baber/WOPTO huggingface dataset:
Patent DE-2500592-A1 (DE)
Title: Heat exchanger arrangement for power stations - uses additional gas or oil fired heater
Inventor: HEIN KARL DIPL ING
IPC: F02G5/02
Filed: 1975-01-09
Abstract: The arrangement is suitable for small thermal power stations with motors or turbines, using gas or light oil. It has a common housing with several separate chambers and a mixing chamber, where the heat can selectively be transferred from one chamber into others, and onto tube bundles contained in the chambers. In the mixing chamber, the heat is transferred from a gaseous medium, to a fluid medium, sprayed out of one chamber. An additional heater, directly fired by gas or oil, is positioned in or outside the common housing. The combustion gases from the heater are fed via a common combustion chamber and a heat exchanger bundle, into the mixture chamber. The sprayed fluid medium returns to chambers, and the combustion air for a motor or a turbine is guided past the chambers, and takes up heat from the chambers.
Patent DE-2514584-A1 (DE)
Title: Immersion heater with small tubular coil - has heating filament connected via tiny plug-socket to supply wire
Inventor: TRIEBERT PETER
IPC: H05B3/80
Filed: 1975-04-03
Abstract: The immersion heater, for boiling small quantities of water or individual cups, consists of a small tubular heating coil (16) containing the electrically insulated heating filament (19). The straight ends of the coil are sealed into a connection housing and heating filament is connected to the lower end of a plug- type contact (18) inside the tube. The upper end of the contact is connected to a socket arrangement (25) which is, in turn, connected to the electrical supply wire (24) via the protective circuit breaker, e. g. fuse. The contact, filament and socket are enclosed by an electrically insulating sleeve (17), and the heater is simply manufactured.
Patent DE-2517463-A1 (DE)
Title: Vacuum forming mould and stamping ring for thermoplast beakers - hold very thin sheet and provide airtight seal before stamping
Inventor: KAYSER PETER DIPL ING
IPC: B29C51/32
Filed: 1975-04-19
Abstract: In a moulding and puching device for hot vacuum deep-drawing of beakers from thermoplastics sheet, the sheet is stretched across the mouth of the mould, held there by a spring-loaded clamping device to form an airtight seal around the lip of the mould and is finally cut after moulding. The clamping device for the thermoplastics sheet is made up of the end face of the mould and a spring-loaded annular piston biased downwards by its spring as a holding-down device to clamp the sheet against the edge, this piston is guided inside the cylindrical chamber of the cutting tool the internal dia, to the cutting edge of this tool and thus the external dia. of the piston holding-down device being greater than the internal dia. of the mould at its mouth. A highly leaktight seal is formed which is of especial advantage in the handling of very thin sheets, where there is a risk of them becoming cut before the deep-drawing action takes place.
Patent DE-2519858-A1 (DE)
Title: Grinding machine for slotted rings - has loading device made up of flange and transfer piston with magazine for rings and loading slide and ejector
Inventor: HACK JOHANN
IPC: B24B19/11
Filed: 1975-05-03
Abstract: The grinding machine for rings which are peripherally slotted, has a tensioning chuck which accepts the ring during the machining. A loading device (10) is adjustably arranged in front of the chuck (2) and can be adjusted against the chuck instead of the disc (6). The loading device consists of a loading flange (11) which accepts the ring to be ground and compresses it to its required diameter, and a loading piston (12) which transfers the ring axially out of the loading flange (11) into the chuck (2). There is a magazine (16) to accept the rings (1a) to be machined, a loading slide (17) to transfer a ring out of the magazine in front of the loading flange (11) and an ejector (20) to push the ground ring from the chuck (2).
Patent DE-2521834-A1 (DE)
Title: Conveyor belt system with intermediate drive - has driving belt with suction cups engaging with conveyor belt
Inventor: GOLLBACH LUDWIG DIPL ING
IPC: B65G23/19
Filed: 1975-05-16
Abstract: The conveyor belt system has a driving belt forming an intermediate drive, in frictional contact with one or more runs of the conveyor belt. The driving belt (4) has suction cups (12a), by which it engages the conveyor belt. There are sealing lips of elastic material (13) along the edges of the cups distorting under the pressure between the two belts. The cups can be in the form of troughs running parallel to the direction of belt movement, and separated from each other by ribs. The ribs of adjacent troughs can be offset in relation to each other. The cups can be more thinly spaced near the belt edges, and mounted on a coating applied to the basic portion of the driving belt.
