baber/WOPTO huggingface dataset:
Patent GB-1312571-A (GB)
Title: Benzoxazole derivatives processes for their manufacture and their use
IPC: C07D263/57
Filed: 1971-06-25
Abstract: 1312571 Benzoxazole derivatives CIBAGEIGY AG 25 June 1971 [25 June 1970] 29948/71 Heading C2C [Also in Division D1] Novel benzoxazole derivatives having the general formula wherein each of R 1  and R 2  is hydrogen, (C 1 -C 5 ) alkyl or chlorine; R 3  is hydrogen or a (C 1 -C 12 ) alkyl, cyclohexyl, halogen, phenyl, (C 1 -C 4 ) alkylsulphonyl, phenylalkyl, (C 1 -C 4 ) alkoxy, carboxyl, carboxylic ester, sulphonic or sulphonic acid amide radical, with R 1 , R 2  and R 3  occupying the 5, 6 or 7 positions; and Z 1  is hydrogen, halogen, alkoxy, phenyl or (C 1 -C 8 ) alkyl, are prepared by either (a) condensing one mole of an acid chloride of the formula with at least two moles of a nitrile of the formula in the presence of a Friedel-Crafts catalyst at a temperature of from 70‹ to 160‹ C and, after cooling and dilution, passing in ammonia so as to cyclize the triazine ring, or (b) condensing, in approximately equimolar amounts, an acid derivative of the formula wherein X is halogen, hydroxyl or an alkoxy group, at a temperature of from 120‹ to 350‹ C., optionally in the presence of a condensation agent which eliminates water, with an aminophenol of the formula The novel compounds may be used as optical brighteners for polymeric materials.
Patent GB-140743-A (GB)
Title: Improvements in or relating to pneumatic hubs or resilient wheels
IPC: B60B9/18
Filed: 1919-12-01
Abstract: 140,743. Loutzkoy, B. von. March 22, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Spring wheels with continuous outer rigid ring and pneumatic hubs and cushions.-A pneumatic hub comprises cylinders m in which pistons care operated by sliding rollers a in guides d in the pistons. The rollers a are mounted on brackets b of the outer rim c. In the form shown in Fig. 3, cylinders m slide on pistons h on the axle, the rollers a being mounted on brackets i on the cylinders. Guides n are formed in the lateral walls of the drum c. In another form, the rollers a are mounted on a spider on the axle, and operate in guides in outwardly moving pistons, in cylinders on the rims. In the form shown in Fig. 6, pistons are forced outwardly for the purpose of drawing in air by springs o.
Patent GB-1019453-A (GB)
Title: Process for the preparation of fluorinated ethers
IPC: C07C43/12
Filed: 1962-08-03
Abstract: An ester of the formula <FORM:1019453/C2/1> is converted to an ether of the formula <FORM:1019453/C2/2> (wherein X and X1 represent hydrogen atoms or steroid hydrocarbon radicals and R and R1 represent aliphatic hydrocarbon radicals) by reacting said ester with an excess of an alcohol of the formula R1OH in the presence of an excess of alkali and isolating the ether thus formed.
