baber/WOPTO huggingface dataset:
Patent DE-2837506-A1 (DE)
Title: Compressed air supply for dual circuit vehicle brake - has single compressor and regulator with non-return valves isolating defective circuit
Inventor: MUELLER WOLFGANG DIPL ING
IPC: G05D16/04
Filed: 1978-08-28
Abstract: The compressed air supply source is for a number of loads at different pressure levels. A single compressor with only one pressure regulator ensures a supply of compressed air in sufficient quantities and at a required pressure level automatically. The pressure regulator (2) is set on the max. pressure level. The pressure limited (7) is connected in downstream branch (5, 8) and it is set on low pressure stage. Another branch (4, 6) is connected for the max. pressure stage between the regulator and the pressure limited. Supply to defective connected load circuits is prevented by nonreturn valves in branches which limit back flow.
Patent DE-2839569-A1 (DE)
Title: Radioactive sample flask machining system - has comparator to check accuracy of workpiece using signals verified against those from coder
Inventor: GUMB LOTHAR
IPC: B23B5/00
Filed: 1978-09-12
Abstract: The coding unit is for monitoring a lathe producing flasks for the radioactive samples from fuel rods. A number of rotary cutters on a support are movable towards the workpiece into an engagement position where some of them are locked. A control unit determines the locking of certain tools, their advance and return to the rest position. A checking unit verifies the agreement between the coding signals derived from the rotary body surface and coded data held in the control unit.
Patent DE-2840686-A1 (DE)
Title: Underfloor heating system for existing housing - uses concrete or plaster slabs with embedded pipes and reinforcements and insulating base layer
Inventor: STUBER EBERHARD DIPL ING
IPC: F24D3/14
Filed: 1978-09-19
Abstract: The underfloor heating system for installation in existing houses especially old houses, uses prefabricated elements made of a heat conducting material such as concrete or plaster with metal tubes embedded in them. The tubes are arranged to form a zig zag coil for circulating a heating fluid. The underside of each slab shaped element includes a supporting and insulating layer. The element is strengthened by attaching wires or metal plates to the embedded tube.
Patent DE-2841878-A1 (DE)
Title: Schistosomicide N-methyl:carbamoyl-glycyl sulphanilamide(s) - prepd. e.g. by reacting N-phenyl-glycyl sulphanilamide cpds. with methyl isocyanate
Inventor: HORSTMANN HARALD DIPL CHEM DR
IPC: C07C311/46
Filed: 1978-09-26
Abstract: New sulphanilamide derivs. are of formula (I): (where R' is H, alkyl, alkenyl, cycloalkyl, alkoxy, alkenyloxy or alkynyloxy; R2 is H, alkyl, alkenyl, alkoxy, alkenyloxy or alkynyloxy; or R' + R2 is (CH2)n in which in is 3,4 or 5; and R3 is H or aryl). (I) are useful as agents against schistosomiasis in human and veterinary medicine. Dosage is generally ca 100-1000 mg/kg per day.
Patent DE-2845078-A1 (DE)
Title: Pencils with emulsifier-contg. leads - coated with methyl vinyl! ether-maleic anhydride copolymer adhesive
Inventor: HANDL WERNER
IPC: C09D13/00
Filed: 1978-10-17
Abstract: Pencils have emulsifier-contg. leads for making water soluble marks, in which the lead is bonded to the jacket, e.g. of wood, by a reaction product of the emulsifier and a coating of methyl vinyl ether/maleic anhydride copolymer. The emulsifier is pref. polyethylene glycol, fatty acid mono- or di-ethanolamide, or ethylene oxide adduct of a fatty alcohol, alkyl phenol, fatty acid, fatty amide or fatty amine. Good adhesion is obtd. by a simple process, where usual adhesives e.g. polyvinyl acetate, fail owing to emulsifier present on the surface.
Patent DE-2851681-A1 (DE)
Title: Log support mechanism during sawing - has points in guide actuating lever to extend or retract support brackets
Inventor: CORBEE CLEMENT
IPC: B27B29/08
Filed: 1978-11-29
Abstract: The mechanism supports a log during sawing into two or into heavy boards, being mounted on the log support truck and having retractable extensions of brackets sliding so as to fit under the log. The brackets are controlled by a lever on a spindle on the frame and having a roller on the end movable along a profiled guide resting on the ground. Approximately at the height of the saw blade the guide (27), which runs for the whole distance over which the truck travels, is interrupted for a length sufficient to accommodate pivoting points (28). Upstream of the saw blade the roller (21) on the lever (18) travels along the guide face towards the blade, holding the brackets (24) retracted.
