baber/WOPTO huggingface dataset:
Patent GB-1527501-A (GB)
Title: Composite articles
IPC: B29C70/34
Filed: 1975-09-25
Abstract: 1527501 Rubber tube; power transmission belt E I DU PONT DE NEMOURS & CO 25 Sept 1975 [26 Sept 1974] 39390/75 Headings F2P and F2Q [Also in Division B5] Reinforced elastomeric articles, e.g. flexible hose or power transmission belts, are made by bringing into intimate contact two thermoplastic elastomers having melting points differing by at least 20 C., the elastomer (A) of higher melting point being mono- or biaxially oriented and in the form of a plurality of strands, tapes or filaments, and heating the resulting assembly to a temperature between the melting points of the two elastomers, so causing the elastomer (B) of lower melting point to fuse and bond the filaments &c., of elastomer (A) to each other without destroying the orientation of elastomer (A). Elastomers (A) and (B) are preferably both copolyetherester elastomers, each consisting essentially of a multiplicity of long-chain ester units of general formula joined head-to-tail by short-chain ester units of general formula -ODO.CO.R.CO-, in which: G is the divalent radical remaining after the removal of terminal hydroxyl groups from a poly(alkylene oxide)glycol HO-G-OH having a molecular weight of 400-6000, and a C/O atomic ratio of 2À0-4À3 : 1; R is a divalent radical remaining after removal of carboxyl groups from a dicarboxylic acid having a molecular weight <300; and D is a divalent radical remaining after removal from a diol HO-D-OH, having a molecular weight <250; the short-chain ester units constituting 10-95 wt. per cent, and the long-chain units 90-5 weight per cent. of the copolyetherester. The necessary intimate contact between the two elastomers may be obtained simply by laying one on top of the other, as in the embodiment of Fig. 4, where a hose is formed by heating a spirally-wound laminate of elastomer A, elastomer B, and elastomer A again. Alternatively, the tapes, strands or filaments of elastomer A may be coated with elastomer B (e.g. by dipping or co-extrusion) so that on heating contiguous surfaces will bond together.
Patent GB-1009583-A (GB)
Title: Improvements in or relating to tumbler dryers
IPC: D06F34/08
Filed: 1963-10-07
Abstract: 1,009,583. Drying-apparatus. WHIRLPOOL CORPORATION. Oct. 7, 1963 [Oct. 10, 1962], No. 39450/63. Heading F4G. In a dryer comprising a single speed electric drive motor, a blower for directing a stream of air through a zone in which materials are to be dried, and a heater for applying thermal energy at selected input rates to the air stream, a transmission connecting the motor and blower drives the blower at selected speeds and a control means synchronously regulates the heater to alter the thermal energy input to the air stream. As shown, a motor 14 drives a blower 30, via a pulley belt 18, and a drum 20 into which air heated in a conduit 26 by electrical resistance elements 33, 34 (Fig. 6), passes through an outlet 27 (Fig. 1), moisture-laden air being withdrawn by the blower 30 through a vent 32. The control means comprises a two-position knob 133 (Fig. 6), in one position of which, for a low heat output, contacts 113, 113a and 114, 114a are open and the belt 18 fits in a groove 53 in a pulley 50 coaxial with the blower impellers. To obtain a high heat output, knob 133 is related to close the contacts and simultaneously actuate a Bowden wire 78 connected to a disc 66 (Fig. 5), thus rotating the disc anti-clockwise so that a projection 67 moves the belt 18 into a pulley groove 52 and a higher blower speed is obtained. When the knob is returned to its other position a tapered roller 69 journalled on the disc 66 shifts the belt 18 back into the groove 53. A timer motor 150 (Fig. 6), high and low temperature thermostats 97, 96, and a safety thermostat 98 are provided, and a switch 100 automatically stops the machine when the dryer door is opened. In a modification (not shown), the resistance elements 33, 34 are replaced by a gas burner.
