baber/WOPTO huggingface dataset:
Patent GB-1444198-A (GB)
Title: Epoxidation of olefinic compounds
IPC: C07B61/00
Filed: 1974-06-13
Abstract: 1444198 Epoxidation catalyst RHONEPOULENC SA 13 June 1974 [14 June 1973] 26300/74 Heading B1E [Also in Division C2] The catalyst residue remaining after the preparation of propylene oxide from propylene and cyclohexyl hydroperoxide in the presence of n-C 4 H 9 SnCl 3  catalyst is regenerated by treating the residue with aqueous sodium hydroxide, isolating the resulting aqueous phase, washing the remaining organic phase twice with water and combining the three aqueous phases, washing the combined aqueous phases with cyclohexane, mixing the aqueous phases with aqueous hydrochloric acid, cyclohexane and heating under reflux to distill a cyclohexane-water azeotrope and returning the cyclohexane phase of this azeotrope to the distillate to produce a solution of n-C 4 H 9 SnCl 3  in cyclohexane which may be used as a catalyst for further epoxidation. An epoxidation catalyst comprising a solution of a mixture of in cyclohexane is prepared by reacting 1, 2-epoxy-octane with n-C 4 H 9 SnCl 3 .
Patent GB-320497-A (GB)
Title: Improvements relating to the preparation of milk, skimmed milk or buttermilk, free of milk-sugar for sufferers from diabetes
IPC: A23J3/08
Filed: 1928-09-13
Abstract: 320,497. Pohlmann, J., and Rassers, J. R. F. Sept. 13, 1928. Milk preparations. - A preparation free from milk sugar is made from milk, skimmed milk or buttermilk by precipitating the casein in the presence of a decoction of Carrageen by such a small quantity of acid that a reversible colloidal precipitate is formed. This. precipitate is washed with water until the washing water is neutral and contains no milk sugar, and then the precipitated albumens are brought into suspension again by the addition of a blood serum, for example, of a cow, diluted to the consistency required for milk. A mixture of salts occurring in milk, viz, sodium chloride, magnesium chloride, ferric sulphate, potassium sulphate, secondary potassium phosphate and primary calcium phosphate, is also added.
Patent GB-693847-A (GB)
Title: A process for the treatment of boiler water and other industrial liquids
Inventor: SHAW DAVID
IPC: B01B1/04
Filed: 1950-10-31
Abstract: Substances adapted to prevent frothing in liquids (see Group III) have the formula <FORM:0693847/IV (b)/1> wherein R=fatty acid radical of 10-22 carbon atoms and x=an aliphatic or aromatic radical of 2-18 carbon atoms, and are prepared by condensing formaldehyde with the amide of a fatty acid having 10-22 carbon atoms, the amide also being substituted on the nitrogen atom with an aliphatic or aromatic radical of 2-18 carbon atoms.  The amides are prepared from acids such as stearic, erucic, lauric, myristic, oleic, palmitic and behenic and amines such as ethylamine, ethylenediamine, tetramethylenediamine, hexamethylenediamine, ethanolamine, phenylenediamine, toluidine, benzidine and naphthylamine.  Examples are given.ALSO:The frothing of boiler water and other industrial liquids is prevented by incorporating therein an organic substance comprising at least two long hydrocarbon chains giving it a strongly hydrophobic character and at least one methylene bridge connecting two nitrogen atoms giving it a water absorbent character, the substance being the condensation product of formaldehyde with the amide of a higher fatty acid which has 10 to 22 carbon atoms, the amide also being substituted on the nitrogen atom with an aliphatic or aromatic radical having 2 to 18 carbon atoms.  The substance has the following formula:-  <FORM:0693847/III/1> wherein R = fatty acid radical of 10-22 carbon atoms and X = an aliphatic or aromatic radical of 2-18 carbon atoms.  The substance may be added in pulverulent form, in organic solution or in colloidal aqueous suspension, tannins or sodium carbonate also being added to the latter suspension.  The substance is prepared by converting an amine, e.g., ethylamine, ethylenediamine, tetramethylenediamine, hexa-methylenediamine, ethanolamine, phenyl-oxadiamine, toluidine, benzidine or naph-thylamine to an amide of, e.g., stearic, erucic, lauric, myristic, oleic, palmitic or behenic acids, the amide then being condensed with formaldehyde or substance liberating formaldehyde.
