baber/WOPTO huggingface dataset:
Patent GB-661628-A (GB)
Title: Improvements in or relating to forced circulation steam boilers heated by waste gases
IPC: F22B37/14
Filed: 1949-06-28
Abstract: 661,628. Forced-flow steam boilers; casings. LA MONT INTERNATIONAL ASSOCIATION, Ltd., and BAUER, F. W. June 28, 1949, No. 17068/49. Class 123(ii) A forced-flow steam boiler comprises a casing of substantially square cross-section which is fitted with waste gas upper outlet and lower inlet cones 25, 26 and houses a number of parallel steam generating elements 1. As shown, each element is in the form of straight tube lengths connected in series and, preferably, it extends in the direction of the gas flow from a water distributing header 2 and then back to an outlet header 3, the tube lengths in the return half of the element being offset and staggered with respect to those in the first half. The boiler casing consists of two side plates 13 and a rear plate 14, which are welded together along their adjoining edges and to reinforcing corner angle bars 15, and a removable front ' plate 17 which is secured to reinforcing angle bars on the front vertical edges of said side plates 13. The side plates are connected together by removable tubular ties 27, and the rear and front plates are adapted to support flats 7 to which the bends of the elements 1 are welded. Top and bottom flanges 18, 18 are provided on the sides and rear of the casing, also flanges 19, 20 at the bottom and top of the front plate, for the connection of the cones 25, 26. The casing plates and front plate may be reinforced by welded-on flats 21, 22 respectively, also diagonal cross bracings, (not shown), and they are preferably covered with insulation 31, 33 and external protection plates 32, 34. Access doors, such as 28, 29, are located in the side walls of the casing. The headers 2, 3 may be welded together at 4, attached to the casing by flats 5, and provided with end plates 6 for attachment to the side plates 13.
Patent GB-889115-A (GB)
Title: Coated substrates and method of producing them
IPC: C08L63/00
Filed: 1958-05-28
Abstract: A substrate is coated with a solution in an organic solvent of (1) a copolymer of at least one ester of acrylic or methacrylic acid with a C1-4 alkanol and 1/4 to 5% of at least one comonomer containing a polar group, the copolymer containing not more than 1 mole per cent of carboxylic acid or acid salt groups and (2) 1/2 to 20% on the copolymer of a resin-forming polyepoxide condensate (Group IV(a)) and then drying the coating. Curing agents and pigments may also be present.  Specified substrates are of paper, wood, textiles, fibre-glass laminates, ceramics, concrete, brick, masonry, leather, plastics, and most especially to primed, phosphated or bare metals such as iron, steel, aluminium or chromium.  The coating may be airdried or dried by radiant heat, high-frequency electric currents or infra-red radiation and may be baked at 150 DEG -350 DEG F. to cure. Specifications 518,057 and 579,698 are referred to.ALSO:A composition for coating a substrate comprises a solution in an organic solvent of (1) a copolymer of at least one ester of acrylic or methacrylic acid with a C1-4 alkanol and 1/4 to 5% of at least one comonomer containing a polar group, the copolymer containing not more than 1 mole per cent of units containing COOH or carboxylic acid salt groups and (2) 1/2 to 20% based on the copolymer of a resin-forming polyepoxide condensate.  Specified comonomers are 2-ureidoethyl vinyl ether, 2,2-dimethyl-2-ureido-ethyl vinyl ether, glycidyl acrylate and methacrylates, acrylic and methacrylic acids, itaconic acid, acrylamide and methacrylamide, N-alkyl1-4-acrylamide or -methacrylamide, N-methylacrylamidoethyl-N,N1-ethyleneurea, N-(b - (a -acryloxyacetamido) ethyl) -N,N1-ethyleneurea and its a -methacryloxyacetamido homologue.  Specified polyepoxides are glycol-bis-exo-dihydrodicyclo-pentadienyl ethers, the condensation products of epichlorohydrin and a polyhydroxy phenol or alcohol or condensation products of phenols with ketones, e.g. the reaction product of epichlorohydrin with bis-(4-hydroxyphenyl)-2,2-propane, with glycerol, ethylene glycol or 4,41-isopropylidene-bis-phenol, and polyepoxides of formula <FORM:0889115/IV (a)/1> where y is 2, 3 or 4. Specified solvents are toluene, xylenes, 2-ethoxyethylacetate, methyl isobutylketone, methyl ethyl ketone, dioxane, methoxyethanol, ethoxyethanol and ethyl acetate. Specified acrylic esters are the esters of acrylic or methacrylic acid with methanol, ethanol, propanol, n-butanol, sec-butanol and t-butanol copolymers containing at least 50 mole per cent methyl methacrylate are preferred.  Curing agents such as acids and anhydrides, e.g. maleic acid or anhydride, or acid salts, e.g. zinc nitrate and chloride or amine or ammonium salts may also be present as may also pigments.  The coating may be baked at, e.g. 150 DEG -350 DEG F.  Specifications 518,057 and 579,698 are referred to.
