baber/WOPTO huggingface dataset:
Patent GB-753552-A (GB)
Title: A polyene aldehyde and the manufacture thereof
Filed: 1954-06-29
Abstract: The invention comprises 4-methyl-6-[21,61,61-trimethyl - cyclohexen - (11) - yl] - hexadiene-(2,4) - al - (1), and the preparation thereof by acetalizing 2 - methyl - 4 - [21,61,61 - trimethylcyclohexen - (11 - yl] - buten - (2) - al - (1) with a triester of an aliphatic orthocarboxylic acid, condensing the acetal so produced with a vinyl ether in the presence of an acidic condensing agent and hydrolysing the thus formed etheracetal of 3 - hydroxy - 4 - methyl - 6 - [21,61,61-trimethyl - cyclohexen - (11) - yl] - hexen - (4)-al - (1) in an aqueous acidic medium.  The triesters used in the above process are preferably derived from lower aliphatic orthocarboxylic acids and lower aliphatic alcohols-particularly the trimethyl, triethyl and tributyl esters of orthoformic acid.  The reaction with the triester is preferably carried out in the presence of an acidic condensing agent, e.g. boron trifluoride etherate, zinc chloride, ammonium chloride, ammonium nitrate, p-toluenesulphonic acid or phosphoric acid.  The condensation with the vinyl ether is preferably carried out using a vinyl ether of the same alcohol involved in the acetalization step.  Suitable acidic condensing agents for the reaction with a vinyl ether are boron trifluoride etherate, zinc chloride, titanium tetrachloride, aluminium chloride, ferric chloride and stannic chloride.  The aqueous acidic medium used for the final hydrolysis step may be derived from organic or inorganic acids such as p-toluenesulphonic, acetic, propionic, oxalic, sulphuric and phosphoric acids, or salts having an acid reaction such as zinc chloride and sodium bisulphate, or the aqueous acidic medium may comprise a concentrated aqueous solution of acetic acid containing sodium acetate.  Alcohol formed during the hydrolysis may be continuously distilled off.  It is preferable to carry out all stages of the synthesis in the absence of oxygen, and an antioxidant such as hydroquinone or a -tocopherol may be present at any stage in the reaction mixture.  A number of examples are given describing the preparation of the above aldehyde, and its semicarbazone and 2,4-dinitrophenylhydrazone derivatives are prepared.  1,1,3 - Trialkoxy - 2,6 - dimethyl - 8 - [21,61,61-trimethylcyclohexen - (11) - yl] - octadiene - (416) is prepared by acetalizing the above hexdiene-(2,4) - al - (1) and condensing the resulting acetal with a propenyl ether.  2,6 - Dimethyl - 8 - [21,61,61 - trimethyl - cyclohexen - (11 - yl] - octatrien - (2,4,6) - al - (1) is prepared by hydrolysing the above octadiene-(4,6) under acid conditions. Specifications 753,559 and 753,560 are referred to.
Patent GB-1021163-A (GB)
Title: Computer
IPC: G07C3/14
Filed: 1964-05-07
Abstract: 1,021,163. Calculating apparatus: selective signalling. MONSANTO COMPANY. May 7, 1964 [June 3, 1963], No. 19063/64. Headings G4A and G4H.  In an arrangement for deciding whether the function x-ay falls outside a pair of threshold levels pulses 64, Fig. 3, representing x are applied to a two denominational counter 72, 88, pulses 60, representing y, are applied to a counter 54, and the resistance between two terminals 42, 46, which represents x-ay is used as one arm 34, Fig. 2, of a bridge having a meter-movement with two presettable contacts 100, 102 corresponding to the two threshold levels. The arrangement is said to be for use in a statistical quality control system in which testing of the items of a sample batch proceeds one-by-one concurrently with the plotting of a point 26, Fig. 1, representing the cumulative number of tests (abscissa) and failures (ordinate), and if this point ever falls above an upper line 22 the remainder of the batch is rejected while if it falls below a lower line 20 the remainder is accepted. The meter movement can control either an indicator or some other equipment.
