baber/WOPTO huggingface dataset:
Patent GB-820602-A (GB)
Title: Improved method of and apparatus for uniformly heating flexible material in strip ortape form
IPC: B29C35/14
Filed: 1957-09-25
Abstract: 820,602. Electric heating bands. SVENSKA AKTIEBOLAGET GASACCUMULATOR. Sept. 25, 1957 [Oct. 9, 1956], No. 30079/57. Class 39(3) [Also in Group VIII] A method of uniformly heating flexible material in strip or tape form includes the steps of winding the material together with a flexible heating band or to a roller so as to form a roll having a plurality of superposed layers alternately of material to be heated and heating band, rotating the roll so formed and simultaneously applying heat from the heating band to the material and applying pressure to the roll by at least one pressure roller. As shpwn, apparatus for carrying out the method comprises a main roller 1 about which flexible material 2 and a heating band 3 incorporating electric resistors are wound in interleaved relationship to form a roll, pressure rollers 4 which are urged against the roll by pneumatic cylinders 5 acting through levers 6, and an insulated cover 7 provided with heaters 8 and fans 9. Current is supplied to the band 3 by way of sliding contacts on the rollers 1 and 4 until the desired temperature, measured as a function of the resistance by an instrument 12 (Fig. 2, not shown), is attained, the temperature then being maintained constant by adjustment of the heaters 8 and fans 9.
Patent GB-609494-A (GB)
Title: Improvements in portable houses or sheds
IPC: A01G9/14
Filed: 1945-11-12
Abstract: 609,494. Portable buildings, greenhouses &c. PROSSER, R. L. Nov. 12, 1945, No. 30123. [Class 20(i)] A portable house or shed comprises a set of frames each consisting of two vertical side members F and two rafters or roof members A, characterized in that the rafters A are joined by a link C pivoted at c<1>, c<1> near their upper ends so as to allow of their being folded parallel while leaving a space between them, and in that each side member F is connected to the respective rafter near its outer end by a link plate G whereby it may be folded up inside the rafter and parallel thereto. The side members are mitred at their upper ends to bear against the rafters, and the rafters are mitred where they butt together when the frame is set up, and an angle section D on one rafter is arranged to enter the side e of a T-section E on the other rafter, D and E extending the whole length of the structure. A longitudinal member H secured to each of the link plates G and longitudinal members J secured to the uprights F are detachably secured at their ends to two end frames of the structure.
Patent GB-243300-A (GB)
Title: Improvements in or relating to positive electrodes for electric batteries
IPC: H01M12/06
Filed: 1924-12-15
Abstract: 243,300. Soc. Anon. le Carbone. Nov. 19, 1924, [Convention date]. Electrodes.-A solid chemical depolarizer such as manganese dioxide with or without plumbago and wood charcoal and in powder or agglomerate form is protected against the entry of liquid by a colloidal coating. The latter may consist of arrow-root fecula or the colloidal solutions described in Specifications 198,656 and 211,832, and they may be applied with a brush &c. or by immersing the. heated and dried electrode in the solution. The coating may also consist of collodion or of a previously pectised colloid such as that registered under the Trade Mark Cellophane, as described in Specification 206,471. The colloidal coating may also be applied to the inner surface of a porous pot or bag containing a powdered depolarizer such as manganese dioxide, or each grain of the powder may be protected by a colloidal coating as described in Specification 226,769. The depolarizer may be provided with channels to allow of access of air to the depolarizer.
