baber/WOPTO huggingface dataset:
Patent DE-2521411-A1 (DE)
Title: Pressure difference sensor esp. for flows at high temp. - with diaphragm movement sensed by wires in bridge circuit
Inventor: BROSA ERICH
IPC: G01L9/00
Filed: 1975-05-14
Abstract: A pressure difference sensor, esp. for flowmedia at high temperatures, has a diaphragm (1) in an aperture in the sensor wall (3). The diaphragm is divided by slits (25) into a number of segments (26) which carry pins (28) on both sides. The pins are provided with insulating elements (27) and are wound with resistance wires (29) under tension which are connected in a bridge circuit. Pref. when the diaphragm is exposed to pressure from one side the pins move alternately inwards or outwards, whereby the resistance wires are either shortened or lengthened and the bridge responds in proportion to the pressure load.
Patent DE-2521414-A1 (DE)
Title: Tobacco feed trimmer on cigarette maker - has rotating suction disc and two rotating knives
Inventor: RUDSZINAT WILLY
IPC: A24C5/18
Filed: 1975-05-14
Abstract: Device forming a strand of tobacco in a cigarette maker has a suction disc which rotates in a vertical plane and transports the tobacco flow in a circular feed plane. An equalisation device (12) removes the surplus tobacco, and consists of two rotating cutting knifes (29, 31) obliquely inclined against the tobacco flow (2). Each cutting knife has a circular cutting edge (34, 36) which enclose a hollow central part (37, 38). The cutting knifes (29, 31) are disc-shaped so that their front facing cutting edges (34, 36) act together in the area of the centre line of the tobacco flow (2).
Patent DE-2522037-A1 (DE)
Title: Three dimensional loadable panelled platform and lattice - has panel corners form locked to nodal elements replacing bars
IPC: E04B1/19
Filed: 1975-05-17
Abstract: The three-dimensional lattice structures of bar and nodal elements are used in conjunction with polygonal panels, corresponding to their fields, heavily loadable and forming a static entity with the bar and nodal elements. At least at their corners the panel elements (p) are form-locked to the nodal elements (K), taking the place of those bar elements normally lying in the plane of the panel elements, or parallel to it, and adjoining the allotted nodal elements. Each of the panel elements has a given bar substitution value, dependent on the number of its corners, in a statically stable lattice structure. The panel elements may also be statically effectively joined to each other at the edges.
Patent DE-2524177-A1 (DE)
Title: Hot reducing gas prodn. for ore redn. - esp. by plasma heating of steel making off-gases
Inventor: DECKER ALFRED
IPC: C21B5/00
Filed: 1975-05-31
Abstract: Method comprises injecting a combustible material and a combustion supporter, e.g. gaseous or liq. hydrocarbon and industrially pure oxygen, into a molten metal bath, specif. below the bath surface through a two-channel coaxial tuyere, and plasma heating the off-gases to 1700-2500 degrees C. These heated gases are used in iron ore redn. by direct redn. or in a blast furnace.
Patent DE-2525308-A1 (DE)
Title: Loudspeaker box avoids poor sound quality - has front face inclined to vertical by five to fifteen degrees to avoid internal reflections affecting quality
Inventor: MIETZ GUENTER
IPC: H04R1/26
Filed: 1975-06-06
Abstract: The loudspeaker box avoids the detrimental effects on sound quality of rectangular boxes (due to internal reflections) as well as their uguly appearance by inclining the front face of the box at an angle of 5 deg. to 15 deg. to the Vertical. The bass and treble speakers are set into this front face. The ratio of front face height to width is roughly equal to the golden number, and the ratio of the depth of the top to that of the base lies between 1:1.3 and 1:1.75. The optimum listening region is 110 to 120 cm high at a distance of 350 to 450 cm in front of the box. The bass loudspeaker (3) is mounted below the treble speaker (2).
Patent DE-2525765-A1 (DE)
Title: Binocular telescope system worn as spectacles - has provision for lateral adjustment and may be folded for storage
Inventor: FALKENSTEIN FRANZ
IPC: G02B23/18
Filed: 1973-05-21
Abstract: The optical instrument is worn as a pair of spectacles. It makes distant objects appear nearer through a magnified angle of vision and has two telescopes (11, 12) and the spectacle frame (10) forming one unit. The two telescopes (11, 12) are arranged on the spectacle frame (10), so that they can be moved laterally toward one another. The spectacle frame (10) supports the two telescopes (11, 12) and comprises the two spectacle sides which are hinged. The telescopes consist of a part for the ocular and a part for the objective. The spectacle-type frame consists of an upper and a lower part section. The two part sections comprise sliding guides which support the telescopes.
