baber/WOPTO huggingface dataset:
Patent GB-1261142-A (GB)
Title: Improvements in and relating to camera shutters
IPC: G03B9/18
Filed: 1969-02-19
Abstract: 1,261,142. Camera shutters. RICOH K. K. Feb.19, 1969 [Feb.29, 1968], No.8871/69. Heading G2A. A camera shutter comprises two overlapping blades 2, 3 each partially covering an exposure aperture and each pivotally mounted upon a pin 4, a shutter operating member 12 angularly displacing blade 2 with respect to blade 1 until the blades are superimposed and thereafter to move both blades together until the aperture is uncovered, an abutment 8a limiting displacement of the blades, and driving means 5 operating after the blades engage the abutment to move the blades to recover the aperture. A bent position 2a of blade 2 engages projection 3b of blade 3 during the opening movement, and at the end of the closing movement, a projection 3a of blade 3 engages a pin 6 and bent portion 2a engages projection 3a. Two or more driven blades may replace the single driven blade 3 illustrated. Abutment 8a is provided on a lever 8 and is displaced from the path of the blades upon insertion of a flash-bulb which moves a lever 10 upwardly, a stop pin 7 then allowing a longer exposure time. A plurality of engaging levers may be provided, a bent portion of each being selectably movable into a position between 8a and 7 to give different shutter speeds.
Patent GB-373704-A (GB)
Title: Process of manufacture of plastic substances the bases of which are cellulose derivatives
IPC: C08K5/43
Filed: 1931-03-23
Abstract: N-mono or di-oxyalkyl sulphonamides of benzene or its homologues are used as plasticizers for cellulose derivatives. The plasticized compositions may be used in varnishes, e.g. containing the plasticizer with half its weight of cellulose acetate or ethyl cellulose, or for films, e.g. using slightly hydrolysed cellulose triacetates and chloroform--alcohol solvent, or ethyl cellulose and alcohol-benzene, or for plastic masses.  In examples, p-toluene sulphonamide is reacted with glycol chlorhydrin in aqueous caustic soda, p-toluene sulphonamide reacted with ethylene oxide in soda lye, benzene sulphonamide reacted with glycol monochlorhydrin in aqueous caustic soda.ALSO:N-mono- or di-oxyalkyl sulphonamides of benzene or its homologues are used as plasticizers for cellulose derivatives. The plasticized compositions may be used in varnishes, e.g. containing the plasticizer with half its weight of cellulose acetate or ethyl cellulose, or for films, e.g. using slightly hydrolysed cellulose triacetates and chloroform-alcohol solvent, or ethyl cellulose and alcohol-benzene, or for plastic masses.  In examples, p-toluene sulphonamide and monoethyl-p-toluene sulphonamide is reacted with glycol chlorhydrin in aqueous caustic soda, p-toluene sulphonamide reacted with ethylene oxide in soda lye, benzene sulphonamide reacted with glycol monochlorhydrin in aqueous caustic soda.ALSO:N-mono or di-oxyalkyl sulphonamides of benzene or its homologues are used as plasticizers for cellulose derivatives. The plasticized compositions may be used in varnishes, e.g. containing the plasticizer with half its weight of cellulose acetate or ethyl cellulose, or for films, e.g. using slightly hydrolysed cellulose triacetates and chloroform-alcohol solvent, or ethyl cellulose and alcohol-benzene, or for plastic masses.  In examples, p-toluene sulphonamide is reacted with glycol chlorhydrin in aqueous caustic soda, p-toluene sulphonamide reacted with ethylene oxide in soda lye, benzene sulphonamide reacted with glycol monochlorhydrin in aqueous caustic soda.
