baber/WOPTO huggingface dataset:
Patent GB-233237-A (GB)
Title: A device for facilitating the adding or carrying over of totals in book-keeping
Inventor: PLATT FRIEDRICH
Filed: 1924-10-18
Abstract: 233,237. Platt, F. Oct. 18, 1924. Writing tablets.-A device for facilitating the adding and carrying over of final totals in books with column systems comprises two parallel strip members a, b, Figs. 1 and 2, which are connected by pivots d, e respectively to a number of channel members c, Fig. 3, containing tablets g of frosted glass or the like, upon which the individual column totals are written when the device is arranged at the foot of the columns, as shown in Fig. 1, the strips a, b being held together by a clip at one or both ends. The device is secured in position by means of a backing strip f which is rivetted to the strip a and temporarily fastened to the book by gumming or other means. The tablets g are divided into four panels A, A<1>, B, B<1>, of which the panels A, A<1> are disposed at the foot of the debit columns, the panels B, B<1> being at the foot of the credit columns, so that if the number of columns on a page is greater than the number of corresponding panels A, B, the device can be moved along horizontally in order that the remaining debit and credit totals may be posted on the panels A<1>, B<1>. The device is detached from the book after the column totals have been posted, and, by moving the strips a, b relatively to each other, the channel members c with the tablets g are moved through 90, as shown in Fig. 2, to enable the column totals to be added together. The strips or bands a, b may be used as rulers.
Patent GB-1160761-A (GB)
Title: Device for Expanding a Metal Tube
Inventor: CLELAND DAVID BLACKHALL
IPC: F28F9/16
Filed: 1966-06-03
Abstract: 1,160,761. Welding by pressure; jointing by tube expanding; dividing. IMPERIAL CHEMICAL INDUSTRIES Ltd. 11 May, 1967 [3 June, 1966], No. 24855/66. Headings B3J, B3R, B3Q and B3W. [Also in Division F3] An explosive device for expanding and welding metal tubes into concentric apertures, e.g. tube-plates for heat exchangers, condensers or boilers comprises a body 11 of explosionpressure transmitting material, e.g. elastomeric material such as polyethylene provided with an axial bore 13 for accommodating the whole of the end of a detonator casing 16 containing explosive changes 17, and a sleeve member 15 slidable on the body 11 so as to surround but be spaced from any portion of the detonator casing extending beyond the bore 13 when the sleeve is positioned on the body member, a groove 14 being provided in the body 11 to permit electrical wires 18 to be led from the detonator. Additional explosive may be contained in the bore 13. The device is inserted into the end of a tube 19 which is to be expanded into an aperture 20 in a tube plate 21 such that the body 11 extends over a frustoconical portion 22 of the aperture but stops short of the internal face 23 of the plate 21. The sleeve 15 is a sliding fit in the tube 19. When the detonator is fired by the passage of a current through the wires 18 that portion of the tube 19 surrounding the body 11 is expanded and, if sufficient explosive is used, becomes welded to the tube-plate 21 at the frustoconical portion 22. That portion of the tube 19 extending beyond the body member 11 may be completely severed by the explosion, or may be subsequently trimmed.
Patent GB-460360-A (GB)
Title: Improvements in or relating to bed-settees
IPC: A47C17/22
Filed: 1936-09-14
Abstract: 460,360. Bed-settees. STEADFAST FURNITURE MANUFACTURING CO., Ltd., and WATSON, J. Sept. 14, 1936, No. 24966. [Class 52 (ii)] In a folding-mattress frame for bed-settees &c. of the kind comprising four sections 1 ... 4 hinged together, the inner section 1 being pivoted to the frame of the settee, the second and fourth sections 2, 4 are operatively connected by a link 9 which is connected by a second link 10 to one end of a lever 11 which is pivotally connected intermediate its ends at 12 to the second section 2 and pivoted at its other end 13 to the frame of the settee. The mattress frame is thus controlled during operation by these links and levers independently of any connection between the mattress frame and the seat 19.
