baber/WOPTO huggingface dataset:
Patent GB-1527954-A (GB)
Title: Electromechanical filters
IPC: H04R17/08
Filed: 1976-12-07
Abstract: 1527954 Electromechanical filters SIEMENS AG 7 Dec 1976 [26 Feb 1976] 50874/76 Heading H3U In an electromechanical filter comprising at least one bending resonator and a torsion resonator mutually coupled by a mechanical coupling element, at least one further mechanical coupling element is coupled to the torsion resonator to produce an attenuation pole. As shown, bending resonators 1-3, 5-7 and torsion resonator 4 are coupled by a wire 8 which oscillates longitudinally. Additional wires 9, 10 connected to resonator 4 produce attenuation poles in the transmission characteristic of the filter. In the embodiment of Fig. 2 (not shown) the torsion resonator has two constrictions, and the coupling elements are all connected to the centres of the resonators, wire 8 being located on the opposite side to wires 9, 10. The torsion resonator may have flats and may have support elements in addition to the coupling elements; also it may be longer than the bending resonators.
Patent GB-1408766-A (GB)
Title: Polyphenylene ether-containing resinous compositions
IPC: C08L51/04
Filed: 1972-11-06
Abstract: 1408766 Polyphenylene ether compositions MITSUBISHI GAS CHEMICAL CO Inc 6 Nov 1972 [5 Nov 1971] 51122/72 Headings C3R C3P and C3G A thermoplastic composition comprises a blend of (a) a poly-(2,6-dialkyl-1,4-phenylene)- ether wherein the alkyl groups are methyl or ethyl groups, (b) a styrene rubber composed of units derived from styrene and units derived from a conjugated diene compound, the units derived from styrene being present in an amount of from 40 to 60% by weight, and (c) a rubbermodified chlorostyrene polymer composed of units derived from a conjugated diene compound and units derived from chlorostyrene, the units derived from the conjugated diene being present in an amount of from 2 to 15% by weight, the weight proportion of these components being 40 to 60% of (a), 5 to 30% of (b) and 20 to 50% of (c). The composition may contain thermal stabilizers, plasticizers and flame retardants. In examples, components (a) are poly-(2,6- dimethyl-1,4-phenylene)ether and poly-(2,6-diethyl-1,4 phenylene)ether; components (b) are blends of polybutadiene and polystyrene, an isoprene-styrene copolymer, a blend of a styrene-butadiene block copolymer and polystyrene and a rubber obtained by graftpolymerizing a polybutadiene latex and styrene; components (c) are a polymer obtained by the bulk polymerization of chlorostyrene in the presence of polybutadiene, polymers obtained by polymerizing chlorostyrene and styrene in the presence of polybutadiene and a blend of an isoprene-isobutylene copolymer with polychlorostyrene; other ingredients used in the compositions are 2-mercaptobenzothiazole zinc salt, decabromobiphenyl, titanium dioxide, pentabromotoluene, poly - (2,2 - diphenylpropane)- carbonate, an aromatic polyamide resin, pentabromophenol and antimony trioxide.