Patent GB-1042631-A (GB)
Title: New fused polycyclic hydrocarbon derivatives and processes for the preparation thereof
IPC: C07C62/38
Filed: 1963-03-06
Abstract: Novel compounds of the general formulae <FORM:1042631/C2/1> <FORM:1042631/C2/2> wherein either X represents the oxygen atom of a keto group and there is a 3a(4) double bond, or X represents the group H, b -OR1 (wherein R1 is hydrogen or C1- 6 acyl) and there is optionally a 3a(4) double bond, and R is C1-6 alkyl, are prepared by reacting 1,3-dioxo-2 -methylcyclopentane with an alkyl 5-oxo-6-heptenoate to give racemic 1,5-dioxo-4-(21-carboxyethyl) -7a - methyl - 5,6,7,7a - tetrahydroindane, resolving this with an optically active base when the dextrorotatory 7ab -methyl compound of Formula I wherein X is oxygen is required, reducing this to give the corresponding compound wherein X is H, b -OH, acylating this when the compound wherein X is H, b -O acyl is required, and catalytically hydrogenating either of these last-named compounds to give 1b -hydroxy or a 1b -acyloxy-5-oxo - 4 - (21 - carboxyethyl) - 7ab  - methyl-3a#c,4b ,5,6,7,7a hexahydroindane. The lastnamed 1b -acyloxy compounds may also be hydrolysed to the 1b -hydroxy compound with alkali.  Compounds of the Formula II are formed when the initial reaction product, viz. an alkyl 7-(11,31-dioxo-21 -methylcyclopentyl-21) -5-oxo-heptanoate is treated with an acid or acid-base couple in an anhydrous medium.  If the treatment is effected in an aqueous medium 1,5 - dioxo - 4 - (21 - carboxyethyl) - 7a - methyl-5,6,7,7a - tetrahydroindane is formed direct, although this may also be prepared by acid hydrolysis of compounds II.  The resolution is preferably effected with l-ephedrine, giving the novel l-ephedrine salt of dextrorotatory (acetone) 1,5-dioxo-4-(21-carboxyethyl)-7ab -methyl-5,6,7,7a -tetrahydroindane, but other bases such as quinine, cinchonine and threo(+)-1-p -nitro-phenyl -2-aminopropane-1,3-diol may also be used.  Suitable acylating acids are alkanoic, cycloalkane-carboxylic, cycloalkymethyl carboxylic, 2-furan-carboxylic, 5-bromo-2-furan-carboxylic, nicotinic, b -ketocarboxylic, diethylaminoacetic and aspartic acids. Examples are given.
Patent GB-159426-A (GB)
Title: A new or improved adjustable wrench
IPC: B25B13/16
Filed: 1920-03-31
Abstract: 159,426. Leechman, G. D. March 31, 1920. Wrenches; wrenchjaw faces. - An adjustable wrench comprises two longitudinal members which cross e a c h other and have one or two pairs of ends serving as wrench jaws, and is provided with means for adjusting the members angularly and laterally relatively to one another, such means being capable of operation independently of each other. As shown in Fig. I, one pair of jaws 4, 6 is formed with cut-away parts 11, 12, and the other jaws 9, 10, are plain, the jaw members 1, 2 being formed with bent parts 7, 8 at the point of crossing and each pair of jaws being fitted with a screw 13, or 14, and a corresponding nut 15, 16 to adjust the sizes of the jaws. The jaws are pressed outwards by springs 18 arranged on the screws and in recesses in the jaw members as shown. The screws are preferably secured by pins, or rivets, to the jaw members In operation, when one set of jaw members, for example, 4, 6 is being adjusted to a nut, &c., the nut 15 is unscrewed while the adjustment is being effected by the nut 16, and after the adjustment is effected, the nut 15 is screwed up to maintain the jaws securely in their adjusted position. In a modification, Fig. IV, each atrip is formed of two similar parts 1, 1<a>, 2, 2<a>, the parts 1, 1<a> being bent outwards and the parts 2, 2<a> inwards at the positions of crossing, the extent of the bending being reduced in this construction. Hardened jaw pieces as 19, 20 are secured to the ends of the parts 1, 1<a>, 2, 2<a>.
Patent GB-896313-A (GB)
Title: Railway track
Inventor: DEENIK IR JOHAN FREDERIK
IPC: E01B3/40
Filed: 1960-03-17
Abstract: 896,313. Railway rail tracks. EDILON N.V. March 17, 1960, No. 9438/60. Class 104 (2). In a railway track consisting of rails 3, 4 sup ported on two rows of blocks 1, 2 interconnected by rods 9 the rails 3, 4 and rods 9 are connected to the blocks 1, 2 by an electrically-insulating layer of cement or glue. The rods 9 may be provided at their ends with a projecting pin, Fig. 2 (not shown), which engages a hole 17 in the block 1 or 2. Rail fasteners are secured in holes 10 in the blocks 1, 2 by an insulating glue.
