baber/WOPTO huggingface dataset:
Patent GB-988403-A (GB)
Title: Retractable writing implement
IPC: E21B7/16
Filed: 1962-10-15
Abstract: 988,403. Multiple retractable writing instrument. W. NAGELE. Oct. 15, 1962 [Oct. 14, 1961], No. 38863/62. Heading B6P. Relates to a multiple retractable ball-point pen or pencil of the sliding carrier type shown in Fig. 1 and in particular to the actuating knob fixed to a sliding carrier. Each sliding carrier has at least one projection extending through a slot or aperture in the outer casing of the writing instrument and each knob has at least one aperture through which the projection engages. The end portion of the projection is bent over to secure the knob firmly to the sliding carrier. Fig. 2 shows a projection 22 bent over at 23 to engage a knob 21. Fig. 6 shows two projections 26 bent over at 27 to engage a knob 25. Figs. 8 and 9 show a projection 33 which passes through a slot 30 and wherein a hook 34 engages an aperture 31. The end of the slot 30 furthest from the aperture 31 may be open as illustrated in Fig. 10 (not shown). Figs. 12 and 13 show two projections 38 which engage the knob 36 through a slot 37.
Patent GB-1217787-A (GB)
Title: Method and apparatus for degassing iron-base melts
IPC: B22D1/00
Filed: 1968-08-14
Abstract: 1,217,787. Casting ingots; moulds. AMSTED INDUSTRIES Inc. Aug., 14, 1968 [24 Aug., 1967], No. 38876/68. Heading B3F. [Also in Divisions C7 and F3-F4] Fe-base melt 76 which has been degassed (see Division C7) is forced from a ladle 10 by compressed air up into a slab mould 74 of graphite blocks 78-81 with a gate 88 and a riser 84. A layer of slag 92 which accumulates during degassing protects the melt 76 when the ladle 10 is transferred to the pressure tank 60.
Patent GB-361170-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J21/20
Filed: 1930-12-30
Abstract: 361,170. Thermionic valves. EGYESœLT IZZOLAMPA •S VILLAMOSSAGI R•SZV•NYTARSAS‡G, Ujpest, near Budapest. Dec. 30, 1930, No. 39164. Convention date, Oct. 7. [Class 39 (i).] An electron discharge tube is provided with a plurality of filaments 2 lying in planes parallel with the axis of the stem 1 of the tube, the length of each filament extending in a direction at rightangles to the axis of the stem. The filaments are surrounded by grids 3 and anodes 4 which are parallel to the planes of the filaments. The filaments are joined in series by the connection of one end of each filament to a common plate 14. The grids consist of wire wound about rods 15, 16, the rods 15 being connected by ties 5. The anodes are formed from a single plate 4 bent into the form shown in Fig. 1 and attached to a common baseplate 13 by welding.
Patent GB-1411867-A (GB)
Title: Camera shutter
IPC: G03B9/36
Filed: 1973-08-21
Abstract: 1411867 Camera shutter SEIKO KOKI KK 21 Aug 1973 [23 Aug 1972] 39445/73 Heading G2A A camera shutter comprising structure has a window (2a, 2b), blade means (3 and 4) movable between open and closed positions to open and close the window, and operating means (5 and 6) mounted in the structure and movable to effect movement of the blade means between these positions, the operating means having at least one flexible portion (5b and 6b) which, on movement of the blade means into a predetermined said position or positions, rides over, and is releasably retained behind, a fixed abutment portion (9a and 9b) of the structure. In operation the shutter is placed in the set position, as in Fig. 1 by setting means (not shown), operation of release means (not shown), causes opening operating lever (5) to rotate clockwise under action of a spring to move position of pivot (5c) which causes the rest of the parallelogram linkage (slit-forming blade (3a) and opening auxiliary lever (7)) to move, slit-forming blade (3a) moving parallel to itself into the open position with its edge (3n) spaced from side (2d) of window (2a, 2b), and operating pin (5d) moving in slots (3g, 3h, 3j and 3k) so that window covering blades (3b, 3c, 3d and 3e) are pivoted about their common fixed pivot (3f) and into the fully open position Fig. 2 (not shown). When opening blade group (3) has nearly finished its opening movement, the flexible projecting portion (5b) rides over the downward projection (9a) and blade group (3) is decelerated by engagement of parts (5b and 9a) and because of friction between blades of the blade group (3) which occurs when the lever (5) is pressed downwards by part (9a), and rebound of blade group (3) is prevented. When opening operating lever (5) is released a timing device (not shown), is energized and after a predetermined time, whose value depends on the ambient light level, the closing operating lever (6) is released and rotates clockwise under the action of its spring (not shown), causing closing blade group (4) to move to its closed position Fig. 3 (not shown), and be decelerated by flexible projecting portion (6b) riding over downward projection (9b). Rebound of blade group (4) is also prevented.
