baber/WOPTO huggingface dataset:
Patent DE-2647138-A1 (DE)
Title: Piston for hydrostatic piston motor - has pressure buffer chamber created in piston chamber open towards piston guide surface
Inventor: STUHR HANS-WALDEMAR DIPL ING
IPC: F01B3/00
Filed: 1976-10-19
Abstract: Piston for a hydrostatic piston motor supported by a sliding shoe against a piston guide surface creating a pressure buffer chamber in the sliding shoe open towards the piston guide surface. The pressure buffer chamber is connected to the chamber in front of the piston surface by a channel with a component producing a throttle effect located inside the channel. The component is made as a flow throttle producing an especially large resistance at the beginning of a flow by processes affecting the flow inself. The flow throttle is located in a plate shaped chamber (16).
Patent DE-2647307-A1 (DE)
Title: Duplicate key profile checking machine - has mounting block and carriage driven by motor with edge scanners comparing original
Inventor: TROILLET WILLY
IPC: G01B7/28
Filed: 1976-10-20
Abstract: The machine for checking the profile of a duplicated key by comparing with an original version, consists of a base block (2) for mounting the original key (3p) and the key (3a) being checked. The two keys form part of an electrical circuit. The machine has a carriage (8), driven by an electromotor (12) in the direction parallel to the axis of the keys, and fitted with two sensors (19a, 19b) which scans the profile of the two keys. The scanners are connected in series with the supply circuit of the carriage, which has a cross member (9) sliding along a horizontal axis (10) parallel to the axis of the keys. The sensors are mounted on an arm (14) which is hinge coupled to an intermediate link (11) with the cross member.
Patent DE-2650005-A1 (DE)
Title: Single stringer ladder for orchard use - has pointed top with no rungs and hinged support foot at base
Inventor: SOMMAVILLA FRANZ
IPC: E06C7/42
Filed: 1976-10-30
Abstract: The bottom end of the stringer (1) is fitted with a supporting foot (3), which is hinged to it parallel to the rung plane. The top end is pointed, and has no rungs. The upper part (6) of the support foot can incorporate the support hinge joint for the slotted stringer rod, while the lower part is pointed for firm anchorage in the ground. The rungs (2) can have depression towards their end, for firmer foot-hold. The stringer may be made up from telescopically connected tubular units. It can be easily placed in position, even among dense impeding foliage; and it is inexpensive and safe.
Patent DE-2652991-A1 (DE)
Title: Half-tone picture prodn. system - uses film on rotating drum illuminated by row of point sources modulated in brightness
Inventor: TAUDT HEINZ DIPL ING
IPC: H04N1/06
Filed: 1976-11-22
Abstract: The system is used for production of half-tone pictures with a raster of dots of different sizes to built up the desired tone graduations. A film (6) is wrapped around a rotating drum (5); it is illuminated by a lamp system (3) with a row of orifices (2). The orifices form a series of small light sources or point sources extending in a direction parallel to the axis of the drum (6). A lens (7) is used to focus an image (8) of the row of orifices (2) on the film. A prism (11) covers part of the lens so that a second image (8') is formed which overlaps the first. The brightness of the beams coming from the orifices is modulated so as to form a series of triangular dots (10) on the film. As the drum rotates the light source is slowly moved parallel to the axis of the drum.
Patent DE-2655777-A1 (DE)
Title: Cover flap for valve of aerosol container - with front portion lifted to expose spray outlet and rear portion used to operate valve
Inventor: JAWOROWSKI ERWIN
IPC: B65D83/16
Filed: 1976-12-09
Abstract: The flap (18) is used to cover the press-down valve (5) of pressurised spray container. This valve fits inside an annular cap (8) around the container body (1), the top having a central orifice (32) providing access to the valve. This is covered by the rear portion (19) of the flap, the front portion (22, 23) extending forwards and down the front. A hinge line (21) enables this front portion to be lifted up to expose the spray valve outlet, in the form of a tube (6) extending to the cap outer wall (11). A stop (34) is provided to prevent inadvertent operation of the valve with the flap closed.
Patent DE-2658741-A1 (DE)
Inventor: WALTER HEINZ ING GRAD
IPC: G21D1/02
Filed: 1976-12-24
Abstract: In order to prevent damage to nuclear power station components resulting from oscillating pipelines, said pipelines are surrounded by pipeline securing devices. The insulation (13), which consists of relatively soft material, of the pipeline (12) produces only insignificant resistance to the oscillating movement of said pipeline (12), so that said pipeline (12) develops considerable motive energy until it strikes against the pipeline securing device. In order that the distance which the pipeline (12) has to move through to the pipeline securing device (2), which is arranged outside the insulation (13), is not too large, spacers (14, 15), which are in the form of segments and consist of pressure-resistant material, are embedded in the insulation (13). <IMAGE>
Patent DE-2702326-A1 (DE)
Title: Metallic bis-ylid complexes - used as (co)catalysts for the polymerisation of olefin cpds.