Patent DE-2527758-A1 (DE)
Title: Mine roof support over face conveyor - has curved arms, one sliding over other, with telescopic front and rear supports behind
Inventor: SCHULTE HEINRICH
IPC: E21D23/00
Filed: 1975-06-21
Abstract: The mine support designed to support the roof over a mining machine and face conveyor has two curved members (18) mounted on a sledge (11). The upper member (15) is supported at the roof by a vertical telescopic cylinder (16) hinged to the rear of the sledge. The lower member (14) which has the same curvature, is hinged to the front of the sledge and is connected to the upper member by another telescopic cylinder (19). In an alternative design, the lower curved member fits inside the upper member, and the latter terminates in a horizontal portion attached by a hinge. The rear telescopic support connects at the top to this hinge. In another design, a flat roof portion has a curved underside, travelling on rollers on the curved top of the swinging arm.
Patent DE-2530783-A1 (DE)
Title: Ladies' fine tights with polyester pantie and polyamide legs - using thicker highly elastic textured polyester filament yarn
IPC: A41B11/14
Filed: 1975-07-10
Abstract: In ladies' fine tights of synthetic fibre material, esp. circular knitted tights, with a pantie of polyester yarn and legs of polyamide yarn, the pantie consists of thicker, esp. highly elastic textures polyester filament yarn. The pantie pref. consists of polyethylene terphthalate yarn, esp. continuous filament yarn of 50-200, esp. 75-150 dtex, with a capillary number of 4-98 and the legs of textured polyamide-6,6 or -6 continuous filament yarn. The tights are self-supporting without incorporation of elastomer yarns. The pantie consists of anionically modified or non carrier dye polyester yarn. The tights can have a gusset of cotton or regenerated cellulose on the inside. It is also possible to work the polyamide yarn used for the legs into the pantie, pref. on the inside.
Patent DE-2534367-A1 (DE)
Title: Chlorine trace measurement in air - using solver chromate-impregnated indicator paper sensitive to hydrogen chloride
Inventor: LUEBKE DIRK ING GRAD
IPC: G01N21/86
Filed: 1975-08-01
Abstract: The paper undergoes a colour change (from red-brown to white) depending to the concn., gas throughput and time, and the degree of colour change is a measure of the conc. The traces of Cl2 in the gas are converted to HCl in a definite ratio. The gas pref. is heated (to 900 degrees C) and then cooled to room temp. before entering the analyser, whilst interfering components, e.g. HCl, HBr and HI are absorbed bedore heating. Max. colour change is obtd. in 30 min. with 50 1/h air contg. 10 ppm Cl2. If the heating and cooling stages are used, this is reduced to 3 min. The appts. has a measuring chamber through which a strip of indicator paper passes. Light emitted by a source through an optical filter (passing 380-510 nm) is reflected diffusely by the indicator paper and measured with a photocell. There pref. is also a gas sampler, very fine filter absorption tower, reaction furnace and gas cooler before the analyser.
Patent DE-2535093-A1 (DE)
Title: Polymerising vinyl aromatics in presence of diol acrylic esters - giving higher space time yield of (co)polymer with same properties
Inventor: ECHTE ADOLF DIPL CHEM DR
IPC: C08F212/02
Filed: 1975-08-06
Abstract: A vinyl aromatic cpd. is (co)polymerised, opt. in presence of a rubbery component, in presence of 0.001-0.5 (0.005-0.05) wt.%, w.r.t. monomer(s) of a cpd. (I) of formula H2C=C(R1)-CO-O-R-O-OC-C(R1)=CH2, R1 is H or (m)ethyl and R is -CnH2n-, in which n = 2-20, or -R2(O-R2-)m in which m=1-20 and R2 is 1-4C (un)branched alkylene. Polymers with the same index of viscosity may be obtd. at higher polymerisation temp. The monomer is esp. styrene and substd. styrenes. Claimed I are butane diol diacrylate and di(m)ethacrylate. In an example, polystyrene was obtd. at 0.154 kg/litre/hour in presence of butane diol diacrylate, and at 0.0812 in absence of the acrylate.
