baber/WOPTO huggingface dataset:
Patent GB-1484801-A (GB)
Title: Aryl-azo-pyridone dyestuffs containing phosphonic acid groups
IPC: C09B29/42
Filed: 1975-04-30
Abstract: 1484801 Aryl-azo-pyridine dyestuffs containing phosphonic acid groups IMPERIAL CHEMICAL INDUSTRIES Ltd 23 March 1976 [30 April 1975] 18011/75 Heading C4P Novel azo dyestuffs of the formula A-N=N-Py where A is an aromatic radical containing one or more phosphonic acid groups and Py is the radical of a pyridone coupling component (including substituted pyridones and pyridones with fused-on rings) are prepared by diazotization and coupling using coupling components PyH or PyCONH 2 . They are used to colour, e.g. natural and synthetic polyamide materials and, particularly, natural and regenerated cellulose textile materials.
Patent GB-693175-A (GB)
Title: New substituted propanolamines and the production thereof
Filed: 1950-07-19
Abstract: The invention comprises carbinols of the formula <FORM:0693175/IV (b)/1> where R is a straight or branched aliphatic residue of 2-6 carbon atoms.  These are made by (1) reducing the corresponding ketones by catalytic hydrogenation; (2) acid or alkaline hydrolysis of <FORM:0693175/IV (b)/2> where R1 is a sulphonic acid residue; (3) acid hydrolysis or catalytic hydrogenation of compounds of the above formula (R1=benzyl) or their N-benzyl derivatives; (4) catalytic hydrogenation of the dibenzyl ethers of the corresponding ketones; (5) catalytic hydrogenation of a mixture of 1-(31 : 41-dihydroxyphenyl)-2-aminopropanol or -aminopropanone or their dibenzyl ethers and an aralkyl aldehyde or ketone; (6) catalytic hydrogenation of a mixture of 1 - (31 : 41 - dihydroxyphenyl) - propanedione or its dibenzyl ether and an aralkylamine; or (7) catalytic hydrogenation of a mixture of 3 : 4-dihydroxyphenyl-acetyl-carbinol and an aralkylamine.  The last method at low temperatures gives an optically active product if the starting material is active.  In all cases the products may be separated into stereoisomeric forms and/or resolved.  In methods (5)-(7) any double bonds in the aralkyl residue are simultaneously reduced, a palladium catalyst being preferable. Examples show the preparation of the following carbinols and their hydrochlorides: 1-(31 : 41-dihydroxyphenyl) - 2 - (b  - phenylethylamino) - 1 - propanol by methods (1), (2) and (3); 1-(31 : 41-dihydroxyphenyl) - 2 - (g  - phenylpropylamino)-1-propanol by methods (4), (5) and (6); 1 - (31 : 41 - dihydroxyphenyl) - 2 - (a  - methyl-g  - phenylpropylamino) - 1 - propanol by method (4); 1-(31 : 41-dihydroxyphenyl)-2-(a -methyl - d  - phenylbutylamino) - 1 - propanol by method (3).  The starting materials are made as follows: method (1)-see Specification 693,210; method (2) by reducing the corresponding aminoketone e.g. with aluminium amalgam or by catalytic hydrogenation; methods (3) and (4), as in (2), reduction in the case of (3) being effected by hydrogenation with a nickel catalyst.  For method (7), l-3 : 4-dihydroxyphenyl-acetyl-carbinol is produced from protocatechuic aldehyde by means of fermenting yeast.