Inventor: SCHMIDBAUR HUBERT PROF DIPL CH
IPC: C08F4/32
Filed: 1977-01-21
Abstract: A metallic bis-ylid complex is obtd. by reacting a bis (methyl di-(organyl)-phosphoranylidene methane which has formula (CH3)R1R2P=C=PR1R2(CH3) in which R1 and R2, identical or different, are 1-4C alkyl, phenyl or tolyl, and is pref. (CH3)3P=C=P(CH3)3, with a mono-, di or trivalent metal cpd., pref. of Li, Au, Mg, Zn, Cd, B, Al, Ga, In, Tl, Ni, Pd, or Pt. Metal cpds. used are, e.g., MR2, where M is Zn or Cd and R is CH3 or C2H5; CH3AuP(CH3); (CH3)3Ga; MX2, (CH3)3P 2MX2 or (CH3)2AuX 2, where M is Ni, Pd or Pt and X is Cl, Br or I. The metallic bis-ylid complex is used as a (co)catalyst for the polymerisation of olefins.
Patent DE-2703252-A1 (DE)
Title: Machine frame assembled from bolted hollow modules - which have standard range of dimensions and equi-pitched holes
Inventor: REINECKE HARTMUT
IPC: F16M1/00
Filed: 1977-01-27
Abstract: Machine frame is suitable for die casting machines, bending machines, presses, clamping devices, and similar machines. The frame has a modular construction using hollow modules which are connected to each other in a detachable manner; and the modules are interchangeable with other modules of different sizes. All the modules pref. have a square or rectangular shape, with two end walls, two side walls and one long wall, i.e. a box structure, or only four walls, e.g. open at both ends. One or more wall pref. contains connection holes with constant pitch; and the modules are pref. bolted together. The modules can easily be interchanged to make a wide variety of frames, e.g. so that extra dies can be mounted on a die casting machine.
Patent DE-2709796-A1 (DE)
Title: Hand held liq. spraying equipment - has valve slide working in cylindrical chamber with aperture leading to nozzle
Inventor: SCHWAB EGON
IPC: B05B11/00
Filed: 1977-03-07
Abstract: The liquid-spraying equipment from a closed vessel has a hand-operated suction-and-pressure pump, and a spring-loaded valve directly upstream of the nozzle, opened by pressure in the pump chamber. The moving part of the valve is a slide (10), whose outer periphery forms a seal against the inside wall of a cylindrical chamber (23). There are one or more apertures (21) in the chamber wall, connecting the pump chamber to the nozzle (22). These apertures are only opened after the valve slide has started to move. The slide can be a plunger, shutting off the apertures in one end position, while its spring (11) is a accommodated in an extension of the cylindrical chamber, shut off from the apertures and from atmos.
Patent DE-2712891-A1 (DE)
Title: Self-lubricating shaft bearing - has narrow rotary body outside bearing support area in axial direction
Inventor: KIRMA SAFA DIPL ING
IPC: F16C33/10
Filed: 1977-03-24
Abstract: the bearing is for a shaft with self-lubrication from an oil sump and rotary roller body(7). The latter is in contact with the shaft and dips into the sump. The bearing comprises top and bottom shells and the roller works in a guide at the bottom, being held against the shaft by springs. Alternately the roller can be of magnetic material. The roller is situated outside the supporting area(6) of the bearing in the axial direction, and is relatively narrow compared to the width of this area, typically less than one quarter of the latter. The design operates equally well over a wide range of speeds, and is compact in construction.