Patent GB-422697-A (GB)
Title: Improvements in or relating to the polymerisation of methacrylonitrile
IPC: C08F20/50
Filed: 1933-04-12
Abstract: Polymerization products are manufactured by subjecting methacrylonitrile to polymerizing conditions at a temperature not exceeding about 65--70 DEG  C. in the absence of a plasticizer but in the presence of a peroxide facilitating polymerization and of a liquid, preferably organic, or mixture of liquids which dissolves the monomeric methacrylonitrile, but is a non-solvent for the polymer, e.g. alcohol, petroleum ether, or a mixture thereof. Alternatively, the polymer is obtained in powder form by carrying out the polymerization in emulsion in an aqueous liquid, the emulsion being maintained if necessary by addition of an emulsifying agent, e.g. triethanolamine stearate, and by agitation.  The resulting latex may be coagulated by the addition of a precipitant, e.g. acetone and hydrochloric acid, and the powder washed free from emulsifying agent and precipitant.  The polymerization is preferably effected at about 60 DEG  C. and in a closed vessel.  As peroxides facilitating polymerization may be employed organic peroxides, e.g. benzoyl peroxide or acetyl peroxide, inorganic peroxides, e.g. hydrogen peroxide or ozone, or mixtures of substances capable of forming one of the above, e.g. sodium peroxide and acetic anhydride.  There may be added, before, during or after polymerization, fillers, dyes, pigments or other agents except plasticizers modifying the properties of the products, e.g. china clay, carbon black, powdered asbestos or wood flour.  The products may be employed for the manufacture of safety glass and for other purposes as described in Specification 419,357.  Examples describe the polymerization of methacrylonitrile under the following conditions: (1) at 60 DEG  C. in aqueous emulsion in the presence of hydrogen peroxide and of the sulphonation product of the saturated fatty acids obtained by hydrogenating coconut oil; (2) at 60 DEG  C. in aqueous emulsion in the presence of hydrogen peroxide, oleic acid and triethanolamine; (3) in aqueous emulsion in the presence of benzoyl peroxide and turkey red oil; (4) at 60 DEG C. in solution in absolute alcohol in the presence of benzoyl peroxide; (5) at 55 DEG  C. in solution in petroleum ether in the presence of benzoyl peroxide. Specifications 358,534, 416,007, and 417,999 also are referred to.
Patent GB-171688-A (GB)
Title: Clamping arrangement for sheet metal stator teeth of electrical machines
IPC: H02K1/16
Filed: 1921-11-11
Abstract: 171,688. Maschinenfabrik Oerlikon. Nov. 17, 1920, [Convention date]. Transformers.-In a clamping arrangement for sheet-metal stator teeth a, Fig. 1, each tooth is clamped by a T-shaped bar b; the end-plate c presses the whole stator laminations together. Ribs d are provided on each clamping-bar leaving spaces into which wedges e are pressed till the desired uniform pressure on each tooth is obtained. In a modification, Fig. 2, the intermediate clamping-bars b are omitted and the clamping-member d is secured to or formed integral with a sheet g.
Patent GB-136164-A (GB)
Title: Improvements in Engine-starters.
Inventor: VINCENT BENDIX
IPC: F02N15/04
Filed: 1919-12-03
Abstract: 136,164. Bendix, V. Oct. 12, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Turning-gear.-An engine-starter comprises a motor-driven member 3 mounted for automatic longitudinal movement when the starting-motor is actuated and a driving-member 10 moved longitudinally by the member 3 to engage a part of the engine to be started. In the form shown, the member 3 is a pinion mounted on a screw-threaded hollow shaft 2 driven from the motor shaft through a spring 4. The member 10 is a wheel mounted loosely on a plain shaft 6 and is engaged by the teeth of the pinion 3 and moved into gear with the fly-wheel teeth 5<a> by a shoulder 3<a> on the pinion. When the engine is started, the pinion 3 moves out of gear with the wheel 10, which is withdrawn by a spring or by the engagement of a shoulder 11<b> by the shoulder 3<a>. The starting-motor A may be an electric motor or a motor-generator.