Patent GB-478200-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: G01R13/20
Filed: 1936-07-10
Abstract: 478,200. Cathode-ray tubes. WESTINGHOUSE ELECTRIC & MANUFACTURING CO. July 10, 1936, No. 19136. Convention date, Aug. 24, 1935. [Class 37] [Also in Group XL] An image of uniform intensity is produced on the screen or photographic plate of a cathoderay oscillograph by varying the density or velocity of the rays in accordance with the rate of traverse of the beam across the screen &c., the signal &c. to be observed being applied across the tube deflecting means and a potential divider, the potential derived from the latter being rectified and the positive impulses applied to a control electrode in the tube through an electrical device the effective impedance of which varies inversely as the frequency of the pulsations, the magnitude of these pulsations being directly dependent on the rate of change of the varying electrical potential derived from the signal &c. under observation. The oscillograph 1, which is provided with the usual heated electron source 5, control electrodes 79 and deflecting plates 11, 13 may be furnished with an additional control electrode 19 which is disposed adjacent the source 5 and is negatively biassed from a battery 21. The voltage under observation is connected to the deflecting plates 13 and also to a potential divider 23, the centre point of which is earthed and on which variable tappings 27, 29 are provided which are also connected to the anodes 31, 33 of a full wave rectifier 35. The control electrode 19 is connected to the earthed filament of the rectifier 35 through a condenser 43 so that positive impulses are transmitted to the electrode 19, the magnitudes of which increase with increase in the frequency of the impulses. This frequency is the same as that of the wave under observation, so that when the rate of change of the voltage of this wave is high a larger positive potential is applied to the electrode 19 than when the rate of change is low and the density of the beam is thus dependent on the rate of change of the voltage under observation. The potential producing the constant intensity of the picture may be applied to a control electrode situated between the screen and the last set of deflecting plates in which case it serves to vary the velocity of the electrons. The Specification as open to inspection under Sect. 91 discloses also the use of a transformer in place of the condenser 43, the primary of which is connected between the filament 37 and the ground while the secondary is connected in place of the resistance 41. The brightness of the picture obtained may be rendered uniform by increasing the intensity of certain parts and decreasing it in others, in which case both positive and negative potentials are applied to the electrode 19, the rectifier 35 then being omitted and the wave under observation being suitably applied to give the variations desired. This subject-matter does not appear in the Specification as accepted.
Patent GB-974664-A (GB)
Title: Improvements in or relating to valves for controlling fluid flow
Inventor: HARTE RALPH JAMES
IPC: G05D7/01
Filed: 1961-05-26
Abstract: 974,664. Valves. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 22, 1962 [May 26, 1961], No. 19191/61. Heading F2V. [Also in Division G1] A fluid flow control valve 1 has a closure member 6 operatively connected to a thermally expansible member 17 through a lever 3, and further comprises variable electrical induction means whereby the expansible member can be heated to effect opening or closing of the valve, the heating of the expansible member resulting from its electrical resistance to the induced current. The closure member 6 of polythene controls flow between an inlet 9 and outlet 10, the diaphragm being spring-urged away from a seat 8 and closed through a pressure pad 13 carried by the lever. The member 17 is adjustably carried from a fixed casing 2 and has a waisted portion forming part of a singleturn secondary of a heating transformer 22. The valve may control the flow of gas to a mass spectrometer. It is stated that this flow may be automatically controlled by feeding back part of the output from the spectrometer to electronic apparatus for controlling the primary current of the transformer.
Patent GB-256774-A (GB)
Title: Improvements in door furniture
IPC: E05B3/06
Filed: 1925-07-29
Abstract: 256,774. Noirit, A. July 29, 1925. Knobs, attaching. - Cast-iron knobs are formed with a shouldered shank which is passed through an attaching plate and secured by a split ring and spring washer. The knob 1 has a shank 3 with a shoulder 2 and recess 5 and is fitted into the plate 8. The split ring 6 is sprung into the recess and slackness is taken up by the spring washer 9.
Patent GB-232477-A (GB)
Title: Improvements in glazing bars
IPC: E04D3/14
Filed: 1924-08-13
Abstract: 232,477. Ellis, H. F. Aug. 13, 1924. Glazing roofs and windows.-An astragal or glazing bar is composed of a support A having a flat upper surface covered by a sheath of copper, zinc &c. B provided with drainage channels g on both sides and has screwed thereto a separate ridge-piece C which may have extensions bearing on the glass.
Patent GB-153106-A (GB)
Title: Improvements in and relating to picture frames
IPC: A47G1/14
Filed: 1919-08-06
Abstract: 153,106. Moore, S. S. Aug. 6, 1919. Picture frames.-Relates to picture frames made from a blank 10 of cardboard scored and folded on lines about its edges to provide a perpendicular wall on each of its sides and an inclined wall projecting inwardly from each of the side walls and lying within the area of the blank, means being provided for securing the walls in position, and ornamental paper 19 extending around the inclined walls over the edges of the frame and under the picture 20. According to the invention, the meeting ends of the inclined walls are secured by staples 17 or similar devices.