Patent DE-2851868-A1 (DE)
Title: Laterally guided chain for tracked vehicle - fits between inner side face of connected parallel wheels
Inventor: WOESSNER HEINZ
IPC: B62D55/08
Filed: 1978-11-30
Abstract: The track chain guide arrangement is intended for a tracked vehicle having the chain running around a forward and a rearward chain wheel carried in a frame which also carries the chain support rollers. Each chain wheel consists of two co-axial parallel spoked wheels connected by axial cross-members. The inward facing surfaces (26) of the wheels act as lateral guides with sliding contact for the chain link connections. The cross-members of the driving chain wheel may be provided with a ring carrying blocks which extend radially between inward projections of the chain links.
Patent DE-2905790-A1 (DE)
Title: Push bench tube drawing machine - uses bench foundation to accommodate all axial and bearing forces
Inventor: TERDENGE BERNHARD
IPC: B21C1/26
Filed: 1979-02-15
Abstract: The bench has a frame bed for a roller frame; a rack, axially displaceable in a guide bed, to drive a shaft- and mandrel rod; and a bearing block. The block has pinions meshing in the rack. Frame bed and block are connected by pre-stressed tension rods. The foundation (19) accommodates all axial forces and bending forces between frame bed (17) and bearing block (22); esp. those which are directed against the preload of the tension rods (18). The guide bed (13) for the rack is located between frame bed and block, and is only acted upon by the radial guide forces from the movement of the rack.
Patent DE-2909459-A1 (DE)
Title: Finishing paper to improve wet strength - by treating pulp with resin and alkylamine-
Inventor: BAUTZ WILHELM
IPC: D21H17/50
Filed: 1979-03-10
Abstract: Prodn. of mass-finished paper comprises adding to the pulp, after milling, resin soaps and/or aminoplast resins, then treating the resin-contg. pulp with an aq. soln. of a lower aliphatic amine(I) before supplying to the sieve. The pulp is then converted to sheets and dried conventionally. Pref. (I) are (CH3)nNG3-n (n=1-3) used at a concn. of 0.2-1.5 (1.0)g/l(expressed as CH3NH2)in the dilution water. Treatment with (I) improves wet strength by catalysing reaction/crosslinking between the resin and paper fibres. The treated sheets do not release formaldehyde during drying or storage.
Patent DE-2913969-A1 (DE)
Title: Waste water ducting system return flow check - has open space for dirt between seal hinge and inflow duct sealing surface
Inventor: COMBE HUBERT
IPC: E03F7/04
Filed: 1979-04-04
Abstract: A sealing elment is hinged to a housing unit for an outflow duct. It works in conjunction with a sealing surface on an inflow duct, in the return flow barrier, esp. for waste water systems. Here an open space (F) is provided between hinge joint (2) and sealing surface (11). The space (F) is pref. sited at an internal of 1/10 to 1/3 of the inflow duct (8) dia. above the bottom of the housing and is made of flexible elastic material, while the sealing element is spherical and the housing floor (16) is funnel-shaped. Dirt particles can rest in the open space, so that sealing closure is only temporarily interrupted and they float away on re-opening.
Patent DE-2916235-A1 (DE)
Title: Single grain seeding implement - has two liners hinged on both sides of rear wheel to wheel axle
Inventor: LINK ALFRED ING GRAD
IPC: A01C7/04
Filed: 1979-04-21
Abstract: The single grain seeding implement has a supply tank a separator and a share rigidly fixed to a frame. This is held horizontally by a parallelogram linkage. The frame also carries two opposite swing arms, each for a wheel and these are so connected by a coupling rod that the swing arms can perform like swivel motions. Two liners (10, 11) are hinged on both sides of the rear wheel (8) to or near to the wheel axle (12). They are connected with the frame (1) by a coupling (18), parallel to the swing arm (7) and of the same length.
Patent DE-2922287-A1 (DE)
Title: Retaining system for lens holder - includes groove shaped to allow resilient centering ring to expand radially under compression
Inventor: KOEPPE HERMANN DIPL ING
IPC: G02B7/02
Filed: 1979-05-31
Abstract: The lens holder, which may be shaped to hold e.g. three lenses, has a groove (7) to hold an o-ring (6) to retain the lens (3) in position. The ring is of resilient material, and the groove is shaped in cross section to give a good centering position. In one form this section can be rectangular, positioned so that the ring is forced radially outwards when compressed against the edge of the lens, which is supported by a shoulder (5) at the rear. In alternative forms, the groove section may be semicircular or trapezoidal.
