baber/WOPTO huggingface dataset:
Patent GB-247184-A (GB)
Title: Improvements in prismatic glasses of automobile head-lights
IPC: F21V5/00
Filed: 1926-02-01
Abstract: 247,184. Soc. Anon. Franþaise Holophane. Feb. 4, 1925, [Convention date]. Lenses.-The front glass of a vehicle lamp is provided on its inner surface with a central series of horizontal prisms P<c> of relatively large prism angle surrounded by an annular series of horizontal prisms P<m> of smaller prism angle, the two series of horizontal prisms being adapted to refract downwardly the slightly divergent and substantially parallel beams of light projected from the central and outer portions of a parabolic reflector. The angle of the prisms P<c> may be about twice that of the prisms P<m>. If desired more than one annular series of prisms may be used, in which case the prism angles of the different annular series are progressively larger towards the centre. The outer surface of the glass is provided with a central series of vertical prisms or ribs C<c>, on each side of which are arranged one or more lateral series of vertical prisms or ribs C<m>, the different series of vertical prisms or ribs being adapted to refract sideways the beam of light projected from the corresponding portions of the parabolic reflector, the centre ribs C<c> being smaller and closer together so as to have a greater diverging effect than the lateral ribs C<m>. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the replacement of the horizontal prisms P<c> by a translucent or opaque coating on the central portion of the glass. This subject-matter does not appear in the Specification as accepted.
Patent GB-828392-A (GB)
Title: Improvements in or relating to cloches
IPC: A01G13/04
Filed: 1958-01-28
Abstract: 828,392. Cloches. AITKEN, R. Jan. 28, 1958, No. 2879/58. Class 20(1) A cloche comprises two rectangular U- shaped frame members 1 and 2 pivotally connected at their bases 4 and covered with a sleeve of a flexible translucent synthetic material so that the open ends 6 of the sleeve are disposed parallel to the pivoted bases. The U-shaped members may be of metal or synthetic resin and are pivoted together by means of a metal or plastic sleeve 5 or by winding a tape or wire about both the base members 4. The covering sleeve has triangular cut-outs in the region where the frame folds and it can be made from sheet polythene.
Patent GB-897278-A (GB)
Title: Novel pyrrolidones and a process for the manufacture thereof
Filed: 1961-01-26
Abstract: The invention comprises pyrrolidones of the general formula <FORM:0897278/IV (b)/1> together with their acid addition salts, wherein n represents an integer from 1 to 6, R1 and R2 individually represent alkyl groups or, together with the nitrogen atom to which they are attached, a five- or six-membered heterocyclic ring and "Aryl" includes a phenyl radical both unsubstituted and substituted by one or more alkyl groups or halogen atoms and the preparation thereof by reacting either an alkali-metal derivative of a 3-aryl-3-alkyl-pyrrolidone-(2) with an o  - (disubstituted - amino) - alkyl halide of the formula <FORM:0897278/IV (b)/2> or the said pyrrolidone with an a , o -dihalogenoalkane of the formula Halogen-(CH2)n-halogen and reacting the product with a secondary amine of the formula <FORM:0897278/IV (b)/3> or, where n in the product is to be unity, the said pyrrolidone with formaldehyde (or a substance which yields formaldehyde under the conditions of the reaction) and the said secondary amine  The 3-Aryl-3-alkyl-pyrrolidone-(2)s used as starting materials are prepared by condensing the appropriate aryl-alkyl-acetonitriles (in the form of their alkali-metal salts) with ethylene oxide to yield a -aryl-a -alkyl-g -hydroxybutyronitriles, cyclizing the latter with acids to give a  - aryl - a  - alkyl - g  - hydroxy - butyrolactones and treating the latter with ammonia.  Pharmaceutical compositions useful as antirheumatics and analgesics comprise pyrrolidones of the invention in admixture with a pharmaceutical organic or inorganic, solid or liquid carrier suitable for enteral or parenteral administration.  The composition may contain other therapeutically useful substances. Examples are given of tablets, capsules and a sterile solution for injection.