Patent GB-973654-A (GB)
Title: Improvements in building construction
IPC: E04B2/10
Filed: 1961-11-08
Abstract: 973,654. Building blocks and walls; ceiling joists. A. HARDIE. Feb. 8, 1963 [Nov. 8, 1961], No. 39950/61. Headings E1B and E1V. A building block of reinforced concrete is formed with an inner dished face bounded by four edge faces each provided with a groove 7, 8, the grooves 8 in two opposite faces being at a different distance from the outer face than the other two grooves 7. The blocks are built into a wall with tie-rods fitted into the grooves and spanning several blocks. The block may be provided in the parts bounding the recess in the dished face with ducts as shown in Fig. 2, and the bounding parts may each incorporate a layer of heat insulating material. In a wall the dished faces may be covered with boards and the cavities thus formed filled with insulating material. The outer face of each block may be marked to simulate joints in stone work. The Specification also describes joists, Fig. 4, for use in a building erected from the described blocks, the joists being reinforced and being provided with air ducts 23. A ceiling 25 and boarding 22 are shown.
Patent GB-1039275-A (GB)
Title: Rolling mills
Inventor: STUBBINS DEREK
IPC: B21B31/10
Filed: 1963-10-11
Abstract: 1,039,275. Rolling. DAVY & UNITED ENGINEERING CO. Ltd. Oct. 5, 1964 [Oct. 11, 1963], No. 40321/63. Heading B3M. In a four-high rolling mill the upper work roll chocks 17 have downwardly extending arms 21 which slidably engage the mill housing and embrace the chocks 18 of the lower work roll 20. The upper backing roll chocks 13 similarly have arms 23 which embrace the chocks 17, balancing cylinders 24 being mounted in these arms. Rails 28 are supported by vertical links 29 attached to the balancing beams 30 of the chocks 13, so that by raising these beams prior to roll changing the rails are lifted into contact with wheels 27 in the chocks 21. The work roll chocks are thus removable as a unit along the rails. The chocks 17 and 18 may alternatively be held together for removal by inwardly directed bolts in the arms 21 engaging in vertical slots in the chocks 18, or by vertical bolts extending from the chocks 18 to engage in T- shaped recesses in the chocks 17. A sledge arrangement is provided below the lower backing roll chocks so that all four rolls may be removed, if desired.
Patent GB-944108-A (GB)
Title: Improvements in finned tubes and heat exchangers formed of such tubes
Inventor: WORLEY NORMAN GEORGE
IPC: F28F1/12
Filed: 1960-11-24
Abstract: 944,108. Tubular heat exchangers. BABCOCK & WILCOX CO. Nov. 22, 1961 [Nov. 24, 1960], No. 40429/60. Heading F4S. Longitudinally spaced, substantially flat, transversely extending fin surfaces on a heat exchange tube have discrete, shallow grooves for creating turbulence in the boundary layer on the fin surfaces of fluid flowing transversely to the tube. The fins may be rectangular plates as described in Specification 835,445 or 905,106, provided with turbulence inducing radial grooves 6, Fig. 2, of arcuate or shallow V-form. Various arrangements of grooves are described (Figs. 5-8, not shown). Alternatively, the fins may be of continuous helical form, Figs. 9 and 10, having equispaced radial grooves 14 and chamfered outer edges. A heat exchanger is described comprising a number of such tubes in staggered rows. Specification 899,526 also is referred to.
Patent GB-848385-A (GB)
Title: Process for producing alpha olefins
Filed: 1958-12-19
Abstract: In cracking a hydrocarbon wax in the vapour phase at 950-1175 DEG F. and not more than 100 psig for 5-30 seconds to produce a C10-C20 olefin product, the wax is chosen with an arbitrary melting point (3 DEG F. higher than the ASTM melting point) Y between 110 and 160 DEG F. and a refractive index nD at 80 DEG C. such that 4400 X - Y = 6144.5 \sB 7.5 where X is the refractive index, whereby the C10-C20 fraction of the product comprises at least 95 mol per cent of a -olefins and not more than 2% internal olefins.  The cracking is effected by melting the wax by heating to not more than 800 DEG F. then passing the molten feed p  into a cracking zone e.g. tube coils at a feed rate of 1-3 vol./vol./hr. wherein it is vaporized and cracked.  A hot inert gaseous diluent such as steam or nitrogen may be used.  Material boiling above C20 may be recycled.
