baber/WOPTO huggingface dataset:
Patent GB-1058950-A (GB)
Title: Process of preparing alkylidene peroxides and hydroxyperoxides
IPC: C07C409/22
Filed: 1965-02-19
Abstract: Alkylidene peroxides and hydroperoxides are prepared by reacting a carbonyl compound and a tertiary alkyl hydroperoxide in the presence of a solid catalyst comprising a cationic exchange resin, an activated natural earth or a salt of a polyvalent mineral acid. Cationic resins with sulphonic or carboxylic functional groups, e.g. styrene-divinylbenzene, and methacrylic acid-divinylbenzene copolymers may be used, and suitable clay minerals are listed, and the salts of the acid may be potassium hydrogen sulphate, ammonium chloride, monosodium ammonium phosphate and ammonium hydrogen sulphate.  The carbonyl compounds may be saturated, unsaturated, aliphatic, optionally halogen substituted, aromatic cyclo-aliphatic, oxygen heterocyclic mono-, di- or triketones and aldehydes carrying if desired, hydroxyl or carboxyl substituents and many are listed. Examples describe the preparation of 2,2 - di - (t.-butyl - peroxy) - propane, a ,a 1 - di - (t. - butyl - peroxy) - toluene, 2,2-bis -(cumyl - peroxy) - propane, 2,2,5,5 - tetra -(t. - butyl - peroxy) - hexane, 2,2 - di - (t.-butyl - peroxy) - 4 - hydroxy - 4 - methyl pentane, 1,1,4,4 - tetra - (t. - butyl - peroxy)-cyclohexane, di - t. - butyl - peroxy - (2 - furyl)-methane, 1,1 - dit. - butyl - peroxycyclohexane, and 1-t.-butyl-peroxyethanol-1.ALSO:Ethylene-propylene copolymers are vulcanized by 2,2-bis(cumyl peroxy)propane in a composition comprising carbon black, zinc oxide and sulphur.
Patent GB-329731-A (GB)
Title: Improvements in or relating to pistons
IPC: F16J1/06
Filed: 1929-03-07
Abstract: 329,731. Taylor, R., and Taylor, H. March 7, 1929. Pistions; balancing laterally.-The diameter of a piston is varied by means of a segment C of the skirt, axially adjustable on inclined guides D, and secured by a stud 4 passing through a lug I on the segment C and screwing into a web G in the piston head; the parts G, I being spaced by shims M. Studs J secured in the segment C pass through slots in the guides D and are clamped by nuts L. The piston head is strengthened by ribs N, and ribs P extend to the gudgeon-pin bosses O.
Patent GB-778471-A (GB)
Title: Backing fabric feed means for tufting machines
IPC: D05C15/00
Filed: 1955-03-15
Abstract: 778,471. Sewing machines. BEASLEY, M. M. March 15, 1955 [Sept. 20, 1954], No. 7495/55. Class 112. In feeding base fabric in a tufting machine, tension is developed in the base fabric between positions fore- and-aft of the tufting mechanism and in the direction of feed, the feed being controlled to preclude overrun and or retrograde movement during periods of acceleration or deceleration, in order to avoid the pressure of " stop marks " in the finished fabric. The base fabric passes over spiked rollers 9 and 10 situated respectively fore-and-aft of the bank of needles, and the drive is so arranged that roller 10 rotates slightly faster than roller 9. An overhead shaft 4 is connected by mechanism to the needles, and by a V belt 14 to a change speed device 15. The latter is connected by a V belt 19 to an adjustable-diameter pulley 20 mounted on a shaft 21, and pulley 20 is connected by a belt 22 to an adjustable-diameter pulley 23 mounted on a shaft 24. Shaft 21 is coupled by helical gears 29, 30 to a shaft 31, which carries a worm 33 meshing with a worm gear 34 mounted on a shaft 35 carrying the feed roller 10. Shaft 24 is coupled by gears 38, 39 to a shaft 40 which carries a worm 42 meshing with a worm gear 43 mounted on a shaft 44 carrying the feed roller 9. The device 15 is of the kind having a central sheave movable axially in response to the tension in belts on either side thereof so as to increase and decrease simultaneously the effective diameters of the respective belt pulleys. The tension on belt 14 is varied by rocking the device 15 about a pivot 16 by means of a screw-threaded rod 17.
