baber/WOPTO huggingface dataset:
Patent DE-2653021-A1 (DE)
Title: Twin cylinder reciprocating pump for concrete - has hydraulic operating cylinders fed through two hydraulic valve cylinders
Inventor: CALZOLARI SERGIO
IPC: F04B9/117
Filed: 1976-11-22
Abstract: The pump has two cylinders with pistons moving in opposite directions. They are directly coupled to the pistons in two hydraulic cylinders. The oil is delivered by a pump through a changeover valve and two valve cylinders. The valve cylinder pistons are moved from one position to the other by a lever on the spindle of the concrete discharge changeover valve. The hydraulic changeover valve is moved by an auxiliary circuit controlled by end stop vlaves on the concrete pumping pistons. Each valve cylinder has three ports arranged so that in one position the centre port is in communication with one end port and in the other position it is in communication with the other end port.
Patent DE-2657378-A1 (DE)
Title: Modifiable acrylonitrile! and diketene copolymer prepn. - by initiating acrylonitrile and opt. ethylenically unsatd. monomer polymerisation and gradually adding diketene
Inventor: NEUKAM THEO DR
IPC: C08F2/16
Filed: 1976-12-17
Abstract: Diketene-contg. acrylonitrile copolymer prepn., by pptn. polymerisation in an aq. medium in the presence of Redox catalysts, takes place by (a) first using >=80 wt. % acrylonitrile and opt. 15 wt. % of copolymerisable ethylenically unsatd. monomer (I); (b) initiating polymerisation and then (c) polymerising the mixt. at 30-70 degrees C and pH 3-4 with the gradual addn. of 0.1-6 wt. % diketene. The copolymers can be spun to filaments and fibres. Prods. have a good colour and K-value 70-90. 80-90% Yields are obtd. quickly. Reactions at lactone ring allow polymer modification. Pref. (I) are Me acrylate, methallyl-sulphonic acid or its salts, acrylic acid or acrylamide.
Patent DE-2702834-A1 (DE)
Title: Metal tableware suitable for dishwashers - has raised cutting surface with ribbed profile for concealing scratches
Inventor: SCHUH PETER ING GRAD
IPC: A47G19/02
Filed: 1977-01-25
Abstract: The metal tableware such as a breakfast plate, butter dish or the like is made from a refined steel or enamelled metal and has a raised cutting surface which is pref. profiled by ribs or the like to give a constant non-scratch appearance. This tableware is suitable for dishwashers and has a very hard wear resistant surface which prevents the build-up of food residue. It is resistant to bending and pref. has a groove round the outside to collect up any food juices or to accommodate a lid.
Patent DE-2708993-A1 (DE)
Title: Compact handbrake lever for car - has twin levers to straddle transmission tunnel and concealed release tab beneath
Inventor: KESS WINFRIED DIPL ING
IPC: B60T7/10
Filed: 1977-03-02
Abstract: The compact handbrake lever has twin levers set each side of the transmission tunnel and linked by a transverse handgrip which normally lies flush on the top of the tunnel. The brake is released by a press tab under the handgrip. The brake lever allows an extended central console with additional fittings and controls. It has the same fitting for right and left hand drive vehicles and can be operated by the front seat passenger in emergencies.
Patent DE-2708994-A1 (DE)
Title: Transportable sand cleaning machine for children's playground - removes foreign matter and disinfects sand using hot air jets and disinfectant sprays
Inventor: HETHEY ARTUR
IPC: E01H12/00
Filed: 1977-03-02
Abstract: Machine has a hopper (1') to receive the sand. The sand is taken from the base of the hopper (1) by a vertical screw (2) which delivers it to a series of conveyors (3) mounted one above the other. As the sand passes along the conveyors it is sprayed with jets (4) of hot air at a temperature of 80 dgr. to 90 dgr.C, to kill any bacteria. Other jets spray the sand with disinfectant and preserving fluid. The sand then passes through a vibrating sieve which removes any foreign matter before it falls into the bin (8) and is then returned to the playground.
Patent DE-2715010-A1 (DE)
Title: Extruded metal profile for window frame - has non-metallic insulator inserts in longitudinal internal grooves to hold profiles together
IPC: E06B3/263
Filed: 1977-04-04
Abstract: A metal frame, such as is used on windows and doors, includes two extruded metal profiles (3, 4). The two profiles which have longitudinal internal grooves (8, 30) are held together by non-metallic inserts (1, 23). The inserts are made from a material which provides good thermal insulation. The location grooves for the inserts are tapered (7, 8) and they allow some lateral movement of the metal profiles in order to compensate thermal expansion and contraction. It is also possible to dismantle the frame so that damaged parts can be exchanged.
