponding to the German pharmacopoeia, 6 with a density of 1.35 to 1.39. The water dilution ratio may be 1 : 15 to 1 : 10. The powdery material may consist of metal or metal compositions powders such as various getter materials or emitter substances for the electrode. The solid elements may be in the form of a ring, a platelet, or wire structure for various purposes.
Patent DE-2513293-A1 (DE)
Title: Microphone mounted remote from sound cine camera - is connected to camera by radio transmission link or IR transmission link
Inventor: SANDL DIETER
IPC: G03B31/00
Filed: 1975-03-26
Abstract: The microphone (6) converts in the usual way the sound into infra-red waves radiated by an i.r. sender, and the microphone is placed within the camera objective (2) shooting angle so that it appears in the picture, it may be on a stand or hand held. The I.R. moves radiated by it reach the objective (2), are deflected from the objective light path by mirrors (4, 7) and applied to an I.R. receiver (9). The mirror (4) is transparent to visible light, which passes straight through onto the film to form a real image. The second mirror (7) reflects visible light and is transparent to I.R. The radiation (8) passing through the second mirror (7) falls on a photocell (9).
Patent DE-2522210-A1 (DE)
Title: Rotary switch with position indicating lamp - has indicator windows along circle arc with lamp on radial protrusion of switch shaft
Inventor: KLEINBOEHL HELMUT
IPC: H01H19/02
Filed: 1975-05-17
Abstract: The incandescent lamp, indicating the rotary switch position, illuminates display windows with appropriate symbols. The windows (20) are arranged in an arc about the switch shaft (6) or the actuating knob (8) on the switch front plate (4). The incandescent lamp (14) is mounted on a radial protrusion (12) of the switch shaft, having a radius corresponding to the arc of the display windows. Preferably the switch shaft is fitted with an extension (26), extending beyond the switch housing bottom (10), which carries terminals (28, 30) for the incandescent lamp leads. The lead wires extend through the switch shaft and the protrusion and they may be pressed into these parts.
Patent DE-2523968-A1 (DE)
Title: Shaft furnace for recovery of heat - or generation of combustible gas, from e.g. straw, wood-waste, cocoa husks etc.
IPC: C10B53/02
Filed: 1975-05-30
Abstract: The specific. describes a process for dry distillation, gasification and/or burning pref. organic materials moving downwards in shaft-type enclosures. The material can be in discrete form (e.g. logs of wood), or in the form of bundles of e.g. woody or fibrous stalks, baled straw, bagasse etc. or in particulate form, e.g. shells, husks, fibres, shavings, chips, granules and/or powders such as chopped straw, wood wool and sawdust. The condition of the feed material is controlled by an assembly of solid particles in the zone of the shaft in which the thermal and related reactions occur. In particular the bed of solid particles gives rise to gas permeable layers in which the reaction takes place, which layers support the feed material and are retarded according to the feed rate. Used for the recovery of combustible gases or of heat (in the form of hot water or steam) from naturally occuring combustible feed materials. The appts. is similar to gas generators produced during the war for driving internal combustion engines but has the advantages that the reaction rate is more easily controlled and ash is prevented from being carried over with the combustible or flue gases generated.
Patent DE-2524098-A1 (DE)
Title: Cutter holder for large lathes - tool store for plate shaped cutting tools
Inventor: COTTA RAMUSINO FRACESCO
IPC: B23Q3/155
Filed: 1975-05-30
Abstract: The transfer arrangement for the tools from the tool store to the machine consists of a connecting rod which moves at right angles to the centre line of rotation of the lathe. The connecting rod has an enlarged end. The rear faces of the cutting tools have 'T' slots. The selected tool is pushed with its 'T' slot over the enlarged end of the connecting rod. A block with cut-out is mounted on the rear end of the connecting rod. A lever engages with the cut out in the block. A hydraulic cylinder pushes a wedge piece against a roller mounted on the other end of the lever so that the connecting rod is pulled back and locks the cutting tool in position.