Patent GB-1045006-A (GB)
Title: Improvements in magnetic heads
IPC: G11B5/11
Filed: 1965-02-22
Abstract: 1,045,006. Shielding magnetic heads. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Feb. 22, 1965 [Feb. 25, 1964], No. 7545/65. Heading G5R. To reduce pick-up at the read gap 10 of a write/read head due to the field from the record gap 7, a plate 16, of magnetizable poor conductor, preferably ferrite, is arranged asymmetrically with respect to the centre distance between the gaps 7, 10 on the opposite side of a magnetic tape (not shown) from the gaps and preferably some 0À1 to 0À5 mm. away from them. The member is adjusted such that any field due to the gap 7 at the gap 10 is in a vertical direction as drawn. The member 16 may be inclined to the tapepath, Fig. 3, and may be associated with a non-magnetic conductor 17 which also reduces adjacent-track cross-talk in a multiple-track assembly (Fig. 1, not shown). A number of possible positions for the member 16 are given (Figs. 2b, 2c, 2d, not shown).
Patent GB-194150-A (GB)
Title: Improvements in and relating to soles and heels for boots, shoes and the like
IPC: C08K7/12
Filed: 1922-03-15
Abstract: 194,150. Wood-Milne, Ltd., Potter, H. B., and Hampson, C. B. March 15, 1922. Soles.-Soles and heels of boots and shoes and the like end protecting pads therefor are made of india-rubber in which there is embodied 40 to 60 per cent of asbestos fibre. The asbestos is embodied in the rubber mixture from which the finished soles and the like are made.
Patent GB-840582-A (GB)
Title: Improvements in or relating to electric discharge tubes containing tritium and to methods of introducing the tritium in such tubes
IPC: H01J17/32
Filed: 1958-03-10
Abstract: 840,582. Coating by vapour deposition. PHILIPS ELECTRICAL INDUSTRIES Ltd. March 10, 1958 [March 13, 1957], No. 7613/58. Class 82(2) [Also in Groups XXII and XL(a)] An apparatus for producing tritiumsaturated titanium powder comprises a titanium wire 17 supported by nickel supply leads in a discharge vessel 16 which is connected through a cooler 18 and a cock 19 to a vacuum pump (not shown). A number of vessels 20 closed by seals 21 associated with a puncturing ball 22 each contain a zirconium plate 23 saturated with tritium, or alternatively may be filled with gaseous tritium. A further number of vessels, closed by seals 24, contain argon. The vessel 16 is degassed, calcined if necessary, and then filled with argon at a pressure of 10 cm. of mercury by breaking one of the seals 24. The wire 17 is vaporized so that a layer of titanium is deposited on the wall of the vessel 16. One of the seals 21 is then broken and either the tritium contained in a zirconium plate 23 driven off by heating or. the gaseous tritium is admitted to the vessel 16 where is is absorbed by the titanium layer. The absorption may be promoted by heating. Alternatively the tritium may be admitted to the discharge vessel 16 at the same time as the argon. The vessel 16 is then cut off at 25 from the rest of the system and the layer of vaporized metal exposed to air, the powder which is not entirely saturated with tritium thus becoming inactive. Subsequently the vessel is washed with butylacetate in which nitrocellulose is later dissolved. The suspension thus obained is placed in an electric discharge tube (see Group XL(a)) and is sintered to a support during heat treatment of the tube. Electrons emitted by the tritium serve to reduce the ignition delay of the tube in operation.
Patent GB-1253769-A (GB)
Title: Apparatus for feeding and/or discharging a press
Inventor: FAHRNI FRED
IPC: B27N3/22
Filed: 1970-02-17
Abstract: 1,253,769. Feeding blanks to presses. F. FAHRNI. 17 Feb., 1970 [21 Feb., 1969] No. 7631/70. Headings B5A and B5N. A chipboard, fibreboard, plywood, or the like blank 4 is supported upon a metal plate 3 and transferred from conveyer 5 to a position between a pair of heated plates 1, 2 of a multidaylight press by means of a linear alternating current induction motor. The motor includes a pair of primary parts 7 formed as strips along either edge of the lowermost of the pair of plates and a secondary part formed by the metal plate. Currents are induced in the metal plate and the resultant forces move the plate with the blank into and out of the press. Each primary part includes a series of in-line poles each formed by a set of transformer laminations 8 having coils 10. The laminations of each pole are formed with an upper yoke 9 which acts as a guide for the side of the metal plate. The upper surface of each primary part is preferably covered with a layer 11 of a low-friction non-metallic material and the lower surface of each yoke 9 is coated with bronze or a plastics material. Also the metal plate may be coated on its underside with a friction reducing material. Friction may be further reduced by providing the lowermost of each pair of plates with channels 14 having apertures 15 through which compressed air is blown. The metal plate may be additionally guided by spacer strips 13 interchangeably mounted in support bars 12 located adjacent the primary parts 7. The invention may be applied to single stage presses having only two plates.
