baber/WOPTO huggingface dataset:
Patent GB-1489335-A (GB)
Title: Catalyst for the production of ethylene oxide
IPC: C07B61/00
Filed: 1973-10-26
Abstract: 1489335 Ethylene oxide preparation SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 24 Oct 1974 [26 Oct 1973] 49962/73 Heading C2C [Also in Division B1] Ethylene oxide is made by the vapour phase oxidation of ethylene with O 2  in the presence of a silver catalyst which has been prepared by (a) impregnating a porous refractory support of surface area 0À03-10 m.<SP>2</SP>/g. with a solution of a compound of K, Rb or Cs in such a concentration, having regard to any leachable alkali metal in the support prior to impregnation, as to produce-optionally after extraction with a solvent after either step (b) or step (c)-in the final catalyst a content of 0À25-16 mg. e.w. of alkali metal per kilogram total catalyst for each square metre of surface area per gram of support, (b) at least partly drying the impregnated support, (c) contacting the at least partly dried product with a liquid phase containing a dissolved compound of Ag or a slurry of particles of Ag or Ag compound in an amount sufficient to deposit 1-25 wt. per cent Ag, based on the total catalyst, on the support surface, and (d) thermally treating the product of (c), optionally in the presence of a reducing agent, to convert the Ag compound to Ag metal. Preferably the oxidation is performed at 210-285 C. in the presence of a fixed bed of catalyst, an inert diluent gas and a chlorine-containing moderator.
Patent GB-1209756-A (GB)
Title: Improvements relating to plug-and-socket connectors
Inventor: GILBERT KENNETH JOHN
IPC: H01R13/523
Filed: 1967-11-03
Abstract: 1,209,756. Hose connections. BRITISH DOMESTIC APPLIANCES Ltd. 1 Nov., 1968 [3 Nov., 1967], No. 49980/67. Heading F2G. [Also in Division H2] A plug and socket connector connects leads incorporated in the hose of a vacuum cleaner to supply leads inside the cleaner body for the supply of current to a motorized brush or beater in the cleaner head. As shown an end wall 1 of the vacuum cleaner body has an aperture 2 through which is inserted a cylindrical plug 3 attached to one end of a flexible hose 4. Three radial studs 5, 6, 7 are formed on the plug, two of which 6, 7 include contacts 8, 9 connected in a junction box 10 to leads incorporated in the hose 4. The studs 5, 6, 7 enter guide slots such as 12, on the socket, defined by flange portion 14 around the aperture 2 and a cylindrical flange 15A formed on a cover 15. Each slot has an axial part such as 12A, and a helical portion 12B terminating in a re-entrant notch 12C. The plug is locked in an operative position in the socket by inserting the studs into the axial sections of the slots and turning the plug until the studs snap into the re-entrant notches urged by a resilient ring 18 against which the plug presses. In this position, the contacts 8, 9 make contact with spring contact blades 21, 22 connected to supply leads in the cleaner body. A cylindrical shutter 26 shields the ends of the socket contacts 21, 22 when the plug is out of the socket. Three lugs 27, 28 (29), on the shutter 26 project into the guide slots and are formed with semi-cylindrical seats (27A, 28A, 29A, Figs. 1, 2, not shown) to receive the studs 5, 6, 7. Upon insertion of the plug, the lugs move from the axial portions 12A of the guide slots into the re-entrant notches 12C against the influence of springs 30, 31, 32. Two notches 28B, 29B on the shutter then become, aligned with the ends of the contact blades 21, 22 allowing contact between the blades and plug contacts 8, 9. In another embodiment, the plug is provided with only two radial studs corresponding with two notches in the end wall 1. The socket does not have guide slots, the plug being locked in its operative position by the location of a resilient arm carried on the shutter in notches formed on a raised track traversed by the arm as the plug is turned in the socket.