Patent GB-1172564-A (GB)
Title: Improvements in Ion Exchange Processes
Inventor: EMMETT JAMES RATCLIFFE
IPC: B01D15/04
Filed: 1966-02-02
Abstract: 1,172,564. Ion-exchange. WEIR WATER TREATMENT Ltd. 1 May, 1967 [2 Feb., 1966], No. 4545/66. Heading B1J. In regenerating an ion-exchange bed consisting of a layer of weakly-basic anion-exchanger and a layer of strongly-basic anionexchanger the regenerant is passed successively through the layers in a countercurrent direction to that of the treatment flow. The bed may be combined with a cation-exchange bed or may be the result of separating mixed beds.
Patent GB-1356330-A (GB)
Title: Apparatus and methods of casting
IPC: B22D39/00
Filed: 1971-09-03
Abstract: 1356330 Casting processes GRAVICAST PATENTVERWERTUNGS GmbH 3 Sept 1971 [4 Sept 1970] 41254/71 Heading B3F [Also in Division B5] In a method of casting in which melt 15 in a supply chamber 2 flows through a second chamber 5 to a mould 12 under the influence of its static pressure, the flow of melt into the second chamber 5 is interrupted when the chamber contains sufficient melt to fill the mould and a pressure higher than said static pressure is exerted on the melt in the second chamber and the mould when the latter has been filled. Control of the flow of melt into the second chamber 5 is effected by means of a stopper 9; this is held open until the chamber 5 and nozzle 11 are filled with melt and is then lowered to close the opening 8. After a pause the stopper 9 is raised again to permit the melt to flow into the mould at a controlled rate and in a turbulentfree manner. When the mould is full the opening 8 is again closed and an increased pressure applied to the melt by means of the piston 14, and held until the melt in the ingate of the mould has solidified.
Patent GB-1409665-A (GB)
Title: Method of separating metals from industrial waste water
IPC: C02F1/463
Filed: 1972-09-07
Abstract: 1409665 Purifying waste waters MITSUI MINING & SMELTING CO Ltd 7 Sept 1972 [9 Sept 1971] 41495/72 Heading C1C [Also in Division C7] Industrial waste waters containing metal ions (e.g. Cd, Al, Pb, Cu, Ni, Fe, Cr, Mn, Zn, Hg) are purified by adding to the waste water 1-50 g: organic solvent per m.<SP>3</SP> waste water, and a non- ionic surface active agent and electrolysing the waste to produce a flock which floats. The solvent and surface active agent may be added separately or in admixture. The solvent may comprise one or more of toluene, xylene, solvent naphtha and petroleum spirit. The surface active agent may comprise polyoxyethylene alkyl ether, polyoxyethylene phenol ether, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene acylester, sorbitan fatty acid ester, oxyethylene-oxypropylene copolymer and fatty acid monoglyceride. The electrolysis may be carried out using anodes of Al or Fe and cathodes of Fe, Cu or Ni.