Patent GB-697225-A (GB)
Title: Improvements relating to electrolytic solutions
IPC: C25D3/06
Filed: 1949-03-21
Abstract: 697,225. Electrodeposition of chromium. ICXI, J. J. G. March 21, 1949 [March 20, 1948], No. 7681/49. Class 41. A method of electrodeposition of chromium comprises the use of an electrolytic solution containing at least one complex salt of the general formula [Cr(X)n](Z) 3  in which X is the radical of a monovalent or divalent organic acid, n being 6 or 3, and Z is a radical derived from an amine base. The term " amine base " is used to designate compounds corresponding to the general formula in which R, R 1  and R 2  may be identical or different and designate an atom of hydrogen, a hydroxyl radical or any monovalent radical. The solution may also comprise compounds which improve the efficiency, such as methyl or ethyl alcohols, compounds which increase or decrease the electrical conductivity, or compounds which increase wetting of the cathode, as for example compounds of the ethanolamine type. The complex salt may be prepared in several ways including mixing a solution of an organic salt of chromium with a solution of an organic salt of the amine base, successively dissolving, in a solution of one or several organic acids, an amine base and hydroxide or basic carbonate of chromium, reducing an oxygenated compound of chromium by an excess of a reducing organic acid and neutralizing by the amine base, and double decomposition between a salt of chromium and a salt of an organic acid, e.g. chromium sulphate and barium formate, in the presence of an organic salt of the amine base. A salt of a metal, for example, iron or cobalt, may be added to the solution for obtaining chromium alloys. Chromium coatings may consist partly of chromium carbide when the electrolyte solution contains a formic complex of chromium and the anode is graphite. The method of the invention is stated to be very suitable for electro-deposition without immersion in the electrolyte of the article treated.
Patent GB-242514-A (GB)
Title: Improvements in or relating to automatic air brake control apparatus
IPC: B60T7/18
Filed: 1925-03-21
Abstract: 242,514. Rushen, P. C., (National Safety Appliance Co.). March 21, 1925. Valves controlled by pilot or relay valves.-The application of the brakes by a device on a railway track, which actuates a venting valve, may be prevented by the driver by means of a forestalling valve which must be operated before the track apparatus is effective, and remains effective only for a predetermined time interval. The invention is described as applied to the train-control apparatus described in Specifications 170,814 and 174,559. The forestalling valve 27 is fitted in the conduit 20 between the track-actuated valve and the brake valve and comprises a normally open valve which is closed by a rocking lever 33 controlled by a cam 42 on the piston rod of a differential piston in a cylinder 48, 39. The space between the pistons is subjected to train pipe pressure and the space below the large piston is supplied with pressure from the pipe 22 which is vented by the track actuated valve or is exhausted to atmosphere through a manually-controlled valve 59, arranged to be operated by a spring-pressed radial plunger 74 in a shaft rotatable from a handle outside the casing of the apparatus. The plunger 74 is pressed inwardly by a fixed cam 75 and on clearing this cam, presses against a latch 78 carried by a pivoted lever 80, and thereby through the bar 85, moves the valve 59 to connect the pipe 22 to the conduit 61 which opens below the piston in cylinder 48. If the track-actuated device has not been operated, the pressure in pipe 22 is high and causes the piston to raise the cam 42, but, if the. track device has previously operated and vented the pipe 22, the opening of valve 59 is ineffective. In the former case, the cam 42 rocks the lever 33 and closes communication to the brake valve, thereby rendering the subsequent track impulse ineffective. The cam 42 rises under control of a needle valve which controls escape of air from the upper end of the cylinder 48 and after a given time lifts the lever 80, thereby removing the latch 78 clear above the plunger 74 and allowing the valve 59 to move to exhaust the cylinder 48 through an axial passage in the valve stem and holes in a sliding cap 91. The latch 78 is held up until the handle is rotated to carry with it the plunger 74. The piston rod and cam 42 descend rapidly as air enters through a one-way ball valve from the train pipe to the space between the two pistons and the forestalling valve is re-opened until a further operation of the driver's handle.
Patent GB-116089-A (GB)
Title: Improvements in Hand Bags.
Inventor: SMITH WILLIAM HENRY
IPC: A45C3/00
Filed: 1918-05-09
Abstract: 116,089. Smith, W. H. May 24, 1917, [Convention date]. Hand-bags.-In order to preserve the correct shape of a hand-bag having a stiff lower portion and a flexible upper portion, wire springs 18 are inserted in outwardly projecting seams arranged at the corners of the upper part of the bag. Each seam has two rows 19, 20 of stitches, the spring 18 being arranged between them.
