baber/WOPTO huggingface dataset:
Patent DE-2503708-A1 (DE)
Title: Alpha-olefin polymerisation catalyst contg. titanium trichloride - and an organo-aluminium cpds., has good stereospecificity
Inventor: RUST KURT DIPL CHEM DR
IPC: C08F10/00
Filed: 1975-01-30
Abstract: Catalyst is prepd. by reacting TiCl4 with an organo -Al cpd. contg. a dialkyl Al chloride in an inert hydrocarbon solvent, heat-treating the reaction prod. contg. TiCl3, opt. in the presence of an ehter, sepg. and washing the reaction prod. (component A) and mixing it with a dialkyl -AL halide (component B) and opt. with a cyclopolyene as stereo-regulator (component C). (A) is prepd. by adding the organo -Al cpd. at 20 degrees C to +20 degrees C to the TiCl4 in a mol. ratio of dialkyl Al chloride: TiCl4 of 0. 8:1-1.5:1, the resulting solid prod. being heat-treated at 40-150 degrees C, and then heat-treated again in the presence of a dialkyl ether, and sepd. As alpha-olefin polyms. catalyst, esp. for propylene, and as catalyst for the sequenched copolymsn. of alpha-olefins with each other and/or with ethylene, the polymsns. being effected opt. continuously, in suspension or the gas phase at 1-50 kg/cm2 press./20-120 degrees C. The catalyst has high activity and good stereo specificity (which itself depends on the polymsn. temp.).
Patent DE-2508966-A1 (DE)
Title: Automatic welding of boiler tube ends - with prior mechanical working of tube ends to constant bore dia and wall thickness
Inventor: KRUEGER FRIEDRICH
IPC: F16L13/02
Filed: 1975-03-01
Abstract: Process for the welding of boiler tubes, using welding appts. fixed on the ends of the tube and employs a rotating electrode. The tube ends are expanded to the max. permissible bore dia. allowed by the dimensional tolerances and, starting from that bore dia. the surface of the tube end is mechanically worked to produce the min. permissible wall thickness, after which the welding appt. is placed on the tube ends for the welding operation. The wall thickness is pref. reduced to an average value between the min. and nominal values, and twice the average value is used to select a bore dia. starting from an average outer tube dia. Permits the automatic welding of boiler tubes, because the external mechanical working, e.g. milling results in a truly round tube so a constant welding arc length is obtd. as the welding appts. is mounted on the outside dia. of the tube. The constant arc length and constant tube wall thickness result in a constant welding current and optimum weld quality.
Patent DE-2515295-A1 (DE)
Title: Temperature measuring device - of a granular or paste-like mix during the mixing process
Inventor: SCHUSTER ERICH ING GRAD
IPC: G01K13/02
Filed: 1975-04-08
Abstract: Measurements are made during mixing in a paddle mixer or a kneader with mixing shafts. At least one sheathed thermocouple projects into the turbulent zone of the mixing space, and enters into a recess in the mixing shaft. Slip-rings for the signal collection are provided on the driving shaft end outside the mixer pan, with the wires connecting the thermocouple to the slip-rings running in an axial bore between the recess and the shaft butt end. This arrangement has the advantage of avoiding false readings caused by encrustations on the sensor since the mixture flow prevents the building up of deposits.
Patent DE-2519519-A1 (DE)
Title: Pulley for continuous belt drive - has fixed and axially movable halves with spring opposition
Inventor: MUTHMANN WALTER
IPC: F16H55/56
Filed: 1975-05-02
Abstract: The sleeve (2) of the shaft (1) is connected to two drive pulleys (3, 4) one of which (3) is fixed to the shaft and the other (4) is axially movable. A V-belt runs between the two pulley halves. A boss (5) on the movable pulley half (4) has an annular groove (7) accommodating a helical spring (9), the other end of which rests against a circular groove (8) in the end cap (6). A bearing roller (13) with one rounded end sits in an axial groove (12) of the shaft sleeve (2) and its other flat end rests against the end cap (6). Alternatively, both pulley halves may be axially movable and spring-biased towards each other.