Patent GB-664324-A (GB)
Title: Improvements in interpolymers
Filed: 1949-09-29
Abstract: Saturated copolymers are prepared by heating together at a temperature of 25 DEG  to 120 DEG  C. a monoethylenic 2-alkenyl ether and a monoethylenic ester of an alpha ethylenic carboxylic acid in the presence of a peroxidic catalyst.  Ethers specified are allyl methyl, methallyl ethyl, chlorallyl ethyl, methallyl methyl, methallyl benzyl, and allyl butyl ethers; esters specified are methyl and phenyl acrylates, methyl methacrylate, ethyl chloroacrylate, diethyl fumarate, dimethyl maleate, dimethyl and dihexyl itaconates, and the methyl and other alkyl esters of chloromaleic, citraconic, mesaconic, and aconitic acids. Peroxidic catalysts specified are hydrogen, acetyl, lauroyl, and succinyl peroxides, tert.-butyl hydroperoxide, peroxycarbonates, peroxyborates, and peroxysulphates. Copolymerization may be carried out in the presence or absence of solvents, diluents, emulsifying agents, and polymerization regulators such as methallyl chloride; the copolymers may be precipitated from solution with non-solvents, such as n-hexane, or from aqueous emulsion with electrolytes, and purified by extraction with solvents, and drying.  The products may be used as adhesives, for waterproofing, for the preparation of rods, blocks, sheets, films and tubes, and, in solution, as lacquers.  The copolymers may be after-treated by alcohol interchange with 2-alkenyl alcohols such as allyl, methallyl, ethallyl, 2-chloroallyl and crotyl alcohols by dissolving the copolymer in the 2-alkenyl alcohol and heating in the presence of an esterification catalyst such as sodium hydroxide or p-toluenesulphonic acid, and optionally a polymerization inhibitor such as copper or hydroquinone; the product is purified by dissolving it in a solvent such as acetone, and precipitating it with a non-solvent such as n-hexane. The products of this reaction may be converted to the insoluble, infusible state by heating in the presence of polymerization catalysts, or may be further copolymerized with monomers such as vinyl acetate, methyl acrylate, methyl and allyl methacrylates, diethyl and diallyl fumarates, and diallyl phthalate, producing copolymers which may be converted to the infusible state with the aid of heat and polymerization catalysts, such as benzoyl peroxide.
Patent GB-1299144-A (GB)
Title: Fluid operated motor
Inventor: CLARK RAYMOND
IPC: F01L25/06
Filed: 1971-04-19
Abstract: 1299144 Fluid operated motors APPLIED POWER INDUSTRIES Inc 19 April 1971 [24 March 1970] 25105/71 Heading F1M A fluid operated motor includes a cylindrical expansion chamber 14 having a piston 18 therein, the motor being provided with a motor control valve which has a housing 12 including a fluid inlet opening 50, a passageway 56 leading from the inlet to the expansion chamber and a cylindrical chamber 30 within the housing, the cylindrical chamber being connectible with the expansion chamber via a reciprocable poppet valve 32 movable from a closed to an open position by means responsive to a difference in pressures within the expansion chamber and at the inlet opening. A check-valve 5 is operable to close the inlet opening whenever the poppet valve is moved to its open position. The expansion chamber communicates with an exhaust port 62 when the poppet valve is opened. A throttling means T is provided in the passageway 56. The poppet valve 32 comprises an elastomeric grommet 70. As described the motor is operated by air-pressure.
Patent GB-1298704-A (GB)
Title: Folding panels
IPC: B65D1/22
Filed: 1970-05-26
Abstract: 1298704 Laminates SWISS ALUMINIUM Ltd 26 May 1970 [3 June 1969] 25216/70 Heading B5N [Also in Divisions B8 and E1] A panel constructed to fold about one or more folding lines and to be otherwise rigid comprises a hinge-forming part constituted by a laminate comprising a layer of thermoplastic resin with or without fabric reinforcement, with a metal layer on one or both surfaces, the hinge-forming part being devoid of metal along the folding line or each folding line. The thermoplastic layer may be of polyvinyl chloride, a polyamide, polypropylene or polyethylene and the metal layer may be of aluminium sheet. The thermoplastic layer may be of uniform thickness throughout the hingeforming part or may be reduced in thickness at the folding line by milling or squeezing the layer between two tools while in a thermoplastic state, to allow easy bending. The metal may be removed along the folding line or lines by milling. The panel may be composed wholly of the laminate except where the metal is absent along the folding line or lines, or the laminate may include two metal layers and form only the hinge forming part of the panel, the metal layers projecting beyond the thermoplastic layer to receive the edges of sheets, e.g. of metal or a rigid plastics material. The panel may be shaped to form a box with side walls joined to a base by the hinge-forming parts or may be a roll shutter with parallel hinge-forming parts.
