baber/WOPTO huggingface dataset:
Patent GB-1476213-A (GB)
Title: Photocathodes
IPC: H01J9/12
Filed: 1974-07-12
Abstract: 1476213 Photocathodes R C A CORPORATION 12 July 1974 [12 July 1973] 31066/74 Heading H1D A photocathode comprising a layer of Sb and K deposited on a substrate is sensitized by heating to 200-250 C., successively evaporating on to the heated layer Na, Sb and K, baking to 210-250 C. and evaporating K a number of times whilst reducing the temperature to 170 C; each evaporation step and the baking are continued at least until a maximum sensitivity is achieved and preferably until it falls to 70-80% of the maximum. The photocathode is able to operate at higher temperature than those sensitized with Cs. The cathode is formed on the inner surface of a photo multiplier tube containing sources of Na, Sb and K. The sources of Na and K comprise Na and K chromate, Zr and W respectively. The cathode may be used as a secondary electron emitter.
Patent GB-160236-A (GB)
Title: Process of converting heavy into lighter hydrocarbons
Filed: 1919-12-12
Abstract: 160,236. Goold, L. W., (Universal Oil Products Co.). Dec. 12, 1919. Hydrocarbons, cracking.-In the conversion of heavy into light hydrocarbons by heating under pressure, the oil is passed through a heating-zone into a vaporizing-chamber C from which the residues are removed by a pipe K, and the vapours are subjected to a partial condensation in condensers E, G<1>, and to a final condensation in a condenser G<3>, the pressure being maintained by a valve H or the like situated on the outlet from the condenser G<3>. The condensate from the condensers E, G<1> is led by pipes F, F<1>, L<1> either direct to the heating-zone or to a tank L from which it is forced by a pump J to the heating-zone. The tank L may contain the supply of raw material. The vaporizing-chamber C may be heated by a light fire or may be heavilyinsulated. The operation is effected under a pressure of 100 lb. per sq. in., and the heating- zone is kept at 750-860‹ F.
Patent GB-1153651-A (GB)
Title: Improvements in or relating to Sheet Material Forming
Inventor: COLSTON-ILES FREDERICK ALFRED
IPC: B31B50/36
Filed: 1965-07-22
Abstract: 1,153,651. Folding sheet material. GARROD & LOFTHOUSE Ltd. 2 Aug., 1966 [22 July, 1965], No. 31171/65. Heading B5D. A sheet, for example a blank to form a gramophone record sleeve with a spine, is folded up by a series of pairs of rollers 13a . . . 18a, 13l . . . 18b, each pair of which consists of a male roller 13a and a female roller 13b, the curvature of the female rollers successively increasing. In the embodiment described a blank for a gramophone record sleeve is conveyed along a guide (11) and part 12a is bent up at right angles to the remainder by a rigid plough 22 and a length of flexible material 23 disposed to form a folding plough. The female rollers change gradually from a plane cylindrical profile (13b), (Fig. 2, not shown) to a channel section (18b). The female rollers are driven through gearing, while the male rollers idle, and both sets can readily be changed,
Patent GB-487221-A (GB)
Title: Improvements in and relating to anti-dazzle devices for motor vehicle lamps, vehicle and road illuminating lamps and the like
IPC: F21V11/00
Filed: 1936-11-16
Abstract: 487,221. Anti-dazzle lenses. PERRY, S., and JONES, E. G. Nov. 16, 1936, Nos. 31215/36 and 7806/37. [Class 75 (ii)] A concavo-convex lens n to prevent dazzle in vehicle lamps has formed integrally with it annular, translucent and inwardly projecting ribs o, which may be corrugated or fluted (Fig. 6), or coloured, or connected by radial webs l, and may end in alignment with one another or parallel to the lens contour. Lens n may be corrugated and have a frosted or translucent rim g. The Provisional Specifications also state that the lens may be of any type, and the ribs square- or diamond-shaped and detachable from it, and that interior diffusing rings, corrugated, fluted or coloured, may be used.