Patent GB-855784-A (GB)
Title: Improvements in or relating to optical whitening agents
Inventor: ADAMS DENNIS ARTHUR WILLIAM
IPC: C07D487/04
Filed: 1956-10-02
Abstract: The invention comprises compounds of the formula: <FORM:0855784/IV(b)/1> in which X is hydrogen or a group which is neither chromophoric nor auxochromic (e.g. alkyl, aryl, aralkyl, alkoxy or halogen), n is an integer of from 1 to 5 and R1 is hydrogen or a substituted or unsubstituted hydrocarbon radical (e.g. C1-6 alkyl, hydroxyalkyl, polyethanoxy, aryl, aralkyl, alkaryl, chlorophenyl or sulphophenyl) and salts thereof, particularly alkali metal salts.  The compounds are obtained by diazotising a compound of the formula:  <FORM:0855784/IV(b)/2> coupling the resulting diazo compound of the formula:  <FORM:0855784/IV(b)/3> with a compound of the formula:  <FORM:0855784/IV(b)/4> to give a dyestuff of the formula:  <FORM:0855784/IV(b)/5> which is then oxidised with an alkali metal hypochlorite, cuprammonium sulphate, copper sulphate-pyridine soluble complex, thionylchloride or sulphuryl chloride.  The compounds may be used alone or with other whitening agents for imparting whiteness to cotton, linen, paper and photographic paper, and are added to liquid or solid soaps or synthetic detergents.ALSO:Cotton, linen, paper and photographic paper are brightened by treatment with compounds of the formula: <FORM:0855784/IV (c)/1> in which X is hydrogen or a substituent which is neither chromophoric nor auxochromic (e.g. an alkyl, aryl, aralkyl or alkoxy group or halogen), n is an integer of from 1 to 5 and R1 is hydrogen or a substituted or unsubstituted hydrocarbon radical (e.g. C1-6 alkyl, hydroxyalkyl, polyethanoxy, aryl, aralkyl, alkaryl, chlorophenyl or sulphophenyl) and salts thereof particularly alkali metal salts.  The whitening agents of the above formula may also be used for the above treatment in conjunction with other whitening agents.  The compounds are obtained by diazotising a compound of the formula:  <FORM:0855784/IV (c)/2> coupling the resulting diazo compound of the formula:  <FORM:0855784/IV (c)/3> with a compound of the formula:  <FORM:0855784/IV (c)/4> to give a dyestuff of the formula:  <FORM:0855784/IV (c)/5> which is then oxidized with an alkali metal hypochlorite, cuprammonium sulphate, copper sulphate-pyridine soluble complex, thionylchloride or sulphuryl chloride.ALSO:Liquid or solid soaps and synthetic detergents are brightened by the addition of compounds of the formula: <FORM:0855784/III/1> in which X is hydrogen or a group which is neither chromophoric nor auxochromic (e.g. alkyl, aryl, aralkyl, alkoxy or halogen), n is an integer of from 1 to 5 and R1 is hydrogen or a substituted or unsubstituted hydrocarbon radical (e.g. C1-C6 alkyl, hydroxyalkyl, polyethanoxy, aryl, aralkyl, alkaryl, chlorophenyl or sulphophenyl) and salts thereof, particularly alkali metal salts.  The above whitening agents may also be added in conjunction with other whitening agents.
Patent GB-1005259-A (GB)
Title: Bus structure enclosure
IPC: H02G5/06
Filed: 1963-07-30
Abstract: 1,005,259. Bus structures; couplings. CANADIAN WESTINGHOUSE CO. Ltd. July 30, 1963 [Aug. 25, 1962], No. 30078/63. Headings H2C and H2E. A polyphase bus structure comprises three parallel tubular conductors 5, 6, 7 supported by a member 9 within a rectangular metal enclosure. The end of each tubular conductor is compressed to provide a flat surface on each side, and the conductors are connected to further corresponding conductors by straps 15, 16 which are bolted to the flat surfaces. After two conductors are so interconnected, an insulating sleeve 18 which is slightly larger than the insulating tube 8, which covers most of the conductors, is slid forward over tube 8 until it covers the complete joint. Sleeve 18 may be taped to tube 8 with a thermosetting tape which may be cured in place. The rectangular metal enclosure comprises U-shaped sections 12 with L-shaped flanges on their ends to permit fastening of the sections together and panels 13 also of U-shaped cross-section pushed up into sections 12 and bolted into place. To weather-proof the joint between sections a trim strip 19 (Fig. 3A) is applied to cover the flanges in such a manner as to produce a labyrinth-type seal which does not require a gasket to make it waterproof. A thermal barrier comprising a pair of insulating sheets 29 and 30, e.g. glass fibre impregnated with resin, with a polyurethane foam poured between them, is placed in the rectangular metal enclosure at the end to prevent condensation of moisture from the warm interior air in the external sections of the duct. When the enclosure is intended for vertical outside use, certain modifications are made in the flanges (Fig. 4, not shown). Turns in the bus structure are constructed by using angled straps and an elbow of insulating material corresponding to tube 8 (Fig. 5, not shown). Insulating tube 8 and support member 9 are made of glass fibre impregnated with polyester preferably halogenated to make it fire retardant. Member 9 has ridges 10 to increase the path length between the conductors and also aluminium hydroxide is added to the glass fibre so that it has anti-track characteristics.
