baber/WOPTO huggingface dataset:
Patent GB-1522617-A (GB)
Title: Stirring apparatus
IPC: B01F13/08
Filed: 1975-09-03
Abstract: 1522617 Magnetic stirrers ANALOX INSTRUMENTS Ltd 3 Sept 1975 [4 Sept 1974] 38716/74 Heading B1C Liquid stirring apparatus for use in analysis comprises a chamber having an axial sample inlet 21, an offset reagent inlet 15, an offset outlet 16, and a stirrer 10 of plastics material comprising a hemisphere surmounted by a vane and incorporating a ferromagnetic element 11. The stirrer is polished except for its base which is ground. An external magnet 12 is continuously rotated; when the chamber is empty the stirrer is stationary, but rotates when the liquid enters. The inlet 15 is offset so that liquid enters from it in a direction to rotate the stirrer in the same sense as it is rotated by the magnet.
Patent GB-1314601-A (GB)
Title: Wear-resistant stainless steel
IPC: C22C38/34
Filed: 1970-08-12
Abstract: 1314601 High silicon stainless steel ARMCO STEEL CORP 12 Aug 1970 [13 Aug 1969] 38862/70 Heading C7A An austenitic stainless steel consists in per cent by weight of: the balance apart from impurities being Fe, with the proviso that when Mo is less than 5%, W less than 8À5%, Nb/Ta less than 1À5% and vanadium and tantalum are absent, the silicon content is at least 7%. The carbon content should preferably not exceed 1À15% and Cu may be present up to 4%. Other impurities which are specified are N up to 0À05%, P up to 0À04%, S up to 0À02% and Mn up to 0À61%. The alloy may be solution heat treated at 1095-1260C, followed after cooling by reheating to 650-815C. The alloy may be fabricated by brazing, welding, pressing, bending, cutting, sawing, drilling, threading or tapping and finds use in food processing, chemical, petrochemical, nuclear and agricultural fields examples thereof being given.
Patent GB-1222258-A (GB)
Title: Apparatus for dispensing adhesive materials
IPC: B05C17/005
Filed: 1968-08-14
Abstract: 1,222,258. Syringes. DAUBERT CHEMICAL CO. Aug.14, 1968 [Aug.17, 1967], No.38909/68. Heading F1R. [Also in Divisions B2 and H5]. Apparatus for melting and dispensing solid thermoplastic adhesive or cement comprises a portable applicator 10 which receives a rod 122 of solid thermoplastic adhesive in a non-heat conducting portion 14 connected to a heat conducting portion 22 enclosing a melting chamber, and a normally stationary heater 12 having an electricallyheated block 86 with an opening for receiving portion 22 of the applicator. Block 86 is heated by an encircling laminated element 106, the temperature being controlled by a thermostat 104. The molten adhesive is dispersed by pressing the resilient tip 60 of portion 22, Fig.3, against the surface to be coated, so that a slit 76 is opened, pressure being applied to a plunger 120 to move the rod of adhesive 122 downwardly to force the molten adhesive out. A lip 48 on a sealing ring 44 impedes backflow of molten adhesive from the melting chamber, a lining 52 of P.T.F.E. preventing adhesion of any adhesive which does backflow. Enlargement 18 is provided for holding the applicator.