Patent GB-617519-A (GB)
Title: Improvements in antennas
IPC: H01Q1/38
Filed: 1946-06-15
Abstract: 617,519. Aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 15, 1946, No. 18050. Convention date, April 23, 1942. [Class 40 (vii)] A radio antenna comprises a thin film of conductive material disposed on a relatively non-conductive supporting member and arranged so as to constitute a dipole, and, to compensate for loss of impedance due to said non-conductive supporting member, the dipole is arranged to have a resonant frequency higher than the operating frequency and is inductively loaded so as to resonate at that frequency. An aircraft tail assembly 1 having a horizontal portion 3 which is non-conductive may have sprayed or plated thereon metal dipole elements 5, preferably of copper. Swept-back portions 9 are added to give radiation to the sides of the craft; if these are a quarter wavelength long it is stated that the radiation will be omnidirectional. To minimize dielectric losses the films 5 are extended over the leading edge of the fin 3 and have a corresponding configuration on the underside. To increase the impedance of the dipole, for matching purposes for example, the elements are made shorter to resonate at a frequency higher than the operating frequency and the antenna its tuned by an inductive impedance 7 in the form of a film similar to that forming the antenna. For broad resonance the elements 5 are made wide in proportion to their length. The Specification as open to inspection under Sect. 91 comprises also a frame aerial composed of strips of metallic film on an insulating support (Fig. 2, Cancelled and not shown). The back face of the support also carries a similar frame inter-connected with that on the front face. This subject-matter does not appear in the Specification as accepted.
Patent GB-862167-A (GB)
Title: Improvements in spindles for textile spinning and twisting machines
Inventor: WESTALL ARTHUR
IPC: B65H57/20
Filed: 1958-06-06
Abstract: 862,167. Flyers. T.M.M. (RESEARCH) Ltd. Aug. 17, 1959 [June 6, 1958], No. 18170/58. Class 120(2) A spinning spindle blade carries a rotatable flyer between a spring-biased catch at the blade tip and a seating member slidable on the blade and spring-biased to hold the flyer against the catch and hence provide a drag force to tension the yarn and prevent over-running. The catch comprises spring-loaded balls 12 housed in radial sockets in the blade and the seating member is a cap 13 biased by the spring 14. To deft the bobbin the flyer, which comprises arms 151 mounted on a bush 15, is pulled upwards, the balls 12 being forced within their sockets. The bush 15 is flared at its lower end to allow the balls 12 to return to a protruding position (as shown in Fig. 2), and retain the cap 13 on the spindle. The cap 13 may be pulled off the spindle to permit the replacement of the spring 14.
Patent GB-769545-A (GB)
Title: Improvements in or relating to a staple element cartridge for fastening machines
IPC: B25C5/08
Filed: 1953-08-28
Abstract: 769,545. Staples. SPEED PRODUCTS CO., Inc. Aug. 28, 1953 [April 20, 1953], No. 18175/54. Divided out of 769,544, [Group VII]. Class 89 (2). [Also in Group VII] Staple blanks, each comprising a straight piece of wire E, are resiliently connected together by an elastic coating 60 reinforced, if desired, by a thin elastic transparent tape TP.
Patent GB-804996-A (GB)
Title: Apparatus for conducting chemical reactions
Inventor: READ WILLIAM JAMES
IPC: C07C17/02
Filed: 1955-07-28
Abstract: <PICT:0804996/III/1> The invention comprises apparatus for conducting chemical reactions comprising a vertical column containing a heat-exchange means extending across the column and a substantial distance vertically, in the upper portion, and small-sized packing pieces in the lower portion, with inlets and outlets for a fluid heat-exchange medium, an inlet above the packed section for liquid reactant, an inlet for gaseous reactant below the packed section, an outlet for fluid reaction product below the packed zone, and an outlet for gas above the heat-exchange means, a flow-path through the column being provided which is adapted to permit a downward flow of a non-viscous liquid from and through said heat exchange means to the bottom of the packed section without the build-up of a continuous liquid phase.  The heat-exchanger may be of spiral tubular form and the packing of glass.  In Fig. 1 apparatus as above is designed for the reaction between ethylene and bromine according to Specification 804,995 (Group IV (b)).  A cylindrical glass column 1 is divided into a reaction zone 2 containing glass tubular heat-exchangers 7-12 inclusive and a packed zone 3 in two sections 4 and 5 containing glass packing.  An inlet line 13 above coil 8 provides for gravity-fed liquid bromine, and inlet line 14 at the bottom of column 1 is for gaseous ethylene.  The product, ethylene dibromide, is withdrawn through line 16 to a storage tank.  Thermometers, gauges and valves are provided.  Vent gas passes through line 15 via a scrubber to atmosphere.  Cooling water is supplied to the coils through line 31.  Operating data are given and the process may be made automatic.
