baber/WOPTO huggingface dataset:
Patent GB-1163422-A (GB)
Title: Amalgam Hydrodimerisation of Unsaturated Compounds
Inventor: LITTLEHAILES JOHN DAVID
IPC: B01J41/04
Filed: 1965-11-01
Abstract: 1,163,422. Reductive dimerization of unsaturated esters and nitriles. IMPERIAL CHEMICAL INDUSTRIES Ltd. 11 Oct., 1966 [1 Nov., 1965], No. 46131/65. Heading C2C. α,#-Olefinically unsaturated esters or nitriles are reductively dimerized by means of an alkali- or alkaline-earth metal amalgam reduction system, wherein the ester or nitrile is contained in a polar aprotic organic solvent system that incorporates less than 50% by wt. of a proton source (which co-operates with the amalgam to provide said reduction system) and a quantity of halide ions, furnished by an anion-exchange resin bearing quaternized amine groups and wherein the apparent pH of the organic medium is controlled at a value not less than 7 by supplying hydrogen chloride gas. The preferred halide ions are chloride ions and the resin is suitably a polystyrene resin bearing methyl quaternized amine groups. The preferred proton source is water and the polar solvent (which may be acetonitrile, dimethyl formamide or dimethyl sulphoxide) preferably forms more than 50% by wt. of the reaction medium. In specific examples, acrylonitrile is dimerized to adiponitrile; some propionitrile is also produced. Methyl or ethyl adipate may also be obtained by the dimerization of methyl or lethy acrylate.
Patent GB-461636-A (GB)
Abstract: 461,636. Washing gases. I. G. FARBENINDUSTRIE AKT.-GES. Aug. 20, 1935, No. 23367. Convention date, Aug. 22, 1934. [Class 55 (ii)] Gases are freed from dust or purified physically or chemically by passage through a container A charged with filling bodies C such as Raschig rings or spherical bodies and having its lower part D perforated and immersed in a wetting liquid ; the container is oscillated with a frequency of some hundreds or thousands a minute and an amplitude of some millimetres whereby the bodies C are caused to circulate alternately through the current of gas and wetting liquid. The pear-shaped container C with perforated faces for the passage of gas is mounted on leaf springs G and oscillated by an unbalanced mass H so as to cause a circular or elliptical vibration of the filling which wanders in helical paths into and out of liquid in a vessel E. The gas is delivered by tubes connected by corrugated pipes, leather cuffs or other flexible connections to the container. If the gas is under increased or decreased pressure, the vessel E is sealed from the atmosphere.
Patent GB-1397212-A (GB)
Title: Slide switch
IPC: H01H15/06
Filed: 1973-10-05
Abstract: 1397212 Mechanical switches PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 5 Oct 1973 [10 Oct 1972] 46628/73 Heading H1N A slide switch comprises a strip-like contact slide 7 displaceable in its longitudinal direction in a cavity in a housing which is bounded by guide faces, the slide 7 having one end connected to an operating member 11 and one free end which projects outside the cavity at the rear of the housing, the said free end being provided with at least one resilient hook-like member 25 which projects transversely to the longitudinal direction of slide 7, one side of said member 25 which faces the housing being adapted to cooperate, in order to lock the slide in the housing, with an abutment face 33 which is situated at the rear of the housing and encloses an acute angle with the nearest guide face. As shown, a spring 13 provides retraction but a known locking mechanism (not described) may prevent the return movement. Resilient contact members (17, Fig. 2, not shown) on two sides of the slide 7 co-operate with fixed contacts (19) formed with terminal tags 23, 21 and substantially flush with guide surfaces inside the housing. The tags 21 allow the switch to be mounted by soldering on to a printed-circuit board. The slide may be readily removed by depression of member 25 against its own resilience, but if it is desired to avoid any possible damage due to the pressure thus exerted on the supporting tags 21 the arrangement of Figs. 4a and 4b (not shown) may be used. In this embodiment the end of slide 7 is again bifurcated to provide resilience but each arm carries a latch member 25 and these extend laterally in opposite directions to co-operate with respective acute surfaces (33) on each side wall 1.