Patent DE-2544267-A1 (DE)
Title: Elastic catch e.g. for latching a wardrobe door to its frame - has resilient components made of polypropylene
Inventor: FUESSEL KURT
IPC: E05C19/06
Filed: 1975-10-03
Abstract: A "snap" catch for two opposite, releasably latchable, elements, esp. for a furniture (e.g. wardrobe, sideboard) door and its frame, has a closure portion with a base plate and a closure tongue fastened to it, for 1 element; and a closure portion (II) for the other element. (I) is fastened to another base plate and has a rim which engages the tongue when the catch is closed. The tongue is springingly movable w.r.t the base plate. The catch is easily mfd., has long service life and is very easy to operate.
Patent DE-2545265-A1 (DE)
Title: Coke oven charging hole connecting duct - with screw conveyor suspended from same running track as lid lifting device
Inventor: ABENDROTH WERNER
IPC: C10B43/06
Filed: 1975-10-09
Abstract: In the parent patent the discharge end of the hoppers of a coke oven charging car is linked to the charging holes of an oven chamber by a sideways and vertically movable screw conveyor which is suspended on a trolley from a running track under the charging car. In this addn. the same running track also carries another trolley ahead of the sealed discharge end of the screw conveyor on which a chamber lid lifting device is suspended. All charging operations from the lifting of the lid to its reinstatement can be carried out from one position of the charging car. A common drive can be used for both appliances on the running track.
Patent DE-2548616-A1 (DE)
Title: Paired horizontal external wall facing panel rows fixture - uses continuous batten with bent wall attachment and grooves for panels
Inventor: HOFFKNECHT MANFRED
IPC: E04F13/08
Filed: 1975-10-30
Abstract: The device is used for the fixture of tw horizontally superimposed rows of separate panels, abutting or overlapping on the external wall face of a building. It is in the form of a continuous batten (4) with a bent section (5) or attachment to the wall face (1). It incorporates two lengthways grooves (6, 7) parallel to the bent section, and with their openings facing opposite ways, each accommodating the panels (2, 3) of one of the two rows. The two grooves may be in alignment with each other, or adjacent to each other, with their width (b) approximating to the panel thickness (d).
Patent DE-2550469-A1 (DE)
Title: Calcining or sintering raw materials e.g. clay - in appts. provided with partial recycling system
Inventor: WEBER PAUL DR ING
IPC: F27B15/00
Filed: 1975-11-10
Abstract: Calcining or sintering of raw materials such as clay, limestone, dolomite, magnesite, etc. comprises pre-heating using effluent gases; then heating in the main firing zone connected with a separator in a cooling zone; and returning the remaining part of the material into the main firing zone. The process is improved in that the material is passed through two separately heated compartments.
Patent DE-2551149-A1 (DE)
Title: Exhaust turbine for IC engine - has piston keyed in helical slot to allow exhaust turbine attached to cylinder to assist piston movement
IPC: F02B73/00
Filed: 1975-11-14
Abstract: The exhaust gases leave the combustion chamber, after expanding, via slots in the cylinder wall into a turbine fixed to the cylinder. Air enters the turbine through an automatic flap valve during the pause between the working strokes. The air is heated by the exhaust gases and contributes energy to turn the turbine. An after burner could be also provided. The piston pin slides in slots formed in the cylinder wall to guide the piston from top to bottom ded centre. A guide cylinder with a curved groove is arranged outside of or inside of the main cylinder to engage with the piston pin to turn the entire engine as the piston reciprocates. The injector pump is actuated by a stationary cam ring and rotates with the engine mass.
Patent DE-2552205-A1 (DE)
Title: Controlled gas expansion process - has preheated gas and liq. gas and cold liq. gas from condenser injected into expansion chamber
Inventor: HUEBNER HANS-JUERGEN ING GRAD
IPC: F01K27/00
Filed: 1975-11-21
Abstract: The gas expansion precess has the polytropic expansion controlled and the main power development at constant pressure. The exhaust gas from the expansion engine is cooled and liquefied in a condenser. Part of the liq. gas is then pre-heated in the engine cooling jacket. Part of the emerging pre-heated liq. gas is evaporated in an exhaust-heated heat exchanger and subsequently injected in the expansion chamber of the engine. The remainder is injected as pre-heated liquid gas. The rest of the liquefied exhaust gas is injected without any pre-heating. By conrolling the amounts, temperatures, timing and duration of the injections as a function of operational parameters, the process can be optimised.
