baber/WOPTO huggingface dataset:
Patent DE-2428474-A1 (DE)
Title: Worktable with built-in overhead film projector - has movable projector stand housed beneath table top when not in use
IPC: G03B21/132
Filed: 1974-06-12
Abstract: The worktable is adapted to house a projection which is mounted on a support unit which includes a framework which is supported on the table frame and as a complete unit is desiged to swivel about a vertical axis so that it can be fixed in a work position adjacent the table top and an inoperative position beneath the table top. The actual stand for the projector is mounted on the support framework and is adapted to move about a second horizontal axis and a third horizontal axis which is at right angles to the said axis. The projector stand and support frame can be a system of movable arms which can be locked in different positions so that the height and inclination of the projector can be adjusted.
Patent DE-2432078-A1 (DE)
Title: Steel backed light alloy surfaced cylinder liner - has intermediate layer of light alloy bonded on by roll- or explosion welding
Inventor: GROTH CLAUS DIPL ING
IPC: F16J10/04
Filed: 1974-07-04
Abstract: The steel substrate of the liner initially has a thin layer of light alloy bonded to it by roll-or explosion welding so that a strong bond is obtained between the two layers. A further more massive layer of similar light alloy is then cast on in a conventional manner, the initial layer of light alloy serving to maintain the integrity of the composite assembly. Good heat transfer properties are obtained.
Patent DE-2433707-A1 (DE)
Title: Nitrogenous polyols prodn. - by oxalkylation of polyamines, using hydroxy-alkyl alkylenediamines as initiators
Inventor: JOEL DETLEF DIPL CHEM DR
IPC: C08G18/50
Filed: 1974-07-12
Abstract: In prodn of nitrogeneous polyols by oxyalkylation of >=1 polyamines, hydroxyalkylalkylenediamines of formula (R)2N-CnH2n-N(R2): (I) (where R is H, -CH2CH2OH, -CH2CH2CH2OH or -CH2C(OH)H-CH3; and n=2-4), are used as initiators. I may be tetrahydroxyethylethylenediamine. Prods are used in mfr of polyurethanes. There are no catalyst residues which might be detrimental to subsequent polyurethane synthesis.
Patent DE-2436057-A1 (DE)
Title: Inflatable swimming-pool covering - incorporating hollow flexible tubes for filling and expansion, and draw cords for collapse
Inventor: KLEINERMANNS HUBERT
IPC: E04H4/10
Filed: 1974-07-26
Abstract: The swimming pool cover, for indoor or outdoor use, for heat retention, protection from dirt on the water surface and for moisture prevention where air-conditioning system are used indoors, comprises a wide surface format with hollow bodies attached to it, which can be filled, pref. in the form of flexible tubes. These become taut and expand when filled with a suitable medium and spread the unit across the water surface. For clearing it away from the surface of the water there are draw-cords running alternately between its top and bottom surfaces, which can be shortened from the ends, so that the units can be drawn into a compact entity or folded up, as the medium is let out through holes provided for this purpose.
Patent DE-2443954-A1 (DE)
Title: Treating waste gas contg. hydrogen fluoride - by absorption using soln. of ammonium fluoride, ammonium bicarbonate, ammonia and sodium fluoride (NO120476)
Inventor: KALATSCH WLADIMIR SERGEJEWITSC
IPC: B01D53/14
Filed: 1974-09-13
Abstract: The waste gas contg. hydrogen fluoride together with silicon fluoride and sulphur dioxide is treated with an aq. soln. contg. ammonium fluoride, ammonium bicarbonate, ammonia and sodium fluoride by absorption; and the aq. soln. contg. ammonium fluoride and pptd. sodium silico-fluoride, obtd. by absorption is treated with sodium carbonate and a ppte. of sodium fluoride is sepd. from it, the aq. soln. is re-used in absorption. The waste gas is produced from calcining phosphate rock and defluorinated phosphate fertilizer prodn.
Patent DE-2444801-A1 (DE)
Title: Vehicle safety belt with strength limit - has good belt positioning on body independently of operation of belt tensioner
Inventor: HOFFMANN GUENTER
IPC: B60R22/195
Filed: 1974-09-19
Abstract: Vehicle safety belt comprises a belt strength limit device (7) mounted at one end of the belt (1), and a belt tensioner (6) which is released by a release member in case of an accident at high speed to apply the belt tightly to the passenger's body. The tensioner engages the belt in the transverse direction of the belt between two guide points (13a, 5). It is preferably mounted between the belt strength limit device and the passenger and includes an eye (14) for passage of the belt. There is at least one lower point of attachment in the centre of the vehicle, and the tensioner is mounted beneath the seat surface (11, 13) on the seat frame and operates in a direction transverse to the longitudinal direction of the vehicle.