Patent GB-604480-A (GB)
Title: Improvements in or relating to synthetic resin coating compositions
IPC: C09D161/24
Filed: 1945-11-20
Abstract: A coating composition comprises a urea-formaldehyde resin, preferably one which has been etherified, e.g. with butyl or octyl alcohol, and an alkyd resin modified, by esterification, so as to contain the radicles of a drying oil fatty acid and of a hydroxylated or oxidized unsaturated fatty acid, the latter radicles constituting at least one third of the acid radicles present.  The second-named radicles may be formed in situ, e.g. by blowing the drying-oil-fatty-acid-radicle-modified resin until at least one third (but not all) of the unsaturation has been removed.  Specified drying oil fatty acid radicles are those derived from linseed, tung, perilla and dehydrated castor oils and specified hydroxylated or oxidized unsaturated fatty acid radicles are those derived from blown rapeseed oil, raw or blown castor oil, and blown linseed oil.  In examples: (1) a partial condensate of phthalic anhydride, glycerine, and linseed oil fatty acids is further condensed with blown castor oil, dissolved in xylene, and mixed with a xylene solution of a butylated urea-formaldehyde resin; (2) a partial condensate similar to that of example 1 is blown with air, dissolved in xylene, and mixed with a xylene solution of an octylated urea-formaldehyde resin; (3) dehydrated castor oil and glycerine, after heating together, are condensed with citric acid and the condensate used as in example 1; (4) a partial condensate of castor oil and phthalic anhydride is further condensed with pentaerythritol, linseed oil fatty acids and more phthalic anhydride, blown with air, dissolved in xylene, and butanol and mixed with the urea-formaldehyde resin of example 2; (5) a partial condensate of castor oil and maleic anhydride is further condensed with phthalic anhydride, glycerine and linseed oil fatty acids, dissolved in xylene, and mixed with urea-formaldehyde resin as in Example 1.
Patent GB-743458-A (GB)
Title: A process for the regeneration of a catalyst accelerating the binding of oxygen to hydrogen
IPC: B01J23/92
Filed: 1953-11-11
Abstract: A catalyst which accelerates the reaction between oxygen and hydrogen, and which has become polluted by deposited sulphur during use for removing free oxygen above a critical concentration from a gas containing also hydrogen and hydrogen sulphide, is regenerated by treatment with the gas in which the oxygen content has been reduced below the critical concentration by passing through the unpolluted catalyst.  The critical oxygen concentration for a catalyst at a particular temperature is that at which the amount of sulphur formed by the reaction of hydrogen sulphide with oxygen is equal to the amount of sulphur removed by evaporation and reaction with hydrogen. A suitable catalyst comprises at least one of the metals molybdenum and tungsten in the form of sulphide and/or oxide, a promoter containing at least one of the metals iron, cobalt, nickel, chromium, vanadium, and uranium in the form of sulphide and/or oxide, and a carrier of alumina, silica gel, or synthetic or natural aluminium silicate. Preferred temperatures for regeneration are 200-360 DEG C. The mass of catalyst used for oxygen removal may be divided into two parts, and when one part has become polluted, the gas flow is reversed so that the oxygen-free gas obtained is used as the regenerating gas.  Alternatively, the regenerating gas may be passed through the bed until a sufficiently thick layer thereof has been regenerated, then raw gas is substituted for regenerating gas.  A system may be employed which includes multi-step reactors as described in Specification 742,912.  The gas treated may be rich in hydrocarbons and obtained, for example, by the dry distillation of shales.  Specification 719,791 also is referred to.
Patent GB-185352-A (GB)
Title: Improvements relating to ships' ventilators and the like
IPC: B63J2/10
Filed: 1921-11-23
Abstract: 185,352. Swanberg, J. F. Nov. 23, 1921. Valves.-A ventilator, particularly for ships, of the type having a cover or valve capable of being raised and lowered and simultaneously tilted to open the passage, is provided with pawl and ratchet mechanism to retain the cover in any desired position. The ventilator shown comprises a cowl 7 fitting over the shaft top 6, at the top of which is a seating for the cover or valve 8, which in the closed position rests upon a gasket 10. The valve 8 is pivotally mounted on a spindle 15 having a swivel connection to a rack-bar 22 by which the valve is raised or lowered. A link 20 causes the valve when raised to tilt to an inclined position, and the spindle 15 may also be rotated to bring the valve into a position where it offers least resistance to the air. The rack-bar 22 is operated by a pinion 24 operated by an external crank 28, on the shaft of which is a ratchet wheel 29 which may be held against movement in either direction by a reversible pawl 30.