Patent DE-2923344-A1 (DE)
Title: Railway vehicle shock absorber - has main damper rod sliding in elastomer filled chamber and smaller rod for initial damping
Inventor: KEDZIOR JOZEF DIPL ING
IPC: B61G11/14
Filed: 1979-06-08
Abstract: The shock absorber for a railway vehicle has a housing (1) with a guide element (8) for a rod (10) extending into a chamber (3) filled with an elastomer. The rod (10) provides the main damping action. At the housing end opposed to the element (8) is a further guide element (5) for a rod (7) providing initial damping action. The damping rod (7) is smaller than the main damping rod (10). The second rod (7) may extend into a separate damping chamber (2) whose cubic capacity is smaller than that of the main chamber (3), or there may be one common elastomer-filled chamber.
Patent DE-2924197-A1 (DE)
Title: Sound absorbing textile wall lining - using plastic foam and thermoplastic mat backing
Inventor: SCHNEIDER ERWIN
IPC: B32B27/12
Filed: 1979-06-15
Abstract: A sound absorbing lining for the passenger compartment of motor vehicles is produced by applying, for example, a polyurethane copolymer foam with a filler of barite at a rate of 60wt% on the rear of a tufted carpet. In a separate process, a polyester mat with a weight of 20-70 g/sq.m is turned into a foil of 100-300 microns by sintering thermoplastic powder on it. This is bonded by an adhesive to the foam. After infrared heating, the panel is pressed to the desired shape. Such linings have an excellent noise absorption and retain a stable shape under extreme temp. fluctuations.
Patent DE-2925958-A1 (DE)
Title: High output laundry spinner - has horizontal drum open at both ends and pref. of conical shape
Inventor: ARENDT HANS F
IPC: D06F49/02
Filed: 1979-06-27
Abstract: Spinner has a perforated drum which revolves around a horizontal axis, and which is open at both ends to improve the speed and efficiency of throughput, the laundry being loaded at one end and unloaded at the opposite end. The drum pref. has a conical form, whereby the dia. of the outlet end is twice, or pref. three times that of the inlet end. A centrifugal force of 0.5 g at the inlet thereby increases to above lg at the outlet. The low initial force permits an even distribution of the load, reducing vibration and enabling much higher speeds to be used, equivalent to a centrifugal force of at least 100 g. This considerable increases the speed of throughput, and the overall productivity.
Patent DE-2928097-A1 (DE)
Title: Mono: and di:nitrile dimerisation and/or oligomerisation - and prod. use as antistatics and flame retardants for plastics and fibres
Inventor: NAARMANN HERBERT DIPL CHEM DR
IPC: C07C255/32
Filed: 1979-07-12
Abstract: Nitriles having formula R-CN, (I), or dinitriles having formula NC-R3-CN, (II), (where R is -CHR1R2 or -C(R1)2R2; R3 is -CHR1-R4-CHR1-; R1, R2 are H, opt. unsatd. opt. branched aliphatic hydrocarbyl, aryl, cycloaliphatic or opt. substd. aromatic hydrocarbyl and R4 is opt. branched alkylene, alkylene oxide, cycloalkylene or opt. substd. arylene, arylene oxide or arylene sulphone) are dimerised and/or oligomerised with organic peroxides, at 120-200 deg.C, in a protective gas atmos. The dimers and/or oligomers are new. Dimer and/or oligomer use as antistatic finishes and/or as flame-retardants for plastics and fibres is claimed. The prods. can also be used as high-boiling solvents and as starting materials for the corresp. acids, their derivs. and, after redn., for prim. amines. The dimers and/or oligomers do not sweat out of plastics and have high complex-forming capacity for metal salts.