Patent GB-373317-A (GB)
Title: An improved means of central heating for houses and other buildings
IPC: F24D3/10
Filed: 1931-03-14
Abstract: 373,317. Heating buildings ; domestic water-heating installations. McLEAN, D., The Dawn, North Shields, Northumberland. March 14, 1931, No. 7880. [Classes 64 (i) and 64 (ii).] An installation for the supply of hot water and for central heating of a building comprises a main boiler G and an auxiliary boiler I heated by gas or electricity, a pipe B for a central heating circuit being connected to the expansion pipe C from the storage tank A at the same point D as a connection is made with the auxiliary boiler. The various members of the circuits are connected as shown in the Figure. The central heating device may be a pipe supported by chains round the walls of a building.
Patent GB-1137188-A (GB)
Title: Laminated glass articles
IPC: B32B17/10
Filed: 1966-02-23
Abstract: 1,137,188. Glass laminates. P.P.G. INDUSTRIES Inc. 23 Feb., 1966 [24 Feb., 1965], No. 7882/66. Heading B5N. [Also in Division C3] A laminated glass article contains a glass member bonded by means of a polyurethane layer to another member, the polyurethane being made by the reaction of an organic polyisocyanate and a polyfunctional organosilicon compound having at least two active hydrogen-containing groups, the number of active hydrogen atoms per average molecule of said organosilicon compound being greater than two. The polyurethane is produced in situ. The glass member may be bonded to a further glass layer or to a layer of plastics material. Many polyisocyanates and organosilicon compounds are specified. .
Patent GB-1492866-A (GB)
Title: Methods of producing a dry pulverulent foodstuff or animal food and products produced according to the methods
IPC: A23L19/15
Filed: 1975-02-26
Abstract: 1492866 Pulverulent foodstuffs MAZETTI AB 26 Feb 1975 [27 Feb 1974] 7940/75 Heading A2B A dry pulverulent foodstuff or animal feed which is admixed with liquid prior to consumption is made by coating a solid component with an atomized liquid component which is an emulsion of a fat, a proteinaceous liquid and an emulsifier and drying the coated product at 50-200‹C, the emulsified fat between deposited onto the solid, which is in turn surrounded by a dried layer of the proteinaceous continuous phase of the emulsion. The proteinaceous liquid is preferably skimmed milk, sodium caseinate solution, isolated soy protein soln or whey and the solid component is mashed potato flakes, a gruel powder, soup powder, sauce powder, dessert powder, nutrient powder, cream substitute powder or calf fodder. An additional carbohydrate or proteinaceous material may be added to the liquid component e.g. soya, meal, tomato puree, yeast and dried cocoa powder. The process may be effected in a spray drier, introducing the components separately, or in a fluidised bed by spraying the liquid component on to a bed of the solid component, or by spraying the liquid onto the surface of a heated drum upon which the solid component is drying, as in the production of mashed potato flakes.
Patent GB-581346-A (GB)
Title: New pyrimidine compounds
Filed: 1943-09-29
Abstract: 2 - Arylguanidino - 4 - hydroxypyrimidines wherein either or both of the 5- or 6-positions may be unsubstituted or substituted by a hydrocarbon radicle and wherein the aryl radicle may carry one or more non-acidic substituents such as hydrocarbon radicles (which themselves may bear substituents and which may be attached to the aryl radicle directly or through an oxygen, nitrogen or sulphur atom or a sulphonyl or carbonyl group), halogen atoms or cyano, nitro, acylamino or esterified carboxyl groups, are manufactured by the interaction of an arylbiguanide, whereof the aryl radicle may carry one or more non-acidic substituents, with a formylacetic ester, optionally substituted by a hydrocarbon radicle on either or both of the a - and b -carbon atoms.  The reaction may be effected by bringing the reagents together in the presence of a solvent, e.g. ethanol, and, if desired, heating to accelerate the reaction, but not to such high temperatures as to give rise to side-reactions.  The arylbiguanide may, if desired, be used in the form of a salt, e.g. the hydrochloride, in which case it is preferable to work in the presence of an acid-binding agent, e.g. sodium ethoxide or caustic soda.  In an example, p-bromophenylbiguanide hydrochloride is reacted with ethyl acetoacetate in ethyl alcohol in the presence of aqueous caustic soda solution, to produce 2-p-bromophenylguanidino - 4 - hydroxy - 6 - methyl - pyrimidine.  Further examples are given. Specifications 569,099 and 581,334 are referred to.  A sample has been furnished under Sect. 2 (5) of 2 - p - dimethylaminophenylguanidino - 4 - hydroxy-6-methylpyrimidine, prepared by the action of ethyl acetoacetate in alcohol in the presence of sodium hydroxide solution on p-dimethylaminophenylbiguanide (obtained by interaction of N : N - dimethyl - p - phenylene - diamine sulphate with dicyandiamide and basification of the reaction mixture).  Arylbiguanides are obtainable by heating together in an aqueous medium equimolecular proportions of dicyandiamide and a salt, e.g. the hydrochloride, of the appropriate arylamine, e.g. p-bromoaniline.  Formylacetic esters employed in the process of the invention may be prepared by the Claisen reaction between the appropriate esters, or by direct alkylation of the appropriate acylacetic ester.