Patent GB-872951-A (GB)
Title: Hydraulic ram apparatus
Inventor: NORTON HENRY
IPC: F15B11/02
Filed: 1958-10-01
Abstract: 872,951. Hydraulic apparatus. NORTON TOOL CO. Ltd. Sept. 21, 1959 [Oct. 1, 1958], No. 31420/58. Class 69 (2). [Also in Group XXII] Hydraulic apparatus, such as a press, shaper, slotter, rock drill, or other member comprises two chambers 17, 18, Fig. 1, which are formed by a differential area piston 12 in a cylinder 11 and are connected by a passage 22, 23, 24, 25 containing valve means 26 arranged to permit flow from the chamber 18 of smaller effective area, which is connected to a source 20 of hydraulic pressure, to the chamber 17 of larger effective area, which communicates with a valve 34 operable to control the release of hydraulic fluid therefrom, on the occurrence of a predetermined high pressure in the chamber 18 and, thereafter, to permit flow in the same direction at a lower pressure, the predetermined high pressure being greater than the pressure required to return the piston with the valve 34 fully open. The control valve 34 consists of a piston 35 connected by a spring 38 to a manually-operable lever 39. With the lever in the position shown, the piston 12 having been moved to its upper position by the pressure from the pump in the chamber 18, the fluid moves the piston 28 of the valve 26 upwards and passes through a port 32, passages 24, 33 and the valve 34 to an exhaust line 40. When the lever is moved to the left, the piston 35 of the valve 34 closes the exhaust line and pressure builds up in the passage 25 and chamber 17 to move the piston downwardly, fluid in the lower chamber passing through the connecting passages and valve 26 to the upper chamber 17. The pressure is maintained on the ram until the lever 39 is moved to the right, the pressure then being relieved, the valve 26 closing and the ram immediately rising since the pump is permanently connected to the chamber 18. When the ram abuts a stop 41 high pressure in the chamber 18 and passages 22, 23 re-opens the valve 26. In another embodiment, the valve 26 is replaced by a spring-loaded non-return valve and a valve in parallel with the non- return valve operated mechanically by a striker on the ram. In a further embodiment, a low-pressure pump 50, Fig. 5, is included in the hydraulic circuit to provide a rapid approach stroke of the ram. The pump is connected by an unloader valve 51 and a non-return valve 52 to the line 25. The valve 51 has a member 57 spring-urged to a closed position by a spring 56, and a member 59 which, when the pressure in the chamber 17 is higher than that delivered from the pump 50, moves the member 57 to the left to by-pass the output from the pump to a reservoir 19. In order that the closing of the valve 26 in the high-pressure circuit may not be impaired by fluid trapped below its piston, the ends of the cylinder of the valve are interconnected by a passage 64 in which is a piston- and-cylinder device 62. The control valve 34 may be replaced by a control unit such as is described in Specification 872,950.
Patent GB-1155825-A (GB)
Title: System For Adjusting The Recycle Rate Of Flow In Ammonia Synthesizing Processes
IPC: G05D7/01
Filed: 1966-07-13
Abstract: 1,155,825. Flow control in ammonia synthesis. NUOVO PIGNONE S.p.A. 13 July, 1966 [14 July, 1965], No. 31448/66. Heading C1A. [Also in Division F1] In an ammonia synthesis process, the recycle rate of flow is regulated by a series of manually or automatically adjustable vanes hinged to the non-movable part of a centrifugal re-cycle compressor, inside the mouth of the gas-inlet duct thereof; the impeller of the compressor is keyed on the same drive shaft as those of the centrifugal compressors for the synthesis gas.
Patent GB-1136184-A (GB)
Title: Improvements relating to pressure vessels
IPC: D06C7/00
Filed: 1967-07-07
Abstract: 1,136,184. Textile treating apparatus. KLEINEWEFERS G.m.b.H. [trading as JOH. KLEINEWEFERS SOHNE]. 7 July, 1967 [6 Aug., 1966], No. 31452/67. Addition to 1,049,947. Heading D1L. The sealing device disclosed in Specification 1,049,947 is used in a plurality of stages 4, 5, 6 each constructed as previously disclosed and having a chamber 7, 8 for pressure therebetween. In use a series of graded pressure is established in the chamber by gas or liquid including the supply of treatment fluid as for example through sprays 11. Additionally the foils may have ribs thereon to minimise fluttering.
Patent GB-1304707-A (GB)
IPC: C07D243/30
Filed: 1970-06-30
Abstract: 1304707 Benzodiazepines F HOFFMANNLA ROCHE & CO AG 30 June 1970 [2 July 1969 17 Nov 1969 15 April 1970 4 May 1970 13 May 1970] 31501/70 Heading C2C Compounds of the general formula (B=CH 2 , CO; R 1,3,4 =H, C 1-7  alkyl; R 2 =H, halogen) are prepared by (a) diazotizing a corresponding 7-amino derivative, treating the diazonium salt with an alkanoyl group-providing agent and hydrolysing the product, (b) ring- closing a compound of the formula (c) treating a corresponding 7-cyano derivative with an alkyl lithium and hydrolysing the product (B = CH 2  when R 1  = alkyl) or (d) oxidizing the α-methylene group in a corresponding 7-(C 1-8  alkyl) derivative, optionally followed in each case by N-alkylation and/or oxidation of B = CH2 to B=CO. The above compounds are anticonvulsants, muscle relaxants and sedatives and may be administered in the form of pharmaceutical preparations containing them, with or without other (unspecified) active ingredients, in association with a carrier.