Patent GB-802559-A (GB)
Title: A dehydrogenation process
IPC: C07C5/32
Filed: 1956-12-21
Abstract: Praseodymium oxide is prepared by precipitation of the hydroxide from a solution of the nitrate with caustic soda, washing the precipitate with water until free of ions and drying at 100-650 DEG  C. in an inert gas.  The product may be used alone or supported on alumina, magnesia, bauxite, mixtures of alumina and silica, silica gel or kieselguhr, after activation by heating to 430-650 DEG  C. in nitrogen or hydrogen, as a catalyst in the vapour phase dehydrogenation of acyclic hydrocarbons (see Group IV (b)). The catalyst may be regenerated by treatment with air or other oxidizing gas at dehydrogenating temperatures.ALSO:Acyclic hydrocarbons are dehydrogenated in the presence of a catalyst containing praseodymium oxide (see Group III) at 430-650 DEG  C. and a space velocity (liquid volume/catalyst volume/hour) of not more than 2.0.  The hydrocarbons may be gaseous or liquid, straight or branched chain, C2-C12 aliphatic hydrocarbons.  Pressures may be sub- or superatmospheric (e.g. 50-100 p.s.i.) but are preferably atmospheric.  The catalyst may be praseodymium oxide, alone or supported on alumina, magnesia, bauxite, silica, kieselguhr or silicaalumina mixtures, and may be regenerated by oxidizing with air or other oxidizing gas at dehydrogenating temperatures. Naphthenes are not affected and aliphatic hydrocarbons may be selectively dehydrogenated in the presence of cyclic compounds. This selectivity may be used to separate saturated aliphatic hydrocarbons from naphthenes, the unsaturated aliphatic and aromatic hydrocarbons formed from the former being separated from the latter by conventional means such as by treatment with sulphuric acid, sulphur dioxide or absorption with silica gel.  In an example, praseodymium oxide is used alone to dehydrogenate n-heptane at 525 DEG  C. and a space velocity of 0.2. The product contains 12.4 per cent by weight olefines and 8.3 per cent by weight aromatics.
Patent GB-958891-A (GB)
Title: A glove for use in the teaching of golf
IPC: A63B71/14
Filed: 1960-11-14
Abstract: 958,891. Gloves. A. GOWERS. Nov. 13, 1961 [Nov. 14, 1960], No. 39032/60. Heading A3V. A golf glove is provided with areas R, A, G which are differently shaded or marked to indicate the position of a hand on the club. The areas may extend from the wrist to the ends of the fingers.
Patent GB-1186210-A (GB)
Title: The Antibiotic Erizomycin
IPC: C12P1/06
Filed: 1967-08-24
Abstract: 1,186,210. Antibiotic disinfectant/fungicide. UPJOHN CO. 24 Aug., 1967 [29 Sept., 1966; 14 Feb., 1967], No. 39081/67. Heading A5E. [Also in Division C2] The antibiotic erizomycin or a salt thereof (see Division C2) is used in compositions to treat (a) soil infected with with Nocardia asteroides, (b) storm cellars and chicken houses infected with Histoplasma capsulatum. It has use as a general disinfectant and fungicide.
Patent GB-1269280-A (GB)
Title: Process for the production of alkyl aromatic hydrocarbons
Inventor: GREBBELL JOHN
IPC: C07C2/72
Filed: 1969-08-05
Abstract: 1,269,280. Side-chain alkylation of aromatic hydrocarbons. BP CHEMICALS Ltd. 30 June, 1970 [5 Aug., 1969], No. 39138/69. Heading C5E. Aromatic hydrocarbons containing a side chain in which a hydrogen atom is bonded to a carbon atom alpha to the nucleus are alkylated in the side chain with a mono-olefin in the presence of a catalyst prepared by dispersing Na and/or Li on an anhydrous potassium compound. Suitable aromatic starting materials are toluene, ethylbenzene, isopropylbenzene, butylbenzenes, xylenes, mesitylene, p-cymene and alkyl naphthalenes. The mono-olefin may be ethylene, propylene butenes or pentenes. The potassium compound may be a silicate, sulphate, halide or carbonate, and the catalyst may be hydridel before use. The alkylation may be effected at 50-600‹ C. and up to 4000 p.s.i.g. Examples describe the alkylation of toluene with propylene to give irobutylbenzene and of ethyl-benzene with propylene to give 2 methyl-3-phenylbutane using a Na/K 2 CO 3  catalyst.