Patent DE-2453442-A1 (DE)
Title: Transparent polyvinylalcohol films on transparent-reflecting parts - after initially applying polyvinyl acetate film, and saponifying
Inventor: LANDT CARL
IPC: C09K3/18
Filed: 1974-11-12
Abstract: Transparent films ar formed on transparent/reflecting parts, esp. of silicate glass, by applying an aq. soln. at 15-60 degrees C contg. (1) PVA, (2) 0.5-5wt. % dimethylolurea-dimethylether, based on 1), and (3) 7-14wt. % ammonium chloride, based on (2), and drying/curing the film. When the part consists of acrylic glass, this part is pretreated by (a) applying a PVAc soln., (b) drying the applied soln., (c) saponifying the film on the surface of the part, and (d) drying. Ensures strong bonding of the transparent film to acrylic glass parts. The films have a good resistance to washing, chipping and scratching.
Patent DE-2454757-A1 (DE)
Title: Shell-and-tube heat exchanger - can be switched from condensing to vaporising duty or vice-versa
Inventor: SCHMIDT PETER
IPC: F28D7/16
Filed: 1974-11-19
Abstract: A shell and tube heat exchanger has three connections for the primary (tube-side) fluid, of which two are used at any one time. Two connections are provided for the secondary (shell side) fluid. Used esp. as condenser and vaporiser alternately in heat pump circuits. Alternate use for two duties reduces number of exchangers required and, as a result, the capital investment on chemical plants is reduced.
Patent DE-2456066-A1 (DE)
Title: Cooling molten extruded plastic film - by initially cooling only film edges and then entire width of film
Inventor: KLEINHEINS GERHARD DR
IPC: B29C48/08
Filed: 1974-11-27
Abstract: Cooling of molten extruded film, e.g. polypropylene or polyethylene terephthalate is effected by na) contacting the molten film with a moving cooling face, only the two edges of the molten film being allowed to contact the cooling face initially, (b) allowing a sufficient solidification of the lower side of the molten film, and (c) contacting the entire width of the film with the same or antoher cooling face. Method effects rapid cooling of the molten film without formation of bubbles on the boundary face between the film and cooling face. The cooled film has a high quality and uniform thickness.
Patent DE-2505935-A1 (DE)
Title: Flexible coupling between rotating shafts - has several rings of elastic material with reinforcing insert layers between hub and flange
Inventor: HARTZ HELMUT
IPC: F16D3/76
Filed: 1975-02-13
Abstract: An internal hub section is on the end of one shaft and an external flywheel flange on the end of the other. The hub and flange are joined by one or several rings of elastic material with reinforcing inserts of wire, textile or plastic fibre and are bowed to increase flexibility. The inserts all adopt the same position under stress and there is no risk of elastic rings pulling out. The insert layers (6, 7) project from the elastic rings and are held in position by clamping rings (10, 11, 12, 13). The hub (1) and the outer ring (2) as well as the edge (8, 9) of the insert layer have boreholes, parallel to the axis, in which holding screws fit. The facing layer on the inside (5) is thicker than the facing layer on the outside (4) of the coupling.
Patent DE-2509926-A1 (DE)
Title: Therapeutic nerve stimulating current apparatus - is fitted with second generator producing square wave pulses fed to current amplitude meter
Inventor: BOETTCHER LUTZ DIPL ING
IPC: A61N1/36
Filed: 1975-03-07
Abstract: A generator produces a therapeutic current for the patient from a series of pulses of random pulse shape and a meter is provided to measure the current amplitude whereby a second generator (102) is provided producing a current with a series of pulses of at least approximately square shape of the same amplitude as the random pulse shape current with the random pulse fed to the patient and the square wave pulse fed to the current meter (18, 25). Pref. a potentiometer resistance (9) has both currents fed into it and regulates the patient's current whilst an electronic switching arrangement (17, 26) controlled by the square wave voltage and coupled to the potentiometer resistance slider forwards the respective currents to the patient or to the measuring device.