Patent GB-880401-A (GB)
Title: Linear polyurethane-semicarbazide
IPC: C08G73/00
Filed: 1959-09-04
Abstract: A fibre-forming polyurethane semicarbazide comprises the reaction product of a diisoscyanate of the general formula OCN-R-NCO where R is a divalent organic radical free from reactive substituents and a mono-hydroxyl-substitutedhydrazide of the general formula HO-R1-CO-NH-NH2 where R1 is a divalent organic radical free from reactive substituents. Preferably R is a polymethylene radical containing 2 to 8 methylene groups.  Also specified are a number of diisocyanato-cycloalkanes, alkene, aromatic and alkarylene diisocyanates.  Hydrazides in which the radical R1 is polymethylene, arylene, alkarylene or cycloalkylene are listed. Delustrants, plasticisers, pigments and oxidation inhibitors may be incorporated in the products.  They can be used in coating compositions, lacquers, filaments and films.  In examples polymers are prepared by reacting in dioxane(1)4-hydroxybutyrilc hydrazide and hexamethylene diisocyanate; (2) 3-hydroxypropionic hydrazide and m-tolylene diisocyanate.
Patent GB-599545-A (GB)
Title: A process for the manufacture of dihalides of aliphatic mono-olefins
IPC: C07C17/02
Filed: 1945-11-13
Abstract: A dihalide of an aliphatic mono-olefin is prepared by contacting a normally liquid aliphatic olefin and free halogen in a liquid medium in the presence of a small proportion of an aluminium or stannic halide.  The liquid medium may be an inert solvent, the olefin treated, the dihalide to be produced or mixtures thereof.  The metal halide may be introduced into the halogen stream, for example as a solution in dichlorhexane, or the halogen bubbled through the metal halide.  Halogen should never be present in excess of the olefin. Comparative figures for batch chlorination of hexene at -25 DEG  C. are given without a catalyst and using ferric, aluminium, stannic, antimony, cupric, phosphorus, iodine, and sulphyryl chlorides.  In examples, stannic chloride in dichlorhexane fills the base of a reactor which is kept filled with liquid by continuous addition of hexene at the top, chlorine, into which further catalyst is introduced, entering at the base.  Dichlorhexane is recovered. Specifications 425,061, 446,411 and 557,410 are referred to.
Patent GB-896849-A (GB)
Title: Improvements in or relating to methods of manufacturing shell moulds
IPC: B22C1/26
Filed: 1958-09-23
Abstract: A method of manufacturing shell-moulds as claimed in Claim 1 of the parent Specification comprises utilizing a fluid mixture of sand and a binder, wherein the binder comprises at least 90% by weight of a sugar selected from the group comprising mono and disaccharides of an aldose or ketose character and such non-reducing saccharides which may be hydrolized to give aldose or ketose saccharides, said mixture being free from cereal binders, pregelatinized starches, flours or dextrins, said binder including further a catalyst selected from the group comprising sulphuric, phosphoric, pyrophosphoric, hydrochloric, or boric acid; aluminium, ammonium, ammonium acid or ammonium aluminium sulphate, ammonium persulphate or sulphamate; sodium chloride; alums; alkali metal persulphates; or a mixture of paraformaldehyde with ammonium chloride or hydrochloric acid.
Patent GB-475605-A (GB)
Title: Improvements in or relating to bicycle locks
IPC: B62H5/06
Filed: 1936-11-09
Abstract: 475,605. Preventing unauthorized use of bicycles. SCHWINN, F. W. Nov. 9, 1936, No. 30498. Convention date, Nov. 14, 1935. [Class 79 (iii)] Means for locking the front wheel fork and steering stem of a bicycle preferably in a position with the wheel askew to the frame, comprises a transversely slidable bolt 10 within the tubular steering stem 5, adapted to be projected into engagement with an aperture 21 in the frame head 1 by rotation of a cylindrical lock 29 mounted in the fork crown 8 and acting through a lever 14. The bolt 10 is mounted in a plug 12 secured in the end of a reinforcing sleeve 9 inserted into the stem 5. The lever 14 is mounted between spacer sleeves on a crosspin 15a, its upper end 14a passing through a slot 13 in the plug into engagement with a recess in the bolt. A spring 30 tends to retract the bolt and prevents rattling. The lower end of the lever engages a crank-pin 27 on the inner end of the rotary part of the lock 22, the bolt 10 being projected or retracted by turning the key. The lock is on the rear side of the fork crown 8 and the aperture 21 is preferably concealed in the portion of the head 1 where it is joined to a frame tube. A closure plate 29 is inserted in the lower end of the stem 5.