Patent DE-2713328-A1 (DE)
Inventor: LEHMANN ERNST
IPC: B05B5/025
Filed: 1977-03-25
Abstract: The device for electrostatic application of coating material is provided with a material feeder which on the outlet side is electrically insulating. It has an atomiser nozzle (5), associated with which there are charging electrodes (6a, 6b) to which a high voltage is applied. In order to suppress potentially igniting sparks, an envelope (10) is provided, which encloses the appliance housing at least on the outlet side, consists of an insulating material, e.g. a fluorohydrocarbon polymer, and may be coated with finely dispersed, high-resistance or semiconducting material. <IMAGE>
Patent DE-2719680-A1 (DE)
Title: Electroplating aluminium using aprotic solvents - and inert gas chamber contg. pretreatment and rinsing tanks
Inventor: HERRNRING GUENTHER DR PHIL
IPC: C25D19/00
Filed: 1977-05-03
Abstract: Plant for aluminium plating using aprotic solvents in an inert atmos., uses >=1 pretreatment tank (a); an air lock chamber (b) filled with inert gas; a plating bath (c); and >=1 post-treatment tank (d). Tanks (a, d) are located in chamber (b), which also contains workpiece transport devices (e) operated by remote control. Devices(e) are used for all the tanks, and are located above the tank charging openings. All the tanks or their charging openings are pref. located at the same height and in a straight line, devices (e) using pistons in work cylinders operated by inert gas. Inert gas above atmos. pressure is pref. used in chamber (b), the latter being connected to another chanber(f) which can be fed with inert gas, or hot air for drying. The adhesion of the Al is improved due to the exclusion of moisture and O2; the working life of the aprotic solvents is increased; and no noxious fumes are released.
Patent DE-2722983-A1 (DE)
Title: Flame-resistant acrylonitrile! (co)polymer contg. amidoxime gps. - introduced by treatment with hydroxylamine soln. and base
Inventor: NEUKAM THEO DR
IPC: C08F8/30
Filed: 1977-05-20
Abstract: Flame-resistant acrylonitrile polymers, and articles having K-values 65-90 contain w.r.t. nitrile gps. >=0.5(5-10) mol.% units having formula -C(=O)NH-OH, bonded to the C-chain. The -C(=O)NH-OH gps. are introduced by treating the acrylonitrile polymers or article, with a hydroxylamine soln. and a base, and then with an acid. The acrylonitrile polymer is pref. polyacrylonitrile or an acrylonitrile copolymer contg. by wt., 0.1-6% diketane and/or 0.1-30% Me acrylate and/or 0.1-10% acrylamide and/or 0.1-10% copolymerisable unsatd. carboxylic acid anhydride and opt. other monomers, e.g. 0.1-5% methallyl sulphonate. Non-inflammability is achieved without halogen- or P cpds. and without complexing with metal salts. Treatment requires 1 step. Use of a weakly acid medium protects the material. Conversion can be monitored by pH-control.
Patent DE-2726930-A1 (DE)
Title: Railway train communication system - uses compressed air line as transmission medium and electroacoustic transducer
Inventor: GOEPFERT MAX
IPC: G08C23/02
Filed: 1977-06-15
Abstract: The transmitter-receiver unit for a railway train's communication system employs the train's compresses air line as the transmission medium. It includes an electroacoustic transducer which is mounted in a cup-shaped housing. Connection terminals couple the transducer to the usual electronic circuits. A foam material coating damps the movement of the transducer and fills the housing apart from a central channel. The housing is funnel shaped and is screwed into a coupling device. A rubber hose joins the coupling device to the train's compressed air line by way of a second coupling device. There is free communication for the compressed air between the air line and the electroacoustic transducer.
Patent DE-2730872-A1 (DE)
Title: Rearranging 1,2-di:glyceride to 1,3-di:glyceride - by heating in solid form with alkali metal catalyst
Inventor: KRAWACK BOERGE
IPC: C11C3/06
Filed: 1977-07-08
Abstract: Catalytic rearrangement of 1,2-diglycerides (I) to 1,3-diglycerides (II) comprises maintaining (I) at elevated temp., but in solid form, in presence of a basic alkali metal cpd. catalyst used at >=0.01 wt.% (as Na), until the (I):(II) ratio is 1:4, esp. 1:20. Suitable catalysts are alkali metals or their alkoxides, hydroxides, carbonates, soaps and mixts. (II) can be esterified to give triglycerides, esp. esterification with stearic or palmitic acids give prods. similar to the triglycerides of cocoa butter.
Patent DE-2732207-A1 (DE)
Title: Vertical screw mixer which can be easily cleaned - has cylindrical or conical mixing screw surrounded by at least two=part sheath, both components being mounted on inclined slide rails
Inventor: SATTLER ROBERT
IPC: B01F15/00
Filed: 1977-07-16
Abstract: Vertical screw mixer has cylindrical or conical mixing screw surrounded by a sheath which is divided along its axis into a number of sections. These are mounted on inclined slide rails, inclination being towards the centre. An upper and lower support is provided. In the region of the upper support, an actuating mechanism from outside the vessel is linked to the sheath sections, this being from power cylinders mounted on the vessel lid with links via actuating levers. Openings are provided on the vessel lid to allow access for cleaning the screw and inside the vessel. The arrangement allows the sheath to be completely removed from the screw so that both sheat sections and the screw can be easily cleaned.