Patent GB-857713-A (GB)
Title: Improvements in or relating to structures for use for example as floor mats
IPC: A47C7/22
Filed: 1957-12-19
Abstract: 857,713. Link mats. MOSS Ltd., R., and MOSS, R. C. Dec. 18, 1958 [Dec. 19, 1957], No. 39470/57. Class 142(4). [Also in Groups I and XIV]  A link mat consists of moulded synthetic resin links 11 assembled by any of their bores 13 on light alloy tubes 12 and retained by moulded plugs 15. The links may be flat or in the form of conjoined polygons.
Patent GB-1427390-A (GB)
Title: Substituted benzoyloxy benzoic acid phenyl esters and nematic liquid crystal compoitions containing them
IPC: C07C69/90
Filed: 1973-08-15
Abstract: 1427390 Liquid crystal compositions MERCK PATENT GmbH 15 Aug 1973 [19 Aug 1972] 39591/73 Heading C4X [Also in Division C2] A modified nematic liquid crystal mixture comprises at least one known nematic compound together with 1 to 35% by wt. of at least one ester of the formula wherein R 1  and R 2  are alkyl or alkoxy radicals which may be substituted by alkoxy radicals, the radicals R 1  and R 2  each containing up to 10 C atoms, X is CN or NO 2  and Y is H or the same as X. Specified known nematic compounds and ionizing and homotropically orienting additives are those of the following respective formulµ X is a halogen atom, and R 3  and R 4  are alkyl, alkoxy or acyloxy containing up to 18 C atoms, Z is R 5  or R 5  is C 6 -C 18  alkyl or C 4 -C 18  alkoxy or acyloxy, R 6  is alkyl, alkoxy or acyloxy containing up to 18 C atoms, and n is 0 or 1. The esters of Formula I are preferably added in such an amount to the known nematic compounds that they form eutectic mixtures therewith. Cholesteric materials may be present in up to 10% by weight. Examples are given in which specific nematic mixtures are prepared. The esters of Formula I generally have negative dielectric anisotropy which may predominate even in a mixture with components of positive anisotropy, and the mixtures are useful in electrooptic dynamic scattering display devices.
Patent GB-1329213-A (GB)
Title: Segmented gear wheel
IPC: F16H55/12
Filed: 1971-08-24
Abstract: 1329213 Toothed wheels DOMINION ENG WORKS Ltd 24 Aug 1971 [30 Nov 1970] 39675/71 Heading F2Q A large diameter heavy duty gear-wheel 14 comprises a number of replaceable toothed rim segments 16 each formed with end flanges 34 between which spacer shims are fitted to ensure correct relation i.e. common pitch circle and tooth parallelism of adjacent segments 16 which are then bolted together through the flanges 34 (Fig. 4, not shown), the segments each having an inner arcuate flange 28 by which they are separately bolted to the flange 12 of an associated driven shaft 11, the arrangement permitting a ready and economic repair of tooth damage or breakage in service, in any section of the gear rim, by simple replacement of the relevant releasably bolted toothed rim segment, or segments 16. The gear teeth (32) are formed on the segments 16 such that the juncture between adjacent segments is located in the root portion of the teeth (Fig. 4, not shown).