Patent DE-2938073-A1 (DE)
Inventor: KNECHT BERNARD DR
IPC: H01C7/12
Filed: 1979-09-20
Abstract: In the case of an over voltage suppressor which is enclosed in an electrically conductive and earthed housing (K), has suppressor elements (A) which are stacked above one another in the form of a column as well as having screening elements (B1, ... Bm) and voltage-controlling elements (R0, ... Rm) the distribution of the electrical field to be controlled is intended to be necessary only at the normal operating voltage (HV). This is achieved in that non-linear solid-state resistors are provided as the suppressor elements (A), which are free of extinguishing spark gaps and consist, for example, of zinc oxide, and non-reactive resistors (R0, ... Rm) are provided as control elements. The non-reactive resistors are dimensioned in such a manner that the radial and azimuth components of the electric field (Er, En) virtually disappear at the normal operating voltage. Such suppressors are particularly well suited for protecting encapsulated switching installations which are filled with sulphur hexafluoride. <IMAGE>
Patent DE-2941729-A1 (DE)
Title: Oscillator regulating loop e.g. for linearisation - uses comparison of outputs of two frequency to DC signal converters
Inventor: MALINOWSKI CHRISTOPH DR ING
IPC: H03L7/18
Filed: 1979-10-15
Abstract: The loop for linearisation of the voltage to frequency characteristic of a voltage controlled oscillator, uses a frequency to DC signal converter receiving the oscillator output and a comparator. One input of the comparator receives the output of the latter signal converter, its second input receiving the output of a second frequency to DC signal converter coupled to a frequency source. A control circuit may be inserted between the second signal converter and the amplifier for amplifying or attenuating its output. Both the signal converters are pref. of similar configuration, e.g. identical integrated circuits formed on the same semiconductor chip.
Patent DE-2945718-A1 (DE)
Title: Safety valve with pressurised sealing ring - has flange behind ring to prevent flow under high pressure
Inventor: NEMETZ JOSEF
IPC: F16K17/04
Filed: 1979-11-13
Abstract: The parent patent describes a safety valve in which the valve cone is seated in a conical seating and flexible sealing ring is forced by the fluid pressure against the conical face of the valve until actual lift-off occurs under the limiting pressure. In the patent of addition, this flexible sealing ring is backed up by a supporting flange or rim on the side towards the cone. This supporting flange pref. has an angle corresponding to the cone angle. This arrangement ensures backing to the flexible sealing ring, preventing it from flowing or distorting under high pressure. The flexible sealing ring may be of metal, or of plastics, esp. PTFE.
Patent DE-2947333-A1 (DE)
Title: Variable exposure shutter for cine camera - has variable shutter blade rotating with main blade and set by separate motor
Inventor: BLASCHEK OTTO
IPC: G03B9/12
Filed: 1979-11-23
Abstract: The variable exposure shutter has a rotating segment shutter (1) whose dark period represents the min. dark time required for the claw to index the film. A second segment (2) is pivotted coaxially and is driven by a stepping motor (4) mounted on the shutter drive shaft. The stepping motor provides a direct control of the dark period of the shutter cycle, from min. to fully closed. It replaces the costly and noisy differential drive for mechanical shutter control. Electronic control circuits provide the shutter drive controls while photocells monitor the exposure value of the shutter setting.
Patent DE-2947474-A1 (DE)
Title: Electric lamp bayonet base and holder - has two set length connecting pins and protected contacts in lamp base, esp. for corrosive conditions
IPC: H01K1/46
Filed: 1979-11-24
Abstract: Electric light bulb unit has an improved contact mechanism and improved safety features to provide corrosion resistance if used in damp conditions. The bulb (10) has a metal skirt (12) and insulated bottom (13) type base (11) which fits into a bayonet holder (20). The skirt (12) carries the bayonet locking pins (14) and the insulated bottom (13) the two pin type electrical contacts (15). The two pins contacts (15) extend a predetermined length (16) from the lamp base. They (15)make contact with spring contacts (31,34) in 'U' formation under a protective base plate (25) in the holder (20). Slits in the protective base permit the contacts on the lamp to make with the springs (34) in the holder. The holder spring (31,34) are in an enclosed capsular type housing.
Patent DE-2950369-A1 (DE)
Title: Extending operational amplifier output current range - using additional current from DC voltage source
Inventor: KRAHL BURGHARD ING GRAD
IPC: H03F1/02
Filed: 1979-12-14
Abstract: The circuit is for shifting the output current range of an operational amplifier used as the controlling parameter in a regulation or control circuit enables the positive or negative output current range to be expanded without the use of transistors. This is achieved by connecting the output of the amplifier (4) to one pole (1) of a direct voltage source via a resistor (2). The amplifier regulates the voltage drop across a variable load resistance (12) to a value proportional to the positive voltage at the non-inverting amplifier input (3). The proportionality factor between the two voltages depends on a potential divider consisting of two ohmic resistors (10,11). The output of the operational amplifier can act as a current source and as a current sink.