Patent GB-1122836-A (GB)
Title: Mounting for light automatic weapons
IPC: F41A23/00
Filed: 1966-11-15
Abstract: 1,122,836. Weapon mountings. RHEINMETALL G.m.b.H. 15 Nov., 1966 [8 Sept., 1966], No. 51180/66. Heading F3C. A mounting for a light automatic weapon, e.g. a machine gun 2, comprises an upper part 17 having a receiving piece 1 upon which the weapon 2 is located and being mounted on a lower part 20 of the mounting for movement in elevation. The receiving piece 1 is mounted on a spindle 14, arranged parallel to the axis of the bore of the weapon barrel, in the upper part of the mounting in such a manner that it can cant about, and is recoil movable along, the axis of the spindle. The locking means on the receiving piece 1 comprises a projection 5 arranged on a lug 13 and co-operating with a recess 3 in the weapon casing 2a, a claw 6 engaging a mounting support 4 of the weapon and a spring loaded locking latch 7 restoring relative movement between the claw 6 and support 4. The weapon is de-mounted by depressing the locking latch 7 against its spring loading and moving the weapon forwardly of the mounting, the support 4 sliding over the depressed locking latch. The receiving piece 1 is mounted for rotation on the spindle 14, a coil spring 18 being interposed between the receiving piece 1 and a side 16 of a U-sectioned member of the upper part 17, on which member is mounted the spindle, to take up recoil of the weapon. The upper part 17 is mounted on the lower part 20 by means of a pair of diverging arms 19 (Fig. 2 not shown). The lower part 20 is mounted on a one-legged support 22 to be rotatable through 360‹ and the support 22 is arranged to be vertically adjustable. The mounting may be incorporated in a vehicle (Fig. 5, not shown).
Patent GB-1245631-A (GB)
Title: Device for transferring flat objects of general rectangular shape from one lineal conveyor to a second one
IPC: B65G47/29
Filed: 1968-10-29
Abstract: 1,245,631. Endless conveyers. SAPAL SOC. ANON. DES PLIEUSES AUTOMATIQUES. 29 Oct., 1968 [10 Nov., 1967], No. 51313/68. Heading B8A. Rectangular articles arranged in spaced disposition on an endless conveyer belt 1 with their short sides parallel to the direction of travel are stopped by a removable stop 12 to form article abutting groups 14 prior to release for delivery to a pair of spaced endless belts 17. Disposed below the conveying surfaces of the belts 17 is a plate 19 pivotable about one edge to raise the articles from the belts 17, and allow them to slide downwardly thereon on to a further endless conveyer belt 10 transverse of the conveyer belt 1 such that the long edges of the articles are parallel to the new direction of travel. In an alternative embodiment, Fig. 4 (not shown), the plates (19) deliver the articles to a curved conveyer (24) feeding a further endless conveyer (10b) extending parallel to the first conveyer (la).
Patent GB-1138089-A (GB)
Title: Automatic film loading device
IPC: G11B15/34
Filed: 1966-11-16
Abstract: 1,138,089. Feeding webs. HOKUSHIN ELECTRIC WORKS Ltd. 16 Nov., 1966 [26 Nov., 1965; 14 May, 1966], No. 51343/66. Heading B6B. [Also in Divisions G2 and G5] An automatic film, tape, or web threading device comprises two endless rubber belts forming a closed circuit including the film threading path, in a projector for example, the belts 27 being interconnected over part of their length by a leading plate (26), Fig. 2 (not shown), which grips the film end so that, when the belts are driven, the film is drawn through the projector. The film may be manually inserted into and removed from the plate (26), or in an automatic form, camming blocks (56, 57), Fig. 16 (not shown), raise the rubber film-gripping flanges of a flexible leading portion (52) formed integrally with endless belts (51) while film is fed through the channel (61). Rollers (71, 72) guide the belts, while horizontal rollers (62, 64, 66) guide the raised flanges. The belts are pressed against rollers (71, 72) by two narrow rollers (69), the blocks (56, 57) being pivoted at (73) by spring (110). A similar camming block and roller system opens the flanges of the portion (52) and removes the film after threading is completed. Belts 27 are pressed against driving rollers (40, 41), Fig. 1 (not shown), for frictional drive, or perforated belts and sprockets may be used. Rollers (40, 41) are coaxial with a smaller radius roller (9) which receives the threaded film and a similar double roller or sprocket mounting is provided throughout the film path.
Patent GB-1489348-A (GB)
Title: Apparatus for dispensing animal foodstuffs
IPC: A01K39/01
Filed: 1975-03-03
Abstract: 1489348 Dispensing animal food VIKSAL DEVELOPMENTS Ltd 3 March 1975 [22 Feb 1975] 51376/76 Divided out of 1489347 Heading AIM Apparatus for dispensing animal food uniformly along the length of a trough is the same as that described in Parent Specification but the claims are particularly concerned with baffle plates 21, 22 which ensure an even feed flow from a hopper 16 into a receiver 11.