Patent GB-762329-A (GB)
Title: Hydrocarbon lubricating oil compositions and processes for their production
IPC: C10M101/02
Filed: 1954-09-14
Abstract: A lubricating composition comprises (a) a blend of a virgin hydrocarbon lubricating oil distillate and a cycle oil from a cracking process, the cycle oil having a boiling range within the range of 650-1020 DEG F., or (b) a raffinate obtained by subjecting the blend to extraction with a solvent having preferential selectivity for aromatic hydrocarbons.  The raffinate may be dewaxed. Apparatus is described in which crude petroleum is fractionated by distillation to yield, among other fractions, a gas oil and a botoms fraction.  The bottoms fraction is further fractionated by vacuum distillation to yield 3 lubricating oil fractions and a residuum. The lightest of the lubricating oil fractions is blended with the gas oil and the blend is catalytically cracked.  The cracking products are fractionated to yield, among other fractions, a bottoms fraction which is a cycle oil boiling in the range 650-1020 DEG F.  This cycle oil is blended with the two heavier lubricating oil fractions and the blend is subjected to extraction with a solvent (e.g. phenol or furfural) having preferential selectivity for aromatic hydrocarbons. The raffinate is dewaxed by means of a dewaxing solvent (e.g. liquid propane, methyl, ethyl ketone or mixed ketones) and the dewaxed raffinate is fractioned by vacuum distillation into 3 fractions. In an example, a blend of 2 mineral lubricating oils with a cycle oil (boiling range 700-975 DEG F.) is extracted with aqueous phenol, the raffinate is dewaxed and the dewaxed raffinate is fractionated by distillation.
Patent GB-1411909-A (GB)
Title: Hydrochemical transmission
IPC: F16H47/04
Filed: 1973-06-04
Abstract: 1411909 Variable speed gear ORSHANSKY TRANSMISSION CORP 4 June 1973 [25 Sept 1972] 26608/73 Addition to 1364962 Heading F2D In the compound hydromechanical planetary gear of the parent Specification 1,364,962 the suns, planets, carriers and ring gears of the two basic trains are all identical respectively with each other. Alternatively the two suns may be formed as a common sun. In a three train embodiment the elements of the third train may also be identical with, or different from, those of the two basic trains and an additional variabledisplacement hydrostatic unit may be provided and be mechanically clutchable to the fixed displacement unit.
Patent GB-751699-A (GB)
Title: Dental mirror
IPC: A61B1/247
Filed: 1954-09-15
Abstract: 751,699. Dental mirrors. CLAESSENS, C. P. D. Sept. 15, 1954 [Sept. 21, 1953], No. 26731/54. Class 81(2). A dental mirror is mounted on a hollow handle through which a cooling fluid is passed and a lateral opening at the end of the handle directs a jet of fluid in front of the mirror, to cool a tooth being treated. The actual mirror 13 is mounted at the end of the hollow stem 3 at approximately 45 degrees thereto, and fluid, which may be liquid or gas, is received through a supply pipe connected to a union 14, after which it flows past a control valve 4 to a nozzle, set adjacent to the mirror and so mounted as to direct a stream perpendicular to the handle into the space immediately in front of the mirror. The valve 4 is preferably in the form of a plunger bearing against a length of flexible tube and, if desired, electrical heating means may be incorporated in the lower part of the handle.