Patent GB-1308069-A (GB)
Title: Rack construction
IPC: A47B57/48
Filed: 1970-10-01
Abstract: 1308069 Racks D FRAZIER 1 Oct 1970 [27 March 1970] 46685/70 Heading A4B A shelf-beam is connected to an upright by a member having a front wall 10, an integral side wall 19, an integral tongue 21, and an integral cut-out portion 23 deflected from the front wall generally in the direction of the side wall. The tongue may have slot 26, and latch member 27 having two side walls, one having a portion bent inwardly to form a lug, the other being cut away, may be engaged into the slot in the position shown in phantom in Fig.12, and rotated into the locking position shown in full lines. Alternatively, as shown in Fig. 14, J-shaped bolt 33 may co-act with a flange of the upright to clamp the shelf to the upright. The upright may be U-shaped or I-shaped, and have slots in the web portions to accommodate tongues.21. The connector preferably has two tongues symmetrically vertically disposed, the shelf or shelf beam being attached to the connector so the inversion of the shelf and connector gives a change in vertical position of the shelf.
Patent GB-1089533-A (GB)
Title: Process for production of substances containing a cn bond
Inventor: KRONACHER HERMANN
IPC: C01C3/02
Filed: 1964-11-18
Abstract: Substances containing a CN bond e.g. hydrocyanic acid and calcium cyanamide are prepared at high temperatures from carboniferous gases and ammonia, at least the ammonia being preheated by the aid of circulating solid, heat carriers which are either ceramic heat carriers impregnated with a copper salt or metallic carriers of copper or copper alloys.  The carboniferous gases may also be preheated say with circulating ceramic heat carriers.  The ammonia may be heated to say 200 DEG  to 400 DEG  C. and the carboniferous gas heated to a temperature such that when mixed the gases are at above the reaction temperature.  The solid heat carriers may be heated by gases from the reaction zone.  In Fig. 1, in the production of calcium cyanamide, fine grain lime from bunker 1 is burnt in furnace 2 by burner 3.  The furnace is heated with gas introduced at 4.  Air is supplied to burner 3 via a blower and air-preheater 6. The burnt lime is reacted in reactor 11 with 95% carbon monoxide fed in at 12 at 950 DEG  C. and pure ammonia fed in at 12 at 600 DEG  C. The carbon monoxide is preheated by corondum pebbles in heater 15. Pebbles discharged from heater 15 and cooled to 200 DEG  C. are passed to stone heater 18 heated by burning gas from 4 with preheated air from preheater 6 in burner 19.  Ammonia is preheated in heater 21 with solid heat carrier balls which are heated in heater 24 by the gas emerging at 800 DEG  C. from the reactor 11.  In Fig. 2 (not shown) hydrocyanic acid is produced by reacting carbon monoxide, heated with corundum pebbles to 750 DEG  C., and ammonia, heated by circulating solid heat carrier balls to 200 DEG  C. in the presence of a cerium vanadin catalyst. Nitriles may also be synthesized according to this method.
Patent GB-1159410-A (GB)
Title: Platinum Metal-coated Titanium Base Electrodes
IPC: C25B11/10
Filed: 1966-10-20
Abstract: 1,159,410. Jointing by rolling. P.P.G. INDUSTRIES Inc. 20 Oct., 1966 [21 Oct., 1965], No. 46974/66. Heading B3M. [Also in Division C7] A platinum metal coating is formed on a titanium base by rolling of platinum metal powder into the surface of titanium sheet, or by roll bonding a platinum surface to the sheet. The assembly is subsequently heated in an inert atmosphere or vacuum.