Patent DE-2525800-A1 (DE)
Title: Vaporisation of lng by indirect heat exchange - with heat transfer medium heated by direct exchange
Inventor: WIESENTHAL PETER VON
IPC: F28C1/02
Filed: 1975-06-10
Abstract: Vaporising LNG comprises passing the LNG in indirect counter flow heat transfer with a heat transfer medium which is subsequently warmed by passing in direct counterflow contact with hot combustion gases rising in a tower with an enlarged heat exchange surface. The explosive hazards of direct fired furnace vaporisation are avoided; large quantities of water are not required, ice formation is avoided, and only a small heat exchanger is required.
Patent DE-2528662-A1 (DE)
Title: DC voltage transformer employing chopper circuit - allows operation down to no- load condition
Inventor: KORN JOEL DR ING
IPC: H02M3/335
Filed: 1975-06-27
Abstract: A d.c. voltage transformer operating down to the no load condition, also has an error detector (AF) typically containing an operational amplifier which has a reference voltage for example from a Zener diode, on its inverting input and the actual output voltage on the other input. The detector output is a constant frequency with a mark space ratio related to load, and is taken to one terminal of an AND gate. The second AND gate input is derived from a synchronously coupled astable multivibrator of fixed mark space ratio. The AND gate output controls the base of the switching transistor which determines the amount of energy admitted to the power circuits of the converter. by the addition of transformers and inductively coupled multivibrators the output voltage may be isolated from the input.
Patent DE-2529895-A1 (DE)
Title: Wide angle driving mirror - with half spherical mirror fitted to larger plane mirror
Inventor: ZDOBINSKY FRANTISEK
IPC: B60R1/08
Filed: 1975-07-04
Abstract: The external driving mirror has a large plane section on which is fitted a smaller curved section forming a half sphere. The spherical surface forms a convex mirror and enables the driver to view through 180 deg. rearwards so that all dead spots are eliminated. The mirror can be fitted to all vehicles and prevents accidents. It is useful in overtaking and for turning out of blind openings.
Patent DE-2534203-A1 (DE)
Title: Lock for tilting and rotating windows - has hook lever preventing wrong actuation or inadvertent closing
Inventor: ROTH ERNST
IPC: E05D15/52
Filed: 1975-07-31
Abstract: The locking arrangement for rotating and tilting windows and doors has at least on one of the vertical frame parts, pref. on the lock side of the panel, a locking arm which acts in conjunction with the support on fixed frame. The locking arm is pivoted on a horizontal pin which can be displaced by an actuating handle and an actuating rod. The mechanism prevents inadvertent closing of the tilted panel. The locking arm (6) has a hook shaped extension arm (20) on the end held on the pin. The extension arm faces locking notches (22). The locking arm (6) has a spring element which tends to push the free hooked end (21) of the extension arm (20) has an operation lock into the notches (22).
Patent DE-2537291-A1 (DE)
Title: Shoe sole and heel do it yourself repair - using liq. mixt. of prepolymer and hardener
Inventor: WILHELM GERHARD DIPL CHEM DR
IPC: A43B13/00
Filed: 1975-08-21
Abstract: Compsns. for repairing shoe soles and heels consists of a liq. mixt. of prepolymer and hardener, and hardens to a solid polymer at room temp. The mixt. is cast onto the worn part, surrounded by a projecting adhesive tape strip, to protect the edges. Pref. prepolymers are polyurethane prepolymers contg. NCO end-groups. Mixt. is partic. useful and economical for do-it-yourself application. Polyurethane prepolymers harden quickly, e.g. in 24 hours. The polymers adhere well, resist wear, are elastic and have high creep strength depending on time.