Patent GB-222977-A (GB)
Title: Improvements in or relating to pathways, hard tennis courts and similar structures
IPC: E01C13/04
Filed: 1923-07-14
Abstract: 222,977. Walton, C. July 14, 1923. Materials, special, for blocks and slabs.- Blocks or slabs cut from natural volcanic rock lava are used for flooring and paving pathways, tennis courts, &c. Square or curbed rebates may be formed on the edges, and channels a on the underside to key with the bedding cement.
Patent GB-1417592-A (GB)
Title: Drive transmission apparatus
IPC: E02F9/12
Filed: 1973-03-22
Abstract: 1417592 Lubricating gearing CATERPILLAR TRACTOR CO 22 March 1973 [27 March 1972] 18267/75 Divided out of 1417591 Heading F2Q Drive transmission apparatus comprises a gear drive mechanism 17, 30 completely enclosed in an annular chamber 38, for containing lubricant, with baffle plates 48 circumferentially disposed so as to maintain a substantially uniform distribution of lubricant when the apparatus is tripped away from a normal operating position in which the central axis of the enclosure is vertical. The gear drive may be the slewing mechanism of an earth working machine and comprise ring gear 17, fixed to bearing support ring 16, driven by pinion 30. The chamber 38 is formed by upper wall 32 fixed to mounting ring 14, lower wall 34 fixed to the support ring 16, sidewall 38 integral with the lower wall, and by the ring gear 17, and the baffles 48 are located in an annular trough 41 within the chamber 38 and with circumferentially distributed ports 50.
Patent GB-891050-A (GB)
Title: Arrangement for lubricating and cooling rotating parts
Inventor: ROSSKOPF HANS
IPC: F16C33/66
Filed: 1960-05-24
Abstract: 891,050. Lubricating. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. May 24, 1960 [May 27, 1959], No. 18282/60. Classes 12 (1) and 12 (3). In a means for lubricating and cooling rotating parts oil is sprayed thereon through a nozzle 17 and air is supplied separately through orifices 14 so that the jet of oil is enveloped by the air. In an embodiment a bearing 2 supports a shaft 1 and is seated in a housing 6 having an annular chamber 11 supplied by pressurised air from a pipe 15. The air passes through the orifices 14, 14a and enters a chamber 10 to pass through the bearing 2 into a chamber 8 from which it escapes via a pipe 9. The nozzle 17 passes through into orifice 14a.