Patent GB-665438-A (GB)
Title: Buttonhole sewing machine
IPC: D05B3/10
Filed: 1949-06-08
Abstract: 665,438. Sewing-machines. NOYES, R. C. (Reece Corporation). June 8, 1949, No. 30278/49. Divided out of 665,399. Drawings to Specification. Class 112. Cutting buttonholes and the like.-In a machine having stitching mechanism and a work clamp moved relatively for the formation of a line of stitches and a slit cutter actuated as the stitching progresses, the cutter has a movement lengthwise of the slit controlled, so that it may differ from the length of the line of stitches, by means actuated in predetermined relation to the change in relative position of the needle and work-clamp. The apparatus described is the same as that described in Specification 665,440.
Patent GB-1439881-A (GB)
Title: Preparation of salts of polyimide precursors
IPC: C08G73/10
Filed: 1974-07-09
Abstract: 1439881 Polyimide precursor salts NITTO ELECTRIC INDUSTRIAL CO Ltd 9 July 1974 [9 Nov 1973] 30459/74 Heading C3R 1,2,3,4 - Butanetetracarboxylic acid or its anhydride is reacted with a diamine in a watersoluble solvent, and optionally water, until the Acid No. is 3 to 30% of that of the initial reaction mixture and the resulting polyimide precursor is then converted to its ammonium salt. Numerous amines and solvents are mentioned. The resulting solution may be diluted with water and blended with other water-soluble resins, e.g. urea, melamine/HCHO or phenol/HCHO condensates, water-soluble Ti and Zn compounds, e.g. dihydroxy bis-(hydrogen-lactate) titanium or its NH 4  salts, or with 0À01 to 0À1 wt. per cent of Sn, Zn, Mn, Fe, Co or Pb, octenoate or naphthenate. In specific examples the diamine is 4,4<SP>1</SP>-diaminodiphenyl methane or ether or hexamethylene diamine and the solvent triethylene glycol, ethylene glycol, glycerol or ethylene glycol monomethyl ether. Aqueous solutions of the obtained ammonium salts of the polyimide precursors are used as an insulating enamel for copper wire or to cast films on glass plates.
Patent GB-671544-A (GB)
Title: Improvements relating to vehicle direction indicators
Inventor: BROWN WALTER HENRY
IPC: B60Q1/36
Filed: 1949-11-28
Abstract: 671,544. Road-traffic signals on vehicles. TRICO-FOLBERTH, Ltd. Nov. 28, 1950. [Nov. 28, 1949] No. 30474/49. Class 118 (ii). In a vehicle direction indicator of the solenoid-operated semaphore arm type having a spring-loaded saddle piece coupling the solenoid core to the arm adapted to "lock" the arm in its unoperated position and yet permit manual lifting of the arm, for example for cleaning purposes, a spring-loaded finger is provided pivoted on the core head and presses against the inner end of the arm so as to exert a turning force to return the arm to its unoperated position. An indicator arm 8 is pivoted at 7 in the side pieces 6 of a casing with base portion 5 carrying a solenoid 9. The inner end of the arm carries a saddle piece 17 pivoted. on pin 18 and normally held in the relative position shown in the part-sectional view of Fig. 3 by means of a spring 20 and stops 21. A crosspin 19 on the saddle piece is engaged by the face 16 of core head 12 when the solenoid is energized and the arm is thereby raised to a horizontal position, at the same time stressing a spring 25 attached to a finger 23 which is pivoted in a central slot in the core head 12 and co-operates with a cam surface 30 on the end of the arm 8. When the solenoid is de-energized this spring- loaded finger 23 aids the return of the arm to the vertical position and ensures that the cross pin 19 engages the surface 14 of core head 12 and thereby provides a restraining force to "lock" the arm in its unoperated position. The cam surface 30 and finger 23 are arranged to give increasing mechanical advantage as the arm falls. Ball bearings 31 are provided to reduce friction between the core head 12 and base portion 5 of the casing. A slot 15 is provided in the core head 12 so that when the arm is raised manually cross pin 19 may ride up the surface 14 under stress of spring 20 enter slot 15 and thus permit the arm to be easily raised the full amount.
