baber/WOPTO huggingface dataset:
Patent FI-990204-A (FI)
Inventor: BLOMQVIST GUNNAR
IPC: B29C65/78
Filed: 1999-02-03
Abstract: This invention relates to a method for joining thermoplastic pipes (1) made by spiral winding a hollow profile (2) with mainly rectangular cross section. The method is characterized by the following stages: cutting the profile (2) in the end of the pipe along the inside of the side wall that is fastened to the nearest preceding wound round and with a cut (3) cutting the end of the profile in a right or obtuse angle ( alpha ), of equal size for all pipe ends to be joined together; closing the hole in the cut ends (3) of the profile, and preparing the end surfaces of the pipes along their entire peripheries; positioning two pipes (1) aligned to each other so that the cut profile ends (3) are axially offset; inserting a welding ring (5), matching with the inner and outer diameters of the pipes, between the two pipes (1); which welding ring comprises at least one loop of resistance of wire (8) covered by a thermoplastic sleeve (7); aligning the two pipes (1) with an inner root support (8) and an outer root support (9) around the seam with the welding ring (5); pressing the pipe ends together against each other; connecting the resistance wire (6) of the welding ring to a current source (12) to heat the thermoplastic material in the welding ring (5) and in the pipe ends so that the thermoplastic material melts down and forms a welding seam, cooling the welding seam; removing the root supports (8, 9) and other accessories (10, 11) from the pipe welded together, and cutting off the connecting wires (13) of the welding ring.
Patent GB-534195-A (GB)
Title: Improvements relating to road or railway vehicles
IPC: B60P1/02
Filed: 1940-01-17
Abstract: 534,195. Vehicle fittings for loading &c. GOMPERTZ, P. C. Jan. 17, 1940, No. 1026. [Class 78(iv)] [Also in Group XXXII] Vehicles having an underframe sprung on the axles and a body adapted to rest directly on the underframe in the lowered position, are fitted with simultaneously operated jacks at the corners of the body for raising it from the underframe to load or unload at various levels. In the form shown in Fig. 2 four screw jacks are operated from the engine of the vehicle. Each jack comprises a vertical screw 10 rotated by worm gear 12 carried by four linked shafts 24 driven from the gear-box when the hand-operated clutch 22 is engaged, and acting to traverse nuts secured to the body which overlies a low underslung frame so as to be below the level of the rear axles in the lowest position. In a modification the nuts are rotated and the screws moved axially. The jacks may be hydraulic or pneumatic and may be hand-operated.
Patent GB-442693-A (GB)
Title: Improvements in or relating to processes and devices for tempering glass
IPC: C03B27/052
Filed: 1935-01-11
Abstract: 442,693. Tempering glass. ASSUREX LE ROI DES VERRES DE SECURITE MAGNIEN, MONNIER, & CIE, 231, Rue du Faubourg, St. Martin, France. Jan. 11, 1935, No. 1070. Convention date, Jan. 16, 1934. [Class 56] Sheets of glass are tempered by means of a number of air jets arranged at the apices of a series of equilateral triangles, the jets being moved relatively to the glass in such a manner, e.g., by rotation in circles of radius equal to the sides of the triangles that a network of coiled lines is produced on the glass having the form of a number of equilateral triangles equal to the aforesaid triangles. The air jets are preferably arranged on both faces of the glass in such a manner that the jets on one side are situated opposite the centres of the triangular groups of jets on the other side. The most suitable length l of the sides of the triangles depends on the thickness of the glass and it is stated that for thicknesses of 4, 6, and 10 m.m. lengths l of the order of 50, 60 and 80 m.m. respectively are desirable, but these are variable according to the intensity of blowing. British Specifications 361,277, 385,843 and U.S.A. Specification 1,960,222, are referred to.