Patent GB-1278706-A (GB)
Title: Grinding machine
IPC: B24B47/20
Filed: 1969-09-24
Abstract: 1278706 Grinding HEALD MACHINE CO 24 Sept 1969 [27 Sept 1968] 46974/69 Heading B3D  A grinding machine comprises an elongate base 11, a wheel-head table 12 movable longitudinally of the base by an hydraulic piston- and-cylinder device 77 and a work-head table 13 movable transversely of the base and carrying a work-head 14. The work-head table 13 can be controlled-force fed or controlled-rate fed. The table 13, which is mounted in ways 32, 33 by means of hydrostatic bearings, is connected to a rod 68 rigidly connected to traverse and damping pistons 67, 69 reciprocable respectively in cylinders 64, 71. A finger 58 depending from the table 13 projects into a recess of a block 35 which is movable relative to the base 11 by means of an electronic pulse actuated stepping motor 57 and a nut-and-screw arrangement 52, 53. The block carries a manually adjustable stop 48 and a fixed stop 51; these stops, in use, contact electrical sensing elements 61, 63 which energize lamps on a control panel (not shown). A diamond dressing tool 82 is mounted on the work-head table. The wheel-head table carries a grinding wheel 19 driven by a motor (17) (Fig. 1, not shown). An oscillator 78 produces axial oscillation of the wheel 19 in a workpiece during grinding. The machine may be used for grinding the bores of miniature bearing races. For controlled force feed, the throttle 75 is open and fluid at a constant pressure is introduced via port 66 into cylinder 64. The piston- and-cylinder arrangement 69, 71 acts as a damper. For a first controlled-rate feed, the sensing element 61 is maintained in contact with the stop 48 by introduction of fluid into the cylinder 64 and the block 35 is moved by operation of the motor 57. For a second controlled-rate feed the opening of the throttle 75 is reduced and fluid is introduced via port 66 into the cylinder 64. Simultaneously the block 35 is moved so as not to contact the finger 58.
Patent GB-1165698-A (GB)
Title: Improvements in or relating to Prostheses
Inventor: HENRY GUINNESS DE LASZLO M A P
IPC: A61F2/06
Filed: 1965-11-05
Abstract: 1,165,698. Surgical prostheses. H. G. DE LASZLO. 10 Oct., 1966 [5 Nov., 1965], No. 47055/65. Heading A5R. [Also in Divisions Cl and F2] A prosthesis, such as a heart valve, tube, bone, or patch, and for implanting into a human being or other animal body, is made at least substantially from elemental carbon or graphite and is in the form of a non- metallic, electrically non-insulating artifiicial member or piece of tissue for the said body. As shown a heart valve comprises a valve seat 6 machined from solid carbon or graphite, a suture ring and gasket 11 of carbonised felt or polypropylene fabric treated with .graphite, and a flap member 8 with legs 9, 10 of carbon or polypropylene material treated with graphite. An alternative heart valve(Figures 1, 2, not shown) comprises a carbon or graphite case structure (1, 3) within which is seated a silicone rubber ball. The valve seat may be formed with apertures (5) .to assist suturing and the carbon or carbonised surfaces may be treated with heparin and exemplified binding agents. A prosthetic tube '(Figure 5, not shown) may comprise concentric woven seamless tubes (15, 16, 17) adhered together at their ends and carbonised by a baking process and may be bifurcated. The concentric tubes may comprise a mesh-with gaps into which body tissue may grow. An alternative prosthetic tube (Figure 7, not shown) comprises an outer knitted tube of polypropylene treated with colloidal graphite and an inner tube of carbonised or graphitised fabric. A prosthetic tube (Figure 8, not shown) may also comprise a rigid tube of carbon or .graphite material having annular grooves '(24) at its ends. A patch (Figure 6, not shown) for "hole in the heart" operations comprises one or more layers of woven and carbonised or graphitised material adhered together at the edges of the patch and reference is also made to the use of porous fibrous carbon or graphite is artificial bone (Figure 9, not shown) for ribs, plates for protecting the 'brain, and ball joints. A layer of denser lubricating graphite may be deposited on the bone and the bone surface may be rendered liquid-tight.