Patent GB-748922-A (GB)
Title: Improvements in or relating to ploughs
IPC: A01B63/02
Filed: 1953-11-05
Abstract: 748,922. Agricultural implements. ILES, G. A. Nov. 5, 1954 [Nov. 5, 1953], No. 30585/53. Class 6 (1). To enable a plough 10 to be connected to a tractor 11 in a laterally offset position relatively to the tractor for ploughing close to the boundary of a field, a cross-shaft 14 is provided with two sets of towing brackets 15, 16 and 17, 18 and an auxiliary upstanding bracket 20 for connection to the tractor power-lift attachment. As shown in Fig. 1, the plough is connected in the offset position. For normal ploughing the towing links 23, 24 of the tractor are attached to the brackets 17, 18 and the upper link 25 is connected to a bracket 12 mounted on the plough frame and connected to the cross-shaft by a clamp 13. To adjust the furrow width the cross-shaft 14 is adjusted relatively to the plough frame by means of a handle 44 fixed to the cross-shaft and having a plunger 46 which co-operates with a detent 48 mounted on the plough frame. The clamps on the cross-shaft are locked in a position which will permit rotation of the cross-shaft but are sufficiently tight to prevent longitudinal movement of the crossshaft.
Patent GB-472512-A (GB)
Title: Improvements in connection with memorials for graves
IPC: E04H13/00
Filed: 1936-11-10
Abstract: 472,512. Memorial tablets. BOLTON. T. J. Nov. 10, 1936, No. 30596. [Class 20 (i)] Memorial tablets for graves are provided with holders of inverted U-shape with flanges tc overlap the memorial card placec therein, the lower end of said holder being provided with a space through which the card is inserted and withdrawn. Ir one form, Fig. 1, the tablet 1 is provided with a holder 2 having undercut edges 4 and the supporting ledge 5 for the inserted card is spaced apart from the lower ends of the holder and has a rounded edge to provide a space 8 through which the card is inserted and withdrawn. In a modification Fig. 3, the lower portions of the sides 10 of the holder are recessed to furnish a space 12 through which the card is passed, the supporting ledge 13 being an integral part of the holder frame. The holder frame may be cast integrally with the memorial tablet. The base of the tablet is provided with an anchoring portion 17.
Patent GB-215677-A (GB)
Title: Self-lubricating pulley or wheel for colliery haulage and the like
IPC: F16N9/02
Filed: 1923-12-06
Abstract: 215,677. Aytoun, R. Dec. 6, 1923. Channels and reservoirs in pulleys for the ropes of colliery haulage plants, two main lubricant-containing chambers 4 communicate with secondary chambers arranged round, and open at their inner sides to, the central spindle 3. A cover-plate 8, provided with a central hole 9 substantially larger than the spindle, is held between the top surfaces of the chambers and a covering washer 8<a> held down by a cotter pin. By drawing up pins 10 until they are disengaged from lugs 12, the cover plate can be turned at right-angles to give access to the chambers. A ring 19 is provided to hold lubricant in proximity to the lower surface of the pulley.
