baber/WOPTO huggingface dataset:
Patent GB-637800-A (GB)
Title: Improvements in or relating to hair curlers
IPC: A45D2/18
Filed: 1947-01-31
Abstract: 637,800. Angular bending; blank-punching; end capping rods &c. ROWLAND, D. M. Jan. 31, 1947, No. 3077. [Class 83 (iv)] A hair curler comprising a flexible metal strip covered with a textile material has metal clips secured to the ends by means of a power press. The press comprises a base 4, an anvil 5 and a superstructure 6 carrying a driven shaft 7 having cams 10, 11 and 12 adapted to operate respectively a shearing-cutter 31, a flat-ended pressing-tool 32 and a cross-bar 33 having double-chamfered blocks 34, adapted to operate bending-tools 23, 28. In operation, a strip of brass 1 with one edge scalloped as shown in Fig. 2, and having its end cut at the middle of a scallop as indicated by one of the lines. 3, is fed through a groove in a plate 27 bolted to the anvil, until the cut end abuts the inner end of a notch 30. The strip then rests across a groove 17 so that a half-scallop is in the notch 30, a complete scallop is across the groove, which ends at an adjustable wall 18, and another halfscallop ends at the edge of a plate 26 which co-operates with the cutter 31 to sever the strip at the next position indicated by the lines 3 in Fig. 2. The pressing-tool 32 then descends, pressing the cut-off piece of strip into the slot thus forming right-angled bends at each end. One end of a textile-covered bendable strip is then placed on the strip within the slot and the members 23, 28 are moved inwardly against the action of springs and so as to bend over on top of the strip, the two up-turned half-scallops. After the retraction of the members 23, 28, the pressing-tool 32 again descends to press the brass end-piece firmly on to the curler. In a modification a strip is fed along a slot 38 and blanks having semi-circular ends are punched out by a punch 39 and die 40 and a spring- pressed plunger 44 passing through the punch then co-operates with a spring-pressed plunger 41 serving to support the ends of the blank, to bend the blank into a V-shape. The blanks are then pressed on to the ends of the curlers by a separate pressing operation.
Patent GB-228900-A (GB)
Title: Process for the production of amorphous finely subdivided litharge
IPC: C01G21/06
Filed: 1925-02-03
Abstract: In the process of making highly dispersed lead oxide described in the parent Specification by oxidizing heating of lead or litharge to at least a white heat, the gases carrying the dispersed lead oxide are suddenly cooled by at least 500 DEG C., by introducing a cooling medium such as cold air, purified cooled flue gases (i.e. the gases issuing from the apparatus in which the lead oxide is separated) or water.  The cooling thus effected may be from 1000 DEG  C. to 500-300 DEG  C.  This cooling prevents the deposition of lead oxide on the walls of the conduits.
Patent GB-1099414-A (GB)
Title: Method of incorporating photographic ingredients into a photographic colloid
Inventor: PAUW ALFONS JOZEF DE
IPC: G03C7/388
Filed: 1965-01-25
Abstract: 1,099,414. Incorporating photographic ingredients into colloids. GEVAERT-AGFA N. V. Jan.25, 1965, No.3148/65. Heading G2C. Photographic colour couplers or mask-forming compounds are incorporated into hydrophilic photographic colloids by dissolving the coupler or compound in tetrahydrothiophen-1:1-dioxide, blending the solution with an aqueous solution or melted gel of the colloid and removing the tetrahydrothiophen-1:1 -dioxide. Mixtures of tetrahydrothiophen-1:1-dioxide with formamide, N- methyl-2-pyrrolidinone or tetrahydrofuran may also be used. The colloid may be a light-sensitive silver halide emulsion or it may be a colloid which is subsequently added to a light-sensitive silver halide emulsion. The tetrahydrothiophen-1:1 - dioxide and other solvents may be removed by washing the colloid, by evaporation under vacuum or by evaporation after coating the emulsion composition. Photographic colloids specified are gelatine, polyvinyl alcohol, zein and casein. Moistening agents such as saponin, aryl-alkyl sulphonates and polyoxyalkylene compounds may be present in the tetrahydrothiophen-1 :1-dioxide solution.