Patent GB-744317-A (GB)
Title: Apparatus for preventing surging in a turbo-compressor
IPC: F04D27/02
Filed: 1953-04-07
Abstract: 744,317. Centrifugal compressors. MASCHINENFABRIK OERLIKON. April 7, 1953 [April 9, 1952], No. 9456/53. Class 110(1) [Also in Group XXIX] Apparatus for preventing surging in a centrifugal compressor comprises a venturi or like measuring nozzle 6 which creates a pressure difference corresponding to the amount of medium from the compressor passing through it, a control member such as the liquid sealed bell 8 responsive to the pressure difference created by the nozzle 6 and to the pressure difference between the pressure at the throat of the nozzle and the atmosphere, an actuating device such as the differential piston 22 controlled by the control member, and a hollow cylindrical sliding valve 1 operated by the actuating device to throttle the inlet of the compressor. The valve is guided by rollers 3 engaging fixed tracks (not shown) in the compressor casing and is operated through a bell crank lever 24 by the differential piston 22, the smaller area Fb of which is exposed to the pressure in the compressor delivery pipe 5 and the larger area Fa of which is connected to the pipe 5 through a throttle screw 23. The pressure on the area Fa is controlled by needle valve 19 supported by resilient steel plates 21 and operated through a floating lever 15 and a flexible link 16 by the spring loaded liquid sealed bell 8. The link 16 is maintained in tension by a weight 17. The delivery pipe 5 contains a throttle valve 7. The bell 8 operates in a mercury seal 13. A bellows 9 connects the bell 8 to a housing 10. The floating lever 15 is re-set by a cam 25 acting through a lever 27 having a fixed pivot 28. In the case of a multi-stage compressor, the lever 24 operates, through a shaft 26 bearing suitably profiled cams 30, bell crank levers 32 connected to operate further valves such as the hollow cylindrical valve 1. Reference has been directed by the Comptroller to Specification 700,152.
Patent GB-476918-A (GB)
Title: Automatic firearm having an interchangeable barrel
IPC: F41A21/48
Filed: 1937-04-02
Abstract: 476,918. Automatic guns. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST, BRNO. April 2, 1937, No. 9461. Convention date, April 17, 1936. [Class 92 (ii)] Relates to gun barrels which are readily removable by a sliding movement after tilting the barrel about a front support to disengage the fastening means provided at the breech end. According to the invention, spaced projections 10 on the barrel engage a rib 13 on the body 11 to prevent lateral movement of the barrel when in the attached position, the upper rib 10 bearing on the rib 13 to permit removing the barrel by a rocking movement in the direction p followed by a sliding movement in the direction q axially of the firearm. The barrel is further secured by a bottom projection 15 engaging a recess 16 in the body. The projections 10 and rib 13 are provided on each side of the barrel and permit sliding of the barrel during recoil in which case the breech end of the barrel is attached to a recoiling casing 5. Specification 383,754 is referred to.
Patent GB-1375524-A (GB)
IPC: B22D17/30
Filed: 1973-02-27
Abstract: 1375524 Casting processes AEG-ELOTHERM GmbH 27 Feb 1973 [2 March 1972] 9472/73 Heading B3F In a method of die casting, the metal to be fed to the die or die casting machine is obtained by inductively melting down a hollow cylinder 9 of the metal. In the embodiment shown, the metal is fed to the shot duct 3 of a pressure die casting machine from a crucible 6 provided with water-cooled induction coils 7.
Patent GB-106022-A (GB)
Title: Improvements in or relating to Cooking Apparatus.
Inventor: WADE HAROLD
IPC: A47J27/16
Filed: 1916-07-05
Abstract: 106,022. Wade, H., (Trescott, C. B.). July 5, 1916. Gas cooking-stoves.-To enable cooking to take plate at atmospheric pressure and at low temperatures, namely at not more than 180‹ F. for meat and about 200‹ F. for vegetables, a water spray is introduced into a gas oven. Fig. 2 shows an oven 13, with a 'hinged lid 36, heated by a gas ring 35; a loosely-covered vessel 38 containing the articles to be cooked is placed in the cooking chamber 3, while a cold water spray is introduced at 11. A drain pipe 8 is provided.
Patent GB-610124-A (GB)
Title: Improvements in or relating to cinematograph film driving means
IPC: G03B1/42
Filed: 1946-03-27
Abstract: 610,124. Kinematograph apparatus. HARPER, M. March 27, 1946, No. 9505. [Class 97 (i)] A film sprocket is built from rings, each carrying a single row of teeth, assembled on a central bush, with untoothed spacer rings between. A sprocket for driving film as described in Specification 508,795 comprises toothed rings 13 with untoothed spacer rings 14 and end rings 12 assembled on a bush 11, the teeth of the central ring being spaced midway between those of the outer rings. The bush 11 may be tapered internally for securing to a tapered shaft or may be pinned or splined thereto. Specification 373,314 also is referred to.