Patent GB-1272820-A (GB)
Title: Production of ethylene glycol esters and compounds derived thereform
Inventor: KOLLAR JOHN
IPC: B01J27/08
Filed: 1969-09-24
Abstract: 1,272,820. Ethylene glycol esters. HALCON INTERNATIONAL Inc. 24 Sept., 1969 [26 Sept., 1968; 24 March, 1969], No. 47068/69. Heading C2C. Ethylene glycol esters of carboxylic acids are prepared by contacting ethylene with a carboxylic acid and oxygen at an elevated temperature in the presence of (a) one or more halogens selected from bromine, chlorine, and bromine or chlorine containing compounds and (b) one or more variable valence metal cations selected from Te, Ce, Sb, Mn, V, Ga, As, Co, Cu, Se, Cr and Ag. The halogen may be as such or as the acid, or as alkali metal or alkaline earth metal salts. The diacetate may be cracked by pyrolysis to yield vinyl acetate or hydrolysed to form monoacetate and/or ethylene glycol. Many acids which may be used are listed and the variable metal cation may be introduced by the addition of finely divided metal, metal carbonate, oxide, hydroxide, bromide, chloride, alkoxide, phenoxide or carboxylate. An inert solvent may be added or the carboxylic acid reactant may be used. Examples describe the reaction of ethylene with acetic, caproic, palmitic, succinic, chloropropionic, cyanoacetic, methoxyacetic, 3-methylthiopropionic, benzoic, p-toluic, 2-naphthoic, m-chlorobenzoic, o-nitrobenzoic, salicylic, p-hydroxybenzoic, m-aminobenzoic, phenylacetic, 2-phenylbutyric, 1-naphthaleneacetic, hexahydrobenzoic, picolinic, nicotinic, 3-indoleacetic, furoic, 2-thiophenacarboxylic and quinolinic acids with varying combinations of metal and halogen. Vinyl acetate, ethylene glycol and monoacetate are also prepared from the ethylene glycol diacetate.
Patent GB-990210-A (GB)
Title: Improvements in or relating to flexible conduits
IPC: H01R35/02
Filed: 1962-12-14
Abstract: 990,210. Flexible conduits; supporting conduits. CANNON ELECTRIC (GREAT BRITAIN) Ltd., D. J. BLIGHT, and J. M. SHAFE. March 16, 1964 [Dec. 14, 1962], No. 47249/62. Heading F2P. The combination with a hollow flexible conduit 11 of a holding means comprising a pair of engagement members 18, 19 which are spaced apart from each other lengthwise of the conduit and which are interconnected by a fixed-length, flexible, non- resilient coupling, the arrangement being such that, when the conduit is unflexed, the portion of the length of the conduit adjacent at least one of the engagement members can move axially relative to that engagement member and that, when the conduit is flexed, both of the engagement members engage the conduit and the coupling is flexed to hold the conduit in its flexed position. As shown, the holding means comprises metal rings 18, 19 slidable on the conduit 11 and connected by an integral metal strip 21; one of the rings may be in the form of a releasable clip. In a modification the device may be disposed within the conduit and comprises a metal strip 21 riveted to rings of a plastic, or, the strip may be replaced by wire.
Patent GB-1061660-A (GB)
Title: Treatment of polycarbonate articles
IPC: D06P3/34
Filed: 1965-11-08
Abstract: 1,061,660. Coated films, fabrics. EASTMAN KODAK CO. Nov. 8, 1965 [Nov. 9, 1964], No. 47339/65. Heading B2E. [Also in Divisions B5, B6, D1 and G2] A polycarbonate film or fabric shows improved adhesion for organic coating materials after treatment with a compound containing a primary or secondary amine group so as to form urethane groups, thereby reducing the tendency toward developing static electricity. Coating materials include polyvinyl alcohol, acrylic and vinyl resins, starch, and gelatin, e.g. as photographic emulsion, natural and synthetic rubber.