Patent GB-1127166-A (GB)
Title: Process for preparing phosphors
IPC: C01F17/241
Filed: 1966-11-10
Abstract: 1,127,166. Luminescent materials. MATSUSHITA ELECTRONICS CORP. 10 Nov., 1966 [22 Nov., 1965], No. 50383/66. Heading C4S. The preparation of a luminescent composition comprises preparing a solution of (a) salts of one of or both yttrium and gadolinium with (b) a europium salt forming precipitates therefrom, drying, heating to form oxides by firing at 600 to 1200 C, adding about 0À001 to 0À1 mole of flux (for example at least one of lithium, sodium, barium or strontium fluoride, calcium chloride, vanadium pentoxide, ammonium vanadate, borax or boric acid) per mole of the total of the oxides of said element or mixture of elements and heating the resultant mixture to 1000 to 1400 C. Preferably 0À02 to 0À05 mole of flux is used when Eu is in the range 0À001 to 0À15 mole per mole of yttrium or gadolinium oxide. The stability of the phosphors to water may be improv - ed by the addition of stabilizers. Preferably euro - pium oxide is added to yttrium or gadolinium oxide, mixture or solid solutions thereof, dissolved in nitric acid (or HC1 or H 2 SO 4  for instance) followed by coprecipitation of the soluble salts by the addition of oxalic acid (or tartaric acid or ammonium carbonate for instance), dried at 100 to 150 C, and fired for 1 to 4 hours and 1 to 10 hours at the first and second stages respectively. This two stage process yields particles of average size 3 to 6 microns, suitable for incorporation in Braun tubes. Examples described utilize 0À05 mole of lithium fluoride, 0À005 mole of borax and 0À03 mole of strontium fluoride per mole of oxide(s), with first stage firings from 800 to 1000 C. for 1 to 2 hrs, and second stage firings from 1200 to 1300 C. for 3 to 4 hrs yielding a red fluorescent phosphor under electron bombardment and 2537 radiation.
Patent GB-1006339-A (GB)
Title: Organic radical compounds derived from formazans and a process for their production
Inventor: KUHN RICHARD
IPC: C07D257/08
Filed: 1963-12-23
Abstract: The invention comprises organic radical compounds of the general formula <FORM:1006339/C2/1> in which R1 is hydrogen, an alkyl group or an aromatic hydrocarbon group which may be substituted by halogen, R2 and R3 are aromatic hydrocarbon groups which may be substituted by halogen or alkoxy groups and R4 is hydrogen, an alkyl or an aromatic hydrocarbon group which may be substituted by halogen.  They may be prepared by the reaction of a N,N1-diarylformazan of the general formula <FORM:1006339/C2/2> with an aldehyde of the general formula R4CHO, with an acetal or polyacetal of such an aldehyde or with a dihalogen compound of the general formula <FORM:1006339/C2/3> Alternatively, the diarylformazan may be reacted with a compound of formula X-CH2-R4 in which X is halogen, an alkyl sulphate or a sulphonate group and the resultant compound is simultaneously or subsequently dehydrogenated. Suitable formazans for use as starting materials are, for example, N,N1-diphenylformazan, N,N1 - diphenyl - methyl - formazan, triphenylformazan and N - (o - methoxyphenyl) - N1 - phenyl - C - phenylformazan. Suitable aldehydes are, for example, propionaldehyde, phenylacetaldehyde, acetaldehyde and formaldehyde. Alternatively, compounds with an aldehyde function, e.g. paraformaldehyde, 1,3,5-trioxan, paraldehyde, aldehyde hydrates and acetals or alkylidene or aralkylidene halides such as methylene iodide and benzal chloride, which give aldehydes or hydrolysis may be used.  The reaction is preferably carried out at a temperature in the range 0-20 DEG  C. and may be carried out in acid or alkaline media. Suitable compounds of formula XCH2R4 are, for example, dimethyl sulphate, methyl iodide, benzyl bromide and p-bromobenzyl bromide and the reaction with these is preferably carried out in a solvent, e.g. dimethylformamide and dimethyl sulphoxide, at a temperature in the range 0-20 DEG  C.  The dehydrogenation is carried out by usual agents, e.g. air, oxygen or potassium ferricyamide.