Patent GB-1372156-A (GB)
Title: Bottomdumping trailer with shiftable closure assembly
Inventor: ROSENBAUM G F
IPC: B61D7/00
Filed: 1973-02-27
Abstract: 1372156 Dumping trailer CMI CORP 27 Feb 1973 [12 April 1972] 9546/73 Heading B7B  A vehicle has a hopper intermediate its ends, the hopper having a lower rectangular opening with bracket means carried adjacent each of the four sides of the opening so that closure means may be selectively removably secured to the bracket means on opposite sides of the opening. As shown in Fig. 1, front and rear panels 42, 44 are welded to side panels 28, 30 along their lines of intersection to: define a hopper 18. The lower end of the hopper comprises four side panels, e.g. 58, which terminate in a rectangular opening. Brackets, such as 68, 70, are secured to a steel channel member 34 along each of the panels 28, 30, 42, 44. A closure assembly 20, Fig. 2, having spaced support members 84, 104 with pivoted closure members 124, 140, may be separated from the trailer frame 12 by removing pins, such as 90, 92, securing the support members 84, 104 to the brackets on opposite sides of the hopper opening. Also pins 230, 244 are removed to free struts 222, 236. The closure assembly 20 may then be turned through 90 degrees in a horizontal plane and secured again to the appropriate brackets on the remaining sides of the hopper. The struts 222, 236 which slide in brackets 232, 246 fixed to closure members 124, 140 have apertures 248 to be selectively engaged by a pin 250 to thus secure the assembly in one of a number of open positions. The closure members may be opened or closed by two-way power cylinders 158 pivoted thereto and linking means 70, 180, 186 pivoted to each of the support members 84, 104 and to closure members are provided for controlling their rotation in response to the actuation of the power cylinders 158. In another embodiment, Fig. 10 (not shown) two hoppers with releasable closure means are provided on a vehicle.
Patent GB-1115573-A (GB)
Title: Method of producing moulded articles in expanded cellular rubber
Inventor: EDGE ALAN JAMES
IPC: C08J9/04
Filed: 1966-03-04
Abstract: 1,115,573. Expanded cellular rubber mouldings. VOLCREPE Ltd. 27 Feb., 1967 [4 March, 1966], No. 9548/66. Heading B5A. Mouldings of expanded cellular rubber are made by incorporating into the rubber mix a high temperature blowing agent, i.e. one that reacts at least 20‹ C. above the vulcanizing temperature. The rubber mix is then vulcanized in a mould, removed from the mould and foamed by applying heat uniformly over the whole surface of the component (preferably in a fluidized bed). The rubber may be any natural or synthetic compound that can be vulcanized. The process may be used to form hollow tubes and complex shapes such as mouth and earpieces for communications equipment. The vulcanized moulded preforms may be stored before foaming.
Patent GB-1105112-A (GB)
Title: Photocopying process
IPC: G03G9/087
Filed: 1965-03-05
Abstract: 1,105,112. Photo-sensitive processes. FUJI SHASHIN FILM KABUSHIKI KAISHA. March 5, 1965 [March 5, 1964], No.9574/65. Heading G2C. A photographic process comprises imagewise exposing a material containing a diazonium salt, a diazo formeldehyde condensation product or an azide on a support and developing the latent image with a powder which adheres to the unexposed areas and removing loose powder from the exposed areas. The image may be fixed by heating or treatment with a solvent vapour. In the examples, the support may be rubbed with a gelatine layer and then coated with a diazo resin or a gelatine layer containing a diazotized p-phenylene diamine or a polyvinyl butyral, naphthylazide layer may be directly applied to a support. The material is then imagewise exposed, developed with pigmented resin particles and fixed with trichloroethylene vapour. Alternatively the light-sensitive layer may contain a maleic anhydride/vinyl acetate copolymer or an isophthalic acid/triethylene glycol/ethylene glycol condensation product.
Patent GB-513015-A (GB)
Title: An improved line-ruling device for use on blackboards or the like
IPC: B43L13/12
Filed: 1938-03-30
Abstract: 513,015. Pencil holders. BLOCH, A. March 30, 1938, No. 9664. [Class 146 (iii)]. [Also in Groups XX and XVI] In a ruling device for drawing a series of parallel chalk lines on a blackboard, a number of sticks of chalk 4 are held, each in: a separate socket 2, in a holder B and resilient means, e.g., the springs 3, are provided to push the chalks in an outward direction. The chalks may be arranged to draw on the blackboard directly, or, as shown, the holder B may be adjustably mounted in a frame A so that the chalks are pressed against a series of spaced tyres 5, carried by a roller C and adapted to transfer the chalk from the sticks to the blackboard. The roller C and tyres 5 may be replaced by a series of axially spaced discs.
