baber/WOPTO huggingface dataset:
Patent GB-554546-A (GB)
Title: Feeding mechanism for sewing machines
IPC: D05B27/02
Filed: 1942-06-20
Abstract: 554,546. Sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). June 20, 1942, No. 8506. [Class 112] In a four-motion feed bar mechanism, the feed-lift crank-pin 45 carries a slide-block 44 working in a curved slot 43 in the end of the feed-bar 40. The curvature of the slot is such that during the actual feeding movement the accelerating downward movement of the pin 45 is compensated by the relatively upward movement of the slotted end of the feed-bar as the horizontal movement of the feed-bar carries the slot over the pin.
Patent GB-915634-A (GB)
Title: Improvements in or relating to ventilators
IPC: F23L17/02
Filed: 1960-03-10
Abstract: 915,634. Ventilators. BREWER, C. E. March 23, 1961 [March 10, 1960], No. 8509/60. Class 137. A roof ventilator comprises a base-plate 10 having a central passage 13, a cowl 15 having perforations 16 situated at a level below that of the upper end of the passage 13 and a manually adjustable damper 18 mounted in the said passage. The damper 18 consists of a rectangular plate bent at each end to form flanges 18a which are secured to pivots 19 mounted in the end walls of the cowl 15, and the angular position of the damper is adjusted by cords 20. The passage 13 is defined by vertical flanges 11 and 12 of the base-plate and the angular movement of the damper 18 is limited by a stopmember 21 which abuts against the flange 12 in the closed position. The base-plate 10 may be shaped appropriately to fit any shaped roof having an aperture corresponding with the cross-section of the passage 13.
Patent GB-967788-A (GB)
Title: High molecular weight, linear polymer products
IPC: C08F210/00
Filed: 1963-03-04
Abstract: High molecular weight linear copolymers of ethylene, and one or more alpha-olefins of the formula R-CH=CH2, in which R is an alkyl group containing from 1 to 6 carbon atoms, and an olefin containing an inner double bond of the general formula: R1-CH=CH-R11 in which R1 and R11 are the same or different alkyl, aryl, or alkylaryl groups, are made by copolymerizing the monomers in the presence of a transition metal compound of Group IV, V, or VI of the Mendel<\>aeef Periodic Table, and an organometallic compound of a metal of Group 1(A), II, or III(A), of which at least either the transition and/or the organo-metallic compound is halogenated.  The alpha-olefin may be propylene, butene-1, 3-methyl-butene-1, pentene-1, 4 methyl-pentene-1, and hexene-1. Specified olefins containing an inner double bond are butene-2 pentene-2, hexene-2, heptene-2, 2-methyl-heptene-3, 2,7-dimethyloctene-4, propenyl-benzene, and 5-phenyl-pentene-2.  Mixtures of cis and trans isomers or the individual isomers may be used. The preferred catalyst systems are prepared from VCl4, or VOCl3 and aluminium trialkyls, or vanadium triacetyl acetonate and dialkyl aluminium monohalides.  Instead of vanadium and vanadium chloroacetylacetonates may be triacetylacetonate, vanadium diacetylacetonates used.  The polmerization is generally effected in an inert diluent.  The copolymers may be separated into amorphous and crystalline fraction by solvent extraction methods. Specification 932,658 is referred to.
Patent GB-326357-A (GB)
Title: Improvements in or relating to the valve gear of internal combustion engines
IPC: F01L1/12
Filed: 1929-03-18
Abstract: 326,357. Lund, A. J., and Beechey, E. W. March 18, 1929. Valve gear.-The valves are opened by a spring S<2> surrounding the stem and closed by a cam, eccentric, &c. C acting through a lever L and a wire, tape, &c. W having an interposed spring A, which is stronger than the spring S<2>. The wire W may pass over pulleys G or over levers.