Patent GB-207911-A (GB)
Title: Improvements relating to perambulators and the like
IPC: B62B9/18
Filed: 1922-09-18
Abstract: 207,911. Marmet Baby Carriage Syndicate, Ltd., and Morriss, E. T. Sept. 18, 1922. No Patent granted (Sealing fee not paid). Springs, arrangement of. - In a perambulator or like article in which the body is carried by two parallel symmetrical longitudinal members connected at their ends, by parts which may serve as handles, the longitudinal members d are insulated from the wheel axle c by rubber or other resilient material a which surrounds the axle and is mounted in a sleeve or socket b provided with means which embrace the longitudinal members and thereby secure the axle thereto. In addition to or in place of the resilient material around the axle, resilient material may surround the longitudinal frame member and the material may be made up of several rings or comprise a hollow annular member.
Patent GB-690444-A (GB)
Title: An improved appliance for making calculations relating to the power factor in an electrical installation
IPC: G06G1/14
Filed: 1950-10-18
Abstract: 690,444. Calculating apparatus. BOND, R. Oct. 18, 1951 [Oct. 18, 1950], No. 25348/50. Class 106 (i). A device for making. calculations relating to the power factor in an electrical installation comprises a squared chart, the axes of which carry scales of KW and RKVA and on which an arcuate power-factor scale h is marked, and an arm a pivoted about the origin o of the axes and carrying a scale of KVA. The chart and arm may be constructed of cardboard or celluloid, and the sheet may be weakened to be foldable along a line d-d. A second arm b similar to the arm a is preferably provided.
Patent GB-864278-A (GB)
Title: Improvements to flame tubes for gas turbine engines
Inventor: TOONE BRIAN
IPC: F23R3/10
Filed: 1958-08-07
Abstract: 864,278. Generating combustion products under pressure. ROLLS-ROYCE Ltd. July 24, 1959 [Aug. 7, 1958], No. 25424/58. Class 51 (1). A back plate 13 of a flame tube 10 for a gas turbine engine comprises a central aperture through which projects a fuel injection nozzle 15, an imperforate part 19 surrounding the central aperture, and a series of substantially radial teeth 20 separated by slots 21, both teeth and slots increasing in width from their inner to their outer ends. The back plate is frustoconical in shape with an included cone angle of 140 degrees and the cone angle of the teeth may be different from that of the imperforate part. The slots and teeth are raked away from the radial direction so that a line drawn radially from the centre of the back plate will cross at least part of a slot and part of a tooth. Air enters an outer casing 11, through an opening 12, flows past a fairing 26 which covers the fuel injection nozzle 15 and enters the flame tube for primary combustion through the slots 21. Further air to dilute the combustion gases enters through holes 23, 24 and 25. Specification 583,211 is referred to.
Patent GB-245701-A (GB)
Title: Improvements in or relating to vehicle wheels
IPC: B60B7/00
Filed: 1925-10-12
Abstract: 245,701. Candellero, A. Oct. 12, 1925. Wheels with non-supporting casings enclosing spokes.-For the protection of the spokes of a wheel near the hub, a coned disc 1, of the form shown, is threaded over the hub 3 and held in place against the spokes 4 by the hub cap 6; or, if the hub cap 6 is carried by an inner hub, the disc 1 is held in place by the same means as are used to mount the wheel. A rubber ring 5 is preferably fitted between the disc 1 and the roots of the spokes 4.
Patent GB-461311-A (GB)
Title: Detectable refilled bottle and closure means
IPC: B65D49/12
Filed: 1936-09-18
Abstract: 461,311. Non - refillable bottles. OLIVER, P. E. Sept. 18, 1936, No. 25461. Class 125 (i)] A non - refillable bottle has an inner cap 6 which cannot be removed without detection and an outer closure 2 for temporary use after a puncturable seal 4 is broken. The puncturable seal is retained in place by the cap 6 which is secured by a spring ring 7 engaging a groove 1<e> in the reduced neck of the bottle.
Patent GB-1351260-A (GB)
Title: Apparatus for regulating a hydraulic energy absorbing device
IPC: F16D57/02
Filed: 1971-04-19
Abstract: 1351260 Hydrodynamic brakes BORGS FABRIKS AB 19 April 1971 [11 May 1970] 25533/71 Heading F2E Apparatus for regulating the braking torque and energy absorption in an hydraulic energy absorbing device of the type in which liquid is pumped around a rotor and stator lattice, the rotor blades 4 being curved in a direction opposite to that in which the stator blades 5 are curved, comprises an axially movable capsule 7 arranged to enclose the rotor blades to an extent depending upon the axial position of the capsule, any part of the rotor blades enclosed by the capsule providing a through flow area, whereby the axial position of the capsule relative to the rotor blades controls the braking torque and energy absorption of the apparatus. As shown, a ring 9 is axially movable by guide rollers 10 thereon engaging an inclined groove 11, or a cam surface, on a rotatable ring 12, movement of the ring 9 imparting, through rods 8, axial movement to the capsule 7. The position of the capsule can be controlled, for example, during the arrester landing sequence of aircraft.