Patent DE-2513330-A1 (DE)
Title: Non-caking petroleum coke sintering - mixed with coal tar pitch in shaft reactor with controlled secondary air admission
Inventor: SOBEK FELIX
IPC: C10B53/08
Filed: 1975-03-26
Abstract: Non-caking petroleum coke which is produced in the first refining stage of crude oil can be converted to formed coke of 20 to 250 mm size in two stages. In the first, petroleum coke of up to 1 mm size is mixed with 12 to 16 wt.% of hard coal tar pitch and rolled or pressed to ovoids. In the second stage, these avoids are sintered in a reactor at 700-950 degrees C by keeping the oxygen available within the zone of the stoichiometric point. The process enables dumped petroleum coke to be converted into a first-class fuel at reasonable cost.
Patent DE-2513999-A1 (DE)
Title: Methylbutene dial 1-acetals prepn. - from crotonaldehyde, acetals useful as inters for carotenoids
Inventor: SCHUSTER LUDWIG DIPL CHEM DR
IPC: C07D317/24
Filed: 1975-03-29
Abstract: Process for prepg. trans-3-methyl-2-butene-1,4-diol-1-acetals of formula (I) comprises (a) ozonolysis of crotonaldehyde acetals (II) in an org. solvent at 0 degree C then reductive elimination to give glyoxal monoacetals which (b) are vinylated in a Grignard reaction then acetylated to give cpds. (III), then (c) (III) are hydroformylated using conventional Rh catalysts at 60-140 degrees C and 20-1500 atm. excess, with CO and H2 and (d) the prod. is subjected to conventional elimination of acetic acid. (R1 and r2 = 1-4C aliphatic hydrocarbyl or together form ethylene or propylene, opt. substd. by 1-4C alkyl, pref. CH3). (I) are inters. in synthesis of carotenoids e.g. reaction with the ylid from beta-ionylideneethyltriphenylphos-phonium salts and subsequent hydrolysis, gives retinal. Process provides (I) in relatively few stages.
Patent DE-2537170-A1 (DE)
Title: Airflow valve for heat exchanger - has flap valve to distribute air between min. and max. path length through heat exchanger
Inventor: STOLZ ALBERT DIPL ING
IPC: B60H1/00
Filed: 1975-08-21
Abstract: The heat exchanger (3) is set at an angle in the air duct of the vehicle heating system. A flap valve (14) is set with its axis parallel to the leading edge of the heat exchanger. The position of the valve determines which proportion of the air-flow flow through the upper corner (6) of the heat exchanger, for minimum heat pick up, and which proportion flows through the longer path length of the main body of the heat exchanger. The layout dispenses with a bypass duct for the cool airflow, with only a limited amount of heat pick-up. The unit can be fitted into existing air ducts with a minimum of alteration.
Patent DE-2551401-A1 (DE)
Title: Clean air supply for car interior - uses bottled oxygen or air reserve controlled by carbon monoxide monitors
Inventor: JUERGENS WALTER DR ING
IPC: B60H3/00
Filed: 1975-11-15
Abstract: The inside of the car can be supplied with clean air, or oxygen, from a bottle supply (1) mounted in the car. The release of the oxygen is controlled by carbon monoxide monitors inside the car, so that if the car is in stationary or dense traffic, then the supply can ensure clean air inside the vehicle. The system can operate as an emergency air supply at road accidents, with a special mouthpiece (6) for linking to victims. It can operate automatically or manually.
Patent DE-2601339-A1 (DE)
Inventor: PFLAUM AUGUST
IPC: B41F9/08
Filed: 1976-01-15
Abstract: A carrier (2) having the ink depression (12) adjacent to the forme cylinder (11) consists of individual, adjacent slide pieces (3) which can be pressed individually and elastically against the forme cylinder. By means of the individual slide pieces, the carrier (2) can fit more snugly than previously against the outer surface of the forme cylinder if the latter is partially non-round, such that an evenly thick ink film is nevertheless applied to the forme cylinder. <IMAGE>
Patent DE-2604594-A1 (DE)
Title: Roof insulation material cutting machine - has endless belt transporter mounted cutters with rollers locating material and pivoted flat webs
Inventor: POLLENDER HANS
IPC: B26F1/06
Filed: 1976-02-06
Abstract: The machine is for making building components used for insulating and sealing of walls. It continually processes roofing material strips for structural components. The machine has a frame for an endless belt (1) with pivoted flat webs and upper cutting edges. The continuous roofing material strip (11) is guided between rollers (9,10) on the upper span of the endless transporter. The cutters are formed of semicircular convex cutting edges. These cutters are held by detachable ring mounts.