Patent DE-2538263-A1 (DE)
Title: Wardrobe door lock - has cylindrical protrusion fitting in door recess and needing only additional key hole fitting
Inventor: DESSCHANS DIDIER
IPC: E05C1/06
Filed: 1975-08-28
Abstract: Lock has plastics rectangular housing with metal lid and on opposite side a cylindrical protrusion for registration in door. The housing has a one piece slider and striker bolt. Between inner base of protrusion and slider is a cylindrical disc with chamfered edges and two resilient tongues with peripheral lugs which fit in housing wall recesses. Disc centre is cruciform with bush for key aperture. Key ward fits over cruciform arms and grooves in protrusion base part of housing. Disc has eccentric mounted pin which is moved into a blocking position when door is opened to prevent key withdrawal.
Patent DE-2551969-A1 (DE)
Title: Thin mica window production - by erosion in electric field of mica disc soldered to high nickel alloy grating
Inventor: SCHUBERT WOLFGANG DIPL CHEM DR
IPC: B28D1/32
Filed: 1975-11-19
Abstract: Prodn. is by erosion of material from the surface of mica discs. The disc is fixed to a support grating, made of a high-Ni alloy, to which it is soldered by glass solder. These materials have expansion coeffts. similar to mica. Mica windows can thus be produced with a thickness 2 mu (down to 0.5 mu) at a dia. of 20-30 mm (c.f. 2.4-3 mu of prior art).
Patent DE-2554783-A1 (DE)
Title: Radial piston pump with cylinder block fixed in housing - has operating cylinders in star shape formation and pistons radially adjustable
Inventor: ERDMANN HANS
IPC: F04B1/04
Filed: 1975-12-05
Abstract: Radial piston pump with a fixed cylinder block located inside a housing in which the operating cylinders are arranged in star shape. The operating pistons positioned radially adjustable in the operating cylinders are fitted with ring grooves at their ends projecting from the operating cylinders and adjoining a drive eccenter. A coupling ring fits into the grooves and the coupling ring (13) is secured on the housing (1) against turning round the turning axis of the drive eccenter (10). The coupling ring (13) is guided in a first movement direction within the plane of the coupling ring on a coupling element (14) with the latter guided in a second movement direction at right angles to the first on the housing (1).
Patent DE-2556829-A1 (DE)
Title: Gear wheel type engine for gaseous fuels esp. for hydrogen - uses water dissociation to recover fuel for recycling in a closed circuit
Inventor: BREUHAMMER HORST
IPC: F02B53/02
Filed: 1975-12-17
Abstract: Gear wheel type engine for gaseous fuels as in 2552948 in which, for using hydrogen as the fuel, a gas bottle (3) is provided for starting and to make good losses. Gas from this flows, via a mixing and metering device (5), to the pedal (2) operated flow regulator and ignition unit (4). The steam then formed flows into the gaps between the teeth flank, turning the wheels. It then escapes into the sump containing water, plus additives to promote lubrication, plus a catalyst which, together with the residual heat in the steam, encourages dissociation of the water into hydrogen and oxygen. These gases are collected and processed, under electronic control, in the mixing and metering device (5) to produce a combustible mixture which is then pumped (electrically) back to the ignition stage (4). Ignition timing is controlled by an electronic sensor (6) on the engine.
Patent DE-2559673-A1 (DE)
Title: Video playback unit with noise suppression circuit - responsive to fault identification pulses above given duration
Inventor: BAKER ALFRED LYNN
IPC: H04N9/882
Filed: 1975-11-17
Abstract: The playback unit has a frequency demodulator responding to the carrier wave provided by the playback circuit to provide a demodulated signal within a given band, used to supply the video signal output. Means are connected to the frequency demodulator, to identify instantaneous frequency variations at the input of the demodulator, relative to a given frequency variation range, and further means provide pulses indicating a fault in response to the signal from the identification means. A signal for noise suppression is provided in response to fault identification pulses of above a given duration. A further circuit responds to the noise suppression signal, to prevent the production of the output video signal by the signal processing circuit.