Patent GB-552522-A (GB)
Title: Improvements in and relating to the casting of metals
IPC: B22D7/08
Filed: 1942-06-24
Abstract: 552,522. Casting processes ; moulds. TELICHOWSKI, T. June 24, 1942, No. 8656. [Class 83 (i)] Molten metal is poured intc a divided mould in which it is chilled progressively from the bottom to the top. Each mould half comprises an end member 15, a side plate 14, and cover 16 secured to the plate 14 to form a water or fluid-containing jacket. The plate is insulated from the cover at 18 and supported by projections 29. One mould half is fixed to the base 11 and hinged to the other at 12. After pouring, cooling-liquid is admitted by a valve and pipes 22, Fig. 3, to longitudinally slotted pipes 23 containing each a float 28 to ensure that the incoming liquid enters the jacket space above the liquid therein. The liquid is exhausted by adjustable valves and pipes 24, overflow pipes 30 being provided.
Patent GB-369395-A (GB)
Title: Method and machine for the manufacture of brick-and-iron lathing
IPC: B28B23/00
Filed: 1931-03-20
Abstract: 369,395. Looms combined with moulding machines. LUCA, C. F. W., 50, Lansinkweg, and NAAMLOOZE VENNOOTSCHAP NEDERLANDSCHE STEENGAASFABRIEK, both in Hengelo, Holland. March 20, 1931, No. 8657. [Classes 142 (ii) and 142 (iv).] Lathing of the kind consisting of a wire netting with pellets of clay secured thereon is formed by weaving the netting on a loom shown diagrammatically in the left-hand portion of Fig. 1, then passing the woven netting 10 with a layer of clay 18 between moulding and finishing rollers 14, 15, 25, 27. The warp wires 3 are guided and stretched by rollers 5, 4 and the shuttle mechanism 8 may be of the kind described in Specification 312,597, [Class 142 (iii), Looms, Weft supplying &c. in] ; the weft wires are spaced by a reciprocating cam 9. The netting 10 is passed over guide rollers 11, 12, 13 and between the rollers 14, 15 which are heated and shape the clay stream into pellets at the crossing points of the wires, as shown in Fig. 2, and are resiliently pressed together by a spring 23. The upper roller 15 is oiled by a roller 19 running in an oil bath 20. Rollers 24, 25 next form the slits 26 separating the pellets, and a cylinder 27 punches out excess clay and shapes the openings 29. The pellets are then smoothed by a brush 30, and the lathing is wound on a cylinder 31 and is afterwards baked.
Patent GB-1151801-A (GB)
Title: Valve Mechanism for Hydraulic Systems.
Inventor: IGNATOV VIKTOR NIKIFOROVICH
IPC: F16K15/18
Filed: 1967-02-23
Abstract: 1,151,801. Valves. PODMOSKOVNY GOSUDARSTVENNY PROEKTNOKONSTRUKTORSKY I EXPERIMENTALNY INSTITUT GORNOGO MASHINOSTROENIA. 23 Feb., 1967, No. 8705/67. Heading F2V. A valve for operating an hydraulic jack, e.g. a mine roof support, comprises a plunger 3 sealed to a housing bore by an elastic sealing ring 2. A second sealing ring 11 seals the plunger in a spring-biased bush 8. On supplying pressure fluid to a chamber 4, the plunger moves out of the bore into the bush 8 whereby the ring 2 is protected, the plunger first lifting a spring- biased pin 14 and then lifting the bush from a seating round the bore. The fluid passes to the prop through chambers 4 and 6 and the prop is extended. To collapse the prop, the pressure fluid is supplied through a piston chamber 17 having an outlet (not shown) to the upper end of the prop. This pressure reopens the valve through the piston 7 engaging a tail end of the plunger, and the lower end of the prop is exhausted by reverse flow through the chambers 6-4. A relief valve (21), Fig. 2 (not shown), may be connected between the chambers 5, 6. Piston 7 may be actuated manually.