Patent GB-105247-A (GB)
Title: Improvements in Telescopes and other Optical Instruments.
Inventor: TAYLOR WILLIAM
IPC: G02B7/02
Filed: 1916-03-01
Abstract: 105,247. Taylor, W. March 1, 1916. Telescopes; mounting optical elements.-In optical instruments, lenses or other optical elements are mounted in a container, into which they are placed through lateral apertures, the container having means for positioning the element centrally, squarely, and longitudinally, and means being provided to retain the elements in the container. Fig. 1 shows the invention applied to a telescope. A tubular container e, having apertures e<2>, e<3>, e<4> and carrying the lenses in cells, forms a lining to the draw-tube a, a screwed eye-cap f permitting its removal. The aperture e<2> has notches e<6> in one edge, with which appropriate projections h<2> on lens cells h, g engage to position the cells longitudinally and to prevent them from being placed in reversed positions. The cells h, g each carry a lens at one end and a diaphragm at the other, and are retained in the container by the draw-tube a, being of such a length that the engagement of their cylindrical surfaces with the container positions them squarely within it. The cell g may be removed and the cell k slid, either manually or by a spring, into a position farther from the eye-cap to vary the power of the telescope. The field lenses are carried in cells which are placed in apertures e<3>, e<4>, these apertures having different widths to prevent the cells from being placed in the wrong order. These cells may be retained by cutting the apertures to a depth somewhat less than the radius of the container, so that the walls of the container are first sprung open and afterwards close on the cells as they are inserted; or, alternatively, they are retained by springs which act in a similar manner. Buttresses, formed by pressing lugs e<5> out of the wall of the container or otherwise, may be provided to position the field lenses squarely in the container. The draw-tube a excludes light from the container e, and the joint between it and the surrounding draw-tube b comprises a lining c within the draw-tube b, and a pressure spring d.
Patent GB-810891-A (GB)
Title: Improvements in stuck sleeve or socket joints in polyethylene pipes
IPC: C09J167/06
Filed: 1957-01-29
Abstract: In a method for the production of stuck sleeve or socket joints in polyethylene pipes an unsaturated polyester resin is used as the adhesive for the joint.  By "unsaturated polyester resins" are meant mixtures of unsaturated polyesters with vinyl compounds, preferably aromatic vinyl compounds such as styrene, methylstyrene and chlorostyrene.  The unsaturated polyesters are built up from glycols, polyglycols and if desired, polycyclic perhydric alcohols and dicarboxylic acids, for example mixtures of unsaturated acids such as maleic, fumaric, itaconic acids and Diels-Alder adducts of maleic anhydride with cyclopentadiene and saturated acids such as phthalic, tetrachlorophthalic, adipic and sebacic acids.  For hardening there is added a catalyst such as cyclohexanone peroxide or methyl ethyl ketone peroxide and a polymerization accelerator such as cobalt naphthenate.  Examples describe the joining of polythene tubes either socketed or with a slip on sleeve of polyvinyl chloride, the joints being stuck with a mixture of an unsaturated polyester prepared according to Specification 766,666, styrene, cyclohexanone peroxide and cobalt naphthenate.
