baber/WOPTO huggingface dataset:
Patent GB-687675-A (GB)
Title: Improvements in and relating to the conditioning and filtration of water and other liquids
IPC: C02F1/52
Filed: 1950-09-19
Abstract: 687,675. Purifying water; gravity sand filters; gravity-separation apparatus. HILL, F. G. Sept. 19, 1950, No. 23003/50. Addition to 675,322. Class 46 The plant of the parent Specification is modified by providing a localized lower cut-away portion in the laterals or distributing conduits to enable liquid to pass substantially freely upward into them. The laterals may alternate with or be replaced by pipes formed of non-corrodible material. One, or more of the flocculating, clarifying and filtering sections of the plant is provided with a downflow compartment the lower end of which corresponds to the cutaway portion of the distributing conduits. Water passes into theclarifier section 2, Fig. 4, along an inlet channel 10 communicating with cutaway portions 5a, 6a in concrete laterals 5 and pipes 6 respectively, Fig. 11, to flow into and along the laterals and pipes and. out again through longitudinal series of openings into the main part of the section on either side of the channel 10. It flows out by channels 15 which join to form the inlet channel 17 of the filter section 3, Fig. 5, where the same kind of flow takes place, the water eventually rising between laterals 18 and grid pipes 19 and 21, Fig. 7. The pipes 119 are formed in pairs, Fig. 9, with the small pipe 21 forming narrow spaces, with adjacent pipes of each pair to support the filter medium, and are joined by transverse conduits 19b having fixing holes 19c. Water may be passed down pipes 24, Fig. 5, into one or more pairs of pipes 19 connected in parallel and out through holes provided in the lower walls of the pipes 19 for localized backwashing. The wash water may be mixed with air or replaced by steam or a liquid containing a sterilizing agent. For cleaning the whole filter section a wash water ;pipe 27 fitted with an aerator 27a is provided in the downflow channel 17. A portable cleaner 28, Fig. 13, having an aerator 29a in its down pipe 29 may be placed below the filtering medium and moved about while wash water or the like is supplied to the pipe 29, the cleaning being performed either while static water is above the medium or while a. backwash is in operation.
Patent GB-1024422-A (GB)
Title: Improvements in or relating to containers or closures therefor
Inventor: LESLIE IVAN ALEXANDER
IPC: F16J13/12
Filed: 1961-06-26
Abstract: 1,024,422. Pipe connections. JOSEPH SANKEY & SONS Ltd. June 22, 1962 [June 26, 1961], No. 23081/61. Heading F2G. In a closure unit for a beer barrel comprising a valve body 21 locatable in an aperture in the barrel 11 and having a passage 23 closable by a spring-loaded, tubular valve member 51, the passage through which is closable by a spring- loaded valve member 56, the dip tube 17 sealingly engages valve member 51 and locking means are provided between the closure unit and the barrel. In the embodiment shown, valve body 21 has bayonet members 28 which, when fitting it to the barrel, are inserted through clearances around the aperture and, on rotation of the valve body, engage cam surfaces 15 to compress a sealing ring 34 between the valve body and the barrel. To prevent disengagement, upwardly inclined spring plates 19, Fig. 4 (not shown), on the barrel enter recesses 33 in the closure unit flange 32. To remove the unit a tool is used to depress plates 19. Spring 153 bears against valve member 51 through the enlarged end 50 of dip tube 17 and is supported by a cup 43 attached to the closure unit by flanges 42 engaging the bayonet members 28. In other embodiments, bayonet members 28 engage bayonet slots in cup member 43, and locking springs 19 engage stop members on the underside of closure unit flange 32. The valve members 51 and 56 sealingly engage part-spherical seatings through O-rings located in grooves in the valve members.
Patent GB-598765-A (GB)
Title: Improvements in and relating to roadways, surfaces therefor and the manufacture thereof
Filed: 1945-09-10
Abstract: A floor or road covering or mat of rubber or similar substance incorporates material such as stones, flint, or granite pieces coated with a metal, e.g., brass, which is bondable with the rubber.  The coating may be applied by spraying molten metal or by dipping.  An outer layer without inclusions may be provided to protect the working surfaces of press or rolls used to form the product, and may be of poor quality rubber adapted to wear away quickly in use and expose inclusions.