Patent GB-1043020-A (GB)
Title: Improvements in or relating to liquid injection devices, for jet propulsion or rocket type power units
IPC: F02K9/52
Filed: 1964-11-20
Abstract: 1,043,020. Generating combustion products under pressure; jet propulsion plant. FRANCE, MINISTER OF ARMED FORCES. Nov. 20, 1964 [Jan. 29, 1964], No. 47394/64. Headings F1J and F1L. For injecting two propellants-a liquid fuel and a liquid combustion supporting agentinto the combustion chamber of a jet propulsion or rocket power plant, the combustion chamber wall is provided with a number of orifices which open into the chamber and which are grouped in pairs, both orifices of any pair delivering the same propellant, the orifices of any pair being disposed such that the two jets of propellant issuing therefrom meet at a point where atomization of the propellant takes place. In at least one direction, the pairs of orifices supplying the fuel alternate with those supplying the combustion supporting agent. As shown, a combustion chamber includes a cylindrical wall in which are provided three circumferential rows of pairs of orifices, the uppermost row comprising pairs 7, 8 for delivering one of the propellants and whose axes meet at points A, and pairs 12, 13 for delivering the other propellant and whose axes meet at points B. The pairs 12, 13 alternate with the pairs 7, 8. Similar pairs 7a 8a and 12a, 13a, and 7b, 8b and 12b, 13b are provided in the middle and lower rows respectively. One propellant is supplied to the pairs 7, 8 etc. through pipe 5 and a number of angularlyspaced, axially-extending ducts 6. The other propellant is supplied to the pairs 12, 13 &c. through pipe 21, annular chamber 19 and ducts 15-18. Alternatively the pairs 12, 13 &c. of each axial row may open into a common cavity in the outer surface of the cylindrical wall, each cavity communicating with the annular chamber 19. The circumferential rows of points A and B are axially aligned to give alternate axial rows A, A, A and B, B, B. In another embodiment, Fig. 3 (not shown), three circumferential rows of points A and B are axially aligned to give alternate axial rows A, B, A and B, A, B, the pairs 7, 8 &c. and the pairs 12, 13 &c. being fed with their respective propellants by two series of helical ducts, the ducts of one series alternating with the ducts of the other. A further modification, Fig. 1 (not shown), includes only one circumferential row of alternate pairs 7, 8 and 12, 13 fed with their respective propellants by two series of axially extending ducts. In a final modification, all the pairs of orifices of each row are used for injecting the same propellant.
Patent GB-1452580-A (GB)
Title: Method of producing cold rolled silicon-alloyed magnetic steel sheets
IPC: C21D8/12
Filed: 1974-11-04
Abstract: 1452580 Working silicon steel sheet VEREINIGTE OSTERREICHISCHE EISENUND STAHLWERKE-ALPINE MONTAN AG 4 Nov 1974 [5 Nov 1973] 47529/74 Headings B3V and B3A [Also in Division C7] In the production of silicon steel sheet an unkilled mild steel containing 0À03-0À06% by wt. C is vacuum decarburized to <0À02% C and Al is added for deoxidation, followed by Si and adjustment of the Mn content to 0À25-0À8%. After casting the slabs are heated in a continuous slab-heating furnace to a temperature (in C.) below that defined by and then hot rolled to finish above 840 C., preferably above 860 C. Following cold rolling the steel is annealed for decarburization and recrystallization in a continuous furnace for not more than 4 minutes to provide a carbon content of <0À003%. In a particular embodiment the steel as cast contained by wt. and was pre-rolled at 1220 C. and then heated in a continuous furnace at 1210 C. before hot rolling in five passes finishing at 1050 C. It was then further rolled to 2 mm. in a semi-continuous six-stand train, finishing at 885 C. and coiled at 740 C. After cold rolling to 0À5 mm. in three passes it was continuously annealed at 910 C. for 2À8 minutes.