Patent GB-392090-A (GB)
Title: Improvements in and relating to heat radiators
IPC: F24H3/00
Filed: 1932-11-08
Abstract: 392,090. Radiator tube joints. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Unger, M.; 51, Lincoln Terrace, Pittsfield, Massachusetts, U.S.A.) Nov. 8, 1932, No. 31536. Convention date, Nov. 11, 1931. [Class 99 (i).] A transformer radiator comprises sheet-metal headers 10, 11 connected by thinwalled seamless tubes 12, the headers being provided with openings having flanged edges 13 to which the ends 17 of the tubes are welded. The ends of the tubes are reduced in diameter and have their wall thickness increased simultaneously by swaging, prior to assembly.
Patent GB-263137-A (GB)
Title: Improvements in hydraulic "pot" presses
IPC: B30B9/04
Filed: 1926-12-13
Abstract: 263,137. Lehmann, F. B. Dec. 15, 1925, [Convention date]. Addition to 224,530. Oil-presses.-In the hydraulic " pot " press described in the parent Specification, compression springs 10 arranged as shown are used to urge the press pots c, c<1>, c<2> against the press heads B<1>, B<2>, D, the rods 12 for separating the pots and press heads after completion of the pressing operation are operated by pistons 21 working in hydraulic cylinders 22 or by a common piston, and the press heads B, B<1>, B<2> are so dimensioned that the press pots may be lowered until the press cakes are ejected from the pots. The rods 12 may be correctly positioned initially by means of bolts 20 engaging slots therein, the bolts being withdrawn before the rods 12 are lowered to open the press.
Patent GB-320780-A (GB)
Title: An apparatus to control the behaviour of coal or other material while being carbonised in a retort, in order to facilitate the discharging of it
IPC: C10B1/02
Filed: 1928-10-31
Abstract: 320,780. Fraser, W., and Davidson, W. Oct. 31, 1928. retorts.-A retort for use in low temperature carbonization is provided with a movable bottom or plug j which, at the beginning of the carbonizing period, is at its highest in the retort, and which, as the charge swells, is lowered by hydraulic cylinders n. The movable bottom has a water trough into which extends a dip ring m to form a water seal.
Patent GB-602072-A (GB)
Title: Improvements in or relating to trouser presses
IPC: A47G25/72
Filed: 1945-11-23
Abstract: 602,072. Garment hangers. DENNYS, F. O. B., and PRACTICAL PURCHASING CO., Ltd. Nov. 23,1945, No. 31639. [Class 52(v)] [Also in Group VII] A trouser press comprising two flat boards 10 and 11 is characterised in that the upper portion 14 of the back board 10 extends above the front board 11 to form a coat hanger having fixed or inwardly foldable shoulders which project beyond the edges of the board. The shoulders may be integral with the portion 14, or as shown, shoulder pieces 18 may be pivoted to the board 10 at 19, their angular movement being limited by stops 20. A transverse slot 15 is provided for the passage of the trouser legs.