Patent GB-1474825-A (GB)
Title: Temperature stabilization of surface acoustic wave substrates
IPC: H03H9/30
Filed: 1975-05-28
Abstract: 1474825 Surface acoustic wave devices MOTOROLA Inc 28 May 1975 [2 July 1974] 23245/75 Heading H3U The piezoelectric substrate 20 of a surface acoustic wave device is bonded to a composite laminate structure 21 so as to stabilize the device against temperature variations. The structure 21 comprises laminµ composed of unidirectional graphite fibres 22 embedded in a heat resistant epoxy matrix 23, and restricts expansion of substrate 20 along the direction of wave propagation so as to provide a substantially zero temperature coefficient of delay over a particular temperature range. The laminµ are anisotropic and may match the thermal expansion characteristics of substrate 20 along an axis perpendicular to the propagation axis.
Patent GB-249028-A (GB)
Title: Improvements in and relating to otter trawling gear
IPC: A01K73/02
Filed: 1925-09-18
Abstract: 249,028. Purdy, G. R. Sept. 18, 1925. Trawling-gear.-Two or more trawl boards e - - h are provided on each towing warp b; one board e of smaller size than the other may be attached to the wing of the net. Specifications 3732/97, 243,913, and 244,599 are referred to.
Patent GB-356895-A (GB)
Title: Improvements relating to photo-electric cells
IPC: H01J40/06
Filed: 1930-08-05
Abstract: 356,895. Photo-electric cells. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Aug. 5, 1930, No. 23421. Convention date, Feb. 26. Addition to 319,650, [Class 39 (i), Electric lamps, Arc &c.]. [Class 39 (i).] The photo-electric cell described in the parent Specification is modified by rendering monomolecular the chemical compound which supports the photoelectric substance, such as an alkali metal, upon the electrode. In one form, Fig. 1, the inner wall of the cell is coated for the greater part of its area with a thin metal layer 7 which may consist of silver formed as a metallic mirror applied in known manner, after which a quantity of a halogen element or of a hydrogen, halide, such as chlorine or hydrochloric acid, is introduced, for example through a tube 9, a mono-molecular layer of the introduced substance being adsorbed by the layer 7. The superfluous gas is subsequently removed, and the photo-electric substance, which may consist of an alkali metal such as caesium, is introduced, for example by vaporizing the substance from a vessel connected to the tube 9. In contact with the adsorbed halogen or hydrogen halide the photo-electric material acts to form a mono-molecular hnlide layer and, by introducing an excess of the photo-elcctric metal a thin layer of it will be partly adsorbed, this action being facilitated by exhausting and simultaneously heating to about 200‹ C. Instead of an alkali metal an alkaline earth metal such as calcium may be introduced to act on the adsorbed halogen or hydrogen halide layer. In another form, the mono-molecular layer may be obtained by introducing sulphur, hydrogen sulphide, or a volatile sulphur halogen compound, such as sulphur chloride or a thionvl chloride, for adsorbtion by the metal layer 7. The mono-molecular layer carrying the photo-electric metal may also consist of alkali metal oxide, a quantity of water vapour being introduced into the cell on to a layer of silver, followed by an excess of alkali metal, such as caesium, the reaction being facilitated by gentle heating and the removal of the evolved hydrogen. A layer of caesium oxide is formed and partly adsorbs some of the excess caesium, the remainder of which is removed. The cells may be highly exhausted or filled with a rare gas or a mixture of rare gases such as neon and argon. Specification 323,718, [Class 39 (i), Electric lamps, Arc &c.], is referred to.
Patent GB-1109685-A (GB)
Title: Crystalline polycarbonate fibres and films
IPC: C08K5/06
Filed: 1965-06-02
Abstract: Crystalline polycarbonate polymers are made from a dope of polycarbonate polymer having an inherent viscosity > 0.4 in a mixture of at least one solvent having b.p. < 100 DEG  C., at least one solvent having b.p. 100-250 DEG  C., and a stiffening agent; the solvents are evaporated successively.  The dope may be cast into a film or dry-spun into fibres.  The polycarbonate may contain residues of at least one aromatic dihydroxy compound.  The stiffening agent may be, e.g. polystyrene glycol or thioglycol; chlorinated aromatic polynuclear hydrocarbons containing 30-75% nuclear Cl; or saturated or unsaturated abietic acid esters or abietyl alcohols or esters thereof.  5-50% wt. stiffening agent may be used.
Patent GB-804904-A (GB)
Title: Improvements relating to apparatus employing servo-mechanism
Inventor: SPENCER ROLF EDMUND
IPC: G06G7/26
Filed: 1949-09-12
Abstract: 804,904. Transformer tap-changing. ELECTRIC & MUSICAL INDUSTRIES Ltd. Sept. 5, 1950 [Sept. 12, 1949], No. 23515/49. Class 38 (2). [Also in Groups XXXVI and XXXVIII] When a moving contact 133 is in contact with one of the end tappings of two similar windings 126, 127, the adjacent end turns of the two windings are connected through a second moving contact 134. Specification 734,829, [Group XXXVI], is referred to.