Patent GB-992612-A (GB)
Title: Razor blade holder
IPC: B26B21/12
Filed: 1963-05-01
Abstract: 992,612. Razors. W. TRAYNER. April 29, 1964 [May 1, 1963], No. 17099/63. Heading B4B. A razor blade holder having a handle part h and a blade gripping part b comprises two plates 10, 11 hinged together at one end to form a fulcrum hinge 12, 13 and having spring clasp parts 14, 15 at the other end, the blade being located in position in the part b by means of a rib 16 on the plate 10 engaging a slot in the plate 11. The plate 10 is formed with bosses 17.
Patent GB-711106-A (GB)
Title: Improvements in stair treads
Inventor: REDFARN CYRIL AUBREY
IPC: E04F11/16
Filed: 1952-07-08
Abstract: 711,106. Stair treads. SMALL & PARKES, Ltd. July 7, 1953 [July 8, 1952], No. 17116/52. Addition to 645,569. Class 20 (4) The metal frame of the stair tread of the parent Specification is replaced by a hard P.V.C. frame with one or more grooves in each of which a wearing strip of pliable plasticized P.V.C. is inserted and, if desired, secured by an adhesive. The rigid frame may be made by hot extruding a mixture containing 100 parts by weight P.V.C., 5 parts plasticizer, 1 part stabilizer and 2 parts pigment. The mixture from which the wearing strips are extruded contains 25-75 parts by weight of mixed plasticizers consisting of dioctyl phthalate, tricresyl phosphate and dibutyl sebacate and 2 parts lead stearate or silicate as stabilizer and ¢-5 parts pigment with 100 parts P.V.C.
Patent GB-1219547-A (GB)
Title: Improvements in or relating to dialling apparatus for use in a telecommunication system
IPC: H04M1/276
Filed: 1969-04-02
Abstract: 1,219,547. Number sending devices. SIEMENS A.G. 2 April, 1969 [3 April, 1968], No. 17147/69. Heading H4K. An abbreviated code key sender includes a directory 7 which is put into a reading position by the operation of one of a plurality of pushbuttons 2. The directory information is read and a second push-button, corresponding to the read information, operated to cause dialling information to be sent and also the directory to be closed. Operation of the first of the pushbuttons, which are lettered A-Z, in addition to releasing directory 7 to show the group of names corresponding to that letter, e.g. B, also closes contacts 9, 11 to mark the respective input B of code point translator 15. A second push-button corresponding to the read code, e.g. F, is operated which closes contacts 10, 13 and marks terminal F<SP>1</SP>. Thus the connection between B and F<SP>1</SP> is made and dialling information corresponding to the particular subscriber is sent using the earthed diode technique or multi-frequency dialling. The directory portion 7 is closed by the operation of the second pushbutton or by electromagnet 18.