Patent GB-1134111-A (GB)
Title: Improvements in and relating to catalysts
Inventor: BOND GEOFFREY COLIN
IPC: B01J23/89
Filed: 1965-12-03
Abstract: 1,134,111. Hydrogenation process. JOHNSON, MATTHEY & CO. Ltd. 30 Nov., 1966 [3 Dec., 1965], No. 51403/65. Heading C2C. [Also in Divisions B1 and C5] Nitrobenzene and 2-methylbut-3-yn-2-ol are hydrogenated in the presence of a catalyst comprising mixed oxides of Pt or Pd on Fe, Co, Ni or Cu, which is other than a mere physical admixture. Hydrogenation is effected at room temperature, atmospheric pressure and in methanolic solution.
Patent GB-1015408-A (GB)
Title: Resinous compositions
IPC: C08L77/00
Filed: 1963-12-31
Abstract: A composition comprises 65 to 95 parts by weight of a polyamide having the recurring group <FORM:1015408/C3/1> where R1 is a C2-C16 alkylene radical and R2 is hydrogen, a C1-C2 alkyl radical or a halogen, said polyamide having a molecular weight of 1,000 to 35,000, and correspondingly 35 to 5 parts by weight of a polyepoxide having at least two epoxy groups per molecule. Specified polyamides are those derived from alkylene diamines having 2 to 16 carbon atoms e.g. hexamethylene, tetramethylene, decamethylene, undecamethylene, dodecamethylene, hexadecamethylene and ethylene diamine and isophthalic, 5-1-butyl isophthalic, 5-chloro-isophthalic, methyl isophthalic, propyl isophthalic, isopropyl isophthalic, hexyl isophthalic or 5-fluoro-isophthalic acid.  Specified polyepoxides are the reaction products of polyhydric alcohols or phenols e.g. glycols, glycerol, trimethylol propane, bis-phenol-A and polyphenols with epihalohydrins.  The two polymers may be blended together in a polyamide solvent e.g. dimethylacetamide or dimethyl formamide or the dry powders may be mixed together optionally in the presence of a solvent for the polyepoxide e.g. acetone, methyl ethyl ketone, toluene, trichlorethylene or perchloroethylene. The resins react on the application of heat.
Patent GB-1134818-A (GB)
Title: Improvements on warp knitting machines
Inventor: CAUGHEY ALAN WILLIAM
IPC: D04B35/10
Filed: 1966-11-17
Abstract: 1,134,818. Knitting - machines. PLATT KNITTING MACHINERY Ltd. 16 Nov., 1967 [17 Nov., 1966], No. 51577/66. Heading D1C [Also in Division G1] In a method of measuring the amount of yarn used while knitting a predetermined number of courses on a warp machine, a recording medium and a marker are moved relative to one another at a speed proportional to the yarn feed speed, and the marker caused to make a mark at predetermined intervals. In one embodiment a roller pressed against the warp beam carries a paper disc on one face. The paper is marked by a pointer actuated by a solenoid which is energised when a microswitch is moved by a Bowden cable into the path of a timing chain. In modifications the recording medium may be borne by a carrier geared to the roller, the roller is entrained by a yarn.