Patent GB-156423-A (GB)
Title: Improvements in and relating to air or gas guns and the like
IPC: F41B11/62
Filed: 1920-02-02
Abstract: 156,423. Suttie, G. D. Grant-. Feb. 2, 1920. Machine guns. - Relates to pneumatic guns of the kind in which the propelling gas is stored in a reservoir from which it is admitted to the barrel to expel the projectile, and consists in generating the pressure in the reservoir by the explosion of a cartridge. In the construction shown, a cartridge is exploded in a chamber c<5> mounted within the stock a and communicating with the gas reservoir c through a non-return valve d. The rear end of the chamber c' is closed by a removable plug e and the cartridge is exploded by a firing-pin e<3> adapted to be struck by a sliding spring hammer a<2> which is pulled back by hand and released. A safety plug c' of soft metal is provided in the reservoir. Specification 154,662 is referred to.
Patent GB-1459162-A (GB)
Title: 2-aryloxy-2-propen-1-one derivatives
IPC: C07C49/84
Filed: 1975-01-24
Abstract: 1459162 2-Aryloxy-2-propen-1-one derivatives ISTITUTO LUSO FARMACO D'ITALIA SRL 24 Jan 1975 [25 Jan 1974] 3244/75 Heading C2C Compounds of the general formula and the optical and stereo isomers and acid addition salts thereof, wherein R is -H or C 1-4  alkyl which may be substituted by halogen and/ or -OH, by an epoxy group or by aryl, R 1  is C 1-4  alkyl, aryl which may be substituted by halogen, methyl or methoxy, or is aminoalkyl of formula where R 3  and R 4  are -H, C 1-4  alkyl, phenyl, phenylalkyl or together form a C 3-8  alkyleneimino group, or oxa-alkyleneimino group or an aza-alkyleneimino group which may be N<SP>1</SP>- substituted, and R 2  is C 1-4  alkyl or aryl which may be substituted by halogen, C 1-4  alkyl or methoxy, are prepared by the following methods: (a) by reacting a compound of formula with where X is Cl or Br, or, except when the compound of Formula II is pyrocatechol, with R 2 C # CCOR 1 , usually in an organic solvent and in the presence of a base; (b) by reacting a compound of formula with RX where X is Cl or Br and R is as above but is not hydrogen; (c) by reacting a compound of formula with R 2 CHO, usually in aqueous NaOH; or (d) for compounds of Formula I wherein R 1  is -CH 2 CH 2 N(R 3 )(R 4 ), by reacting a compound of formula with HCHO and HNR 3 R 4  by the Mannich method.
Patent GB-679499-A (GB)
Title: Improvements in or relating to device and method for machining and heat treating an article
IPC: C21D1/10
Filed: 1950-02-08
Abstract: 679,499. Hardening steel. ROLLINSON, E. W. (Borg-Warner Corporation). Feb. 8, 1950. No. 3251/50. Class 72 [Also in Group XXII] In a method of hardening a surface zone of an article, heat is applied to a portion of the article adjacent the zone to be surface hardened and at the same time the surface to be hardened is heated to the required hardening temperature and quenched. As shown, applied to the machining and hardening of a bearing cup, a machined bearing cup attached to a bar stock 13 has a cutting operation performed on a neck 61 by a tool 28 and at the same time a water cooled induction coil 43 enters the cup portion so that the sides 48 of the coil and the end portion 50 are adjacent the surfaces 59 and 60 of the coil respectively. On passing current through the coil the surfaces 59 and 60 are heated, and, when they have attained the quenching temperature, quenched by a jet of coolant issuing from a pipe 58 fitted axially into an axially movable rod 34 carrying the coil. The heat generated by the cutting is stated to prevent dissipation of the hardening heat supplied by the coil. Heating means other than that produced by cutting may be applied to the end 63 of the cup.