Patent GB-1486642-A (GB)
Title: Electron beam deflection system with voltage regulator
IPC: H04N3/185
Filed: 1974-07-10
Abstract: 1486642 DC-DC converters RCA CORPORATION 10 July 1974 [6 Aug 1973] 30592/74 Heading H2F In a line deflection and high voltage generator system, for a television receiver, of the type described in Specification 1,266,028 in which the energy in the high voltage output transformer is regulated by means of a saturable reactor, the reactor is provided with a biasing field, e.g. from a permanent magnet, arranged to reduce the inductance in the event of either a short circuit or an open circuit in the regulating system. Over-voltage under fault conditions is thus prevented.
Patent GB-1183295-A (GB)
Title: Primer for Protective Building Paints Based on Aqueous Polymer Dispersions
IPC: C08L83/04
Filed: 1968-06-27
Abstract: 1,183,295. Coating. WACKER-CHEMIE G.m.b.H. 27 June, 1968 [30 June, 1967], No. 30650/68. Heading B2K. [Also in Divisions C3 and D1) A paint primer for building materials, e.g. concrete or plaster, comprises a solution in an organic solvent of (1) 1-80 wt % of an organopolysiloxane consisting of units of the general formula in which each R is a methyl radical or H, at least 50% of the radicals R being methyl, each R' is a C1-4 alkyl radical, x, y and z are each 0, 1, 2 or 3, the sum of x+y+z not exceeding 3, the average value of x being 0.9-1.7 and of y and z each being 0-0.10, at least one of y and z being greater than 0, and (2) 20-99 wt % of an organic synthetic resin containing only carbon and hydrogen, and optionally oxygen, nitrogen, halogen and/or sulphur atoms. In preferred polysiloxanes R' is a methyl, ethyl, propyl, isopropyl, butyl, isobutyl or tbutyl group, not more than 30 mol % of the siloxane units have two or more methyl groups, and the viscosity of a 50% toluene solution is less than 1000 cS/25C. Preferred solvents boil below 250C and include alkanes of b.p. 120- 180C, toluene, xylene, trimethylbenzenes, trichlorethylene, isopropanol, diacetone alcohol and ethyl acetate. The solution may contain 5-30 wt % of resin solids in total. Suitable synthetic resins include addition polymers, alkyd resins, epoxy resins, unsaturated polyesters, polyethers and polyamides; polymers and copolymers of vinyl and acrylic compounds are particularly suitable (lists). Pigments, curing agents and plasticizers may be added to the composition. In Examples a polysiloxane (CH 3 ) 1À1  (C 2 H 5 O). 02  (HO). 04  SiO 1À42  is mixed with a vinyl acetate/laurate copolymer or a vinyl acetate/ethylene copolymer or an epoxy resin or a polymethylmethacrylate plus vinyl acetate/laurate copolymer mixture in toluene or toluene/diacetone alcohol/trimethylbenzene + ethyl acetate, and (CH 3 ) 1À1  (C 2 H 5 O) À01  (HO). 03  SiO 1 . 385  is mixed with vinyl acetate/dibutyl maleate copolymer in toluene to give primer compositions, which are applied to surfaces of porous concrete or plaster.
Patent GB-1360824-A (GB)
Title: Metallisation process for inorganic and organic polymers
IPC: C25D5/56
Filed: 1971-06-30
Abstract: 1360824 Electroplating polymers; activating polymers; coating with metals TEXTILKOMBINAT COTTBUS VEB 30 June 1971 30652/71 Headings C7B and C7F In a process for metallizing the surface of an organic or inorganic polymer, an electricallyconductive surface is produced on the polymer by grafting on (a) a non-noble and readily dissociating salt of an unsaturated acid, e.g. sodium acrylate, (b) an unsaturated acid, e.g. acrylic acid, and thereafter replacing the acidic hydrogen ions by noble metal ions, e.g. by treatment with silver nitrate solution, and thereafter chemically depositing metal thereon, or (c) a noble metal salt of an unsaturated acid followed by chemically depositing metal thereon; and subsequently electro-plating the surface. Grafting on of the film is preferably initiated by irradiation. The film of a noble metal salt as per (b) or (c) above, e.g. of silver salt, may be light irradiated to provide noble metal nuclei for the subsequent chemical metal deposition, e.g. of copper or nickel. In examples given polyamide warp knitted fabric and polyester  fibre material fabric are treated by continuous passage through a sequence of baths to produce coatings of copper and chromium thereon; and polyethylene foil is coated with copper in selected areas by carrying out the polymerizing irradiation step through a stencil.