Patent GB-1394027-A (GB)
Title: Self-locking fastener
IPC: F16B39/282
Filed: 1973-02-22
Abstract: 1394027 Lock nuts and bolts STANDARD PRESSED STEEL CO 22 Feb 1973 [22 Feb 1972] 8710/73 Heading F2H A self-locking nut or the head of a self-locking bolt has on its bearing face an array of substantially radial teeth 20 of saw-tooth crosssection the crests 22 of which are radiused or formed as flats 30 to limit penetration of the teeth into a workpiece when the nut or bolt is engaged with the workpiece. The crests 22 of the teeth may define a radial plane or a frustoconical surface. The teeth may be surrounded by a smooth annular rim 18 which engages the surface of the workpiece to contain stress concentrations caused by the action of the teeth 20 within its circle. The rim 18 may form a continuation of the surface defined by the tooth crests (Figs. 4, 6, 8, 10, not shown) or may be slightly inclined to that surface (Figs. 7, 11, not shown) or may be convexly curved in radial section, being tangential to the crests of the teeth where it meets them (Figs. 5, 9, not shown). The roots 24 of the teeth may be linear or curved when viewed in radial section. Reference has been directed by the Comptroller to Specifications 1,268,862 and 1,326,380.
Patent GB-116704-A (GB)
Title: Improvements in Variable Speed Gears.
Inventor: JEAN MARIE GLOPPE
IPC: F16H29/14
Filed: 1918-05-28
Abstract: 116,704. Gloppe, J. M. May 26, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Variable-speed epicyclic and ratchet gearing.- In gearing for automobiles &c., planet pinions d', d<2> d<3>, d<4>, gearing with a sun-wheel e on a driven shaft f, are mounted on free-wheel ratchet clutches g<1>, g<2>, g<3>, g4 carried by pins c<1>, c<2>, c<3>, c<4> on a carrier b attached to the driving-shaft a. The clutches carry driving-rollers i<1>, i<2>, i<3>, i<4> which work in an annular grooved track in a plate j adapted to be set in a concentric position, or various eccentric positions, by a screw l. When the track is concentric, no drive is transmitted, and when it is eccentric, the ratchet clutches receive from the grooved track an oscillatory motion, depending on its eccentricity, which they successively transmit in one direction only to the corresponding planet pinions, causing them to drive continuously the shaft f at a speed depending on the eccentricity of the track. In a modification, the pinions d<1> - - d4 are carried by the inner wall of the fixed casing k, and the grooved track is caused to revolve with the driving-shaft.
Patent GB-231878-A (GB)
Title: Improvements in or relating to electric heat accumulators
Filed: 1925-04-02
Abstract: 231,878. Sacerdote, S. April 2, 1924, [Convention date]. Heat-storing apparatus.-An electric heat-accumulator A for a cooking stove has one or more parts B capable of being raised to a higher temperature than the main body by bringing into circuit a supplementary resistance R<2> arranged in the said part or parts. The part B may be separate from the main body and of different composition, mechanism for varying the distance between them being provided. By this means the reciprocal heat transmission between them may be varied. The accumulator is surrounded by an insulating casing G and is heated by a resistance R<1>. Bv means of a switch U either of the resistances may be energized.
Patent GB-1119756-A (GB)
Title: A hydraulically driven submersible pump
IPC: A01K79/00
Filed: 1967-02-24
Abstract: 1,119,756. Centrifugal pumps. MARINE CONSTRUCTION & DESIGN CO. Feb. 24, 1967 [Aug. 11, 1966], No. 8927/67. Heading F1C. [Also in Division B8] In a submersible pump for liquids or liquids containing solids, e. g. fish, the liquid is delivered from an inlet 14 through impeller 41 and on annular passage 21 to an outlet, 15 without any abrupt changes in flow direction. The impeller blades 41a are curved circumferentially. The impeller is driven by a hydraulic motor 3 contained in a hollow inner casing 2 connected to the outer casing 1 by upstream portions 20<SP>a</SP> of flow-straightening vanes 20, 20a. The motor driving liquid is delivered through a conduit 31 and is exhausted into the casing 2 for cooling by the pumped liquid, whereafter it flows through a passage 20<SP>1</SP>a in one of the vane portions 20 to an outlet hose 32a. Due to the pressure of the exhausted driving liquid, leakage of pumped liquid into casing 2 is prevented. The exhausted driving liquid instead leaks to the main flow via bearing 40 and seal 40a thereby lubricating the bearing. The casing 1 is in three parts 10, 11, 12 bolted together at 13, 13a, the impeller being removable after removal of lower part 11. An annular rubber bumer 12a prevents damage of the pump by impact. An inlet screen 50 prevents the entry of large fish into the pump. The pump is suspended by a cable attached to a bridle B connected to diametrically-opposed lugs 19 on the casing 1.