Patent DE-2524313-A1 (DE)
Title: Wire attachment for vine shoots - has frame consisting of two vertical pipes, binder twine holder and rotating belts and can be pushed by tractor
Inventor: RUEHLING WERNER DR
IPC: A01G17/08
Filed: 1975-06-02
Abstract: The implement is preferably attached to the front of a tractor and operated by a double-acting hydraulic cylinder. The frame consists of two vertical pipes which can pass over the vine-wires, vertically-placed, rotating belts pick up the vine-shoots hanging-down on both sides of the vine-rows. The belts are driven by hydraulic motors. The angle of aperture between the belts is adjustable by means of clamps on the frame. On each side of the frame is a twine-holder with a central outlet. After passing through the twine-holders, the twine, made of paper, sisal or synthetic material, passes through adjustable brakes then through a tube. Two guide-tubes are fixed on the implement frame. The twine is placed in hooks on the vine-posts. A valve with feeler controls the raising of the hydraulic cylinders.
Patent DE-2524592-A1 (DE)
Title: Telescopic spring shock absorber for washing machine - allowing piston to transmit uniform specific pressure and conduct heat away
Inventor: GRONBACH WILHELM
IPC: F16F7/09
Filed: 1975-06-03
Abstract: Shock absorber for washing machine comprises a cylinder, a longitudinally displaceable Al piston with a piston rod, and a compression spring supported between the piston and a closure member of the cylinder. The piston acts as a frictional and guide member. In the outer surface of the piston are formed blade-like grooves on which is disposed a friction coating. The piston may be in the form of a longitudinally slotted pipe which is guided on a cup spring in the region of each of its end faces. The friction coating is pref. made from polyester fleece, which has no gas inclusions cf. conventional friction coating made of foamed polyester. The rating of each shock absorber can be adjusted by tightening a nut on the end of the piston rod. This allows individual components to be mfd. with greater tolerances.
Patent DE-2527054-A1 (DE)
Title: Advancing roof supports alongside mine conveyor - are in pairs with spacer system between pairs at ground level
Inventor: MOELLEN CHRISTOPH
IPC: E21D23/04
Filed: 1975-06-18
Abstract: The advancing roof support system behind a face conveyor has pairs of sledges (3) which can be advanced alternately with adjacent pairs (5) towards the conveyor. From the sides of these sledges project brackets (32, 36, 39, 40) which slide along a guide beam (14) between, thus maintaining the sledges a constant distance apart during advance. These brackets consist of flat plates each with a rectangular cut-out at one end, for the beam (14) and which bolt onto clamp members which are secured to the sides of the sledges. The plates (32, 36) nearest to the conveyor have deep cut-outs to give a clearance for the beam. The beam carries a stop member at each end.
Patent DE-2528882-A1 (DE)
Title: Printed circuit board produced using mask - which leaves copper ringed places where holes are to be drilled
Inventor: SANDRIK JOSEF DIPL ING
IPC: H05K3/06
Filed: 1975-06-25
Abstract: The printed circuit board is made more cheaply and with less equipment than is used with existing processes. The board, however, has the same quality. The photographic or screen printing mask is designed so that free areas result after the coppering process at those places where the circuit board is required to have holes. Conducting paths are produced around the copper-free places. The holes are drilled or punched through the board by an automatic process. The mask is aligned precisely with the board by pins that link holes in both mask and board.
Patent DE-2529627-A1 (DE)
Title: Weighing device for kitchen wall mounting - has semi-circular scale indicator and forked bracket to support bowl
IPC: G01G21/22
Filed: 1975-07-03
Abstract: The kitchen wall weigher has a carrier for a removable pan, the pan consisting of a bowl-shaped utensil (16) with an extended rim (17), which fits into a forked shape support (31) forming part of the weigher. The forked shaped support may fold up when not in use, leaving the scale open to view. The pan may be used as a kitchen bowl or other utensil after removal from the scale. The carrier arm fixed member is secured within the housing member which is attached to the wall.
Patent DE-2536960-A1 (DE)
Title: Fuse fitting for vehicle electrical system - has fuse housing carried in wiring connections and housed in steering column switch
Inventor: MUTSCHLER ERICH
IPC: H01H85/20
Filed: 1975-08-20
Abstract: The cluster of wires is connected with each other by a multi-contact connector plug, with wires interrupted and a fuse (7) inserted. The fuse is fitted between the two ends of resilient holder (12) and accommodated in housing (6) and provided with socket holes (3,13) which take up the respective ends of the wires. One carrying end for the fuse is axially movable by the force of a spring (14) which presses against the fuse (7). The housing consists of a part (4,6) housing the fuses and a part (9) containing the spring loaded fuse carriers (13).