Patent DE-2532311-A1 (DE)
Title: Stud for arc welding onto metal base - where joint surface of stud is provided with ring projection to improve weld strength
Inventor: HACHTEL HANS
IPC: B23K9/028
Filed: 1975-07-18
Abstract: The projection may have a semicircular or rectangular cross-section where the width at the base of the ring is 3-15% fo the dia. of the stud. The height of the ring projection is pref. 10-70% of the length of the tip used to strike the arc. The stud consists of a shank with a flange comprising a curved contour and a slightly conical end surface. On this surface is a round tip employed to strike the arc. A strong weld is made with the ability to carry stress over the entire area of the joint between the stud and a metal to which the stud is welded.
Patent DE-2535299-A1 (DE)
Title: Rigid inner pipe for domestic chimney - is made of strip of special steel resistant to corrosion by gas
Inventor: KUTTER GERHARD
IPC: F23J13/02
Filed: 1975-08-05
Abstract: The rigid chimney insert or inner pipe consists of a helically wound strip of special steel with a helical external lock seam. The inner surface of the pipe after lock-seaming is smooth and undamaged, with at least the same quality as the original surface of the strip. The lock seam and the inner surface of the pipe may be free from lubricant which is enclosed during lock-seaming. Pref. the lock seam extends over the full length of the chimney pipe, with play for movement and expansion effective in the width direction of the strip. The pipe may be manufactured by applying smooth pressure to the inner surface of the strip during advance of the strip for winding and lock-seaming, and by smoothing or polishing the inner surface of the strip after lock-seaming.
Patent DE-2537437-A1 (DE)
Title: Adjustable shoulder level anchorage for car seat belt - adapts belt to short or tall users using alternative bolt holes or sliding rails
Inventor: HEYBL HANS-JOACHIM
IPC: B60R22/20
Filed: 1975-08-22
Abstract: The anchorage (1) leads the belt (4) from the low-level inertia roller (6), over the wearer's shoulder and down to the seat-level buckle (24). If this shoulder-level anchorage is set too high for the individual, it does not restrain his shoulders properly; this could lead to bad injury in an accident. The bar (1), over which the belt passes is therefore adjustable with respect to the fastening of the anchorage to the car frame. The adjustment may be achieved in several alternative ways. The simplest is to provide several possible holes for the fastening bolt (2); in others the component is made in two parts which can be fixed in various relative positions.
Patent DE-2539148-A1 (DE)
Title: Local ventilation system for sectional cut headings - in which outlet has ancillary outlet duct with evaporator
Inventor: GUNTAU ARNO DIPL ING
IPC: E21F1/04
Filed: 1975-09-03
Abstract: Conditioning and ventilating system for locally ventilated roadways in the mining industry works in conjunction with a dedusting facility and is used in sectional-cut headings. Fitted to the outlet of the local ventilation system (1), complete with duct storage (2) is an ancillary outlet (3). This can be sealed and resembles a duct and is fitted with a local booster fan (5) and evaporator (6) forming a single assembly. There should be a vortex duct (7) arranged behind the evaporator to serve as outlet, and the ancillary outlet should have a mechanical gate valve (4) fitted to it.
Patent DE-2545254-A1 (DE)
Title: Draw clamping device for recording device - has 2 linkage arms for reliable clamping when housing recess cannot be mounted near opening
Inventor: HOEHL RUDOLF
IPC: G12B9/08
Filed: 1975-10-09
Abstract: A clamping device for retaining a recording device (1) in a housing (2), uses a draw clamp with a pressure piece in the hollow foot of the recorder. It is designed for reiable clamping when the recorder recess (9) for the pivoting clamps cannot be located near the insertion opening. One end of a first linkage arm (10) pivots in the recess (9), and the other pivots in one end of a second arm (12) which also forms a pressure piece (13) under spring (23) force and is connected to a slide bar (16) via a swivel joint (14, 15). The tapered end of the bar (16) mates with that of a pivoted lever (5). When the lever (5) is forced down it pushes the arm (16) outwards to effect the clamping.