Patent GB-1281562-A (GB)
Title: Improvements in or relating to the manufacture of clay pipe junctions
Inventor: SHEPHERD ROBERT VINCENT
IPC: F16L41/02
Filed: 1969-01-08
Abstract: 1281562 Moulding pipe junctions ELLISTOWN PIPES Ltd 7 Jan 1970 [8 Jan 1969] 1088/69 Heading B5A [Also in Division F2] An extruded clay pipe junction comprises a circular section main branch 17, which may be straight, as shown, or may comprise a bend or trap, and a branch integrally moulded thereto and terminating at a widened end opening 18 comprising two U-shaped end faces in planes intersecting at an angle corresponding to that of the junction. The junction may comprise a symmetrical Y, or an asymmetrical Y as in Fig. 6, or a T. The widened end opening may be socketed for directly cementing therein of connecting pipe ends (when the socket interior, Fig. 5 (not shown), is bevelled (at 23) for packing of the cement), or for location of one or more socket and/or sealing members provided with pipe end locating circular openings, and which pipe ends or members may be supported across the opening by a bridge member 25 having concave sides 27 corresponding to the pipe end. The socket and/or sealing members may be secured in the opening by adhesive, or may be cast therein from polyester or polyurethane and provided with an interior groove for location of a sealing ring. The end of the main branch 17 may be incorporated in a sleeved joint with a plain ended pipe, or may be provided with a polyester resin covering 28 and a sealing ring 29 for sealing in a polyester resin lined socket. The pipe junction is extruded from a die outlet 2 into a cavity 5A, 5B comprising the limbs of the branch, and defined between hingedly openable exterior mould parts 6A, 6B, and an interior mould part 8A, 8B mounted on a vertically reciprocable table, simultaneous filling of the different sized asymmetrical branches 5A, 5B being ensured by a flow deflector plate 11 pivotable, by a handle 15, on shafts 13. After removing the outer mould part 6A, 6B, the table 7 is lowered during further extension to form the main branch 17, the plate 11 being manipulated to produce the required straight, bent, or trap configuration thereof, whereafter the extrudate is severed at the die face and the table 7 further lowered for removal of the junction from the mould parts 8A, 8B. The socket bevel (23) may be formed after extrusion.
Patent GB-639994-A (GB)
Title: Improvements in or relating to range-finders or telemeters of the short home-base coincidence type coupled with photographic or kinematograph camera objectives
IPC: G03B13/20
Filed: 1947-01-13
Abstract: 639,994. Rangefinders combined with photographic cameras. OPTIQUE ET PRECISION DE LEVALLOIS. Jan. 13, 1947, No. 1169. Convention date, May 29, 1942. [Classes 97 (i) and 98 (i)] In a short home base rangefinder of the coincidence type coupled with the view-taking objective of a photographic or kinematographic camera, wherein by means of two negative objectives 4, 5, the two beams 1, 2 form virtual images at the same distance from an eyepiece 9, the parallax-correcting member is a thick glass block 6 with parallel entrant and emergent faces inserted in the path of the indirect beam between the objective 5 in the path of that beam and the eyepiece, and is adapted to rotate on an axis perpendicular to the plane containing the beams 1, 2 and in a plane parallel to and equi. distant from the said faces of the block. Preferably a framing gate is disposed in the path of at least one beam to outline the field of the view-taking objective and framing gates may be included in both beams, one gate 12 being smaller than the other 11 so that the field of one is contained within the other. The smaller frame 12 may define the field of view for an objective of greater focal length than that for which the frame 11 is intended. A crank 15 secured to a pin 14 on the axis of the block 6 carries a roller 16 which engages the end of the focussing sleeve 18 of the view-taking objective.
Patent GB-620277-A (GB)
Title: Improvements in bag-making apparatus
IPC: B31B23/00
Filed: 1947-01-14
Abstract: 620,277. Bag making. ROSE, A. G., GILBERT, J. A., and ROSE BROS. (GAINSBOROUGH), Ltd. Jan. 14, 1947, No. 1301. [Class 94(ii)] In a bag-making machine wherein a web 11 of paper, film or foil is made into ia tube around a former 12 the tube is cut up into bag lengths, and one end turned up and sealed, while the tube is still mounted on the former. The Figure shows a machine using heat-sealing for the tubular seam and the bag bottom turn-up. The web 11, of heat-sealing material, is formed into a tube around the former 12, using rollers 13 and a guide 16, the tubular seam is sealed by a heated roll 17, which is pressed against the tube only while the latter moves downwards when pulled off: the former by grippers 42. Heated sealing members 22, 23 reciprocate in slides 27, 28, nip and seal the end of the tube between them and the tube is severed by a pair of knives 31, 32. The member 23 then retracts but the member 22 moves further forward to carry a folding recess 33 into alignment with the end of the former 12, such action causing the sealed portion of the tube to bend over to the right. The member 22 then pivots upwards about the axis of a shaft 34 to fold upwards the bag end which is sealed to the bag by a heated member 37, the end of the former being supported by a member 41. The end of the former is cut away to allow the grippers 42 to seize the tube end to draw it off the former downwards a distance equal to one bag length. The bags are held by members 43, mounted on a continuous chain 44 and led to a filling and sealing device.