Patent GB-600319-A (GB)
Title: Apparatus for cleaning the card clothing of the carding cylinders of carding engines
IPC: D01G15/76
Filed: 1945-02-07
Abstract: 600,319. Carding-engines. CASTELL, A. M. Feb. 7, 1945, No. 3082. Convention date, May 16, 1944. [Class 120(i)] Apparatus for the continuous cleaning of the card clothing 6 of the main carding cylinder 5 of flat carding-engines comprises an electrically driven aspirating device mounted as close as practicable tc the points of the card clothing, at the front of the carding engine above the cover 4 of the licker-in and in the space between the latter and the curve formed by the flats, means for supporting said device and for permitting regular and gradual displacement thereof along the length of the cylinder in both directions, and an outlet conduit for discharging the material aspirated either in front of the feed cylinder 3 or above the point of aspiration. As shown, an electric motor 9 driving an aspirator 8 traverses the carding cylinder on a rotating double-threaded supporting rod 14, and a suction nozzle 10 moves in a transverse slot 11 in the cylinder casing 7. Short fibres and solid particles are returned to the lap by an outlet conduit 12 discharging in front of feed cylinder 3 or alternatively by a conduit 12<SP>1</SP> discharging above the point of suction. Automatic cutout switches may be incorporated to interrupt the suction after predetermined periods of time; for example suction may be arranged to take place along one direction of travel only.
Patent GB-762784-A (GB)
Title: Improved means for jointing wire
Inventor: CARTER REGINALD DAVID
IPC: H01R4/62
Filed: 1954-02-03
Abstract: 762,784. Jointing. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Feb. 2, 1955 [Feb. 3, 1954], No. 3240/54. Class 83 (4). A method of making a connection between a wire or strand of ductile metal and a surrounding metal sleeve by compressing the sleeve to permanently deform it to bring its wall into close contact with the enclosed wire or strand is characterized in that a layer of an abrasive quality of finely divided alumina is provided between the sleeve and the wire or strand before compressing the sleeve. Particles of crushed fused alumina are applied to the inner surface of the sleeve and the wire with the aid of a semiliquid carrier, e.g. petroleum jelly or a mineral insulating oil.
Patent GB-1490164-A (GB)
Title: Toy
IPC: A63H27/14
Filed: 1976-03-17
Abstract: 1490164 Toys AIRFIX PRODUCTS Ltd 17 March 1976 [24 Jan 1975] 3274/75 Heading A6S A toy comprises a platform 10, Fig. 1, with a spring-loaded impeller 21a, &c releasably coupled to a toy aeroplane A which runs along a support line L attached at one end to a hand-control 12, 13, &c and at the other to a remote point (not shown) above the platform, the aeroplane being suspended from the line by hooks 17 and a rod 16, &c which allows it to turn through 180 degrees at the end of its travel away from the platform to which it then returns nose first. A lever 18, Fig. 5, and hook 18a in the toy aeroplane coact with a cam 20a on the suspension rod 16 so that on the outward flight the hook, &c is retained in a raised position, but after the aeroplane has turned through 180 degrees the hook, &c is lowered. At the end of the platform 10, a cover 56. Fig. 1. is pivoted to its shut position; on take-off of the aeroplane, the impeller 21a, &c runs along a slot 30, and, a cam (31), Fig. 6 (not shown) at its side engages a cam 32a, Fig. 3, on a lever journalled by pins 33. The lever pivots up an H-member 34 carrying funnels 37 through which pass a landing wire 36. The returning aeroplane A engages its hook 18a with the landing wire 36, and the cover 56 is raised to the position shown. The handcontrol 12, &c is mounted to the platform by a ball and socket joint 11, and the end of the line L is attached to a finger grip 13 slidable up and down the hand-control. The handcontrol 12, &c permits adjustment of the tension, &c of the line L. The toy aeroplane A has a pin 29 slidable into a socket in the impeller 21a, &c which is drawn along the slot 30 by an adjustably-tensioned rubber band (24), Fig. 2, running over a pulley. To cock the impeller 21a, &c, a string 23 is pulled, until the impeller engages a spring biassed catch (26, 21); the catch is released by a trigger 28. Reference has been directed by the comptroller to Specification 1405938.