Patent DE-2548582-A1 (DE)
Title: Fitting rig for large tyres - with wheel clamp and tyre lever fulcrums around rim of hub
Inventor: ZORN HERMANN
IPC: B60C25/04
Filed: 1975-10-30
Abstract: The large dia. wheel (6) is securely clamped on the rig, in a horizontal setting and is held down by a pressure plate (14) bolted to the rig. A series of stubs (15) are set around the outside edge of the plate to provide fulcrums for the tyre fitting and removal tools. The stubs are set angled outwards and provide a minimum leverage distance between the tyre bead and the fulcrum, allowing a longer operating length for the lever. The system enables an operator to fit and remove large tyres without any motor driven equipment, in which the large pivot to tyre bead distance would lead to straining of the operating arms.
Patent DE-2549542-A1 (DE)
Title: Drawing board mounted on single column - has spring connection between foot lever and clamping levers as safety device should pneumatic spring fail
Inventor: RALL MANFRED ING GRAD
IPC: A47B27/16
Filed: 1975-11-05
Abstract: The single-column drawing board has weight compensation in the form of a pneumatic spring mounted in a telescopically displaceable tube containing two parallel clamping levers mounted on either side of the tube. Movement is by a brake rod actuated by a foot lever. A non-positive connection produced by a spring is provided between the foot lever and the clamping levers which produces an effective safety device preventing the board from dropping down should the pneumatic spring fail. Only the difference between the thrust of the pneumatic spring and the weight of the actual drawing board is decisive for initiating the safety measure.
Patent DE-2550017-A1 (DE)
Title: Yarn steam treatment process - using superheated and saturated steam stages in a single operation for bulked and carpet yarns
Inventor: ROSENKRANZ DIETER
IPC: D02J1/22
Filed: 1975-11-07
Abstract: In process partic, for shrinking and fixing bulked or carpet yarns, the yarn to be treated is passed in quantities of 5 kg and more, in loose coils, in an initial treatment stage to be subjected to superheated steam at 0.5-1.0 and 140-180 degrees C for the duration of the filling process. The chamber is then hermetically sealed for the second stage, where the yarn is subjected to satd. steam at 1.0-4.5 atmos. and 120-155 degrees C. As a third stage, the steam is disconnected and the yarn drawn out and wound into spools. Process allows the yarn material to be treated in a single-stage operation, suitable for processing acrylic yarns or bi-component yarns, where the effects of the steam have to be precisely controlled.
Patent DE-2558077-A1 (DE)
Title: Dehydro-steroid derivs. prodn. - by reacting oxo-steroids with phosphonoacetic acid esters and reacting with diisobutyl-aluminium hydride and an acyl anhydride
Inventor: EDER ULRICH DR
IPC: C07J13/00
Filed: 1975-12-19
Abstract: In a new process for the prepn. of 17(20)-dehydro steroid derivs. of formula (I), a steroid of formula (II) is condensed with a phosphonate carbanion of the formula (R2O)2P(O)-Circled negative CH-COOH (iii) and the resulting cpd. of formula (IV) is reacted with diisobutyl-aluminium hydride and lower carboxylic acid anhydrides to give a cpd. (I). In formulae (I)-(IV), R1 is lower alkyl; Ac is lower alkanoyl; St is the residue of the A-B-C rings of a steroid contg. 1-2 structurally possible double bonds and a carbonyl or protected OH gp.; Stx is the residue of the A-B-C rings of a steroid contg. 1-2 structurally possible double bonds and a protected carbonyl or protected OH gp.; and R2 and X are lower alkyl. Cpds. (I) in which the residue St carries a lower alkoxy gp. in the 3-position and a double bond in the 5(6)-position are claimed as new cpds. (I) are intermediates for pharmacologically active substances. For example, prednisolone can be obtd. by microbiological or chemical 1,2-dehydrogenation and microbiological 11-hydroxylation. The new method of introducing the side-chain in the 17-position is technically simpler than the method of DT. 1468880. (I) is obtd. in almost quantitative yield. Specific cpds. (I) include 17(20)E/Z-21-acetoxy-4,17(20)-pregnadien-3-one.
Patent DE-2604361-A1 (DE)
Title: Water heating system utilising solar energy - employs gravity circulation between radiation collector and hot water tank
Inventor: OBERBERGER JOHANN
IPC: F24S90/00
Filed: 1976-02-05
Abstract: The solar energy radiation absorber (8) is placed on the sloping side of an attic roof so that it has the same inclination as the roof. At its top end there is a connection from the water space in it to a hot water storage tank (7) arranged so that the connection enters the tank just below the water line (5). A return connection runs from the bottom of the tank to the lower end of the water space in the absorber. There is a non return valve (3) in the flow connection and a ball valve (2) at the outlet of the flow connection. This stops circulation when no hot water is being drawn off from the tank.