Patent GB-1162771-A (GB)
Title: 3,3-Di-Arylhetero-Dialkylaminophthalides and the use thereof in Pressure-Sensitive Recording Materials
IPC: C09B11/26
Filed: 1968-01-10
Abstract: 1,162,771. 3,3-Diarylhetero-dialkylaminophthalides. NATIONAL CASH REGISTER CO. 10 Jan., 1968 [30 Jan., 1967], No. 1387/68. Heading C2C. [Also in Division D2] The invention comprises compounds of the formula wherein the rings are selected from R 1 , R 2  and R 3  being hydrogen or C 1-5  alkyl or aryl radicals, and Y and Z are hydrogen or a di(C 1-5 -alkyl) amino radical, one of Y and Z being hydrogen and the other a dialkylamino group. The compounds are prepared by reacting the appropriate indole or carbazole with a 4-dialkylaminophthalic anhydride in the presence of a metal halide of the Lewis acid type and an organic solvent to obtain a 3-(2-carboxy- 4 or 5-dialkylamino-benzoyl)-indole or carbazole and reacting this product with the required indole or carbazole in the presence of an acidic condensing agent, e.g., acetic anhydride, H 2 SO 4  or ZnCl 2 . The phthalides are colourless or slightly coloured compounds, which assume a darkly coloured state in contact with an acidic material, and are used in pressure-sensitive recording material (see Division D2).
Patent GB-431704-A (GB)
Title: Manufacture of dressed textile materials
IPC: D06M15/347
Filed: 1934-01-15
Abstract: The resistance to creasing of textile materials is improved by treatment with an aqueous solution containing a "highly polymeric compound" and an aldehyde and subsequent heating to a temperature of 70--150 DEG  C.  The term "highly polymeric compound" is defined as referring to a product obtainable by polymerization of a mono- or polyhydric alcohol or a derivative thereof or by the condensation of such a polymeric product with another organic compound.  Suitable compounds are polyvinyl alcohol, polyglycerin and their esters and ethers, and mixed products, e.g. from vinyl butyl ether and acrylic acid, vinyl acetate and maleic acid, acrylic acid methyl ester and vinyl acetate, styrol and maleic acid.  Suitable aldehydes are formaldehyde and its polymers and polyvalent aldehydes such as glyoxal.  Examples describe the treatment of textiles with products from (1) polyvinyl alcohol and formaldehyde; (2) polyglycerin and acetaldehyde; (3) a polyether (hydroxyethylated polyvinyl alcohol) and paraformaldehyde; (4) a fatty acid ester of polyvinyl alcohol and formaldehyde; (5) the ammonium salt of a mixed polymerization product from vinyl butyl ether and maleic acid and paraformaldehyde; (6) the ammonium salt of a mixed polymerization product from styrol and maleic acid and glyoxal; (7) an alkali salt of the mixed product from acrylic acid methyl ester and vinyl acetate; (8) the ammonium salt of the polymerization product from mixed vinyl acetate and maleic anhydride and formaldehyde.
Patent GB-312679-A (GB)
Title: Fuel-supply process and device for internal combustion engines
IPC: F02B41/06
Filed: 1929-01-15
Abstract: 312,679. Rochefort, F. May 31, 1928. [Convention date]. Cylinders receiving liquid fuel. - In a multi. cylinder engine a rich mixture is injected into air in a power cylinder after the air admission ports are closed; this charge is then compressed and before ignition a part of it is delivered into a reservoir common to all the cylinders, this rejected charge being afterwards enriched to form the rich mixture for another cylinder. The reservoir e is kept hot by lagging or by heating either by electric heater or by a jacket through which a portion of the engine exhaust flows. It is in permanent connection with mixing chambers c, two for each injection device. These chambers are formed in an annular piston valve d controlling the flow of liquid fuel under pressure from an annular groove l<2>. When fuel is to be supplied to the mixture, the valve d lifts slightly and the fuel flows through the grooves l<3>, Fig. 2, to the chambers c. Assuming that the air admission ports in a cylinder are closed after the exhaust period is finished, and the piston is on the up-strolie, the beat valve s is opened by the cam k<2>. The rich mixture formed in the chambers c flows through the helical passages v<1> formed in a guide piston and through Venturi passages b in a piston valve v<2> into the cylinder, the pressure therein during the early part of the stroke being low. As the piston rises the pressure in the cylinder increases; just before ignition and after the piston valve v<2> has been opened by the cams k<1> a part of the cylinder charge is returned to the chambers c and thence to the reservoir. Immediately after, the beat valve s closes and ignition then takes place; the piston valve closes after the beat valve. The returned charge is then used to form the rich mixture in another cylinder. The valve body p is made of metal of high heat conductivity and is insulated by a gasket a<1> from the cooled cylinder top. In place of returning a part of the charge to the reservoir by means of the admission valve s, a separate delivery valve may be used. Rotary valves may be used instead of the valves shown. A special mixture of readily ignitable fuel may be added to the charge in the reservoir by an independent compressor and alcohol, petroleum, gas oil, and vegetable oils may be used as the main fuel. Specification 22,177 is referred to. The two valves open to allow easy flow of the returned charge from the cylinder.