Patent GB-1433808-A (GB)
Title: Process for the production of cured aromatic resins
IPC: C08F291/00
Filed: 1973-06-28
Abstract: 1433808 Cured aromatic resins TEIJIN Ltd 28 June 1973 [28 June 1972 18 July 1972 11 Sept 1972 17 Oct 1972 6 Feb 1973] 30732/73 Heading C3P [Also in Division C2] A cured resin is prepared by polymerizing, by free radical polymerization, at least one compound selected from (I) esters of a naphthalenecarboxylic acid of the formula wherein each of the R<SP>1</SP> radicals, which may be the same or different, is a hydrogen atom or a methyl group; each of the R<SP>2</SP> radicals, which may be the same or different, is an alkyl group of 1-6 carbon atoms, chlorine or bromine; m is 2, 3 or 4; and n is 0, 1, 2, 3 or 4; subject to the proviso that when m is 2, the two groups are at the 1,5-, 2,6- or 2,7-positions; and (II) prepolymers of one or more esters as defined in (I) wherein m is 2; the polymerization optionally being carried out in the presence of (III) a copolymerizable ethylenically unsaturated organic monomer or polymer which is different from I and II. In the examples diallyl- 2,6, 2,7- and 1,5-naphthalene dicarboxylates, tetraallyl ester of 1,3,5,7-naphthalene-tetracarboxylic acid and dimethallyl-2,6-naphthalene dicarboxylate are homopolymerized, prepolymerized and further polymerized or copolymerized with diallyl isophthalate prepolymer, urethane-modified 1,2-polybutadiene, organopolysiloxane containing vinyl groups, styrene, diallyl isophthalate and unsaturated polyesters prepared from isophthalic acid, propylene glycol, maleic anhydride, dimethyl terephthalate and phthalic anhydride in the presence of dicumyl peroxide, benzoyl peroxide, glass fibre treated with borane, acetone, t-butyl perbenzoate, zinc stearate, glass fibres, calcium stearate, 2,2-bis- [3,5 - dibromo - 4 - (# - bromoethoxy) - pheny]- propane, antimony trioxide, n-propanol, powdery polypropylene terephthalate, hydroquinone, cobalt, naphthenate, methyl ethyl ketone peroxide, blue pigment, calcium carbonate and glass dropped strands treated with vinyl silane in moulds.
Patent GB-603017-A (GB)
Title: Improvements in or relating to compound diaphragms
IPC: H04R7/08
Filed: 1945-11-16
Abstract: 603,017. Diaphragms. DENT, H., and WOLFF, J. Nov. 16, 1945, No. 30744. [Class 40 (iv)] A compound diaphragm consisting of two or more diaphragms 1, 2, all of the same diameter, at least one of which is of magnetic material, has the convex faces of two adjacent diaphragms next to one another. The diaphragms may be mounted in a frame 3 or clamped at their periphery between the casing of the instrument of which the diaphragm forms part and the inside of its cover, and may, if desired, be separated by oil films.
Patent GB-489592-A (GB)
Title: Improvements in helical chutes
IPC: B65G11/06
Filed: 1937-11-09
Abstract: 489,592. Shoots; bunkers. WESTFALIA - DINNENDAHLGROPPEL AKT.-GES. Nov. 9, 1937, No. 30748. Convention date, Nov. 9, 1936. [Class 78 (i)] [Also in Group X] A helical shoot adapted to serve also as a bunker, and provided, for example, in a staple shaft of a coal-mine, comprises a helical shoot track 2 secured by its outer raised edge to a tubular casing 1 and with its lower inner edge disposed in proximity to the axis of the casing.
