baber/WOPTO huggingface dataset:
Patent GB-673601-A (GB)
Title: Process for the recovery of vitamin b
IPC: A61K31/00
Filed: 1950-08-18
Abstract: Vitamin B12 is purified by subjecting a mixture containing vitamin B12 and other contaminating materials to countercurrent distribution utilizing a two-phase partition solvent, and removing the fraction thereof having a vitamin B12 content enriched as compared with the vitamin B12 content of the material treated.  As solvent mixture there may be used a mixture of benzyl alcohol or cresol-toluene or cresol-carbon tetrachloride and water.
Patent GB-491349-A (GB)
Title: Benzyl-oxyalkyl aromatic sulphonates, and method of preparation
IPC: C07C303/28
Filed: 1937-07-26
Abstract: Benzyloxyalkyl esters of aromatic sulphonic acids are prepared by treating a glycol monobenzyl ether with an aromatic sulphonyl chloride in the presence of a basic condensing agent, such as pyridine.  Examples are given of the manufacture of esters from (1) ethylene glycol monobenzyl ether and benzenesulphonyl chloride; or (example 2) p-toluenesulphonyl chloride; (3) trimethyleneglycol monobenzyl ether and p-toluenesulphonyl chloride; and (4) propylene glycol 1-monobenzyl ether and p-toluenesulphonyl chloride.  The benzyloxyalkyl sulphonates may be used to convert hydroxy or amino compounds into O- or N-benzyloxyalkyl derivatives, and these derivatives may be converted, by acid hydrolysis, into hydroxyalkyl derivatives.  In examples of these processes, (5) phenol and the product of example 2 yield phenyl benzyloxyethyl ether; (6) p-aminophenol and the product of example 2 yield p-di(benzyloxyethyl)aminophenyl benzyloxyethyl ether; the sulphate of this product is mentioned; the hydrochloride of the product, by hydrolysis with dilute hydrochloric acid, yields phenylmorpholine p-hydroxyethyl ether, from which an acetate is obtainable by reaction with acetyl chloride; (7) 8-hydroxyquinoline and the product of example 2 yield the benzyloxyethyl ether of 8-hydroxyquinoline; (8) the product of example 7 is hydrolysed with dilute hydrochloric acid to yield the hydroxyethyl ether of 8-hydroxyquinoline. Specification 491,351 is referred to.
Patent GB-1444831-A (GB)
Title: Method for separation of a mixture of a polyester and a cellulose derivative
IPC: B29B17/02
Filed: 1974-05-09
Abstract: 1444831 Froth flotation MITSUI MINING & SMELTING CO Ltd 9 May 1974 [8 Dec 1973 (2)] 20612/74 Heading B2H A mixture containing a polyester and a cellulose derivative is separated into its constituents by flotation in an aqueous medium. A wetting agent such as a lignin sulphonate, tannic acid, a quebracho extract, gelatin, glue and saponin may be added to the mixture, in which case it is the cellulose derivative which is floated. If no wetting agent is added it is the polyester which is floated. A frothing agent such as pine oil, kerosene, cresylic acid, eucalyptus oil, camphor oil, propyl alcohol, amyl alcohol, methyl isobutyl carbinol, pyridine and o-toluidine may be added and gas bubbles may be generated in the aqueous medium by mechanical stirring, by bubbling a gas through the medium, by the release of gases dissolved under pressure, or by electrolysis. Suitable gases include air, oxygen, nitrogen, carbon dioxide and argon. The method may 'be applied to mixtures containing polyethylene terephthalate, an alkyd resin, an unsaturated polyester resin, or a maleic acid resin as the polyester and cellulose diacetate, cellulose triacetate or nitrocellulose as the cellulose derivative. The aqueous medium may contain halides such as NaCl, MgCl 3 , and MgBr 2 ; sulphates such as MgSO 4 , CaSO 4 , K 2 SO 4  and Na 2 SO 4 ; and bicarbonates such as Ca(HCO 3 ) 2  and NaHCO 3 , and may be heated.