Patent DE-2720023-A1 (DE)
Title: Circuit measuring period of AC signals - uses zero crossing detector and hold circuit as frequency to voltage converter
Inventor: LINDEN WILHELM DIPL ING
IPC: G01R23/02
Filed: 1977-05-04
Abstract: The circuit for measuring the period of an AC waveform comprises a zero-crossing detector(4) which provides square-wave output pulses whose leading and trailing edges are determined by the zero crossing points of the input waveform. A frequency divider(6) on the output of the detector drives a sawtooth generator(8) which is triggered every cycle of the input signal. The generator is connected via a resistor(9) to an electronic switch(10) controlled by a circuit(12) driven from the outputs of the first two stages. The switch is connected to an operational amplifier(16). The amplifier has a feedback capacitor(17) and its output is also fed back via a resistor(19) to the input of the switch.
Patent DE-2720387-A1 (DE)
Title: Air pump hose clamp for tyre valve - has outer bush which fits over and extends along axial length of valve nut
IPC: B60C29/06
Filed: 1977-05-06
Abstract: The valve clamp (6) is designed for connecting an air pump hose to a tyre (1) valve (2) containing a valve tube (4) held in a housing (3) by a collar nut (5). It comprises a bush (7) in which a hollow cylindrical seal (9), capable of receiving the end of the tube (4) can be compressed against the inner shoulder (8) by an axially movable angled tubular element (10). The lateral portion (11) of the element extends through a slot in the bush and is connected to the pump hose. The bush has an extension (14) whose internal diameter fits over the nut (5) whilst its length equals that of the nut.
Patent DE-2721212-A1 (DE)
Title: Cleaning appliance for felt covering of painting roller - has ring-shaped working piece attached to handle for sliding over roller with narrower opening forging surplus paint in one direction
Inventor: HLAWATSCH DIETMAR
IPC: B44D3/00
Filed: 1977-05-11
Abstract: The cleaning appliance is for the felt covering of painting rollers. It helps to keep the hands clean and prevents waste of paint. A ring-shaped working piece (1) is attached to a handle (2) so that it can be pushed over the felt covering of the roller. The end surface (4) is slightly larger than the front surface so that the surplus paint squeezed from the roller cover by pressure exerted by the aperture (3) is forced along in one direction for possible future use. The following surface (4) can be of plastics and have guiding components for greater efficiency. The handle (2) can also be of hollow plastics with a closable opening.
Patent DE-2721952-A1 (DE)
Title: Magnetic lock and key system - has key with several metal layers with differently magnetised zones
Inventor: FOSTIERIS NICOS
IPC: E05B47/00
Filed: 1977-05-14
Abstract: The magnetic key and lock arrangement has key made of layers of different metals which have each specific magnetic absorption. Alternatively, the key can be made of a single metal with zones of specific magnetic properties. The key has blade with corresponding positions with similar magnetic strata or layers. Solid contact between the lock and key is necessary. Specific magnetic charges are generated by a special treatment, for example by electromagnetic treatment in zones. The key with different metal layers is treated for ensuring specific magnetic absorption properties for example by electromagnetic charging.
Patent DE-2722004-A1 (DE)
Title: Pedal cycle propulsion system - has non-circular grooved guide discs to extend telescopic pedal cranks on down thrust
Inventor: BIDERMANN ALFRED
IPC: B62M9/08
Filed: 1977-05-14
Abstract: The cycle sprocket (19) turns on a bearing (35) on the outside end region of the bottom bracket housing (11). The pedal cranks are telescopic and secured to the bottom bracket axle (12). A disc (31, 33) is fixed to each end of the bottom bracket housing. Each disc has a groove (32, 34) whose open side faces the respective crank. The groove accommodates a roller (28, 30) fixed to the sliding part of the telescopic pedals crank. The discs have a non circular shape calculated to cause the respective cranks to extend and increase the leverage on the downwards push.
Patent DE-2723283-A1 (DE)
Title: Insulated double glazed window wing element - has spacing stem piece forming unit with main element profile
Inventor: DELVO BERND
IPC: E06B3/66
Filed: 1977-05-24
Abstract: The system provides simplified manufacture of insulation glazing and window wing profiles, normally involving installation of the panes in a separate wing frame with additional stabilisation on the inside. Here use is made of a spacer stem piece (2a), to form an entity with the element profile piece. There is no need for separate glass retainer bars to be made and installed, nor for blocking panes in position, nor for additional inside and outside peripheral sealing. Repairs are also quicker.