Patent GB-1122996-A (GB)
Title: The curing of epoxy resins
IPC: C08G59/50
Filed: 1965-10-01
Abstract: Epoxy resins are cured by mixing them with polythiourea derivatives formed by reacting an epoxide (which may be an epoxy resin) with an excess of a condensation product of a polyamine with carbon disulphide, a thiourea, a dithiourea, an ester of thiocarbonic acid, a diisocyanate or a dithiocarbamate.  In examples, (1) thiourea and nonamethylene diamine are reacted to form a condensation product which is further reacted with phenyl-glycidyl ether to give a product which is used to harden an epoxy resin derived from the reaction of epichlorohydrin with 4,41-dihydroxy-diphenylpropane; (2) a thiourea and nonamethylene diamine condensation product is reacted with varying amounts of an epoxy resin derived from the reaction of epichlorohydrin with 4,41-dihydroxy-diphenylpropane to give a product which is used to harden a further quantity of the epoxy resin placed between two steel plates; (3) hexamethylene diamine and ammonium rhodanate are reacted to form a condensation product which is further reacted with an epoxy resin derived from the reaction of epichlorohydrin with 4,41-dihydroxy-diphenylpropane to give a product which is used to harden a mixture of an epoxy resin (prepared by the reaction of a primary copolymer of phenol resin with alkaline epichlorohydrin), toluole and titanium oxide powder which is coated on to a concrete base.ALSO:Condensation products are prepared by reacting polyamines with carbon disulphide, thioureas, dithioureas, esters of thiocarbonic acid, di-isothiocyanates or dithiocarbamates, and may be further modified by reaction with epoxides.  Reaction of dimethylene triamine with thiourea gives a condensation product, of the formula H2NCSNHC2H4NHC2H4NH2. Reaction of nonamethylene diamine with thiourea gives a condensation product of the formula <FORM:1122996/C2/1> which is further reacted with phenyl-glycidyl ether.  Equimolar proportions of hexamethylene diamine and ammonium rhodanate are reacted together to give a condensation product.ALSO:A concrete surface is coated with a mixture of an epoxy resin (prepared by the reaction of a primary copolymer of phenol resin with alkaline epichlorohydrin), toluole and titanium oxide powder to which has been added a hardening agent prepared by reacting an epoxy resin (obtained from epichlorohydrin and 4, 4\sv-dihydroxy-diphenylpropane) with an excess of a condensation product of hexamethylene diamine and ammonium rhodanate.
Patent GB-1162766-A (GB)
Title: Improvements in or relating to Circuit Arrangements for d.c. Supplied Telephone Transmission Lines
IPC: H04M19/00
Filed: 1967-09-18
Abstract: 1,162,766. Automatic exchange systems; line equipment. SIEMENS A.G. 18 Sept., 1967 [19 Sept., 1966], No. 42375/67. Headings H4K and H4R. [Also in Division H1] In a subscriber's line circuit which includes a line transformer, the latter is provided with additional windings 2UW which are wound in opposition to the main windings 1UW. A twowinding miniature relay 1A, 2A (see Division H1) which responds to loop currents is connected between the additional windings and battery U. A heavy duty relay AH may be provided as a follower for 1A, 2A. It is stated that with such an arrangement; the relay 1A, 2A forms a sensitive impulse receiver which is unaffected by, line faults such as short circuits to earth, or line lengths, or, speech currents; premagnetization of the transformer core (due to high levels of D.C.) is prevented while the transformer itself may be of the miniature type; and unwanted oscillations produced (due to the various LC circuits in the line) when the line is interrupted during dialling are reduced or completely suppressed whereby it is unnecessary to include rectifiers in series with the relay.
Patent GB-1351957-A (GB)
Title: Hydroxyaryl thioethers
IPC: C07C381/12
Filed: 1971-09-13
Abstract: 1351957 Nitro-hydroxyaryl-thioethers and -sulphonium bisulphates SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 13 Sept 1971 [14 Sept 1970] 42483/71 Heading C2C The invention comprises (a) compounds of the formula wherein R and R<SP>1</SP> are alkyl, haloalkyl, aryl, alkaryl or aralkyl, R<SP>11</SP> is -OH, halogen, -NH 2 , -NHCOCH 3 , -CN, -COOH, -CHO, or (C 1  to C 4 ) alkyl or alkoxy, n is 1 or 2 and m is 0, 1 or 2, with the proviso that the -OH group is o or p to the position at which the S atom is attached to the ring and at least one NO 2  group is o or p to the position at which the -OH group is attached to the ring, which may be obtained by reacting a mixture of an organic sulphide of the formula R-S-R<SP>1</SP> and sulphuric acid with Cl 2  to form a chlorosulphonium bisulphate of the formula reacting the resulting mixture with a hydroxyaryl compound, and nitrating the resulting hydroxyaryl sulphonium bisulphate; or by reacting dimethyl sulphoxide with a hydroxyaryl compound in H 2 SO 4 , and nitrating the resulting hydroxyaryl sulphonium bisulphate; and (b) the preparation of a nitrohydroxyaryl thioether by a process which comprises reacting a compound of Formula I with an aqueous solution containing halide ions. Examples are given for the production of 4-hydroxy-3,5-dinitrophenyl dimethyl sulphonium bisulphate and 4-hydroxy- 3,5-dinitrophenyl methyl sulphide.