Patent GB-603027-A (GB)
Title: Electric selector switch
IPC: H01H63/04
Filed: 1945-11-16
Abstract: 603,027. Electric selectors. STANDARD TELEPHONES & CABLES, Ltd. Nov. 16, 1945, No. 30790. Convention date, Dec. 13, 1944. [Class 40 (iv)] In a selector switch a brush is moved in and out of engagement with its corresponding row of terminals by the relative movement of the brush and an actuating member carried on the brush carriage. The invention is described with reference to a switch such as described in Specification 563,501, in which the brush carriage has a reciprocal rectilinear movement. Supported on separate pins 2, Figs. 1 and 3, two sets of four brushes are arranged so that contact is made between one set and its corresponding contact pins 9 when the brush carriage moves in one direction and between the other set and its pins when the carriage moves in the opposite direction. The brushes consist of inner and outer springs 4, 5 which are inwardly tensioned and embrace the brush guides 28. which are rigidly attached to the brush carriage. When the pin 2 is in the lower position, as seen to the left of Fig. 3, the end portions 8 of the brush spring inwards to make contact with the pins 9. When the pin 2 is moved upwards, as seen to the right of Fig. 3, the brush springs are pulled up and contact between the guide 28 and the portion 27 of the spring 5 forces the springs apart so that contact with the pins 9 is prevented. The pins 2 project through slots 22 in the shift bars 23, Fig. 1, the slots being so shaped that lateral movement of the shift bar raises or lowers pin 2. The slots in the shift bars for the two pins 2 are arranged to move the respective pins in opposite directions. The requisite lateral movement is imparted to the shift bars at the end of travel of the brush carriage in either direction through the impact of their contact portions 25 with stationary buttresses such as 26. The guide member 28 has a portion of reduced thickness 30, Fig. 9, to accommodate and limit the inward movement of the brush springs, and has a groove 31 flared at 32 which ensures correct alignment of the pins 9 as they pass through it to the brush. Contact between the brush and the feeder bar 7 is effected by a resilient extension 6 of the spring 4. Specifications 591,523 and 591,532 also are referred to.
Patent GB-246773-A (GB)
Title: Improvements in tubs for packing fruit
IPC: B65D85/34
Filed: 1925-12-07
Abstract: 246,773. Hitchins, W.. G. Dec. 7, 1925. Veneer casks.-A multi-ply fruit tub comprises a two-ply body a, in which the grain of the inner sheet of veneer extends circumferentially while that of the outer sheet extends longitudinally, and a bottom d of two superposed discs of multiply veneer. The upper disc is fitted tightly into the annular lower end of the body and the second disc fits over the end. A metal boop f embraces the lower end of the body and the inturned edge thereof supports the second disc forming the bottom. At the upper end a deep two-ply hoop j is inserted between the metal hoop k and the body to increase the diameter and facilitate the reception of the base of a superimposed tub. A two-ply hoop b is riveted to the mid-portion of the body. The whole tub may be tarred, impregnated or coated as protection against the influence of moisture.
Patent GB-393848-A (GB)
Title: Improvements in control devices for hot water heating systems
IPC: F24D19/10
Filed: 1932-11-02
Abstract: 393,848. Heating buildings. ROSENBLAD, C., 3, Karlavõgen, Stockholm. Nov. 2, 1932, No. 30914. Convention date, Nov. 2, 1931. [Class 64 (ii).] In a hot-water supply and heating system, wherein the water cooled in the radiators is returned partly to the boiler and partly through a shunt pipe to the riser or supply main to mix with hot water from the boiler, valves in the riser and return main respectively are interconnected and adjusted by a common operating member. The boiler 1 supplies hot water partly to an indirect water heater 3 for tapping purposes and partly to a riser 5 supplying radiators 101 and connecting with an expansion tank 6. The riser and return main 9 are connected by the shunt pipe 10. Valves are arranged at the junctions of the shunt pipe with the riser and return main respectively and may be opened and throttled simultaneously by turning a handle 16. A V-shaped pipe 18 connects the boiler outlet pipe 4 with the riser or shunt pipe to provide a permanent free outlet to the expansion tank. Thermostats may be used to control the handle 16. In a large installation, Fig. 3 (not shown), a centrifugal pump may be used to effect circulation.