Patent DE-2725404-A1 (DE)
Title: Plastics spacer for shuttering used in concrete structures - are tubes with incision-like grooves transversely to axis of spacer, ensuring good adhesion of spacer to concrete
Inventor: PAECH PETER DIPL ING
IPC: B29C48/12
Filed: 1977-06-04
Abstract: Spacer for shutter boards composing shutters for concrete comprises a plastics tube having a surface provided with depressions which are numerous grooves running transversely to the axis of the tube. The grooves are shorter than the circumference of the tube and are circumferentially staggered wrt one another. Used for accurate spacing of concrete shutters, an also double for housing the clamping irons which hold the shutter boards together. When the shuttering is dismantled the spacers are left in the concrete structure whilst ensuring good bonding to the same so that no water can subsequently seep along the surface of contact of spacer and concrete.
Patent DE-2726460-A1 (DE)
Title: Equipment to accommodate stacked oblong items - has four columns in square containing criss=crossing layers
Inventor: GLOMB KLAUS DIPL ING
IPC: B65G57/18
Filed: 1977-06-11
Abstract: The equipment accommodates oblong items stacked in layers, having four columns (11) arranged in a square on a horizontal frame and contg. the items (1) in criss-crossing layers, forming a storage unit. A transporting grab mechanism has two parallel horizontal arms movable at right angles to their lengthwise axes in relation to each other, the arm length being equal to the interval between adjacent columns. A store discharge mechanism has four further columns arranged in a square on an plate skewing through 90 deg. or more. This has a base opening which can be shut off, its width being equal to the interval between columns and its length to that of the items handled.
Patent DE-2726638-A1 (DE)
Title: Combination float for fishermen - has antenna with float connected with conventional angling float in which it can be moved
Inventor: SMOLAREK WALTER
IPC: A01K93/00
Filed: 1977-06-14
Abstract: The combination float is for both amateur and professional fishermen. An antenna (3) with a float (1) is connected to a conventional angling float (2). This antenna (3) can be angling float (2) and is vertically set by the guide in the float (2). The guide loosely encloses the antenna and is held in the form of a double cone. The side carries over into a conical cavity for sight marking, and the float (2) has air chambers (6). The antenna (3) is in the form of a long rod.
Patent DE-2727179-A1 (DE)
Title: Chime of bells using electromechanical impacts - has coils of strikers connected to supply source through electronic stage and has at least one key
Inventor: BECK WERNER
IPC: G10D13/08
Filed: 1977-06-16
Abstract: The bells in the chime are of different sizes, and have different resonant frequencies. The bells (10) are suspended through non-metal intermediate elements with limited mobility. The excitation coil (14) of a magnetic striker hitting the bell near its rim is connected to a supply source (19) through an electronic stage (15) determining the force of the strike and strike sequence, and through at least one key (17, 21) of a keyboard. Each stage (15) of the electronic control unit includes a multivibrator (20) with an adjustable flip frequency; a circuit connector (16) in each control unit links the multivibrator with the striker.
Patent DE-2737742-A1 (DE)
Title: Calcium carbonate fillers for paper, prodn. - by adjusting the pH of a suspension of calcium carbonate to 5 to 12 with an organic or inorganic acid
Inventor: BOZSITS BELA DIPL ING
IPC: D21C11/00
Filed: 1977-08-22
Abstract: Fillers for use in the paper industry are made by forming a is not >75 wt.% suspension of CaCO3 (opt. contg. impurities) in water and adjusting the pH of the suspension to 5-12 with organic and/or inorganic acid(s). The pH may be adjusted in two or more stages with different acids, or in several stages with a single acid. Process is esp. useful for treating the causticising sludge obtd. as a by-prod. in the regeneration of sulphate cellulose, and consisting mainly of CaCO3 contaminated with K,Na,Mg,OH,S and silicate ions, to give a material which can be used as a filler in papermaking. The slurry of causticising sludge may be mixed with a calcium hypochlorite slurry, using is not >25 pts. wt. Ca in the hypochlorite per 100 pts. wt. Ca in the causticising sludge. Up to 10 wt.% water glass may be added to the suspension before adding the acid.
