baber/WOPTO huggingface dataset:
Patent GB-475068-A (GB)
Title: Manufacture of unsaturated alcohols
IPC: C07J1/00
Filed: 1936-06-18
Abstract: Cyclic alcohols containing an unsaturated cyclopentanophenanthrene nucleus are prepared by subjecting a compound of the type of dehydroandrosterone to catalytic reduction under such relatively mild conditions of temperature and pressure that the carbon double linkage remains unattacked.  The preferred conditions comprise reduction in neutral or alkaline medium without external supply of heat. Catalysts mentioned are nickel, cobalt or platinum oxides, and solvents used include aliphatic alcohols of low molecular weight.  In examples: (1) an alcoholic solution of D <5>,<6>-trans-dehydroandrosterone is reduced in the presence of a nickel catalyst under a slight pressure to give D <5>,<6>-trans-androstene-3 : 17-diol; (2) an alcoholic solution of trans-dehydroandrosterone is reduced in the presence of a platinum catalyst to give the corresponding unsaturated diol.  Specifications 443,463 and 447,185 are referred to.  The Specification as open to inspection under Sect. 91 comprises also the reduction of derivatives of the free oxy-ketones such as their esters or ethers, and contains the following additional example: an alcoholic solution of trans-dehydroandrosterone-acetate is hydrogenated in the presence of a nickel catalyst to give D <5>,<6>-androstene-3 : 17-diol-3-acetate. This subject-matter does not appear in the Specification as accepted.
Patent GB-1159004-A (GB)
Title: Granulation.
Inventor: JEWELL ROBERT EDWIN
IPC: C05B7/00
Filed: 1966-04-19
Abstract: 1,159,004. Granulated NPK fertilizer. FISONS FERTILIZERS Ltd. 15 May, 1967 [19 April, 1966], No. 17020/66. Heading C1B. A granular NPK fertilizer is produced by spraying an ammonium nitrate/phosphate melt containing 0-5% of water at 120-200‹ C. on to a potash bed which has been preheated to 120-125‹ C. and which is agitated in a rotating drum through which hot air at 190-220‹ C. is passed. The granules and air may leave the drum at 50-110‹ C. and 100-120‹ C. respectively. The potash may be in the form of potassium chloride, sulphate or carbonate and may contain recycled material. The ratio of recycled material to granular material of desired particle size may be 3-4 : 1. The ammonium phosphate may have an N : P ratio of 0À9-2 1. The ammonium nitrate/phosphate may have an N : P 2 O 5  ratio of 1 : 0À1-2. The granular product may be blended with granular monoammonium phosphate, ammonium phosphate/nitrate or ammonium sulphate/nitrate.
Patent GB-777958-A (GB)
Title: Improvements in or relating to plate-link chains for working over pulleys
Inventor: ARNOT ALFRED ERWIN REGINALD
IPC: F16G1/24
Filed: 1954-06-10
Abstract: 777,958. Chains. KAYE, E., and SHARP, J. R. June 10, 1955 [June 10, 1954], No. 17050/54. Class 24. [Also in Group XXIV] A multiple-plate link chain has shaped projecting portions 23, 24 on the links for engagement with the peripheral surface of a pulley 15.
Patent GB-569311-A (GB)
Title: Improvements in or relating to fluid pressure operated ram and cylinder apparatus
IPC: B66F3/26
Filed: 1943-10-18
Abstract: 569,311. Engine cylinders. SMITH'S JACKING SYSTEMS, Ltd., and SESSIONS, D. W. Oct. 18, 1943, No. 17070. [Class 122 (i)] A bearing ring, for the ram of a hydraulic lifting jack &c., is a push fit in the cylinder and is retained by a spring ring engaging a groove therein. Two bearing rings 16, 18 spaced by a sleeve 17 may be held in engagement with an abutment 15 by a spring ring 22. A packing ring 24 in the cylinder end may be retained by a split spring ring 26.