Patent GB-809600-A (GB)
Title: Improvements in and relating to the regulation of internal combustion engines
IPC: F04B7/00
Filed: 1955-07-15
Abstract: 809,600. Fuel injection pumps. REGIE NATIONALE DES USINES RENAULT. July 15, 1955 [Dec. 23, 1954], N9. 20622/55. Class 102(1). [Also in Groups XXVII] In an internal combustion engine having an injection pump with plungers 2 arranged in a circle, the output of the engine is controlled by holding the pump inlet valves 5 open to cut out some of the injections. The valves 5 are actuated through adjustable rocker levers 21 by a distributor unit 36 comprising a rotatable and axially slidable drum the surface of which is divided up into a number of sections V-XII, Fig. 4, each containing a progressively increasing number of cam grooves 49, Fig. 12. Each rocker 21 carries a cam-follower 24 cooperating with the related section of the drum 36, each valve 5 being held open by the rocker 21 when its associated cam-follower 24 is on a raised part of the drum, the grooves 49 permitting the valves 5 to close during the delivery strokes of the plungers 2 to allow injection to take place. In the embodiment shown comprising six plungers 2 feeding a six-cylinder engine, the section V of the drum has no groove 49, so that no injections take place and the sections VI . . . XII have respectively one to seven grooves 49 so that as the drum 36, which rotates at 1/7 crankshaft speed for a twostroke engine and 1/14 crankshaft speed for a four stroke engine, is moved axially the power output increases from 1/7of the full output for section VI to the full output for the section XII. The drums 36 is driven from the pump driving shaft 17 through helical gears 33, 34, and spur gears 35, 37, the gear 35 being integral with the gear 34 and freely rotatable on a shaft 41 which is adjustable axially by a screw 42 to move the gear 34 relative to the gear 33 to adjust the timing of the pump delivery strokes. The gear 35 is of a length permitting the axial movement of drum 36. The rockers 21 are pivoted in cylindrical stubs 26 which are adjustable axially to vary the clearance between the cam followers 24 and the drum 36, the rockers also being adjustable laterally to permit of individual variation of the delivery from each pump. The plungers 2 are actuated through push rods 15 by a swash-plate 16 and the drum 36 is adjusted axially by an accelerator pedal connected to a slidable rod 40, Fig. 1 carrying a fork 38 embracing a collar 39 of the drum 36.
Patent GB-731500-A (GB)
Title: Improvements in and relating to magnetic cores
IPC: H01F27/25
Filed: 1953-07-27
Abstract: 731,500. Transformers and inductors. BRITISH THOMSON-HOUSTON CO., Ltd. July 27, 1953 [July 25, 1952], No. 20777/53. Class 38 (2). A magnetic core comprises a number of similar spirally wound core sections 1 axially disposed on a non-magnetic rod 5 with insulation 9 between the sections. Each section may be slotted to accommodate an insulating spacer 11 one end of which locates in a slot 14 in the rod 5. The ends of the rod 5 abut the yoke pieces 8 of the core and the insulating spacer 11 is retained by a non-magnetic band 12.
Patent GB-878715-A (GB)
Title: Seats
Inventor: YEOMANS WALTER ALLEN
IPC: B61D33/00
Filed: 1958-06-30
Abstract: 878,715. Seats. ACCLES & POLLOCK Ltd. June 25, 1959 [June 30, 1958], No. 20834/58. Classes 52(1) and 52(2). A resilient interconnection consisting of a bolt and resilient bushes is used to form the bearing mount for an angularly adjustable back rest. As shown, seat 15 and back rest 16 are mounted to rotate together about bearings each consisting of rubber bushes 21 on a bolt 19. A bracket extends from between the bushes to fixed tube 11 and a bracket 18 attached to one end of the bolt supports the movable frame 17. A lever controlled locking plate 24 engages a pin 23 on the frame 17 which is returned to the upright position by a compression spring 28.
Patent GB-621510-A (GB)
Title: Improvements in tap wrenches
IPC: B23G1/46
Filed: 1947-02-24
Abstract: 621,510. Tap wrenches. WARREN, P. H., and SKERRATT, H. C. Feb. 24, 1947, No. 20843/46. [Class 61(iii)] A tap wrench for use in inaccessible places comprises a body member 1 provided at its lower end with a chuck 9 for holding the tap 5, and a handle member 2. The latter has a series of slots 20, any one of which may be engaged with a diametrical rib 13 on the body member. The members normally are held together by a spring 12 anchored to pins 16, 17 and located in bores 11, 14 in the members. The member 1 is slidable in a sleeve 22 fitted tightly to the member 2. The rib and slots may be replaced by interengaging teeth.