Patent GB-318623-A (GB)
Title: Improvements in or relating to a portable machine having a selfcontained motor for boring, drilling, milling, screwing up nuts and like operations
IPC: B25B21/00
Filed: 1929-09-03
Abstract: 318,623. Aktiebolaget Nordiska Armaturfabrikerna. Sept. 8, 1928, [Convention date]. Motors, gearing for.-In motor-driven tools of the kind in which the tool is rotated by a variable and reversely acting torque, the maximum torque in one direction is greater than the maximum in the other direction and the mean torque in the first direction may also be greater than that in the second. The device may be used for boring and drilling, milling or screwing up nuts &c. and the driving torque is arranged to be larger than the resisting torque, but in the reverse direction less than the resisting torque in this direction. In one form, a casing 1 having a handle 2 supports the stator 3 of a motor whose rotor 4 is attached to a shaft 5 carrying a disc 6. Slots 11 in the disc receive the pivots 12 of rollers or balls 7 which are maintained by centrifugal force in contact with a casing 8 to which the tool shaft 9 is secured. The internal surface of the casing 8 consists of two outwardly diverging cam surfaces 10<1> and two inwardly extending surfaces 10<2>, the torque transmitted to the tool thus varying during each rotation and the maximum being greater than that of the motor. In a modification the slots 11 are curved and the cam surfaces are varied and in a further modification the disc 6 is dispensed with and the rollers 7 are mounted on approximately radial arms pivoted to the shaft 5. The Specification as open to inspection under Sect. 91 (3) (a) states that the operation does not need to apply a restraining torque to the motor casing, that the tool may be used for grinding, that centrifugal force may be replaced by springs or gravity, and that the slots 11 may be curved in either direction. This subject-matter does not appear in the Specification as accepted.
Patent GB-361831-A (GB)
Title: Improvements in fine drawing dies
IPC: B21C3/02
Filed: 1931-09-25
Abstract: 361,831. Drawing-dies. TOOL METAL MANUFACTURING CO., Ltd., 11, Victoria Street, London. Sept. 25, 1931, No. 26802. Convention date, Oct. 1, 1930. [Class 83 (iv).] Drawing-dies of a hard metal, such as that sold under the registered Trade Mark " Widia," are secured in a holder of approximately the same coefficient of expansion. Such a holder may be formed of a nickel steel containing 39-45 per cent of nickel, or part of the nickel may be replaced by corrosion-resisting constituents such as chromium, tungsten, or molybdenum. The die may be soldered into the holder. In a modification, the die may be surrounded by a piece of metal foil of the required coefficient of expansion and is then soldered into a holder of chromium steel or chromium nickel steel of high resistance to corrosion but with a coefficient of expansion different from that of the die and foil.
Patent GB-1352137-A (GB)
Title: Aromatic sulphones and polymers produced therefrom
IPC: C07C317/14
Filed: 1970-06-03
Abstract: 1352137 Aromatic sulphones IMPERIAL CHEMICAL INDUSTRIES Ltd 7 May 1971 [3 June 1970 25 Nov 1970] 26837/70 and 56073/70 Heading C2C The invention comprises compounds of formula in which X is -SO 2 -; -SO 2 ArSO 2 -; -SO-; -CO-; or -CoArCo-; where Ar represents a bivalent aromatic residue derived from benzene, biphenyl or naphthalene and Z is a chlorine atom or an hydroxyl group or a salt thereof. These compounds may be prepared by treating a compound of formula with a compound of formula Y-X-Y, wherein X is as defined above and Y is a group capable of reacting with the 4<SP>1</SP>-H of the biphenyl group of the compound of Formula III, such as Cl. The intermediate compound of the Formula III is prepared by reacting biphenyl with 4-chlorobenzenesulphonyl(chloride) in the presence of anhydrous FeCl 3  as catalyst, or it may be prepared by the reaction of 4-chlorobenzenesulphonic acid with biphenyl in the presence of a phosphorous pentahalide.