Patent GB-1245278-A (GB)
Title: Stabilized polyol containing mixtures
Inventor: NEWTON ROBERT ANDREW
IPC: C07C29/94
Filed: 1968-10-25
Abstract: 1,245,278. Stabilized polyol compositions; polyurethane foams. DOW CHEMICAL CO. 25 Oct., 1968, No. 50756/68. Heading C3R. [Also in Division C4] A stabilized composition suitable for use in preparing polyurethane foams comprises a mixture of a polyol and a halocarbon or halohydrocarbon, which mixture normally tends to deteriorate because of the interaction of its components and, as a stabilizer therefor, an effective amount of a non-terminal alkylene oxide. The polyol may be a simple glycol, polyoxyalkylene glycol or a polyol made by the oxyalkylation of an initiator having a multiplicity of reactive hydrogens. Exemplified polyols are a mixture of a propylene oxide/ sucrose reaction product and an ethylene oxide/propylene oxide/ethylene diamine reaction product. The exemplified halocarbon is CFCl 3 . Examples of suitable non-terminal alkylene oxides are 2,3-butylene oxide; 2,3- amylene oxide; 2-methyl-2,3-butylene oxide; 2,3 - dimethyl - 2,3 - butylene oxide; 2,3 - and 3,4 - hexene oxides; 2,3 -, 3,4 - and 4,5- octene oxides, 2,4,4-trimethyl-2,3-amylene oxide and 2,3-, 3,4-, 4,5- and 5,6-dodecene oxides. The alkylene oxides may be used in combination with phenothiazine. The alkylene oxide is suitably used in an amount of at least 0À1% by weight of the composition.
Patent GB-1115182-A (GB)
Title: Arrangement for fastening doors
Inventor: NEALE ROBERT FRANCIS
IPC: E05D1/02
Filed: 1963-12-17
Abstract: 1,115,182. Door fastenings; draught excavators. IMPERIAL CHEMICAL INDUSTRIES. 15 Dec., 1964 [17 Dec., 1963], No. 51061/64. Headings E1J and E2A. An arrangement for fastening a door or other closure 2 such as a window, flap or lid, to a frame 12 within which the closure is hinged, comprises a solid strap 13 of resilient material, one edge portion of which is attached to the closure so that the opposite face edge portion of the strip extends outwardly in the plane of the closure from one edge of the closure other than the one about which it is hinged, the extruding portion of the strip bridging the gap between the edge of the closure and the adjacent frame, the free edge portion of the strip being located in a shallow groove 14 in the adjacent frame when the closure is in closed position. The strip is made of material such as polypropylene or nylon and can be transparent or pigmented.
Patent GB-1426438-A (GB)
Title: Nickel or cobalt based alloy composition
IPC: C23C30/00
Filed: 1972-11-08
Abstract: 1426438 Superalloy coating compositions ROLLS-ROYCE (1971) Ltd 2 Nov 1973 [8 Nov 1972] 51405/72 Heading C7A An alloy which is particularly suited for use as a coating on nickel- or cobaltbase superalloys, consists of, by weight:-  together with impurities. Coatings of these alloys have improved sulphidation and oxidation resistance at elevated temperatures especially for marine gas turbine applications. The coatings may be applied by flame or plasma spraying vacuum deposition or by applying a powdered composition and melting in situ.
Patent GB-1394518-A (GB)
Title: Work loading an unloading device for hobbing machines
IPC: B23F23/04
Filed: 1973-11-07
Abstract: 1394518 Workpiece transferring; gear cutting HERMANN PFAUTER 7 Nov 1973 [28 Nov 1972] 51717/73 Headings B3B and B3K A device for loading and unloading workpieces in the form of gear blank on to and from a gear hobbing machine having a vertical work axis, comprises a ring 3 mounted for rotation about a horizontal axis on a slide 2 and having a plurality of circumferentially spaced pockets, e.g. 4a for receiving a workpiece 7 from a shoot 6, the ring being raised to remove a finished workpiece from, e.g. an arbor of a fixture 10, indexed to bring a new workpiece to the fixture 10 and also to bring the finished workpiece to a discharge shoot 11, and then lowered to engage the new workpiece on the arbor of the fixture 10, the pockets each having two opposed inclined rolling surfaces 5 and being open towards one side of the ring to receive and discharge the workpieces. The machine includes a gear hob 12 mounted on a vertical slide 13 of a movable stand 14. The pockets 4a may be interchangeable for different size workpieces.
