baber/WOPTO huggingface dataset:
Patent GB-704414-A (GB)
Title: Improvements in or relating to 2-(2-methyl-5-halophenyl-mercapto)-4-substituted -benzoic acids and the preparation thereof
Filed: 1951-11-08
Abstract: The invention comprises 2:4-disubstituted benzoic acids of the formula <FORM:0704414/IV(b)/1> where R is a halogen atom, a lower alkyl radical of 1-4 carbon atoms or a lower alkoxy radical of 1-4 carbon atoms.  The halogen substituent may be a chloro, bromo, iodo or fluoro atom.  It comprises also the preparation of the above compounds by heating a metal salt of a 2-halo-4-R-benzoic acid with a metal salt of 2-methyl-5-halothiophenol in the presence of a copper powder, copper halide or copper oxide catalyst.  In examples (1) the sodium salt of 2-methyl-5-chlorothiophenol is heated with potassium 2:4-dichlorobenzoate in the presence of copper powder to give 2- (2-methyl-5-chlorophenylmercapto) - 4 - chlorobenzoic acid; (2) the method of (1) is used to prepare-2-(2-methyl-5-chlorophenyl-mercapto)-4-methyl - benzoic acid, and (3) the method of (1) is used to prepare 2-(2-methyl-5-chlorophenylmercapto)-4-methoxybenzoic acid.  Many compounds are specified in which the group R is a bromo, iodo, ethyl, isopropyl, n-butyl, isobutyl, ethoxy, n-propoxy, isobutoxy or n-butoxy radical and the halogen substituent on the 2-methylphenyl ring is a bromine, iodine or chlorine atom, which are prepared according to the examples.  2-Methyl-5-chlorothiophenol is prepared by (a) diazotizing 2-amino-4-chlorotoluene, treating with potassium ethyl xanthate, hydrolyzing with alcoholic potassium hydroxide to give ethyl 2-methyl-5-chlorophenyl sulphide and acidifying to give the desired product; (b) diazotizing 2-amino-4-chlorotoluene, treating with sulphur dioxide and copper powder to give 2-methyl-5-chlorobenzenesulphinic acid and reducing with tin and hydrochloric acid; (c) preparing 2-bromo-4-chlorotoluene by Sandmeyer reaction on 2-amino-4-chlorotoluene, reacting with magnesium turnings to give the corresponding Grignard reagent and treating with sulphur or (d) reacting p-chlorosulphonic acid with p-chlorotoluene to give a mixture of isomeric sulphonyl chlorides and reducing with zinc dust. The corresponding 5-bromo- and 5-iodo thiophenols may also be made by method (a) above.
Patent GB-260269-A (GB)
IPC: B02C13/28
Filed: 1926-10-20
Abstract: 260,269. Bossert Corporation, (Assignees of Clement, W. J.). Oct. 20, 1925, [Convention date]. Impact pulverizers.-A hammer for use in grinding, crushing, and pulverizing mills comprises a shank, a head of substantially uniform thickness movably carried by the shank and having a plurality of striking faces, and means for holding thehead against movement with any selected face in operative position. The hammer head 3. Figs. 3 and 4. consists of a block having a plurality of flat faces 10 arranged substantially perpendicular to radial lines from their centres to the pivotal centre of the head, with intervening stepped portions 11. The head 3 is mounted on the enlarged intermediate portion 13, Fig. 5, of a pivot 2 carried by a shank composed of a pair of plate members 1 which are hinged on a pivot shaft 4 on the rotary drum 5. The portion 13 is longer than the thickness of the head so that the shoulders 14 form abutments against which the inner faces of the members 1 engage. The head is fixed so that one of its faces 10<a> is parallel to the longitudinal axis of the shank, this face and the adjacent stepped portion 11<a> extending outwardly therefrom then forming the operative striking faces of the hammer. A plate 20. Fig. 1. carried by the shaft 4 has its outer end 21 notched to form an inner end; face 22 and outwardly-extending stepped faces 23 to engage a pair of step faces on the head and lock the head in position. To change the angular position of the head. the shaft 4 is removed to free the locking-member 20 from the head. When abrasive materials are being ground, the holes in the members 1 through which the pins 2 pass are countersunk and the ends of the pins riveted flush with the outer faces of the shank.