Patent GB-1111578-A (GB)
Title: Improvements in or relating to film projectors
IPC: G03B31/04
Filed: 1966-09-23
Abstract: 1,111,578. Feeding sound films. FUJI SHASHIN FILM KABUSHIKI KAISHA. 23 Sept., 1966 [24 Sept., 1965]. No. 42554/66. Heading G5R. In a film projector, a shaft 7 carries cams 18, 17, 16 which serve respectively to energize the film driving motor, move rollers 12, 13 to press the film against a stabilizer 4 and move a magnetic head 15 into engagement with a soundtrack on the film, in that order when the knob 6 is manually rotated to the normal projection position, and in the reverse order when the knob 6 is reversed. Further cams 19, 20 may be provided to reverse the motor drive and to switch on the projection lamp respectively so that the film may be run in the reverse direction. The camming arrangement is such that the film is disengaged from the stabilizer 4 immediately the film drive is stopped so as to prevent damage to the film as a result of the inertia of the stabilizer 4 and associated flywheel. As shown, the rollers 12, 13 are carried by levers 8, 9 pivoted about fixed shafts 10, 11 and urged together by a spring 22, while the head 15 is mounted on a spring plate 14 biased by a spring 23 and pivoted about shaft 10.
Patent GB-1129341-A (GB)
Title: Improvements in or relating to goods lifts on vehicles
Inventor: PERKS PETER
IPC: B60P1/46
Filed: 1964-10-19
Abstract: 1,129,341. Vehicle load lifting platform. MATTHES Ltd. 18 Oct., 1965 [19 Oct., 1964], No. 42577/64. Heading B8E. A semi-trailer has a load lifting plarform 17 in a side opening 19 just rearwards of the raised floor 12. The platform is raised and lowered in vertical guides 24 by an hydraulic ram and As housed .partly within the vehicle and partly projecting therefrom. The projecting portion may be hinged at 34 so that it can be folded up to be flush with the vehicle side -closing -the space below a shutter 20. Rubber webs are provided, like roller blinds, to close the gaps around the periphery of the platform which occur whenever it is above or below the lower floor level of the vehicle.
Patent GB-944977-A (GB)
Title: Improvements in or relating to an apparatus for machining by electro-erosion
IPC: H01B7/00
Filed: 1962-11-13
Abstract: 944,977. Electro erosion. ATELIERS DES CHARMILLES S.A. Nov. 13, 1962 [Nov. 14, 1961], No. 42787/62. Heading B3V. [Also in Division H1] An electro erosion apparatus has its electrode and workpiece connected to a supply source by a conductive line consisting of at least six parallel conductors 8-15 insulated from each other and arranged into two groups 9, 11, 13, 15 and 8, 10, 12, 14, supplying respectively the electrode and workpiece, the conductors of one group being distributed amongst the conductors of the other group. This arrangement is stated to reduce the selfinductance of the supply lines. In other embodiments the conductors are spaced alternately in two or more rows, Fig. 3 (not shown), in a rectangular casing, or in radial rows in a circular casing, Fig. 4 (not shown). In a further embodiment, Fig. 5, conducting strips a, b, are deposited on one or both surfaces of an insulated backing 17.