Patent GB-210199-A (GB)
Title: Improvements in or relating to tradesmen's tickets and the like
IPC: G09F3/12
Filed: 1922-11-10
Abstract: 210,199. Southwick, J. Nov. 10, 1922. Labels.-Price tickets, labels, badges, &c. comprise a permanent print having a transparent covering b of celluloid &c. and mounted adhesively on a backing d of thin sheet celluloid &c., the periphery of the backing being pressed up to provide an upstanding rim d<1> which encloses and further secures the print. Pins, clips &c. may be secured to the ticket directly, or to an additional backing g upon which the ticket is stuck. The backing may have a point g<1> for insertion into soft goods.
Patent GB-602362-A (GB)
Title: Improvements in or relating to electric circuit-breakers having current transformersattached
IPC: H02B1/00
Filed: 1945-11-16
Abstract: 602,362. Transformers. NAAMLOOZE VENNOOTSCHAP FABRIEK VAN ELECTRISCHE APPARATEN VOORHEEN F. HAZEMEIJER & CO. Nov. 16, 1945, No. 30733. Convention date, July 16, 1942. [Class 38 (ii)] [Also in Group XXXVII] A current-transformer 2 is disposed in an oiltank 6 detachably mounted beneath the tank 1 of a draw-out type circuit-breaker, and carried by insulating-plates 7 attached to the tank. An instrument-housing 4 may be provided in front of the tank 1 and above the tank 6. The transformer primary is connected between the conductor of the bushing 5<SP>1</SP> and the fixedcontact 14, by concentric conductors within the contact-supporting bushing 3, Fig. 2 (not shown). Specifications 262,521 and 300,117, [both in Class 38 (v)], are referred to.
Patent GB-838949-A (GB)
Title: Improvements relating to brazing and to alloys for use therein
Inventor: RHYS DAVID WADE
IPC: B23K35/32
Filed: 1957-10-01
Abstract: An alloy has the following composition, by weight:-Cu 10-60%, Ni 10-50%, Mn 1-30%, Pd (at least 10%) the balance.  It is particularly suitable for use as a brazing alloy for joining together metal parts subjected in use to temperatures of 550 DEG C. and above.
Patent GB-1497192-A (GB)
Title: Boron doping of semiconductors
IPC: C03C3/064
Filed: 1975-01-07
Abstract: 1497192 Glass-ceramic OWENS-ILLINOIS Inc 7 Jan 1975 [7 Jan 1974] 30784/77 Divided out of 1497191 Heading C1M [Also in Division H1] A dopant source for the diffusion of B into Si and/or Ge from a vapour containing B 2 O 3 , preferably in a carrier gas, comprises a rigid, dimensionally-stable glass-ceramic body having the following composition (all proportions are expressed as mole per cent): SiO 2  15-40 (preferably 18-40) Al 2 O 3  15-30 B 2 O 3  20-60 (preferably 30-60) RO 5-25 (preferably 5-15) and wherein RO is MgO (0-15), CaO (0-10), SrO (0-10), BaO (0-10). La 2 O 3  (0-5), Nb 2 O 5  (0-5), Ta 2 O 5  (0-5). The glass-ceramic contains substantially no alkali metal oxides (<0À5). Processes for manufacturing the glass-ceramic body by thermal in situ crystallization of a parent glass body are disclosed.