Patent GB-977923-A (GB)
Title: Compensated coupling units for fluid conduits
Inventor: PARLASCA EDWIN WALKER
IPC: F16L51/03
Filed: 1963-07-02
Abstract: 977,923. Expansion joints. CALUMET & HECFA Inc. July 2, 1963, No. 26208/63. Heading F2G. An axially deformable coupling unit 12 comprises a corrugated tubular member 20 and corrugated tubular members 22, 24 of equal cross-sectional area connected respectively to opposite ends of a member 20, the latter having a cross-sectional area that equals twice the cross-sectional area of each of the members 22, 24, and the normal volume of the member 20 equalling the sum of the normal volumes of the members 22, 24, a set of rigid struts 42 coupled to the member 20 at the connection thereof with the member 22 and to the remote end of the member 24, and a set of rigid struts 40 coupled to the member 20 at the connection thereof with the member 24 and to the remote end of the member 22. As shown, the bar stock or channel-section struts are arranged in diametrically opposite pairs and are a sliding fit within coupling rings 26, 28. Axial forces tending to compress the unit cause the member 20 to lengthen to increase the volume thereof and simultaneously cause the volume of the members 22, 24 to decrease by a decrease in length of those members; conversely, the imposition of a force tending to elongate the unit respectively causes a decrease and increase in length of the members 20, and 22 and 24. The members may be annularly or helically corrugated. To accommodate angular flexing of the unit, flexible joints 14, 16 are attached to the unit 12, these joints comprising corrugated tubular members 44 the ends of which are connected by bifurcated lugs 56 to gimbal rings 58.
Patent GB-378238-A (GB)
Title: Improvements in or relating to appliances for playing and practising golf and like ball games
IPC: A63B47/00
Filed: 1931-09-19
Abstract: 378,238. Golf-practising appliances. REID, G. H., 15, Gardnor Mansions, Church Row, Hampstead, London. Sept. 19, 1931, No. 26264. [Class 132 (ii).] An appliance for playing and practising golf and like ball games comprises an upwardly extending magazine for balls which supports at its upper end a rest to hold the head or body of the player while a stroke is being made. As shown, the ball magazine comprises a vertical tube 15 from which balls are fed one at once on to a tee 39 by rotating a shoot 24 downwardly about its pivot 25. The shoot in rotating actuates a trigger device 30 to move the lowermost ball into the shoot. The magazine is adjustable in height and is provided with a telescopic arm 17 adjustably supporting a head-rest 18. Two supports 13, 14 are provided on which the magazine may alternatively be stood to allow the device to be used by right- and left-handed players. The magazine may be of lattice or skeleton formation and the balls may be urged downwardly by a spring. The base 10 on which the player stands is provided with a replaceable strip 38 of rubber or other material to carry the tees 39.
Patent GB-1010361-A (GB)
Title: Improvements in or relating to electrical insulation
Inventor: ASHPOLE RAYMOND SIDNEY
IPC: C04B41/50
Filed: 1961-07-20
Abstract: Insulating material consists of an asbestos fabric impregnated with a cement formed by mixing a micaceous powder with a solution of phosphoric acid.  The powder may be of phlogopite or muscovite mica. Use of the treated fabric in tape form for the main wall insulation of a coil of a dynamo-electric machine is described, used with a mica tape or mica flakes to increase the dielectric strength and maintain the insulation level in a damp atmosphere. The mica tape may be in the form of one or more layers of micafolium tape having an asbestos fabric base with mica flakes built up thereon using silicone varnish. The asbestos tape may be applied over the micafolium tape with some of the micaceous cement applied between the layers, the assembly is then heated to 400 DEG C. at which temperature the cement becomes cured and bonds the layers together.