Patent GB-770776-A (GB)
Title: Improvements relating to stranding machines
IPC: D07B7/06
Filed: 1954-08-13
Abstract: 770,776. Bobbin mountings. HANSON & EDWARDS, Ltd., and BATE, E. Aug. 10. 1955 [Aug. 13, 1954], No. 23543/54. Class 109. A stranding-machine in which bobbins are supported in a rotatable tubular frame is provided with a bobbin carrier having trunnions to receive the ends of a bobbin-carrying spindle, the trunnions being shaped to interlock with a locking catch. The bobbin carrier 1 has two trunnions 6 located axially by pegs 8 that bear in annular grooves. One trunnion 6 has a semicircular projection 27 beneath which a catch 11 is slidable under the control of a spring 12. The flat ends 13 of a spindle pass into slots 10 in the trunnions and when the spindle is given a partial rotation, the catch 11 is released by the projection 27 turning away from an abutment portion of the catch. The abutment portion then moves under the projection making it impossible to turn the trunnion back. A plate 16 carried on the spindle has a pin 17 which passes, when the plate 16 is manually turned, in to a slot 18, where the pin is locked by the catch 11. Behind the plate 16 is carried a ring freely rotatable on the spindle but coupled to the bobbin 15 by a peg. A brake-block mounted on the plate 16 is pressed against the ring to brake the bobbin 15.
Patent GB-615802-A (GB)
Title: Improvements in or relating to the manufacture of heat-hardening coating compositions
IPC: C09D161/24
Filed: 1946-08-08
Abstract: Heat-hardening coating compositions comprise a urea- or polyazine-formaldehyde condensation product and an interpolymer of an aromatic vinyl hydrocarbon with one or more partially polymerized polyhydric alcoholic mixed esters.  If desired, the interpolymer may be prepared in a solvent comprising a terpene, e.g. a mono- or dicyclic a -terpene, or a terpene may be added continuously or intermittently to the reaction mixture during the interpolymerization.  The terpene may be used alone or with solvents such as white spirit or xylol.  Specified formaldehyde condensation products are those with urea, thiourea and melamine. Styrene is the preferred vinyl hydrocarbon.  The mixed esters are formed from polyhydric alcohols, e.g. glycerol, pentaerythritol, mannitol, sorbitol and the fatty acids of drying oils, natural resin acids, e.g. rosin, copal, and polybasic acids or their anhydrides, e.g. maleic, phthalic acids.  Alkyd resins obtained by condensation of one or more polyhydric alcohols, polybasic organic acids and a mixture of the unsaturated fatty acids may also be used.  Preferably a proportion of the acid radicals are conjugated triene acid radicals, e.g. the mixed ester may be heat-treated tung or oiticica oils, or the esters of licanic or claeostearic acids or of the acids obtained by blowing linseed oil or its fatty acids.  The interpolymerization of styrene and the partially polymerized mixed ester may be carried out in solution or aqueous emulsion.  The formaldehyde condensation product preferably forms 5-40 per cent of the solids of the composition.  Solvents e.g. xylene, pigments and extenders may be added to form paints and stoving enamels.  Specifications 455,008, 466,096, 483,399, 557,364, 573,809, 573,835, 580,912 and 609,750 are referred to.
Patent GB-486274-A (GB)
Title: Improvements in or relating to lamps for illuminating objects to be photographed
IPC: G03B15/06
Filed: 1937-08-28
Abstract: 486,274. Lamps for illuminating objects to be photographed. SCHMECK, P. Aug. 28, 1937, No. 23599. Convention date, Sept. 25, 1936. [Class 75 (ii)] In a lamp for illuminating an object to be photographed, a part only of the reflector is coated with colour and adjustable means are provided so that in addition to the colour-coated portion of the reflector another uncoloured portion of the reflector can be utilized. In the form shown, the reflector 3 is provided with a central coloured coating 9 and its periphery is left uncoloured, but the reverse arrangement may be employed. The light source 5 is carried by a second smaller reflector 4 which is adjustable towards and away from the reflector 3 and may be rotated through 180‹. Alternatively, the reflector 3 may consist of two superposed and relatively rotatable parts of the same curvature, the front part having sector shaped apertures and the rear part having corresponding colour sectors.