Patent GB-635371-A (GB)
Title: Improvements in or relating to rotary tool head for cutting pipes having radially movable cam actuated cutters
IPC: B23B5/14
Filed: 1947-06-30
Abstract: 635,371. Turning ; rotary tool-heads. DALMINE SOC. P. A. June 30, 1947, No. 17168. Convention date, July 30, 1946. [Class 83 (iii)] A rotary pipe-cutting tool-head, having radially movable cam-actuated cutters L, comprises a driving spindle A supporting the cutters L for rotational movement therewith, a driving gear B secured to the spindle, a second gear E differentially driven from the driving gear B, clutch means D<SP>1</SP>, D<SP>2</SP> for connecting the cam G either to the driving or driven gears including a member D mounted to rotate with the cam G and movable to engage either of the gears, the clutch member D and driving gear B being engageable with each other only at widely spaced angular positions, and means P for resiliently urging the clutch member D axially towards the driving gear B to disconnect the differential drive to the cam G after cutting is complete. At the end of the cutting operation, rollers H pass into depressions G<SP>2</SP> in the cam G and the tools are withdrawn by springs M ; simultaneously, four projections D<SP>1</SP>, spaced at 90 degrees on the member D, are pressed into corresponding recesses in the gear B by spring-pressed pins P, thus disconnecting the differential drive B, O, O, E.
Patent GB-982741-A (GB)
Title: Improvements in remote indication devices
Inventor: HIORNS DEREK SPENCER
IPC: G01F23/02
Filed: 1962-05-04
Abstract: 982,741. Indicating liquid levels. CENTRAL ELECTRICITY GENERATING BOARD, and B. S. HIORNS. Aug. 6, 1963 [May 4, 1962], No. 17178/62. Heading G1H. [Also in Division G4] Apparatus for the remote indication of the water level in a boiler provided with a water gauge having a prismatic water-steam space and a lamp arranged to shine through the gauge comprises a plurality of vertically spaced photo-electric cells at the boiler location which are arranged to be illuminated by the lamp successively as the water level changes, and a plurality of separate indicators at the remote position, each of the photo-electric cells controlling a different one of the indicators. In Fig. 1 a water gauge 10 is shown having a plurality of light emitting apertures 11, the colour of the emitted light changing from green to red when the water level falls below the level of the particular aperture. Arranged in front of each aperture are two photo-electric cells 12, 13 Fig. 2, disposed respectively behind red and green filters 14, 16 and and suitably shielded from ambient light. At the remote point a panel having two adjacent vertical rows of electric lamps are provided, each adjacent pair of lamps corresponding to one of the apertures 11. Thus with the water at the level of a certain aperture, the lamps in one row of the panel will be lit up to the level of the lamp corresponding to the particular aperture, and above this the lamps will be lit in the other row. In an alternative form a single column of photo-electric cells and corresponding row of lamps may be used. In the embodiment shown in Fig. 6 light from a strip lamp 34 passes through a gauge 30 with a wedge shaped water/steam space 33. With steam in the space 33 the transmitted light passes along the path P2 and with water on the space 33 along the path P1. A plurality of vertically spaced photo-electric cells 36 each with a collimating tube 37 are arranged in the path P1, so that the cells up to the water level will be illuminated and may be used to switch on lamps on a control panel as before. The photo-electric cells may also be connected in circuits which each develop a voltage fed to the same variable resistor, so that the voltage across the variable resistor is dependent on the number of cells which are illuminated and thus on the water level. This voltage may be tapped and fed to a recorder.