Patent GB-515772-A (GB)
Title: Improvements in heavy oil carburettors for internal combustion engines
IPC: F02M1/00
Filed: 1938-06-30
Abstract: 515,772. Spray carburetters. GLADWELL, A. W. D. June 30, 1938, No. 19426. [Class 7 (iii)] In a heavy oil carburetter, the oil is emulsified with air previously heated to a temperature above the initial boiling point of the fuel, the emulsified fuel is sprayed in conjunction with a further supply of similarly heated air to convert the oil to a drv hydro-carbon vapour and the sprayed product is diluted and cooled by adding air heated to a temperature lower than that of the first mentioned air supplies. A float chamber 14 is supplied with light or heavy fuel, according to the setting of a cock 32 and comprises a float 26 guided on a stud 27 which secures the cover 28 of the chamber to the body. Fuel flows from the chamber 14 through a duct 40 to the interior of a plug 22 communicating through a calibrated orifice 41 with a well 47 supplying an inner tube 48 of an inclined fuel nozzle, this tube having at its outer end a collar 55 formed with a grooved conical upper surface adapted to be engaged by an inturned flange 57 on an outer tube 53 screwed into a boss 51 on the carburetter body. Air, heated strongly by passage through a coil disposed in the exhaust pipe as described in Specification 430,518, is fed to a vertical passage 72 in the carburetter body whence, during idling it traverses passages 73, 68, 69 to idling outlets 70, 71 adjacent the throttle valve 17. During normal working, the hot air from the passage 73 flows through a passage 67, to a plug member 42 having an axial bore 64 terminating in an idling nozzle 45, the bore serving during idling for the passage of fuel and during normal working for the passage of the hot air which traverses an extension 46, screwed on the plug, to reach the well 47 where it emulsifies the fuel flowing to the inner tube 48. A further supply of emulsifying air reaches the fuel through a passage 75 branching from the passage 72 and leading to a space around the plug 42, the space communicating through grooves 76, in the surface of the extension member 46, with the fuel well 47. At its lower end the passage 72 communicates through a passage 80 with the open lower end of the outer nozzle tube 53, to permit the hot air to flow up the tube and through the grooves in the collar 55 to mix with and aspirate the fuel-air emulsion traversing the inner tube 48. The nozzle tubes 48, 53 project into a choke tube 12 having inclined flutes housing balls 21 as described in Specification 450,495, and the rich mixture issuing therefrom is diluted by a main air supply heated by passage through a chamber surrounding the exhaust pipe as described in Specification 430,518. Specifications 451,726 and 457,669 also are referred to.
Patent GB-710115-A (GB)
Title: Improvements in and relating to photographic roll film cameras
IPC: G03B17/30
Filed: 1951-08-17
Abstract: 710,115. Photographic roll-film cameras. VOIGTLANDER AKT.-GES. Aug. 17, 1951 [Aug. 23, 1950], No. 19451/51. Class 98(1) In a photographic roll-film camera, an operating member for winding the film and an operating member for focusing and/or adjusting the rangefinder are co-axially arranged and adapted to be operated at a single place on the camera. The members may be co-axial with one of the film spools, preferably the take-up spool. As shown, the operating members are housed in a cover 2 of a camera body 1. A sleeve 14 is rotatable on a sleeve 13 formed fast with the camera body, and has a knob 16 fastened thereto. Sleeve 14 has cams 2'1, 22 formed thereon, which operate, through mechanism not shown in detail, the focusing means and the range-finder respectively. A hollow shaft 5 is mounted for rotation without axial movement in the fixed sleeve 13, and engages the film take-up spool 3. A shaft 6 within the hollow shaft 5 has a pin 8 engaging a longitudinal. slot 7 in shaft 5, limiting the sliding movement of shaft 6, which is urged outwards by a spring 9 and has a knob 10 at its outer end. Knob 10 can be pressed into a recess in knob 16 and held therein by a bolt 12, which slides in a bore in knob 16 and is spring-urged into engagement with a peripheral groove 11 in knob 10. The bolt can be slid back by means of a button 19 to release knob 10 which then moves out under action of spring 9 for operation of the film wind. In a modification, shaft 5 and 6 are replaced by a single axially immovable shaft, and knob 10 is permanently recessed in knob 16. A bow-shaped key is pivoted to knob 10 and spring-urged to swing outward, but is normally held in the recess by a bolt slidable in knob 10 and slidable by means of a button.