Patent DE-2537109-A1 (DE)
Title: Cable and tube sheathing slitting machine - has toothed transporter chain and intermediate slit cutters
Inventor: SEIBOLD ERNST
IPC: B26D1/03
Filed: 1975-08-20
Abstract: The machine for slitting cables, tubes and hoses is used to remove sheathing on long slender components during scrap metal recovery. It separates insulation from electrical and telephone cables or from heating system conduit. The machine accommodates long slender members with different diameter. Cutting is facilitated by notches produced by distorting cross section. The cable is held on two opposite sides by toothed chains. Cutters are provided on the sides between the transporter chains. An arrangement adjusts the distance between the chains and the spacing of the cutters. The cutter is always positioned at mid distance between the opposite chains.
Patent DE-2539500-A1 (DE)
Title: Filtration of dust from gases with acidic components - e.g. waste gas from cupolas, or contg. sulphur dioxide, hydrogen sulphide, fluorine etc.
Inventor: HOELTER HEINZ
IPC: B01D53/50
Filed: 1975-09-05
Abstract: Hot waste gas is cooled by water sprays to a temp above the dew point in a first stage and treated with finely ground alkaline earth (dolemite) dust in a second stage. The primarily agglomerated dust is pref. sepd. in a coarse separator. A second addn. of dust is pref. made in the high velocity region after the coarse separator and as a result, an absorbent and adsorbent protective layer of dust is built up on the fine filter. The filter is protected from overheating and corrosion and the SO2 is removed without wet scrubbing. The resultant dust is easily pelletised and therefore easily disposed of.
Patent DE-2541167-A1 (DE)
Title: Expansion compensating pedestal for vertical rotor machine - is rotationally symmetrical array of oblique leaf springs
Inventor: STARCEVIC MIHAILO DIPL ING
IPC: B23Q1/36
Filed: 1975-09-16
Abstract: The pedestal supports a vertical axis machine on a foundation, and consists of an array of rotationally symmetrical leaf springs. These are free to expand at high temperature to avoid thermal stressing of both the housing and the foundation. The leaf springs (3) lie in planes (5) tangential to a virtual cylinder (4) which is coaxial with the rotor axis. The vertical transverse section through each leaf spring is I-shaped. The central virtual cylinder has a smaller radius than that of the median radius of the ring of leaf springs. When the machine housing expands, the perpendicular force components in the plane of each leaf spring and normal to the plane remain in proportion, and the stability is maintained, even for eccentric loading or asymmetrical expansion.
Patent DE-2545221-A1 (DE)
Title: Antimony trioxide recovery from spent halide catalysts - by acid extn., redn., pptn. with water then ammonia treatment
Inventor: HERTWIG ASKAN DR
IPC: C01G30/00
Filed: 1975-10-09
Abstract: Processing of spent Sb halide catalyst masses to Sb2O3 comprises first extracting Sb cpds. with HCl from the organic components, then filtering the sepd. aq. phase with addition of active charcoal. The filtrate is then reduced with SO2, Sb, Fe or Zn to convert Sb5+ to Sb3+, and filtered with addition of Zn powder and charcoal. All the Sb values in the soln. are then pptd. as SbOCl in the presence of N2H4, NaHSO3 or ascorbic acid by adding water contg. a complexing agent (I). The SbOCl is then washed with water, treated with NH3 in the presence of (I) and the resulting Sb2O3 washed and dried. The catalysts are used to make fluorinated hydrocarbons (by Cl exchange with HF). They are simply and economically worked up to pure, white Sb2O3 of commercial quality.
Patent DE-2547145-A1 (DE)
Title: Concrete sheathing wall construction form spacer - has plastic dowel plug retainer and large headed hand turned screw
IPC: E04B1/76
Filed: 1975-10-21
Abstract: Two components used for erection of concrete sheathing walls, for construction work above or below ground. These are a spacer dowel plug connecting retainer and a screw connector. The dowel is an injected plastic unit and serves to hold panels or form sheaths at an interval. The retainers are inserted at regular vertical intervals between the inner and outer wall shells. The screw connectors are screws, approx. 8 cm long and of 3-4 mm diam)ter, with a steep coarse thread, pinted for easy insertion and centering in the dowel plug hole. The head is a plate approx 100 mm across made of injected plastic and permits the screw to be turned in or out by hand.