Patent GB-1047303-A (GB)
Title: Improvements relating to battery-charging apparatus
Inventor: CRUST TREVOR JAMES
IPC: H02J7/14
Filed: 1964-06-19
Abstract: 1,047,303. Charging batteries from variablespeed generators. J. STONE & CO. (DEPTFORD) Ltd. June 17, 1965 [June 19, 1964], No. 25539/64. Heading H2H. Battery-charging apparatus of the kind in which a battery 5 is charged by an A.C. generator 1 driven by a prime mover which can run at different speeds selectable by the main contacts (not shown) of a relay 9 comprises auxiliary contacts 10 on the relay which are operated such as to insert the resistance 11 into circuit when a high prime mover speed, and hence high generator voltage, is chosen so as to maintain the voltage applied to the battery approximately the same as that when a low prime mover speed is selected. Alternatively the battery voltage may be maintained by using the contacts 10 to control the saturation of a saturable reactor inserted into the circuit between the alternator 1 and the rectifier 6. The alternator may have a permanent magnet excitation and the system may be three phase.
Patent GB-814733-A (GB)
Title: Process for oxidizing aromatic compounds containing alkyl side chains
IPC: C07C51/275
Filed: 1955-09-07
Abstract: <PICT:0814733/III/1> An apparatus for oxidizing alkyl-substituted aromatic compounds (see Group IV (b)) with nitric acid and optionally oxygen, at elevated temperature and pressure, the heat of reaction being absorbed in evaporating water which is approximately at the reaction temperature and the steam produced being removed rapidly, is described by reference to the accompanying Figure. Nitric acid is pumped at 4 into the top of the connected pressure tubes 1, 2 and 3 and the aromatic compound is pumped in between the upper and middle tubes.  Waste gas escapes at the top of the apparatus through a reflux condenser and a pressure regulator 9. The product is withdrawn at 11 after passing through condenser 10.  Air or an inert gas may be blown in at 26.  The heating jackets of the pressure tubes contain an equilibrium mixture of water and steam at constant temperature, the heating water being brought to the reaction temperature by, for example, electrical or steam heating.  The upper ends of the heating jackets are connected together and to the upper part of boiler 17. From the bottom of the boiler the condensed water is led to the lower ends of the heating jackets.  The boiler is provided with a condenser 24 where steam is condensed thus controlling the pressure and the temperature.ALSO:Aromatic compounds containing one or more alkyl side chains are oxidized, by means of nitric acid and optionally oxygen at raised temperature and superatmospheric pressure, to oxidize the alkyl side chains and give carboxylic acids in a process wherein the heat generated by the reaction is absorbed in evaporating water which is approximately at the reaction temperature and the steam produced is removed rapidly (see Group III).  Specified aromatic compounds are toluene, chloro-, bromo- and nitro-toluenes, xylenes, chloro-, bromo- and nitro-xylenes, cresols, xylenols, thymol, toluene and pseudocumene sulphonic acids, mesitylene, pseudocumene, methyl-ethyl-benzenes, ethyl- and propyl-benzenes, cumene, cymenes and methyl-benzoic acids.  When oxygen is used in the oxidation it may be used alone or admixed with inert gases such as nitrogen, carbon dioxide, helium, neon or argon, air being preferred.  In examples: (1) orthochlorotoluene is oxidized to ortho-chlorobenzoic acid with nitric acid and air and the procedure compared with other known methods; (2) crude p-cymene is oxidized with nitric acid and air in the presence of manganese sulphate to terephthalic acid.
Patent GB-1513517-A (GB)
Title: Production of security papers
IPC: B41F13/02
Filed: 1976-06-21
Abstract: 1513517 Registering patterns in web-fed press MASCHINENFABKIK GOEBEL GmbH 21 June 1976 [28 June 1975] 25688/76 Heading B6C A rotary printing press which is intended for the printing of webs by two different methods for security purposes is characterised by a common impression cylinder 10 for an offset unit including a blanket cylinder 12 and an intaglio unit including a forme cylinder 13, a scanning device, e.g. a photocell 26, sensing regular water marks provided in the web 1 prior to printing, and a web pulling device comprising rollers 3 and by exerting a variable tensile form on the web in response to the sensed marks. Thus, by altering the tensile force exerted, the elongation of the web can be changed to maintain the spacing of the marks prior to printing, preferably this is controlled through device 28 measuring the angular position of a forme cylinder 20, a regulator or comparator 9 and gearing 6 for the drive 5 to rollers 34. A further roller 31 may adjustably influence the elongation of the web 29 in its rim before the impression cylinder 10. A drying device 30 may act between the two impressions.