Patent GB-1491269-A (GB)
Title: Oxathiolane and oxathiane derivatives and perfuming and flavouring agents
IPC: A23L27/20
Filed: 1975-07-29
Abstract: 1491269 1,3-Oxathiolanes, 1,3-oxathianes and their S-oxides FIRMENICH SA 29 July 1975 [2 Aug 1974 16 Jan 1975] 31653/75 Heading C2C [Also in Divisions A2 and A5] The invention comprises compounds (I), wherein (a) m and n represent 0 or 1 and each of the symbols R<SP>1</SP> to B<SP>8</SP> represents a hydrogen atom or a saturated or unsaturated, linear or branched aliphatic radical containing from 1 to 11 carbon atoms, or (b) n represents 1 and m represents zero or 1, each of symbols R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> have the above described meaning, R<SP>6</SP> and R<SP>7</SP> each represents hydrogen and R<SP>6</SP> together with R<SP>8</SP> and the carbon atoms carrying them, in positions 5 and 6 respectively, form a substituted or unsubstituted cyclopentane or cyclohexane ring, or (c) n represents 1 and in represents zero or 1, each of symbols R<SP>1</SP>, R<SP>3</SP>, R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP> represents hydrogen, R<SP>2</SP> represents an alkyl radical with 1 to 6 carbon atoms or a hydrogen atom, R<SP>4</SP> represents a para-substituted or unsubstituted phenyl or a substituted or unsubstituted cyclohexenyl radical, and R<SP>8</SP> stands for a lower alkyl with 1 to 6 carbon atoms, or (d) n represents 1 and m represents zero or 1, each of symbols R<SP>1</SP>, R<SP>3</SP>, R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP> represents hydrogen, R<SP>2</SP> a psubstituted or unsubstituted phenyl or a substituted or unsubstituted cyclohexenyl radical, R<SP>4</SP> represents an alkyl radical with 1 to 6 carbon atoms or a hydrogen atom, and R<SP>8</SP> stands for an alkyl with 1 to 6 carbon atoms or a hydrogen; with the exception of those compounds of group (a) in which n represents zero or 1 and m represents zero, and (1) every symbol R<SP>1</SP> to R<SP>8</SP> represents a hydrogen atom, or (2) R<SP>1</SP> represents a methyl group, R<SP>2</SP> represents a methyl group or a hydrogen atom, and R<SP>3</SP> to R<SP>8</SP> represents hydrogen atoms; and with the exception of that compound of group (a) in which n represents zero and m represents zero, R<SP>1</SP> and R<SP>7</SP> represent methyl groups and R<SP>2</SP> to R<SP>6</SP> and R<SP>8</SP> represent hydrogen atoms and with the exception of 1,3-oxathione-3-oxide, and their preparation, where m is 0 by reacting a thiolalcohol (II) with a compound R<SP>1</SP>-CO-R<SP>2</SP> (III) or an acetal or ketal thereof, in the presence of an acid catalyst and, if desired, oxidizing the product to give the corresponding compound where m is 1. Thiol-alcohols (II) may be made by reacting a suitable unsaturated carboxylic acid or its ester with H 2 S and hydrolysing or reducing the resulting addition compound or by reacting an α,#-unsaturated compound with thio acetic acid and reducing the thio acetate with LiAlH 4 . The compounds of the invention are used in perfume compositions and are used to improve the organoliptic properties of foodstuffs, beverages, animal feedstuffs and tobaccos (see Divisions A2 and A5).
Patent GB-1148508-A (GB)
Title: Lactam polymerisation process
Inventor: MCGRATH HARRY
IPC: C08G69/20
Filed: 1965-07-26
Abstract: 1,148,508. Lewis acid catalysed lactam polymerization. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 July, 1966 [26 July, 1965], No. 31778/65. Heading C3R. Lactams having 7 or more carbon atoms in the ring are polymerized by heating them in an inert atmosphere in the presence of 0À4-30 mole per cent of a Lewis acid selected from BF 3 , SuCl 4 , SiCl 4 , TiCl 4 , SbCl 5 , AlCl 3 , FeCl 3  or CuCl 2 . Lactams specified are caprylactam and dodecanolactam. The lactam may be dissolved in a solvent, e.g. benzene, and any water present removed azeotropically before 0À4-30 mole per cent of Lewis acid is added. Alternatively the Lewis acid may be added to the lactam per se above or below its melting point. 1-10 mole per cent of a viscosity stabilizer, e.g. caprolactam or acetanilide may also be added. If the solvent is a high boiling one it may be retained during polymerization-otherwise it is distilled off. The polymerization may be at 190-310‹ C. under an N 2  atmosphere. The products may be made into fibres and films.
Patent GB-1385090-A (GB)
Title: Roll holder
IPC: A47K10/40
Filed: 1972-07-07
Abstract: 1385090 Roll holder J J SMITH 15 Feb 1973 [7 July 1972 4 Oct 1972] 31871/72 and 45683/72 Heading A4G A holder for a roll having a cylindrical axial cavity comprises a support frame 21 having spaced apart arms 22, 23 with aligned holes 61 and an inwardly directed roll centre 25 attached to each of said arms by fastening means passing through said holes and adapted to support the roll at opposite ends of its axis, one or each roll centre comprising a pair of telescopically arranged cup-shaped members urged to their extended position by resilient means. In one embodiment Fig. 1, one of the pair of cup-shaped members has an internal lip and the other a co-operating external flange to limit relative axial movement caused by a spring 33. The roll centre is fastened to the arm 22 of the frame 21 by a peg 59 having a bifurcated end portion, or by a screw fastener. The flange and or the lip may be notched to facilitate assembly. In the embodiment of Fig. 16 a roll centre comprises a dome shaped member 50 received within a cup shaped member 46. The member 50 may have one or more grooves 55 to assist in locating a roll.