Patent DE-2547583-A1 (DE)
Title: Digital weighing machine using resonating wire transducer - has weight lever balanced so that force in wire affects its resonants frequency
Inventor: HOFMANN DIETER DR PHIL
IPC: G01G3/16
Filed: 1975-10-24
Abstract: An accurate digital output weighing machine depends on a resonating wire and frequency measurement technique. A weight (3) is mounted on a main lever area (2) and fulcrum (4) against which a weight (G) is balanced with an auxiliary force derived from a wire (1) mounted below the lever (2). End stops (7, 8) prevent an excursion beyond limits accurately defined by adjustable weights (9, 10) at both ends of the main lever arm (2). The force in the wire (1) affects its resonant frequency, which is excited by a magnet (5) and amplifier (6). This is detected and measured by a network (12) incorporating a non-linear conversion function and then digitally displayed (13). The behaviour of the wire, typically of gold plated invar, is examined for various conditions with the help of detailed model equations.
Patent DE-2553481-A1 (DE)
Title: Tube making plant - comprising an unrolling device, a feed coil, a profiling unit and a fastening unit (BR310876)
Inventor: LIPP XAVER
IPC: B21C37/12
Filed: 1975-11-28
Abstract: Device for making a tube from strip steel coiled on a feed reel which is mounted together with a profiding unit and a fastening unit and a guide for the strip located between the feed rooler and the profiling unit on a common frame, the two units presenting a working path disposed concentrically to the tube being produced and corresp. respectively to the curvation of the wall of the tube, is characterised in that the frame is in the form of an elongated horizontal mandrel at one end of which the feed reel is arranged on edges while the strip can be guided about the axis of the mandrel. The device operates on a horizontal axis rather than a vertical one and may be used either fixed or movably during tube mfr.
Patent DE-2553614-A1 (DE)
Title: Liquid cooled resistor with tubular housing - has coil shaped cooling channel in space between element and wall
Inventor: LENSING BERNHARD DIPL PHYS
IPC: H01C1/082
Filed: 1975-11-28
Abstract: The liquid cooled resistor consists of a resistance element mounted in a tubular housing with a cooling channel for conveying the cooling medium. The resistance element is electrically insulated from the housing but in thermal contact with it. The housing is made from a heat conducting material. The cooling channel is coil shaped around the resistance element. The coil shaped cooling channel (4) consists of a tube (c) with the material of the housing (2) moulded around it. The tube can be made of steel or copper and the housing can be made of aluminium. The resistance element (1) is wire wound inside the housing and the space between the element and the housing is used for the cooling channel.
Patent DE-2558935-A1 (DE)
Title: Fluid flowmeter using differential pressure tube - has swinging shutter with curved attachments to achieve linear transfer characteristic
Inventor: FRANETZKI MANFRED DIPL PHYS DR
IPC: A61B5/087
Filed: 1975-12-29
Abstract: The fluid flowmeter operates on the differential pressure principle, the rate of flow being directly proportional to the pressure difference. The flowmeter tube is divided across its rectangular bore by a split screen (4)(4'), the upper and lower halves being separated by a narrow slit. the upper, longer part of the screen is attached to the upper wall of the tube (5) and is able to swing forwards and backwards thus varying the size of the slot opening. Attached to each side of the swinging plate are curved grids or wire mesh screens (7)(7') which form inherently-stable roll-off surfaces. These reduce the effective length of the plate during an increase in pressure and improve the stiffness of the plate. The pressure difference between both faces of the plate is transferred via vents connected to a differential pressure apparatus (6)(6').
Patent DE-2601840-A1 (DE)
Title: Press. to electrical signal transducer - uses movable lens containing transparent medium covered by membrane receiving press. to alter focal length
Inventor: STELTER KORD
IPC: G01L9/00
Filed: 1976-01-20
Abstract: A transducer for conversion of small pressures or press. variations into analogue electrical signals is suitable for the measurement of air press., sound press., and gas volume variations, and for use in press, responsive alarm units. The measurement principle involves the displacement of fluids and transparent media in the beam of an intensity measurement arrangement using cohesion, adhesion, and gravitational forces. The arrangement contains a light source, a biconvex lens, a movable plane convex lens, a fixed plane convex lens, an aperture and a reciever. The movable lens contains the transparent medium covered by a membrane. The press. on the membrane alters the lens focal length.
Patent DE-2601977-A1 (DE)
Title: Castor mounting assembly with tubular member - having lateral bore for pin providing swivel axis of castor
Inventor: TRUSLOVE ROBERT CYRIL
IPC: B60B33/00
Filed: 1976-01-20
Abstract: The castor and a frame or stand comprises a tubular member, in which a plug is located in one end of the tubular member and is formed with a lateral bore, the tube having a hole aligned with the bore, and the castor having a pin providing a swivel axis of the castor and which passes through the hole and into the bore and is retained therein frictional engagement with the bore.