Patent GB-256638-A (GB)
Title: Improved manufacture of sulphur
IPC: C01B17/02
Filed: 1926-08-06
Abstract: 256,638. Still, C., (Assignees of Ges. f³r Hohlentechnik). Aug. 6, 1925, [Convention. date]. Purifier ivaste, revivefying.-A part of the waste is mixed with sulphur containing materials, such as crude pyrites separated during coal washing, and roasted in a rotary furnace 1. The residue is continuously discharged through an outlet 5 and is mainly iron oxide which can be used again as purifying material for coal gas. The sulphur dioxide passes through a dust. catcher 7 and a tubular cooler 10 to a packed tower 15 in which it is combined with ammonia introduced as an aqueous solution. The ammonium sulphite after treatment is used in a container for dissolving sulphur from another part of the waste whereby ammonium thiosulphite is formed in solution, and an iron-containing residue is obtained for further gas purification. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use as starting material of the sulphur containing material produced in the process of gas purification set forth in Specification 271,805. This subject-matter does not appear in the Specification as accepted.
Patent GB-902995-A (GB)
Title: Improved apparatus and process for producing building boards
IPC: B27N3/14
Filed: 1961-05-30
Abstract: Light building panels are made by mixing wood wool with a bonding agent, feeding the material by a conveyer belt on to a weighing device from which it is distributed to continuously moving moulds, the speed of which is governed by the weighing device according to the weight of material, the material being concentrated at opposite sides of the mould.  The material is then passed under a rotating cylinder formed with projecting spikes which comb the surface of the material in the moulds, and finally compressed between rollers and severed into panels.  The means for effecting concentration of the material at opposite sides of the mould may be a shaped deflecting mem <PICT:0902995/IV(a)/1> <PICT:0902995/IV(a)/2> <PICT:0902995/IV(a)/3> ber against which the material is strewn by a distributer device, or it may be a pair of rotating cylinders.  The moulds comprise a flat baseplate bordered by upstanding rim members.
Patent GB-596564-A (GB)
Title: Process and products relating to rubber-like co-polymers
IPC: C08F36/04
Filed: 1945-07-30
Abstract: Rubber-like copolymers are produced by copolymerizing 80 to 99.9, preferably 95-99.9, parts of a branched chain 1.3-hexadiene having a straight chain of 5 carbons with 0.1 to 20 parts of an aromatic olefine.  Preferably, a mixture of 2- and 4-methyl-1.3-pentadienes is copolymerized with styrene or a -methyl styrene.  Also specified are 3-methyl-1.3-pentadiene and vinyl naphthalene and divinyl benzene. Nitroand halogen-substituted aromatic olefines may also be used. Copolymerization is preferably effected with a Friedel-Crafts catalyst at a temperature below -50 DEG  C., but may be carried out in any manner including aqueous emulsion using per-compounds as catalysts at between 40 DEG  and 60 DEG  C. and diazoaminoaryl compounds at above 75 DEG  C.  When a Friedel-Crafts catalyst is employed, the process is carried out under anhydrous conditions and the reactants copolymerized in bulk or in the presence of solvents for both monomers and copolymer.  Preferred solvents are ethane, propane, butanes, pentanes, ethylene, propylene, butylenes, pentylenes, butadiene, isoprene and methyl, ethyl and propyl chlorides.  After separation the copolymer may be purified by boiling with caustic alkali.  The copolymers may be compounded with plasticisers, tackifiers, anti-oxidants, fillers, pigments, dyes, stabilizers, lubricants, thickening agents, natural gums and resins, other synthetic resins, natural, synthetic and reclaimed rubber, solvents, oils, greases and waxes.  Vulcanizable compositions may be obtained by addition of vulcanizing agents and accelerators.  The rubber-like copolymers and compositions containing them may be used for the production of moulded articles, sheets, rods, tubes, coatings and adhesives, e.g. pressure-sensitive adhesives, and as additives for lubricating oils and compositions and hydraulic fluids.  The copolymers may also be hydrogenated, hydrochlorinated, sulphonated, sulphurized and cyclised.  Specification 569,071 is referred to.
Patent GB-925461-A (GB)
Title: Improvements in and relating to storage apparatus
IPC: E04H6/18
Filed: 1958-06-18
Abstract: 925,461. Mechanical garages. O. POPPER. May 27, 1959 [June 18, 1958; Oct. 24, 1958], Nos. 19563/58 and 34190/58. Class 78 (4). Two columns 12, 13 of storage crates form a mechanised storage garage, Fig. 1, in which each crate can move in a step-by-step rectangular path through a loading point 56 and between the columns. The weight of each column is supported by a raising or lowering mechanism. As shown, racks 29 formed on the exterior faces of the crates 11, Fig. 4, are engaged by pinions 38, Fig. 5, for vertical movement, and by pinions 45, 51 for inter-column transfer. A flange 30, Fig. 5, along the width of upper frame member 22 of a lower crate engages a channel 32 of the crate above and interlocks the crates vertically but allows movement horizontally. Guards 54, 55 maintain the crates in vertical alignment. Vertical movement of the columns may charge a spring for operating the transfer mechanism. In the first Provisional Specification the crates are provided with lugs engaging vertically moving endless chains. The device may also be used in a kitchen cabinet.