Patent GB-187931-A (GB)
Title: Improvements in electrical heating elements
IPC: H05B3/16
Filed: 1919-07-30
Abstract: 187,931. Belling, C. R., and Smith, C. H. July 30, 1919. Electric radiators.-The resistance coils f of electric heaters such as radiators are supported by porcelain or fireclay bridges e, which are dropped into slots .formed in the sides of the container d, and are readily removable therefrom. The coiis f may pass through apertures or undercut slots g in the bridges e. One end k of each of the bridges e is shaped as shown to fit into a shallow slot, the other end n fitting a deep slot. A wire p passes through holes in the bridges to secure these in position. The end bridges h are provided with countersunk holes, or holes in a set-in panel as shown, through which the coils f are passed. The container d, which may beof aluminium, is polished internally to form a reflector. Specification 153,368 is referred to.
Patent GB-812950-A (GB)
Title: Improvements relating to displacement measuring devices
Inventor: CAIL ROLAND ALLAN
IPC: G01D5/38
Filed: 1954-09-07
Abstract: 812,950. Discharge tube circuits. ELECTRIC & MUSICAL INDUSTRIES Ltd. Aug. 12, 1955 [Sept. 7, 1954], No. 25877/54. Class 40 (6). [Also in Group XL (b)] To detect the extent of relative movement of diffraction gratings which cause a pair of photocells to produce waveforms 3a, 3b, these waveforms are applied to the grids of valves 11, 22 and 12, 23 respectively. Valves 11 and 12 form a bi-stable circuit with the screen grids and control grids cross-connected to form an " inner triode. This bi-stable circuit is switched in succession between alternate states the peaks in waveform (a) causing valve 11 to conduct and those in waveform (b) valve 12. Across a common cathode resistor 24 of valves 22, 23 is derived a waveform as shown in Fig. 3 (c) the peaks of which occur between those of (a) and (b). This waveform is applied simultaneously to the suppressor grid of valves 11 and 12 in which anode current flows only when the potential applied to the suppressor exceeds the threshold indicated by the dotted line 33. Therefore anode current flows only in valve 11 and output pulses appear at terminal 31 and are counted whereas if waveform (b) precedes waveform (a) valve 12 alone conducts.
Patent GB-927493-A (GB)
Title: Improvements in or relating to methods of forming junctions in a semi-conductor
Inventor: KNIGHT COLIN WILLIAM TENNANT
IPC: H01L21/00
Filed: 1960-07-25
Abstract: 927,493. Semi-conductor junctions. GENERAL ELECTRIC CO. Ltd. July 24, 1961 [July 25, 1960], No. 25882/60. Class 37. In a method of forming PN junctions in a semi-conductor device the semi-conductor is alloyed with a material comprising an alloy which is predominantly of an element which does not act with the semi-conductor as a significant impurity together with minor proportions both of an element acting as a donor and an element acting as an acceptor, the concentrations of these significant impurity elements and the variations with temperature of the distribution coefficients of these elements being such that, during cooling, regions of the semiconductor of different conductivity types are successively deposited. In the PNPN switching diode of the described embodiment a wafer of N-type silicon 1.1 mm. square and 0.2 mm. thick is sandwiched between two discs each 0.5 mm. diameter and 0.3 mm. thick. One disc being an alloy of 98.385 atomic per cent silver, 1.6% gallium and 0.015% arsenic and the other disc being 98.67 atomic per cent silver and 1.33% gallium. The device is then heated to 1150‹ C. and cooled to room temperature at a rate of 4 ‹ C. per minute. On heating the discs alloy with the semi-conductor then, as the device is cooled, due to the different distribution coefficients of the gallium and arsenic in the alloy containing both these impurities, first a layer of material containing a preponderance of gallium is deposited to form a P-type layer, then a layer of material containing a preponderance of arsenic to form an N-type layer and finally the remainder of the alloy which is predominantly silver and forms a good ohmic connection to the N-type region. On the other side of the device a P-type region containing a preponderance of gallium is deposited followed by the remainder of the alloy to form the ohmic connection. After the attachment of leads to the electrodes the device is cleaned and encapsulated.