Patent GB-1513996-A (GB)
Title: Power-steering pump
IPC: F04C14/26
Filed: 1976-11-15
Abstract: 1513996 Rotary positive-displacement fluidmachines KAYABAKOGYO KK 15 Nov 1976 47578/76 Heading F1F [Also in Division B7] In a power steering pump assembly comprising a sliding-vane pump 18 disposed within a housing 11 and driven by the engine of a motor vehicle, an oil reservoir 19 formed by a casing 20 surrounding the housing 11, and a flow control valve 28 disposed in the housing 11 parallel with the pump axis, the flow control valve 28 can be readily detached from the assembly without dismantling the pump so that a partition member 42 which determines the flow characteristics of the valve can conveniently be changed. The flow control valve 28 has a spool 37 which is displaced against spring loading 51 to open a by-pass port 34 as the pressure of oil delivered by the pump to an inlet port 32 rises, and carries a control rod 48 with an enlarged portion 49 which progressively obstructs an orifice groove 44 in the partition member 42 as the spool is displaced so that the amount of oil flowing from the  inlet port 32 to an outlet port 41 is reduced. The partition member 42 is detachably mounted in a nipple 40 screwed into the housing 11 so it may be simply removed and replaced by one having an orifice groove of a different configuration. The pump has a drive-shaft 15 which is rotatably mounted in the housing 11 by bearings 12, 13 and carries a driving pulley 17. A rotor 24 on the shaft 15 has vanes 23 which co-operate with a cam ring 22 located between side plates 25, 26 fixed to the housing 11 by pins 21.
Patent GB-1287834-A (GB)
IPC: C07C51/377
Filed: 1970-10-07
Abstract: 1287834 Haloacrylic compounds BORGWARNER CORP 7 Oct 1970 [7 Oct 1969] 47742/70 Heading C2C α - Halo - acrylic compounds of formula CH 2 =C(X)-Y, in which X is chlorine or bromine and Y is a group -CN, -CONH 2  or -COOR, R being hydrogen or C 1-8  alkyl, are prepared by dehydrohalogenation of a compound of formula XCH 2 CH(X)-Y, in which each X is chlorine or bromine, with ammonia.
Patent GB-1122017-A (GB)
Title: Process for the hydrodealkylation of an alkyl aromatic hydrocarbon
Inventor: MONTGOMERY CHARLES WOODWARD
IPC: B01J19/00
Filed: 1965-11-10
Abstract: In the thermal hydrodealkylation of alkyl aromatic hydrocarbns in a metal reactor, the reactor is pretreated with hydrogen sulphide to form a metal sulphide coating, the hydrocarbon is then passed through with hydrogen at 621-982 DEG  C. and at least 7 kg./cm.2g. and at intervals the feed is stopped and replaced by a flow of hydrogen sulphide or other sulphur compound in the hydrocarbon feed to maintain the sulphide layer.  Other sulphur compounds which may be used are alkyl mercaptans, carbonyl sulphide, carbon disulphide or sulphur dioxide or trioxide.
Patent GB-1045880-A (GB)
Title: Improvements in shopfitting units
Inventor: EUSTACE KENNETH
IPC: A47F5/10
Filed: 1962-12-19
Abstract: 1,045,880 Shelves. EUSTACE & PARTNERS Ltd. Dec. 2, 1963 [Dec. 19, 1962], No. 47891/62. Heading A4B. A shop-fitting unit comprises inter-connected uprights 1 having base members 3 which are either formed integrally with the uprights or consist of two spaced plates 4, 5, with a plinth sheet 6 secured by catch plates 7 to their front edges and a base shelf 9 connected to the base members by inverted U-shaped channel members 10, 11. The uprights 1 may have C- shaped channels 2, Fig. 7, (not shown) which are adapted to receive turnbuckles 18 of shelf supporting brackets 15. Back panels 14 may be arranged adjacent the forward edges of the uprights 1 and retained in position by flanges 20 on the brackets 15. The uprights 1 may have base members 3 and channels 2 extending towards the back and front of the unit, and drawers may be slidably mounted between the base members in place of a plinth sheet 6.