Patent GB-457696-A (GB)
Title: Device and process for the representation of objects of any desired kind
IPC: B44C3/02
Filed: 1936-03-17
Abstract: 457,696. Pictures; picture books. TRANSART AKTIEBOLAG, 20, Võstra Hamngatan, Gothenburg, Sweden. March 17, 1936, Nos. 7976 and 7977. Convention dates, Aug. 27, 1935 and Oct. 24, 1935. [Classes 11 and 16] In the representation of objects, particularly those lying behind one another in space or time, by the use of superposed transparent sheets, each of the sheets carries an opaque picture of part of the total representation, so that an underneath picture is masked to a greater or less extent by the picture above it. The representation on each sheet is executed by a printing or other process in opaque colours, or preferably over an opaque background of a neutral tint or of a tint used in the picture. A representation of the rear side of the object can then be printed on the under side of the sheet, so that, when the sheets are mounted together, for instance in book or leporello form, and the observer turns over the successive sheets f, g, h, Figs. 7, 8, carrying the representations a, b, c of portions of a landscape he can take a backward glance at the part already traversed by looking at the back of sheets already turned. The opaque background coating 7, Fig. 11, may be applied on one or both sides of the sheet 1 under the colour imprints 4, 5, 6, or one colour imprint may be made on one side, to be viewed through the sheet, and then the coating 7 and second colour imprint may be overprinted.
Patent GB-361768-A (GB)
Title: Improvements in preparations suitable for coating or sticking
IPC: C09D131/04
Filed: 1931-03-16
Abstract: Coating compositions comprise two or more polyvinyl ester modifications, for example polyvinyl acetates and butyrates, selected as differing in their degree of polymerization, dissolved in a solvent or mixture of solvents with or without a diluent. The polyvinyl ester modifications may differ or not in their empirical composition.  Substances such as resins, pigments such as titanium white, dyestuffs, cellulose derivatives, softening agents such as tricresyl phosphate, or oils may be added.  The solvents or diluents comprise methyl ethyl, and butyl acetates, alcohol, acetone, toluene, and glycollic acid butyl ester.ALSO:Adhesives and coating compositions comprise two or more polyvinyl ester modifications, for example polyvinyl acetates and butyrates, selected as differing in their degree of polymerization, dissolved in a solvent or mixture of solvents with or without a diluent.  The polyvinyl ester modifications may differ or not in their empirical composition. Substances such as resins, pigments such as titanium white, dyestuffs, cellulose derivatives, softening agents such as tricresyl phosphate, or oils may be added.  The solvents or diluents comprise methyl, ethyl, and butyl acetates, alcohol, acetone, toluene and glycollic acid butyl ester.
Patent GB-682612-A (GB)
Title: Improvements in or relating to cross-bar selector arrangements
Inventor: MYERS CLIFFORD
IPC: H01H67/26
Filed: 1950-03-30
Abstract: 682,612. Electric selectors. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Feb. 21, 1951 [March 30, 1950], No. 8048/50. Class 40 (iv). In a cross-bar switch, each horizontal bar 1 carries a number of projections 4 which normally rest inside channel members 5 secured to contact sets 6, 7 and are withdrawn by the energization of the corresponding horizontal magnet 3. A selected vertical bar 12 is then magnetized by means of an associated coil 13, attracting a number of pivoted armatures 11 carrying resilient fingers 10. At the level of the selected horizontal bar 1, a finger 10 enters the gap between a projection 4 and a channel member 5, and release of the horizontal magnet 3 causes the operation of the selected contact set, as shown at the left of Fig. 2. To terminate the connection, a momentary energization of the associated horizontal magnet 3 allows the finger 10 to be released. The switch may be built in shelves 14, Fig. 3a, each of which comprises a complete level. The shelves fit into slides 15, Fig. 3, and the electrical connections are made by suitable plug-and-socket strips having recesses for the magnetic vertical bars 12.