Patent GB-275664-A (GB)
IPC: C10G1/08
Filed: 1927-08-08
Abstract: 275,664. I. G. Farbenindustrie Akt.- Ges. Aug. 7, 1926, [Convention date]. Hydrogenation, destructive.-In processes for the destructive hydrogenation of carbonaceous materials using a large excess of hydrogenizing gas in the form of a stream and under a pressure of at least 50 atmospheres, the catalysts consist of or contain either carbides in the absence of nitrogen or nitrogen compound, or else active carbon with an element, other than nitrogen, of Group 5 of the Periodic system or a compound of such element. Preferably the hydrogen is circulated for re-use. Hot portions of the reaction vessel &c. are kept free from iron or other materials causing the formation of methane and carbon, and are made of or coated with aluminium, highly alloyed steels, or the like, end the materials may be stirred, sprayed, or atomized, or the carbonaceous material spread in thin layers, or the gas introduced through a porous layer or plate. In an example, crude mineral oil is mixed with aluminium phosphate as catalyst, and treated at 420‹ C. and 200 atmospheres with a current of hydrogen in large excess. The vapours of the 60-70 per cent of middle oil obtained are passed at 460‹ C. in a large excess of hydrogen over a catalyst obtained by heating to 800‹ C. alderwood charcoal impregnated with phosphoric acid. The product contains 80-90 per cent of low boiling hydrocarbons. The hydrogen is recirculated at the same pressure for re-use. Specifications 28460/11 and 272,194 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) describes the use as catalysts of carbides in any circumstances, active carbon, or metalloids such as boron, silicon, phosphorus, arsenic, selenium, tellurium, or halogens, or their compounds. The metalloids may be used with elements of group 2-8 of the periodic system. Specified catalysts are phosphoric acid, arsenious acid, silicic acid, boric acid, hydrofluoric acid, hydrochloric acid, selenious acid, or salts thereof, silicon carbide, calcium phosphate, molybdenum phosphate, tungsten phosphate, iron phosphate, arsenious acid alone or with molybdenum or tungsten, iron silicide containing 15 per cent of silicon, active silica, hydrosilicates, borides of titanium or. iron, calcium fluoride, molybdenum with 10 per cent of aluminium chloride or cadmium chloride, and molybdic acid with sodium selenite. This subject-matter does not appear in the Specification as accepted.
Patent GB-864698-A (GB)
Title: Benzimidazoles
Filed: 1958-06-30
Abstract: The invention comprises 1-tertiary amino-alkyl-5-nitro-2-naphthylmethyl benzimidazoles of the formula: <FORM:0864698/IV (b)/1> and acid addition salts thereof, where A is a C1-5 alkylene group, e.g. ethylene, R is an amino group disubstituted by C1-5 alkyl groups, e.g. diethylamino and R1 is an a -naphthyl group, optionally bearing halogen or C1-5 alkyl or alkoxy substituents.  The compounds are prepared either by introducing an aminoalkyl radical into a 5-nitro-2-naphthylmethyl-benzimidazol by reacting it with a reactive ester of an alcohol of the formula R1-A-OH such as a hydrohalic or organic sulphonic ester, R1 being a dialkyamino group or a group which is subsequently converted to dialkylamino, for example a hydroxyl group which may be chlorinated and reacted with a dialkylamine, or by forming the benximidazole ring by subjecting a 2-(R11NH)-5-nitro-aniline or a suitable N-substituted derivative thereof, wherein R11 represents the group R-A- or a group which is subsequently converted thereto such as a halo-alkyl group, to ring closure with a naphthylacetic acid or a reactive functional derivative thereof such as an ester or amino-ether, or with a naphthyl-acetaldehyde or functional derivative thereof, in which case the product must subsequently be oxidised.  As an alternative to the second method, a 2-halo-5-nitro-naphthylacetylaniline may be subjected to ring closure with a dialkylaminoalkylamine.  The products are used pharmaceutically, suitably in the form of their conventional acid-addition salts (see Group VI).ALSO:Pharmaceutical preparations having analgesic activity suitable for enteral, parenteral or topical application comprise compounds of the formula <FORM:0864698/VI/1> or acid addition salts thereof, wherein A is an alkylene group of 1-5 carbon atoms, R is a dialkylamino group, the alkyl groups each having 1-5 carbon atoms, and R1 is an a -naphthyl group optionally bearing halogen or lower alkyl or lower alkoxy substituents (see Group IV (b)) in conjunction with a pharmaceutical organic or inorganic, solid or liquid excipient, suitably in the form of tablets, dragees, ointments, creams, solutions, suspensions or emulsions.  Specified salts are hydrohalides, sulphates, nitrates, phosphates, thiocyanates, acetates, propionates, oxalates, malonates, succinates, malates, methane-, ethane-, hydroxyethane-, benzene- and toluene-sulphonates, and therapeutically active acids.