Patent DE-2601241-A1 (DE)
Title: Conference system for private PAM telephone exchange - stores voice information at one subscriber circuit for transmission to other subscriber circuits
Inventor: REUSCH HARTMUT
IPC: H04M3/56
Filed: 1976-01-14
Abstract: The conference system, for a private PAM telephone exchange, has a receive and a transmit switch, a subscriber counter and transmit or switches to receive speech information. During formation of a conference connection, fixed addresses accept alternate samples of the amplitude of a subscriber circuit signal. The sum of the speech information of this subscriber circuit is then passed on to the other subscriber circuits. Retaining elements and resistor networks are used for storing and summing and are arranged so that each receive amplifier is connected over the resistor network to each transmit amplifier (with the exception of its own transmit amplifier).
Patent DE-2604293-A1 (DE)
Title: Forming homogeneously orientated liq. crystal films - by applying to the confining substrate an orienting surfactant e.g. a polyvinyl alcohol deriv.
Inventor: BANNIKOV VLADIMIR STEPANOVITSC
IPC: G02F1/1337
Filed: 1976-02-04
Abstract: A homogeneously orientated film of a nematic liq. crystal (I), confined between 2 plates, is formed by the influence on the molecules of (I), of an orientating matrix applied to the surface of the plates. The matrix consists of 1 monomolecular layer of surfactant (II) which, before application to the plaes, is formed at a liq. -gas phase boundary and after application, is thermally treated at 80-180 degrees C. (II) are esp. of formula RX(CH2)1Y (IIa) or are polyvinyl alcohol derivs. of formula:-(choh.ch2)n'- (CH2OX'.CH2)m' (IIb) (R = CnH(2n+2k-m)Zm. n = 12-37. 0 m 2n. -3 k 1.Z = F, Cl or Br. X = CH2, CO, O, S, CH=CH, or > C=CH2. 1 = 0-5. Y = OH, COOH, COOCH=CH2, OCO.CH=CH2, OCO.C(CH3)=CH2 or, provided n 18, also SO3H, PO3H2 or Si(OCH3)3. 20 m' n' = 20-10000. X' = COCH3, COCF3, benzoyl, cinnamoyl, CH3, C2H5, allyl, 2,3-epoxypropyl). Both homotropic (using (IIa)) or homogeneous (using (IIb)) orientations can be achieved over a wide temp. range which improves the characteristic voltage-contrast curve of teh cell and reduces its relaxation time. The matrix tends to 'smooth out' any irregularities in the surface of the plates.
Patent DE-2605443-A1 (DE)
Title: Electric steam iron with handle surrounding water tank - with insert contg. water inlet hole mounted in front handle support
Inventor: RADER ARMIN ING GRAD
IPC: D06F75/14
Filed: 1976-02-12
Abstract: The iron comprises a water tank surrounded by a handle in the front support of which is mounted an insert with a water inlet opening. The lower front edge of the insert is stepped, and the upper surface of the insert is provided on each side with a web extending in the direction of the depth of the insert. After insertion in an opening in the handle support, the insert is pressed firmly by its stepped front edge against the lower edge of the opening, with the webs engaging in clamping relationship beneath projections on the inner wall of the handle support. Pref. associated with the stepped edge of the insert are one or more projecting pins which engage behind the lower edge of the opening after fitting the insert in the opening.
Patent DE-2609586-A1 (DE)
Title: Stored heat compensating system in toaster - uses temp. sensor switching in ballast resistors to reduce current through toasting resistors
Inventor: KRATOCHVIL HARALD
IPC: A47J37/08
Filed: 1976-03-08
Abstract: The toaster has a simple compensating device to compensate for heat stored by the toaster. The bread is located between two plane parallel heating elements each consisting of a zigzag resistance wire. The compensating device contains a temp. sensor (22) that switches ballast resistors (16) in series with parts of the heating elements when the temp. inside the toaster reaches a given level and thereby reduces the heating effect of the elements. The ballast resistors are mounted on the same boards as the heating elements and extend the length of the boards above the heating elements. Alternatively, the heating elements may be in parallel such that one of them can be switched out.