Patent DE-2606848-A1 (DE)
Title: Positioner for single sheets of paper - has sheet feeler positioned at side edge of rear edge of sheet stack to monitor approach of sheets
Inventor: GELBKE JOCHEN H DIPL ING
IPC: B65H7/02
Filed: 1976-02-20
Abstract: A positioner for single sheets is especially for graphic machines such as printing machines and stamping machines which during one machine cycle takes one sheet from a stack and guides it to the machine. The positioner is fitted with a known sheet control equipment which ensures that at at control time point at least part of the positioner complete feeler is positioned on the opposite side of the plane of the controlled sheet than the remaining parts of the feeler. The feeler of the sheet control equipment is positioned at the side edge or rear edge of the stack in direction of positioning of the sheets. The sheet positioner is either mounted in front of the graphic machine or forms an assembly unit with the graphic machine.
Patent DE-2609166-A1 (DE)
Title: Rotary potentiometer testing contact - uses several mutually insulated contact surfaces distributed about potentiometer shaft
Inventor: HANSBAUER HERMANN ING GRAD
IPC: H01H25/06
Filed: 1976-03-05
Abstract: Several mutually insulated contact surfaces (10) are distributed in a firm spacing round the potentiometer drive shaft (8). The contact surfaces are accessible from the shaft end and are mounted on a plane at right angles to the shaft axis. They are interconnectable by a contact bridge (11), which moves in the direction of the shaft axis, against a resilient resetting force. Preferably on the drive shaft is mounted an actuating knob (9) with an axial movement, being connected to the contact bridge at its side facing the contact surface. The actuating knob may be held in its rest position away from the contact surfaces by a compression spring (20).
Patent DE-2620043-A1 (DE)
Title: Fixing device for glass lens blank - has flexible holder connected with one half shaft of grinder and is transparent in centre and edge
IPC: B24B9/14
Filed: 1976-05-06
Abstract: Glass lens blank fixing device of a lens edge grinding machine where a flexible holder is connected with one half shaft of the grinding machine and is fixed to one surface of the blank by adhesion. The holder (14, 30) is transparent in its centre and in its edge region (16) which is provided with hair lines (22) or similar markings. The holder (14, 30) can be connected with the lens blank (1) with the aid of an adhesive (26). The flexible transparent holder has an adhesive layer with a cover leaf. Further, the holder (20) carries a central coupling casing (23) which passes through the holder foot. The bottom end of this casing forms a free opening.
Patent DE-2623533-A1 (DE)
Title: Conveyor drum spindle end mounting - has plate for different load cell sizes and for hydraulic cell
Inventor: GEHLE KARL
IPC: B65G23/44
Filed: 1976-05-26
Abstract: The mounting accommodates the spindle end of a guide drum which can be slid in the axial direction of a conveyor belt. The spindle end has a flat against which a load measuring cell is pressed by a rotary spindle also adjustable in the axial direction. The mounting has a plate (12) adjustable in the axial direction of the belt by the spindle (7), and in which there are sets of holes to accommodate different load cells (6). There is an intermediate wall (9) between the cell and drum spindle end (2), with a bore (18) accommodating the thrust piece (19) of a hydraulic load cell as well as the body of an electric one.
Patent DE-2625815-A1 (DE)
Title: IC engine fuel air mixture regulator - uses exhaust gas sensor dependent signals to adjust air fuel ratio
Inventor: SAITO MASAAKI
IPC: F02M9/10
Filed: 1976-06-09
Abstract: The engine is provided with a carburettor whose venturi has a fixed section (14a) and a pivoted section (14b). The lower end of the pivoted venturi is connected to a taper fuel jet needle (20) and the pivoted end is joined by a pull rod to throttle valve (18). An electronic regulator (50) responds to signals from an exhaust gas sensor (46) fitted to the exhaust manifold (48) to hold the air fuel mixture to a pre determined ratio of 14.8:1. The signals from the electronic regulators are fed to an air adjuster unit (30) which consists of an auxiliary air feed pipe joining the main fuel jet (22). The air feed is selectively opened and closed by a diaphragm (40) which is actuated by a solonoid valve (38) responding to the regulator signals. Alternatively the jet receiving the taper needle could be correspondingly displaced by the solenoid to vary the fuel rate.
Patent DE-2625870-A1 (DE)
Title: Photo-lithographical etching process - for semiconductor devices preceded by specified ion bombardment to clean all conductor track windows
Inventor: BELL GUIDO DIPL CHEM DR
IPC: H01L21/311
Filed: 1976-06-09
Abstract: In a photolithographical etching process of semiconductor wafers, windows are created in a photolacquer layer by exposure through a mask and development. Before the etching operation itself starts, the windows are cleaned from all remnants of photolacquer or other impurities introduced by a post bake process by an ion bombardment. The power, kinetic energy and duration of the latter must lie within specified limits; it is pref. derived from plasma discharge. This ensures that the etchant can act uniformly over all areas of the windows where conductor tracks are to be etched. The result is a more uniform quality of the finished article.