Patent GB-982306-A (GB)
Title: A machine for polishing or cleaning floors
Inventor: ZACHARIAS ERICH
IPC: A47L11/20
Filed: 1961-11-07
Abstract: 982,306. Floor polishing machines. MAUZ & PFEIFFER. Nov. 7, 1961, No. 39765/61. Heading A4F. In a floor polishing machine in which a bush support is driven by an electric motor through an eccentric and has apertures for the passage of air sucked up by a fan wheel mounted on the motor shaft, the brush 25 has a central conical aperture 26 adapted to engage the conical periphery 23 of the brush support 11 so that the brush may be press-fitted on to the support. The brush bristles are arranged in spaced groups to provide air passages through which air and dust may be sucked by the fan.
Patent GB-1503226-A (GB)
Title: Treating molten metal
IPC: C21C1/10
Filed: 1976-09-13
Abstract: 1503226 Treating molten metal; making SG iron BRITISH CAST IRON RESEARCH ASSOCIATION 13 Sept 1976 [30 Sept 1975] 39904/75 Heading C7D [Also in Division F4] In a method of treating molten metal, particularly. cast iron, with a vapourizable substance, the substance is placed in a lower chamber 5, of a preheated refractory lined vessel or ladle 1 through at least one aperture 4 in a refractory plate 3 separating the lower 5 and upper 6 chambers of the vessel, the plate being hinged to the lining 2 of the vessel at a predetermined distance from the base lining. In treating cast iron, the substance may be a ferrosilicon magnesium alloy containing 5 to 10% Mg, a Ni-15% Mg alloy, or mixtures of Si ferro-silicon and 5-20% Mg powder, or cast iron swarf and Mg powder with or without added ferro-silicon. The substance may be placed in the lower chamber via a tube 11 fed from a hopper 10 with the ladle tilted as shown in Fig. 4. Molten metal from a furnace is poured into the ladle 1 through a tundish 15 incorporated into the ladle cover 16 to react with the substance at aperture 4.
Patent GB-837347-A (GB)
Title: Protective paper for photographic purposes
IPC: G03C3/02
Filed: 1957-12-24
Abstract: A mixture of 4,41-dihydroxydiphenyl sulphide, diphenyl carbonate and the disodium salt of dihydroxydiphenyl sulphide is heated at 180-200 DEG  C. at a pressure 0.6-50 atmospheres whilst stirring and passing nitrogen over, whereby most of the phenol formed is distilled off. Residual phenol is removed by increasing the temperature.  The product is a high molecular weight polycarbonate.  Another polycarbonate is obtained by adding methylene chloride to a solution of 2,2,4,41-(dihydroxydiphenyl) - butane and 4,41 - (dihydroxydiphenyl) - ether in a 10% aqueous solution of sodium hydroxide, the oxygen is replaced by nitrogen at 20 DEG  C. over two hours, and phosgene introduced into the solution. Triethylamine and the sodium salt of diisopropyl naphthalene sulphonic acid are added, the resulting paste kneaded with water, then dilute hydrochloric acid, and finally with water, comminuted and dried under reduced pressure.  An emulsion, for applying to protective film paper, comprises the polycarbonate from 4,41-dihydroxydiphenyl dimethylmethane, a wetting agent, e.g. a phenol polyglycol ether, chlorotoluene and water.  The polycarbonates are soluble in methylene chloride, and the solution obtained can be blended with ethylene chloride, dioxane, benzene or toluene.  Other solvents specified are trichlorethylene, cyclopentanone and chloroform.  Specifications 772,627, 808,485, 808,486, 808,487, 808,488, 808,489, 808,490 and 809,735 are referred to.