Patent GB-1500038-A (GB)
Title: Fibre optic members
IPC: G02B6/42
Filed: 1975-06-25
Abstract: 1500038 Light guides EI DU PONT DE NEMOURS & CO 25 June 1975 [26 June 1974] 26985/75 Heading G2J A fibre optic member 10 comprising a plurality of optical fibres 12 is secured to a terminal 20, having a frusto-conical end portion 36, by expanding the ends of the fibres, e.g. by heating them to engage the outwardly flared surface of the portion 36 in the terminal. The expanded ends are polygonal in cross-section, and may form a lens 40, as shown. The terminal may be plastics or metal, and in one embodiment, Fig. 8 (not shown), the outward end of surface 36 is engaged in a hollow support (84) in which are mounted either a light source and a lens, or a photo-responsive element.
Patent GB-753190-A (GB)
Title: Improvements in or relating to a method and apparatus for handling pulverulent materials
Inventor: ATKINSON FREDERICK MELVILLE
IPC: B60P1/60
Filed: 1954-09-17
Abstract: 753,190. Unloading material from vehicles by fluidization; pneumatic conveyers. ATKINSON BULK TRANSPORT CO. Sept. 17, 1954, No. 27013/54. Classes 78 (1) and 78 (4). Means for. discharging pulverulent fluidized material, e.g. flour from a delivery vehicle and conveying it to a storage bin comprises a rotary-bladed wheel L mounted between the outlet from the vehicle body and the inlet of a transverse chamber.34, fluidizing means in the bottom of the chamber, and a conveying conduit 37 which is connected to a restricted aperture 35 in one end of the chamber provided with a quick-closing valve. The fluidizing means comprises a layer 40 of four-ply canvas supported by a series of transverse perforated members 41 and a conduit 43 for supplying compressed air. The fluidizers 18, 19 at the bottom of the vehicle body also consist of canvas supported by perforated cross-members 21, air being supplied to the space. 23 between each pair. of members by a conduit 24. Means for connecting a conduit 37 may be provided also at the other end of the chamber 34.
Patent GB-1063056-A (GB)
Title: Production of maleic anhydride copolymers
Inventor: HERRLE KARL
IPC: C08F263/02
Filed: 1964-07-01
Abstract: Finely divided copolymers of maleic anhydride are produced by polymerizing a mixture of maleic anhydride and a vinyl ether of a C1- 8 alcohol and/or a vinyl ester of a C1- 8 carboxylic acid in an inert organic liquid in which the monomers but not the copolymer are soluble, with a free radical polymerization initiator and in the presence of a polystyrene, a copolymer of styrene (at least 50%) and an acrylic ester, polyvinyl methyl ether or a polyvinyl ester of a saturated C1- 3 carboxylic acid.  The organic liquid may be a saturated aliphatic or cycloaliphatic, or aromatic hydrocarbon. The vinyl ether may be vinyl-(cyclohexyl, diisopropyl carbinol, 2-ethylhexyl, -iso- or n-butyl or ethyl ether and the ester may be vinyl acetate (caprylate or propionate).  The free radical initiator may be benzoyl peroxide or azodiisobutyro-nitrile. The copolymer may be treated with ammonia gas to form a hemi-amide ammonium salt.
Patent GB-1214938-A (GB)
Title: Installation channel including a separating wall
Inventor: DAHL MANFRED
IPC: F16L7/00
Filed: 1968-06-07
Abstract: 1,214,938. Ducts with multiple passageways. M. DAHL. 7 June, 1968 [10 June, 1967], No. 27173/68. Heading F2P. [Also in Division H2] An installation duct for pipes, cables &c. consists of a channel 1 having a cover 9 and an insert 5 having a vertical wall 7 which divides the duct into two chambers and which projects upwardly from a base 6 which stands in the bottom 2 of the duct. The duet walls are grooved at 14, 15 to receive the edges 12, 13 of the lid. As shown in Fig. 1 the base of the partition is secured in the duct by screws &c. in holes 18, 19. The partition may be central, as shown, or biased towards one side. In the form shown in Fig. 3, the base of the insert is notched so that it may be easily broken off on either side to place the partition where it is required. It is located by ribs 22 or by notches (Fig. 6, not shown), in the duct. The top of the wall may be located by spacers (23, Figs. 4 and 5, not shown). The duct parts may be of thermoplastic material and may be extruded.