Patent GB-1134679-A (GB)
Title: Novelty musical box device
IPC: G11B33/06
Filed: 1967-11-15
Abstract: 1,134,679. Musical boxes. J. YING-TSAI. 15 Nov., 1967 [16 Nov., 1966], No. 51977/67. Heading G5J. An electric motor drives a musical box movement and a shaft 2 to rotate a cradle 6. The cradle has a socket 8 which provides a functional fit with the shaft. The cradle may contain a flower arrangement, candlestick or candelabra.
Patent GB-1338942-A (GB)
Title: Lubricating apparatus
IPC: B65G39/09
Filed: 1971-11-10
Abstract: 1338942 Lubricating conveyer rollers BORGWARNER CORP 10 Nov 1971 [29 Dec 1970] 52168/71 Heading B8A To improve lubricant distribution to bearings 28 of a roller assembly (10) of a troughed belt conveyer, Fig. 1 (not shown), each hollow spindle 14 of a roll 12 is provided with tubes 70 which extend through the spindle wall for communication with the bearings 28. The spindles 14 are connected together and lubricant, e.g. grease, is injected via a single nipple 64. Sealing for each bearing comprises outer members 44, 50 and an inner member 42. Lubricant is able to flow out between the members 44, 50. By reducing the lengths of the tubes 70 the further they are from the nipple 64, a more even distribution of lubricant to the bearings is obtained. In Fig. 5, a centre member 130 supports a grooved sealing ring 142, the member 130 also urging a seal member 134 into line contact 136 with outer race 32. A circular spring washer 138 is located between the members 130, 134. Lubricant under pressure escapes past the ring 142.
Patent GB-1371353-A (GB)
Title: Treatment of copper and qlloys
IPC: C23C10/28
Filed: 1971-11-10
Abstract: 1371353 Coating copper with nickel  CENTRO SPERIMENTALE METALLURGICO SpA 10 Nov 1971 [9 Dec 1970] 52228/71 Heading C7F A copper or copper alloy article is coated with nickel by evaporation or electroless or electrolytic plating and then heated in e.g. hydrogen or argon to diffuse the coating to give a surface layer having 35 to 60% Ni. The copper may be sensitized with palladium chloride and the nickel may contain phosphorus or boron. An electroless bath comprises (g./l.) NiCl 2 .CH 2 O 30, NaH 2 PO 4 . H 2 O 10, glycine 35.
Patent GB-1094559-A (GB)
Title: Chlorination of polyethylene
IPC: C08F8/20
Filed: 1966-11-23
Abstract: Polyethylene is chlorinated by a process which comprises dissolving the polyethylene in an organic solvent having a dielectric constant not higher than 20, precepitating and recovering the polyethylene from the solution and submitting the recovered polyethylene to chlorination in solid, particulate form. Precipitation may be effected by cooling the solution or by adding a liquid of higher dielectric constant.  Specified solvents are carbon tetrachloride, tetrahydrofuran, toluene and xylene, and specified precipitants are methanol, acetone and water. Chlorination may be effected in the presence of ultra violet light.
Patent GB-1375734-A (GB)
IPC: H01J9/38
Filed: 1971-11-12
Abstract: 1375734 Cryogenic pumps L'AIR LIQUIDE SOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 12 Nov 1971 [13 Nov 1970] 52781/71 Heading F1N A cryopump has a cryopumping surface 108d, 108b easily accessible to the gas to be pumped and a cryopumping surface 108a less accessible to said gas, the less accessible surface 108a being positioned to receive a sorbent gas such as argon or carbon dioxide injected thereonto through a tube 120. In operation a primary vacuum is first produced by a mechanical pump followed by a sorption pump (neither shown). Thereafter cryopumping is commenced by cooling the cryopumping surfaces 108d, 108b and 108a with liquid helium in coils 110, 110 and a baffle 114 with liquid nitrogen in a coil 115. To remove the residual gases predetermined quantities of the sorbent gas are injected on to the cryopumping surface 108a by a measuring device, Figs. 1 and 2 (not shown). To prevent condensation of the sorbent gas in the tube 120 a heater 124 or a heated thermally conductive tube (130), Fig. 8 (not shown) is provided. The tube 120 may have fitted thereto a multi-orifice injection nozzle, Figs. 3 to 5 (not shown). In modifications the cryopumping surfaces are cooled by a cylindrical, reservoir filled with liquid helium, Figs. 9 and 10 (not shown).