Patent DE-3007115-A1 (DE)
Title: Loudspeaker using single magnet for three diaphragms - has circular pole shoes providing air gaps for concentrically moving coils
Inventor: EHMANN OTTO
IPC: H04R9/02
Filed: 1980-02-26
Abstract: A single magnet system may comprise three moving coils. A permanent ring magnet has ring-like pole shoes and an axial pole shoe. There are three concentrical moving coils. The smallest one is connected to a calotte membrane for the frontal emission of the very high frequencies. A middle coil in the annular air gap drives a cone also radiating sound, of the medium frequencies, in a forward direction. The third moving coil is placed into an air gap between the back plate and pole shoe, and is connected to a large cone radiating sound at the very low frequencies downwards, away from the audience, relying on reflection from walls and furniture. An insert piece is glued into the magnet structure for ensuring structural stiffness. Two of the airgaps have serially-connected magnetic flux. The smallest one is in parallel with it.
Patent DE-3012238-A1 (DE)
Inventor: STOECKLOECKER HEINRICH DR ING
IPC: E04H12/08
Filed: 1980-03-28
Abstract: The metal mast has a closed profile which is formed by the longitudinal welding of the edges of individual open metal profiles. Of two edges which are welded together, one has a castellated progression and is only welded to the other edge along its projecting regions. The metal mast is preferably composed of two or more identical angles (2, 2') or pipe segment profiles. The mast can be produced very easily by cutting out of a sheet-metal band, along a castellated cutting line (1) arranged in the central region thereof, two strips (2, 2') with the castellated delimitation on one longitudinal side. After the strips have been deformed to form profiles, they may be welded, in each case along the projecting region of a castellated edge, to a smooth edge. <IMAGE>
Patent DE-3020887-A1 (DE)
Title: Granulation of molten metallurgical slag - by water which contains surfactant to reduce the amt of sulphurous gases released into the environment
Inventor: BURLAKOV VLADIMIR I
IPC: C21B3/08
Filed: 1980-06-02
Abstract: The molten slag is converted into a granulate by treatment with water. The water contains in soln. 0.2-1.5 wt.% of surfactants which create a foam and thus reduce the amt. of sulphurous gases released into the atmos. during the granulation process. Used esp. in mfg. a granulate used as an aggregate in the prodn. of cements. The aq. soln. of surfactants removes sulphurous gases from the steam created during the granulation process. The need for costly air purificn. plant is thus eliminated.
Patent DE-3025156-A1 (DE)
Title: Punching press with locking plates - has clamping cylinder-operated locking elements engaging with slot in tool bottom parts
Inventor: RICHTER KLAUS ING GRAD
IPC: B30B15/02
Filed: 1980-07-03
Abstract: The tool upper part as well as the bottom part are fixed to the press table and/or the ram by locking plates. The parts are kept together for the optional duration of the working process by a locking bolt operated by a hydraulic cylinder and working together by a slot in the locking plates. Each locking plate has a recess on the bottom surface of the tool bottom part. The recess has the shape of a hollow cylinder. The press table is fitted with four clamping cylinders. Each cylinder has a socket with pressurised oil connections and the cylinder carries a piston rod with a heat part acting as a locking element.
Patent DE-3028271-A1 (DE)
Title: Electric backing oven inner chamber - has walls of sheet metal coated with enamel, containing self-cleaning catalyst and burnt at low temp.
Inventor: KLEMENT JOHANN
IPC: F24C15/00
Filed: 1980-07-25
Abstract: The inner surface of the oven muff is coated with a layer providing a catalytic self-cleaning effect. The inner chamber walls (2-6) are made of corrosion-resistant material coated with an enamel layer burnt below 300 deg.C, this enamel layer having the catalytic self-cleaning properties. The side wall may have rib-shaped stampings for insertion of the food supports, which are also coated with a self-cleaning enamel layer. In this manner the production of the oven is simplified, while providing robust design for careless handling. Fire-aluminised sheet metal or steel sheet with corrosion protection is used as basic material. The enamel may be a mixture of a catalyst and a sodium silicate binder, applied directly onto the corrosion-resistant sheet metal. The enamel burning takes place at temperatures between 100 to 200 deg.C.
Patent DE-3029199-A1 (DE)
Title: Heat insulated roof structure - with ribbed heat insulating panels and cover plates for warm air channels
Inventor: GLASER HORST
IPC: E04D1/12
Filed: 1980-08-01
Abstract: the structure for a pitched roof consists of trusses carrying a heat insulating layer pref. polystyrene 10 cm. thick and density 30 kg/sq.mm. with air channels on top from which the air, heated by solar radiation, is extracted by a heat pump for space heating. These panels have several parallel square ribs which extend up to the roof top. Cover plates, made of material with a good heat conductivity, are laid on the insulation in slate roof fashion to close the air channels. These cover plates have at the upper end a turned-down ledge by which they are held by friction in slots in the panel ribs. This combines solar heat recovery with lightweight and simple assembly.