Patent GB-424072-A (GB)
Title: Improvements in or relating to printing plates and printing presses
IPC: B41L15/06
Filed: 1933-09-23
Abstract: 424,072. Printing-surfaces. ECONO PRODUCTS, Inc., 52, James Street, Rochester, New York, U.S.A.-(Assignees of Wilson, S. C.) Sept. 23, 1933, No. 26295. Convention date, Sept. 23, 1932. [Class 100 (ii)] A printing-plate, particularly for use in small rotary presses adapted to receive separate types, consists of a printing face 1, Fig. 4, of loaded rubber, i.e. rubber mixed with lampblack or other substance adapted to modify its resilience and hardness, secured, e.g. by vulcanization, to a backing plate 2 of resilient flexible metal. A sheet 9 of fabric may be interposed between the rubber and metal. The plate is secured to the printing-cylinder 7, Fig. 2, by bending it and inserting its ends beneath flanged bars 3 inserted in a pair of the slots 8 provided for the reception of types. Specification 423,250 is referred to.
Patent GB-218539-A (GB)
Title: Improved power-transmitting and change-speed gear for motor-cars
IPC: F16H3/36
Filed: 1923-10-22
Abstract: 218,539. Ide, A., and Bailleux, G. Oct. 22, 1923. Variable-speed gearing comprises a main driven wheel 4 connected by a pinion 6 to a disc 7 having rings of teeth adapted to be engaged alternatively by a spur pinion 9 sliding on a shaped driving- shaft 13. A high-speed drive to the wheel 44 direct is obtained through a bevel pair 8, 5 entrained by a cone clutch 12. The teeth on the disc 7 are rounded as shown in Fig. 2. The wheel 4 may be fast to a vehicle differential 3 and the elements 9, 12 may be operated by a selective control. Reversed driving is obtainable by moving the pinion 9 beyond a stub shaft 17 which supports the disc 7.
Patent GB-1338526-A (GB)
Title: Photographic apparatus
IPC: G03B17/52
Filed: 1972-06-06
Abstract: 1338526 Reflex cameras POLAROID CORP 6 June 1972 [7 June 1971] 26383/72 Heading G2A A folding reflex camera has a baffle member 24 which serves the dual purpose of blocking extraneous light from the photo-sensitive film during an exposure and forming a light-protective labyrinth seal during focusing. Fig. 1 shows a camera of the type disclosed in Specifications 1292239 and 1292240 in the exposure mode. Light rays 23 entering the objective 16 in an axial direction are reflected from a mirror 18 to the photo-sensitive surface of the uppermost film unit 22 in a cassette 14. A baffle 24, pivoted at its lowest point on a section of the camera body, is spring-loaded anti-clockwise into the position shown, in which it does not interfere with the normal image-forming rays 23, but blocks extraneous light such as rays 26 from reaching the film and causing fogging. The mirror 18 is mounted on the underside of a capping plate 42, which has on its upper side a focusing screen (44), Fig. 3, (not shown). In the focusing mode the capping plate 42 is pivoted downwards so as to cover the film unit and protect it from light. During this pivoting movement a guide surface 46 engages a lobe 48 at the upper end of the baffle and causes this to pivot clockwise. The baffle has an offset portion 52, so that it forms a labyrinth seal with the lip (54) of the plate (42) Fig. 3, (not shown).
Patent GB-431188-A (GB)
Title: Improved clip device for suspending or holding small articles, for example, towels
IPC: A47K10/14
Filed: 1933-09-26
Abstract: 431,188. Towel &c. holders. AYRE, W. H., and EDLEY, G., 13, Jessop Street, Sheffield. Sept. 26, 1933, No. 26450. [Class 52 (v)] A towel or cloth holder comprises a slitted rubber disc A held loosely in a groove D between an apertured front member B and a rear member C fitting into the front member and adapted to be fixed to a wall or other surface. The aperture G of the front member is flanged at E to form the groove D and the rear member C has a central aperture J and is fixed to the front member by screws H- on its periphery. Lugs or wings may be provided on the device for securing it to the wall, or as shown a sucker K may be fixed to the rear member.