Patent GB-857575-A (GB)
Title: Carburettor system for internal combustion two-stroke engines
IPC: F02B61/02
Filed: 1959-07-09
Abstract: 857,575. Carburetters; intake silencers; cooling cylinders. PIAGGIO & C. S.p.A. July 9, 1959 [Aug. 14, 1958], No. 23661/59. Classes 7(2) and 7(3). In a carburetter installation for a two-stroke engine of the type including a crank case 6 forming the scavenging pump, the carburetter 1 is secured to the crank case directly over and in direct registry with the crank case and opening directly into the inlet port 7 provided at the inner periphery of the crank case while the carburetter is enclosed inside a protecting box or casing 3 forming a support and serving also as a cover for the purifying filter 2, as a casing for the air valve 16 and for the ends of the control cables and lastly as the main section of the inlet silencer. Air jets may be provided which act in a direction opposite to that of the spray nozzles. In aircooled engines and in particular in those provided with forced cooling incorporating a fan and air inlet guiding means, the direct fitting of the carburetter on the crank case uncovers the area of the cylinder corresponding to the input side which facilitates the mounting of a complete set of fins on the cylinder with a free flow of the cooling air stream.
Patent GB-694837-A (GB)
Title: Improvements in or relating to automatic disc changing devices
IPC: G11B17/16
Filed: 1951-10-11
Abstract: 694,837. Magazine gramophones. PAILLIARD SOC. ANON. Oct. 11, 1951 [Nov. 10, 1950], No. 23668/51. Class 40 (ii). In gramophones wherein the discs are stacked around a vertical spindle 2 and 3 which has a shoulder 4 supporting the lowest disc of the pile, and wherein the lowest disc is moved sideways by a pawl 6 to enable it to fall on the turntable, the pawl 6 has, on the side opposite to its lateral pushing surface, a shoulder 24 which, in the position of rest, supports the lower record at the same height as the shoulder 4. An actuating rod 13 effects the movement of pawl 6 through pins 7 and 14 and cam slots 11 and 15, and when the lowest record is released the remainder of the pile rests on the corner 23 of the pawl and is slowly lowered on to shoulder 4. The pawl then swings to the right and inserts its supporting shoulder 24 under the pile.
Patent GB-1379013-A (GB)
Title: Cosmetics containing saturated branched synthetic higher hydrocarbon
IPC: A61K8/31
Filed: 1973-05-18
Abstract: 1379013 Alkyl bromides and chlorides SHISEIDO CO Ltd 18 May 1973 [6 Oct 1972] 23829/73 Heading C2C [Also in Divisions C5 and A5] 2 - Ethylhexyl bromide; 5,7,7 - trimethyl- 2 - (1,3,3 - trimethyl - butyl)octyl bromide; 2-hexyldecyl bromide and 2-octyldecyl bromide are prepared by reacting the corresponding alcohol with hydrobromic acid. 2-Hexyldecyl chloride is prepared by reacting 2-hexyldecanol and thionyl chloride.
Patent GB-429581-A (GB)
Title: Improvements in electro-magnetic driving devices for clockworks or similar mechanisms
IPC: G04C3/06
Filed: 1933-08-28
Abstract: 429,581. Clocks and watches. WEINBERG, M., 10, Rue St.-Marc, Paris. Aug. 28, 1933, No. 23852. Void [Abridged as open to inspection under Sect. 91 of the Acts, Feb. 28, 1934]. [Class 139] [See also Groups XXXV and XXXVI] A motor for driving a clock or watch comprises an oscillating spindle 1 carrying a magnetized disc 5 projecting into two flat solenoids 6, 7, the circuits of which are interrupted by the oscillations of the spindle. The circuit includes the spindle and a lever 15, the end of which engages a pin 14 on the spindle. The end of the lever 15 is provided with an insulating plate 18, so that the circuit is only complete when the pin 14 touches the lever on the right-hand side. The motion of the lever 15 is controlled by a hair-spring 19 and is transmitted to the clock by a spring pawl 21 and ratchet 23. The spindle under the action of the solenoids moves the lever 15 to the left until the pin 14 clears the end of the lever, which is then returned by the spring 19 ; the circuit being thus broken the spindle 1 is returned by a spring 12 and the cycle recommences.
Patent GB-1465143-A (GB)
Title: Bromine-containing telomeric phosphonic acid esters
IPC: C08L51/02
Filed: 1974-05-30
Abstract: 1465143 Telomeric brominated phosphonates: flame retardants HOECHST AG 30 May 1974 [13 June 1973] 23946/74 Heading C3P [Also in Division C2] Telomeric phosphonate esters (I) of the formula wherein R is C 1 -C 3  alkyl, R 1 , R 2 , R 3  and R 4  are H, halogen or C 1 -C 4  alkyl and n is an integer from 2 to 30 are flame-retardant additives for thermoplastic materials. The bromine-containing ester (I) is prepared by bromination of the corresponding unsaturated telomeric phosphonic acid prepared by reacting diethyl phosphite and a conjugated diene in the presence of di-tert.-butyl peroxide.