Patent GB-743421-A (GB)
Title: Wall hydrant
Inventor: BAKER ALBERT ALLEN
IPC: E03B9/02
Filed: 1953-03-31
Abstract: 743,421. Hydrants; valves. ZURN MANUFACTURING CO., J. A. March 31, 1953, No. 8953/53. Classes 69 (1) and 135. A wall hydrant comprises a casing 1, a unitary head 4 connected to one end of the casing and extending through the outer wall 20 of a building, means, e.g. a lock-nut 12 for securing the unitary head in the wall, a valve housing 36 at the other end of the casing, a conicalshaped valve head 29 operated by a rod 27 and carrying a cup-shaped washer 30, and means carried by the unitary head to actuate the rod 27. In the form shown the unitary head has an outlet spout 6 and the valve rod 27 carries a sleeve 24 internally threaded at 23. The rod is moved longitudinally by rotating a key 19 which fits into a recess 18 in a bearing member 14 which has an externally threaded portion 21 which engages the threaded part of the sleeve 24. The upper part of this sleeve is flattened to prevent its rotation. A second conical head 44a may be fitted to the valve.
Patent GB-1367098-A (GB)
Title: Treatment of pigments
Inventor: HINLEY J J
IPC: C09C1/36
Filed: 1971-04-07
Abstract: 1367098 Pelletizing pigments BRITISH TITAN Ltd 21 March 1972 [7 April 1971 7 Dec 1971] 9035/71 and 56718/71 Headings C1N and C1A A pigment is pelleted by passing it through a sieve of B.S.S. mesh number 5-44 (3À36-0À35 mm.), and then dry trundling. The bulk density of the pigment should be at least 34 g./ml. before sieving; if the bulk density is lower, e.g. in a pigment obtained directly from a fluid energy mill, it may be increased by storage in a bunker with a vibratory collar. The sieve may be shaken mechanically and pressure may be applied during sieving. Pelleting may be effected in a cylindrical rotating drum, preferably continuously fed with pigment from a vibratory feeder. The preferred pigment is TiO2 which may be coated with hydrous oxides of Al, Ti, Ce, Zr, and Si, e.g. Si + Al, before sieving, and may also be coated with triethanolamine, pentaerythritol or trimethylol propane. Other pigments mentioned are ochre, ZnO, and Al2O3.
Patent GB-497527-A (GB)
Title: Improvements connected with beer pumps
IPC: F04B9/14
Filed: 1938-03-24
Abstract: 497,527. Beer engines. HEATH, Ltd., W, E., and LAWRENCE, J. E. March 24, 1938, No. 9037. [Class 102 (i)] In a beer pump the outlet 9 is carried by the cover 15, and the rod 4 is attached to a spider 14 in the piston, thus permitting the whole length of the cylinder to be swept by the piston. The cover carries a long stuffing- box acting as a guide, and the rod is attached to the piston by a joint permitting alignment, e.g. as described in Specification 438,821. The cover is secured to the barrel by a screw ring 18, in order that the outlet may be arranged as required. A swan neck 11, carried by a bracket 12 on the counter 13, is connected to the pump outlet by a straight pipe 10. The bucket-valve 5 and the suction-valve 6 are guided by depending legs 16, 17.
Patent GB-232945-A (GB)
Title: An improved thimble for jointing plain ended pipes
IPC: F16L13/11
Filed: 1925-04-07
Abstract: 232,945. Bolland, E. April 22, 1924, [Convention date]. Void [Pubished under Sect. 91 of the Act]. Spigot-and-socket joints held by cement and the like ; junction pieces. - A thimble A for use in jointing plain ended pipes E has a central ring or flange D which corresponds in depth to the thickness of the pipes to be jointed, and is shaped at B to accommodate a jointing compound. In a modification the ring D is tapered in section to form an abutment for pipes mating, at an angle, as is the case when pipes are laid to conform to a given curve. The thimble A is self-centering and may be square or other shape to co-operate with square pipes &c.