Patent GB-803432-A (GB)
Title: Improvements in methods of condensing metal halide vapors
Inventor: KRAUS PHILIP BERKELEY
IPC: C01F7/56
Filed: 1955-09-16
Abstract: A gaseous mixture which contains vapours of a metal halide which condenses to the solid state, e.g. ferric chloride, and also vapours of a metal halide which condenses to the liquid state, e.g. titanium tetrachloride, is passed into a surface condenser wherein an inert liquid is flowing in the form of a film over the vapour-side of the cooled surface, whereby only the first metal halide is condensed but incrustation of the cooled surface by the solid condensate is obviated.  The vapours of the second metal halide may be condensed in a secondary condenser.  The process is particularly applicable in the separation of ferric chloride from gaseous titanium tetrachloride produced by the chlorination of titanium ores and concentrates.  The apparatus shown comprises a casing 1 within which are two tubes 2 mounted between collars 3 and 4.  Cooling water is supplied to the casing through inlet 7 and is discharged through outlet 6.  A gas mixture containing TiCl4, FeCl3 and <PICT:0803432/III/1> other metallic chlorides, withdrawn from the one-chlorination furnace at a temperature of about 1000 DEG  C., is introduced into the lower casing head 10 via inlet 11, and flows up tubes 2 wherein it is cooled to about 300-500 DEG  C.  Tubes 2 extend a little way above collar 3; and a reservoir 8 surrounds their upper ends.  Liquid TiCl4 is fed through conduit 14 into reservoir 8, and flows over into tubes 2 forming a falling film on the entire inside surface thereof. Ferric and ferrous chlorides, and any MgCl2 and CaCl2, are condensed from the rising gas, and the condensate is washed down the tubes by the liquid TiCl4, so that a thin slurry collects in reservoir 12. This slurry, which is withdrawn through outlet 13, contains 50 to 80 per cent TiCl4 which is recovered by distillation in still 23.  The gaseous TiCl4 leaving the upper ends of tubes 2 flows through head-member 9 to secondary condenser 15 which is suitably cooled by water-jacketing.  The TiCl4 condensate is collected in reservoir 16; part of it is withdrawn from the system through conduit 181, and the remainder is pumped through line 20 for use as irrigating liquid in tubes 2.  The uncondensed gases leaving outlet 17 may be recycled to inlet 11, or they may be passed to a brine-chilled condenser or to a surface-active adsorption system.  Surface condenser 15 may be replaced by a contact condenser into which, e.g., the slurry withdrawn through outlet 13 is sprayed.  A condenser is also described wherein the gases and the liquid film flow concurrently downwards through the condenser tubes.  The condensation of zinc chloride, aluminium chloride, zirconium chloride, and chromic chloride, is also referred to.  Liquids which may be used to form the flowing film are silicon tetrachloride, carbon tetrachloride, tin tetrachloride, chlorobenzene, and trichloropropane. Specifications 550,750, 679,537 and 776,295 are referred to.