Patent GB-1410854-A (GB)
Title: Pharmaceutically useful prostaglandin derivatives
IPC: C07C405/00
Filed: 1973-08-24
Abstract: 1410854 Prostaglandins SANKYO CO Ltd 24 Aug 1973 [1 Sept 1972] 40176/73 Heading C2C Novel compounds of Formula I in which A=C 4-8  alkylene, R<SP>1</SP> = C 4-10  alkyl, R<SP>2</SP>=H or C 1-6  alkyl and R<SP>3</SP>=H or C 1-6  alkoxycarbonyl, and pharmaceutically acceptable salts thereof, are prepared by reducing a compound of Formula II in which Z=a protected carbonyl group, with a metal hydride complex reducing agent, to give a compound of Formula III removing the protecting group from the compound of Formula III and, if appropriate, salifying the product obtained. Compounds I in which R<SP>2</SP> and R<SP>3</SP> are both H can also be prepared by hydrolysis of a compound I in which R<SP>2</SP>= alkyl and/or R<SP>3</SP>=alkoxycarbonyl. The corresponding groups can also be removed from compounds III, to give compounds in which R<SP>2</SP>=R<SP>3</SP>=H. Starting materials of Formula II and intermediates therefor are prepared as shown in the following reaction scheme Pharmaceutical compositions having oxytocic activity, for parenteral administration, comprise a compound I, or a pharmaceutically acceptable salt thereof, and a pharmaceutical carrier or diluent.
Patent GB-1213570-A (GB)
Title: Electrically operable adjusting means for azimuth and elevation adjustment
IPC: H01Q1/32
Filed: 1968-08-23
Abstract: 1,213,570. Rear view mirrors. TECHNISCHE INDUSTRIE A. C. KOOT N.V. 23 Aug., 1968 [24 Aug., 1967; 14 Aug., 1968], No. 40384/68. Heading B7J. [Also in Divisions F2 and H1] An electrically operable adjustment means for azimuth and elevation adjustment, in particular for a rear-view mirror on a motor vehicle, comprises a sleeve-like support 1, a hood 23 carrying the part to be adjusted and means whereby the hood may be rotated selectively about the axis of sleeve-like support 1 or about an axis at right-angles thereto on journals 22. An electric motor 2 is located within the support 1 and has an output shaft 3 carrying an armature 5 slidable within a magnet core 4, the armature 5 being pressed downwardly by a spring 6 so that when core 4 is not energized a pin 12 couples the shaft 3 to a sun gear 11 meshing stepped planet gears 13 which mesh a toothed rim 9 on a fixed casing 8 and a toothed rim 16 on a casing 14 carrying the journals 22. Hence operation of the motor 2 in this condition causes the hood 23 to rotate about the axis of support 1. Energization of electromagnet core 4 causes pin 12 to move upwardly and couple a sun gear 19 to driving shaft 3. Stepped planet gears 18 mesh sun gear 19 and toothed rims 17, 20 provided on casing 14 and a disc 21 respectively, whereby operation of the motor 2 in this condition causes the disc 21 to rotate about axis of support 1. A rounded projection 27 on the upper surface of disc 21 engages a block 26 which is adapted to slide in a transverse guide 25 in the hood 23 extending parallel to the axis of journals 22. Rotation of disc 21 is transmitted to block 26 and slide 25 to effect rotation of the hood 23 about the axis of journals 22. In a modification, a motor-car mirror 28 is mounted on a coupling element 30 having projections 34 adapted to engage a cam 35 driven through planetary gearing 11, 13, Fig. 6, for pivotal movement about pins engaging holes 32 in member 30. Disc 21 carries a crank-pin 36 which is connected to mirror 28 by means of a rod 37 whereby on rotation of disc 21, the mirror is rotated about pins 31. All the casings and gears can be moulded from plastics material. An electric switch for controlling the motor and solenoid is described (see Heading H1N).
Patent GB-1224889-A (GB)
Title: Improvements in or relating to welded railway crossings
Inventor: GARDNER LUCIEN ERNEST
IPC: E01B7/12
Filed: 1968-08-24
Abstract: 1,224,889. Welding by fusion. EDGAR ALLEN ENG. Ltd. 20 Aug., 1969 [24 Aug., 1968], No. 40550/68. Heading B3R. [Also in Division E1] A railway crossing (i.e. a portion of railway track where two tracks cross over) includes at least one crossing-piece 7 of austenitic manganese-nickel steel (forming a substantially X- shaped crossing-piece for two rails) which is welded to the ends of lengths 1, 2, 1A, 2A of carbon steel or manganese-nickel steel rails, the whole unit being ready for welding to carbon steel track rails on site. Butt or aluminothermic welding is used to assemble the crossing unit, which is then welded to the track rails in the same manner as the rails are welded together.