Patent GB-1335695-A (GB)
Title: Austenitic stainless steel
IPC: C22C38/58
Filed: 1970-11-05
Abstract: 1335695 Stainless steel compositions CRUCIBLE Inc 5 Nov 1970[12 Nov 1969] 52800/70 Heading C7A An austenitic stainless steel for internal combustion exhaust valves comprising:- The total of V, W and Nb not exceeding 4À5% and the balance Fe, or optionally with Mo replacing W on an atomic weight basis. The alloy is solution treated at 2150F for 1 hour, water quenched and aged at 1400 F for 16 hours.
Patent GB-1431465-A (GB)
Title: Device for mounting in the outlet of an underfloor or wall- concealed duct
IPC: H02G3/12
Filed: 1973-11-14
Abstract: 1431465 Pipe joints; pressure resisting pipe covers etc.; pipe closures H-M TRAUPE 14 Nov 1973 [15 Nov 1972] 52805/73 Headings F2G and F2P [Also in Divisions E1-E2] A device for mounting in the outlet of an underfloor or wall-concealed duct, e.g. a pipe cap &c., comprises two axially aligned spaced clamping members drawn towards each other and each having a clamping surface at least one of which is inclined, a multi-section or slit gripper between the clamping surfaces being expanded radially to engage frictionally in the outlet. In one form, an opening 2, Fig. 1, drilled in a concrete or plaster floor 3 receives two clamp rings 7, 8 pulled towards each other by tightening screws 9 so that a split spring steel ring 11 is expanded radially to grip the surface of the opening. A cover 1 is screwed to radially inwards directed projections 6, Fig. 2, inside the clamp ring 8. Holes 13 in the cover 1 allow access to the screws 9, and a peripheral flange 4 rests on the floor 3. In another form, a pipe socket 16, Fig. 3, extending upwards from a pipe 15 buried beneath a concrete or plaster floor 3, receives a similar pair of clamp rings 7, 8, the inwardly directed lip 18 of a spigot pipe 17 latching beneath the rim of the upper clamp rim. Screws 9 are tightened to expand a split spring steel ring 11 to grip the inside of the pipe socket 16. A plug 20 is temporarily inserted into the open end of the spigot pipe 17. Sealing compound is now poured into a space 19 around the spigot pipe 17, the plug 20 preventing sealing compound splashing into the buried pipe 15. The plug 20 is removed, and the spigot pipe 17 can then be attached to various installations. Instead of the circular opening 2 shown, the opening may have a number of separate flat faces; the split-ring is then provided in the form of a corresponding number of straight elements, retained in position between two clamp members by a surrounding rubber band. The split ring &c. may have projections on its outer surface to increase its grip in the opening or socket.
Patent GB-1168628-A (GB)
Title: Improvements in Building Constructions and Fasteners for Joining Components Thereof.
Inventor: ANDREWS HAROLD JOHN
IPC: A61K31/19
Filed: 1965-12-13
Abstract: 1,168,628. Fasteners. H. J. ANDREWS. 13 Dec., 1966 [13 Dec., 1965], No. 52917/65. Heading E2B. A fastener for joining building components comprises a pair of channel members 1, 4 with flanges 1a, 4a and lateral projections 3, 6 which interengage when the members 1, 4 are pressed together. The side flanges have holes 2, 5 for securing to wooden beams or tags 9, 10 for casting into concrete components.