Patent DE-2626400-A1 (DE)
Title: Attachment for heating and ventilating chimney - has polygonal cross section and slots with sloping corner faces
Inventor: BAUER WILHELM
IPC: F23L17/02
Filed: 1976-06-12
Abstract: The attachment for heating and ventilating chimney stack has regular polygonal outside cross section. Longitudinal slots are distributed uniformly over the circumference at the imaginary polygon corners. The sides are flat or sightly convex and their radius of curvature is >= the radius of the circle enclosing the polygon. The attachment improves chimney stack draught and is self cleaning. The outside surfaces (8) of the sides (24) have at the region on the longitudinal slot edges inwards sloping parts (12). The outside edges (14) of the longitudinal slots (6) are displaced inwards in relation to the surface of outside faces (8). These sloping parts (12) have concave curvature.
Patent DE-2643274-A1 (DE)
Title: Seal esp. for nuclear power plant access openings - has U=section flexible strip and expanding element
Inventor: JACKES ROBERT
IPC: F16J15/3236
Filed: 1976-09-25
Abstract: A seal comprises a sealing element of U-section and a device for pressing the lips of the element against the two machine components to be sealed. The sealing element is a relatively stiff, elastic strip, similar to an axially slit hose or tube; it can be expanded from a generally oval section to an approximate semi-circle without kinks or bulges. The element is prised open to press its lips against the adjacent components esp. by a device consisting of a nut or bar on the convex crest of the element and a plate or the like on the concave side with tensioning nuts and bolts pulling them together. A wide range of possible materials may be used to fabricate the sealing element. It is highly adaptable in its width, so that different sizes of the seals are not necessary for different gaps. It is easy to install, remove and inspect. It is particularly simple and suitable for sealing access openings and inspection openings in pipes, ducts, and the like in nuclear power plants.
Patent DE-2645433-A1 (DE)
Title: Engine exhaust silencer with after burner - has ceramic insert and covers which are removably secured to sheet metal expansion chamber by longitudinal tie rod or tube
Inventor: LEISTRITZ HANS KARL DR
IPC: F01N13/18
Filed: 1976-10-08
Abstract: The connection is intended for ceramic (6, 14, 15) and sheet metal elements (10, 22) in a combustion engine exhaust system with or without after-burner as in 2638632 wherein a first expansion chamber (2) communicates with the next chamber (3) via ducts (11) in a ceramic partition (6). The ceramic elements are removable and are secured (7, 9) to a sheet metal carrier element (10) which forms the first chamber (10, 2) downstream of the exhaust entry connection (1). The assembly may be held together by a longitudinal tie rod (7, 9) or tube. The longitudinal member (9) may be a tube through which cooling air can flow through the exhaust gas chambers. It may secure ceramic covers (14, 15) at both ends of the assembly.
Patent DE-2650151-A1 (DE)
Title: Hand appliance for scattering granular materials - has funnel bottomed container with opening above solid part of perforated cup base
Inventor: GAFFRON WOLFRAM
IPC: B65D83/06
Filed: 1976-10-30
Abstract: The appliance, for scattering road salt, sand, fertiliser, seeds or other granular material, incorporates a pref. cylindrical cup with base perforations. A supply container for insertion in the cup, has a funnel-shaped base with a central opening allowing material to run out. This opening is sited at a small interval above the cup base, which is not perforated in this area. The cup has a handle firmly joined to it, so as not to turn. This can be easily manipulated handed and at arms length. The sieve is easily replaced for varying materials.
Patent DE-2650177-A1 (DE)
Title: Layered capacitor prodn. process - involves coating dielectric cylinder with layer of metal covered by dielectric and further layer of metal
Inventor: WOLLENSCHLAEGER WERNER
IPC: H01G4/248
Filed: 1976-10-30
Abstract: The capacitor has a metal base layer which is a good conductor of electricity. The metal base layer is coated onto an insulating support and it is in turn coated with a layer of dielectric material and a metal cover layer. The metal base layer (2), the dielectric layer (3) and the metal cover layer (4) are applied on a cylindrical support (1), with a slot (5) left along a cylinder generatrix. The metal base layer (2) projects from under the dielectric layer (3) covering it.