Patent GB-462524-A (GB)
Title: Improvements in and relating to electric regulating apparatus
IPC: H02P9/14
Filed: 1936-10-01
Abstract: 462,524. Automatic control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 1, 1936, No. 26668. Convention date, Oct. 1, 1935. [Class 38 (iv)] Electromotive force.-An arrangement for regulating the voltage of a machine having a separate exciter comprises a core having windings supplied respectively with A.C. from the machine output and from the armature of the exciter to produce in a further winding on the core a current which is supplied to an auxiliary winding on the exciter through a rectifier. The exciter 2 is provided, in addition to its normal field winding 13, with an auxiliary boosting field winding a and an auxiliary bucking field winding b these windings being fed respectively through rectifiers from the windings g, h of transformers 3, 4 having primaries e, f, supplied with A.C. obtained from the exciter armature through slip rings, and primaries c, d supplied with A.C. proportional to the line voltage 11. The windings e, c are opposed, the winding e being larger, and the windings f, d are additive, the winding d being larger. When the voltage of the line 11 drops, the current supplied to the winding a increases and that supplied to the winding b reduces to cause restoration, the reverse action occurring on a rise of voltage. In a modification for use on a D.C. system, an alternating current proportional to line voltage is obtained from an auxiliary alternator excited by the line voltage.
Patent GB-391681-A (GB)
Title: Improvements in or relating to signal communication systems
IPC: A43C11/00
Filed: 1932-09-26
Abstract: 391,681. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.- (Assignees of Pfister, A. ; 5312, 62nd Street, Ridgewood Plateau, Maspeth, Long Island, New York, U.S.A.) Sept. 26, 1932, No. 26687. Convention date, Sept, 24, 1931. [Class 40 (v).] An automatic volume control comprises a full wave attenuator connected across a line. The arrangement may be used for compressing or expanding volume to enable the signal to comply with the limitations of the apparatus in the system, which may be a transcontinental short wave broadcasting or cable circuit. The Figure shoes a pair of valves 10, 12 in push-pull as an attenuator, a rectifier R, fed from the input, and an inertia circuit 32, 34, 36 and an impedance 38. The required expansion or compression is obtained by adjusting resistances 29, 38 and the potentiometer 28 before application of the signal to the amplifier stage 4.
Patent GB-1071662-A (GB)
Title: Improvements relating to an apparatus for packing articles
Inventor: COLES ERIC NEVILLE
IPC: B65B5/02
Filed: 1963-07-05
Abstract: 1,071,662. Bag-making machines. WIX OF LONDON Ltd. July 3, 1964 [July 5, 1963], No. 26775/63. Heading B5D. [Also in Division B8] A continuously operating machine cuts blanks from a web, forms them into bags on formers and transfers them to a conveyer for transit past filling and closing devices. The web S, which may have a tear strip T secured to it, is fed beneath photo-electric print synchronizing means 19 to a roll 6 which grips it by suction. A knife 8 cuts it on the roll to form blanks which are transferred to mandrels on a turret 9. End inserts C may be provided, taken from a magazine or cut from a web and held by suction on the mandrel ends during folding of the blanks to form bags W. The bags are transferred to a conveyer 13 on which they are held by suction or grippers for passage beneath filling means (see Division B8).
Patent GB-895988-A (GB)
Title: Improvements in or relating to the manufacture of ceramic ware
IPC: B28B1/02
Filed: 1957-08-24
Abstract: 895,988. Shaping clay-ware. SERVICE (ENGINEERS) Ltd., and JOHNSON, J. A. Aug. 22, 1958 [Aug. 24, 1957], No. 26779/57. Class 87(2). In a machine for moulding ceramic ware of the type comprising a porous mould on a rotatable support below a rotary shaping tool having a cone-shaped operative end face of very obtuse apical angle, a reduced pressure is applied below the mould during moulding. A thick disc of clay is placed on a porous plaster mould 12 which has a contoured upper surface 18 and rests on a rim 14 of a supporting head 10 leaving a space 16 between the mould 12 and the head 10 which is rotatably mounted on a shaft 4. Shaft 22 carries a cam 24 which cooperates with rod 26 to produce the required movement of the cone-shaped tool as described in Specification 765,097, and a further cam 44 arranged so that when the rotating tool contracts the clay to form a plate, &c., valve 34 is actuated to connect the bore 28 of the shaft 4 and thus space 16 to a pipe 40 connected to a vacuum pump. When the plate has been shaped, the cam 24 causes the tool to be withdrawn and cam 44 actuates valve 34 so that the bore 28 is either connected to atmospheric pressure or to a source of compressed air. Specifications 633,324 and 792,844 also are referred to.