Patent GB-798555-A (GB)
Title: Improvements in or relating to balanced modulator circuits
Inventor: COOPER VICTOR JAMES
IPC: H04N9/65
Filed: 1955-06-14
Abstract: 798,555. Automatic electric control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. April 3, 1956 [June 14, 1955], No. 77088/55. Class 38 (4). [Also in Group XL (c)] In a balanced modulator for television signals the modulator output during line synchronizing pulses is passed through an electronic switch and the rectified out-. put of the switch applied as negative feedback to the input of one at least of the modulating valves so that the balanced modulated output at these instants is made zero. As shown, synchronizing pulses P and colour signals from a source 1 are applied through a phase splitter 2 in opposite phases to grids 3a of modulating valves 3 and subcarrier frequency from a source 8 applied through an amplifier 9 in opposite phases to suppressor grids 3b of the valves 3. The combined outputs of the valves 3, after suppression of any harmonics by a circuit 14 are applied to an output terminal 15 and to a switch valve 21 rendered conductive only during synchronizing pulses by pulses applied to its cathode from the source 1 through valves 18, 19. The sub-carrier frequency output of the switch 21 and also sub-carrier from the amplifiers 9, 22 may then be both applied to a rectifier 23-26 whose D.C. output variable corresponding to the sense of any unbalance of the modulating valves 3 is applied in series with the bias from source 20 to one of the modulating valves 3. The source 1 also passes its output to a synchronizing pulse separator valve 4a, whose anode circuit includes a delay line 4b with short-circuited remote end so that partly overlapping negative-going pulses and reflected positive-going pulses produce an output P<SP>1</SP> of alternately negative and positive-going narrow pulses, of which the negative-going are removed by a valve 4d, and positive and negative-going pulses derived from a phase splitter 4e and used as clamping pulses to connect the grids 3a of the modulating valves 3 to bias sources HT+ and 29 through D.C. restoring diode bridges 5a, 5b at back porch intervals succeeding the synchronizing pulses. The transformer winding 10a and amplifier 22a may be omitted so that the system only operates to correct errors in one sense. Also a reversing switch may be connected to the rectifier output so that the correction can be applied to either modulating valve
Patent GB-567776-A (GB)
Title: Improvements in or relating to light activated adhesives
IPC: C08F291/18
Filed: 1942-12-01
Abstract: Surfaces, of which not more than one is opaque, are bonded together by interposing a cementing layer comprising a liquid photopolymerizable organic compound containing a CH2 = C< group, and a photopolymerization catalyst and exposing it to light through a transparent member of the assembly.  Specified photopolymerizable compounds are acrylic and methacrylic acids, esters, amides and nitriles; methyl vinyl and phenyl vinyl ketones; acrolein; vinyl thioacetate, propionate, isobutyrate, acetate and chloracetate; indene and styrene; divinyl and phenyl vinyl ethers; N - vinyl succinimide; vinyl naphthalene; vinylidene chloride; ethylidene dimethacrylate; methylene dimethacrylate; chloroprene and isoprene. The photopolymerization catalyst is an organic compound having a chain of two or three adjacent carbon atoms, each attached to one oxygen atom, at least one of the oxygen atoms being linked by a double bond to a carbon, no oxygen atom being attached to more than one of the carbon atoms, any valencies of the oxygen atoms not satisfied by an adjacent carbon atom being satisfied by hydrogen or a monovalent hydrocarbon radical, and the valencies of the carbon chain not satisfied by oxygen being satisfied by hydrogen or monovalent aliphatic or aromatic radicals.  Preferred classes are alpha-carbonyl alcohols (R.CO.CHOH.R1), acyloins and polyketaldonyl compounds (R.(CO) .R1, where x = 2 or 3).  Specified are glycollic aldehyde, benzoin, acetoin, butyroin, 3-hydroxy-4-methyl-pentanone-2, toluin, tert.-butylbenzoin, 12-hydroxy-13-ketotetracosane, o- and p-tert.-butyltoluin, diacetyl, pentandione - 2.3, octanedione - 2.3, 1-phenyl butanedione-1.2, benzil, 2.2-dimethyl-4 - phenyl butanedione - 3.4, glyoxal, phenyl glyoxal, diphenyl triketone and 1.2-cyclohexanedione.  The photopolymerizable compound may be mixed with a polymer of a compound containing a CH2 = C< group to form a syrup before cementing, and may contain also benzoyl, lauroyl, acetyl, butyroyl, succinyl peroxides or ascaridole.  Opaque surfaces listed include metals, cloth, paper, wood, leather, natural or synthetic rubber; and transparent surfaces listed include glass and polymeric materials derived from polymers of compounds containing a CH2 = C< group.  The irradiation by light may be stopped before polymerization is complete.  The invention is of particular use in the uniting of sheets of polymethyl methacrylate, e.g. for aircraft, and includes the filling of crevices in sheets of polymethyl methacrylate.  Specifications 567,777 and 567,778 are referred to.