Patent GB-542749-A (GB)
Title: Improvements in or relating to cutters for surgical plaster casts
IPC: A61F15/02
Filed: 1941-03-10
Abstract: 542,749. Cutting plaster bandages. PULLIN & CO., Ltd., R. B., and ROSE, H. D. March 10, 1941, No. 3258. [Class 81 (ii)] [Also in Group XXIII] A portable tool for cutting away surgical plaster casts comprises a circular saw 4 provided with a guard 15 adapted to slide under the plaster so as to protect the patient, the guard being carried by a thin plate 16 lying in the plane of the saw so as to pass through the saw cut. The guard is detachably secured to the body of the machine by a nut 27 and may be replaced by a slotted plate through which the saw projects when preliminary cuts are to be made in thick plaster. The upper part of the saw is protected by a guard 28 and the forward part at which cutting commences is protected by a spring-urged movable portion 36 sliding inside the guard 28 to accommodate the thickness of the plaster cast. The saw is detachably clamped against a disc on the driving spindle by a coin-slotted unit 50, and in order to ensure that the teeth are correctly disposed in relation to the direction of rotation asymmetrically spaced pins 46, 47 are provided on the disc to engage holes in the saw. The latter may be driven by a flexible shaft or by a horizontally or vertically disposed motor 1 coupled to the saw spindle through worm-gear 5.
Patent GB-994281-A (GB)
Title: A sealing method for twin seat fluid valves
Inventor: VARGA OTTO HERMAN
IPC: F16K1/44
Filed: 1963-01-26
Abstract: 994,281. Valves. SEETRU Ltd. Jan. 27, 1964 [Jan. 26, 1963], No. 3336/63. Heading F2V. A valve includes a movable closure member 10 arranged to be brought into engagement with two separate annular seats 6, 7 when the valve is closed, the closure member carrying a sleeve 20 of rubber or like material of general cylindrical form having beads 21, 22 formed integrally at its opposite ends to effect sealing between the closure member and the seats when the valve is closed. The closure member is adjustably loaded by a spring 13, and when lifted by the pressure at an inlet 2, allows the fluid to flow through it as well as around it to outlet apertures 3. An annular rib 24 engages a groove in the sleeve 20 while the beads 21, 22, which may be of square, trapezoidal, D-shaped or round section are located by grooves in the closure member. Specifications 826,956 and 899,283 are referred to.
Patent GB-285640-A (GB)
Title: Improvements relating to instruments for measuring the depth of liquids
IPC: G01C13/00
Filed: 1927-02-07
Abstract: 285,640. Murphy, L. Feb. 7, 1027. Indicators actuated by pressure of head of liquid. -In apparatus of the kind wherein the depth of a liquid in a tank T is indicated by a pressure gauge G, Fig. 1, measuring the pressure of gas forced through an openended pipe L immersed in the liquid, the gas is generated in an electrolytic cell E. The cell P, Fig. 4, is U-shaped, so that when a certain gas pressure is reached, as for instance when the tank T is full, the electrolyte is forced out of one leg of the cell and the electrodes are uncovered, thus cutting off the current. One of the electrodes in a cell may be surrounded by an openended tube containing electrolyte and serving as a pressure gauge and as an outlet for one. of the gases generated in the cell. One of the gases may be combined with another substance either inside or outside the cell to form a solid or liquid. To indicate a ship's draught, the tube L is arranged to place the pressure indicator in communication with the sea at the sides, bow or stern and near the bottom of the ship. Specifications 116,479, 116,878, and 200,011 are referred to.