Patent GB-870787-A (GB)
Title: Improvements in or relating to the preparation of oximes
Filed: 1959-12-21
Abstract: Aldoximes or ketoximes derived from a ketone in which at least one of the carbon atoms alpha to the carbonyl group is unsubstituted are prepared by heating the parent aldehyde or ketone with an oxime of lower molecular weight than the said aldoxime or ketoxime in the presence of an acidic catalyst, the carbonyl compound from which the lower molecular weight oxime is derived having a lower boiling point than the said aldehyde or ketone reactant and preferably being distilled off.  Oximes such as acetoxime, methyl ethyl ketoxime, methyl propyl ketoxime, methyl butyl ketoxime, ethyl butyl ketoxime, methyl aryl ketoximes, formaldoxime, acetaldoxime, butyraldoxime and hexanaldoxime are heated with carbonyl compounds such as acetone, diethyl ketone, dipropyl ketone, methyl ethyl ketone, methyl propyl ketone, methyl aryl ketones, ethyl butyl ketone, cyclopropanone, cyclohexanone, acetophenone, butyraldehyde and hexanol in the presence of acidic catalysts such as sulphuric, hydrochloric, phosphoric, formic, benzenesulphonic, toluenesulphonic and naphthalenesulphonic acids; sodium bisulphate, primary ammonium phosphate, calcium chloride, zinc chloride, aluminium chloride, ammonium chloride or bromide, hydroxylammonium chloride and borontrifluoride-ether complex to give products such as methyl ethyl ketoxime, dipropyl ketoxime, cyclohexanone oxime, acetoneveratrone oxime, hexanaldoxime, butyraldoxime, acetophenone oxime, 2-aceto-para-cymeneoxime, para-chloroacetophenone oxime, 3-menthoneoxime, pinacoloneoxime, 2, 4-pentanediketoxime, 2,5-hexane diketoxime, meta-nitroacetophenoneoxime, ortho: para-dimethylacetophenoneoxime, 1,4-cyclohexane diketoxime, cyclopentanone oxime, anisaldoxime, 4-acetoxy-3-methoxy-benzaldoxime, 2,4-dihydroxybenzaldoxime, para-dimethyl-amino-benzaldoxime, para-nitrobenzaldoxime, cumaldoxime and hexadecaldoxime.
Patent GB-1045280-A (GB)
Title: Improvements in or relating to tents
IPC: B60P3/36
Filed: 1962-11-17
Abstract: 1,045,280. Convertible vehicles. W. S. BELCHER. Nov. 18, 1963 [Nov. 17, 19621. No. 43551/62. Heading B7B. A camping trailer has a base body 1 for housing equipment and which in the towing position is covered by a board 8 hinged at 8a and movable into the vertical position shown. The board 8 has side walls 13, 14 so that the canvas covering 16 and the support frames 45 may be collapsed within them. The wall 15 which carries the rear lights &c. and which bridges the lower ends of the walls 13 when in the towing position is pivoted automatically into the position shown when the board 8 is moved.
Patent GB-1505761-A (GB)
Title: Production of n,n-bis-(2-hydroxyalkyl)-aminomethane phosphonic acid dialkyl esters
IPC: C07F9/40
Filed: 1975-10-27
Abstract: 1505761 N,N-Bis - (2 - hydroxyalkyl) - aminomethane phosphonate esters BAYER AG 27 Oct 1975 [15 Feb 1975] 44064/75 Heading C2P [Also in Division C3] A process for preparing N,N-bis-(2-hydroxyalkyl)-aminomethane phosphonic acid dialkyl esters having the formula (where R is optionally substituted C 2-10  alkyl and R<SP>1</SP> is C 1-6  alkyl) comprises reacting an oxazolidine of formula with the appropriate dialkyl phosphite, including phosphorspiranes, in the presence of an acid ion exchanger, preferably a polystyrene resin containing sulphonic acid groups. The reaction is preferably carried out at 30-120 C. using 0À1 to 10 g. of ion exchanger per mol of the phosphite. The products are used as fireretardant additives for polyurethane foams.
Patent GB-1090426-A (GB)
Title: Gas burners
Inventor: TOTH BELA
IPC: F23D14/06
Filed: 1965-10-19
Abstract: 1,090,426. Gas burners. PARKINSON COWAN Ltd. Oct. 13, 1966 [Oct. 19; 1965]; No.44131/65. Heading F4T.  A multiport gas burner, adjustable to burn either town gas or slower burning hydrocarbons, comprises a hollow burner pot 10 with an upstanding peripheral wall 11 on which rests a cap 13 to form burner ports 15 by closing the upper ends of slots in; wall 11, a ring 20 carried in an annular seat 21 in the underside of cap 13 having radial openings 22 which form control ports to adjust the flow cross-section area of the ports 15 as the ring is rotated.