Patent GB-243288-A (GB)
Title: Improved rosin compound and process for producing the same
IPC: C09F1/00
Filed: 1925-08-20
Abstract: 243,288. Tennant, W. J., (Mills Novelty Co.). Aug. 20, 1925. Resinous compounds. - A resin composition for resining the disc-bow of an eleotrically-played violin comprises a mixture of resin and sandarac, the former comprising at least 80 per cent by weight of the composition, with or without a small percentage of linseed oil. The composition is preferably made by first dissolving the resin and sandarac in a volatile solvent, such as 97 proof alcohol, in a tank A, provided with a heating-jacket 1. The solution is then run into a jacket-fed still B, provided with an agitator 5, where the alcohol is distilled off at a temperature of about 165‹ C. A small percentage of linseed oil may now be mixed into the con- @ents of the vessel, and the composition is drawn off through pipe 17. The composition is then boiled and the froth burned off by applying a flame; the molten composition being poured into moulds to cool. The alcohol vapours are condensed in a coil 12.
Patent GB-1098052-A (GB)
Title: Reinforcing unit for commutators of electrical machines
Inventor: AKUNTS KARLEN ARMINAKOVICH
IPC: H01R39/04
Filed: 1965-05-18
Abstract: 1,098,052. Commutators for dynamo-electric machines. RIZHSKY ELEKTROMASHINOSTROITELNY ZAVOD. May 18, 1966, No. 20933/65. Heading H2A. A reinforcing band for inclusion within a moulded commutator comprises a plurality of turns of wire 1 or tape wound on a base 2, preferably of metal, and having lugs 3 which are crimped over the turns 1. The band may be covered with longstaple plastic material 4. The turns 1 may be of metal or glass fibre.
Patent GB-625118-A (GB)
Title: Carton
IPC: B65D5/60
Filed: 1946-07-12
Abstract: 625,118. Boxes. DEHN, S. G. (Waldorf Paper Products Co.). July 12, 1946, No. 20935. [Class 18] A carton has the sides, ends, flaps and cover folded from one blank and has a moisture-proof liner secured to the blank and protected from damage when the blank is packed flat by having its edges within the confines of the blank. Sides 20, 21, front 22 and rear wall 23 fold up about the base. End flaps 24, 27, fold outside of the sides. Projecting flaps 26 fold inwards on to the top of the contents and assist in folding down the thin material of the liner. The portions 53, 54, of flaps 37, 39 on the cover 30 engage slots 40, 41, in the side panels. A locking tongue 32, engages a slot 33 in the front panel. The contents do not come into contact with the paper board blank and any liquid in the carton cannot spill from the tray formed by the liner.
Patent GB-153980-A (GB)
Title: A switch for closing electrical circuits only by knowledge of a secret combination of symbols
IPC: H01H19/02
Filed: 1919-08-26
Abstract: 153,980. Leede, E. F. W. Aug. 26, 1919. Secret contact-combination switches for the ignition circuits of motor-vehicles, telephones, &c. comprise a number of insulating-disks 1 mounted co-axially on the reduced shank 2 of a fixed insulating end-member 3 which carries a contact u connected to the circuit by the terminal 10 and held in place by the other contact-carrying end-member 4, which screws upon the end of the shank. In the construction shown, the middle rotatable disk is provided with a cupped bridging- contact 7' located in one of a number of holes coaxial with the circuit contacts 5. In one each of the similar holes in the other rotary disks 7, a spring plunger contact 6 is mounted so that, when the correct combination of symbols on the periphery of the disks is arranged in relation to one another and to the fixed end pieces, a through circuit is completed, as shown. The combination may be changed by moving one or both of the spring plunger contacts to another hole in its disk, or the sequence may be changed without altering the combination by interchanging the two outside disks. The switch may be locked in the contact or non-contact position by a bolt passing through vacant alined holes 9 in the disks and end members.
Patent GB-715045-A (GB)
Title: Improvements in water seals for concrete joints in building structures
IPC: E04B1/68
Filed: 1951-09-05
Abstract: 715,045. Seals for joints in concrete structures. HARZA, L. F. Sept. 5, 1951, No. 20966/51. Class 20 (4). [Also in Group XXI] A seal 10 for a joint of a concrete structure, particularly dams and reservoirs, is of rubber, sheet metal or plastic material and has oppositely extending bulbous corrugations 12 embedded in the concrete on each side of the joint. The seal is temporarily attached to an end form board 20 by pins through flanges 16 at the edges of the seal, while the concrete 14 on one side of the joint is cast. A modified seal 32, Fig. 5, has a longitudinal slit 36 extending from one side edge to a longitudinal passage 38 adjacent the other side edge and which is surrounded by a thickened part 44 and is used in an expansion joint which opens and when water exists on one side of a concrete wall, the water enters the slit and expands the seal.