Patent GB-278515-A (GB)
Title: Improvements relating to adjustable stands or supports for shop window display and like use
IPC: A47F5/12
Filed: 1926-09-29
Abstract: 278,515. Pool, N. C., and Whittall, W. G. Sept. 29, 1926. Stand heads.-The head 12 of a stand is connected to the pedestal 7 by a ball-andsocket joint consisting of a hemispherical socket 8 carried by the pedestal, a loose hemispherical socket 9 which is tightened on the ball 11 by an internally screwed collar 10, the ball carrying a stem 11<a> to which various heads may be removably secured. The socket 9 is gapped to permit movement of the stem 11<a> which may be screwed into the ball or may be a part of the head to engage with a plain bore in, the ball.
Patent GB-1127345-A (GB)
Title: Process for producing halogenated methanes
IPC: C07C17/20
Filed: 1966-05-31
Abstract: 1,127,345. Halogenated methanes. SUMITOMO CHEMICAL CO. Ltd. 31 May, 1966 [31 May, 1965], No. 24112/66. Heading C2C. A halogenated methane of the formula CH 2 BrX, in which X is a chlorine or bromine radical, is prepared by reacting a compound of formula CH 2 ClX with a bromide of formula MBr, in which M is an alkali metal or an ammonium radical, in an organic polar solvent at a temperature from 50‹ C. to just below the boiling-point of the solution. The preferred organic polar solvent is N,N-dimethyl formamide.
Patent GB-954965-A (GB)
Title: Improved process of extraction of hydroxy-cobalamine
IPC: C07H23/00
Filed: 1962-06-22
Abstract: Hydroxocobalamine is obtained by extracting liver with alcohol, removing alcohol from the extract, adding solid ammonium sulphate to the remaining extract in a proportion of 50 to 70 parts by weight of ammonium sulphate per 100 parts by weight of water present in the extract, heating to dissolve the ammonium sulphate, cooling and filtering to obtain a cake of precipitated ammonium sulphate containing hydroxocobalamine, and recovering the hydroxocobalamine by dissolving the cake in water and adding acid to obtain a pH of 3.5 to 4 to free the hydroxocobalamine from complexes formed with aminoacids or proteins. The hydroxocobalamine may be extracted from the final solution with an organic solvent, e.g. acetone, which, due to the high content of ammonium sulphate, causes the formation of an aqueous layer containing the ammonium sulphate and an acetone layer containing the hydroxocobalamine. The hydroxocobalamine in the acetone layer may be purified by chromatographing over alumina, and then crystallized from acetone. An example is given.
Patent GB-517090-A (GB)
Title: Improvements relating to rails for use as fittings in commercial vehicles or for other purposes
IPC: B60R13/00
Filed: 1938-08-17
Abstract: 517,090. Hand-rails. WILMOT-BREEDEN. Ltd., and PATCH, A. W. B. Aug. 17, 1938, No. 24213. [Class 45] A rail for use in vehicles and for other purposes is constructed with a sheet metal casing a of channel form containing a piece or pieces b of wood, and a strip c of synthetic resin or like material at the open side of the casing the sides of which are shaped to retain the strip, The rail may be supported in brackets f in which it is secured by screws h, and the ends of the rail may abut closed ends of the brackets or be covered by caps d secured by screws e.
Patent GB-840126-A (GB)
Title: Improvements in and connected with earth leakage electric circuit breakers
IPC: H01T4/08
Filed: 1957-07-31
Abstract: 840,126. Automatic circuit-breakers. CRABTREE & CO. Ltd., J. A., and COLEMAN, E. July 3, 1958 [July 31, 1957], No. 24234/57. Class 38 (5). An earth-leakage circuit-breaker generally similar to that described in Specification 763,228, has the spark-gap across the earthleakage coil formed by an annular gap 2 between the earth terminal plate 1 and the test plunger 3 which is normally connected to the frame 5 by contacts 8, 11. An insulating sleeve 4a on the plunger 3 may enter the spark-gap 2 when testing, so as to clear it of foreign bodies.
Patent GB-243145-A (GB)
Abstract: 243,145. Gallie, W. S., Watt, H., Mc- Cubbin, T., Ferguson, J., and Glasgow Steel Roofing Co., Ltd. Nov. 1, 1924. Slabs.-Wall slabs, adapted to engage with vertical steel frame members 1, are each provided with a vertically extending enlargement 5 and a groove 6 formed either in the slab body, Fig. 4, or between the body of the slab and the vertical enlargement, Fig. 2.