Patent GB-463789-A (GB)
Title: Improvements relating to safety razor blade holders
IPC: B26B21/18
Filed: 1936-07-02
Abstract: 463,789. Safety razors. WILLIAMS & CO. (WISHAW), 1922, Ltd., J., and FIRNEBURG, W. July 2, 1936, No. 19564/35. [Class 30] The guard f, g, is slightly resilient so that when the blade is clamped between it and the end cap a it is held fast near the cutting edges and chattering of the latter is prevented. A longitudinal channel i is formed at the centre.
Patent GB-737521-A (GB)
Title: Improvements in and relating to liquid fuel heating appliances
Inventor: MILLINGEN REUEL DUNCAN VAN
IPC: F02C7/224
Filed: 1953-07-15
Abstract: 737,521. Supplying liquid fuel to gas turbines. ENGLISH ELECTRIC CO., Ltd. July 9, 1954 [July 15, 1953], No. 19630/53. Class 110 (3). [Also in Groups XI and XXIX] In a liquid fuel supply system to the combustion chamber of a gas turbine plant the liquid fuel is heated in a steam jacket 4 or by an electric resistance and a small quantity of the heated fuel is branched off from the main flow to the burner 5 through a constant flow valve 7 insensitive to viscosity and then through a restriction in the form of a long coil 8 of small bore tubing back to the supply tank 1, the pressure before the restriction acting on a spring-biased piston 11 in a cylinder 9 to control the heating of the fuel in the sense of increasing the heating as the pressure increases. The piston 11 operates either, as shown, a valve 12 controlling the steam supply to the jacket 4 or a rheostat controlling the electrical heater for the fuel. The constant flow valve 7 comprises a chamber divided by a membrane 18 into inlet and outlet compartments which communicate through a conduit containing a sharp-edged orifice 19. Fuel from the heater is fed to the inlet compartment by a tube 13 having an obturator 20 which is attached to the membrane 18, whereby any increase in pressure in the inlet compartment deflects the membrane to close the tube 13. The membrane is biased by an adjustable spring 21 towards the open position of the obturator. The fuel is pumped from the tank by a pump 2 and passes to the burner through a throttle valve 14. In a modification the burner is a spill type and the burner output is controlled by a needle valve in the spill line and a pressure relief valve is shunted across the pump.
Patent GB-1028917-A (GB)
Title: Improvements relating to the curing of synthetic rubber
Inventor: TILLEY COLIN GEORGE
IPC: C08K5/45
Filed: 1963-05-17
Abstract: Curing agents of the general formula <FORM:1028917/C2/1> where R is a C1 to C22 alkyl group, cycloalkyl, aralkyl, aryl, or a substituted aryl group, are prepared by reacting an appropriate glycidyl ether with a methanolic solution of CS2 and KOH.  Specified aryl groups are phenyl and naphthyl groups and specified substituents on the aryl groups are alkoxy, chloro and alkyl groups.  Examples are given for the preparation of 4-(4-t.-butyl phenoxy methyl)-1 : 3-dithiolane - 2- thione, 4 - phenoxy methyl - 1 : 3 - dithiolone-2-thione and 4-t.-butoxy methyl1: 3-dithiolane-2-thione.  They may be used for curing of synthetic rubbers, particularly chlorinated elastomers (see Division C3).  Glycidyl ethers used as intermediates in the above process are prepared by reacting an alcohol or phenol with epichlorohydrin. Examples are given for the preparation of p-t.-butyl phenyl glycidyl ether, phenyl glycidyl ether and t.-butyl glycidyl ether.ALSO:A chlorinated elastomer mix incorporates as a curing agent an ether of the formula <FORM:1028917/C3/1> wherein R is a C1 to C22 alkyl group, cycloalkyl aralkyl, aryl or a substituted aryl group (see Division C2). Specified chlorinated elastomers are polychloroprenes and chlorobutyl rubbers. In examples, chlorobutyl rubber and polychloroprene are cured with various ethers of the above formula at 25 DEG  and 100 DEG  C. respectively.