Patent GB-1240574-A (GB)
Title: A magnetically levitated transport system
Inventor: WIPF STEFAN LORENZ
IPC: H02N15/02
Filed: 1969-10-21
Abstract: 1,240,574. Magnetic transport system. NORTH AMERICAN ROCKWELL CORP. 21 Oct., 1969 [25 Oct., 1968], No. 51606/69. Heading B7L. In a magnetically levitated transport system, a vehicle, for example a rocket 34, is coupled to a superconducting magnetic coil 32 by means of structural mounts 36 and 38, and when the coil 32 moves with velocity v relative to a track consisting of longitudinally extending channelshaped non-ferromagnetic members 40 and 42, the coil 32 induces eddy currents in the members 40 and 42 such that a vehicle platform 30 of the vehicle 34 is levitated and guided by repulsive magnetic forces between the vehicle 34 and the members 40 and 42. If the coil 32 moves towards the members 40 and 42 in any direction the magnetic repulsive force increases so that the vehicle 34 is stabilized by the magnetic suspension system. Auxiliary wheels (not shown) may be necessary for starting and stopping the platform 30 since the coil 32 carried by the platform 30 requires a predetermined velocity v to induce eddy currents in the members 40 and 42 which currents are of sufficient magnitude to develop a repulsive force which is able to levitate the platform 30. In a further embodiment sown in Fig. 6, the track consists of generally L-shaped non-ferromagnetic conductor members 50 and 52 which are spaced apart to form a slot 54. Legs 56 of members 50 and 52 intersect a plane passing through a magnetic coil 60 and perpendicular to plane of the figure. Still further track arrangements are shown in Figs. 8 and 9 (not shown) in which lateral stabilization is effected by members (86) and (88) spaced from the central conductor (84) or by a ridge extending from the central conductor.
Patent GB-1479043-A (GB)
Title: Apparatus for burning refuse
IPC: F23G5/00
Filed: 1974-11-29
Abstract: 1479043 Incinerators JOSEF MARTIN FEUERUNGSBAU GmbH 29 Nov 1974 [30 Nov 1973] 51695/74 Heading F4B Refuse is crushed at 5, the coarser fraction is delivered by a shoot 8 and a ram 11 to a grate 25, and the finer material passes through a screen 6 and is delivered pneumatically to an auxiliary combustion chamber 16, where incombustible particles are separated out to fall on to the grate 25. The crushed refuse is delivered axially or tangentially to the combustion chamber 16, which has a tangential combustion air supply 20. The chamber 16 is formed with a lower slit 19 through which unburnt material falls to the grate 25, Fig. 3, the gases passing through an axial outlet 23 to the upper part of the main combustion chamber 24. Material in the grate 25 is burnt with undergrate air and secondary air delivered at 29, the gases passing up the combustion chamber 24 to the radiation chamber 31 and downpass of a boiler. Secondary air is delivered at 30 above the level of the outlet 23 from combustion chamber 16, which may have watercooled walls. The auxiliary combustion chamber may be arranged as a cyclone having a vertical axis (Fig. 4) or the unburnt material from the auxiliary combustion chamber may fall to a separate grate with an undergrate air supply, which serves to convey this material to the main grate (Fig. 6). Several auxiliary combustion chambers may deliver into the main combustion chamber, and may be arranged along the front wall, on the front and back walls, or at the corners of the main combustion chamber. Sewage sludge or liquid industrial waste may be fed axially or tangentially into the auxiliary combustion chamber, or may be supplied to the duct leading from the crusher.
Patent GB-1123869-A (GB)
Title: Improvements in or relating to seamed footwear
Inventor: BERNIER LOUIS E
IPC: A43B23/02
Filed: 1966-11-18
Abstract: 1,123,869. Boots &c. E. T. WRIGHT & CO. Inc. 18 Nov., 1966, No. 51803/66. Addition to 983,536. Heading A3B. [Also in division D1  The simulated seam of the parent Specification is modified by allowing the chain of stitches on the inside of the upper to penetrate through to the opposite surface so that the cross stitch components 14 are visible on the grain side of the upper.
Patent GB-1049480-A (GB)
Title: Process for treating a raw copper phthalocyanin
IPC: C09B67/00
Filed: 1964-12-18
Abstract: Copper phthalocyanine is purified by (a) treating with a hot detergent solution, e.g. a 2% solution of alkyl aryl sulphonates at 98 DEG  to 100 DEG  C., (b) filtering the mass and then washing the mass with dilute sulphuric acid, e.g. 5% strength.  Preferably, the detergent solution to pigment weight ratio is 4 to 1.