Patent GB-1372925-A (GB)
Title: Thermoplastics moulding method and apparatus
IPC: B29C49/48
Filed: 1972-01-12
Abstract: 1372925 Injection blow moulding METAL BOX CO Ltd 14 Dec 1972 [12 Jan 1972] 1465/72 Heading B5A Articles are injection blow moulded in an apparatus (Figs. 15, 19) comprising a turret 1 having at least one core 4, 5 extending from each of two mutually perpendicular faces and being angularly reciprocable through 90 degrees for alternate engagement of the cores with an injecton mould 7 by movement of the turret to and from the injection mould, and a blow mould 9, 10 on each side of the turret 1 movable to and from the turret to engage whichever core 5 is not engaged with the injection mould, for blow moulding the parison 8 previously injection moulded on to that core while the next parison is injection moulded on to the other core 4. Thermoplastics material is injected by a piston from a chamber 13, Fig. 2, previously filled by a screw in tube 12. The turret 1 is rotated by rams 24, 25 (Fig. 4, not shown) and mounted in a carriage 15, Fig. 5, sliding on guide rods 16. Carriage 15 is connected by a flexible coupling 18 to a clamping member 19 operated by an electrically driven plunger 20. The clamping member has a concave face 22 bearing against a complementary face 23 of the turret 1 to permit turret rotation. Blow moulds 9, 10 are attached to plates 38, 39 pivoted at their lower ends to mould carriages 28, 29 movable on guide rails 30, 31 by rams 32, 33. Rams 34, 35 hold the moulds against the turret during moulding and afterwards rotate the moulds against springs (41) to face downwardly for ejection on to a delivery conveyer. The cores have passages through which compressed air is blown for blow moulding and suction is applied for removing the parisons 8 from the injection mould 7, and passage for heating oil and cooling water. Suction is applied through blow moulds 9, 10 to remove the finished article from cores 4, 5.
Patent GB-494324-A (GB)
Title: Improvements in or relating to electron discharge device amplifiers for use at very high frequencies
IPC: H01J25/68
Filed: 1937-01-18
Abstract: 494,324. Thermionic valves ; valve amplifying circuits. SIEMENS & HALSKE AKT.-GES. Jan. 18, 1937, No. 1500. Void. Convention date, Jan. 18, 1936. [Classes 39 (i) and 40 (v)] In an amplifying valve working at wave-lengths of 1 metre or less, the dimensions are so chosen that the transit time from grid to anode is not greater than that from cathode to grid, the latter time being not substantially more than “ of the period of the signal. At the same time, arrangements are made to neutralize the short-circuiting effects of anode-grid capacity. As shown, an inductance J and condenser C are connected between the grid and the anode and are such that with the grid-anode capacity they constitute a parallel tuned circuit resonant at the frequency to be amplified. The inductance J and capacity C may be replaced by a number of inductances and capacities in series or by a Lecher wire system. These elements may be within the valve envelope. Alternatively, the anode and grid leads themselves form Lecher wires with the filament leads which extend from both ends of the tube ; in addition a four-pole compensating network of unspecified nature may be connected between the input and output lines.