Patent GB-810514-A (GB)
Title: Cuff for a shirt or like garment
IPC: A41B7/00
Filed: 1956-09-05
Abstract: 810,514. Cuffs. CLUETT, PEABODY & CO. Inc. Sept. 5, 1956 [Sept. 27, 1955], No. 27223/56. Class 141 The inner and outer portions of a double cuff are secured together solely by providing single buttonholes 14 through the two portions. The cuff comprises a rectangular piece of fabric which may be lined and which has its edges 7, 8, 9, 10 folded over.
Patent GB-797097-A (GB)
Title: Improvements in or relating to apparatus for distributing letters and like flat articles
Inventor: FENTON KENNETH CHARLES
IPC: B65G37/00
Filed: 1955-09-23
Abstract: 797,097. Endless-belt elevators. POSTMASTER GENERAL. Sept. 21,1956 [Sept. 23, 1955], No. 27253/55. Class 78 (1). In apparatus for conveying letters discharged one by one from a letter presentation unit 2, Fig. 1, which may be constructed as described in Specification 716,231, to a selected station 3, 4 or 5 between endless belts 16, 9 and 28, selectively operable means, e.g. a pneumatically-actuated plunger 27 or 34, is provided at each station for positively displacing the belt 16 and one of the belts 9, 28 to direct a letter into a station. The plunger 27 is connected to a pivoted arm 26 on which a roller 25 is mounted. When the plunger moves to the right, the roller 25 moves the belt 16 from the position shown in Fig. 1 to that shown in Fig. 2a. During the movement the roller 13, around which the belt 9 passes and which is mounted on a pivoted arm 23, is also moved so that a letter is directed into the space between the guides 6, 7 at the station and falls on to an endless belt 8. Belts 28 replace the belt 9 at stations 4, 5. Any letters not delivered to the stations 3, 4 or 5 normally pass into a discharge shoot 35, but if the plunger 34 immediately above the shoot is moved to the left, the roller 32 will also do so and the belt 16 will be deflected to direct the letters to the gap between it and the auxiliary belt 46. These letters pass into a stacking box 36.
Patent GB-689835-A (GB)
Title: Manufacture of para-aminosalicylates
IPC: C07D277/28
Filed: 1950-10-23
Abstract: The invention relates to salts of p-aminosalicylic acid with anti-histamine bases having the general formula <FORM:0689835/IV (b)/1> or <FORM:0689835/IV (b)/2> in which R1 and R2 each represent a methyl group, or the group <FORM:0689835/IV (b)/3> represents a pyrrolidine group, and R3 represents a pyridyl or thiazolyl group. Examples are given of the preparation of the p-aminosalicylic acid salts of the following bases: 1 - phenyl - 1 - pyridyl - (21) - 3 - dimethylaminopropane; 1 - phenyl - 1 - pyridyl - (21)-3 - N - pyrrolidino - propane; 1 - phenyl - 1-thiazolyl - (21) - 3 - N - pyrrolidino - propane, and 10 - dimethylaminoethyl - phenthiazine. The salts are made by the interaction of the acid and base or by double decomposition of an alkali or alkaline earth salt of the acid with a salt of the base with an inorganic acid.
Patent GB-444959-A (GB)
Title: Method of and apparatus for casting metals
IPC: B22D21/00
Filed: 1934-09-24
Abstract: 444,959. Moulds. BOLTON & SONS, Ltd., T., Hutchinson Street, Widnes, Lancashire, and HAYES, J., Bank View, Froghall, Staffordshire. Sept. 24, 1934, No. 27337. [Class 83 (i)] Casting processes.-A copper or other ingot is formed by pouring the metal into a covered mould 1, allowing it to overflow when close to the cover to prevent it from touching, and allowing the whole to cool with the cover in position. The iron mould 1 has overflow channels 2 and a cover 3 which is recessed or of H-section so that it is spaced about <3>/16 of an inch from the face of the molten metal when the mould is filled. In a modification, two or more ingots are cast in a single mould.