Patent GB-711538-A (GB)
Title: Improvements in or relating to the manufacture of vinyl copolymers
IPC: C08F212/14
Filed: 1951-02-14
Abstract: Copolymers are made by heating a vinyl compound which may be added portionwise, with non-conjugated drying oil fatty acids either alone or combined with polybasic acids and polyhydric alcohols as modified alkyd resins at a temperature of 325 to 550 DEG F in the presence of a catalyst comprising an aromatic compound containing a quinoid group.  The fatty acid may contain up to 30 per cent. of conjugated fatty oil acids.  The alkyd resin may be preformed or prepared in situ.  The vinyl compound may be styrene or alpha-methyl styrene and mixtures, vinyl chloride, vinyl acetate, vinyl butyrate, vinyl propionate, acrylonitrile or acrylic acid esters.  The acids may be obtained from the seeds of soya, flax, chia, perilla, safflower and sunflower plants, and from fish oils such as menhaden and sardine. Specified acids are mixtures of oleic, linoleic, linolenic, and eleostearic acids. Polyhydric alcohols mentioned are glycerine, glycol, pentaerythritol, di-and poly-pentaerythritol, sorbitol, mannitol and polyvinyl alcohol.  The acids may be malonic, succinic, glutaric, adipic, pimelic, suberic, azelaic, sebacic or phthalic. Catalysts specified are benzoquinone, naphthaquinone, anthraquinone, phenanthraquinone, retene quinone and hexachlorphenol.  The copolymers may be used in coating and impregnating compositions, protective and decorative coatings, printing inks, linoleum, emulsified oil products, plasticizers and adhesives.
Patent GB-192714-A (GB)
Title: Improvements in or relating to automatic goods distributors
IPC: A47F3/026
Filed: 1923-02-06
Abstract: 192,714. Haustgen, F. F. Feb. 6, 1922, [Convention date]. Delivery of articles stored on supports released in succession; coin action, weight.-For supplying bread rolls, chocolate tablets, cigarette papers &c., the articles are stored on shelves 13, Fig. 1, of baskets a<1> arranged round and removably secured by catches b<1> to a cylinder 11 having a screw 9 of quick pitch working in a fixed nut 8. The shelves are disposed horizontally so that their middle points are on a helix corresponding to the helix of the screw 9. When the cylinder 11 is rotated step-by-step, it descends and rods 14 on the shelves come successively in contact with a stop 15, the shelves. being thereby tilted to deliver articles to a tray 3. A burner may be provided at the bottom of the casing for heating the rolls. A friction disc on an electric motor M drives a disc 16 which rotates a tube 10 fixed to the cylinder 11 but through which the tube can slide. The disc 16 is normally locked by a contact piece 17, Fig. 3, engaging one of several notches 20, the number of notches corresponding to the number of baskets. When a coin or token J is inserted in a shoot B it moves a lever 18 carrying the contact piece 17 which completes at 21, 22 the circuit of the motor M. As the disc 16 rotates a projection m thereon moves the contact piece 17 further against a spring strip 23, thereby allowing the coin to drop into a, money box. The piece 17 then engages the next notch 20. In a modification, Fig. 4, the disc 16 is mounted on a pulley 36 through which the tube 10 passes and which is rotated by a cable 34 carrying weights 34<1>, 35'. The disc is locked by a bellcrank lever 31 engaging its notches, this lever being connected by a link 30 to a bell-crank lever 29, 26. The arm 26 is moved by a coin or token J to release the disc 16. Tokens of special form.-Special tokens having ribs may be used.