Patent DE-2608725-A1 (DE)
Title: Heat resistant cast iron - alloyed with (scrap) nickel-base alloy is used as car exhaust manifold
Inventor: DOBBENER RAYMUND DR RER NAT
IPC: C22C37/00
Filed: 1976-03-03
Abstract: Cast iron is given improved heat resistance by adding to the liquid iron, before casting, 0.5-8% (1-2%) of a Ni-base high temp. alloy in the form of scrap, as well as Mo to give an Mo content of 0.25%. The alloy is also inoculated before casting using known agents, and the casting is heat treated at a temp. above the pearlite transformation, at about 800 degrees C before mechanical treatment.
Patent DE-2611374-A1 (DE)
Title: Copper-chromium-alkaline earth hydrogenation catalyst - for conversion of carboxylic esters to alcohols; having high activity and long life
Inventor: SCHULZ ALFRED DR
IPC: B01J23/86
Filed: 1976-03-18
Abstract: Catalyst (I) for the hydrogenation of a carboxylic ester to the alcohol corresp. to the carboxylic acid is based on opt. supported Cu, Cr and opt. an alkali metal and other elements. At least one alkaline earth metal is added later. (I) is obtd. by mixing Cu and/or Co cpds. (sic) with alkali and/or alkaline earth cpd(s). in solid or dissolved form and opt. together with a support and pptn. from the soln. if necessary, so that a solid mixt. is formed. The mixt. is calcined at 100-500 degrees C and the surface is treated with an alkaline earth metal. (I) is then activated by redn. (I) is esp. used in the redn. of liquid or solid satd. or unsatd. dicarbocylic esters of diols to the corresp. satd. diols, e.g. the adipate (II) of hexandiol (III), esp. mixts. of esters obtd. in the oxidn. of hydrocarbons. E.g. a calcined mixt. of 66 (wt)% Cu oxide and 3% Na oxide was sprayed with Ca nitrate soln., dried and calcined, giving a catalyst contg. 3-3.6% ca Wrt Cu. This was used in the hydrogenation of (II), giving a 98.5-99% yield of (III).
Patent DE-2612920-A1 (DE)
Title: Tester for axle journal and shaft - has two rings sliding into journal by press fit with neighbouring sections of equal diameter
Inventor: SEIBERT WILLI
IPC: G01B5/25
Filed: 1976-03-26
Abstract: The device is for testing axle journals and shafts, etc. and is esp. for powered vehicles. It is designed for simple operation and rapid production of test results. Two rings (A, C) slide onto the journal (1) with a press fit. The rings have neighbouring outer sections (9,al outer dia. over which a ring (B) is slid to grip both inner rings (A, C). The second inner ring (C) has an end stop face (13) for the outer ring (B). The first inner ring (A), the outer ring (B) and the journal flange (6) have butting faces. The first inner ring has a cut out (3) for the journal widening.
Patent DE-2618272-A1 (DE)
Title: Digital blood press. indicator - is for use by laymen and counts pulses generated at frequency proportional to blood press.
Inventor: SCHWAB MARTIN
IPC: A61B5/022
Filed: 1976-04-27
Abstract: The equipment has the usual cuff, pump and valve, and a microphone to detect systole and diastole. The press, in the cuff is converted to a D.C. voltage, which is then converted into a proportional impulse frequency. At systole and diastole the impulses are counted for a fixed period and the results displayed digitally in press units (mmHg, Torr). The D.C. voltage is pref. controlled by a press. sensitive membrane moving a permanent magnet near a resistance which responds to alterations in magnetic field. This voltage is converted into an impulse frequency by using it to charge a condenser, which is discharged each time a given threshold is reached.
Patent DE-2623064-A1 (DE)
Title: Mortice lock with nut and locking bolt - has successively assembled nut unit and cover plate with bolt
Inventor: DEUTSCHMANN SIEGFRIED
IPC: E05B17/00
Filed: 1976-05-22
Abstract: The mechanism of the mortice lock provided with catch and locking bolt is readily assembled. The lock nut is assembled with its spring and the whole assembly is tightly held. The lock nut is not able to tilt and it is rotated by a plunger into its initial position. It is th en secured against unwinding by the lock arm stop pin which is inserted only after assembly of the nut and spring arrangement. The lock cover plate is fitted after that and the plunger is retracted. A second plunger is provided which lifts out the lock tumbler and the locking bolt provided with key is pushed into position when the lock cover plate is fitted.