Patent GB-1102405-A (GB)
Title: Resin compositions
Inventor: MARKLOW RAYMOND JOSEPH
IPC: C08G63/42
Filed: 1964-03-04
Abstract: Polyester resins are prepared by heating together as sole reactants a dicarboxylic acid, a glycol, and an epoxide-ended reaction product of epichlorhydrin or dichlorhydrin and a polyhydric phenol which amounts to 0.1 to 10 weight per cent of the total polyester forming material. The acid and glycol usually amount to 20-70 weight per cent each of the total; the product preferably has a hydroxyl value of 30-500 mg KOH/gm. and a viscosity of 20-400 poises.  Suitable dicarboxylic acids include adipic (preferred), succinic, glutaric, azelaic, sebacic, maleic, fumaric, phthalic, isophthalic, terephthalic, hydrogenated phthalic and diglycollic acid or mixtures of these. Suitable glycols include ethylene, propylene, tri-, tetra-, penta- and hexamethylene and neopentyl glycols, 1:2-, 1:3- and 2:3-butylene glycols, 1:2-, 1:3- and 1:4-cyclohexane diols, and di-, tri- and poly-ethylene and -propylene glycols and polystyrene oxide. Suitable phenols include resorcinol, phloroglucinol, 4:41-dihidroxydiphenyl, 4:41 - dihydroxydiphenyl - sulphone, -ether, or -propane, 3:5:31:51-tetrabromo - 4:41 - dihydroxydiphenylpropane and phenol/aldehyde or phenol/ketone condensates. In Examples adipic acid and diethylene glycol are condensed with condensates of epichlorhydrin (or dichlorhydrin) with bisphenol A containing 1, 3 or 8 residues of the bisphenol.  Uses:-polyols for polyurethane foam preparation, hydraulic fluids, plasticizers.
Patent GB-1390595-A (GB)
Title: Lightweight decorative facing sheet material and method and composition for its preparation
IPC: C04B28/32
Filed: 1973-02-26
Abstract: 1390595 Magnesia cement mortar J DANIELIS 26 Feb 1973 9317/73 Heading C3N A composition for making thin lightweight decorative facing sheet material comprises a mouldable paste of magnesium oxychloride, an inert finely divided filler consisting essentially of 2/3 to 1 volume of dry vegetable materials in particulate or fibrous form and 0 to 1/3 volume of perlite in particulate or flake form, to a total of 1 volume and a pigment selected from metallic oxide pigments and carbon black, the magnesium oxychloride being the reaction product of magnesium chloride and calcined magnesite in a water medium in which the magnesium chloride prior to reaction was present in an amount relative to the calcined magnesite, calculated on a substantially dry weight basis, 70-100%, the pigment being present in an amount relative to the dry calcined magnesite component of the magnesium oxychloride calculated on a substantially dry weight basis, and the filler being present in an amount of 150-250% relative to the calcined magnesite component of the magnesium oxychloride calculated on a substantially dry volume basis. The pigment may be iron oxide, zinc oxide or titanium oxide, and the vegetable material is preferably wood flour which may have a particle size of 60-100 U.S. mesh. Other vegetable fillers are hemp, ramie and sisal. The composition may be formed into a thin lightweight uniformly coloured decorative facing sheet material having a thickness of 1/8-1/2 inch.