Patent GB-934746-A (GB)
Title: A keyboard assembly for a cash register or similar accounting machine
Inventor: SIMS EDWARD HENRY
IPC: G06C21/04
Filed: 1962-07-17
Abstract: 934,746. Cash registers. NATIONAL CASH REGISTER CO. July 17, 1962, No. 27357/62 Class 106 (1). Means are provided for preventing initiation of a machine operation unless the keys are correctly operated. A bail 23 rocks on studs 24, 25 and is slidable longitudinally. A motor trip slide has a cam surface 51 and is spring connected to the machine release slide 41 cammed forward by any of a bank of operation keys. Each bank of amount keys has a detent 16 with forward and rear legs 20, 21. As an amount key is depressed the detent 16 is moved so that leg 20 moves first to position 20a and then position 20b. The bail 23 has slots 23a, 23b which receive the leg 20 when detent 16 is not moved and when in position 20b respectively. In an add operation slide 41 is cammed foward and pulls with it the motor trip slide which tends to rock bail 23 by means of a lever having a stud 57 bearing on cam surface 51 and the other end of which bears on stud 27 on bail 23. If any of the amount keys are only partially depressed the legs 20 will engage neither slots 23a nor 23b and movement of the bail and thus the motor trip slide will not be possible. As soon as the amount keys are fully depressed the spring 43 pulls the trip slide forward. The motor trip slide is so shaped as to prevent operation of a correction key once the slide is forward and consequently the motor tripped. At the end of the machine cycle slide 41 is restored taking with it the trip slide and releasing the bail 23 to spring 26 for restoration. Lug 50 on the trip slide rocks a bell crank which moves a slide 73 to the right, of which the extensions 75 rock detents 16 anticlockwise releasing the amount keys to restoring springs. In a no-sale operation the no-sale slide, which engages stud 27 on bail 23, is cammed rearwardly by the control key. Full movement of the slide is prevented, however, if any amount keys are depressed since then a leg 20 will be engaged by a slot 23b rather than 23a. Latching of the no-sale key, a pre-requisite of machine release, is then prevented. In total or subtotal operations another slide is caused to engage the stud 27 and pull the bail anticlockwise. A second slide (not shown) is also cammed rearwardly and has a lug similar to lug 50 on the motor trip slide which also engages the bellcrank and pulls the slide 73 to the left. All the detents 16 are rocked anticlockwise and the legs 20 acting as zero stops are moved out of the paths of the differential actuators. If an amount key is depressed a leg 20 will be engaging a slot 23b and only limited rotation of bail 23 will be possible. This will not be sufficient to bring stud 28 opposite surface 29a so that movement to the right of the bail when the detents are rocked anticlockwise is prevented. Thus the machine release is prevented. Bail 23 may also have slots 23c &c. associated with print keys.
Patent GB-533102-A (GB)
Title: Improvement in interchangeable spikes for running shoes and the like
IPC: A43C15/16
Filed: 1939-10-07
Abstract: 533,102. Boots &c. HOFF, C. Oct. 7, 1939, Nos. 27432 and 27433. Convention dates, Oct. 22. 1938 and April 4, 1939. [Class 17 (iii)] An interchangeable spike for a running shoe is flanged at 6 and its threaded portion 4 is screwed into a square-shaped washer 3 of the same thickness as the insole 1. A disc 7 of copper &c. is preferably placed beneath the flange 6, and beneath all the discs of a number of spikes may be located a thin plate 8 of spring steel. The washer 3 may be provided with a rib 9 of wedge-shaped section to engage the sole 2, while the stem of the spike may have one or more plane surfaces 10.