Patent GB-361681-A (GB)
Title: Improvements in or relating to filters or strainers
IPC: B01D29/46
Filed: 1930-12-31
Abstract: 361,681. Filters or strainers. HOARE. A., Glenmount, Castle Road, Carisbrooke, Isle of Wight. Dec. 31, 1930, No. 39290, [Class 46.] In a filter or strainer having one or more slots and a scraper blade permanently engaging each slot and moving relatively thereto, each slot has one or both ends open and the edge of the blade emerges therethrough to eject the foreign matter. In the apparatus shown in Fig. 1 two opposite walls of an inner casing B are formed by packs of vertical plates B<2> spaced apart and fixed to the casing B by bolts B<4> passing through lugs on the plates. Liquid supplied to an outer casing A through an inlet A<1> filters outward through the walls so formed and is discharged through an outlet A<2>. An internally screwed member D engaging a screwed spindle C<1> carries blades D<1> which enter the slots between adjacent plates B<2> and rotation of the spindle by means of a hand-wheel C<4> causes the blades to travel the length of the slots and to push foreign matter through the open ends of the slots. The shaft C may be provided with a pointer E moving in a slot in an upright El to indicate the position of the blades. A modification is described in which the member D is moved backwards and forwards by an hydraulically-moved piston in a cylinder outside the casing A. A cylindrical element is formed by annular plates K, Figs. 3 and 4, held together by bolts K<4> passing through radial arms K<1>, the element being supported by a central shaft K<3> in a casing J having an inlet J<1> and :an outlet J<2>. The plates have parts K<5> cut away so that the ends of the slots between adjacent plates are open. Plates L prevent passage of liquid through the spaces corresponding to the parts K<5>. When the element is oscillated by means of a handle M<4>, blades N<1> carried by fixed spindles N clear the slots. Specification 298,856, [Class 46, Filtering &c.], is referred to.
Patent GB-1057942-A (GB)
Title: Safety valve for fluid media
IPC: F16K17/30
Filed: 1963-10-07
Abstract: 1,057,942. Valves. A. IMHOF. Oct. 7, 1963 [Oct. 8, 1962], No. 39415/63. Heading F2V. In a safety valve which is adapted to obturate flow upon a pressure difference across the valve, e.g. in a motor vehicle hydraulic brake circuit, a resilient cup - shaped diaphragm 3, upon a metallic guide bush 5, has peripheral fluid passages 4 and is displaceable by excess pressure (Fig. 3, not shown), upon an adjustable guide pin 6, into contact with a seat 10 around the outlet 7 to obturate flow therethrough. A bore 15 receives an electric or manometric switch. The guide pin 6 has axially extending grooves (8) (Fig. 4, not shown) to permit relative movement. A vent 4a assists recovery of the diaphragm 3. A conical projection (12) (Fig. 3, not shown) may be provided, rigidly attached to the bush 5, which is a tight fit into the outlet 7 to retain the valve in the closed position. When used in a water pipe, the conical member (12) is pushed out of the pipe 22 by a pin (19) to re-open the valve. Several diaphragms may be arranged in a single housing (Fig. 6, not shown) with electric manometric switches connected in series to a pilot lamp which is thereby extinguished upon closure of any one diaphragm.
Patent GB-1126989-A (GB)
Title: An arrangement for turning-on any number of series-connected controlled rectifier valves
IPC: H02M1/088
Filed: 1967-08-30
Abstract: 1,126,989. Semi-conductor switching circuits. LICENTIA PATENT-VERWALTUNGS G.m.b.H. 30 Aug., 1967 [2 Sept., 1966], No. 39607/67. Heading H3T. [Also in Division H2] An arrangement for turning on a number of controlled rectifiers comprises a magnetic core with a secondary winding associated with each rectifier, and a single primary winding linking all the cores.
Patent GB-895073-A (GB)
Title: Immunising preparations containing clostridium perfringens toxins and toxoids
Inventor: STERNE MAX
IPC: A61K39/00
Filed: 1959-11-23
Abstract: Immunizing preparations including vaccines containing Clostridium perfringens (Cl. welchii) b - or e -toxoid or both toxoids, or b - or e -toxin or both toxins are stabilized by adjusting the pH to 5.7 to 6.3 by the addition of acid or alkali as required and are then filled into sealed containers.  The pH adjustment is made after the addition of preservative and any desired adjuvant.
Patent GB-1339100-A (GB)
Title: Device for attaching blades to a rotor in an elastic fluid machine
IPC: F01D5/30
Filed: 1972-08-25
Abstract: 1339100 Turbine blade fixing WESTING- HOUSE ELECTRIC CORP 25 Aug 1972 [5 Oct 1971] 39789/72 Heading FIT Steam turbine blades 1 are secured to rotor 3 by double lobed pins 11 engaging in axial slots 7', 9 in blade bases 5 and rotor 3 respectively. In a modification Figs. 4 and 5, (not shown), the abutting edges (13') of the blade bases (5') are curved to the shape of the blade camber line so that the pins 11 extend through two adjacent bases. Each pin 11 may be formed by a number of axial lengths (11'), Fig. 2, (not shown).