Patent GB-259289-A (GB)
Title: Method of protecting articles of oxidisable metals or metal alloys from oxidation, deterioration or corrosion
IPC: C23C4/18
Filed: 1925-07-04
Abstract: 259,289. Metallisation, Ltd., and Ballard, W. E. July 4, 1925. Coating.-In a method of protecting articles of oxidizable metals against oxidation, corrosion, &c. the cleaned article is coated with a very thin deposit of aluminium and then provided with a coating of a reducing substance or a substance which on being heated forms a coating of a reducing substance, the treated article then being heated to a temperature in the vicinity of the melting point of aluminium so as to form an adhering aluminium-containing coating on the article. The heating of the article may be effected, especially in the case of fire-bars, &c., in situ and when the article is in service. The reducing substance may comprise a carbonaceous substance such as lamp black, bitumastic, paint, oil waste or a mixture of charcoal and graphite alone or in admixture with suitable fluxing compounds. Instead of aluminium, aluminium chromium, aluminium silicon, or aluminium copper alloys may be used. Specification 204,384 is referred to.
Patent GB-940716-A (GB)
Title: Process for dyeing and printing polypropylene fibres
IPC: D06P3/79
Filed: 1962-05-04
Abstract: Monoazo dyes of the formula <FORM:0940716/C3/1> wherein X is a halogen atom, Y and Z are hydrogen or halogen atoms, methyl, ethyl, methoxy, ethoxy or trifluoromethyl radicals, v and w are 1 or 2, R1 is a hydrogen atom or an alkyl, aralkyl, cycloalkyl or aryl radical and R2 is an alkyl, aralkyl, cycloalkyl or aryl radical which alkyl, aralkyl, cycloalkyl or aryl radicals do not carry the hydrophilic substituents-OH, -COOH, -SO3H, sulphonamide, bis-sulphonamide or carboxamide are prepared by the usual diazotization and coupling procedure and employed to dye fibres of polypropylene.ALSO:Fibres of polypropylene are dyed or printed with dyestuffs of the formula: <FORM:0940716/D1-D2/1> wherein X is a halogen atom, Y and Z are hydrogen or halogen atoms, methyl, ethyl, methoxy, ethoxy or trifluoromethyl radicals, v and w are 1 or 2, R1 is a hydrogen atom or an alkyl, aralkyl, cycloalkyl or aryl radical and R2 is an alkyl, aralkyl, cycloalkyl or aryl radical which alkyl, aralkyl, cycloalkyl or aryl radicals should not carry the hydrophilic substituents -OH, -COOH, -SO3H, sulphonamide, bis-sulphonamide or carboxamide.  The dyestuffs may be applied from a dyebath at 50-120 DEG C. or by padding, intermediately drying at 70-90 DEG C. and thermofixing at 130 DEG C.  The dyebath, padding liquor or printing paste may also contain glycerol, ethylene glycol, an aliphatic hexahydric alcohol, aliphatic carboxylic acids with more than 7 carbon atoms, decalin, 4-hydroxydiphenyl, esters of aromatic carboxylic acids, the dispersing agents: sodium salts of sulphonated naphthalene-formaldehyde condensates, sulphosuccinic acid esters, turkey red oil and the emulsifying agents: polyglycol ethers especially oleyl alcohol-polyglycol ether.  The printing pastes may further contain the thickening agents methyl cellulose, carob seed flour, industrial gum and sodium alginate and the usual additives methylated alcohols, sodium m-nitrobenzene sulphonate, emulsions of sulphonated oils, urea, thiourea and thiodiglycol.  The printing pastes may be applied in any known manner whereupon the printed material is dried and, if desired, steamed, preferably in a closed vessel at a temperature of 110-130 DEG C.  The dyed or printed materials may be finished in a soap or detergent solution.  Examples are given.
Patent GB-688450-A (GB)
Title: An improved catheter for medical or hygienic use
IPC: A61M25/04
Filed: 1951-07-20
Abstract: 688,450. Catheters. MERENLENDER, I. July 20, 1951, No. 17243/51. Class 81 (ii). A catheter is designed for retention in the body by expansion of its inner end, this end being provided with a number of longitudinal slits and means being provided for retracting the tip so as to cause bulging of the wall between adjacent slits. A flexible wire or thread E is attached to the inner end of the catheter tube and is also fastened to a remote part of the tube by means of a collar or helix J secured by an external clamping nut N. A collar K, secured by a similar clamping nut N<SP>1</SP>, serves to provide a finger hold for the tube, slightly inward of the nut N, and when the two are drawn apart the inner tip of the catheter tube, weakened by longitudinal slits, bulges outwards to form a retaining rim D. In the form shown, the nuts N, N' are held apart by telescopic sleeves R, S co-operating with latches Q but alternative means such as screw-threaded sleeves or sprung pawls may be used.