Patent GB-634548-A (GB)
Title: Improvements relating to glass compositions
IPC: C03C27/00
Filed: 1948-02-04
Abstract: 634,548. Glass. BRITISH THOMSONHOUSTON CO., Ltd., STANWORTH, J. E., and DALE, A. E. Feb. 4, 1948, No. 3285. [Class 56] A glass consists substantially wholly of B 2 O 3 , PbO and ZnO in the percentage proportions by weight as fall within the shaded area of the ternary diagram, i.e. substantially 50-85 per cent PbO, 2-25 per cent ZnO and 12-35 per cent B 2 O 3 . Up to 10 per cent by weight SiO 2 +Al 2 O 3  and up to 2 per cent impurities can be tolerated at the expense of the other constituents in their specified proportions. Up to 5 per cent of ZnO may be replaced by BaO and/or SrO.
Patent GB-371498-A (GB)
Title: Improvements in and relating to machines for filling bottles
IPC: B67C3/26
Filed: 1931-02-03
Abstract: 371,498. Bottling. BLAXTER, A. P. and BLAXTER, A. P. L., (trading as BARNETT & FOSTER), and RAYMOND, C. W., Niagara Works, Eagle Wharf Road, London. Feb. 3, 1931, No. 3465. [Class 125 (ii).] Relates to filling- machines for bottles of the " open-snift " or open-vent type. In order to ensure filling bottles to a uniform height, a snifting tube 3 is employed communicating with the outlet 6, and this tube is arranged to remain in the bottle after the liquid supply valve is closed, and to draw off the surplus liquid from the overfilled b o t t l e . The tubes are arranged to move axially within the filling heads and means such as a spiral 19 may be provided in the head to deliver the liquid gently down the inside of the bottle. The invention may be employed in a rotary machine. Specification 5889/10, [Class 125 (ii), Bottles &c., Filling &c.], is referred to.
Patent GB-545679-A (GB)
Title: Resistance composition and method of making it
IPC: H01C7/04
Filed: 1941-03-14
Abstract: 545,679. Electric resistances. STANDARD TELEPHONES & CABLES, Ltd. March 14, 1941, No. 3490. Convention date, May 23, 1940. Addition to 540,844. Drawings to Specifications. [Class 37] A resistance material having a negative temperature-resistance co-efficient comprises a heattreated mixture of oxides of manganese and copper or of manganese, nickel, and copper. In an example the copper content may be about 15 per cent and the atomic ratio of manganese to nickel between 2 and 4. The material may be made by adding a solution of a copper compound to a mixture of oxides of manganese and nickel, drying the mixture, and heating it. Heating may be effected at 800-1450‹ C.
Patent GB-354288-A (GB)
Title: Method of and apparatus for interrupting high-tension currents
IPC: H01H33/66
Filed: 1930-02-01
Abstract: 354,288. Rectifying alternating currents. METALLGES. AKT.-GES., 45, Bockenheimer Anlage, Frankfort-on-Main, Germany. Feb. 1, 1930, No. 3499. Convention date, March 20, 1929. Void [Published under Sect. 91 of the Acts]. [Class 38 (ii).] Commutator switching-arrangements.-A threephase rectifier comprises three polarized vacuum switches 11 each comprising a pendulum 16 swinging between fixed contacts 14 and acted upon by a coil 17. The coils 17 are fed from tappings on the secondary winding 18 of a transformer the direct current flowing through the conductors 20, 21, the arrangement being somewhat similar to the Graetz circuit arrangement. In a modification the three vacuum tubes are combined into one.