Patent GB-1046832-A (GB)
Title: Magnetic separator
IPC: B03C1/03
Filed: 1964-01-14
Abstract: 1,046,832. Magnetic separators. CARPCO RESEARCH & ENGINEERING, Inc. Jan. 14, 1964 [Jan. 2, 1964], No. 1539/64. Heading B2J. A magnetic separator for working up ores of weakly magnetic materials such as molybdenum or tungsten ores comprises one or more magnets 2, Figs. 1 and 2 producing fields between opposite poles 5, 6 integral with the magnets, a movable container 19 which is packed with induced polepieces 25 retained therein by at least one foraminous wall 22, means 23 for moving the container and induced polepieces relatively to the field poles so that they pass into and out of the effective magnetic fields and means, such as nozzles 28, for contacting the material to be separated with the induced polepieces in the magnetic fields. The induced polepieces, which may be in the form of plates, grooved plates, helical rods, cubes, spheres or deformed metallic screens, are retained in an annular container 19 which is provided with top and bottom screens 26, 22 and driven by a motor 23 so as to pass between adjustably-mounted poles 5, 6 of two magnets which may be permanent magnets, or electromagnets as shown. The material to be separated is fed as a slurry through the nozzles 28 and wash water supplied through nozzles 29 into the magnetic field where the magnetic particles are retained on the induced polepieces 25 and the non- magnetic particles fall through with the water into a launder. When the induced polepieces leave the magnetic fields, the weakly magnetic particles fall into launders assisted by wash water supplied through nozzles 30. Any ferromagnetic particles remaining on the induced polepieces are removed as the annular container passes through the field of a degaussing unit 31 and a further wash water nozzle 33. In another embodiment, Fig. 8, the induced polepieces are retained in a container 50 which is reciprocated between the field poles 51 and 52 of three electromagnets by a drive assembly 54. Both the feed nozzles 55, 56 and the wash water nozzles 60, 61 are alternately operated as the container is moved to the right and left.
Patent GB-1020878-A (GB)
Title: Outdoor decorative laminate
IPC: B32B27/00
Filed: 1965-01-13
Abstract: A curable polyester resin comprises the reaction product of (A) from 34 to 49 mol. per cent of a cycloaliphatic dihydric alcohol, (B) from 1 to 16 mol. per cent of an asymmetrical, linear, aliphatic dihydric alcohol, (C) from 30 to 49 mol. per cent of fumane and/or itaconic acid and (D) from 1 to 20 mol. per cent of a cycloaliphatic dicarboxylic acid, wherein the total mol. per cent of all the components is 100%.  Specified polyester forming components are: (A) cyclohexanediol-1 : 2, -1 : 3 and -1 : 4, cyclohexanedimethanol-1 : 2, -1 : 3 and -1 : 4, cyclohexanediethanol-1 : 4, isopropylidine bis-(p-hydroxycyclohexane) and hydrogenated bis-phenols; (B) 1 : 3- and 1 : 2-butylene glycol, pentane diol-1 : 2, -1 : 3 and -1 : 4, hexane diol-1 : 3 and -1 : 5 and octane diol-1 : 6 and -2 : 5 and (D) hexahydro-o-, -m- and -p-phthalic acid. The copolyesters are used as adhesives in the preparation of laminates, in admixture with conventional solvents and free-radical producing catalysts and (optionally) styrene, methyl methacrylate, diallyl phthalate, ring substituted alkyl and halostyrenes or triallyl cyanurate.  The Specification also discloses a curable adhesive mixture comprising (A) a reactive, water-insoluble linear copolymer of (1) from 50 to 98% by wt. of amonoethylenically unsaturated hardening comonomer containing no functional groups reactive with component (B), (2) from 50 to 2% by wt. of a monoethylenically unsaturated comonomer containing at least one functional group reactive with component (B), and (3) from 0 to 45% by wt. of a monoethylenically unsaturated softening comonomer containing as functional groups reactive with component (B), wherein the sum of the amounts of (1), (2) and (3) is 100%, and (B) a cross-linking amount of a 3 : 4-epoxycyclohexylmethyl-3 : 4 - epoxycyclohexane carboxylate or hexamethylol melamine.  The copolymers may be made by solution or emulsion polymerization in the presence of conventional solvents and catalysts, specified monomers being: (1) methyl, ethyl, propyl, n-butyl and isobutyl methacrylate and/or styrene, p-methyl styrene, chlorostyrene, acrlonitrile, methacrylonitrile, t-amyl methacrylate, t-butyl acrylate, t-amyl acrylate, benzyl methacrylate and vinyl chloride; (2) acrylic acid, methacrylic acid, ethacrylic acid and a -chloroacrylic acid and (3) methyl, ethyl, propyl, n-butyl, 2-ethylhexyl, octyl and dodecyl acrylate.  The curing of the mixture is effected under heat and pressure.
Patent GB-1171741-A (GB)
Title: Improvements in or relating to Chairs.
IPC: A47C7/46
Filed: 1968-01-10
Abstract: 1,171,741. Seats. FRITZ FLOTOTTO FRIEDRICHSDORFER SCHULMOBELFABRIK UND SAGEWERK. 10 Jan., 1968 [11 Jan., 1967], No. 1542/68. Heading A4J. A unitary moulded plastics seat and back shell, for a school chair, is formed with a rearward bulge 7, to provide support in the forward leaning or writing posture and an inclined upper back part 6, for a rearward leaning posture.