Patent DE-2611601-A1 (DE)
Title: Fungicidal (2)-chloro-nicotinic acid anilides - prepd. from (2)-chloro-nicotinic acid halide and a (3)-substd. aniline
Inventor: ZEEH BERND DIPL CHEM DR
IPC: C07D213/82
Filed: 1976-03-19
Abstract: Nicotinic acid anilides of formula (I) and their acid addn salts are new. In the formula, R is 3-5C alkyl, alkenyl or alkynyl or is a chloroallyl gp. and n is 0 or 1. Typical cpd. is 2-chloronicotinic acid -3'-propylanilide. (I) and their acid addn. salts are fungicides and are esp. effective against Basidomycetes e.g. Rhizotonia, Coniophora, Tilletia and against ascomycetes e.g. Erysiphe. Cpds. are used at 0.2-5, pref. 0.5-2, kg per hectare.
Patent DE-2611753-A1 (DE)
Title: Tube drawing machine applying torque - has drawing head with clamp connected to carriage and rotating as carriage moves
Inventor: SASIMKO VIKTOR AFANASJEVITSCH
IPC: B21C3/14
Filed: 1976-03-19
Abstract: Tubes are manufactured by drawing, the product being deformed during drawing by the die, and simultaneously being subjected to a torque. The torque is applied to the part (1a) of the product (1) emerging from the drawing die (2) while a turning of the part (1b) of the product before the die is prevented. The drawing appliance consists of a bed, a tension ring with a drawing die, and a drive carriage to draw the product. The carriage (8) has a grab unit (13), and an appliance to apply a torque, the tow being in kinematic connection. The grab unit is positioned for a co-axial turning movement, with another unit being located so as to prevent a turning movement this being positioned in front of the inlet to the nozzle.
Patent DE-2616974-A1 (DE)
Title: Lorry mounted hydraulic loading crane - has interlock to stop slewing motion when jib enters sector in which controls in use are situated
Inventor: LINDQVIST JONAS
IPC: B66C23/94
Filed: 1976-04-17
Abstract: The accessory is partic. for lorry mounted hydraulic loading cranes, having at each side of the lorry near the slewing column control levers to operate the slewing and derricking valves. An interlock mechanism stops the slewing motion whenever the jib enters a predetermined sector (23) of the slewing circle (24), in which the control levers being used are situated. This mechanism allows slewing to continue when controlled by levers on the opposite side of the vehicle (1). There can be two cams in diametrally opposite positions and at different heights on the column, acting against shoes on a lever coupled to the slewing control levers on opposite sides of the lorry.
Patent DE-2618039-A1 (DE)
Title: Jig for mfg. elements for door or window frames - where two metal profiles are bonded to foamed plastic insulation
Inventor: BISCHLIPP KLAUS
IPC: B29C44/12
Filed: 1976-04-24
Abstract: The gap between the two profiles is closed by flexible rails to form a closed casting chamber; and the flexible rails can be moved towards or away from each other to open or close the chamber. Each of the flexible rails is fitted with a detachable sepg. rail made of harder material than the flexible rails; and each sepg. rail can move transversely w.r.t. the flexible rails. The casting chamber is filled with a hardenable mass forming the thermal insulation. The flexible rails are pref. provided with longitudinal groove in which a web on the sepg. rails is a snap fit; and the convex surface of the sepg. rails is used to form the closed casting chamber. The sepg. rails do not bond to the hardenable mass, which is foamed plastic; the result is that the foamed plastic has a smooth surface suitable e.g. for lacquering.
Patent DE-2618643-A1 (DE)
Title: Plastics mass mixing and dispensing appts. - has outlet of cylindrical vessel provided with reciprocable metering piston actuated by concentric piston rod
Inventor: HUEBERS GERD-JAN
IPC: B01F15/00
Filed: 1976-04-28
Abstract: Appts. is provided at its outlet end with a metering pump whose piston is actuated by a piston rod disposed concentrically within a tubular member. Appts. includes a vertical cylindrical vessel in which is disposed concentrically the tubular member which is journalled for rotation by gears, whereby the tubular member may be provided with external or internal mixing vanes, or be devoid of vanes or the vanes may be provided on the piston rod. Alternatively the tubular member which is provided with de-gassing means may be stationary and a further concentric tubular member enclosed in the tubular member and is arranged for rotation by the gears. Pref. the piston rod is mounted for rectilinear, reciprocating movement only. The piston rod may be provided with a valve. Used for dispensing metered quantities of plastics mass composed of a quick setting resin enriched with fillers. Homogeneously mixed batch can be dispensed in accurately metered quantities.