Patent GB-1204585-A (GB)
Title: Improvements in or relating to the fermentation of tea
Inventor: MILLIN DAVID JOHN
IPC: A23F3/08
Filed: 1968-01-23
Abstract: 1,204,585. Tea fermentation. TENCO BROOKE BOND Ltd. 6 Nov., 1968 [23 Jan., 1968], No. 3625/68 Heading A2B. An instant preparation is prepared by disintegrating green leaf, mixing with water in a fermentation vessel having an inlet for introducing gas into the leaf suspension, introducing an oxygen containing gas at a controlled rate to give a minimum concentration of dissolved oxygen of 10% of air saturation, allowing fermentation take place whilst controlling the oxygen concentration at the desired level, eliminating further enzyme activity, preferably by beating, before or after removal of insoluble materials and subsequently drying the resulting liquor i.e. by freeze- or spray-drying. The liquor from the fermentation may be mixed with liquor from another source prior to drying. Volatile substances from the fermentation may be collected in a trap and recycled to the initial suspension. Means may be provided for controlling the temperature and pH of the suspension. The fermentation may, in part at least, be carried out in the presence of a peroxide. The examples describe the fermentation of green leaf, optionally mixed with tea bush prunings, optionally in the presence of hydrogen peroxide.
Patent GB-384129-A (GB)
Title: Improvements in or relating to internal combustion engine-electric vehicles
IPC: H02J7/32
Filed: 1932-02-08
Abstract: 384,129. Charging batteries. SULZER FRERES SOC. ANON., Winterthur, Switzerland. Feb. 8, 1932, No. 3633. Convention date, March 6, 1931. [Class 38'(iv).] In petrol-electric vehicles, a storage battery supplying excitation current to the generator is charged by the generator through a regulating resistance which is varied according to the generator voltage so as to keep the charging current substantially constant. Resistances 12, 13, respectively controlling the excitation and charging currents, may be simultaneously controlled by a handle 11 so that as one is increased the other is decreased. They may be arranged in a control box 10, Fig. 1, on a vehicle in which the generator 2, driven by an engine 1, is supplied with excitation current from a battery 7 through leads 8 and serves to drive motors 5, 6 through circuits 3, 4 controlled by a main switch 14 which may be interconnected to the control handle 11 to enable charging to be continued during short stoppages of the vehicle.
Patent GB-828433-A (GB)
Title: Improvements relating to apparatus for the transfer of dense particulate materials
Inventor: SHAW JAMES
IPC: B65G21/22
Filed: 1955-02-08
Abstract: 828,433. Endless conveyers. KEIR & CAWDER Ltd. May 8, 1956 [Feb. 8, 1955], No. 3667/55. Class 78 (1). Material fed into a hopper 3 falls on to an endless articulated plate conveyer comprising troughed plates 6 carried by the links of a pair of endless chains 12 carrying rollers 11 which run on cushioned guide rails 15. The cushioning of the guide rails is affected by rubber cones 20 on which the rails rest through the intermediary of a washer 21. The cones 20 are mounted in steel bases 19 carried on supporting brackets 18. The brackets 18 are positioned such that the cones 20 are close together at the portion of the conveyer which is subject to maximum impact from falling material and are spaced apart towards the discharge end of the conveyer which underlies a downwardly and forwardly inclined wall of the hopper. The cones 20 may be arranged laterally of the rails 15 so as to be in shear.
Patent GB-541361-A (GB)
Title: Improvements in or relating to coated wires
IPC: C09D167/08
Filed: 1940-02-28
Abstract: 541,361. Synthetic resinous coating compositions. DU PONT DE NEMOURS & CO., E. I. Feb. 28, 1940, No. 3679. Convention date, Feb. 28, 1939. [Class 2 (iii)] A wire is coated with an electrically insulating enamel comprising a synthetic resinous ester of a polyhydric alcohol with the reaction product of maleic anhydride and α-terpinene, e.g. the dibasic acid known as "Petrex acid" obtainable by the method described in U.S.A. Specification 1,993,025. Examples are given of enamels prepared from :-(1) glycerine, "Petrex" acid, linseed oil, chinawood oil, litharge, hydrogenated petroleum solvent and a liquid drier. Instead of the oils mentioned, there may be used oiticica oil, perilla oil, dehydrated castor oil or fish oil; (2) the composition of Ex (1), blended with a solution of phenol-formaldehyde resin, ester gum, fossil resins or paracoumarone ; (3) "Petrex" acid, furfural, and diethylene glycol, triethylene glycol, glycerine or glycol. The furfural may be replaced by dioxane, ethylene dichloride or aromatic hydrocarbons. This resin is compatible with polyvinyl acetal resins, such as polyvinyl formal or polyvinyl acetal. U.S.A. Specifications 1,993,026 and 1,993,028 also are referred to.