Patent GB-746363-A (GB)
Title: Improvements in or relating to the manufacture of frozen confectionery
IPC: A23G9/26
Filed: 1954-09-16
Abstract: 746,363. Frozen confections. BILLION, F. Sept. 16, 1954, No. 26876/54. Class 28(1). [Also in Group XIII] Coloured frozen confections are produced by cooling a first coloured syrup in a mould until a frozen layer is formed on the wall of the mould, removing the remaining liquid and inserting a second coloured syrup, cooling the mould until all the second syrup is frozen, removing the moulding from the mould and dividing it into a number of individual confections. By adding a further layer before the moulding is completed, a three-coloured moulding may be formed. As shown, a confection is formed in a mould 1 with three coloured syrups, cooling being done in a brine bath 3 to form layers 4, 6, 8, Fig. 6. Handles 9 are inserted in the syrup 8 before final freezing of the block which is then removed from the mould and divided up, Fig. 7. Preferably one or more of the syrups are transparent, but ice-cream may be used.
Patent GB-417543-A (GB)
Title: Improvements in or relating to cigarettes
IPC: A24D1/04
Filed: 1933-09-29
Abstract: 417,543. Cigarettes. BUNTING, F. T. S., 85, Stonefield Road, Hastings, Sussex. Sept. 29, 1933, No. 26882. [Class 130.] Each end of a cigarette a is provided with an internal sleeve b so secured to the paper tube as to obviate any longitudinal passages or spaces therebetween. The sleeves may consist of a single layer of material or of a plurality of layers of equal or unequal lengths secured together ; they may be composed of perforated material or of material having serrated edges. The tipping material at the mouthpiece end may be of cork, waxed paper, transparent cellulose, damp-resistant material, crepe paper, or woven fabric treated with stiffening, damp-resisting or fire-proofing material. A ring c may be provided on the tube to distinguish the mouthpiece end of a cigarette and a cork tip or a filter tip e or both may be used. Each sleeve is applied to the cigarette so that the seam is in line with the seam of the cigarette, and to avoid a bulky seam the edges of the sleeve may extend short of the seam of the paper tube or they may be reduced in thickness by pressure.
Patent GB-1243305-A (GB)
Title: Process for preparing diorgano zinc compounds from organo bromides
IPC: C22C18/00
Filed: 1969-05-28
Abstract: 1,243,305. Diorgano zinc compounds. INTERNATIONAL LEAD ZINC RESEARCH ORGANIZATION Inc. 28 May, 1969 [21 Jan., 1969], No. 26884/69. Heading C2J. [Also in Division C7] Diorgano zinc compounds, in which the organo groups are C 1 -C 8  alkyl, alkenyl in which the double bond is more than two carbon atoms removed from the. zinc atom or alkynyl having internal carbon-carbon-triple bonds, are produced by (i) mixing an organo bromide with an alloy of zinc with at least one alkali metal selected from sodium, potassium and/or lithium in proportions of 1 to 3 wt. per cent sodium, 0.5 to 5À0 wt. per cent potassium and 1 to 10 wt. per cent lithium, the remainder being zinc, in a moisture-free atmosphere, the molar ratio of zinc to organo bromide being at least 1:1; and (ii) refluxing at 40 C. to 180 C. until the refluxing ceases. If the organo bromide is methyl or ethyl bromide the reflux should be carried out at a pressure greater than atmospheric. The product is recovered by distillation at reduced pressure in the absence of moisture. Mercury may be present in the zinc alloy. The diorgano zinc compounds specified are di-npropyl zinc, di - iso - propyl zinc, di - iso - butyl zinc, di - n - butyl zinc; di - n - amyl zinc, di-iso-amyl zinc, and di - n - buten - 3 - yl zinc.