Patent DE-2743136-A1 (DE)
Title: Pneumatic conveyor sampling device - has collector nozzle swung down into path of conveyed material by handle outside duct
IPC: G01N1/20
Filed: 1977-09-24
Abstract: The sampling device mounted on the side of the rectangular duct (11) of a pneumatic conveyor has a horn shaped collector (19) which can be swung upwards or downwards to a horizontal position facing the direction of flow, into its collecting position. Its necked end is attached to a collar (28, 34) passing through the side of the duct, on which is mounted a discharge tube (29) outside the duct. The collector is attached to a plate (17) inside the duct, with a seal (23) behind it. This plate has a spindle (15) through it, attached to a handle (35) outside the duct by means of which it is rotated. The collector can be swung upwards to a position above the level of the material conveyed through the duct, where it is out of use.
Patent DE-2747008-A1 (DE)
Title: Rain water pipe fitting for filling butt - has branch with conical portion in vertical arm, forming weir to prevent overflow
Inventor: RAMM DONALD WILLIAM
IPC: E03B3/02
Filed: 1977-10-19
Abstract: The rain water drain pipe incorporates a fitting which enables a water butt or other container to be filled with rain water, but which prevents the butt from being over filled. This fitting is a branch with vertical parts holding the two ends of the upper and lower pipe portions, and with a side outlet for the butt. Between the two vertical parts is a horizontal division plate with an open topped cone portion protruding upwards from it. Its height is less than the diameter of the side outlet, so that falling rain water is diverted sideways through the branch into the butt. The cone has a cut out on the side facing the branch, about half the height of the branch. When the butt is full, this step ensures that all the rain water continues downwards through the vertical pipe.
Patent DE-2748487-A1 (DE)
Title: Insulated composite window or glazed door - has additional weatherproof outside blind frame screwed to main blind frame
Inventor: LEUE ERNST
IPC: E06B3/30
Filed: 1977-10-28
Abstract: There are a main blind frame, fixed in the wall, and outer and inner wing frames, in the composite door or window. The two latter are glazed and united by fittings making them into a wing, while other fittings link them to the blind frame so as to permit opening. An external auxiliary blind frame (20) is positioned in front of the main blind frame (40), made of weatherproof material. Its frame opening is smaller than that of the main frame all round, while its shanks are screwed to those of the latter. The outer wing frame (10) is also made of weatherproof material, and combines with the auxiliary blind frame to effect sealing.
Patent DE-2750743-A1 (DE)
Title: Tyred wheel for railway use - has resonance dampers pressed into annular grooves at right angles or parallel to axle axis
Inventor: RAQUET ERWIN DR RER NAT
IPC: F16F15/32
Filed: 1977-11-12
Abstract: The tyred wheel is for railway use and incorporates damping. The damping is given by a damping material, fitted to the body of the wheel. It can be applied to either disc type wheels or solid type ones. The wheel is machined to have annular grooves. The grooves can be parallel to the axle or at right angles to it and on either side of the wheels. The damping plates are pressed into these grooves and can be held either by a system of bolting, or by welding. The plates can be of sandwich type and are curved to suit the radii of the annular grooves in which they are fitted.
Patent DE-2751398-A1 (DE)
Title: Bale handling attachment for tractor - has power cylinder which operated movable arms guided by fixed arms
Inventor: SOUPA FRANCIS
IPC: A01D87/12
Filed: 1977-11-17
Abstract: The attachment fits on a tractor and enables bales of fodder to be picked up and deposited on a trailer. It is raised and lowered using an arm fixed at an angle to the tractor direction. it comprises a frame (13, 14) forming a pair of fixed arms (11, 12) splayed outwards at the ends (110, 120) and provided with stops (111, 121) contacting the ground. A pair of mobile arms (1, 2) pivot on this frame, operating in the same plane as the fixed arms to grip the bale between them. A double ended power cylinder (8, 81) is located (5) between the upper ends of these arms to control their movement.
Patent DE-2757187-A1 (DE)
Title: Mechanism to separate sheet from stack base - has roller table on axis parallel to side of stack
Inventor: RATHERT HORST ING GRAD
IPC: B65H3/30
Filed: 1977-12-22
Abstract: The mechanism separates the lowermost sheet from a stack in a stationary magazine, having a support table and a rotary indexing suction body moving together under the stack. The body rolls over the lowermost sheet, lifting it clear and transfers to a delivery point. The table is of the roller type (2) rotating on an axis parallel to the side of the stack, and the body is a round truncated cone (13) mounted in the table. The mazazine (A, B) above the table with the stack of sheets can be in such a position in relation to the rotary body that this separates a sheet starting from one corner.