Patent DE-2623952-A1 (DE)
Title: Air intake volume dependent fuel injection system - has air flap upstream of throttle controlled for cold start by spiral spring attached to thermostat rod
Inventor: SCHMIDT KARL ING GRAD
IPC: F02M69/48
Filed: 1976-05-28
Abstract: The fuel is metered to the engine corresponding to the position of an intake volume dependent flap (3) fixed to a shaft (4) located in the air intake (1) upstream to the throttle flap (2). The air fuel ratio can be altered independently to the air intake volume for certain working conditions. For cold start and warming up conditions, a spiral spring (14) is provided to act as a variable air intake volume flap return force. The one end of the spring is fixed to the air flap shaft (4) and the free end is attached to a thermostat push rod (15). Alternatively, the free end of the spiral spring may be attached to either an electro magnet responding to exhaust gas oxygen signals or a pressure box sensitive to atmosphere pressure.
Patent DE-2625139-A1 (DE)
Title: Purification of waste gases by combustion - at widely varying rates and concentrations without backward flame propagation risk
Inventor: GERMERDONK ROLF DIPL ING DR
IPC: B01D53/34
Filed: 1976-06-04
Abstract: Methods of, and appts. for purifying by decomposition at 800-1000 degrees C., waste gases contg. organic or mineral substances, in which the flow of gas varies between wide limits is claimed. The concn. of O2 and of combustible substances varies so that the explosive limit is sometimes exceeded; supplementary combustible is added to maintain the decomposition temp. According to the invention, air or waste gas which contains no combustible substances, is added to the waste gases, the flow regime is made laminar and the gas mixt. is sent to the combustion chamber, with no boundary layer on the wall of the inlet duct. The quantity or combustible-free waste gas is added in a constant proportion which maintains the rate at a value defined on a curve determined experimentally, between 3 and 20% of the max. flow rate of the waste gases. The invention ensures direct combustion of flammable waste gases in a burner which prevents propagation of a backward flame and reduced explosion risk, to a greater extent than is possible with existing methods, and without incurring the high capital and running costs associated with existing methods.
Patent DE-2627447-A1 (DE)
Title: Electric conductor or conduit partition - uses damp asbestos based filler for holes blocking after atmospheric setting
Inventor: STAUDT GERHARD
IPC: F16L5/04
Filed: 1976-06-18
Abstract: The blocking of the free space left in the bulkhead or partition after the insertion of the cable or conduit is filled with a damp compound based on asbestos and which sets at the atmospheric pressure. The compound comprises asbestos fibres and powder, some pigments and light structural additives. The material is wetted at the site with water and organic binders are added to it. In the case of horizontal laying of cables (5) through an opening (4) in a partition wall (3), the support for the cables is ensured by a trough (6) and bracket (8). This design applies for wall thickness of up to 250 mm when the copper area of the cable is limited to 4 X 240 mm2.
Patent DE-2633058-A1 (DE)
Title: Fixing pin for insulating mat holder - has round cross=section with spaced integral flats protruding along its length
Inventor: POLLOCK CLAUS
IPC: F16B21/02
Filed: 1976-07-22
Abstract: The fixing pin for an insulating mat holder consists of a round pin (1) with a number of flats (7) protruding from the sides. The protrusions are placed diametrically opposite one another and are spaced at regular distances along the length of the pin. The long sides of the protrusions are tapered, so that the pin can be pushed into a slotted hole in a mat holder. The end faces of the protrusions keep the pin captive. The protrusions are forged from the pin, so that there is no reduction of section.
Patent DE-2635203-A1 (DE)
Title: Composite film for laminating onto wood - by casting polymer solns. of differing hardener content onto carrier and heating
Inventor: SCHAMBERG ECKEHARD DR
IPC: B29C48/91
Filed: 1976-08-05
Abstract: A composite film, for improving the surfaces of wood sheets of alaminates, is prepd. from heat-hardenable copolymers by (a) casting a soln. of a hardenable copolymer on a carrier, (b) evaporating the solvent at least until formation of the film, under conditions under which hardening of the copolymer is avoided, (c) casting onto this film a soln. of a hardenable copolymer, with a smaller hardener content than the first copolymer, (d) evaporating the solvent again, and (e) heating the composite at a temp. at which the copolymer with the higher hardener content hardens, but the copolymer with the lower hardener content does not harden, or hardens only partially. The surface layer swells less in organic solvents and has improved resistance to chemicals. Stable copolymer solns. can be used, to which the hardener is added just before use. Additives, e.g. softeners, can be added to the second soln. without affecting the hardness of the surface film.