Patent DE-2600946-A1 (DE)
Title: Hydraulic shock absorber spring ring - has radially pitched undulations which control piston valve over dynamically uniform range
Inventor: NACHTIGALL ALBRECHT ING GRAD
IPC: F16F1/32
Filed: 1976-01-13
Abstract: The compact corrugated spring washer pack replaces a helical spring, loading a lorry shock absorber's hydraulic valve passage. Radially pitched undulations decrease in amplitude towards the centre. The uniformly deformed washer suffers stress distribution under loading. Peripheral, indented interlocking lugs retain the washers angularly. Dished (8) washers are corrugated and point contacting (2a) on outer planes (13,15) when unloaded. Line contact develops under axial load and the outer edge lugs mesh (47,48) adjacent washers. A three-washers pack comprises a pair (28,29), and one washer (27) angularly disposed half a pitch.
Patent DE-2601900-A1 (DE)
Title: Electronic cutting method for video tape recorders - uses comparison of old and new synchronization signals
Inventor: LANDAU GUENTER
IPC: G11B27/10
Filed: 1976-01-20
Abstract: In order to avoid synchronisation difficulties when crossing from the old to the new recording, synchronisation signals in the old recording are compared with those in the new recording. The servo system of the recorder is controlled in accordance with the phase difference, so that correct phase relation is re-established. A reversible counter is set to a certain position during recording or reproduction at the instant of the required junction passage. During forward run and rewinding pulses proportional to the tape length are used for the reversible counter control. After restarting the tape the recorder is set to reproduction until the counter reaches the same state as when set, and then the recorder is switched to recording.
Patent DE-2602686-A1 (DE)
Title: High strength forged steel e.g. for crankshafts - is given improved strength by alloying with a small amt. of nitrogen
Inventor: KNELLER JUERGEN DIPL ING
IPC: C22C38/00
Filed: 1976-01-24
Abstract: Heavily stresses steel forgins are given improved strength by alloying a steel contg. 0.25-0.60% C, 0.30-0.70% Si and pref. 0.10-0.35% Cr, 0.50-1.20% mn, with 0.0120-0.035% N (0.0140-0.0230%N), and limiting the content of elements with a high N affinity to pref. only trace amts. The non-heat treated forging is suitable for crank-shafts. Method gives a high strength steel without using a costly alloying element such as V or Nb in large amts.
Patent DE-2604154-A1 (DE)
Title: Programming element for time switches - has indented devices for removable placing of switch sliders for switch operation
Inventor: GRAESSLIN DIETER
IPC: G04C23/10
Filed: 1976-02-04
Abstract: The programming element (1) consists of a cylindrical annular element made of plastic with devices (2) on its outer and/or inner surface for placing and locking switching sliders (3, 4). The programming element (1) is supported by pinions at least three points (9) of which at least one can be used for the support correct in time drive. The surface devices (2) are pref. finely graduated coaxially centred indentations. The pinions (9) are each supported by a flange (10). Around the outer periphery of the annular element is inserted a time scale, marked in hourly divisions from 1-24.
Patent DE-2604954-A1 (DE)
Title: Box with several different loudspeakers - includes switch to select filters giving best sound quality typically for orchestras
Inventor: PINTERNAGEL WERNER
IPC: H04R3/14
Filed: 1976-02-09
Abstract: The loudspeaker box, for bands etc, contains several loudspeakers with different characteristics and frequency ranges. A switch is used to switch in passive or active LC filters that alter the characteristics of the loudspeakers. The best sound for any given condition can therefore be selected using this switch, or switches. The advantage lies in giving the greatest range without the expense of having a different set of loudspeakers for each different environment.
Patent DE-2606459-A1 (DE)
Title: False twisting machine - has pivotally mounted yarn guide provided with two guide members made of materials having different coefft. of friction
Inventor: BAUER KARL DR ING
IPC: D02G1/02
Filed: 1976-02-18
Abstract: False twisting machine having a pivotally mounted yarn guide in the twisting station of the machine, has the guide provided with two guide members, which have different coefft. of friction. Yarn guide has optimal friction characteristics for all machine operating conditions.
Patent DE-2606824-A1 (DE)
Title: IC engine speed limiting system - uses secondary coil voltage to fire auxiliary thyristor to inhibit ignition
Inventor: KRATZSCH WERNER ING GRAD
IPC: F02D17/04
Filed: 1976-02-20
Abstract: The rotating distributor (1) includes a voltage in a coil (2) to charge the ignition capacitor (4) across a diode (3). A second coil (5) also has a voltage induced to trigger a thyristor (7) and so discharge the ignition capacitor to produce a spark in the plug (10) over the main coil (9). For special limiting, a coil (21) has an induced voltage proportional to the speed that charges a capacitor (22) which fires a thyristor (26) across a Zener diode (24). A current limiting stage (25) is included. The thyristor firing inhibits the ignition process.