Patent GB-549142-A (GB)
Title: Improved refractory material
IPC: C04B35/48
Filed: 1941-03-14
Abstract: 549,142. Refractories. C.U.R.A. PATENTS, Ltd., BENNETT, J. G., PIRANI, M., and THRING, M. W. March 14, 1941, Nos. 3513, 4844, 6271, 10418 and 15800. [Class 22] A refractory substance is produced by firing a mixture of a refractory substance of grain sizes ranging from a 72 to a 300 mesh screen with a bonding material consisting of finely subdivided particles of the same or a different refractory obtained by dry disintegration so as to obtain a grain size distribution in which at least 50 per cent. of the particles are below 50 Á and at least 1 per cent. below 2 Á. The particles are obtained by a method in which the material is disintegrated by impact and the fine particles continuously removed, for example in the apparatus described in Specification 432,191, [Group II], with the use of jets of air or dry steam. The grains and the particles may be formed of alumina, chromite, sillimanite, zircon sand, silica &c. Coarsely crushed zircon ore, chromite, or silicon carbide may be added to the mixture. A temporary binder such as starch or tar emulsion, and a substance such as kaolin, potassium fluoride, aluminous cement, potassium silicate or ball clay, which assists sintering and melts or sublimes at the firing temperature may be added. The refractory material may be formed as a coating upon another refractory, preferably before firing. Specification 572,380, [Group XII], also is referred to.
Patent GB-1466051-A (GB)
Title: Compositions containing prostaglandins
IPC: A61K31/405
Filed: 1975-01-28
Abstract: 1466051 Compositions containing prostaglandins UPJOHN CO 28 Jan 1975 [28 Jan 1974] 3615/75 Heading A5B A pharmaceutical composition comprises an anti-inflammatory prostaglandin synthetase inhibitor and a prostaglandin of the formula: wherein R, is H or C1-C8 alkyl; R, is methyl or ethyl, R3 is H, methyl or ethyl and X is -CH2CH2- or cis -CH=CH- or a pharmaceutically acceptable salt thereof when R, is H. The inhibitor may be, for example, indomethacin, aspirin, phenyl butazone, mefenamic acid, flufenamic acid, naproxen, 2-phenoxyphenylpropionic acid, (+)-3-chloro-4-cyclohexyl-alpha-methyl phenyl acetic acid or ibuprofen. The compositions may be administered orally, rectally or vaginally.
Patent GB-746619-A (GB)
Title: Process for the separation of liquids obtained by partial condensation of gaseous products emanating from coke ovens
IPC: C10K1/00
Filed: 1954-02-08
Abstract: 746,619. Gravity-separation apparatus; treating liquids and waste effluents. UNION CHIMIQUE BELGE SOC. ANON. Feb. 8, 1954 [Feb. 6, 1953], No. 3671/54. Classes 46 and 111. Condensation liquids issuing from a cokeoven " barrel " are introduced at 1, rise, and surround an internal vessel 3 in which tar collects. The up-flow rate is reduced when the liquids reach the level of the upper edge of the vessel 3 and further separation occurs, the tar descending to the bottom of the vessel 3 and the ammoniacal liquors leaving at 7. The tar is continuously or intermittently removed to a dehydratedtar reservoir through a pipe 6. Regulating devices on the pipes 6 and 7 may effect flow of the tar by means of hydrostatic head in the apparatus and the pipe 7. One or more baffles 4 may be provided.
Patent GB-648348-A (GB)
Title: Meat slicing and like machines
IPC: B26D7/12
Filed: 1948-02-09
Abstract: 648,348. Sharpening slicing-machine cutters. METCALFE IDEAL PRODUCTS, Ltd., and McMILLAN, J. Feb. 9, 1948, No. 3685. [Class 60] The sharpening-unit of a meat-slicing machine having a rotatable circular knife is movable about a fixed axis from an operative to an inoperative position, and vice versa, and comprises a grinding-wheel and a trueing-wheel 13, the latter being brought into contact with the knife, when the unit is in operative position, by means mounted on the machine frame and actuable by a knob 29 disposed well remote from the unit and knife. The wheel 13 is secured to a spindle 12 rotatably but non-slidably mounted in a sleeve which has teeth 17 in mesh with a pinion 18 and is slidably keyed to the frame of the unit. The pinion 18 is keyed to a shaft 19 biassed by a spring 21 to move the wheel to the inoperative position and provided with an arm 20 in engagement with an axially-displaceable rod 24 which is spring-biassed in a direction away from the arm 20. The lower end of this rod is in contact with one limb of a bell-crank lever 27, the other limb of which is connected through a spring 31 with the control-knob 29. When the latter is pulled, the bell-crank lever is deflected displacing the rod 24 to cause rotation of the shaft 19 and bring the wheel 13 into contact with the knife. The spring 31 serves to limit the pressure which can be applied by the operator. Specifications 648,346 and 648,347 are referred to.