Patent GB-1328818-A (GB)
Title: Needle bearings
IPC: F16C21/00
Filed: 1970-11-02
Abstract: 1328818 Bearings NADELLA and A PITNER 2 Nov 1970 [16 Feb 1970] 51961/70 Heading F2A A radial needle bearing comprises an outer race 2 with a cylindrical portion and a radial end portion connected by a rounded junction, a cage 3, and a washer 8 disposed radially within the edge of the cage and having a diameter greater than that of the inner race surface 10. The washer axially positions the race 2 and shaft 4. The shaft may be provided with an inner race, and may extend through the washer and an aperture in the end portion 7 of the outer race. Alternatively the washer may have an axially extending portion received in a recess in the end of the shaft, or the end opening of an inner race.
Patent GB-1136778-A (GB)
Title: Return springs for linear measuring instruments
IPC: G01B3/10
Filed: 1966-11-22
Abstract: 1,136,778. Springs. QUENOT & CIE S.A.R.L. 22 Nov., 1966 [8 Sept., 1966], No. 52321/66. Heading F2S. [Also in Division G1] In a linear measuring instrument comprising a measuring tape and a casing, not shown, a spring for automatically returning the measuring tape into the casing is preferably cut from a strip, e.g. of hardened steel, is preformed with a curved cross-section, and is spirally coiled so that the initial concavity of the spring faces towards the exterior of the spiral to give the spring a greater tendency to take up its extended position. The return torque increases as the initial cross-curvature is made more pronounced.
Patent GB-1397402-A (GB)
Title: Fixing means
IPC: A47B91/06
Filed: 1971-06-18
Abstract: 1397402 Furniture frames and joints VONO Ltd 17 May 1972 [18 June 1971] 52339/74 Divided out of 1397401 Heading A4H [Also in Division F2] The description is identical to that of the Parent Specification 1397401 but the claims are directed to the fixing means.
Patent GB-1215760-A (GB)
Title: Hydro-pneumatic pumping apparatus
IPC: F01L25/06
Filed: 1968-11-05
Abstract: 1,215,760. Reciprocating pumps and motors. MATAIRCO S.A. Nov.5, 1968 [July 26, 1968], No.52397/68. Headings F1A and F1M. A pump piston 1 is intergal with a motor piston 19 and is reciprocated by alternately connecting, via a gas distributer, the motor chamber 24 with compressed air from a feed orifice 62 and exhaust through a chamber 63 and silemer 64, while constantly supplying the annular chamber 25 with compressed air from feed orifice 26, the chamber 22 being permanently connected to exhaust through air orifice 23. The gas distributer is controlled by the piston 19 at its end positions, by abutment of a sleeve 29 with a ring 68 and a shoulder 69 on a control rod 28 which carries a spring-loaded valve 48 and is formed with a valve 45 moving within a slide valve 32. The air passages through the distributer are such that, at the beginning of the suction stroke Fig. 1, the valve 45 is seated by air supplied to chamber 54 via passages 35a, 35b, 43 and the valve 48 is unseated thereby opening chamber 24 to exhaust via the silencer 64. The piston ascends due to pressure in annular chamber 25 until the sleeve 29 abuts the ring 68 to move the control rod 28 upwards to unseat the valve 45 thus opening the chamber 54 to exhaust via passage 44. The slide valve 32 then ascends due to air supplied to annular chamber 36 and the chamber 24 is filled with compressed air, Fig.2 (not shown), via passage 35a, chamber 37, and passage 35c, the valve 48 following the slide valve 32 and becoming seated under the action of its spring. The piston 19 then descends on the delivery stroke until once again the valve 48 is lifted off its seat to allow exhaustion of chamber 24 and the cycle is repeated.