Patent GB-1291808-A (GB)
Title: Improvements in or relating to rail vehicles
IPC: B60T8/58
Filed: 1971-05-26
Abstract: 1291808 Aritiskid braking systems KRAUSSMAFFEI AG 26 May 1971 [29 May 1970] 17261/71 Heading F2F In an antislip or antiskid device for rail locomotives there is included a circuit which automatically terminates the counter-measures of the device if such termination has not taken place after a predetermined time. A D.C. generator rotatable with an axle or through gearing delivers its current to a differentiation circuit R1-C1, the voltage being proportional to wheel speed so that slipping causes a reduction in voltage and an unsteady current rise in the circuit R1-C1 to which an antislip device GS responds and switches on a relay A which is arranged to be left switched on for a predetermined time to energize an electromagnetically operated valve, to reduce braking pressure, via a contact a1 and open a contact a2 so that a capacitor C2 is charged through a resistor R2. If the relay remains switched on through a malfunction the voltage on capacitor C2 rises and causes a transistor T1 to become conductive and energize a polarized relay B to open a contact b1 and de-energize the system to return braking to normal.
Patent GB-1423715-A (GB)
Title: Suspended tent
IPC: E04H15/42
Filed: 1973-04-10
Abstract: 1423715 Tents SUMITOMO RUBBER INDUSTRIES LTD 10 April 1973 17268/73 Heading E1A A tent comprises two arcuate frame members 11 adapted to be located in the ground after passing through apertured carrier lugs 4 in a ground sheet and a covering adapted to be suspended from the frame by hooks arranged along the side edges thereof and at the ridge. Each frame member is made up from a plurality of resilient sections of a spigot-andsocket construction and may be made of metal or glassfibre re-inforced plastic piping. The ridge is defined by a sleeve 13 in which a rod is inserted.
Patent GB-1347532-A (GB)
Title: Process for the preparation of n,n-disulphide compounds
IPC: C07D235/02
Filed: 1971-05-26
Abstract: 1347532 N,N<SP>1</SP>-disulphide compounds SANKYO CO Ltd 26 May 1971 [26 May 1970] 17306/71 Heading C2C Compounds of general Formula I: may be prepared by reacting an amine derivative of Formula II: with sulphur monochloride in the presence of an acid-binding agent which is a metal salt of a carboxylic acid, in an acid amide or nitrile solvent; wherein R 1 , R 2 , R 3  and R 4  which may each be the same or different, each represents C 1-4  alkyl; or R 1  and R 2  together with the C atom to which they are attached, and/or R 3  and R 4  together with the C atom to which they are attached, form a 5- or 6-membered saturated, alicyclic group; and X represents one of the group The acid-binding agent may be a Na, K, Ag, Zn or Al salt of acetic, monochloroacetic, benzoic, p-methyl benzoic or p-anisic acid. The reaction may also be carried out in the presence of an acidic dehydrating agent, e.g. phosphoric anhydride.
Patent GB-584332-A (GB)
Title: Improvements in and connected with childrens' carriages and the like
IPC: B62B7/10
Filed: 1944-09-12
Abstract: 584,332. Multiple fastenings for sides and underframes of collapsable carriages. TWIGG & CO., Ltd., C., COOKLIN, L., and HOLLIS, T. R. Sept. 12, 1944, Nos. 17391 and 17392. [Class-44] [Also in Group XXXII] A fastening for locking the lid panels of a collapsable carriage described in Group XXXII to the sides and simultaneously locking the chassis units in operative position comprises a pair of oppositely directed toggle levers 22, one of which is extended to form a handle 21. These levers are joined by a coupling 23 connected with a block sliding in the vertical slot 24 of a guard plate 25 fixel to the lid panel 4 transversely across the marginal stiffening plate 20. At the outer 'ends of the levers 22 are pivoted bolts 26 sliding in guides 27, 28 in the lid panel which, when the handle 21 is fully depressed engage brackets 19 secured to the pivotal chassis unit so locking the latter. Movement of the links 22, through links 29 connected by pins 30 through slots in the lid panel with latching plates 11 on the opposite side of the panel, moves the edge of the hole in each latching plate into engagement with an undercut in a corresponding hasp or stud member 12 secured to the side panel and so locks the lid panel to the side.