Patent GB-451639-A (GB)
Title: Improvements in axle arrangements, more particularly for power driven vehicles
IPC: B60G21/00
Filed: 1936-02-07
Abstract: 451,639. Spring - suspensions; vibration - dampers. DAIMLER-BENZ AKT.- GES., Unterturkheim, Stuttgart, Germany. Feb. 7, 1936, No. 3772. Convention date, Feb. 18, 1935, Addition to 433,203. [Classes 108 (ii) and 108 (iii)] In the parent Specification a main axle is guided on the frame or on a part connected thereto by means of substantially vertical guide tracks, the axle being guided and restrained from lateral movement by means of a single pair of rollers or shoes, and the present invention comprises means for increasing the resistance to movement on the vertical guide as the axle moves away from its normal position. In Fig. 2, the vertical guide g is mounted on the frame a and opposed rollers i, carried in mountings p on the axle c, are forced by springs h into contact with the guide, the shape of the guide being such that the springs are compressed when moved vertically from their normal position. Rubber rollers or spring plungers may be used and in Fig. 6 the rollers are mounted on bell-cranks o, and the shape of the guide is such that no additional resistance occurs for a slight displacement, but increases rapidly for a large displacement and thereafter remains constant. Similar or dissimilar resistance affects may be arranged in the upward and downward movement of the axle.
Patent GB-210984-A (GB)
Title: Improvements in or relating to portable vapour-burner incandescent lamps
IPC: F23D99/00
Filed: 1923-02-08
Abstract: 210,984. Macfarlane, M. Feb. 8, 1923. Hand lamps.-In a portable incandescent vapour lamp, the burner is arranged at an inclination at the side of the fuel reservoir so as to provide an uninterrupted beam of light when the lamp is supported in various positions. The lamp comprises a reservoir a having a flat base and provided with the usual air pump d and a vent closed by a screw e, the fuel being delivered to a vaporizer in the burner head b by a looped tube g. The burner head b which carries a mantle b', globe b<2> and wire guard b<3> is carried by a short tube h which may contain a filter and is provided with cooling ribs. The lamp is provided with a handle c secured to the reservoir by members i, l, the member i being bent at i<1> to receive the tube h and the member l being formed with a loop at l<1> by means of which the lamp may be suspended from a chain or the like. For enabling the lamp to be supported on a wall a plate k arranged parallel with the axis of the burner head is provided on the reservoir a, the plate being provided with a key-hole slot in its upper portion for engaging a nail or the like projecting from the wall.
Patent GB-865872-A (GB)
Title: Low thermal expansion ceramic body and a method of making it
IPC: C04B35/19
Filed: 1959-02-03
Abstract: A low thermal expansion ceramic body comprising petalite and 1-10% by weight as the oxide of an alkaline earth metal oxide or silicate or an alkaline earth metal compound which decomposes to the oxide below 1100 DEG C., is fired at 1100 DEG C. to 1330 DEG C.  The compounds added may be the carbonates, nitrates, sulphates of Mg, Ca, Sr and Ba or minerals such as talc, dolomite, limestone, periclase, witheute, wollastonite, aragonite and brucite.  The finely ground components are made into a slip with demineralised water Na2CO3 and Na2SiO3 and slip cast to shape and fired to convert the petalite into a solid solution of silica and beta-spodumene.  A lubricant such as polyethylene glycol may be added to the raw materials and shaping effected by pressing.