Patent GB-595514-A (GB)
Title: Process for the preparation of hydroquinone
IPC: C07C37/07
Filed: 1945-07-05
Abstract: Hydroquinone is obtained by passing a mixture of hydrogen, steam and quinone vapour, optionally in presence of an organic solvent, stable under the reaction conditions, e.g. benzene, chlorbenzene or alcohol, over a hydrogenation catalyst, such as nickel, cobalt or copper, either separately or in admixture, advantageously employed as granules or blocks having good mechanical resistance, this state being effected by mixing with cements or clays; an alloy of nickel and aluminium superficially attacked by alkali is likewise effective. Fouling of the catalyst and formation of by-products is avoided.  In examples: (1) hydrogen, steam and quinone are passed at 240 DEG  C. over granular nickel-cement; (2) hydrogen, steam, quinone and chlorbenzene vapour are reacted as in (1), the vapours being fractionally condensed to obtain concentrated aqueous hydroquinone and effect recovery of chlorobenzene.
Patent GB-237721-A (GB)
Title: Improvements relating to crystal detectors for wireless receiving apparatus and the like
IPC: H01L29/00
Filed: 1924-07-18
Abstract: 237,721. Lister, H., and Metropolitan- Vickers Electrical Co., Ltd. July 18, 1924. Crystal detectors. - The catswisker arm 7, Fig. 2, of a crystal detector is mounted on a ball-andsocket joint 5, 6. The ball element comprises two halves 10, 11, Figs. 3 and 5, each having a diametral recess 13 to take the spindle 7. A projecting collar 12 on the part 10 embraces the opposed surface of the part 11, as shown an Fig. 5. The half-elements may be cut from solid bar or stamped out from sheet metal.
Patent GB-1071326-A (GB)
Title: Process for the production of alcohols
IPC: C07C29/52
Filed: 1965-04-23
Abstract: A process for the production of primary and secondary alcohols comprises reacting molecular oxygen with a mixture of a saturated hydrocarbon and a boric reactant which is a boric acid or boric anhydride, in the liquid phase, and hydrolysing the liquid phase obtained in order to separate the alcohol formed characterized in that the hydrocarbon, boric reactant and O2 are introduced continuously into the liquid phase which contains a boric derivative of the alcohol corresponding to the hydrocarbon in a concentration amounting to between 1.5 and 40% by weight expressed in terms of combined alcohol in the boric derivative and in that the reaction mixture is drawn off continuously prior to hydrolysis.  Specified temperatures and pressures are from 100 DEG  to 250 DEG  C. and from 1 to 40 kg./cm.2.  Suitable hydrocarbons are cyclohexane, cyclo-octane, cyclododecane, hexane, octane and hexadecane.  Examples describe the production of cyclohexanol.
Patent GB-170628-A (GB)
Title: Improvements in pipe or hose couplers
IPC: F16L37/252
Filed: 1920-06-25
Abstract: 170,628. Johnson, J. P. June 25, 1920. Couplings, disconnectible; spigot-and-socket joints with packing at base of socket; tapered spigot-and-socket joints; bayonet-joints.-Tapering spigot-and-socket members 3, 4 are forced together to compress resilient packing 16 and then turned to allow the engagement of a tooth 11 on a bayonet-joint member 8 on the spigot with serrations 22 on a coacting member 20 on the socket, the serrations allowing step-by-step tightening of the joint. After adjustment, a locking- nut 25 secures the joint.
Patent GB-1497975-A (GB)
Title: Air-liquid spray systems
IPC: A45D34/04
Filed: 1976-04-29
Abstract: 1497975 Forcing liquids by gaseous pressure HELENE CURTIS INDUSTRIES Inc 29 April 1976 [12 Dec 1975] 17521/76 Heading FIR A device for supplying liquid and air to a spray gun comprises a base 26 which houses an electric motor driven compressor 16. A removable liquid reservoir 18 is supported in brackets 33 on the base and has a head incorporating a plug-in connector providing a connection from the compressor to the reservoir and leads to the spray gun from the liquid and gas spaces in the reservoir.