Patent GB-1043914-A (GB)
Title: Improvements in and relating to ethylene recovery systems
IPC: C07C7/00
Filed: 1963-05-09
Abstract: <PICT:1043914/C4-C5/1> A process for the recovery of ethylene from a mixture of light gases including ethylene, methane, hydrogen and traces of acetylene comprises compressing and cooling the mixture, adding an anti-icing agent to the mixture to prevent freezing, demethanizing to separate the hydrogen and methane as a gaseous fraction, vaporizing the liquid bottoms fraction, scrubbing this bottoms fraction in countercurrent flow with a C2-rich liquid to condense the anti-icing agent and hydrocarbons heavier than ethane, hydrogenating the scrubbed vapour to convert the traces of acetylene to ethylene, and fractionating the hydrogenated vapour in an ethylene-ethane splitter to give substantially pure ethylene, C2-rich liquid being withdrawn from the splitter to provide the C2-rich liquid used in scrubbing the said bottoms fraction.  The anti-icing agent, e.g. methanol may be added to the mixture during demethanization.  Any lean and / or sponge oils present in the mixture are removed during scrubbing.  A cracked product is passed through quench vessel 12, compressor 16, heat exchanger 18 and separator drum 20 in which the gases are compressed and cooled.  The gas is then fed to absorber de-ethanizer 24 to contact a lean or sponge oil to produce a C2 and lower boiling fraction containing small quantities of C3 and heavier hydrocarbons which is hydrogenated in vessel 30 and washed in caustic tower 32 to remove acetylene carbon dioxide and sulphur containing compounds. The gas is compressed at 34 cooled to 60 DEG  F. in heat exchanger 36, passed through separator drum 38, drier 40 and cooled to - 80 DEG  F. in heat exchanger 42 and then fractionated in demethanizer 44 provided with a reboiler 52 to remove methane and hydrogen.  Methanol is introduced into the demethanizer feed stream gas via lines 46 and 48. The liquid bottoms then pass to scrubber 60 provided with a vaporizer 62 which vaporizes liquid C2 and lower weight compounds, the heaver than ethane hydrocarbons condensing with the methanol and lean or sponge oil.  A C2-rich liquid reflux is introduced into the scrubber from ethylene-ethane splitter 74.  The gases pass to heat exchanger 70 and hydrogenation unit 72 which reduces the acetylene content to less than 5 p.p.m., and then to ethylene-ethane splitter 74, ethylene being taken off to condenser 80 &c. a part of the reflux liquid being returned to splitter 74 and another part is passed to scrubber 60. By heating splitter bottoms in reboiler 88, ethane is taken off via line 90.  In preferred embodiments, the reboiler for the demethanizer tower is also used as a vaporizer for the scrubber column and may be associated with the scrubber column as a major portion of the demethanizer bottoms may be introduced into the bottom of the scrubber column.
Patent GB-1471730-A (GB)
Title: Document reader
IPC: G06K7/01
Filed: 1974-04-26
Abstract: 1471730 Punched card reader INTERNATIONAL BUSINESS MACHINES CORP 26 April 1974 [30 May 1973] 18474/74 Heading G4M A document reader has a document carriage moved manually in one direction and returned at a substantially constant speed in the opposite direction with the reading operation operative during the latter movement and the carriage movable only when a document is present. A movable carriage 22 (Fig. 11A) has grooves 30 receiving balls 28 also received in grooves 32 in a portion 34, 35 of a fixed frame. The carriage contains teeth 130 equal in number to the number of rows on the document to co-operate with a reader to form clock pulses. Springs 38 are also mounted on the carriage. A pressure plate 24 received in grooves 40 in the carriage has grooves 50, 48 in which the springs 38 are received to reduce pressure between the pressure plate and the inner faces 54 of the carriage. Plate 24 contains slots 44 aligned with the columns of the card and a slot 46. The pressure plate is moved to relieve pressure and a card is inserted between the plate and face 54 of the carriage. The plate is moved to increase the pressure against face 54 and is pushed downwards into a reader (Fig. 1, not shown). The carriage is coupled by a cable 70 to a drum 64. The cable passes over a pulley 96 coupled to a latch 100. When the carriage is moved pulley 96 and latch 100 are rotated on shaft 98 and latch 100 engages in slot 46 if a card is not present to prevent movement of the carriage. Drum 64 is coupled by gears 66, 72 to drum 76 on which a spring 78 is wound. Rewinding of the spring drives the carriage and via shaft 74 drives a governor 58 via a one-way clutch 84.  The card is sensed by starwheels 104 mounted on levers 106 pivoting about shaft 108. If a hole is present the levers are moved by springs 127 to raise balls 114 against contacts 144 in a plate 120. A lever 122 carries a pawl 128 pushed to an inoperative position when the carriage is depressed but sensing teeth 130 on ejection of the carriage to form clock pulses.