Patent GB-934380-A (GB)
Title: Polyamides
Inventor: COSTAIN WINSTON
IPC: C08K13/02
Filed: 1960-11-25
Abstract: Synthetic linear polyamides are stabilized against the destructive effects of exposure to heat and oxygen by the incorporation with the polyamide during or after manufacture of a water-soluble inorganic halide of a monovalent cation or the halide salt of an organic base, an oxy acid of phosphorus or salt thereof and a salt of manganese or cobalt.  The organic bases are defined as those bases which can become incorporated into the polyamide molecule without detriment to its stability when the polyamide is exposed to the combined influence of heat and oxygen. Specified organic bases are hexamethylene imine, morpholine, piperidine, pyrrolidines, open chain aliphatic diamines, piperazine and triethanolamine.  Specified manganese and cobalt salts are those of aromatic and aliphatic acids containing up to 18 carbon atoms, e.g. acetic, propionic, adipic, sebacic and dodecane-dioic acid and the halides and phosphates.  In the examples:- (1) polyhexamethylene adipamide delustred with titanium dioxide is dissolved in formic acid and cobalt oleate, potassium iodide and sodium dihydrogen phosphate added, the resultant composition being cast as a film; (2) discloses polyhexamethylene adipamide containing manganese acetate, potassium iodide and sodium dihydrogen phosphate and (3) which is as (2) substituting cobalt acetate for the manganese acetate. Specification 839,067 is referred to.
Patent GB-1305261-A (GB)
IPC: C08F14/06
Filed: 1970-08-25
Abstract: 1305261 Vinyl halide homopolymers STAUFFER CHEMICAL CO 25 Aug 1970 [19 June 1970] 40789/70 Addition to 1279501 Heading C3P Vinyl halide homopolymers are formed in a two-stage suspension polymerization in the presence of a free radical initiator, the first stage being carried to 10-60% conversion and the second being effected in the presence of a chain transfer agent and at a higher temperature than the first, e.g. the first is effected at 35-55‹ C. and the second at 60-80‹ C. In a preferred embodiment a "hot" catalyst is used in the first stage and a normal catalyst added together with the chain transfer agent in the second. Suspension technique is preferred although bulk, solution or emulsion techniques may be  used. In examples, the "hot" catalyst is diisopropyl peroxydicarbonate or t-butyl perpivalate, the normal catalyst is azo-diisobutyronitrile and the chain transfer agent is trichloroethylene or cumene.
Patent GB-1319527-A (GB)
Title: Headlights for motor vehicles
IPC: F21V19/00
Filed: 1970-08-25
Abstract: 1319527 Sealing headlamps FAUSTO CARELLO & C SpA 25 Aug 1970 [12 Nov 1969] 40901/70 Heading F4R A vehicle headlamp is sealed against ingress of moisture by provision of a protective cap 14 of resilient material which covers the hole at the rear of the reflector 1 through which the bulb base 8 projects. The cap comprises a first annular portion 15 which retains the cap in position at the rear of the reflector by fitting into a groove formed by the reflector 1 and a flange 36 extending outwardly from a collar around the hole in the rear of the reflector, and a second annular portion 17 which fits tightly around the bulb base, these two annular portions being connected by an interconnecting portion 19. Extensions 20 on the cap project at regular intervals from annular portion 15 and serve as flaps which can be gripped when fitting or removing the cap, which can be made of synthetic rubber. An annular bag 21 containing a hygroscopic salt is included inside the cap. A cap suitable for use with a halogen bulb is also described, Fig. 6, not shown.