Patent DE-2608935-A1 (DE)
Title: Gas purificn. by addn. of absorbent - in series of stages with sepn. and recycling of absorbent after each stage
Inventor: HOELTER HEINZ
IPC: B01D53/60
Filed: 1976-03-04
Abstract: A gas, at >=120 degrees C, requiring purificn. and to which can be added an oxidising agent, e.g. H2O2 or potassium permanganate, is passed through a series of tubes where it is mixed with an adsorption agent, e.g. slake lime, calcium carbonate, iron oxide, amorphous silica, porous perlite or filter carbon, having a granulometry pref. 50 mu. Each mixing tube is followed by a separator which removes the absorbant from the gas stream and recycles it counter-currently to the gas flow. Absorbant is introduced into each mixing tube through >=1 nozzle pointing downstream, each nozzle followed by a conical flow obstacle with its pointed end facing the nozzle, then a truncated converging section of the mixing tube reducing the flow area for the gas. Absorbant recycled counter-currently is removed from the separator after the first stage mixing tube, par of the absorbant is rejected and the rest is sent back to enter the final stage mixing tube, fresh make-up absorbant being added before it enters the mixing tube. Alternatively the recycled part of the absorbant is introduced into the penultimate mixing tube, with the fresh make-up absorbant being fed into the final mixing tube and the absorbant recovered from the separators after these stages is mixed before passing to the next mixing tube upstream. Rejected absorbant can be rid of harmful prods. by converting them to calcium sulphate using air and lime wash or by heating it in a Claus furnace after which it can be re-used. Process is used for purificn. of flue gases contg. SO2 and NOx. The absorbant need not be expensive and can be re-used several times with the process still giving a very high purificn. effect. The reaction is very rapid so that the installation is small and there is low energy usage.
Patent DE-2617116-A1 (DE)
Title: Mounting strip for overhead installation of pipe - has worm screw in anchor block engaging grooves in strip to adjust mounting height
Inventor: ROEMPLER DIETER
IPC: F16L3/14
Filed: 1976-04-17
Abstract: The mounting bracket for the installation of a pipe (12) to a ceiling, includes an anchor block (5) which is attached to the ceiling by means of screw (4). A horizontal worm screw assembly (8-10) is fixed to the underside of the anchor block (5). The worm screw (10) locates the top end of ribbon (7) which is also supported by a curved guide plate (8). The lower end of the mounting ribbon is attached to the pipe (12) by means of a buckle (13). Since the mounting ribbon has detachable fixing points at both ends, it can be cut to any length required during installation.
Patent DE-2624742-A1 (DE)
Title: Multiple unit compact slitting mechanism - has units with pressure chambers and knife holding and aligning mechanisms
Inventor: MASTRIANI ELVIN E
IPC: B26D5/04
Filed: 1976-06-02
Abstract: The compact slitting mechanism units can be positioned in abutting parallel relation, for narrow width cutting, slitting or other operations. The units include pressure chambers and knife holding and aligning mechanisms with structural features enabling knife elements and actuator cylinder mechanisms of the units to be mounted in essentially unitary axially aligned relation. The assembly allows removal and replacement of any knife of any unit without disassembly of parts, in a safe convenient and simple manner.
Patent DE-2625583-A1 (DE)
Title: Timepiece setting shaft protected against reverse rotation - is acted on by spring stamped out from timepiece mounting plate
Inventor: DOERFLINGER HELMUT
IPC: G04B23/02
Filed: 1976-06-08
Abstract: The setting shaft (4) for a timepiece mechanism, e.g. for an alarm clock, is connected to the timepiece mounting plate (1) via a friction coupling. This comprises a spring blade (6) which is stamped out from the mounting plate (1) and which acts against the side of the setting shaft (4) to prevent rotation of the latter in the wrong direction. Pref. the setting shaft (4) is made from plastics and it may have a groove (3) around it, into which the edge of the hole for the setting shaft (4) in the mounting plate (1) fits. A second groove (8) in the shaft (4) may be provided for the rear mounting plate (9).