Patent GB-259539-A (GB)
Title: Improvements in or relating to bombs or the like
IPC: F42B12/44
Filed: 1926-07-13
Abstract: 259,539. Pantoflicek, B. Oct. 12, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Projectiles.-An incendiary bomb contains a charge 7 of incendiary material, such as the substance at present sold commercially as " thermit," an explosive charge 3, and a percussion fuze 2. In one form, Fig. 1, the percussion fuze ignites the explosive charge, and this disperses and at the same time ignites the incendiary charge. In a modification, Fig. 2, the percussion fuze ignites the incendiary charge by means of an igniting composition 6 and a flash tube 5 with powder columns 11, 12; and the incendiary charge after a time transmits ignition to the explosive charge 3.
Patent GB-1111942-A (GB)
Title: Foamed lon exchange plastics materials
Inventor: ROTENBERG BORIS NAUMOVICH
IPC: C08L61/10
Filed: 1965-04-27
Abstract: Foamed ion-exchange plastics materials are prepared by incorporating ionizable groups either into a polymerizable compound which is then polymerized and foamed, or into a foamed polymer prepared from said polymerizable compound. By "foamed" is meant that the material is subjected to the mechanical introduction of gas to form pores or pockets in it. Monomers containing ionizable groups, e.g. p-phenolsulphonic acid, phenoxyacetic acid and acrylic acid and its derivatives may be polymerized with the polymerizable compound. The ion exchange capacity of the foamed plastics may be increased by treatment with a reagent containing ion exchange groups, e.g. chlorsulphonic acid.  Plastics materials may be polyvinyl chloride, polyethylene, and polyvinyl formal.  In the Examples (1) phenol is treated with the sodium salt of chloracetic acid and foamed in the presence of polyvinyl alcohol, formalin, hydrochloric acid and methyl cellulose, (2) phenol is sulphonated and foamed in the presence of polyvinyl alcohol, formalin and an emulsifying agent, (3) foamed polyvinyl chloride is treated with chlorsulphonic acid.
Patent GB-900300-A (GB)
Title: Improvements in fountain pens
IPC: B43K5/14
Filed: 1959-05-25
Abstract: 900,300. Reservoir pens. ESTERBROOK PEN CO. May 25, 1959 [May 28, 1958], No. 17690/59. Class 146 (3). A cartridge-filled reservoir pen comprises a writing assembly consisting of a nib and feedbar assembled as a unit in a sleeve detachably mounted in the nib section, and an ink-feeding assembly interposed between the writing assembly and the ink-cartridge and consisting of a body member having a bore in axial alignment with the cartridge and a tubular cutting element mounted in the bore of the body member, which element pierces a diaphragm sealing one end of the cartridge whenthe parts are assembled and allows ink and air to pass along its bore. The nib section 12 houses the writing assembly which is enclosed in a sleeve 15, and a member 20 which is longitudinally slidable therein. The member 20 has an axial bore into the rear end of which is fitted a piercing tube 23. A rod 24, one side of which is cut away to leave a capillary air passage 24c and which has a capillary ink groove 24a, is frictionally fitted in the tube 23 and extends forwards therefrom into the bore of the member 20. The front end of the member 20 is formed with an annular ridge 25 which abuts against the rear end of the feed-bar carried in the sleeve 15, and with diametral capillary slots 26, 27 at right angles to each other. A disc 22, e.g. of metal, is mounted on the rear end of the member 20 for abutment with the front end of the ink cartridge 16. A resilient washer 21 surrounds the member 20 and prevents any leakage of ink from the cartridge from reaching the writing assembly. A sealed polyethylene cartridge inserted in the pen barrel is ruptured at 16b by the piercing tube 23 when the writing assembly is screwed home in the nib section, which operation causes rearward movement of the member 20. Ink flows down the groove 24a and air passage 24c and fills the annular space 20b between the rod 24 and the member 20. Ink is fed to the ink grooves in the feed bar down the slot 26 which is deeper and narrower than the slot 27 and is drawn first from the air passage 24c as this has smaller capillarity than the groove 24a and space 20b. Air enters the cartridge through the slot 27 and in the form of bubbles along the passage 24c. The barrel contains a reserve cartridge 16 to the rear of the one in use.