Patent DE-2734438-A1 (DE)
Title: HV rod insulator for tensile loads - has core made of rectangular section glass reinforced plastics
Inventor: BAUER KARL-HANS DIPL ING
IPC: H01B17/40
Filed: 1977-07-29
Abstract: Insulators of the type in question are typically employed in the support of overhead wires in electric traction systems. The principal loads are tensile, but both compression and bending loads may also occur. The manufacture of the cores for such insulators can be made more economic by using glass reinforced plastic material of rectangular cross section. This permits cutting the cores from sheet material thereby avoiding the need for specially wound cylindrical rods. The insulators may comprise several rectangular rods in parallel, the number depending upon the expected loading. The rods are covered with insulating sheds in the normal manner except that rectangular openings have to be provided.
Patent DE-2739230-A1 (DE)
Title: Trigger control circuit for transient recorder - responds to limit amplitudes being exceeded or given signal gradient direction
Inventor: SCHNEIDER RUDI ING GRAD
IPC: G01R13/06
Filed: 1977-08-31
Abstract: The trigger control circuit has two comparators (5, 6) receiving measured signals for comparison with selected reference voltages. The outputs of the comparators (5, 6) are coupled to detectors for the signal gradient direction, each detector comprising two AND gates (9, 11; 10, 12) followed by an OR gate (13, 14). The outputs of the two detectors are coupled in parallel to the inputs of an AND gate (19), an OR gate (20) and an EXCLUSIVE-OR gate (21). The outputs of these three gates are connected via respective switches to a common circuit output for the trigger circuit.
Patent DE-2741034-A1 (DE)
Title: Heat insulated roof purlin structure - has foil over insulating strips spanning gaps, set on shackles passing through holes
Inventor: ALDERMAN ROBERT J
IPC: E04D13/16
Filed: 1977-09-12
Abstract: The roof structure (10) comprises parallel roof beams (11), and purlins (12), with upward aligned centre stem fitted parallel at intervals on these. The centre stems (13), have apertures aligned with apertures in the purlins on opposite sides. The aligned purlin apertures (22, 24), are pierced by insulation carrier shackles (20), vertical to the purlins. There are insulating strips, wide enough to bridge the gap between purlins, running parallel to the purlins and lying on the shackles. The purlins are also fitted with covering foil sheets which extend over the strips.
Patent DE-2746278-A1 (DE)
Title: Automatic casting machine - equipped with trimming means to improve conductivity
Inventor: YAMAGUCHI TERUMOTO
IPC: B29C45/00
Filed: 1977-10-14
Abstract: A movable die moves toward fixed die and clamps together so as to produce closed cavity in which molten metal is charged and cooled to form the prod. Then the movable mould is retracted to open position the product is ejected by pins. The clamping means is extended to clearance between the fixed die and the prod. then the product is further ejected by a piston and held by suitable means. Then the clamping means retreats to the initial position where the prod. is trimmed.
Patent DE-2754610-A1 (DE)
Title: Grinding wheel perforation coating system - applies synthetic material onto moving section by flame spraying, with flame heating up disc
Inventor: FISCHER CLEMENS
IPC: B05D1/10
Filed: 1977-12-08
Abstract: The process is used for the manufacture of synthetic coatings for wheel perforations of esp. more than 100 mm thickness. A section of the circumferential aperture surface, which moves in a circumferential direction due to rotation, is heated, until the surface is at a temperature above the melting point of the coating material. During continuation of the rotary movement, molten coating material is sprayed onto a moving section of the circumferential surface, until the desired thickness is achieved. Application is by flame spraying, with the flame only being used for the initial heating. The coating material may be polyamide, or polyvinylchloride.
Patent DE-2756208-A1 (DE)
Title: Photocomposing machine with continuously variable focal length - uses standard camera zoom lens and afocal and collector components
Inventor: BLOCK GERHARD DIPL PHYS
IPC: B41B17/10
Filed: 1977-12-16
Abstract: The optical image is achieved using a compact objective with continuously variable focal length. The zoom objective comprises a universally applicable main section (21) and additional parts (23, 24) for special use in the composing machine. The main section is an afocal central part with zoom unit and optical collectors (23, 24) at each end. Adjustment of the image size of the zoom unit simultaneously controls the intensity of the light source. The thickness and spacing are regulated by a rotatable mirror moved by a lever arm whose length equals approx. the distance between mirror and film.