Patent GB-1397161-A (GB)
Title: Staple
IPC: E04B1/38
Filed: 1973-08-22
Abstract: 1397161 Staples ILLINOIS TOOL WORKS Inc 22 Aug 1973 [10 Nov 1972] 39792/73 Heading F2H The back 12 of a staple for fastening gypsum or other wallboards has a cross-section with an undersurface 18, i.e. the surface which faces the wallboard as the two legs 14 of the staple are driven thereinto, comprising a curved central leading portion 20 which is outwardly convex, and, on either side of the central portion, outwardly and rearwardly flared portions 22 which extend to the full width of the back. As shown, the central portion extends over half the width W of the back, and is smoothly flared into the outer portions 22 by fillets 38. The outer portions 22 make an angle of 10 degrees with a plane normal to the legs 14. The sides 24 of the section are mutually parallel and normal to said plane. The Fig. 3, section is made from circular wire stock, and has a flat upper surface 16. The Fig. 5, section is made from flat wire stock. The cross-section of the back may be continued along part or all of the length of the legs 14.
Patent GB-1192050-A (GB)
Title: Optical Glass
IPC: C03C3/17
Filed: 1967-08-31
Abstract: 1,192,050. Optical glass compositions. CARLZEISS - STIFTUNG, [trading as JENAER GLASWERK SCHOTT & GEN]. 31 Aug., 1967 [8 Sept., 1966], No. 39819/67. Heading C1M. An optical glass comprises in wt. per cent: PbO, > 20 but # 60; P 2 O 5 , 35-70; one or more oxides of Mg, Ca, Sr, Ba, or Al, total 2-11; but Al 2 O 3  # 5-8; the balance, if any, consisting of compatible constituents; H 2 O is absent. Boric acid or alkali metal oxide may be present as stabilizer. The glass may be fused from a batch consisting wholly or partly of the phosphates, e.g. metaphosphates, of the metals in the above oxides. R.I. n D  may be 1À6076- 1À17217, and dispersion v may be 36À35-46À53
Patent GB-910031-A (GB)
Title: Rectractable blast deflector fence
IPC: B64F1/26
Filed: 1960-11-21
Abstract: 910,031. Blast deflector fences. STANRAY CORPORATION. Nov. 21, 1960 [Dec. 2, 1959], No. 39922/60. Class 51 (2). A counterweighted blast deflector fence 10 for jet engines comprises prefabricated metal units 12 joined at their flanges 14, pivotally mounted at 25 on triangular plates 22 supported on member 20 of a base framework and movable from the upright position shown to a horizontal position by linkages 46, 54, actuated in turn by a pneumatic cylinder 42 through rack and pinion gearing 36, 38 and a crank 62. The pivots 25 are mounted on a transverse girder 18 and the centrally pivoted arms 46 are pivoted at 44 to a transverse girder 16. The counterweight comprises concrete blocks 26 and the pneumatic cylinder 42, which is attached to a cross-member 28 may be replaced by a motor.
Patent GB-1100172-A (GB)
Title: High voltage mercury arc rectifier
Inventor: BUTAEV FILIPP IVANOVICH
IPC: H01J13/32
Filed: 1965-09-20
Abstract: 1,100,172. Metal-vapour converters. VSESO. JUZNY ELECTROTEKNICHESKY INSTITUT IM LEMINA. 20 Sept., 1965, No. 40068/65. Heading HID. The cross-sectional area of a cooling channel 20 in the housing 1 of a mercury arc rectifier increases from the inlet to the outlet to ensure a required rate of coolant flow. The rectifier comprises an anode chamber 2 with cooling ribs 15, main anode insulator 3, main anode 4 with cooler 6, cathode support 5, intermediate electrodes 7, grids 8, a filter 9 with cone 10, excitation anodes 11 connected to terminals 16, a fluid-cooled cathode cap 12, voltage divider 13 connected to anode cylinders 17 of intermediate electrodes 7 through terminals 18, and a slot igniter 14. A mercury pump 21 is connected to the interior of the housing 1 through a valve 22 remotely controlled by a solenoid 24, Fig. 2 (not shown). Adjacent surfaces of the slot igniter 14 and cathode support 5 are coated with a hard metal 35, Fig. 3 (not shown), and bear on a soft iron sealing wire 34.