Patent GB-420316-A (GB)
Title: An improved cap or stopper for bottles or like containers
IPC: B65D41/34
Filed: 1933-06-29
Abstract: 420,316. Caps for bottles. SWANNELL, F., 12, Landseer Street, Battersea Park Road, London, and VISCOSE DEVELOPMENT CO., Ltd., Woldham Road, Bromley, Kent. June 29, 1933, No. 18495. [Class 125 (iii)] A non - metallic screw - cap for a bottle, &c., is so arranged that a portion of the cap is fractured on unscrewing. The cap a is provided with a frangible skirt portion c against which a spring d is anchored which engages teeth g, g<1>, with the free end d<2> thereof. The end d<2> acts as a pawl co-operating with the ratchet on the bottle neck.
Patent GB-874067-A (GB)
Title: Improvements in polyethylene-styrene reaction products and in processes for their production
IPC: C08L51/06
Filed: 1960-05-25
Abstract: Graft copolymers are made by homogenizing a mixture of polyethylene, styrene and a peroxide, in the absence of a liquid medium, at a temperature at least as high as the Vicat softening point of the polyethylene-styrene mixture.  A suitable peroxide is tert. butyl perbenzoate.  The product of the reaction consists of a mixture of polyethylene-styrene graft copolymer, homopolymeric ethylene and styrene and styrene monomer.  The styrene monomer is removed from the mixture by solvent extraction, as may be the styrene homopolymer. The products may be used to make films which have greater transparency than those made from polyethylene. Specification 497,643 is referred to.
Patent GB-516364-A (GB)
Title: Improvements in and relating to electric heating devices
IPC: H05B3/68
Filed: 1938-06-22
Abstract: 516,364. Electric hot-plates. GENERAL ELECTRIC CO., Ltd., and CATTELL, G. S. June 22, 1938, No. 18538. [Class 39 (iii)] An electric hot plate is formed with a sheetmetal top plate 1 provided with corrugated channel or angular section sheet metal members 2 welded to the underside thereof to form straight parallel open channels. A coiled electric heating element 3, embedded in insulating material, is arranged in these channels in zigzag manner. Current is supplied through terminals 5 mounted by insulating bushes 6 in lugs. 7 welded to the flange 8 of the plate 1. In an alternative construction, a single channel section -member 2 is used, arranged spirally.
Patent GB-649305-A (GB)
Title: A process for the alkylation of aromatic compounds having a phenolic hydroxy group with the aid of olefins
IPC: C07C37/14
Filed: 1948-07-09
Abstract: Phenols are alkylated with olefins in the liquid phase in presence of a catalyst formed, in the reaction mixture or in one of the components thereof, from zinc oxide and hydrochloric acid gas.  The phenols may be phenol, cresols, xylenols, naphthols or phenanthols, and may contain more than one hydroxyl group.  The olefins may be a petroleum cracked distillate.  The hydrogen chloride is preferably passed through even after the last of the olefin has been added.  In an example, phenol is heated with C14-18 olefins in presence of zinc oxide, whilst passing a current of hydrogen chloride gas through the reaction mixture, to give a mixture of di- and mono-alkylated phenols.  Specifications 460,435, 469,548, and 473,438 are referred to.