Patent GB-1279332-A (GB)
Title: Improvements in clamping means for clamping and holding hollow bodies particularly tubes
IPC: F16L17/00
Filed: 1970-04-13
Abstract: 1279332 Releasable fastenings SCHLOEMANN AG 13 April 1970 [2 May 1969] 17416/70 Heading E2A In a contracting or expanding clamp for gripping the outside or inside surface respectively of a pipe 7, 17 pressure is applied from a fluid on a resilient sleeve 1, 11 acting on segmental gripping shoes 6 which are located by T-shaped guides 3, 13 secured to the resilient sleeve. The shoes are lifted by spring rings 9, 19 in circumferential grooves. In the form shown in Fig. 8, the guides 23 are of double T shape the segments 26 being spaced by springs 29.
Patent GB-650073-A (GB)
Title: Golf game
IPC: A63B69/36
Filed: 1948-06-29
Abstract: 650,073. Feeding golf balls from hoppers. WILLIAMS, E. E. June 29, 1948, No. 17493. Convention date, Feb. 18. [Class 78 (i)] [Also in Groups XV, XX and XL (b)] Balls are fed one at a time from a hopper 76 to a lift 78 by a gate 86 having two fingers 88 oscillated by a rod 92 engaged by a pin 94 on the lift 78. The lift 78 is raised or lowered by a rack 80 and pinion 82 driven by a motor 84 which can be reversed by a switch 110. The lift when raised pushes up the tee 48 which then falls under the ball and after the lift has been lowered, the ball is held on the tee by a vacuum created by a device 60. A switch 70 is actuated by breaking the vacuum when the ball is driven and is connected to a solenoid S which prevents the complete descent of the lift as long as a ball is on the tee.
Patent GB-736207-A (GB)
Title: Improvements in or relating to pneumatic conveying systems
Inventor: EVANS CYRIL HARRY
IPC: B65G53/00
Filed: 1952-07-12
Abstract: 736,207. Pneumatic conveyers. SPILLERS, Ltd. Sept. 24, 1953 [July 12, 1952], No. 17642/52. Class 78 (1). In pneumatic conveyers, particularly those actuated by low-pressure air, material is fed from a hopper 2, Fig. 1, by a pipe 1 which extends nearly to the bottom of the conveying conduit 3. The material forms a heap 4 and if it is not removed by the air stream, it seals the outlet from the pipe and the supply of material is stopped. In a modification the pipe 5, Fig. 3, which is of square cross-section, extends to the bottom of the conduit and has a discharge opening 6 in its side facing downstream. In a further modification the upstream side 9, Fig. 5, of the pipe is streamlined.
Patent GB-1460944-A (GB)
Title: Control valve unit including a hydraulic servo motor
IPC: F01D17/14
Filed: 1974-04-23
Abstract: 1460944 Controlling servomotors STALLAVAL TURBIN AB 23 April 1974 [24 April 1973] 17647/74 Heading G3P A control valve unit 9 for an hydraulic servomotor 7 operating the main control valve 3 of a turbine 2, which valve unit is intended to control the flow of fluid to and from the servomotor for  opening and closing the valve, characterized in that the unit comprises a first valve 13 Fig. 2 connected between the fluid source 8 and exhaust 17, and the servomotor, and controlled from a turbine regulator 10 for normal operation and a second valve 14 for rapid closing of valve 3, valve 14 being connected between servo 7 and exhaust 18 and being controlled by a signal 15. In operation, a pump 8 supplies hydraulic fluid to valve 13 which is controlled by regulator 10 transmitting analogue signals to the valve. A signal is also transmitted to valve 14 from regulator 10 through a threshold valve emitter 16 and OR-gate 15, and from a safety and alarm device 25. If there is a major or partial drop-out of load on the turbine driven generator network 5 the signal from system 10 to valve 13 is also connected through OR-gate 15 so that a signal greater than threshold value m actuates valve 14 and valve 3 is rapidly closed temporarily, until the signal falls below the level m. If there is a total drop-out of load, device 25 actuates valve 14 to close valve 3. In a modification, valve 13 is split into two valves (19), (20) Figs. 3, 4 (not shown) throttling means (21), (22) or constant flow valves (23), (24) being provided.
Patent GB-700157-A (GB)
Title: Improvements in heat interchangers
IPC: F24H1/14
Filed: 1952-07-14
Abstract: 700,157. Tubular heat-exchangers. JUNKERS & CO. GES. July 14, 1952 [July 12, 1951], No. 17671/52. Class 64(3) In a heat-exchanger for a gas-heated water heater, the downstream edges of spaced transverse sheet metal laminae 2 carried by parallel pipe sections 1 are wave-shaped in the planes of the laminae, the troughs 5 and crests 6 being aligned respectively with the pipe section and with the spaces between the pipe sections. The upstream edges 7 of the laminae are also wave-shaped.