Patent GB-1430759-A (GB)
Title: Apparatus for producing moulded synthetic resin components
IPC: B29C45/26
Filed: 1972-08-31
Abstract: 1430759 Moulding battery box lids JOSEPH LUCAS (BATTERIES) Ltd 28 Aug 1973 [31 Aug 1972] 40361/72 Heading B5A A mould for producing a battery lid 11 having a base 12 with a skirt 13 and ribs 14 projecting therefrom includes relatively movable first and second die parts 15, 16 defining a cavity 17 having channels 18 for moulding the ribs 14, and a stripper mechanism comprising bars 19 located in the channels 18 and carried at their ends on a frame 21 extending around the die part 15, the frame being movable to eject a moulded battery lid by engagement of the bars 19 with the ribs 14 on the lid. The die part 15 may be cooled, by fluid circulating in a chamber 24 in the die, to assist solidification of the molten plastics material introduced into the mould to form the lid.
Patent GB-1031813-A (GB)
Title: Improvements in or relating to transformer tap-changers
Inventor: WIGHTMAN GEORGE GILLESPIE
IPC: H01F29/04
Filed: 1961-11-10
Abstract: 1,031,813. Transformers. ENGLISH ELECTRIC CO. Ltd. Nov. 7, 1962 [Nov. 10, 1961], No. 40374/61. Heading H1T. An on-load transformer tap changer has a reactor 12 with a tapping or one end connected to the transformer winding (at point 11) and one end connected to at least one tap selector 20 through a series of switches 22, 23, one switch having a resistor 28 connected across it. A tap selector 20, 21 may be connected to each end 26, 27 of the reactor via a series of switches 22, 23 and 24, 25, the switches in each series being immersed in oil and mechanically connected to operate together, and a resistor 28, 31 having a value of the order of five times the ohmic reactor impedance being connected as shown. The selectors, which may be immersed in oil, may engage any of the taps 13 to 19, any change in position of a selector being made only when its corresponding switches are open. The resistors assist in the interruption of switching arcs.
Patent GB-1351678-A (GB)
Title: Production of alpha-chloroalkylcarbamyl chlorides
IPC: C07C/
Filed: 1971-08-31
Abstract: 1351678 Chloroalkylcarbamoyl chlorides BADISCHE ANILIN- & SODA-FABRIK AG 31 Aug 1971 [1 Sept 1970] 40509/71 Heading C2C Alpha-chloroalkylcarbamoyl chlorides having the general formula where R<SP>1</SP> and R<SP>2</SP>, which may be the same or different, represent aliphatic, cycloaliphatic, araliphatic or aromatic radicals and where the R<SP>2</SP> radicals may each denote a hydrogen atom or together form a carbocyclic ring; are prepared by reacting a Schiff base having the general formula (II) with phosgene. The mole ratio of phosgene to Schiffbase (II) is preferably from 1 : 1 to 1À5 : 1 and the reaction may be carried out in an inert organic solvent.
Patent GB-1463087-A (GB)
Title: Transducers
IPC: G01L9/00
Filed: 1974-09-17
Abstract: 1463087 Pressure transducers WELWYN ELECTRIC Ltd 19 Aug 1975 [17 Sept 1974] 40581/74 Heading H1K A fluid pressure transducer comprises a resilient diaphragm 11, e.g. of metal, plastics or glass, secured at its periphery, e.g. to a hollow metal cylinder 12, and having bonded thereto a semi-conductor chip 1 containing at least two diffused piezoresistive regions adapted to form arms of a Wheatstone bridge. The other arms of the bridge may also be located within the chip 1 or may comprise external resistors. The piezoresistive regions are preferably located near the periphery of the diaphragm 11, with respective arms located along radial and tangential stress axes. If all four arms of the bridge are in the chip 1 they may be arranged as a rectangular frame connected at the corners or may be mutually spaced. The chip 1 may be bonded to the diaphragm 11 by an epoxy adhesive.