Patent GB-1027179-A (GB)
Title: Knitted fabrics and method of and apparatus for producing them
IPC: D04B1/06
Filed: 1963-01-29
Abstract: 1,027,179. Knitting. M. NEBEL and E. NEBEL. Jan. 29, 1963 [Jan. 31, 1962], No. 3698/63. Headings D1C and D1K. When knitting ladder-resistant fabric, in one course (a) the thread is formed into stitches of small loop length by all needles and, in the next course (b), alternate needles form stitches of larger loop length, the intervening thread forming floats, the thread length of the course (b) being equal to or longer than that of course (a) so that the stitches of course (a) held in course (b) rob the adjacent stitches of course (a) of thread so that they form very small locking stitches in alternate wales, the locking stitches in the next course (a) being formed in the other wales. A stocking may be knitted of this fabric on a circular knitting machine. The course b with long stitches may be formed on the sinker hook Ph Fig. 5b, (not shown), the sinkers having been moved inwardly further and earlier than normal and course b may be formed in front of or behind the sinker hook. Otherwise the long course may be formed on a higher sinking point Pb behind the sinker hook, Fig. 5x (not shown). Alternatively, the difference in thread length may be produced by adjusting the needle cam. The stocking fabric may be knitted on a straight-bar machine.
Patent GB-104549-A (GB)
Title: New or Improved Machine for Folding and Pasting Flexible Material such as Leather, Paper, Cloth and the like.
Inventor: BIRKBECK HENRY
IPC: B65H45/101
Filed: 1916-03-13
Abstract: 104,549. Birkbeck, H., (International Leather Folding Machine Co.). March 13, 1916. Coating-machines.-In the pasting and folding of leather, cloth, paper and other flexible sheet material, paste is applied to the turned-up edge of the sheet 177 by a bevel pasting-roll 162 carrying a creasing-disk 176 coacting with a heated creasing- disk 195 below the sheet. Paste is supplied through an aperture in a formation 163 by a disk 161. The device is carried in pivoted bearings so that it can be tilted out of operative position. In treating straight-edged material, paste is applied prior to turning up the edge by a pasting-roll fed through a train of rolls from a roll dipping into a fountain.
Patent GB-1084983-A (GB)
Title: An arrangement for increasing the safety against unintentional initiation of so called low energy cord blasting assemblies
IPC: C06C5/06
Filed: 1965-01-29
Abstract: 1,084,983. Blasting assemblies. NITROGLYCERIN A.B. Jan. 29, 1965 [Jan. 31, 1964], No. 3923/65. Heading F3A. A blasting cord assembly comprising a cord having a core 1 of high velocity detonating explosive within a metal sheath 2 over which is at least one layer 3 of insulating material, a booster cap capping one end of the cord and a blasting cap capping the other end, the booster cap and the blasting cap each comprising a metal shell, an electrically conducting connection 11 being provided between the metal sheath and at least one of said metal shells. The blasting cap has a metal shell 4 housing a detonating charge 5, priming charge 6 and a delay charge 7 over which is fitted a metal capsule 8 with an apertured base. The booster cap (not shown) transmits detonation from a trunk line of detonating fuze cord to the assembly and comprises a metal shell with a detonating charge therein. The core 1 may be 0À2 grams/metre of PETN and the sheath 2 may be lead or other ductile metal, the layer or layers 3 being paper or synthetic plastics. The conductor 11, which protects the assembly from ignition by stray currents may be a staple made of copper wire or a body of revolution. In an alternative form (not shown) the sheath 2 is used as the connection, the end of the fuze cord being stripped of insulation and bent up to contact the shell 4.