Patent DE-2610011-A1 (DE)
Title: Production of large area cross frame grid - is for disc seal discharge with tubes grid wires arranged in two layers above each other
Inventor: ALPKONLAR ERSAN
IPC: H01J9/14
Filed: 1976-03-10
Abstract: Grid wires of a refractory metal or alloy are attached to a frame and arranged in two layers of parallel wires, so that wires in the two layers are at any angle with each other, are soldered at crosspoints, and are coated with at least one metal coat. Grid wires resting on the frame are joined to it by heating zones of the frame. Wires so connected are gold plated, and the grid is then pressure sintered for joining of crosspoints. The film thickness is between 5 mum and 50 mum and the temperature range for sintering 750 to 950 deg.C. The grid wires are typically of tungsten rhenium alloy.
Patent DE-2615028-A1 (DE)
Title: Uranium enrichment by sepn. nozzles in foil packets - clamped between continuous cover plates with adjustment flexibility between packets
Inventor: CYRON THEODOR ING GRAD
IPC: B01D59/18
Filed: 1976-04-07
Abstract: A separation tube contains fine separation nozzles formed in sandwiches (packets) of thin foil clamped between cover plates. The cover plates have bores through them, providing communication between the feed side and the foil packets, also between the foil packets and the enriched product side. Each cover plate consists of a continuous metal strip extending the whole length of the tube; opposite each foil packet, i.e. in the section shown, each cover plate has a flat bearing face pressing against the packet, pref. formed as an indented through in the cover plate. Between the foil packets (i.e. in the region of transverse discharge of depleted product) the cover plates are transversely grooved (indented) to give them flexibility. There are pref. also longitudinal grooves at the edges. For uranium hexafluoride enrichment. No special seals are required, because the flexibility of the plates ensures that they bear tightly on the packets.
Patent DE-2616223-A1 (DE)
Title: Filling and flatting machine using wood pulp and varnish mixtures - has cylindrical container with flatting knives pressed against work piece
Inventor: KUCH THEO
IPC: B05C3/18
Filed: 1976-04-13
Abstract: The filling/flatting machine is for wood pulp/varnish mixtures, esp. suitable for the priming of solid timer surfaces. A hollow cylindrical container (1) is retained in a holder, and pressed via a unit (5, 6) onto the surface of a work piece (8) passing below it. The container has an internal driven turning unit for flatting knives (15) moving across the workpiece surface. The turning unit consists of a shaft (11), retained at the top (4) of the holder (3). The shaft has lower retainers (14) for four cross-wise positioned flatting knives. The knives are dimensioned, so that they rotate within a circle corresponding in size to the circular container. The shaft is pressed against the workpiece by a helical spring (16), so that the knives move across it at a certain pre-tension.
Patent DE-2616858-A1 (DE)
Title: Photocopier print copy material replacement supply - comprises series of cassettes containing material and feeding devices
Inventor: KOMORI SHIGEHIRO
IPC: B65H1/00
Filed: 1976-04-15
Abstract: A supply replacement device for use in a photocopying device has several cassettes within which copy print material can be contained and a cassette holder element by means of which the cassettes can be maintained in their relative operating positions. A feed device with a control system governs the stepwise feed of copy print material and a further device selectively moves the cassette holder element between at least two postions so that the feed device can operate upon it to feed print copy material from the cassette.
Patent DE-2619055-A1 (DE)
Title: Injector pump control compression ignition engines - use actuator rod movement which is restricted during start up by interlock solenoid
Inventor: KOLB ULRICH
IPC: F02M59/44
Filed: 1976-05-03
Abstract: An electromechanical interlock is provided on compression ignition engines to limit the possible injector pump output during start-up. The pump regulating rod (2) carries a stop (3) that is prevented from full stroking during start-up by making contact with the spool (8) of a spring biased (5) solenoid. When the start up is completed the solenoid is energised to allow the pump demand to be increased. A variation allows the position of the spool to change with temperature increase. The spool has a ramped bottom surface to permit a progressive increase in rod stroke as temperature increases during start-up.