Patent GB-948696-A (GB)
Title: A process for the preparation of high molecular weight polymers or copolymers
IPC: C08F2/54
Filed: 1962-03-13
Abstract: Polymers are produced by exposing at least one ethylenically unsaturated monomer to high energy ionizing radiation in an aqueous medium which contains a sulphur dioxide or bisulphite adduct of an ethylenically unsaturated aldehyde.  Polymerizable monomers specified are acrolein, alpha-methyl, alpha-ethyl, alpha-butyl, alphadecyl, alpha-cyclohexyl, alpha-chloro and betaphenyl acroleins, styrene and derivatives thereof, olefines, diolefines, vinyl and allyl esters, allyl alcohol, allyl and vinyl ethers, vinyl ketones, acrylamide, acrylic and methacrylic acids, esters and nitriles, vinyl halides, vinylidene chloride, allylamine, vinyl pyrrolidone, N-allyl acetamide and cyclohexenone.  Such monomers may be polymerized singly or in admixture with one another.  The examples describe the use of X-rays to polymerize acrolein, methacrolein and mixtures of acrolein with acrylonitrile, ethyl or butyl acrylate, vinyl acetate styrene and alph-methyl styrene in an aqueous medium containing polyacrolein-sulphur dioxide and polyacrolein-bisulphite adducts. The polyacroleins so obtained may themselves be solubilized by sulphur dioxide and sodium bisulphite, and the resulting derivatives may be further reacted with an inorganic or organic base to yield hydroxypolycarboxylic acid salts, which may be converted to the free-acid form.ALSO:As wet-strength agents for papers there are used polymers of unsaturated aldehydes solubilized by sulphur dioxide or bisulphites which have been prepared by polymerizing the monomeric aldehydes by means of high energy ionizing radiation in aqueous media containing a sulphur dioxide or bisulphite adduct of a polymer of an unsaturated aldehyde.  The polymers may be applied during the beater stage, or as an after-treatment to the paper. In an example (II) sheets of bleached sulphite paper are passed through an aqueous polymer solution and then allowed to dry, the polymer being obtained by polymerizing acrolein by means of X-rays in an aqueous medium containing a polyacrolein-sulphur dioxide adduct, and dissolving the resulting polymer in aqueous sulphur dioxide.
Patent GB-704591-A (GB)
Title: A method of continuously refining fatty oils
IPC: C11B3/06
Filed: 1952-04-17
Abstract: <PICT:0704591/III/1> In the continuous refining of fatty oils by admixing therewith alkali hydroxide and alkali sulphate and separation of the soapstock formed by centrifuging, the oil is mixed with excess alkali hydroxide to neutralize the free fatty acids and to effect decolorizing of the oil, and with alkali sulphate in amounts corresponding to 30-80 grs. per 100 grs. alkali hydroxide, the centrifugation of the mixture being carried out at a temperature which has an emulsion-breaking effect on the soap-in-oil type of emulsions.  The oil-in-soap type of emulsions which are also formed are unable to exist at this temperature when alkali sulphate is present in the stated proportions.  The alkali hydroxide and alkali sulphate may be separately mixed with and atomized in the oil or they may be mixed with one another in the stated relation and together mixed with and atomized in the oil. The alkali hydroxide is perferably mixed with the oil in an amount of 10 to 30 per cent. in excess of that required to neutralize the free fatty acids.  The oil may be heated to its emulsion-breaking temperature necessary for the centrifuging, either prior to or after the alkali agents are added. In a suitable plant, the oil in a tank 1 and an aqueous solution of the alkali hydroxide and sulphate in the stated relation in a tank 2 are pumped in measured quantities respectively to a mixer 5.  From the latter the mixture is led to a heating unit 6 and thence, after the heating, to a centrifuge 7 for removing the soapstock.  In an example, palm oil is refined using sodium hydroxide of 20 DEG B<\>ae. and sodium sulphate.
Patent GB-981345-A (GB)
Title: Improvements in and relating to emulsions
IPC: C09K23/00
Filed: 1963-03-13
Abstract: An emulsifying agent comprises mixtures of polymerization products of monomeric unsaturated fatty alcohols, containing at least twelve carbon atoms, with the hydroxyl groups of starting substances largely unaltered.  Exemplified alcohols are dodecylene oleyl ricinoleyl linoleyl and similar ester reduction products.  Emulsified are beef tallow, "Vaseline" (Registered Trade Mark), and unspecified natural or synthetic oils, fats and waxes.  The water-in-oil emulsions may be reversed by the addition of fatty alcohol sulphates, alkylpolyglycol ether, glycerine alkyl ether or glycerine alkyl ester sulphates.