Patent GB-1094420-A (GB)
Title: Gas filter
IPC: B03C3/30
Filed: 1965-12-10
Abstract: 1,094,420. Electrostatic separators. E.I. DU PONT DE NEMOURS & CO. Dec. 10, 1965 [Dec. 11, 1964], No. 52538/65. Heading B2J. [Also in Division B5] A gas filter for removing fine particles suspended in a gaseous stream comprises a gas pervious, loosely packed mass of filamentary elements consisting of a first group of filamentary elements having a high net negative electrostatic charge density and a second group of triboelectrically different filamentary elements having a high net positive electrostatic charge density, the individual filamentary elements of the first group 'being generally in close proximity to individual filamentary elements of the second group. An ion trap may be provided upstream of the mass of filamentary elements for preventing gas ions in the gaseous stream from reaching the filamentary elements and reducing the charges thereof. An air filter unit adapted to be inserted in an air duct for ventilation purposes, Fig. 4, comprises a casing 1 made of plastic or sheet metal, an air prefilter 2, an ion trap 4, a filter cartridge 4 having a folded filter mat made of electrostatically charged fibres and a power supply 5. The prefilter 2, the ion trap 3 and the filter cartridge 4 are slidably mounted in the casing and may each be removed for replacement after removal of a side plate 8. The ion trap 3 consists of galvanised wire screens 13, 14, 15 separated from each other by electrically insulating plastic screens 16, 17, all the screens being held at their periphery in a moulded frame 23 of nylon. The screen 14 is insulated from the screens 13, 15 which are grounded and is charged with d.c. from supply 5. The filter cartridge is made of a carded matt of electrostatically charged synthetic fibres. Electrostatic charging of the fibres may be accomplished by cutting multifilament yarns into staple lengths and opening up the yarn staple which is converted to a matt of intimately mixed and differently charged fibres by five passes into a carding machine in which the device normally used to remove static charge from the carded product is omitted. The batt is then secured to a plastic backing screen 18 either by adhesive or by a process of lamination. A strip of the backed matt is cut to dimensions folded and cemented in an open frame 19 of cardboard. The power supply 5 may include a rectifier for supplying d.c. to the prefilter or it may be in the form of a dry cell. A slightly different filter unit is described with reference to Figs. 1 and 2 (not shown). Other methods of making the matt for the cartridge 4 are described. The filamentary elements may consist of fibres of a given chemical composition mixed with triboelectrically different fibres of a different chemical composition. Alternatively fibres having coatings of different triboelectrical and chemical compositions may be used. Examples of groups of fibres include those made from polyoxymethylene resin (+) and polypropylene (-); polyoxymethylene resin (+) and bleached P.T.F.E. (-); polyoxymethylene resin (+) and P.V.C. (-). Results of experiments are discussed.
Patent GB-1323780-A (GB)
Title: Fluid supply and control sub-system
IPC: F04C29/00
Filed: 1971-11-16
Abstract: 1323780 Rotary positive - displacement compressors INGERSOLL-RAND CO 16 Nov 1971 [11 Feb 1971] 53162/71 Heading F1F During normal operation of a compressor 12 pressure-operated valves 28, 30 are open and closed, respectively, so that oil 20 in a receiver 14 returns to the compressor through a line'22, a mixture of compressed-air and oil flows through a line 16 and check valve 18 and compressed air issues through a line 25. When the compressor is shut down the pressure reduction in a line 34 opens the valve 30, which then allows air to escape from the receiver to the atmosphere through an orifice 36. The consequent increase of pressure in a line 32 closes the valve 28, thus preventing the oil 20 escaping through the compressor. The valve 28 comprises piston 48 which when moved to the position shown in phantom lines against the action of a compression spring 50 by the pressure in the line 32 transmitted through a port 52 prevents the oil flowing between ports 42, 44 past a check-valve element 58. Leakage oil and air escape through a port 62.