Patent GB-972288-A (GB)
Title: Improvements in or relating to roof constructions for kilns
IPC: F23M5/06
Filed: 1960-11-25
Abstract: 972,288. Furnace roofs. PRENTON BRICK & TILE CO. Ltd., and A. G. SHARPLES. Feb. 20, 1962 [Nov. 25, 1960; Jan. 4, 1961], Nos. 40582/60 and 293/61. Heading F4B. The roof of a kiln consists of two cantilever-like sections supported one on each of the opposite side walls of the kiln, the arrangement being such that there is little or no side thrust on the walls, the weight of the sections acting substantially vertically through said walls. In the form shown the side walls consist of an inner lining 11 of refractory concrete and an outer shell 10 of cavity brickwork, the interspace 12 being filled with a heat-insulating material such as exfoliated vermiculite. The two cantilever sections 13, 14 meet at the centre at a corrugated joint 15 as shown or a centre section may be located between them. A large block 16 of reinforced refractory concrete rests on a ledge 18 provided on each cantilever section to retain the section stably on the side wall lining 11 so that the weight of the section and block acts vertically on the side wall. In a modification the sections are of massive construction where they rest on the side walls so that they are stable and do not thrust one against the other for support.
Patent GB-1286081-A (GB)
Title: Process for the preparation of 1,3-butadiene and methacrolein
IPC: B01J27/192
Filed: 1969-08-14
Abstract: 1286081 Oxidation catalyst JAPANESE GEON CO Ltd 14 Aug 1969 [15 Aug 1968 18 Feb 1969] 40708/69 Addition to 1286082 Heading B1E [Also in Divisions C2 and C5] 1, 3 butadiene and methacrolein are simultaneously prepared by the vapour phase oxidation of n-butene and isobutene in the presence of the catalyst of the process of the Parent Specification with the addition of antimony and/or cobalt.
Patent GB-1105947-A (GB)
Title: Unidirectional drive arrangements
IPC: G03B19/18
Filed: 1965-09-24
Abstract: 1,105,947. Ratchet gearing. EASTMAN KODAK CO. 24 Sept., 1965 [9 Oct., 1964], No. 40712/65. Heading F2Q. Pivoted nylon pawls 13, 14 are loaded by a common spring 21 against a metal driven diso 12 to continuously rotate the same in a clockwise direction and are alternately slid anticlockwise on the disc before recommencing a driving stroke by the ends 32, 33 of an oscillating rocker arm 26. The pawls 13, 14 have wedge-shaped ends which engage a corresponding groove in the disc 12 and are concentric with the pin and slot pivots 16, 17 of the pawls.
Patent GB-1128637-A (GB)
Title: Influenza vaccine
Inventor: OVERELL BRIAN GEORGE
IPC: A61K39/145
Filed: 1966-09-13
Abstract: 1,128,637. Influenza vaccine. BEECHAM GROUP Ltd. 4 Sept., 1967 [13 Sept., 1966], No. 40770/66. Heading A5B. An injectable influenza vaccine preparation comprises a parenterally acceptable liquid having suspended therein an influenza virus adsorbed on finely divided tyrosine.
Patent GB-915040-A (GB)
Title: Priming composition
IPC: C06B39/00
Filed: 1960-11-28
Abstract: 915,040. Explosive compositions. LANE, J. R. (Olin Mathieson Chemical Corporation). Nov. 28, 1960, No. 40826/60. Class 9 (2). A priming mixture comprises an oxidizing agent, red phosphorus, and a high explosive consisting of pentaerythritol tetranitrate, trimethylene trinitramine or trinitrotoluene or a mixture. The oxidizing agent may be barium nitrate, potassium nitrate, lead nitrate, lead dioxide, basic lead nitrate or barium nitratepotassium nitrate double salt. A preferred composition consists of oxidizing agent 50- 70%, red phosphorus 15-25%, high explosive 5-10% and initiating explosive, which may be normal lead trinitro resorcinate, 0-30%. The ingredients may be mixed in any order or the high explosive may be dissolved in acetone and the red phosphorus coated with the solution and the solvent removed.