Patent GB-580029-A (GB)
Title: Improvements in or relating to parachute packs
IPC: B64D17/52
Filed: 1944-10-28
Abstract: 580,029. Parachute packs. IRVIN, L. L. Oct. 28, 1944, No. 21055. [Class 4] A parachute pack having main closure flaps and separate compartments for the main and pilot parachute canopies is characterised in that the compartment for the pilot parachute is formed by a flap adapted to be folded into tubular form, one edge of said flap being secured to one of the main closure flaps and the other edge releasably secured to the pack by means which are adapted to be freed by the operation of releasing the main closure flaps. In the form illustrated the flap 11 which forms the compartment for the pilot parachute is secured along one edge to the main closure flap 2, its other edge carrying cones 13 which engage eyelets 8, 10, at the edges of the main flaps 2, 3. The cones may be covered by canvas strips 20, 22, secured-to the flap 3, their free edges being connected by a sliding clasp fastener.
Patent GB-714513-A (GB)
Title: Apparatus for the manufacture of moulded articles having a canvas stiffening or lining
IPC: B29D35/04
Filed: 1951-09-06
Abstract: 714,513. Moulding rubber footwear &c. BAUDOU, A. J. G. June 25 1952 [Sept. 6, 1951], No. 21095/51. Class 87 (2) Apparatus for moulding rubber articles with fabric linings, e.g. rubber boots, comprises a twopart mould 2, 3 and a fabric-supporting core 1, the core having at least one groove or slot 7, opposite the point between the mould parts, for an extensible bag or movable body adapted to complete the outline of the core and thereby to support the fabric 4 in stretched condition. The object is to overcome the disadvantage of the fabric lining being dragged with the rubber away from the core as the mould halves close and being nipped between them, and is accomplished according to the invention by stretching the fabric on the core. In Fig. 5 an air bag is shown inflated and filling the groove 7, and it is fitted with a metal tongue element 9 conforming to the contours of the core and having shoulders which engage shallow flanges 17 of the groove. The groove 7 may be unflanged and the bag 8 without the metal tongue member. Instead of an air bag a rigid body 10, Fig. 6, contoured at 11 to the outline of the core may fit in the groove 7 and be pushed outwards by a link 12 to stretch the fabric 4. The link 12 may be moved by any convenient mechanism, e.g. hydraulic. For stiff or non-extensible fabric the case may have retractable side parts 14 and a retractable middle part 15, Fig. 11; 15 is retracted to allow the fabric to be placed on the core, and 14 and 15 are retracted to facilitate stripping of the moulded rubber boot. The core is of metal and may 'be solid or hollow.
Patent GB-742685-A (GB)
Title: Improvements in or relating to pressed glassware and the manufacture thereof
IPC: C03B11/14
Filed: 1953-07-30
Abstract: 742,685. Pressed glassware. WOOD BROS. GLASS CO., Ltd., WOOD, A. H., and HILL, S. June 24, 1954 [July 30, 1953], No. 21105/53. Class 56 Relates to the production of pressed glassware having portions of different colours, particularly signal-lamp glasses, and especially for car rear-lights having stop or other red lights and a white reversing or number-plate illuminating light. In the form shown in Fig. 1 charges of red and white molten glass 17, 18 are placed in the mould 12 and acted on by the plunger 13 to produce the lamp cover 10 shown in Fig. 2 having a red portion 10a and a clear portion 10b. In the form shown in Fig. 4 the clear portion 22 is firsft pressed and a coloured charge 25 is then inserted and pressed so that it lines a portion of the part 22 as in Fig. 5. The number-plate is illuminated by the light through the unlined part whilst the tail light is provided by the lined part.
Patent GB-1048003-A (GB)
Title: Improvements relating to electrical control units for electrical heating elements
Inventor: HILLS BRIAN
IPC: H05B3/34
Filed: 1962-06-01
Abstract: 1,048,003. Protective systems. MORPHYRICHARDS Ltd. June 4, 1963 [June 1, 1962; July 7, 1962; Aug. 30, 1962], Nos. 21128/62, 26154/62 and 33285/62. Heading H2K. In a circuit comprising an energy or temperature control unit for controlling the current through a heating element, e.g. that of an electric blanket, an electromagnetic protective device is provided to disconnect the element in response to a reduction or interruption of the current not due to operation of the control unit. In one arrangement the device is an electromagnetio relay with opposing windings connected one in series and the other in shunt with the element, so that should the current through the element and series winding be reduced due to a fault the shunt winding opens the relay contacts which are latched open. Interruption or reduction of the current due to the operation of the control unit affects both windings so that the relay is not operated. In other arrangements the device is closed manually and held closed by an electromagnet having a winding which acts as a holding winding when the control unit is operative and one or two further windings to effect the release of the device when the control unit is inoperative and the load current falls.