Patent GB-1456399-A (GB)
Title: Tilting suction device for lifting objects with flat top surfaces
IPC: B65H3/08
Filed: 1973-11-19
Abstract: 1456399 Suction grippers VITS-MASCHINENBAU GmbH 19 Nov 1973 [28 Dec 1972] 53585/73 Heading B8H A suction device for lifting flat articles comprises a bellows 4, attached at one end to a nipple 1 of a suction tube and formed at the other end as a suction cup 6. The axial spring rigidity of diametrically opposite halves of the bellows is different, owing to the rubber or plastics material being of different thickness, so that when the suction cup is closed by an article, the cup assumes an inclined attitude so as to raise for example a sheet off a pile.
Patent GB-1187418-A (GB)
Title: A Sheet Handling and Sampling Apparatus
IPC: B65H29/58
Filed: 1967-11-27
Abstract: 1,187,418. Delivering sheets. CAMERON MACHINE CO. 27 Nov., 1967 [29 Nov., 1966], No. 53798/67. Heading B8R. Sheets carried by high speed tapes 10 and 11 may be selectively diverted by switch 22 to tapes 18 and 20 driven initially at the same speed as tapes 10 and 11 but slowed down on the reception of a sheet to deposit the same in layby 34. In an alternative embodiment (Fig. 2, not shown), tapes 18 and 20 are driven at the same speed as tapes 10 and 11 and the trailing edges of sheets passing between tapes 18 and 20 are engaged by a suction device to allow the leading edge of the succeeding deflected sheet to overlap. A suction device 13 may be provided to overlap undeflected sheets.
Patent GB-1411117-A (GB)
Title: Quadrophonic systems
IPC: H04S3/02
Filed: 1972-11-22
Abstract: 1411117 Quadrophonic systems MARCONI CO Ltd 22 Nov 1972 [10 Jan 1972] 54082/72 Heading H4R A quadrophonic system includes a decoder to which two amplified signal channels L, R are applied, the signal channels comprising coded information relating to four audio signal channels, and the decoder comprises two multitapped auto transformers across which four loud-speakers are connected. By suitable choice of tapping points on the two transformers, L and R channels matrixed according to the method attributed to Scheiber can be decoded, to give four output channels for direct application to an arrangement of two front and two rear speakers. The tapping points to which the speakers are connected on each transformer provide outputs of 0À924, 0À383, and - 0À383 times the respective input signal L, R.
Patent GB-1352280-A (GB)
Title: Heat exchanger header
IPC: F28D1/053
Filed: 1972-11-24
Abstract: 1352280 Headers MODINE MFG CO 24 Nov 1972 [17 Jan 1972] 54402/72 Heading F4S A header construction for a tubular heat exchanger 10 incorporates a header plate 16 which is held in position by a mounting comprising a flat base 13 from two opposite edges of which extend a pair of spaced parallel side members 12 each provided with two sets 14 and 15 of inwardly extending lugs spaced apart to engage opposite faces of the header plate 16 therebetween. The mounting serves to hold the plate 16 against movement prior to permanently joining the plate to the header. Individual header tanks 18, 19 and 20 surround the ends of the tubes 17 whereby fluid entering through an inlet 22 is constrained to flow through the tubes before leaving through an outlet 23.
Patent GB-1243982-A (GB)
Title: Friction wheel drive
Inventor: GUEGGI MARKUS
IPC: F16H13/10
Filed: 1968-11-15
Abstract: 1,243,982. Friction gearing. CIBA-GEIGY A.G. 15 Nov., 1968 [17 Nov., 1967], No. 54451/68. Heading F2Q. In an epicyclic friction wheel drive comprising a sun wheel 7, a ring wheel 9, and a pair of diametrically-opposed planet wheels 13 therebetween, each planet wheel comprises a thin walled body 13a of a hard resilient material, such as steel and which is naturally axiallysymmetrical but is compressed between the sun wheel 7 and ring wheel 9 and thereby deformed without significant local compression of the resilient material. A similar thin-walled body 13b is formed integrally with each planet wheel 13 and these are radially compressed between a sun wheel 11 and a ring wheel 12 mounted on an output shaft 4. Either sun wheel 11 or ring wheel 12 may be fast on the output shaft 4.