Patent GB-1384503-A (GB)
Title: Disc brakes particularly for motor vehicles
IPC: F16D65/097
Filed: 1973-02-26
Abstract: 1384503 Mounting spot-type disc brake pads SOC ANON FRANCAISE DU FERODO 26 Feb 1973, [10 March 1972] 9318/73 Heading F2E  A disc brake comprises a rotatable disc 13, Fig. 1, a fixed support 10 facing it, and a brake shoe arranged at each side of the disc, at least one of the shoes, e.g. 17, being mounted for sliding movement towards and away from the disc in an aperture 16, Fig. 2, formed in support 10, the latter shoe having a lateral tongue 24 protruding from the central zone of each of a first pair of opposed sides parallel to the centre line of the brake shoe passing through the disc  axis; complementary recesses 25 are provided in opposed edges of the apertures for receiving the tongues, the free ends of the tongues, however, being spaced from the corresponding edges of the recesses; the tongues in co-operation with the recesses prevent radial displacement of the brake shoe, while the parts of the sides beyond the tongues co-operate with the corresponding edges of the apertures to prevent circumferential displacement of the shoe. Preferably the shoe is urged radially outwards by a spring 22. The support 10 may alternatively be of inverted U-shape, in which case the above construction may be provided at both sides of the disc.
Patent GB-1054192-A (GB)
IPC: G06K13/26
Filed: 1964-03-05
Abstract: 1,054,192. Sheet folding and delivering apparatus. ENGLISH ELECTRIC - LEOMARCONI COMPUTERS Ltd. March 5, 1965 [March 5, 1964; March 9, 1964], Nos. 9433/64 and 9929/64. Heading B6H. Apparatus for re-folding of a zig-zag folded tape 25 delivered from a tape reader unit 7 comprises driven rollers 24 feeding the tape between a stationary guide 22 to a further guide 14 from which the issuing zig-zag folded tape is re-folded on the platform 16 of a transparent receiver 17. The receiver is mounted for downward movement with increasing height of pile on cords 18 whose other ends are attached to springs 20 whose other ends in turn are attached to a container 13. The distance between the lower ends 15 of guide 14 and the uppermost section of the tape on the platform 16 is maintained to correspond to half the length of a zig-zag section. As the tape issues from the guide 14 and is re-folded the added weight causes the receiver to be lowered a corresponding amount. The platform 16 which is removable is of a concave form and the receiver 17 is also removable and may be interchanged with a container 11. To prevent faulty re-folding of the tape a pair of photo-electric cells 28, 29 co-operating with a pair of lamps 26, 27 is provided so as to stop the apparatus.
Patent GB-118651-A (GB)
Title: Improvements in and relating to the Manufacture of Glucose.
Inventor: HOPKINSON CECIL
IPC: C13K1/02
Filed: 1917-07-03
Abstract: 118,651. Hopkinson, C. July 3, 1917. Glucose is produced from carbonized waste, that is to say, the friable hydro-cellulose obtained by treating waste textile materials containing both animal and vegetable fibres with a. mineral acid. The carbonized waste is boiled with mineral acid and neutralized, and the precipitate so formed is removed. In an example, one part of the waste is mixed with 3 parts of 65-70 per cent sulphuric acid, and the mixture is allowed to stand for 3-4 hours and is afterwards diluted till the liquor contains 1-2 per cent of acid. The diluted liquor is boiled for 1 hour. The product is neutralized with calcium carbonate, the precipitate is filtered off, and the residual liquid is evaporated to obtain the glucose.
Patent GB-1183372-A (GB)
Title: Isomerization Process
IPC: C07C5/22
Filed: 1967-02-28
Abstract: 1,183,372. Isomerization of cycloaliphatic hydrocarbons. COLUMBIAN CARBON CO. 28 Feb., 1967 [7 March, 1966], No. 9511/67. Heading C5E. Unsaturated cycloaliphatic hydrocarbons, containing at least two ethylenic double bonds in a C 7 -C 16  ring, the double bonds being separated by at least one hydrogen-bearing ring carbon atom, are converted to their thermodynamically more-favoured isomers by contacting with an alkali metal catalyst, e.g. sodium on alumina, at 100-325‹ F. until not more than 97% is converted and thereafter contacting at not more than 250‹ F. until the conversion is completed. Isomerizations specified are 1,5- cyclooctadiene to the 1,3-isomer; 1,3-cyclenonadiene to the 1,5-isomer; 1,5-cyclodecadiene to the 1,6-isomer; 1,5-cyclododecadiene to the 1,3-isomer; and trans-1,3-cyclooctadiene to the cis-isomer.