Patent DE-2832242-A1 (DE)
Title: Removing paper-making belt rolls on air caster(s) - to avoid damage to the belt surface
Inventor: O'HAGAN PETER
IPC: D21F7/00
Filed: 1978-07-21
Abstract: Air pressure casters are used to support heavy rolls for guiding an endless paper making belt during removal of the rolls from within the endless belt, or removal of the belt from the rolls. The paper making belt, or the rolls, is easily removed without damage to the surface of the belt.
Patent DE-2834961-A1 (DE)
Title: Hand-held pneumatic hammer - incorporates dampening jacket integral with grip to reduce vibrations from drill and impact tool
Inventor: EMONET HENRI
IPC: B25D17/00
Filed: 1978-08-10
Abstract: The pneumatic hammer has a compressed air distributor, to control the piston movement within a cylinder, to transmit energy to the tool in the front of the housing hammer. The housing consists of a rotary cylinder (1), with a bush (7) pushed into one end, to form the guide element for the tool, which is held in a polygonal bore within it. A distribution block blocks the opposite end of the bush and a cast section (16) is set into the sleeve wall. A jacket (13) of a dampening material is integral with the appliance grip. The piston slides between the bush end and a rear seat, formed by the distributor front. The piston movement is controlled by distribution of the compressed air in the flow channels, which are formed by recesses between the sleeve, cast section and jacket.
Patent DE-2835229-A1 (DE)
Title: Continuous withdrawal of molten metals from rotary furnaces - separately from slag and at controlled rate independently of recharging rate
Inventor: SHERWOOD WILLIAM LYON
IPC: F27D3/14
Filed: 1978-08-11
Abstract: In the continuous metal withdrawal from a rotary furnace a refractory siphon tube is inserted through the discharge opening, down through the slag into the metal. Molten metal is withdrawn continuously by suction into an enclosed chamber kept under a controlled negative suction pressure. The rate of withdrawal of metal is controlled by the magnitude of suction pressure. The metal is discharged from a submerged opening in the enclosed chamber under the influence of gravity at an average rate corresponding to the rate of withdrawal from the furnace through the siphon tube. Used in melting, refining and casting of molten metals and alloys. The method overcomes control problems resulting from charging, etc., by eliminating the resulting surges. The suction pressure may be periodically varied to allow the metal level to vary in order to discharge slag.
Patent DE-2836908-A1 (DE)
Title: Door or window hollow composite framework - has spaced insulating members locked between hollow metal members by pressure tool
Inventor: NAHR HELMAR DR DR
IPC: B21D53/74
Filed: 1978-08-23
Abstract: The framework for a door or window is made up of two hollow metal members (21, 22) interconnected by two spaced apart heat insulating members (3). The hollow chamber (8) enclosed by these members can then be filled with further insulating material. Each insulating member has a cross section in the form of a shallow channel, and its two flanges (33), 34) are locked inside hollow grooves (14) in the lower side of the upper metal member (22) and in the upper side of the lower metal member (21). A special locking system is used, giving a rigid structure, in which a forming tool is drawn through the hollow chamber.
Patent DE-2842770-A1 (DE)
Title: Reclining car seat with adjustment mechanism - has projection engaging spiral groove embedded in vertical displacement disc, rotating about transverse axis, parallel to seat swivel axis
Inventor: GMEINER GUENTER DIPL ING
IPC: B60N2/18
Filed: 1978-09-30
Abstract: The seat (10) moves about a swivel axis (13) set beneath and across same or a part (20, 22) connected to the seat. It is fitted with a nose-like projection (35) which engages in a spiral groove (34) embedded in a vertically disposed displacement disc (32, 33) which rotates about a transverse axis (30, 40) running parallel to the swivel axis (13) of the seat. The adjustment disc (32, 33) can be manually operated by a hand wheel (36) which is set at the side of the seat where it can be rigidly connected i.e. without translatory gears to the disc (32, 33).
Patent DE-2845987-A1 (DE)
Title: Coaxial HF cable prodn. with air insulation - involves extruding thermoplastic material at constant rate while inner conductor runs at variable speed
Inventor: KURZ RAINER
IPC: B29C48/13
Filed: 1978-10-23
Abstract: Plastics spacers from a thermoplastic material separate the inner from the outer conductor, and limit the air space between them. They are directly extruded on the inner conductor passed through the extrusion press. The thermoplastic material is extruded at a constant rate from the nozzle, while the speed of the inner conductor (9) varies, so that a plastics layer (12) of variable thickness is applied to the inner conductor. Its thick points (13) serve as spacers for the outer conductor or for a hose (16) on its inside.