Patent DE-2807626-A1 (DE)
Title: Detachable particle collector for small grinders - comprising an injection moulding of medium density polyethylene, used e.g. by jewellers or dentists
Inventor: COTY DAVID
IPC: B24B55/06
Filed: 1978-02-22
Abstract: The moulding comprises a main portion with which a quick-action locking and unlocking device is integrally combined. The particle collector overhangs the driving shaft and the grinding disc of the machine. There is an integrally attached passage section allowing the ground-off particles to be discharged, to which a suction device for removing the particles intercepted by the collector is attached.
Patent DE-2808379-A1 (DE)
Title: High-speed rotating electrical machine - has trapezium voltage induced in stator winding by permanent-magnetic rotor by appropriate choke of pole width and winding depth
Inventor: WEHDE HEINZ DR RER NAT
IPC: H02K29/12
Filed: 1978-02-27
Abstract: The rotating machine has a polyphase slotless winding on a ferroplastic soft-magnetic stator. The rotor has permanent magnets generating a magnetic field in the region of the winding such that the section of the n-phase winding have a trapezium-shaped voltage induced in them whose flat top is constant in amplitude over a range equal to or greater than 360 deg. elmn. The magnetic field is defined by approximately choosing the ratio of the average pole width (b) of the permanent magnets to the winding depth (h). This ratio is approx.
Patent DE-2813332-A1 (DE)
Title: Thermoplastic strand granulator - with side stream of coolant on perforated plate, revolving flow removing cut granules
Inventor: JARAUSCH HANS
IPC: B29B9/06
Filed: 1978-03-28
Abstract: Extruded strands of thermoplastics are granulated under water in a granulator which is divided by a partition into a coolant supply chamber with a tangential inlet and a granules receiver with a tangential outlet. Louvres are provided in the partition and channels with an annular distributor pass coolant to guide vanes facing the cutter blade array. The sum of the cross-sections of louvres and channels is less than the coolant inlet cross-section. This eliminates any excessive cooling of the perforated plate and any possible freezing of the strands in the perforations. The cut granules are quickly removed and clogging by agglomeration has been avoided.
Patent DE-2827574-A1 (DE)
Title: Glass-fibre-reinforced PVC car body parts - are made by blow-moulding PVC component, placing into prepreg-lined mould, and curing under pressure
Inventor: KNUEDEL GUENTER ING GRAD
IPC: B29C33/00
Filed: 1978-06-23
Abstract: Mfr. of mouldings is carried out using pre-impregnated glass-fibre mattings or fabric ("prepregs"). A 'lost mould' in the shape of a hollow body is prepared from a material having the properties and characteristics of PVC. The resulting hollow body is placed into a repeat mould lined wiht prepregs. The mould is closed, and hollow body and prepregs are press-moulded and cured. During this last step, the hollow body is subjected to pressure, suitably by supply of compressed air. The hollow body may be made by blow-moulding. Any fittings and/or reinforcements are fixed to the hollow body before the mould is closed.
Patent DE-2829434-A1 (DE)
Title: Display case for guest house vacancies - has text and picture information fields and indicator elements for free and occupied states
Inventor: ROTTLER HORST
IPC: G09F13/04
Filed: 1978-07-05
Abstract: The display case for information on possible vacancies in guest houses has a basic casing fitted in the brickwork and having outer margins and inner fittings for lights, power supply etc. for lettering or picture fields. A frame has slide-in units for illuminated pictures of the guest houses and text information fields next to them. Switches and signal lamps are assigned to the pictures. There are glass doors with hinges, which fit into a metallic frame. Correct spacing is ensured by distance pieces secured into the required attachment points.
Patent DE-2846575-A1 (DE)
Title: Rotary drive with three plastics conical cogs - which are mounted onto motor via holder and have weights incorporated
Inventor: BOTT WERNER
IPC: H02K7/06
Filed: 1978-10-26
Abstract: The rotary drive has three conical cogs (1-3), a holder (4) and two weights (5). Two of the cogs (2, 3) circulate about a central fixed cog (1) via the holder. The drive shaft (6) of the motor (7) projects through a central hole (8) in the middle cog (1) and is fixed at the centre of the holder. The weights (5) are pref. on the underside and/or in the rotating cogs (2, 3) and arranged in specified initial position. The cogs are made of plastic and the weights of metal. The weights are pref. incorporated into the cogs. The advantage lies in constant speed. The drive is for use in aerospace vehicles.