Patent GB-832721-A (GB)
Title: Means for supporting railway rails
IPC: E01B9/64
Filed: 1957-06-13
Abstract: 832,721. Securing railway rails. CLYDE RUBBER WORKS CO. Ltd., and HANNAH, D. M. Sept. 9, 1958 [June 13, 1957], No. 18655/57. Class 104 (2). Means for supporting a rail track 3 comprises a clamp having a stem 4 rotating in a recess in a sleeper 9 and having an eyelet 5 engaging a resilient bush 6 surrounding a cylindrical pivot 7 to urge the clamp into engagement with the lower rail flange. The eyelet has a non-circular bore which is aligned with bushes also having a non-circular bore. A bar 8 with a non-circular bore rigidly mounted in the sleeper passes through the eyelet and bushes so that they do not rotate relatively to one another. The resilient bush 6 is compressed during assembly and may be bonded to adjacent surfaces. A lifting tool is applied to the heel 1 to rotate the clamp into a position where the action of the resilient bush causes the clamp to grip the rail flange. Alternatively a non- circular eyelet is mounted on a bar 17 having a non-circular bore, the bar being mounted in a rigid cylinder 20 surrounded by a pre-stressed resilient bush 19 engaging spaced rigid sleeves 18 which have a polygonal exterior. The bushes may be mounted beneath the recess for the rail, the rail being mounted on a resilient pad 10 in the recess. Alternatively the clamps have a common eyelet embracing a bush surrounding a cylinder with a non-axial bore through which passes a non-circular bar. The sleeper is made of wood or concrete.
Patent GB-1522881-A (GB)
Title: Foamable latex composition
IPC: C08J9/30
Filed: 1976-05-06
Abstract: 1522881 Vulcanizing and foaming latices GENERAL LATEX & CHEMICAL CORP 6 May 1976 18660/76 Headings C3C and C3E A latex composition comprises (a) a natural or synthetic elastomeric latex; (b) a curing system which comprises an accelerating agent, which agent is inhibited in accelerating function in the presence of the base and (c), a volatile ammoniacal base, the composition being characterized by having a total solids content of 55 to 85% by weight and being free of a gelling agent capable of gelling the composition in storage. Examples are given in which compositions are prepared comprising styrene-butadiene rubber latex, a curing system containing zinc dibenzyl, dithiocarbamate, ammonia and frothing agents comprising sodium metaphosphate, sodium alkyl sulphate and disodium N-octadecyl sulphosuccinimate. The compositions are frothed, applied to carboard or the back of a tufted rug and cured by heating. The base (c) may, instead of ammonia, be an organic compound, e.g. ethylamine, diethylamine, isobutyl amine, a quaternary ammonium hydroxide or morpholine.
Patent GB-932861-A (GB)
Title: An improved machine for clinching clips around wire
Inventor: BARLEY ROYSTON PERCIVAL
IPC: B21F15/06
Filed: 1961-05-24
Abstract: 932,861. Connecting spring assemblies; bending. NO-SAG SPRING CO. (GREAT BRITAIN) Ltd. May 24, 1962 [May 24, 1961], No. 18703/61. Class 83 (4). [Also in Group XXX] A machine for clinching clips around wire comprises the combination of a work bench, a preformed clip hopper underneath said bench with power-driven means to vibrate the same, the hopper having a helical ledge around the interior of its wall to receive clips of substantially U-form with flat legs thrown thereon from a supply contained in the hopper, said clips being caused by the vibration to travel upwardly along the ledge to a discharge point where during travel they have assumed an attitude with their flat legs pointing up and parallel with the hopper wall, said discharge point being disposed adjacent the jaws of a clinching tool fixedly mounted under the bench with foot-controlled power-operating mechanism, the said jaws projecting above the bench. U-shaped clips C in a vibrated hopper 1 are caused by said vibration to move upwardly along a helical ledge 17 therein towards a discharge track 18. The ledge 17 is about as wide as the length of legs 2 of the clip C so that those clips not lying lengthwise on the ledge fall off. The end 17b of the ledge is made narrower so that only clips C with the crutch end 3 adjacent the wall of the hopper remain on the ledge, Fig. 9. The discharge track 18 comprises a helically twisted blade which turns the clips C into a vertical plane crutch 3 downwards. A finger 21 in the hopper wipes off from the ledge 17 any clips lodged thereon in a vertical position. The clips C are fed in succession on to a grooved reciprocatory jaw 8. On depressing a pedal 15 a female jaw 7 is swung to a position over wires to be connected together and the jaw 8 is raised to bend the clip C around the wires. The jaws are operated pneumatically. Wires used in spring interior units may be thus connected together and component springs connected in frames.