Patent GB-1413896-A (GB)
Title: Manufacture of universal joints
IPC: B23P25/00
Filed: 1973-04-12
Abstract: 1413896 Heat treatment of tubular members GKN TRANSMISSIONS Ltd 25 March 1974 [12 April 1973] 17744/73 Heading C7N [Also in Division B3] In the manufacture of the outer tubular member of a constant velocity universal joint or similar analogue, after machining, the member is gas carburized at 850‹C and oil quenched (110- 150‹C) before stress relieving at 180‹C to produce a tubular member whose ends have an i d some 0.002-3" larger than that of the intermediate portion in a nominal 3" i d tube. On friction or C02 welding a cap on to one end of the tube, the welded end contracts to give an i d about 0.002" smaller than that of the intermediate portion. Induction heating of the uncapped end of the tubular member at about 800‹C for 1-5 seconds, followed by water quenching to avoid heating the intermediate portion causes a contraction of this end, the extent depending on the time at temperature, which again produces an i d less than that of the intermediate portion. Thus, on assembly of the universal joint, the inner member will have a greater clearance at the intermediate section of the outer tube than at the ends.
Patent GB-1219236-A (GB)
Title: Process for the manufacture of allyl chloride or methallyl chloride
Inventor: FERNHOLZ HANS
IPC: B01J31/00
Filed: 1969-04-08
Abstract: 1,219,236. Allyl and methallyl chlorides. FARBWERKE HOECHST A.G. 8 April, 1969 [19 April, 1968], No. 17817/69. Heading C2C. Allyl chloride or methallyl chloride is prepared by reacting allyl acetate or methallyl acetate with hydrogen chloride in the presence of a catalyst comprising a mixture of a copper salt and a Lewis acid, at a temperature of 20 to 200 C., preferably above 45 C. The catalyst mixture is preferably used in an amount of 0.01 to 10% by weight based on the allyl or methallyl acetate. Exemplified Lewis acids are iron (III), aluminium, titanium (IV), beryllium, zirconium (IV), antimony (V), bismuth (III) and zinc chlorides and aluminium bromide, and specified copper salts are the chlorides, bromides, sulphates and acetates. The acetate starting material may be in the liquid or gaseous phase.
Patent GB-997498-A (GB)
Title: Improvements relating to block copolymers
IPC: C08F8/34
Filed: 1963-05-06
Abstract: Block copolymers are made by adding a vinylidene compound to a solution of a catalyst which promotes the formation of dicarbanions in a solvent containing no active hydrogen atoms, thereby polymerizing the vinylidene compound, and thereafter adding sulphur or an alkylene episulphide to the solution to copolymerize with the vinylidene polymer.  The Examples describe the use of sodium biphenyl as a catalyst to prepare block copolymers of: (1) styrene and ethylene episulphide, (2) styrene and propylene episulphide, (3) styrene, propylene episulphide and acrylonitrile, (4) styrene and sulphur, (5) butadiene and propylene episulphide, (6) acrylonitrile and dodecylene episulphide, and (7) isoprene and ethylene episulphide.
Patent GB-577571-A (GB)
Title: Improvements in apparatus for the sealing of containers
IPC: B21D51/32
Filed: 1943-10-29
Abstract: 577,571. Sealing containers in vacuo. ARMSTRONG, J. J. V. (Continental Can Co., Inc.). Oct. 29, 1943, No. 17862. [Class 125 (ii)] In an apparatus for sealing containers under reduced pressure the containers 16 are fed automatically in sequence by a rotary valve 11 to a chamber 8 under reduced pressure after which they are fed by a second rotary valve 13 to a second chamber, 6, under further reduced pressure where they are sealed. Diametrically opposite pockets on the valves are connected at 40 so that a pocket that is passing into a chamber is partially exhausted by a pocket that is passing out of the chamber. Two vacuum pumps 43 and 41 are used, the first producing a 27 inch vacuum and removing nine-tenths of the air, and the second producing a 29¢ inch vacuum.