Patent GB-893156-A (GB)
Title: Improvements relating to electrical switches
Inventor: BULGIN ARTHUR FREDERICK
IPC: H01H15/06
Filed: 1959-09-09
Abstract: 893,156. Mechanical switches, without quickaction. BULGIN & CO. Ltd., A. F. Sept. 5, 1960 [Sept. 9, 1959], No. 30805/59. Class 38 (5). A movable contact 10 adapted to bridge the centre and one of two outer fixed contacts 1, is carried by an insulating slider 9 and has a tail 11 extending through a slot 12 in the plate 2 carrying the contacts 1, a pull cord or pushbar being attached to the tail.
Patent GB-1534601-A (GB)
Title: Electrothermal gas thrusters
IPC: F02K9/68
Filed: 1976-07-23
Abstract: 1534601 Jet propulsion engines DEFENCE SECRETARY OF STATE FOR 22 July 1977 [23 July 1976] 30854/76 Heading F1J A jet thruster unit, e.g. for controlling space vehicles, comprises a tube 2 electrically heated by coils 3 and containing an injector 8 which directs hydrazine through the central passage 9 of a platinum gauge heat exchanger 7 to impinge against a plate 6, the partially decomposed hydrazine then passing through passages 10 and further gauges 4 to propulsion nozzle 1.
Patent GB-226819-A (GB)
Title: Process of treating leucite and other potassium and sodium silicates with lime, for recovering potassium or sodium aluminates
IPC: C01F7/04
Filed: 1924-12-23
Abstract: Alkali metal compounds, obtaining from complex silicates.  In the treatment at high temperature of silicates containing alkali metals and aluminium, such as leucite, with lime or limestone for the production of alkali aluminate, the melt is cooled slowly and cast in as large lumps as possible, when the latter readily break up into powder and also yield a large percentage of soluble alkali aluminate on lixiviation with water.  The melting of the mix is facilitated by the addition of a flux such as iron carbonate or ferric oxide together with coal.  The Specification as open to inspection under Sect. 91 (3) (a) states that the carbon dioxide liberated when limestone is employed for the fusion of the leucite &c. may be used to precipitate alumina from the alkali aluminate liquor, alkali carbonate being simultaneously produced.  The gases leaving the furnace may also be filtered to receive any potassium compounds present.  This subject-matter does not appear in the Specification as accepted.ALSO:In the treatment at high temperature of silicates containing alkali metals and aluminium, such as leucite, with lime or limestone for the production of alkali aluminate, the melt is cooled slowly and cast in as large lumps as possible, when the latter readily break up into powder and also yield a large percentage of soluble alkali aluminate on lixiviation with water. The melting of the mix is facilitated by the addition of a flux such as iron carbonate or ferric oxide together with coal.  The Specification as open to inspection under Sect. 91 (3) (a) states also that the carbon dioxide liberated when limestone is employed for the fusion of the leucite &c. may be used to precipitate alumina from the alkali aluminate liquor, alkali carbonate also being produced.  The gases leaving the furnace are filtered to recover any potassium compounds present.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1080260-A (GB)
Title: Improved spool valve assembly
IPC: F16K3/26
Filed: 1966-07-08
Abstract: 1,080,260. Valves. ROSS OPERATING VALVE CO. July 8, 1966 [Oct. 14, 1965], No. 30872/66. Heading F2V. A spool valve comprises an inlet 14, work ports 15, 16 and exhaust ports 17, 18, the spool 21 having lands 32-34 co-operating with 0- rings 39, 41, 42, 43. The latter are held in place by resilient spacers 44-48, each spacer comprising a pair of end rings (52, 53) connected by four equally-spaced, axially extending bars (54-57). The bar (57) adjacent a port spans the diameter of the port and extends radially outwardly relative to the other bars so that when the spacer is inserted in the bore 19 this bar (57) snaps into the port to locate the spacer. The bar (57) may be wider than the other bars so that it may be easily identified. Movement of the spool is effected by means of pistons 22 located in end-caps 24 supplied at 27.