Patent GB-1202304-A (GB)
Title: Method of and apparatus for driving pipes or like tubular structures into the ground
IPC: E02D7/20
Filed: 1968-08-29
Abstract: 1,202,304. Driving pipes into the ground. GEWERKSCHAFT EISENHUTTE WESTFALIA. 29 Aug., 1968 [14 Dec., 1967], No. 41234/68. Heading E1F. A pipe is driven longitudinally into the ground using piston and cylinder units which apply traction forces to the pipe in a number of steps with the units being relocated between steps, and which then apply thrust forces to the pipe in a further number of steps. As described a pipe to be driven horizontally into the ground is mounted on a framework in a trench. A pressure ring bears against the end of the pipe and is connectable by draw rods to the rams of the cylinders which are mounted in recesses in the sides of the trench and which react against spaced lugs on the framework. To apply thrust forces the rods are removed and the cylinders are placed on the other side of the pressure ring.
Patent GB-1604176-A (GB)
Title: Perfluorovinyl compounds and copolymers thereof
IPC: C08F8/12
Filed: 1978-04-19
Abstract: Fluorinated ion exchange polymers which have both pendant side chains containing carboxylic groups and pendant side chains which contain sulfonyl groups, when used in the form of membranes to separate the anode and cathode compartments of an electrolysis cell, permit operation at high current efficiency.  They are made by oxidation of flourinated polymers which have pendant side chains containing sulfinic groups, or both sufinic and sulfonyl groups.  The fluorinated polymers which have pendant side chains containing sulfinic groups, or both sufinic and sulfonyl groups, are in turn made from fluorinated polymers which have pendant side chains containing sulfonyl halide groups by reduction with, for example, hydrazine.  Fluorinated ion exchange polymers which have pendant side chains containing -OCF2COOR groups and also pendant side chains which contain sulfonyl groups can also be made by copolymerization of a mixture of monomers, one of which is a vinyl monomer which contains the indicated carboxylic group; and also by treatment of a polymer which contains -OCF2CF2SO3H or salts thereof with a combination of fluorine and oxygen.
Patent GB-1012671-A (GB)
Title: Two speed drive
Inventor: HILL-VENNING JOHN
IPC: F16H15/46
Filed: 1960-12-01
Abstract: 1,012,671. Change speed friction gearing. EPSYLON RESEARCH & DEVELOPMENT CO. Nov. 24, 1961 [Dec. 1, 1960], No. 41285/60. Heading F2D. A two-speed friction gear comprises a driving member having at least one concentric driving surface, the driving surface, or surfaces, being engageable with either of two concentric surfaces on a driven member, means being provided to change the direction of rotation of the driving member when the engagement is changed from one surface to the other. A three - speed reversible driving motor 25 is swung on pivoted links 44 and lever 31, pivoted at 32, by the action of two solenoids 36, 37 to engage concentric driving surfaces 27, 28 with concentric driven surfaces 22, 23 selectively to provide six speeds to a flywheel 19 coupled to a tape recorder capstan 13. The direction of rotation of the motor is reversed on change of ratio in the two-speed gear to maintain the output constant in direction. When the solenoids are not energized, the motor is retained in a neutral position by a spring device 41.
Patent GB-1468734-A (GB)
Title: Change-speed controls for motor vehicles having a sprung drivers cab
IPC: B62D33/06
Filed: 1974-09-23
Abstract: 1468734 Change speed control AUTOMOBILES M BERLIET 23 Sept 1974 [5 Dec 1973] 41311/74 Heading F2D A change-speed control lever 7, which extends upwardly through an aperture 8 in the floor 1a of a vehicle cab 1 mounted on springs 3 on a vehicle chassis 2, is ball-mounted at 9 on a support 10, which is constantly pressed against the underside of the cab floor la, around and closing the aperture 8, by springs 11, reacting against a sprung portion of the vehicle other than the cab, e.g. the engine M. The opening 8 may be sealed by a bellows 14 or baffle plate (15, Figs. 2 and 3, not shown). The cab 1 is linked at 5 for tilting about an axis 4, and the shift lever 7 and support 10 do not interfere with such tilting. The shift lever 7 operates a slide-turn selector shaft 13.